An auxiliary device for automatically pre-loading small parts using a cylinder

Abstract

This utility model relates to the field of accessory assembly technology, and in particular to an auxiliary device for automatically pre-compressing and assembling small accessories using a cylinder. The device includes a base, a support frame fixedly connected to the upper surface of the base, a cylinder fixedly connected to the support frame, a contact plate fixedly connected to the lower end of the cylinder, and multiple contact blocks fixedly connected to the contact plate. A placement seat is fixedly connected to the upper surface of the base, and multiple threaded cylinders are rotatably connected to the placement seat via bearings. Each threaded cylinder has a threaded post threadedly connected to its upper end, and a connecting block is fixedly connected to each threaded post. The connecting blocks are located directly below the contact blocks and are limited by a limiting mechanism. This utility model limits the maximum stroke of the cylinder's compression movement to prevent over-compression and damage to the small accessories.

Description

Technical Field

[0001] This utility model relates to the field of parts assembly technology, and in particular to an auxiliary device for assembling small parts by automatically pre-pressurizing with a cylinder. Background Technology

[0002] An auxiliary device for automatically pre-pressurizing small parts using cylinders is a type of equipment that combines pneumatic power (cylinders) with automated control logic. It is specifically designed to "pre-apply a set pressure" to assemble small parts (such as miniature clips, small bushings, miniature screws, and small seals). Its core function is to replace manual pressing while simplifying the traditional assembly process.

[0003] When the auxiliary device for pre-pressing small parts is working, the cylinder pushes the piston rod to extend, and its end contacts the small part to apply a preset pressure; the pressure is transmitted through the small part to the assembly position of the workpiece, first completing the pre-pressing embedding, and then realizing the assembly.

[0004] However, the cylinder's driving force is provided by compressed air, and its output force remains relatively stable within its stroke range, with a fast response speed. Without an effective limiting or buffering mechanism, if force continues to be applied after the cylinder-driven component contacts the assembled part, excessive pressure will directly act on the assembled part or small accessory. Once this pressure exceeds its structural strength or the assembly's allowable pressure limit, it will lead to deformation, cracking, surface damage, and ultimately, damage to the small accessory due to excessive cylinder compression. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where excessive cylinder compression causes damage to small parts, and to propose an auxiliary device for assembling small parts using automatic cylinder pre-compression.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an auxiliary device for automatically pre-pressurizing and assembling small parts using a cylinder, including a base, a support frame fixedly connected to the upper surface of the base, a cylinder fixedly connected to the support frame, an abutment plate fixedly connected to the lower end of the cylinder, a plurality of abutment blocks fixedly connected to the abutment plate, a placement seat fixedly connected to the upper surface of the base, a plurality of threaded cylinders rotatably connected to the placement seat via bearings, a threaded post threadedly connected to the upper end of each of the plurality of threaded cylinders, a connecting block fixedly connected to each of the plurality of threaded posts, the plurality of connecting blocks being located directly below the plurality of abutment blocks, and the plurality of connecting blocks being limited by a limiting mechanism.

[0008] Preferably, the limiting mechanism includes a positioning post that passes through the placement seat and is fixedly connected to the connecting block.

[0009] Preferably, the positioning post is provided with scale lines.

[0010] Preferably, the lower ends of the plurality of threaded cylinders are all fixedly connected to pulleys, and a belt is sleeved between the pulleys.

[0011] Preferably, the bearing is a thrust ball bearing.

[0012] Preferably, a rotating sleeve is fixedly connected to the outer wall of one of the threaded cylinders, and multiple anti-slip grooves are equally spaced on the outer wall of the rotating sleeve.

[0013] Preferably, a connecting lug is fixedly connected to the upper surface of the placement seat, a knob is threaded through the connecting lug, and an abutment part is fixedly connected to the end of the knob, the abutment part abutting against the threaded cylinder.

[0014] Preferably, the thread on the threaded post is a trapezoidal thread.

[0015] The present invention proposes an auxiliary device for assembling small parts by automatically pre-compressing with a cylinder. The beneficial effect is that by adjusting the position of the threaded column in the threaded cylinder and adjusting the height of the connecting block, the maximum stroke of the cylinder extrusion movement can be limited during the assembly of small parts, so as to prevent excessive compression and damage to the small parts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an auxiliary device for automatically pre-compressing and assembling small parts using a cylinder, as proposed in this utility model.

[0017] Figure 2 This is a perspective view of an auxiliary device for automatically pre-compressing and assembling small parts using a cylinder, as proposed in this utility model.

[0018] Figure 3 A perspective view of an auxiliary device (with a hidden base) for automatically pre-compressing small parts using a cylinder, as proposed in this utility model;

[0019] Figure 4 This utility model proposes an auxiliary device for automatically pre-loading and assembling small parts using a cylinder. Figure 2 Enlarged view of section A.

[0020] In the diagram: 1. Support frame; 2. Base; 3. Cylinder; 4. Abutment plate; 5. Abutment block; 6. Placement seat; 7. Threaded cylinder; 8. Belt; 9. Pulley; 10. Connecting block; 11. Scale line; 12. Positioning post; 13. Threaded post; 14. Abutment part; 15. Connecting ear; 16. Rotating sleeve; 17. Anti-slip groove; 18. Knob. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1: Refer to Figure 1-4 An auxiliary device for automatically pre-compressing and assembling small parts using a cylinder includes a base 2, a support frame 1 fixedly connected to the upper surface of the base 2, a cylinder 3 fixedly connected to the support frame 1, an abutment plate 4 fixedly connected to the lower end of the cylinder 3, a plurality of abutment blocks 5 fixedly connected to the abutment plate 4, a placement seat 6 fixedly connected to the upper surface of the base 2, a plurality of threaded cylinders 7 rotatably connected to the placement seat 6 via bearings, a threaded post 13 threadedly connected to the upper end of each of the threaded cylinders 7, a connecting block 10 fixedly connected to each of the threaded posts 13, the connecting blocks 10 being located directly below the abutment blocks 5, and the connecting blocks 10 being limited by a limiting mechanism. By adjusting the position of the threaded post 13 in the threaded cylinder 7, the height of the connecting blocks 10 is adjusted so as to limit the maximum stroke of the cylinder 3's extrusion movement during the assembly of small parts, preventing excessive compression and damage to the small parts.

[0023] The limiting mechanism includes a positioning post 12, which passes through the placement seat 6 and is fixedly connected to the connecting block 10. When the threaded cylinder 7 is rotated, the positioning post 12 limits the threaded post 13 to prevent the threaded post 13 from rotating with the threaded cylinder 7.

[0024] Using multiple threaded posts 13 for support helps to distribute the pressure of the cylinder 53 and prevent damage to the threaded connection; at the same time, the threads on the threaded posts 13 are trapezoidal threads, which helps to improve the load-bearing capacity.

[0025] The positioning column 12 is equipped with a scale line 11. Since the height of different accessories after pre-pressing is different, the scale line 11 can be used as a reference to ensure the accuracy of adjusting the position of the connecting block 10.

[0026] During operation, the parts to be processed are placed on the placement seat 6. Based on the height of the assembled and pressed parts, the threaded cylinder 7 is rotated to adjust the position of the threaded column 13, thereby adjusting the height of the connecting block 10. When the connecting block 10 reaches the specified height, the cylinder 3 extends, causing the abutment plate 4 to move downwards and press against the parts. When the abutment block 5 on the abutment plate 4 abuts against the connecting block 10, the abutment plate 4 is limited to prevent excessive compression of the parts.

[0027] Example 2: Refer to Figure 3As another preferred embodiment of the present invention, based on embodiment 1, the lower ends of multiple threaded cylinders 7 are fixedly connected to pulleys 9, and belts 8 are sleeved between the pulleys 9. The pulleys 9 and belts 8 play a transmission role, so that rotating one threaded cylinder 7 can drive the other threaded cylinder 7 to rotate at the same time.

[0028] Example 3: Reference Figure 3 As another preferred embodiment of this utility model, based on embodiment 2, the bearing is a thrust ball bearing. Since the connecting block 10 needs to be limited and supported during operation, the bearing will be subjected to axial force. Therefore, a thrust ball bearing capable of bearing axial force load is adopted.

[0029] Example 4: Reference Figure 4 As another preferred embodiment of this utility model, based on embodiment 3, a rotating sleeve 16 is fixedly connected to the outer wall of one of the threaded cylinders 7. Multiple anti-slip grooves 17 are equally spaced on the outer wall of the rotating sleeve 16. The rotating sleeve 16 is made of rubber material, which is convenient to hold and drive the threaded cylinder 7 to rotate. The anti-slip grooves 17 can increase the roughness of the contact surface with the hand and play an anti-slip role.

[0030] Example 5: In Example 4, because the threaded cylinder 7 was not limited and fixed, it is easy for it to rotate during operation, causing the height of the connecting block 10 to change, thereby affecting the limiting effect on the abutment plate 4. Refer to Figure 4 As another preferred embodiment of this utility model, based on embodiment 1, a connecting ear 15 is fixedly connected to the upper surface of the placement seat 6, and a knob 18 is threaded through the connecting ear 15. An abutment part 14 is fixedly connected to the end of the knob 18. The knob 18 pushes the abutment part 14 to abut tightly against the threaded cylinder 7. The threaded cylinder 7 is fixed by the friction between the two, which can effectively prevent the threaded cylinder 7 from rotating unexpectedly during the operation of the equipment, thereby ensuring that the height of the connecting block 10 always remains stable and avoiding the impact of height deviation on the limiting accuracy of the abutment plate 4.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for the automatic pre-assembly of small accessories with a gas cylinder, comprising a base (2), characterized in that, A support frame (1) is fixedly connected to the upper surface of the base (2). A cylinder (3) is fixedly connected to the support frame (1). A contact plate (4) is fixedly connected to the lower end of the cylinder (3). Multiple contact blocks (5) are fixedly connected to the contact plate (4). A placement seat (6) is fixedly connected to the upper surface of the base (2). Multiple threaded cylinders (7) are rotatably connected to the placement seat (6) via bearings. Threaded columns (13) are threadedly connected to the upper ends of the multiple threaded cylinders (7). Connecting blocks (10) are fixedly connected to the multiple threaded columns (13). The multiple connecting blocks (10) are located directly below the multiple contact blocks (5). The multiple connecting blocks (10) are limited by a limiting mechanism.

2. The auxiliary device for automatic pre-press fitting of small accessories by means of a gas cylinder according to claim 1, characterized in that, The limiting mechanism includes a positioning post (12), which passes through the placement seat (6) and is fixedly connected to the connecting block (10).

3. The auxiliary device for automatically pre-compressing and assembling small parts using a cylinder according to claim 2, characterized in that, The positioning post (12) is provided with scale lines (11).

4. The auxiliary device for automatically pre-compressing and assembling small parts using a cylinder according to claim 1, characterized in that, Each of the multiple threaded cylinders (7) is fixedly connected to a pulley (9) at its lower end, and a belt (8) is sleeved between the pulleys (9).

5. The auxiliary device for automatically pre-compressing small parts using a cylinder according to claim 4, characterized in that, The bearing is a thrust ball bearing.

6. The auxiliary device for automatically pre-compressing and assembling small parts using a cylinder according to claim 4, characterized in that, One of the threaded cylinders (7) has a rotating sleeve (16) fixedly connected to its outer wall, and the rotating sleeve (16) has multiple anti-slip grooves (17) evenly spaced on its outer wall.

7. The auxiliary device for automatically pre-compressing small parts using a cylinder according to claim 6, characterized in that, The upper surface of the placement seat (6) is fixedly connected to a connecting ear (15), and a knob (18) is threaded through the connecting ear (15). The end of the knob (18) is fixedly connected to an abutment part (14), which abuts against the threaded cylinder (7).

8. The auxiliary device for automatically pre-compressing small parts using a cylinder according to claim 1, characterized in that, The thread on the threaded column (13) is a trapezoidal thread.

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