Plane grinding tool for disc workpieces

Abstract

The utility model provides a plane grinding tool for disc workpieces, and belongs to the technical field of machining equipment. Comprising a tool base, a first positioning base is slidably arranged on the tool base in the radial direction of the tool base, an abutting wheel is rotatably arranged on the side, close to the center of the tool base, of the first positioning base, and a second positioning base is arranged on the side, away from the center of the tool base, of the first positioning base; the second positioning base extends towards the two sides of the first positioning base to form abutting parts used for abutting against the outer wall of the workpiece. After a worker places a workpiece on the tool seat, the first positioning seats synchronously move towards the tool seat to center the workpiece, then the second positioning seats synchronously move to clamp and fix the workpiece, and after a machinable area of the end face of the workpiece is ground, the second positioning seats move to loosen the workpiece, and the abutting wheels on the first positioning seats rotate to enable the workpiece to rotate; and after the unmachined area is moved out of the first positioning seat, the workpiece is fixed again to be machined, and the effect of protecting the threads in the inner hole of the workpiece is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a plane grinding tooling for disc-shaped workpieces. Background Art

[0002] In the process of mechanical manufacturing, it is often necessary to process some disc-shaped workpieces. In order to ensure the parallelism and roughness of the end faces at both ends of the workpiece to be processed, a grinding device needs to be used to perform grinding processing on the end face of the workpiece.

[0003] The patent with the publication number of CN202640052U discloses a plane grinding tooling for disc-shaped workpieces, which includes a taper mandrel, an expansion sleeve, a base plate, and a locking screw. The expansion sleeve is installed in the hole of the base plate, the taper mandrel is installed in the expansion sleeve, and the inner hole of the disc-shaped workpiece to be processed is used as the positioning reference and installed on the outer circle of the expansion sleeve. During processing, the end face of the workpiece to be processed is abutted against the end face of the base plate, and the locking screw is used to lock the workpiece to be processed on the base plate. The tooling of the utility model has a simple structure and is easy to manufacture, and all parts can be self-made; the workpiece is convenient to install and the operation is simple. Just locking the locking screw can realize the clamping and fastening of the workpiece, and ejecting the taper mandrel with a threaded jack can realize the disassembly of the workpiece.

[0004] However, in this technology, in the way of expanding the expansion sleeve in the inner hole of the disc-shaped workpiece to be processed to fasten the workpiece, the inner wall of the inner hole of the workpiece needs to bear a great pressure. For the workpiece with internal threads processed on the inner wall, the threads are likely to be deformed during the expansion process, resulting in difficulties in assembly when the workpiece is assembled, and affecting the dimensional accuracy of the workpiece. Summary of the Utility Model

[0005] In view of the above problems, the utility model provides a plane grinding tooling for disc-shaped workpieces.

[0006] In order to achieve the above invention purpose, the technical solution adopted by the utility model is as follows:

[0007] A plane grinding tooling for disc-shaped workpieces is provided, which includes a tooling seat. Along the radial direction of the tooling seat, a first positioning seat is slidably arranged. A plurality of first positioning seats are evenly spaced along the axial direction of the tooling seat. On one side of the first positioning seat close to the center of the tooling seat, an abutting wheel is rotatably arranged. The rotation axis of the abutting wheel is parallel to the axis of the tooling seat. On the tooling seat, a first driving component is arranged for driving a plurality of first positioning seats to approach / away from the center of the tooling seat synchronously. On the side of the first positioning seat away from the center of the tooling seat, a second positioning seat is arranged. On the second positioning seat, abutting parts for abutting against the outer wall of the workpiece extend out on both sides of the first positioning seat. On the tooling seat, a second driving component is arranged for driving the second positioning seat to move radially relative to the first positioning seat. On at least one first positioning seat, a first driving member is arranged for driving the abutting wheel to rotate.

[0008] Further, a first sliding groove is formed in the tooling seat along its radial direction, and the first positioning seat is slidably arranged in the first sliding groove. The first driving assembly includes a first driving disc and a first driving motor. The first driving disc is coaxially rotatably arranged in the tooling seat, a planar thread is arranged on the top wall of the first driving disc, and the bottom end of the first positioning seat is in threaded fit with the planar thread on the first driving disc. The first driving motor is arranged on the tooling seat and is used to drive the first driving disc to rotate.

[0009] Further, a second sliding groove is formed in the first positioning seat along its sliding direction, and the second positioning seat is slidably arranged in the second sliding groove. The second driving assembly includes a driving lead screw and a second driving member. A threaded sleeve is fixedly arranged on the second positioning seat, the threaded sleeve is threadedly sleeved on the driving lead screw, and the second driving member is used to drive the driving lead screw to rotate.

[0010] Further, the second driving member includes a second driving motor, a second driving disc and a guiding sleeve. The second driving disc is coaxially rotatably arranged on the tooling seat. A guiding rod with a polygonal cross-section is arranged in the first sliding groove along the length direction of the sliding groove. Both ends of the guiding rod are rotatably connected to the tooling seat. A first transmission gear is fixedly arranged on the guiding rod. A gear ring is coaxially fixed on the top wall of the second driving disc, and the gear ring is in meshing transmission with the first transmission gear. The second driving motor is arranged on the tooling seat, and the second driving motor is used to drive the second driving disc to rotate. The guiding sleeve is rotatably arranged on the first positioning seat, the guiding sleeve is slidably sleeved on the guiding rod, and the guiding sleeve is in transmission connection with the driving lead screw.

[0011] Further, a rubber layer is arranged on the outer wall of the abutting wheel, and the first driving member is a third driving motor. The third driving motor is arranged on the first positioning seat, and the third driving motor is used to drive the abutting wheel to rotate.

[0012] Further, a connecting plate extends from the top of the first positioning seat towards the middle of the tooling seat. A threaded hole is vertically formed in the connecting plate, a locking bolt is rotatably arranged in the threaded hole, and an abutting plate is rotatably arranged at the bottom of the locking bolt.

[0013] The beneficial effects of the utility model are as follows: When the staff grinds the end face of the disc-shaped workpiece, first place the workpiece on the tooling seat. Multiple first positioning seats move synchronously towards the middle of the tooling seat to center the workpiece first, and then the second positioning seats move synchronously to clamp the workpiece and fix the workpiece. Then, the end face of the workpiece can be ground. After machining the machinable area, the second positioning seats move to loosen the workpiece. The abutting wheels on the first positioning seats rotate to make the workpiece rotate. After moving the unprocessed area out of the position of the first positioning seats, the workpiece is fixed again for machining, which will not damage the threads in the inner hole of the workpiece and improves the protection effect on the workpiece. Description of the Drawings

[0014] Figure 1Schematic diagram of the overall structure of the tooling according to the embodiment of the present application.

[0015] Figure 2 Partial sectional structure schematic diagram of the tooling seat according to the embodiment of the present application.

[0016] Figure 3 is Figure 2 Partial enlarged schematic diagram of part A in

[0017] Wherein, 1. Tooling seat; 11. First chute; 2. First positioning seat; 21. First driving disk; 22. First driving motor; 23. Second chute; 24. Driving lead screw; 25. Third driving motor; 3. Abutting wheel; 4. Second positioning seat; 41. Abutting part; 42. Second driving motor; 43. Second driving disk; 44. Guide sleeve; 45. Guide rod; 46. Transmission gear; 5. Connecting plate; 51. Locking bolt; 52. Abutting plate. Detailed implementation manners

[0018] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0019] The embodiment of the present application discloses a plane grinding tooling for a disk-shaped workpiece. Referring to Figure 1 , Figure 2 and Figure 3 , it includes a tooling seat 1. A first positioning seat 2 is slidably arranged on the tooling seat 1 along the radial direction of the tooling seat 1, and a plurality of first positioning seats 2 are evenly spaced along the axial direction of the tooling seat 1. An abutting wheel 3 is rotatably arranged on one side of the first positioning seat 2 close to the center of the tooling seat 1, and the rotation axis of the abutting wheel 3 is parallel to the axis of the tooling seat 1. A first driving assembly for driving a plurality of first positioning seats 2 to approach / away from the center of the tooling seat 1 synchronously is arranged on the tooling seat 1. After placing the workpiece on the tooling seat 1, by driving a plurality of first positioning seats 2 to approach the middle of the tooling seat 1 synchronously through the first driving assembly, the side wall of the workpiece can be abutted by the abutting wheel 3, and the workpiece can be pushed to be concentric with the tooling seat 1.

[0020] A second positioning seat 4 is provided on one side of the first positioning seat 2 away from the center of the tooling seat 1. On the second positioning seat 4, abutting portions 41 for abutting against the outer wall of the workpiece extend towards both sides of the first positioning seat 2. A second driving assembly for driving the second positioning seat 4 to move radially relative to the first positioning seat 2 along the tooling seat 1 is provided on the tooling seat 1. When the abutting wheel 3 on the first positioning seat 2 pushes the workpiece to center the workpiece, the second driving assembly is then used to push the second positioning seat 4 to move towards the center of the tooling seat 1 relative to the first positioning seat 2, and the outer wall of the workpiece is tightly abutted by the abutting portions 41 on the second positioning seat 4, so as to completely fix the workpiece. A first driving member for driving the abutting wheel 3 to rotate is provided on at least one first positioning seat 2. When grinding the end face of the workpiece, due to the interference of the first positioning seat 2 and the second positioning seat 4, there are areas that cannot be machined. After the operator releases the limiting effect of the second positioning seat 4 on the workpiece, by driving the abutting wheel 3 to rotate and rotating the workpiece on the tooling seat 1, the unground areas on the workpiece are exposed between the first positioning seats 2, and the workpiece is fixed again and grinding processing is carried out.

[0021] In the embodiment of the present application, a first sliding groove 11 is formed in the tooling seat 1 along its own radial direction. The first positioning seat 2 is slidably arranged in the first sliding groove 11. The first driving assembly includes a first driving disk 21 and a first driving motor 22. The first driving disk 21 is coaxially and rotatably arranged in the tooling seat 1. A planar thread is provided on the top wall of the first driving disk 21. The bottom end of the first positioning seat 2 is in threaded cooperation with the planar thread on the first driving disk 21. The first driving motor 22 is fixedly installed on the tooling seat 1. The output shaft of the first driving motor 22 is connected with a gear. A toothed ring is integrally arranged coaxially on the bottom wall of the first driving disk 21. The gear of the first driving motor 22 meshes with the toothed ring of the first driving disk 21, so as to drive the first driving disk 21 to rotate by the first driving motor 22.

[0022] A second sliding groove 23 is formed in the first positioning seat 2 along its own sliding direction. The second positioning seat 4 is slidably installed in the second sliding groove 23. The second driving assembly includes a driving lead screw 24 and a second driving member. A threaded sleeve is fixedly arranged on the second positioning seat 4. The threaded sleeve is threadedly sleeved on the driving lead screw 24. The second driving member is used to drive the driving lead screw 24 to rotate. By driving the driving lead screw 24 to rotate, the second positioning seat 4 can be driven to slide relative to the first positioning seat 2 by the cooperation of the driving lead screw 24 and the threaded sleeve.

[0023] Specifically, the second driving member includes a second driving motor 42, a second driving disc 43 and a guiding sleeve 44. The second driving disc 43 is coaxially and rotatably arranged on the tooling seat 1. A guiding rod 45 with a polygonal cross-section is arranged along the length direction of the chute in the first chute 11. Both ends of the guiding rod 45 are rotatably connected to the tooling seat 1. A first transmission gear 46 is fixedly arranged on the guiding rod 45. A toothed ring is coaxially and fixedly arranged on the top wall of the second driving disc 43. The first transmission gear 46 on the guiding rod 45 meshes with the toothed ring of the second driving disc 43 for transmission. The second driving motor 42 is fixedly installed on the tooling seat 1. The second driving motor 42 drives the second driving disc 43 to rotate through the cooperation of gears. The guiding sleeve 44 is rotatably arranged on the first positioning seat 2. The guiding sleeve 44 is slidably sleeved on the guiding rod 45. The guiding sleeve 44 is in transmission connection with the driving lead screw 24.

[0024] By driving the second driving disc 43 to rotate, the guiding rod 45 on the tooling seat 1 can be driven to rotate. During the rotation of the guiding rod 45, the driving lead screw 24 on the first positioning seat 2 is driven to rotate, so that the second positioning seat 4 and the first positioning seat 2 slide relative to each other. When the first positioning seat 2 is independently driven to move in the first chute 11, the first positioning seat 2 can slide relative to the guiding rod 45 through the guiding sleeve 44. The second driving disc 43 is designed to synchronously drive the movement of multiple second positioning seats 4. In other embodiments, the second driving member can also be a driving motor independently installed on each first positioning seat 2, and the driving motor is directly in transmission connection with the driving lead screw 24.

[0025] In the embodiment of the present application, a rubber layer is arranged on the outer wall of the abutting wheel 3 to enhance the friction between the abutting wheel 3 and the outer wall of the workpiece, so as to facilitate driving the workpiece to rotate through the abutting wheel 3. The first driving member is a third driving motor 25. The third driving motor 25 is arranged on the first positioning seat 2. The output shaft of the third driving motor 25 can be coaxially and directly connected to the rotating shaft of the abutting wheel 3 to drive the abutting wheel 3 to rotate.

[0026] Furthermore, a connecting plate 5 extends from the top of the first positioning seat 2 towards the middle of the tooling seat 1. A threaded hole is vertically opened on the connecting plate 5. A locking bolt 51 is rotatably arranged in the threaded hole. The bottom of the locking bolt 51 is rotatably provided with an abutting plate 52. After the workpiece is centering-fixed and installed through the first positioning seat 2 and the second positioning seat 4, in order to further enhance the fixing effect on the workpiece, the locking bolt 51 can be tightened to make the abutting plate 52 press down the workpiece, further enhancing the stability of the workpiece during the processing.

[0027] Those skilled in the art should understand that although the preferred embodiments of the present invention have been described, once those skilled in the art know the basic creative concept, additional changes and modifications can be made to these embodiments. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention. Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A planar grinding tooling for disk-shaped workpieces, characterized in that: It includes a tooling base (1). A first positioning seat (2) is slidably arranged on the tooling base (1) along the radial direction of the tooling base (1). A plurality of the first positioning seats (2) are arranged at equal intervals along the axial direction of the tooling base (1). A contact wheel (3) is rotatably arranged on one side of the first positioning seat (2) close to the center of the tooling base (1). The rotation axis of the contact wheel (3) is parallel to the axis of the tooling base (1). A first driving assembly for driving a plurality of the first positioning seats (2) to synchronously approach / away from the center of the tooling base (1) is arranged on the tooling base (1). A second positioning seat (4) is arranged on one side of the first positioning seat (2) away from the center of the tooling base (1). Contact portions (41) for contacting the outer wall of the workpiece extend from the second positioning seat (4) to both sides of the first positioning seat (2). A second driving assembly for driving the second positioning seat (4) to move radially relative to the first positioning seat (2) along the tooling base (1) is arranged on the tooling base (1). A first driving member for driving the contact wheel (3) to rotate is arranged on at least one of the first positioning seats (2).

2. The planar grinding tooling for a disk-shaped workpiece according to claim 1, characterized in that, A first chute (11) is opened on the tooling base (1) along its own radial direction. The first positioning seat (2) is slidably arranged in the first chute (11). The first driving assembly includes a first driving disc (21) and a first driving motor (22). The first driving disc (21) is coaxially rotatably arranged in the tooling base (1). A planar thread is arranged on the top wall of the first driving disc (21). The bottom end of the first positioning seat (2) is in threaded fit with the planar thread on the first driving disc (21). The first driving motor (22) is arranged on the tooling base (1) and is used to drive the first driving disc (21) to rotate.

3. The planar grinding tooling for a disc-shaped workpiece according to claim 2, wherein, A second chute (23) is opened on the first positioning seat (2) along its own sliding direction. The second positioning seat (4) is slidably arranged in the second chute (23). The second driving assembly includes a driving lead screw (24) and a second driving member. A threaded sleeve is fixedly arranged on the second positioning seat (4). The threaded sleeve is threadedly sleeved on the driving lead screw (24). The second driving member is used to drive the driving lead screw (24) to rotate.

4. A planar grinding tooling for disk-shaped workpieces according to claim 3, characterized in that, The second driving member includes a second driving motor (42), a second driving disk (43) and a guiding sleeve (44). The second driving disk (43) is coaxially and rotatably arranged on the tooling base (1). A guiding rod (45) with a polygonal cross-section is arranged in the first sliding groove (11) along the length direction of the sliding groove. Both ends of the guiding rod (45) are rotatably connected to the tooling base (1). A first transmission gear (46) is fixedly arranged on the guiding rod (45). A gear ring is coaxially and fixedly arranged on the top wall of the second driving disk (43). The gear ring is in meshing transmission with the first transmission gear (46). The second driving motor (42) is arranged on the tooling base (1). The second driving motor (42) is used to drive the second driving disk (43) to rotate. The guiding sleeve (44) is rotatably arranged on the first positioning seat (2). The guiding sleeve (44) is slidably sleeved on the guiding rod (45). The guiding sleeve (44) is in transmission connection with the driving lead screw (24).

5. The planar grinding tooling for a disc workpiece according to claim 1, characterized in that, A rubber layer is arranged on the outer wall of the abutting wheel (3). The first driving member is a third driving motor (25). The third driving motor (25) is arranged on the first positioning seat (2). The third driving motor (25) is used to drive the abutting wheel (3) to rotate.

6. A planar grinding tooling for a disc-shaped workpiece according to any one of claims 1 to 5, characterized in that, A connecting plate (5) extends from the top of the first positioning seat (2) towards the middle of the tooling base (1). A threaded hole is vertically formed in the connecting plate (5). A locking bolt (51) is rotatably arranged in the threaded hole. The bottom of the locking bolt (51) is rotatably provided with an abutting plate (52).

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