An assembly device

Abstract

This invention discloses an assembly device, including a base, a first placement component, a second placement component, and a positioning mechanism. The first placement component is disposed on the base, and the second placement component is disposed on the first placement component. The upper end of the first placement component has a first groove for placing a torsion spring, and the upper end of the second placement component has a second groove for placing a fastener. The upper end of the base has a third groove for placing a tail buckle. The torsion spring has a first arm and a second arm, and the tail buckle has a hooking portion corresponding to the second arm. The positioning mechanism can drive the first arm to move upward so that the second arm hooks onto the hooking portion, causing the first arm to twist to a first position. When the arm body is subjected to external force, it can move horizontally towards the torsion spring to the first position so that the connecting hole on it is coaxial with the connecting hole on the tail buckle, so that the end of the first arm and the arm body closest to it abuts. This assembly device has a high degree of automation and high precision, and can greatly improve assembly efficiency and save production costs.

Description

Technical Field

[0001] This invention belongs to the technical field of hinge assembly equipment, and particularly relates to an assembly device. Background Technology

[0002] A hinge, also known as a joint, is a mechanical device used to connect two solid objects and allow relative rotation between them. The structure of a conventional hinge includes an arm, a torsion spring, a tail clip, and a latch. During assembly, the arm, torsion spring, tail clip, and latch need to be assembled together with nails. Before this, the connecting holes on the arm, tail clip, and latch need to be aligned with the axis of the torsion spring to facilitate subsequent nailing. Currently, assembly is generally carried out manually in conjunction with semi-automatic equipment, which not only results in low production efficiency but also makes the assembly of the product subject to human constraints, greatly affecting the quality of the product. Summary of the Invention

[0003] The purpose of this invention is to provide an assembly apparatus that can solve the above-mentioned problems.

[0004] To achieve the above objectives, an assembly device is provided in an embodiment of the present invention, comprising a base, a first placement component, a second placement component, and a positioning mechanism;

[0005] The first placement component is disposed on the base, and the second placement component is disposed on the first placement component, with the upper ends of both extending from the upper end of the base. The upper end of the first placement component is provided with a first groove for placing a horizontally positioned torsion spring, and the upper end of the second placement component is provided with a second groove for placing a fastener. The upper end of the base is formed with a third groove for placing a tail buckle. When the tail buckle is placed in the third groove, it engages with the fastener. The connecting holes on the tail buckle and the fastener are coaxial with the torsion spring.

[0006] The torsion spring has a first arm and a second arm at both ends. The first arm is located on the side away from the buckle and is inclined upward. The second arm is vertically arranged. The tail buckle is provided with a hooking part corresponding to the second arm.

[0007] The positioning mechanism can drive the first arm to move upward, thereby causing the torsion spring to rotate, so that the second arm is attached to the attachment part, and so that the first arm is twisted to the first position;

[0008] The upper end of the base can be used to place the arm body, which corresponds to the first arm. When the arm body is subjected to external force, it can move horizontally to the first position in the direction of the torsion spring, so that the connecting hole on it is coaxial with the connecting hole on the tail buckle, so that the first arm and the arm body near the first arm abut against each other.

[0009] Optionally, it further includes a pushing mechanism, which includes a first driving component, a second driving component, and a pushing arm. The pushing arm corresponds to the end of the arm body away from the torsion spring. The output end of the first driving component is connected to the pushing arm and can drive the pushing arm to move up and down. The output end of the second driving component is connected to the first driving component, and the second driving component can drive the first driving component to move the pushing arm horizontally towards the torsion spring to the first position.

[0010] Optionally, the upper end of the base is provided with an upwardly protruding protrusion, the protrusion and the second object holder form the third groove, the side of the protrusion facing the tail buckle is provided with a movable hole, a pressure spring and a pressure plate are provided in the movable hole, the pressure plate is subjected to the pressure spring and abuts against the tail buckle.

[0011] Optionally, the positioning mechanism includes a pressing arm and a pushing arm. The base is provided with a movable opening that extends through its upper and lower ends and corresponds to the arm body. The pressing arm is located at the movable opening. The side of the pressing arm facing the torsion spring is provided with a limiting part corresponding to the torsion spring. The pressing arm can move horizontally in a straight line towards the torsion spring so that the limiting part and the first groove form a space, and the torsion spring can rotate in the space.

[0012] The pusher arm is located on the side of the pressing arm corresponding to the first arm and is inclined upward. The pusher arm can move upward along its inclined direction to push the torsion spring to rotate and the first arm to twist.

[0013] Optionally, the positioning mechanism further includes a lifting plate, which is adapted to the movable opening and connected to the pusher arm and the pressing arm. The lifting plate can move up and down, and its movement has a second position, a third position and a fourth position arranged sequentially from bottom to top.

[0014] When the lifting plate moves from the second position to the third position, it can drive the pressing arm and the pushing arm to move horizontally in the direction of the torsion spring;

[0015] When the lifting plate moves from the third position to the fourth position, it can drive the pusher arm to move upward along its tilt direction.

[0016] Optionally, the positioning mechanism further includes a trigger, which is disposed below the base. The lower end of the lifting plate is provided with a rolling element, and the upper end of the trigger is provided with an upwardly inclined ramp. The rolling element can climb from the lower end of the ramp to the upper end of the ramp to drive the lifting plate to move upward from the second position to the third position and the fourth position.

[0017] Optionally, the positioning mechanism further includes a return spring, the two ends of which abut against the base and the lifting plate. When the rolling element disengages from the ramp, the return spring can drive the lifting plate to move from the fourth position through the third position to the second position.

[0018] Optionally, the upper end of the lifting plate is provided with an opening, and the pressure arm is disposed at the opening. The opening causes the upper end of the lifting plate to form two connecting walls. The connecting walls are provided with a first guide hole and a second guide hole that are inclined away from the torsion spring. The first guide hole and the second guide hole have the same inclination angle. Two first guide holes are provided at intervals along the movement direction of the pressure arm, and the second guide hole is located above the first guide hole.

[0019] The movable port has a third guide hole on the inner wall corresponding to the first guide hole. The third guide hole is arranged along the movement direction of the pressing arm. The pressing arm is provided with a first connector corresponding to the first guide hole. The two ends of the first connector pass through the corresponding first guide hole and extend into the corresponding third guide hole.

[0020] The pressure arm has a guide groove on the side facing the push arm. The guide groove is inclined in the same direction as the push arm. The push arm is disposed in the guide groove. The inner bottom wall of the guide groove has a first clearance hole arranged in its inclined direction. The push arm has a second connector with one end passing through the first clearance hole. The two ends of the second connector extend into the corresponding second guide holes.

[0021] Optionally, a vertically arranged second clearance hole is provided at the lower end of the first guide hole, and the lower end of the first guide hole is connected to the upper end of the second clearance hole; a fourth guide hole is provided at the lower end of the second guide hole, and the second guide hole is connected to the end of the fourth guide hole away from the torsion spring.

[0022] Optionally, the pressure arm has an inclined surface on the side facing the torsion spring that is inclined away from the torsion spring, and the limiting part is disposed on the inclined surface and close to the upper end of the inclined surface. The limiting part is an arc-shaped groove adapted to the outer wall of the torsion spring.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the assembly device enables the torsion spring to be coaxial with the connecting holes on the arm body, buckle and tail buckle, and the positioning mechanism enables the second arm to be attached to the attachment part, so that the first arm is twisted to the first position and connected to the arm body, thereby facilitating subsequent nailing operations, with high degree of automation, high precision, and can greatly improve assembly efficiency and save production costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the invention with the reset spring hidden.

[0026] Figure 2 This is a schematic diagram of the hidden push mechanism in this invention.

[0027] Figure 3 This is an exploded view of the base, elastic element, and pressure plate in this invention.

[0028] Figure 4 This is an exploded view of the pressing arm, pushing arm, and lifting plate in this invention.

[0029] Figure 5 This is a schematic diagram of the positioning mechanism in this invention.

[0030] Figure 6 This is a schematic diagram of the connection between the first and second objects in this invention.

[0031] Figure 7 This is a perspective view of the first mounting base in this invention.

[0032] In the picture:

[0033] 100. Base; 110. Type III groove; 120. Protrusion; 121. Movable hole; 122. Compression spring; 123. Pressure plate; 124. Fixing block; 130. Movable opening; 131. Third guide hole;

[0034] 200. First placement component; 210. First groove; 211. Notch; 212. Chamfer; 220. Adsorption component;

[0035] 300. Second storage component; 310. Second type of slot;

[0036] 400. Positioning mechanism; 410. Pressure arm; 411. Limiting part; 412. First connecting piece; 413. Inclined surface; 420. Pushing arm; 421. Guide groove; 422. First clearance hole; 423. Second connecting piece; 430. Lifting plate; 431. Rolling part; 432. Opening; 433. Connecting wall; 434. First guide hole; 435. Second guide hole; 436. Second clearance hole; 437. Fourth guide hole; 440. Trigger; 441. Ramp; 450. Return spring;

[0037] 500. Pushing mechanism; 510. First drive assembly; 511. First mounting base; 5111. First through hole; 5112. Second through hole; 512. First cylinder; 520. Second drive assembly; 521. Second mounting base; 5211. Guide block; 522. Second cylinder; 530. Pushing arm; 531. Guide part; 532. Extension part; 533. Pressing part;

[0038] 600, Torsion spring; 610, First arm; 620, Second arm;

[0039] 700, Arms and Body;

[0040] 800, backing plate;

[0041] 900, Tail buckle; 910, Hanging part. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0043] In the description of the embodiments of the present invention, it should be understood that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the embodiments of the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0046] like Figures 1-7 As shown, an embodiment of the present invention provides an assembly device, including a base 100, a first placement component 200, a second placement component 300, a positioning mechanism 400, and a pushing mechanism 500.

[0047] The first placement component 200 is disposed on the base 100, and the second placement component 300 is disposed on the first placement component 200. Specifically, it is sleeved on the first placement component 200. The first placement component 200 and the second placement component 300 are fixed to the base 100 by pins. Different models of the first placement component 200 and the second placement component 300, i.e., different sizes of the first groove 210 and the second groove 310, can be replaced to accommodate the assembly of torsion springs 600 of different sizes. It should be noted that, of course, the two can also be disposed as a single unit in some embodiments. Furthermore, the base 100 is fixed on a turntable (not shown in the figure) and rotates with the turntable to process the various parts of each hinge.

[0048] Furthermore, the upper ends of the first placement member 200 and the second placement member 300 extend from the upper end of the base 100. The upper end of the first placement member 200 is provided with a first groove 210 for placing a horizontally positioned torsion spring 600, and the upper end of the second placement member 300 is provided with a second groove 310 for placing a fastener 800. The upper end of the base 100 is formed with a third groove 110 for placing a tail buckle 900. Specifically, the upper end of the base 100 is provided with an upwardly protruding protrusion 120. The extension 120 is located on the side of the tail buckle 900 facing away from the buckle piece 800. The extension 120 and the second placement member 300 form a third groove 110. Furthermore, when the tail buckle 900 is placed in the third groove 110, it engages with the buckle piece 800. The connecting holes on the tail buckle 900 and the buckle piece 800 are coaxial with the torsion spring 600. It should be noted that the torsion spring 600 and the buckle piece 800 are placed in their respective positions by corresponding robotic arms, and the tail buckle 900 is engaged with the buckle piece 800 by corresponding robotic arms.

[0049] Furthermore, the torsion spring 600 has a first arm 610 and a second arm 620 disposed at both ends thereon. The first arm 610 is located on the side away from the fastener 800 and is inclined upward, while the second arm 620 is vertically disposed. Specifically, the first groove 210 is U-shaped. It should be understood that a notch 211 is provided on the side wall corresponding to the first arm 610. When the torsion spring 600 is placed in the first groove 210, the first arm 610 abuts against the notch 211, thereby limiting the initial state of the torsion spring 600 and ensuring the accuracy of assembly.

[0050] It should be noted that holes are provided on the inner wall of the first type of groove 210 and the side wall of the second placement member 300 facing the fastener 800. At the holes, there is an adsorption member 220 for adsorbing the torsion spring 600. Specifically, the adsorption member 220 is preferably a magnet, which prevents the torsion spring 600 and the fastener 800 from shifting, improves the stability of the torsion spring 600 and the fastener 800, and improves the assembly efficiency.

[0051] Furthermore, the tail buckle 900 is provided with a hook part 910 corresponding to the second arm 620. The positioning mechanism 400 can drive the first arm 610 to move upward, so as to drive the torsion spring 600 to rotate, so that the second arm 620 hooks onto the hook part 910, so that the first arm 610 is twisted to the first position.

[0052] Furthermore, the upper end of the base 100 can accommodate the arm body 700, which corresponds to the first arm 610. When the arm body 700 is subjected to external force, it can move horizontally to the first position in the direction of the torsion spring 600, so that the connecting hole on it is coaxial with the connecting hole on the tail buckle 900, so that the first arm 610 and the arm body 700 near it abut against each other. It should be noted that the end of the arm body 700 facing the torsion spring 600 is provided with a bayonet (not shown in the figure) corresponding to the first arm 610. When the arm body 700 moves to the first position, the first arm 610 abuts against the bayonet.

[0053] Furthermore, the nail is passed through the connecting holes on the arm body 700, the tail buckle 900, the buckle plate 800, and the hollow position of the torsion spring 600 by the needle-threading device, thereby assembling the four together. It should be noted that the needle-threading device and the aforementioned robotic arm are existing technologies and will not be described in detail here.

[0054] This assembly device enables the torsion spring 600 to be coaxial with the connecting holes on the arm body 700, the buckle 800, and the tail buckle 900. Through the positioning mechanism 400, the second arm 620 can be attached to the attachment part 910, and the first arm 610 can be twisted to the first position to connect with the arm body 700. This facilitates subsequent nailing operations, has a high degree of automation and high precision, and can greatly improve assembly efficiency and save production costs.

[0055] In one embodiment, the pushing mechanism 500 includes a first driving component 510, a second driving component 520, and a pushing arm 530. The pushing arm 530 corresponds to the end of the arm body 700 away from the torsion spring 600. The output end of the first driving component 510 is connected to the pushing arm 530 and can drive the pushing arm 530 to move up and down. The output end of the second driving component 520 is connected to the first driving component 510 and can drive the first driving component 510 to move the pushing arm 530 horizontally towards the torsion spring 600. Position, that is, when the corresponding robotic arm places the arm body 700 on the upper end of the base 100, the first drive assembly 510 drives the push arm 530 downward to the end of the arm body 700 away from the torsion spring 600. Further, the second drive assembly 520 drives the first drive assembly 510 to drive the push arm 530 to push the arm body 700 towards the torsion spring 600 to the first position, so that the first arm 610 and the end of the arm body 700 close to the first arm 610 abut against each other, and the connecting hole on the arm body 700 is concentric with the connecting hole on the tail buckle 900.

[0056] Specifically, the first drive assembly 510 includes a first mounting base 511 and a vertically arranged first cylinder 512. The first cylinder 512 is fixed on the first mounting base 511. The push arm includes a guide portion 531, an extension portion 532, and a pressing portion 533. The first mounting base 511 is provided with a first through hole 5111 that is adapted to the guide portion 531. The guide portion 531 passes through the first through hole 5111 and is connected to the output end of the first cylinder 512. The extension portion 532 is located at the lower end of the guide portion 531 and extends downward. The pressing portion 533 is located on the side of the guide portion 531 facing the torsion spring 600 and extends in the direction of the torsion spring 600. The pressing portion 533 corresponds to the upper end of the arm body 700, and the extension portion 532 corresponds to the end of the arm body 700 away from the torsion spring 600.

[0057] The second drive assembly 520 includes a second mounting base 521 and a second cylinder 522. The second mounting base 521 is provided with a guide block 5211 arranged in a horizontal direction. The first mounting base 511 is provided with a second through hole 5112 that matches the guide block 5211. The second cylinder 522 is horizontally fixed on the second mounting base 521, and its cylinder rod is connected to the first mounting base 511.

[0058] During operation, the first cylinder 512 drives the push arm 530 to move downward so that the extension 532 corresponds to the end of the arm body 700 away from the torsion spring 600. Further, the second cylinder 522 drives the first mounting seat 511 to push the extension 532 to the arm body 700 to the first position. Further, the first cylinder 512 drives the push arm 530 to move downward again so that the pressing part 533 presses on the upper end of the arm body 700, thereby limiting the arm body 700 to ensure the accuracy and stability during nailing.

[0059] Furthermore, the protruding part 120 has a movable hole 121 on the side facing the tail buckle 900. A pressure spring 122 and a pressure plate 123 are installed in the movable hole 121. The pressure plate 123 is subjected to the pressure spring 122 and abuts against the tail buckle 900. That is, the pressure plate 123 presses the tail buckle 900 and the buckle piece 800 against the object to prevent the tail buckle 900 and the buckle piece 800 from falling off, ensuring the accuracy and stability of subsequent nailing. Specifically, the movable hole 121 passes through the protruding part 120. A fixing block 124 corresponding to the movable hole 121 is provided on the side of the protruding part 120 away from the tail buckle 900. The fixing block 124 is detachable. The two ends of the pressure spring 122 abut against the pressure plate 123 and the fixing block 124 respectively, so that the pressure plate 123 can extend and retract. The fixing block 124 facilitates the disassembly and assembly of the pressure spring 122 and the pressure plate 123, which is convenient for subsequent maintenance and replacement.

[0060] In one embodiment, the positioning mechanism 400 includes a pressing arm 410 and a pushing arm 420. The base 100 is provided with a movable opening 130 that extends through its upper and lower ends and corresponds to the arm body 700. The pressing arm 410 is located at the movable opening 130. The side of the pressing arm 410 facing the object is provided with a limiting part 411 corresponding to the torsion spring 600. The pressing arm 410 can move horizontally in a straight line towards the torsion spring 600 so that the limiting part 411 and the first groove 210 form a space, and the torsion spring 600 can rotate in the space.

[0061] Furthermore, the pusher arm 420 is located on the side of the pressure arm 410 corresponding to the first arm 610, and is inclined upward. The pusher arm 420 can move upward along its inclined direction to push the torsion spring 600 to rotate and the first arm 610 to twist. Specifically, the second arm 620 abuts against the side wall of the first groove 210 corresponding to the second arm 620, so that the second arm 620 is hooked on the hook part 910. Furthermore, the first arm 610 is twisted to the installation position connected to the arm body 700 of the hinge. That is, through the cooperation of the pressure arm 410 and the pusher arm 420, the first arm 610 and the second arm 620 can be rotated to the corresponding installation position for positioning, so as to facilitate the assembly of the torsion spring 600. This can avoid the first arm 610 being damaged due to excessive force, and can greatly improve the service life. The overall design is reasonable, the structure is simple and stable, and it can improve assembly efficiency and reduce costs.

[0062] In one embodiment, the positioning mechanism 400 further includes a lifting plate 430, which is adapted to the movable opening 130 to ensure the stability of the lifting plate 430 moving up and down, and is connected to the pusher arm 420 and the pressing arm 410. The lifting plate 430 can move up and down, and its movement has a second position, a third position and a fourth position arranged sequentially from bottom to top.

[0063] When the lifting plate 430 moves from the second position to the third position, it can drive the pressing arm 410 and the pushing arm 420 to move horizontally in the direction of the torsion spring 600, so as to reduce the stroke of the pushing arm 420.

[0064] When the lifting plate 430 moves from the third position to the fourth position, it can drive the pusher arm 420 to move upward along its tilt direction, so as to push the torsion spring 600, so that the second arm 620 is attached to the attachment part 910, and further torsion the first arm 610. The structure is compact and stable.

[0065] In one embodiment, the positioning mechanism 400 further includes a trigger 440, which is disposed below the base 100. A rolling element 431 is disposed at the lower end of the lifting plate 430, and an upwardly inclined ramp 441 is disposed at the upper end of the trigger 440. The rolling element 431 can climb from the lower end to the upper end of the ramp 441, thereby driving the lifting plate 430 to move upward from the second position to the third and fourth positions. That is, the ramp 441 compresses the rolling element 431, driving the lifting plate 430 to move upward. This design is simple, ingenious, reduces costs, facilitates maintenance and replacement, saves energy, and is adaptable to different environments. It can precisely control the force of the pusher arm 420, avoiding damage to the first arm 610 on the torsion spring 600 due to excessive or insufficient force. Specifically, the rolling element 431 is preferably a bearing, which improves the smoothness of operation and extends its service life.

[0066] In one embodiment, the positioning mechanism 400 further includes a return spring 450. The two ends of the return spring 450 abut against the base 100 and the lifting plate 430. Specifically, the lower end of the lifting plate 430 is provided with a step (not shown in the figure). The upper end of the step and the lower end of the base 100 are provided with corresponding slots. The upper and lower ends of the return spring 450 extend into the corresponding slots respectively. When the rolling element 431 is disengaged from the ramp 441, the return spring 450 can drive the lifting plate 430 to move from the fourth position through the third position to the second position, so that the lifting plate 430 is reset, which facilitates the operation of subsequent processes. It has the advantages of simple and reliable structure, low cost and energy saving and environmental protection.

[0067] In one embodiment, the upper end of the lifting plate 430 is provided with an opening 432, and the pressing arm 410 is provided at the opening 432. The opening 432 forms two connecting walls 433 at the upper end of the lifting plate 430. The connecting walls 433 are provided with a first guide hole 434 and a second guide hole 435 that are inclined in a direction away from the torsion spring 600. The first guide hole 434 and the second guide hole 435 have the same inclination angle. There are two first guide holes 434 spaced apart along the movement direction of the pressing arm 410, and the second guide hole 435 is located above the first guide hole 434.

[0068] Furthermore, the movable opening 130 has a third guide hole 131 on its inner wall corresponding to the first guide hole 434. The third guide hole 131 is arranged along the movement direction of the pressure arm 410, that is, it is arranged laterally. The pressure arm 410 is provided with a first connector 412 corresponding to the first guide hole 434, that is, there are two first connectors 412. The two first connectors 412 can support the pressure arm 410 and prevent it from rotating. Furthermore, the two ends of the first connector 412 pass through the corresponding first guide hole 434 and extend into the corresponding third guide hole 131. The function of the guide hole 131 is to guide the first connecting member 412 so that it moves linearly along the horizontal plane. When the lifting plate 430 moves from the second position to the third position, the first guide hole 434 will squeeze the first connecting member 412 and push the first connecting member 412 towards the torsion spring 600. It should be noted that the distance between the two first connecting members 412 is less than the length of the third guide hole 131. When the lifting plate 430 moves to the third position, the end of the third guide hole 131 near the torsion spring 600 abuts against the first connecting member 412 near the torsion spring 600 to limit the movement and improve stability.

[0069] Furthermore, a guide groove 421 is provided on the side of the pressing arm 410 facing the pushing arm 420. The guide groove 421 is inclined in the same direction as the pushing arm 420. The pushing arm 420 is set in the guide groove 421 to ensure the stability of the pushing arm 420 and to save space. Furthermore, a first clearance hole 422 is provided on the inner bottom wall of the guide groove 421 along its inclined direction. A second connector 423 is provided on the pushing arm 420 with one end passing through the first clearance hole 422. The first clearance hole 422 plays the role of clearance and limiting the second connector. Furthermore, the two ends of the second connector 423 extend into the corresponding second guide holes 435. When the first guide hole 434 presses the first connector 412, the second guide hole 435 simultaneously presses the second connector 423, so that the second connector 423 moves synchronously in the direction of the torsion spring 600. It has the advantages of simple and stable structure, easy production and processing, and low production cost.

[0070] It should be noted that both the first connector 412 and the second connector 423 are preferably cylindrical pins, and the first guide hole 434 and the second guide hole 435 are adapted to the first connector 412 and the second connector 423.

[0071] Furthermore, a vertically arranged second clearance hole 436 is provided at the lower end of the first guide hole 434, and the lower end of the first guide hole 434 is connected to the upper end of the second clearance hole 436; a fourth guide hole 437 is provided horizontally at the lower end of the second guide hole 435, and the end of the second guide hole 435 and the end of the fourth guide hole 437 away from the torsion spring 600 are connected. The function of the second clearance hole 436 is to limit and avoid the first connecting member 412 when the lifting plate 430 moves from the third position to the fourth position, so that when the pressure arm 410 limits the torsion spring 600, the lifting plate 430 can still move upward. Furthermore, the second connecting member 423 is driven through the fourth guide hole 437, which drives the pusher arm 420 to move upward in the inclined direction, so as to push the first arm 610 to rotate to the installation position.

[0072] In one embodiment, the pressure arm 410 has an inclined surface 413 on the side facing the torsion spring 600, which is inclined away from the torsion spring 600. A limiting part 411 is provided on the inclined surface 413 and is close to the upper end of the inclined surface 413. The limiting part 411 is an arc-shaped groove adapted to the outer wall of the torsion spring 600. It should be noted that the height of the side wall of the first groove 210 near the limiting part 411 is lower than the side wall away from the limiting part 411, so that the limiting part 411 can interact with the torsion spring 600. The spring 600 is connected, and the side wall of the first groove 210 near the limiting part 411 is provided with a chamfer 212 that can fit with the inclined surface 413 for limiting. Furthermore, when the chamfer 212 fits with the inclined surface 413, the side wall of the first groove 210 away from the limiting part 411 and the upper end of the inclined surface 413 form a notch 211, and the second arm 620 extends out from the notch 211. The width of the notch 211 is smaller than the diameter of the torsion spring 600 to prevent the torsion spring 600 from falling off.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembly apparatus, characterized in that, It includes a base, a first placement component, a second placement component, and a positioning mechanism; The first placement component is disposed on the base, and the second placement component is disposed on the first placement component, with the upper ends of both extending from the upper end of the base. The upper end of the first placement component is provided with a first groove for placing a horizontally positioned torsion spring, and the upper end of the second placement component is provided with a second groove for placing a fastener. The upper end of the base is formed with a third groove for placing a tail buckle. When the tail buckle is placed in the third groove, it engages with the fastener. The connecting holes on the tail buckle and the fastener are coaxial with the torsion spring. The torsion spring has a first arm and a second arm at both ends. The first arm is located on the side away from the buckle and is inclined upward. The second arm is vertically arranged. The tail buckle is provided with a hooking part corresponding to the second arm. The positioning mechanism can drive the first arm to move upward, thereby causing the torsion spring to rotate, so that the second arm is attached to the attachment part, and so that the first arm is twisted to the first position; The upper end of the base can be used to place the arm body, which corresponds to the first arm. When the arm body is subjected to external force, it can move horizontally to the first position in the direction of the torsion spring, so that the connecting hole on it is coaxial with the connecting hole on the tail buckle, so that the first arm and the arm body near the first arm abut against each other. The positioning mechanism includes a pressing arm and a pushing arm. The base is provided with a movable opening that extends through its upper and lower ends and corresponds to the arm body. The pressing arm is located at the movable opening. The side of the pressing arm facing the torsion spring is provided with a limiting part corresponding to the torsion spring. The pressing arm can move horizontally in a straight line towards the torsion spring so that the limiting part and the first groove form a space, and the torsion spring can rotate in the space. The pusher arm is located on the side of the pressing arm corresponding to the first arm, and is inclined upward. The pusher arm can move upward along its inclined direction to push the torsion spring to rotate and the first arm to twist. The positioning mechanism also includes a lifting plate, which is adapted to the movable port and connected to the pusher arm and the pressing arm. The lifting plate can move up and down, and its movement has a second position, a third position and a fourth position arranged sequentially from bottom to top. When the lifting plate moves from the second position to the third position, it can drive the pressing arm and the pushing arm to move horizontally in the direction of the torsion spring; When the lifting plate moves from the third position to the fourth position, it can drive the pusher arm to move upward along its tilt direction.

2. The assembly apparatus according to claim 1, characterized in that, Also includes: The pushing mechanism includes a first driving component, a second driving component, and a pushing arm. The pushing arm corresponds to the end of the arm body away from the torsion spring. The output end of the first driving component is connected to the pushing arm and can drive the pushing arm to move up and down. The output end of the second driving component is connected to the first driving component and can drive the first driving component to move the pushing arm horizontally towards the torsion spring to the first position.

3. The assembly apparatus according to claim 1, characterized in that, The upper end of the base is provided with an upwardly protruding protrusion. The protrusion and the second object form the third groove. The side of the protrusion facing the tail buckle is provided with a movable hole. A pressure spring and a pressure plate are provided in the movable hole. The pressure plate is subjected to the pressure spring and abuts against the tail buckle.

4. The assembly apparatus according to claim 1, characterized in that, The positioning mechanism further includes a trigger element, which is disposed below the base. A rolling element is disposed at the lower end of the lifting plate, and an upwardly inclined ramp is disposed at the upper end of the trigger element. The rolling element can climb from the lower end of the ramp to the upper end of the ramp to drive the lifting plate to move upward from the second position to the third position and the fourth position.

5. The assembly apparatus according to claim 4, characterized in that, The positioning mechanism also includes a return spring, the two ends of which abut against the base and the lifting plate. When the rolling element disengages from the ramp, the return spring can drive the lifting plate to move from the fourth position through the third position to the second position.

6. The assembly apparatus according to claim 1, characterized in that, The upper end of the lifting plate is provided with an opening, and the pressure arm is provided at the opening. The opening forms two connecting walls at the upper end of the lifting plate. The connecting walls are provided with a first guide hole and a second guide hole that are inclined away from the torsion spring. The first guide hole and the second guide hole have the same inclination angle. Two first guide holes are provided at intervals along the movement direction of the pressure arm, and the second guide hole is located above the first guide hole. The movable port has a third guide hole on the inner wall corresponding to the first guide hole. The third guide hole is arranged along the movement direction of the pressing arm. The pressing arm is provided with a first connector corresponding to the first guide hole. The two ends of the first connector pass through the corresponding first guide hole and extend into the corresponding third guide hole. The pressure arm has a guide groove on the side facing the push arm. The guide groove is inclined in the same direction as the push arm. The push arm is disposed in the guide groove. The inner bottom wall of the guide groove has a first clearance hole arranged in its inclined direction. The push arm has a second connector with one end passing through the first clearance hole. The two ends of the second connector extend into the corresponding second guide holes.

7. The assembly apparatus according to claim 6, characterized in that, The lower end of the first guide hole is provided with a vertically arranged second clearance hole, and the lower end of the first guide hole is connected to the upper end of the second clearance hole; the lower end of the second guide hole is provided with a fourth guide hole, and the second guide hole is connected to the end of the fourth guide hole away from the torsion spring.

8. The assembly apparatus according to claim 1, characterized in that, The pressure arm has an inclined surface on the side facing the torsion spring that is inclined away from the torsion spring. The limiting part is disposed on the inclined surface and is close to the upper end of the inclined surface. The limiting part is an arc-shaped groove that is adapted to the outer wall of the torsion spring.

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