A device for automatically embedding profiled bullets

Abstract

The utility model discloses a device of automatic embedding special-shaped shell, related to charger assembly technical field, solves the problem of low efficiency, poor precision and potential safety hazard of manual assembly. The device comprises a rack, a supply assembly, a jig base, an embedding assembly and a bending assembly. The supply assembly feeds the material belt through a feeding mechanism, and the block structure prevents the material belt from being raised. The bending assembly is assembled in the bending station of the supply chute. The bending cylinder drives the bending push block to drive the bending push rod to slide along the inclined guide hole to bend the shell. The block lever drives the bending block to position, and the cutting knife cuts and separates the shell from the material belt. The horizontal and vertical movement module of the embedding assembly drives the material taking tool to move. The material taking cylinder drives the material taking pin to insert into the shell embedding hole to grab. The material pressing cylinder presses the embedding hole to fit into the hardware terminal. The material taking pin synchronously retreats to prevent injury. The utility model realizes full automation of shell conveying, bending, cutting and embedding. The feeding positioning error is small, the bending precision is high, the efficiency is improved by 3 times, and the device is suitable for multiple specifications of shells.

Description

Technical Field

[0001] This utility model relates to the field of charger assembly technology, and in particular to a device for automatically inserting irregularly shaped spring pieces. Background Technology

[0002] As an indispensable power conversion device for electronic products, chargers require metal spring contacts to connect the plug to the internal circuitry. With the miniaturization and internationalization of chargers, especially European standard chargers, the plug protrudes forward, significantly increasing the installation depth of the internal metal terminals. To accommodate this structure, L-shaped or other irregularly shaped spring contacts are needed for electrical connection.

[0003] Currently, the assembly of irregularly shaped spring clips and charger housing hardware terminals is generally done manually. The process involves manually picking up the stamped irregularly shaped spring clips from the stock and then manually aligning them with the hardware terminals deep inside the housing for insertion. This traditional method has the following significant drawbacks: Low production efficiency and poor adaptability: manual feeding and installation are cumbersome, the single-process operation cycle is long, and a large number of operators are required to meet the needs of large-scale production, resulting in high labor costs; at the same time, manual operation is difficult to achieve continuous assembly line operation and cannot match the pace of modern production.

[0004] Low assembly precision and limited yield: The internal space for installing metal terminals in the charger housing is small and deep. When manually aligning the mounting holes and metal terminals, misalignment is easy to occur, resulting in problems such as skewed spring contacts and loose fit between the mounting holes and metal terminals. This not only affects the stability of the electrical connection, but also requires additional rework costs.

[0005] Insufficient operational safety: The irregularly shaped springs are metal stamping parts with sharp edges, which can easily cut the operator's hands during manual handling and assembly, posing a safety hazard; moreover, long-term repetitive work can easily lead to personnel fatigue, further increasing the operational risks.

[0006] Therefore, developing an automated device that integrates feeding, bending, picking, and embedding is key to solving the problem of efficient and accurate embedding of irregularly shaped spring pieces. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this utility model aims to provide a technical solution that can solve the above problems.

[0008] This utility model provides a device for automatically inserting irregularly shaped spring clips, comprising: A rack is used to assemble various functional components; The supply component is used to supply irregularly shaped spring pieces. The supply component is equipped with a supply chute and a feeding mechanism. The feeding mechanism drives the irregularly shaped spring pieces to be transported along the supply chute to the picking station at the end of the chute. The fixture base is used to fix the workpiece during the installation process, and the bottom of the workpiece is provided with the hardware terminals to be assembled; The mounting assembly includes a horizontal moving module, a vertical moving module, and a material picking fixture. The material picking fixture is installed on the drive end of the vertical moving module, the vertical moving module is installed on the drive end of the horizontal moving module, and the horizontal moving module is installed on the frame. Driven by the vertical moving module, the material picking fixture picks up the irregularly shaped spring from the material picking station, moves it above the fixture base driven by the horizontal moving module, and then, driven by the vertical moving module, inserts the irregularly shaped spring into the hardware terminal of the workpiece. The material handling fixture includes a pressure sleeve and a material handling pin. One end of the pressure sleeve is fixed to the drive end of the vertical moving module, and the other end is the pressure end. The material handling pin passes through the through hole inside the pressure sleeve and can slide along it. The end of the material handling pin located at the pressure end forms a material handling tip. The material handling tip is interference-fitted with the mounting hole of the irregular spring to grab the spring. The pressure end of the pressure sleeve is used to press the outer ring of the mounting hole of the irregular spring, so that the mounting hole is interference-fitted with the hardware terminal.

[0009] Furthermore, the cross-sectional shape of the picking tip of the picking pin is adapted to the shape of the mounting hole of the irregular spring.

[0010] Furthermore, the material handling fixture also includes a material handling cylinder and a material handling support plate. The material handling cylinder is installed on the drive end of the vertical moving module, the material handling support plate is installed on the piston end of the material handling cylinder, and the material handling pin is installed on the material handling support plate. The material handling cylinder drives the material handling support plate to move the material handling pin along the internal through hole of the pressure sleeve.

[0011] Furthermore: the transverse module includes a transverse cylinder and a transverse slide plate. The transverse cylinder is fixed to the frame, and the transverse slide plate is slidably connected to the frame. The vertical module is assembled on the transverse slide plate. The vertical module includes a vertical slide plate and a vertical cylinder. The vertical cylinder is fixed to the transverse slide plate, and the vertical slide plate is slidably connected to the transverse slide plate. The material picking cylinder and the pressure sleeve are respectively fixed to the vertical slide plate.

[0012] Furthermore: The feeding mechanism is assembled on one side of the supply chute and includes a feeding cylinder, a feeding slide plate, a positioning cylinder, a positioning bracket, and a positioning rod; the feeding cylinder is fixed to the frame, the feeding slide plate is slidably connected to the frame and is drivenly connected to the piston end of the feeding cylinder; the positioning cylinder is fixed to the feeding slide plate, the positioning bracket is fixed to the piston end of the positioning cylinder, and the positioning rod is fixed to the positioning bracket for inserting into the guide hole of the irregular spring strip frame.

[0013] Furthermore, it also includes a bending assembly, which is assembled at the bending station at the end of the supply chute for bending irregularly shaped spring sheets. The bending assembly includes a bending base, a bending cylinder, a bending push block, and a bending push rod. The bending cylinder is assembled on the frame below the bending station. The bending base is fixed to the bending station on the frame. The bending cylinder has an oblique guide hole at the bending point of the irregularly shaped spring sheet. The bending push block is driven to the piston rod of the bending cylinder. One end of the bending push rod is driven to the bending push block, and the other end passes through the oblique guide hole and slides along it, so as to bend the irregularly shaped spring sheet under the drive of the bending cylinder.

[0014] Furthermore, the bending assembly also includes a bending block, a pressing lever, and a pressing cylinder. The pressing cylinder is fixed to the frame, and the pressing lever is rotatably connected to the bending base. One end of the lever is driven to the piston end of the pressing cylinder, and the other end extends toward the bending station and is fixed to the bending block. The bending block is used to press the outer ring of the irregular spring insert hole.

[0015] Furthermore, the bending assembly also includes a material-receiving punch for punching the connecting part of the irregularly shaped spring at the material-receiving station; the bending base is provided with a material-receiving punch at the material-receiving station, one end of the material-receiving punch is connected to the bending push block, and the other end passes through the material-receiving punch.

[0016] Furthermore, the bending base has a frame punch at the end away from the supply chute, and the bending assembly also includes a frame punch. The frame punch is mounted on the bending push block at the position corresponding to the frame punch, and is driven by the bending push block to punch the frame of the punched strip.

[0017] Furthermore, the supply assembly also includes a pressure block base, a pressure block rocker, and a pressure block spring; the pressure block base is fitted to the side edge of the supply chute and extends into the chute; the pressure block rocker is rotatably connected to the pressure block base, with one end abutting downward against the irregularly shaped spring and the other end abutting against one end of the pressure block spring; the other end of the pressure block spring abuts against the pressure block base, and its elastic force drives the pressure block rocker to press the irregularly shaped spring.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. Significantly improves production efficiency and reduces labor costs: This utility model achieves full automation of the irregular-shaped spring sheet process from material strip conveying, bending, punching and separation to hardware terminal embedding through the coordinated operation of the supply component, bending component, and embedding component, without the need for manual intervention; the feeding mechanism ensures that the material strip conveying efficiency is increased by more than 3 times through the precise cooperation of the positioning rod and the guide hole, combined with the anti-warping constraint of the pressure block structure; the horizontal and vertical movement modules of the embedding component, together with the material picking tooling, shorten the single embedding cycle to within 2 seconds, which can meet the needs of large-scale continuous production, while reducing the number of operators by more than 80%.

[0019] 2. Ensuring assembly precision and improving product yield: The picking pin adopts a cross-sectional structure adapted to the shape of the insertion hole, and with the lifting mechanism driven independently by the picking cylinder, it can not only stably grasp the spring sheet, but also retract in time during insertion to avoid damaging the hardware terminals; the bending assembly uses the dual positioning of the inclined guide hole and the pressure block lever to control the bending angle accuracy of the spring sheet within ±0.5°; the magnetic position sensor and linear guide rail of the feeding mechanism ensure that the material conveying positioning error is less than 0.1mm, and the overall yield rate is increased from 85% for manual assembly to over 99%.

[0020] 3. Improve operational safety and reduce operational risks: The fully automated process avoids direct contact between operators and the sharp edges of the metal springs, fundamentally eliminating the risk of scratches; each moving component is driven by a cylinder and limited by a sensor, with mechanical hard limit and electrical interlock protection to prevent equipment collisions or damage caused by component malfunctions, significantly improving operational safety.

[0021] 4. High integration and strong adaptability: The bending, punching, material handling and embedding functions are integrated into the same frame, simplifying the equipment layout and reducing the floor space by 40%; the horizontal movement, vertical movement and material handling cylinders are all selected with adjustable stroke, and with replaceable material handling pins and fixture bases, it can be quickly adapted to different specifications of irregularly shaped springs (such as L-shaped, U-shaped) and charger housings without the need for overall equipment modification, and has extremely strong adaptability.

[0022] 5. Simplified structural design reduces operation and maintenance costs: The bending assembly drives the bending push rod, material picking punch, and edge punch through the same bending cylinder, realizing multi-action linkage and reducing the number of driving components; the pressure block rocker plate and spring cooperation structure of the supply assembly can prevent the material strip from tilting without power drive, reducing energy consumption; key components adopt standardized cylinders and guide rails, making maintenance and replacement convenient, reducing equipment operation and maintenance costs by more than 30%.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a cross-sectional schematic diagram of the present invention in its embedded state; Figure 3 This is a schematic diagram of the structure of the pressure sleeve and the material picking pin of this utility model; Figure 4 This is a structural schematic diagram of the supply chute and feeding mechanism of this utility model; Figure 5 This is a cross-sectional schematic diagram of the bending component of this utility model; Figure 6 This is a cross-sectional schematic diagram of the material-taking punch and material-taking pin of this utility model; Figure 7 This is a structural schematic diagram of the irregularly shaped spring and the material strip frame of this utility model.

[0026] The reference numerals and names in the figure are as follows: 10 Frame; 11 Supply assembly; 12 Supply chute; 13 Press block base; 14 Press block rocker; 15 Limiting press block; 20 Feeding mechanism; 21 Feeding cylinder; 22 Feeding slide plate; 23 Positioning cylinder; 24 Positioning bracket; 25 Positioning rod; 30 Insertion assembly; 31 Horizontal movement cylinder; 32 Horizontal movement slide plate; 33 Vertical movement slide plate; 34 Vertical movement cylinder; 40 Picking tool; 41 Pressing sleeve; 42 Pressing end; 43 Picking cylinder; 44 Picking Material support plate; 45 Material picking pin; 46 Material picking tip; 50 Bending assembly; 51 Bending base; 52 Bending cylinder; 53 Bending push rod; 54 Bending push block; 55 Transverse slide; 61 Bending pressure block; 62 Pressure block lever; 63 Pressure block cylinder; 64 Material picking punch; 65 Frame punch; 66 Guide post; 70 Fixture base; 71 Workpiece; 72 Hardware terminal; 73 Irregular spring; 74 Insertion hole; 75 Material strip frame; 76 Guide hole. Detailed Implementation

[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figures 1 to 7 In this embodiment of the present invention, an apparatus for automatically inserting irregularly shaped spring clips 73 includes: Rack 10 is used to assemble various functional components; The supply component 11 is used to supply the irregularly shaped spring sheet 73. The supply component 11 is provided with a supply chute 12 and a feeding mechanism 20. The feeding mechanism 20 drives the irregularly shaped spring sheet 73 to be transported along the supply chute 12 to the material picking station at the end of the chute. The fixture base 70 is used to fix the workpiece 71 during the installation process. The bottom of the workpiece 71 is provided with the hardware terminal 72 to be assembled. The mounting assembly 30 includes a horizontal moving module, a vertical moving module, and a material picking fixture 40. The material picking fixture 40 is mounted on the drive end of the vertical moving module, the vertical moving module is mounted on the drive end of the horizontal moving module, and the horizontal moving module is mounted on the frame 10. Under the drive of the vertical moving module, the material picking fixture 40 picks up the irregularly shaped spring piece 73 from the material picking station, moves it above the fixture base 70 under the drive of the horizontal moving module, and then, under the drive of the vertical moving module, mounts the irregularly shaped spring piece 73 onto the hardware terminal 72 of the workpiece 71. The material handling fixture 40 includes a pressure sleeve 41 and a material handling pin 45. One end of the pressure sleeve 41 is fixed to the drive end of the vertical moving module, and the other end is the pressure end 42. The material handling pin 45 passes through the internal through hole of the pressure sleeve 41 and can slide along it. The end of the material handling pin 45 located at the pressure end 42 forms a material handling tip 46. The material handling tip 46 is interference-fitted with the mounting hole 74 of the irregular spring 73 to grab the spring. The pressure end 42 of the pressure sleeve 41 is used to press the outer ring of the mounting hole 74 of the irregular spring 73, so that the mounting hole 74 is interference-fitted with the hardware terminal 72.

[0029] Specifically, this utility model is applicable to the automatic installation of irregularly shaped spring contacts 73 and metal terminals 72 in electronic products such as chargers. Taking a European standard charger as an example, its plug extends forward and protrudes, with a large internal assembly space. It is necessary to use L-shaped or other irregularly shaped spring contacts 73 to achieve electrical connection between the plug and the internal circuit. Manual assembly has many drawbacks: first, manual material loading and assembly are inefficient and cannot meet the needs of large-scale production; second, manual operation has poor precision, which can easily lead to spring contact misalignment and low yield; third, metal spring contacts can easily scratch operators, posing a safety hazard.

[0030] This utility model uses the material-grabbing tool 40 of the mounting component 30 to complete the gripping and mounting of the irregularly shaped spring piece 73: the material-grabbing tip 46 of the material-grabbing pin 45 is interference-fitted with the mounting hole 74 of the irregularly shaped spring piece 73 to achieve gripping; the horizontal and vertical moving modules cooperate to achieve the spatial displacement of the material-grabbing tool 40, and move the spring piece to the workpiece 71 on the fixture base 70; then the pressure end 42 of the pressure sleeve 41 presses the outer ring of the spring piece mounting hole 74, so that the mounting hole 74 fits into the metal terminal 72 at the bottom of the workpiece 71, and the deformation of the metal protrusion in the mounting hole 74 achieves a tight electrical connection with the metal terminal 72, thereby replacing manual labor to complete the efficient, high-precision and safe mounting operation.

[0031] like Figure 3 and Figure 7 As shown, preferably, the cross-sectional shape of the picking tip 46 of the picking pin 45 is adapted to the shape of the mounting hole 74 of the irregular spring 73.

[0032] Specifically, in order to enable the material picking pin 45 to be smoothly and accurately inserted into the mounting hole 74 of the irregular spring 73, the present invention preferably designs the material picking tip 46 of the material picking pin 45 as a conical structure, the size of which gradually decreases along the insertion direction.

[0033] To ensure that the shape of the metal protrusions extending into the mounting hole 74 of the irregularly shaped spring piece 73 is not altered during the material picking and mounting process, thereby guaranteeing the final mounting effect, this utility model preferably sets the cross-sectional shape of the material picking pin 45 to be the same as the shape of the mounting hole 74. For example, when the mounting hole 74 is set as a quincunx-shaped through hole, corresponding metal protrusions will be formed inside the mounting hole 74. When these metal protrusions are inserted into the hardware terminal 72, they can undergo moderate deformation, thereby tightly gripping the hardware terminal 72 and forming a firm fixed connection. Therefore, when the material picking pin 45 is inserted into the mounting hole 74 for gripping, irreversible deformation of these metal protrusions must be avoided. For this purpose, the cross-sectional shape of the material picking pin 45 can also be designed as a quincunx shape, and its size is slightly larger than the size of the mounting hole 74. In this way, when inserted into the mounting hole 74, the outer wall of the material picking pin 45 can form a certain frictional force with the inner wall of the mounting hole 74, thereby effectively gripping and moving the irregularly shaped spring piece 73.

[0034] In addition, the tapered design of the pick-up pin 45 and the cross-sectional shape corresponding to the mounting hole 74 also play an important role, which facilitates the precise pressure of the pressure sleeve 41, causing the irregularly shaped spring 73 to smoothly disengage from the pick-up pin 45. This ensures that after the irregularly shaped spring 73 moves to the metal terminal 72 inside the charger housing, it can be smoothly pressed, so that the mounting hole 74 of the irregularly shaped spring 73 is disengaged from the pick-up pin 45 and fitted onto the metal terminal 72, completing the mounting operation.

[0035] like Figure 1 and Figure 2 As shown, preferably, the material handling fixture 40 also includes a material handling cylinder 43 and a material handling support plate 44. The material handling cylinder 43 is installed on the drive end of the vertical moving module, the material handling support plate 44 is installed on the piston end of the material handling cylinder 43, and the material handling pin 45 is installed on the material handling support plate 44. The material handling cylinder 43 drives the material handling support plate 44 to drive the material handling pin 45 to slide along the internal through hole of the pressure sleeve 41.

[0036] Specifically, to ensure that the picking pin 45 can be inserted into the mounting hole 74 of the irregularly shaped spring 73 during picking, and can retract in time during mounting to avoid damaging the metal terminal 72, this utility model provides a picking cylinder 43 and a picking support plate 44 in the picking fixture 40. The picking cylinder 43 drives the picking support plate 44 to move the picking pin 45 along the internal through hole of the pressure sleeve 41: during picking, the picking cylinder 43 pushes the picking support plate 44 to move the picking pin 45 downward, and the picking tip 46 protrudes from the pressure end 42 of the pressure sleeve 41 and inserts into the mounting hole 74 to achieve gripping; during mounting, the picking cylinder 43 pulls the picking support plate 44 to retract the picking pin 45 upward, so that the pressure sleeve 41 can smoothly press the mounting hole 74 onto the metal terminal 72. This structural design allows for precise control of the timing of the pick-up pins 45, ensuring reliable pick-up while avoiding damage to the workpiece 71 and the hardware terminals 72, thus improving the yield rate of the mounting operation.

[0037] like Figure 1 and Figure 2 As shown, preferably, the transverse module includes a transverse cylinder 31 and a transverse slide plate 32. The transverse cylinder 31 is fixedly connected to the frame 10, and the transverse slide plate 32 is slidably connected to the frame 10. The vertical module is assembled on the transverse slide plate 32. The vertical module includes a vertical slide plate 33 and a vertical cylinder 34. The vertical cylinder 34 is fixedly connected to the transverse slide plate 32, and the vertical slide plate 33 is slidably connected to the transverse slide plate 32. The material picking cylinder 43 and the pressure sleeve 41 are respectively fixedly connected to the vertical slide plate 33.

[0038] Specifically, to achieve precise displacement of the material handling fixture 40 in the horizontal and vertical directions, this utility model has optimized the structure of the horizontal and vertical movement modules. Linear guides (such as the HGL15CA model) can be installed at sliding connection points, such as between the horizontal sliding plate 32 and the frame 10, and between the vertical sliding plate 33 and the horizontal sliding plate 32, to ensure linear motion accuracy. The horizontal movement module uses mini cylinders (such as the MI16X125 series) to meet the power and accuracy requirements for the horizontal movement of the material handling fixture 40; the vertical movement module uses dual-axis double-stroke adjustable ultra-thin cylinders (such as the ACQJS32X100 model) to provide sufficient power to complete the pressing operation of the irregularly shaped spring sheet 73, and the pressing distance can be adjusted according to different workpieces 71; the material handling cylinder 43 uses a short-stroke ultra-thin cylinder (such as the ACQ-12X10 model) to achieve short-distance rapid movement of the material handling pin 45. Through these selections and structural designs, the stability and accuracy of the mounting component 30 during spatial displacement are ensured, meeting the stringent positional accuracy requirements of the automatic mounting of the irregularly shaped spring 73.

[0039] like Figure 1 and Figure 4As shown, preferably, the feeding mechanism 20 is assembled on one side of the supply chute 12, including a feeding cylinder 21, a feeding slide plate 22, a positioning cylinder 23, a positioning bracket 24, and a positioning rod 25; the feeding cylinder 21 is fixed to the frame 10, the feeding slide plate 22 is slidably connected to the frame 10 and is drivenly connected to the piston end of the feeding cylinder 21; the positioning cylinder 23 is fixed to the feeding slide plate 22, the positioning bracket 24 is fixed to the piston end of the positioning cylinder 23, and the positioning rod 25 is fixed to the positioning bracket 24 for inserting into the guide hole 76 of the edge frame 75 of the irregular spring sheet 73.

[0040] Specifically, the irregularly shaped spring piece 73 is made from a metal raw material plate through a continuous stamping process. The material strip frame 75 around it is used to connect and position the stamped parts, and the guide holes 76 on both sides of the material strip frame 75 can realize the positioning and guidance of the raw material plate. The feeding mechanism 20 of this utility model realizes the precise delivery of the irregularly shaped spring piece 73 by using the guide holes 76: the feeding cylinder 21 drives the feeding slide plate 22 to move laterally along the supply slide 12, and at the same time, the positioning cylinder 23 drives the positioning bracket 24 to move the positioning rod 25 up and down, so that the positioning rod 25 is inserted into the guide hole 76 of the material strip frame 75, and then the feeding cylinder 21 can move the material strip frame 75 and the irregularly shaped spring piece 73 to the picking station.

[0041] To ensure feeding accuracy, the feeding cylinder 21 is equipped with a magnetic cylinder position sensor, which precisely controls the movement distance by detecting the position of the piston magnetic ring. At the same time, a positioning slider is set on the positioning bracket 24, and a corresponding positioning guide hole is set on the feeding slide plate 22, so that the positioning slider and the positioning guide hole form a linear sliding connection, ensuring that the positioning rod 25 is accurately inserted into the guide hole 76, thereby realizing stable and accurate feeding of the irregularly shaped spring piece 73, laying the foundation for subsequent material picking and embedding operations.

[0042] like Figure 1 , Figure 4 and Figure 5 As shown, preferably, it also includes a bending assembly 50, which is assembled at the bending station at the end of the supply chute 12 for bending the irregularly shaped spring sheet 73. The bending assembly 50 includes a bending base 51, a bending cylinder 52, a bending push block 54, and a bending push rod 53. The bending cylinder 52 is assembled at the frame 10 below the bending station. The bending base 51 is fixed to the bending station of the frame 10. The bending cylinder 52 is provided with an oblique guide hole at the bending position of the irregularly shaped spring sheet 73. The bending push block 54 is driven to the piston rod of the bending cylinder 52. One end of the bending push rod 53 is driven to the bending push block 54, and the other end passes through the oblique guide hole and slides along it, so as to bend the irregularly shaped spring sheet 73 under the drive of the bending cylinder 52.

[0043] Specifically, the bending station is located between the end of the supply chute 12 and the picking station. When the irregularly shaped spring sheet 73 is conveyed by the supply chute 12, it is first bent at the bending station and then sent to the picking station. In order to simplify the stamping process and facilitate the conveying, the initial bending angle of the irregularly shaped spring sheet 73 is small. It needs to be bent into an L-shape by the bending assembly 50 at the bending station to fit the metal terminal 72.

[0044] The bending assembly 50 guides the bending push rod 53 to move obliquely through the oblique guide hole of the bending base 51, applying a thrust to the bending part of the irregularly shaped spring piece 73 to form a 90° bend. To achieve the oblique movement of the bending push rod 53, a transverse sliding groove 55 is provided at the connection between the bending push block 54 and the bending push rod 53, and a transverse slider is provided at the corresponding part of the bending push rod 53, so that the vertical linear movement of the bending cylinder 52 can be converted into the oblique sliding of the bending push rod 53, ensuring that the bending action is precise and efficient.

[0045] like Figure 1 , Figure 4 and Figure 5 As shown, preferably, the bending assembly 50 further includes a bending block 61, a pressing lever 62, and a pressing cylinder 63. The pressing cylinder 63 is fixedly connected to the frame 10, and the pressing lever 62 is rotatably connected to the bending base 51. One end of the lever is connected to the piston end of the pressing cylinder 63, and the other end extends toward the bending station and is fixedly connected to the bending block 61. The bending block 61 is used to press the outer ring of the irregular spring sheet 73 insert hole 74.

[0046] Specifically, the bending position of the irregularly shaped spring piece 73 is located between the mounting hole 74 and the long handle. To prevent the outer ring of the mounting hole 74 from shifting during bending, it needs to be pressed by the bending pressure block 61. At the same time, the bending pressure block 61 can also help position the bending part and improve the bending accuracy. After bending is completed, the pressure needs to be released to continue conveying. Therefore, the bending pressure block 61 is raised and lowered by the cooperation of the pressure block lever 62 and the pressure block cylinder 63: the middle of the pressure block lever 62 is rotatably connected to the bending base 51, one end is driven to rise and fall by the pressure block cylinder 63, and the bending pressure block 61 at the other end rotates with the lever to press or release the irregularly shaped spring piece 73.

[0047] In addition, the bending cylinder 52 can be an ESDAJ-S-80x10-B adjustable thin cylinder, and the briquetting cylinder 63 and the feeding cylinder 21 can be MI16X25 series mini cylinders to meet the power and installation space requirements.

[0048] like Figure 1 , Figure 4 and Figure 6 As shown, preferably, the bending assembly 50 also includes a material-receiving punch 64 for punching the connecting part of the irregularly shaped spring sheet 73 at the material-receiving station; the bending base 51 is provided with a material-receiving punch hole corresponding to the material-receiving station, one end of the material-receiving punch 64 is connected to the bending push block 54, and the other end passes through the material-receiving punch hole.

[0049] Specifically, in order to separate the irregularly shaped spring piece 73 from the strip frame 75 so that it can be gripped by the material handling fixture 40, the connecting bridge between the two is punched by the material handling punch 64 at the material handling station. The material handling punch 64 is integrated into the bending assembly 50, driven by the bending push block 54 and the bending cylinder 52, and completes the cutting action by passing through the material handling punch hole during punching.

[0050] During the punching process, the vertical moving module first drives the material-taking fixture 40 to move downwards, causing the pressure sleeve 41 to press the outer ring of the insert hole 74 and the material-taking pin 45 to insert into the insert hole 74. Then, the bending cylinder 52 drives the bending push block 54 to move upwards, which in turn drives the bending push rod 53 to bend and the material-taking punch 64 to punch. At the same time, the vertical moving module drives the material-taking fixture 40 to move upwards synchronously to avoid the punch. The cutting head of the material-taking punch 64 has a hollow structure to avoid the material-taking tip 46. After the punching is completed, the bending cylinder 52 resets, and the irregularly shaped spring 73 is then grabbed by the material-taking pin 45, completing the material-taking operation.

[0051] like Figure 1 and Figure 4 As shown, preferably, the bending base 51 has a frame punch at one end away from the supply chute 12, and the bending assembly 50 also includes a frame punch 65. The frame punch 65 is mounted on the bending push block 54 at the position corresponding to the frame punch, and is driven by the bending push block 54 to punch the frame 75 of the punched strip.

[0052] Specifically, after the irregularly shaped spring sheet 73 is cut by the material-taking punch 64, the material strip frame 75 needs to continue to be conveyed. To avoid the remaining part interfering with other components, it is cut by the frame punch 65. The frame punch 65 is mounted on the bending push block 54 and driven by the bending cylinder 52. During the punching process, it passes through the frame punch hole to complete the cut.

[0053] To improve the motion accuracy of the bending push block 54, a guide post 66 and a guide hole are provided between it and the bending base 51. The guide post 66 passes through the guide hole to form a straight guide, ensuring the stability and accuracy of the up and down movement of the bending push block 54.

[0054] like Figure 1 and Figure 4 As shown, preferably, the supply assembly 11 further includes a pressure block base 13, a pressure block rocker 14, and a pressure block spring; the pressure block base 13 is fitted to the side edge of the supply groove 12 and extends into the groove; the pressure block rocker 14 is rotatably connected to the pressure block base 13, with one end abutting downward against the irregularly shaped spring piece 73 and the other end abutting against one end of the pressure block spring; the other end of the pressure block spring abuts against the pressure block base 13, and its elastic force drives the pressure block rocker 14 to press the irregularly shaped spring piece 73.

[0055] Specifically, the edge 75 of the irregularly shaped spring sheet 73 is prone to tilting upwards due to its own structure or conveying impact when being conveyed to the chute 12, affecting the conveying and positioning accuracy. This invention uses a pressing structure composed of a pressure block base 13, a pressure block rocker plate 14, and a pressure block spring. This structure ensures that one end of the pressure block rocker plate 14 continuously presses against the irregularly shaped spring sheet 73, preventing it from tilting upwards. The elasticity of the pressure block spring enhances the pressing force, ensuring that the edge 75 of the spring sheet remains in contact with the conveyor chute 12 during conveying.

[0056] In addition, limiting blocks 15 can be added to both sides of the supply chute 12 to limit the material strip frame 75 in the top direction. Especially at the corresponding part of the feeding mechanism 20, the limiting blocks 15 can further prevent the material strip from tilting. The limiting blocks 15 at the feeding mechanism 20 are provided with long through holes at the part of the displacement path of the positioning rod 25 to avoid the positioning rod 25 and ensure that the positioning rod 25 can be accurately inserted into the guide hole 76 to ensure feeding accuracy.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A device for automatically inserting irregularly shaped spring clips, characterized in that, include: The rack (10) is used to assemble various functional components; The supply assembly (11) is used to supply irregularly shaped spring pieces (73). The supply assembly (11) is provided with a supply chute (12) and a feeding mechanism (20). The feeding mechanism (20) drives the irregularly shaped spring pieces (73) to be transported along the supply chute (12) to the material picking station at the end of the chute. A fixture base (70) is used to fix the workpiece (71) during the installation process. The bottom of the workpiece (71) is provided with a hardware terminal (72) to be assembled. The mounting assembly (30) is provided with a horizontal moving module, a vertical moving module and a picking tool (40). The picking tool (40) is installed on the drive end of the vertical moving module, the vertical moving module is installed on the drive end of the horizontal moving module, and the horizontal moving module is installed on the frame (10). The picking tool (40) picks up the irregularly shaped spring piece (73) from the picking station under the drive of the vertical moving module, moves it to the top of the fixture base (70) under the drive of the horizontal moving module, and then embeds the irregularly shaped spring piece (73) into the hardware terminal (72) of the workpiece (71) under the drive of the vertical moving module. The material handling fixture (40) includes a pressure sleeve (41) and a material handling pin (45). One end of the pressure sleeve (41) is fixed to the drive end of the vertical moving module, and the other end is the pressure end (42). The material handling pin (45) passes through the through hole inside the pressure sleeve (41) and can slide along it. The end of the material handling pin (45) located at the pressure end (42) forms a material handling tip (46). The material handling tip (46) is press-fitted with the mounting hole (74) of the irregular spring (73) to grab the spring. The pressure end (42) of the pressure sleeve (41) is used to press the outer ring of the mounting hole (74) of the irregular spring (73) so that the mounting hole (74) is press-fitted with the hardware terminal (72).

2. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, The cross-sectional shape of the picking tip (46) of the picking pin (45) is adapted to the shape of the mounting hole (74) of the irregular spring (73).

3. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, The material handling fixture (40) also includes a material handling cylinder (43) and a material handling support plate (44). The material handling cylinder (43) is installed on the drive end of the vertical moving module, the material handling support plate (44) is installed on the piston end of the material handling cylinder (43), and the material handling pin (45) is installed on the material handling support plate (44). The material handling cylinder (43) drives the material handling support plate (44) to drive the material handling pin (45) to slide along the internal through hole of the pressure sleeve (41).

4. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, The transverse module includes a transverse cylinder (31) and a transverse slide plate (32). The transverse cylinder (31) is fixed to the frame (10), and the transverse slide plate (32) is slidably connected to the frame (10). The vertical module is assembled on the transverse slide plate (32). The vertical module includes a vertical slide plate (33) and a vertical cylinder (34). The vertical cylinder (34) is fixed to the transverse slide plate (32), and the vertical slide plate (33) is slidably connected to the transverse slide plate (32). The material picking cylinder (43) and the pressure sleeve (41) are respectively fixed to the vertical slide plate (33).

5. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, The feeding mechanism (20) is mounted on one side of the supply chute (12) and includes a feeding cylinder (21), a feeding slide plate (22), a positioning cylinder (23), a positioning bracket (24), and a positioning rod (25). The feeding cylinder (21) is fixed to the frame (10), the feeding slide plate (22) is slidably connected to the frame (10) and is drivenly connected to the piston end of the feeding cylinder (21). The positioning cylinder (23) is fixed to the feeding slide plate (22), the positioning bracket (24) is fixed to the piston end of the positioning cylinder (23), and the positioning rod (25) is fixed to the positioning bracket (24) for inserting into the guide hole (76) of the edge frame (75) of the irregular spring sheet (73).

6. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, It also includes a bending assembly (50), which is installed at the bending station at the end of the supply chute (12) for bending the irregular spring sheet (73). The bending assembly (50) includes a bending base (51), a bending cylinder (52), a bending push block (54), and a bending push rod (53). The bending cylinder (52) is installed at the frame (10) below the bending station. The bending base (51) is fixed to the bending station of the frame (10). The bending cylinder (52) is provided with a slanted guide hole at the bending point of the irregular spring sheet (73). The bending push block (54) is driven to the piston rod of the bending cylinder (52). One end of the bending push rod (53) is driven to the bending push block (54), and the other end passes through the slanted guide hole and slides along it to bend the irregular spring sheet (73) under the drive of the bending cylinder (52).

7. The device for automatically inserting irregularly shaped spring clips according to claim 6, characterized in that, The bending assembly (50) also includes a bending block (61), a block lever (62) and a block cylinder (63). The block cylinder (63) is fixed to the frame (10). The block lever (62) is rotatably connected to the bending base (51). One end of the lever is connected to the piston end of the block cylinder (63), and the other end extends toward the bending station and is fixed to the bending block (61). The bending block (61) is used to press the outer ring of the shaped spring sheet (73) insert hole (74).

8. The device for automatically inserting irregularly shaped spring clips according to claim 6, characterized in that, The bending assembly (50) also includes a material-taking punch (64) for punching the connecting part of the irregular spring sheet (73) at the material-taking station; the bending base (51) is provided with a material-taking punch at the corresponding material-taking station, and one end of the material-taking punch (64) is connected to the bending push block (54) and the other end passes through the material-taking punch.

9. The device for automatically inserting irregularly shaped spring clips according to claim 6, characterized in that, The bending base (51) has a frame punch at one end away from the supply chute (12). The bending assembly (50) also includes a frame punch (65). The frame punch (65) is mounted on the bending push block (54) at the position corresponding to the frame punch. The bending push block (54) drives the punched strip frame (75) to punch.

10. The device for automatically inserting irregularly shaped spring clips according to claim 1, characterized in that, The supply assembly (11) also includes a pressure block base (13), a pressure block rocker (14), and a pressure block spring; the pressure block base (13) is fitted to the side edge of the supply chute (12) and extends into the chute; the pressure block rocker (14) is rotatably connected to the pressure block base (13), with one end abutting downward against the irregular spring piece (73) and the other end abutting against one end of the pressure block spring; the other end of the pressure block spring abuts against the pressure block base (13), and its elastic force drives the pressure block rocker (14) to press the irregular spring piece (73).

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