Clamp for machining inner and outer planes of a wheel assembly

Abstract

The utility model discloses a kind of clamps for wheel assembly inner and outer plane processing, it is related to wheel assembly plane processing technical field;And the utility model includes operation platform, array distribution is slidably equipped with positioning bracket in operation platform top, positioning bracket movably inserts connecting rod, connecting rod end portion is fixedly equipped with locating block, positioning bracket top is rotatably equipped with rotating plate, rotating plate end portion is fixedly equipped with pressing rod, connecting rod end away from locating block is fixedly equipped with fixed plate, fixed plate movably inserts in limiting groove, fixed plate outside is fixedly inserted with fixed rod;In the utility model, by setting positioning bracket, locating block, rotating plate and pressing rod and the structure of mutually cooperating, wheel assembly can be stably clamped, at the same time, pressing rod can press down wheel assembly, help to eliminate the micro displacement of workpiece in clamping process, improve concentricity and coaxiality, reduce processing deviation, can reduce the deformation or loosening risk caused by workpiece deadweight and vibration.

Description

Technical Field

[0001] This utility model relates to the field of wheel assembly planar machining technology, specifically a fixture for machining the inner and outer planes of a wheel assembly. Background Technology

[0002] The machining of the inner and outer surfaces of a wheel assembly involves precisely planarizing key contact surfaces such as the hub bore and the inner and outer surfaces of the rim. This process is typically completed using a specialized lathe or CNC machine tool, supported and positioned by a fixture, to ensure the concentricity and coaxiality of the hub and rim during assembly. The fixture plays a crucial role in positioning, fixing, and protecting the workpiece, ensuring its rigidity and stability during machining, thereby achieving high-precision planar machining and good assembly quality. However, existing workpiece positioning is inaccurate and clamping force is insufficient, leading to loosening, deformation, and reduced repeatability accuracy. This results in increased concentricity / coaxiality deviations at key interfaces such as the hub hole and the rim plane, requiring secondary adjustments or rework during assembly. It can even lead to safety hazards and an increase in defective products, resulting in a decrease in overall production efficiency. To address these issues, the inventor proposes a jig for machining the inner and outer planes of a wheel assembly. Utility Model Content

[0003] To solve the problem of inaccurate positioning of wheel assemblies, the purpose of this utility model is to provide a fixture for machining the inner and outer planes of wheel assemblies.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a fixture for machining the inner and outer planes of a wheel assembly, comprising an operating table, a positioning frame arranged in an array slidably on the top of the operating table, a connecting rod movably inserted into the positioning frame, a positioning block fixedly attached to the end of the connecting rod, a rotating plate rotatably attached to the top of the positioning frame, a pressure rod fixedly attached to the end of the rotating plate, a fixing plate fixedly attached to the end of the connecting rod away from the positioning block, a limiting groove formed in the positioning frame, the fixing plate movably inserted into the limiting groove, a fixing rod fixedly inserted into the outer side of the fixing plate, and a square groove formed on the outer side of the rotating plate, the fixing rod movably inserted into the square groove.

[0005] Preferably, the top of the operating table is provided with a sliding groove, a sliding frame is movably inserted in the sliding groove, a rod is fixedly provided at the bottom of the positioning frame, the rod is movably inserted in the sliding frame, a limiting plate is fixedly provided on the outside of the rod, a bolt is movably inserted in the limiting plate, and two screw holes are provided at the bottom of the sliding frame, the bolt is threaded into the screw holes.

[0006] Preferably, a fixed frame is fixedly provided at the bottom of the operating table, a rotating shaft is rotatably inserted inside the fixed frame, a cross is fixedly provided on the outside of the rotating shaft, and connecting plates arranged in an array are rotatably provided on the outside of the cross. The four connecting plates are rotatably connected to four sliding frames respectively. A motor is installed at the bottom of the fixed frame, and the end of the motor output shaft is inserted through the fixed frame and fixedly connected to the rotating shaft.

[0007] Preferably, the fixing frame has an array of mounting holes, an auxiliary rod is fixedly inserted into the limiting groove, the auxiliary rod is movably inserted into the fixing plate, a compression spring is movably sleeved on the outside of the auxiliary rod, a first soft pad is fixedly installed on the outside of the positioning block, and a second soft pad is fixedly sleeved on the outside of the pressure rod.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, by setting up a positioning frame, positioning block, rotating plate and pressure rod and other structures to cooperate with each other, the wheel assembly can be stably clamped. At the same time, the pressure rod can press down on the wheel assembly, which helps to eliminate the micro displacement of the workpiece during the clamping process, improve concentricity and coaxiality, reduce processing deviation, and reduce the risk of deformation or loosening caused by the weight of the workpiece and vibration. 2. In this utility model, by setting up a combination of insert rod, limiting plate, bolt and screw hole and other structures, the positioning frame can be rotated and adjusted, and the outer or inner side of the wheel assembly can be clamped and adjusted as needed, which facilitates the all-round processing of the wheel assembly. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a side view of the overall structure of this utility model.

[0012] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a cross-sectional schematic diagram of the machine connection structure of the positioning frame of this utility model; Figure 5 This is an exploded view of the sliding frame and its connecting structure of this utility model.

[0013] In the diagram: 1. Operating table; 11. Fixing frame; 12. Rotating shaft; 13. Cross; 14. Connecting plate; 15. Motor; 16. Mounting hole; 2. Positioning frame; 21. Connecting rod; 22. Positioning block; 23. No. 1 soft pad; 24. Fixing plate; 25. Fixing rod; 26. Limiting groove; 27. Auxiliary rod; 28. Compression spring; 3. Rotating plate; 31. Pressure rod; 32. Square groove; 33. No. 2 soft pad; 4. Sliding groove; 41. Sliding frame; 42. Insert rod; 43. Limiting plate; 44. Bolt; 45. Screw hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1-5 As shown, this utility model provides a fixture for machining the inner and outer planes of a wheel assembly, including an operating table 1 for machining the wheel assembly. The operating table 1 has a slidable array of positioning frames 2 at its top. Moving the positioning frames 2 moves positioning blocks 22. A connecting rod 21 is movably inserted into the positioning frames 2, guiding the positioning blocks 22. The end of the connecting rod 21 is fixedly fitted with the positioning block 22, allowing it to fit against the wheel assembly and move inwards. A rotating plate 3 is rotatably mounted at the top of the positioning frames 2, rotating the rotating plate 3 and causing a pressure rod 31 to rotate. The end of the rotating plate 3 is fixedly fitted with a pressure rod 31. A pressure rod 31 is fixedly provided. The rotation of the pressure rod 31 can press the wheel assembly downward, which can improve the stability of the wheel assembly. A fixing plate 24 is fixedly provided at the end of the connecting rod 21 away from the positioning block 22. A limit groove 26 is opened in the positioning frame 2. The fixing plate 24 is movably inserted into the limit groove 26. The movement of the fixing plate 24 in the limit groove 26 drives the fixing rod 25 to move. A fixing rod 25 is fixedly inserted into the outside of the fixing plate 24. A square groove 32 is opened on the outside of the rotating plate 3. The fixing rod 25 is movably inserted into the square groove 32. The movement of the fixing rod 25 drives the rotating plate 3 to rotate through the square groove 32.

[0016] The top of the operating table 1 is provided with a sliding groove 4, and a sliding frame 41 is movably inserted in the sliding groove 4. The bottom of the positioning frame 2 is fixed with a rod 42, which is movably inserted in the sliding frame 41. A limiting plate 43 is fixed on the outside of the rod 42, and a bolt 44 is movably inserted in the limiting plate 43. The bottom of the sliding frame 41 is provided with two screw holes 45, and the bolt 44 is threaded into the screw holes 45.

[0017] By adopting the above technical solution, the positioning frame 2 can be rotated and adjusted, and the outer or inner side of the wheel assembly can be clamped and adjusted as needed, which facilitates the all-round processing of the wheel assembly.

[0018] A fixed frame 11 is fixedly provided at the bottom of the operating table 1. A rotating shaft 12 is inserted into the fixed frame 11 and a cross 13 is fixedly provided on the outside of the rotating shaft 12.

[0019] By adopting the above technical solution, the rotating shaft 12 rotates, driving the cross 13 to rotate.

[0020] The outer side of the cross 13 is provided with connecting plates 14 arranged in an array, and the four connecting plates 14 are rotatably connected to the four sliding frames 41 respectively.

[0021] By adopting the above technical solution, the cross 13 rotates, causing the connecting plate 14 to swing, which in turn allows the movable sliding frame 41 to move.

[0022] A motor 15 is installed at the bottom of the fixed frame 11. The end of the output shaft of the motor 15 is inserted through the fixed frame 11 and fixedly connected to the rotating shaft 12.

[0023] By adopting the above technical solution, the output shaft end of the motor 15 rotates, driving the rotating shaft 12 to rotate, thereby providing power output.

[0024] The mounting bracket 11 has mounting holes 16 arranged in an array.

[0025] By adopting the above technical solution, the mounting hole 16 allows the entire device to be installed in the designated area.

[0026] An auxiliary rod 27 is fixedly inserted into the limiting groove 26. The auxiliary rod 27 is movably inserted into the fixed plate 24. A compression spring 28 is movably sleeved on the outside of the auxiliary rod 27.

[0027] By adopting the above technical solution, the auxiliary rod 27 assists the fixed plate 24 in moving laterally.

[0028] A first soft pad 23 is fixedly provided on the outside of the positioning block 22, and a second soft pad 33 is fixedly sleeved on the outside of the pressure rod 31.

[0029] By adopting the above technical solution, the wheel assembly can be protected during clamping and positioning using the first soft pad 23 and the second soft pad 33.

[0030] Working principle: First, place the wheel assembly on the operating platform 1. Then, start the motor 15. The output shaft of the motor 15 rotates, causing the rotating shaft 12 to rotate. The rotating shaft 12 rotates, causing the cross 13 to rotate. The rotation of the cross 13 causes the connecting plate 14 to swing. The swing of the connecting plate 14 causes the sliding frame 41 to slide within the sliding groove 4, which in turn moves the positioning block 22, thus clamping the wheel assembly. As the positioning block 22 moves, it causes the fixing plate 24 to move. The movement of the fixing plate 24 causes the fixing rod 25 to move. The movement of the fixing rod 25 causes the rotating plate 3 to rotate, which in turn causes the pressure rod 31 to rotate. This causes the pressure rod 31 to press down on the wheel assembly, which helps to eliminate the micro-displacement of the workpiece during the clamping process, improve concentricity and coaxiality, reduce machining deviation, and reduce the risk of deformation or loosening caused by the weight and vibration of the workpiece. When it is necessary to clamp the inner side of the wheel assembly, the bolt 44 is removed so that the bolt 44 is disengaged into the screw hole 45. Then, the positioning frame 2 rotates inside the sliding frame 41 through the insertion rod 42, so that the positioning block 22 and the pressure rod 31 rotate 180 degrees. Then, the inner side of the wheel assembly can be clamped through the above operation. The clamping adjustment of the outer or inner side of the wheel assembly can be adjusted as needed to facilitate all-round machining of the wheel assembly.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fixture for machining the inner and outer planes of a wheel assembly, comprising an operating table (1), characterized in that: The top of the operating table (1) is provided with a positioning frame (2) arranged in an array. The positioning frame (2) is movably inserted with a connecting rod (21). The end of the connecting rod (21) is fixed with a positioning block (22). The top of the positioning frame (2) is rotatably provided with a rotating plate (3). The end of the rotating plate (3) is fixed with a pressure rod (31). A fixing plate (24) is fixedly provided at one end of the connecting rod (21) away from the positioning block (22). A limiting groove (26) is opened in the positioning frame (2). The fixing plate (24) is movably inserted into the limiting groove (26). A fixing rod (25) is fixedly inserted on the outside of the fixing plate (24). A square groove (32) is opened on the outside of the rotating plate (3). The fixing rod (25) is movably inserted into the square groove (32).

2. The fixture for machining the inner and outer planes of a wheel assembly as described in claim 1, characterized in that, The top of the operating table (1) is provided with a sliding groove (4), and a sliding frame (41) is movably inserted in the sliding groove (4). The bottom of the positioning frame (2) is fixed with a rod (42), which is movably inserted in the sliding frame (41). A limiting plate (43) is fixed on the outside of the rod (42), and a bolt (44) is movably inserted in the limiting plate (43). The bottom of the sliding frame (41) is provided with two screw holes (45), and the bolt (44) is threaded into the screw holes (45).

3. The fixture for machining the inner and outer planes of a wheel assembly as described in claim 1, characterized in that, The bottom of the operating table (1) is fixedly provided with a fixed frame (11), a rotating shaft (12) is rotatably inserted inside the fixed frame (11), and a cross (13) is fixedly provided on the outside of the rotating shaft (12).

4. The fixture for machining the inner and outer planes of a wheel assembly as described in claim 3, characterized in that, The cross (13) is provided with an array of connecting plates (14) on its outer side, and the four connecting plates (14) are rotatably connected to the four sliding frames (41) respectively.

5. A fixture for machining the inner and outer planes of a wheel assembly as described in claim 3, characterized in that, A motor (15) is installed at the bottom of the fixed frame (11), and the output shaft end of the motor (15) is inserted through the fixed frame (11) and fixedly connected to the rotating shaft (12).

6. A fixture for machining the inner and outer planes of a wheel assembly as described in claim 3, characterized in that, The mounting bracket (11) has mounting holes (16) arranged in an array.

7. A fixture for machining the inner and outer planes of a wheel assembly as described in claim 1, characterized in that, An auxiliary rod (27) is fixedly inserted into the limiting groove (26). The auxiliary rod (27) is movably inserted into the fixed plate (24). A compression spring (28) is movably sleeved on the outside of the auxiliary rod (27).

8. A fixture for machining the inner and outer planes of a wheel assembly as described in claim 1, characterized in that, The positioning block (22) is fixedly provided with a first soft pad (23) on the outside, and the pressure rod (31) is fixedly provided with a second soft pad (33) on the outside.

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