Torsion spring assembling device

Abstract

The utility model discloses a torsional spring assembling device, relates to the technical field of automatic assembling equipment, and aims to solve the problems of low assembling efficiency, unstable quality and the like of a traditional torsional spring. The whole assembly process is formed by the torsional spring vibration material channel, the material distributing mechanism, the feeding mechanism and the screwing mechanism. The torsional spring vibration material channel automatically conveys torsional springs, and the material distribution mechanism controls single-piece feeding. A material taking shaft of the feeding mechanism is elastically squeezed into the center of a torsional spring to achieve stable grabbing, and a discharging sleeve is pushed downwards to be released to avoid clamping stagnation. The profiling shaft of the screwing mechanism rotates and twists the torsion spring arm under the control of the driving piece so that the torsion spring arm can be clamped into the corresponding position of the target product. Full-automatic operation of automatic feeding, stable grabbing, accurate positioning and reliable screwing of the torsional spring is achieved, the torsional spring is prevented from being damaged through elastic squeezing-in grabbing, manual operation is replaced with accurate screwing of the profiling shaft, the assembling efficiency and the product consistency are improved, and potential safety hazards are eliminated.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly equipment technology, and in particular to a torsion spring assembly device. Background Technology

[0002] Today, torsion springs, as a key elastic element, are widely used in various mechanical, electronic, and electrical products, such as switches, connectors, clamps, toys, and automotive parts. Their function is to provide the required torque or restoring force through torsional deformation. During product assembly, accurately and reliably installing the torsion spring into its predetermined position and completing the torsional fixation (commonly known as "tightening") of its torsion arm to the corresponding slot or structure is a crucial and challenging step in the entire manufacturing process.

[0003] Currently, the assembly of torsion springs mainly relies on manual operation or semi-automated equipment. In manual assembly, operators must use tweezers, fingers, or simple tools to manually pick up the torsion spring, place it in the approximate target position, and then laboriously adjust and twist its torsion arm until it is properly engaged. This method is not only inefficient and fails to meet the demands of modern production, but also suffers from poor product assembly quality due to its high dependence on operator skill. Problems such as installation position deviations, insufficient tightening angles, or inadequate force are prone to occur, leading to a decrease in yield. Furthermore, the small and elastic torsion spring is highly susceptible to springing, deformation, or damage during manual operation, posing a safety hazard of pinching or scratching the operator's fingers and demanding a high level of operator skill.

[0004] To improve efficiency, some production lines have introduced semi-automation solutions, such as using vibratory feeders to automatically sort and transport torsion springs, or using simple robotic arms or cylinders to perform basic pick-and-place actions. However, these semi-automatic methods still face significant bottlenecks in the critical installation and tightening stages: In the gripping and releasing stages, whether using rigid grippers or suction cups, it is difficult to reliably handle the torsion spring's tiny dimensional tolerances, possible elastic deformation, or surface oil contamination, which can easily lead to gripping failures, drops during the process, or the torsion spring getting stuck on the clamp and unable to detach smoothly during release; Furthermore, the tightening action of precisely twisting one arm of the torsion spring and locking it into a specific position on the product is difficult to simulate stably with simple and reliable automated mechanisms due to the complexity of its motion trajectory and force control. It often still requires manual intervention or reliance on expensive and complex multi-axis robots, resulting in limited automation and efficiency improvements; Finally, precisely positioning the torsion spring to the tiny mounting point on the product and ensuring that the torsion arm is accurately aligned with the corresponding slot places extremely high demands on the positioning accuracy and repeatability of the equipment, which is very difficult to achieve within a semi-automated framework. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides a torsion spring assembly device with reasonable structural design, reliable action coordination and high degree of automation. However, it has obvious shortcomings in realizing the full automation of the torsion spring assembly process, especially in solving the problems of reliable and non-destructive gripping and release, as well as efficient and precise tightening action. This results in limited assembly efficiency, unstable product quality, high equipment cost and still difficulty in getting rid of dependence on manual labor.

[0006] The technical solution of this utility model includes: a torsion spring vibrating conveyor for vibratingly conveying torsion springs to be assembled; a torsion spring dispensing mechanism, including a torsion spring dispensing seat and a dispensing drive, wherein the torsion spring dispensing seat receives a torsion spring located at the front end of the conveyor queue transported by the torsion spring vibrating conveyor; a torsion spring loading mechanism, including a loading moving module, a picking shaft, a unloading sleeve, and an unloading drive; the picking shaft is connected to the output end of the loading moving module; the unloading sleeve is movably sleeved outside the picking shaft; the unloading drive is connected to the unloading sleeve and is used to drive the unloading sleeve to move axially along the picking shaft; the loading moving module is used to drive the picking shaft to move above the torsion spring dispensing seat and descend, so that the picking shaft probes to the center of the torsion spring in the torsion spring dispensing seat and elastically squeezes into the center of the torsion spring, driving the torsion spring to be sleeved at the bottom of the picking shaft; and driving the sleeved torsion spring to be sleeved at the bottom of the picking shaft; and driving the sleeved torsion spring to be sleeved at the bottom end of the conveyor queue. The material-taking shaft moves above the torsion spring mounting position of the target product and descends to position. The unloading drive is used to drive the unloading sleeve to descend after positioning, so that the bottom of the unloading sleeve contacts the torsion spring and pushes the torsion spring down until the torsion spring disengages from the material-taking shaft, thereby completing the installation of the torsion spring on the target product. The tightening mechanism includes a tightening moving module, a contouring shaft, and a contouring shaft drive. The contouring shaft is connected to the output end of the tightening moving module. The contouring shaft drive is connected to the contouring shaft and is used to drive the contouring shaft to rotate. The tightening moving module is used to move the contouring shaft to the position of the target product where the torsion spring has been installed, and to bring the contouring shaft close to one arm of the torsion spring. The contouring shaft drive drives the contouring shaft to rotate, so that the contouring shaft abuts against one arm of the torsion spring and twists the arm until the arm twists and engages with the corresponding position of the target product, thereby completing the tightening and fixing of the torsion spring.

[0007] By adopting the above technical solution, a complete torsion spring assembly process is formed by setting up a torsion spring vibrating material channel, a torsion spring distribution mechanism, a torsion spring feeding mechanism, and a tightening mechanism. The torsion spring vibrating material channel realizes automatic conveying of torsion springs, and the torsion spring distribution mechanism controls that only one torsion spring enters the feeding stage at a time, avoiding multiple or disordered materials. The material picking shaft of the torsion spring feeding mechanism cooperates with the unloading sleeve to stably grasp and release the torsion spring. The contouring shaft of the tightening mechanism tightens the torsion spring by rotation. It can efficiently, accurately, and consistently complete all automated processes from automatic feeding, stable grasping, precise positioning and installation to final reliable tightening of torsion springs. Among them, the torsion spring feeding mechanism uses the elastic extrusion of the material picking shaft in conjunction with the coordinated action of the unloading sleeve. The material picking shaft extrudes the torsion spring in an elastic deformation manner. The central hole of the spring avoids damage to the torsion spring caused by forced insertion, while ensuring reliable gripping through the spring's own torsional force. The push-down release mechanism of the unloading sleeve ensures that the torsion spring disengages from the picking shaft without jamming, solving the problems of unstable gripping and sticking during release in traditional grippers. Furthermore, the tightening mechanism precisely simulates the manual torsion arm action through the rotational motion of the contour shaft, with the contour shaft drive controlling the rotation angle and force to ensure the torsion spring arm accurately engages in the target position. In this way, all components of the entire device work together without manual intervention, achieving full automation of the torsion spring assembly process, significantly improving assembly efficiency, avoiding the instability of assembly quality caused by manual operation, improving product consistency, and eliminating safety hazards such as torsion springs flying out and pinching operators during manual operation.

[0008] In one possible design, the torsion spring vibrating channel is inclined; the torsion spring distributor is rotatably arranged, initially in an inclined state, and has a receiving inlet that connects to the outlet of the torsion spring vibrating channel when the distributor is in an inclined state, to receive a torsion spring at the front of the channel queue transported by the vibrating channel; a distributor drive is used to drive the distributor to rotate from the inclined state to a horizontal state; and a loading moving module drives the picking shaft to move to the horizontal distributor to pick up the torsion spring.

[0009] With the above design, the torsion spring vibrating channel is set at an inclination and the torsion spring distribution seat is also initially set at an inclination. After the two are connected, it is easy for the torsion spring to smoothly enter the torsion spring distribution seat under the action of vibration. Compared with the horizontal conveying method, the inclined torsion spring vibrating channel is conducive to adjusting the conveying posture of the torsion spring, so that the torsion spring adjusts its posture consistently during vibration, which is helpful for the subsequent feeding and tightening processes. The torsion spring distribution seat rotates from the inclined state to the horizontal state for smooth material distribution. The material distribution action design is simple and easy to implement, which improves the accuracy and stability of material distribution.

[0010] In one possible design, a baffle cylinder is provided at the outlet of the torsion spring vibrating channel. The output shaft of the baffle cylinder can extend into the outlet of the torsion spring vibrating channel to close the outlet of the torsion spring vibrating channel when the torsion spring distribution seat rotates to a horizontal state.

[0011] The above design effectively prevents subsequent torsion springs from entering the torsion spring distribution seat, ensuring that only one torsion spring is waiting to be fed in the torsion spring distribution seat, further guaranteeing the accuracy of material distribution and avoiding assembly errors caused by excess material.

[0012] In one possible design, a material-picking rotary drive is fixedly connected to the output end of the feeding moving module, and the material-picking shaft is connected to the output shaft of the material-picking rotary drive so that the material-picking shaft rotates while it descends and contacts the torsion spring.

[0013] The spiral pressing action created by the above design allows the material picking shaft to be more smoothly and elastically squeezed into the center of the torsion spring. Compared with simply vertically descending to pick up materials, it reduces the friction and resistance between the material picking shaft and the torsion spring, reduces the risk of torsion spring deformation, improves the success rate of material picking, and also makes the material picking process more efficient.

[0014] In one possible design, the bottom of the material pick-up shaft is provided with a guide surface or chamfer.

[0015] The above design can guide the material picker shaft as it approaches the torsion spring, helping it to align with the center of the torsion spring more quickly and accurately, thus reducing the possibility of damage or displacement of the torsion spring caused by collision between the material picker shaft and the edge of the torsion spring.

[0016] In one possible design, the output end of the tightening moving module is fixed with a mounting base plate, and the contouring shaft drive is oscillatingly mounted on the mounting base plate. The contouring shaft drive is a cylinder, and a rocker arm is connected to its output shaft by a hinge. The length direction of the rocker arm is fixedly connected to the top of the contouring shaft and is perpendicular to the axis of the contouring shaft. The mounting base plate is also provided with an adjustable stroke limiter. When the rocker arm swings to the limit position under the drive of the contouring shaft drive, it abuts against the stroke limiter.

[0017] By adopting the above design, the force reduction structure of the cylinder-driven rocker arm reduces the output torque of the contour shaft, while the stroke limiter ensures the accuracy of the contour shaft's swing angle, avoiding excessive torsion that could damage the torsion spring or cause improper assembly, thus improving the reliability and adaptability of the tightening action.

[0018] In one possible design, the bottom end of the contour shaft has a protruding structure, and the end face of the protruding structure that contacts the torsion spring arm is diagonally divided into two regions: one region is a half-plane portion perpendicular to the axis of the contour shaft, and the other region is a half-sloping portion inclined relative to the plane portion, and the included angle between the half-sloping portion and the half-plane portion is 168 degrees to 175 degrees.

[0019] With the above design, the semi-flat portion at the end of the contour shaft provides stable support for the contact of the torsion spring arm, while the outwardly inclined semi-sloping portion facilitates the torsion spring arm to slide out and disengage from the contour shaft, preventing the torsion spring from resetting along with the contour shaft. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the torsion spring vibrating material channel and the torsion spring material distribution mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the torsion spring feeding mechanism and the torsion spring dispensing mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the torsion spring feeding mechanism of this utility model during feeding.

[0025] Figure 6 This is a schematic diagram of the tightening mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram showing the state of the profile shaft of this utility model when it is tightened;

[0027] Figure 8 This is a schematic diagram of the structure of the contour shaft of this utility model;

[0028] Among them, 1. Torsion spring vibrating feed channel; 11. Material blocking cylinder;

[0029] 2. Torsion spring material distribution mechanism; 21. Torsion spring material distribution seat; 22. Material distribution drive component;

[0030] 3. Torsion spring feeding mechanism; 31. Feeding moving module; 32. Picking shaft; 321. Chamfer; 33. Unloading sleeve; 34. Unloading drive component; 35. Picking rotation drive component;

[0031] 4. Tightening mechanism; 41. Tightening moving module; 42. Contouring shaft; 421. Semi-plane part; 422. Semi-sloping part; 43. Contouring shaft drive component; 44. Mounting base plate; 45. Rocker arm; 46. Stroke limiting component;

[0032] D0, target product; D12, torsion spring. Detailed Implementation

[0033] like Figures 1-8The torsion spring assembly device shown mainly includes a torsion spring vibrating conveyor 1, a torsion spring dispensing mechanism 2, a torsion spring loading mechanism 3, and a tightening mechanism 4. The torsion spring vibrating conveyor 1 is used to vibrate and convey the torsion spring D12 to be assembled. It generates vibration through a built-in vibration source, causing the torsion spring D12 to move along a set direction within the conveyor. The torsion spring dispensing mechanism 2 consists of a torsion spring dispensing seat 21 and a dispensing drive component 22. The dispensing seat 21 receives a torsion spring D12 located at the front of the conveyor queue, which is conveyed by the torsion spring vibrating conveyor 1. The dispensing drive component 22 controls the movement of the dispensing seat 21. The torsion spring loading mechanism 3 includes a loading moving module 31, a picking shaft 32, an unloading sleeve 33, and an unloading drive component 34, realizing the gripping and installation of the torsion spring. The tightening mechanism 4 consists of a tightening moving module 41, a contouring shaft 42, and a contouring shaft 42 drive component, completing the tightening and fixing of the torsion spring.

[0034] like Figures 2-4 As shown, the torsion spring vibrating material channel 1 is inclined, and its inclination angle can be selected within the range of 15°-45° according to actual needs. In this embodiment, 30° is preferred. This inclination angle can ensure smooth transportation under the vibration of the torsion spring D12 and effectively maintain the consistency of the torsion spring's posture. The torsion spring distribution seat 21 is rotatably mounted on a fixed bracket. Its initial state is inclined, and its receiving inlet is aligned and connected with the outlet of the torsion spring vibrating material channel 1 to ensure that the torsion spring D12 can smoothly enter the torsion spring distribution seat 21. The distribution drive 22 adopts a single-acting cylinder. The output shaft of the single-acting cylinder is connected to the torsion spring distribution seat 21. Through the extension and retraction of the single-acting cylinder, the torsion spring distribution seat 21 can be driven to rotate from the inclined state to the horizontal state. The operation is simple and reliable.

[0035] A baffle cylinder 11 is installed at the outlet of the torsion spring vibrating material channel 1. The baffle cylinder 11 is installed in such a position and direction that its output shaft can extend into the outlet of the torsion spring vibrating material channel 1. When the material distribution drive 22 drives the torsion spring distribution seat 21 to rotate to a horizontal state, the output shaft of the baffle cylinder 11 extends out, closing the outlet of the torsion spring vibrating material channel 1, thereby preventing subsequent torsion springs from continuing to enter the torsion spring distribution seat 21, ensuring that only one torsion spring is waiting to be fed in the torsion spring distribution seat 21.

[0036] like Figure 4 , Figure 5As shown, the loading moving module 31 adopts an XYZ axis moving module structure. Each axis moving component can be a common linear transmission mechanism such as a linear module or ball screw pair, and is driven by a servo motor or stepper motor to achieve precise displacement control. The picking shaft 32 is fixedly connected to the output end of the loading moving module 31. The picking shaft 32 is made of a metal material with certain wear resistance, and its bottom outer diameter is slightly larger than the inner diameter of the torsion spring's center hole. A guide surface or chamfer 321 is provided at the bottom of the picking shaft 32, which can provide good guidance when the picking shaft 32 approaches the torsion spring D12, helping the picking shaft 32 to quickly and accurately align with the center of the torsion spring D12. The unloading sleeve 33 is movably sleeved outside the picking shaft 32. The unloading sleeve 33 and the picking shaft 32 are clearance-fitted to ensure that the unloading sleeve 33 can move freely along the axial direction of the picking shaft 32. The unloading drive component 34 is a cylinder. The cylinder body is fixedly installed at a suitable position on the loading moving module 31. The output shaft of the cylinder is connected to the unloading sleeve 33. The cylinder's extension and retraction action drives the unloading sleeve 33 to move axially along the picking shaft 32.

[0037] To further improve the success rate of material picking, a material picking rotary drive 35 is fixedly connected to the output end of the feeding moving module 31. The material picking rotary drive 35 can be a small rotary cylinder. The material picking shaft 32 is connected to the output shaft of the material picking rotary drive 35. When the material picking shaft 32 descends and contacts the torsion spring D12, the material picking rotary drive 35 drives the material picking shaft 32 to rotate, forming a spiral pressing action, so that the material picking shaft 32 can be more smoothly and elastically squeezed into the center of the torsion spring, reducing the friction and resistance between the material picking shaft 32 and the torsion spring.

[0038] like Figure 6As shown, the torque-moving module 41 also adopts an XYZ axis moving module structure to achieve precise movement of the contouring shaft 42 in space. A mounting base plate 44 is fixed to the output end of the torque-moving module 41, providing mounting support for the contouring shaft 42 drive and other components. The contouring shaft 42 drive is oscillatingly mounted on the mounting base plate 44. In this embodiment, the contouring shaft 42 drive is a cylinder, with its cylinder body mounted on the mounting base plate 44 via a hinged seat, allowing it to oscillate. A rocker arm 45 is hinged to the output shaft of the cylinder. The length direction of the rocker arm 45 is fixedly connected to the top end of the contouring shaft 42 and perpendicular to its axial direction. This structure utilizes a cylinder to drive the rocker arm 45, creating a force-reducing and stroke-reducing structure, which can reduce the output torque of the contouring shaft 42 to avoid excessive torsion that could damage the torsion spring D12. An adjustable travel limiter 46 is also provided on the mounting base plate 44. The travel limiter 46 can be in the form of a combination of bolts and stops. By adjusting the position of the bolts, the limiting position of the travel limiter 46 can be changed to adapt to different torsion spring arm installation positions. When the rocker arm 45 swings to its limit position under the drive of the contour shaft 42, it abuts against the travel limiter 46, thereby ensuring the accuracy of the swing angle of the contour shaft 42 and avoiding excessive torsion that could damage the torsion spring or cause improper assembly.

[0039] like Figure 7 , Figure 8 As shown, the bottom end of the contour shaft 42 has a protruding structure. The end face of this protruding structure that contacts the torsion spring arm is diagonally divided into two regions: one region is a half-plane portion 421 perpendicular to the axis of the contour shaft 42, and the other region is a semi-inclined portion 422 that is inclined outward relative to the plane portion, with an angle of 172 degrees between the semi-inclined portion 422 and the plane portion. The half-plane portion 421 at the end of the contour shaft 42 provides stable support for the contact of the torsion spring arm, while the outwardly inclined semi-inclined portion 422 facilitates the torsion spring arm to slide out and disengage from the contour shaft 42, preventing the torsion spring D12 from returning to its original position along with the contour shaft 42.

[0040] During operation, the torsion spring vibrating feed channel 1 is activated. Under vibration, the torsion spring D12 is screened out from the vibrating plate and moves forward along the torsion spring vibrating feed channel 1. The torsion spring distribution seat 21 is in an inclined state, and its receiving inlet is connected to the outlet of the torsion spring vibrating feed channel 1. When the torsion spring at the front of the feed channel queue reaches the receiving inlet of the torsion spring distribution seat 21, it enters the torsion spring distribution seat 21. Next, the distribution position sensor receives a signal that the torsion spring has reached its position, and the distribution drive 22 drives the torsion spring distribution seat 21 to rotate to a horizontal state. Simultaneously, the cylinder at the outlet of the torsion spring vibrating feed channel 1 closes the torsion spring vibrating feed channel 1 to prevent subsequent torsion springs D12 from entering the torsion spring distribution seat 21. At this time, the loading moving module 31 drives the picking shaft 32 to move above the torsion spring distribution seat 21 and descend. The picking shaft 32 descends to the center hole of the torsion spring, and the picking shaft 32 rotates under force, ensuring that the elastic spring is squeezed into the center hole of the torsion spring and then causes the torsion spring to be sleeved at the bottom of the picking shaft 32. Subsequently, the loading moving module 31 moves the picking shaft 32, which is fitted with a torsion spring, to above the torsion spring mounting position of the target product D0 and lowers to position itself. The unloading drive 34 drives the unloading sleeve 33 to descend, so that the bottom of the unloading sleeve 33 contacts the torsion spring and pushes the torsion spring down until the torsion spring disengages from the picking shaft 32, completing the installation of the torsion spring D12 on the target product D0. The loading moving module 31 then drives the picking shaft 32 and the unloading sleeve 33 to reset and moves to pick up the next torsion spring. Finally, the target product D0 moves to the torsion spring tightening station. The tightening moving module 41 drives the contouring shaft 42 to approach the torsion spring. The contouring shaft 42 drive 42 to rotate, and the contouring shaft 42 abuts against one arm of the torsion spring and twists the arm until the arm is twisted and locked into the corresponding position of the target product D0, completing the tightening and fixing of the torsion spring.

Claims

1. A torsion spring assembly device characterized by: Including: Torsion spring vibrating feed channel (1) is used for vibrating conveying of the torsion spring (D12) to be assembled. The torsion spring material distribution mechanism (2) includes a torsion spring material distribution seat (21) and a material distribution drive (22). The torsion spring material distribution seat (21) receives a torsion spring (D12) located at the front end of the material channel queue transported out by the torsion spring vibration material channel (1). The torsion spring feeding mechanism (3) includes a feeding moving module (31), a picking shaft (32), a discharge sleeve (33), and a discharge driving component (34); the picking shaft (32) is connected to the output end of the feeding moving module (31); the discharge sleeve (33) is movably sleeved outside the picking shaft (32); the discharge driving component (34) is connected to the discharge sleeve (33) and is used to drive the discharge sleeve (33) to move axially along the picking shaft (32); the feeding moving module (31) is used to drive the picking shaft (32) to move on the torsion spring distribution seat (21). The material taking shaft (32) is lowered so that it reaches the center of the torsion spring in the torsion spring distribution seat (21) and elastically squeezes into the center of the torsion spring, driving the torsion spring to be sleeved at the bottom of the material taking shaft (32); and driving the material taking shaft (32) with the torsion spring sleeved to move to above the torsion spring installation position of the target product (D0) and lowering for positioning; the unloading drive (34) is used to drive the unloading sleeve (33) to descend after positioning, so that the bottom of the unloading sleeve (33) contacts the torsion spring and pushes the torsion spring down until the torsion spring is disengaged from the material taking shaft (32) to complete the installation of the torsion spring on the target product (D0); The tightening mechanism (4) includes a tightening moving module (41), a contouring shaft (42), and a contouring shaft (42) drive; the contouring shaft (42) is connected to the output end of the tightening moving module (41); the contouring shaft (42) drive is connected to the contouring shaft (42) and is used to drive the contouring shaft (42) to rotate; the tightening moving module (41) is used to move the contouring shaft (42) to the location of the target product (D0) with the torsion spring installed, and to bring the contouring shaft (42) close to one arm of the torsion spring (D12); the contouring shaft (42) drive drives the contouring shaft (42) to rotate, so that the contouring shaft (42) abuts against one arm of the torsion spring (D12) and twists the arm until the arm twists and engages with the corresponding position of the target product (D0), so as to complete the tightening and fixing of the torsion spring (D12).

2. The torsion spring assembly of claim 1, wherein: The torsion spring vibrating channel (1) is inclined; the torsion spring distribution seat (21) is rotatably arranged, and its initial state is inclined. The torsion spring distribution seat (21) has a receiving inlet, which is connected to the outlet of the torsion spring vibrating channel (1) when the torsion spring distribution seat (21) is in an inclined state, so as to receive a torsion spring at the front end of the channel queue transported by the torsion spring vibrating channel (1); the distribution drive (22) is used to drive the torsion spring distribution seat (21) to rotate from the inclined state to the horizontal state; the loading moving module (31) drives the picking shaft (32) to move to the torsion spring distribution seat (21) in the horizontal state to clamp the torsion spring.

3. The torsion spring assembly of claim 2, wherein: A baffle cylinder (11) is provided at the outlet of the torsion spring vibrating channel (1). The output shaft of the baffle cylinder (11) can extend into the outlet of the torsion spring vibrating channel (1) to close the outlet of the torsion spring vibrating channel (1) when the torsion spring distribution seat (21) is rotated to a horizontal state.

4. The torsion spring assembly of claim 1 or 2, wherein: The output end of the feeding moving module (31) is fixedly connected to a material picking rotation drive (35), and the material picking shaft (32) is connected to the output shaft of the material picking rotation drive (35) so that the material picking shaft (32) is driven to rotate while the material picking shaft (32) descends and contacts the torsion spring.

5. The torsion spring assembly of claim 1 or 2, wherein: The bottom of the material taking shaft (32) is provided with a guide surface or chamfer (321).

6. The torsion spring assembly of claim 1 or 2, wherein: The output end of the torque moving module (41) is fixed with a mounting base plate (44). The contouring shaft (42) drive is swaying on the mounting base plate (44). The contouring shaft (42) drive is a cylinder and its output shaft is connected to a rocker arm (45) by a hinge. The length direction of the rocker arm (45) is fixedly connected to the top end of the contouring shaft (42) and perpendicular to the axial direction of the contouring shaft (42). The mounting base plate (44) is also provided with an adjustable stroke limiter (46). When the rocker arm (45) swings to the limit position under the drive of the contouring shaft (42) drive, it abuts against the stroke limiter (46).

7. The torsion spring assembly of claim 1 or 2, wherein: The bottom end of the contour shaft (42) is provided with a protruding structure. The end face of the protruding structure that contacts the torsion spring arm is divided into two regions by a diagonal: one region is a half-plane portion (421) perpendicular to the axis of the contour shaft (42), and the other region is a half-sloping portion (422) inclined relative to the half-plane portion (421). The included angle between the half-sloping portion (422) and the half-plane portion (421) is 168 degrees to 175 degrees.

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