Chamfering tool for disc chamfering machine to machine shaft external threads
By designing a chamfering fixture for disc chamfering machines and utilizing the cooperation of a sliding sleeve and a threaded rod, the fixation and position adjustment of shaft workpieces are achieved, thus solving the problem that conventional chamfering machines cannot process shaft workpieces and expanding the processing range.
Patent Information
- Application Number
- CN202422819209.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The cutter head of a conventional gear chamfering machine cannot move left or right, making it impossible to process shaft workpieces, especially when the shaft shank is too long to fit the machining position.
A chamfering tooling was designed, which included a fixed sleeve, a sliding sleeve, a positioning ring, an elastic clamp, a threaded rod, a bevel gear and a worm. The fixing and position adjustment of the shaft workpiece were achieved through the cooperation of the sliding sleeve and the threaded rod, and the threaded rod moving seat was driven to adjust its position by the engagement of the worm, worm wheel and bevel gear.
It realizes the effective fixation and position adjustment of shaft workpieces of different lengths, expands the processing range of the chamfering machine, and solves the problem that shaft workpieces cannot be processed.
Smart Images
Figure CN223476492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool tooling technology, specifically a chamfering tooling for machining external threads on shafts using a disc chamfering machine. Background Technology
[0002] A gear chamfering machine is a specialized piece of equipment used for chamfering the ends of gear teeth. Its working principle includes two types: mechanical transmission and CNC. The former uses a motor to drive a transmission mechanism that rotates the cutting tool and gear fixture to achieve cutting, while the latter uses a computer numerical control system to control the tool path.
[0003] Conventional gear chamfering machines cannot move their cutter heads left or right, and can only process disc-shaped workpieces in a fixed position. Shaft-shaped workpieces, due to their long shaft shank length, will have their processing position extend outwards when mounted on the chamfering machine fixture, exceeding the processing position of the chamfering machine cutter head. Since the chamfering machine cutter head cannot move left or right, it is impossible to process shaft-shaped workpieces. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a chamfering fixture for machining external threads on shafts using a disc chamfering machine. It has the advantages of being able to fix shaft workpieces and can be used for shaft workpieces of different lengths, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a chamfering fixture for machining external threads on shafts using a disc chamfering machine, comprising a fixed sleeve, a sliding sleeve slidably connected to the outer wall of the fixed sleeve, a shaft-shaped workpiece movably sleeved on the inner wall of the sliding sleeve, a positioning ring fixedly installed on the side of the sliding sleeve away from the fixed sleeve, a connecting column fixedly installed on the side of the fixed sleeve away from the sliding sleeve, an elastic clamping block fixedly installed on the side of the fixed sleeve away from the positioning ring, a threaded rod rotatably connected to the inner wall of the fixed sleeve, a movable seat slidably connected to the inner wall of the fixed sleeve, a bevel gear one, a bevel gear two, and a worm gear rotatably connected to the inner wall of the fixed sleeve, a worm wheel fixedly installed on the outer wall of the bevel gear two, an anti-rotation block fixedly installed at the bottom of the fixed sleeve, a fixing tooth fixedly installed on the inner wall of the anti-rotation block, a bolt threadedly connected to the bottom inner wall of the sliding sleeve, a lifting column rotatably connected to the top of the bolt, and an insertion tooth fixedly installed on the top of the lifting column.
[0006] As a preferred embodiment of the present invention, the inner wall of the sliding sleeve is provided with an inclined surface, and the inclination angle of the inclined surface is the same as that of the top of the elastic clamping block, and the inclined surface of the inner wall of the sliding sleeve overlaps with the top of the elastic clamping block.
[0007] As a preferred embodiment of this utility model, the outer wall of the movable seat is provided with an extension block, and a threaded rod passes through the extension block of the outer wall of the movable seat, and the threaded rod is threadedly connected to the movable seat.
[0008] As a preferred embodiment of this utility model, the first bevel gear and the second bevel gear are arranged at right angles, and the outer walls of the first bevel gear and the second bevel gear mesh with each other.
[0009] In a preferred embodiment of this invention, the worm wheel is adjacent to the worm, and the worm wheel meshes with the outer wall of the worm.
[0010] As a preferred embodiment of this utility model, the shape of the insertion tooth is adapted to the outer wall of the fixed tooth, and the insertion tooth is located at the bottom of the fixed tooth.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This chamfering fixture for processing external threads on shafts using a disc chamfering machine works by inserting the shaft-shaped workpiece into the sliding sleeve from the direction of the positioning ring, and inserting the inserted end of the shaft-shaped workpiece into the moving seat. At this time, the sliding sleeve is pulled towards the positioning ring, which causes the inclined surface of its inner wall to move, so that the inclined surface inside the sliding sleeve moves towards the highest point of the inclined surface of the elastic clamping block, thereby pressing the elastic clamping block towards the center, and thus making the elastic clamping block overlap with the outer wall of the shaft-shaped workpiece. At this time, the bolt is rotated, so that the bolt moves upward through the threaded connection with the sliding sleeve, which in turn causes the lifting column to move upward. At this time, the lifting column causes the insertion teeth to move upward, which in turn causes the insertion teeth to enter between the outer walls of the fixed teeth, fixing the fixed teeth, and thus fixing the sliding sleeve, so that the sliding sleeve will not slide on the outer wall of the fixed sleeve.
[0013] 2. This chamfering fixture for processing external threads on shafts using a disc chamfering machine rotates a worm gear, which in turn meshes with a worm wheel, causing the worm wheel to rotate. This meshes with a second bevel gear, which in turn meshes with a first bevel gear, causing the first bevel gear to rotate. This in turn causes a threaded rod to rotate. The threaded rod, through its threaded outer wall, causes a movable seat to slide on the inner wall of a fixed sleeve, thereby adjusting the position of the movable seat on the inner wall of the fixed sleeve. This allows the movable seat to be moved to different positions for shaft workpieces of different lengths. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the elastic clamping block structure of this utility model;
[0016] Figure 3This is a schematic diagram of the threaded rod structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed sleeve of this utility model;
[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0019] Figure 6 This utility model Figure 2 Enlarged structural diagram at point B;
[0020] Figure 7 This utility model Figure 4 Enlarged structural diagram at point C.
[0021] In the diagram: 1. Fixed sleeve; 2. Sliding sleeve; 3. Shaft-shaped workpiece; 4. Elastic clamping block; 5. Threaded rod; 6. Moving seat; 7. Bevel gear one; 8. Bevel gear two; 9. Worm gear; 10. Worm; 11. Fixed tooth; 12. Insertion tooth; 13. Lifting column; 14. Bolt; 15. Anti-rotation block; 16. Positioning ring; 17. Connecting column. Detailed Implementation
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Please see Figure 1 - Figure 7A chamfering fixture for machining external threads on shafts using a disc chamfering machine includes a fixed sleeve 1, a sliding sleeve 2 slidably connected to the outer wall of the fixed sleeve 1, a shaft-shaped workpiece 3 movably sleeved on the inner wall of the sliding sleeve 2, a positioning ring 16 fixedly installed on the side of the sliding sleeve 2 away from the fixed sleeve 1, a connecting post 17 fixedly installed on the side of the fixed sleeve 1 away from the sliding sleeve 2, an elastic clamping block 4 fixedly installed on the side of the fixed sleeve 1 away from the positioning ring 16, a threaded rod 5 rotatably connected to the inner wall of the fixed sleeve 1, a movable seat 6 slidably connected to the inner wall of the fixed sleeve 1, and bevel gear 7, bevel gear 8, and a worm gear 10 rotatably connected to the inner wall of the fixed sleeve 1, respectively. A worm gear 9 is fixedly installed on the outer wall. An anti-rotation block 15 is fixedly installed on the bottom of the fixed sleeve 1. A fixing tooth 11 is fixedly installed on the inner wall of the anti-rotation block 15. A bolt 14 is threadedly connected to the bottom inner wall of the sliding sleeve 2. A lifting column 13 is rotatably connected to the top of the bolt 14. An insertion tooth 12 is fixedly installed on the top of the lifting column 13. In the above structure, the sliding sleeve 2 is provided with a strip groove near the anti-rotation block 15. The size of the strip groove is adapted to the shape of the anti-rotation block 15. The anti-rotation block 15 limits the strip groove inside the sliding sleeve 2, so that the sliding sleeve 2 can only slide along the outer wall of the anti-rotation block 15, and cannot rotate on its own when the fixed sleeve 1 is not rotated.
[0024] In a preferred embodiment, the inner wall of the sliding sleeve 2 is provided with an inclined surface, and the inclination angle of the inclined surface is the same as that of the top of the elastic clamping block 4. The inclined surface of the inner wall of the sliding sleeve 2 overlaps with the top of the elastic clamping block 4. In the above structure, by pulling the sliding sleeve 2, the inclined surface of its inner wall is moved, causing the inclined surface inside the sliding sleeve 2 to move towards the highest point of the inclined surface at the top of the elastic clamping block 4, thereby pressing the elastic clamping block 4 towards the center, and thus causing the elastic clamping block 4 to overlap with the outer wall of the shaft-shaped workpiece 3.
[0025] In a preferred embodiment, the outer wall of the movable seat 6 is provided with an extension block, and the threaded rod 5 passes through the extension block of the outer wall of the movable seat 6. The threaded rod 5 and the movable seat 6 are threadedly connected. In the above structure, by rotating the threaded rod 5, the threaded rod 5 drives the thread of its outer wall to rotate. At this time, since the threaded rod 5 is threadedly connected to the extension block of the outer wall of the movable seat 6, the threaded rod 5 drives the extension block of the outer wall of the movable seat 6 to move, thereby causing the movable seat 6 to move.
[0026] In a preferred embodiment, bevel gear 7 and bevel gear 8 are arranged at right angles, and the outer walls of bevel gear 7 and bevel gear 8 mesh with each other. In the above structure, by rotating bevel gear 8, bevel gear 8 drives bevel gear 7 to rotate through meshing with bevel gear 7.
[0027] In a preferred embodiment, the worm wheel 9 is adjacent to the worm 10, and the worm wheel 9 meshes with the outer wall of the worm 10. In the above structure, by rotating the worm 10, the worm 10 drives the worm wheel 9 to rotate through the meshing of the outer wall of the worm 10 and the worm wheel 9.
[0028] In a preferred embodiment, the shape of the insertion tooth 12 is adapted to the outer wall of the fixed tooth 11, and the insertion tooth 12 is located at the bottom of the fixed tooth 11. In the above structure, by rotating the bolt 14, the bolt 14 is driven to move upward through the threaded connection with the sliding sleeve 2, thereby causing the lifting column 13 to move upward. At this time, the lifting column 13 drives the insertion tooth 12 to move upward, thereby causing the insertion tooth 12 to enter between the outer walls of the fixed tooth 11 and fix the fixed tooth 11.
[0029] Working principle: The shaft-shaped workpiece 3 is inserted into the sliding sleeve 2 from the direction of the positioning ring 16, thus allowing the shaft-shaped workpiece 3 to enter the moving seat 6. At this time, the sliding sleeve 2 is pulled, causing the inclined surface of its inner wall to move. This causes the inclined surface inside the sliding sleeve 2 to move towards the highest point of the inclined surface at the top of the elastic clamping block 4, thereby pressing the elastic clamping block 4 towards the center. This causes the elastic clamping block 4 to overlap with the outer wall of the shaft-shaped workpiece 3, at which point the shaft-shaped workpiece 3 is fixed by the elastic clamping block 4. By rotating the bolt 14, the bolt 14 moves upward through its threaded connection with the sliding sleeve 2, thereby causing the lifting column 13 to move upward. At this time, the lifting column 13 causes the insertion teeth 12 to move upward, thus causing the insertion teeth 12 to enter between the outer walls of the fixing teeth 11, fixing the fixing teeth 11. This fixes the fixed sleeve 1 and the sliding sleeve 2, preventing the sliding sleeve 2 from sliding. When the length of the shaft workpiece 3 changes, the worm 10 is rotated. Through the meshing of the worm 10 and the outer wall of the worm wheel 9, the worm 10 drives the worm wheel 9 to rotate, which in turn drives the bevel gear 8 to rotate. Through the rotation of the bevel gear 8, the bevel gear 8 meshes with the bevel gear 7, which in turn drives the threaded rod 5 to rotate. This causes the threaded rod 5 to rotate the thread on its outer wall. Since the threaded rod 5 is threadedly connected to the extension block on the outer wall of the moving seat 6, the threaded rod 5 drives the extension block on the outer wall of the moving seat 6 to move, which in turn causes the moving seat 6 to move. At this time, the movement of the moving seat 6 can lift the bottom end of the shaft workpiece 3 of different lengths.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A chamfering fixture for machining external threads on shafts using a disc chamfering machine, comprising a fixed sleeve (1), characterized in that: The outer wall of the fixed sleeve (1) is slidably connected to a sliding sleeve (2), and the inner wall of the sliding sleeve (2) is movably fitted with a shaft-shaped workpiece (3). A positioning ring (16) is fixedly installed on the side of the sliding sleeve (2) away from the fixed sleeve (1). A connecting column (17) is fixedly installed on the side of the fixed sleeve (1) away from the sliding sleeve (2). An elastic clamp (4) is fixedly installed on the side of the fixed sleeve (1) away from the positioning ring (16). A threaded rod (5) is rotatably connected to the inner wall of the fixed sleeve (1), and a movable seat is slidably connected to the inner wall of the fixed sleeve (1). (6) The inner wall of the fixed sleeve (1) is rotatably connected to a bevel gear one (7), a bevel gear two (8) and a worm (10). The outer wall of the bevel gear two (8) is fixedly installed with a worm wheel (9). The bottom of the fixed sleeve (1) is fixedly installed with an anti-rotation block (15). The inner wall of the anti-rotation block (15) is fixedly installed with a fixing tooth (11). The bottom inner wall of the sliding sleeve (2) is threaded with a bolt (14). The top of the bolt (14) is rotatably connected with a lifting column (13). The top of the lifting column (13) is fixedly installed with an insertion tooth (12).
2. The chamfering fixture for machining external threads on shafts using a disc chamfering machine according to claim 1, characterized in that: The inner wall of the sliding sleeve (2) is provided with an inclined surface, and the inclination angle of the inclined surface is the same as that of the top of the elastic clamp (4). The inclined surface of the inner wall of the sliding sleeve (2) overlaps with the top of the elastic clamp (4).
3. The chamfering fixture for machining external threads on shafts using a disc chamfering machine according to claim 1, characterized in that: The outer wall of the movable seat (6) is provided with an extension block, and the threaded rod (5) passes through the extension block of the outer wall of the movable seat (6). The threaded rod (5) and the movable seat (6) are threadedly connected.
4. A chamfering fixture for machining external threads on shafts using a disc chamfering machine according to claim 1, characterized in that: The first bevel gear (7) and the second bevel gear (8) are arranged at right angles, and the outer walls of the first bevel gear (7) and the second bevel gear (8) mesh with each other.
5. A chamfering fixture for machining external threads on shafts using a disc chamfering machine according to claim 1, characterized in that: The worm wheel (9) is adjacent to the worm (10), and the worm wheel (9) meshes with the outer wall of the worm (10).
6. A chamfering fixture for machining external threads on shafts using a disc chamfering machine according to claim 1, characterized in that: The shape of the insertion tooth (12) is adapted to the outer wall of the fixed tooth (11), and the insertion tooth (12) is located at the bottom of the fixed tooth (11).