Special-shaped part positioning tool

Abstract

The utility model relates to the technical field of clamping and positioning tools, in particular to a special-shaped part positioning tool which comprises an installation seat, a static pressure block and a dynamic pressure block, the static pressure block and the dynamic pressure block are arranged on the installation seat, a groove is further formed in the installation seat, the static pressure block is arranged in the groove, a static pressure core is further arranged on the static pressure block, and the static pressure core is used for being matched with a concave face of a special-shaped part. The movable pressing block is rotationally arranged on the mounting base, and a movable pressing core is further arranged on the movable pressing block and used for being matched with the convex face of the special-shaped part; the static pressure block is further provided with an elastic adjusting piece, the dynamic pressure block is provided with a locking piece, and when the dynamic pressure block is fixed to the static pressure block through the locking piece, the end face of the dynamic pressure block abuts against the elastic adjusting piece. The special tool can solve the technical problem that an existing special tool for the special-shaped part is difficult to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping and positioning tools, in particular to a positioning tool for special-shaped parts. Background Technique

[0002] Before machining parts, it is often necessary to use clamping tools for clamping to ensure the stability and safety of machining; clamping tools include general jigs and special jigs. Common general jigs include flat-jaw vises, three-jaw self-centering chucks, etc., while special jigs are mostly used for parts with special-shaped outer shapes and are specially fixed according to the outer shape and structural characteristics of the parts. For example, a special-shaped tenon produced by our company, as Figure 1 shown, the tenon includes a to-be-machined end face 101 and an irregular arc-shaped long strip 100. When machining the end face 101, only the arc-shaped long strip 100 can be fixed, and the existing positioning tooling cannot be applied to the arc-shaped long strip structure of this application. Therefore, it is urgent to design a special positioning tooling.

[0003] Currently, for the positioning of special-shaped parts, mainly two positioning surfaces are used. The two positioning surfaces respectively fit the outer wall surfaces of the special-shaped parts to achieve positioning; among them, the two positioning surfaces are respectively arranged on a static pressure block and a dynamic pressure block. A clamping area is formed between the positioning surfaces on the static pressure block and the dynamic pressure block. When in use, the special-shaped part is placed in the clamping area to achieve positioning and clamping. However, this kind of positioning tooling cannot be adjusted, and has high requirements for the size of the special-shaped part and the accuracy of the positioning surface when in use. When the part has slight changes or there are many size specifications, it cannot be used, and a new positioning tooling must be equipped, increasing the tooling cost. Content of the Utility Model

[0004] The utility model provides a positioning tooling for special-shaped parts, which can solve the technical problem that the existing special tooling for special-shaped parts is difficult to adjust.

[0005] The present application provides the following technical solutions:

[0006] The positioning tooling for special-shaped parts includes a mounting base, a static pressure block and a dynamic pressure block arranged on the mounting base. A groove is also formed on the mounting base. The static pressure block is arranged in the groove, and a static pressure core is further arranged on the static pressure block for cooperating with the concave surface of the special-shaped part; the dynamic pressure block is rotatably arranged on the mounting base, and a dynamic pressure core is further arranged on the dynamic pressure block for cooperating with the convex surface of the special-shaped part; an elastic adjusting member is further arranged on the static pressure block, and a locking member is arranged on the dynamic pressure block. When the locking member fixes the dynamic pressure block on the static pressure block, the end face of the dynamic pressure block abuts against the elastic adjusting member.

[0007] Beneficial Effects:

[0008] 1. By setting an elastic adjusting member on the static pressure block and making the end face of the dynamic pressure block abut against the elastic adjusting member, the clamping interval gap formed by the dynamic pressure core and the static pressure core can be adjusted by adjusting the extrusion force of the dynamic pressure block on the elastic adjusting member, so as to make it suitable for clamping and positioning of special-shaped parts with different sizes and thicknesses, broaden the use range of the special-shaped tooling, and save the use cost of equipping multiple toolings. Moreover, since the dynamic pressure block can be adjusted, the precision requirement for the positioning surface of the tooling is reduced, which is beneficial to reducing the manufacturing cost of the tooling.

[0009] 2. The static pressure block and the dynamic pressure block are arranged on the mounting seat. When the pressure core is worn and damaged after long-term use, the pressure block can be removed from the mounting seat, which is beneficial to replacing the new pressure block. In addition, by setting the mounting seat, it is convenient to install the whole tooling in the area to be machined, facilitating the special-shaped parts on the machining tooling.

[0010] 3. The static pressure core is a fixed part for cooperating with the concave surface of the special-shaped part, and the dynamic pressure core is an adjustable part for cooperating with the convex surface of the special-shaped part, which is beneficial to rapid positioning.

[0011] Furthermore, two positioning grooves are provided on the static pressure block, the static pressure core is arranged in the positioning grooves, a positioning convex block is formed between the two positioning grooves, and the elastic adjusting member is arranged on the positioning convex block. The two dynamic pressure blocks are respectively arranged on both sides of the mounting seat, and the free ends of the two dynamic pressure blocks are fixed on the positioning convex block through a locking member.

[0012] Beneficial effects: By setting two positioning grooves on one static pressure block, two special-shaped parts can be clamped and positioned simultaneously, which is beneficial to improving the clamping efficiency. When the concave surface of the special-shaped part cooperates with the static pressure core, the positioning groove can also limit the special-shaped part.

[0013] Furthermore, mounting grooves are provided on two opposite side walls of the groove, mounting parts are provided on the dynamic pressure block, and the mounting parts are rotatably arranged in the mounting grooves through pin shafts. L-shaped avoiding parts are arranged at one ends of the two dynamic pressure blocks close to each other, and the two avoiding parts are mutually engaged.

[0014] Beneficial effects: By making the avoiding parts on the two dynamic pressure blocks mutually engaged, only one locking member needs to be arranged at the engaging part, and the two dynamic pressure blocks can be adjusted and locked simultaneously, improving the adjustment efficiency.

[0015] Furthermore, the locking member is an adjusting bolt, threaded holes are provided on both the avoiding part of the dynamic pressure block and the positioning convex block, and the adjusting bolt is used for connecting with the threaded holes.

[0016] Beneficial effects: By screwing the adjusting bolt to adjust the tightness, the adjustment method is simple and convenient.

[0017] Furthermore, the elastic adjusting member is a compression spring, and the compression spring is arranged at the threaded hole of the positioning convex block.

[0018] Beneficial effects: When gradually tightening the adjusting bolt, the moving pressure block gradually compresses the compression spring, thereby making the moving pressure core fully abut against the convex surface of the special-shaped part; the compression spring has a long service life and a wide adjustable range.

[0019] Further, two moving pressure cores are arranged on each moving pressure block, and the moving pressure cores are arranged along the height direction of the moving pressure block and are spaced apart. The moving pressure cores are used to extend into the positioning grooves to cooperate with the static pressure cores.

[0020] Beneficial effects: By arranging two spaced moving pressure cores on one moving pressure block, it is beneficial to save materials and ensure the pressing effect at the same time.

[0021] Further, three mounting holes are arranged on the side of the moving pressure block close to the static pressure block, and two moving pressure cores are arranged in the upper and lower mounting holes through a connecting shaft.

[0022] Beneficial effects: It is convenient to install two moving pressure cores at the same time and convenient for processing.

[0023] Further, the heights of the moving pressure block and the static pressure block are less than the height of the mounting seat, and the tops of the moving pressure block and the static pressure block are flush with the top of the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the special-shaped part of the present utility model;

[0025] Figure 2 It is a front view of the positioning tooling;

[0026] Figure 3 It is for Figure 2 top view (with the special-shaped part placed) of;

[0027] Figure 4 It is a schematic structural diagram of the positioning tooling;

[0028] Figure 5 It is a schematic structural diagram of the moving pressure block. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following is further detailed through specific embodiments:

[0030] The marks in the attached drawings of the specification include: mounting seat 1, groove 11, static pressure block 2, positioning groove 21, static pressure core 22, positioning convex block 23, moving pressure block 3, mounting part 30, mounting hole 301, pin shaft 31, avoiding part 32, moving pressure core 33, connecting shaft 34, locking part 4, compression spring 5, arc-shaped long strip 100, end face 101.

[0031] Embodiment

[0032] As Figure 2-4As shown in the figure, the special-shaped part positioning tooling includes a mounting base 1, a static pressure block 2 and a dynamic pressure block 3 arranged on the mounting base 1. The heights of the dynamic pressure block 3 and the static pressure block 2 are less than the height of the mounting base 1, and the tops of the dynamic pressure block 3 and the static pressure block 2 are flush with the top of the mounting base 1; as Figure 4 As shown in the figure, a groove 11 is formed on the front surface of the mounting base 1. The static pressure block 2 is fixed in the groove 11 by bolts. A static pressure core 22 is also arranged on the static pressure block 2, and the static pressure core 22 is used to cooperate with the concave surface of the special-shaped part; the dynamic pressure block 3 is rotatably arranged on the mounting base 1, and a dynamic pressure core 33 is also arranged on the dynamic pressure block 3, and the dynamic pressure core 33 is used to cooperate with the convex surface of the special-shaped part; an elastic adjusting member is also arranged on the static pressure block 2. Specifically, the elastic adjusting member is a compression spring 5. A locking member 4 is arranged on the dynamic pressure block 3. When the locking member 4 fixes the dynamic pressure block 3 on the static pressure block 2, the end face 101 of the dynamic pressure block 3 abuts against the compression spring 5.

[0033] Specifically, as Figure 4 As shown in the figure, in this embodiment, two positioning grooves 21 are simultaneously arranged on the static pressure block 2. The static pressure core 22 is arranged in the positioning groove 21. The positioning surface of the static pressure core 22 is an arc structure and is used to cooperate with the arc-shaped concave surface of the special-shaped part; a positioning convex block 23 is formed between the two positioning grooves 21. A threaded hole is arranged on the positioning convex block 23, and the compression spring 5 is arranged at the threaded hole of the positioning convex block 23.

[0034] As Figure 2 As shown in the figure, there are two dynamic pressure blocks 3, which are respectively arranged on both sides of the mounting base 1. The free ends of the two dynamic pressure blocks 3 are fixed on the positioning convex block 23 by the locking member 4. Specifically, mounting grooves are arranged on two opposite side walls of the groove 11. An installation part 30 is arranged on the dynamic pressure block 3, and the installation part 30 is rotatably arranged in the installation groove through a pin shaft 31. L-shaped avoiding parts 32 are arranged at one ends of the two dynamic pressure blocks 3 close to each other, and the two avoiding parts 32 are mutually embedded; threaded holes are also arranged on the two avoiding parts 32. In this embodiment, the locking member 4 is an adjusting bolt. The adjusting bolt sequentially passes through the two dynamic pressure blocks 3 and the compression spring 5, and is threadedly connected with the threaded hole on the positioning convex block 23.

[0035] As Figure 5 As shown in the figure, in this embodiment, two dynamic pressure cores 33 are arranged on each dynamic pressure block 3. The dynamic pressure cores 33 are arranged along the height direction of the dynamic pressure block 3 and are spaced apart. The dynamic pressure cores 33 are used to extend into the positioning groove 21 to cooperate with the static pressure core 22; specifically, three installation holes 301 are arranged on one side of the dynamic pressure block 3 close to the static pressure block 2. The two dynamic pressure cores 33 are arranged in the upper and lower two installation holes 301 through a connecting shaft 34; among them, in this embodiment, the positioning surface of the dynamic pressure core 33 is an arc structure and is used to cooperate with the convex surface of the special-shaped part.

[0036] In use, first use the adjusting bolt to fix the two positioning blocks on the positioning bump 23. At this time, the positioning surface between the dynamic pressure core 33 and the static pressure core 22 forms a clamping area. As Figure 3 shown, then insert the special-shaped part to be processed from the top of the mounting seat 1. The concave surface and the convex surface of the special-shaped part are respectively attached to the static pressure core 22 and the dynamic pressure core 33, and the clamping and positioning can be completed. Finally, move the mounting seat 1 to the processing area and fix it, and then the end face 101 of the special-shaped tenon can be processed.

[0037] The above are only the embodiments of the present invention. The present invention is not limited to the fields involved in this embodiment. Common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. Special-shaped part positioning tooling, characterized in that It includes a mounting base, a static pressure block and a dynamic pressure block arranged on the mounting base. A groove is also formed on the mounting base. The static pressure block is arranged in the groove, and a static pressure core is further arranged on the static pressure block. The static pressure core is used to cooperate with the concave surface of the special-shaped part; the dynamic pressure block is rotatably arranged on the mounting base, and a dynamic pressure core is further arranged on the dynamic pressure block. The dynamic pressure core is used to cooperate with the convex surface of the special-shaped part; an elastic adjusting part is further arranged on the static pressure block, and a locking part is arranged on the dynamic pressure block. When the locking part fixes the dynamic pressure block on the static pressure block, the end face of the dynamic pressure block abuts against the elastic adjusting part.

2. The special-shaped part positioning tooling according to claim 1, wherein: Two positioning grooves are arranged on the static pressure block, and the static pressure core is arranged in the positioning grooves. A positioning convex block is formed between the two positioning grooves, and the elastic adjusting part is arranged on the positioning convex block; there are two dynamic pressure blocks, which are respectively arranged on both sides of the mounting base, and the free ends of the two dynamic pressure blocks are fixed on the positioning convex block through the locking part.

3. The special-shaped part positioning tooling according to claim 2, characterized in that: Mounting grooves are arranged on two opposite side walls of the groove, and a mounting part is arranged on the dynamic pressure block. The mounting part is rotatably arranged in the mounting groove through a pin shaft; L-shaped avoiding parts are arranged at one ends of the two dynamic pressure blocks close to each other, and the two avoiding parts are mutually engaged.

4. The special-shaped part positioning tooling according to claim 3, characterized in that: The locking part is an adjusting bolt, and threaded holes are arranged on the avoiding part of the dynamic pressure block and the positioning convex block. The adjusting bolt is used to connect with the threaded holes.

5. The positioning tooling for special-shaped parts according to claim 4, characterized in that: The elastic adjusting part is a compression spring, and the compression spring is arranged at the threaded hole of the positioning convex block.

6. The positioning tooling for special-shaped parts according to claim 5, characterized in that: Two dynamic pressure cores are arranged on each dynamic pressure block. The dynamic pressure cores are arranged along the height direction of the dynamic pressure block at intervals. The dynamic pressure cores are used to extend into the positioning grooves to cooperate with the static pressure cores.

7. The special-shaped part positioning tooling according to claim 6, characterized in that: Three mounting holes are arranged on one side of the dynamic pressure block close to the static pressure block. The two dynamic pressure cores are arranged in the upper and lower mounting holes through a connecting shaft.

8. The special-shaped part positioning tooling according to claim 7, characterized in that: The heights of the dynamic pressure block and the static pressure block are less than the height of the mounting base, and the tops of the dynamic pressure block and the static pressure block are flush with the top of the mounting base.

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