Gear grinding clamp
By designing a tooth grinding fixture including multiple mechanical components, the problem that the prior art cannot handle the hollow workpiece is solved, effective positioning and fixing of the hollow workpiece is achieved, and teeth grinding can be performed.
Patent Information
- Application Number
- CN202421684395.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Existing grinding tooling cannot be used for hollow workpieces because they require positioning holes to position the workpiece.
A grinding fixture is designed, including a pressing member, a pressing head, a centering column, a pull rod, an adjustment rod, a pull seat, an adjustment seat, an end-face positioning seat and a base. The adjustment rod drives the adjustment seat to move in the radial direction of the workpiece, and the adjustment rod drives the traction seat to move in the axial direction of the workpiece, and the pull rod pulls the pressing head to press the centering column to expand to fix the workpiece.
Effective positioning and fixing of hollow workpieces is realized, and teeth grinding can be performed, solving the problem that the prior art cannot handle hollow workpieces.
Smart Images
Figure CN222890650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear grinding, in particular to a gear grinding fixture. Background Art
[0002] Current gear grinding tools all require the use of ejectors to position the workpiece. This type of tooling requires machining positioning holes on the workpiece and is only applicable to solid workpieces. Hollow workpieces do not have positioning holes and cannot be positioned using ejectors. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a gear grinding fixture suitable for hollow workpieces.
[0004] The adjusting base is provided with an adjusting device and the adjusting base is provided with an adjusting screw which is provided on the adjusting base and the adjusting screw is provided with a adjusting screw which is provided on the adjusting base.
[0005] Furthermore, the adjusting rod includes an adjusting section with a thread, a connecting plate for connecting to the adjusting seat, and a connecting section connecting the connecting plate and the adjusting section as a whole, and the diameter of the connecting plate is less than or equal to the major diameter of the thread of the adjusting section.
[0006] Furthermore, a connecting groove is provided on the adjustment seat, the connecting groove is T-shaped, the diameter of the connecting section is smaller than the diameter of the connecting disk, and the connecting disk is located in the connecting groove.
[0007] Furthermore, the adjustment seat has an inclined slide groove, and the traction seat is provided with a slide rail adapted to the slide groove.
[0008] Furthermore, the centering column includes a centering body and a radial deformation part arranged on the centering body. The centering body is provided with a placement groove, and the radial deformation part is placed in the placement groove. When the pull rod pulls the pressure head, the pressure head squeezes the radial deformation part, so that the radial deformation part protrudes out of the centering body.
[0009] Furthermore, the radial deformation member is a rubber block.
[0010] Furthermore, the centering column has a tapered hole, the base has a tapered guide column, and the inner wall of the tapered hole contacts the outer wall of the tapered guide column.
[0011] Furthermore, the base includes a base body, a mounting seat and a baffle, the base body has an adjustment groove, the baffle is installed on the base body and closes the adjustment groove to form an adjustment cavity, and the base body is fixed on the mounting seat.
[0012] Furthermore, an exhaust hole is provided on the end surface positioning seat.
[0013] Furthermore, a limiting groove is provided on the pull rod, and a limiting pin is provided on the base, and the limiting pin extends into the limiting groove to limit the circumferential position of the adjusting rod.
[0014] The utility model gear grinding fixture utilizes an end face positioning seat to position the end face of a workpiece, the centering column extends into the workpiece to center the workpiece, the adjusting rod pulls the adjusting seat to move in the radial direction of the workpiece, the adjusting seat drives the traction seat to move in the axial direction of the workpiece, the traction seat drives the pull rod to move axially, the pull rod pulls the pressure head to press the centering column to expand the centering column to fix the workpiece and center the workpiece at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a preferred implementation of the gear grinding fixture of the utility model.
[0016] Figure 2 It is a cross-sectional view of AA.
[0017] Figure 3 It is a schematic diagram of the structure of the base.
[0018] Figure 4 It is a structural diagram of the adjusting rod.
[0019] Figure 5 It is a structural diagram of the adjustment seat.
[0020] Figure 6 It is a structural diagram of the fifth wheel.
[0021] Figure 7 It is a structural schematic diagram of the centering column.
[0022] Figure 8 It is a structural diagram of the pull rod.
[0023] The meanings of the symbols in the accompanying drawings are:
[0024] Base 1, seat body 11, adjustment groove 110, mounting hole 111, mounting table 112, tapered guide column 113, mounting seat 12, baffle 13, limit pin 14, pressure head 2, centering column 3, centering body 31, radial deformation member 32, pull rod 4, limit groove 41, adjustment rod 5, adjustment section 51, connecting plate 52, connecting section 53, traction seat 61, slide rail 611, adjustment seat 62, connecting groove 621, slide groove 622, end face positioning seat 7, exhaust hole 71, clamping member 8, workpiece 9. DETAILED DESCRIPTION
[0025] The utility model will be further described below in conjunction with the accompanying drawings.
[0026] like Figure 1 and Figure 2 As shown, a preferred embodiment of the gear grinding fixture of the utility model comprises a clamping member 8, a pressure head 2, a centering column 3, a pull rod 4, an adjustment rod 5, a traction seat 61, an adjustment seat 62, an end face positioning seat 7 and a base 1. The base 1 has an adjustment cavity, the adjustment seat 62 is located in the adjustment cavity, the adjustment rod 5 is screwed on the base 1 and extends into the adjustment cavity to be connected with the adjustment seat 62, and the adjustment rod 5 is used to drive the adjustment seat 62 to move radially in the adjustment cavity, and the radial direction is based on the radial direction of the workpiece 9. The traction seat 61 is slidably arranged on the adjustment seat 62, and the traction seat 61 can slide on the adjustment seat 62. When the adjustment seat 62 moves radially, it drives the traction seat 61 to move in the axial direction of the workpiece 9. The lower end of the pull rod 4 is connected to the traction seat 61, and the upper end of the pull rod 4 is connected to the pressure head 2. The pull rod 4 is pulled by the traction seat 61, thereby driving the pressure head 2 to move. The centering column 3 is sleeved on the upper end of the base 1. The centering column 3 can expand to fix the workpiece 9 through friction and complete the centering at the same time. The end face positioning seat 7 is installed on the upper end of the base 1 and is coaxially arranged with the centering column 3. The end face positioning seat 7 is used to locate the end face of the workpiece 9; the centering column 3 is higher than the end face positioning seat 7, which is convenient for extending the centering column 3 into the inner hole of the workpiece 9 to center the workpiece 9. The pressing member 8 is used to press the workpiece 9 against the end face positioning seat 7.
[0027] like Figure 3As shown, the base 1 includes a base body 11, a mounting seat 12 and a baffle 13. The lower end of the base body 11 has an adjustment groove 110. The baffle 13 is installed on the base body 11 and closes the adjustment groove 110 to form an adjustment cavity. The base body 11 is fixed on the mounting seat 12. The bottom of the adjustment groove 110 is provided with a mounting hole 111, and the pull rod 4 is arranged in the mounting hole 111. The top of the base body 11 is provided with a mounting table 112, and the mounting table 112 is used to install the end face positioning seat 7. The center of the mounting table 112 protrudes outward to form a tapered guide column 113. The centering column 3 has a tapered hole to facilitate the adaptation with the tapered guide column 113. The centering column 3 is sleeved on the tapered guide column 113, which can make the centering column 3 more stably sleeved on the tapered guide column 113. The end face positioning seat 7 is provided with an exhaust hole 71 to facilitate the exhaust of gas in the sealed space formed by the conical guide column 113, the centering column 3 and the end face positioning seat 7, so that the centering column 3 can be installed more smoothly.
[0028] like Figure 4 As shown, the adjusting rod 5 includes an adjusting section 51 with a thread, a connecting plate 52 for connecting to the adjusting seat 62, and a connecting section 53 connecting the connecting plate 52 and the adjusting section 51 as a whole. The adjusting section 51 is screwed on the base 1, and the diameter of the connecting plate 52 is less than or equal to the major diameter of the thread of the adjusting section 51, ensuring that the connecting plate 52 can pass through the base 1 into the adjusting cavity and connect to the adjusting seat 62.
[0029] like Figure 5 and Figure 6 As shown, the adjustment seat 62 is provided with a connecting groove 621 and a sliding groove 622. The connecting groove 621 is axially arranged and runs through the entire adjustment seat 62, so that during assembly, the inner end of the adjustment rod 5, that is, the end extending into the adjustment cavity, can be slid into the connecting groove 621 to complete the assembly of the adjustment rod 5 and the adjustment seat 62, which is convenient for assembly. The connecting groove 621 is T-shaped, the diameter of the connecting section 53 is smaller than the diameter of the connecting disk 52, and the connecting disk 52 is located in the connecting groove 621, so that it can be ensured that the adjustment rod 5 will not be separated from the connecting groove 621 in the radial direction. The end face of the adjustment seat 62 close to one end of the pull rod 4 is an inclined surface, and the sliding groove 622 is inclined and parallel to the inclined surface. The traction seat 61 is slidably arranged in the sliding groove 622, and the traction seat 61 moves in the sliding groove 622 to achieve axial movement. The traction seat 61 is provided with a slide rail 611 adapted to the slide groove 622. The slide rail 611 is parallel to the slide groove 622. The slide rail 611 is slidably arranged in the slide groove 622. The slide rail 611 and the slide groove 622 are both T-shaped to ensure that the slide rail 611 will not be separated from the slide groove 622 in the axial direction.
[0030] like Figure 7As shown, the centering column 3 includes a centering body 31 and a radial deformation member 32 arranged on the centering body 31. The centering body 31 is provided with a placement groove, and the radial deformation member 32 is placed in the placement groove. The radial deformation member 32 is a rubber block. When the pull rod 4 pulls the pressure head 2, the pressure head 2 squeezes the radial deformation member 32, so that the radial deformation member 32 protrudes out of the centering body and abuts against the inner wall of the inner hole of the workpiece 9. The friction force is used to fix the workpiece 9, which can effectively prevent the workpiece 9 from falling after the clamping member 8 is removed. In order for the pressure plate to squeeze the radial deformation member 32 well, the end face of the radial deformation member 32 is slightly higher than the centering body 31.
[0031] like Figure 8 As shown, the pull rod 4 is provided with a limiting groove 41, and the base 1 is provided with a limiting pin 14, and the limiting pin 14 extends into the limiting groove 41 to limit the adjusting rod 5 circumferentially, that is, to effectively prevent the pull rod 4 from rotating.
[0032] When in use, after placing the workpiece 9 on the end surface positioning seat 7, the adjusting member is rotated to allow the adjusting seat 62 to move radially, and the adjusting seat 62 drives the traction seat 61 to move axially toward one side of the adjusting seat 62, and the traction seat 61 drives the pull rod 4 to move axially, and the pull rod 4 pulls the pressure head 2 to move, and the movement of the pressure head 2 squeezes and deforms the radial deformation member 32, thereby fixing the workpiece 9 and centering it, and finally the clamping member 8 clamps the other end of the workpiece 9, and processing can be carried out. The hollow workpiece 9 can be fixed to complete the gear grinding process.
[0033] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.
Claims
1. A gear grinding fixture, characterized in that: The cam is configured to move the traction seat in a radial direction of the workpiece and to drive the traction seat to move in an axial direction of the workpiece. The adjusting rod is screwed on the base and extends into the adjusting cavity to be connected with the adjusting seat. The lower end of the pull rod is connected with the traction seat, and the upper end of the pull rod is connected with the pressure head. The centering column is sleeved on the base, and the end face positioning seat is installed on the base. The end face positioning seat is used to position the end face of the workpiece. The clamping member is used to press the workpiece against the end face positioning seat, the adjusting rod is used to adjust the position of the adjusting seat, the adjusting seat is used to drive the traction seat to move, the traction seat is used to drive the pull rod to move, and the pull rod is used to pull the centering column to expand it to fix the workpiece.
2. The gear grinding fixture according to claim 1, characterized in that: The adjusting rod comprises an adjusting section with threads, a connecting plate for connecting to the adjusting seat and a connecting section connecting the connecting plate and the adjusting section as a whole, wherein the diameter of the connecting plate is smaller than or equal to the major diameter of the threads of the adjusting section.
3. The gear grinding fixture according to claim 2, characterized in that: The adjusting seat is provided with a connecting groove, which is T-shaped. The diameter of the connecting section is smaller than the diameter of the connecting disk, and the connecting disk is located in the connecting groove.
4. The gear grinding fixture according to claim 1, characterized in that: The adjustment seat has an inclined sliding groove, and the traction seat is provided with a sliding rail adapted to the sliding groove.
5. The gear grinding fixture according to claim 1, characterized in that: The centering column includes a centering body and a radial deformation part arranged on the centering body. The centering body is provided with a placement groove, and the radial deformation part is placed in the placement groove. When the pull rod pulls the pressure head, the pressure head squeezes the radial deformation part, so that the radial deformation part protrudes out of the centering body.
6. The gear grinding fixture according to claim 5, characterized in that: The radial deformation member is a rubber block.
7. The gear grinding fixture according to claim 1, characterized in that: The centering column has a tapered hole, the base has a tapered guide column, and the inner wall of the tapered hole contacts the outer wall of the tapered guide column.
8. The gear grinding fixture according to claim 1, characterized in that: The base comprises a base body, a mounting seat and a baffle, wherein the base body has an adjustment groove, the baffle is mounted on the base body and closes the adjustment groove to form an adjustment cavity, and the base body is fixed on the mounting seat.
9. The gear grinding fixture according to claim 1, characterized in that: The end surface positioning seat is provided with an exhaust hole.
10. The gear grinding fixture according to claim 1, characterized in that: A limiting groove is arranged on the pull rod, and a limiting pin is arranged on the base. The limiting pin extends into the limiting groove to limit the circumferential position of the adjusting rod.