A jig for manufacturing gearbox gears
By rotating the knob to drive the transmission mechanism and threaded rod to clamp and fix the gear, combined with coolant spraying and filter screening, the problem of poor fixture applicability in gearbox gear processing is solved, efficiency and stability are improved, and waste material recycling and coolant recycling are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING GUANHUI GEAR CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-03
AI Technical Summary
The existing gearbox gear machining fixtures have poor applicability, resulting in long fixing times and affecting work efficiency.
A rotating knob drives a transmission mechanism, which causes a slider to move a clamping plate to clamp the gear through hole. A threaded rod is used to clamp the side of the gear, improving its stability. A pump sprays coolant to cool the gear and screens metal scraps for recycling.
It improves the applicability and efficiency of the fixture, reduces the fixing time, enhances the stability of the gears, and realizes the recycling of waste materials and the reuse of coolant, which has economic benefits.
Smart Images

Figure CN224444766U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gearbox parts processing technology, and in particular to a fixture for gearbox gear production and processing. Background Technology
[0002] The gearbox, also known as a transmission, is the core component of a vehicle's drivetrain. It is mainly used to change the engine's output speed and torque to adapt to the vehicle's power demands under different driving conditions. Its core functions include enabling reverse driving, interrupting power transmission, and matching engine speed with wheel speed through different gear ratios, thereby improving fuel economy and driving performance. The working principle of the gearbox is based on gear meshing or the energy transfer of the transmission medium. Modern gearboxes also integrate electronic control units, which can intelligently adjust the shift logic based on signals such as vehicle speed and throttle opening.
[0003] In the prior art, when processing gears used in gearboxes, the gear components need to be clamped and fixed. In the traditional method, different bolts need to be selected according to the diameter of the gear hole for fixing, which results in poor applicability of the fixture and consumes a lot of time during fixing, making it impossible to quickly fix the gears and affecting the working efficiency of the fixture device. Therefore, in order to solve the above problems, this utility model proposes a fixture for gearbox gear production and processing. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a fixture for manufacturing gearbox gears. By rotating a knob, the clamping plate is tightened to fix the gear through hole, which facilitates the fixing of gears with different hole diameters, improves the applicability of the device, and avoids the need to replace the fixing parts repeatedly compared to fixing with bolts, reducing the fixing time and improving the working efficiency of the device.
[0005] This utility model provides the following technical solution: a fixture for manufacturing and processing gearbox gears, including a rotating base. A rotating shaft is movably sleeved at the front of the inner cavity of the rotating base. A knob is fixedly connected to the front of the rotating shaft. A helical gear is fixedly connected to the rear end of the rotating shaft. A rotating shaft is movably sleeved at the right side of the inner cavity of the rotating base. A helical gear is fixedly connected to the left end of the rotating shaft. The helical gear meshes with the helical gear. A turntable is fixedly sleeved on the rotating shaft and located to the right of the helical gear. Six arc-shaped rods are evenly movably connected to the turntable via shafts. Six sliding grooves are evenly opened on the right side of the inner cavity of the rotating base. A slider is movably connected in the sliding groove. The left side of the slider is movably connected to the arc-shaped rod via a shaft. A clamping plate is fixedly installed on the right side of the slider. By rotating the knob, the clamping plate clamps and fixes the gear through hole, which facilitates the device to fix gears of different hole sizes, improves the applicability of the device, avoids the need to change the fixing parts back and forth, reduces the fixing time, and improves the working efficiency of the device.
[0006] Preferably, a fixed cylinder is fixedly installed on the right side of the rotating seat and between the six clamping plates. The fixed cylinder has a threaded cavity. A pressure plate is provided on the right side of the rotating seat. A threaded rod is fixedly installed on the left side of the pressure plate. The threaded rod meshes with the cavity of the fixed cylinder. By aligning the threaded rod with the cavity of the fixed cylinder, rotating the pressure plate causes it to move to the left, clamping the side of the gear and enhancing the stability of the gear component after it is fixed.
[0007] Preferably, a base plate is provided below the rotating seat, and a support frame is fixedly installed on the upper part of the base plate. The right side of the support frame is movably connected to the rotating seat via a shaft. A collection box is fixedly installed on the upper part of the base plate and directly below the clamping plate. A slot is opened at the upper edge of the inner cavity of the collection box. During the processing, the rotating seat can be rotated through the movable connection between the support frame and the rotating seat, thereby adjusting the position of the gear and improving the flexibility of the gear processing.
[0008] Preferably, a fixed frame fits into the slot, a filter screen is fixedly installed in the inner cavity of the fixed frame, and a handrail is fixedly installed on the upper part of the fixed frame. There are four handrails, which are symmetrically distributed front and back. A liquid storage box is fixedly installed on the upper part of the base plate and behind the collection box. After the coolant is sprayed, it passes through the filter screen and falls into the inner cavity of the collection box. The filter screen can screen out metal debris. The fixed frame can be removed from the slot by lifting the handrail, which facilitates the collection of metal debris on the filter screen and is beneficial to the recycling of cutting waste.
[0009] Preferably, a pump is fixedly installed on the upper part of the liquid storage box, a spray pipe is fixedly installed on the upper part of the pump, and a nozzle is fixedly installed on the end of the spray pipe away from the pump. A cooler is fixedly installed on the upper part of the base plate and to the right of the collection box. Pipes are respectively provided between the cooler and the collection box and the liquid storage box. The coolant in the inner cavity of the collection box enters the cooler through the pipe for cooling, and then enters the liquid storage box through the pipe to achieve recycling, which has good economic benefits.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. By rotating the knob to drive the transmission mechanism, the slider moves the clamping plate to clamp and fix the through hole in the middle of the gear. This is beneficial for fixing gear components with different hole diameters, thus improving the applicability of the device. Compared with fixing by bolts, it avoids the need to replace the fixing parts back and forth, effectively reducing the fixing time and improving the working efficiency of the device. Then, align the threaded rod with the inner cavity of the fixing cylinder, rotate the pressure plate to move the pressure plate to the left, clamp the side of the gear, and enhance the stability of the gear component after fixing.
[0012] 2. The coolant in the storage box is pumped out by a pump and sprayed onto the gears through nozzles to cool them down. This prevents the gears from deforming due to excessive temperature during machining and avoids affecting their hardness. After being sprayed, the coolant passes through a filter screen and falls into the inner cavity of the collection box. The filter screen can screen out metal shavings. By lifting the handle upwards, the fixing frame can be removed from the slot, making it easy to collect the metal shavings on the filter screen. This facilitates the recycling of cutting waste. The coolant in the inner cavity of the collection box enters the cooler through pipes for further cooling, and then enters the storage box through pipes for recycling, which has good economic benefits. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the clamping structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the rotating seat of this utility model;
[0016] Figure 4 This is a schematic cross-sectional view of the collection box of this utility model.
[0017] In the diagram: 1. Rotating seat; 2. Rotating shaft one; 3. Knob; 4. Helical gear one; 5. Rotating shaft two; 6. Helical gear two; 7. Turntable; 8. Arc rod; 9. Slide groove; 10. Slider; 11. Clamping plate; 12. Fixed cylinder; 13. Pressure plate; 14. Threaded rod; 15. Base plate; 16. Support frame; 17. Collection box; 18. Groove; 19. Fixed frame; 20. Filter screen; 21. Handrail; 22. Liquid storage box; 23. Pump; 24. Spray pipe; 25. Spray head; 26. Cooler. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-4A jig for manufacturing gearbox gears includes a rotating base 1. A rotating shaft 2 is movably sleeved at the front of the inner cavity of the rotating base 1. A knob 3 is fixedly connected to the front of the rotating shaft 2. A helical gear 4 is fixedly connected to the rear end of the rotating shaft 2. A rotating shaft 5 is movably sleeved at the right side of the inner cavity of the rotating base 1. A helical gear 6 is fixedly connected to the left end of the rotating shaft 5 and meshes with the helical gear 4. A turntable 7 is fixedly sleeved on the rotating shaft 5 and located to the right of the helical gear 6. A shaft evenly connects to the turntable 7. There are six arc-shaped rods 8. Six grooves 9 are evenly spaced on the right side of the inner cavity of the rotating seat 1. A slider 10 is movably connected to each groove 9. The left side of the slider 10 is movably connected to the arc-shaped rod 8 via a shaft. A clamping plate 11 is fixedly installed on the right side of the slider 10. A fixed cylinder 12 is fixedly installed on the right side of the rotating seat 1, located between the six clamping plates 11. The fixed cylinder 12 has threads inside its inner cavity. A pressure plate 13 is located on the right side of the rotating seat 1. A threaded rod 14 is fixedly installed on the left side of the pressure plate 13. 4. Engage with the inner cavity of the fixed cylinder 12, rotate the pressure plate 13 to remove the threaded rod 14 from the inner cavity of the fixed cylinder 12, and then place the gear component on the right side of the rotating seat 1, so that the clamping plate 11 is located in the through hole in the middle of the gear. Rotate the knob 3 to drive the helical gear 4 to rotate through the rotating shaft 2. The helical gear 4 engages with the helical gear 6 to drive the rotating shaft 5 to rotate. The rotating shaft 5 drives the turntable 7 to rotate, so that the arc rod 8 pulls the slider 10 to slide in the slide groove 9, thereby making the six clamping plates 11 move synchronously. The clamping plates 11 are made of a material with a high coefficient of friction. They clamp and fix the through hole in the middle of the gear, which is beneficial for fixing gear components with different hole sizes. This improves the applicability of the device. Compared with fixing by bolt locking, it avoids the need to replace the fixing parts back and forth, which can effectively reduce the fixing time and improve the working efficiency of the device. Then, align the threaded rod 14 with the inner cavity of the fixed cylinder 12, rotate the pressure plate 13 to move the pressure plate 13 to the left, clamp the side of the gear, and enhance the stability of the gear component after fixing.
[0020] A base plate 15 is provided below the rotating seat 1. A support frame 16 is fixedly installed on the upper part of the base plate 15. The right side of the support frame 16 is movably connected to the rotating seat 1 via a shaft. A collection box 17 is fixedly installed on the upper part of the base plate 15 and directly below the clamping plate 11. A slot 18 is opened at the upper edge of the inner cavity of the collection box 17. A fixing frame 19 fits into the slot 18. A filter screen 20 is fixedly installed in the inner cavity of the fixing frame 19. Four handles 21 are fixedly installed on the upper part of the fixing frame 19 and are symmetrically distributed front and back. A liquid storage box 22 is fixedly installed on the upper part of the base plate 15 and behind the collection box 17. A pump 23 is fixedly installed on the upper part of the liquid storage box 22. A spray pipe 24 is fixedly installed on the upper part of the pump 23. A nozzle 25 is fixedly installed on the end of the spray pipe 24 away from the pump 23. A cooler 26 is fixedly installed on the upper part of the base plate 15 and to the right of the collection box 17. The cooler 26 and the collection box 17 are connected. Pipes are installed between the support frame 16 and the storage box 22. During processing, the rotating seat 1 can be rotated through the movable connection between the support frame 16 and the rotating seat 1 to adjust the position of the gear. During processing, the pump 23 is turned on to pump out the coolant from the storage box 22 and transmit it to the spray nozzle 25 through the spray pipe 24 to spray and cool the gear, so as to avoid the gear deformation caused by excessive temperature during processing and prevent the hardness of the gear from being affected. After being sprayed, the coolant passes through the filter screen 20 and falls into the inner cavity of the collection box 17. The filter screen 20 can screen out metal debris. By lifting the handle 21, the fixed frame 19 can be removed from the slot 18, which is convenient for collecting the metal debris on the filter screen 20 and is conducive to the recycling of cutting waste. The coolant in the inner cavity of the collection box 17 enters the cooler 26 through the pipe for cooling, and then enters the storage box 22 through the pipe to achieve recycling, which has good economic benefits.
[0021] Working principle: Rotating the pressure plate 13 removes the threaded rod 14 from the inner cavity of the fixed cylinder 12. Then, the gear component is placed on the right side of the rotating seat 1, so that the clamping plate 11 is located in the through hole in the middle of the gear. Rotating the knob 3 drives the helical gear 4 to rotate through the rotating shaft 2. The helical gear 4 meshes with the helical gear 6, driving the rotating shaft 5 to rotate. The rotating shaft 5 drives the turntable 7 to rotate, causing the arc rod 8 to pull the slider 10 to slide in the slide groove 9, thereby making the six clamping plates 11 move synchronously. The clamping plates 11 are made of a material with a high coefficient of friction to clamp and fix the through hole in the middle of the gear. Then, the threaded rod 14 is aligned with the inner cavity of the fixed cylinder 12. Rotating the pressure plate 13 causes the pressure plate 13 to move to the left, thus moving the gear. The gear is clamped from the side. During processing, the rotating seat 1 can be rotated through the movable connection between the support frame 16 and the rotating seat 1 to adjust the gear's position. During processing, the pump 23 is turned on to pump out the coolant from the storage box 22. The coolant is then transmitted through the spray pipe 24 to the nozzle 25 to spray and cool the gear. After being sprayed, the coolant passes through the filter screen 20 and falls into the inner cavity of the collection box 17. The filter screen 20 can screen out metal debris. By lifting the handle 21, the fixing frame 19 can be removed from the slot 18 to facilitate the collection of metal debris on the filter screen 20. The coolant in the inner cavity of the collection box 17 enters the cooler 26 through a pipe for cooling, and then enters the storage box 22 through a pipe for recycling.
Claims
1. A fixture for manufacturing gearbox gears, comprising a rotating base (1), characterized in that: The rotating seat (1) has a rotating shaft 1 (2) movably sleeved at the front of its inner cavity. A knob (3) is fixedly connected to the front of the rotating shaft 1 (2). A helical gear 1 (4) is fixedly connected to the rear end of the rotating shaft 1 (2). The rotating seat (1) has a rotating shaft 2 (5) movably sleeved at the right side of its inner cavity. A helical gear 2 (6) is fixedly connected to the left end of the rotating shaft 2 (5). The helical gear 2 (6) meshes with the helical gear 1 (4). A turntable (7) is fixedly sleeved on the rotating shaft 2 (5) and located to the right of the helical gear 2 (6). An arc-shaped rod (8) is evenly movably connected to the turntable (7) via a shaft. There are six arc-shaped rods (8). A sliding groove (9) is evenly opened on the right side of the inner cavity of the rotating seat (1). There are six sliding grooves (9). A slider (10) is movably connected in the sliding groove (9). The left side of the slider (10) is movably connected to the arc-shaped rod (8) via a shaft. A clamping plate (11) is fixedly installed on the right side of the slider (10).
2. The gear box gear production and processing clamp according to claim 1, characterized in that: A fixed cylinder (12) is fixedly installed on the right side of the rotating seat (1) and between the six clamping plates (11). The fixed cylinder (12) has a threaded opening in its inner cavity. A pressure plate (13) is provided on the right side of the rotating seat (1). A threaded rod (14) is fixedly installed on the left side of the pressure plate (13). The threaded rod (14) meshes with the inner cavity of the fixed cylinder (12).
3. The gear box gear production and processing clamp according to claim 1, characterized in that: A base plate (15) is provided below the rotating seat (1). A support frame (16) is fixedly installed on the upper part of the base plate (15). The right side of the support frame (16) is movably connected to the rotating seat (1) via a shaft. A collection box (17) is fixedly installed on the upper part of the base plate (15) and directly below the clamping plate (11). A slot (18) is opened at the upper edge of the inner cavity of the collection box (17).
4. The gear box gear production and processing clamp according to claim 3, characterized in that: A fixed frame (19) fits into the slot (18), a filter screen (20) is fixedly installed in the inner cavity of the fixed frame (19), a handrail (21) is fixedly installed on the upper part of the fixed frame (19), there are four handrails (21) and they are symmetrically distributed front and back, and a liquid storage box (22) is fixedly installed on the upper part of the bottom plate (15) and behind the collection box (17).
5. The gear box gear production and processing clamp according to claim 4, characterized in that: A pump (23) is fixedly installed on the upper part of the liquid storage box (22). A spray pipe (24) is fixedly installed on the upper part of the pump (23). A nozzle (25) is fixedly installed at the end of the spray pipe (24) away from the pump (23). A cooler (26) is fixedly installed on the upper part of the base plate (15) and to the right of the collection box (17). Pipes are respectively provided between the cooler (26) and the collection box (17) and the liquid storage box (22).