Positioning clamp for square frame machining

Abstract

The utility model relates to the field of clamps, and provides a square frame machining positioning clamp which comprises a moving structure, a rotating structure and a clamping structure, the moving structure is installed on a supporting seat, the rotating structure is installed on the moving structure, and the clamping structure is installed on the rotating structure; the second inner clamping block and the fourth inner clamping block are arranged to be fixed clamping blocks, and the first outer clamping block and the third outer clamping block are arranged to be fixed clamping blocks, so that a workpiece can be directly placed on the rotating seat during preliminary positioning, and is preliminarily positioned by the second inner clamping block, the fourth inner clamping block, the first outer clamping block and the third outer clamping block; the positioning procedure is simplified; and meanwhile, a first inner clamping block and a third inner clamping block are arranged to be sliding clamping blocks, and a second outer clamping block and a fourth outer clamping block are arranged to be sliding clamping blocks, so that the workpiece can be clamped after preliminary positioning, the workpiece is prevented from moving in the tapping process, and the machining precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of jigs, in particular to a positioning jig for square machining. [[ID=]5]Background Technique

[0002] As shown in the attached Figure 1 The workpiece to be machined is a rectangular workpiece with a sharp blade-shaped bottom, and a semi-circular hole needs to be opened on the non-blade side. When opening a hole in the prior art, the side of the workpiece needs to be placed downward, and the hole is opened from the top or the side. After each hole is opened, the workpiece needs to be repositioned, which seriously affects the work efficiency, and each repositioning will generate a positioning error, affecting the machining quality of the product. Summary of the Utility Model

[0003] The utility model provides a positioning jig for square machining. By setting the second inner clamping block and the fourth inner clamping block as fixed clamping blocks, and the first outer clamping block and the third outer clamping block as fixed clamping blocks, the workpiece can be directly placed on the rotating seat during preliminary positioning and preliminarily positioned by the second inner clamping block, the fourth inner clamping block, the first outer clamping block and the third outer clamping block, which simplifies the positioning process. At the same time, the first inner clamping block and the third inner clamping block are set as sliding clamping blocks, and the second outer clamping block and the fourth outer clamping block are set as sliding clamping blocks, which can clamp the workpiece after preliminary positioning to prevent the workpiece from moving during the hole-opening process, effectively improving the machining accuracy. At the same time, anti-collision rubber strips are arranged on the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the first outer clamping block, the second outer clamping block, the third outer clamping block and the fourth outer clamping block of the present application, effectively protecting the workpiece from being damaged during the machining process. At the same time, a rotating structure and a moving structure are also provided, and during the hole-opening process, it is not necessary to remove the workpiece for repositioning or adjust the tool to open holes on four surfaces, further improving the machining accuracy.

[0004] The technical solution of the utility model is realized as follows:

[0005] A positioning jig for square machining, comprising: a support seat;

[0006] It further includes a moving structure, a rotating structure and a clamping structure. The moving structure is installed on the support seat, the rotating structure is installed on the moving structure, and the clamping structure is installed on the rotating structure;

[0007] The clamping structure includes a first inner clamping block, a first clamping cylinder, a second inner clamping block, a third inner clamping block, a second clamping cylinder, a fourth inner clamping block, a first outer clamping block, a second outer clamping block, a third clamping cylinder, a third outer clamping block, a fourth outer clamping block and a fourth clamping cylinder;

[0008] The rotating structure includes a rotating base. The first inner clamping block and the third inner clamping block are slidably mounted relative to each other on the rotating base. The first clamping cylinder and the second clamping cylinder are oppositely mounted on the rotating base. The first clamping cylinder is connected to the first inner clamping block, and the second clamping cylinder is connected to the third inner clamping block. The second inner clamping block and the fourth inner clamping block are oppositely mounted on the rotating base.

[0009] The first outer clamping block and the third outer clamping block are oppositely mounted on the rotating base. The first outer clamping block is adjacent to the first inner clamping block, and the third outer clamping block is adjacent to the third inner clamping block. The second outer clamping block and the fourth outer clamping block are slidably mounted relative to each other on the rotating base. The second outer clamping block is adjacent to the second inner clamping block, and the fourth outer clamping block is adjacent to the fourth inner clamping block. The third clamping cylinder is connected to the second outer clamping block, and the fourth clamping cylinder is connected to the fourth outer clamping block.

[0010] The workpiece is clamped within the space formed by the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the first outer clamping block, the second outer clamping block, the third outer clamping block, and the fourth outer clamping block.

[0011] Furthermore, anti-collision rubber strips are attached to the outer sides of the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the inner sides of the first outer clamping block, the second inner clamping block, the third outer clamping block, and the fourth outer clamping block.

[0012] Furthermore, the rotating structure further includes a rotating cylinder. The rotating cylinder is vertically mounted on the moving structure, and the rotating base is mounted on the top of the rotating cylinder.

[0013] Furthermore, the moving structure includes a moving base and a pushing cylinder. The pushing cylinder is mounted on the support base, and the moving base is slidably mounted on the support base.

[0014] The rotating cylinder is mounted on the moving base.

[0015] Furthermore, limiting guide rods are symmetrically arranged on the support base, and collar rings are symmetrically arranged on the moving base. The collar rings are sleeved on the guide rods.

[0016] A sliding groove is arranged on the support base, and a sliding block is arranged at the bottom of the moving base. The sliding block is slidably mounted within the sliding groove.

[0017] Even further, the lengths of the first inner clamping block and the third inner clamping block are less than or equal to the distance between the second inner clamping block and the fourth inner clamping block.

[0018] The lengths of the first outer clamping block and the third outer clamping block are less than or equal to the distance between the second outer clamping block and the fourth outer clamping block.

[0019] Furthermore, a rotating wall is provided at the bottom of the rotating seat, and a rotating groove is provided at the top of the moving seat. The rotating wall is rotatably installed in the rotating groove.

[0020] In the utility model, the second inner clamping block and the fourth inner clamping block are set as fixed clamping blocks, the first outer clamping block and the third outer clamping block are set as fixed clamping blocks. During preliminary positioning, the workpiece can be directly placed on the rotating seat and preliminarily positioned by the second inner clamping block, the fourth inner clamping block, the first outer clamping block, and the third outer clamping block, simplifying the positioning process. At the same time, the first inner clamping block and the third inner clamping block are set as sliding clamping blocks, and the second outer clamping block and the fourth outer clamping block are set as sliding clamping blocks, which can clamp the workpiece after preliminary positioning to prevent the workpiece from moving during the hole-opening process, effectively improving the machining accuracy. At the same time, anti-collision rubber strips are provided on the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the first outer clamping block, the second outer clamping block, the third outer clamping block, and the fourth outer clamping block, effectively protecting the workpiece from damage during the machining process. At the same time, a rotating structure and a moving structure are also provided, so that during the hole-opening process, it is not necessary to remove the workpiece for repositioning or adjust the tool to open holes on four surfaces, further improving the machining accuracy. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural view of the processed part clamped by a square processing positioning fixture in a specific embodiment of the present utility model;

[0023] Figure 2 It is a top view of the structure of a square processing positioning fixture in a specific embodiment of the present utility model;

[0024] Figure 3 is Figure 1 a front view of the structure of a square processing positioning fixture shown;

[0025] Figure 4 is Figures 1-2 a side view of the structure of the cooperation state of the support seat and the moving seat of a square processing positioning fixture shown;

[0026] Description of the reference numerals: support base 1; guide rod 11; chute 12; moving structure 2; moving seat 21; rotating groove 211; collar 212; slider 213; pushing cylinder 22; rotating structure 3; rotating seat 31; rotating wall 311; rotating cylinder 32; clamping structure 4; first inner clamping block 41; first clamping cylinder 411; second inner clamping block 42; third inner clamping block 43; second clamping cylinder 431; fourth inner clamping block 44; first outer clamping block 45; second outer clamping block 46; third clamping cylinder 461; third outer clamping block 47; fourth outer clamping block 48. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0028] In a specific embodiment of the present invention, see Figures 2-4 , a positioning fixture for square processing, comprising: a support base 1;

[0029] It further includes a moving structure 2, a rotating structure 3 and a clamping structure 4. The moving structure 2 is installed on the support base 1, the rotating structure 3 is installed on the moving structure 2, and the clamping structure 4 is installed on the rotating structure 3;

[0030] The clamping structure 4 includes a first inner clamping block 41, a first clamping cylinder 411, a second inner clamping block 42, a third inner clamping block 43, a second clamping cylinder 431, a fourth inner clamping block 44, a first outer clamping block 45, a second outer clamping block 46, a third clamping cylinder 461, a third outer clamping block 47, a fourth outer clamping block 48 and a fourth clamping cylinder 481;

[0031] The rotating structure 3 includes a rotating seat 31. The first inner clamping block 41 and the third inner clamping block 43 are relatively slidably installed on the rotating seat 31. The first clamping cylinder 411 and the second clamping cylinder 431 are relatively installed on the rotating seat 31. The first clamping cylinder 411 is connected to the first inner clamping block 41, and the second clamping cylinder 431 is connected to the third inner clamping block 43. The second inner clamping block 42 and the fourth inner clamping block 44 are relatively installed on the rotating seat 31;

[0032] The first outer clamping block 45 and the third outer clamping block 47 are oppositely installed on the rotating base 31. The first outer clamping block 45 is adjacent to the first inner clamping block 41, and the third outer clamping block 47 is adjacent to the third inner clamping block 43. The second outer clamping block 46 and the fourth outer clamping block 48 are relatively slidably installed on the rotating base 31. The second outer clamping block 46 is adjacent to the second inner clamping block 42, and the fourth outer clamping block 48 is adjacent to the fourth inner clamping block 44. The third clamping cylinder 461 is connected to the second outer clamping block 46, and the fourth clamping cylinder 481 is connected to the fourth outer clamping block 48.

[0033] The workpiece is clamped within the space formed by the first inner clamping block 41, the second inner clamping block 42, the third inner clamping block 43, the fourth inner clamping block 44, the first outer clamping block 45, the second outer clamping block 46, the third outer clamping block 47, and the fourth outer clamping block 48.

[0034] In a specific embodiment of the present invention, see Figures 2-4 , anti-collision rubber strips are attached to the outer sides of the first inner clamping block 41, the second inner clamping block 42, the third inner clamping block 43, the fourth inner clamping block 44, the inner sides of the first outer clamping block 45, the second inner clamping block 46, the third outer clamping block 47, and the fourth outer clamping block 48.

[0035] In a specific embodiment of the present invention, see Figures 2-4 , the rotating structure 3 further includes a rotating cylinder 32. The rotating cylinder 32 is vertically installed on the moving structure 2, and the rotating base 31 is installed on the top of the rotating cylinder 32.

[0036] In a specific embodiment of the present invention, see Figures 2-4 , the moving structure 2 includes a moving base 21 and a pushing cylinder 22. The pushing cylinder 22 is installed on the support base 1, and the moving base 21 is slidably installed on the support base 1;

[0037] The rotating cylinder 32 is installed on the moving base 21.

[0038] In a specific embodiment of the present invention, see Figures 2-4 , the support base 1 is symmetrically provided with limiting guide rods 11, and the moving base 21 is symmetrically provided with collar rings 212. The collar rings 212 are sleeved on the guide rods 11;

[0039] The support base 1 is provided with a sliding groove 12, and the bottom of the moving base 21 is provided with a sliding block 213. The sliding block 213 is slidably installed in the sliding groove 12.

[0040] In a specific embodiment of the present invention, seeFigures 2-4 , the lengths of the first inner clamping block 41 and the third inner clamping block 43 are less than or equal to the distance between the second inner clamping block 42 and the fourth inner clamping block 44;

[0041] The lengths of the first outer clamping block 45 and the third outer clamping block 47 are less than or equal to the distance between the second outer clamping block 46 and the fourth outer clamping block 48.

[0042] In a specific embodiment of the present invention, see Figures 2-4 , in order to improve the rotation stability of the rotating seat, a rotating wall 311 is provided at the bottom of the rotating seat 31, and a rotating groove 211 is provided at the top of the moving seat 21, and the rotating wall 311 is rotatably installed in the rotating groove 211.

[0043] In a specific embodiment of the present invention, see Figures 2-4 , before work, the first clamping cylinder, the second clamping cylinder, the third clamping cylinder and the fourth clamping cylinder act. Among them, the first clamping cylinder and the second clamping cylinder drive the first inner clamping block and the third inner clamping block to contract inward, and the third clamping cylinder and the fourth clamping cylinder drive the second outer clamping block and the fourth outer clamping block to move outward, leaving a positioning space;

[0044] Then the workpiece is placed into the positioning space;

[0045] Then the first clamping cylinder, the second clamping cylinder, the third clamping cylinder and the fourth clamping cylinder act again to clamp the workpiece;

[0046] Then the hole opening work starts;

[0047] Since in this application, the second inner clamping block, the fourth inner clamping block in the inner layer and the first outer clamping block, the third outer clamping block in the outer layer are set as the clamping blocks with fixed positions, the preliminary positioning of the workpiece is simpler. At the same time, the first inner clamping block, the third inner clamping block in the inner layer and the second outer clamping block, the fourth outer clamping block in the outer layer are set as the adjustable clamping blocks, which can clamp the workpiece;

[0048] This positioning fixture has a simple structure and high positioning efficiency, effectively improving the work efficiency.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning fixture for square box processing, comprising: Support base; It is characterized in that: it further includes a moving structure, a rotating structure and a clamping structure. The moving structure is installed on the support base, the rotating structure is installed on the moving structure, and the clamping structure is installed on the rotating structure; The clamping structure includes a first inner clamping block, a first clamping cylinder, a second inner clamping block, a third inner clamping block, a second clamping cylinder, a fourth inner clamping block, a first outer clamping block, a second outer clamping block, a third clamping cylinder, a third outer clamping block, a fourth outer clamping block and a fourth clamping cylinder; The rotating structure includes a rotating base. The first inner clamping block and the third inner clamping block are relatively slidably installed on the rotating base. The first clamping cylinder and the second clamping cylinder are relatively installed on the rotating base. The first clamping cylinder is connected to the first inner clamping block, and the second clamping cylinder is connected to the third inner clamping block; the second inner clamping block and the fourth inner clamping block are relatively installed on the rotating base; The first outer clamping block and the third outer clamping block are relatively installed on the rotating base. The first outer clamping block is adjacent to the first inner clamping block, and the third outer clamping block is adjacent to the third inner clamping block; the second outer clamping block and the fourth outer clamping block are relatively slidably installed on the rotating base. The second outer clamping block is adjacent to the second inner clamping block, and the fourth outer clamping block is adjacent to the fourth inner clamping block; the third clamping cylinder is connected to the second outer clamping block, and the fourth clamping cylinder is connected to the fourth outer clamping block; The workpiece is clamped in the space formed by the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the first outer clamping block, the second outer clamping block, the third outer clamping block and the fourth outer clamping block.

2. The positioning fixture for square processing according to claim 1, characterized in that: Anti-collision rubber strips are attached to the outer sides of the first inner clamping block, the second inner clamping block, the third inner clamping block, the fourth inner clamping block, the inner sides of the first outer clamping block, the second inner clamping block, the third outer clamping block and the fourth outer clamping block.

3. A positioning fixture for square processing according to claim 1, characterized in that: The rotating structure further includes a rotating cylinder. The rotating cylinder is vertically installed on the moving structure, and the rotating base is installed on the top of the rotating cylinder.

4. The positioning fixture for square box machining according to claim 3, wherein: The moving structure includes a moving base and a pushing cylinder. The pushing cylinder is installed on the support base, and the moving base is slidably installed on the support base; The rotating cylinder is installed on the moving base.

5. The positioning fixture for square machining according to claim 4, wherein: Limit guide rods are symmetrically arranged on the support base, and collars are symmetrically arranged on the moving base. The collars are sleeved on the guide rods; A sliding groove is arranged on the support base, and a sliding block is arranged at the bottom of the moving base. The sliding block is slidably installed in the sliding groove.

6. The positioning fixture for square box machining according to claim 1, wherein: The lengths of the first inner clamping block and the third inner clamping block are less than or equal to the distance between the second inner clamping block and the fourth inner clamping block; The lengths of the first outer clamping block and the third outer clamping block are less than or equal to the distance between the second outer clamping block and the fourth outer clamping block.

7. The positioning fixture for square box machining according to claim 4, characterized in that: A rotating wall is arranged at the bottom of the rotating base, and a rotating groove is arranged at the top of the moving base. The rotating wall is rotatably installed in the rotating groove.

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