A positioning device for a regrinding disc cutter
By designing a positioning device that includes a base plate, a base, a rectangular frame, a lifting seat, and a rotating block, the problem of inflexible fixing in the machining of re-grinding disc cutters was solved, and flexible positioning and wide applicability of re-grinding disc cutters were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYUAN INTERNAL DISTRIBUTION GRP BEARING CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
In the current re-grinding disc cutting process, the fixing frame cannot be adjusted according to the diameter of the re-grinding disc cutter, resulting in insufficient flexibility, narrow applicability, and low practicality.
A positioning device comprising a base plate, a base, a rectangular frame, a lifting seat, and a rotating block is designed. The front and rear positions are adjusted by limiting grooves and positioning bolts, and the height of the lifting seat and the positioning of the rotating block are adjusted by locking nuts and tightening screws, thereby achieving flexible fixation of the grinding disc cutter.
It enables vertical adjustment and front-to-back positioning based on the diameter of the grinding disc cutter, improving the flexibility and applicability of use. It has a simple structure and is easy to use.
Smart Images
Figure CN224526534U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of re-grinding disc tool processing technology, and specifically relates to a positioning device for a re-grinding disc tool. Background Technology
[0002] A re-grinding disc cutter, also known as a milling cutter, is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, each cutting tooth intermittently removes the excess material from the workpiece. Re-grinding disc cutters are mainly used on milling machines to machine parts such as the locating lip and short oil groove of bearing bushes.
[0003] Currently, in the machining process of regrinding disc cutters, grinding wheels are needed to polish the cutters for tasks such as grinding angles, tooth bevels, and surface finishing. The general procedure is as follows: first, the regrinding disc cutter is mounted on a tool holder; then, two centers are used to support the ends of the tool holder for fixation; next, a mounting bracket is used to position the regrinding disc cutter from below; and finally, a grinding wheel is used to polish the cutter. However, because regrinding disc cutters come in various diameters, and the mounting bracket cannot be adjusted to accommodate these diameters, the process is inflexible, has a narrow application range, and low practicality.
[0004] Therefore, there is an urgent need for a positioning device for the grinding disc cutter to solve the above problems. Utility Model Content
[0005] To address the aforementioned deficiencies in the existing technology, this utility model provides a positioning device for a re-grinding disc cutter, comprising a base plate, a base, a rectangular frame, a lifting seat, and a rotating block. The base is fixed to the base plate, and a sliding groove is provided inside the base. The top of the base has a slot communicating with the sliding groove. The rectangular frame includes an integrally formed upper frame beam, a lower frame beam, a left frame beam, and a right frame beam. The rectangular frame is slidably connected to the sliding groove of the base through the left and right frame beams. Protruding ribs are provided on opposite sides of the left and right frame beams. The lifting seat is located above the base, and the bottom of the lifting seat is fixedly connected to the upper frame beam of the rectangular frame. The lifting seat has a receiving cavity inside, and the top and left side of the lifting seat are open. The rotating block is rotatably connected to the upper left part of the receiving cavity of the lifting seat through a pin.
[0006] Optionally, two limiting grooves are provided on the front and rear sides of the base plate, and each limiting groove is provided with a positioning bolt.
[0007] Optionally, a locking nut is provided in the sliding groove of the base. The locking nut is fitted between the left and right frame beams of the rectangular frame and is located in front of the protruding edge. The center hole of the locking nut is threaded with a locking screw, and the rear end of the locking screw passes through the rear side wall of the base.
[0008] Specifically, the locking nut is also located between the upper frame beam and the lower frame beam. The locking nut can limit the lower frame beam to prevent the rectangular frame from completely disengaging from the sliding groove during the pulling process.
[0009] Optionally, the locking nut is a hexagonal nut, with the inscribed circle diameter of the hexagonal nut being greater than the distance between the two protruding edges and less than the distance between the left and right frame beams.
[0010] Specifically, two parallel sides of the hexagonal nut are in a vertical position, which can fit perfectly between the left and right frame beams. When the locking screw is turned, whether the hexagonal nut is tightened or loosened, it will not rotate due to the restriction of the left and right frame beams, thus playing a certain limiting role. At the same time, the hexagonal nut can also press the two protruding edges, which can position the extension length of the rectangular frame, thereby adjusting the height of the lifting seat.
[0011] Optionally, a tightening screw is provided through the right side of the lifting seat, and the tightening screw is threadedly connected to the right side wall of the lifting seat. The tightening screw is used to tighten and support the upper end of the rotating block. A spring is provided in the receiving cavity of the lifting seat, and the spring is located below the tightening screw. The left and right ends of the spring abut against the rotating block and the right side wall of the lifting seat, respectively. The spring can be used to press the lower end of the rotating block, and can also play a role in effectively rebounding and repositioning the rotating block.
[0012] Optionally, the top of the rotating block is provided with a support part, and the shape of the support part is adapted to the gap between any two teeth on the grinding disc cutter.
[0013] This invention also includes other components that enable the positioning device of a regrinding disc cutter to function properly, all of which are conventional techniques in the art. Furthermore, any devices or components not specified in this invention employ conventional techniques in the art.
[0014] The working principle of this utility model is as follows: First, the grinding disc cutter to be processed is installed on the cutter holder. Then, the positions of the two centers on the processing platform are adjusted so that the two centers are against both ends of the cutter holder, thus fixing the cutter holder. Next, this device is placed on the processing platform, positioned directly below the grinding disc cutter. The front and rear positions of the entire device can be adjusted using the limiting groove and positioning bolts. Then, the lifting seat is raised so that the support part of the rotating block abuts against the gap between the two teeth at the bottom of the grinding disc cutter. Finally, the locking screw is turned to tighten the locking nut. The raised edges of the rectangular frame are used to position the lifting seat. At the same time, the tightening screw is turned to gradually tighten the rotating block. With the pin as the fulcrum, the tightening screw and the spring apply torque from both ends of the rotating block until the support part tightens the grinding disc cutter from below to achieve the positioning function. Finally, the grinding disc cutter is ground with a grinding wheel. After grinding, the locking screw is turned in the opposite direction to loosen the locking nut and lower the lifting seat. At the same time, the tightening screw is turned in the opposite direction to use the spring to make the rotating block spring back to its original position and start grinding the next grinding disc cutter.
[0015] The advantages of this utility model are that it has a simple structure and is easy to use. It can not only adjust the lifting seat up and down according to the diameter of the grinding disc, but also adjust the entire device back and forth through the limiting groove and positioning bolt. It is flexible in use, has a wide range of applications, and is highly practical. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the internal structure of the lifting seat and base of this utility model.
[0019] Figure 3 This is a schematic diagram of the rectangular frame structure of this utility model.
[0020] Figure 4 for Figure 3 Sectional view along the AA direction.
[0021] Figure 5 This is a schematic diagram of the structure of a positioning device for a re-grinding disc cutter provided in an embodiment of the present invention, when it is positioned below the re-grinding disc cutter.
[0022] Figure 6 This is a schematic diagram of the positioning device for a re-grinding disc cutter provided in this embodiment of the present invention during actual use.
[0023] In the diagram: 1. Base plate, 2. Base, 3. Rectangular frame, 4. Lifting seat, 5. Rotating block, 6. Limiting groove, 7. Positioning bolt, 8. Sliding groove, 9. Upper frame beam, 10. Lower frame beam, 11. Left frame beam, 12. Right frame beam, 13. Protruding ridge, 14. Locking nut, 15. Locking screw, 16. Pin, 17. Support part, 18. Tightening screw, 19. Spring, 20. Re-grinding disc cutter, 21. Tool holder, 22. Center, 23. Machining platform. Detailed Implementation
[0024] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.
[0025] Example
[0026] like Figure 1-6 As shown, this utility model embodiment provides a positioning device for a re-grinding disc cutter, including a base plate 1, a base 2, a rectangular frame 3, a lifting seat 4, and a rotating block 5. The base plate 1 has two limiting grooves 6 on its front and rear sides, and each limiting groove 6 is provided with a positioning bolt 7. The base 2 is fixed to the base plate 1, and the interior of the base 2 is provided with a sliding groove 8. The top of the base 2 has a slot communicating with the sliding groove 8. The rectangular frame 3 includes an integrally formed upper frame beam 9, a lower frame beam 10, a left frame beam 11, and a right frame beam 12. The rectangular frame 3 is connected to the left frame beam 11 and the right frame beam 12. The beam 12 is slidably connected in the sliding groove 8 of the base 2. The left frame beam 11 and the right frame beam 12 are provided with protruding ribs 13 on opposite sides. The lifting seat 4 is located above the base 2. The bottom of the lifting seat 4 is fixedly connected to the upper frame beam 9 of the rectangular frame 3. The lifting seat 4 has an internal cavity, and the top and left side of the lifting seat 4 are open. The rotating block 5 is rotatably connected to the upper left part of the cavity of the lifting seat 4 through the pin 16. The top of the rotating block 5 is provided with a support part 17, and the shape of the support part 17 is adapted to the gap between any two teeth on the grinding disc cutter 20.
[0027] A locking nut 14 is also provided in the sliding groove 8 of the base 2. The locking nut 14 is fitted between the left frame beam 11 and the right frame beam 12 of the rectangular frame 3 and is located in front of the protrusion 13. The center hole of the locking nut 14 is threadedly connected to a locking screw 15, and the rear end of the locking screw 15 penetrates the rear side wall of the base 2.
[0028] Understandably, the locking nut 14 is also located between the upper frame beam 9 and the lower frame beam 10. The locking nut 14 can limit the lower frame beam 10 to prevent the rectangular frame 3 from completely disengaging from the sliding groove 8 during the pulling process.
[0029] The locking nut 14 is a hexagonal nut. The diameter of the inscribed circle of the hexagonal nut is greater than the distance between the two protruding edges 13 and less than the distance between the left frame beam 11 and the right frame beam 12.
[0030] Understandably, the two parallel sides of the hexagonal nut are in a vertical position, which can fit perfectly between the left frame beam 11 and the right frame beam 12. Thus, when the locking screw 15 is turned, whether the hexagonal nut is tightened or loosened, it will not rotate due to the restriction of the left frame beam 11 and the right frame beam 12, thus playing a certain limiting role. At the same time, the hexagonal nut can also press the two protruding edges 13, which can position the extension length of the rectangular frame 3, thereby adjusting the height of the lifting seat 4.
[0031] In addition, a tightening screw 18 is provided through the right side of the lifting seat 4, and the tightening screw 18 is threadedly connected to the right side wall of the lifting seat 4. The tightening screw 18 is used to tighten and support the upper end of the rotating block 5. A spring 19 is provided in the receiving cavity of the lifting seat 4, and the spring 19 is located below the tightening screw 18. The left and right ends of the spring 19 abut against the rotating block 5 and the right side wall of the lifting seat 4, respectively. The spring 19 can be used to press the lower end of the rotating block 5 on the one hand, and on the other hand, it can also play a role in effectively rebounding and repositioning the rotating block 5.
[0032] The working principle of this utility model is as follows: First, the grinding disc cutter 20 to be processed is installed on the cutter bar 21. Then, the positions of the two tips 22 on the processing platform 23 are adjusted so that the two tips 22 are against the two ends of the cutter bar 21 to fix the cutter bar 21. Then, this device is placed on the processing platform 23 so that it is directly below the grinding disc cutter 20. The front and rear positions of the entire device can be adjusted by the limiting groove 6 and the positioning bolt 7. Then, the lifting seat 4 is lifted up so that the support part 17 of the rotating block 5 abuts against the gap between the two cutting teeth at the bottom of the grinding disc cutter 20. Then, the locking screw 15 is turned to tighten the locking nut 14. The protruding ridge 13 of the rectangular frame 3 positions the lifting seat 4. At the same time, the tightening screw 18 is turned to gradually tighten the rotating block 5. With the pin 16 as the fulcrum, the tightening screw 18 and the spring 19 apply torque from both ends of the rotating block 5 until the support part 17 tightens the grinding disc cutter 20 from below to achieve the positioning function. Finally, the grinding disc cutter 20 is ground with a grinding wheel. After grinding, the locking screw is turned in the opposite direction to loosen the locking nut 14 and lower the lifting seat 4. At the same time, the tightening screw 18 is turned in the opposite direction, and the rotating block 5 is returned to its original position by the spring 19, so that the next grinding disc cutter 20 can be ground.
[0033] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims
1. A positioning device for a re-grinding disc cutter, comprising a base plate, a base, a rectangular frame, a lifting seat, and a rotating block, characterized in that: The base is fixed to the base plate. The base has a sliding groove inside and a slot at the top that communicates with the sliding groove. The rectangular frame includes an integrally formed upper frame beam, lower frame beam, left frame beam, and right frame beam. The rectangular frame is slidably connected to the sliding groove of the base through the left and right frame beams. The left and right frame beams have protruding ribs on opposite sides. The lifting seat is located above the base. The bottom of the lifting seat is fixedly connected to the upper frame beam of the rectangular frame. The lifting seat has a receiving cavity inside and the top and left side of the lifting seat are open. The rotating block is rotatably connected to the upper left part of the receiving cavity of the lifting seat through a pin.
2. The positioning device for the re-grinding disc cutter according to claim 1, characterized in that: The base plate has two limiting grooves on the front and rear sides, and each limiting groove is equipped with a positioning bolt.
3. The positioning device for the re-grinding disc cutter according to claim 2, characterized in that: A locking nut is provided in the sliding groove of the base. The locking nut is fitted between the left and right frame beams of the rectangular frame and is located in front of the protruding edge. The center hole of the locking nut is threaded with a locking screw, and the rear end of the locking screw passes through the rear side wall of the base.
4. The positioning device for the re-grinding disc cutter according to claim 3, characterized in that: The locking nut is a hexagonal nut. The diameter of the inscribed circle of the hexagonal nut is greater than the distance between the two protruding edges and less than the distance between the left frame beam and the right frame beam.
5. The positioning device for the re-grinding disc cutter according to claim 4, characterized in that: A tightening screw is installed through the right side of the lifting seat, and the tightening screw is threaded to the right side wall of the lifting seat. A spring is installed in the receiving cavity of the lifting seat, and the spring is located below the tightening screw. The left and right ends of the spring abut against the rotating block and the right side wall of the lifting seat, respectively.
6. The positioning device for the re-grinding disc cutter according to claim 5, characterized in that: The top of the rotating block is provided with a support part, and the shape of the support part is adapted to the gap between any two teeth on the grinding disc cutter.