Elastic jig
By designing the structure of the adjustment components and bushings in the fixture, the problem of spring stress relaxation is solved, and the stable resetting of the fixture seat and the improvement of the use effect is achieved.
Patent Information
- Application Number
- CN202421026630.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The springs in existing fixtures are stress relaxed due to extrusion during long-term use, which affects the reset and use effect of the fixture seat.
An elastic fixture including a base, chrome rod, compression spring, fixture seat, adjustment assembly and bushing is designed. The length of the compression spring is adjusted by adjusting the adjustment assembly to change its stress so that it can effectively drive it during resetting. The fixture seat is restored to its original position.
By adjusting the stress of the spring, ensure stable reset of the fixture seat, extend the service life and improve the effectiveness of the fixture.
Smart Images
Figure CN222289919U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of jigs, and more specifically, to an elastic jig. Background Art
[0002] Jigs are a large category of tools for carpentry, ironwork, fitter, machinery, electric control and some other handicrafts, mainly used as a tool to assist in controlling position or movement. Jigs can be divided into three categories: process assembly jigs, project test jigs and circuit board test jigs. Among them, process assembly jigs include assembly jigs, welding jigs, disassembly jigs, dispensing jigs, irradiation jigs, adjustment jigs and shearing jigs; while project test jigs include life test jigs, packaging test jigs, environmental test jigs, optical test jigs, shielding test jigs, sound insulation test jigs, etc.; circuit board test jigs mainly include ICT test jigs, FCT functional jigs, SMT furnace jigs, BGA test jigs, etc.
[0003] The springs used in some existing jigs are directly installed between the base and the jig seat. During actual use, when pressure is applied to the product, the jig seat moves downward due to the pressure transmitted from the product, which will also squeeze the spring. Long-term and repeated squeezing may cause the spring stress to relax, thereby affecting the resetting of the jig seat and the use of the jig.
[0004] In order to solve the above problems, the present application provides an elastic fixture. Utility Model Content
[0005] The elastic fixture provided in this application adopts the following technical solution:
[0006] An elastic jig comprises a base, chrome-plated rods are symmetrically arranged at the four corners of the top of the base, compression springs are sleeved on the outside of the chrome-plated rods, a jig seat is arranged on the top of the chrome-plated rods, a jig piece is arranged on the top of the jig seat, a groove is opened on the top of the jig piece, a jig ring is arranged inside the groove, and an adjustment component is arranged on the top of the base.
[0007] Furthermore, the adjustment component includes an adjustment knob and a top plate, the interior of the adjustment knob is provided with a connection hole adapted to the chrome-plated rod, and the adjustment knob is sleeved on the exterior of the chrome-plated rod.
[0008] Through the above technical solution, the compression spring can be squeezed by rotating the adjustment component, thereby adjusting the length of the compression spring and changing the stress of the compression spring.
[0009] Furthermore, the bottom end of the top plate is arranged on the top end of the adjusting knob, and the top end of the top plate is fixedly connected to the bottom end of the compression spring.
[0010] Through the above technical solution, during the lifting and lowering adjustment of the top plate, the stretching length of the compression spring can be changed, thereby adjusting the stress of the compression spring.
[0011] Furthermore, a circular hole adapted to the chrome-plated rod is opened inside the top plate, the top plate is sleeved on the outside of the chrome-plated rod, and the top end of the compression spring is arranged at the bottom end of the fixture seat.
[0012] Through the above technical solution, the jig seat can squeeze the compression spring during the downward pressing process, so that it shrinks and deforms to generate a spring.
[0013] Furthermore, a bushing is provided at the bottom end of the adjusting knob, an axial hole matching the chrome-plated rod is provided inside the bushing, and the bushing is sleeved on the bottom of the chrome-plated rod.
[0014] Through the above technical solution, a bushing is provided to play a role as a cushion.
[0015] Furthermore, a fixture bottom column is arranged inside the base, and the top end of the fixture bottom column is arranged at the bottom end of the fixture seat.
[0016] Through the above technical solution, by setting the fixture bottom column, the fixture seat can be stably raised and lowered.
[0017] Furthermore, adjusting column tops are symmetrically arranged on both sides of the fixture bottom column, and the bottom ends of the adjusting column tops are arranged on the top end of the base.
[0018] Through the above technical solution, by setting the adjusting column top, a protective effect can be played to prevent the fixture seat from being subjected to excessive pressure and contacting with the base.
[0019] In summary, this application includes the following beneficial technical effects:
[0020] The utility model is provided with an adjustment component at the top of the base. By rotating the adjustment component, the compression spring can be squeezed, so that the length of the compression spring can be adjusted, thereby changing the stress of the compression spring, so that the compression spring, after compression, can drive the fixture seat to reset, thereby ensuring the use of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of this application;
[0022] Figure 2 For this application Figure 1 A schematic diagram of the structure enlargement at the center A;
[0023] Figure 3 This is a schematic diagram of the top structure of the present application.
[0024] Description of the numbers in the figure:
[0025] 1. Base; 2. Bushing; 3. Adjustment column top; 4. Fixture bottom column; 5. Fixture seat; 6. Fixture piece; 7. Top plate; 8. Compression spring; 9. Chrome-plated rod; 10. Adjustment knob; 11. Fixture ring. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example
[0029] The present application embodiment discloses an elastic fixture. Figure 1 , Figure 2 and Figure 3 , including a base 1, chrome-plated rods 9 are symmetrically arranged at the four corners of the top of the base 1, a compression spring 8 is sleeved on the outside of the chrome-plated rod 9, a fixture seat 5 is arranged on the top of the chrome-plated rod 9, a fixture piece 6 is arranged on the top of the fixture seat 5, a groove is opened on the top of the fixture piece 6, a fixture ring 11 is arranged inside the groove, and an adjustment component is arranged on the top of the base 1.
[0030] See also Figure 1 , Figure 2 and Figure 3The adjusting assembly includes an adjusting knob 10 and a top plate 7 . A connecting hole matching the chrome-plated rod 9 is provided inside the adjusting knob 10 , and the adjusting knob 10 is sleeved on the outside of the chrome-plated rod 9 .
[0031] The chrome-plated rod 9 refers to a rod having a layer of chromium with a hardness of 50-60 formed on the surface of the hard optical axis through electroplating, which is suitable for use with linear bearings in the automation industry. By rotating the adjustment component, the compression spring 8 can be squeezed, thereby adjusting the length of the compression spring 8, thereby changing the stress of the compression spring 8.
[0032] See also Figure 1 , Figure 2 and Figure 3 The bottom end of the top plate 7 is arranged on the top end of the adjusting knob 10 , and the top end of the top plate 7 is fixedly connected to the bottom end of the compression spring 8 .
[0033] During the lifting and lowering adjustment of the top plate 7 , the stretching length of the compression spring 8 can be changed, thereby adjusting the stress of the compression spring 8 .
[0034] See also Figure 1 , Figure 2 and Figure 3 A circular hole adapted to the chrome-plated rod 9 is opened inside the top plate 7 , the top plate 7 is sleeved on the outside of the chrome-plated rod 9 , and the top end of the compression spring 8 is arranged at the bottom end of the fixture seat 5 .
[0035] A threaded line is provided at the bottom of the chrome-plated rod 9, and the connecting groove opened inside the adjusting knob 10 is a threaded groove. When the adjusting knob 10 is rotated, the adjusting knob 10 can move up and down along the outer wall of the chrome-plated rod 9, thereby squeezing the compression spring 8. When the jig seat 5 is pressed down, the compression spring 8 can be squeezed, thereby causing it to shrink and deform to produce a spring.
[0036] See also Figure 1 , Figure 2 and Figure 3 A bushing 2 is provided at the bottom end of the adjusting knob 10 , and an axial hole matching the chrome-plated rod 9 is opened inside the bushing 2 , and the bushing 2 is sleeved on the bottom of the chrome-plated rod 9 .
[0037] By setting the bushing 2, it plays a role of a gasket. At the same time, the bushing 2 is a matching part to achieve the functions of sealing and wear protection. In the moving parts, the parts are worn due to long-term friction. When the gap between the shaft and the hole wears to a certain extent, the parts must be replaced. Therefore, the bushing 2 made of a material with lower hardness and better wear resistance is selected. This can reduce the wear of the shaft and the seat. When the bushing 2 is worn to a certain extent, it is replaced. This can save the cost of replacing the shaft or the seat.
[0038] See also Figure 1 , Figure 2 and Figure 3 A fixture bottom column 4 is arranged inside the base 1 , and the top end of the fixture bottom column 4 is arranged at the bottom end of the fixture seat 5 .
[0039] By providing the fixture bottom column 4, the fixture seat 5 can be stably raised and lowered.
[0040] See also Figure 1 , Figure 2 and Figure 3 The two sides of the fixture bottom column 4 are symmetrically provided with adjustment column tops 3, and the bottom ends of the adjustment column tops 3 are arranged at the top end of the base 1.
[0041] The adjustment column top 3 can provide a protective function to prevent the fixture seat 5 from being subjected to excessive pressure and contacting the base 1 .
[0042] When the electric cylinder applies pressure to the product (the product is mounted on the fixture), the fixture seat 5 moves downward due to the pressure transmitted from the product, and the compression spring 8 also moves downward until the fixture seat 5 contacts the top of the adjustment column 3. The product reaches the required pressure, and the electric cylinder and the fixture are reset.
[0043] The implementation principle of this embodiment is: rotate the adjusting knob 10 clockwise. Since a connecting hole compatible with the chrome-plated rod 9 is provided inside the adjusting knob 10, the adjusting knob 10 moves upward along the outer wall of the chrome-plated rod 9, thereby adjusting the length of the compression spring 8 and changing its stress.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An elastic fixture, comprising a base (1), characterized in that: Chrome-plated rods (9) are symmetrically arranged at the four corners of the top of the base (1), a compression spring (8) is sleeved on the outside of the chrome-plated rod (9), a jig seat (5) is arranged at the top of the chrome-plated rod (9), a jig piece (6) is arranged at the top of the jig seat (5), a groove is formed at the top of the jig piece (6), a jig ring (11) is arranged inside the groove, and an adjustment component is arranged at the top of the base (1).
2. The elastic fixture according to claim 1, characterized in that: The adjustment component comprises an adjustment knob (10) and a top plate (7); a connection hole adapted to the chrome-plated rod (9) is provided inside the adjustment knob (10); and the adjustment knob (10) is sleeved on the outside of the chrome-plated rod (9).
3. The elastic fixture according to claim 2, characterized in that: The bottom end of the top plate (7) is arranged on the top end of the adjusting knob (10), and the top end of the top plate (7) is fixedly connected to the bottom end of the compression spring (8).
4. The elastic fixture according to claim 2, characterized in that: A circular hole adapted to the chrome-plated rod (9) is provided inside the top plate (7), the top plate (7) is sleeved on the outside of the chrome-plated rod (9), and the top end of the compression spring (8) is arranged at the bottom end of the fixture seat (5).
5. The elastic fixture according to claim 2, characterized in that: A bushing (2) is provided at the bottom end of the adjusting knob (10), an axial hole matching the chrome-plated rod (9) is provided inside the bushing (2), and the bushing (2) is sleeved on the bottom of the chrome-plated rod (9).
6. The elastic fixture according to claim 1, characterized in that: A fixture bottom column (4) is arranged inside the base (1), and the top end of the fixture bottom column (4) is arranged at the bottom end of the fixture seat (5).
7. The elastic fixture according to claim 6, characterized in that: Adjustment column tops (3) are symmetrically arranged on both sides of the fixture bottom column (4), and the bottom ends of the adjustment column tops (3) are arranged on the top end of the base (1).