Torsion spring pulling equipment and motor assembly production line

Abstract

The utility model discloses a tension torsion spring equipment and motor assembly production line relates to motor assembly equipment technical field, wherein tension torsion spring equipment includes base and hook claw subassembly, the hook claw subassembly includes transmission piece and two opposite set hook claw piece, the transmission piece with the base is movably connected, and the transmission piece with the two opposite set hook claw piece is movably connected with the base. The two hook claw pieces are both connected with the base in a sliding mode, and the moving directions of the two hook claw pieces are opposite. According to the technical scheme provided by the utility model, the problems that in the rotor installation process, the pull-open position of the torsion spring is unstable, the torsion spring has the risk of failure, and the rotor installation efficiency is seriously reduced can be solved.

Description

Technical Field

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

[0002] Motors, as devices that convert electrical energy into mechanical energy, are widely used in various fields such as industrial manufacturing, transportation, home appliances, medical equipment, office equipment, consumer electronics, construction and infrastructure, and agriculture. They power industrial equipment such as machine tools, conveying systems, and robots; drive various mechanical components in automobiles, railways, ships, and aerospace; support the operation of home appliances such as washing machines, refrigerators, and air conditioners; assist surgical instruments, diagnostic equipment, and rehabilitation equipment in medical equipment; power printers, copiers, and scanners in office equipment; and operate smartphones, drones, and smart wearable devices in consumer electronics. The high efficiency, reliability, and flexibility of motors make them an indispensable power source in modern society, greatly promoting the development of various industries and improving the convenience of people's lives.

[0003] During motor assembly, good contact between the commutator on the rotor and the carbon brushes in the rubber cover is required. This contact relies on the force applied by the torsion spring. Due to the relatively large overall rotor structure, a dummy shaft is usually used instead of the rotor. The dummy shaft is installed inside the rubber cover to help position and support the internal components of the motor. Then, the torsion spring is pulled open to allow for rotor installation. However, the traditional torsion spring is not always properly positioned, and there is a risk of spring failure, which significantly reduces rotor installation efficiency. Utility Model Content

[0004] The main purpose of this invention is to propose a torsion spring device and a motor assembly line, which aims to solve the problems of unstable torsion spring opening position, risk of torsion spring failure, and serious reduction in rotor installation efficiency during rotor installation.

[0005] To achieve the above objectives, the present invention proposes a tension-torsion spring device, which includes a first base and a claw assembly. The claw assembly includes a transmission component and two opposing claw components. The transmission component is movably connected to the first base, and both claw components are slidably connected to the first base, with the two claw components moving in opposite directions.

[0006] In one embodiment, the transmission member and one of the two claw members are provided with a transmission groove, and the other of the transmission member and the two claw members are provided with a transmission boss that cooperates with the transmission groove, and the transmission boss is slidably disposed in the transmission groove.

[0007] In one embodiment, the first base is provided with a first guide rail, and both of the hooks are provided with a sliding groove that cooperates with the first guide rail. Both hooks are slidably connected to the first guide rail through the sliding groove.

[0008] In one embodiment, the transmission groove is set at an angle to the direction of movement of the transmission member, and the angle ranges from 30° to 60°.

[0009] In one embodiment, each of the two hook members has a hook portion at the end away from the transmission member, the hook portion extending along the movement direction of the hook member, and the hook portion being used to hook and pull the torsion spring.

[0010] In one embodiment, the pawl assembly further includes a drive member having a drive shaft, the drive member being capable of driving the transmission member to move axially along the drive shaft.

[0011] In one embodiment, the outer peripheral wall of the drive shaft is provided with an external thread, the transmission component is provided with a threaded hole that mates with the external thread, and the drive shaft is movably disposed in the threaded hole.

[0012] In one embodiment, the tension-torsion spring device further includes a height adjustment device and a second base. The height adjustment device includes a clamping member and a slider. The slider is connected to the first base. The second base is provided with a second guide rail. The slider is slidably connected to the second guide rail. The clamping member is connected to the slider.

[0013] In one embodiment, the height adjustment device has an elastic element, the two ends of which are respectively connected to the clamping element and the slider.

[0014] This utility model also proposes a motor assembly line, including a tension and torsion spring device.

[0015] This utility model of a torsion spring device is mainly used in motor assembly lines. Its core structure includes a first base and a claw assembly. The first base serves as the supporting part of the entire device, playing a role in fixation and load-bearing. The claw assembly consists of a transmission component and two opposing claw components. The transmission component is movably connected to the first base via a screw structure or a guide rail slider structure, while the two claw components are slidably connected to the first base via guide rail sliders or rollers, and the two claw components move in opposite directions. In actual operation, driven by the transmission component, the two claw components can achieve synchronous and opposite movements, thereby achieving stable opening of the torsion spring. For example, during motor assembly, after the torsion spring is placed in the appropriate position, the device is started. The transmission component drives the claw components to move, and the claw components accurately grasp both ends of the torsion spring and pull it to the predetermined position, providing stable conditions for subsequent rotor installation. Through the design of the claw assembly, the problems of unstable opening position of the torsion spring and high risk of torsion spring failure in traditional motor assembly processes are effectively solved. The opposite and synchronized movement of its claw components ensures that the torsion spring is subjected to uniform force during the pulling process, preventing deformation or damage caused by uneven force. This equipment also significantly improves rotor installation efficiency and reduces production delays and defect rates due to torsion spring issues. Attached Figure Description

[0016] 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of an embodiment of the tension-torsion spring device provided by this utility model;

[0018] Figure 2 A schematic diagram of the structure of an embodiment of the hook assembly provided by this utility model;

[0019] Figure 3 A schematic diagram of another embodiment of the hook assembly provided by this utility model;

[0020] Figure 4 A schematic diagram of an embodiment of the height adjustment device provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Torsion spring device; 1. First base; 2. Claw assembly; 21. Transmission component; 22. Claw component; 21a. Transmission groove; 221. Transmission boss; 11. First guide rail; 22a. Slide groove; 222. Claw part; 23. Driving component; 231. Drive shaft; 3. Height adjustment device; 31. Clamping component; 32. Slider; 4. Second base; 41. Second guide rail; 33. Elastic component.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a tension / torsion spring device 100.

[0028] Please see Figures 1 to 3In one embodiment of the present invention, the tension-torsion spring device 100 includes a first base 1 and a claw assembly 2. The claw assembly 2 includes a transmission member 21 and two claw members 22 arranged opposite to each other. The transmission member 21 is movably connected to the first base 1, and the two claw members 22 are slidably connected to the first base 1, and the movement directions of the two claw members 22 are opposite.

[0029] This utility model's torsion spring device 100 is mainly used in motor assembly lines. Its core structure includes a first base 1 and a claw assembly 2. The first base 1 serves as the support for the entire device, providing fixation and load-bearing capabilities. The claw assembly 2 consists of a transmission component 21 and two opposing claw components 22. The transmission component 21 is movably connected to the first base 1 via a lead screw structure or a guide rail slider 32 structure, while the two claw components 22 are slidably connected to the first base 1 via a guide rail slider 32 or rollers, and their movement directions are opposite. In actual operation, driven by the transmission component 21, the two claw components 22 can achieve synchronous and opposite movements, thereby stably pulling the torsion spring apart. For example, during motor assembly, after placing the torsion spring in the appropriate position, the device is started. The transmission component 21 drives the claw components 22 to move, and the claw components 22 accurately grasp both ends of the torsion spring and pull it apart to a predetermined position, providing stable conditions for subsequent rotor installation. The design of the claw assembly 2 effectively solves the problems of unstable torsion spring opening position and high risk of torsion spring failure during traditional motor assembly. The opposite and synchronized movement of the claw assembly 2 ensures uniform force on the torsion spring during opening, preventing deformation or damage due to uneven force. This equipment also significantly improves rotor installation efficiency and reduces production delays and defect rates caused by torsion spring issues.

[0030] In one embodiment of this utility model, please refer to Figure 2 and Figure 3 The transmission component 21 and one of the two claw components 22 are provided with a transmission groove 21a, and the other of the transmission component 21 and the two claw components 22 are provided with a transmission boss 221 that cooperates with the transmission groove 21a. The transmission boss 221 is slidably disposed in the transmission groove 21a.

[0031] In this embodiment, the connection between the transmission component 21 and the two claw components 22 is achieved through the cooperation of the transmission groove 21a and the transmission boss 221. Specifically, the transmission member 21 has a transmission groove 21a, and the two claw members 22 have transmission bosses 221 that cooperate with the transmission groove 21a; or the transmission member 21 has transmission bosses 221, the two claw members 22 have transmission grooves 21a, and the transmission bosses 221 are slidably disposed in the transmission grooves 21a, so that when the transmission member 21 moves, it can drive the claw members 22 to move through the cooperation of the transmission grooves 21a and the transmission bosses 221; for example, the transmission member 21 can be a plate-shaped structure that moves in a straight line, the transmission member 21 has a transmission groove 21a that is set at an acute angle to its direction of movement, and the two claw members 22 are located on opposite sides of the transmission member 21, and both claw members 22 have transmission bosses 221. Through the movement of the transmission member 21, the transmission bosses 221 move in the transmission grooves 21a, thereby causing the two claw members 22 to move in opposite directions. This structural design makes the motion transmission between the transmission component 21 and the hook component 22 more stable and precise, ensuring that the hook component 22 can move accurately along the predetermined trajectory. This invention achieves a stable connection and precise motion transmission between the transmission component 21 and the hook component 22 through the cooperation of the transmission groove 21a and the transmission boss 221. This design not only improves the stability and reliability of the equipment but also effectively avoids the problem of inaccurate torsion spring opening position caused by loose or misaligned connection between the transmission component 21 and the hook component 22. For example, during motor assembly, the cooperation of the transmission groove 21a and the transmission boss 221 ensures that the hook component 22 maintains a stable force state when opening the torsion spring, thereby improving the service life of the torsion spring and the quality of motor assembly.

[0032] In one embodiment of this utility model, please refer to Figure 3 The first base 1 is provided with a first guide rail 11, and both hooks 22 are provided with a sliding groove 22a that cooperates with the first guide rail 11. Both hooks 22 are slidably connected to the first guide rail 11 through the sliding groove 22a.

[0033] In one embodiment, a first guide rail 11 is provided on the first base 1, and each of the two claw members 22 is provided with a groove 22a that mates with the first guide rail 11. Through the engagement of the groove 22a with the first guide rail 11, the two claw members 22 can slide along the first guide rail 11. Specifically, the first guide rail 11 can be a straight guide rail provided on the first base 1, and its cross-sectional shape can be rectangular or T-shaped, etc., to accommodate different shapes of grooves 22a. The grooves 22a on the claw members 22 are designed according to the shape of the first guide rail 11 to ensure a tight fit. For example, if the first guide rail 11 is a T-shaped guide rail, the groove 22a on the claw members 22 is designed as a T-shaped groove that matches the T-shaped guide rail. When the transmission member 21 drives the claw members 22 to move through the transmission groove 21a and the transmission boss 221, the claw members 22 slide along the first guide rail 11, thereby achieving stable linear motion. This structural design makes the movement trajectory of the claw component 22 more precise, ensuring the accurate opening position of the torsion spring. By setting a first guide rail 11 on the first base 1 and a groove 22a on the claw component 22 that mates with the first guide rail 11, a stable sliding connection of the claw component 22 is achieved. This design significantly improves the stability and accuracy of the movement of the claw component 22, avoiding the problem of inaccurate torsion spring opening position caused by unstable movement of the claw component 22. For example, during motor assembly, when the claw component 22 slides along the first guide rail 11, it ensures that the torsion spring is subjected to uniform force during the opening process, thereby improving the service life of the torsion spring and the quality of motor assembly. Furthermore, this structure facilitates equipment maintenance and adjustment, reducing production costs. For example, if it is necessary to replace the claw component 22 or adjust the guide rail, it can be easily disassembled and installed, making the operation convenient and inexpensive.

[0034] In one embodiment of this utility model, please refer to Figure 3 The transmission groove 21a is set at an angle to the direction of movement of the transmission component 21, and the angle ranges from 30° to 60°.

[0035] In this embodiment, the transmission groove 21a is set at an angle to the movement direction of the transmission member 21, with the angle ranging from 30° to 60°. This design allows the transmission member 21 to transmit its movement direction to the pawl member 22 during movement through the cooperation of the transmission groove 21a and the transmission boss 221, thereby achieving a specific movement trajectory for the pawl member 22. For example, the transmission member 21 can be a part that moves in a straight line, with the transmission groove 21a set on the transmission member 21 at an angle of 30° to 60° to the movement direction of the transmission member 21. When the transmission member 21 moves, the transmission boss 221 in the transmission groove 21a slides along the direction of the transmission groove 21a, thereby driving the pawl member 22 to move along a predetermined trajectory. Specifically, if the angle is 45°, when the transmission member 21 approaches the pawl member 22, the two pawl members 22 will slide in a direction perpendicular to the movement direction of the transmission member 21, achieving stable opening of the torsion spring. This design can adjust the angle according to actual needs to adapt to different torsion spring opening requirements.

[0036] In one embodiment of this utility model, please refer to Figure 2 Both hook parts 22 are provided with hook portions 222 at the ends away from the transmission part 21. The hook portions 222 extend along the movement direction of the hook parts 22 and are used to hook and pull the torsion spring.

[0037] In one embodiment, each of the two claw members 22 has a claw portion 222 at its end away from the transmission member 21. The claw portion 222 extends along the movement direction of the claw member 22 and is used to hook and pull the torsion spring. Specifically, the claw portion 222 can be designed as a hook-shaped or claw-shaped structure, and its shape and size are optimized according to the shape and size of the torsion spring to ensure that the torsion spring can be firmly grasped. For example, the claw portion 222 can be designed as a curved hook with its opening direction consistent with the movement direction of the claw member 22. When the claw member 22 slides along the first guide rail 11, the claw portion 222 can accurately hook both ends of the torsion spring and pull it to a predetermined position. To further improve the gripping ability of the claw portion 222, anti-slip texture or a material with increased friction coefficient can be provided on the inner side of the claw portion 222 to prevent the torsion spring from slipping during the hooking process. By providing claw portions 222 at the ends of the two claw members 22 away from the transmission member 21, the gripping and pulling efficiency of the torsion spring is significantly improved. The claw portion 222 extends along the direction of movement of the claw component 22, ensuring a uniform and stable tension is applied to the torsion spring during movement, preventing deformation or damage to the torsion spring due to insufficient gripping. For example, during motor assembly, the claw portion 222 can precisely grasp both ends of the torsion spring and stably pull it to the predetermined position, thereby improving the accuracy and efficiency of rotor installation. Furthermore, this design offers good adaptability and versatility, suitable for torsion springs of different shapes and sizes. For instance, for thinner torsion springs, the size of the claw portion 222 can be appropriately reduced; for thicker torsion springs, the size of the claw portion 222 can be increased, ensuring the applicability of the equipment in different application scenarios.

[0038] In one embodiment of this utility model, please refer to Figure 2 The hook assembly 2 also includes a drive member 23, which has a drive shaft 231 and is capable of driving the transmission member 21 to move along the axial direction of the drive shaft 231.

[0039] In this embodiment, the claw assembly 2 also includes a drive member 23, which has a drive shaft 231 that drives the transmission member 21 to move axially along the drive shaft 231. Specifically, the drive member 23 can be a power source such as a motor, cylinder, or hydraulic cylinder, which transmits power to the transmission member 21 via the drive shaft 231. For example, if a cylinder is used as the drive member 23, its drive shaft 231 can be connected to the transmission member 21 via a coupling. When the cylinder moves, the drive shaft 231 drives the transmission member 21 to move axially. The transmission member 21 then transmits the motion to the claw members 22 through the cooperation of the transmission groove 21a and the transmission boss 221, causing both claw members 22 to slide along the first guide rail 11, thereby realizing the pulling operation of the torsion spring. This design makes the power transmission of the entire torsion spring tensioning device 100 more efficient, stable, and easier to control. By setting the drive member 23 in the claw assembly 2, precise driving of the transmission member 21 is achieved, thereby improving the automation level and working efficiency of the torsion spring tensioning device 100. The drive component 23 can precisely control the movement speed and stroke of the transmission component 21 according to a preset program or operating instructions, thereby achieving stable and uniform stretching of the torsion spring. For example, during motor assembly, by precisely controlling the motion parameters of the drive component 23, it can be ensured that the torsion spring is subjected to uniform force during stretching, avoiding deformation or damage to the torsion spring due to uneven force, thereby improving the quality and reliability of motor assembly.

[0040] In one embodiment of this utility model, please refer to Figure 2 The outer peripheral wall of the drive shaft 231 is provided with an external thread, and the transmission component 21 is provided with a threaded hole that mates with the external thread. The drive shaft 231 is movably disposed in the threaded hole.

[0041] In one embodiment, the outer peripheral wall of the drive shaft 231 is provided with an external thread, and the transmission member 21 has a threaded hole that mates with the external thread. The drive shaft 231 is movably disposed within the threaded hole. This structure allows the drive shaft 231 of the drive member 23 (such as a motor) to drive the transmission member 21 axially via a threaded transmission. For example, when the drive member 23 is a motor, the motor's drive shaft 231 mates with the threaded hole of the transmission member 21 via an external thread. When the motor rotates, relative motion occurs between the drive shaft 231 and the transmission member 21, thereby pushing the transmission member 21 to move axially along the drive shaft 231. The transmission member 21 then drives the hook member 22 to slide along the first guide rail 11 through the cooperation of the transmission groove 21a and the transmission boss 221, thereby realizing the pulling operation of the torsion spring. This threaded transmission method has high transmission accuracy and stability, ensuring that the movement of the transmission member 21 is smoother and more accurate. The threaded transmission also has a self-locking function, which can keep the position of the transmission member 21 unchanged when the equipment is stopped, improving the safety and reliability of the equipment. For example, if a power outage or malfunction occurs during equipment operation, the self-locking function of the threaded drive can prevent the transmission component 21 from continuing to move due to inertia, thereby protecting the equipment from damage.

[0042] In one embodiment of this utility model, please refer to Figure 4 The tension and torsion spring device 100 also includes a height adjustment device 3 and a second base 4. The height adjustment device 3 includes a clamping member 31 and a slider 32. The slider 32 is connected to the first base 1. The second base 4 is provided with a second guide rail 41. The slider 32 is slidably connected to the second guide rail 41. The clamping member 31 is connected to the slider 32.

[0043] In this embodiment, the torsion spring device 100 further includes a height adjustment device 3 and a second base 4. The height adjustment device 3 is used to adjust the height of the first base 1 and the clamping block to accommodate the assembly requirements of motors of different sizes. Specifically, the height adjustment device 3 includes a clamping member 31 and a slider 32. The slider 32 is connected to the first base 1, while the second base 4 is provided with a second guide rail 41, and the slider 32 is slidably connected to the second guide rail 41. The clamping member 31 is connected to the slider 32, and the clamping block is used to press the rubber cap on the mounting platform to prevent unnecessary displacement of the rubber cap. The second guide rail 41 can be a linear guide rail provided on the second base 4, and the slider 32 is provided with a groove 22a that cooperates with the second guide rail 41. The slider 32 slides on the second guide rail 41 through the groove 22a. The clamping block can be a pressure head adapted to the shape of the rubber cap. The force between the clamping block and the rubber cap is adjusted by adjusting the height of the height adjustment device 3.

[0044] In one embodiment of this utility model, please refer to Figure 4 The height adjustment device 3 has an elastic element 33, and the two ends of the elastic element 33 are respectively connected to the clamping element 31 and the slider 32.

[0045] In one embodiment, the height adjustment device 3 includes not only a clamping member 31 and a slider 32, but also an elastic member 33. The two ends of the elastic member 33 are connected to the clamping member 31 and the slider 32 respectively, providing a certain elastic buffering force when the clamping member 31 presses against the motor cover. Specifically, the elastic member 33 can be a spring or elastic rubber, with one end fixed to the clamping member 31 and the other end fixed to the slider 32. When the clamping member 31 presses down on the motor cover, the spring is compressed, generating an elastic force, thereby providing buffering during the clamping process and preventing damage to the motor cover due to excessive clamping force.

[0046] This utility model also proposes a motor assembly line, which includes a tension and torsion spring device 100. The specific structure of the tension and torsion spring device 100 is as described in the above embodiments. Since this motor assembly line adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tension / torsion spring device, applied in a motor assembly line, characterized in that, The device comprises: a first base (1); and a claw assembly (2) comprising a transmission member (21) and two oppositely arranged claw members (22), the transmission member (21) being movably connected with the first base (1), and each of the two claw members (22) being slidably connected with the first base (1), and the two claw members (22) moving in opposite directions.

2. The torsionally stiff spring apparatus of claim 1 wherein, The transmission member (21) is provided with a transmission groove (21a) at one of the two claw members (22), and the other of the two claw members (22) is provided with a transmission boss (221) matching the transmission groove (21a), and the transmission boss (221) is slidably arranged in the transmission groove (21a).

3. The torsionally stiff spring apparatus of claim 2 wherein, The first base (1) is provided with a first guide rail (11), and each of the two claw members (22) is provided with a sliding groove (22a) matching the first guide rail (11), and each of the two claw members (22) is slidably connected with the first guide rail (11) through the sliding groove (22a).

4. The torsionally stiff spring apparatus of claim 2 wherein, The transmission groove (21a) is arranged at an angle with the moving direction of the transmission member (21), and the angle ranges from 30° to 60°.

5. The torsionally stiff spring apparatus of claim 3 wherein, Each of the two claw members (22) is provided with a claw part (222) at the end away from the transmission member (21), the claw part (222) extends along the moving direction of the claw member (22), and the claw part (222) is used for hooking a torsion spring.

6. The torsionally stiff spring apparatus of any one of claims 1 to 5, wherein, The claw assembly (2) further comprises a driving member (23) having a driving shaft (231), and the driving member (23) can drive the transmission member (21) to move along the axial direction of the driving shaft (231).

7. The torsionally stiff spring apparatus of claim 6 wherein, The outer circumferential wall of the driving shaft (231) is provided with an external thread, the transmission member (21) is provided with a threaded hole matching the external thread, and the driving shaft (231) is movably arranged in the threaded hole.

8. The torsionally stiff spring apparatus of any one of claims 1 to 5, wherein, The torsion spring device further comprises a height adjusting device (3) and a second base (4), the height adjusting device (3) comprises a pressing member (31) and a sliding block (32), the sliding block (32) is connected with the first base (1), the second base (4) is provided with a second guide rail (41), the sliding block (32) is slidably connected with the second guide rail (41), and the pressing member (31) is connected with the sliding block (32).

9. The torsion spring apparatus of claim 8, wherein, The height adjusting device (3) is provided with an elastic member (33), and the two ends of the elastic member (33) are respectively connected with the pressing member (31) and the sliding block (32).

10. A motor assembly line, characterized by, The device comprises the torsion spring device according to any one of claims 1 to 9. The device comprises the torsion spring device according to any one of claims 1 to 9.

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