Chuck mechanism of quick-change tool for suspension spring of prestressing machine

Abstract

The utility model discloses a quick-change tool chuck mechanism for a suspension spring of a prestressing machine, which comprises a tool, the tool comprises a tool main body and a mounting shaft arranged below the tool main body, and a pin position is arranged on the mounting shaft; a shaft hole matched with the mounting shaft is formed in a base of the prestressing machine, the mounting shaft can be inserted into the shaft hole, a pin hole penetrating through the shaft hole is formed in the side face of the base, and the plug pin mechanism is inserted into the pin hole and positioned on a pin position of the mounting shaft to lock the mounting shaft on the base. The tool can be quickly replaced, the replacement time is greatly shortened, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure press suspension spring technology, specifically a quick-change tooling clamping mechanism for high-pressure press suspension spring. Background Technology

[0002] Suspension springs, also known as suspension springs, are crucial components of automotive suspensions and come in many specifications. Suspension springs withstand variable loads during operation, therefore, pressure testing is necessary during suspension spring production. During testing, a fixture corresponding to the spring under test is fixed to the base of a high-pressure press. The spring is then mounted on the fixture, and after testing, the spring is removed. To test other spring models, the fixture must be removed from the high-pressure press, replaced with a fixture corresponding to the spring under test, and the spring is mounted again for testing; this process is repeated. Currently, the fixture and the high-pressure press base are generally connected by bolts. During the installation and removal of the fixture, the bolts need to be repeatedly loosened and tightened, increasing labor costs and reducing work efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a quick-change tooling chuck mechanism for a high-pressure press suspension spring, which enables rapid tooling changes, significantly reduces changeover time, and increases work efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A quick-change tooling chuck mechanism for a high-pressure press suspension spring includes a tooling, characterized in that: the tooling includes a tooling body and an installation shaft disposed under the tooling body, the installation shaft having a pin position; the base of the high-pressure press has a shaft hole matching the installation shaft, the installation shaft can be inserted into the shaft hole, the side of the base has a pin hole penetrating the shaft hole, and a pin mechanism is inserted into the pin hole and positioned on the pin position of the installation shaft to lock the installation shaft onto the base.

[0006] Preferably, the pin mechanism includes a pin sleeve and a pin inserted into the pin sleeve. The outer end of the pin sleeve has a groove that penetrates the inner and outer walls of the pin sleeve. The pin has a protruding limiting block that can move within the groove, and the limiting block is higher than the outer wall of the pin sleeve. The inner end of the pin also has a spring mounting position. The spring is sleeved on the outside of the pin, with one end connected to the outer end of the pin sleeve and the other end connected to the spring mounting position.

[0007] Preferably, a mounting nut is fixed on the base of the high-pressure press, and the pin sleeve is threadedly connected to the mounting nut. This design facilitates the installation and removal of the pin.

[0008] Preferably, the pin is a groove formed along the outer periphery of the mounting shaft, and the shape of the pin end matches the shape of the groove. The cross-sectional shape of the groove shaft can be an inverted right trapezoid or a V-shape.

[0009] Preferably, the upper end of the mounting shaft protrudes outward to form an annular boss, and a positioning hole is formed on the lower surface of the boss. A positioning pin matching the positioning hole is provided on the base. This can prevent the tooling from rotating circumferentially when the press is working.

[0010] Preferably, the tooling body and the mounting shaft are integrally formed, welded, or detachably connected.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. When installing the fixture, insert the mounting shaft into the shaft hole of the base, then rotate the pin to align the limit block with the slot. The pin is pulled inward by the spring and locks the mounting shaft in place, thus completing the installation of the fixture. When disassembling the fixture, pull the pin outward until the limit block exits the slot, then rotate the pin to lock the limit block into the pin sleeve port, releasing the pin from locking the mounting shaft, and then pull out the fixture. The fixture replacement takes only 1 minute, greatly shortening the fixture replacement time, resulting in high work efficiency and saving time and effort.

[0013] 2. The pin structure of this utility model is simple, easy to process and assemble, can be used repeatedly, and has a long service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention when the pin is locked.

[0015] Figure 2 This is a schematic diagram of the structure of the latch of this utility model when it is unlocked;

[0016] Figure 3 This is a schematic diagram of the pin sleeve structure;

[0017] Figure 4 This is a schematic diagram of the pin structure.

[0018] Drawing number identifier:

[0019] 1. Tooling; 11. Tooling body; 12. Mounting shaft; 13. Pin; 14. Positioning hole;

[0020] 2. Base; 21. Shaft hole; 22. Pin hole; 23. Positioning pin;

[0021] 3. Pin mechanism, 31. Pin sleeve, 311. Slot, 32. Pin, 321. Pin cap, 322. Limit block, 323. Spring mounting position, 33. Spring, 34. Mounting nut. Detailed Implementation

[0022] The technical solution of the present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] like Figure 1 , 2 As shown, this utility model discloses a quick-change tooling clamp mechanism for a high-pressure press suspension spring, including a tooling 1. The tooling 1 includes a tooling body 11 and a mounting shaft 12 disposed under the tooling body 11. The tooling body 11 and the mounting shaft 12 can be threaded or fixedly connected, etc. A pin position 13 is provided on the mounting shaft 12. The base 2 of the high-pressure press has a shaft hole 21 circumferentially opened to match the mounting shaft 12, and the mounting shaft 12 can be inserted into the shaft hole 21. A pin hole 22 is provided radially on the base 2, which passes through the shaft hole 21. A pin mechanism 3 is inserted into the pin hole 22 and abuts against the pin position 13 of the mounting shaft 12, thereby locking the mounting shaft 12 onto the base.

[0024] like Figure 3 , 4 As shown, the pin mechanism 3 includes a pin sleeve 31 and a pin 32 inserted into the pin sleeve 31. The outer end of the pin sleeve 31 has a slot 311, which can be a two- or three-pronged structure. The pin 32 has a protruding limiting block 322 that can move within the slot 311. The limiting block 322 is higher than the outer wall of the pin sleeve 31. Thus, when the pin 32 is pulled outwards until it exits the pin position 13, rotating the pin 32 will cause the limiting block 322 to lock outside the pin sleeve 31, preventing the pin 32 from being pulled into the pin position 13 by the spring. The inner end of the pin 32 is also provided with a spring mounting position 323. The spring 33 is sleeved on the outside of the pin 32. One end of the spring 33 is connected to the inside of the pin sleeve 31 and is located at the inward end of the slot 311. The other end of the spring 33 is connected to the spring mounting position 323. When the pin 32 locks the tool 1 onto the base 2, the spring 33 can pull the pin 32 inward. When the pin 32 is not working, that is, when the pin 32 is not inserted into the pin position 13 of the mounting shaft 12, the pin 32 needs to be rotated so that the limiting block 322 is locked outside the pin sleeve 31.

[0025] A mounting nut 34 is fixed on the base 2 of the high-pressure press, and the pin sleeve 31 is threadedly connected to the mounting nut 34 to realize the assembly and disassembly of the pin sleeve 31. In addition, the pin sleeve 31 can be composed of upper and lower parts, which facilitates the installation of the spring 33, the pin 32 and the spring mounting seat 323.

[0026] The outer end face of the pin 32 is provided with a pin cap 321, and the pin 32 is threadedly connected to the pin cap 321.

[0027] The pin 13 is a groove formed along the outer periphery of the mounting shaft 12, and the end shape of the pin 32 matches the shape of the groove.

[0028] The upper outer circumference of the mounting shaft 12 protrudes outward to form an annular boss. A positioning hole 14 is opened on the lower surface of the boss. A positioning post 23 matching the positioning hole 14 is provided on the base 2. The positioning post 23 is used to prevent the tooling 1 from rotating when the press is working.

[0029] The tooling body 11 and the mounting shaft 12 are integrally formed, welded, or detachably connected.

[0030] The working process of this utility model is as follows:

[0031] When installing the fixture, insert the mounting shaft into the shaft hole of the base, then rotate the pin to align the limit block with the slot. The pin is pulled inward by the spring and locks the mounting shaft in place, thus completing the installation of the fixture. When disassembling the fixture, pull the pin outward until the limit block exits the slot, then rotate the pin to lock the limit block into the pin sleeve port, releasing the pin from locking the mounting shaft. The fixture can then be pulled out.

[0032] The above embodiments are merely specific examples to further illustrate the purpose, technical solution, and beneficial effects of this utility model, and the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the disclosure of this utility model are included within the protection scope of this utility model.

Claims

1. A quick-change tooling chuck mechanism for a high-pressure press suspension spring, wherein the mounting shaft (12) of the tooling (1) is located under the tooling body (11) of the tooling (1), characterized in that: The mounting shaft (12) is provided with a pin (13); the base (2) of the high-pressure machine is provided with a shaft hole (21) that matches the mounting shaft (12), the mounting shaft (12) can be inserted into the shaft hole (21), the side of the base (2) is provided with a pin hole (22) that passes through the shaft hole (21), the pin mechanism (3) is inserted into the pin hole (22) and positioned on the pin (13) of the mounting shaft (12) to lock the mounting shaft (12) on the base.

2. The quick-change tooling chuck mechanism for the suspension spring of a high-pressure press according to claim 1, characterized in that: The pin mechanism (3) includes a pin sleeve (31) and a pin (32) inserted into the pin sleeve (31). The outer end of the pin sleeve (31) is provided with a groove (311) that passes through the inner and outer walls of the pin sleeve (31). The pin (32) is provided with a protruding limiting block (322) that can move in the groove (311), and the limiting block (322) is higher than the outer wall of the pin sleeve (31). The inner end of the pin (32) is also provided with a spring mounting position (323). The spring (33) is sleeved on the outside of the pin (32), with one end connected to the outer end of the pin sleeve (31) and the other end connected to the spring mounting position (323).

3. The quick-change tooling chuck mechanism for the suspension spring of a high-pressure press according to claim 2, characterized in that: A mounting nut (34) is fixed on the base (2) of the high-pressure machine, and the pin sleeve (31) is threadedly connected to the mounting nut (34).

4. The quick-change tooling chuck mechanism for the suspension spring of a high-pressure press according to claim 1, characterized in that: The pin (13) is a groove opened along the outer periphery of the mounting shaft (12), and the end shape of the pin (32) matches the shape of the groove.

5. The quick-change tooling chuck mechanism for the suspension spring of a high-pressure press according to claim 1 or 4, characterized in that: The upper outer periphery of the mounting shaft (12) protrudes outward to form an annular boss, and a positioning hole (14) is opened on the lower surface of the boss. A positioning post (23) matching the positioning hole (14) is provided on the base (2).

6. The quick-change tooling chuck mechanism for the suspension spring of a high-pressure press according to claim 1, characterized in that: The tooling body (11) and the mounting shaft (12) are integrally formed, welded, or detachably connected.

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