V-shaped centering pressing and profiling contour positioning upper pressing combined tool structure

Abstract

The utility model discloses a V-shaped centering pressing and profiling contour positioning upper pressing combined tool structure, and belongs to the field of automobile part manufacturing. Clamping assemblies are connected to the rear side of the top end of an operation table at equal intervals; the front side of the top end of the operation table is connected with the direction correcting and positioning assemblies at equal intervals, and the direction correcting and positioning assemblies are located at the front ends of the clamping assemblies. The front side of the top end of the operation table is connected with a pressing assembly. In this way, after the back face of the workpiece is clamped through the clamping assembly, first-order machining treatment is conducted, the inner circle and the irregular arc contour of the workpiece are machined, then the workpiece is pressed through the pressing assembly, after the workpiece is positioned through the direction correcting and positioning assembly, second-order treatment is conducted on the front face of the workpiece, and the workpiece is machined. A workpiece is positioned and corrected through a hole and an irregular profile which are machined in the first procedure through the correcting positioning assembly and a cylinder at the center position of the pressing assembly, a boss and an inclined face on the front face of the workpiece are machined, and the stability of the workpiece in the machining process is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts manufacturing, in particular to a V-shaped centering pressing and contour-profiling positioning upper pressing combined tooling structure. Background Art

[0002] The automobile expansion valve is installed at the entrance of the automobile evaporator, and its main function is throttling. After the high-temperature and high-pressure liquid refrigerant passes through the throttling hole of the expansion valve, it becomes a low-temperature and low-pressure mist-like hydraulic refrigerant, creating conditions for the evaporation of the refrigerant; at the same time, it controls the flow of the refrigerant. Due to the fast response speed and large adjustment range of the electronic expansion valve, it is widely used in the air-conditioning systems of mid-to-high-end models and has a good market.

[0003] Announcement No. CN219767331U discloses a low-wear and high-efficiency clamping structure tooling device. The utility model uses three clamping components to clamp and position the edge of the workpiece to be processed, and uses the lever principle to increase the clamping force to achieve the purpose of high-efficiency clamping.

[0004] However, the utility model can only be used for pressing tooling for standard parts, and the processing position deviation is large when pressing non-standard parts.

[0005] Based on this, the utility model designs a V-shaped centering clamping and contour-profiling positioning upper clamping combined tooling structure to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a V-shaped centering and pressing and contour-profiling positioning and pressing combined tooling structure.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: V-shaped centering clamping and contour positioning upper clamping combined tooling structure, the rear side of the top of the operating table is connected with clamping components at equal intervals;

[0008] The front side of the top of the operating table is connected with a direction correction and positioning component at equal intervals, and the direction correction and positioning component is located at the front end of the clamping component;

[0009] A clamping assembly is connected to the front side of the top end of the operating table, and the clamping assembly is located between the clamping assembly and the direction correction and positioning assembly.

[0010] Furthermore, the clamping assembly includes a V-shaped clamping block, a special-shaped pull rod, a connecting rod, a ring table, a fixing part, a slide groove and a hydraulic cylinder. The bottom end of the fixing part is fixedly connected to the top of the operating table. Angled slide grooves are arranged on both sides inside the fixing part. The inner wall of the slide groove is slidably connected with a special-shaped pull rod. The top of the special-shaped pull rod is fixedly connected with a V-shaped clamping block, and one end of the V-shape is opposite to each other. A sliding groove for sliding the ring table is arranged below the opposite end of the special-shaped pull rod. The outer wall of the ring table is slidably connected to the inside of the fixing part. A connecting rod is fixedly connected to the center of the ring table and the bottom end of the connecting rod is fixedly connected to the driving end of the hydraulic cylinder. The outer wall of the hydraulic cylinder is fixedly connected to the bottom end of the operating table.

[0011] Furthermore, the direction correction and positioning assembly includes a transmission assembly, a connecting piece and a V-shaped pressure plate. The V-shaped pressure plate is slidably connected to the interior of the transmission assembly, and the bottom end of the connecting piece is fixedly connected to the top of the operating table.

[0012] Furthermore, the transmission assembly includes a single-acting cylinder, an axle pin and a lever. The outer wall of the single-acting cylinder is fixedly connected to the bottom end of the operating table, the driving end of the single-acting cylinder is fixedly connected to the axle pin, and the left side of the axle pin is rotatably connected to the lever.

[0013] Furthermore, the top end of the lever is rotatably connected to the V-shaped pressure plate, and the top end of the V-shaped pressure plate is slidably connected to the bottom end inside the connecting piece.

[0014] Furthermore, the clamping assembly includes a clamping piece, a bottom positioning block and a hydraulic cylinder. The bottom end of the hydraulic cylinder is fixedly connected to the top of the operating table, and the driving end of the hydraulic cylinder is rotatably connected to the clamping piece.

[0015] Furthermore, the front end of the hydraulic cylinder is rotatably connected to the bottom end of the pressing member through a rotating member, and the bottom end of the rotating member is connected to the front end of the hydraulic cylinder.

[0016] Furthermore, one opposite end of the hydraulic cylinder is fixedly connected with a bottom positioning block, and the bottom end of the bottom positioning block is fixedly connected to the top of the operating table, and an airtight detection hole is arranged at the center position of the bottom positioning block.

[0017] The utility model has the following technical effects:

[0018] During operation of the utility model, after the back of the workpiece is clamped by the clamping assembly, a first-order processing is performed to process the inner circle and irregular arc contour of the workpiece, and then the workpiece is clamped by the clamping assembly. After the workpiece is positioned using the correction and positioning assembly, a second-order processing is performed on the front of the workpiece. The holes and irregular contours processed by the first-order processing are positioned and corrected by the correction and positioning assembly and the cylinder at the center of the clamping assembly, and the front boss and inclined surface of the workpiece are processed to improve the stability of the workpiece during the processing.

[0019] During the operation of the utility model, the positioning reference transfer error caused by different shapes of the two sequences during the processing is achieved through the processing reference conversion between the first sequence and the second sequence and the correction processing of the correction positioning component, which greatly improves the requirements for the size and position of the workpiece during the two-sequence processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The utility model is a three-dimensional V-shaped centering pressing and contour positioning upper pressing combined tooling structure Figure 1 ;

[0022] Figure 2 It is a top view of the V-shaped centering pressing and contour positioning upper pressing combined tooling structure of the utility model;

[0023] Figure 3 The utility model is a three-dimensional V-shaped centering pressing and contour positioning upper pressing combined tooling structure Figure 2 ;

[0024] Figure 4 The utility model is a three-dimensional V-shaped centering pressing and contour positioning upper pressing combined tooling structure Figure 3 ;

[0025] Figure 5 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 6 For along Figure 2 AA direction cross-sectional view.

[0027] The numbers in the figure represent:

[0028] 1. Operating table; 2. Clamping assembly; 21. V-shaped clamping block; 22. Special-shaped pull rod; 23. Connecting rod; 24. Hydraulic cylinder; 25. Ring table; 26. Fixing piece; 27. Slide; 3. Direction correction and positioning assembly; 31. Transmission assembly; 311. Single-acting cylinder; 312. Axle pin; 313. Lever; 32. V-shaped pressure plate; 33. Connecting piece; 4. Clamping assembly; 41. Clamping piece; 42. Hydraulic cylinder; 43. Bottom positioning block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model is further described below in conjunction with embodiments.

[0031] Example 1

[0032] Please refer to the instruction manual Figure 1-6 , a V-shaped centering clamping and contour positioning upper clamping combined tooling structure, comprising an operating table 1, and a clamping assembly 2 is connected to the rear side of the top of the operating table 1 at equal intervals;

[0033] The front side of the top of the operating table 1 is connected with a direction correction and positioning component 3 at equal intervals, and the direction correction and positioning component 3 is located at the front end of the clamping component 2;

[0034] A clamping assembly 4 is connected to the front side of the top end of the operating platform 1 , and the clamping assembly 4 is located between the clamping assembly 2 and the direction correction and positioning assembly 3 .

[0035] After the workpiece is deburred by the vibrating grinding machine, the back of the workpiece is clamped by the clamping component 2, and then the first-order processing is carried out to process the inner circle and irregular arc contour of the workpiece. Subsequently, the workpiece is clamped by the clamping component 4, and the workpiece is positioned by the correction and positioning component 3. Then, the front of the workpiece is subjected to the second-order processing. The workpiece is positioned and corrected by the holes and irregular contours processed by the first-order processing through the correction and positioning component 3 and the cylinder at the center of the clamping component 4, and the front boss and inclined surface of the workpiece are processed to improve the stability of the workpiece during the processing. At the same time, through the processing reference conversion between the first and second sequences and the correction processing of the correction and positioning component 3, the positioning reference transfer error caused by the different shapes of the two sequences during the processing is realized, which greatly improves the requirements for the size and position of the workpiece during the two-sequence processing.

[0036] The clamping assembly 2 includes a V-shaped clamping block 21, a special-shaped pull rod 22, a connecting rod 23, a ring platform 25, a fixing part 26, a slide groove 27 and a hydraulic cylinder 24. The bottom end of the fixing part 26 is fixedly connected to the top of the operating table 1. Angled slide grooves 27 are arranged on both sides of the fixing part 26. The inner wall of the slide groove 27 is slidably connected to the special-shaped pull rod 22. The top of the special-shaped pull rod 22 is fixedly connected to the V-shaped clamping block 21, and one end of the V-shape is opposite. A sliding groove for sliding the ring platform 25 is arranged below the opposite end of the special-shaped pull rod 22. The outer wall of the ring platform 25 is slidably connected to the inside of the fixing part 26. The center of the ring platform 25 is fixedly connected to the connecting rod 23, and the bottom end of the connecting rod 23 is fixedly connected to the driving end of the hydraulic cylinder 24. The outer wall of the hydraulic cylinder 24 is fixedly connected to the bottom of the operating table 1.

[0037] The hydraulic cylinder 24 drives the connecting rod 23 to pull down, driving the ring platform 25 to move downward, driving the special-shaped pull rods 22 on both sides to move downward in the angled slide groove 27, so that the V-shaped clamping block 21 is parallel and centered to clamp the workpiece placed on the fixing part 26. At the same time, the spatial arrangement of the connecting rod 23, the special-shaped pull rod 22 and the V-shaped clamping block 21 forms a triangular relationship.

[0038] The direction correction and positioning assembly 3 includes a transmission assembly 31 , a connecting member 33 and a V-shaped pressing plate 32 . The V-shaped pressing plate 32 is slidably connected to the top of the transmission assembly 31 , and the bottom end of the connecting member 33 is fixedly connected to the top of the operating table 1 .

[0039] The transmission assembly 31 includes a single-acting cylinder 311, an axle pin 312 and a lever 313. The outer wall of the single-acting cylinder 311 is fixedly connected to the bottom end of the operating table 1. The driving end of the single-acting cylinder 311 is fixedly connected to the axle pin 312. The left side of the axle pin 312 is rotatably connected to the lever 313.

[0040] The top end of the lever 313 is rotatably connected to the V-shaped pressing plate 32 , and the top end of the V-shaped pressing plate 32 is slidably connected to the top end inside the connecting member 33 .

[0041] The single-acting cylinder 311 telescopes and moves, and is transmitted through the axle pin 312 and the lever 313, so that the V-shaped pressing plate 32 moves parallely in the connecting member 33, and the V-shaped pressing plate 32 can clamp the blank workpiece when it contracts, and realizes the function of correcting and positioning the blank workpiece after assembly.

[0042] The clamping assembly 4 includes a clamping member 41 , a bottom positioning block 43 and a hydraulic cylinder 42 . The bottom end of the hydraulic cylinder 42 is fixedly connected to the top of the operating table 1 , and the driving end of the hydraulic cylinder 42 is connected to the clamping member 41 for rotation upward.

[0043] The rear end of the hydraulic cylinder 42 is rotatably connected to the bottom end of the pressing member 41 through a rotating member, and the bottom end of the rotating member is connected to the top of the rear end of the hydraulic cylinder 42 .

[0044] The hydraulic cylinder 42 is fixedly connected to a bottom positioning block 43 at one opposite end. The bottom end of the bottom positioning block 43 is fixedly connected to the top of the operating table 1 . An airtight detection hole is provided at the center of the bottom positioning block 43 .

[0045] The driving end of the hydraulic cylinder 42 moves upward to push the tail of the clamping member 41 upward, so that the head of the clamping member 41 moves downward, and the head of the clamping member 41 is used to clamp the workpiece, thereby further improving the stability of the workpiece during processing.

[0046] 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A V-shaped centering and pressing and contour positioning upper pressing combined tooling structure, comprising an operating table (1), characterized in that: The rear side of the top end of the operating table (1) is connected with clamping components (2) at equal intervals; Direction correction and positioning components (3) are connected to the front side of the top end of the operating table (1) at equal intervals, and the direction correction and positioning components (3) are located at the front end of the clamping component (2); A clamping assembly (4) is connected to the front side of the top end of the operating platform (1), and the clamping assembly (4) is located between the clamping assembly (2) and the direction correction and positioning assembly (3).

2. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 1 is characterized in that: The clamping assembly (2) comprises a V-shaped clamping block (21), a special-shaped pull rod (22), a connecting rod (23), a ring platform (25), a fixing member (26), a slide groove (27) and a hydraulic cylinder (24), wherein the bottom end of the fixing member (26) is fixedly connected to the top end of the operating table (1), and angled slide grooves (27) are arranged on both sides of the fixing member (26), and the inner wall of the slide groove (27) is slidably connected to the special-shaped pull rod (22), and the top end of the special-shaped pull rod (22) is fixedly connected to the top end of the operating table (1). A V-shaped clamping block (21) is connected, and one end of the V-shape is opposite to each other. A sliding groove for sliding the ring platform (25) is provided below the opposite end of the special-shaped pull rod (22). The outer wall of the ring platform (25) is slidably connected to the inside of the fixing member (26). The center of the ring platform (25) is fixedly connected to a connecting rod (23), and the bottom end of the connecting rod (23) is fixedly connected to the driving end of the hydraulic cylinder (24). The outer wall of the hydraulic cylinder (24) is fixedly connected to the bottom end of the operating table (1).

3. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 2 is characterized in that: The direction correction and positioning assembly (3) comprises a transmission assembly (31), a connecting member (33) and a V-shaped pressing plate (32); the V-shaped pressing plate (32) is slidably connected to the top of the transmission assembly (31); and the bottom end of the connecting member (33) is fixedly connected to the top of the operating table (1).

4. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 3 is characterized in that: The transmission assembly (31) comprises a single-acting cylinder (311), an axle pin (312) and a lever (313); the outer wall of the single-acting cylinder (311) is fixedly connected to the bottom end of the operating table (1); the driving end of the single-acting cylinder (311) is fixedly connected to the axle pin (312); and the left side of the axle pin (312) is rotatably connected to the lever (313).

5. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 4 is characterized in that: The top end of the lever (313) is rotatably connected to the V-shaped pressing plate (32), and the top end of the V-shaped pressing plate (32) is slidably connected to the bottom end inside the connecting member (33).

6. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 5 is characterized in that: The clamping assembly (4) comprises a clamping member (41), a bottom positioning block (43) and a hydraulic cylinder (42); the bottom end of the hydraulic cylinder (42) is fixedly connected to the top end of the operating table (1); and the driving end of the hydraulic cylinder (42) is rotatably connected to the clamping member (41).

7. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 6 is characterized in that: The front end of the hydraulic cylinder (42) is rotatably connected to the bottom end of the pressing member (41) via a rotating member, and the bottom end of the rotating member is connected to the front end of the hydraulic cylinder (42).

8. The V-shaped centering and pressing and contour positioning and pressing combined tooling structure according to claim 7 is characterized in that: The hydraulic cylinder (42) is fixedly connected to a bottom positioning block (43) at one opposite end, and the bottom end of the bottom positioning block (43) is fixedly connected to the top of the operating table (1), and an airtight detection hole is provided at the center of the bottom positioning block (43).

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