Automated assembly apparatus for extension ladder rung assemblies

Abstract

The application discloses an automatic assembling device for a telescopic ladder pedal assembly, which comprises a rack, a first assembling device for assembling a spring seat, a return spring and a locking pin into a first assembling body, a first rotating disc rotating intermittently, a spring seat feeding mechanism, a spring feeding mechanism and a locking pin feeding mechanism arranged along the outer periphery of the first rotating disc in sequence, a second assembling device for assembling the first assembling body and a connecting ring into a second assembling body, a second rotating disc rotating intermittently, a connecting ring feeding mechanism and a first assembling mechanism arranged on the periphery of the second rotating disc, and a third assembling device for assembling the second assembling body and a foot pedal rod into a foot pedal assembly, a foot pedal rod feeding mechanism, a conveying mechanism, a second assembling mechanism, a first carrying mechanism and a second carrying mechanism. The automatic assembling of the pedal assembly is realized through the cooperation of various mechanical devices, the production efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] This invention relates to an automated assembly device, and more particularly to an automated assembly device for a telescopic ladder tread assembly. Background Technology

[0002] A telescopic ladder is a type of ladder that can be extended and shortened, making it convenient to carry and store. Structurally, a telescopic ladder consists of two telescopic tubes and multiple steps, which are connected to the telescopic tubes via connecting components. The connecting components are slidably connected to the telescopic tubes and can be locked in a set position.

[0003] For example, the telescopic ladder disclosed in patent CN216043482U includes two vertical bars and multiple footrests disposed between the two vertical bars. The footrests are connected to the vertical bars on both sides through connecting mechanisms at both ends. The connecting mechanisms include a connecting ring, a locking rod, a return spring, an operating handle, and a spring seat. The connecting ring includes an integrally formed insertion part and an annular part. The spring seat includes a insert plate and a sleeve vertically disposed on the insert plate and closed at one end. The side of the insertion part has slots corresponding to the spring seat and the locking rod. The spring seat and the locking rod are inserted into the slots. The spring seat is detachably connected to the insertion seat through the insertion of the insert plate and the slot. The spring is placed inside the sleeve of the spring seat. The rear end of the locking rod is inserted into the sleeve and... Pressed against the internal spring, the return spring drives the locking lever to the locked position. The annular part has a through hole for the front end of the locking lever to pass through. The front end of the locking lever is inserted into the through hole of the annular part. The locking lever has a limiting ring with a diameter larger than the through hole. The annular part is inserted into both ends of the foot pedal crossbar through a plug-in part. The side of the foot pedal crossbar has a clearance hole to avoid the operating handle. The side of the plug-in part has a movable hole communicating with the slot. The operating handle includes an operating part and a drive rod. The end of the drive rod has an elastic clamp. The locking lever has a neck. The drive rod passes through the clearance hole and the movable hole and is inserted into the slot, and the elastic clamp is clamped on the neck. The user can move the locking lever to the unlocked position by moving the operating part.

[0004] The pedal assembly includes components such as the foot pedal crossbar, connecting ring, locking rod, return spring, and spring seat. Currently, the installation of the pedal assembly is mainly completed manually by workers, which results in low production efficiency and high labor costs. Summary of the Invention

[0005] To address the issues of low production efficiency caused by manual assembly by workers, this invention provides an automated assembly device for telescopic ladder tread assembly.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problem is: an automated assembly equipment for telescopic ladder tread assembly, comprising: frame; A first assembly device is used to assemble a spring seat, a return spring, and a locking pin into a first assembly. It includes a first turntable that rotates intermittently, and a spring seat feeding mechanism, a spring feeding mechanism, and a locking pin feeding mechanism arranged sequentially along the outer periphery of the first turntable. The first turntable is provided with a plurality of first clamps arranged circumferentially. Each first clamp is provided with a first positioning groove for the lateral insertion of the spring seat and a limiting pressure plate that can slide relative to the first clamp along the radial direction of the first turntable and press the locking pin. A first return tension spring is provided between the limiting pressure plate and the first clamp. A first driving mechanism is provided on the first turntable or frame for driving the limiting pressure plate to move. The spring seat feeding mechanism is used to feed the spring seat into the first positioning groove. The spring feeding mechanism is used to feed the return spring to the first clamp and install the return spring into the spring seat. The locking pin feeding mechanism is used to feed the locking pin to the first clamp and install the locking pin on the spring seat. The second assembly device is used to assemble the first assembly and the connecting ring into a second assembly. It includes a second turntable that rotates intermittently, a connecting ring feeding mechanism and a first assembly mechanism arranged around the second turntable. The second turntable is provided with a plurality of second clamps arranged circumferentially. The second clamps are provided with second positioning grooves for the insertion part of the connecting ring to be inserted laterally. The top of the second clamps is provided with an inlet for the assembly parts to be inserted into the insertion part of the connecting ring. The connecting ring feeding mechanism is used to feed the connecting ring into the second positioning groove. The first assembly mechanism is located between the first turntable and the second turntable. The first assembly mechanism is used to insert the first assembly assembled on the first clamp into the insertion part of the connecting ring. The third assembly device is used to assemble the second assembly and the foot pedal into a foot pedal assembly. It includes a foot pedal feeding mechanism, a conveying mechanism, a second assembly mechanism, a first conveying mechanism, and a second conveying mechanism. The conveying mechanism includes a conveying track extending along the X-axis and a first feeding component. Multiple foot pedal stations are spaced apart along the X-axis on the conveying track. The foot pedal feeding mechanism conveys the foot pedal to the input end of the conveying track, and the first feeding component conveys the foot pedal from the input end to each level of the foot pedal station. One side of the conveying track has a conveying area for the first and second conveying mechanisms to pick up materials. The conveying area is located between the second turntable and the conveyor. A transfer mechanism is provided to transfer the second assembly on the second fixture to the transport area. The two sides of the conveyor track are respectively provided with a first assembly area and a second assembly area corresponding to the foot pedal station. The first transport mechanism is used to transport the second assembly in the transport area to the first assembly area on the same side. The second transport mechanism is used to transport the second assembly in the transport area to the second assembly area on the other side. During this process, the second assembly is rotated 180° around the vertical axis to adjust the plug part of the connecting ring to be opposite to the foot pedal station. The second assembly mechanism is used to assemble the second assembly in the first assembly area and the second assembly area with the foot pedal on the corresponding foot pedal station in a plug-in manner.

[0007] A further preferred embodiment of the present invention is as follows: the spring seat feeding mechanism includes a first vibrating feeding plate, a first feeding channel, and a first pushing assembly. The input end of the first feeding channel is connected to the first vibrating feeding plate, and the output end of the first feeding channel is provided with a first feeding seat. The first feeding seat is provided with a first feeding channel and a first discharging channel that are connected to each other. Both sides of the first feeding channel and the first discharging channel are provided with a first guide groove for guiding and cooperating with the insert plate of the spring seat. The input end of the first feeding channel is connected to the output end of the first feeding channel. The first discharging channel is provided at the output end of the first feeding channel and has a first discharge port opposite to the first clamp and a first pushing port opposite to the first pushing assembly. The first pushing assembly includes a first pushing member and a first pushing cylinder for driving the first pushing member to move. The first pushing member can push the spring seat in the first discharging channel into the corresponding first positioning groove. The spring feeding mechanism includes a second vibrating feeding plate, a first feeding pipe, a first baffle assembly, and a first loading assembly. The second vibrating feeding plate is used to feed the reset springs into the first feeding pipe. The first baffle assembly includes a first lifting bracket and a first lifting cylinder that drives the first lifting bracket to rise and fall. The first lifting bracket is provided with a first baffle and a second baffle, the second baffle being a baffle pin. The first feeding pipe is provided with a first insertion port opposite to the second baffle. When the first lifting bracket rises, the first baffle blocks in front of the outlet of the first feeding pipe and leaves a gap between it and the outlet for the reset spring to extend. The second baffle is located outside the first feeding pipe. When the first lifting bracket falls, the first baffle moves away from in front of the outlet of the first feeding pipe, and the second baffle is inserted into the first feeding pipe through the first insertion port and blocks behind the first reset spring. The first loading assembly includes a second lifting bracket, a second lifting cylinder that drives the second lifting bracket to rise and fall, and a first tilting drive cylinder. The system comprises a first sliding block and a first finger cylinder, a first tilting drive cylinder and a first sliding block mounted on a second lifting bracket. The first sliding block can be pushed by the first tilting drive cylinder to slide horizontally relative to the second lifting bracket. The first sliding block is provided with a first rotating shaft, one end of which is connected to the first finger cylinder. The first finger cylinder is connected to two first grippers that can open and close. The other end of the first rotating shaft is connected to a first rocker arm, and the other end of the first rocker arm is provided with a first sliding part. The second lifting bracket is provided with a first sliding groove on one side of the first sliding block. The first sliding groove includes a first horizontal groove and a first arc groove. The first sliding part slides into the first sliding groove. When the first sliding part slides into the first horizontal groove, the first gripper faces downward and is opposite to the outlet of the first feeding pipe. The first gripper can grab the return spring at the outlet of the first feeding pipe. When the first sliding part slides into the first arc groove, the first gripper flips to face horizontally forward and is opposite to the first clamp. The first gripper can put the grabbed return spring into the spring seat. The locking pin feeding mechanism includes a third vibrating feeding plate, a second feeding seat, and a second loading assembly. The second feeding seat has a second feeding channel, and first clearance openings are provided on both sides of the second feeding channel. The third vibrating feeding plate is used to feed locking pins into the second feeding channel. The second loading assembly includes a third lifting bracket, a third lifting cylinder for driving the third lifting bracket to rise and fall, a second tilting drive cylinder, a second slide block, and a second finger cylinder. The second tilting drive cylinder and the second slide block are mounted on the third lifting bracket. The second slide block can be pushed by the second tilting drive cylinder to slide horizontally relative to the third lifting bracket. The second slide block has a second rotating shaft, and one end of the second rotating shaft is connected to the second finger cylinder. The cylinder has two second grippers connected to the second finger cylinder, which can open and close. The other end of the second rotating shaft is connected to a second rocker arm, and the other end of the second rocker arm is provided with a second sliding part. The third lifting bracket is provided with a second sliding groove on one side of the second slide block. The second sliding groove includes a second horizontal groove and a second arc groove. The second sliding part slides in cooperation with the second sliding groove. When the second sliding part slides into the second horizontal groove, the second grippers face downwards and are opposite to the second feeding channel. The second grippers can grab the locking pin in the second feeding channel. When the second sliding part slides into the second arc groove, the second grippers flip to face horizontally forward and are opposite to the first clamp. The second grippers can mount the grabbed locking pin on the spring seat. The first turntable has a fixed plate at its center, and a first drive mechanism is mounted on the fixed plate. The first drive mechanism includes a pull claw and a first push cylinder that drives the pull claw to move. The pull claw has two pulling parts that are opposite each other, and there is a gap between the pulling parts for the limit plate to pass through. The limit plate has a mating part that cooperates with the pull claw. When the first clamp rotates with the first turntable to a position opposite to the locking pin feeding mechanism, the mating part on the limit plate enters the pull claw, and the pull claw can pull the mating part through the pulling part to move the limit plate.

[0008] A further preferred embodiment of the present invention is as follows: the connecting ring feeding mechanism includes a fourth vibrating feeding plate, a third feeding channel, a third feeding seat, a second pushing component, and a first transferring component. The third feeding channel is connected to the output end of the fourth vibrating feeding plate, the third feeding seat is located on one side of the third feeding channel, and a second clearance opening is provided at the bottom of the third feeding seat. The first transferring component includes a first PPU manipulator and a third finger cylinder. The third finger cylinder is connected to the first PPU manipulator and can be driven by the first PPU manipulator to move vertically and horizontally. The third finger cylinder is connected to... The device has two third grippers that can open and close. The third grippers grip the connecting ring on the third feeding channel and place it on the third feeding seat. The second pushing assembly includes a second pushing cylinder, a first displacement bracket, a fourth lifting cylinder, and a second pushing component. The first displacement bracket is connected to the second pushing cylinder and can be driven to move by the second pushing cylinder. The fourth lifting cylinder is set on the first displacement bracket. The second pushing component is located below the third feeding seat. The second pushing component is connected to the fourth lifting cylinder and can be driven to rise and fall by the fourth lifting cylinder. The second pushing component can push material upward through the second clearance opening. The second turntable is equipped with a soft pad feeding mechanism around its periphery. This mechanism is used to feed soft pads to the second fixture and mount them onto the second assembly. The soft pad feeding mechanism includes a fifth vibrating feeding disc, a fourth feeding channel, a third pushing assembly, and a third loading assembly. The input end of the fourth feeding channel is connected to the output end of the fifth vibrating feeding disc. The output end of the fourth feeding channel is provided with a fourth feeding seat. The fourth feeding seat has a first pushing channel that runs vertically through it. The first pushing channel has a second discharge port at the upper end and a second pushing port at the lower end, opposite to the third pushing assembly. The lower end of the first pushing channel is connected to the output end of the fourth feeding channel. The upper end of the material channel is provided with third clearance openings on both sides. The third pushing component includes a third pushing cylinder and a third pushing part. The third pushing part is connected to the third pushing cylinder and can be driven by the third pushing cylinder to move up and down. The third pushing part is provided with two third positioning slots corresponding to the two pins of the soft pad block. The third loading component includes a second PPU manipulator and a fourth finger cylinder. The fourth finger cylinder is connected to the second PPU manipulator and can be driven by the second PPU manipulator to move up and down and translate. The fourth finger cylinder is connected to two fourth grippers that can open and close. The fourth grippers can grab the soft pad block pushed out from the second discharge port and load it onto the second assembly.

[0009] A further preferred embodiment of the present invention is as follows: the first assembly mechanism includes a drive component and a fifth finger cylinder. The fifth finger cylinder can be driven to move and rotate 90° by the drive component, so that the fifth finger cylinder can switch between a vertically downward state and a horizontally forward state. Two fifth grippers that can open and close are connected to the fifth finger cylinder. When the fifth finger cylinder is in the horizontally forward state, the fifth finger cylinder is opposite to the first clamp, and the fifth grippers can grip the first assembly assembled on the first clamp. When the fifth finger cylinder is in the vertically downward state, the fifth finger cylinder is opposite to the second clamp, and the fifth grippers can insert the first assembly downward into the insertion part of the connecting ring. Alternatively, the first assembly mechanism may include a gripper assembly, an ejector assembly, and a pressing assembly. The gripper assembly includes a third displacement bracket, a twenty-third displacement driver that drives the third displacement bracket to move, a second rotary driver, a second rotary bracket, a twenty-fourth displacement driver, and a ninth finger cylinder. The second rotary driver is mounted on the third displacement bracket and is connected to the second rotary driver, and can be driven to rotate by the second rotary driver. The twenty-fourth displacement driver is mounted on the second rotary bracket. The ninth finger cylinder is connected to the twenty-fourth displacement driver and can be driven to move back and forth by the twenty-fourth displacement driver. The ninth finger cylinder is connected to two ninth grippers for clamping. The second rotary bracket can drive the ninth finger cylinder to rotate, so that the ninth finger cylinder can switch between a horizontal forward state and an oblique downward state. The ninth grippers on the ninth finger cylinder can clamp the first assembly assembled on the first fixture and insert one end of it into the insertion part of the connecting ring in an oblique state. The ejector assembly is used to hold the other end of the inserted first assembly that is raised. The pressing assembly is used to press the other end of the first assembly that is raised into the insertion part of the connecting ring.

[0010] A further preferred embodiment of the present invention is as follows: the second turntable is located on one side of the left and right sides of the conveying track. The transfer mechanism is used to transfer the second assembly on the second clamp to the transport area along the Y-axis. The transfer mechanism includes a rotary feeding assembly, a second feeding channel, a second discharging channel, and a fourth pushing assembly. The second feeding channel and the second discharging channel are arranged on both sides of the rotary feeding assembly. The rotary feeding assembly includes a third turntable that rotates around a horizontal axis. The third turntable is provided with multiple transfer shells extending radially therefrom. The multiple transfer shells are arranged in a ring array with the rotation axis of the third turntable as the center. The transfer shell is provided with a material storage bin. The outer end of the transfer shell is provided with an inlet and outlet of the material storage bin. The inner end of the transfer shell is provided with a third pushing port. The transfer shell can be rotated to flip the second assembly it contains so that the insertion part of the connecting ring faces the conveying track. When the second clamp rotates with the second turntable to a position opposite to the transfer mechanism, the second feeding channel is set between the second clamp and the rotary feeding assembly. The fourth pushing component includes a first displacement driver, a second displacement bracket, a fourth pushing component, and a fifth pushing component. The second displacement bracket is connected to the first displacement driver and can be driven to move horizontally by the first displacement driver. The fourth and fifth pushing components are spaced apart on the second displacement bracket. Each second clamp on the second turntable forms a first central receiving area around the center of the second turntable. Each material transfer shell forms a second central receiving area around the center of the third turntable. The fourth pushing component is located in the first central receiving area and is used to push the second assembly assembled on the second clamp into the material receiving hopper. The fifth pushing component is located in the second central receiving area and is used to push the second assembly in the flipped material receiving hopper onto the second discharge channel.

[0011] A further preferred embodiment of the present invention is as follows: the foot pedal feeding mechanism includes a lifting conveyor, a conveyor belt, a fifth pushing component, and a fifth feeding channel. The conveyor belt is located on one side of the discharge port of the lifting conveyor. The fifth feeding channel and the fifth pushing component are located opposite each other on both sides of the end of the conveyor belt. The fifth pushing component includes a sixth pushing element and a fourth pushing cylinder that drives the sixth pushing element to move linearly back and forth. The fifth feeding channel includes an upper channel and a lower channel distributed vertically. The input end of the upper channel is used to receive the foot pedal pushed by the fifth pushing component. The output end of the upper channel is provided with a discharge port, which is opposite to the lower channel below. The distance between the discharge port and the lower channel is only enough to accommodate one foot pedal. The lower channel is located at the input end of the conveying track. A forward / reverse detection area is provided between the upper channel and the end of the conveyor belt. The forward / reverse detection area is provided with a first lifting receiving assembly, a forward / reverse detector, and a flipping clamping assembly. The first lifting receiving assembly includes a lifting receiving plate and a fifth lifting cylinder. The lifting receiving plate is connected to the fifth lifting cylinder and can be driven to lift by the fifth lifting cylinder. The two sides of the lifting receiving plate are respectively connected to the input end of the upper channel and the end of the conveyor belt. The foot pedal pushed out from the conveyor belt enters the upper channel through the lifting receiving plate. The forward / reverse detector is used to detect the forward / reverse orientation of the foot pedal on the lifting receiving plate. The flipping clamping assembly includes an active rotary clamp and a driven rotary clamp located above the two sides of the lifting receiving plate. The active rotary clamp and the driven rotary clamp are arranged opposite to each other. The driven rotary clamp is connected to a second displacement driver, and the active rotary clamp is connected to a twentieth displacement driver. The first feeding assembly transports the foot pedals that fall on the lower channel to each foot pedal station in stages. The first feeding assembly includes a feeding bracket, a third displacement driver that drives the feeding bracket to move along the X-axis, and a first lifting driver that drives the feeding bracket to move up and down along the Z-axis. Both sides of the feeding bracket are provided with multiple lifting components arranged in the X-axis direction. The lifting components on both sides are arranged one-to-one opposite each other. The lifting components are provided with support grooves. The feeding bracket transports the foot pedals on the lower channel and each foot pedal station forward step by step through the support grooves. A push-button feeding mechanism is arranged around the periphery of the conveying track. This mechanism is located downstream of the second assembly mechanism, along the conveying direction of the foot pedal. There are two sets of push-button feeding mechanisms, distributed on the left and right sides of one of the primary foot pedal positions. These two sets are used to convey switch push buttons to both sides of the foot pedal position and mount them onto both ends of the foot pedal assembly. The push-button feeding mechanism includes a sixth vibrating feeding plate, a sixth feeding channel, a sixth pushing assembly, and a fourth loading assembly. The input end of the sixth feeding channel is connected to the output end of the sixth vibrating feeding plate. A fifth feeding seat is provided at the output end of the sixth feeding channel. The fifth feeding seat has a second pushing channel connected to the output end of the sixth feeding channel. One end of the second pushing channel has a fourth pushing port. The sixth pushing assembly includes a seventh pushing component and a fifth pushing cylinder that drives its movement. The seventh pushing component is located within the second pushing channel and has a... The fourth positioning groove corresponds to the drive rod of the switch push button. When the seventh pusher is in the initial position, the fourth positioning groove is connected to the outlet of the sixth feeding channel. The second pushing channel has fourth clearance openings on both sides. The fourth loading assembly includes a fourth displacement driver, a fourth displacement bracket, a first rotary driver, a first rotary bracket, a fifth displacement driver, and a sixth finger cylinder. The fourth displacement bracket is connected to the fourth displacement driver and can be driven to move by the fourth displacement driver. The first rotary driver is set on the fourth displacement bracket. The first rotary bracket is connected to the first rotary driver and can be driven to rotate by the first rotary driver. The fifth displacement driver is set on the first rotary bracket. The sixth finger cylinder is connected to the fifth displacement driver and can be driven to move forward or backward by the fifth displacement driver. The sixth finger cylinder is connected to two sixth grippers that can be opened and closed. The sixth grippers move and rotate to grab the switch push button and mount it onto the foot pedal assembly.

[0012] A further preferred embodiment of the present invention is as follows: a punching mechanism is provided around the periphery of the conveying track. The punching mechanism is located upstream of the second assembly mechanism along the conveying direction of the foot pedal. The punching mechanism includes a left punching assembly for punching holes at the left end of the foot pedal and a right punching assembly for punching holes at the right end of the foot pedal. The left punching assembly and the right punching assembly are respectively configured to correspond to two foot pedal positions. The left punching assembly includes a first right push plate located to the right of the foot pedal station, a sixth displacement actuator that drives the first right push plate to move along the Y-axis, a first left push plate located to the left of the foot pedal station, a seventh displacement actuator that drives the first left push plate to move along the Y-axis, a first punching part with a punch, a first driving block, and an eighth displacement actuator that drives the first driving block to move along the Y-axis. The first left push plate is provided with a first positioning block opposite to the foot pedal station, and the first positioning block is provided with a first clearance channel. The first punching part is located on one side of the first positioning block in the X-axis direction, and the punch is opposite to the first clearance channel. The first driving block and the first punching part are in contact via an inclined surface. The first driving block can push the first punching part to move along the X-axis. A second return spring is provided between the first punching part and the frame. The right-side punching assembly includes a second right push plate located to the right of the foot pedal station, a ninth displacement driver that drives the second right push plate to move along the Y-axis, a second left push plate located to the left of the foot pedal station, a tenth displacement driver that drives the second left push plate to move along the Y-axis, a second punching part with a punch, a second drive block, and an eleventh displacement driver that drives the second drive block to move along the Y-axis. The second right push plate is provided with a second positioning block opposite to the foot pedal station. The second positioning block is provided with a second clearance channel. The second punching part is located on one side of the second positioning block in the X-axis direction, and the punch is opposite to the second clearance channel. The second drive block and the second punching part are in contact through an inclined surface. The second drive block can push the second punching part to move along the X-axis. A third return spring is provided between the second punching part and the frame.

[0013] A further preferred embodiment of the present invention is as follows: a riveting mechanism is provided around the periphery of the conveying track. The riveting mechanism is located downstream of the second assembly mechanism along the conveying direction of the foot pedals. The riveting mechanism includes a left riveting assembly and a right riveting assembly, which are respectively arranged corresponding to two foot pedal positions. The left riveting assembly includes a third right push plate located to the right of the foot pedal station, a twelfth displacement actuator that drives the third right push plate to move along the Y-axis, a left support base located to the left of the foot pedal station, a first pressure block located above the left support base, a second lifting actuator that drives the first pressure block to move up and down, a first limiting block for limiting the first pressure block, a thirteenth displacement actuator that drives the first limiting block to move, a first riveting head located below the left support base, and a third lifting actuator that drives the first riveting head to move up and down. The left support base has a fifth clearance opening for the first riveting head to pass upwards, a first abutment part for the left end of the foot pedal assembly to abut against, and a first limiting slot for the first limiting block to insert and limit. The right riveting assembly includes a third left push plate located on the left side of the foot pedal station, a fourteenth displacement driver that drives the third left push plate to move along the Y-axis, a right support seat located on the right side of the foot pedal station, a second pressure block located above the right support seat, a fourth lifting driver that drives the second pressure block to move up and down, a second limiting block for limiting the second pressure block, a fifteenth displacement driver that drives the second limiting block to move, a second riveting head located below the right support seat, and a fifth lifting driver that drives the second riveting head to move up and down. The right support seat is provided with a sixth clearance opening for the second riveting head to pass through upwards, and the right support seat is provided with a second abutment for the right end of the foot pedal assembly to abut against. The second pressure block is provided with a second limiting slot for the second limiting block to insert and limit.

[0014] A further preferred embodiment of the present invention is as follows: the second assembly mechanism includes a left-end assembly component and a right-end assembly component, the left-end assembly component and the right-end assembly component being respectively configured to correspond to two foot pedal positions therein. The left-end assembly includes a first right-side pusher located to the right of the foot pedal station, a sixteenth displacement driver that drives the first right-side pusher to move along the Y-axis, a first left-side pusher located to the left of the foot pedal station, and a seventeenth displacement driver that drives the first left-side pusher to move along the Y-axis. A first receiving seat is provided in the first assembly area between the foot pedal station and the first left-side pusher. The first receiving seat is connected to and can be lifted by the sixth lifting driver. The first receiving seat has a first receiving groove for receiving the second assembly carried by the first conveying mechanism. The first left-side pusher includes a first movable plate corresponding to the annular portion of the connecting ring. The first movable plate has a protruding first pusher portion that pushes material into the annular portion of the connecting ring. The right-end assembly includes a second left pusher located to the left of the foot pedal station, an eighteenth displacement driver that drives the second left pusher to move along the Y-axis, a second right pusher located to the right of the foot pedal station, and a nineteenth displacement driver that drives the second right pusher to move along the Y-axis. A second receiving seat is provided in the second assembly area between the foot pedal station and the second right pusher. The second receiving seat is connected to the seventh lifting driver and can be driven to lift by the seventh lifting driver. The second receiving seat is provided with a second receiving groove for receiving the second assembly body transported by the second conveying mechanism. The second right pusher includes a second moving plate corresponding to the annular portion of the connecting ring. A second pusher portion protrudes from the second moving plate and pushes material into the annular portion of the connecting ring.

[0015] A further preferred embodiment of the present invention is as follows: the first handling mechanism includes a fourth PPU robotic arm and a seventh finger cylinder. The seventh finger cylinder is connected to the fourth PPU robotic arm and can be driven by the fourth PPU robotic arm to move vertically and horizontally as well as translate along the Y-axis. The seventh finger cylinder is connected to two seventh grippers that can open and close. The seventh grippers can grasp the second assembly in the handling area and place it in the first assembly area. The second conveying mechanism includes a rotary lifting drive and a rotary transfer rack. The rotary lifting drive and the rotary transfer rack are located above the conveying track. The rotary transfer rack is connected to the rotary lifting device and can be driven to lift and rotate around a vertical axis by the rotary lifting device. The rotary transfer rack includes at least one rotary arm. The outer end of the rotary arm is provided with a laterally extending flange. An eighth finger cylinder is mounted on the flange. Two opening and closing eighth jaws are connected to the eighth finger cylinder. The eighth jaws grip the second assembly in the conveying area and transport it to the second assembly area by rotating the rotary arm 180°.

[0016] Compared with the prior art, the advantages of the present invention are that it provides a first assembly device for assembling the spring seat, return spring and locking pin into a first assembly, a second assembly device for assembling the first assembly and connecting ring into a second assembly, and a third assembly device for assembling the second assembly and foot pedal into a foot pedal assembly. A first assembly mechanism is connected between the first turntable and the turntable. The first assembly mechanism loads the first assembly on the first fixture into the connecting ring on the second fixture. A transfer mechanism is connected between the second assembly device and the third assembly device. The transfer mechanism is used to transfer the second assembly on the second fixture to the transport area for transport by the transport mechanism and assembly with the foot pedal. Through the cooperation of various mechanical devices, the automated assembly of the pedal assembly is realized, improving production efficiency and reducing labor costs. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the top plan of the equipment; Figure 2 This is a schematic diagram of the structure of the first assembly device; Figure 3 This is a partial structural diagram of the spring seat feeding mechanism; Figure 4 This is a partial structural diagram of the spring feeding mechanism; Figure 5 This is a partial structural diagram of the locking pin feeding mechanism; Figure 6 This is a schematic diagram of the structure of the first turntable; Figure 7 This is a schematic diagram of the structure of the second assembly device; Figure 8 This is a partial structural diagram of the connecting ring feeding mechanism; Figure 9 A structural schematic diagram of one assembly scheme for the first assembly mechanism; Figure 10 This is a schematic diagram of the soft pad block feeding mechanism; Figure 11 This is a schematic diagram of the transfer mechanism; Figure 12 A partial breakdown diagram of the transfer mechanism; Figure 13 This is a schematic diagram of the third assembly unit; Figure 14 A schematic diagram of the foot pedal feeding mechanism; Figure 15 This is a schematic diagram of the conveying mechanism; Figure 16 This is a schematic diagram of the punching mechanism; Figure 17 Schematic diagram of the second assembly mechanism, the first transport mechanism, and the second transport mechanism. Figure 1 ; Figure 18 Schematic diagram of the second assembly mechanism, the first transport mechanism, and the second transport mechanism. Figure 2 ; Figure 19 This is a schematic diagram of the first handling mechanism; Figure 20 This is a schematic diagram of the riveting mechanism; Figure 21 This is a schematic diagram of the push-button feeding mechanism; Figure 22 Exploded views of the various parts of the pedal assembly; Figure 23 Schematic diagram of the second scheme for assembling the first assembly mechanism Figure 1 ; Figure 24 Schematic diagram of the second scheme for assembling the first assembly mechanism Figure 2 .

[0019] In the diagram: 1. Frame; 2. First assembly device; 3. Second assembly device; 4. Third assembly device; 5. First turntable; 6. Spring seat feeding mechanism; 7. Spring feeding mechanism; 8. Locking pin feeding mechanism; 9. First assembly mechanism; 10. Second turntable; 11. Connecting ring feeding mechanism; 12. Soft pad feeding mechanism; 13. Transfer mechanism; 14. Foot pedal feeding mechanism; 15. Punching mechanism; 16. Conveying mechanism; 17. First handling mechanism; 18. Second handling mechanism; 19. First centering mechanism; 20. Second assembly mechanism; 21. Riveting mechanism; 22. Push button feeding mechanism; 23. First feeding seat; 24. First feeding channel; 25. Spring seat; 26. First vibrating feeding plate; 27. First feeding pipe; 8. Second vibrating feeder; 29. ​​Third vibrating feeder; 30. Second feeder seat; 31. First pushing cylinder; 32. First pushing component; 33. First guide groove; 34. First feeding channel; 35. First discharging channel; 36. First tilting drive cylinder; 37. Second lifting bracket; 38. First transverse groove; 39. First rotating shaft; 40. First arc groove; 41. First sliding part; 42. First rocker arm; 43. First slide block; 44. First finger cylinder; 45. First gripper; 46. Second lifting cylinder; 47. First stop part; 48. First lifting cylinder; 49. First lifting bracket; 50. Return spring; 51. First insertion port; 52. Second stop part; 53. Second tilting drive cylinder; 54. 55. Third lifting support; 56. Second feeding channel; 57. First clearance opening; 58. Third lifting cylinder; 59. Second finger cylinder; 60. Second gripper; 61. Second slide; 62. Second rocker arm; 63. Second sliding part; 64. Second arc groove; 65. Second rotating shaft; 66. Second transverse groove; 67. Mating part; 68. First reset spring; 69. Limiting pressure plate; 70. Bay; 71. First positioning groove; 72. First clamp; 73. Pulling part; 74. Pulling claw; 75. First pushing cylinder; 76. Fixed plate; 77. Second clamp; 78. Fourth feeding seat; 79. Third feeding seat; 80. Connecting ring; 81. Fourth vibrating feeding plate; 82. First PPU robotic arm; 83. 84. Third feeding assembly; 85. Third pushing assembly; 86. Fourth feeding channel; 87. Fifth vibrating feeding plate; 88. Second pushing cylinder; 89. First displacement bracket; 90. Second pushing component; 91. Fourth lifting cylinder; 92. Second clearance opening; 93. Second positioning groove; 94. Third finger cylinder; 95. Third gripper; 96. Insertion port; 97. Fifth gripper; 98. Fifth PPU manipulator; 99. Loading inlet; 100. Second PPU manipulator; 101. Fourth finger cylinder; 102. Fourth gripper; 103. Soft pad block; 104. Third pushing cylinder; 105. Third pushing component; 106. First pushing channel; 107. Third clearance opening; 108. Fourth pushing component;109. First central receiving area; 110. Second displacement support; 111. Second feeding channel; 112. Second assembly; 113. Third turntable; 114. Transfer shell; 115. First displacement actuator; 116. Fifth pusher; 117. Second discharge channel; 118. Ninth clearance opening; 119. Third push port; 120. Second central receiving area; 121. Material hopper; 122. Inlet and outlet; 123. Conveying track; 124. Lifting conveyor; 125. Conveyor belt; 126. Fifth lifting cylinder; 127. Sixth pusher; 128. Fourth pusher cylinder; 129. Lifting receiving plate; 130. Twentieth displacement actuator; 131. Active rotary gripper; 132. Upper channel; 133. 134. Material drop port; 135. Lower channel; 136. Driven rotary clamp; 137. Second displacement actuator; 138. Third displacement actuator; 139. First lifting actuator; 140. Fifth displacement bracket; 141. Feeding bracket; 142. Lifting component; 143. Support groove; 144. Foot pedal station; 145. Foot pedal; 146. Sixth displacement actuator; 147. First right push plate; 148. Second positioning block; 149. Second right push plate; 150. Ninth displacement actuator; 151. Second punching component; 152. Eleventh displacement actuator; 153. Second drive block; 154. Third return spring; 155. First clearance channel; 156. Second clearance channel; 157. Second return spring; 157. Second left push plate; 158. Tenth displacement actuator; 159. First drive block; 160. Eighth displacement actuator; 161. First punch; 162. Punch; 163. Seventh displacement actuator; 164. First left push plate; 165. First positioning block; 166. Left end assembly assembly; 167. Twenty-first displacement actuator; 168. First movable pusher; 169. First fixed abutment; 170. Right end assembly assembly; 171. Eighth gripper; 172. Second left pusher; 173. Eighteenth displacement actuator; 174. Transfer area; 175. Rotating arm; 176. Folding edge; 177. Second receiving groove; 178. Second receiving seat; 179. Seventh lifting actuator; 180. Eight clearance openings; 181. Second moving plate; 182. Nineteenth displacement actuator; 183. Second pushing part; 184. Eighth finger cylinder; 185. Rotary lifting actuator; 186. Sixteenth displacement actuator; 187. First right pushing component; 188. Sixth lifting actuator; 189. First receiving seat; 190. First pushing part; 191. First moving plate; 192. Seventeenth displacement actuator; 193. Seventh gripper; 194. Fourth PPU robot arm; 195. Seventh finger cylinder; 196. Seventh clearance opening; 197. First fixed seat; 198. First fixed groove; 199. First receiving groove; 200. Third lifting actuator; 201. Fifth lifting actuator; 202. Second riveting head;203. Right support seat; 204. Second abutment part; 205. Fifteenth displacement actuator; 206. Second limit block; 207. Second pressure block; 208. Second limit slot; 209. Fourth lifting actuator; 210. Twelfth displacement actuator; 211. Third right push plate; 212. Second lifting actuator; 213. First pressure block; 214. First limit slot; 215. First limit block; 216. Thirteenth displacement actuator; 217. First abutment part; 18. Left support base; 219. Fourteenth displacement actuator; 220. Third left push plate; 221. First riveting head; 222. Sixth vibrating feed plate; 223. Sixth feeding channel; 224. Fourth displacement actuator; 225. Fourth displacement bracket; 226. Fifth displacement actuator; 227. First rotary actuator; 228. First rotary bracket; 229. Second fixed abutment; 230. Second movable pushing component; 231. Twenty-second displacement actuator; 232. 233. Sixth finger cylinder; 234. Sixth gripper; 235. Fifth loading seat; 236. Fourth positioning groove; 237. Seventh pusher; 238. Fifth pusher cylinder; 239. Second pusher channel; 240. Fourth clearance opening; 241. Insert plate; 242. Neck; 243. Limit ring; 244. Locking pin; 245. Insertion pin; 246. Annular part; 247. Insertion part; 248. Drive rod; 249. Elastic clamp; 250. Switch button; 250. Twenty-third displacement 251. Driver; 252. Third displacement bracket; 253. Second rotary bracket; 254. Second rotary driver; 255. Twenty-fourth displacement driver; 256. Eighth lifting driver; 257. Fourth lifting bracket; 258. Twenty-fifth displacement driver; 259. Pressing component; 260. Twenty-sixth displacement driver; 261. Ejector component; 262. Ninth gripper; 263. Ninth finger cylinder; 264. First assembly; 265. Operating area; 266. Ejector gripper. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of the invention.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0022] Figures 1-24 As shown, the automated assembly equipment for the telescopic ladder tread assembly includes a frame 1, a first assembly device 2, a second assembly device 3, and a third assembly device 4, which are mounted on the frame 1.

[0023] Figures 2-6 As shown, the first assembly device 2 is used to assemble the spring seat 25, the return spring 50, and the locking pin 243 into a first assembly 263. The first assembly device 2 includes an intermittently rotating first turntable 5, a spring seat feeding mechanism 6, a spring feeding mechanism 7, and a locking pin feeding mechanism 8. The spring seat feeding mechanism 6, the spring feeding mechanism 7, and the locking pin feeding mechanism 8 are arranged sequentially along the outer periphery of the first turntable 5. The first turntable 5 is provided with a plurality of circumferentially spaced first clamps 71. The first clamps 71 are provided with a first positioning groove 70 for the lateral insertion of the spring seat 25 and a limiting pressure plate 68 that can slide relative to the first clamps 71 along the radial direction of the first turntable 5 and press the locking pin 243. A first return tension spring 67 is provided between the limiting pressure plate 68 and the first clamps 71. The first turntable 5 or the frame 1 is provided with a first driving mechanism for driving the limiting pressure plate 68 to move. The intermittent rotation of the first turntable 5 causes the first clamps 71 to rotate sequentially to a position opposite to the spring seat feeding mechanism 6, the spring feeding mechanism 7, and the locking pin feeding mechanism 8.

[0024] The first turntable 5 is a conventional divider turntable, such as the publicly available cam divider from the brand KONBORLAN, which is driven by a drive structure to rotate the first turntable 5 intermittently in one direction.

[0025] Figure 3 As shown, the spring seat feeding mechanism 6 is used to feed the spring seat 25 into the first positioning groove 70. The spring seat feeding mechanism 6 includes a first vibrating feeding plate 26, a first feeding channel 24, and a first pushing assembly. The input end of the first feeding channel 24 is connected to the first vibrating feeding plate 26, and the output end of the first feeding channel 24 is provided with a first feeding seat 23. The first feeding seat 23 is provided with a first feeding channel 34 and a first discharging channel 35 that are connected. Both sides of the first feeding channel 34 and the first discharging channel 35 are provided with first guide grooves 33 for guiding and cooperating with the insert plate 240 of the spring seat 25. The first guide grooves 33 cooperate with the insert plate 240 of the spring seat 25 to restrict the spring seat 25 to move within the first feeding channel 34 and the first discharging channel 35. A feeding channel 34 has its input end connected to the output end of a first feeding channel 24. A first discharge channel 35 is located at the output end of the first feeding channel 34 and has a first discharge port opposite to the first clamp 71 and a first push port opposite to the first push assembly. The first push assembly includes a first pusher 32 and a first push cylinder 31 that drives the first pusher 32 to move. The spring seat 25 is vertically conveyed to the first feeding channel 34 by the first vibrating feeding plate 26, and then enters the first discharge channel 35 from the first feeding channel 34. The first pusher 32 moves to push the spring seat 25 in the first discharge channel 35 forward into the corresponding first positioning groove 70. The structure of the first positioning groove 70 is the same as the groove on the insertion part 246 of the connecting ring 80 for installing the spring seat 25.

[0026] The first vibrating feed plate 26 is an existing conventional vibrating feed structure, such as the vibrating feeder of the brand Shunke and model SK320. In order to make the feeding smoother, the first feeding channel 24 can be set on the direct vibrating feeder.

[0027] Figure 4 As shown, the spring feeding mechanism 7 is used to feed the return spring 50 to the first clamp 71 and install the return spring 50 into the spring seat 25. The spring feeding mechanism 7 includes a second vibrating feeding plate 28, a first feeding pipe 27, a first baffle assembly, and a first loading assembly. The second vibrating feeding plate 28 is used to feed the return spring 50 to the first feeding pipe 27. The first baffle assembly includes a first lifting bracket 49 and a first lifting cylinder 48 that drives the first lifting bracket 49 to rise and fall. The first lifting bracket 49 is provided with a first baffle part 47 and a second baffle part 52. The second baffle part 52 is a baffle pin. The first feeding pipe 27 is provided with a first insertion port 51 opposite to the second baffle part 52. The second vibrating feeding plate 28 is a conventional vibrating feeding structure, such as the vibrating feeder of the brand Shunke, model SK320. To make the feeding smoother, a direct vibrating feeder with a feeding channel can be set between the first feeding pipe 27 and the second vibrating feeding plate 28.

[0028] The first loading assembly includes a second lifting bracket 37, a second lifting cylinder 46 for driving the second lifting bracket 37 to rise and fall, a first tilting drive cylinder 36, a first slide block 43, and a first finger cylinder 44. The first tilting drive cylinder 36 and the first slide block 43 are mounted on the second lifting bracket 37. The first slide block 43 can slide horizontally relative to the second lifting bracket 37. The movement of the first slide block 43 is driven by the first tilting drive cylinder 36. A first rotating shaft 39 is provided on the first slide block 43. One end of the first rotating shaft 39 is connected to the first finger cylinder 44. The first finger cylinder 44 is connected to... There are two first grippers 45, and the opening and closing of the first grippers 45 is driven by the first finger cylinder 44. The other end of the first rotating shaft 39 is connected to the first rocker arm 42. The other end of the first rocker arm 42 is provided with a first sliding part 41, which is a bearing. The second lifting bracket 37 is provided with a first sliding groove on one side of the first sliding seat 43. The first sliding groove includes a first horizontal groove 38 and a first arc groove 40. The first arc groove 40 is a quarter arc that curves upward. One end of the first arc groove 40 is connected to one end of the first horizontal groove 38. The first sliding part 41 slides in cooperation with the first sliding groove.

[0029] In the initial state, the first lifting bracket 49 rises to the high position, the first stop 47 blocks the outlet of the first feeding pipe 27 and leaves a gap between it and the outlet for the return spring 50 to extend partially, the second stop 52 is outside the first feeding pipe 27, the front end of the first return spring 50 extends out of the first feeding pipe 27 and abuts against the first stop 47, the first sliding part 41 is in the first transverse groove 38, the first rocker arm 42 is in a horizontal position, and the first finger cylinder 44 connected to the first gripper 45 is downward and opposite to the outlet of the first feeding pipe 27 below; on the spring seat After the feeding mechanism 6 feeds the spring seat 25 into the first positioning groove 70, the first turntable 5 rotates once, rotating the first clamp 71 containing the spring seat 25 to a position opposite to the spring feeding mechanism 7. The second lifting bracket 37 drives the first gripper 45 to move down and clamp the protruding part of the reset spring 50. At the same time, the first lifting bracket 49 drives the first stop part 47 and the second stop part 52 to descend. The first stop part 47 moves away from the front of the outlet of the first feeding pipe 27, so as not to obstruct the movement of the reset spring 50. The second stop part 52 is inserted into the first feeding pipe 27 through the first insertion port 51 and blocks the front. Behind the first return spring 50, the first flip drive cylinder 36 pushes the first slide block 43 forward. The first slide block 43 drives the first finger cylinder 44 and the first gripper 45 forward to pull the clamped return spring 50 out of the first feed tube 27. During this process, the first sliding part 41 slides forward along the first transverse groove 38. After the return spring 50 is pulled out, the second lifting bracket 37 drives the first finger cylinder 44 and the first gripper 45 to rise. At the same time, as the first slide block 43 moves forward, the first sliding part 41 enters the first arc groove 40 and slides upward along the first arc groove 40, causing the first rocker arm 4 to... 2. The first rocker arm 42 swings upward and drives the first rotating shaft 39 and the first finger cylinder 44 to rotate synchronously. When the first sliding part 41 slides to the upper end of the first arc groove 40, the first rocker arm 42 swings to a vertical state and drives the first finger cylinder 44 to swing to a horizontal state through the first rotating shaft 39, so that the first gripper 45 is horizontally forward and opposite to the first clamp 71. At this time, the reset spring 50 gripped by the first gripper 45 is in a vertical state and located above the spring seat 25. The second lifting bracket 37 descends so that the first gripper 45 moves downward and puts the reset spring 50 into the lower spring seat 25. Then the first finger cylinder 44 moves to reset. After the aforementioned foremost return spring 50 is removed, the first lifting bracket 49 drives the first stop part 47 and the second stop part 52 to rise, so that the first stop part 47 blocks the outlet of the first feeding pipe 27 again, and the second stop part 52 moves out of the first feeding pipe 27, releasing the obstruction to the rear-mounted return spring 50. The rear-mounted return spring 50 can then be conveyed forward to a position that abuts against the first stop part 47, preparing for the next material removal.

[0030] Figure 5As shown, the locking pin feeding mechanism 8 is used to feed locking pins 243 to the first clamp 71 and mount the locking pins 243 on the spring seat 25. The locking pin feeding mechanism 8 includes a third vibrating feeding plate 29, a second feeding seat 30, and a second loading assembly. The second feeding seat 30 is provided with a second feeding channel 55, and first clearance openings 56 are provided on both sides of the second feeding channel 55. The first clearance openings 56 are used for the second loading assembly to clamp the locking pins 243 inside the second feeding channel 55. The third vibrating feeding plate 29 is used to feed locking pins 243 into the second feeding channel 55. The second loading assembly includes a third lifting bracket 54, a third lifting cylinder 57 for driving the third lifting bracket 54 to lift, a second tilting drive cylinder 53, a second slide 60, and a second finger cylinder 58. The second tilting drive cylinder 53 and the second slide 60 are mounted on the third lifting bracket 54. The second slide 60 is slidably connected to the third lifting bracket 54. The second slide 60 can be driven by the third lifting bracket 54. The second tilting drive cylinder 53 pushes the relative third lifting bracket 54 to slide horizontally. The second slide block 60 is provided with a second rotating shaft 64. One end of the second rotating shaft 64 is connected to a second finger cylinder 58. The second finger cylinder 58 is connected to two second grippers 59. The second grippers 59 are driven by the second finger cylinder 58 to open and close and hold. The other end of the second rotating shaft 64 is connected to a second rocker arm 61. The other end of the second rocker arm 61 is provided with a second sliding part 62, which is a bearing. The third lifting bracket 54 is provided with a second sliding groove on one side of the second slide block 60. The second sliding groove includes a second horizontal groove 65 and a second arc groove 63. The second arc groove 63 is a quarter arc that curves upward. One end of the second arc groove 63 is connected to one end of the second horizontal groove 65. The second sliding part 62 slides in cooperation with the second sliding groove. The third vibrating feed plate 29 is an existing conventional vibrating feed structure, such as the vibrating feeder of brand Shunke and model SK320. In order to make the feeding smoother, a direct vibrating feeder with a feeding channel can be set between the second feed seat 30 and the third vibrating feed plate 29.

[0031] Figure 6 As shown, the center of the first turntable 5 is provided with a fixed plate 75 that is fixed relative to the frame 1. The first drive mechanism is provided on the fixed plate 75. The first drive mechanism includes a pull claw 73 and a first push cylinder 74 that drives the pull claw 73 to move. The pull claw 73 has two pulling parts 72 that are opposite each other. There is a gap between the pulling parts 72 for the limit plate 68 to pass through. The limit plate 68 is provided with a mating part 66 that cooperates with the pull claw 73.

[0032] In the initial state, the second sliding part 62 is in the second transverse groove 65, the second rocker arm 61 is horizontally positioned, and the second finger cylinder 58 connected to the second gripper 59 is facing downwards and opposite to the lower second loading seat 30. After the spring loading mechanism 7 loads the spring into the spring seat 25, the first turntable 5 rotates once, rotating the first clamp 71, which contains the reset spring 50 and the spring seat 25, to a position opposite to the locking pin loading mechanism 8. At this time, the mating part 66 on the limiting pressure plate 68 enters the pull claw 73, and the pull claw... 73. The pulling part 72 pulls the mating part 66, causing the limiting pressure plate 68 to move away from above the spring seat 25. The third lifting bracket 54 drives the second gripper 59 to move up and down, causing the second gripper 59 to clamp the neck 241 of the locking pin 243 and lift it upward. Then, the second flipping drive cylinder 53 pushes the second slide block 60 forward, causing the second sliding part 62 to slide a certain distance along the second transverse groove 65 and enter the second arc groove 63, and slide upward along the second arc groove 63 to the upper end. The second rocker arm 61 is moved by the first The second sliding part 62 drives the upward swing to a vertical position. The second rocker arm 61 drives the second rotating shaft 64 and the second finger cylinder 58 to rotate synchronously, causing the second finger cylinder 58 to swing to a horizontal position. At this time, the second gripper 59 is horizontally forward and opposite the second clamp 76, and the locking pin 243 gripped by the second gripper 59 is in a vertical position and above the spring seat 25. The third lifting bracket 54 descends, causing the second gripper 59 to move downward and insert the locking pin 243 into the lower spring seat 25. Then the pull claw 73 moves to reset, so that the limit pressure... Plate 68 moves back above spring seat 25. A slot 69 is provided on the limiting pressure plate 68. The slot 69 is engaged with the locking pin 243 and pressed against the limiting ring 242 of the locking pin 243, preventing the locking pin 243 from being pushed upward out of spring seat 25 by the return spring 50. At this time, the locking pin 243, the return spring 50 and the spring seat 25 are combined to form the first assembly 263. After the assembly is completed, the second finger cylinder 58 moves to reset, and the first turntable 5 rotates once to transport the assembled first assembly 263 to the next area.

[0033] Figures 7-10As shown, the second assembly device 3 is used to assemble the first assembly 263 and the connecting ring 80 into the second assembly 112. The second assembly device 3 includes an intermittently rotating second turntable 10, a connecting ring feeding mechanism 11 disposed around the second turntable 10, and a first assembly mechanism 9. The second turntable 10 is provided with a plurality of circumferentially spaced second clamps 76. The second clamps 76 are provided with second positioning grooves 92 for the transverse insertion of the insertion portion 246 of the connecting ring 80. The top of the second clamps 76 is provided with an inlet 99 for fittings to be inserted into the insertion portion 246 of the connecting ring 80. The second turntable 10 is a conventional divider turntable, such as the publicly disclosed cam divider of the brand KONBORLAN, which drives the first turntable 5 to rotate intermittently in one direction through a drive structure. The second positioning groove 92 is a slot extending radially along the second turntable 10, which penetrates the second clamps 76.

[0034] Figure 8 As shown, the connecting ring feeding mechanism 11 is used to feed the connecting ring 80 into the second positioning groove 92. The connecting ring feeding mechanism 11 includes a fourth vibrating feeding plate 81, a third feeding channel 79, a third feeding seat 78, a second pushing assembly, and a first transferring assembly. The third feeding channel 79 is connected to the output end of the fourth vibrating feeding plate 81. The third feeding seat 78 is located on one side of the third feeding channel 79. The bottom of the third feeding seat 78 is provided with a second clearance opening 91 that runs vertically through the bottom. The first transferring assembly includes a first PPU manipulator 82 and a third finger cylinder 93. The third finger cylinder 93 is connected to the first PPU manipulator 82 and can be driven by the first PPU manipulator 82 to move vertically and horizontally. Two third grippers 94 are connected to the third finger cylinder 93. 4. The opening and closing clamping is driven by the third finger cylinder 93. The second pushing component includes a second pushing cylinder 87, a first displacement bracket 88, a fourth lifting cylinder 90, and a second pushing component 89. The first displacement bracket 88 is connected to the second pushing cylinder 87 and can be driven to move by the second pushing cylinder 87. The fourth lifting cylinder 90 is set on the first displacement bracket 88. The second pushing component 89 is located below the third loading seat 78. The second pushing component 89 is connected to the fourth lifting cylinder 90 and can be driven to rise and fall by the fourth lifting cylinder 90. The second pushing component 89 can push material upward through the second clearance opening 91. The second clearance opening 91 extends to one side of the second turntable 10 and penetrates the side of the third loading seat 78.

[0035] The fourth vibrating feeder 81 is a conventional vibrating feeder structure, such as the vibrating feeder of brand Shunke and model SK320. To make the feeding smoother, the third feeding channel 79 can be set on the direct vibrating feeder.

[0036] When the second turntable 10 rotates to the position where the second clamp 76 is opposite to the connecting ring feeding mechanism 11, the first PPU robot arm 82 first drives the third finger cylinder 93 to move laterally to the top of the third feeding channel 79, and then drives the third finger cylinder 93 to move down to clamp the connecting ring 80. Then it drives the third finger cylinder 93 to move laterally to the third feeding seat 78, and then drives the third finger cylinder 93 to move down to place the clamped connecting ring 80 on the third feeding seat 78. Then the fourth lifting cylinder 90 drives the second pusher 89 to rise and pass through the second clearance opening 91 into the annular part 245 of the connecting ring 80. Then the first displacement bracket 88 drives the second pusher 89 to move forward, so that the second pusher 89 pushes the connecting ring 80 forward into the second positioning groove 92. After the pusher is completed, the second pusher 89 moves back to its original position, the second turntable 10 rotates once, and the second clamp 76 containing the connecting ring 80 is transported to the next area.

[0037] The first PPU robotic arm 82 uses a conventional drive structure, which can be referenced in patents CN224061788U, CN223544283U, CN223396467U and CN221250262U.

[0038] Figure 9 As shown, the first assembly mechanism 9 is located between the first turntable 5 and the second turntable 10. The first assembly mechanism 9 is used to insert the first assembly 263 assembled on the first clamp 71 into the insertion part 246 of the connecting ring 80. The first assembly mechanism 9 is located downstream of the locking pin feeding mechanism 8 along the conveying direction of the first turntable 5, and downstream of the connecting ring feeding mechanism 11 along the conveying direction of the second turntable 10. The first turntable 5 can drive the first clamp 71 to rotate to the periphery of the first assembly mechanism 9, and the second turntable 10 can drive the second clamp 76 to rotate to the periphery of the first assembly mechanism 9.

[0039] Preferably, the first turntable 5 is provided with four first clamps 71. When the first turntable 5 stops rotating, the four first clamps 71 correspond to the spring seat feeding mechanism 6, the spring feeding mechanism 7, the locking pin feeding mechanism 8 and the first assembly mechanism 9, respectively.

[0040] The first assembly mechanism 9 has two different loading schemes. One scheme involves vertically inserting the first assembly 263 into the insertion part 246 of the connecting ring 80 on the second clamp 76. The other scheme involves tilting the first assembly 263, inserting one end of the tilted first assembly 263 into the insertion part 246 of the connecting ring 80 first, and then pressing the other end in. This scheme is often used when there are obstacles blocking the groove on the insertion part 246 for loading the first assembly 263.

[0041] The first embodiment: The first assembly mechanism 9 includes a drive component and a fifth finger cylinder 97. The drive component is a third PPU manipulator 98. The fifth finger cylinder 97 is connected to the third PPU manipulator 98 and can be driven by the third PPU manipulator 98 to move and rotate 90°, allowing the fifth finger cylinder 97 to switch between a vertically downward state and a horizontally forward state. Two fifth grippers 96 are connected to the fifth finger cylinder 97, and the fifth grippers 96 can be driven by the fifth finger cylinder 97 to open and close. The upper fifth gripper 96 has a socket 95 for inserting the neck 241 of the locking pin 243.

[0042] The third PPU manipulator 98 first drives the fifth finger cylinder 97 to rotate to a horizontal forward position, aligning the fifth finger cylinder 97 with the first gripper 71. Then, it drives the fifth finger cylinder 97 forward, causing the upper fifth gripper 96 to insert into the neck 241 of the locking pin 243 through the insertion port 95. The lower fifth gripper 96 moves to the bottom of the spring seat 25, and the two grippers 96 press against the edge of the neck 241 of the locking pin 243 and the bottom of the spring seat 25. Finally, the manipulator drives the fifth finger cylinder 97 backward, completing the assembly. The first assembly 263 is completely removed from the first clamp 71, and then the fifth finger cylinder 97 is driven to flip to a vertically downward position so that the fifth finger cylinder 97 is opposite to the second clamp 76 below. Then the fifth finger cylinder 97 is driven to move downward to insert the gripped first assembly 263 from the loading port 99 of the second clamp 76 into the insertion part 246 of the connecting ring 80. The first assembly 263 and the connecting ring 80 are combined to form the second assembly 112. After the assembly is completed, the third PPU robot 98 drives the fifth finger cylinder 97 to move back to its original position.

[0043] The third PPU robotic arm 98 uses a conventional drive structure, and the robotic arm in patent CN219926047U can be referenced.

[0044] Figure 23 , Figure 24As shown, in the second embodiment, the first assembly mechanism 9 includes a gripper assembly, an ejector assembly, and a pressing assembly. The gripper assembly includes a third displacement bracket 251, a twenty-third displacement driver 250 that drives the third displacement bracket 251, a second rotary driver 253, a second rotary bracket 252, a twenty-fourth displacement driver 254, and a ninth finger cylinder 262. The second rotary driver 253 is mounted on the third displacement bracket 251, and the second rotary bracket 252 is connected to and can be driven to rotate by the second rotary driver 253. The twenty-fourth displacement driver 254 is mounted on the second rotary bracket 252, and the ninth finger cylinder 262 is connected to the twenty-fourth displacement driver 254. The cylinder 262 is driven to move back and forth by the 24th displacement actuator 254. Two gripping jaws 261 are connected to the 9th finger cylinder 262. The second rotating bracket 252 can rotate the 9th finger cylinder 262, allowing it to switch between a horizontal forward position and a downward angled position. The gripping jaws 261 on the 9th finger cylinder 262 can grip the first assembly 263 assembled on the first clamp 71 and insert one end of it into the insertion portion 246 of the connecting ring 80 in an inclined state. The ejector assembly is used to hold the other end of the inserted first assembly 263 that is raised, and the pressing assembly is used to press the other end of the first assembly 263 that is raised into the insertion portion 246 of the connecting ring 80. The upper gripping jaw of the two 9th jaws 261 has a socket 95 for inserting the neck 241 of the locking pin 243.

[0045] The press assembly includes a press component 258, a 25th displacement driver 257 that drives the press component 258 to move back and forth, a fourth lifting bracket 256 and an eighth lifting driver 255. The 25th displacement driver 257 is mounted on the fourth lifting bracket 256, and the fourth lifting bracket 256 is connected to the eighth lifting driver 255 and can be driven to move up and down by the eighth lifting driver 255.

[0046] The feeding assembly includes a feeding component 260 and a 26th displacement driver 259 that drives the feeding component 260 to move back and forth. The feeding component 260 includes two feeding claws 265 that are spaced apart and L-shaped, and an operating area 264 is formed between the two feeding claws 265.

[0047] The 23rd displacement driver 250, the 24th displacement driver 254, the 25th displacement driver 257, the 8th lifting driver 255, and the 26th displacement driver 259 are all conventional linear drivers in the art, such as motor lead screw modules, electric push rods, cylinders, etc. The second rotary driver 253 is a conventional rotary drive structure in the art, such as a servo motor, a divider turntable, etc.

[0048] During loading, the second rotating bracket 252 first drives the ninth finger cylinder 262 to rotate to a horizontal forward position, so that the ninth finger cylinder 262 is opposite to the first clamp 71. Then, the ninth finger cylinder 262 is driven forward by the twenty-fourth displacement driver 254. The upper ninth gripper 261 is inserted into the neck 241 of the locking pin 243 through the insertion port 95, and the lower ninth gripper 261 moves to the bottom of the spring seat 25. The upper and lower ninth grippers 261 clamp each other and press against the edge of the neck 241 of the locking pin 243 and the spring seat 25. The cylinder 262, driven by the twenty-fourth displacement actuator 254, moves backward to return to its original position, completely removing the assembled first assembly 263 from the first clamp 71. The second rotating bracket 252 then rotates the ninth finger cylinder 262 to a downward-sloping position, causing the clamped first assembly 263 to also tilt. At this point, the ninth finger cylinder 262 is aligned with the second clamp 76 below. Driven by the twenty-fourth displacement actuator 254, the ninth finger cylinder 262 moves downward, causing one end of the clamped first assembly 263 to first enter the groove of the insertion part 246. The other end is raised, with the insertion end being the end of the locking pin 243 away from the spring seat 25, and the raised end being the end with the spring seat 25. The third displacement bracket 251 drives the ninth finger cylinder 262 and the clamped first assembly 263 to move laterally, so that the insertion end enters below the obstacle. At this time, the twenty-sixth displacement driver 259 drives the ejector 260 to move forward, so that the two ejector claws 265 abut against the raised spring seat 25 at the rear end, preventing the spring seat 25 from being ejected by the return spring 50 between the spring seat 25 and the locking pin 243. At this time, the operating area 264 clamps the spring seat 25. The ninth gripper 261 forms a clearance. After the top material 260 presses against the spring seat 25, the ninth finger cylinder 262 moves back to its initial position. The twenty-fifth displacement driver 257 drives the pressing part 258 to move into the operating area 264. At this time, the pressing part 258 is located above the spring seat 25. The fourth lifting bracket 256 then drives the pressing part 258 to move down, pressing the raised spring seat 25 into the groove of the insertion part 246, completing the overall assembly of the first assembly 263. After the assembly is completed, both the pressing part 258 and the top material 260 return to their initial positions.

[0049] In the second scheme, during assembly, a stop part can be provided on the side of the connecting ring 80 away from the insertion part 246. The stop part is fixed on the frame 1 and is opposite to the second clamp 76. The stop part serves as the stop part of one end of the connecting ring 80 when the first assembly mechanism 9 installs the first assembly 263, preventing the connecting ring 80 from being pushed out of the second positioning groove 92 when the first assembly mechanism 9 inserts the first assembly 263 into the connecting ring 80.

[0050] By providing a sliding limiting pressure plate 68 for holding the locking pin 243, it is convenient to insert the locking pin 243, and also convenient for the first assembly mechanism 9 to clamp out the complete first assembly 263 together and insert it into the insertion part 246 of the connecting ring 80.

[0051] The second turntable 10 is provided with a soft pad block feeding mechanism 12 around its periphery. The soft pad block feeding mechanism 12 is used to feed soft pad blocks 103 to the second clamp 76 and to mount the soft pad blocks 103 onto the second assembly 112. The soft pad block feeding mechanism 12 is located downstream of the first assembly mechanism 9 along the conveying direction of the second turntable 10.

[0052] Figure 10 As shown, the soft pad feeding mechanism 12 includes a fifth vibrating feeding plate 86, a fourth feeding channel 85, a third pushing assembly 84, and a third loading assembly 83. The input end of the fourth feeding channel 85 is connected to the output end of the fifth vibrating feeding plate 86. The output end of the fourth feeding channel 85 is provided with a fourth feeding seat 77. The fourth feeding seat 77 is provided with a first pushing channel 106 that runs vertically through the upper and lower parts. The first pushing channel 106 has a second discharge port at the upper end and a second pushing port at the lower end opposite to the third pushing assembly 84. The lower end of the first pushing channel 106 is connected to the output end of the fourth feeding channel 85. The upper ends of the first pushing channel 106 are provided with third clearance openings 107 on both sides. The third clearance openings 107 are used for the third loading assembly 83 to clamp the material. The third pushing assembly 84 includes a third pushing cylinder 1. 04 and the third pusher 105, the third pusher 105 is connected to the third pusher cylinder 104 and can be driven by the third pusher cylinder 104 to move up and down. The third pusher 105 is provided with two third positioning grooves corresponding to the two pins 244 of the soft pad block 103. The third loading assembly 83 includes a second PPU manipulator 100 and a fourth finger cylinder 101. The fourth finger cylinder 101 is connected to the second PPU manipulator 100 and can be driven by the second PPU manipulator 100 to move up and down and translate. Two fourth grippers 102 are connected to the fourth finger cylinder 101. The two fourth grippers 102 can be driven by the fourth finger cylinder 101 to open and close and hold. The fourth grippers 102 can pick up the soft pad block 103 pushed upward from the second discharge port and load it onto the second assembly 112.

[0053] The fifth vibrating feeder 86 is a conventional vibrating feeder structure, such as the Shunke SK320 vibrating feeder. To make feeding smoother, the fourth feeder channel 85 can be set on the direct vibrating feeder. The first PPU robot arm 82 is a conventional drive structure, which can be referenced in patents CN224061788U, CN223544283U, CN223396467U, and CN221250262U.

[0054] Initially, the third pusher 105 is inserted upwards into the lower end of the first pusher channel 106, blocking the opening at the lower end of the first pusher channel 106. The fifth vibrating feeder 86 conveys the soft pad 103 into the first pusher channel 106 through the fourth feeder channel 85, causing the two pins 244 of the soft pad 103 to enter the two third positioning grooves on the third pusher 105 to form a position. The third pusher 105 moves upwards to push the soft pad 103 to the second discharge port above the first pusher channel 106. The second turntable 10 rotates the second clamp 76 to engage with the soft pad. When the material handling mechanism 12 is in the correct position, the second PPU robot 100 drives the fourth finger cylinder 101 to move horizontally above the fourth loading seat 77, and then drives the fourth finger cylinder 101 to move downward to clamp the soft pad 103 at the second discharge port upward. Then, the second PPU robot 100 drives the fourth finger cylinder 101 to move horizontally above the second clamp 76, and then drives the fourth finger cylinder 101 to move downward to install the clamped soft pad 103 onto the second assembly 112. After installation, the second turntable 10 rotates once to transport the second assembly 112 to the next area. After the soft pad 103 is clamped away, the third pusher 105 moves downward to allow the soft pad 103 to be fed into the first pusher channel 106. The third pusher 105 then moves upward again to push the soft pad 103 to the second discharge port above the first pusher channel 106 to prepare for the next material handling.

[0055] Figures 13-21As shown, the third assembly device 4 is used to assemble the second assembly 112 and the foot pedal 144 into a foot pedal assembly. It includes a foot pedal feeding mechanism 14, a conveying mechanism 16, a second assembly mechanism 20, a first handling mechanism 17, and a second handling mechanism 18. The conveying mechanism 16 includes a conveying track 123 extending along the X-axis and a first feeding component. The conveying track 123 has multiple foot pedal stations 143 spaced apart along the X-axis. The foot pedal feeding mechanism 14 is used to convey the foot pedal 144 to the input end of the conveying track 123. The first feeding component is used to convey the foot pedal 144 from the input end to each level of the foot pedal station 143. One side of the conveying track 123 has a handling area 174 for the first handling mechanism 17 and the second handling mechanism 18 to pick up materials. The handling area 174 is connected to the second turntable 10. A transfer mechanism 13 is provided to transfer the second assembly 112 on the second fixture 76 to the transport area 174. The two sides of the conveying track 123 are respectively provided with a first assembly area and a second assembly area corresponding to the foot pedal station 143. The first transport mechanism 17 is used to transport the second assembly 112 in the transport area 174 to the first assembly area on the same side. The second transport mechanism 18 is used to transport the second assembly 112 in the transport area 174 to the second assembly area on the other side. During this process, the second assembly 112 is rotated 180° around the vertical axis to adjust the insertion part 246 of the connecting ring 80 to be opposite to the foot pedal station 143. The second assembly mechanism 20 is used to assemble the second assembly 112 in the first assembly area and the second assembly area with the foot pedal 144 on the corresponding foot pedal station 143 by insertion.

[0056] By setting up the first conveying mechanism 17 and the second conveying mechanism 18, the transfer mechanism 13 for feeding only needs to be set on one side of the conveying track 123, instead of both sides of the conveying track 123, thus reducing the overall size of the automated assembly equipment.

[0057] Figure 14As shown, the foot pedal feeding mechanism 14 includes a lifting conveyor 124, a conveyor belt 125, a fifth pushing assembly, and a fifth feeding channel. The conveyor belt 125 is located on one side of the discharge port of the lifting conveyor 124. The fifth feeding channel and the fifth pushing assembly are located opposite each other on both sides of the end of the conveyor belt 125. The fifth pushing assembly includes a sixth pushing component 127 and a fourth pushing cylinder 128 that drives the sixth pushing component 127 to move linearly back and forth. The fifth feeding channel includes an upper channel 13 distributed vertically. 2. The upper channel 132 has an input end that receives the foot pedal 144 pushed by the fifth pushing component. The output end of the upper channel 132 has a discharge port 133, which is opposite to the lower channel 134 below. The distance between the discharge port 133 and the lower channel 134 is only enough to accommodate one foot pedal 144. The lower channel 134 is located at the input end of the conveying track 123. The lifting conveyor 124 lifts the foot pedals 144 one by one from the discharge port to the conveying track 123. The material is fed onto the conveyor belt 125 and then transported forward to the end of the conveyor belt 125. A sensor can be installed at the end of the conveyor belt 125. When the sensor detects the foot pedal 144, it controls the conveyor belt 125 and the lifting conveyor 124 to stop conveying. When the sensor does not detect the foot pedal 144, it controls the conveyor belt 125 and the lifting conveyor 124 to continue feeding. The sixth pusher 127 pushes the foot pedal 144, which has been transported to the end of the conveyor belt 125, along the X-axis towards the fifth feeding channel. In other words, the conveyor belt 125 delivers the foot pedal 144 to the end once, and the sixth pusher 127 pushes the material once. Subsequent pushes of the foot pedal 144 by the sixth pusher 127 will push the previously pushed foot pedal 144 forward along the upper channel 132 until the foot pedal 144 moves to the drop port 133. The foot pedal 144 falls from the drop port 133 into the lower channel 134 below, and then the first feeding assembly conveys the input foot pedal 144 forward to the first-stage foot pedal station 143. The sixth pusher 127 can be a long plate. During the pushing process between the sixth pusher 127 and the foot pedal 144, the foot pedal 144 will gradually come into contact with the sixth pusher 127, which can play a corrective role.

[0058] The lifting conveyor 124 is a conventional feeding device in this field, such as the inclined conveyor of the brand Chiyuan, model HK256.

[0059] A forward / reverse detection area is provided between the upper channel 132 and the end of the conveyor belt 125. The forward / reverse detection area includes a first lifting receiving assembly, a forward / reverse detector, and a flipping clamping assembly. The first lifting receiving assembly includes a lifting receiving plate 129 and a fifth lifting cylinder 126. The lifting receiving plate 129 is connected to and can be driven to lift by the fifth lifting cylinder 126. The two sides of the lifting receiving plate 129 are respectively connected to the input end of the upper channel 132 and the end of the conveyor belt 125. A foot pedal pushed out from the conveyor belt 125... Rod 144 enters the upper channel 132 through the lifting receiving plate 129. The positive and negative detector is used to detect the positive and negative orientation of the foot pedal rod 144 on the lifting receiving plate 129. The flipping clamping assembly includes an active rotary clamp 131 and a driven rotary clamp 135 located on both sides above the lifting receiving plate 129, respectively. The active rotary clamp 131 and the driven rotary clamp 135 are arranged opposite to each other. The driven rotary clamp 135 is connected to the second displacement driver 136, and the active rotary clamp 131 is connected to the second displacement driver 130.

[0060] The active rotary gripper 131 is a rotary gripper cylinder with grippers attached, and the driven rotary gripper 135 is a common finger cylinder with grippers attached. The driven rotary gripper 135 is rotatably mounted on the displacement section of the second displacement driver 136. The second displacement driver 136 and the twentieth displacement driver 130 are conventional linear drivers in the art, such as motor lead screw modules, electric push rods, cylinders, etc. The front / back detector is a visual camera used to detect front and back orientation.

[0061] When the foot pedal 144 is pushed onto the lifting receiving plate 129 by the sixth pusher 127, the forward / reverse detector checks the forward / reverse orientation of the foot pedal 144 in the forward / reverse detection area. If the foot pedal 144 is detected as being in the wrong orientation, the lifting receiving plate 129 rises, causing the two ends of the foot pedal 144 to face the active rotary clamp 131 and the driven rotary clamp 135 respectively. The active rotary clamp 131 and the driven rotary clamp 135 move towards the center and clamp the two ends of the foot pedal 144 respectively. The lifting receiving plate 129 then descends, and the active rotary clamp... The active rotary clamp 131 and the driven rotary clamp 135 flip the clamped foot pedal 144 so that the foot pedal 144 is in the upright position. The lifting receiving plate 129 rises and receives the foot pedal 144 from below. The active rotary clamp 131 and the driven rotary clamp 135 release the clamped foot pedal 144. The lifting receiving plate 129 descends and connects the input end of the upper channel 132 and the end of the conveyor belt 125. The foot pedal 144 on it is pushed from the upper end of the lifting receiving plate 129 onto the upper channel 132 by the foot pedal 144 behind it.

[0062] Figure 15As shown, the first feeding assembly conveys the foot pedals 144 that fall on the lower channel 134 to each foot pedal station 143 in stages. The first feeding assembly includes a feeding bracket 140, a third displacement driver 137 that drives the feeding bracket 140 to move along the X-axis, and a first lifting driver 138 that drives the feeding bracket 140 to rise and fall along the Z-axis. Multiple lifting members 141 arranged along the X-axis are provided on both sides of the feeding bracket 140. The lifting members 141 on both sides are arranged one-to-one opposite each other. Each lifting member 141 has a support groove 142. The feeding bracket 140 conveys the foot pedals 144 on the lower channel 134 and each foot pedal station 143 forward step by step through the support groove 142. A fifth displacement bracket 139 is connected to the third displacement driver 137, and the first lifting driver 138 is located on the fifth displacement bracket 139. The feeding bracket 140 is connected to the first lifting driver 138.

[0063] The third displacement actuator 137 is a conventional linear drive structure, such as a motor lead screw module, electric push rod, cylinder, etc. The first lifting actuator 138 is also a conventional drive structure, such as a cylinder, hydraulic cylinder, oil cylinder, electric cylinder, etc.

[0064] The foot pedal station 143 is a material discharge chute that runs through both ends. During conveying, the feeding bracket 140 moves backward first. The first set of lifting components 141 moves from the first-level foot pedal station 143 to the position corresponding to the lower channel 134. The last set of lifting components 141 moves from the discharge area to the position corresponding to the last-level foot pedal station 143. The remaining lifting components 141 move from the position corresponding to the next-level foot pedal station 143 to the position corresponding to the previous-level foot pedal station 143. The feeding bracket 140 then moves upward, causing the support groove 142 of the first set of lifting components 141 to insert into the foot pedal 144 that falls on the lower channel 134. The remaining lifting components 141 use the support groove 142 to lift the foot pedal 144 on the corresponding foot pedal station 143 upward, causing the foot pedal 144 to move out of the foot pedal station 143. Then the feeding bracket... 140 moves forward again, the first set of lifting components 141 moves the foot pedal 144 on the lower channel 134 to above the first-level foot pedal station 143, the last set of lifting components 141 moves the foot pedal 144 on the next-level foot pedal station 143 to above the unloading area, and the remaining lifting components 141 move the foot pedal 144 of the previous-level foot pedal station 143 to above the next-level foot pedal station 143. Then the feeding bracket 140 moves downward again, so that the lifting components 141 place the foot pedal 144 in the corresponding position. The above steps are repeated to realize step-by-step feeding. When the last set of lifting components 141 feeds material to the unloading area, the forward-moving last set of lifting components 141 can push the foot pedal 144 in the unloading area forward, realizing the operation of pushing the foot pedal 144 in the unloading area forward to unload material.

[0065] Figure 16As shown, a punching mechanism 15 is provided around the periphery of the conveying track 123. The punching mechanism 15 is located upstream of the second assembly mechanism 20 along the conveying direction of the foot pedal 144. The punching mechanism 15 includes a left punching assembly for punching the left end of the foot pedal 144 and a right punching assembly for punching the right end of the foot pedal 144. The left punching assembly and the right punching assembly are respectively provided corresponding to two foot pedal stations 143.

[0066] The left punching assembly includes a first right push plate 146 located to the right of the foot pedal station 143, a sixth displacement actuator 145 that drives the first right push plate 146 to move along the Y-axis, a first left push plate 164 located to the left of the foot pedal station 143, a seventh displacement actuator 163 that drives the first left push plate 164 to move along the Y-axis, a first punching part 161 with a punch 162, a first drive block 159, and an eighth displacement actuator 160 that drives the first drive block 159 to move along the Y-axis. The first left push plate 164 is provided with a connection to the foot pedal station. The first positioning block 165 is opposite to 143. The first positioning block 165 is provided with a first clearance channel 154. The first punch 161 is located on one side of the first positioning block 165 in the X-axis direction, and the punch 162 is opposite to the first clearance channel 154. The first punch 161 is slidably mounted on the frame 1. The first drive block 159 and the first punch 161 are in contact through an inclined surface. The first drive block 159 can push the first punch 161 to move in the X-axis direction. A second reset spring 156 is provided between the first punch 161 and the frame 1.

[0067] When punching the left side, the first right push plate 146 pushes the foot pedal 144 to move to the left, so that the left end of the foot pedal 144 is fitted onto the first positioning block 165. Then, the first drive block 159 moves forward to push the first punching part 161 to move along the X-axis. The first punching part 161 punches a hole at the left end of the foot pedal 144. The first clearance channel 154 makes way for the punch 162 of the first punching part 161. After punching is completed, the first drive block 159 moves back to its original position. The first punching part 161 is pulled back to its initial position by the second reset spring 156. Then, the first left push plate 164 pushes the left-moved foot pedal 144 to move back to its original position and is conveyed to the next station by the first feeding assembly.

[0068] The sixth displacement actuator 145, the seventh displacement actuator 163, and the eighth displacement actuator 160 are conventional actuators for driving linear motion in the art, such as pneumatic cylinders, hydraulic cylinders, oil cylinders, electric cylinders, etc.

[0069] The right-side punching assembly includes a second right push plate 148 located to the right of the foot pedal station 143, a ninth displacement actuator 149 that drives the second right push plate 148 to move along the Y-axis, a second left push plate 157 located to the left of the foot pedal station 143, a tenth displacement actuator 158 that drives the second left push plate 157 to move along the Y-axis, a second punching part 150 with a punch 162, a second drive block 152, and an eleventh displacement actuator 151 that drives the second drive block 152 to move along the Y-axis. The second right push plate 148 is provided with a second positioning block 147 opposite to the foot pedal station 143. The insertion block 147 is provided with a second clearance channel 155. The second punch 150 is located on one side of the second positioning insertion block 147 in the X-axis direction, and the punch 162 is opposite to the second clearance channel 155. The second punch 150 is slidably mounted on the frame 1. The second drive block 152 and the second punch 150 are in contact through an inclined surface. The second drive block 152 can push the second punch 150 to move in the X-axis direction. A third reset spring 153 is provided between the second punch 150 and the frame 1.

[0070] When punching the right side, the foot pedal 144 is pushed to the right by the second left push plate 157, so that the right end of the foot pedal 144 is fitted onto the second positioning block 147. Then, the second drive block 152 moves forward to push the second punching part 150 to move along the X-axis. The second punching part 150 punches a hole at the right end of the foot pedal 144. The second clearance channel 155 makes way for the punch 162 of the second punching part 150. After punching is completed, the second drive block 152 moves back to its original position. The second punching part 150 is pulled back to its initial position by the third reset spring 153. Then, the second right push plate 148 pushes the right-moving foot pedal 144 to move back to its original position and is conveyed to the next station by the first feeding assembly.

[0071] The ninth displacement actuator 149, the tenth displacement actuator, and the eleventh displacement actuator 151 are conventional actuators for driving linear motion in the art, such as pneumatic cylinders, hydraulic cylinders, oil cylinders, electric cylinders, etc.

[0072] A first centering mechanism 19 is provided around the periphery of the conveying track 123. The first centering mechanism 19 is positioned between the second assembly mechanism 20 and the punching mechanism 15 along the conveying direction of the foot pedal 144. The first centering mechanism 19 corresponds to one of the foot pedal stations 143. The first centering mechanism 19 includes a first fixed abutment 169 and a first movable pusher 168, which are positioned opposite each other on both sides of the foot pedal station 143. The first movable pusher 168 is connected to a twenty-first displacement actuator 167 and can be driven to move by the twenty-first displacement actuator 167. When the foot pedal 144 is conveyed to the station corresponding to the first centering mechanism 19, the first movable pusher 168 pushes the foot pedal 144 to one side, causing the other end of the foot pedal 144 to abut against the first fixed abutment 169 for centering. The twenty-first displacement actuator 167 is a conventional linear motion actuator in the art, such as a pneumatic cylinder, hydraulic cylinder, oil cylinder, or electric cylinder.

[0073] Figures 17-19 As shown, the second assembly mechanism 20 includes a left-end assembly component 166 and a right-end assembly component 170, which are respectively configured to correspond to two foot pedal positions 143.

[0074] The left-end assembly component 166 is used to assemble the second assembly 112 at the first assembly area with the foot pedal 144 by a plug-in connection. The left-end assembly component 166 includes a first right pusher 187 located to the right of the foot pedal station 143, a sixteenth displacement driver 186 that drives the first right pusher 187 to move along the Y-axis, a first left pusher located to the left of the foot pedal station 143, and a seventeenth displacement driver 192 that drives the first left pusher to move along the Y-axis. The first assembly area is provided with a foot pedal station. A first receiving seat 189 is located between 143 and the first left pusher. The first receiving seat 189 is connected to the sixth lifting driver 188 and can be driven to lift by the sixth lifting driver 188. The first receiving seat 189 is provided with a first receiving groove 199 for receiving the second assembly 112 transported by the first conveying mechanism 17. The first left pusher includes a first moving plate 191 corresponding to the annular portion 245 of the connecting ring 80. The first moving plate 191 is provided with a first pushing part 190 that pushes material into the annular portion 245 of the connecting ring 80. The first receiving groove 199 has a seventh clearance opening 196 on both sides for avoiding the first conveying mechanism 17.

[0075] When the first conveying mechanism 17 conveys the second assembly 112 of the conveying area 174 to the first receiving groove 199, the insertion part 246 of the connecting ring 80 is in the first receiving groove 199 and one end of the insertion part 246 near the work station protrudes partially from the first receiving groove 199. The annular part 245 of the connecting ring 80 falls on the first moving plate 191, and the first pushing part 190 on the first moving plate 191 enters the annular part 245 of the connecting ring 80. The first right pushing member 187 pushes the foot pedal 144 to the left, so that the left end of the foot pedal 144 first engages with the insertion part of the connecting ring 80. The protruding part of the connector 246 is inserted, at which time the foot pedal 144 can support one end of the connecting ring 80. The first receiving seat 189 moves downward and moves away from the position between the foot pedal station 143 and the first left pusher. Then the first moving plate 191 drives the first pusher 190 to move to the right. The first pusher 190 pushes the connecting ring 80 to the right, so that the rest of the connector 246 of the connecting ring 80 is inserted into the left end of the foot pedal 144, completing the assembly. In this process, the first right pusher 187 serves as the abutment part of the right end of the foot pedal 144.

[0076] The sixteenth displacement actuator 186, the seventeenth displacement actuator 192, and the sixth lifting actuator 188 are conventional actuators for driving linear movement in the art, such as pneumatic cylinders, hydraulic cylinders, oil cylinders, electric cylinders, etc.

[0077] A first fixed seat 197 may be provided between the first receiving seat 189 and the foot pedal station 143. The first fixed seat 197 has a first fixed groove 198, which is used to support the left end of the foot pedal 144 when the foot pedal 144 moves to the left.

[0078] The right-end assembly assembly 170 is used to assemble the second assembly 112 and the foot pedal 144 in the second assembly area by a plug-in connection. The right-end assembly assembly 170 includes a second left pusher 172 located to the left of the foot pedal station 143, an eighteenth displacement driver 173 that drives the second left pusher 172 to move along the Y-axis, a second right pusher located to the right of the foot pedal station 143, and a nineteenth displacement driver 182 that drives the second right pusher to move along the Y-axis. The second assembly area is provided with a foot pedal station. A second receiving seat 178 is located between the second right pusher and the second receiving component. The second receiving seat 178 is connected to the seventh lifting driver 179 and can be driven to rise and fall by the seventh lifting driver 179. The second receiving seat 178 is provided with a second receiving groove 177 for receiving the second assembly 112 transported by the second transport mechanism 18. The second right pusher includes a second moving plate 181 corresponding to the annular portion 245 of the connecting ring 80. The second moving plate 181 is provided with a second pushing portion 183 that pushes material into the annular portion 245 of the connecting ring 80. The second receiving groove 177 has eighth clearance openings 180 on both sides for avoiding the second transport mechanism 18.

[0079] When the second conveying mechanism 18 conveys the second assembly 112 of the conveying area 174 to the second receiving groove 177, the insertion part 246 of the connecting ring 80 is located in the second receiving groove 177, and one end of the insertion part 246 near the work station partially protrudes from the second receiving groove 177. The annular part 245 of the connecting ring 80 falls on the second moving plate 181, and the second pushing part 183 on the second moving plate 181 enters the annular part 245 of the connecting ring 80. The second left pushing part 172 pushes the foot pedal 144 to the right, so that the right end of the foot pedal 144 engages with the insertion part of the connecting ring 80. The protruding part of the connector 246 is inserted, at which time the foot pedal 144 can support one end of the connecting ring 80. The second receiving seat 178 moves downward and moves away from the position between the foot pedal station 143 and the second right pusher. Then the second moving plate 181 drives the second pusher 183 to move to the left. The second pusher 183 pushes the connecting ring 80 to the left, so that the rest of the connector 246 of the connecting ring 80 is inserted into the right end of the foot pedal 144, completing the assembly. In this process, the second left pusher 172 serves as the abutment part of the foot pedal 144 seat end.

[0080] The eighteenth displacement actuator 173, the nineteenth displacement actuator 182, and the seventh lifting actuator 179 are conventional actuators for driving linear movement in the art, such as pneumatic cylinders, hydraulic cylinders, oil cylinders, electric cylinders, etc.

[0081] The first handling mechanism 17 includes a fourth PPU manipulator 194 and a seventh finger cylinder 195. The seventh finger cylinder 195 is connected to the fourth PPU manipulator 194 and can be driven by the fourth PPU manipulator 194 to move up and down and translate along the Y-axis. Two seventh grippers 193 are connected to the seventh finger cylinder 195. The two seventh grippers 193 can be driven by the seventh finger cylinder 195 to open and close. The fourth PPU manipulator 194 can drive the seventh finger cylinder 195 to move between the top of the first assembly area and the top of the handling area 174. The fourth PPU manipulator 194 can also drive the seventh finger cylinder 195 to move down to pick up the second assembly 112 at the handling area 174 or place the picked-up second assembly 112 into the first assembly area.

[0082] The fourth PPU robotic arm 194 uses a conventional drive structure, which can be found in patents CN224061788U, CN223544283U, CN223396467U and CN221250262U.

[0083] The second conveying mechanism 18 includes a rotary lifting drive 185 and a rotary transfer frame. The rotary lifting drive 185 and the rotary transfer frame are disposed above the conveying track 123. The rotary transfer frame is connected to the rotary lift and can be driven to lift and rotate about a vertical axis by the rotary lift. The rotary transfer frame includes at least one rotating arm 175. The outer end of the rotating arm 175 is provided with a laterally extending flange 176. An eighth finger cylinder 184 is mounted on the flange 176. The eighth finger cylinder 184 is connected to... Two eighth grippers 171 are driven by the eighth finger cylinder 184 to open and close. The eighth grippers 171 grip the second assembly 112 in the transport area 174 and transport it to the second assembly area by rotating the rotating arm 175 180°. When the rotating arm 175 rotates to change the second assembly 112 to the other side of the transport track 123, it also changes the direction of the second assembly 112, so that the insertion part 246 of the connecting ring 80 is also facing the foot pedal station 143 after the side is changed.

[0084] By providing a folded edge 176 on the outer end of the rotating arm 175, the clamping position and the unloading position of the eighth finger cylinder 184 at the end of the rotating arm 175 have a front-to-back position difference in the X-axis direction, so that the eighth finger cylinder 184 can transport the second assembly 112 of the transport area 174 to the second assembly area opposite to the foot pedal station 143.

[0085] Preferably, there are two rotating arms 175, which are evenly arranged in a ring around the axis of rotation. Each of the two rotating arms 175 is provided with an eighth finger cylinder 184 at its outer end, so that when one eighth finger cylinder 184 rotates to the top of the transport area 174, the other eighth finger cylinder 184 rotates to the top of the second assembly area.

[0086] The rotary lifting drive 185 is a conventional existing drive structure, such as a ball spline rotary lifting mechanism, which can drive both lifting and rotation; or the rotary lifting drive 185 includes a lifting drive and a rotary drive, the lifting drive being such as a motor screw module or a cylinder, the rotary drive being a geared motor, a lifting frame connected to the lifting drive, the rotary drive being connected to the lifting frame, the rotary drive having a vertical rotating shaft, and a rotary transfer frame connected to the rotating shaft.

[0087] The second turntable 10 is located on one side of the left and right sides of the conveying track 123. The transfer mechanism 13 is used to transfer the second assembly 112 on the second clamp 76 to the transport area 174 along the Y-axis. The transfer mechanism 13 includes a rotary feeding assembly, a second feeding channel 111, a second discharging channel 117, and a fourth pushing assembly. The second feeding channel 111 and the second discharging channel 117 are arranged on both sides of the rotary feeding assembly. The rotary feeding assembly includes a third turntable 113 that rotates around a horizontal axis. The third turntable 113 is provided with a plurality of transfer shells 114 extending radially therefrom. The material transfer shell 114 is arranged in a ring around the rotation axis of the third turntable 113. The material transfer shell 114 is provided with a material storage bin 121. The outer end of the material transfer shell 114 is provided with an inlet and outlet 122 of the material storage bin 121. The inner end of the material transfer shell 114 is provided with a third push port 119. The material transfer shell 114 can be rotated to flip the second assembly 112 contained therein, so that the insertion part 246 of the connecting ring 80 faces the conveying track 123. When the second clamp 76 rotates with the second turntable 10 to a position opposite to the transfer mechanism 13, the second feeding channel 111 is set between the second clamp 76 and the rotary feeding assembly.

[0088] Preferably, the second turntable 10 is provided with four second clamps 76. When the second turntable 10 rotates intermittently once, the four clamps are respectively opposite to the connecting ring feeding mechanism 11, the first assembly mechanism 9, the soft pad feeding mechanism 12 and the transfer mechanism 13.

[0089] The fourth pushing component includes a first displacement driver 115, a second displacement bracket 110, a fourth pushing component 108, and a fifth pushing component 116. The second displacement bracket 110 is connected to the first displacement driver 115 and can be driven by the first displacement driver 115 to move horizontally. The fourth pushing component 108 and the fifth pushing component 116 are spaced apart on the second displacement bracket 110. Each second clamp 76 on the second turntable 10 surrounds the center of the second turntable 10 to form a first central receiving area 109. Each material transfer shell 114 surrounds the center of the third turntable 113 to form a second central receiving area 120. The fourth pushing component 108 is located in the first central receiving area 109 and is used to push the second assembly 112 assembled on the second clamp 76 into the material storage bin 121. The fifth pushing component 116 is located in the second central receiving area 120 and is used to push the second assembly 112 in the flipped material storage bin 121 onto the second discharge channel 117.

[0090] The fourth pusher 108 is located in the first central receiving area 109, which can avoid interfering with the rotation of the second turntable 10 and the second clamp 76, while the fifth pusher 116 is located in the second central receiving area 120, which can avoid interfering with the rotation of the third turntable 113 and the transfer shell 114. The second positioning groove 92 is a through groove, and the first loading inlet 99 is also a through opening, so that the fourth pusher 108 can move within the first loading inlet 99 when pushing material. In addition, the width of the push port at the inner end of the transfer shell 114 is smaller than the width of the second assembly 112 entering the transfer shell 114, so that the second assembly 112 will not fall out from the inner end of the transfer shell 114 when the transfer shell 114 is rotated to the vertical position. The side of the transfer shell 114 is provided with a ninth clearance opening 118 to avoid the fifth pusher 116 when pushing material. The ninth clearance opening 118 can avoid interference between the fifth pusher 116 and the transfer shell 114 when pushing material, and the fifth pusher 116 can move within the ninth clearance opening 118.

[0091] The first displacement actuator 115 is a conventional linear actuator in the art, such as a motor lead screw module, electric push rod, cylinder, etc., and the third turntable 113 is a conventional divider turntable, such as the cam divider disclosed by the brand KONBORLAN, which drives the first turntable 5 to rotate intermittently in one direction through a drive structure. Preferably, the third turntable 113 is provided with four uniformly arranged annular arrays of transfer housings 114.

[0092] During the transfer, the second displacement bracket 110 drives the fourth pusher 108 and the fifth pusher 116 to move to the right. The fourth pusher 108 pushes the second assembly 112 on the second clamp 76 outward from the inside into the left transfer shell 114. The fifth pusher 116 pushes the second assembly 112, which has rotated to the right side of the transfer shell 114, to the right, so that the second assembly 112 in the transfer shell 114 enters the second discharge channel 117. The second displacement bracket 110 drives the fourth pusher 108 and the fifth pusher 116 to move to the left to return to their original positions. The third turntable 113 drives the transfer shell 114 to rotate 90°. The above operation is repeated. The second assembly 112 that enters the second discharge channel 117 later can push the one that entered earlier to move forward until it moves to the transport area 174.

[0093] Figure 20 As shown, a riveting mechanism 21 is provided around the periphery of the conveying track 123. The riveting mechanism 21 is located downstream of the second assembly mechanism 20 along the conveying direction of the foot pedal 144. The riveting mechanism 21 includes a left riveting component and a right riveting component, which are respectively provided with two foot pedal positions 143.

[0094] The left riveting assembly includes a third right push plate 211 located to the right of the foot pedal station 143, a twelfth displacement driver 210 that drives the third right push plate 211 to move along the Y-axis, a left support 218 located to the left of the foot pedal station 143, a first pressing block 213 located above the left support 218, a second lifting driver 212 that drives the first pressing block 213 to move up and down, a first limiting block 215 that limits the first pressing block 213, a thirteenth displacement driver 216 that drives the first limiting block 215 to move, a first riveting head 221 located below the left support 218, and a third lifting driver 200 that drives the first riveting head 221 to move up and down. The left support 218 is provided with a fifth clearance opening through which the first riveting head 221 passes upward. The left support 218 is provided with a first abutment part 217 for the left end of the foot pedal assembly to abut against. The first pressing block 213 is provided with a first limiting slot 214 for the first limiting block 215 to be inserted and limited.

[0095] During riveting, the third right push plate 211 pushes the assembled pedal assembly to the left, positioning the left end of the pedal assembly against the first abutment 217. Then, the first pressure block 213 moves down to abut the upper part of the left end of the pedal assembly, and the first limiting block 215 moves and inserts into the first limiting slot 214 on the first pressure block 213, locking the movement of the first pressure block 213. The first riveting head 221 moves upward and presses against the left end of the pedal assembly, riveting the left end of the pedal assembly so that the insertion part 246 of the connecting ring 80 is fixed to the left end of the pedal rod 144 sleeved on the outside, preventing the two from disengaging. After the riveting is completed, each component moves back to its original position, and the pedal assembly is transported to the next work station.

[0096] The right riveting assembly includes a third left push plate 220 located to the left of the foot pedal station 143, a fourteenth displacement driver 219 that drives the third left push plate 220 to move along the Y-axis, a right support seat 203 located to the right of the foot pedal station 143, a second pressing block 207 located above the right support seat 203, a fourth lifting driver 209 that drives the second pressing block 207 to move up and down, a second limiting block 206 for limiting the second pressing block 207, a fifteenth displacement driver 205 that drives the second limiting block 206 to move, a second riveting head 202 located below the right support seat 203, and a fifth lifting driver 201 that drives the second riveting head 202 to move up and down. The right support seat 203 is provided with a sixth clearance opening for the second riveting head 202 to pass through upwards. The right support seat 203 is provided with a second abutment part 204 for the right end of the foot pedal assembly to abut against. The second pressing block 207 is provided with a second limiting slot 208 for the second limiting block 206 to insert and limit.

[0097] During riveting, the third left push plate 220 pushes the assembled pedal assembly to the right, positioning the right end of the pedal assembly against the second abutment 204. Then, the second pressure block 207 moves down to abut the upper part of the right end of the pedal assembly, and the second limiting block 206 moves and inserts into the second limiting slot 208 on the second pressure block 207, locking the movement of the second pressure block 207. The second riveting head 202 moves upward and presses against the right end of the pedal assembly, riveting the right end of the pedal assembly so that the insertion part 246 of the connecting ring 80 is fixed to the right end of the pedal rod 144 sleeved on the outside, preventing the two from disengaging. After the riveting is completed, each component moves back to its original position, and the pedal assembly is conveyed to the next work station.

[0098] The twelfth displacement actuator 210, the second lifting actuator 212, the thirteenth displacement actuator 216, the third lifting actuator 200, the fourteenth displacement actuator 219, the fourth lifting actuator 209, the fifteenth displacement actuator 205, and the fifth lifting actuator 201 are existing conventional drive structures, such as pneumatic cylinders, hydraulic cylinders, oil cylinders, electric cylinders, etc.

[0099] Figure 21 As shown, a push-button feeding mechanism 22 is provided around the periphery of the conveying track 123. The push-button feeding mechanism 22 is located downstream of the second assembly mechanism 20 along the conveying direction of the foot pedal 144. Specifically, the push-button feeding mechanism 22 is located downstream of the riveting mechanism 21 along the conveying direction of the foot pedal 144.

[0100] The push button feeding mechanism 22 has two sets, which are distributed on the left and right sides of the first-level foot pedal station 143. The two sets of push button feeding mechanisms 22 are used to feed the switch push buttons to the two sides of the foot pedal station 143 respectively and install the switch push buttons at both ends of the foot pedal assembly.

[0101] The push-button feeding mechanism 22 includes a sixth vibrating feeding plate 222, a sixth feeding channel 223, a sixth pushing assembly, and a fourth loading assembly. The input end of the sixth feeding channel 223 is connected to the output end of the sixth vibrating feeding plate 222. The output end of the sixth feeding channel 223 is provided with a fifth feeding seat 234. The fifth feeding seat 234 is provided with a second pushing channel 238 that communicates with the output end of the sixth feeding channel 223. One end of the second pushing channel 238 has a fourth pushing port. The sixth pushing assembly includes a seventh pushing component 236 and a fifth pushing cylinder 237 that drives its movement. The seventh pushing component 236 is located in the second pushing channel 238. The seventh pushing component 236 is provided with a fourth positioning groove 235 that corresponds to the drive rod 247 of the switch push button. When the seventh pushing component 236 is in the initial position, the fourth positioning groove 235 is connected to the outlet of the sixth feeding channel 223. The second pushing channel 238 is provided with fourth clearance openings 239 on both sides. The sixth vibrating feeder 222 is a conventional vibrating feeder structure, such as the vibrating feeder of brand Shunke and model SK320. To make the feeding smoother, the sixth feeding channel 223 can be set on the direct vibrating feeder.

[0102] The fourth loading assembly includes a fourth displacement driver 224, a fourth displacement bracket 225, a first rotary driver 227, a first rotary bracket 228, a fifth displacement driver 226, and a sixth finger cylinder 232. The fourth displacement bracket 225 is connected to the fourth displacement driver 224 and can be driven to move by the fourth displacement driver 224. The first rotary driver 227 is mounted on the fourth displacement bracket 225. The first rotary bracket 228 is connected to the first rotary driver 227 and can be driven to rotate by the first rotary driver 227. The fifth displacement driver 226 is mounted on the first rotary bracket 228. The sixth finger cylinder 232 is connected to the fifth displacement driver 226 and can be driven to move forward or backward by the fifth displacement driver 226. Two sixth grippers 233 are connected to the sixth finger cylinder 232. The two sixth grippers 233 can be driven to open and close by the sixth finger cylinder 232. The sixth grippers 233 move to cooperate with the rotation of the gripping switch push button and are mounted onto the foot pedal assembly.

[0103] In the initial position, the sixth finger cylinder 232 faces downwards and is opposite to the fifth loading seat 234 below. During assembly, the fifth pushing cylinder 237 drives the seventh pushing component 236 to move forward along the second pushing channel 238, conveying the switch button 249, which has entered the fourth positioning groove 235, to the position between the fourth clearance openings 239 on both sides. The fifth displacement driver 226 drives the sixth finger cylinder 232 to move downwards to clamp the switch button 249 located between the fourth clearance openings 239 on both sides, and lifts it upwards. The fourth clearance openings 239 provide clearance for the clamping of the sixth gripper 233. The fourth displacement driver 224 drives the fourth displacement bracket 225 to move laterally, causing the sixth finger cylinder 232 to move the clamped switch button 249. To one side of the foot pedal assembly end, the first rotary driver 227 drives the first rotary bracket 228 to rotate, causing the sixth finger cylinder 232 to change from a downward-facing state to a horizontal orientation, and the sixth finger cylinder 232 to be aligned with the punched hole on the end of the foot pedal lever 144. The fifth displacement driver 226 drives the sixth finger cylinder 232 to move forward, so that the drive rod 247 of the switch button 249 can pass through the punched hole and be inserted into the insertion part 246 of the connecting ring 80. The elastic clip 248 at the end of the drive rod 247 is clamped on the neck 241 of the locking pin 243, completing the assembly. After the assembly is completed, each component moves back to its original position, and the foot pedal assembly is conveyed forward.

[0104] After the switch button 249 is clamped, the fifth pusher cylinder 237 drives the seventh pusher 236 to move back to its original position along the second pusher channel 238. The switch button 249 is transported from the sixth feeding channel 223 into the second pusher channel 238, and the switch button 249 enters the fourth positioning groove 235 of the fifth pusher cylinder 237 to prepare for the next push.

[0105] The fourth displacement driver 224 and the fifth displacement driver 226 are conventional linear drivers in the art, such as motor lead screw modules, electric push rods, cylinders, etc., and the first rotary driver 227 is a conventional rotary driver in the art, such as a geared motor, etc.

[0106] A second centering mechanism is provided around the conveyor track 123. The second centering mechanism and the push button feeding mechanism 22 correspond to the same foot pedal station 143. The second centering mechanism is used to adjust the position of the foot pedal assembly on the foot pedal station 143 so that the switch button 249 can be accurately inserted into the hole.

[0107] The second centering mechanism includes a second fixed abutment 229 and a second movable pusher 230. The second fixed abutment 229 and the second movable pusher 230 are arranged opposite each other on both sides of the foot pedal station 143. The second movable pusher 230 is connected to the second twelfth displacement actuator 231 and can be driven to move by the second twelfth displacement actuator 231. When the foot pedal 144 is conveyed to the corresponding station of the second centering mechanism, the second movable pusher 230 pushes the foot pedal assembly to one side, so that the other end of the foot pedal assembly abuts against the second fixed abutment 229 to achieve position adjustment. After adjustment, the switch button 249 is assembled. The second twelfth displacement actuator 231 is a conventional actuator for driving linear movement in the art, such as a pneumatic cylinder, hydraulic cylinder, oil cylinder, electric cylinder, etc.

[0108] This patent achieves automated assembly of pedal components through the cooperation of various mechanical devices, thereby improving production efficiency and reducing labor costs.

[0109] Each channel used for conveying parts can be equipped with a guide groove to guide the movement of the conveyed parts.

[0110] All of the above components are mounted on frame 1.

[0111] The automated assembly equipment for the telescopic ladder tread assembly provided by this invention has been described above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. An automated assembly equipment for telescopic ladder tread assemblies, characterized in that, include: frame; A first assembly device is used to assemble a spring seat, a return spring, and a locking pin into a first assembly. It includes a first turntable that rotates intermittently, and a spring seat feeding mechanism, a spring feeding mechanism, and a locking pin feeding mechanism arranged sequentially along the outer periphery of the first turntable. The first turntable is provided with a plurality of first clamps arranged circumferentially. Each first clamp is provided with a first positioning groove for the lateral insertion of the spring seat and a limiting pressure plate that can slide relative to the first clamp along the radial direction of the first turntable and press the locking pin. A first return tension spring is provided between the limiting pressure plate and the first clamp. A first driving mechanism is provided on the first turntable or frame for driving the limiting pressure plate to move. The spring seat feeding mechanism is used to feed the spring seat into the first positioning groove. The spring feeding mechanism is used to feed the return spring to the first clamp and install the return spring into the spring seat. The locking pin feeding mechanism is used to feed the locking pin to the first clamp and install the locking pin on the spring seat. The second assembly device is used to assemble the first assembly and the connecting ring into a second assembly. It includes a second turntable that rotates intermittently, a connecting ring feeding mechanism and a first assembly mechanism arranged around the second turntable. The second turntable is provided with a plurality of second clamps arranged circumferentially. The second clamps are provided with second positioning grooves for the insertion part of the connecting ring to be inserted laterally. The top of the second clamps is provided with an inlet for the assembly parts to be inserted into the insertion part of the connecting ring. The connecting ring feeding mechanism is used to feed the connecting ring into the second positioning groove. The first assembly mechanism is located between the first turntable and the second turntable. The first assembly mechanism is used to insert the first assembly assembled on the first clamp into the insertion part of the connecting ring. The third assembly device is used to assemble the second assembly and the foot pedal into a foot pedal assembly. It includes a foot pedal feeding mechanism, a conveying mechanism, a second assembly mechanism, a first conveying mechanism, and a second conveying mechanism. The conveying mechanism includes a conveying track extending along the X-axis and a first feeding component. Multiple foot pedal stations are spaced apart along the X-axis on the conveying track. The foot pedal feeding mechanism conveys the foot pedal to the input end of the conveying track, and the first feeding component conveys the foot pedal from the input end to each level of the foot pedal station. One side of the conveying track has a conveying area for the first and second conveying mechanisms to pick up materials. The conveying area is located between the second turntable and the conveyor. A transfer mechanism is provided to transfer the second assembly on the second fixture to the transport area. The two sides of the conveyor track are respectively provided with a first assembly area and a second assembly area corresponding to the foot pedal station. The first transport mechanism is used to transport the second assembly in the transport area to the first assembly area on the same side. The second transport mechanism is used to transport the second assembly in the transport area to the second assembly area on the other side. During this process, the second assembly is rotated 180° around the vertical axis to adjust the plug part of the connecting ring to be opposite to the foot pedal station. The second assembly mechanism is used to assemble the second assembly in the first assembly area and the second assembly area with the foot pedal on the corresponding foot pedal station in a plug-in manner.

2. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The spring seat feeding mechanism includes a first vibrating feeding plate, a first feeding channel, and a first pushing assembly. The input end of the first feeding channel is connected to the first vibrating feeding plate, and the output end of the first feeding channel is provided with a first feeding seat. The first feeding seat is provided with a first feeding channel and a first discharging channel that are connected to each other. Both sides of the first feeding channel and the first discharging channel are provided with first guide grooves for guiding and cooperating with the insert plate of the spring seat. The input end of the first feeding channel is connected to the output end of the first feeding channel. The first discharging channel is located at the output end of the first feeding channel and has a first discharge port opposite to the first clamp and a first pushing port opposite to the first pushing assembly. The first pushing assembly includes a first pushing member and a first pushing cylinder that drives the first pushing member to move. The first pushing member can push the spring seat in the first discharging channel into the corresponding first positioning groove. The spring feeding mechanism includes a second vibrating feeding plate, a first feeding pipe, a first baffle assembly, and a first loading assembly. The second vibrating feeding plate is used to feed the reset springs into the first feeding pipe. The first baffle assembly includes a first lifting bracket and a first lifting cylinder that drives the first lifting bracket to rise and fall. The first lifting bracket is provided with a first baffle and a second baffle, the second baffle being a baffle pin. The first feeding pipe is provided with a first insertion port opposite to the second baffle. When the first lifting bracket rises, the first baffle blocks in front of the outlet of the first feeding pipe and leaves a gap between it and the outlet for the reset spring to extend. The second baffle is located outside the first feeding pipe. When the first lifting bracket falls, the first baffle moves away from in front of the outlet of the first feeding pipe, and the second baffle is inserted into the first feeding pipe through the first insertion port and blocks behind the first reset spring. The first loading assembly includes a second lifting bracket, a second lifting cylinder that drives the second lifting bracket to rise and fall, and a first tilting drive cylinder. The system comprises a first sliding block and a first finger cylinder, a first tilting drive cylinder and a first sliding block mounted on a second lifting bracket. The first sliding block can be pushed by the first tilting drive cylinder to slide horizontally relative to the second lifting bracket. The first sliding block is provided with a first rotating shaft, one end of which is connected to the first finger cylinder. The first finger cylinder is connected to two first grippers that can open and close. The other end of the first rotating shaft is connected to a first rocker arm, and the other end of the first rocker arm is provided with a first sliding part. The second lifting bracket is provided with a first sliding groove on one side of the first sliding block. The first sliding groove includes a first horizontal groove and a first arc groove. The first sliding part slides into the first sliding groove. When the first sliding part slides into the first horizontal groove, the first gripper faces downward and is opposite to the outlet of the first feeding pipe. The first gripper can grab the return spring at the outlet of the first feeding pipe. When the first sliding part slides into the first arc groove, the first gripper flips to face horizontally forward and is opposite to the first clamp. The first gripper can put the grabbed return spring into the spring seat. The locking pin feeding mechanism includes a third vibrating feeding plate, a second feeding seat, and a second loading assembly. The second feeding seat has a second feeding channel, and first clearance openings are provided on both sides of the second feeding channel. The third vibrating feeding plate is used to feed locking pins into the second feeding channel. The second loading assembly includes a third lifting bracket, a third lifting cylinder for driving the third lifting bracket to rise and fall, a second tilting drive cylinder, a second slide block, and a second finger cylinder. The second tilting drive cylinder and the second slide block are mounted on the third lifting bracket. The second slide block can be pushed by the second tilting drive cylinder to slide horizontally relative to the third lifting bracket. The second slide block has a second rotating shaft, and one end of the second rotating shaft is connected to the second finger cylinder. The cylinder has two second grippers connected to the second finger cylinder, which can open and close. The other end of the second rotating shaft is connected to a second rocker arm, and the other end of the second rocker arm is provided with a second sliding part. The third lifting bracket is provided with a second sliding groove on one side of the second slide block. The second sliding groove includes a second horizontal groove and a second arc groove. The second sliding part slides in cooperation with the second sliding groove. When the second sliding part slides into the second horizontal groove, the second grippers face downwards and are opposite to the second feeding channel. The second grippers can grab the locking pin in the second feeding channel. When the second sliding part slides into the second arc groove, the second grippers flip to face horizontally forward and are opposite to the first clamp. The second grippers can mount the grabbed locking pin on the spring seat. The first turntable has a fixed plate at its center, and a first drive mechanism is mounted on the fixed plate. The first drive mechanism includes a pull claw and a first push cylinder that drives the pull claw to move. The pull claw has two pulling parts that are opposite each other, and there is a gap between the pulling parts for the limit plate to pass through. The limit plate has a mating part that cooperates with the pull claw. When the first clamp rotates with the first turntable to a position opposite to the locking pin feeding mechanism, the mating part on the limit plate enters the pull claw, and the pull claw can pull the mating part through the pulling part to move the limit plate.

3. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The connecting ring feeding mechanism includes a fourth vibrating feeding plate, a third feeding channel, a third feeding seat, a second pushing assembly, and a first transferring assembly. The third feeding channel is connected to the output end of the fourth vibrating feeding plate, and the third feeding seat is located on one side of the third feeding channel. The bottom of the third feeding seat is provided with a second clearance opening. The first transferring assembly includes a first PPU manipulator and a third finger cylinder. The third finger cylinder is connected to the first PPU manipulator and can be driven by the first PPU manipulator to move vertically and horizontally. Two opening and closing mechanisms are connected to the third finger cylinder. The third gripper grips the connecting ring on the third feeding channel and places it on the third feeding seat. The second pushing assembly includes a second pushing cylinder, a first displacement bracket, a fourth lifting cylinder, and a second pushing component. The first displacement bracket is connected to the second pushing cylinder and can be driven to move by the second pushing cylinder. The fourth lifting cylinder is set on the first displacement bracket. The second pushing component is located below the third feeding seat. The second pushing component is connected to the fourth lifting cylinder and can be driven to rise and fall by the fourth lifting cylinder. The second pushing component can push material upward through the second clearance opening. The second turntable is equipped with a soft pad feeding mechanism around its periphery. This mechanism is used to feed soft pads to the second fixture and mount them onto the second assembly. The soft pad feeding mechanism includes a fifth vibrating feeding disc, a fourth feeding channel, a third pushing assembly, and a third loading assembly. The input end of the fourth feeding channel is connected to the output end of the fifth vibrating feeding disc. The output end of the fourth feeding channel is provided with a fourth feeding seat. The fourth feeding seat has a first pushing channel that runs vertically through it. The first pushing channel has a second discharge port at the upper end and a second pushing port at the lower end, opposite to the third pushing assembly. The lower end of the first pushing channel is connected to the output end of the fourth feeding channel. The upper end of the material channel is provided with third clearance openings on both sides. The third pushing component includes a third pushing cylinder and a third pushing part. The third pushing part is connected to the third pushing cylinder and can be driven by the third pushing cylinder to move up and down. The third pushing part is provided with two third positioning slots corresponding to the two pins of the soft pad block. The third loading component includes a second PPU manipulator and a fourth finger cylinder. The fourth finger cylinder is connected to the second PPU manipulator and can be driven by the second PPU manipulator to move up and down and translate. The fourth finger cylinder is connected to two fourth grippers that can open and close. The fourth grippers can grab the soft pad block pushed out from the second discharge port and load it onto the second assembly.

4. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The first assembly mechanism includes a drive component and a fifth finger cylinder. The fifth finger cylinder can be driven to move and rotate 90° by the drive component, so that the fifth finger cylinder can switch between a vertically downward state and a horizontally forward state. Two fifth grippers that can open and close are connected to the fifth finger cylinder. When the fifth finger cylinder is in a horizontal forward position, the fifth finger cylinder is opposite to the first clamp, and the fifth jaw can grip the first assembly assembled on the first clamp; when the fifth finger cylinder is in a vertical downward position, the fifth finger cylinder is opposite to the second clamp, and the fifth jaw can insert the first assembly downward into the insertion part of the connecting ring. Alternatively, the first assembly mechanism may include a gripper assembly, an ejector assembly, and a pressing assembly. The gripper assembly includes a third displacement bracket, a twenty-third displacement driver that drives the third displacement bracket to move, a second rotary driver, a second rotary bracket, a twenty-fourth displacement driver, and a ninth finger cylinder. The second rotary driver is mounted on the third displacement bracket and is connected to the second rotary driver, and can be driven to rotate by the second rotary driver. The twenty-fourth displacement driver is mounted on the second rotary bracket. The ninth finger cylinder is connected to the twenty-fourth displacement driver and can be driven to move back and forth by the twenty-fourth displacement driver. The ninth finger cylinder is connected to two ninth grippers for clamping. The second rotary bracket can drive the ninth finger cylinder to rotate, so that the ninth finger cylinder can switch between a horizontal forward state and an oblique downward state. The ninth grippers on the ninth finger cylinder can clamp the first assembly assembled on the first fixture and insert one end of it into the insertion part of the connecting ring in an oblique state. The ejector assembly is used to hold the other end of the inserted first assembly that is raised. The pressing assembly is used to press the other end of the first assembly that is raised into the insertion part of the connecting ring.

5. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The second turntable is located on one side of the left and right sides of the conveying track. The transfer mechanism is used to transfer the second assembly on the second clamp to the transport area along the Y-axis. The transfer mechanism includes a rotary feeding assembly, a second feeding channel, a second discharging channel, and a fourth pushing assembly. The second feeding channel and the second discharging channel are located on both sides of the rotary feeding assembly. The rotary feeding assembly includes a third turntable that rotates around a horizontal axis. The third turntable has multiple transfer shells extending radially therefrom. The multiple transfer shells are arranged in a ring around the rotation axis of the third turntable. Each transfer shell has a material container inside, and the outer end of the transfer shell has an inlet and outlet for the material container. The inner end of the transfer shell has a third pushing port. The transfer shell can rotate to flip the second assembly it contains so that the insertion part of the connecting ring faces the conveying track. When the second clamp rotates with the second turntable to a position opposite to the transfer mechanism, the second feeding channel is positioned between the second clamp and the rotary feeding assembly. The fourth pushing component includes a first displacement driver, a second displacement bracket, a fourth pushing component, and a fifth pushing component. The second displacement bracket is connected to the first displacement driver and can be driven to move horizontally by the first displacement driver. The fourth and fifth pushing components are spaced apart on the second displacement bracket. Each second clamp on the second turntable forms a first central receiving area around the center of the second turntable. Each material transfer shell forms a second central receiving area around the center of the third turntable. The fourth pushing component is located in the first central receiving area and is used to push the second assembly assembled on the second clamp into the material receiving hopper. The fifth pushing component is located in the second central receiving area and is used to push the second assembly in the flipped material receiving hopper onto the second discharge channel.

6. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The foot pedal feeding mechanism includes a lifting conveyor, a conveyor belt, a fifth pushing component, and a fifth feeding channel. The conveyor belt is located on one side of the discharge port of the lifting conveyor. The fifth feeding channel and the fifth pushing component are located opposite each other on both sides of the end of the conveyor belt. The fifth pushing component includes a sixth pushing element and a fourth pushing cylinder that drives the sixth pushing element to move linearly back and forth. The fifth feeding channel includes an upper channel and a lower channel distributed vertically. The input end of the upper channel is used to receive the foot pedal pushed by the fifth pushing component. The output end of the upper channel is provided with a discharge port, which is opposite to the lower channel below. The distance between the discharge port and the lower channel is only enough to accommodate one foot pedal. The lower channel is located at the input end of the conveyor track. A forward / reverse detection area is provided between the upper channel and the end of the conveyor belt. The forward / reverse detection area is provided with a first lifting receiving assembly, a forward / reverse detector, and a flipping clamping assembly. The first lifting receiving assembly includes a lifting receiving plate and a fifth lifting cylinder. The lifting receiving plate is connected to the fifth lifting cylinder and can be driven to lift by the fifth lifting cylinder. The two sides of the lifting receiving plate are respectively connected to the input end of the upper channel and the end of the conveyor belt. The foot pedal pushed out from the conveyor belt enters the upper channel through the lifting receiving plate. The forward / reverse detector is used to detect the forward / reverse orientation of the foot pedal on the lifting receiving plate. The flipping clamping assembly includes an active rotary clamp and a driven rotary clamp located above the two sides of the lifting receiving plate. The active rotary clamp and the driven rotary clamp are arranged opposite to each other. The driven rotary clamp is connected to a second displacement driver, and the active rotary clamp is connected to a twentieth displacement driver. The first feeding assembly transports the foot pedals that fall on the lower channel to each foot pedal station in stages. The first feeding assembly includes a feeding bracket, a third displacement driver that drives the feeding bracket to move along the X-axis, and a first lifting driver that drives the feeding bracket to move up and down along the Z-axis. Both sides of the feeding bracket are provided with multiple lifting components arranged in the X-axis direction. The lifting components on both sides are arranged one-to-one opposite each other. The lifting components are provided with support grooves. The feeding bracket transports the foot pedals on the lower channel and each foot pedal station forward step by step through the support grooves. A push-button feeding mechanism is arranged around the periphery of the conveying track. This mechanism is located downstream of the second assembly mechanism, along the conveying direction of the foot pedal. There are two sets of push-button feeding mechanisms, distributed on the left and right sides of one of the primary foot pedal positions. These two sets are used to convey switch push buttons to both sides of the foot pedal position and mount them onto both ends of the foot pedal assembly. The push-button feeding mechanism includes a sixth vibrating feeding plate, a sixth feeding channel, a sixth pushing assembly, and a fourth loading assembly. The input end of the sixth feeding channel is connected to the output end of the sixth vibrating feeding plate. A fifth feeding seat is provided at the output end of the sixth feeding channel. The fifth feeding seat has a second pushing channel connected to the output end of the sixth feeding channel. One end of the second pushing channel has a fourth pushing port. The sixth pushing assembly includes a seventh pushing component and a fifth pushing cylinder that drives its movement. The seventh pushing component is located within the second pushing channel and has a... The fourth positioning groove corresponds to the drive rod of the switch push button. When the seventh pusher is in the initial position, the fourth positioning groove is connected to the outlet of the sixth feeding channel. The second pushing channel has fourth clearance openings on both sides. The fourth loading assembly includes a fourth displacement driver, a fourth displacement bracket, a first rotary driver, a first rotary bracket, a fifth displacement driver, and a sixth finger cylinder. The fourth displacement bracket is connected to the fourth displacement driver and can be driven to move by the fourth displacement driver. The first rotary driver is set on the fourth displacement bracket. The first rotary bracket is connected to the first rotary driver and can be driven to rotate by the first rotary driver. The fifth displacement driver is set on the first rotary bracket. The sixth finger cylinder is connected to the fifth displacement driver and can be driven to move forward or backward by the fifth displacement driver. The sixth finger cylinder is connected to two sixth grippers that can be opened and closed. The sixth grippers move and rotate to grab the switch push button and mount it onto the foot pedal assembly.

7. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The periphery of the conveying track is equipped with a punching mechanism, which is located upstream of the second assembly mechanism along the conveying direction of the foot pedal. The punching mechanism includes a left punching assembly for punching holes at the left end of the foot pedal and a right punching assembly for punching holes at the right end of the foot pedal. The left punching assembly and the right punching assembly are respectively arranged corresponding to two foot pedal stations. The left punching assembly includes a first right push plate located to the right of the foot pedal station, a sixth displacement actuator that drives the first right push plate to move along the Y-axis, a first left push plate located to the left of the foot pedal station, a seventh displacement actuator that drives the first left push plate to move along the Y-axis, a first punching part with a punch, a first driving block, and an eighth displacement actuator that drives the first driving block to move along the Y-axis. The first left push plate is provided with a first positioning block opposite to the foot pedal station, and the first positioning block is provided with a first clearance channel. The first punching part is located on one side of the first positioning block in the X-axis direction, and the punch is opposite to the first clearance channel. The first driving block and the first punching part are in contact via an inclined surface. The first driving block can push the first punching part to move along the X-axis. A second return spring is provided between the first punching part and the frame. The right-side punching assembly includes a second right push plate located to the right of the foot pedal station, a ninth displacement driver that drives the second right push plate to move along the Y-axis, a second left push plate located to the left of the foot pedal station, a tenth displacement driver that drives the second left push plate to move along the Y-axis, a second punching part with a punch, a second drive block, and an eleventh displacement driver that drives the second drive block to move along the Y-axis. The second right push plate is provided with a second positioning block opposite to the foot pedal station. The second positioning block is provided with a second clearance channel. The second punching part is located on one side of the second positioning block in the X-axis direction, and the punch is opposite to the second clearance channel. The second drive block and the second punching part are in contact through an inclined surface. The second drive block can push the second punching part to move along the X-axis. A third return spring is provided between the second punching part and the frame.

8. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, A riveting mechanism is provided around the periphery of the conveying track. The riveting mechanism is located downstream of the second assembly mechanism along the conveying direction of the foot pedals. The riveting mechanism includes a left riveting assembly and a right riveting assembly, which are respectively arranged corresponding to two foot pedal positions. The left riveting assembly includes a third right push plate located to the right of the foot pedal station, a twelfth displacement actuator that drives the third right push plate to move along the Y-axis, a left support base located to the left of the foot pedal station, a first pressure block located above the left support base, a second lifting actuator that drives the first pressure block to move up and down, a first limiting block for limiting the first pressure block, a thirteenth displacement actuator that drives the first limiting block to move, a first riveting head located below the left support base, and a third lifting actuator that drives the first riveting head to move up and down. The left support base has a fifth clearance opening for the first riveting head to pass upwards, a first abutment part for the left end of the foot pedal assembly to abut against, and a first limiting slot for the first limiting block to insert and limit. The right riveting assembly includes a third left push plate located on the left side of the foot pedal station, a fourteenth displacement driver that drives the third left push plate to move along the Y-axis, a right support seat located on the right side of the foot pedal station, a second pressure block located above the right support seat, a fourth lifting driver that drives the second pressure block to move up and down, a second limiting block for limiting the second pressure block, a fifteenth displacement driver that drives the second limiting block to move, a second riveting head located below the right support seat, and a fifth lifting driver that drives the second riveting head to move up and down. The right support seat is provided with a sixth clearance opening for the second riveting head to pass through upwards, and the right support seat is provided with a second abutment for the right end of the foot pedal assembly to abut against. The second pressure block is provided with a second limiting slot for the second limiting block to insert and limit.

9. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1, characterized in that, The second assembly mechanism includes a left-end assembly component and a right-end assembly component, which are respectively set with two foot pedal positions. The left-end assembly includes a first right-side pusher located to the right of the foot pedal station, a sixteenth displacement driver that drives the first right-side pusher to move along the Y-axis, a first left-side pusher located to the left of the foot pedal station, and a seventeenth displacement driver that drives the first left-side pusher to move along the Y-axis. A first receiving seat is provided in the first assembly area between the foot pedal station and the first left-side pusher. The first receiving seat is connected to and can be lifted by the sixth lifting driver. The first receiving seat has a first receiving groove for receiving the second assembly carried by the first conveying mechanism. The first left-side pusher includes a first movable plate corresponding to the annular portion of the connecting ring. The first movable plate has a protruding first pusher portion that pushes material into the annular portion of the connecting ring. The right-end assembly includes a second left pusher located to the left of the foot pedal station, an eighteenth displacement driver that drives the second left pusher to move along the Y-axis, a second right pusher located to the right of the foot pedal station, and a nineteenth displacement driver that drives the second right pusher to move along the Y-axis. A second receiving seat is provided in the second assembly area between the foot pedal station and the second right pusher. The second receiving seat is connected to the seventh lifting driver and can be driven to lift by the seventh lifting driver. The second receiving seat is provided with a second receiving groove for receiving the second assembly body transported by the second conveying mechanism. The second right pusher includes a second moving plate corresponding to the annular portion of the connecting ring. A second pusher portion protrudes from the second moving plate and pushes material into the annular portion of the connecting ring.

10. The automated assembly equipment for the telescopic ladder tread assembly according to claim 1 or 9, characterized in that, The first handling mechanism includes a fourth PPU robotic arm and a seventh finger cylinder. The seventh finger cylinder is connected to the fourth PPU robotic arm and can be driven by the fourth PPU robotic arm to move vertically and translate along the Y-axis. The seventh finger cylinder is connected to two seventh grippers that can open and close. The seventh grippers can grasp the second assembly in the handling area and place it in the first assembly area. The second conveying mechanism includes a rotary lifting drive and a rotary transfer rack. The rotary lifting drive and the rotary transfer rack are located above the conveying track. The rotary transfer rack is connected to the rotary lifting device and can be driven to lift and rotate around a vertical axis by the rotary lifting device. The rotary transfer rack includes at least one rotary arm. The outer end of the rotary arm is provided with a laterally extending flange. An eighth finger cylinder is mounted on the flange. Two opening and closing eighth jaws are connected to the eighth finger cylinder. The eighth jaws grip the second assembly in the conveying area and transport it to the second assembly area by rotating the rotary arm 180°.

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