Special tool for half shaft forging press
By designing a special tooling for a half-shaft forging press that includes a base, a fixed sleeve, a positioning component, and an adjustment mechanism, the problems of inaccurate positioning and unstable clamping of traditional forging tooling were solved. This achieved precise positioning and stable clamping of the half-shaft workpiece, improving processing accuracy and production efficiency while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOJI WANXIUTONG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional forging fixtures suffer from problems such as inaccurate positioning and unstable clamping, which can lead to defects such as deformation and cracks in the workpiece during the forging process, affecting product quality and production efficiency.
A special tooling for a half-shaft forging press was designed, comprising a base, a fixed sleeve, a positioning component, a movable seat, and an adjustment mechanism. The movable seat is driven to rotate and the position of the clamping block is adjusted by a hydraulic cylinder, achieving precise positioning and stable clamping. The clamping effect is enhanced by the combination of a positioning tube and a connecting block.
It improves machining accuracy and production efficiency, has strong adaptability, reduces production costs and maintenance difficulty, and ensures high-quality machining of half-shaft workpieces.
Smart Images

Figure CN224209065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of half-shaft machining technology, and in particular to a special tooling for a half-shaft forging press. Background Technology
[0002] Half-shafts are important components in automotive transmission systems, and the quality of their forging directly affects the vehicle's performance and safety. When machining half-shafts using a forging press, tooling is required for positioning and clamping.
[0003] However, traditional forging fixtures suffer from problems such as inaccurate positioning and unstable clamping, which can lead to defects such as deformation and cracks in the workpiece during the forging process, affecting product quality and production efficiency.
[0004] Therefore, we propose a special tooling for a half-shaft forging press. Utility Model Content
[0005] The purpose of this utility model is to solve the problems of inaccurate positioning and unstable clamping in existing forging fixtures, which lead to defects such as deformation and cracks in the workpiece during forging, thus affecting product quality and production efficiency. Therefore, a special fixture for a half-shaft forging press is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A special tooling for a half-shaft forging press includes:
[0008] The base has a clearance groove on one side, and a fixing sleeve is fixedly installed on the bottom inner wall of the clearance groove. A positioning element is threadedly connected to the inner wall of the fixing sleeve.
[0009] A fixed seat is fixedly provided on the surface of the base. A movable seat is rotatably connected to one side of the fixed seat. The fixed seat and the movable seat are provided with mounting grooves on the sides that are close to each other. The top and bottom of the mounting grooves are provided with clearance openings. A clamping block is slidably connected in the mounting groove. One side of the clamping block is arc-shaped.
[0010] The surface of the base is provided with a drive mechanism for adjusting the rotation of the movable seat;
[0011] The fixed seat and the movable seat are each provided with an adjustment mechanism on the side that is far apart from each other, for adjusting the position of the clamping block.
[0012] In one possible design, the drive mechanism includes a first mounting base and a second mounting base. The first mounting base is fixed to the surface of the base, and a first hydraulic cylinder is rotatably connected between the top inner wall and the bottom inner wall of the first mounting base. The second mounting base is fixed to one side of the movable base, and one end of the piston rod of the first hydraulic cylinder is rotatably connected to the second mounting base.
[0013] In one possible design, the adjusting mechanism includes a screw and a retaining ring. The screw rotates through one side of the fixed base, with one end extending into the mounting groove and threadedly connected to one side of the clamping block. Another end of the screw extends to the outside of the fixed base and has a sliding groove. A slider is slidably connected in the sliding groove, and a spring is fixed between one side of the slider and the inner wall of one side of the sliding groove. The retaining ring is fixed to one side of the fixed base, and multiple adjusting grooves are formed on the inner wall of the retaining ring. The two ends of the slider are located in two of the adjusting grooves.
[0014] In one possible design, a connecting block is fixed to one side of both the fixed seat and the movable seat. The two connecting blocks are combined to form a frustum shape. A second hydraulic cylinder is fixed to the surface of the base. A connecting cylinder is fixed to one end of the piston rod of the second hydraulic cylinder. A connecting groove is opened on one side of the connecting cylinder. The connecting block and the connecting groove cooperate with each other.
[0015] In one possible design, the positioning element includes a positioning tube with an external thread at the bottom of its outer wall and multiple positioning grooves on its inner wall.
[0016] In one possible design, a handle is fixed to one side of the slider.
[0017] In this application, during use, the prefabricated positioning parts are installed onto the fixed sleeve according to the specifications of the half-shaft. Then, the position of the clamping block is adjusted according to the specifications of the half-shaft. During adjustment, the handle and slider are pulled by hand to move the slider out of the adjustment groove. Then, the handle is turned, which drives the screw to rotate, thereby moving the clamping block. When the clamping block moves to the appropriate position, the handle is moved to push the slider back, so that the slider aligns with the corresponding adjustment groove. Then, the first hydraulic cylinder is activated to drive the movable seat to rotate and unfold. Then, one end of the half-shaft is inserted into the positioning tube, and the positioning groove is used to initially position the half-shaft. Then, the first hydraulic cylinder drives the movable seat and the fixed seat to merge, clamping the half-shaft. Then, the second hydraulic cylinder is activated to drive the connecting cylinder to move. The connecting cylinder drives the connecting groove and the connecting block to align, thereby making the fixed seat and the movable seat tightly merged, ensuring the clamping effect of the half-shaft.
[0018] Beneficial effects:
[0019] 1. Improved machining accuracy: Through precise positioning and stable clamping, this utility model achieves precise control of the half-shaft workpiece during the forging process, thereby improving machining accuracy and product quality.
[0020] 2. Improve production efficiency: The tooling is reasonably designed and easy to operate, enabling quick positioning and clamping of the half-shaft workpiece, shortening the processing cycle and improving production efficiency.
[0021] 3. High adaptability: Through the design of the adjustment mechanism, this utility model can adapt to the processing needs of half-shaft workpieces of various specifications and shapes, and has strong applicability and flexibility.
[0022] 4. Reduced production costs: The tooling structure is simple, easy to manufacture and maintain, thus reducing production and maintenance costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a special tooling for a half-shaft forging press proposed in this utility model;
[0024] Figure 2 This is a partial three-dimensional structural schematic diagram from a first-view perspective of a special tooling for a half-shaft forging press proposed in this utility model.
[0025] Figure 3 This is a partial three-dimensional structural schematic diagram from a second perspective of a special tooling for a half-shaft forging press proposed in this utility model.
[0026] Figure 4 This is a partial three-dimensional structural diagram from a third-view perspective of a special tooling for a half-shaft forging press proposed in this utility model.
[0027] Figure 5 This is a schematic diagram of the positioning component structure of a special tooling for a half-shaft forging press proposed in this utility model.
[0028] In the diagram: 1. Base; 2. Clearance groove; 3. Fixing sleeve; 4. Fixing seat; 5. Movable seat; 6. First mounting seat; 7. Second mounting seat; 8. First hydraulic cylinder; 9. Mounting groove; 10. Clearance opening; 11. Clamping block; 12. Screw; 13. Slide groove; 14. Slider; 15. Spring; 16. Fixing ring; 17. Adjustment groove; 18. Handle; 19. Second hydraulic cylinder; 20. Connecting cylinder; 21. Connecting groove; 22. Connecting block; 23. Positioning tube; 24. Positioning groove. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] Example 1: Refer to Figures 1-5 A tooling, comprising:
[0031] The base 1 has a clearance groove 2 on one side to provide space for the installation of the half shaft. The bottom inner wall of the clearance groove 2 is fixed with a fixing sleeve 3. The inner wall of the fixing sleeve 3 is threaded with a positioning element for positioning the half shaft.
[0032] A fixed seat 4 is fixedly provided on the surface of the base 1. A movable seat 5 is rotatably connected to one side of the fixed seat 4. The fixed seat 4 and the movable seat 5 are provided with mounting grooves 9 on the sides that are close to each other. The top and bottom of the mounting groove 9 are provided with clearance openings 10. A clamping block 11 is slidably connected in the mounting groove 9. One side of the clamping block 11 is arc-shaped. The opening of the clearance opening 10 is larger than the travel distance of the clamping block 11, which facilitates the installation of half shafts of various specifications.
[0033] The surface of the base 1 is provided with a drive mechanism for adjusting the rotation of the movable seat 5. The drive mechanism includes a first mounting seat 6 and a second mounting seat 7. The first mounting seat 6 is fixed on the surface of the base 1. A first hydraulic cylinder 8 is rotatably connected between the top inner wall and the bottom inner wall of the first mounting seat 6. The second mounting seat 7 is fixed on one side of the movable seat 5. One end of the piston rod of the first hydraulic cylinder 8 is rotatably connected to the second mounting seat 7. When the piston rod of the first hydraulic cylinder 8 extends or retracts, it can push or pull the movable seat 5 to rotate around the pivot on one side of the fixed seat 4, thereby realizing the opening and closing of the movable seat 5 and the fixed seat 4, and completing the clamping and releasing operation of the half shaft.
[0034] Adjustment mechanisms are provided on the opposite sides of the fixed base 4 and the movable base 5 to adjust the position of the clamping block 11. The adjustment mechanism includes a screw 12 and a fixing ring 16. The screw 12 rotates through one side of the fixed base 4. One end of the screw 12 extends into the mounting groove 9 and is threadedly connected to one side of the clamping block 11. By rotating the screw 12, the clamping block 11 can be moved along the axial direction of the screw 12 in the mounting groove 9, thereby adjusting the position of the clamping block 11 to meet the clamping requirements of various diameter half shafts. One end of the screw 12 extends to the outside of the fixed base 4 and has a sliding groove 13. A slider 14 is slidably connected in the sliding groove 13. A spring 15 is fixed between one side of the slider 14 and the inner wall of one side of the sliding groove 13. The spring 15 is in a compressed state and always applies an outward elastic force to the slider 14. The fixing ring 16 is fixed on one side of the fixed base 4. Multiple adjustment grooves 17 are opened on the inner wall of the fixing ring 16. The two ends of the slider 14 are located in two of the adjustment grooves 17. Under the force of spring 15, both ends of slider 14 are always located within one of the two adjustment slots 17, thereby positioning screw 12 and preventing screw 12 from rotating on its own without human intervention. When it is necessary to adjust the position of clamp 11, the force of spring 15 can be overcome by external force to pull slider 14 out of adjustment slot 17, and then screw 12 can be rotated. After adjustment, slider 14 is released, allowing it to re-lock into adjustment slot 17 under the force of spring 15, thus completing the positioning of screw 12.
[0035] This application can be used in the field of half-shaft machining, or in other fields applicable to this application.
[0036] Example 2: An improved tooling for a half-shaft forging press, based on Example 1, which is applied to the field of half-shaft machining;
[0037] In another aspect of this embodiment, a connecting block 22 is fixed to one side of both the fixed seat 4 and the movable seat 5. The two connecting blocks 22, when combined, form a frustum shape. A second hydraulic cylinder 19 is fixed to the surface of the base 1. A connecting cylinder 20 is fixed to one end of the piston rod of the second hydraulic cylinder 19. A connecting groove 21 is opened on one side of the connecting cylinder 20, and the connecting block 22 and the connecting groove 21 cooperate with each other. When the movable seat 5 rotates to the closed position with the fixed seat 4, the two connecting blocks 22 merge. At this time, the second hydraulic cylinder 19 is activated, and the piston rod of the second hydraulic cylinder 19 retracts, causing the connecting block 22 to enter the connecting groove 21, so that the movable seat 5 and the fixed seat 4 fit tightly together, further enhancing the clamping force on the half shaft and ensuring that the half shaft will not loosen during the forging process.
[0038] In another aspect of this embodiment, the positioning component includes a positioning tube 23. The bottom end of the outer wall of the positioning tube 23 is provided with an external thread, and the inner wall of the positioning tube 23 is provided with a plurality of positioning grooves 24. Positioning components of different specifications can be prefabricated and replaced according to the specifications of the half shaft.
[0039] In another aspect of this embodiment, a handle 18 is fixed on one side of the slider 14, which makes it convenient for people to adjust the slider 13.
[0040] However, as is well known to those skilled in the art, the working principles and wiring methods of the first hydraulic cylinder 8 and the second hydraulic cylinder 19 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.
[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A special tooling for a half-shaft forging press, characterized in that, include: The base (1) has a relief groove (2) on one side, and a fixing sleeve (3) is fixedly provided on the bottom inner wall of the relief groove (2). The fixing sleeve (3) is threadedly connected to the inner wall of the fixing sleeve (3). A fixed seat (4) is fixedly provided on the surface of the base (1). A movable seat (5) is rotatably connected to one side of the fixed seat (4). An installation groove (9) is provided on the side of the fixed seat (4) and the movable seat (5) that are close to each other. A clearance opening (10) is provided at the top and bottom of the installation groove (9). A clamping block (11) is slidably connected in the installation groove (9). One side of the clamping block (11) is arc-shaped. The surface of the base (1) is provided with a driving mechanism for adjusting the rotation of the movable seat (5); The fixed seat (4) and the movable seat (5) are each provided with an adjustment mechanism on the side away from each other, for adjusting the position of the clamp (11).
2. The special tooling for a half-shaft forging press according to claim 1, characterized in that, The drive mechanism includes a first mounting base (6) and a second mounting base (7). The first mounting base (6) is fixed on the surface of the base (1). A first hydraulic cylinder (8) is rotatably connected between the top inner wall and the bottom inner wall of the first mounting base (6). The second mounting base (7) is fixed on one side of the movable seat (5). One end of the piston rod of the first hydraulic cylinder (8) is rotatably connected to the second mounting base (7).
3. The special tooling for a half-shaft forging press according to claim 2, characterized in that, The adjustment mechanism includes a screw (12) and a fixing ring (16). The screw (12) rotates through one side of the fixed seat (4). One end of the screw (12) extends into the mounting groove (9) and is threadedly connected to one side of the clamping block (11). One end of the screw (12) extends to the outside of the fixed seat (4) and is provided with a sliding groove (13). A slider (14) is slidably connected in the sliding groove (13). A spring (15) is fixed between one side of the slider (14) and the inner wall of one side of the sliding groove (13). The fixing ring (16) is fixed to one side of the fixed seat (4). Multiple adjustment grooves (17) are provided on the inner wall of the fixing ring (16). The two ends of the slider (14) are located in two of the adjustment grooves (17).
4. The special tooling for a half-shaft forging press according to claim 3, characterized in that, A connecting block (22) is fixed on one side of both the fixed seat (4) and the movable seat (5). The two connecting blocks (22) are combined to form a frustum shape. A second hydraulic cylinder (19) is fixed on the surface of the base (1). A connecting cylinder (20) is fixed at one end of the piston rod of the second hydraulic cylinder (19). A connecting groove (21) is opened on one side of the connecting cylinder (20). The connecting block (22) and the connecting groove (21) cooperate with each other.
5. The special tooling for a half-shaft forging press according to claim 4, characterized in that, The positioning component includes a positioning tube (23), the bottom of the outer wall of the positioning tube (23) is provided with an external thread, and the inner wall of the positioning tube (23) is provided with multiple positioning grooves (24).
6. The special tooling for a half-shaft forging press according to claim 5, characterized in that, A handle (18) is fixed on one side of the slider (14).