Machining clamp with multi-face positioning function

Abstract

The utility model discloses a machining fixture with a multi-surface positioning function, which belongs to the technical field of machining fixtures and comprises a mounting plate, clamping components for clamping workpieces to be machined are mounted on the left side and the right side of the upper end of the mounting plate, and the clamping components are connected with the workpieces to be machined; positioning assemblies used for positioning a to-be-machined workpiece are installed on the left side and the right side of the upper end of the installation plate correspondingly and located right behind the clamping assembly. The positioning assembly comprises a rear side positioning assembly and an upper side positioning assembly. By means of the mode, when workpieces to be machined are machined, the workpieces to be machined only need to be manually placed in the first arc-shaped groove and the second arc-shaped groove, manual operation is not needed for positioning the workpieces to be machined, time and labor are saved, two sets of workpieces to be machined can be machined at the same time, and machining efficiency is high; when the lower end of the spherical part of the workpiece to be machined is machined, the workpiece to be machined can be prevented from rotating, the situation that the machined upper plane and the machined lower plane are not parallel is avoided, and therefore a machined product is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of processing fixtures, and particularly relates to a processing fixture with a multi-surface positioning function. Background Art

[0002] Rotating connectors are usually used to connect two components that need to rotate relative to each other. During processing, it is necessary to clamp the cylindrical part of the workpiece to be processed by a fixture, and then process the spherical part of the workpiece to be processed. First, one surface of the spherical part is processed into a plane by a milling cutter and a circular hole at the center of the spherical part is processed, and then the opposite surface is processed into a plane by a milling cutter and a circular hole at the center of the spherical part is processed until the two circular holes are connected to form a rotating connector.

[0003] Chinese Patent CN206732615U discloses a fixture for machining key grooves of shaft-shaped special-shaped connectors, which includes a fixture base and a claw chuck, a semi-circular groove support base and a V-shaped positioning block arranged on the fixture base from left to right in sequence; the claw chuck is connected to the fixture base through a bracket, and the bracket can move left and right on the fixture base; the claw chuck is slidably connected to the bracket and can move up and down along the bracket; the claw chuck can rotate along its axial direction; a reverse V-shaped groove-shaped fixed pressing plate is detachably connected above the semi-circular groove support base, and the fixed pressing plate is connected to the semi-circular groove support base through the first locking bolts at both ends thereof; a positioning block pressing plate is detachably connected above the V-shaped positioning block, and the positioning block pressing plate is connected to the V-shaped positioning block through the second locking bolts at both ends thereof.

[0004] However, when fixing the workpiece to be processed in this patent, it is necessary to manually rotate the first locking bolt and the second locking bolt to make the fixed pressing plate and the positioning block pressing plate press the workpiece to be processed. The operation is cumbersome, wasting manpower, and the processing efficiency is low.

[0005] Based on this, the utility model designs a processing fixture with a multi-surface positioning function to solve the above problems. Summary of the Utility Model

[0006] In view of the above-mentioned drawbacks of the prior art, the utility model provides a processing fixture with a multi-surface positioning function.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A processing fixture with a multi-surface positioning function includes a mounting plate;

[0009] Clamping components for clamping the workpiece to be processed are installed on the left and right sides of the upper end of the mounting plate, and the clamping components are connected to the workpiece to be processed;

[0010] At both the left and right ends of the upper end of the mounting plate, positioning components for positioning the workpiece to be processed are installed, and the positioning components are located directly behind the clamping components;

[0011] The positioning components include a rear positioning component and an upper positioning component. The rear positioning component is installed at the rear side of the upper end of the mounting plate, and the upper positioning component is installed at the upper end of the rear positioning component. Both the rear positioning component and the upper positioning component are connected to the workpiece to be processed.

[0012] Furthermore, the clamping component includes a pressing oil cylinder, a first positioning block, a second positioning block, a pressing block, an avoidance hole, a mounting hole, a first arc-shaped groove, and a second arc-shaped groove. A mounting hole is provided at the front end of the mounting plate, and an avoidance hole is provided in the middle of the mounting plate. The inner wall of the mounting hole is fixedly connected to the pressing oil cylinder, and the lower end of the output end of the pressing oil cylinder is fixedly connected to the pressing block. A first positioning block and a second positioning block are fixedly connected to the left side of the upper end of the mounting plate, and there is a gap between the first positioning block and the second positioning block. The upper ends of the first positioning block and the second positioning block are respectively provided with a first arc-shaped groove and a second arc-shaped groove that cooperate with the cylindrical part at the front end of the workpiece to be processed and the cylindrical part in the middle of the workpiece to be processed.

[0013] Furthermore, an arc-shaped groove that cooperates with the cylindrical part in the middle of the workpiece to be processed is provided at the lower end of the pressing block.

[0014] Furthermore, the distance between the inner wall of the lower end of the first arc-shaped groove and the top end of the first positioning block is greater than the distance between the inner wall of the lower end of the second arc-shaped groove and the top end of the second positioning block.

[0015] Furthermore, the rear positioning component includes a mounting block, a first cylinder, a first sliding groove, a pushing block, an inclined groove, a third positioning block, a second sliding groove, a connecting rod, a spring, and a third sliding groove. The mounting block is fixedly connected to the rear side of the upper end of the mounting plate, and a first cylinder is fixedly connected to the lower end of the mounting plate. A first sliding groove and a second sliding groove are respectively provided at the lower end and the lower front side of the mounting block. The pushing block is in sliding connection with the first sliding groove in a fitting manner, and the output end of the first cylinder is fixedly connected to the pushing block. The third positioning block is in sliding connection with the second sliding groove in a fitting manner. The rear end of the second sliding groove is an inclined surface that slopes upward and backward. An inclined groove that is in sliding connection with the inclined surface of the third positioning block in a fitting manner is provided at the front end of the pushing block. Third sliding grooves are provided at both the left and right ends of the mounting block, and a connecting rod is in sliding connection with the third sliding groove in a fitting manner. The rear end of the connecting rod is fixedly connected to a spring, and the rear end of the spring is fixedly connected to the inner wall of the rear end of the third sliding groove. The third positioning block is in contact connection with the workpiece to be processed.

[0016] Furthermore, the mounting block is connected to the upper positioning component.

[0017] Furthermore, the upper positioning component includes a second cylinder and a fourth positioning block. The second cylinder is fixedly connected to the upper rear side of the mounting block, and the output end of the second cylinder is fixedly connected to the fourth positioning block. The fourth positioning block is in contact connection with the workpiece to be processed.

[0018] Furthermore, a cushion block is fixedly connected to the lower end of the fourth positioning block.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] When machining a workpiece to be machined, the present utility model only requires manual placement of the workpiece to be machined in the first arc groove and the second arc groove, without the need for manual operation to position the workpiece to be machined, saving time and labor, and can machine two groups of workpieces to be machined simultaneously, with high machining efficiency;

[0021] When machining the lower end of the spherical part of the workpiece to be machined, the present utility model can prevent the workpiece to be machined from rotating, avoiding the upper plane and the lower plane of the machining from being non-parallel, thereby ensuring the machining quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0023] Figure 1 Stereogram of a machining fixture with multi-faceted positioning function of the present utility model Figure 1 ;

[0024] Figure 2 Front view of a machining fixture with multi-faceted positioning function of the present utility model;

[0025] Figure 3 Stereogram of a machining fixture with multi-faceted positioning function of the present utility model Figure 2 ;

[0026] Figure 4 Stereogram of a machining fixture with multi-faceted positioning function of the present utility model without the workpiece to be machined;

[0027] Figure 5 Is a sectional view along the A-A direction of Figure 2 ;

[0028] Figure 6 Is a sectional view along the B-B direction of Figure 2 ;

[0029] Figure 7 Is Figure 5 The enlarged view at C in

[0030] Figure 8 Is Figure 6 The enlarged view at D in

[0031] Figure 9 This is a three-dimensional view of a workpiece to be processed by a processing fixture with multi-faceted positioning function of the present utility model;

[0032] Figure 10 This is a three-dimensional view of a rotating connecting member of a processing fixture with multi-faceted positioning function of the present utility model.

[0033] The reference numerals in the figure respectively represent:

[0034] 1. mounting plate; 2. clamping assembly; 21. pressing oil cylinder; 22. first positioning block; 23. second positioning block; 24. pressing block; 25. avoidance hole; 26. mounting hole; 27. first arc-shaped groove; 28. second arc-shaped groove; 3. positioning assembly; 31. rear-side positioning assembly; 311. mounting block; 312. first cylinder; 313. first chute; 314. pushing block; 315. inclined chute; 316. third positioning block; 317. second chute; 318. connecting rod; 319. spring; 3110. third chute; 32. upper-side positioning assembly; 321. second cylinder; 322. fourth positioning block; 4. upper milling cutter; 5. lower milling cutter; 6. workpiece to be processed; 7. rotating connecting member. Specific embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] The "left", "right", "front", "rear", "upper", and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0037] Embodiment 1

[0038] In some embodiments, please refer to the accompanying specification Figure 1-10 , a processing fixture with multi-faceted positioning function includes a mounting plate 1;

[0039] The clamping assemblies 2 for clamping the workpiece to be processed 6 are respectively installed on the left and right sides of the upper end of the mounting plate 1, and the clamping assemblies 2 are connected to the workpiece to be processed 6;

[0040] The positioning assemblies 3 for positioning the workpiece to be processed 6 are respectively installed on the left and right of the upper end of the mounting plate 1, and the positioning assemblies 3 are located directly behind the clamping assemblies 2;

[0041] The positioning component 3 includes a rear positioning component 31 and an upper positioning component 32. The rear positioning component 31 is installed at the rear side of the upper end of the mounting plate 1, and the upper positioning component 32 is installed at the upper end of the rear positioning component 31. Both the rear positioning component 31 and the upper positioning component 32 are connected to the workpiece 6 to be processed.

[0042] It further includes an upper milling cutter 4 and a lower milling cutter 5 for processing the upper and lower ends of the spherical part of the workpiece 6 to be processed into a forming rotating connecting piece 7. Both the upper milling cutter 4 and the lower milling cutter 5 are connected to the output end of an external milling machine.

[0043] During use, the front cylindrical part of the workpiece 6 to be processed is clamped by the clamping component 2 to achieve the limit of the workpiece 6 to be processed in the up and down direction. Then, the rear positioning component 31 moves forward to abut against the rear end of the workpiece 6 to be processed. The cooperation between the rear positioning component 31 and the clamping component 2 realizes the limit of the workpiece 6 to be processed in the front and rear directions. Then, the upper milling cutter 4 processes the upper end of the spherical part of the workpiece 6 to be processed into a plane and processes a circular hole at the center of the spherical part. After processing, the upper positioning component 32 moves forward to abut against the processed plane at the upper end of the workpiece 6 to be processed, which can prevent the workpiece 6 to be processed from rotating when processing the lower end of the spherical part of the workpiece 6 to be processed, avoiding the non-parallelism of the processed upper and lower planes, so as to ensure the processed product. After the upper positioning component 32 abuts against the processed plane at the upper end of the workpiece 6 to be processed, the lower milling cutter 5 processes the lower end of the spherical part of the workpiece 6 to be processed into a plane and processes a circular hole at the center of the spherical part until the circular hole processed at the upper end and the circular hole processed at the lower end are connected to form the rotating connecting piece 7. When processing the workpiece 6 to be processed, only need to manually place the workpiece 6 to be processed on the clamping component 2, without manual operation to position the workpiece 6 to be processed, saving time and labor, and two groups of workpieces 6 to be processed can be processed simultaneously, with high processing efficiency.

[0044] Taking the clamping component 2 on the left side as an example for description, the clamping component 2 includes a pressing oil cylinder 21, a first positioning block 22, a second positioning block 23, a pressing block 24, an avoidance hole 25, a mounting hole 26, a first arc-shaped groove 27 and a second arc-shaped groove 28. A mounting hole 26 is opened at the front end of the mounting plate 1, and an avoidance hole 25 is opened at the middle of the mounting plate 1. The inner wall of the mounting hole 26 is fixedly connected to the pressing oil cylinder 21, and the lower end of the output end of the pressing oil cylinder 21 is fixedly connected to the pressing block 24. The first positioning block 22 and the second positioning block 23 are fixedly connected to the upper end of the left side of the mounting plate 1, and there is a gap between the first positioning block 22 and the second positioning block 23. The first arc-shaped groove 27 and the second arc-shaped groove 28 that cooperate with the front-end end cylindrical part of the workpiece 6 to be processed and the middle cylindrical part of the workpiece 6 to be processed are respectively opened at the upper ends of the first positioning block 22 and the second positioning block 23. During clamping, the front-end end of the workpiece 6 to be processed is in contact connection with the first arc-shaped groove 27, the middle cylindrical part of the workpiece 6 to be processed is in contact connection with the second arc-shaped groove 28 and the pressing block 24, and the table edge at the rear end of the workpiece 6 to be processed is in contact connection with the rear end of the first positioning block 22.

[0045] The lower end of the briquetting block 24 is provided with an arc-shaped groove that mates with the cylindrical portion in the middle of the workpiece 6 to be machined.

[0046] The distance between the inner wall of the lower end of the first arc-shaped groove 27 and the top end of the first positioning block 22 is greater than the distance between the inner wall of the lower end of the second arc-shaped groove 28 and the top end of the second positioning block 23.

[0047] When clamping, the workpiece 6 to be machined is placed in the first arc-shaped groove 27 and the second arc-shaped groove 28. The rear end of the workpiece 6 to be machined is located in the first arc-shaped groove 27, the cylindrical portion in the middle of the workpiece 6 to be machined is located in the second arc-shaped groove 28, and the edge of the platform at the rear end of the workpiece 6 to be machined is located in the gap between the first positioning block 22 and the second positioning block 23 and abuts against the rear end of the first positioning block 22. The pressing oil cylinder 21 drives the briquetting block 24 to rotate and press the cylindrical portion in the middle of the workpiece 6 to be machined. The workpiece 6 to be machined is limited in the up and down direction under the cooperation of the second positioning block 23, the second arc-shaped groove 28 and the briquetting block 24;

[0048] When discharging, the pressing oil cylinder 21 drives the briquetting block 24 to rotate to release the cylindrical portion in the middle of the workpiece 6 to be machined, and then the workpiece 6 to be machined can be manually taken out;

[0049] Taking the rear positioning assembly 31 on the left side as an example for description, the rear positioning assembly 31 includes a mounting block 311, a first cylinder 312, a first chute 313, a pushing block 314, an inclined chute 315, a third positioning block 316, a second chute 317, a connecting rod 318, a spring 319 and a third chute 3110. The mounting block 311 is fixedly connected to the upper rear side of the mounting plate 1. The lower end of the mounting plate 1 is fixedly connected with a first cylinder 312. The lower end and the lower front side of the mounting block 311 are respectively provided with a first chute 313 and a second chute 317. The pushing block 314 is in sliding connection with the first chute 313 in a fitting manner. The output end of the first cylinder 312 is fixedly connected with the pushing block 314. The third positioning block 316 is in sliding connection with the second chute 317 in a fitting manner. The rear end of the second chute 317 is an inclined surface that slopes upward to the rear side. The front end of the pushing block 314 is provided with an inclined chute 315 that is in sliding connection with the inclined surface of the third positioning block 316 in a fitting manner. Both the left and right ends of the mounting block 311 are provided with a third chute 3110. A connecting rod 318 is in sliding connection with the third chute 3110 in a fitting manner. The rear end of the connecting rod 318 is fixedly connected with a spring 319. The rear end of the spring 319 is fixedly connected with the inner wall of the rear end of the third chute 3110. During positioning, the third positioning block 316 is in contact connection with the workpiece 6 to be machined.

[0050] The mounting block 311 is connected to the upper positioning assembly 32.

[0051] Taking the upper positioning component 32 on the left side as an example for description, the upper positioning component 32 includes a second air cylinder 321 and a fourth positioning block 322. The second air cylinder 321 is fixedly connected to the upper side of the rear end of the mounting block 311. The output end of the second air cylinder 321 is fixedly connected with the fourth positioning block 322. During positioning, the fourth positioning block 322 is in contact connection with the workpiece 6 to be processed.

[0052] Preferably, a cushion block is fixedly connected to the lower end of the fourth positioning block 322.

[0053] During positioning, the first air cylinder 312 drives the push block 314 to move upward along the first chute 313. Under the action of the inclined chute 315, the push block 314 drives the third positioning block 316 to move forward along the second chute 317 to abut against the rear end of the workpiece 6 to be processed. Under the combined action of the third positioning block 316 and the first positioning block 22, the workpiece 6 to be processed is limited in the front-rear direction. At the same time, the third positioning block 316 drives the connecting rod 318 to slide forward along the third chute 3110 to stretch the spring 319. Then, the upper milling cutter 4 processes the upper end of the spherical part of the workpiece 6 to be processed into a flat surface and processes the round hole at the center of the spherical part. After processing, the second air cylinder 321 drives the fourth positioning block 322 to move forward, so that the lower end of the fourth positioning block 322 abuts against the processed flat surface at the upper end of the workpiece 6 to be processed, preventing the workpiece 6 to be processed from rotating during the processing of the lower end of the spherical part of the workpiece 6, resulting in non-parallelism between the processed upper plane and the lower plane, and ensuring the processed product. After the upper fourth positioning block 322 abuts against the processed flat surface at the upper end of the workpiece 6 to be processed, the lower milling cutter 5 processes the lower end of the spherical part of the workpiece 6 to be processed into a flat surface and processes the round hole at the center of the spherical part until the round hole processed at the upper end and the round hole processed at the lower end are connected to form the rotating connector 7. After processing, the first air cylinder 312 drives the push block 314 to move downward along the first chute 313. The connecting rod 318 moves backward along the third chute 3110 under the elastic action of the spring 319 to reset. The connecting rod 318 drives the third positioning block 316 to move backward along the second chute 317 to reset, preparing for the next processing. At the same time, the second air cylinder 321 drives the fourth positioning block 322 to move backward to reset.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A processing fixture with multi-faceted positioning function, comprising a mounting plate (1), characterized in that: A clamping assembly (2) for clamping a workpiece (6) to be processed is installed on both the left and right sides of the upper end of the mounting plate (1), and the clamping assembly (2) is connected to the workpiece (6) to be processed; Positioning components (3) for positioning the workpiece (6) to be processed are installed on both the left and right sides of the upper end of the mounting plate (1), and the positioning components (3) are located directly behind the clamping components (2); The positioning assembly (3) comprises a rear positioning assembly (31) and an upper positioning assembly (32); the rear positioning assembly (31) is mounted on the rear side of the upper end of the mounting plate (1); the upper positioning assembly (32) is mounted on the upper end of the rear positioning assembly (31); and both the rear positioning assembly (31) and the upper positioning assembly (32) are connected to a workpiece (6) to be processed.

2. The processing fixture with multi-faceted positioning function according to claim 1, characterized in that: The clamping assembly (2) comprises a clamping cylinder (21), a first positioning block (22), a second positioning block (23), a clamping block (24), an avoidance hole (25), a mounting hole (26), a first arc-shaped groove (27) and a second arc-shaped groove (28); a mounting hole (26) is provided at the front end of the mounting plate (1); a avoidance hole (25) is provided at the middle of the mounting plate (1); an inner wall of the mounting hole (26) is fixedly connected to the clamping cylinder (21); an output of the clamping cylinder (21) A pressing block (24) is fixedly connected to the lower end of the end, a first positioning block (22) and a second positioning block (23) are fixedly connected to the left side of the upper end of the mounting plate (1), and a gap exists between the first positioning block (22) and the second positioning block (23), and a first arc groove (27) and a second arc groove (28) are respectively formed at the upper ends of the first positioning block (22) and the second positioning block (23) to match the cylindrical portion at the front end of the workpiece (6) to be processed and the cylindrical portion at the middle end of the workpiece (6) to be processed.

3. The processing fixture with multi-faceted positioning function according to claim 2, characterized in that: The lower end of the pressing block (24) is provided with an arc-shaped groove which matches with the cylindrical portion at the middle end of the workpiece (6) to be processed.

4. The processing fixture with multi-faceted positioning function according to claim 3, characterized in that: The distance between the inner wall at the lower end of the first arc-shaped groove (27) and the top end of the first positioning block (22) is greater than the distance between the inner wall at the lower end of the second arc-shaped groove (28) and the top end of the second positioning block (23).

5. The processing fixture with multi-faceted positioning function according to claim 4, characterized in that: The rear positioning assembly (31) comprises a mounting block (311), a first cylinder (312), a first slide groove (313), a push block (314), an inclined groove (315), a third positioning block (316), a second slide groove (317), a connecting rod (318), a spring (319) and a third slide groove (3110); the mounting block (311) is fixedly connected to the rear side of the upper end of the mounting plate (1); the lower end of the mounting plate (1) is fixedly connected to the first cylinder (312); the lower end and the lower side of the front end of the mounting block (311) are respectively provided with a first slide groove (313) and a second slide groove (317); the push block (314) is slidably connected to the first slide groove (313); the output end of the first cylinder (312) is connected to the push block (314); The block (314) is fixedly connected, the third positioning block (316) is slidably connected with the second slide groove (317), the rear end of the second slide groove (317) is an inclined surface inclined toward the rear and upward, the front end of the push block (314) is provided with an inclined groove (315) which is slidably connected with the inclined surface of the third positioning block (316), the left and right ends of the mounting block (311) are both provided with a third slide groove (3110), the third slide groove (3110) is slidably connected with a connecting rod (318), the rear end of the connecting rod (318) is fixedly connected with a spring (319), the rear end of the spring (319) is fixedly connected with the rear end inner wall of the third slide groove (3110), and the third positioning block (316) is in contact with the workpiece (6) to be processed.

6. The processing fixture with multi-faceted positioning function according to claim 5, characterized in that: The mounting block (311) is connected to the upper positioning assembly (32).

7. The processing fixture with multi-faceted positioning function according to claim 6, characterized in that: The upper positioning assembly (32) comprises a second cylinder (321) and a fourth positioning block (322); the second cylinder (321) is fixedly connected to the upper side of the rear end of the mounting block (311); the output end of the second cylinder (321) is fixedly connected to the fourth positioning block (322); the fourth positioning block (322) is in contact with the workpiece (6) to be processed.

8. The processing fixture with multi-faceted positioning function according to claim 7, characterized in that: A cushion block is fixedly connected to the lower end of the fourth positioning block (322).

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