Polishing device for mutual inductor shell

Abstract

The invention provides a mutual inductor shell grinding device, and belongs to the technical field of mutual inductor machining, the mutual inductor shell grinding device comprises a grinding base and a grinding top seat, a clamping assembly is arranged between the grinding base and the grinding top seat, a grinding mechanism is arranged on the outer side of the clamping assembly, and the clamping assembly comprises a clamping rotating disc; a clamping hole extending in the axis direction of the clamping rotary disc is formed in the edge of the top of the clamping rotary disc, an opening is formed in the connecting position of the side wall of the clamping hole and the edge of the clamping rotary disc, a clamping groove extending in the radial direction of the clamping rotary disc is formed in the middle of the side wall of the clamping hole, and a clamping mechanism is arranged in the clamping groove. The clamping mechanism comprises a clamping sliding block which slides in the radial direction of the clamping rotary disc, a connecting sliding block is arranged on the side, away from the clamping hole, of the clamping sliding block, all the outer surfaces of the mutual inductor shell can be ground at the same time through the grinding base, the grinding top base and the grinding mechanism, and meanwhile the clamping assembly is arranged, so that the grinding efficiency is improved; and the device can clamp and grind the mutual inductor shells with various different diameters.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer processing, and particularly relates to a transformer shell polishing device. Background Art

[0002] Instrument transformers, also known as instrument transformers, are a general term for current transformers and voltage transformers. They convert high voltages into low voltages and high currents into low currents for use in measurement or protection systems. They provide electrical isolation, voltage conversion, and current conversion. Instrument transformer housings are cast, and their surfaces are prone to flash and burrs. Therefore, they undergo polishing during the manufacturing process to improve surface quality and meet precision requirements.

[0003] A Chinese patent with authorization publication number CN107671674B discloses an efficient high-voltage transformer housing polishing device. The device includes a controller, a horizontal slider, an upper movable plate, a lower movable plate, a bottom plate, a first vertical plate, a first column, a second vertical plate, a second column, and a polishing top seat. A lifting cylinder is connected between the upper movable plate and the polishing top seat, a spring is connected between the upper and lower movable plates, a first upper pulley, a second upper pulley, and a driving pulley drive unit are fixed to the lower movable plate, and two supporting devices are fixed to the bottom plate. This invention's polishing device can polish the housings of two transformers at a time, achieving high polishing efficiency.

[0004] Existing transformer housing polishing devices can only polish one surface of the transformer housing at a time. After polishing one surface, the workpiece or polishing head must be adjusted before polishing the rest of the transformer housing. This process results in low transformer housing polishing efficiency and requires multiple manual operations to complete the entire polishing of a transformer housing. Summary of the Invention

[0005] The purpose of the present invention is to provide a transformer housing polishing device, which aims to solve the problem in the prior art that only one surface of the transformer housing can be polished at a time. After polishing one surface, the workpiece or the polishing head needs to be adjusted before polishing other surfaces of the transformer housing.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a transformer housing polishing device, comprising a polishing base and a polishing top seat, a clamping assembly is provided between the polishing base and the polishing top seat, a polishing mechanism is provided on the outside of the clamping assembly, the clamping assembly comprises a clamping turntable, a clamping hole extending along its axial direction is provided at the top edge of the clamping turntable, an opening is provided at the connection between the side wall of the clamping hole and the edge of the clamping turntable, a clamping groove extending radially along the clamping turntable is provided in the middle of the side wall of the clamping hole, and a clamping mechanism is provided in the clamping groove.

[0007] The clamping mechanism includes a clamping slider that slides radially along the clamping turntable, a connecting slider is provided on the side of the clamping slider away from the clamping hole, an adjusting slide groove is provided on the top of the clamping turntable, which extends radially along the clamping turntable and is connected to the clamping groove, a guide column whose axis extends radially along the clamping turntable is fixedly installed on the inner wall of the adjusting slide groove, a transmission slider that is slidably sleeved on the outer wall of the guide column is fixedly installed on the top of the connecting slider, and a clamping elastic member that is sleeved on the outer wall of the guide column is fixedly installed between the side of the transmission slider away from the clamping slider and the inner wall of the adjusting slide groove.

[0008] There are at least two clamping holes, and the plurality of clamping holes are evenly distributed along the circumferential direction of the clamping turntable.

[0009] The beneficial effects of the present invention are as follows: by providing a clamping turntable, a clamping hole and a clamping mechanism, when the transformer housing is being polished, it can be placed in the clamping hole, and it is ensured that the axis of the transformer housing remains parallel to the axis of the clamping hole. Subsequently, the transformer housing is clamped at the opening where the side wall of the clamping hole and the edge of the clamping turntable are connected by the clamping mechanism. When the clamping turntable is driven to rotate, the transformer housing will rotate accordingly. At this time, the polishing base, the polishing top seat and the polishing mechanism can simultaneously polish all outer surfaces of the transformer housing. In addition, by providing a clamping mechanism to clamp the transformer housing, the device can be applied to transformer housings of various diameters and perform effective clamping and polishing. At the same time, by providing multiple clamping holes, multiple transformer housings can be clamped at the same time for synchronous polishing, thereby greatly improving the polishing efficiency of the device.

[0010] Mounting grooves are provided at both ends of the side walls of the clamping slider close to the clamping hole, and support shafts with axes parallel to the axis of the clamping turntable are installed in the two mounting grooves. A transmission shaft with an axis parallel to the axis of the clamping turntable is rotatably installed at the end of the clamping groove away from the clamping hole, a transmission belt is connected between the transmission shaft and the outer walls of the two support shafts, and a tensioning member for tensioning the transmission belt is installed at the end of the clamping groove away from the clamping hole.

[0011] The advantage is that by arranging the drive shaft, support shaft, and transmission belt, the transmission belt is positioned between the clamping slider when it clamps the transformer housing. During the transformer housing polishing process, the clamping turntable rotates the transformer housing, while the drive shaft, via the transmission belt, simultaneously drives the transformer housing to rotate. This allows the device to simultaneously polish both ends and the sidewalls of the transformer housing, thereby improving polishing efficiency.

[0012] Guide grooves perpendicular to the moving direction of the clamping slider are symmetrically opened on the top wall and bottom wall of the clamping groove at one end away from the clamping hole. The tensioning part includes four guide sliders, and the four guide sliders are slidably installed at both ends of the two guide sliders. A tensioning elastic part is fixedly connected between the two guide sliders in the same guide slider, and a tensioning column is fixedly installed between the corresponding guide sliders in the two guide sliders. Both tensioning columns are in contact with the inner wall of the transmission belt.

[0013] The effect is that, by providing the guide slider, tensioning spring, and tensioning post, when the clamping slider moves away from the drive shaft, the transmission belt tightens and drives the two tensioning posts toward each other. At this point, the guide sliders mounted on the two tensioning posts also move toward each other, compressing the tensioning spring. Conversely, when the clamping slider approaches the drive shaft, the transmission belt loosens. At this point, the tensioning spring begins to release the elastic force accumulated during compression, driving the two tensioning posts and the guide slider fixed to them away from each other, thereby tensioning the loosened transmission belt. This ensures that the transmission belt remains tensioned, enabling normal operation and transmission, thereby driving the transformer housing to rotate during the grinding process.

[0014] The top wall of the grinding base is provided with an annular groove concentric with it, and a fixed outer gear ring concentrically arranged therewith is fixedly installed on the annular inner wall of the annular groove. The bottom end of the transmission shaft passes through the clamping turntable and extends into the annular groove and is fixedly provided with a transmission gear, which is meshed and connected with the fixed outer gear ring.

[0015] The effect is that by providing a transmission gear and a fixed outer ring gear, when the clamping turntable drives the transmission shaft to rotate, the transmission shaft drives the transmission gear mounted at the bottom to rotate along the circumference of the fixed outer ring gear. Because the fixed outer ring gear and the transmission gear are meshed with each other, while the transmission shaft drives the transmission gear to rotate along the circumference of the fixed outer ring gear, the transmission gear also drives the transmission shaft to rotate on its own, driven by the fixed outer ring gear. In this way, the device can simultaneously drive the transmission shaft to rotate while driving the clamping turntable, thereby driving the transformer housing to rotate on its own, without the need for an additional drive source.

[0016] The grinding mechanism includes a support column and a grinding belt. There are multiple support columns, and the multiple support columns are evenly arranged in a semi-circular shape between the grinding base and the grinding top seat along the circumferential direction of the clamping turntable. The top and bottom of the support columns are fixedly connected to the grinding top seat and the grinding base respectively. The grinding belt wraps around the outer walls of the multiple support columns, and one side outer wall of the grinding belt contacts the outer wall of the clamping turntable.

[0017] The effect is that by providing multiple support columns distributed in a semi-circular pattern and wrapping the abrasive belt around the outer walls of these support columns, the abrasive belt can be tightly attached to the outer wall of the clamping turntable along its circumference. Therefore, when the clamping turntable drives the transformer housing to rotate, the abrasive belt can effectively grind the side walls of the transformer housing.

[0018] A lower grinding piece is fixedly installed on the top of the grinding base. The lower grinding piece is an annular grinding wheel and is concentrically arranged with the clamping turntable. The lower grinding piece is located below the clamping hole.

[0019] The grinding top seat is a semicircular plate and is coaxially arranged with the clamping turntable. The bottom of the grinding top seat is fixedly installed with an upper grinding piece, which is a semi-annular grinding wheel. The upper grinding piece corresponds to the lower grinding piece.

[0020] A grinding motor is fixedly installed on the top of the grinding top seat, and a rotating shaft coaxially arranged with the clamping turntable is rotatably installed on the bottom of the grinding top seat. The bottom end of the rotating shaft passes through the clamping turntable and is rotatably connected to the grinding base. The clamping turntable is fixedly connected to the outer wall of the rotating shaft, and the top of the rotating shaft passes through the grinding top seat and is transmission-connected to the output shaft of the grinding motor.

[0021] The clamping elastic member and the tensioning elastic member are both springs.

[0022] The result is a grinding motor that, by providing lower and upper grinding elements, drives the clamping turntable via a rotating shaft. This rotation not only drives the transformer housing in synchronous rotation (here, orbiting around the center of the clamping turntable), but also drives the transformer housing in rotation. Furthermore, the lower grinding element grinds the lower end surface of the transformer housing, while the upper grinding element grinds the upper end surface.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a clamping turntable, a clamping hole and a clamping mechanism, when the transformer housing is being polished, it can be placed in the clamping hole, and ensure that the axis of the transformer housing is parallel to the axis of the clamping hole. Subsequently, the transformer housing is clamped at the opening where the side wall of the clamping hole and the edge of the clamping turntable are connected by the clamping mechanism. When the clamping turntable is driven to rotate, the transformer housing will rotate accordingly. At this time, the polishing base, the polishing top seat and the polishing mechanism can simultaneously polish all outer surfaces of the transformer housing. In addition, by setting a clamping mechanism to clamp the transformer housing, the device can be applied to transformer housings of various diameters and perform effective clamping and polishing. At the same time, by setting multiple clamping holes, multiple transformer housings can be clamped at the same time for synchronous polishing, thereby greatly improving the polishing efficiency of the device.

[0024] 2. By arranging a drive shaft, support shaft, and transmission belt, the transmission belt is positioned between the clamping slider when it clamps the transformer housing. During the transformer housing grinding process, the clamping turntable rotates the transformer housing, while the drive shaft, via the transmission belt, simultaneously drives the transformer housing to rotate. This allows the device to simultaneously grind both ends and the sidewalls of the transformer housing, improving grinding efficiency.

[0025] 3. By providing a guide slider, tensioning spring, and tensioning post, when the clamping slider moves away from the drive shaft, the transmission belt tightens and drives the two tensioning posts toward each other. At this point, the guide sliders attached to the two tensioning posts also move toward each other, compressing the tensioning spring. Conversely, when the clamping slider approaches the drive shaft, the transmission belt loosens. At this point, the tensioning spring begins to release the elastic force accumulated during compression, driving the two tensioning posts and the guide slider fixed to them away from each other, thereby tensioning the loosened transmission belt. This ensures that the transmission belt remains tensioned, enabling normal operation and transmission, thereby driving the transformer housing to rotate during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the grinding device of the present invention; Figure 2 Schematic diagram of the top view of the clamping assembly in the present invention; Figure 3 is a top cross-sectional schematic diagram of the clamping assembly in the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a schematic front cross-sectional view of the clamping assembly in the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a schematic diagram of the top structure of the polishing base in the present invention.

[0027] In the figure: 1. Grinding base; 11. Lower grinding piece; 12. Annular groove; 2. Grinding top seat; 21. Upper grinding piece; 3. Clamping assembly; 31. Clamping turntable; 311. Clamping hole; 312. Clamping groove; 313. Guide slide; 314. Adjustment slide; 32. Clamping mechanism; 321. Clamping slider; 3211. Mounting groove; 322. Connecting slider; 3221. Transmission slider; 3222. Clamping elastic member; 323, support shaft; 324, transmission shaft; 325, tensioning member; 3251, tensioning column; 3252, guide slider; 3253, tensioning elastic member; 326, transmission belt; 327, guide column; 328, transmission gear; 329, fixed outer ring gear; 33, rotating shaft; 4, grinding motor; 5, grinding mechanism; 51, support column; 52, grinding belt; 6, transformer housing. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-Figure 7 The present invention provides the following technical solutions: a transformer housing polishing device, comprising a polishing base 1, a polishing top seat 2, a clamping assembly 3, a polishing motor 4 and a polishing mechanism 5.

[0030] refer to Figure 1 and Figure 5 As shown, a lower grinding member 11 is fixedly mounted on the top of the grinding base 1. The lower grinding member 11 is an annular grinding wheel and is concentrically arranged with the clamping turntable 31 to ensure uniformity of grinding.

[0031] The grinding top seat 2 is a semicircular plate coaxially arranged with the clamping turntable 31. The grinding top seat 2 is located above the grinding base 1, and an upper grinding member 21 is fixedly mounted on its bottom. This upper grinding member 21 is a semi-annular grinding wheel that corresponds to the lower grinding member 11 and together completes the grinding of the transformer housing 6.

[0032] When polishing the transformer housing 6, it must first be clamped to the clamping assembly 3. Subsequently, the transformer housing 6 begins to rotate, driven by the clamping assembly 3. This rotation causes the top and bottom ends of the transformer housing 6 to rub against the upper polishing piece 21 and the lower polishing piece 11, respectively, thereby polishing the top and bottom of the transformer housing 6.

[0033] refer to Figure 2-Figure 7 As shown, the clamping assembly 3 is located between the polishing base 1 and the polishing top 2. Its main function is to clamp the transformer housing 6 so as to polish it. The clamping assembly 3 specifically includes a clamping turntable 31, a clamping mechanism 32 and a rotating shaft 33.

[0034] refer to Figure 3 and Figure 4 As shown, a clamping hole 311 extending along its axial direction is provided at the top edge of the clamping turntable 31. The transformer housing 6 is placed in the clamping hole 311, and its axis is parallel to the axis of the clamping hole 311. There are at least two clamping holes 311, and these clamping holes 311 are evenly distributed along the circumferential direction of the clamping turntable 31. An opening is provided at the connection between the side wall of each clamping hole 311 and the edge of the clamping turntable 31. This design allows the side wall portion of the transformer housing 6 to extend out of the clamping hole 311 through the opening, which is convenient for subsequent processing operations. In addition, a clamping groove 312 is provided in the middle part of the side wall of each clamping hole 311, which extends radially along the clamping turntable 31 for installing the clamping mechanism 32, and is used to further fix the transformer housing 6.

[0035] The clamping turntable 31 is provided with a plurality of clamping holes 311, which enables the clamping turntable 31 to clamp multiple transformer housings 6 at a time, thereby achieving simultaneous grinding of multiple transformer housings 6. In addition, the side walls of the clamping holes 311 are provided with openings at the junction with the edge of the clamping turntable 31. This design allows the side walls of the transformer housing 6 to fully contact the grinding area of ​​the grinding mechanism 5, thereby ensuring that the side walls of the transformer housing 6 can be effectively ground.

[0036] refer to Figure 4-Figure 7 As shown, the number of clamping mechanisms 32 is consistent with the number of clamping slots 312, that is, each clamping slot 312 is equipped with a corresponding clamping mechanism 32. These clamping mechanisms 32 are independent and have the same structure, specifically including a clamping slider 321, a connecting slider 322, a support shaft 323, a transmission shaft 324, a tensioner 325, a transmission belt 326, a guide column 327, a transmission gear 328, and a fixed outer gear ring 329.

[0037] refer to Figure 4 and Figure 6 As shown, the clamping slider 321 slides in the clamping groove 312 along the radial direction of the clamping turntable 31, and the length direction of the clamping slider 321 is perpendicular to its moving direction. The connecting slider 322 is fixedly mounted on the side of the clamping slider 321 away from the clamping hole 311. The top of the clamping turntable 31 is provided with an adjustment slot 314 extending along its radial direction and connected to the clamping groove 312. The number of the adjustment slots 314 is consistent with the number of the clamping slots 312 and corresponds one to one. A transmission slider 3221 is fixedly mounted on the top of the connecting slider 322, and the top end of the transmission slider 3221 extends into the corresponding adjustment slot 314. A clamping elastic member 3222 is fixedly mounted between the side of the transmission slider 3221 away from the clamping slider 321 and the inner wall of the adjustment slot 314. The clamping elastic member 3222 can be a spring or made of other elastic materials.

[0038] When clamping the transformer housing 6, the transmission slider 3221 is pushed, so that it drives the clamping slider 321 to move along the radial direction of the clamping turntable 31 toward the side away from the clamping hole 311 through the connecting slider 322, and compresses the clamping elastic member 3222. In this way, the transformer housing 6 can be placed into the clamping hole 311 of the clamping turntable 31. Subsequently, the thrust applied to the transmission slider 3221 is stopped. At this time, the elastic force accumulated in the clamping elastic member 3222 due to compression begins to be released, pushing the transmission slider 3221, the connecting slider 322, and the clamping slider 321 to move in opposite directions, thereby pressing the transformer housing 6 against the opening where the side wall of the clamping hole 311 and the edge of the clamping turntable 31 are connected. When pushing the transmission slider 3221, an external automatic telescopic rod can be used as a driving source. The automatic telescopic rod can be a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0039] Mounting slots 3211 are defined at both ends of the sidewall of the clamping slider 321, near the clamping hole 311. Two support shafts 323 are mounted in the two mounting slots 3211, with their axes parallel to the axis of the clamping turntable 31. A transmission shaft 324 is rotatably mounted at the end of the clamping slot 312, away from the clamping hole 311, with its axis also parallel to the axis of the clamping turntable 31. A synchronous toothed belt 326 is wound end-to-end around the outer walls of the transmission shaft 324 and the two support shafts 323. Synchronous teeth are provided on the outer wall of the transmission shaft 324, which mesh with the transmission belt 326. When the clamping slider 321 clamps the transformer housing 6 at the opening of the clamping hole 311, the outer wall of the transmission belt 326 comes into close contact with the outer wall of the transformer housing 6. At this point, when the transmission shaft 324 drives the transmission belt 326 to rotate, the transmission belt 326 in turn drives the transformer housing 6 to rotate.

[0040] When the clamping slider 321 presses the transformer housing 6 to the opening position where the side wall of the clamping hole 311 and the edge of the clamping turntable 31 are connected, the transmission belt 326 is placed between the clamping slider 321 and the transformer housing 6. Subsequently, when the clamping turntable 31 drives the transformer housing 6 to rotate with its own axis as the rotation axis, the transmission shaft 324 can rotate synchronously. This rotational motion is transmitted to the transformer housing 6 through the transmission belt 326, causing it to also rotate, and the rotation direction is consistent with the rotation direction of the clamping turntable 31. In this way, the entire side wall of the transformer housing 6 can be rotated in sequence to the opening position where the side wall of the clamping hole 311 and the edge of the clamping turntable 31 are connected, so that it can be fully polished by the polishing mechanism 5. In addition, by driving the transformer housing 6 to rotate, the polishing effect can be further enhanced.

[0041] At one end of the clamping slot 312, away from the clamping hole 311, symmetrical guide slots 313 are formed on its top and bottom walls. These guide slots 313 are perpendicular to the direction of movement of the clamping slider 321. The tensioning member 325 includes four guide sliders 3252, which are slidably mounted on either end of the two guide slots 313. A tensioning elastic member 3253, which can be a spring or an elastic sheet, is fixedly connected between the two guide sliders 3252 within the same guide slot 313. A tensioning post 3251 is fixedly mounted between the corresponding guide sliders 3252 within the two guide slots 313. Both tensioning posts 3251 contact the inner wall of the transmission belt 326 and automatically adjust the tension of the transmission belt 326 when the clamping slider 321 drives the support shaft 323, ensuring that the transmission belt 326 remains in a constant tensioned state.

[0042] When the clamping slider 321 approaches the clamping hole 311 along the radial direction of the clamping turntable 31, the transmission belt 326 is tightened due to the tension applied to the clamping slider 321 as it moves away from the transmission shaft 324. The tightened transmission belt 326 drives the two tensioning posts 3251 toward each other. Simultaneously, the two guide sliders 3252 located in the same guide slot 313 also move toward each other under the action of the tensioning posts 3251, compressing the tensioning elastic member 3253. Conversely, when the clamping slider 321 moves away from the clamping hole 311 along the radial direction of the clamping turntable 31, the transmission belt 326 loosens due to the clamping slider 321 moving toward the transmission shaft 324, and no longer exerts external force on the tensioning posts 3251. At this time, the tensioning elastic member 3253 begins to release its elastic force, driving the two guide sliders 3252 located in the same guide slot 313 away from each other, and then driving the two tensioning columns 3251 away from each other, tensioning the transmission belt 326 to prevent it from loosening.

[0043] The axis of the guide post 327 extends radially along the clamping turntable 31, and the two ends of the guide post 327 are fixedly mounted on the inner wall of the adjustment slot 314. The connecting slider 322 is slidably mounted on the outer wall of the guide post 327, and the clamping elastic member 3222 is also slidably mounted on the outer wall of the guide post 327.

[0044] refer to Figure 5 and Figure 7 As shown, the top wall of the grinding base 1 defines a concentric annular groove 12. A fixed outer ring gear 329 is fixedly mounted on the inner annular wall of the annular groove 12, and the two are concentrically arranged. A transmission gear 328 meshes with the fixed outer ring gear 329. The bottom end of the transmission shaft 324 extends through the clamping turntable 31 and into the annular groove 12, where it is fixedly connected to the top end of the transmission gear 328. The transmission shaft 324 and the transmission gear 328 are coaxially arranged.

[0045] While the clamping turntable 31 rotates the transformer housing 6 about its own axis, the drive shaft 324, driven by the clamping turntable 31, also rotates the transmission gear 328 along the circumference of the fixed outer ring gear 329. Because the transmission gear 328 meshes with the fixed outer ring gear 329, the transmission gear 328, guided by the fixed outer ring gear 329, drives the transmission shaft 324 in rotation. Therefore, the rotation of the clamping turntable 31 simultaneously drives the transmission shaft 324 in rotation, without requiring a separate drive source.

[0046] The rotating shaft 33 is rotatably mounted on the bottom of the grinding top seat 2 and is coaxially arranged with the clamping turntable 31 . The bottom end of the rotating shaft 33 passes through the clamping turntable 31 and is rotatably connected to the grinding base 1 . The clamping turntable 31 is fixedly connected to the outer wall of the rotating shaft 33 .

[0047] refer to Figure 1 and Figure 5 As shown, the grinding motor 4 is fixedly mounted on the top of the grinding top seat 2 , and the top of the rotating shaft 33 passes through the grinding top seat 2 and is transmission-connected to the output shaft of the grinding motor 4 .

[0048] refer to Figure 2 As shown, the grinding mechanism 5 includes a support column 51 and a grinding belt 52. There are multiple support columns 51, and the multiple support columns 51 are evenly arranged in a semi-circular shape along the circumferential direction of the clamping turntable 31 between the grinding base 1 and the grinding top seat 2. The top and bottom of the support column 51 are fixedly connected to the grinding top seat 2 and the grinding base 1 respectively. The grinding belt 52 surrounds the outer walls of the multiple support columns 51, and the outer wall of one side of the grinding belt 52 contacts the outer wall of the clamping turntable 31.

[0049] When the transformer housing 6 rotates until it contacts the abrasive belt 52, it applies an external force to the transformer housing 6, causing it to move slightly radially toward the center of the clamping turntable 31. This movement reduces the friction between the transformer housing 6 and the inner wall of the clamping hole 311, allowing the transformer housing 6 to rotate more smoothly. Furthermore, the abrasive belt 52 can more effectively polish the sidewalls of the transformer housing 6.

[0050] The working principle of the embodiment of the present invention is as follows: During the grinding process of the transformer housing 6, the transmission slider 3221 is first pushed along the axis of the guide post 327 toward the center of the clamping turntable 31. At this point, the transmission slider 3221 compresses the clamping elastic member 3222 and, through the connecting slider 322, drives the clamping slider 321 to slide radially along the clamping turntable 31 toward its center. Next, the transformer housing 6 is placed into the clamping hole 311. Then, the transmission slider 3221 is released. Under the elastic force of the clamping elastic member 3222, the transmission slider 3221 reverses its movement and resets. Simultaneously, through the connecting slider 322, it drives the clamping slider 321 to slide radially along the clamping turntable 31 away from its center, thereby pressing the transformer housing 6 against the opening of the clamping hole 311. The clamping turntable 31 is then rotated, and the above process is repeated until all clamping holes 311 are clamped with transformer housings 6.

[0051] The polishing motor 4 is started, rotating the clamping turntable 31 via the rotating shaft 33. At this point, as the clamping turntable 31 rotates, the transformer housing 6 on it also rotates synchronously. The top and bottom ends of the transformer housing 6 generate friction with the upper polishing member 21 and the lower polishing member 11, respectively, enabling the upper polishing member 21 and the lower polishing member 11 to polish the top and bottom ends of the transformer housing 6. Simultaneously, as the clamping turntable 31 rotates, it drives the transmission shaft 324 to rotate synchronously with it. Because the transmission gear 328 fixedly mounted at the bottom of the transmission shaft 324 meshes with the fixed outer ring gear 329 fixedly mounted within the annular groove 12, the transmission gear 328, meshing with the fixed outer ring gear 329, drives the transmission shaft 324 to rotate. At this point, the transmission shaft 324 drives the transformer housing 6 to rotate via the transmission belt 326, and the rotation direction is the same as that of the clamping turntable 31. As the clamping turntable 31 and the transformer housing 6 rotate, the side wall of the transformer housing 6 and the grinding belt 52 generate friction, so that the grinding belt 52 can grind the side wall of the transformer housing 6 in all directions.

[0052] During the clamping, disassembly, and polishing of the transformer housing 6, the clamping slider 321 moves radially along the clamping turntable 31. When the clamping slider 321 moves away from the transmission shaft 324, the transmission belt 326 drives the two tensioning posts 3251 toward each other. At this point, the two guide sliders 3252 located in the same guide slot 313 move toward each other under the action of the two tensioning posts 3251, compressing the tensioning elastic member 3253. When the clamping slider 321 approaches the transmission shaft 324, the transmission belt 326 no longer applies pressure to the tensioning posts 3251. At this point, the two guide sliders 3252 located in the same guide slot 313 move away from each other under the elastic force of the tensioning elastic member 3253. At the same time, the two tensioning columns 3251 are synchronously moved away from each other under the drive of the guide slider 3252, so that the tensioning columns 3251 tighten the transmission belt 326 to prevent the transmission belt 326 from loosening, thereby ensuring that it can normally drive the transformer housing 6 to rotate.

[0053] Although the embodiments of the present invention have been shown and described above, it will be appreciated that the above embodiments are illustrative only and are not to be construed as limiting the present invention.

Claims

1. A transformer housing polishing device, comprising a polishing base (1) and a polishing top seat (2), characterized in that: A clamping assembly (3) is provided between the grinding base (1) and the grinding top seat (2), a grinding mechanism (5) is provided on the outer side of the clamping assembly (3), the clamping assembly (3) comprises a clamping turntable (31), a clamping hole (311) extending along the axial direction of the clamping turntable (31) is provided at the top edge of the clamping turntable (31), an opening is provided at the connection between the side wall of the clamping hole (311) and the edge of the clamping turntable (31), a clamping groove (312) extending along the radial direction of the clamping turntable (31) is provided in the middle of the side wall of the clamping hole (311), and a clamping mechanism (32) is provided in the clamping groove (312); The clamping mechanism (32) includes a clamping slider (321) that slides radially along the clamping turntable (31), a connecting slider (322) is provided on the side of the clamping slider (321) away from the clamping hole (311), an adjusting slot (314) extending radially thereof and connected to the clamping slot (312) is provided on the top of the clamping turntable (311), a guide column (327) whose axis extends radially along the clamping turntable (311) is fixedly installed on the inner wall of the adjusting slot (314), a transmission slider (3221) that is slidably sleeved on the outer wall of the guide column (327) is fixedly installed on the top of the connecting slider (322), and a clamping elastic member (3222) that is sleeved on the outer wall of the guide column (327) is fixedly installed between the side of the transmission slider (3221) away from the clamping slider (321) and the inner wall of the adjusting slot (314).

2. A transformer housing polishing device according to claim 1, characterized in that: There are at least two clamping holes (311), and the plurality of clamping holes (311) are evenly distributed along the circumferential direction of the clamping turntable (31).

3. A transformer housing polishing device according to claim 2, characterized in that: The clamping slider (321) is provided with mounting grooves (3211) at both ends of the side wall close to the clamping hole (311), and a support shaft (323) whose axis is parallel to the axis of the clamping turntable (31) is installed in each of the two mounting grooves (3211). A transmission shaft (324) whose axis is parallel to the axis of the clamping turntable (31) is rotatably installed at one end of the clamping groove (312) away from the clamping hole (311), and a transmission belt (326) is connected between the transmission shaft (324) and the outer walls of the two support shafts (323). A tensioning member (325) for tensioning the transmission belt (326) is installed at one end of the clamping groove (312) away from the clamping hole (311).

4. A transformer housing polishing device according to claim 3, characterized in that: The top wall and bottom wall of one end of the clamping groove (312) away from the clamping hole (311) are symmetrically provided with guide grooves (313) perpendicular to the moving direction of the clamping slider (321). The tensioning member (325) includes four guide sliders (3252). The four guide sliders (3252) are slidably installed at the two ends of the two guide grooves (313). A tensioning elastic member (3253) is fixedly connected between the two guide sliders (3252) in the same guide groove (313). A tensioning column (3251) is fixedly installed between the corresponding guide sliders (3252) in the two guide grooves (313). Both of the two tensioning columns (3251) are in contact with the inner wall of the transmission belt (326).

5. The transformer housing polishing device according to claim 3, characterized in that: The top wall of the grinding base (1) is provided with an annular groove (12) concentric therewith, and a fixed outer gear ring (329) concentrically arranged therewith is fixedly mounted on the annular inner wall of the annular groove (12). The bottom end of the transmission shaft (324) passes through the clamping turntable (31) and then extends into the annular groove (12) and is fixedly mounted with a transmission gear (328), and the transmission gear (328) is meshedly connected with the fixed outer gear ring (329).

6. The transformer housing polishing device according to claim 1, characterized in that: The grinding mechanism (5) includes a supporting column (51) and a grinding belt (52), wherein there are a plurality of supporting columns (51), and the plurality of supporting columns (51) are evenly arranged in a semi-circular shape between the grinding base (1) and the grinding top seat (2) along the circumferential direction of the clamping turntable (31), and the top and bottom of the supporting columns (51) are fixedly connected to the grinding top seat (2) and the grinding base (1) respectively, and the grinding belt (52) surrounds the outer walls of the plurality of supporting columns (51), and the outer wall of one side of the grinding belt (52) contacts the outer wall of the clamping turntable (31).

7. The transformer housing polishing device according to claim 1, characterized in that: A lower grinding piece (11) is fixedly mounted on the top of the grinding base (1). The lower grinding piece (11) is an annular grinding wheel and is concentrically arranged with the clamping turntable (31). The lower grinding piece (11) is located below the clamping hole (311).

8. The transformer housing polishing device according to claim 7, characterized in that: The grinding top seat (2) is a semicircular plate and is coaxially arranged with the clamping turntable (31). An upper grinding piece (21) is fixedly installed at the bottom of the grinding top seat (2). The upper grinding piece (21) is a semi-annular grinding wheel. The upper grinding piece (21) corresponds to the lower grinding piece (11).

9. The transformer housing polishing device according to claim 8, characterized in that: A grinding motor (4) is fixedly mounted on the top of the grinding top seat (2), and a rotating shaft (33) coaxially arranged with the clamping turntable (31) is rotatably mounted on the bottom of the grinding top seat (2). The bottom end of the rotating shaft (33) passes through the clamping turntable (31) and is rotatably connected to the grinding base (1). The clamping turntable (31) is fixedly connected to the outer wall of the rotating shaft (33). The top of the rotating shaft (33) passes through the grinding top seat (2) and is transmission-connected to the output shaft of the grinding motor (4).

10. The transformer housing polishing device according to claim 4, characterized in that: The clamping elastic member (3222) and the tensioning elastic member (3253) are both springs.

Images