Machining clamp for die forging part
By designing a linkage clamping mechanism consisting of components such as the lifting seat, rotating frame, and wedge, the problem of unstable clamping of irregular parts by existing clamping mechanisms has been solved, achieving stable clamping and efficient processing of irregular parts.
Patent Information
- Application Number
- CN202422975242.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing clamping mechanisms have difficulty accurately clamping irregularly shaped parts and parts with non-circular cross-sections, especially during forging processes, resulting in unstable clamping.
A machining fixture for die-forged parts was designed, which uses components such as a lifting seat, a rotating frame, a linkage rod, and a wedge. The linkage rod drives the limit rod and the push plate to move, and the wedge locks with the fixed column to achieve stable clamping of irregular parts.
It enables stable clamping of parts with different side dimensions and non-circular cross-sections, improving the applicability and ease of operation of clamping, reducing clamping steps, and improving processing efficiency.
Smart Images
Figure CN223476979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a machining fixture for forged parts. Background Technology
[0002] In Chinese, forgings refer to workpieces or blanks obtained by forging and deforming metal billets. Currently, forgings require further processing after forging. Before machining forgings on a CNC milling machine, a forging clamping mechanism is first used to clamp and fix the forging, and then the CNC milling machine performs milling operations on the forging. However, existing clamping mechanisms have limitations when encountering irregularly shaped parts with inconsistent side diameters; they often fail to accurately clamp such parts. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies in that it is difficult to clamp irregularly shaped parts, and to propose a machining fixture for forging parts.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] Design a machining fixture for die-forged parts, including a worktable and a part. A telescopic component is fixedly installed on the upper surface of the worktable, and a lifting seat is fixedly installed on the upper end of the telescopic component. The part is placed on the upper surface of the lifting seat. A mounting seat is also fixedly installed on the upper surface of the worktable. A positioning mechanism is rotatably installed inside the mounting seat. A fixing column is fixedly installed on the upper surface of the worktable and on one side of the mounting seat. One end of the positioning mechanism is engaged inside the fixing column, and the end of the positioning mechanism presses against the upper surface of the part.
[0006] Preferably, the positioning mechanism includes a rotating frame, one end of which presses against the upper surface of the part, and the other end of which is rotatably connected to the mounting base. A through groove is formed inside the rotating frame, and a fixed column is disposed through the inside of the through groove. A sliding groove is formed inside the rotating frame and on one side of the through groove, and a slider is slidably disposed inside the sliding groove. The end of the slider extends to the outside of the sliding groove and is fixedly mounted with a push plate. A wedge is fixedly mounted at the end of the push plate and engages with the inside of the fixed column. A rotating groove is formed inside the rotating frame and on one side of the sliding groove, and a linkage rod is rotatably mounted inside the rotating groove. The end of the linkage rod passes through the receiving groove and extends to the side of the push plate away from the rotating frame. A limiting groove is formed inside the linkage rod, and a limiting rod is fixedly mounted inside the receiving groove. The limiting rod is disposed through the inside of the limiting groove.
[0007] Preferably, the length direction of the slide is the same as the length direction of the push plate, the length direction of the push plate is the same as the length direction of the rotating frame, and the extension line of the rotating frame passes through the central axis of the part.
[0008] Preferably, the rotating frame, push plate, linkage rod, and fixed column are all located in the same vertical plane.
[0009] Preferably, the upper end of the wedge is inclined downward on the side away from the push plate.
[0010] Preferably, both the telescopic member and the fixed column are vertically arranged along their length.
[0011] The present invention provides a machining fixture for forged parts, which has the following advantages: During operation, the fixture can adjust the part to a suitable height via a lifting seat, push the end of the linkage rod to rotate towards the side closer to the fixed column, and the rotation of the linkage rod can drive the movement of the limiting rod through the limiting groove. The movement of the limiting rod can drive the movement of the push plate, and the movement of the push plate can drive the wedge block to lock with the inside of the fixed column. The push plate squeezes the rotating frame, allowing the rotating frame to press the part. The clamping process is simple and quick. This fixture can clamp parts with different side dimensions and is suitable for parts with non-circular cross-sections. It has high tolerance for the specific shape of the parts and has a wide range of applications. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a machining fixture for die-forged parts proposed in this utility model;
[0013] Figure 2 This is a top view schematic diagram of a machining fixture for die-forged parts proposed in this utility model;
[0014] Figure 3 This is a top view of the rotating frame in a machining fixture for forged parts proposed in this utility model.
[0015] Figure 4 This is a detailed structural diagram of a positioning mechanism in a machining fixture for die-forged parts proposed in this utility model;
[0016] Figure 5 This is a schematic diagram of the structure of a machining fixture for forged parts according to the present invention, showing the state of the part being released.
[0017] In the diagram: 1. Workbench; 2. Mounting base; 3. Rotating frame; 4. Push plate; 5. Linkage rod; 6. Slide groove; 7. Slider; 8. Rotating groove; 9. Receiving groove; 10. Limiting groove; 11. Wedge block; 12. Fixed column; 13. Through groove; 14. Telescopic component; 15. Lifting seat; 16. Part; 17. Limiting rod. Detailed Implementation
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] Example 1: Refer to Figure 1-5 A machining fixture for forged parts includes a worktable 1 and a part 16. Part 16 is an irregularly shaped part, as shown in the attached figure. The diameter of the side flanges of this part varies, and if the cross-section of the part is not circular, existing clamping mechanisms are even more inconvenient for clamping and fixing it. A telescopic component 14, which is an electric telescopic cylinder, is fixedly installed on the upper surface of the worktable 1. A lifting seat 15 is fixedly installed on the upper end of the telescopic component 14. The telescopic component 14 can drive the lifting seat 15 to move up and down. Part 16 is placed on the upper surface of the lifting seat 15. When the lifting seat 15 moves up and down, it will drive the part 16 to move up and down. The side of the lifting seat 15 is evenly engraved with scales to control the height of the lifting seat 15. A mounting base 2 is also fixedly installed on the upper surface of the worktable 1. A positioning mechanism is rotatably installed inside the mounting base 2. The positioning mechanism is used to press the part 16, thereby fixing the position of the part 16. A fixed column 12 is fixedly installed on the upper surface of the workbench 1 and on one side of the mounting base 2. The telescopic component 14 and the fixed column 12 are both vertically arranged in the length direction. One end of the positioning mechanism is engaged inside the fixed column 12, and the end of the positioning mechanism is pressed against the upper surface of the part 16. The fixed column 12 can restrict the positioning mechanism, so that the positioning mechanism can fix the position of the part 16.
[0020] The positioning mechanism includes a rotating frame 3, the other end of which is rotatably connected to the mounting base 2. A through slot 13 is provided inside the rotating frame 3, and a fixing post 12 is disposed through the inside of the through slot 13. When the rotating frame 3 rotates and presses down on the part 16, the through slot 13 allows the fixing post 12 to pass through the rotating frame 3. A sliding groove 6 is provided inside the rotating frame 3 and on one side of the through slot 13. The length direction of the sliding groove 6 is the same as the length direction of the push plate 4. A slider 7 is slidably disposed inside the sliding groove 6. The end of the slider 7 extends to the outside of the sliding groove 6 and is fixedly mounted with the push plate 4. The length direction of the push plate 4 is the same as the length direction of the rotating frame 3. The push plate 4 can slide on the surface of the rotating frame 3 via the slider 7. Furthermore, the cross-sections of the slider 7 and the sliding groove 7 are square or other non-circular shapes to ensure that the push plate 4 does not tilt during sliding.
[0021] A wedge 11 is fixedly installed at the end of the push plate 4. The wedge 11 is existing technology and can be made of aluminum; the specific material is not limited. Moving the push plate 4 moves the wedge 11, which engages inside the fixed post 12. The upper end of the wedge 11, away from the push plate 4, is tilted downwards, and its end engages with the internal groove of the fixed post 12, locking it securely inside. During clamping, the friction between the wedge 11 and the internal groove of the fixed post 12 prevents the wedge 11 from moving with the push plate 4, thus avoiding slippage of the rotating frame 3 during clamping. The deeper the wedge 11 penetrates the fixed post 12, the more firmly the rotating frame 3 presses against the part 16, ensuring the rotating frame 3 is tightly pressed against the surface of the part 16.
[0022] A rotating groove 8 is provided inside the rotating frame 3 and on one side of the slide groove 6. A linkage rod 5 is rotatably installed inside the rotating groove 8. The rotating frame 3, push plate 4, linkage rod 5 and fixed column 12 are all located in the same vertical plane. The end of the linkage rod 5 passes through the receiving groove 9 and extends to the side of the push plate 4 away from the rotating frame 3. A limit groove 10 is provided inside the linkage rod 5. A limit rod 17 is fixedly installed inside the receiving groove 9. The limit rod 17 is provided inside the limit groove 10. When the linkage rod 5 rotates, it will drive the limit rod 17 to move in the limit groove 10. When the limit rod 17 moves, it can drive the push plate 4 to move, so that the push plate 4 can be moved by pushing the linkage rod 5.
[0023] One end of the rotating frame 3 presses against the upper surface of part 16. The extended line of the rotating frame 3 passes through the central axis of part 16. A groove is provided on the upper surface of the lifting seat 15, and part 16 is placed in the groove, ensuring that the position of part 16 does not change each time it is placed. Therefore, when the rotating frame 3 presses against the part, it can clamp the part tightly. When one side of the end of part 16 is clamped, the bottom of the part is restricted by the groove, and the upper end is pressed by the rotating frame 3, which can ensure that part 16 is stable during milling, punching, grinding and other operations. In addition, the rotating frame 3 can directly clamp the part, which can reduce the steps in the part clamping process, shorten the clamping time and improve work efficiency.
[0024] This clamp can hold irregularly shaped parts as shown in the attached diagram, as well as tubular, cylindrical, and other shaped parts. Of course, for parts of different diameters, a lifting seat 15 with a matching groove needs to be replaced. The upper part of the lifting seat 15 can be removed and replaced, with the upper part of the groove having a different diameter as needed. The replaced lifting seat 15 ensures that the part is precisely pressed against the end of the rotating frame 3. The initial height of the part 16 before clamping can be adjusted via the telescopic component 14. The initial height of the part 16 can be adjusted according to its specific height. This ensures that when the rotating frame 3 rotates downwards, it presses precisely against the end of the part 16. However, the telescopic component 14 cannot guarantee a perfect and tight fit between the initial height of the part 16 and the end of the rotating frame 3. Therefore, the degree of pushing the linkage rod 5 needs to be adjusted according to the specific height of the upper end of the part 16. By controlling the depth of the wedge 11 into the fixed post 12, the end of the rotating frame 3 can be tightly clamped and contacted with the part 16. This clamp has high tolerance for the specific shape of the part 16 and a wide range of applications.
[0025] Working Principle: During operation, this machining fixture for forged parts activates the telescopic component 14 to move the lifting seat 15 according to the specific height of part 16. The lifting seat 15 then moves part 16 up and down to adjust it to a suitable height. The rotating frame 3 is rotated so that its end presses against and contacts the end surface of part 16, pushing the end of the linkage rod 5 towards the side closer to the fixed post 12. The rotation of the linkage rod 5 causes the limiting rod 17 to move through the limiting groove 10. The movement of the limiting rod 17 causes the push plate 4 to move, which in turn causes the wedge block 11 to move towards the fixed post 12. The wedge block 11 enters the internal groove of the fixed post 12. The greater the angle of rotation of the linkage rod 5, the greater the distance the wedge block 11 is pushed forward, resulting in a tighter fit between the wedge block 11 and the internal groove of the fixed post 12. This increases the pressure of the rotating frame 3 on the part 16, making the clamping more stable. The part can be processed using external equipment. When the part needs to be released after processing, the linkage rod 5 needs to be pulled in the opposite direction first. The linkage rod 5 will drive the limit rod 17 to move through the limit groove 10. The limit rod 17 will drive the wedge block 11 away from the inner groove of the fixed column 12 through the push plate 4. Then, the rotating frame 3 will be rotated upwards, and the rotating frame 3 will move away from the part, so that the part can be removed. When operating this processing fixture, for the same type of part, it is only necessary to adjust the lifting seat 15 to a suitable height through the telescopic part 14 during the first operation. There is no need to adjust the height repeatedly. When clamping the same type of part, it is only necessary to push and pull the linkage rod 5 to drive the wedge block 11 to cooperate with the fixed column 12, so that the rotating frame 3 can press the part 16. The operation is simple and quick. This fixture can clamp parts with different side dimensions and is suitable for parts with non-circular cross-sections. It has high tolerance for the specific shape of the part and has a wide range of applications.
[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A machining fixture for forged parts, comprising a worktable (1) and a part (16), characterized in that, A telescopic component (14) is fixedly installed on the upper surface of the workbench (1). A lifting seat (15) is fixedly installed on the upper end of the telescopic component (14). The part (16) is placed on the upper surface of the lifting seat (15). A mounting seat (2) is also fixedly installed on the upper surface of the workbench (1). A positioning mechanism is rotatably installed inside the mounting seat (2). A fixing column (12) is fixedly installed on the upper surface of the workbench (1) and on one side of the mounting seat (2). One end of the positioning mechanism is engaged inside the fixing column (12), and the end of the positioning mechanism is pressed against the upper surface of the part (16).
2. The machining fixture for forged parts according to claim 1, characterized in that, The positioning mechanism includes a rotating frame (3), one end of which presses against the upper surface of the part (16), and the other end of which is rotatably connected to the mounting base (2). A through groove (13) is provided inside the rotating frame (3), and a fixing column (12) is provided through the inside of the through groove (13). A sliding groove (6) is provided inside the rotating frame (3) and on one side of the through groove (13). A slider (7) is slidably mounted inside the sliding groove (6), and the end of the slider (7) extends to the outside of the sliding groove (6) and is fixedly mounted with a push plate (4). A wedge (11) is fixedly installed at the end, and the wedge (11) is engaged inside the fixed column (12). A rotating groove (8) is provided inside the rotating frame (3) and on one side of the slide groove (6). A linkage rod (5) is rotatably installed inside the rotating groove (8). The end of the linkage rod (5) passes through the receiving groove (9) and extends to the side of the push plate (4) away from the rotating frame (3). A limiting groove (10) is provided inside the linkage rod (5). A limiting rod (17) is fixedly installed inside the receiving groove (9). The limiting rod (17) is provided inside the limiting groove (10).
3. The machining fixture for forged parts according to claim 2, characterized in that, The length direction of the slide (6) is the same as the length direction of the push plate (4), the length direction of the push plate (4) is the same as the length direction of the rotating frame (3), and the extension line of the length of the rotating frame (3) passes through the central axis of the part (16).
4. The machining fixture for forged parts according to claim 3, characterized in that, The rotating frame (3), push plate (4), linkage rod (5) and fixed column (12) are all located in the same vertical plane.
5. The machining fixture for forged parts according to claim 4, characterized in that, The upper end of the wedge (11) is inclined downward on the side away from the push plate (4).
6. The machining fixture for forged parts according to claim 1, characterized in that, The telescopic component (14) and the fixed column (12) are both vertically arranged in the length direction.