Hypoid bevel gear machining and positioning device
The combination of the drive mechanism and the cleaning device solves the problem of inconvenient debris cleaning during bevel gear processing, achieves stable positioning and efficient cleaning of the bevel gear, extends the service life of the device components, and improves processing accuracy and efficiency.
Patent Information
- Application Number
- CN202423073724.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-12
AI Technical Summary
During the bevel gear processing, metal debris easily falls into the moving groove of the positioning device, making cleaning inconvenient and affecting the movement of the positioning block, thereby reducing the processing accuracy.
A driving mechanism is used to drive the two positioning rods to move inside the bevel gear. The limit groove is covered by a cover plate. The ball and annular cleaning piece are combined to prevent debris from entering. The roller reduces resistance. The oil-absorbing cotton and lubrication system extend the life of the components. The rubber pad provides elastic protection.
It achieves stable positioning of the bevel gear, prevents debris from entering the limit groove, reduces movement resistance and wear, facilitates cleaning, extends the life of device components, and improves processing accuracy and efficiency.
Smart Images
Figure CN223476497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bevel gear processing equipment, and in particular to a positioning device for processing quasi-hyperboloid bevel gears. Background Art
[0002] A hypoid bevel gear is a non-cylindrical bevel gear with an offset axis, often referred to as a "hyperbolic gear" or "quasi-hyperbolic gear." The axis angle of a hypoid bevel gear is 90°, allowing for torque direction changes of 90°, which is commonly used for angle conversion in the automotive, aerospace, and wind power industries. During machining processes such as cutting and grinding, hypoid bevel gears require positioning devices to prevent movement and maintain machining accuracy.
[0003] Patent CN217618198U discloses "a positioning device for bevel gear machining, including a worktable, a turntable at the top center of the worktable, a sleeve at the top center of the turntable, a threaded rod threaded onto the sleeve, a moving block sleeved on the threaded rod, and positioning blocks on all four sides of the top of the turntable. This invention enables the positioning of bevel gears with different inner diameters, facilitates the machining of the sidewalls of the bevel gears, simplifies the positioning process, improves work efficiency, and ensures the machining accuracy of the gears."
[0004] Regarding the aforementioned technologies, the inventors believe that during the cutting and grinding processes of bevel gears, the metal shavings generated are prone to falling into the moving groove of the device. The shavings falling into the moving groove are not only inconvenient for subsequent cleaning, but also hinder the movement of the protrusions and positioning blocks, affecting the positioning of the bevel gear. Therefore, improvements are needed. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing a quasi-hyperboloid bevel gear machining positioning device, the specific technical solution of which is as follows:
[0006] A positioning device for machining a quasi-hyperboloid bevel gear includes a positioning table, two positioning rods installed inside the positioning table, and a driving mechanism installed inside the positioning table for driving the two positioning rods to move inside the quasi-hyperboloid bevel gear to press against the inner wall of the bevel gear. The top of the positioning table has two limiting grooves for the positioning rods to pass through and limit their movement. The outer wall of the top of the positioning rods is fixed with a cover plate for covering the bottom limiting grooves and supporting the bevel gear. The bottom ends of the cover plate are fixed with two sets of spheres that abut against the top surface of the positioning table. The bottom edge of the cover plate is fixed with an annular cleaning component for cleaning the top of the positioning table and pushing away debris when the cover plate moves.
[0007] By adopting the above technical solution, the two positioning rods are moved by the drive mechanism, so that after the two positioning rods move away from each other inside the bevel gear, they can press against the inner wall of the bevel gear, thereby aligning and fixing the hyperboloid bevel gear. The cover plate will always cover the limiting groove during the movement of the positioning rods to prevent debris from falling into the limiting groove and making it inconvenient to clean. The ball can reduce the resistance and wear when the positioning rods move by rotating itself. The annular cleaning component will clean the top of the positioning platform and push and gather the debris when the positioning rods move, which is convenient for subsequent cleaning.
[0008] Optionally, the driving mechanism includes a bidirectional lead screw rotatably disposed within the positioning platform and a rocker arm fixedly disposed at one end of the bidirectional lead screw and located outside the positioning platform. The two positioning rods are respectively threaded to both ends of the bidirectional lead screw. Two bearings are fixedly connected to both sides of the inner wall of the positioning platform, and the two ends of the bidirectional lead screw are respectively rotatably connected to the two bearings.
[0009] By adopting the above technical solution, the operator can drive the bidirectional lead screw to rotate by shaking the crank. Since the threads at both ends of the bidirectional lead screw are opposite, and with the limiting groove, the two positioning rods can move away from each other inside the bevel gear and press against the inner wall of the bevel gear, thereby positioning and fixing the hyperboloid bevel gear.
[0010] Optionally, the bottom end of the positioning rod is rotatably provided with a roller that abuts against the bottom of the inner wall of the positioning platform, and a maintenance door is rotatably provided on one side of the positioning platform.
[0011] By adopting the above technical solution, the roller can reduce the resistance and wear when the positioning rod moves by its own rolling, thereby extending the service life of the positioning rod and other components.
[0012] Optionally, an annular groove is provided on one side of the positioning rod, and an oil-absorbing cotton is fixedly provided in the annular groove of the positioning rod. The outer wall of the bidirectional screw abuts against the inner wall of the oil-absorbing cotton. An oil filling hopper is fixedly provided on one side of the positioning rod, and a conduit for sending lubricating oil from the oil filling hopper into the oil-absorbing cotton is fixedly provided inside the positioning rod. An oil collecting hopper for collecting excess lubricating oil flowing out of the oil-absorbing cotton is fixedly provided at the bottom of one side of the positioning rod.
[0013] By adopting the above technical solution, when the bidirectional lead screw rotates, it will squeeze the oil-absorbing cotton, causing some lubricating oil to flow out from the oil-absorbing cotton and flow into the connection between the positioning rod and the bidirectional lead screw as the positioning rod moves, so as to continuously lubricate the connection between the positioning rod and the bidirectional lead screw, reduce the resistance and wear when the positioning rod and the bidirectional lead screw rotate, and extend the service life of the positioning rod and the bidirectional lead screw.
[0014] Optionally, a rubber pad is fixed on one side of the top of the positioning rod to provide elastic protection for the bevel gear pressed by the positioning rod, and two sets of sleeve holes are opened at the bottom of both ends of the cover plate, and the ball is rotatably connected in the sleeve holes of the cover plate.
[0015] By adopting the above technical solution, the rubber pad can provide elastic protection for the bevel gear when the positioning rod presses against the inner wall of the bevel gear, so that the inner wall of the bevel gear will not be damaged or scratched by the positioning rod during the positioning process due to hard contact.
[0016] In summary, this utility model has at least one of the following beneficial effects:
[0017] 1. The two positioning rods are moved by the drive mechanism, so that they move away from each other inside the bevel gear and press against the inner wall of the bevel gear, thereby aligning and fixing the hyperboloid bevel gear. The cover plate will always cover the limiting groove during the movement of the positioning rods to prevent debris from falling into the limiting groove and making it inconvenient to clean. The ball can reduce the resistance and wear of the positioning rods during their movement by rotating itself. The annular cleaning component will clean the top of the positioning platform and push and gather the debris when the positioning rods move, making it convenient for subsequent cleaning.
[0018] 2. By cranking the handle, in conjunction with the double-acting lead screw and other components, two positioning rods can be moved closer or further apart. After moving, the two positioning rods can position the bevel gear. The positioning process can be completed simply by cranking the handle, which is convenient and quick. The rolling of the rollers, the rotation of the bearings, and the continuous lubrication of the connection between the double-acting lead screw and the positioning rods by the oil-absorbing cotton reduce the resistance when cranking the handle, making operation convenient. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a front sectional view of the overall structure of this utility model;
[0021] Figure 3 This is the utility model Figure 1 Enlarged structural view of the center positioning rod and cover plate;
[0022] Figure 4 This is the utility model Figure 2 Enlarged view of the A-structure in the middle;
[0023] Figure 5 This is the utility model Figure 2 Enlarged view of the B structure.
[0024] Explanation of reference numerals in the attached drawings: 1. Positioning platform; 11. Limiting groove; 12. Bearing; 2. Positioning rod; 21. Rubber pad; 22. Roller; 23. Annular groove; 24. Oil-absorbing cotton; 25. Oil filling hopper; 26. Guide tube; 27. Oil collecting hopper; 3. Two-way lead screw; 31. Crank handle; 4. Cover plate; 41. Sleeve hole; 42. Ball; 43. Annular cleaning component. DETAILED DESCRIPTION
[0025] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.
[0026] This utility model discloses a positioning device for machining quasi-hyperboloid bevel gears, referring to... Figure 1-3 It includes a positioning platform 1, two positioning rods 2 and a drive mechanism. The positioning platform 1 is hollow inside, and a maintenance door is provided on one side of the positioning platform 1 so that staff can open the maintenance door to inspect and maintain the internal components of the positioning platform 1.
[0027] Reference Figure 1-3 Two positioning rods 2 are installed inside the positioning table 1, and a drive mechanism is installed inside the positioning table 1. The drive mechanism can drive the two positioning rods 2 to move inside the quasi-hyperboloid bevel gear to press against the inner wall of the bevel gear. During use, the operator can place the quasi-hyperboloid bevel gear on the top of the positioning table 1 and make the two positioning rods 2 located in the inner hole of the quasi-hyperboloid bevel gear. The drive mechanism drives the two positioning rods 2 to move away from each other, so that the two positioning rods 2 can respectively abut against the two sides of the inner wall of the bevel gear, thereby positioning and fixing the bevel gear, making it difficult for the bevel gear to move during the processing. Since the positioning rods 2 can move, the device can position quasi-hyperboloid bevel gears of different diameters.
[0028] Reference Figure 1-2 The top of the positioning platform 1 is provided with two limiting grooves 11 for the positioning rod 2 to pass through and limit the positioning rod 2. The limiting grooves 11 can limit the matching positioning rod 2, so that the positioning rod 2 can only move laterally within the limiting grooves 11 and cannot rotate.
[0029] Reference Figure 2-4The top outer wall of the positioning rod 2 is fixed with a cover plate 4 for covering the bottom limiting groove 11 and supporting the bevel gear. Two sets of balls 42 are fixed at the bottom of both ends of the cover plate 4 and abut against the top surface of the positioning platform 1. An annular cleaning component 43 is fixed at the bottom edge of the cover plate 4 for cleaning the top of the positioning platform 1 and pushing the debris on the top of the positioning platform 1 when the cover plate 4 moves. Two sets of sleeve holes 41 are opened at the bottom of both ends of the cover plate 4. The balls 42 are rotatably connected in the sleeve holes 41 of the cover plate 4. The cover plate 4 can connect and limit the balls 42 through the sleeve holes 41. The connection method between the cover plate 4 and the balls 42 is the same as the connection method of the existing ball joint rotating mechanism, so that the balls 42 can rotate at the bottom of the cover plate 4 without detaching. The annular cleaning component 43 can be an annular sponge or other object with cleaning effect and able to push metal debris.
[0030] When the positioning rod 2 moves, the cover plate 4, the ball 42, and the annular cleaning component 43 also move accordingly. The cover plate 4 will always cover the limiting groove 11 during the movement of the positioning rod 2 to prevent debris from falling into the limiting groove 11 and making it inconvenient to clean. The ball 42 can reduce the resistance and wear of the positioning rod 2 during its own rotation. The annular cleaning component 43 will clean the top of the positioning platform 1 and push some of the debris on the top of the positioning platform 1 to gather together when the positioning rod 2 moves, making it convenient for the staff to clean up the gathered debris later.
[0031] Reference Figure 1-3 The driving mechanism includes a bidirectional lead screw 3 rotatably mounted inside the positioning platform 1 and a crank handle 31 fixed at one end of the bidirectional lead screw 3 and located outside the positioning platform 1. Two positioning rods 2 are threadedly connected to the two ends of the bidirectional lead screw 3. The operator can rotate the bidirectional lead screw 3 by cranking the crank handle 31. Since the threads at both ends of the bidirectional lead screw 3 are in opposite directions, in conjunction with the limiting groove 11, the two positioning rods 2 can move away from each other inside the bevel gear and press against the inner wall of the bevel gear, thereby positioning and fixing the hyperboloid bevel gear.
[0032] Reference Figure 1-2 Two bearings 12 are fixedly connected to both sides of the inner wall of the positioning table 1. The two ends of the bidirectional lead screw 3 are rotatably connected to the two bearings 12 respectively. The bearing 12 consists of an inner ring and an outer ring, which rotate relative to each other. The outer ring of the bearing 12 is fixedly connected to the inner wall of the positioning table 1, while the bidirectional lead screw 3 is fixedly connected to the inner ring of the bearing 12, so that the bidirectional lead screw 3 and the bearing 12 rotate relative to each other. Through the rotation of the bearing 12, the resistance and wear of the bidirectional lead screw 3 during rotation can be reduced.
[0033] Reference Figure 2 The bottom end of the positioning rod 2 is provided with a roller 22 that fits against the bottom of the inner wall of the positioning platform 1. The roller 22 can reduce the resistance and wear of the positioning rod 2 when it moves by rolling itself, thereby extending the service life of the positioning rod 2 and other components.
[0034] Reference Figure 2 and Figure 5 The positioning rod 2 has an annular groove 23 on one side, and an oil-absorbing cotton 24 is fixedly installed in the annular groove 23 of the positioning rod 2. The outer wall of the bidirectional screw 3 abuts against the inner wall of the oil-absorbing cotton 24. An oil filling hopper 25 is fixedly installed on one side of the positioning rod 2. A conduit 26 for sending the lubricating oil in the oil filling hopper 25 into the oil-absorbing cotton 24 is fixedly installed inside the positioning rod 2. An oil collecting hopper 27 for collecting excess lubricating oil flowing out of the oil-absorbing cotton 24 is fixedly installed at the bottom of one side of the positioning rod 2.
[0035] Workers can add lubricating oil to the oil filling hopper 25. The lubricating oil in the oil filling hopper 25 can flow into the oil-absorbing cotton 24 along the guide tube 26. The oil-absorbing cotton 24 will continuously absorb the lubricating oil. When the double-acting screw 3 rotates, it will squeeze the oil-absorbing cotton 24, causing some lubricating oil to flow out from the oil-absorbing cotton 24 and flow into the connection between the positioning rod 2 and the double-acting screw 3 as the positioning rod 2 moves, so as to continuously lubricate the connection between the positioning rod 2 and the double-acting screw 3, reduce the resistance and wear when the positioning rod 2 and the double-acting screw 3 rotate, and extend the service life of the positioning rod 2 and the double-acting screw 3. Moreover, the lubricating oil flowing down after the oil-absorbing cotton 24 is saturated will enter the oil collection hopper 27, preventing the lubricating oil from flowing into the bottom of the inner wall of the positioning table 1 and contaminating the components at the bottom of the positioning table 1.
[0036] Reference Figure 1-3 A rubber pad 21 is fixed on one side of the top of the positioning rod 2 to provide elastic protection for the bevel gear pressed by the positioning rod 2. The rubber pad 21 can provide elastic protection for the bevel gear when the positioning rod 2 presses against the inner wall of the bevel gear, so that the inner wall of the bevel gear will not be crushed or scratched by the positioning rod 2 during the positioning process due to hard contact.
[0037] The implementation principle of the quasi-hyperboloid bevel gear machining positioning device according to this utility model embodiment is as follows:
[0038] In use, the operator can place the quasi-hyperboloid bevel gear on top of the two cover plates 4 and make the two positioning rods 2 located in the inner hole of the quasi-hyperboloid bevel gear. Then the operator can drive the bidirectional lead screw 3 to rotate by shaking the crank 31. Since the threads at both ends of the bidirectional lead screw 3 are opposite, in conjunction with the limiting groove 11, the two positioning rods 2 can be driven to move laterally closer or further away from each other.
[0039] When the two positioning rods 2 move away from each other, they can abut against the inner sidewalls of the bevel gear respectively, thereby positioning and fixing the bevel gear, making it difficult for the bevel gear to move during processing. Furthermore, since the positioning rods 2 can move, the device can position quasi-hyperboloid bevel gears of different diameters.
[0040] When the positioning rod 2 moves, the cover plate 4, the ball 42, and the annular cleaning component 43 also move accordingly. The cover plate 4 will always cover the limiting groove 11 during the movement of the positioning rod 2 to prevent debris from falling into the limiting groove 11 and making it inconvenient to clean. The ball 42 can reduce the resistance and wear of the positioning rod 2 during its own rotation. The annular cleaning component 43 will clean the top of the positioning platform 1 and push some of the debris on the top of the positioning platform 1 to gather together when the positioning rod 2 moves, making it convenient for the staff to clean up the gathered debris later.
[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A positioning device for machining a quasi-hyperboloid bevel gear, comprising a positioning table (1), two positioning rods (2) installed within the positioning table (1), and a driving mechanism installed within the positioning table (1) for driving the two positioning rods (2) to move within the quasi-hyperboloid bevel gear to press against the inner wall of the bevel gear, characterized in that: The top of the positioning platform (1) is provided with two limiting grooves (11) for the positioning rod (2) to pass through and limit the positioning rod (2). The outer wall of the top of the positioning rod (2) is fixedly provided with a cover plate (4) for covering the bottom limiting groove (11) and supporting the bevel gear. The bottom of both ends of the cover plate (4) is fixedly provided with two sets of spheres (42) that fit against the top surface of the positioning platform (1). The bottom edge of the cover plate (4) is fixedly provided with an annular cleaning component (43) for cleaning the top of the positioning platform (1) and pushing the debris on the top of the positioning platform (1) when the cover plate (4) moves.
2. The quasi-hyperboloid bevel gear machining positioning device according to claim 1, characterized in that: The driving mechanism includes a bidirectional lead screw (3) that is rotatably disposed in the positioning table (1) and a rocker arm (31) that is fixedly disposed at one end of the bidirectional lead screw (3) and located outside the positioning table (1). The two positioning rods (2) are respectively threaded to both ends of the bidirectional lead screw (3).
3. The quasi-hyperboloid bevel gear machining positioning device according to claim 2, characterized in that: The positioning platform (1) has two bearings (12) fixedly connected to both sides of its inner wall, and the two ends of the bidirectional lead screw (3) are respectively rotatably connected to the two bearings (12).
4. The positioning device for machining quasi-hyperboloid bevel gears according to claim 1, characterized in that: The bottom end of the positioning rod (2) is provided with a roller (22) that fits against the bottom of the inner wall of the positioning platform (1), and a maintenance door is provided on one side of the positioning platform (1).
5. The quasi-hyperboloid bevel gear machining positioning device according to claim 2, characterized in that: The positioning rod (2) has an annular groove (23) on one side, and an oil-absorbing cotton (24) is fixedly installed in the annular groove (23) of the positioning rod (2). The outer wall of the bidirectional screw (3) and the inner wall of the oil-absorbing cotton (24) are engaged and abutted.
6. The quasi-hyperboloid bevel gear machining positioning device according to claim 5, characterized in that: An oil filling hopper (25) is fixedly provided on one side of the positioning rod (2), and a conduit (26) for sending the lubricating oil in the oil filling hopper (25) into the oil-absorbing cotton (24) is fixedly provided inside the positioning rod (2). An oil collecting hopper (27) for collecting excess lubricating oil flowing out of the oil-absorbing cotton (24) is fixedly provided at the bottom of one side of the positioning rod (2).
7. The positioning device for machining quasi-hyperboloid bevel gears according to claim 1, characterized in that: A rubber pad (21) is fixed on one side of the top of the positioning rod (2) to provide elastic protection for the bevel gear pressed by the positioning rod (2).
8. The positioning device for machining quasi-hyperboloid bevel gears according to claim 1, characterized in that: The cover plate (4) has two sets of sleeve holes (41) at the bottom of both ends, and the ball (42) is rotatably connected in the sleeve holes (41) of the cover plate (4).