Clamp for press fitting of balance gear
By designing and installing a balanced gear fixture, the problems of low efficiency and workpiece damage of press-mounted gear bearing fixtures in multiple processes are solved, and efficient processing and workpiece protection are achieved.
Patent Information
- Application Number
- CN202422317334.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The existing multi-process pressing of gear bearing clamps requires a lot of labor, low processing efficiency, and the load directly acts on the workpiece may cause damage.
A press-mounted balance gear clamp is designed to achieve stable fixation of the crankshaft assembly through positioning devices and actuators. The helical gear sleeve and bearing sleeve are used to prevent the load from acting directly on the workpiece, and the slotted arc plate can be adjusted to adapt to different models of crankshafts.
提高了加工效率,减少了劳动力需求,保护了工件不受载荷直接损坏,适应不同型号曲轴的快速更换。
Smart Images

Figure CN223071263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixtures, and more specifically, to a fixture for press-fitting a balance gear. Background Art
[0002] With the increase in the production batch of parts and the diversity of part varieties, the original fixture for separately press-fitting gear bearings in multiple processes requires a lot of labor and has a slow processing efficiency, which can no longer meet the production needs. Moreover, the load generated during processing directly acts on the workpiece, which may cause damage to the workpiece. Summary of the Utility Model
[0003] The main purpose of the utility model is to provide a fixture for press-fitting a balance gear, which can effectively solve the problems in the background art that the original fixture for separately press-fitting gear bearings in multiple processes requires a lot of labor, has a slow processing efficiency, can no longer meet the production needs, and the load generated during processing directly acts on the workpiece, which may cause damage to the workpiece.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a fixture for press-fitting a balance gear, including a workbench, a fixed support plate is fixedly installed on the upper surface of the workbench, a clamping plate is fixedly installed on the upper surface of the fixed support plate, a groove arc plate is arranged on the upper surface of the clamping plate, a crankshaft assembly is arranged inside the groove arc plate, a positioning device for positioning the crankshaft assembly inside the groove arc plate is arranged on the upper surface of the clamping plate, a bearing is installed inside the crankshaft assembly, a shaft helical gear is sleeved inside the crankshaft assembly, a bearing sleeve is sleeved outside the bearing, and a shaft helical gear sleeve is sleeved and installed outside the shaft helical gear.
[0005] Preferably, an adjusting bolt is installed on the groove arc plate, and the groove arc plate is rotatably installed on the upper surface of the clamping plate through the adjusting bolt.
[0006] Preferably, bolt holes are formed on both sides of the lower surface of the fixed support plate.
[0007] Preferably, the positioning device includes a positioning plate, and the positioning plate is fixedly installed on the upper surface of the workbench.
[0008] Preferably, a lead screw nut is installed in the middle of the positioning plate.
[0009] Preferably, a lead screw is sleeved and installed in the middle of the lead screw nut.
[0010] Preferably, a turntable is fixedly installed at one end of the lead screw, and a pressing head is rotatably installed at the other end of the lead screw.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] (1) Place the crankshaft assembly inside the assembled slot arc plate. At this time, the staff rotates the lead screw, causing the lead screw to cooperate with the lead screw nut sleeve to move forward, and at the same time, it can drive the pressure head to move forward, pressing the pressure head on the surface of the crankshaft assembly to fix the crankshaft assembly inside the slot arc plate. At this time, the bearing is sleeved into the crankshaft assembly, and the bearing sleeve is put over the bearing. Then start the actuator to do work downward to generate a load. At this time, the shaft bevel gear is sleeved into the crankshaft assembly, and prepare to put the shaft bevel gear sleeve over the shaft bevel gear. Start the actuator to do work downward to generate a load, and take out the finished parts of the shaft bevel gear and bearing embedded in the crankshaft assembly through the load, completing this embedding process. By applying a downward load, the bearing and gear are inlaid into the crankshaft assembly. Among them, the shaft bevel gear sleeve and the bearing sleeve are to prevent the load from directly acting on the workpiece of the crankshaft assembly. When replacing crankshafts of different models, only need to swing the slot arc plate left and right for adjustment. Its advantages are convenience and speed, laying the foundation for the smooth production of new products. Description of the Drawings
[0013] Figure 1 is a structural schematic diagram of a press-fitting balance gear fixture of the present utility model;
[0014] Figure 2 is a structural schematic diagram of the positioning plate of a press-fitting balance gear fixture of the present utility model;
[0015] Figure 3 is an enlarged structural schematic diagram at position A of a press-fitting balance gear fixture of the present utility model.
[0016] In the figure: 1, fixed support plate; 2, clamping plate; 3, slot arc plate; 4, positioning device; 401, positioning plate; 402, lead screw nut sleeve; 403, lead screw; 404, turntable; 405, pressure head; 5, bearing sleeve; 6, shaft bevel gear sleeve; 7, crankshaft assembly; 8, bearing; 9, shaft bevel gear; 10, workbench; 11, bolt hole; 12, adjusting bolt. Detailed Embodiment
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0018] As Figure 1As shown in the figure, a press-fitting balance gear fixture includes a workbench 10. On the upper surface of the workbench 10, a fixed support plate 1 is fixedly installed. On the upper surface of the fixed support plate 1, a clamping plate 2 is fixedly installed. On the upper surface of the clamping plate 2, a groove arc plate 3 is provided. Inside the groove arc plate 3, a crankshaft assembly 7 is arranged. On the upper surface of the clamping plate 2, a positioning device 4 is provided to position the crankshaft assembly 7 inside the groove arc plate 3. Inside the crankshaft assembly 7, a bearing 8 is installed. Inside the crankshaft assembly 7, a shaft helical gear 9 is sleeved. Outside the bearing 8, a bearing sleeve 5 is sleeved. Outside the shaft helical gear 9, a shaft helical gear sleeve 6 is sleeved and installed.
[0019] As Figure 1 shown, an adjusting bolt 12 is installed on the groove arc plate 3. The groove arc plate 3 is rotationally installed on the upper surface of the clamping plate 2 through the adjusting bolt 12. When replacing crankshafts of different models, only the left and right adjustment of the groove arc plate 3 is required, and its advantages are convenience and speed, laying the foundation for the smooth production of new products.
[0020] As Figure 1 shown, bolt holes 11 are provided on both sides of the lower surface of the fixed support plate 1, which can facilitate the installation of the fixed support plate 1 in a suitable position.
[0021] As Figure 1 、 2 shown, the positioning device 4 includes a positioning plate 401. The positioning plate 401 is fixedly installed on the upper surface of the workbench 10. In the middle of the positioning plate 401, a lead screw nut 402 is installed. Inside the lead screw nut 402, a lead screw 403 is sleeved. One end of the lead screw 403 is fixedly installed with a turntable 404. The other end of the lead screw 403 is rotationally installed with a pressing head 405. The crankshaft assembly 7 is placed inside the assembled groove arc plate 3. At this time, by the operator rotating the lead screw 403, the lead screw 403 cooperates with the lead screw nut 402 to move forward, and at the same time, it can drive the pressing head 405 to move forward, so that the pressing head 405 presses on the surface of the crankshaft assembly 7, fixing the crankshaft assembly 7 inside the groove arc plate 3. At this time, the bearing 8 is sleeved into the crankshaft assembly 7, and the bearing sleeve 5 is put over the bearing 8. At this time, the actuator is started to do work downward to generate a load. At this time, the shaft helical gear 9 is sleeved into the crankshaft assembly 7, and the shaft helical gear sleeve 6 is prepared to be put over the shaft helical gear 9. The actuator is started to do work downward to generate a load. Through the load, the finished parts of the shaft helical gear 9 and the bearing 8 of the crankshaft assembly 7 are taken out, completing this embedding process. Through the downward pressure load, the bearing and the gear are embedded into the crankshaft assembly 7.
[0022] The working principle of this press-fitting balance gear fixture:
[0023] During use, place the crankshaft assembly 7 inside the assembled groove arc plate 3. At this time, rotate the lead screw 403 by the operator, so that the lead screw 403 cooperates with the lead screw nut 402 to move forward, and at the same time, it can drive the pressure head 405 to move forward, so that the pressure head 405 presses on the surface of the crankshaft assembly 7, fixing the crankshaft assembly 7 inside the groove arc plate 3. At this time, sleeve the bearing 8 into the crankshaft assembly 7, cover the bearing sleeve 5 over the bearing 8. Then start the actuator to do work downward to generate a load. At this time, sleeve the shaft bevel gear 9 onto the crankshaft assembly 7, and prepare to cover the shaft bevel gear sleeve 6 over the shaft bevel gear 9. Start the actuator to do work downward to generate a load, and remove the finished parts of the shaft bevel gear 9 and the bearing 8 of the crankshaft assembly 7 through the load embedding, completing this embedding process. By applying a downward load, the bearing and the gear are embedded into the crankshaft assembly 7. The shaft bevel gear sleeve 6 and the bearing sleeve 5 are used to prevent the load from directly acting on the workpiece of the crankshaft assembly 7. When replacing crankshafts of different models, only need to adjust the groove arc plate 3 left and right. Its advantages are convenience and speed, laying a foundation for the smooth production of new products.
[0024] The above embodiments of the present utility are merely examples for clearly illustrating the present utility, rather than limitations on the implementation manners of the present utility. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present utility are still within the protection scope of the present utility.
Claims
1. A press-fitting balance gear fixture, comprising a workbench (10), characterized in that: On the upper surface of the workbench (10), a fixed support plate (1) is fixedly installed. On the upper surface of the fixed support plate (1), a clamping plate (2) is fixedly installed. On both sides of the upper surface of the clamping plate (2), clamping groove arc plates (3) are provided. Inside the clamping groove arc plates (3), a crankshaft assembly (7) is provided. On the upper surface of the clamping plate (2), a positioning device (4) for positioning the crankshaft assembly (7) inside the clamping groove arc plates (3) is provided. Inside the crankshaft assembly (7), a bearing (8) is installed. Inside the crankshaft assembly (7), a shaft helical gear (9) is sleeved and installed. Outside the bearing (8), a bearing sleeve (5) is sleeved. Outside the shaft helical gear (9), a shaft helical gear sleeve (6) is sleeved and installed.
2. The press-fitting balance gear fixture according to claim 1, wherein: An adjusting bolt (12) is installed on the clamping groove arc plate (3). The clamping groove arc plate (3) is rotatably installed on the upper surface of the clamping plate (2) through the adjusting bolt (12).
3. A press-fitting balance gear fixture according to claim 1, characterized in that: On both sides of the lower surface of the fixed support plate (1), bolt holes (11) are provided.
4. A press-fitting balance gear fixture according to claim 1, characterized in that: The positioning device (4) includes a positioning plate (401), and the positioning plate (401) is fixedly installed on the upper surface of the workbench (10).
5. The fixture for press-fitting a balance gear according to claim 4, wherein: In the middle of the positioning plate (401), a lead screw nut (402) is installed.
6. The press-fitting balance gear fixture according to claim 5, characterized in that: In the middle of the lead screw nut (402), a lead screw (403) is sleeved and installed.
7. The press-fitting balance gear fixture according to claim 6, wherein: One end of the lead screw (403) is fixedly installed with a turntable (404), and the other end of the lead screw (403) is rotatably installed with a pressing head (405).