High-precision magnetic core air gap grinding machine convenient to adjust
By designing height adjustment components and scale indicators in the core air gap grinder, the existing mills have been solved in the adjustment accuracy and flexibility, and high-precision core air gap grinding is achieved, improving product quality and production efficiency.
Patent Information
- Application Number
- CN202421879655.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing magnetic core air gap grinders have defects in the adjustment function, including inaccurate adjustment of the height of the grinding wheel and the spacing of the limit baffle, resulting in inconsistent grinding effects and affecting the performance of the transformer.
A high-precision magnetic core air gap grinder including height adjustment assembly and scale indication is designed. Through the combination of a lead screw and driven gear, the position of the limit pick plate is flexibly adjusted through the structure of the slide groove and the pin.
It realizes high-precision adjustment during the core air gap grinding process, improves processing accuracy, reduces dust pollution, and protects the working environment and the health of operators.
Smart Images
Figure CN222857652U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of magnetic core processing, and particularly relates to a high-precision magnetic core air gap grinding machine which is easy to adjust. Background Art
[0002] In the transformer manufacturing industry, precise grinding of the core air gap is the core link to ensure product performance and quality. However, the widely used core air gap grinding machines currently have significant defects in their adjustment functions, which directly restrict the further improvement of production efficiency and product quality.
[0003] First, regarding the adjustment of the extension height of the grinding wheel, existing grinding machines generally lack an intuitive and precise adjustment mechanism. The traditional manual adjustment method is not only cumbersome to operate, but also inconvenient to increase the extension height of the grinding wheel in time after the grinding wheel is worn, and it is difficult to ensure that each adjustment can achieve the desired accuracy. This uncertainty often leads to inconsistent grinding effects, which in turn affects the overall performance of the transformer.
[0004] Secondly, the adjustment of the distance between the limit baffle and the grinding wheel edge is also a challenge. Due to design limitations, existing grinders are often unable to flexibly adjust the position of the limit baffle according to the specific size and shape of the magnetic core. This not only limits the versatility of the grinder, but may also cause unnecessary damage to the magnetic core during the grinding process, or affect the grinding quality due to improper spacing.
[0005] Furthermore, a grinding machine that runs for a long time is prone to loss of adjustment accuracy due to vibration and wear. The position of the grinding wheel and the limit baffle may shift due to these factors, making the originally set parameters invalid, which in turn affects the accuracy and stability of subsequent processing. This hidden danger not only increases the risk in the production process, but may also have an adverse effect on the continuity and stability of the production line.
[0006] In summary, the existing magnetic core air gap grinding machine has obvious deficiencies in adjustment accuracy and flexibility, and a new type of grinding machine is urgently needed to overcome these shortcomings and hidden dangers. Summary of the invention
[0007] In view of the above-mentioned deficiencies in the prior art, the utility model provides a high-precision magnetic core air gap grinding machine that is easy to adjust to solve the above-mentioned problems.
[0008] The utility model discloses a high-precision magnetic core air gap grinding machine which is easy to adjust, comprising a base, a box body with a top opening is arranged on the base, a driving motor is arranged on one side of the box body, a driving shaft of the driving motor is arranged in the box body, a grinding wheel is arranged on the driving shaft, a workbench which slides up and down is arranged on the top of the box body, a protruding groove which matches with the grinding wheel is opened on the workbench, a limit baffle is arranged on one side of the protruding groove for sliding movement of the workbench, three slide grooves which are perpendicular to the protruding groove and parallel to each other are arranged on the limit baffle, and a groove which matches with the two outer slide grooves is arranged on the workbench A matching pin is provided, and a locking portion is provided between the rest of the slide groove and the workbench, a spacing scale line is provided between the limit baffle and the protruding groove, a sleeve is provided at the bottom of the workbench, a screw nut is provided at the bottom end of the sleeve, a screw is threaded in the screw nut, a driven gear is provided at the bottom end of the screw, a rocking wheel is provided on the outside of the box body, a folding handle is provided on the outside of the rocking wheel, a transmission shaft penetrating into the box body is provided on the inner axis of the rocking wheel, a transmission gear meshing with the driven gear is provided on the transmission shaft, and a bracket rotatably connected to the screw is provided in the box body.
[0009] Furthermore, a gear box covering the driven gear and the transmission gear is arranged on the bracket.
[0010] Furthermore, a protruding groove adapted to the outer wall of the box body is provided at the bottom of the workbench, and the protruding groove is slidably connected to the outer wall of the box body.
[0011] Furthermore, a height scale line matching the extension groove is arranged on the outer wall of the box.
[0012] Furthermore, the locking portion includes bolts and nuts, the workbench is provided with bolts corresponding to the remaining slide grooves, and the bolts are provided with matching nuts, and the bottom end of each nut abuts against the limit baffle.
[0013] Furthermore, a suction pipe parallel to the driving shaft is passed through the box body, a coaxially rotatably connected air duct is provided on the suction pipe, a circle of blades is provided in an axially rotating array on the air duct, and a transmission part is provided between the air duct and the driving shaft; a filter box is provided at the outer end of the suction pipe, and a filter element is provided in the filter box.
[0014] Furthermore, the transmission part is a synchronous belt, and the drive shaft and the air duct are both provided with belt teeth adapted to the synchronous belt.
[0015] Furthermore, a rubber pad is provided at the bottom of the base.
[0016] Furthermore, the outer ring of the rocking wheel is provided with a dial, and the box body is provided with a pointer corresponding to the dial.
[0017] Compared with the existing technology, this grinder not only achieves high-precision adjustment during the core air gap grinding process, but also ensures a significant improvement in processing accuracy through precise height adjustment components and scale indications; at the same time, the innovative dust collection system design effectively solves the dust pollution problem generated during the grinding process, protecting the working environment and the health of operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a front view of the utility model;
[0019] Figure 2 It is a front cross-sectional view of the utility model;
[0020] Figure 3 It is a top view of the utility model;
[0021] Figure 4 This is the right side view of the box.
[0022] In the figure: 1. base; 2. box; 3. drive motor; 4. drive shaft; 5. grinding wheel; 6. workbench; 7. extension slot; 8. limit baffle; 9. slide slot; 10. pin; 11. locking part; 12. spacing scale line; 13. sleeve; 14. screw mother seat; 15. screw; 16. driven gear; 17. rocker; 18. folding handle; 19. transmission shaft; 20. transmission gear; 21. bracket; 22. guide column; 23. guide hole; 24. gear box; 25. extension slot; 26. height scale line; 27. suction pipe; 28. air duct; 29. transmission part; 30. filter box; 31. filter element; 32. dial. DETAILED DESCRIPTION
[0023] In order to better understand the present invention, Figures 1 to 4 To explain the implementation of the present utility model in detail.
[0024] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up, and down” are used as the basis.
[0025] The utility model proposes a high-precision magnetic core air gap grinding machine that is easy to adjust, and its specific structure and implementation method are as follows:
[0026] First, the grinder includes a stable base 1 for supporting the whole device. A box 2 with an open top is installed on the base 1. The box 2 serves as the main working space of the grinder and contains various transmission and adjustment mechanisms. A driving motor 3 is fixed to one side of the box 2, and its driving shaft 4 passes through the inside of the box 2 and is directly connected to the grinding wheel 5 installed at the end of the shaft to provide rotational power for the grinding wheel 5.
[0027] A workbench 6 that can slide up and down is arranged on the top of the box 2, a guide column 22 is arranged at the bottom of the workbench 6, a guide hole 23 that matches the guide column 22 is arranged on the box 2, and a height adjustment component is arranged between the workbench 6 and the box 2 to adjust the extension height of the grinding wheel 5. Figure 2 As shown in , the height adjustment assembly is the key to achieving precise adjustment of the extension height of the grinding wheel 5, and specifically includes a sleeve 13 installed at the bottom of the workbench 6, a screw nut 14 and a screw 15 inserted into the screw nut 14 are installed at the bottom end of the sleeve 13, and a bracket 21 matched with the screw 15 is arranged in the box body 2. A driven gear 16 (bevel gear) is installed at the bottom end of the screw 15, and a crank 17 with a folding handle 18 is arranged on the outside of the box body 2. The inner axis of the crank 17 is connected to a transmission shaft 19 that penetrates into the box body 2, and the transmission shaft 19 is equipped with a transmission gear 20 (bevel gear) that meshes with the driven gear 16. By shaking the crank 17, the transmission gear 20 can be driven to rotate, and then the screw 15 can be driven to move up and down in the sleeve 13, so as to achieve precise adjustment of the extension height of the workbench 6 and the grinding wheel 5. At the same time, as Figure 4 As shown in , the outer ring of the rocking wheel 17 is also provided with a dial 32, and a pointer is installed at a corresponding position on the box body 2 to achieve accurate reading of the height adjustment.
[0028] In order to protect the transmission structure, a gear box 24 covering the driven gear 16 and the transmission gear 20 is also provided on the bracket 21 .
[0029] The workbench 6 is provided with a protruding groove 25 that matches the grinding wheel 5, ensuring that the grinding wheel 5 can accurately align with and contact the air gap of the magnetic core to be processed when rotating. On one side of the workbench 6, a limit stopper 8 is slidably provided to limit the position of the magnetic core during the grinding process to prevent it from shifting.
[0030] The limit baffle 8 is provided with three slide grooves 9 which are perpendicular to the extension groove 25 and parallel to each other. The two outer slide grooves 9 are matched with the pins 10 provided on the workbench 6 to fix the basic position of the baffle. A locking part 11 is provided between the middle slide groove 9 and the workbench 6. In this embodiment, a bolt and a nut are used as the locking part 11. By tightening the nut, the limit baffle 8 can be firmly locked in the desired position. In addition, a spacing scale line 12 is also provided between the limit baffle 8 and the extension groove 25, so that the operator can intuitively adjust and confirm the spacing between the baffle and the grinding wheel 5.
[0031] like Figure 1As shown in , in order to further improve the intuitiveness and convenience of adjustment, the outer wall of the box body 2 is provided with a height scale line 26 that matches the extension groove 25 on the workbench 6, and the operator can quickly and accurately adjust the height of the workbench 6 according to the height scale line 26. At the same time, the bottom of the workbench 6 is also designed with an extension groove 25 that matches the outer wall of the box body 2, ensuring that the workbench 6 can move smoothly and accurately when sliding up and down.
[0032] In addition, considering the dust generated during the grinding process, it will cause pollution to the working environment. Figure 1 and Figure 2 As shown in the figure, a suction pipe 27 parallel to the drive shaft 4 is provided on the box body 2, and a wind pipe 28 coaxially connected and rotatably connected is installed on the suction pipe 27. A circle of blades rotating in an array about the axis is provided on the wind pipe 28. When the drive shaft 4 rotates, the wind pipe 28 and the blades are driven to rotate through the transmission part 29 (a synchronous belt in this embodiment), generating suction force to suck the dust generated by grinding into the suction pipe 27. A filter box 30 is connected to the outer end of the suction pipe 27, and a filter element 31 is installed in the box for filtering dust to protect the working environment and the cleanliness of the equipment.
[0033] Finally, in order to improve the stability and shock absorption effect of the device, a layer of rubber pad is also provided at the bottom of the base 1 to reduce vibration and noise when the device is running.
[0034] The usage and principle of this utility model:
[0035] The magnetic core to be processed is placed on the workbench 6 , and the position of the limit baffle 8 is adjusted to make it fit closely with one side of the air gap of the magnetic core, and at the same time, the spacing between the baffle and the grinding wheel 5 is adjusted according to the spacing scale line 12 .
[0036] By shaking the crank 17 with the handle, the height adjustment assembly can be used to accurately adjust the extension height of the workbench 6 and the grinding wheel 5 until the desired processing position is reached. When the grinding wheel 5 is worn after a long period of processing, the crank 17 can also be rotated by the dial 32 and the pointer to make fine adjustments to ensure that the extension height of the grinding wheel 5 is accurate.
[0037] The driving motor 3 is started to rotate the grinding wheel 5 to start grinding the air gap of the magnetic core. At the same time, the suction force generated by the air duct 28 and the rotation of the blades sucks the dust generated during the grinding process into the suction pipe 27 and is filtered through the filter box 30.
[0038] After the grinding is completed, the driving motor 3 is turned off, the positions of the limit baffle 8 and the grinding wheel 5 are adjusted, and the processed magnetic core is removed to prepare for the next round of processing.
[0039] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high-precision magnetic core air gap grinding machine that is easy to adjust, characterized in that: The invention comprises a base (1), wherein a box body (2) with a top opening is arranged on the base (1), a driving motor (3) is arranged on one side of the box body (2), a driving shaft (4) of the driving motor (3) is arranged in the box body (2), a grinding wheel (5) is arranged on the driving shaft (4), a workbench (6) which slides up and down is arranged on the top of the box body (2), a protruding groove (25) which matches with the grinding wheel (5) is opened on the workbench (6), a limit baffle (8) is slidably arranged on one side of the protruding groove (25), three slide grooves (9) which are perpendicular to the protruding groove (25) and parallel to each other are arranged on the limit baffle (8), a pin (10) which matches with the two outer slide grooves (9) is arranged on the workbench (6), and a fixing plate (11) which is provided between the remaining slide grooves (9) and the workbench (6) is provided. A locking portion (11) is provided, a spacing scale line (12) is provided between the limit baffle (8) and the extension groove (25), a sleeve (13) is provided at the bottom of the workbench (6), a screw nut (14) is provided at the bottom end of the sleeve (13), a screw nut (14) is threadedly connected to the screw nut (14), a driven gear (16) is provided at the bottom end of the screw (15), a rocking wheel (17) is provided on the outside of the box body (2), a folding handle (18) is provided on the outside of the rocking wheel (17), a transmission shaft (19) penetrating into the box body (2) is provided on the inner axis of the rocking wheel (17), a transmission gear (20) meshing with the driven gear (16) is provided on the transmission shaft (19), and a bracket (21) rotatably connected to the screw (15) is provided in the box body (2).
2. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: The bracket (21) is provided with a gear box (24) covering the driven gear (16) and the transmission gear (20).
3. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: The bottom of the workbench (6) is provided with a protruding groove (25) adapted to the outer wall of the box body (2), and the protruding groove (25) is slidably connected to the outer wall of the box body (2).
4. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 3, characterized in that: The outer wall of the box body (2) is provided with a height scale line (26) matching the extension groove (25).
5. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: The locking portion (11) comprises bolts and nuts, the workbench (6) is provided with bolts corresponding to the remaining slide grooves (9), and the bolts are provided with matching nuts, and the bottom end of each nut abuts against the limit baffle (8).
6. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: The housing (2) is provided with a suction pipe (27) parallel to the driving shaft (4); the suction pipe (27) is provided with a coaxially rotatably connected air duct (28); the air duct (28) is provided with a circle of blades in an axially rotating array; a transmission part (29) is provided between the air duct (28) and the driving shaft (4); a filter box (30) is provided at the outer end of the suction pipe (27), and a filter element (31) is provided in the filter box (30).
7. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 6, characterized in that: The transmission part (29) is a synchronous belt, and the drive shaft (4) and the air duct (28) are both provided with belt teeth that match the synchronous belt.
8. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: A rubber pad is provided at the bottom of the base (1).
9. A high-precision magnetic core air gap grinding machine that is easy to adjust as claimed in claim 1, characterized in that: The outer ring of the rocking wheel (17) is provided with a dial (32), and the box body (2) is provided with a pointer corresponding to the dial (32).