A circuit breaker plastic shell finishing equipment

Abstract

The application relates to the technical field of circuit breaker plastic shells, and discloses a circuit breaker plastic shell finishing equipment which comprises a bottom plate, a positioning structure for placing the circuit breaker plastic shell, a clamping structure for clamping the circuit breaker plastic shell and a polishing structure for polishing the circuit breaker plastic shell are arranged on the bottom plate; the polishing structure comprises an operation plate arranged on the bottom plate, the operation plate is provided with a polishing assembly, the polishing assembly comprises two operation columns arranged on the operation plate and a first winding roller and a second winding roller rotatably connected to the operation plate, the first winding roller and the second winding roller are located between the two operation columns, a polishing belt is wound on the first winding roller, the polishing belt is wound on the second winding roller after sequentially passing through the two operation columns, the rotating direction of the first winding roller for winding the polishing belt is the same as the rotating direction of the second winding roller for unwinding the polishing belt, and the operation plate is provided with a polishing driving piece for driving the first winding roller and the second winding roller to synchronously rotate, and the application has the effect of improving the production efficiency of the circuit breaker plastic shell.

Description

Technical Field

[0001] This application relates to the technical field of circuit breaker molded cases, and in particular to a precision machining equipment for circuit breaker molded cases. Background Technology

[0002] The circuit breaker molded case is the outer shell of the circuit breaker, used to isolate conductors from each other and to ground the metal parts.

[0003] Circuit breaker molded cases in related technologies, such as Figure 1 As shown, the device includes a housing 5, which has a switch hole 51 for the switch button to pass through. The switch hole 51 is elongated and the housing 5 also has an installation hole 52.

[0004] The circuit breaker housing is molded using a compression molding machine, but burrs protrude from the molded housing 5, especially on the inner wall of the switch hole 51. These burrs make it difficult for the switch button to move within the switch hole 51. Since the switch hole 51 is elongated, the existing burrs on the housing 5 are manually removed by workers, resulting in low production efficiency and thus requiring improvement. Summary of the Invention

[0005] To improve the production efficiency of circuit breaker molded case processing, this application provides a circuit breaker molded case precision processing equipment.

[0006] This application provides a precision machining equipment for molded circuit breaker cases, which adopts the following technical solution:

[0007] A circuit breaker molded case finishing equipment includes a base plate. The base plate is provided with a positioning structure for placing the circuit breaker molded case, a clamping structure for holding the circuit breaker molded case, and a grinding structure for grinding the circuit breaker molded case. The grinding structure includes an operating plate on the base plate, and a grinding assembly on the operating plate. The grinding assembly includes two operating columns on the operating plate and a first take-up roller and a second take-up roller rotatably connected to the operating plate. The first and second take-up rollers are located between the two operating columns. A grinding strip is wound on the first take-up roller. The grinding strip passes around the two operating columns in sequence and then winds onto the second take-up roller. The rotation direction of the first take-up roller when winding the grinding strip is the same as the rotation direction of the second take-up roller when releasing the grinding strip. The operating plate is provided with a grinding drive component that drives the first and second take-up rollers to rotate synchronously.

[0008] By adopting the above technical solution, the circuit breaker molded case is placed by a positioning structure; the circuit breaker molded case is clamped by a clamping structure; and the circuit breaker molded case is polished by a polishing structure. The polishing drive unit drives the first and second take-up rollers to rotate synchronously. When the first take-up roller releases the polishing belt, the second take-up roller rewinds the polishing belt; when the second take-up roller releases the polishing belt, the first take-up roller rewinds the polishing belt, causing the polishing belt to move and realizing the polishing operation of the circuit breaker molded case. This eliminates the need for manual processing, saves labor, and improves the processing efficiency of circuit breaker molded cases.

[0009] Optionally, the grinding drive includes a first gear sleeved on the outside of the first take-up roller, a second gear sleeved on the outside of the second take-up roller, and a first mounting bracket disposed on the operating plate. A first operating shaft is rotatably connected to the first mounting bracket, and a drive gear is connected to the lower end face of the first operating shaft. Both the first gear and the second gear mesh with the drive gear. A first drive motor for driving the first operating shaft to rotate is disposed on the first mounting bracket.

[0010] By adopting the above technical solution, the first drive motor drives the active gear to rotate. Since both the first gear and the second gear mesh with the active gear, the active gear drives the first gear and the second gear to rotate synchronously. This means that the first take-up roller and the second take-up roller rotate synchronously, so that the second take-up roller rewinds the grinding belt while the first take-up roller releases the grinding belt, or the first take-up roller rewinds the grinding belt while the second take-up roller releases the grinding belt.

[0011] Optionally, two grinding components and two grinding drive components are provided, and the two grinding components are symmetrically distributed along the vertical center line of the operation plate; a linkage component is provided between the two first operation shafts to connect them, the linkage component includes an operation wheel sleeved on the two first operation shafts, and a linkage conveyor belt is sleeved on the two operation wheels.

[0012] By adopting the above technical solution, the first drive motor drives the first operating shaft, the operating wheel and the drive gear to rotate. The operating wheel causes another operating wheel and another drive gear to rotate through the linkage conveyor belt. The two drive gears then drive the first take-up roller and the second take-up roller to rotate respectively.

[0013] Optionally, two grinding components are provided, and the two grinding components are symmetrically distributed along the vertical center line of the operation plate; the two grinding drive components are driven by one grinding drive component, and both first gears mesh with the drive gear, and both second gears mesh with the drive gear.

[0014] By adopting the above technical solution, the first drive motor drives the first operating shaft and the drive gear to rotate. Since the two first gears and the two second gears are all meshed with the drive gear, the drive gear drives all the first take-up rollers and the second take-up rollers to rotate.

[0015] Optionally, the grinding drive includes a first driven wheel sleeved on the first take-up roller, a second driven wheel sleeved on the second take-up roller, and a second mounting bracket disposed on the operation plate. A second operating shaft is rotatably connected to the second mounting bracket, and a drive wheel is connected to the lower end face of the second operating shaft. A grinding conveyor belt is sleeved on the first driven wheel, the second driven wheel, and the drive wheel. A second drive motor for driving the second operating shaft to rotate is disposed on the second mounting bracket.

[0016] By adopting the above technical solution, the second drive motor drives the drive wheel to rotate, and the drive wheel drives the first driven wheel and the second driven wheel to rotate together through the grinding conveyor belt. The first driven wheel drives the first take-up roller to rotate, and the second driven wheel drives the second take-up roller to rotate, so that the first take-up roller releases the grinding belt while the second take-up roller takes up the grinding belt, or the second take-up roller releases the grinding belt while the first take-up roller takes up the grinding belt.

[0017] Optionally, the control panel is provided with a second displacement assembly for adjusting the distance between the two control columns. The second displacement assembly includes two control cylinders disposed above the control panel, with the two control columns located between the two control cylinders, and the piston rods of the control cylinders connected to the control columns.

[0018] By adopting the above technical solution, the piston rod of the operating cylinder extends or retracts, causing the two operating columns to move closer or further apart, enabling the grinding structure to process switch holes of different sizes, and allowing the precision machining equipment to process circuit breaker plastic shells of different sizes.

[0019] Optionally, a bottom hole is provided on the upper surface of the base plate. The clamping structure includes a second bidirectional lead screw rotatably connected in the bottom hole. The axis of the second bidirectional lead screw is the same as the width direction of the base plate. Two fixed blocks are mounted on the second bidirectional lead screw, which move linearly along the rotation axis when the second bidirectional lead screw rotates. The two fixed blocks move in opposite directions on the first bidirectional lead screw. Clamping plates are provided on the fixed blocks. The operating plate is located between the two clamping plates. A clamping motor for driving the second bidirectional lead screw to rotate is provided on the base plate.

[0020] By adopting the above technical solution, the clamping motor drives the second bidirectional lead screw to rotate, and the second bidirectional lead screw drives the two clamping plates to move closer or further apart, so that the two clamping plates clamp the circuit breaker molded shell, making it difficult for the circuit breaker molded shell to move when the grinding belt grinds the circuit breaker molded shell.

[0021] Optionally, the positioning structure includes a fixed column and a first adjusting component for moving the fixed column along the length direction of the base plate. The first adjusting component includes two second vertical plates disposed on the base plate, and an adjusting screw is rotatably connected between the two second vertical plates. A fixed seat is mounted on the adjusting screw, which moves linearly along the rotation axis when the adjusting screw rotates. The fixed seat is disposed on the fixed column, and a first adjusting motor for driving the adjusting screw to rotate is disposed on the second vertical plate.

[0022] By adopting the above technical solution, the first adjusting motor drives the adjusting screw to rotate, and the adjusting screw drives the fixed seat to move, so that the fixed seat moves closer to or away from the grinding structure, that is, the adjusting fixed column moves closer to or away from the grinding structure, so that the positioning structure can place circuit breaker plastic shells of different sizes, and the precision machining equipment can process circuit breaker plastic shells of different sizes.

[0023] Optionally, multiple fixed columns are provided, and a second adjusting component for adjusting the distance between two adjacent fixed columns is provided on the fixed base. The second adjusting component includes two fixed plates disposed on the fixed base, and a first bidirectional lead screw is rotatably connected between the two fixed plates. Two fixed blocks are mounted on the first bidirectional lead screw, which move linearly along the rotation axis when the first bidirectional lead screw rotates. The two fixed blocks move in opposite directions on the first bidirectional lead screw. Several scissor assemblies are provided between the two fixed blocks. Each scissor assembly includes a first rotating shaft, a second rotating shaft, and two connecting rods. The two connecting rods are hinged to form a rotating pair through the first rotating shaft disposed in the middle of the connecting rod. Two adjacent scissor assemblies are hinged to form a rotating pair through the second rotating shafts disposed at both ends of the connecting rod. A slider is horizontally slidably disposed on the end face of the fixed block facing the scissor assembly. The slider is hinged to one connecting rod of the scissor assembly closest to the fixed block, and the fixed block is hinged to the other connecting rod of the scissor assembly closest to the fixed block. The fixed column is connected to the first rotating shaft, and a second adjusting motor for driving the first bidirectional lead screw to rotate is provided on the fixed plate.

[0024] By adopting the above technical solution, the second adjusting motor drives the first bidirectional lead screw to rotate, which in turn drives the two fixed blocks to move. The two fixed blocks move closer to or further away from each other, even if the scissor fork assembly is deployed or blocked, even if two adjacent fixed columns move closer to or further away from each other. The distance between the two fixed columns is adjusted so that the positioning structure can accommodate circuit breaker housings of different sizes, and the precision machining equipment can process circuit breaker housings of different sizes.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The circuit breaker molded case is placed using a positioning structure; the circuit breaker molded case is clamped using a clamping structure; and the circuit breaker molded case is polished using a polishing structure. A polishing drive unit drives the first and second take-up rollers to rotate synchronously. When the first take-up roller releases the polishing strip, the second take-up roller rewinds the polishing strip; when the second take-up roller releases the polishing strip, the first take-up roller rewinds the polishing strip, causing the polishing strip to move and thus realizing the polishing operation of the circuit breaker molded case. This eliminates the need for manual processing, saving labor and improving the processing efficiency of circuit breaker molded cases.

[0027] 2. The cylinders drive the operating columns to move closer or further apart, allowing the grinding belt to process switch holes of different sizes, thus improving the adaptability of the finishing equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the plastic housing of a circuit breaker in the prior art;

[0029] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0030] Figure 3 This is a schematic diagram highlighting the polishing structure in Example 1;

[0031] Figure 4 This is a schematic diagram highlighting the grinding drive component in Example 1;

[0032] Figure 5 This is a schematic diagram highlighting the second adjustment component in Embodiment 1;

[0033] Figure 6 This is a schematic diagram highlighting the grinding drive component in Example 2.

[0034] Reference numerals: 1. Base plate; 11. Bottom hole; 2. Positioning structure; 21. Fixing column; 22. First adjusting component; 221. Fixing base; 2211. First insertion hole; 2212. Second insertion hole; 222. Second vertical plate; 223. Adjusting screw; 224. First adjusting motor; 225. First guide rod; 23. Second adjusting component; 231. Fixing plate; 232. First bidirectional screw; 233. Fixing block; 2331. Third insertion hole; 2332, Fourth insertion hole; 2333, Horizontal slide groove; 2334, Slider; 234, Scissor lift assembly; 2341, Connecting rod; 2342, First rotating shaft; 2343, Second rotating shaft; 235, Second guide rod; 236, Second adjusting motor; 237, Support bar; 3, Clamping structure; 31, Clamping plate; 311, Clamping block; 3111, Through hole; 32, Second bidirectional lead screw; 33, Clamping motor; 4, Grinding structure; 41, Operation panel; 4 11. First perforation; 412. Second perforation; 42. First displacement assembly; 421. First vertical plate; 422. Displacement screw; 423. Displacement motor; 424. Guide rod; 43. Grinding assembly; 431. Operating column; 432. First take-up roller; 433. Second take-up roller; 434. Grinding belt; 44. Grinding drive component; 441. Drive gear; 442. First gear; 443. Second gear; 444. First mounting bracket; 4 441. First drive motor; 4442. First operating shaft; 445. Second mounting bracket; 4451. Second drive motor; 4452. Second operating shaft; 446. First driven wheel; 447. Second driven wheel; 448. Drive wheel; 449. Grinding conveyor belt; 45. Second displacement assembly; 451. Cylinder; 46. Linkage component; 461. Operating wheel; 462. Linkage conveyor belt; 5. Housing; 51. Switch hole; 52. Mounting hole. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 2-5 This application will be described in further detail.

[0036] Example 1

[0037] This embodiment discloses a precision machining equipment for circuit breaker molded cases. (Refer to...) Figure 2 A circuit breaker molded case finishing equipment includes a base plate 1, on which a positioning structure 2, a clamping structure 3 and a grinding structure 4 are provided.

[0038] Reference Figure 3 and Figure 4 The grinding structure 4 is used for grinding the molded case of the circuit breaker. The grinding structure 4 includes an operation plate 41, a first displacement component 42, a grinding component 43, and a grinding drive component 44.

[0039] Reference Figure 3 and Figure 4The first displacement assembly 42 is used to drive the operating plate 41 to move along the length direction of the base plate 1. The first displacement assembly 42 includes two first vertical plates 421, a displacement screw 422, and a displacement motor 423. The two first vertical plates 421 are fixedly connected to the upper end surface of the base plate 1, and the two first vertical plates 421 are parallel to each other and arranged in an array along the length direction of the base plate 1. The displacement screw 422 is rotatably connected between the two first vertical plates 421. A guide rod 424 is fixedly connected between the two first vertical plates 421.

[0040] Reference Figure 3 and Figure 4 The lower end face of the operating plate 41 contacts the upper end face of the base plate 1. The operating plate 41 is located between two first vertical plates 421. The end face of the operating plate 41 facing the first vertical plate 421 has a first through hole 411 and a second through hole 412. The displacement screw 422 is threaded into the first through hole 411, and the guide rod 424 can pass through the second through hole 412.

[0041] Reference Figure 3 and Figure 4 The displacement motor 423 is fixedly connected to the end face of the first vertical plate 421 away from the operation plate 41. The displacement motor 423 is a stepper motor or a servo motor.

[0042] Reference Figure 3 and Figure 4 There are two grinding components 43, both of which are mounted on the operation plate 41 and are symmetrically distributed along the vertical center line of the base plate 1. The grinding component 43 includes an operation column 431, a first take-up roller 432, a second take-up roller 433, a grinding belt 434, and a second displacement component 45.

[0043] Reference Figure 3 and Figure 4 Two operating columns 431 are provided, and they are symmetrically distributed along the vertical center line of the operating plate 41. The operating columns 431 are in a straight line. The second displacement assembly 45 is used to drive the two operating columns 431 to move closer or further apart. The first displacement assembly 42 includes two first cylinders 451. The two operating columns 431 are located between the two first cylinders 451, and the piston rod of each first cylinder 451 is fixedly connected to the side of one operating column 431.

[0044] Reference Figure 3 and Figure 4The first take-up roller 432 and the second take-up roller 433 are both rotatably connected to the upper end face of the operating plate 41. Both the first take-up roller 432 and the second take-up roller 433 are located between the two operating columns 431. A sanding belt 434 is wound around the first take-up roller 432. The sanding belt 434 successively passes over the outer sides of the two operating columns 431 and is then wound onto the second take-up roller 433. One end of the sanding belt 434 along its length is fixedly connected to the outer circumferential surface of the first take-up roller 432, and the other end of the sanding belt 434 along its length is fixedly connected to the outer circumferential surface of the second take-up roller 433. The sanding belt 434 can be sandpaper.

[0045] Reference Figure 3 and Figure 4 The grinding drive unit 44 is mounted on the operation plate 41 and is used to drive the first take-up roller 432 and the second take-up roller 433 to rotate synchronously. The grinding drive unit 44 includes a drive gear 441, a first gear 442, a second gear 443, a first mounting bracket 444, and a first drive motor 4441.

[0046] Reference Figure 3 and Figure 4 A first mounting bracket 444 is fixedly connected to the upper surface of the operation plate 41, and a first operating shaft 4442 is rotatably connected to the first mounting bracket 444. A first drive motor 4441 is fixedly connected to the upper surface of the first mounting bracket 444, and the output shaft of the first drive motor 4441 is fixedly connected to the first operating shaft 4442. The first drive motor 4441 is a stepper motor or a servo motor. The lower surface of the first operating shaft 4442 is fixedly connected to the drive gear 441.

[0047] Reference Figure 3 and Figure 4 The first gear 442 is sleeved on the outside of the first take-up roller 432, and the first gear 442 meshes with the drive gear 441. The second gear 443 is sleeved on the outside of the second take-up roller 433, and the second gear 443 meshes with the drive gear 441.

[0048] Reference Figure 3 and Figure 4 Furthermore, a linkage 46 is provided between the two first operating shafts 4442 to connect them. The linkage 46 includes operating wheels 461 and a linkage conveyor belt 462. Two operating wheels 461 are provided, and each operating wheel 461 is sleeved on the outside of the first operating shaft 4442. The linkage conveyor belt 462 is sleeved on the outside of the two operating wheels 461. In other embodiments, the two grinding components 43 are driven by a grinding drive 44. The first gear 442 and the second gear 443 in the two grinding drive 44 are both meshed with the same driving gear 441. When the driving gear 441 rotates, it can directly drive the two first gears 442 and the two second gears 443 to rotate synchronously.

[0049] Reference Figure 2 and Figure 5 The positioning structure 2 is used to position the molded case of the circuit breaker. Two positioning structures 2 are provided, symmetrically distributed along the vertical centerline of the base plate 1. A grinding structure 4 is located between the two positioning structures 2, with the positioning structures 2 located on one side of the grinding structure 4 along the length of the base plate 1. The positioning structure 2 includes a fixing post 21, a first adjusting component 22, and a second adjusting component 23.

[0050] Reference Figure 2 and Figure 5 The first adjustment component 22 is used to drive the fixed column 21 to move along the length direction of the base plate 1. The first adjustment component 22 includes a fixed base 221, a second vertical plate 222, an adjustment screw 223 and a first adjustment motor 224.

[0051] Reference Figure 2 and Figure 5 Two second vertical plates 222 are provided, both fixedly mounted on the upper surface of the base plate 1. The two second vertical plates 222 are arranged in an array along the length of the base plate 1. An adjusting screw 223 is rotatably connected between the two second vertical plates 222, and a first guide rod 225 is provided between the second vertical plates 222. A first adjusting motor 224 is fixedly connected to the end face of the second vertical plate 222 away from the adjusting screw 223, and the output shaft of the first adjusting motor 224 is fixedly connected to the adjusting screw 223. The first adjusting motor 224 is a stepper motor or a servo motor.

[0052] Reference Figure 2 and Figure 5 The fixing base 221 is disposed between two second vertical plates 222, and the lower end face of the fixing base 221 contacts the upper end face of the base plate 1. The end face of the fixing base 221 facing the second vertical plate 222 has a first insertion hole 2211 and a second insertion hole 2212. The adjusting screw 223 is threaded into the first insertion hole 2211, and the second insertion hole 2212 allows the first guide rod 225 to pass through.

[0053] Reference Figure 2 and Figure 5 The second adjustment component 23 is used to drive the fixed column 21 to move along the width direction of the base plate 1. The second adjustment component 23 includes a fixed plate 231, a first bidirectional lead screw 232, a fixed block 233, a scissor lift assembly 234, a second adjustment motor 236, and a support bar 237.

[0054] Reference Figure 2 and Figure 5 Two fixing plates 231 are provided, both fixedly connected to the upper end face of the fixing block 233, and the two fixing plates 231 are arranged in an array along the width direction of the base plate 1. A first bidirectional lead screw 232 is rotatably connected between the two fixing plates 231. A second guide rod 235 is rotatably connected between the two fixing plates 231.

[0055] Reference Figure 2 and Figure 5 Two fixing blocks 233 are provided, and the lower end faces of both fixing blocks 233 are in contact with the upper end face of the fixing base 221. The fixing blocks 233 have a third insertion hole 2331 and a fourth insertion hole 2332. The first bidirectional lead screw 232 is threaded into the third insertion hole 2331. When the first bidirectional lead screw 232 rotates, the two fixing blocks 233 move in opposite directions on the first bidirectional lead screw 232. The fourth insertion hole 2332 allows the second guide rod 235 to pass through. The second adjusting motor 236 is fixedly connected to the end face of the fixing plate 231 away from the fixing blocks 233, and the output shaft of the second adjusting motor 236 is fixedly connected to the first bidirectional lead screw 232. The second adjusting motor 236 is a stepper motor or a servo motor.

[0056] Reference Figure 2 and Figure 5 Five scissor lift assemblies 234 are provided, each disposed between two fixing blocks 233, and the five scissor lift assemblies 234 are arrayed along the axial direction of the first bidirectional lead screw 232. In other embodiments, three, four, or other numbers of scissor lift assemblies 234 are provided.

[0057] Reference Figure 5 The scissor lift assembly 234 includes connecting rods 2341, a first rotating shaft 2342, and a second rotating shaft 2343. Two connecting rods 2341 are provided, each with a first rotating hole located in the middle of the connecting rod 2341, allowing the first rotating shaft 2342 to be inserted. The two connecting rods 2341 are hinged together via the first rotating shaft 2342 to form a rotating pair.

[0058] Reference Figure 5 The connecting rod 2341 has two second rotating holes for the insertion of the second rotating shaft 2343, and the first rotating hole is located between the two second rotating holes. The connecting rods 2341 of two adjacent scissor assemblies 234 are hinged to form a rotating pair through the second rotating shaft 2343.

[0059] Reference Figure 2 and Figure 5 A horizontal groove 2333 is formed on the end face of the fixing block 233 facing the scissor lift assembly 234. A horizontal rod is fixed in the horizontal groove 2333, and the axis of the horizontal rod is perpendicular to the axis of the first bidirectional lead screw. A slider 2334 is slidably arranged in the horizontal groove 2333. A punch is formed on the slider 2334 for the horizontal rod to pass through. The upper end face of the slider 2334 contacts the upper inner wall of the horizontal groove 2333, and the lower end face of the slider 2334 contacts the lower inner wall of the horizontal groove 2333.

[0060] Reference Figure 2 and Figure 5One of the links 2341 in the scissor assembly 234 closest to the fixed block 233 is hinged to the fixed block 233, and the other link 2341 in the scissor assembly 234 closest to the fixed block 233 is hinged to the slider 2334.

[0061] Reference Figure 2 and Figure 5 The number of fixing posts 21 is the same as the number of scissor lift assemblies 234. The fixing posts 21 are located above the scissor lift assemblies 234 and are threaded onto the outside of the first rotating shaft 2342.

[0062] Reference Figure 2 and Figure 5 Two support bars 237 are provided, and the lower end face of each support bar 237 is fixedly connected to the upper end face of the two fixing plates 231. A limiting channel is formed between the two support bars 237, and the first rotating shaft 2342 is located within the limiting channel. The lower end face of the fixing post 21 is in contact with the upper end face of the support bar 237. The support bars 237 can support the fixing post 21, share the force on the first rotating shaft 2342, and protect the scissor lift assembly 234, making the scissor lift assembly 234 less prone to damage.

[0063] Reference Figure 2 The clamping structure 3 is used to clamp the molded housing of the circuit breaker. The clamping structure 3 includes a clamping plate 31, a second bidirectional lead screw 32, and a clamping motor 33. A bottom hole 11 is formed on the upper surface of the base plate 1; the bottom hole 11 is elongated. The second bidirectional lead screw 32 is rotatably connected within the bottom hole 11, and the axial direction of the second bidirectional lead screw 32 is the same as the width direction of the base plate 1. The clamping motor 33 is fixedly connected to the side of the base plate 1, and the output shaft of the clamping motor 33 is fixedly connected to the second bidirectional lead screw 32. The clamping motor 33 is a stepper motor or a servo motor.

[0064] Reference Figure 2 Two clamping plates 31 are provided, and the grinding structure 4 is disposed between the two clamping plates 31. The lower end face of the clamping plate 31 contacts the upper end face of the base plate 1, and a clamping block 311 is fixedly connected to the end face of the clamping plate 31 facing the base plate 1. The end face of the clamping block 311 along the length direction of the base plate 1 contacts the inner wall of the bottom hole 11. A through hole 3111 is provided on the clamping block 311, and the second bidirectional lead screw 32 is threaded into the through hole 3111. When the clamping motor 33 drives the second bidirectional lead screw 32 to rotate, the two clamping blocks 311 move in opposite directions on the second bidirectional lead screw 32.

[0065] The implementation principle of Example 1 is as follows: The grinding device is adjusted according to the size of the circuit breaker molded shell to be processed. The first adjusting motor 224 drives the fixed seat 221 to move through the adjusting screw 223, so that the fixed seat 221 and the fixed column 21 move closer or further away from the grinding structure 4. The second adjusting motor 236 drives the two fixed plates 231 to move closer or further away from each other through the first bidirectional screw 232, so that the two adjacent fixed columns 21 move closer or further away from each other, thereby adjusting the position of the fixed column 21.

[0066] The grinding process begins with the following steps: First, the circuit breaker housing is placed on the positioning structure 2, with the fixing post 21 inserted into the mounting hole 52 of the circuit breaker housing, and the grinding belt 434 inserted into the switch hole 51. The clamping motor 33 drives the two clamping plates 31 to move closer together via the second bidirectional lead screw 32, clamping the circuit breaker housing. Next, the cylinder 451 drives the operating post 431 to move away from each other until the grinding belt 434 contacts the inner wall of the switch hole 51. Then, the first drive motor 4441 drives the drive gear 441 to rotate, which in turn drives the first gear 442 and the second gear 443 to rotate synchronously, causing the first take-up roller 432 and the second take-up roller 433 to rotate synchronously, thus grinding the inner wall of the switch hole 51 with the grinding belt 434. Finally, the displacement motor 423 drives the operating plate 41 to move through the displacement screw 422, so that the grinding belt 434 grinds the inner wall of the opening hole. After the fixed column 21 and the clamping plate 31 are reset, the circuit breaker plastic shell can be removed from the positioning structure 2.

[0067] Example 2

[0068] Reference Figure 6 The difference between this embodiment and embodiment 1 is that the grinding drive component 44 includes a second mounting bracket 445, a first driven wheel 446, a second driven wheel 447, a drive wheel 448, a grinding conveyor belt 449, and a second drive motor 4451.

[0069] Reference Figure 6 A second mounting bracket 445 is fixedly connected to the upper surface of the operation plate 41, and a second operating shaft 4452 is rotatably connected to the second mounting bracket 445. A second drive motor 4451 is fixedly connected to the upper surface of the second mounting bracket 445, and the output shaft of the second drive motor 4451 is fixedly connected to the second operating shaft 4452. The second drive motor 4451 is a stepper motor or a servo motor. The lower surface of the second operating shaft 4452 is fixedly connected to the drive wheel 448.

[0070] Reference Figure 6 The first driven wheel 446 is sleeved outside the first take-up roller 432, and the second driven wheel 447 is sleeved outside the second take-up roller 433. The grinding conveyor belt 449 is sleeved on the first driven wheel 446, the second driven wheel 447 and the driving wheel 448.

[0071] The implementation principle of Example 2 is as follows: The second drive motor 4451 drives the drive wheel 448 to rotate. The drive wheel 448 causes the first driven wheel 446 and the second driven wheel 447 to rotate synchronously through the grinding conveyor belt 449. This causes the first take-up roller 432 and the second take-up roller 433 to rotate synchronously, so that the first take-up roller 432 releases the grinding belt 434 while the second take-up roller 433 rewinds the grinding belt 434, or the second take-up roller 433 releases the grinding belt 434 while the first take-up roller 432 rewinds the grinding belt 434.

[0072] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A device for finishing the plastic housing of a circuit breaker, comprising a base plate (1), characterized in that: The base plate (1) is provided with a positioning structure (2) for placing the circuit breaker housing, a clamping structure (3) for holding the circuit breaker housing, and a grinding structure (4) for grinding the circuit breaker housing; the grinding structure (4) includes an operating plate (41) provided on the base plate (1), and a grinding assembly (43) provided on the operating plate (41). The grinding assembly (43) includes two operating columns (431) provided on the operating plate (41) and a first take-up roller (432) and a second take-up roller (433) rotatably connected to the operating plate (41). The first take-up roller (432) 2) The second take-up roller (433) is located between the two operating columns (431). A polishing belt (434) is wound on the first take-up roller (432). The polishing belt (434) passes around the two operating columns (431) in sequence and then winds onto the second take-up roller (433). The rotation direction of the first take-up roller (432) when winding the polishing belt (434) is the same as the rotation direction of the second take-up roller (433) when releasing the polishing belt (434). The operating plate (41) is provided with a polishing drive (44) that drives the first take-up roller (432) and the second take-up roller (433) to rotate synchronously. The positioning structure (2) includes a fixed column (21) and a first adjustment component (22) for the fixed column (21) to move along the length direction of the base plate (1). The first adjustment component (22) includes two second vertical plates (222) disposed on the base plate (1). An adjustment screw (223) is rotatably connected between the two second vertical plates (222). A fixed seat (221) is mounted on the adjustment screw (223) and moves linearly along the rotation axis when the adjustment screw (223) rotates. The fixed seat (221) is disposed on the fixed column (21). A first adjustment motor (224) for driving the adjustment screw (223) to rotate is disposed on the second vertical plate (222). Multiple fixed posts (21) are provided. A second adjusting component (23) for adjusting the distance between two adjacent fixed posts (21) is provided on the fixed base (221). The second adjusting component (23) includes two fixed plates (231) provided on the fixed base (221). A first bidirectional lead screw (232) is rotatably connected between the two fixed plates (231). Two fixed blocks (233) are mounted on the first bidirectional lead screw (232) and move linearly along the rotation axis when the first bidirectional lead screw (232) rotates. The two fixed blocks (233) move in opposite directions on the first bidirectional lead screw (232). A plurality of scissor assemblies (234) are provided between the two fixed blocks (233). The scissor assemblies (234) include a first rotating shaft (2342), a second rotating shaft (2343), and two connecting rods (2341). The connecting rod (2341) is hinged to a first rotating shaft (2342) located in the middle of the connecting rod (2341) to form a rotating pair. Two adjacent scissor assemblies (234) are hinged to a second rotating shaft (2343) located at both ends of the connecting rod (2341) to form a rotating pair. The fixed block (233) has a slider (2334) horizontally slidably disposed on the end face of the scissor assembly (234). The slider (2334) is hinged to one connecting rod (2341) of the scissor assembly (234) closest to the fixed block (233). The fixed block (233) is hinged to the other connecting rod (2341) of the scissor assembly (234) closest to the fixed block (233). The fixed column (21) is connected to the first rotating shaft (2342). The fixed plate (231) is provided with a second adjusting motor (236) that drives the first bidirectional lead screw (232) to rotate.

2. The circuit breaker plastic housing finishing apparatus according to claim 1, wherein: The grinding drive component (44) includes a first gear (442) sleeved on the first take-up roller (432), a second gear (443) sleeved on the second take-up roller (433), and a first mounting bracket (444) disposed on the operation plate (41). A first operating shaft (4442) is rotatably connected to the first mounting bracket (444). A drive gear (441) is connected to the lower end face of the first operating shaft (4442). The first gear (442) and the second gear (443) are both meshed with the drive gear (441). A first drive motor (4441) for driving the first operating shaft (4442) to rotate is disposed on the first mounting bracket (444).

3. A circuit breaker plastic housing finishing apparatus according to claim 2, wherein: Two grinding components (43) and two grinding drive components (44) are provided. The two grinding components (43) are symmetrically distributed along the vertical center line of the operation plate (41). A linkage component (46) is provided between the two first operation shafts (4442). The linkage component (46) includes an operation wheel (461) sleeved on the two first operation shafts (4442). The two operation wheels (461) are covered with a linkage conveyor belt (462).

4. The circuit breaker plastic housing finishing apparatus according to claim 2, wherein: Two grinding components (43) are provided, and the two grinding components (43) are symmetrically distributed along the vertical center line of the operation plate (41); the two grinding drive components (44) are driven by one grinding drive component (44), the two first gears (442) are meshed with the drive gear (441), and the two second gears (443) are meshed with the drive gear (441).

5. The circuit breaker plastic housing finishing apparatus according to claim 1, wherein: The grinding drive component (44) includes a first driven wheel (446) sleeved on the first take-up roller (432), a second driven wheel (447) sleeved on the second take-up roller (433), and a second mounting bracket (445) mounted on the operation plate (41). A second operating shaft (4452) is rotatably connected to the second mounting bracket (445). A drive wheel (448) is connected to the lower end face of the second operating shaft (4452). A grinding conveyor belt (449) is sleeved on the first driven wheel (446), the second driven wheel (447), and the drive wheel (448). A second drive motor (4451) for driving the second operating shaft (4452) to rotate is mounted on the second mounting bracket (445).

6. The circuit breaker plastic housing finishing apparatus according to claim 1, wherein: The operation plate (41) is provided with a second displacement component (45) for adjusting the distance between two operation columns (431). The second displacement component (45) includes two operation cylinders (451) disposed above the operation plate (41). The two operation columns (431) are located between the two operation cylinders (451), and the piston rod of the operation cylinder (451) is connected to the operation column (431).

7. The circuit breaker plastic housing finishing apparatus according to claim 1, wherein: The base plate (1) has a bottom hole (11) on its upper surface. The clamping structure (3) includes a second bidirectional lead screw (32) rotatably connected in the bottom hole (11). The axis of the second bidirectional lead screw (32) is the same as the width direction of the base plate (1). The second bidirectional lead screw (32) is equipped with two clamping blocks (311) that move linearly along the rotation axis when the second bidirectional lead screw (32) rotates. The two clamping blocks (311) move in opposite directions on the second bidirectional lead screw (32). The clamping blocks (311) are provided with clamping plates (31). The operating plate (41) is located between the two clamping plates (31). The base plate (1) is provided with a clamping motor (33) that drives the second bidirectional lead screw (32) to rotate.

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