Camshaft eccentricity cutting fixture
By designing an eccentric cutting fixture for camshaft machining, a precise positioning of the camshaft is achieved by using a motor-driven threaded rod and hexagonal screws. Combined with a chip removal fan to clean up residue, the problem of insufficient stability of traditional fixtures is solved, thereby improving processing efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HUANQIU STEERING GEAR MFG CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional camshafts lack stability under the action of fixtures, which makes them prone to shifting during processing and affects the yield of finished products.
Design an eccentric cutting fixture for camshaft machining. Through the cooperation of a motor-driven threaded rod and a hexagonal screw, the camshaft can be precisely positioned and fixed. It is also equipped with a chip removal fan to clean up residue.
It improves the positioning stability of the camshaft, reduces axial movement, increases production efficiency and product qualification rate, and also improves cleaning efficiency.
Smart Images

Figure CN224406960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camshaft machining technology, specifically to an eccentric cutting fixture for camshaft machining. Background Technology
[0002] In pump products, the camshaft machining process is crucial, as it is a key high-speed rotating component in emergency pumps, requiring very high machining and precision. Camshafts need to undergo specialized cutting to fit different specifications of pump products. However, the stability of traditional camshafts under the action of fixtures is far less reliable than that of the tooling itself, and they are prone to axial movement during cutting, which greatly affects the finished product qualification rate of camshaft machining. To address the above problems, the inventors have proposed an eccentric cutting fixture for camshaft machining to solve the aforementioned issues. Utility Model Content
[0003] To solve the above technical problems, the present invention adopts the following technical solution: a camshaft machining eccentric cutting fixture, including a tooling table, a camshaft body movably inserted into one end of the tooling table, a movable groove opened on the upper inner side of the camshaft body, a clamping member slidably installed on the inner side of the movable groove, a connecting ring fixedly connected to the top of the clamping member, a hexagonal screw threadedly installed on the top of the tooling table, the bottom end of the hexagonal screw rotatably connected to the connecting ring, a slot opened on the lower part of the tooling table, a first motor fixedly installed on the inner side of the slot, a threaded rod fixedly connected to the drive end of the first motor, a movable plate threadedly sleeved on the outer side of the threaded rod, a chuck fixedly installed on the top of the movable plate, and one end of the chuck movably sleeved on the outer side of the camshaft body.
[0004] Preferably, a support frame is fixedly installed at the top of the tooling table, a main shaft is rotatably installed on the inner side of the support frame, a vertical rod is fixedly connected to one end of the main shaft, a chip removal fan is fixedly connected to the bottom end of the vertical rod, a driven gear is fixedly sleeved on the outer side of the main shaft, a second motor is fixedly installed on the inner side of the support frame, a main gear is fixedly connected to the drive end of the second motor, and the main gear meshes with the driven gear.
[0005] Preferably, a guide plate is fixedly installed at one end of the tooling table, and one end of the movable plate is slidably sleeved on the outside of the guide plate.
[0006] Preferably, a limit strip is fixedly connected to one end of the threaded rod.
[0007] Preferably, the bottom of the tooling table is fixedly equipped with an array of square pads.
[0008] Preferably, symmetrically distributed handles are fixedly installed on the outer side of the tooling table.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] 1. Through the cooperation of the first motor, threaded rod, moving plate and chuck, the hexagonal screw is turned and moved down, which drives the connecting ring to move down. The connecting ring then pushes the clamp to slide in the movable groove. Finally, the clamp fixes the camshaft body again, which effectively improves the positioning stability of the camshaft body, reduces the phenomenon of axial movement, and significantly improves production efficiency, economic benefits and product qualification rate.
[0011] 2. The chip removal fan is activated to clean the residue from the camshaft body after machining. The second motor controls the rotation of the main gear, which drives the driven gear to rotate. The driven gear then drives the main shaft and the chip removal fan to move, thereby expanding the range of the chip removal fan that blows away the residue and effectively improving the cleaning efficiency. It is quite practical. Attached Figure Description
[0012] 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.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model.
[0015] Figure 3 This is a schematic diagram showing the disassembled structure of the support frame of this utility model.
[0016] In the diagram: 1. Tooling table; 11. Camshaft body; 12. Movable slot; 13. Clamp; 14. Connecting ring; 15. Hex bolt; 16. Slot; 17. First motor; 18. Threaded rod; 19. Moving plate; 20. Chuck; 21. Support frame; 22. Main shaft; 23. Vertical rod; 24. Chip removal fan; 25. Driven gear; 26. Second motor; 27. Main gear; 28. Guide plate; 29. Limiting strip; 30. Square pad; 31. Handle. Detailed Implementation
[0017] 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.
[0018] Example: Figure 1-3 As shown, this utility model provides a technical solution: a camshaft machining eccentric cutting fixture, including a tooling table 1, a camshaft body 11 movably inserted into one end of the tooling table 1, a movable groove 12 is provided on the upper inner side of the camshaft body 11, a clamping member 13 is slidably installed on the inner side of the movable groove 12, a connecting ring 14 is fixedly connected to the top of the clamping member 13, a hexagonal screw 15 is threadedly installed on the top of the tooling table 1, the bottom end of the hexagonal screw 15 is rotatably connected to the connecting ring 14, a slot 16 is provided on the lower part of the tooling table 1, a first motor 17 is fixedly installed on the inner side of the slot 16, a threaded rod 18 is fixedly connected to the drive end of the first motor 17, a moving plate 19 is threadedly sleeved on the outer side of the threaded rod 18, a chuck 20 is fixedly installed on the top of the moving plate 19, and one end of the chuck 20 is movably sleeved on the outer side of the camshaft body 11.
[0019] A support frame 21 is fixedly installed at the top of the tooling table 1. A main shaft 22 is rotatably installed on the inner side of the support frame 21. A vertical rod 23 is fixedly connected to one end of the main shaft 22. A chip removal fan 24 is fixedly connected to the bottom end of the vertical rod 23. A driven gear 25 is fixedly sleeved on the outer side of the main shaft 22. A second motor 26 is fixedly installed on the inner side of the support frame 21. A main gear 27 is fixedly connected to the drive end of the second motor 26. The main gear 27 and the driven gear 25 are meshed together.
[0020] By adopting the above technical solution, the camshaft body 11 after machining is cleaned by starting the chip removal fan 24. The second motor 26 controls the rotation of the main gear 27, which drives the driven gear 25 to rotate. The driven gear 25 then drives the main shaft 22 and the chip removal fan 24 to move, thereby expanding the range of the chip removal fan 24 that blows away the residue and effectively improving the cleaning efficiency. It has good practicality.
[0021] One end of the tooling table 1 is fixedly installed with a guide plate 28, and one end of the movable plate 19 is slidably sleeved on the outside of the guide plate 28.
[0022] By adopting the above technical solution, the movable plate 19 is guided and limited by sliding one end on the guide plate 28.
[0023] One end of the threaded rod 18 is fixedly connected to a limit strip 29.
[0024] By adopting the above technical solution, the movable plate 19 is limited and prevented from detaching by setting the limit strip 29.
[0025] The bottom of the tooling table 1 is fixedly installed with an array of square pads 30.
[0026] By adopting the above technical solution, the support stability of the tooling table 1 is improved by setting a square pad 30.
[0027] Symmetrically distributed handles 31 are fixedly installed on the outer side of the tooling table 1.
[0028] By adopting the above technical solution, the device can be easily moved by using the handle 31.
[0029] Working principle: First, the camshaft body 11 is inserted into the tooling table 1 for positioning. Then, the first motor 17 rotates the threaded rod 18, which drives the moving plate 19 to move. The moving plate 19 drives the chuck 20 to move, and the chuck 20 engages with one end of the camshaft body 11, thereby accurately positioning the camshaft body 11 at the angle. Then, the hexagonal screw 15 is tightened, which rotates and moves downward, causing the connecting ring 14 to move downward. The connecting ring 14 then pushes the clamp 13 to slide in the movable groove 12. Finally, the clamp 13 holds the camshaft body in place. The camshaft body 11 is re-fixed, which effectively improves the positioning stability of the camshaft body 11 and reduces the phenomenon of axial movement, thereby significantly improving production efficiency, economic benefits and product qualification rate. After the cutting is completed, the chip removal fan 24 is started to clean the residue of the camshaft body 11 after cutting. The second motor 26 controls the rotation of the main gear 27, which drives the driven gear 25 to rotate. The driven gear 25 then drives the main shaft 22 and the chip removal fan 24 to move, thereby expanding the range of the chip removal fan 24 to blow away the residue, effectively improving the cleaning efficiency and demonstrating good practicality.
[0030] 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 camshaft machining eccentric cutting fixture, comprising a tooling table (1), characterized in that: One end of the tooling table (1) is movably inserted with a camshaft body (11). The upper inner side of the camshaft body (11) is provided with a movable groove (12). A clamp (13) is slidably installed on the inner side of the movable groove (12). A connecting ring (14) is fixedly connected to the top of the clamp (13). A hexagonal screw (15) is threaded on the top of the tooling table (1). The bottom end of the hexagonal screw (15) is rotatably connected to the connecting ring (14). A slot (16) is provided at the lower part of the tooling table (1). A first motor (17) is fixedly installed on the inner side of the slot (16). A threaded rod (18) is fixedly connected to the drive end of the first motor (17). A moving plate (19) is threadedly sleeved on the outer side of the threaded rod (18). A chuck (20) is fixedly installed on the top of the moving plate (19). One end of the chuck (20) is movably sleeved on the outer side of the camshaft body (11).
2. The eccentric cutting fixture for a camshaft as described in claim 1, characterized in that, A support frame (21) is fixedly installed at the top of the tooling table (1). A main shaft (22) is rotatably installed on the inner side of the support frame (21). A vertical rod (23) is fixedly connected to one end of the main shaft (22). A chip removal fan (24) is fixedly connected to the bottom end of the vertical rod (23). A driven gear (25) is fixedly sleeved on the outer side of the main shaft (22). A second motor (26) is fixedly installed on the inner side of the support frame (21). A main gear (27) is fixedly connected to the drive end of the second motor (26). The main gear (27) meshes with the driven gear (25).
3. The eccentric cutting fixture for a camshaft as described in claim 1, characterized in that, One end of the tooling table (1) is fixedly installed with a guide plate (28), and one end of the movable plate (19) is slidably sleeved on the outside of the guide plate (28).
4. The eccentric cutting fixture for a camshaft as described in claim 1, characterized in that, One end of the threaded rod (18) is fixedly connected to a limiting strip (29).
5. The eccentric cutting fixture for a camshaft as described in claim 1, characterized in that, The bottom of the tooling table (1) is fixedly installed with an array of square pads (30).
6. The eccentric cutting fixture for a camshaft as described in claim 1, characterized in that, The tooling table (1) is fixedly equipped with symmetrically distributed handles (31).