An electrical box cover edge polishing apparatus

Abstract

This utility model discloses an edge grinding device for electrical appliance enclosure covers, relating to the field of electrical appliance enclosure manufacturing technology. The device includes a frame, with a grinding mechanism mounted on top of the frame: a conveying assembly positioned above the frame for conveying the enclosure cover; and a limiting assembly including a vacuum pump fixedly mounted on the front of the frame. An inlet pipe is fixedly mounted on the inlet end of the vacuum pump, and a filter box is fixedly mounted on the rear end of the inlet pipe. A filter plate is fitted inside the filter box. A diverter pipe is fixedly mounted on the exhaust end of the vacuum pump. The exhaust end of the vacuum pump supplies air to a vacuum suction cup on the limiting plate through the diverter pipe and the inlet hose. Simultaneously, the inlet end creates a low pressure inside the filter box through the inlet pipe, generating negative pressure in the contact area between the vacuum suction cup and the enclosure cover, firmly adhering the enclosure cover above the limiting plate, effectively preventing the enclosure cover from shifting due to force during the grinding process.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliance enclosure manufacturing technology, specifically to an electrical appliance enclosure cover edge grinding device. Background Technology

[0002] Electrical enclosure covers are generally made of sheet metal. Sheet metal has the advantages of being lightweight, low-cost, and high-performance. In the production and processing of sheet metal, the whole sheet needs to be cut first, and then the cut sheet needs to be processed by sheet metal technology. However, after cutting the sheet, burrs are easily generated at the edges of the sheet metal. In order to improve the appearance of the sheet metal and product quality, and also to prevent the processing workers from being scratched by burrs, the edges of the sheet metal need to be ground.

[0003] The existing utility model patent with publication number CN216399039U discloses a sheet metal edge grinding device. The technical problem this solution aims to solve is the inability to promptly clean up metal shavings after grinding. The device includes a housing with an inlet and an outlet. A conveyor belt is located in the middle of the housing, passing through the inlet and outlet. A grinding disc is positioned above the conveyor belt, and grinding rollers are positioned to the side of the grinding disc. The grinding disc is mounted on the top wall of the housing via a mounting plate. Openings are spaced along the conveyor belt. The beneficial effects of this solution are: the openings on the conveyor belt allow for timely removal of metal shavings from the housing, and the grinding rollers enable secondary grinding of the sheet metal parts, while also cleaning up metal shavings adhering to the surface of the sheet metal parts.

[0004] In the aforementioned grinding device, sheet metal parts are only transported via a conveyor belt without a dedicated positioning mechanism. When the sheet metal parts are of different sizes or are subjected to grinding force during transport, they are prone to misalignment, causing the grinding disc and grinding roller to fail to accurately align with the edge burrs, resulting in incomplete or over-grinding. At the same time, the device cannot collect metal debris, causing it to scatter to the outside under the influence of the grinding disc. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an appliance cabinet cover edge grinding device, which solves the problems of metal shavings spreading and sheet metal parts easily shifting during the grinding process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an appliance cabinet cover edge grinding device includes a frame, and a grinding mechanism is arranged above the frame.

[0007] A conveyor assembly, located above the frame, is used to convey the box cover;

[0008] The limiting assembly includes a vacuum pump fixedly installed on the front side of the frame, an air inlet pipe fixedly installed at the air inlet end of the vacuum pump, a filter box fixedly installed at the rear end of the air inlet pipe, a filter plate fitted inside the filter box, a diverter pipe fixedly installed at the exhaust end of the vacuum pump, an air inlet hose installed above the diverter pipe, a limiting plate movably installed above the frame, and a vacuum suction cup inserted above the limiting plate.

[0009] The cleaning component, located above the rack, is used to polish the edges of the housing cover.

[0010] Preferably, the conveying assembly includes a conveying motor fixedly installed on one side of the frame, and conveying shafts on the front and rear sides of the frame. Conveyor belts are fitted on both sides of the conveying shafts, and the conveyor belts are symmetrically installed on both sides of the conveying shafts. The conveying shafts and the frame are rotatably connected.

[0011] Preferably, the cleaning assembly includes a transmission piston fitted and mounted on both sides of the frame. A movable frame is fixedly mounted on the movable end of the transmission piston. A rodless cylinder is fixedly mounted on the top of the movable frame. A mounting bracket is fixedly mounted on one side of the slider of the rodless cylinder. A drive assembly is provided above the mounting bracket. A movable plate is movably mounted on one side of the mounting bracket. A synchronous shaft is inserted above the movable plate. A limit shaft is installed below the movable plate. A grinding belt is fitted and mounted on the outer side of the limit shaft and the synchronous shaft. A telescopic rod is hinged to one side of the movable plate. A spring is inserted and mounted on the outer side of the telescopic rod. A collection groove is fixedly mounted below the mounting bracket. A limit tube is inserted and mounted below the collection groove. A chip removal hose is fixedly mounted at the bottom end of the limit tube. A cleaning plate is fixedly mounted below the mounting bracket. A support frame is fixedly mounted on the inner side of the frame.

[0012] Preferably, there are two limiting plates, which are slidably connected to the frame. Bolts are inserted and installed at both ends of the limiting plates. Vacuum suction cups are symmetrically installed on the upper part of the limiting plates, and the vacuum generators of the vacuum suction cups at both ends of the front and rear limiting plates are connected through air inlet hoses. The vacuum suction cup above the front limiting plate of the frame is connected to the split pipe through an air inlet hose.

[0013] Preferably, the support frame has columnar structures on both sides, the movable frame is slidably connected to the columnar structures on both sides of the support frame, a counterweight is fixedly connected to one side of the mounting frame, the movable plate is rotatably connected to the mounting frame through a synchronous shaft, and the synchronous shaft, the limiting shaft and the movable plate are all rotatably connected.

[0014] Preferably, one end of the telescopic rod is hinged to the movable plate, and the other end is hinged to the mounting frame. The collection trough is located directly below the grinding belt. The limiting tube passes through the top of the movable frame and is located at the center of the bottom of the collection trough. The bottom end is connected to the filter box through the chip removal hose. The cleaning plate is provided with a brush structure at the contact end with the grinding belt. The support frame is symmetrically installed on the front and rear sides of the frame.

[0015] Beneficial effects

[0016] This utility model provides a grinding device for the edge of an appliance cabinet cover. Compared with the prior art, it has the following advantages:

[0017] (1) The edge grinding equipment for the electrical box cover, through the setting of the transmission piston, pushes the movable frame to slide along the columnar structure of the support frame towards the box cover, so that the grinding strip on the outside of the movable plate contacts the two sides of the box cover, forming a clamping of the box cover, ensuring that the box cover is centered and completing the initial mechanical fixation. After the box cover is clamped stably, the vacuum pump starts, and the exhaust end of the vacuum pump supplies air to the vacuum suction cup on the limit plate through the diversion pipe and the air inlet hose. At the same time, the air inlet end forms a low pressure in the filter box through the air inlet pipe, generating negative pressure in the contact area between the vacuum suction cup and the box cover, firmly adsorbing the box cover above the limit plate, effectively preventing the box cover from shifting due to force during the grinding process.

[0018] (2) The edge grinding equipment for the electrical enclosure cover, through the setting of a vacuum pump, generates debris by grinding the edge of the enclosure cover with a grinding belt. The cleaning plate under the mounting frame continuously contacts the grinding belt through a brush structure, and sweeps off the debris attached to the surface as the grinding belt rotates. Since the drive components on both sides have clamped to ensure the precise position of the enclosure cover, the contact position between the grinding belt and the edge of the enclosure cover is stable, allowing the debris to fall accurately into the collection tank directly below the grinding belt. The bottom of the collection tank is connected to the filter box through a limiting tube and a chip removal hose. The filter box is connected to the air inlet pipe of the vacuum pump. When the vacuum pump is working, the negative pressure formed in the filter box will drive the air and debris in the collection tank into the filter box through the chip removal hose. The filter plate in the filter box intercepts the debris in the airflow, preventing it from spreading with the airflow or entering the vacuum pump. The active cleaning of the cleaning plate, the precise receiving of the collection tank, the directional delivery of negative pressure, and the final interception of the filter plate work together to completely solve the problem of metal debris diffusion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the filter box installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rodless cylinder mounting structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the grinding belt of this utility model;

[0023] In the diagram: 1. Frame; 2. Grinding mechanism; 21. Conveying assembly; 211. Conveying motor; 212. Conveying shaft; 213. Conveying belt; 22. Limiting assembly; 221. Vacuum pump; 222. Inlet pipe; 223. Filter box; 224. Filter plate; 225. Diverter pipe; 226. Inlet hose; 227. Limiting plate; 228. Vacuum suction cup; 23. Cleaning assembly; 231. Transmission piston; 232. Movable frame; 233. Rodless cylinder; 234. Mounting frame; 235. Drive assembly; 236. Movable plate; 237. Synchronous shaft; 238. Limiting shaft; 239. Grinding belt; 2310. Telescopic rod; 2311. Spring; 2312. Collection trough; 2313. Limiting pipe; 2314. Chip removal hose; 2315. Cleaning plate; 2316. Support frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an appliance cabinet cover edge grinding device includes a frame 1, and a grinding mechanism 2 is arranged above the frame 1.

[0026] The conveying assembly 21 is disposed above the frame 1 for conveying the box cover. The conveying assembly 21 includes a conveying motor 211 fixedly installed on one side of the frame 1, and conveying shafts 212 on the front and rear sides of the frame 1. Conveyor belts 213 are fitted on both sides of the conveying shafts 212. The conveyor belts 213 are symmetrically installed on both sides of the conveying shafts 212. The conveying shafts 212 and the frame 1 are rotatably connected.

[0027] Specifically, the conveyor motor 211 can drive the conveyor shaft 212 to rotate, thereby driving the conveyor belt 213 on the outside of the conveyor shaft 212 to rotate. The conveyor belt 213 is symmetrically installed at both ends of the conveyor shaft 212 so as to leave space for the installation of the vacuum suction cup 228 in the center.

[0028] The limiting assembly 22 includes a vacuum pump 221 fixedly installed on the front side of the frame 1. An air inlet pipe 222 is fixedly installed at the air inlet end of the vacuum pump 221. A filter box 223 is fixedly installed at the rear end of the air inlet pipe 222. A filter plate 224 is fitted inside the filter box 223. A diverter pipe 225 is fixedly installed at the exhaust end of the vacuum pump 221. An air inlet hose 226 is installed above the diverter pipe 225. A limiting plate 227 is movably installed on the top of the frame 1. A device passes through the top of the limiting plate 227. The machine is equipped with vacuum suction cups 228 and two limiting plates 227. The limiting plates 227 are slidably connected to the frame 1. Bolts are inserted and installed at both ends of the limiting plates 227. The vacuum suction cups 228 are symmetrically installed on the upper part of the limiting plates 227. The vacuum generators of the vacuum suction cups 228 at both ends of the limiting plates 227 on the front and rear sides are connected through air inlet hoses 226. The vacuum suction cups 228 above the limiting plates 227 on the front side of the frame 1 are connected to the split pipes 225 through air inlet hoses 226.

[0029] Specifically, after the vacuum pump 221 is started, it can extract the air inside the air inlet pipe 222. The air inlet pipe 222 is connected to the filter box 223, thereby reducing the air pressure inside the filter box 223. The filter plate 224 can filter the metal debris carried in the airflow. The diverter pipe 225 can facilitate the gas discharged by the vacuum pump 221 to enter the vacuum suction cups 228 on the left and right sides of the limiting plate 227 respectively. Since the vacuum suction cups 228 at both ends of the front and rear limiting plates 227 are connected by the air inlet hose 226, after the compressed air enters the vacuum generator of the vacuum suction cup 228, a low-pressure area will be formed in the space between the vacuum suction cup 228 and the box cover, thereby adsorbing the box cover above the vacuum suction cup 228.

[0030] Cleaning assembly 23, located above frame 1, is used for polishing the edge of the housing cover. Cleaning assembly 23 includes a transmission piston 231 fitted onto both sides of frame 1. A movable frame 232 is fixedly mounted on the movable end of the transmission piston 231. A rodless cylinder 233 is fixedly mounted on the top of the movable frame 232. A mounting bracket 234 is fixedly mounted on one side of the slider of the rodless cylinder 233. A drive assembly 235 is located above the mounting bracket 234. A movable plate 236 is movably mounted on one side of the mounting bracket 234. A synchronous shaft 237 is inserted above the movable plate 236, and a limiting shaft 238 is installed below the movable plate 236. A grinding belt 239 is fitted onto the outer side of the limiting shaft 238 and the synchronous shaft 237. A telescopic rod 2310 is hinged to one side of the movable plate 236, and a spring 2311 is inserted onto the outer side of the telescopic rod 2310. A collection groove 2312 is fixedly installed below the mounting bracket 234, and a limiting tube 2313 is inserted into the lower part of the collection groove 2312. The bottom end of the limiting tube 2313 is fixedly installed... The machine is equipped with a chip removal hose 2314. A cleaning plate 2315 is fixedly installed below the mounting frame 234. A support frame 2316 is fixedly installed on the inner side of the frame 1. Columnar structures are provided on both sides of the support frame 2316. A sliding connection is formed between the movable frame 232 and the columnar structures on both sides of the support frame 2316. A counterweight is fixedly connected to one side of the mounting frame 234. The movable plate 236 is rotatably connected to the mounting frame 234 via a synchronous shaft 237. The synchronous shaft 237, the limit shaft 238, and the movable plate 2315 are connected to the mounting frame 234. All 36 are rotatably connected. One end of the telescopic rod 2310 is hinged to the movable plate 236, and the other end is hinged to the mounting frame 234. The collection trough 2312 is located directly below the grinding belt 239. The limiting tube 2313 passes through the top of the movable frame 232 and is located at the bottom center of the collection trough 2312. The bottom end is connected to the filter box 223 through the chip removal hose 2314. The cleaning plate 2315 is provided with a brush structure at the contact end with the grinding belt 239. The support frame 2316 is symmetrically installed on the front and rear sides of the frame 1.

[0031] Specifically, the columnar structures on both sides of the support frame 2316 support the movable frame 232 while allowing it to slide. The spacing of the movable frame 232 is adjusted by the transmission piston 231, thereby adjusting the position of the grinding belt 239 relative to the edge of the housing cover. The rodless cylinder 233 drives the mounting frame 234 to move back and forth, causing the grinding belt 239 to slide back and forth along both sides of the housing cover to grind the edge of the housing cover. The drive assembly 235 includes a motor, transmission wheels, and a synchronous belt. The lower transmission wheels are located at the front and rear ends of the synchronous shaft 237. The motor drives the synchronous shaft 237 to rotate synchronously via the transmission wheel, thereby causing the grinding belt 239, which is fitted and mounted on the outside of the synchronous shaft 237, to rotate. The position of the bottom end of the grinding belt 239 is limited by the limiting shaft 238, keeping the grinding belt 239 in a taut state at all times. The spring 2311 facilitates the return of the telescopic rod 2310. As the movable frame 232 moves towards the edge of the housing cover, the grinding belt 239 compresses the telescopic rod 2310 after contacting the edge of the housing cover, causing the telescopic rod 2310 to rotate. At the same time, the spring 2311 is compressed. When 2311 retracts, the elastic force applied to the telescopic rod 2310 keeps the polishing belt 239 tightly against the edge of the housing cover, maintaining a certain relative pressure between the polishing belt 239 and the edge of the housing cover for polishing. Since one end of the cleaning plate 2315 is equipped with a brush structure, when the polishing belt 239 rotates, the metal shavings trapped on its surface will be dislodged by the brush and fall into the collection groove 2312 below. The limiting tube 2313 is made of rubber to accommodate the movement of the mounting frame 234 and the movable frame 232. Due to the change in position, since the lower end of the limiting tube 2313 at the bottom of the collection tank 2312 is connected to the filter box 223 through the chip removal hose 2314, after the vacuum pump 221 is started, the air pressure inside the filter box 223 decreases, and the outside air will enter the limiting tube 2313 through the top of the center limiting tube 2313 at the bottom of the collection tank 2312, and enter the filter box 223 through the chip removal hose 2314. The filter plate 224 inside the filter box 223 intercepts the metal debris carried in the airflow to prevent the metal debris from entering the vacuum pump 221.

[0032] Specifically, the conveyor motor 211 is model YE3, the vacuum pump 221 is model RB-41DH-1, the transmission piston 231 is model DDT-55, the rodless cylinder 233 is model RMH, and the motor in the drive assembly 235 is model TC5GN. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] During operation, the conveyor motor 211 starts, driving the conveyor shafts 212 on both sides of the frame 1 to rotate. The conveyor belts 213 on both sides of the conveyor shafts 212 rotate accordingly, conveying the electrical enclosure cover to the working area of ​​the grinding mechanism 2. According to the size of the enclosure cover, the positions of the two limit plates 227 on the top of the frame 1 are adjusted by sliding and fixed by bolts at both ends. Then, the vacuum pump 221 starts. Its air inlet end reduces the air pressure inside the filter box 223 through the air inlet pipe 222, and its exhaust end supplies air to the vacuum generator of the vacuum suction cup 228 through the diverter pipe 225 and the air inlet hose 226, causing the vacuum suction cup to... A low-pressure area is formed between 228 and the housing cover, which magnetically fixes the housing cover above the limiting plate 227 to prevent it from shifting during grinding. The transmission pistons 231 on both sides of the frame 1 actuate, causing the movable frame 232 to slide along the cylindrical structure on both sides of the support frame 2316, adjusting the lateral distance between the grinding belt 239 and the edge of the housing cover. At the same time, the rodless cylinder 233 is activated, and its slider drives the mounting frame 234 to move back and forth, so that the grinding belt 239 is aligned with the grinding path of the edge of the housing cover. The drive assembly 235 above the mounting frame 234 is activated, driving the synchronous shaft 237 to rotate through the transmission structure. The grinding belt 239 on the outer side of the synchronous shaft 237 and the limiting shaft 238 rotates with them; when the grinding belt 239 contacts the edge of the housing cover, it pushes the movable plate 236 to rotate around the synchronous shaft 237, and the telescopic rod 2310 hinged to the movable plate 236 is compressed, and the spring 2311 on its outer side contracts accordingly. The elastic force generated by the contraction of the spring 2311 pushes the movable plate 236 back, so that the grinding belt 239 always keeps close to the edge of the housing cover. At the same time, the rodless cylinder 233 drives the mounting bracket 234 to move back and forth, driving the grinding belt 239 to move along the edge of the housing cover to complete the edge burr grinding; after grinding During the process, the cleaning plate 2315 below the mounting frame 234 contacts the grinding belt 239 through the brush structure to clean the debris attached to its surface. The debris falls into the collection tank 2312 directly below. Under the negative pressure of the filter box 223, the debris enters the filter box 223 through the limiting tube 2313 and the chip discharge hose 2314 at the bottom of the collection tank 2312 and is filtered and intercepted by the filter plate 224. After the grinding is completed, the vacuum pump 221 stops working, the vacuum suction cup 228 releases the box cover, the conveying component 21 starts again, and the conveyor belt 213 transports the processed box cover to the next process.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrical cabinet cover edge grinding apparatus comprising a frame (1), characterized in that: A grinding mechanism (2) is provided above the frame (1): A conveying assembly (21) is disposed above the frame (1) for conveying the box cover; The limiting assembly (22) includes a vacuum pump (221) fixedly installed on the front side of the frame (1), an air inlet pipe (222) fixedly installed at the air inlet end of the vacuum pump (221), a filter box (223) fixedly installed at the rear end of the air inlet pipe (222), a filter plate (224) fitted inside the filter box (223), a diverter pipe (225) fixedly installed at the exhaust end of the vacuum pump (221), an air inlet hose (226) installed above the diverter pipe (225), a limiting plate (227) movably installed above the frame (1), and a vacuum suction cup (228) inserted above the limiting plate (227). Cleaning component (23) is located above the frame (1) for polishing the edge of the housing cover.

2. An electrical enclosure cover edge grinding apparatus as defined in claim 1, wherein: The conveying assembly (21) includes a conveying motor (211) fixedly installed on one side of the frame (1), and conveying shafts (212) on the front and rear sides of the frame (1). Conveyor belts (213) are fitted on both sides of the conveying shafts (212). The conveyor belts (213) are symmetrically installed on both sides of the conveying shafts (212). The conveying shafts (212) and the frame (1) are rotatably connected.

3. An electrical box cover edge grinding apparatus as described in claim 1, wherein: The cleaning assembly (23) includes a transmission piston (231) fitted onto both sides of the frame (1). A movable frame (232) is fixedly mounted on the movable end of the transmission piston (231). A rodless cylinder (233) is fixedly mounted on the top of the movable frame (232). A mounting bracket (234) is fixedly mounted on one side of the slider of the rodless cylinder (233). A drive assembly (235) is disposed above the mounting bracket (234). A movable plate (236) is movably mounted on one side of the mounting bracket (234). A synchronous shaft (237) is inserted above the movable plate (236). A limit shaft (238) is installed below the movable plate (236). A grinding belt (239) is fitted onto the outer side of the limiting shaft (238) and the synchronous shaft (237). A telescopic rod (2310) is hinged to one side of the movable plate (236). A spring (2311) is inserted through the outer side of the telescopic rod (2310). A collection groove (2312) is fixedly installed below the mounting frame (234). A limiting tube (2313) is inserted through the lower part of the collection groove (2312). A chip removal hose (2314) is fixedly installed at the bottom end of the limiting tube (2313). A cleaning plate (2315) is fixedly installed below the mounting frame (234). A support frame (2316) is fixedly installed on the inner side of the frame (1).

4. The electrical box cover edge sanding apparatus of claim 1, wherein: There are two limiting plates (227). The limiting plates (227) are slidably connected to the frame (1). Bolts are inserted and installed at both ends of the limiting plates (227). The vacuum suction cups (228) are symmetrically installed on the upper part of the limiting plates (227). The vacuum generators of the vacuum suction cups (228) at both ends of the limiting plates (227) on the front and rear sides are connected through the air inlet hose (226). The vacuum suction cup (228) above the limiting plate (227) on the front side of the frame (1) is connected to the split pipe (225) through the air inlet hose (226).

5. An electrical box cover edge grinding apparatus as described in claim 3, wherein: The support frame (2316) has columnar structures on both sides. The movable frame (232) and the columnar structures on both sides of the support frame (2316) are slidably connected. A counterweight is fixedly connected to one side of the mounting frame (234). The movable plate (236) is rotatably connected to the mounting frame (234) through the synchronous shaft (237). The synchronous shaft (237), the limiting shaft (238) and the movable plate (236) are all rotatably connected.

6. An electrical box cover edge grinding apparatus as described in claim 3, wherein: One end of the telescopic rod (2310) is hinged to the movable plate (236), and the other end is hinged to the mounting frame (234). The collection groove (2312) is located directly below the grinding belt (239). The limiting tube (2313) passes through the top of the movable frame (232) and is located at the center of the bottom of the collection groove (2312). The bottom end is connected to the filter box (223) through the chip removal hose (2314). The cleaning plate (2315) is provided with a brush structure at the contact end with the grinding belt (239). The support frame (2316) is symmetrically installed on the front and rear sides of the frame (1).

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