A high-precision gear hobbing machine

Abstract

This utility model relates to the field of gear hobbing machine technology and discloses a high-precision gear hobbing machine, including a support platform. A housing is fixedly connected to the upper surface of the support platform, and an electric push rod is fixedly connected to the outside of the housing. A transmission assembly is provided at the output end of the electric push rod, and a support plate is fixedly connected to the outside of the transmission assembly. A rotating platform is rotatably connected to the lower surface of the support plate, and a rotating assembly is provided on the upper surface of the support plate. A base is fixedly connected to the outside of the rotating assembly. A transmission gear is connected to the output end of a first motor, and a first gear is meshed with one side of the transmission gear. In this utility model, starting the electric push rod drives the sliding block to slide via a push block, thereby causing the support plates to move closer together. Alternatively, the first motor can drive the gear plates to slide together via the meshing of the transmission gear, the first gear, the second gear, and the third gear, thereby improving the precision of gear machining.

Description

Technical Field

[0001] This utility model relates to the field of gear hobbing machine technology, and in particular to a high-precision gear hobbing machine. Background Technology

[0002] As a key piece of equipment for processing cylindrical gears, gear hobbing machines achieve tooth profile processing through the relative motion between the hobbing gear and the workpiece. They are core equipment in the gear manufacturing industry chain. With the continuous improvement of the precision requirements of high-end equipment, gear hobbing machines are widely used in automobiles, machine tools, construction machinery, wind power equipment and other fields.

[0003] Traditional workpiece clamping is achieved by fixing the upper surface of one workpiece stage with a power source close to the lower surface of the other workpiece stage. If the workpiece stage on the power source side becomes loose during processing, the gear to be processed will become loose, which will prevent the surface quality requirements of high-precision gears from being met, resulting in a decrease in the accuracy of gear processing. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-precision gear hobbing machine, which aims to improve the problem that if the workpiece table on one side of the power source becomes loose during the traditional workpiece processing, the gear to be processed will become loose, resulting in a decrease in the accuracy of gear processing.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-precision gear hobbing machine includes a support platform, a housing fixedly connected to the upper surface of the support platform, an electric push rod fixedly connected to the outside of the housing, a transmission assembly provided at the output end of the electric push rod, a support plate fixedly connected to the outside of the transmission assembly, a rotating platform rotatably connected to the lower surface of the support plate, a rotating assembly provided on the upper surface of the support plate, and a base fixedly connected to the outside of the rotating assembly.

[0007] Through the above technical solution: the electric push rod serves as a power source, which can drive the support plate through the transmission component to move the rotating table and the base to clamp the workpiece. When the two are close to each other, they can form a stable clamp on the gear to be processed. The rotating component can drive the base to rotate the workpiece, which is suitable for the indexing requirements of gear hobbing. The rotating table can be adaptively adjusted with the rotation of the workpiece, thereby improving the gear processing accuracy reduction caused by workpiece loosening.

[0008] Preferably, the transmission assembly includes a push block, the push block is externally disposed at the output end of the electric push rod, a sliding block is slidably connected to the outside of the push block, a sliding groove is provided inside the sliding block, the push block is slidably connected to the sliding block, the support plate is externally fixedly connected to the outside of the sliding block, and the sliding block is externally slidably connected to the inside of the housing.

[0009] Preferably, the transmission assembly further includes a first motor, the first motor being disposed outside the housing, the output end of the first motor being connected to a transmission gear, one side of the transmission gear being meshed with a first gear, the tooth end of the first gear being meshed with a second gear, the other side of the transmission gear being meshed with a third gear, the tooth ends of the second gear and the tooth plate being meshed with a tooth plate, and the support plate being fixedly connected to the outside of the tooth plate.

[0010] Preferably, the rotating assembly includes a second motor, the second motor is externally fixedly connected to the upper surface of the support plate, the output end of the second motor is connected to a first bevel gear, the tooth end of the first bevel gear is meshed with the second bevel gear, and the interior of the base is internally fixedly connected to the upper exterior of the second bevel gear.

[0011] Preferably, a support frame is provided on the outside of the support platform, a servo motor is fixedly connected to the outside of the support frame, the output end of the servo motor is connected to a gear hobbing body, a slug is fixedly connected to the upper surface of the support frame, a storage tank is provided on one side of the upper surface of the slug, a support is fixedly connected to the other side of the upper surface of the slug, and a telescopic component is provided inside the support.

[0012] Preferably, the telescopic component includes a spring, one end of which is disposed inside the support, a stop post is slidably connected inside the support, a fixing ring is fixedly connected to the outside of the stop post, and the other end of the spring is disposed outside the fixing ring.

[0013] Preferably, the inside of the sluice plate is provided with a sluice groove, and the outside of the baffle is attached to the inner wall of one end of the sluice groove.

[0014] Preferably, the outer part of the fixing ring is slidably connected to the inside of the support, and the outer part of the baffle is attached to the inner wall of the perforated plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the starter electric push rod drives the sliding block to slide through the push block, thereby driving the support plates to move closer to each other, and finally realizing that the base and the rotating table move closer to each other to clamp the gear to be processed. Alternatively, the first motor can be used to drive the gear plates to slide back and forth through the meshing of the transmission gear, the first gear, the second gear, and the third gear, thereby improving the accuracy of gear processing.

[0017] 2. In this utility model, the stop post drives the fixing ring to slide inside the support and compress the spring. The separation of the stop post from the inner wall of the trough allows the lubricating oil in the storage tank to flow through the trough to the cutting area, thereby adjusting the lubricating oil supply. The external force is removed so that the stop post re-seals the trough, thus achieving the effect of avoiding waste caused by excessive spillage of lubricating oil. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a high-precision gear hobbing machine proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the outer shell of a high-precision gear hobbing machine proposed in this utility model;

[0020] Figure 3 This is a partial structural diagram of the rotating table of a high-precision gear hobbing machine proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the first bevel gear of a high-precision gear hobbing machine proposed in this utility model.

[0022] Figure 5 This is a partial structural diagram of the stop column of a high-precision gear hobbing machine proposed in this utility model.

[0023] Legend:

[0024] 1. Support platform; 2. Housing; 3. Electric push rod; 4. Transmission assembly; 401. Push block; 402. Sliding block; 403. Slide groove; 404. First motor; 405. Transmission gear; 406. First gear; 407. Second gear; 408. Third gear; 409. Gear plate; 5. Support plate; 6. Rotating platform; 7. Rotating assembly; 701. Second motor; 702. First bevel gear; 703. Second bevel gear; 8. Base platform; 9. Support frame; 10. Servo motor; 11. Gear hobbing body; 12. Slotted plate; 13. Storage tank; 14. Support; 15. Slotted groove; 16. Telescopic assembly; 161. Spring; 162. Stop post; 163. Fixing ring. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1:

[0027] Reference Figures 1-3An embodiment of this utility model provides a high-precision gear hobbing machine, including a support platform 1, a housing 2 fixedly connected to the upper surface of the support platform 1, an electric push rod 3 fixedly connected to the outside of the housing 2, a transmission assembly 4 provided at the output end of the electric push rod 3, a support plate 5 fixedly connected to the outside of the transmission assembly 4, a rotating platform 6 rotatably connected to the lower surface of the support plate 5, a rotating assembly 7 provided on the upper surface of the support plate 5, and a base platform 8 fixedly connected to the outside of the rotating assembly 7.

[0028] Specifically, in this embodiment, the support platform 1 is used to support the outer shell 2, the outer shell 2 is used to fix the electric push rod 3, the electric push rod 3 is fixed to the outside of the outer shell 2 through a flange structure, the power output of the electric push rod 3 is sent to the transmission assembly 4, and the end of the transmission assembly 4 away from the electric push rod 3 is fixed to the support plate 5, so that the power output of the electric push rod 3 can drive the support plate 5 to move through the transmission assembly 4. The rotating platform 6 is used to clamp the gear to rotate freely, the base platform 8 is used to support the gear workpiece to be processed, and the rotating assembly 7 can drive the base platform 8 to rotate to meet the rotation requirements of the workpiece during the gear hobbing process.

[0029] Reference Figure 2 The transmission assembly 4 includes a push block 401, which is externally disposed at the output end of the electric push rod 3. A sliding block 402 is slidably connected to the outside of the push block 401. A sliding groove 403 is provided inside the sliding block 402. The outside of the push block 401 is slidably connected to the sliding block 402. The outside of the support plate 5 is fixedly connected to the outside of the sliding block 402. The outside of the sliding block 402 is slidably connected to the inside of the outer shell 2.

[0030] Specifically, in this embodiment, the electric push rod 3 can drive the push block 401 to move. The sliding groove 403 inside the sliding block 402 is a rectangular groove structure. The outer wall of the push block 401 is in clearance fit with the inner wall of the sliding groove 403. The push block 401 can slide along the inner wall of the sliding groove 403 to realize the sliding of the sliding block 402. When the sliding block 402 moves, it can synchronously drive the support plate 5 to move. The outer wall of the sliding block 402 is in clearance fit with the inner wall of the outer shell 2. The sliding block 402 can slide along the gap of the inner wall of the outer shell 2 to realize the sliding limit of the sliding block 402.

[0031] Example 2:

[0032] Reference Figure 3The transmission assembly 4 also includes a first motor 404, which is externally disposed on the outside of the housing 2. The output end of the first motor 404 is connected to a transmission gear 405. One side of the transmission gear 405 is meshed with a first gear 406. The tooth end of the first gear 406 is meshed with a second gear 407. The other side of the transmission gear 405 is meshed with a third gear 408. The tooth ends of the second gear 407 and the tooth plate 409 are both meshed with the tooth plate 409. The support plate 5 is fixedly connected to the outside of the tooth plate 409.

[0033] Specifically, in this embodiment, the first motor 404 engages with the inner hole of the transmission gear 405, driving the transmission gear 405 to rotate. One side of the tooth end of the transmission gear 405 meshes with the tooth end of the first gear 406, causing the first gear 406 to rotate. The other side of the tooth end meshes with the tooth end of the third gear 408, causing the third gear 408 to rotate. The tooth end of the first gear 406 away from the transmission gear 405 meshes with the tooth end of the second gear 407, causing the second gear 407 to rotate. Both the tooth ends of the second gear 407 and the third gear 408 mesh with one side of the tooth surface of the gear plate 409. The tooth end of the third gear 408 meshes with the same side of the tooth surface of the gear plate 409. The gear plate 409 has a long strip-shaped straight tooth structure. When the first motor 404 drives the transmission gear 405 to rotate, the gear plate 409 moves, which in turn drives the support plate 5 to move synchronously. This achieves the effect of quickly clamping and fixing the gear to be processed, improving the accuracy of gear processing.

[0034] Reference Figure 4 The rotating assembly 7 includes a second motor 701, which is externally fixedly connected to the upper surface of the support plate 5. The output end of the second motor 701 is connected to a first bevel gear 702, and the tooth end of the first bevel gear 702 is meshed with a second bevel gear 703. The interior of the base 8 is internally fixedly connected to the upper exterior of the second bevel gear 703.

[0035] Specifically, in this embodiment, the support plate 5 is used to support the second motor 701. The output shaft of the second motor 701 is connected to the inner hole of the first bevel gear 702, driving the first bevel gear 702 to rotate. The tooth ends of the first bevel gear 702 and the tooth ends of the second bevel gear 703 are orthogonally meshed, driving the second bevel gear 703 to rotate. The lower surface of the base 8 is fixed to the upper outer side of the second bevel gear 703. When the second bevel gear 703 is driven to rotate by the first bevel gear 702, it can synchronously drive the base 8 to rotate. The base 8 is used to support the gear workpiece to be processed, realizing the rotation for gear processing.

[0036] Example 3:

[0037] Reference Figure 1 and Figure 5A support frame 9 is provided on the outside of the support platform 1. A servo motor 10 is fixedly connected to the outside of the support frame 9. The output end of the servo motor 10 is connected to a gear hobbing body 11. A drain plate 12 is fixedly connected to the upper surface of the support frame 9. A storage tank 13 is provided on one side of the upper surface of the drain plate 12. A support 14 is fixedly connected to the other side of the upper surface of the drain plate 12. A telescopic component 16 is provided inside the support 14. The telescopic component 16 includes a spring 161. One end of the spring 161 is located inside the support 14. A stop post 162 is slidably connected inside the support 14. A fixing ring 163 is fixedly connected to the outside of the stop post 162. The other end of the spring 161 is located outside the fixing ring 163. A drain groove 15 is opened inside the drain plate 12. The outside of the stop post 162 is attached to the inner wall of one end of the drain groove 15. The outside of the fixing ring 163 is slidably connected to the inside of the support 14. The outside of the stop post 162 is attached to the inner wall of the drain plate 12.

[0038] Specifically, in this embodiment, the support frame 9 is used to fix the servo motor 10; the output shaft of the servo motor 10 is engaged with the inner hole of the input end of the hobbing body 11, and the servo motor 10 can drive the hobbing body 11 to rotate to achieve tooth cutting action. The slug plate 12 is fixed on the upper surface of the support frame 9. The slug groove 15 opened inside the slug plate 12 is a long strip through groove, which is used for the lubricating oil inside the storage tank 13 to flow back to the hobbing processing area to achieve a lubrication effect. The outer wall of the baffle 162 can slide up and down inside the support 14. The lower outer wall of the baffle 162 is in contact with the inner wall of the slug groove 15. By the up and down displacement of the baffle 162, the flow cross-sectional area of ​​the transverse flow channel can be adjusted, thereby controlling the flow rate of lubricating oil. The fixing ring 163 is fixed by welding. Outside the stop post 162, a spring 161 is sleeved on the outside of the stop post 162, sliding synchronously with the stop post 162. One end of the spring 161 contacts the inside of the support 14, and the other end contacts the outside of the fixing ring 163. The spring 161 keeps the stop post 162 in a state of blocking the leakage groove 15. When it is necessary to increase the amount of lubricating oil sprayed, the external force pushes the stop post 162 upward, compresses the spring 161, expands the cross-sectional area of ​​the transverse flow channel, and increases the oil output. After the processing is completed, the external force is removed, the spring 161 returns to its original position and pushes the stop post 162 downward, reduces the cross-sectional area of ​​the flow, and finally stops the flow of lubricating oil. This can avoid the waste of lubricating oil due to excessive spraying, and at the same time ensure that the supply of lubricating oil in the processing area is adapted to the cutting needs.

[0039] Working principle: When using this high-precision gear hobbing machine, first place the gear to be processed on the base 8, start the electric push rod 3 to drive the sliding block 402 to slide through the push block 401, and then drive the support plate 5 to move closer to each other. Finally, the base 8 and the rotating table 6 move closer to each other to clamp the gear to be processed. Alternatively, the first motor 404 can be used to drive the gear plate 409 to slide through the meshing action of the transmission gear 405, the first gear 406, the second gear 407, and the third gear 408 to move the base 8 and the rotating table 6 closer to each other to clamp the gear to be processed, thereby improving the accuracy of gear processing.

[0040] Then, the servo motor 10 is started to drive the hobbing body 11 to rotate, and at the same time, the second motor 701 is started to drive the base plate 8 and the workpiece to rotate through the first bevel gear 702 and the second bevel gear 703. The two work together to complete the tooth cutting.

[0041] During processing, the stop post 162 can be pushed up, causing the fixed ring 163 to slide inside the support 14 and compress the spring 161. The separation of the stop post 162 from the inner wall of the trough 15 allows the lubricating oil in the storage tank 13 to flow through the trough 15 to the cutting area. The upward movement distance of the stop post 162 can be adjusted according to the cutting requirements to control the flow cross-sectional area of ​​the trough 15, thereby adjusting the lubricating oil supply. After processing, the external force is removed to reseal the trough 15 with the stop post 162, thus avoiding the waste of lubricating oil due to excessive spillage.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision gear hobbing machine, comprising a support table (1), characterized in that: The upper surface of the support platform (1) is fixedly connected to the outer shell (2), and the outer shell (2) is fixedly connected to the outside of the electric push rod (3). The output end of the electric push rod (3) is provided with a transmission assembly (4). The transmission assembly (4) is fixedly connected to the outside of the support plate (5). The lower surface of the support plate (5) is rotatably connected to a rotating platform (6). The upper surface of the support plate (5) is provided with a rotating assembly (7). The rotating assembly (7) is fixedly connected to the outside of a base platform (8).

2. The high-precision gear hobbing machine according to claim 1, characterized in that: The transmission assembly (4) includes a push block (401), which is externally disposed at the output end of the electric push rod (3). A sliding block (402) is slidably connected to the outside of the push block (401). A sliding groove (403) is provided inside the sliding block (402). The outside of the push block (401) is slidably connected to the sliding block (402). The outside of the support plate (5) is fixedly connected to the outside of the sliding block (402). The outside of the sliding block (402) is slidably connected to the inside of the outer shell (2).

3. A high-precision gear hobbing machine according to claim 2, characterized in that: The transmission assembly (4) further includes a first motor (404), the first motor (404) is disposed outside the housing (2), the output end of the first motor (404) is connected to a transmission gear (405), one side of the transmission gear (405) is meshed with a first gear (406), the tooth end of the first gear (406) is meshed with a second gear (407), the other side of the transmission gear (405) is meshed with a third gear (408), the tooth ends of the second gear (407) and the tooth plate (409) are both meshed with the tooth plate (409), and the support plate (5) is fixedly connected to the outside of the tooth plate (409).

4. A high-precision gear hobbing machine according to claim 1, characterized in that: The rotating assembly (7) includes a second motor (701), which is externally fixedly connected to the upper surface of the support plate (5). The output end of the second motor (701) is connected to a first bevel gear (702), and the tooth end of the first bevel gear (702) is meshed with a second bevel gear (703). The interior of the base (8) is fixedly connected to the upper exterior of the second bevel gear (703).

5. A high-precision gear hobbing machine according to claim 1, characterized in that: A support frame (9) is provided on the outside of the support platform (1). A servo motor (10) is fixedly connected to the outside of the support frame (9). A gear hobbing body (11) is connected to the output end of the servo motor (10). A drain plate (12) is fixedly connected to the upper surface of the support frame (9). A storage tank (13) is provided on one side of the upper surface of the drain plate (12). A support (14) is fixedly connected to the other side of the upper surface of the drain plate (12). A telescopic component (16) is provided inside the support (14).

6. A high-precision gear hobbing machine according to claim 5, characterized in that: The telescopic assembly (16) includes a spring (161), one end of which is disposed inside the support (14). A stop post (162) is slidably connected inside the support (14), and a fixing ring (163) is fixedly connected outside the stop post (162). The other end of the spring (161) is disposed outside the fixing ring (163).

7. A high-precision gear hobbing machine according to claim 6, characterized in that: The inside of the sluice plate (12) is provided with a sluice groove (15), and the outside of the baffle (162) is attached to the inner wall of one end of the sluice groove (15).

8. A high-precision gear hobbing machine according to claim 6, characterized in that: The outer side of the fixing ring (163) is slidably connected to the inside of the support (14), and the outer side of the baffle (162) is attached to the inner wall of the sprue plate (12).

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