Stepping type shearing machine tool for circuit breaker copper sheet

Abstract

The invention discloses a stepping shearing machine tool for a circuit breaker copper sheet, which belongs to the technical field of stepping cutting machinery and comprises a seat body, a shearing mechanism and a feeding mechanism. A through groove is formed in the upper portion of the base, a copper material penetrates through the through groove, the feeding mechanism and the shearing mechanism work alternately, the feeding mechanism is used for achieving fixed-length conveying of the copper material from left to right, and the shearing mechanism is used for conducting hole cutting and slicing machining on the copper material. When the circuit breaker copper sheet is machined, the feeding mechanism achieves fixed-length conveying of a copper material, after feeding of the copper material is completed, the shearing mechanism conducts hole cutting operation on the copper material, the part obtained after hole cutting is completed is shaped and cut off, then the feeding mechanism works again, and automatic continuous shearing machining of the circuit breaker copper sheet can be achieved by repeating the steps. And compared with a traditional machining mode, the machining process can be greatly simplified, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nibbling cutting machinery, in particular to a stepping shearing machine tool for circuit breaker copper sheets. Background Art

[0002] Circuit breaker copper sheet, also commonly known as circuit breaker lead, is an electrical connector that connects the upper and lower lines of the circuit breaker. Its main function is to transmit current and ensure the normal operation of the circuit. When the current exceeds the set safety value, the circuit breaker will automatically cut off the circuit to avoid dangerous situations such as circuit overload and short circuit. Circuit breaker copper sheet is usually made of pure copper and cannot be added with other impurities to ensure good electrical connection, such as Figure 1 As shown, the copper sheet of the circuit breaker is generally in the shape of a racetrack, with through holes for connecting lines opened on both sides and in the middle.

[0003] Circuit breaker copper sheets are processed using long strips of copper. In the existing technology, the copper is first cut into short strips of appropriate size, then sheared into a suitable shape using a shearing mechanism, and then punched using a punching machine to process through holes. During the processing, there are many steps, and the loading, unloading, and waste collection processes require a lot of human intervention, resulting in low processing efficiency. There is also a risk of injury from the machine during manual intervention. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a step-by-step shearing machine for circuit breaker copper sheets, which is achieved through the following technical solutions.

[0005] A step-by-step shearing machine tool for circuit breaker copper sheets comprises a long strip of copper material, the circuit breaker copper sheet being in a runway shape, with through holes provided on both sides and in the middle of the circuit breaker copper sheet, a base, a shearing mechanism and a feeding mechanism;

[0006] A through slot is provided on the top of the base body, and the first frame and the second frame are fixedly connected to the left and right sides of the base body respectively. A pair of baffles are fixedly connected to the top of the first frame and the second frame symmetrically in front and back. The left side of the top of the first frame and the top of the second frame are rotatably connected to rollers, and the copper material passes through the through slot and is placed on the rollers.

[0007] The feeding mechanism and the shearing mechanism are respectively located on the first frame and the base, and the feeding mechanism and the shearing mechanism work alternately. The feeding mechanism is used to realize the fixed-length transportation of copper materials from left to right, and the shearing mechanism is used to cut holes and slice the copper materials.

[0008] Preferably, the shearing mechanism includes a hole cutting die seat, a slicing die seat, a shearing rod, a shearing knife and a motor, the hole cutting die seat and the slicing die seat are fixedly connected to the top of the through slot symmetrically on the left and right, the hole cutting die seat is provided with a shearing hole corresponding to the through hole, the slicing die seat is provided with a shearing groove corresponding to the copper sheet of the circuit breaker, a lifting cavity is provided symmetrically on the left and right sides of the seat body, a lifting seat is slidably connected in the lifting cavity, the shearing rod is fixedly connected to the lifting seat on the left and is slidably connected to the seat body, a receiving groove is provided at the right bottom of the through slot, the position of the shearing knife corresponds to the receiving groove, a connecting rod is fixedly connected between the shearing knife and the lifting seat on the right, and the connecting rod is slidably connected to the seat body The gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector.

[0009] Preferably, the feeding mechanism includes a turntable and a conveying seat, the left side of the hanging plate and the supporting plate is rotatably connected to the second rotating shaft, the second rotating shaft is fixedly connected to the second gear corresponding to the fan gear, the number of teeth of the fan gear is equal to the number of teeth of the second gear, the center of the turntable is fixedly connected to the top of the second rotating shaft, the turntable is eccentrically provided with a first pin shaft, a slide groove is opened on the top right side of the first frame, the conveying seat is slidably connected to the slide groove, the bottom of the conveying seat is fixedly connected to the second pin shaft, and the second pin shaft and the first pin shaft are hinged. The swing plate and the conveying seat are provided with an avoidance groove running through the left and right sides, the copper material passes through the avoidance groove, the bottom of the avoidance groove is provided with a groove, and a sliding cavity is provided under the conveying seat, the bottom of the sliding cavity is fixedly connected to an electromagnet, and a permanent magnet seat is slidably connected in the sliding cavity. When the electromagnet is energized, the polarity of the permanent magnet seat and the side where the electromagnet is close to each other is the same, and a sliding rod is uniformly fixed on the permanent magnet seat in the longitudinal direction, and the sliding rod is slidably connected to the conveying seat, and a pressure plate is fixed on the top of the sliding rod, and rubber ribs are uniformly fixed on the pressure plate in the longitudinal direction.

[0010] Preferably, an annular groove is provided on the upper surface of the hanging plate, and the annular groove coincides with the axis of the turntable. The front outer wall and inner wall of the annular groove are respectively fixed with an arc-shaped first metal plate and a second metal plate. The lower surface of the turntable is fixed with a metal rod at the position corresponding to the annular groove, and the metal rod is located on the side away from the first pin shaft. The front side of the second frame is fixed with a control switch, and also includes an external power supply. The positive pole of the external power supply is electrically connected to the second metal plate and the positive terminal of the motor through the control switch, and the negative pole of the external power supply is electrically connected to the negative terminal of the motor. The positive and negative terminals of the electromagnet are respectively electrically connected to the first wire and the second wire. The other end of the first wire is electrically connected to the second metal plate, and the other end of the second wire is electrically connected to the negative pole of the external power supply.

[0011] Preferably, wire grooves are opened at the bottom of the front and rear sides of the slide, and the first wire and the second wire pass through the wire grooves on the front and rear sides respectively. Intercepting plates are symmetrically fixed to the front and rear sides of the first frame, and the first wire passes through the intercepting plates.

[0012] Preferably, a track groove is provided on the turntable, a screw is rotatably connected to the track groove, a track block is slidably connected to the track groove, and the track block is engaged with the screw, the first pin is fixed to the top of the track block, a knob is fixed to the head of the screw, and an operating port is provided on the left side of the first frame at the position corresponding to the knob.

[0013] Preferably, the lifting seat is sealingly and slidingly connected in the lifting chamber, and a U-shaped cover frame is fixedly connected to the top of the seat body corresponding to the position of the cutting die seat and the slicing die seat, the opening of the cover frame faces forward, and a group of air injection pipes are fixedly connected to the rear side plate of the cover frame in a laterally uniform manner, the front end of the air injection pipe is fixedly connected to a nozzle, and the rear end of the same group of air injection pipes is integrally fixedly connected to a connecting pipe, an air outlet pipe is fixedly connected to the connecting pipe, and the head of the air outlet pipe is connected to the top of the lifting chamber, and an air inlet pipe is fixedly connected to the rear side of the seat body corresponding to the position of the top of the lifting chamber, and a first one-way valve and a second one-way valve are fixedly connected to the air outlet pipe and the air inlet pipe respectively, the first one-way valve allows gas to pass in the direction away from the lifting chamber, and the second one-way valve allows gas to pass in the direction pointing to the lifting chamber.

[0014] Preferably, the upper surfaces of the hole cutting die seat and the slicing die seat are tilted downward from the back to the front, and the upper surfaces of the front sides of the hole cutting die seat and the slicing die seat are also tilted downward from the back to the front. A collection box is fixedly connected to the front side of the seat body, and a partition is fixedly connected inside the collection box.

[0015] The beneficial effect of the present invention is that the feeding mechanism and the shearing mechanism work alternately. When processing the circuit breaker copper sheet, the feeding mechanism realizes the fixed-length transportation of the copper material. After the copper material is fed, the shearing mechanism performs a hole cutting operation on the copper material and cuts off the part with the hole cut into a fixed shape. Then the feeding mechanism works again. In this way, the circuit breaker copper sheet can be automatically and continuously sheared. Compared with the traditional processing method, the processing flow can be greatly simplified and the processing efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 : A schematic structural diagram of the circuit breaker copper sheet according to the present invention;

[0018] Figure 2 : Axonometric view of a step-by-step shearing machine for circuit breaker copper sheets according to the present invention;

[0019] Figure 3 : A three-dimensional schematic diagram of the bottom of a step-type shearing machine for circuit breaker copper sheets according to the present invention;

[0020] Figure 4 : A cross-sectional view of a step-by-step shearing machine for circuit breaker copper sheets according to the present invention;

[0021] Figure 5 : Transmission schematic diagram of the motor of the present invention;

[0022] Figure 6 : A half-section view of the seat body of the present invention;

[0023] Figure 7 : Figure 4 A partial enlarged view of point A shown;

[0024] Figure 8 : A half-section view of the conveying seat of the present invention;

[0025] Figure 9 : A partial schematic diagram of the first frame of the present invention;

[0026] Figure 10 : A schematic structural diagram of the annular groove of the present invention;

[0027] Figure 11 : A schematic diagram of the steering of the sector gear, the first gear and the second gear of the present invention;

[0028] Figure 12 : A schematic diagram of circuit connections of various circuit elements in the present invention;

[0029] Figure 13 : Figure 4 A partial enlarged view of point B shown;

[0030] Figure 14 : A three-dimensional schematic diagram of the bottom of the turntable of the present invention;

[0031] Figure 15 : A partial cross-sectional view of the position of the hole cutting die base described in the present invention.

[0032] The reference numerals are as follows:

[0033] 100-copper material, 200-circuit breaker copper sheet, 300-through hole,

[0034] 1-base, 11-through slot, 12-first frame, 13-second frame, 14-baffle, 15-roller;

[0035] 21-cutting die base, 22-slicing die base, 23-shearing rod, 24-shearing knife, 25-motor, 26-shearing hole, 27-shearing groove, 28-lifting chamber, 29-lifting seat, 210-storage slot, 211-connecting rod, 212-hanging plate, 213-supporting plate, 214-output shaft, 215-sector gear, 216-first rotating shaft, 217-first gear, 218-shaft, 219-bevel gear pair, 220-crankshaft, 221-connecting rod;

[0036] 31 - turntable, 32 - conveying seat, 33 - second rotating shaft, 34 - second gear, 35 - first pin, 36 - slide groove, 37 - second pin, 38 - swing plate, 39 - avoidance groove, 310 - groove, 311 - sliding cavity, 312 - electromagnet, 313 - permanent magnet seat, 314 - slide rod, 315 - pressure plate, 316 - rubber rib;

[0037] 41 - annular groove, 42 - first metal plate, 43 - second metal plate, 44 - metal rod, 45 - control switch, 46 - external power supply, 47 - first wire, 48 - second wire, 49 - wire groove, 410 - interceptor plate, 411 - track groove, 412 - screw, 413 - track block, 414 - knob, 415 - operation port;

[0038] 51 - cover frame, 52 - jet pipe, 53 - nozzle, 54 - connecting pipe, 55 - air outlet pipe, 56 - air inlet pipe, 57 - first one-way valve, 58 - second one-way valve, 59 - collection box, 510 - partition. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] like Figure 1-15 As shown, the present invention has the following four specific embodiments.

[0041] Example 1

[0042] A step-by-step shearing machine for circuit breaker copper sheets, comprising a long copper material 100, a circuit breaker copper sheet 200 in a racetrack shape, and through holes 300 provided on both sides and the middle of the circuit breaker copper sheet 200, a base 1, a shearing mechanism, and a feeding mechanism;

[0043] A through slot 11 is provided on the top of the base body 1, which runs through the left and right sides. A first frame 12 and a second frame 13 are fixedly connected to the left and right sides of the base body 1 respectively. A pair of baffles 14 are fixedly connected to the top of the first frame 12 and the second frame 13 in a front-to-back symmetrical manner. Rollers 15 are rotatably connected to the left side of the top of the first frame 12 and the top of the second frame 13. The copper material 100 passes through the through slot 11 and is placed on the rollers 15.

[0044] The feeding mechanism and the shearing mechanism are respectively located on the first frame 12 and the base 1. The feeding mechanism and the shearing mechanism work alternately. The feeding mechanism is used to realize the fixed-length transportation of the copper material 100 from left to right, and the shearing mechanism is used to cut holes and slice the copper material 100.

[0045] In this embodiment, Figure 4 As shown, the copper material 100 passes through the through slot 11 and is placed on the roller 15. During the operation of the machine tool, the feeding mechanism first transports the copper material 100 from the left to the rear with a fixed length. After the transportation is completed, the shearing mechanism works to cut holes in the copper material 100 and cuts off the part with the holes cut. Then the feeding mechanism works again, and the cycle is repeated to realize the automatic continuous shearing processing of the circuit breaker copper sheet 200.

[0046] Example 2

[0047] The shearing mechanism includes a hole cutting die base 21, a slicing die base 22, a shearing rod 23, a shearing knife 24 and a motor 25. The hole cutting die base 21 and the slicing die base 22 are fixedly connected to the top of the through slot 11 symmetrically on the left and right. A shearing hole 26 corresponding to the through hole 300 is provided on the hole cutting die base 21, and a shearing groove 27 corresponding to the circuit breaker copper sheet 200 is provided on the slicing die base 22. A lifting cavity 28 is symmetrically provided in the base body 1, and a lifting seat 29 is slidably connected in the lifting cavity 28. The shearing rod 23 is fixedly connected to the lifting seat 29 on the left and is slidably connected to the base body 1. A receiving groove 210 is provided at the right bottom of the through slot 11. The position of the shearing knife 24 corresponds to the receiving groove 210. A connecting rod 211 is fixedly connected between the shearing knife 24 and the lifting seat 29 on the right, and the connecting rod 211 is slidably connected to the base body 1. A hanging plate 21 is fixedly connected in the first frame 12 2. A supporting plate 213 is fixedly connected to the lower side of the hanging plate 212. The motor 25 is fixedly connected to the lower surface of the hanging plate 212. The motor 25 is provided with an output shaft 214 pointing vertically downward. The output shaft 214 is rotatably connected to the supporting plate 213, and a fan gear 215 is fixedly connected to the output shaft 214. The right side of the hanging plate 212 and the supporting plate 213 is rotatably connected to a first rotating shaft 216. A first gear 217 corresponding to the fan gear 215 is fixedly connected to the first rotating shaft 216. The number of teeth of the fan gear 215 is equal to the number of teeth of the first gear 217. A shaft rod 218 is rotatably connected between the first frame 12 and the second frame 13. The left end of the shaft rod 218 is linked to the first rotating shaft 216 through a bevel gear pair 219. A crankshaft 220 is fixedly connected to the position of the lifting seat 29 on the shaft rod 218. A connecting rod 221 is hinged between the crankshaft 220 and the lifting seat 29.

[0048] In this embodiment, Figure 4-6 As shown, the hole cutting die base 21 and the slicing die base 22 are respectively the hole cutting and slicing stations, and the length of each delivery by the feeding mechanism is the distance between the two stations.

[0049] When the shearing mechanism is working, the motor 25 drives the output shaft 214 and the sector gear 215 to rotate, and the first gear 217 engaged with the sector gear 215 rotates, so that the first rotating shaft 216 drives the shaft 218 and the crankshaft 220 to rotate through the bevel gear pair 219, and the crankshaft 220 drives the lifting seat 29 to move vertically through the connecting rod 221. Since the number of teeth of the sector gear 215 is equal to the number of teeth of the first gear 217, the sector gear 215 drives the first gear 217 to rotate one circle during the process of meshing with it. The transmission ratio of the bevel gear pair 219 is set to 1:1. Then, during the rotation of the first gear 217, the crankshaft 220 rotates one circle, and the lifting seat 29 performs a vertical lift.

[0050] In the initial state, the top of the shear rod 23 and the shear knife 24 are flush with the top of the through slot 11. When the two rise, they cut holes and slice the copper material 100 respectively. Since the length of each delivery of the feeding mechanism is the distance between the two workstations, the copper material 100 at the slicing station has been cut in advance. After being sliced ​​by the shear knife 24, the circuit breaker copper sheet 200 can be formed.

[0051] Example 3

[0052] The feeding mechanism includes a turntable 31 and a conveying seat 32. The left side of the hanging plate 212 and the supporting plate 213 is rotatably connected to the second rotating shaft 33. The second rotating shaft 33 is fixed with a second gear 34 corresponding to the fan gear 215. The number of teeth of the fan gear 215 is equal to the number of teeth of the second gear 34. The center of the turntable 31 is fixedly connected to the top of the second rotating shaft 33. A first pin 35 is eccentrically provided on the turntable 31. A slide groove 36 is provided on the right side of the top of the first frame 12. The conveying seat 32 is slidably connected to the slide groove 36. The bottom of the conveying seat 32 is fixed with a second pin 37. A swing plate 38 is hinged between the second pin 37 and the first pin 35. 2 is provided with an avoidance groove 39 running through the left and right sides, and the copper material 100 passes through the avoidance groove 39. A groove 310 is provided at the bottom of the avoidance groove 39, and a sliding cavity 311 is provided below the conveying seat 32. The bottom of the sliding cavity 311 is fixedly connected to an electromagnet 312, and a permanent magnet seat 313 is slidably connected in the sliding cavity 311. When the electromagnet 312 is energized, the polarity of the permanent magnet seat 313 and the side of the electromagnet 312 that are close to each other is the same. A sliding rod 314 is uniformly fixed to the permanent magnet seat 313 in the longitudinal direction, and the sliding rod 314 is slidably connected to the conveying seat 32. A pressing plate 315 is fixed to the top of the sliding rod 314, and a rubber rib 316 is uniformly fixed to the pressing plate 315 in the longitudinal direction.

[0053] Furthermore, an annular groove 41 is provided on the upper surface of the hanging plate 212, and the annular groove 41 coincides with the axis of the turntable 31. The front outer wall and inner wall of the annular groove 41 are respectively fixed with an arc-shaped first metal plate 42 and a second metal plate 43. A metal rod 44 is fixed to the position corresponding to the annular groove 41 on the lower surface of the turntable 31. The metal rod 44 is located on the side away from the first pin shaft 35. A control switch 45 is fixed to the front side of the second frame 13, and also includes an external power supply 46. The positive pole of the external power supply 46 is electrically connected to the second metal plate 43 and the positive terminal of the motor 25 through the control switch 45, and the negative pole of the external power supply 46 is electrically connected to the negative terminal of the motor 25. The positive and negative terminals of the electromagnet 312 are respectively electrically connected to the first wire 47 and the second wire 48. The other end of the first wire 47 is electrically connected to the second metal plate 43, and the other end of the second wire 48 is electrically connected to the negative pole of the external power supply 46.

[0054] Furthermore, wire grooves 49 are opened at the bottom of the front and rear sides of the slide groove 36, and the first wire 47 and the second wire 48 pass through the wire grooves 49 on the front and rear sides respectively. Intercepting plates 410 are symmetrically fixed to the front and rear sides of the first frame 12, and the first wire 47 passes through the intercepting plates 410.

[0055] Furthermore, a track groove 411 is provided on the turntable 31, a screw 412 is rotatably connected to the track groove 411, a track block 413 is slidably connected to the track groove 411, and the track block 413 is engaged with the screw 412, the first pin shaft 35 is fixed to the top of the track block 413, the head of the screw 412 is fixed to the knob 414, and an operating port 415 is provided on the left side of the first frame 12 at the position corresponding to the knob 414.

[0056] In this embodiment, Figure 4-5 As shown, when the sector gear 215 rotates, it also drives the second gear 34 to rotate, thereby rotating the second rotating shaft 33 and the turntable 31. The turntable 31 drives the conveying seat 32 to move left and right through the swing plate 38 to convey the copper material 100. The sector gear 215 alternately drives the first gear 217 and the second gear 34 to rotate, so that the feeding mechanism and the shearing mechanism work alternately. Since the number of teeth of the sector gear 215 is equal to the number of teeth of the second gear 34, when the sector gear 215 is engaged with the second gear 34, it drives it to rotate one circle, that is, the turntable 31 rotates one circle.

[0057] Assume that in the initial state, the first pin 35 is located at the leftmost side, and the turntable 31 rotates clockwise when viewed from top to bottom. Figure 10 As shown, during the rotation of the turntable 31 half a circle, the conveying seat 32 moves to the right, and when the metal rod 44 enters between the first metal plate 42 and the second metal plate 43, as shown in FIG. Figure 12 As shown, the circuit of the electromagnet 312 is connected, as shown in FIG. Figure 7-8 As shown, the magnetic repulsion between the electromagnet 312 and the permanent magnet seat 313 lifts the permanent magnet seat 313, thereby lifting the pressure plate 315 and the rubber rib 316, and pressing the copper material 100 through the rubber rib 316, so that the copper material 100 moves to the right along with the conveying seat 32, thereby realizing the conveying of the copper material 100. When the metal rod 44 is separated from the first metal plate 42 and the second metal plate 43, the electromagnet 312 is powered off and stops clamping the copper material 100. After the turntable 31 rotates half a circle, the first pin shaft 35 moves to the far right. During the process of the turntable 31 rotating half a circle again, the conveying seat 32 is reset.

[0058] like Figure 2-3 、 Figure 8-9 as well as Figure 12As shown, during the movement of the conveying seat 32, since the first wire 47 and the second wire 48 have sufficient reserved length and a wire groove 49 is provided, the conveying seat 32 will not affect the power connection of the electromagnet 312 during the movement. The setting of the intercepting plate 410 can prevent the first wire 47 and the second wire 48 from being entangled on the turntable 31.

[0059] like Figure 12 As shown, when the machine tool is working, the control switch 45 is closed, the motor 25 is powered on, and when the motor 25 continues to work, it drives the first gear 217 and the second gear 34 to rotate alternately. When the first gear 217 rotates, the shearing mechanism works, and when the second gear 34 rotates, the feeding mechanism works, and at this time the circuit of the electromagnet 312 is connected.

[0060] like Figure 11 As shown, the direction of the motor 25 is set so that when viewed from top to bottom, the sector gear 215 rotates counterclockwise, and the sector gear 215 can drive the second gear 34 and the turntable 31 to rotate clockwise.

[0061] like Figure 2 As shown in 13-14, since in this application, there are relatively precise requirements for the distance of each conveyance of the copper material 100, that is, the distance each conveyance of the copper material 100 is equal to the distance between the cutting hole and the slicing station, the knob 414 can be driven to rotate at the operating port 415, thereby driving the screw 412 to rotate, and the screw 412 drives the track block 413 and the first pin shaft 35 to move, and adjusts the distance between the first pin shaft 35 and the center of the turntable 31, thereby adjusting the stroke length of the left and right movement of the conveying seat 32. When the stroke length of the left and right movement of the conveying seat 32 is different, the length of each conveyance of the copper material 100 will also be different, so that it meets the requirements.

[0062] Example 4

[0063] The lifting seat 29 is sealed and slidably connected in the lifting chamber 28. A U-shaped cover frame 51 is fixedly connected to the top of the seat body 1 corresponding to the position of the cutting die seat 21 and the slicing die seat 22. The opening of the cover frame 51 faces forward. A group of air injection pipes 52 are evenly fixedly connected to the rear side plate of the cover frame 51 in the horizontal direction. The front end of the air injection pipe 52 is fixedly connected to a nozzle 53. The rear end of the same group of air injection pipes 52 is integrally fixedly connected to a connecting pipe 54. An air outlet pipe 55 is fixedly connected to the connecting pipe 54. The head of the air outlet pipe 55 is connected to the top of the lifting chamber 28. An air inlet pipe 56 is fixedly connected to the rear side of the seat body 1 corresponding to the position of the top of the lifting chamber 28. A first one-way valve 57 and a second one-way valve 58 are fixedly connected to the air outlet pipe 55 and the air inlet pipe 56 respectively. The first one-way valve 57 allows gas to pass in the direction away from the lifting chamber 28, and the second one-way valve 58 allows gas to pass in the direction pointing to the lifting chamber 28.

[0064] Furthermore, the upper surfaces of the hole cutting die seat 21 and the slicing die seat 22 are tilted downward from the back to the front, and the upper surface of the seat body 1 on the front side of the hole cutting die seat 21 and the slicing die seat 22 is also tilted downward from the back to the front. The front side of the seat body 1 is fixedly connected to a collection box 59, and a partition 510 is fixedly connected inside the collection box 59.

[0065] In this embodiment, Figure 6 and Figure 15 As shown, when the shearing mechanism is working, the lifting seat 29 moves vertically. When the hole cutting and slicing processing is performed, the lifting seat 29 rises, and the air above the lifting seat 29 can be squeezed out through the air outlet pipe 55 and the first one-way valve 57, and sprayed out through the connecting pipe 54, the air injection pipe 52 and the nozzle 53. The waste pieces punched out by the shear rod 23 and the circuit breaker copper sheet 200 punched out by the shear knife 24 are ejected above the knife cutting die base 21 and the slicing die base 22. The gas sprayed by the nozzle 53 causes them to fall and slide down the inclined surface. The collection box 59 is divided into two chambers by the partition 510, and the waste pieces and the circuit breaker copper sheet 200 enter the left and right chambers respectively.

[0066] The working principle of the present invention is:

[0067] Taking a certain moment during the continuous operation of the machine tool as the initial state, the initial state is: the copper material 100 is located in the through groove 11, the copper material 100 at the hole cutting station has completed the opening of the through hole 300, and the slicing station has completed the punching of the circuit breaker copper sheet 200; the lifting seat 29 is at the lowest point; the first pin 35 is located at the far left, and the teeth of the sector gear 215 are located directly behind.

[0068] like Figure 12 As shown, close the control switch 45 to start the motor 25, as shown in FIG. Figure 10-11 As shown, the motor 25 drives the sector gear 215 to rotate counterclockwise. When the teeth of the sector gear 215 engage with the second gear 34, the second gear 34 and the turntable 31 rotate clockwise one circle. During the process of the turntable 31 rotating half a circle, the conveying seat 32 moves to the right. When the metal rod 44 enters between the first metal plate 42 and the second metal plate 43, the electromagnet 312 is energized, and the pressure plate 315 and the rubber rib 316 press the copper material 100. The conveying seat 32 drives the copper material 100 to move to the right. When the metal rod 44 separates from the first metal plate 42 and the second metal plate 43, the conveying of the copper material 100 is completed. After the turntable 31 rotates half a circle, the conveying seat 32 is reset. After the conveying of the copper material 100 is completed, the copper material 100 with the through hole 300 punched out is located below the slicing die seat 22, while the copper material 100 below the hole cutting die seat 21 is intact.

[0069] Then the sector gear 215 drives the first gear 217 to rotate one circle. During the process of the first gear 217 rotating half a circle, the lifting seat 29 rises, and the copper material 100 at the cutting station is punched out with a through hole 300 through the shear rod 23. After the punching is completed, the shear rod 23 continues to rise, and the waste sheet enters the top of the cutting die seat 21; the shearing knife 24 punches out the circuit breaker copper sheet 200, and the circuit breaker copper sheet 200 is pushed above the slicing die seat 22. During the rising process of the lifting seat 29, the nozzle 53 sprays gas to blow down the waste sheet and the circuit breaker copper sheet 200, and the waste sheet and the circuit breaker copper sheet 200 enter the chambers on the left and right sides of the collection box 59 respectively. When the first gear 217 rotates half a circle again, the lifting seat 29, the shearing rod 23 and the shearing knife 24 are reset, and the outside air enters the lifting chamber 28 above the lifting seat 29 through the air inlet pipe 56 and the second one-way valve 58.

[0070] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A step-by-step shearing machine for circuit breaker copper sheets, comprising a long strip of copper material, the circuit breaker copper sheet being in a runway shape, and having through holes on both sides and in the middle of the circuit breaker copper sheet, characterized in that: It also includes a seat body, a shearing mechanism and a feeding mechanism; A through slot is provided on the top of the base body, and the first frame and the second frame are fixedly connected to the left and right sides of the base body respectively. A pair of baffles are fixedly connected to the top of the first frame and the second frame symmetrically in front and back. The left side of the top of the first frame and the top of the second frame are rotatably connected to rollers, and the copper material passes through the through slot and is placed on the rollers. The feeding mechanism and the shearing mechanism are respectively located on the first frame and the base, and the feeding mechanism and the shearing mechanism work alternately. The feeding mechanism is used to realize the fixed-length transportation of copper materials from left to right, and the shearing mechanism is used to cut holes and slice the copper materials.

2. A step-by-step shearing machine for circuit breaker copper sheets according to claim 1, characterized in that: The shearing mechanism includes a hole cutting die seat, a slicing die seat, a shearing rod, a shearing knife and a motor. The hole cutting die seat and the slicing die seat are fixedly connected to the top of the through slot symmetrically on the left and right. The hole cutting die seat is provided with a shearing hole corresponding to the through hole, and the slicing die seat is provided with a shearing groove corresponding to the circuit breaker copper sheet. A lifting cavity is symmetrically provided in the seat body, and a lifting seat is slidably connected in the lifting cavity. The shearing rod is fixed to the lifting seat on the left and is slidably connected to the seat body. A receiving groove is provided at the right bottom of the through slot. The position of the shearing knife corresponds to the receiving groove. A connecting rod is fixed between the shearing knife and the lifting seat on the right, and the connecting rod is slidably connected to the seat body. A hanging plate is fixedly connected to the first frame, and a supporting plate is fixedly connected to the lower part of the hanging plate. The motor is fixedly connected to the lower surface of the hanging plate. The motor is provided with a vertically downward output shaft, the output shaft is rotatably connected to the supporting plate, and a fan gear is fixedly connected to the output shaft, and the right side of the hanging plate and the supporting plate is rotatably connected to the first rotating shaft, and the first rotating shaft is fixedly connected to the first gear corresponding to the fan gear, and the number of teeth of the fan gear is equal to the number of teeth of the first gear. A shaft is rotatably connected between the first frame and the second frame, and the left end of the shaft is linked to the first rotating shaft through a bevel gear pair. A crankshaft is fixedly connected to the position of the shaft corresponding to the lifting seat, and a connecting rod is hinged between the crankshaft and the lifting seat.

3. The step-by-step shearing machine for circuit breaker copper sheets according to claim 2, characterized in that: The feeding mechanism includes a turntable and a conveying seat, and the left side of the hanging plate and the supporting plate is rotatably connected to the second rotating shaft, and the second rotating shaft is fixedly connected to the second gear corresponding to the fan gear, and the number of teeth of the fan gear is equal to the number of teeth of the second gear. The center of the turntable is fixedly connected to the top of the second rotating shaft, and a first pin is eccentrically provided on the turntable. A slide groove is opened on the top right side of the first frame, and the conveying seat is slidably connected to the slide groove. The bottom of the conveying seat is fixedly connected to the second pin shaft, and a swinging connection is hinged between the second pin shaft and the first pin shaft. The conveying seat is provided with an avoidance groove running through the left and right sides, the copper material passes through the avoidance groove, the bottom of the avoidance groove is provided with a groove, and a sliding cavity is provided under the conveying seat, the bottom of the sliding cavity is fixedly connected to an electromagnet, and a permanent magnet seat is slidably connected in the sliding cavity. When the electromagnet is energized, the polarity of the permanent magnet seat and the side where the electromagnet is close to each other is the same, a sliding rod is uniformly fixed on the permanent magnet seat in the longitudinal direction, the sliding rod is slidably connected to the conveying seat, the top of the sliding rod is fixed with a pressure plate, and the pressure plate is uniformly fixed with rubber ribs in the longitudinal direction.

4. The step-by-step shearing machine for circuit breaker copper sheets according to claim 3, characterized in that: An annular groove is provided on the upper surface of the hanging plate, and the annular groove coincides with the axis of the turntable. The front outer wall and inner wall of the annular groove are respectively fixed with an arc-shaped first metal plate and a second metal plate. A metal rod is fixed at the position corresponding to the annular groove on the lower surface of the turntable, and the metal rod is located on the side away from the first pin shaft. A control switch is fixed on the front side of the second frame, and also includes an external power supply. The positive pole of the external power supply is electrically connected to the second metal plate and the positive terminal of the motor through the control switch, and the negative pole of the external power supply is electrically connected to the negative terminal of the motor. The positive and negative terminals of the electromagnet are respectively electrically connected to the first wire and the second wire. The other end of the first wire is electrically connected to the second metal plate, and the other end of the second wire is electrically connected to the negative pole of the external power supply.

5. The step-by-step shearing machine for circuit breaker copper sheets according to claim 4, characterized in that: The bottom of the front and rear sides of the slide are provided with wire grooves, and the first wire and the second wire pass through the wire grooves on the front and rear sides respectively. The front and rear sides of the first frame are symmetrically fixed with intercepting plates, and the first wire passes through the intercepting plates.

6. The step-by-step shearing machine for circuit breaker copper sheets according to claim 3, characterized in that: A track groove is provided on the turntable, a screw is rotatably connected to the track groove, a track block is slidably connected to the track groove, and the track block is engaged with the screw, the first pin is fixed to the top of the track block, a knob is fixed to the head of the screw, and an operating port is provided on the left side of the first frame at the position corresponding to the knob.

7. The step-by-step shearing machine for circuit breaker copper sheets according to claim 2, characterized in that: The lifting seat is sealingly and slidingly connected in the lifting chamber, and a U-shaped cover frame is fixedly connected to the top of the seat body corresponding to the position of the cutting die seat and the slicing die seat, the opening of the cover frame faces forward, and a group of air injection pipes are fixedly connected to the rear side plate of the cover frame in a horizontal and uniform manner, the front end of the air injection pipe is fixedly connected to a nozzle, and the rear end of the same group of air injection pipes is integrally fixedly connected to a connecting pipe, an air outlet pipe is fixedly connected to the connecting pipe, and the head of the air outlet pipe is connected to the top of the lifting chamber, and an air inlet pipe is fixedly connected to the rear side of the seat body corresponding to the position of the top of the lifting chamber, and a first one-way valve and a second one-way valve are fixedly connected to the air outlet pipe and the air inlet pipe respectively, the first one-way valve allows gas to pass in the direction away from the lifting chamber, and the second one-way valve allows gas to pass in the direction pointing to the lifting chamber.

8. The step-by-step shearing machine for circuit breaker copper sheets according to claim 7, characterized in that: The upper surfaces of the hole cutting die seat and the slicing die seat are tilted downward from the back to the front, and the upper surfaces of the front sides of the hole cutting die seat and the slicing die seat are also tilted downward from the back to the front. A collection box is fixedly connected to the front side of the seat body, and a partition is fixedly connected to the collection box.

Images