Tool for clamping angle workpiece

Abstract

The tool comprises a base, an auxiliary supporting device, a fixed support and a workpiece clamping device, the auxiliary supporting device and the fixed support are both fixed to the base, the auxiliary supporting device supports the to-be-machined part of the workpiece, a rotating support is arranged on the upper portion of the fixed support, and the workpiece clamping device is arranged on the rotating support. An angle adjusting device is arranged between the rotating support and the fixed support, and the angle adjusting device adjusts the rotating angle of the rotating support relative to the fixed support; and a workpiece clamping device is arranged at the upper part of the rotating support, so that the positioning surface of the workpiece is fixed on the positioning mechanism and is clamped. The angle adjusting device is arranged between the rotating support and the positioning support, so that the rotating angle between the rotating support and the fixed support can be conveniently adjusted according to the inclination angle of a workpiece to adapt to the inclination angle of the workpiece, angle alignment and positioning clamping are achieved, the workpiece is prevented from deviating, and the machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of angle workpiece processing technology, and in particular to a tooling for clamping angle workpieces. Background Technology

[0002] When designing a workpiece, its shape is designed to meet specific requirements or facilitate the installation of components. Figure 1 The structure shown is bent at an angle, such as a car front axle. When machining such angled workpieces, the machined surface and the locating surface are at an angle. That is, when the machined surface is horizontal, the locating surface is tilted. Aligning this angle between the machined and locating surfaces is complex, inefficient, and difficult to clamp. Furthermore, due to their large weight, these workpieces are prone to significant vibration during machining, making proper clamping difficult and causing workpiece displacement during processing, thus affecting machining accuracy. Summary of the Invention

[0003] To address the problem that existing angled workpieces are difficult to position and clamp due to the inclination of the positioning and machining surfaces, this invention provides a tooling for clamping angled workpieces. By setting an angle adjustment device between the rotating support and the positioning support, the rotation angle between the rotating support and the fixed support can be adjusted according to the tilt angle of the workpiece itself, thereby adapting to the tilt angle of the angled workpiece, achieving positioning and clamping, preventing workpiece displacement, and improving machining accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A fixture for clamping angled workpieces includes a base, an auxiliary support device, a fixed support, and a workpiece clamping device. Both the auxiliary support device and the fixed support are fixed to the base. The auxiliary support device supports the part of the workpiece to be processed. A rotating support is provided on the upper part of the fixed support. An angle adjustment device is provided between the rotating support and the fixed support to adjust the rotation angle of the rotating support relative to the fixed support. A workpiece clamping device is provided on the upper part of the rotating support. The workpiece clamping device includes a positioning mechanism and a clamping mechanism. The positioning mechanism is located on the rotating support, and the clamping mechanism is fixed to the side of the positioning mechanism. The positioning surface of the workpiece is located on the upper part of the positioning mechanism, and the clamping mechanism presses the workpiece onto the positioning mechanism.

[0006] Furthermore, the angle adjustment device includes a connector, a screw, and a fixing sleeve. The fixing sleeve is fixed to the lower part of the fixed support, the connector is disposed on the side of the rotating support, one end of the screw is connected to the connector, and the other end passes through the fixing sleeve and is suspended in the air. A handle is connected to the suspended end of the screw, and the screw is threadedly connected to the fixing sleeve. By rotating the screw, the rotating support is driven to rotate, thereby realizing the rotation of the rotating support relative to the fixed support and achieving angle adjustment.

[0007] Furthermore, the positioning mechanism includes at least two positioning supports, which are slidably mounted on a rotating support. Each positioning support is connected to a lead screw, and a connecting frame is provided on the opposite side of the lead screw. The connecting frame is fixed to the rotating support, and the lead screw is rotatably connected to the connecting frame. Rotating the lead screw moves the positioning support. By rotating the lead screw to move the positioning support, the position of the positioning support is adjusted, ensuring the stability of the workpiece clamped on the positioning support.

[0008] Furthermore, the positioning support is also equipped with a positioning block for adjusting the workpiece height, and the positioning support is also equipped with a limit rod. The positioning block is set on the positioning support via the limit rod. The distance between the workpiece surface and the clamping device is adjusted by the positioning block, thereby improving the clamping effect.

[0009] Furthermore, each of the positioning supports is fixed with a clamping mechanism, which includes a telescopic component and a clamping arm. The fixed end of the telescopic component is fixed to the positioning support. One end of the clamping arm is connected to the telescopic end of the telescopic component, and the other end is suspended. A positioning bolt is fixed to the suspended end of the clamping arm, and the positioning bolt is arranged vertically opposite to the positioning support.

[0010] Furthermore, the clamping mechanism also includes a connecting rod and an auxiliary support. The auxiliary support is connected to the positioning support, and a connecting rod is hinged to the upper part of the auxiliary support. The connecting rod is hinged to the clamping arm.

[0011] Furthermore, the auxiliary support device includes a connecting seat and a support seat. The connecting seat is fixed to the base, and the lower part of the support seat is fixed to the upper part of the connecting seat. An auxiliary clamping device is provided on the top of the support seat. The auxiliary support device supports the part of the workpiece to be processed, improves the stability during processing, and prevents the workpiece from becoming unbalanced in weight ratio during processing, causing the workpiece to shake or shift, thus affecting the processing accuracy.

[0012] Furthermore, the auxiliary clamping device includes a second telescopic component and a manual adjustment device. A slot is formed on the top of the support base, and the second telescopic component and the manual adjustment device are respectively positioned opposite each other on the support base on both sides of the slot. The second telescopic component and the manual adjustment device work together to clamp the workpiece. The combined action of the second telescopic component and the manual adjustment device improves clamping accuracy and prevents the workpiece from shifting during clamping, thus affecting machining accuracy.

[0013] Furthermore, the fixed end of the second telescopic component is fixed to the support base, and the telescopic end of the second telescopic component extends through the support base into the groove; the manual adjustment device includes a handle and a support rod, one end of the support rod is fixed to the handle, and the other end of the support rod extends through the support base into the groove, and the support rod is threadedly connected to the support base.

[0014] Furthermore, a pointer is provided on the rotating support, and a degree indicator is provided on the fixed support. The pointer indicates the degree on the degree indicator. With the pointer and degree indicator, the degree of rotation can be observed when the workpiece is clamped and the angle is adjusted.

[0015] The beneficial effects of this utility model through the above technical solution are:

[0016] This invention, by setting an angle adjustment device between the rotating support and the fixed support, can adjust the angle between the rotating support and the fixed support according to workpieces with different angles, which facilitates better clamping, positioning and tightness of workpieces with different angles.

[0017] This invention improves the firmness of workpiece clamping by setting an auxiliary support device, ensures the stability of workpieces at angles during machining, and improves machining accuracy.

[0018] This invention, by setting a pointer and a degree indicator, makes it easy to observe the rotation angle when adjusting the angle between the rotating support and the fixed support, thus facilitating adjustment.

[0019] This invention ensures the positioning and clamping of the workpiece and improves processing accuracy by setting up a positioning mechanism and auxiliary positioning clamping bolts. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an existing angular workpiece.

[0021] Figure 2 This is a front view structural schematic diagram of a tooling for clamping angled workpieces according to this utility model.

[0022] Figure 3 This is a top view schematic diagram of a tooling structure for clamping angled workpieces according to the present invention.

[0023] Figure 4 This is a right-side structural schematic diagram of a tooling for clamping angled workpieces according to this utility model.

[0024] The attached diagram is labeled as follows: 1. Base, 2. Connecting seat, 3. Support seat, 4. Fixed support, 5. Rotating support, 6. Positioning support, 7. Connecting rod, 8. Connecting frame, 9. Positioning bolt, 10. Lead screw, 11. Workpiece, 12. Fixed sleeve, 13. Handle, 14. Screw, 15. Connecting piece, 17. Pointer, 18. Degree indicator, 19. Telescopic component two, 21. Clamping arm, 23. Telescopic component one, 24. Support rod, 25. Handle, 26. Auxiliary support, 27. Machining surface, 28. Positioning surface, 29. Positioning block, 30. Limiting rod, 31. Stop block. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0026] like Figures 2-4 As shown, a fixture for clamping angled workpieces includes a base 1, a fixed support 4, an auxiliary support device, and a workpiece clamping device. The auxiliary support device and the fixed support 4 are both fixed to the base 1, with the auxiliary support device supporting the workpiece to be processed. A rotating support 5 is provided on the upper part of the fixed support 4. Specifically, the upper surface of the fixed support 4 is a concave arc surface, and the lower surface of the rotating support 5 is a convex arc structure that mates with the upper surface of the fixed support 4. An angle adjustment device is provided between the rotating support 5 and the fixed support 4 to adjust the rotation angle of the rotating support 5 relative to the fixed support 4. This allows the upper surface of the rotating support 5 to form an angle with the horizontal plane to accommodate the angle of the workpiece. Multiple bolts are also provided at the lower part of the rotating support 5. After the angle adjustment device adjusts the angle, the rotating support 5 and the fixed support 4 can be fixedly connected by the bolts to ensure the stability of the rotating support 5 after angle adjustment.

[0027] The angle adjustment device includes a connector 15, a screw 14, and a fixing sleeve 12. The fixing sleeve 12 is fixed to the side of the fixed support 4. The connector 15 is disposed on the rotating support 5 and has a cylindrical structure. The top of the connector 15 is fixedly connected to the rotating support 5. One end of the screw 14 is connected to the connector 15, and the other end passes through the fixing sleeve 12 and is suspended. Specifically, the lower part of the connector 15 has a through hole with a diameter larger than that of the screw 14. The screw 14 passes through the through hole. Stops 31 are fixed on both sides of the screw 14 of the connector 15 and are fixedly connected to the screw 14 to prevent the screw 14 from moving axially relative to the connector 15. A handle 13 is connected to the suspended end of the screw 14, and the screw 14 is threadedly connected to the fixing sleeve 12.

[0028] To facilitate observation of the degree of rotation during angle adjustment, a pointer 17 is provided at the lower center of the arc-shaped sidewall of the rotating support 5. A degree indicator 18 is provided on the arc-shaped sidewall of the fixed support 4 corresponding to the pointer. When the rotating support 5 rotates relative to the fixed support 4, the pointer 17 indicates the scale on the degree indicator 18 to indicate the angle of rotation to the operator. This angle adjustment device is suitable for small-amplitude adjustments of the tilt angle, with an adjustment range of 5 to 10 degrees.

[0029] The upper part of the rotating support 5 is provided with a workpiece clamping device, which includes a positioning mechanism and a clamping mechanism. The positioning mechanism is slidably connected to the rotating support 5, and the clamping mechanism is fixed on the positioning mechanism. The clamping mechanism fixes the workpiece to the positioning mechanism and presses it.

[0030] The positioning mechanism includes at least two positioning supports 6. In this embodiment, there are two positioning supports 6. The positioning surface 28 of the workpiece contacts the upper surface of the positioning support 6. The two positioning supports 6 slide on the rotating support 5. Specifically, each positioning support 6 is threadedly connected to a lead screw 10. A connecting frame 8 is provided on the opposite side of the lead screw 10. The connecting frame 8 is fixed to the rotating support 5. Stops are also provided on the lead screw 10 on both sides of the connecting frame 8. These stops have the same structure and function as the stop 31 on the screw 14, restricting the axial movement of the lead screw 10. The lead screw 10 is rotatably connected to the connecting frame 8.

[0031] The connecting frame 8 is fixed on the rotating support 5. By rotating the lead screw 10 at the connecting frame 8, the lead screw 10 pushes the positioning support 6 to move.

[0032] The positioning support 6 is also provided with a positioning block 29 for adjusting the height of the workpiece. A limit rod 30 is provided on the positioning support 6. Specifically, both the positioning block 29 and the positioning support 6 have corresponding holes, allowing the limit rod 30 to be inserted into these holes to connect the positioning block 29 to the positioning support 6. Each positioning support 6 has a clamping mechanism fixed to its side. The clamping mechanism includes a telescopic component 23 and a clamping arm 21. The fixed end of the telescopic component 23 is fixed to the positioning support 6. In this embodiment, the telescopic component 23 is a hydraulic cylinder. One end of the clamping arm 21 is connected to the telescopic end of the telescopic component 23, and the other end is suspended. A positioning bolt 9 is fixed to the suspended end of the clamping arm 21. The positioning bolt 9 and the positioning support 6 are arranged vertically opposite each other. The cooperation between the positioning bolt 9 and the positioning block 29 improves the clamping degree and increases the stability of the workpiece during processing.

[0033] The clamping mechanism also includes a connecting rod 7 and an auxiliary support 26. The auxiliary support 26 is connected to the positioning support 6, and the connecting rod 7 is hinged to the upper part of the auxiliary support 26. The connecting rod 7 is hinged to the clamping arm 21. When the telescopic member 23 moves the clamping arm 21, the connecting rod rotates with the movement of the telescopic member 23.

[0034] To further improve the stability of the workpiece during processing, the auxiliary support device includes a connecting seat 2 and a support seat 3. The connecting seat 2 is fixed to the base 1, and the support seat 3 is fixed to the upper part of the connecting seat 2. An auxiliary clamping device is provided on the top of the support seat 3. Specifically, the auxiliary clamping device includes a telescopic component 19 and a manual adjustment device. The top of the support seat 3 has a groove, causing the longitudinal section of the support seat 3 to have a "U" shape. The telescopic component 19 and the manual adjustment device are respectively set on the support seat 3 on both sides of the groove. The telescopic component 19 and the manual adjustment device work together to clamp the workpiece. In this embodiment, the telescopic component 19 is a hydraulic cylinder. The telescopic end of the telescopic component 19 passes through the support seat 3 and is set in the groove. The manual adjustment device includes a support rod 24 and a handle 25. One end of the support rod 24 is fixed to the handle 25, and the other end passes through the support seat 3 and is set in the groove. The support rod 24 is threadedly connected to the support seat 3.

[0035] When in use, place the workpiece on the positioning support 6 so that the part of the workpiece to be processed is placed in the groove of the support 3. Determine whether the part of the workpiece to be processed can contact the auxiliary clamping device. If it cannot contact effectively, the positioning block 29 can be added to adjust the placement height of the workpiece so that the part of the workpiece to be processed can contact the auxiliary clamping device.

[0036] After the workpiece is placed, rotate the lead screw 10 to adjust the distance between the positioning supports 6, so that the clamping mechanism can effectively contact the workpiece during operation. This allows the positioning surface of the workpiece to better fit the positioning support 6 or the positioning block 29, ensuring the workpiece is in contact with and positioned against the positioning support 6. Activate the telescopic component 23 to bring the positioning bolt 9 fixed on the clamping arm 21 into contact with the workpiece. If the contact area is too small, the positioning bolt 9 can be rotated for minor adjustment to firmly press the workpiece against the positioning block 29 of the positioning support 6. This ensures stable positioning and prevents workpiece displacement during processing.

[0037] After clamping and positioning, based on the workpiece's bending angle, rotate the handle 13 on the screw 14, causing the screw 14 to push the connecting piece 15 and rotate the rotating support 5. Observe the pointer 17 pointing to the corresponding degree on the degree indicator 18, then tighten the bolts on the rotating support 5 and the fixed support 4 to fix the rotating support 5 and the fixed support 4. After angle adjustment, adjust the auxiliary support device so that the center line of the workpiece's machining surface is located at the center of the groove of the auxiliary support device's support seat 3. Then, rotate the handle 25 so that the support rod 24 contacts the side of the workpiece, and activate the telescopic component 19 to clamp the workpiece at its telescopic end. This achieves workpiece clamping. After the angled workpiece has been positioned, clamped, angle-aligned, and assisted in clamping, the machining surface can be processed. This utility model can achieve the positioning and clamping of workpieces at different angles.

[0038] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A tooling for clamping angular workpieces, characterized in that, The device includes a base (1), an auxiliary support device, a fixed support (4), and a workpiece clamping device. The auxiliary support device and the fixed support (4) are both fixed on the base (1). The auxiliary support device supports the part of the workpiece to be processed. A rotating support (5) is provided on the upper part of the fixed support (4). An angle adjustment device is provided between the rotating support (5) and the fixed support (4). The angle adjustment device adjusts the rotation angle of the rotating support (5) relative to the fixed support (4). A workpiece clamping device is provided on the upper part of the rotating support (5). The workpiece clamping device includes a positioning mechanism and a clamping mechanism. The positioning mechanism is provided on the rotating support (5). The clamping mechanism is fixed on the positioning mechanism. The positioning surface of the workpiece is provided on the positioning mechanism. The clamping mechanism presses the workpiece onto the positioning mechanism.

2. The tooling for clamping angular workpieces according to claim 1, characterized in that, The angle adjustment device includes a connector (15), a screw (14) and a fixing sleeve (12). The fixing sleeve (12) is fixed to the lower part of the fixing support (4). The connector (15) is located on the side of the rotating support (5). One end of the screw (14) is connected to the connector (15), and the other end passes through the fixing sleeve (12) and is suspended. The suspended end of the screw (14) is connected to a handle (13). The screw (14) is threadedly connected to the fixing sleeve (12).

3. The tooling for clamping angular workpieces according to claim 1, characterized in that, The positioning mechanism includes at least two positioning supports (6), which are slidably mounted on a rotating support (5). Each positioning support (6) is connected to a lead screw (10), and a connecting frame (8) is provided on the opposite side of the lead screw (10). The connecting frame (8) is fixedly connected to the rotating support (5), and the lead screw (10) is rotatably connected to the connecting frame (8). Rotating the lead screw (10) causes the positioning support (6) to move.

4. The tooling for clamping angular workpieces according to claim 3, characterized in that, The positioning support (6) is also provided with a positioning block (29) for adjusting the height of the workpiece. The upper part of the positioning support is provided with a limiting rod (30). The positioning block (29) is set on the positioning support (6) through the limiting rod (30).

5. A tooling for clamping angular workpieces according to claim 3, characterized in that, Each of the positioning supports (6) is fixed with a clamping mechanism, which includes a telescopic component (23) and a clamping arm (21). The fixed end of the telescopic component (23) is fixed to the positioning support (6). One end of the clamping arm (21) is connected to the telescopic end of the telescopic component (23), and the other end is suspended. The suspended end of the clamping arm (21) is fixed with a positioning bolt (9), which is arranged vertically opposite to the positioning support (6).

6. A tooling for clamping angular workpieces according to claim 5, characterized in that, The clamping mechanism also includes a connecting rod (7) and an auxiliary support (26). The auxiliary support (26) is connected to the positioning support (6). The upper part of the auxiliary support (26) is hinged to the connecting rod (7), and the connecting rod (7) is hinged to the clamping arm (21).

7. A tooling for clamping angular workpieces according to claim 1, characterized in that, The auxiliary support device includes a connecting seat (2) and a support seat (3). The connecting seat (2) is fixed on the base (1), and the lower part of the support seat (3) is fixed to the upper part of the connecting seat (2). An auxiliary clamping device is provided on the top of the support seat (3).

8. A tooling for clamping angular workpieces according to claim 7, characterized in that, The auxiliary clamping device includes a telescopic component two (19) and a manual adjustment device. The top of the support base (3) is provided with a groove. The telescopic component two (19) and the manual adjustment device are respectively arranged opposite to each other on the support base (3) on both sides of the groove. The telescopic component two (19) and the manual adjustment device work together to clamp the workpiece.

9. A tooling for clamping angular workpieces according to claim 8, characterized in that, The fixed end of the telescopic component 2 (19) is fixed to the support base (3), and the telescopic end of the telescopic component 2 (19) extends through the support base (3) into the groove; the manual adjustment device includes a handle (25) and a support rod (24), one end of the support rod (24) is fixed to the handle (25), and the other end of the support rod (24) extends through the support base (3) into the groove, and the support rod (24) is threadedly connected to the support base (3).

10. A tooling for clamping angular workpieces according to claim 1, characterized in that, A pointer (17) is provided on the rotating support (5), and a degree indicator (18) is provided on the fixed support (4). The pointer (17) indicates the degree on the degree indicator (18).

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