Adjustable positioning fixture for polygon punch position fine grinding
By designing an adjustable positioning fixture for precision grinding of polygonal punches, the problem of insufficient adjustment flexibility of traditional fixtures is solved, and stable clamping and high-precision machining of punches of different specifications are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TONGSHENG MOULD TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-10
Smart Images

Figure CN224476038U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of punch processing technology, specifically relating to an adjustable positioning fixture for precision grinding of polygonal punch positions. Background Technology
[0002] Punching is a metal forming process that uses dies and stamping equipment to apply pressure to materials, causing them to separate or plastically deform, thereby obtaining parts of the desired shape and size. It is typically used for mass production of high-precision, high-consistency workpieces, such as automotive parts and electronic components. The process includes blanking, bending, and stretching operations, and is characterized by high efficiency and low cost, making it suitable for processing materials such as metal sheets, strips, and tubes.
[0003] When precision grinding polygonal punches, the accuracy of clamping and positioning directly affects the machining quality. Traditional fixtures, due to structural design limitations, have insufficient adjustment flexibility, resulting in unsatisfactory limiting effect on polygonal punches and difficulty in meeting high-precision machining requirements. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable positioning fixture for precision grinding of polygonal punch positions, aiming to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable positioning fixture for precision grinding of a polygonal punch, including:
[0007] The clamping mechanism includes a base, a clamping opening on the top of the base, a punch that is engaged inside the clamping opening, two first threaded holes on one side of the base, a first screw threaded into the first threaded holes and used to further limit the position of the punch, and two side holes on the other side of the base.
[0008] The adjustment mechanism includes a lifting component for adjusting the clamping height of polygonal punches of different specifications.
[0009] As a preferred embodiment of the present invention, the punch component includes a punch body that is snapped into the clamping port, and a slot formed on the surface of the punch body and used in conjunction with the first screw to limit the position of the punch body.
[0010] As a preferred embodiment of this utility model, a storage groove is provided at the bottom of the inner cavity of the clamping port, a vertical groove is provided at the bottom of the storage groove, a square groove is provided on one side of the vertical groove, and a second threaded hole is provided on the surface of the base, the second threaded hole communicating with the square groove.
[0011] As a preferred embodiment of this utility model, the lifting component includes a second screw threaded into the second threaded hole, an extrusion block with a bearing installed at the end of the second screw and located inside a square groove, a lifting rod disposed inside the vertical groove and used in conjunction with the extrusion block, and a support plate fixedly installed on the top of the lifting rod for supporting the punch body.
[0012] In a preferred embodiment of this utility model, the support plate is located inside the storage groove, and the contact surfaces of the extrusion block and the lifting rod are both set at an angle.
[0013] As a preferred embodiment of this utility model, a guide block is fixedly installed at the bottom of the extrusion block, and a guide groove is provided at the bottom of the square groove cavity to limit the movement of the extrusion block in conjunction with the guide block.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the clamping port is used to clamp and limit the punch parts; the cooperation between the first threaded hole and the first screw is used to adjust and limit the punch parts of different sizes, thereby improving the stability of the punch body during processing; the lifting component is used to support and position punch parts of different specifications, avoiding poor clamping stability of punch parts of different specifications inside the clamping port, which would affect their stability during fine grinding. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort. Among them:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a side view of the base structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the punch component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of this utility model;
[0020] Figure 5 This is a schematic diagram of the lifting component structure of this utility model.
[0021] In the diagram: 100, clamping mechanism; 110, base; 120, clamping port; 130, punch component; 131, punch body; 132, bayonet; 140, first threaded hole; 150, first screw; 160, side hole; 170, storage groove; 180, vertical groove; 190, second threaded hole; 200, adjusting mechanism; 210, lifting component; 211, second screw; 212, extrusion block; 213, lifting rod; 214, support plate; 215, guide block. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0025] Example
[0026] Reference Figure 1-5 This embodiment of the present invention provides an adjustable positioning fixture for precision grinding of a polygonal punch, comprising:
[0027] The clamping mechanism 100 includes a base 110, a clamping opening 120 opened on the top of the base 110, a punch 130 snapped into the clamping opening 120, two first threaded holes 140 opened on one side of the base 110, a first screw 150 threaded into the first threaded holes 140 and used to further limit the punch 130, and two side holes 160 opened on the other side of the base 110.
[0028] The adjustment mechanism 200 includes a lifting component 210 for adjusting the clamping height of polygonal punches of different specifications.
[0029] The clamping port 120 is used to clamp and limit the punch 130. The cooperation between the first threaded hole 140 and the first screw 150 is used to adjust and limit the punch 130 of different sizes, thereby improving the stability of the punch body 131 during processing. The lifting component 210 is used to support and position the punch 130 of different specifications, so as to avoid poor clamping stability of the punch 130 of different specifications inside the clamping port 120, which would affect its stability during fine grinding.
[0030] Specifically, the punch component 130 includes a punch body 131 that is snapped into the clamping port 120, and a slot 132 that is formed on the surface of the punch body 131 and used in conjunction with the first screw 150 to limit the position of the punch body 131.
[0031] Furthermore, a storage groove 170 is provided at the bottom of the inner cavity of the clamping port 120, a vertical groove 180 is provided at the bottom of the storage groove 170, a square groove is provided on one side of the vertical groove 180, and a second threaded hole 190 is provided on the surface of the base 110, which communicates with the square groove.
[0032] The support plate 214 is stored in the storage slot 170, and the support plate 214 is raised and lowered by the second threaded hole 190 in conjunction with the second screw 211.
[0033] Preferably, the lifting component 210 includes a second screw 211 threaded inside the second threaded hole 190, an extrusion block 212 bearing mounted on the end of the second screw 211 and located inside the square groove, a lifting rod 213 disposed inside the vertical groove 180 and used in conjunction with the extrusion block 212, and a support plate 214 fixedly mounted on the top of the lifting rod 213 for supporting the punch body 131.
[0034] When clamping and limiting punch bodies 131 of different specifications, since the punch bodies 131 of different specifications have different sizes, it is necessary to align the bayonet 132 with the first threaded hole 140. First, rotate the second screw 211. With the cooperation of the second threaded hole 190, the second screw 211 drives the pressing block 212 to move. Then, the pressing block 212 will press or loosen the lifting rod 213, so that the lifting rod 213 drives the support plate 214 to rise or fall, so as to adjust the working height of the support plate 214 and facilitate the support of punch bodies 131 of different specifications.
[0035] Furthermore, the support plate 214 is located inside the storage groove 170, and the contact surfaces of the extrusion block 212 and the lifting rod 213 are both set at an angle.
[0036] By setting the contact surfaces of the extrusion block 212 and the lifting rod 213 to be inclined, it is easier for the extrusion block 212 to extrude the lifting rod 213, making it easier for the lifting rod 213 to move upward.
[0037] Furthermore, a guide block 215 is fixedly installed at the bottom of the extrusion block 212, and a guide groove is provided at the bottom of the square groove cavity to limit the movement of the extrusion block 212 in conjunction with the guide block 215.
[0038] The guide block 215 and the guide groove cooperate to limit the extrusion block 212, improve the stability of the extrusion block 212 when it extrudes the lifting rod 213, and avoid deviation, which would affect the support stability of the support plate 214 on the punch body 131.
[0039] In use, the clamping port 120 is used to clamp and limit the punch 130. The cooperation between the first threaded hole 140 and the first screw 150 is used to adjust and limit the punch 130 of different sizes, thereby improving the stability of the punch body 131 during processing. The lifting component 210 is used to support and position the punch 130 of different specifications, so as to avoid poor clamping stability of the punch 130 of different specifications inside the clamping port 120, which would affect its stability during fine grinding.
[0040] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0041] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0042] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An adjustable positioning fixture for precision grinding of a polygonal punch, characterized in that: include, The clamping mechanism (100) includes a base (110), a clamping port (120) opened on the top of the base (110), a punch (130) snapped into the clamping port (120), two first threaded holes (140) opened on one side of the base (110), a first screw (150) threaded into the first threaded holes (140) and used to further limit the punch (130), and two side holes (160) opened on the other side of the base (110). The adjustment mechanism (200) includes a lifting component (210) for adjusting the clamping height of polygonal punches of different specifications.
2. The adjustable positioning fixture for precision grinding of the polygonal punch position according to claim 1, characterized in that: The punch component (130) includes a punch body (131) that is snapped into the clamping port (120), and a clasp (132) that is formed on the surface of the punch body (131) and used in conjunction with the first screw (150) to limit the punch body (131).
3. The adjustable positioning fixture for precision grinding of the polygonal punch position according to claim 2, characterized in that: The bottom of the inner cavity of the clamping port (120) is provided with a storage groove (170), the bottom of the storage groove (170) is provided with a vertical groove (180), a square groove is provided on one side of the vertical groove (180), and a second threaded hole (190) is provided on the surface of the base (110), which communicates with the square groove.
4. The adjustable positioning fixture for precision grinding of the polygonal punch position according to claim 3, characterized in that: The lifting component (210) includes a second screw (211) threaded inside the second threaded hole (190), an extrusion block (212) with a bearing installed at the end of the second screw (211) and located inside the square groove, a lifting rod (213) disposed inside the vertical groove (180) and used in conjunction with the extrusion block (212), and a support plate (214) fixedly installed on the top of the lifting rod (213) for supporting the punch body (131).
5. The adjustable positioning fixture for precision grinding of the polygonal punch position according to claim 4, characterized in that: The support plate (214) is located inside the storage groove (170), and the contact surfaces of the extrusion block (212) and the lifting rod (213) are both set at an angle.
6. The adjustable positioning fixture for precision grinding of the polygonal punch position according to claim 5, characterized in that: The bottom of the extrusion block (212) is fixedly installed with a guide block (215), and the bottom of the square groove cavity is provided with a guide groove for limiting the movement of the extrusion block (212) in conjunction with the guide block (215).