An eccentric sleeve gear shaping device
Patent Information
- Application Number
- CN202522379238.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0008]本实用新型提供的一种偏心套插齿加工装置的有益效果在于：本偏心套插齿加工装置结构简单，设计巧妙，通过对工装夹具及工装结构的创新设计，可以确保偏心套在实际插齿加工过程中保持工装稳定，进而提高加工精度。
Smart Images
Figure CN224913722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eccentric sleeve processing technology, specifically to an eccentric sleeve gear cutting device. Background Technology
[0002] A gear shaper is a machine tool used to process gears, racks, and other toothed parts. Its working principle is based on the generating method of gear meshing, which can be understood through the coordination of the following key movements: 1. Cutting motion (main motion): The gear shaper cutter moves in a reciprocating linear motion, cutting the tooth blank of the workpiece with its cutting edge to form the tooth surface. 2. Splitting motion (generating motion): The gear shaper cutter and the workpiece rotate at a certain transmission ratio (equivalent to a pair of meshing gears). 3. Radial feed motion: During the cutting process, the gear shaper cutter gradually moves radially along the workpiece until the required tooth depth is reached, completing the machining of the entire tooth groove. 4. Retreating motion: To avoid friction between the gear shaper cutter and the machined surface of the workpiece during the return stroke, the workpiece or cutter makes a slight retreating motion, returning to its original position after the return stroke. Through the coordinated operation of these movements, the gear shaper can efficiently and accurately process various toothed parts.
[0003] The eccentric sleeve is a crucial component of the finishing mill. Adjusting its angle within the mill unit changes the center distance between the eccentric sleeve roll shafts, thereby producing steel wire rods of different sizes and specifications. During actual processing, the top of the eccentric sleeve requires tooth machining, and this machining requires very high precision. Because the gear shaping machine exerts significant impact on the eccentric sleeve during processing, ensuring the stability of the tooling during the actual gear shaping process, and thus improving machining accuracy, is a technical problem that needs to be solved in this field. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model proposes an eccentric sleeve gear shaping device. Through innovative design of the tooling fixture and tooling structure, it can ensure that the eccentric sleeve remains stable during the actual gear shaping process, thereby improving the machining accuracy.
[0005] To achieve the above technical solution, this utility model provides an eccentric sleeve gear shaping device, comprising: a gear shaping machine, on which a tooling fixture is installed, the tooling fixture including a base flange, the base flange being fixed to the operating table of the gear shaping machine, a positioning seat being installed on the base flange, an eccentric sleeve being placed on the positioning seat and positioned and fixed by a first pin, a cylinder mounting base being installed inside the positioning seat, a vertically upwardly arranged clamping cylinder being installed on the cylinder mounting base, a limit cover plate being installed above the clamping cylinder, a clamping support being installed on the limit cover plate, the clamping cylinder and the bottom of the clamping support being connected by a connecting rod, a through hole being provided at the top of the clamping support, the through hole on the clamping support corresponding to a through hole on the outer wall of the eccentric sleeve, a transverse pressure rod passing through the through hole on the clamping support and the through hole on the outer wall of the eccentric sleeve laterally, and a tool block being fixed to the top of the eccentric sleeve by a second pin.
[0006] In the above technical solution, during actual assembly, it is only necessary to fix the base flange of the tooling fixture to the operating table of the gear shaping machine, then place the eccentric sleeve on the positioning seat and fix it in place with the first pin, then pass the transverse pressure rod through the through hole provided on the clamping support and the corresponding through hole provided on the outer wall of the eccentric sleeve, and then fix the tool setting block to the top of the eccentric sleeve with the second pin. Then, start the equipment, and the clamping cylinder pulls the clamping support downward through the connecting rod. The clamping support drives the transverse pressure rod to press the eccentric sleeve onto the positioning seat, ensuring that the eccentric sleeve maintains the stability of the tooling during the actual processing. Finally, the gear shaping machine drives the gear shaping tool to process the top of the eccentric sleeve through the tool setting block.
[0007] Preferably, the tool setting block includes a tool setting block body, the bottom of which is provided with a positioning boss. The positioning boss is inserted into the top of the eccentric sleeve. A tooth tip is provided on one side of the positioning boss, and a positioning pin hole matching the pin hole on the top of the eccentric sleeve is provided on the other side of the tooth tip. The positioning pin hole is aligned with the pin hole on the top of the eccentric sleeve and then fixed by a second pin. In actual operation, the tool setting block is used to correct the relative position of the tool and the part. The center line of the tooth tip coincides with the eccentric connection line of the eccentric sleeve, and the tooth profile of the tooth tip is consistent with the tooth profile of the target part.
[0008] The beneficial effects of the eccentric sleeve gear shaping device provided by this utility model are as follows: This eccentric sleeve gear shaping device has a simple structure and ingenious design. Through the innovative design of the tooling fixture and tooling structure, it can ensure that the eccentric sleeve maintains tooling stability during the actual gear shaping process, thereby improving the machining accuracy. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the three-dimensional structure assembly of this utility model.
[0010] Figure 2This is a three-dimensional assembly diagram of the tooling fixture and eccentric sleeve in this utility model.
[0011] Figure 3 This is a top view of the assembly structure of the tooling fixture and eccentric sleeve in this utility model.
[0012] Figure 4 This is a cross-sectional view of the assembly structure of the tooling fixture and eccentric sleeve in this utility model.
[0013] Figure 5 This is a bottom view of the blade block in this utility model.
[0014] In the diagram: 1. Gear hobbing machine; 2. Tooling fixture; 21. Base flange; 22. Positioning seat; 23. Horizontal pressure bar; 24. Clamping support; 25. Clamping cylinder; 26. Connecting rod; 27. Limiting cover plate; 28. Cylinder mounting base; 29. First pin; 210. Second pin; 3. Tool setting block; 31. Positioning boss; 32. Positioning pin hole; 33. Gear tip; 4. Gear hobbing cutter; 5. Eccentric sleeve. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0016] Example: An eccentric sleeve gear cutting device.
[0017] Reference Figures 1 to 5As shown, an eccentric sleeve gear shaping device includes: a gear shaping machine 1, on which a tooling fixture 2 is mounted, the tooling fixture 2 including a base flange 21, the base flange 21 being fixed to the operating table of the gear shaping machine 1, a positioning seat 22 being mounted on the base flange 21, an eccentric sleeve 5 being placed on the positioning seat 22 and positioned and fixed by a first pin 29, a cylinder mounting base 28 being installed inside the positioning seat 22, and a vertically upward-mounted... The clamping cylinder 25 has a limit cover plate 27 installed above it. A clamping support 24 is installed on the limit cover plate 27. The bottom of the clamping cylinder 25 and the clamping support 24 are connected by a connecting rod 26. The top of the clamping support 24 is provided with a through hole. The through hole on the clamping support 24 corresponds to the through hole on the outer wall of the eccentric sleeve 5. The transverse pressure rod 23 passes through the through hole on the clamping support 24 and the through hole on the outer wall of the eccentric sleeve 5 in a transverse direction. The tool setting block 3 is fixed to the top of the eccentric sleeve 5 by a second pin 210. The tool setting block 3 includes a tool setting block body, and a positioning boss 31 is provided at the bottom of the tool setting block body. The positioning boss 31 is inserted into the top of the eccentric sleeve 5. A tooth tip 33 is provided on one side of the positioning boss 31, and a positioning pin hole 32 is provided on one side of the tooth tip 33, which matches the pin hole provided on the top of the eccentric sleeve 5. The positioning pin hole 32 is aligned with the pin hole provided on the top of the eccentric sleeve 5 and then fixed by the second pin 210. In actual operation, the tool setting block 3 is used to correct the relative position of the tool and the part. The center line of the tooth tip 33 coincides with the eccentric connection line of the eccentric sleeve 5, and the tooth profile of the tooth tip 33 is consistent with the tooth profile of the target part.
[0018] In this embodiment, during actual assembly, it is only necessary to fix the base flange 21 of the tooling fixture 2 to the operating table of the gear shaping machine 1, then place the eccentric sleeve 5 on the positioning seat 22 and fix it in place by the first pin 29, then pass the horizontal pressure rod 23 through the through hole provided on the clamping support 24 and the corresponding through hole provided on the outer wall of the eccentric sleeve 5, and then fix the tool setting block 3 to the top of the eccentric sleeve 5 by the second pin 210. Then, start the equipment, and the clamping cylinder 25 pulls the clamping support 24 downward through the connecting rod 26. The clamping support 24 drives the horizontal pressure rod 23 to press the eccentric sleeve 5 onto the positioning seat 22, ensuring that the eccentric sleeve 5 remains stable during actual processing. Finally, the gear shaping machine 1 drives the gear shaping tool 4 to process the top of the eccentric sleeve 5 through the tool setting block 3. After processing, the clamping cylinder 25 drives the clamping support 24 to reset via the connecting rod 26, then the horizontal pressure rod 23 is pulled out, and the eccentric sleeve 5 is removed from the positioning seat 22 of the tooling fixture 2.
[0019] This eccentric sleeve gear hobbing device has a simple structure and ingenious design. Through the innovative design of the tooling fixture 2 and the tooling structure, it can ensure that the eccentric sleeve 5 maintains tooling stability during the actual gear hobbing process, thereby improving the machining accuracy.
[0020] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.
Claims
1. An eccentric sleeve gear shaping device, comprising: A gear hobbing machine, wherein a tooling fixture is installed on the gear hobbing machine, characterized in that the tooling fixture includes a base flange, the base flange is fixed to the operating table of the gear hobbing machine, a positioning seat is installed on the base flange, an eccentric sleeve is placed on the positioning seat and positioned and fixed by a first pin, a cylinder mounting base is installed inside the positioning seat, a vertically upward clamping cylinder is installed on the cylinder mounting base, a limit cover plate is installed above the clamping cylinder, a clamping support is installed on the limit cover plate, the clamping cylinder and the bottom of the clamping support are connected by a connecting rod, a through hole is provided at the top of the clamping support, the through hole on the clamping support corresponds to a through hole on the outer wall of the eccentric sleeve, a transverse pressure rod passes through the through hole on the clamping support and the through hole on the outer wall of the eccentric sleeve laterally, and a tool block is fixed to the top of the eccentric sleeve by a second pin.
2. The eccentric sleeve gear shaping device as described in claim 1, characterized in that: The tool setting block includes a tool setting block body. A positioning boss is provided at the bottom of the tool setting block body. The positioning boss is inserted into the top of the eccentric sleeve. A tooth top is provided on one side of the positioning boss. A positioning pin hole is provided on one side of the tooth top, which matches the pin hole provided on the top of the eccentric sleeve. The positioning pin hole is aligned with the pin hole provided on the top of the eccentric sleeve and then fixed by a second pin.