Automatic switch assembly machine

Abstract

The present invention relates to an automatic switch assembly machine comprising a ring conveyor, a nut sheet loading station, a buckle foot loading station, a middle plate loading station, a screw loading and driving station, a screw tail flattening station, a base loading station, and a middle plate pin twisting station. Several carriers are spaced apart on the ring conveyor, each of which is used to carry a pair of nut sheets, a pair of buckle feet, and a middle plate. The assembly machine uses the ring conveyor to orderly transport the carriers to the various loading stations and processing stations, enabling automated loading and assembly of components such as nut sheets, buckle feet, middle plates, screws, and bases.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic production equipment, and in particular relates to an automatic switch assembly machine. Background Art

[0002] Switches are one of the commonly used accessories on equipment and instruments, and the demand is very huge. The switch assembly machine of this application is used to assemble product structures such as Figure 1-3 As shown, it includes: a base 100, a middle plate 200, a buckle foot 300, a screw 400 and a nut sheet 500. The base 100 is plugged into the middle plate 200. The base 100 has a "I"-shaped socket 110 on the outer periphery. The socket 110 has multiple, preferably four, sockets 110, and are symmetrically arranged on the left and right sides of the base 100. The left and right side plates of the middle plate 200 have pins 210 that can be inserted downward into the corresponding sockets. The lower end of the pin 210 has a plug 211 that passes through the socket. During installation, the plug 211 is twisted to make it misaligned with the "I"-shaped socket 110, thereby preventing the plug 211 from falling out of the "I"-shaped socket 110 upward. 10. The base 100 and the middle plate 200 are installed. The buckle feet 300 are distributed on the left and right sides of the base 100, and the buckle feet 300 on both sides are fastened to the middle plate 200 by the cooperation of screws 400 and nut plates 500. There are mounting holes 600 on the board surface of the middle plate 200, the upper ends of the buckle feet 300 and the nut plates 500. During installation, the screws 400 pass downward through the respective mounting holes 600 of the middle plate 200, the buckle feet 300 and the nut plates 500. The screws 400 and the nut plates 500 are threadedly matched. The upper ends of the buckle feet 300 are fastened between the nut plates 500 and the board surface of the middle plate 200. There are positioning holes 220 at the four corners of the board surface of the middle plate 200. The left and right side plates of the middle plate 200 have extension plates 230 below the mounting holes corresponding to the plate surfaces. The lower end of the screw 400 is also passed through the extension plate 230, and the tail end of the screw 400 passing through the extension plate 230 is flattened to form a pressure head 410.

[0003] In existing production processes, switch assembly mostly relies on manual labor. This is not only inefficient, but also difficult to guarantee product quality and results in high production costs. While some automated assembly equipment exists on the market, the unique structure of this switch makes existing automated machines inadequate for its assembly, making efficient and accurate automated assembly difficult. Therefore, there is an urgent need for an automated assembly machine suitable for this switch. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides a switch automatic assembly machine, which transports the carrier to each loading station and processing station in an orderly manner through a ring conveyor, thereby realizing the automatic loading and assembly of components such as nut plates, buckle feet, middle plates, screws and bases.

[0005] The technical solution of the present invention is: a switch automatic assembly machine, comprising a ring conveyor, and a nut sheet loading station, a buckle foot loading station, a middle plate loading station, a screw loading and driving station, a screw tail flattening station, a base loading station, and a middle plate pin twisting station. The ring conveyor is provided with a plurality of carriers at intervals, and the carriers are used to carry a pair of nut sheets, a pair of buckle feet and a middle plate.

[0006] The nut sheet loading station is used to automatically convey the nut sheet to the carrier; the buckle foot loading station is used to automatically convey the buckle foot to the carrier and place it on the nut sheet; the middle plate loading station is used to automatically convey the middle plate to the carrier and make the middle plate be located above a pair of buckle feet; the screw loading and driving station is used to drive the screws downward to form a middle plate-buckle foot combination when the mounting holes of the middle plate are connected with the mounting holes of the nut sheet and the buckle foot; the screw tail end flattening station can carry the middle plate-buck foot combination and press the tail ends of a pair of screws into pressure heads; the base loading station is used to automatically convey the base to the middle plate pin twisting station; the middle plate pin twisting station can carry the base and the middle plate-buck foot combination, and when the pins of the middle plate are inserted downward into the "I"-shaped socket of the base and the plug at the lower end passes through the socket, the plug can be twisted to make it misaligned with the socket, thereby realizing the assembly of the base and the middle plate-buck foot combination.

[0007] By adopting the above technical solution, the assembly machine transports the carrier to each loading station and processing station in an orderly manner through a ring conveyor, realizing the automated loading and assembly of components such as nut plates, buckle feet, middle plates, screws and bases.

[0008] Specifically, the nut sheet loading station, the buckle foot loading station, and the middle plate loading station are respectively responsible for accurately placing the corresponding components on the carrier, laying the foundation for the subsequent assembly steps. When the mounting holes of the middle plate are aligned with the mounting holes of the nut sheet and the buckle foot, the screw loading and driving station quickly drives the screws downward to form a stable middle plate-buckle foot combination. Subsequently, the screw tail end flattening station flattens the tail end of one pair of screws to form a pressure head, further enhancing the stability of the assembly. The base loading station automatically transports the base to the middle plate pin twisting station. When the pins of the middle plate are inserted downward into the "I"-shaped socket of the base, and the plug at the lower end passes through the socket, the middle plate pin twisting station can accurately twist the plug so that it is misaligned with the socket, thereby achieving a stable assembly of the base and the middle plate-buck foot combination.

[0009] In summary, the switch automatic assembly machine of the present invention significantly improves the assembly efficiency and accuracy of switch components through a highly automated assembly process, reduces labor costs, and enhances the competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A structural diagram of a product assembled in the background technology of the present invention;

[0011] Figure 2 Product breakdown diagram;

[0012] Figure 3 This is the pin structure diagram of the product;

[0013] Figure 4 is a structural diagram of a specific embodiment of the present invention;

[0014] Figure 5 A structural diagram of an annular conveyor according to a specific embodiment of the present invention;

[0015] Figure 6 A structural diagram of a carrier according to a specific embodiment of the present invention;

[0016] Figure 7 1 is a structural diagram of a carrier platform in a specific embodiment of the present invention;

[0017] Figure 8 It is a structural diagram of a nut sheet loading station and a buckle foot loading station in a specific embodiment of the present invention;

[0018] Figure 9 This is a structural diagram of a nut sheet loading platform in a specific embodiment of the present invention;

[0019] Figure 10 This is a structural diagram of a buckle foot loading platform in a specific embodiment of the present invention;

[0020] Figure 11 This is a structural diagram of a middle plate feeding station in a specific embodiment of the present invention;

[0021] Figure 12 This is a structural diagram of a middle plate pin shaping platform in a specific embodiment of the present invention;

[0022] Figure 13 This is a structural diagram of a screw loading and driving station in a specific embodiment of the present invention;

[0023] Figure 14 This is a structural diagram of a screw tail end flattening station in a specific embodiment of the present invention;

[0024] Figure 15 This is a structural diagram of the screw inner pressing block and the screw outer pressing block of the screw tail end flattening station in a specific embodiment of the present invention;

[0025] Figure 16This is a structural diagram of the base loading station, the middle plate pin twisting station, and the product discharging station in a specific embodiment of the present invention;

[0026] Figure 17 This is a structural diagram of a second lifting mechanism in a specific embodiment of the present invention;

[0027] Figure 18 This is a structural diagram of a middle plate pin twisting station in a specific embodiment of the present invention;

[0028] Figure 19 2 is a structural diagram of a clamping rod driving device in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] like Figure 4-19 As shown, the present invention provides an automatic switch assembly machine comprising a ring conveyor 1, a nut sheet loading station 2, a buckle foot loading station 3, a middle plate loading station 4, a screw loading and driving station 5, a screw tail flattening station 6, a base loading station 7, a middle plate pin twisting station 8, multiple inspection stations 13, and a product discharge station 14. An intelligent control system is used to control the coordinated operation of each workstation. The multiple inspection stations 13 include a nut sheet inspection station, a buckle foot inspection station, a middle plate inspection station, a middle plate-buckle foot combination inspection station, and a base inspection station. Each inspection station is equipped with advanced sensors and detection devices, such as visual sensors, that enable accurate component inspection and provide real-time feedback of the inspection results to the intelligent control system.

[0031] The circular conveyor 1 is a closed-loop conveying structure. Several carriers 9 are spaced apart on the circular conveyor 1. These carriers 9 perform periodic circular motion along the circular track of the circular conveyor 1. The circular conveyor 1 comprises a frame 105, a circular track 102 mounted on the frame, and a transmission belt 103 located within the track. The transmission belt 103 is driven by a drive motor to drive the carriers to circulate along the circular track 102. The carriers 9 are mounted on a trolley 104. A carrier seat 91 is screwed or integrally connected to the trolley 104. The trolley is equipped with rollers at the bottom that engage the transmission belt, ensuring smooth movement of the carriers on the circular conveyor. The trolley has a coupling seat connected to one end of the transmission belt. The coupling seat is screwed or clamped to the transmission belt 103. The operating principle of the circular conveyor is that the transmission belt 103 is driven by the drive motor, which in turn drives the carriers 9 mounted on the trolley 104 to perform periodic circular motion along the circular track 102.

[0032] The carrier 9 is used to carry a pair of nut pieces, a pair of buckle feet and a middle plate. The carrier 9 includes a carrier 91, a bearing column 92 provided on the carrier, and a pair of opposite bearing platforms 93, wherein the bearing column 92 is used to support the middle plate. The bearing column 92 is provided in plurality and has a positioning head 921 inserted into the positioning hole on the middle plate. The top of the positioning head 921 is conical. The opposite ends of the pair of bearing platforms 93 have a support 931 for supporting the nut piece and the buckle feet. The support 931 has a through hole for screws to pass through. 9311, the through-holes of a pair of support platforms 931 are open on opposite sides, used to make the screws slide out of the through-holes 9311, and the support platforms are provided with recesses for accommodating the nut pieces and the upper ends of the buckle feet. The opposite sides of the pair of recesses are open on opposite sides, used to make the nut pieces and the upper ends of the buckle feet slide out of the recesses. The pair of support platforms have two states: sliding inwards to move closer and sliding outwards to move away. When the pair of support platforms 93 are in the close state, the mounting holes of the nut pieces and the buckle feet driven by the support platforms 931 are connected to the mounting holes of the middle plate, and a The support platform 931 protrudes from the bearing platform 93 in the opposite direction; a follower actuator 94 is slidably provided on the carrier 91, and the sliding directions of the follower actuator 94 and the bearing platform 93 are perpendicular to each other. The follower actuator and the bearing platform and the carrier are respectively slidably matched through corresponding guide rails and guide grooves. The follower actuator 94 is provided with a push surface 941 for receiving external force. When the push rod 101 of the telescopic actuator 10 extends and abuts against the push surface 941, the follower actuator 94 is pushed to One end slides and displaces; after the push rod 101 of the telescopic actuator 10 disengages from the pushed surface 941 of the follower actuator 94, the elastic reset member provided on the carrier 91 acts on the follower actuator 94 and drives it to slide and reset to the other end. The elastic reset member is a spring, a tension spring, etc., one end of which is connected to the carrier and the other end is connected to the follower actuator, or the elastic reset member directly acts on a pair of bearing platforms, and the follower actuator 94 drives a pair of bearing platforms 93 to slide closer or away through the steering mechanism 12. The steering mechanism includes an inclined groove 121 and a guide column 122, or other steerable structure. The inclined groove 121 is directly or indirectly provided on the follower actuator 94 or the support platform 93. The guide column 122 is correspondingly linked with the support platform 93 or the follower actuator 94. The guide column 122 is inserted into the inclined groove 121, and the inclined directions of the pair of inclined grooves 121 are opposite. When the follower actuator 94 slides, the pair of guide columns 122 abut against the inner wall of the corresponding inclined groove 121, thereby driving the pair of support platforms 93 to slide closer or farther. The guide column can be directly or indirectly provided on the support platform. When there is only one follower actuator, a pair of inclined grooves are provided on one follower actuator. When there are two follower actuators, a inclined groove is provided on each follower actuator. The telescopic actuator 10 is any one of a pneumatic cylinder, an electric push rod or a hydraulic cylinder.During operation, the nut plate and the buckle foot are first placed on the support platforms 931 of the pair of support platforms 93, supported by the support platforms. The middle plate is then placed on the support columns 92 and positioned by inserting the positioning heads 921 into the positioning holes of the middle plate to ensure accurate positioning of the middle plate. At this point, the pair of support platforms 93 are in a state of sliding outward and away. When the nut plate and the buckle foot need to be installed on the middle plate, the push rod 101 of the telescopic actuator 10 extends and abuts against the push surface 941 of the follower actuator 94, pushing the follower actuator 94 to slide toward one end. The sliding of the follower actuator 94, through the action of the steering mechanism 12, causes the pair of guide posts 122 to slide in the inclined slots 121, thereby driving the pair of support platforms 93 to slide inward and toward each other. During this process of merging, the mounting holes of the nut plate and the buckle foot, driven by the support platforms 931, align with the mounting holes of the middle plate. At this point, the screws can be inserted through the through holes 9311 and tightened, completing the installation of the nut plate and the buckle foot to the middle plate. When push rod 101 of telescopic actuator 10 disengages push surface 941 of follower actuator 94, an elastic reset member on carrier 91 acts on follower actuator 94, forcing it to slide back toward the other end. This reset of follower actuator 94 is also achieved through the action of steering mechanism 12, causing the pair of support platforms 93 to slide outward and away, returning to their initial state, ready for the next installation operation. The carrier's ingenious structural design enables automatic centering of the nut plate, buckle feet, and center plate, significantly improving installation efficiency and accuracy.

[0033] The nut sheet loading station 2 is used to automatically convey the nut sheets to the carrier 9. There are two nut sheet loading stations 2, which are used to respectively load the nut sheets on both sides onto a pair of support platforms 931 of the support platform 93. Each nut sheet loading station 2 includes a nut sheet material bin 21, a nut sheet feed rail 22 and a nut sheet clamp 23. The nut sheet feed rail 22 is used to realize the sequential conveying of a single nut sheet, and a nut sheet loading platform 221 is provided downstream of the nut sheet feed rail 22. The nut sheet clamp 23 is used to clamp the nut sheet on the nut sheet loading platform 221 onto the support platform 931 and align the mounting hole of the nut sheet with the through hole of the support platform 931. 9311 pairs, after the two nut sheet loading stations 2 have completed loading, the nut sheet detection station detects whether the nut sheet on the carrier is correctly placed; in addition, the nut sheet loading station further includes a sensor for detecting whether the nut sheet exists. The sensor is set at the nut sheet loading platform. Before the nut sheet clamp performs the clamping action, the sensor can confirm whether the nut sheet exists on the nut sheet loading platform. If the sensor detects the presence of the nut sheet, the nut sheet clamp performs the clamping action; if the sensor does not detect the presence of the nut sheet, the nut sheet loading station will trigger an alarm signal and suspend work to remind the operator to check or replenish the nut sheet. After completing a clamping action, the nut sheet clamp will automatically return to its initial position and wait for the next clamping instruction. During operation, the nut pieces are first stored in the nut piece silo 21, and then the nut piece conveyor rail 22 is used to realize the sequential conveyance of individual nut pieces. When the nut pieces are conveyed to the nut piece loading platform 221, the sensor located at this position will detect whether the nut piece exists. If the sensor detects the presence of the nut piece, the nut piece clamp 23 will immediately perform the clamping action, clamping the nut piece from the loading platform and accurately placing it on the support platform 931, while ensuring that the mounting hole of the nut piece is aligned with the through hole 9311 of the support platform. After the two nut piece loading stations 2 complete the loading action in sequence, the nut piece inspection station will inspect the nut pieces on the carrier to ensure that each nut piece is correctly placed.

[0034] The buckle foot loading station 3 is used to automatically convey the buckle feet to the carrier 9 and place them on the nut sheet. The buckle foot loading station 3 is provided with two, which are used to respectively load the buckle feet on both sides onto a pair of support platforms 931 of the supporting platform 93. Each buckle foot loading station 3 includes a buckle foot hopper 31, a buckle foot feeding rail 32 and a buckle foot clamp 33. The buckle foot feeding rail 32 is used to realize the sequential conveyance of a single buckle foot, and a buckle foot loading platform 321 is provided downstream of the buckle foot feeding rail 32. The buckle foot clamp 33 is used to clamp the buckle feet on the buckle foot loading platform 321 to the support platform 931 and align the mounting holes of the buckle feet with the nut sheet. The mounting holes are connected; after the two foot-binding loading stations have completed loading, the foot-binding detection station detects whether the foot-binding on the carrier is correctly placed; in addition, the foot-binding loading station further includes a sensor for detecting whether the foot-binding exists, and the sensor is arranged at the foot-binding loading platform. Before the foot-binding clamp performs the clamping action, the sensor can be used to confirm whether the foot-binding exists on the foot-binding loading platform. If the sensor detects the existence of the foot-binding, the foot-binding clamp performs the clamping action; if the sensor does not detect the existence of the foot-binding, the foot-binding loading station will trigger an alarm signal and suspend work to remind the operator to check or replenish the foot-binding. After completing a clamping action, the foot-binding clamp will automatically return to its initial position and wait for the next clamping instruction. The above-mentioned clamp can perform lifting and horizontal movements to realize the transportation of materials. During operation, the pins are first placed in the pin hopper 31, then transported individually by the pin feed track 32. When the pins reach the pin loading platform 321, a sensor detects their presence, and the pin clamp 33 begins to operate, clamping the pins from the pin loading platform 321 onto the support platform 931 and placing them above the nut plate, ensuring that the mounting holes of the pins and the mounting holes of the nut plate are aligned. After the two pin loading stations complete the loading process, the pin inspection station inspects the pins on the carrier to ensure that each pin is correctly placed.

[0035] The two nut sheet loading stations and the two buckle foot loading stations are arranged side by side.

[0036] The middle plate feeding station 4 is used to automatically convey the middle plate to the carrier 9 and make the middle plate be located above a pair of buckle feet. The middle plate feeding station 4 includes a material bin, a middle plate feeding rail 41, a middle plate pin shaping platform 42 and a middle plate clamping mechanism 43. The middle plate feeding rail 41 is used to realize the sequential conveying of a single middle plate, and a first jacking mechanism 411 for lifting the middle plate is provided downstream of the middle plate feeding rail 41. The first jacking mechanism and the second jacking mechanism have the same structure. The middle plate pin shaping platform 42 includes an inner pin pressure block 421 and an outer pin pressure block 422 on both sides. The pins on both sides of the middle plate are respectively inserted downward between the corresponding inner pin pressure block 421 and the outer pin pressure block 422, and a pair of outer pin pressure blocks 422 slide inward to cooperate with the inner pin pressure block 421, thereby flattening the pins on both sides. 22 is driven to slide by a pneumatic cylinder, an electric cylinder, etc.; the middle plate clamp mechanism 43 includes a first middle plate clamp 431 and a second middle plate clamp 432, the first middle plate clamp 431 is used to clamp the middle plate on the first jacking mechanism 411 to the middle plate pin shaping platform 42, and the second middle plate clamp 432 is used to clamp the middle plate on the middle plate pin shaping platform 42 to the carrier 9; the chuck of the first middle plate clamp or the second middle plate clamp can be rotated 90°, or the chucks of both middle plate clamps can be rotated 90°. There are character markings on the surface of the middle plate for easy identification by the middle plate detection station. When the middle plate detection station senses that the position of the middle plate is different, specifically, when the position of the character marking on the surface of the middle plate is incorrect, the chuck of the middle plate clamp drives the clamped middle plate to rotate 90° to adjust the position, such as turning the character marking in the upper left corner of the middle plate to the upper right corner. The above-mentioned middle plate clamp can perform lifting and translation actions to realize material transportation. The middle plate clamp mechanism 43 includes a first slide 433 that slides along the X-axis. The first middle plate clamp and the second middle plate clamp are arranged on the first slide. The first slide drives the two middle plate clamps to slide together. The first slide is driven to slide by a cylinder, an electric cylinder, etc. During the working process, first, the middle plate is sent into the middle plate conveyor rail through the hopper. The rail ensures that only one middle plate is conveyed at a time. When the middle plate reaches the downstream of the conveyor rail, the first lifting mechanism lifts it up to prepare for the next step of shaping; next, the first middle plate clamp sends the middle plate into the middle plate pin shaping table, where the pins on both sides of the middle plate are respectively inserted between the inner pin pressure block and the two outer pin pressure blocks. Driven by the cylinder or electric cylinder, the two outer pin pressure blocks slide inward at the same time and cooperate with the inner pin pressure block to flatten the pins on both sides of the middle plate; at the same time, the second middle plate clamp sends the shaped middle plate onto the carrier. The design of the clamp allows it to rotate 90 degrees so that it can be adjusted when the middle plate position is abnormal.

[0037] The screw loading and driving station 5 is used to drive the screws downward to form a middle plate-buckle foot combination when the mounting holes of the middle plate are connected with the mounting holes of the nut plate and the buckle foot. The screw loading and driving station 5 includes a pair of automatic screw driving machines 51 and a telescopic actuator 10. When the carrier 9 is displaced on the circular conveyor 1 and corresponds to the screw loading and driving station 5, the push rod 101 of the telescopic actuator 10 is extended to abut against the pushed surface 941 to push the follower actuator 94 to slide toward one end, so that a pair of supporting platforms 93 slide inward and close together. At this time, a pair of screws are driven downward by a pair of automatic screw driving machines 51. The automatic screw driving machine 51 is an existing design, which has a rotating rod to drive the screws to rotate and drive them in. During operation, the push rod 101 of the telescopic actuator 10 extends under the driving force and accurately rests against the push surface 941 of the follower actuator 94. This action triggers the sliding mechanism of the follower actuator 94, causing it to slide toward one end, thereby driving the pair of support platforms 93 to slide inward and closer together. At this time, a pair of automatic screw drivers 51 are ready, each aligned with the mounting hole in the middle plate. As the screw drivers start, the rotating rod begins to rotate, driving the screw along the direction of the mounting hole and driving it in. Once the screw is driven in, the push rod 101 of the telescopic actuator 10 retracts, and the return spring immediately activates, driving the follower actuator 94 back to its original position. This action causes the pair of support platforms 93 to slide outward and apart.

[0038] The screw tail end flattening station 6 can carry the middle plate-button foot combination and press the tail ends of a pair of screws into a pressure head. The screw tail end flattening station also has a bearing column for supporting the middle plate. The screw tail end flattening station 6 includes a screw inner pressure block 61 and a screw outer pressure block 62 located on both sides. The tail ends of a pair of screws are respectively inserted downward between the screw inner pressure block 61 and the two screw outer pressure blocks 62, and the pair of screw outer pressure blocks 62 slide inward to cooperate with the screw inner pressure block 61, thereby flattening the tail ends of a pair of screws. The screw outer pressure blocks 62 are pressed by a cylinder or Driven by the electric cylinder; the screw tail end flattening station 6 is also equipped with a fixture conveying mechanism 63, which includes a third middle plate fixture 631 and a fourth middle plate fixture 632. The third middle plate fixture 631 clamps the middle plate-buckle foot combination on the carrier 9 to the screw tail end flattening station 6, while the fourth middle plate fixture 632 clamps the middle plate-buckle foot combination on the screw tail end flattening station 6 to the carrier 9. In addition to lifting along the Z axis, the above-mentioned middle plate fixture can also perform X-axis and Y-axis sliding movements to realize material transportation. The fixture conveying mechanism 63 includes a second slide 633 that slides along the X axis. The third middle plate fixture and the fourth middle plate fixture are set on the second slide. The second slide drives the two middle plate fixtures to slide along the X axis together. The second slide is driven to slide by a cylinder, an electric cylinder, etc., and the two middle plate fixtures perform independent Y-axis sliding. During operation, the carrier 9 drives the middle plate-buckle foot combination to be transported, and the third middle plate clamp 631 of the clamp conveying mechanism 1 clamps the middle plate-buckle foot combination on the carrier 9, and then slides along the X-axis to correspond to the screw tail end flattening station 6, and then slides along the Y-axis to transport it to the top of the screw tail end flattening station 6. In the screw tail end flattening station 6, a pair of screw tail ends are inserted between the screw inner pressure block 61 and the two screw outer pressure blocks 62, and then the screw outer pressure blocks 62 slide inward under the drive of the cylinder or electric cylinder, and cooperate with the screw inner pressure block 61 to flatten the screw tail end; the middle plate-buckle foot combination with the screw tail end flattened is clamped by the fourth middle plate clamp 632 and slid back along the Y-axis, and then transported back to the carrier 9 by sliding along the X-axis, completing the entire flattening process, and then the middle plate and buckle foot combination detection station is used to determine whether the middle plate and buckle foot are assembled.

[0039] The base loading station 7 is used to automatically convey the base to the middle plate pin twisting station 8. The base loading station 7 includes a base feed rail 71 and a base clamp 72. The base feed rail 71 is used to realize the sequential conveyance of individual bases, and a base loading platform 711 is provided downstream of the middle plate feed rail 41. The base clamp 72 is used to clamp the base on the base loading platform 711 and convey it to the middle plate pin twisting station 8. During operation, the base loading station 7 realizes the sequential conveyance of individual bases through the base feed rail 71. The base loading platform 711 receives the base conveyed by the base feed rail 71. Subsequently, the base clamp 72, under the action of a driving device such as a pneumatic cylinder, an electric cylinder or a servo motor, accurately clamps the base on the base loading platform 711 and conveys it to the middle plate pin twisting station 8.

[0040] The middle plate pin twisting station 8 is also equipped with a second clamp conveying mechanism 84, which includes a conveying rail 841, a fifth middle plate clamp 842 and a sixth middle plate clamp 843. The fifth middle plate clamp 842 clamps the middle plate-button foot combination on the carrier 9 to the upstream of the conveying rail 841. The conveying rail 841 is used to realize the sequential conveying of a single middle plate-button foot combination, and there is a clamp at the downstream of the conveying rail 841 for lifting the middle plate-button foot combination. The second jacking mechanism 844 includes a plurality of jacking columns 8441 located on both sides of the conveying rail 841. The middle plate is supported by the jacking columns 8441, and the upper end of the jacking column 8441 has a positioning head that can be inserted into the positioning hole of the middle plate. The jacking columns 8441 are driven up and down by the lifting mechanism 8442 (cylinder or electric cylinder, etc.), and the middle plate-buckle foot combination on the second jacking mechanism 844 is clamped and sent to the middle plate pin twisting station 8 by the sixth middle plate clamp 843. The above-mentioned middle plate clamp can perform lifting and translation movements to realize the transportation of materials. First, the fifth middle plate clamp 842 clamps the middle plate-buckle foot combination from the carrier 9 and transports it to the upstream position of the conveying rail 841. Subsequently, the middle plate-buckle foot combination is transported one by one to the downstream position on the conveying rail 841. When the middle plate-pin assembly reaches the downstream of the conveyor rail 841, the second lifting mechanism 844 is activated, and the multiple lifting columns 8441 on both sides of it rise under the drive of the lifting mechanism. The positioning heads at the upper ends of the lifting columns 8441 insert into the positioning holes of the middle plate, thereby firmly supporting the middle plate-pin assembly. Next, the sixth middle plate clamp 843 clamps the middle plate-pin assembly from the second lifting mechanism 844 and transports it to the middle plate pin twisting station 8, where it is inserted into the base. Specifically, the middle plate pins are inserted downward into the "I"-shaped sockets of the base, and the plugs at the lower ends are inserted out of the sockets.

[0041] The middle plate pin twisting station 8 can carry the base and the middle plate-buckle pin combination, and when the pins of the middle plate are inserted downward into the "I"-shaped sockets of the base and the plugs at the lower ends are passed out of the sockets, the plugs can be twisted to make them misaligned with the sockets, thereby realizing the assembly of the base and the middle plate-buckle pin combination. The middle plate pin twisting station 8 includes a processing table 81, a plurality of clamping rods 82 for clamping the middle plate pins, and a clamping rod driving device 83 for driving the plurality of clamping rods 82 to rotate synchronously. The processing table 81 has a positioning cavity 811 for accommodating the base. The upper end of the clamping rod 82 extends into the positioning cavity 811 and has a clamping hole 821 for inserting the lower end of the pin plug. The clamping rod driving device 83 includes a driving gear 831, two side racks 832 driven by the driving gear 831, and a driving motor 833 that drives the driving gear 831 to rotate forward and backward. Each clamping rod 82 is provided with a transmission gear 822. The clamping rods 82 on both sides are respectively engaged with the two side racks 832 through their respective transmission gears 822. First, the base is placed in the positioning cavity 811 of the processing table 81, and then the middle plate-pin combination is centered and placed on the base to ensure that the middle plate pins are accurately inserted downward into the "I"-shaped sockets of the base. As the lower end of the pin fully exits the socket, the clamping hole 821 on the clamping rod 82 will appropriately clamp the lower end of the plug. At this point, the drive motor 833 is activated, driving the driving gear 831 in either forward or reverse rotation. The rotation of the driving gear 831 further drives the racks 832 on both sides to move in the opposite direction. Because the clamping rods 82 on either side engage with the racks 832 on either side via their respective transmission gears 822, the movement of the racks 832 drives the clamping rods 82 to rotate, thereby twisting the plug. When the plug is twisted to a position misaligned with the socket, the base and the mid-plate-pin combination are assembled.

[0042] The inspection station 13 is used to inspect the products; the product discharging station 14 is used to discharge the products assembled by the middle plate pin twisting station 8. The product discharging station 14 includes a seventh middle plate clamp 141 and a discharging rail 142. The seventh middle plate clamp 141 clamps the assembled products on the pin twisting station 8 and sends them to the discharging rail 142. The sixth middle plate clamp 843 and the seventh middle plate clamp 141 are arranged on the third slide 15. The third slide 15 drives the two middle plate clamps to slide along the X-axis together. The third slide is driven to slide by a pneumatic cylinder, an electric cylinder, etc.

[0043] The working principle of the switch automatic assembly machine of the present invention:

[0044] When the carrier passes through the first nut sheet loading station, the first nut sheet is loaded onto one of the carrier platforms, and the mounting holes of the nut sheet are aligned with the through holes of the support platform; then the carrier continues to be transported through the second nut sheet loading station, and the second nut sheet is loaded onto the other carrier platform.

[0045] Then, when the carrier passes through the first buckle foot loading station, the first buckle foot is loaded onto one of the carrier platforms and placed on the nut plate, with the mounting holes of the two aligned. Then, when the carrier continues to be transported and passes through the second buckle foot loading station, the second buckle foot is loaded onto the other carrier platform and placed on the nut plate, with the mounting holes of the two aligned.

[0046] Then the carrier passes through the middle plate feeding station, which feeds the shaped middle plate onto the carrier and places it above the buckle feet;

[0047] Then the carrier passes through the screw feeding and driving station, and the push rod of the telescopic actuator extends to abut the push surface of the follower actuator, thereby driving a pair of carrier platforms to slide inward and close together, so that the mounting holes of the nut plates and buckle feet on them are connected with the mounting holes of the middle plate, and a screw threading channel is formed. At this time, a pair of automatic screw driving machines respectively drive the screws downward into the screw threading channels on both sides to form a middle plate-buckle foot combination;

[0048] Then the carrier passes through the screw tail end flattening station, and the middle plate-buckle foot combination is first sent to the screw tail end flattening station by the third middle plate clamp of the clamp conveying mechanism 1 to flatten the screw tail end. Then, the flattened middle plate-buckle foot combination is sent back to the carrier by the fourth middle plate clamp. The carrier continues to be transported on the ring conveyor, and then passes through a pair of automatic screw loosening machines to loosen the screws.

[0049] The base is clamped and sent to the processing table of the middle plate pin twisting station by the base loading station; then the middle plate-buckle foot combination on the carrier is transported to the middle plate pin twisting station by the second clamp conveying mechanism and inserted into the base. Specifically, the pin of the middle plate is inserted downward into the "I"-shaped socket of the base, and the lower end of the plug is also inserted into the clamping hole of the clamping rod. Then, the clamping rod driving device drives multiple clamping rods to rotate together, so that the clamping rod drives the plug to twist and dislocate the socket, thereby realizing the assembly of the base and the middle plate-buckle foot combination.

[0050] Finally, the seventh middle plate clamp clamps the assembled product and sends it to the discharge rail to realize the discharge of the product.

[0051] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "coupled," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

Claims

1. A switch automatic assembly machine, characterized by: It comprises a ring conveyor (1), a nut sheet loading station (2), a buckle foot loading station (3), a middle plate loading station (4), a screw loading station (5), a screw tail end flattening station (6), a base loading station (7), and a middle plate pin twisting station (8), wherein a plurality of carriers (9) are arranged at intervals on the ring conveyor (1), and the carriers (9) are used to carry a pair of nut sheets, a pair of buckle feet and a middle plate; The nut sheet loading station (2) is used to automatically convey the nut sheet to the carrier (9); the buckle foot loading station (3) is used to automatically convey the buckle foot to the carrier (9) and place it on the nut sheet; the middle plate loading station (4) is used to automatically convey the middle plate to the carrier (9) and place the middle plate above a pair of buckle feet; the screw loading station (5) is used to drive the screw downward to form a middle plate-buckle foot combination when the mounting hole of the middle plate is connected with the mounting holes of the nut sheet and the buckle foot; the screw The tail end flattening station (6) can carry the middle plate-buckle foot combination and press the tail ends of a pair of screws therein into pressure heads; the base loading station (7) is used to automatically convey the base to the middle plate pin twisting station (8); the middle plate pin twisting station (8) can carry the base and the middle plate-buckle foot combination, and when the pins of the middle plate are inserted downward into the "I"-shaped sockets of the base and the plug at the lower end passes out of the socket, the plug can be twisted to make it misaligned with the socket, thereby realizing the assembly of the base and the middle plate-buckle foot combination; The carrier (9) includes a carrier (91), a bearing column (92) arranged on the carrier, and a pair of opposed bearing platforms (93), wherein the bearing column (92) is used to support the middle plate, and the opposite ends of the pair of bearing platforms (93) are provided with a support platform (931) for supporting the nut plate and the buckle foot, and the support platform (931) has a through hole (9311) for screws to pass through, and the opposite sides of the through holes of the pair of support platforms (931) are open structures for allowing the screws to slide out of the through holes (9311), and the pair of bearing platforms have two states of sliding inwards and sliding outwards. When the pair of bearing platforms (93) are in the close state, the mounting holes of the nut plate and the buckle foot driven by the support platform (931) are connected to the mounting holes of the middle plate; A follower actuator (94) is slidably provided on the carrier (91), and the follower actuator (94) is provided with a push surface (941) for receiving external force. When the push rod (101) of the telescopic actuator (10) extends and abuts against the push surface (941), the follower actuator (94) is pushed to slide toward one end; after the push rod (101) of the telescopic actuator (10) is separated from the push surface (941) of the follower actuator (94), the elastic reset member provided on the carrier (91) acts on the follower actuator (94) and drives it to slide and reset toward the other end. The follower actuator (94) drives a pair of carrier platforms (93) to slide closer or farther away through the steering mechanism (12).

2. The switch automatic assembly machine according to claim 1, characterized in that: The steering mechanism (12) includes an inclined groove (121) and a guide column (122). The inclined groove (121) is provided on the follower actuator (94) or the bearing platform (93). The guide column (122) is correspondingly linked with the bearing platform (93) or the follower actuator (94). The guide column (122) is inserted into the inclined groove (121), and the inclined directions of the pair of inclined grooves (121) are opposite. When the follower actuator (94) slides, the pair of guide columns (122) abut against the inner walls of the corresponding inclined grooves (121), thereby driving the pair of bearing platforms (93) to slide closer or farther away.

3. The switch automatic assembly machine according to claim 1, characterized in that: The nut sheet loading station (2) is provided with two, and is used for loading the nut sheets on both sides onto the support platform (931) of a pair of supporting platforms (93), respectively. Each nut sheet loading station (2) comprises a nut sheet material bin (21), a nut sheet feeding rail (22) and a nut sheet clamp (23). The nut sheet feeding rail (22) is used to realize the sequential conveyance of a single nut sheet, and a nut sheet loading platform (221) is provided downstream of the nut sheet feeding rail (22). The nut sheet clamp (23) is used to clamp the nut sheet on the nut sheet loading platform (221) and feed it onto the support platform (931), and to align the mounting hole of the nut sheet with the through hole (9311) of the support platform (931); There are two buckle foot loading stations (3) for loading the buckle feet on both sides onto the support platform (931) of a pair of supporting platforms (93) respectively. Each buckle foot loading station (3) includes a buckle foot material bin (31), a buckle foot feeding rail (32) and a buckle foot clamp (33). The buckle foot feeding rail (32) is used to realize the sequential conveyance of individual buckle feet, and a buckle foot loading platform (321) is provided downstream of the buckle foot feeding rail (32). The buckle foot clamp (33) is used to feed the buckle feet on the buckle foot loading platform (321) onto the support platform (931) and to align the mounting holes of the buckle feet with the mounting holes of the nut sheets.

4. The switch automatic assembly machine according to claim 1, characterized in that: The middle plate feeding station (4) includes a middle plate feeding rail (41), a middle plate pin shaping platform (42) and a middle plate clamping mechanism (43), wherein the middle plate feeding rail (41) is used to realize the sequential feeding of a single middle plate, and a first lifting mechanism (411) for lifting the middle plate is provided downstream of the middle plate feeding rail (41), and the middle plate pin shaping platform (42) includes a pin inner pressure block (421) and a pin outer pressure block (422) located on both sides, wherein the pins on both sides of the middle plate are respectively inserted downward between the corresponding pin inner pressure block (421) and the pin outer pressure block (422), and a pair of pin outer pressure blocks (422) slide inward to engage with the pins. The inner pressure block (421) cooperates to flatten the pins on both sides; the middle plate clamp mechanism (43) includes a first middle plate clamp (431) and a second middle plate clamp (432), the first middle plate clamp (431) is used to clamp the middle plate on the first jacking mechanism (411) to the middle plate pin shaping platform (42), and the second middle plate clamp (432) is used to clamp the middle plate on the middle plate pin shaping platform (42) to the carrier (9); and the clamping head of the middle plate clamp is a 90° rotatable structure. When the middle plate detection station senses that the position of the middle plate is different, the clamping head of the middle plate clamp drives the clamped middle plate to rotate 90° to adjust the position.

5. The switch automatic assembly machine according to claim 1, characterized in that: The screw feeding and driving station (5) includes a pair of automatic screw driving machines (51) and a telescopic actuator (10). When the carrier (9) is displaced on the circular conveyor (1) and corresponds to the screw feeding and driving station (5), the push rod of the telescopic actuator (10) extends and abuts against the pushed surface (941) to push the follower actuator (94) to slide toward one end, so that a pair of supporting platforms (93) slide inward and approach each other. At this time, a pair of screws are driven downward by the pair of automatic screw driving machines (51).

6. The switch automatic assembly machine according to claim 1, characterized in that: The screw tail end flattening station (6) includes a screw inner pressure block (61) and screw outer pressure blocks (62) located on both sides, and a pair of screw tail ends are respectively inserted downward between the screw inner pressure block (61) and the two screw outer pressure blocks (62), and the pair of screw outer pressure blocks (62) slide inward to cooperate with the screw inner pressure block (61), thereby flattening the pair of screw tail ends; the screw tail end flattening station (6) is also equipped with a clamp conveying mechanism (63), and the clamp conveying mechanism (63) includes a third middle plate clamp (631) and a fourth middle plate clamp (632), and the third middle plate clamp (631) clamps the middle plate-buckle foot combination on the carrier (9) to the screw tail end flattening station (6), and at the same time, the fourth middle plate clamp (632) clamps the middle plate-buckle foot combination on the screw tail end flattening station (6) to the carrier (9).

7. The switch automatic assembly machine according to claim 1, characterized in that: The middle plate pin twisting station (8) comprises a processing table (81), a plurality of clamping rods (82) for clamping the middle plate pins, and a clamping rod driving device (83) for driving the plurality of clamping rods (82) to rotate synchronously. The processing table (81) has a positioning cavity (811) for accommodating a base. The upper end of the clamping rod (82) extends into the positioning cavity (811) and has a clamping hole (821) for inserting the lower end of the plug of the pin. The clamping rod driving device (83) comprises a driving gear (831), racks (832) on both sides driven by the driving gear (831), and a driving motor (833) for driving the driving gear (831) to rotate forward and reverse. Each clamping rod (82) is provided with a transmission gear (822). The clamping rods (82) on both sides are respectively engaged with the racks (832) on both sides through their respective transmission gears (822).

8. The switch automatic assembly machine according to claim 1, characterized in that: The middle plate pin twisting station (8) is also equipped with a second clamp conveying mechanism (84), which includes a conveying rail (841), a fifth middle plate clamp (842) and a sixth middle plate clamp (843). The fifth middle plate clamp (842) clamps the middle plate-pin combination on the carrier (9) and conveys it to the upstream of the conveying rail (841). The conveying rail (841) is used to realize the sequential conveying of a single middle plate-pin combination, and the conveying rail (841) is used to convey the middle plate-pin combination to the upper stream of the conveying rail (841). ) is provided downstream of the conveying rail (841) with a second lifting mechanism (844) for lifting the middle plate-buckle foot combination, the second lifting mechanism (844) includes a plurality of lifting columns (8441) located on both sides of the conveying rail (841), the middle plate is supported by the lifting columns (8441), the lifting columns (8441) are driven up and down by the lifting mechanism (8442), and the middle plate-buckle foot combination on the second lifting mechanism (844) is clamped and sent to the middle plate pin twisting station (8) by the sixth middle plate clamp (843).

9. The switch automatic assembly machine according to claim 1, characterized in that: It comprises a plurality of inspection stations (13) and a product discharging station (14), wherein the inspection station (13) is used to inspect the products; the product discharging station (14) is used to discharge the products assembled by the middle plate pin twisting station (8); The ring conveyor (1), nut sheet loading station (2), buckle foot loading station (3), middle plate loading station (4), screw loading and driving station (5), screw tail end flattening station (6), base loading station (7), middle plate pin twisting station (8), inspection station (13), and product discharging station (14) are all connected to an intelligent control system, and the intelligent control system is used to control the coordinated work of each workstation.

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