Sheathing wire cutting machine and its operation method

Abstract

The invention discloses a sheath threading and wire cutting machine and an operation method thereof, and relates to the technical field of motor automatic assembly equipment. The sheath threading and wire cutting machine comprises a workbench, a conveying mechanism for conveying a stator, a feeding mechanism for feeding a sheath, an assembly pre-clamping mechanism for assembling and pre-clamping the sheath on a stator wire, and a wire cutting mechanism for cutting the stator wire. The feeding mechanism is arranged beside the conveying mechanism; the assembly pre-clamping mechanism and the wire cutting mechanism are sequentially distributed along the conveying direction of the conveying mechanism; the assembly pre-clamping mechanism has a pushing wire assembly for pushing the stator wire to position the stator wire, and the pushing wire assembly corresponds to the stator wire; the assembly pre-clamping mechanism is adopted to realize the limiting fastening of the sheath on the stator wire; the pushing positioning of the stator wire is realized by adopting the pushing wire assembly, so as to prevent the wire position from being offset, ensure the position accuracy of the stator wire, and facilitate the assembly of the sheath.

Description

Technical Field

[0001] The invention relates to the field of motor automatic assembly equipment technology, in particular to a sheath threading and wire cutting machine and an operating method thereof. Background Art

[0002] When assembling the motor, the sheath needs to be assembled on the stator wire. One sheath is put on two stator wires. After the sheath is put on, the sheath is pre-clamped so that the sheath is fastened to the outside of the two stator wires; then the stator wire is cut to a suitable length; the sheath threading and wire cutting machine in the prior art does not use a push wire assembly to achieve push positioning of the stator wire, which is not convenient for preventing the wire position from shifting, ensuring the position accuracy of the stator wire, and assembling the sheath; therefore, in view of this situation, it is urgent to develop a sheath threading and wire cutting machine and an operating method thereof to meet the needs of actual use. Summary of the invention

[0003] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a sheath threading and wire cutting machine and an operating method thereof, which realizes the assembly of the sheath on the stator wire and pre-clamps the sheath by adopting an assembly pre-clamping mechanism, thereby realizing the limited fastening of the sheath on the stator wire; realizes the push positioning of the stator wire by adopting a push wire assembly to prevent the wire position from being offset, thereby ensuring the position accuracy of the stator wire and facilitating the assembly of the sheath; and realizes the cutting of the stator wire by adopting a wire cutting mechanism, thereby meeting the assembly requirements.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A sheath threading and wire cutting machine comprises a workbench, a conveying mechanism for conveying a stator, a feeding mechanism for feeding a sheath, an assembly pre-clamping mechanism for assembling and pre-clamping the sheath on a stator wire, and a wire cutting mechanism for cutting the stator wire, wherein the conveying mechanism is arranged on the workbench; the feeding mechanism is arranged beside the conveying mechanism; the assembly pre-clamping mechanism and the wire cutting mechanism are sequentially distributed along the conveying direction of the conveying mechanism; the assembly pre-clamping mechanism has a pushing wire assembly for pushing the stator wire to position the stator wire, and the pushing wire assembly corresponds to the stator wire.

[0006] As a preferred solution: the assembly pre-clamping mechanism also includes a positioning component for positioning the stator, a sheath insertion component for inserting the sheath onto the stator wire, and a pre-clamping component for pre-clamping the sheath, the positioning component is located on the stator side of the conveying mechanism; the pushing wire component and the pre-clamping component both correspond to the stator wire; the sheath insertion component is located between the feeding component and the stator.

[0007] As a preferred solution: the pre-clamping assembly includes a transverse driving device and a pre-clamping device, the pre-clamping device includes a transverse driving cylinder, a first connecting rod, a second connecting rod, a first clamping block and a second clamping block, the transverse driving cylinder is installed at the output end of the transverse driving device, the rear end of the first connecting rod and the rear end of the second connecting rod are both hinged to the output end of the transverse driving cylinder, the first connecting rod and the second connecting rod are distributed in an "eight" shape, the rear end of the first clamping block is hinged to the front end of the first connecting rod, and the rear end of the second clamping block is hinged to the front end of the second connecting rod, and the transverse driving cylinder drives the front end of the first clamping block and the front end of the second clamping block to close or move away from each other through the first connecting rod and the second connecting rod.

[0008] As a preferred solution: the front end of the first clamping block and the front end of the second clamping block are closed together to form a pre-clamping groove, which is in the shape of an "8", the sheath is pre-clamped in the pre-clamping groove, and the stator wire is fastened in the sheath.

[0009] As a preferred solution: the wire pushing assembly includes a pushing drive device, a wire pushing block and a wire pushing device, the wire pushing block and the wire pushing device are both installed at the output end of the pushing drive device, the wire pushing block is movably connected to the stator wire, and the wire pushing block is located beside the wire pushing device.

[0010] As a preferred solution: the wire pushing device is a closing cylinder having two relatively distributed closing push blocks, the front ends of the two closing push blocks are each provided with a "V"-shaped groove, and the ends of the "V"-shaped groove have a wire holding opening that matches the stator wire.

[0011] As a preferred solution: the wire cutting mechanism includes a limiting component for limiting the stator and a cutting component for cutting the stator wire, and the cutting component is located beside the limiting component; the cutting component includes a longitudinal drive device, a vertical drive device, a telescopic drive device and a shearing device, the vertical drive device is installed at the output end of the longitudinal drive device, the telescopic drive device is installed at the output end of the vertical drive device, and the shearing device is installed at the output end of the telescopic drive device.

[0012] As a preferred solution: the shearing device includes a wire-approaching block, a shearing driving cylinder, a wire-dividing block and a cutter, the wire-dividing block is elastically mounted on the axial end of the shearing driving cylinder, the cutter is mounted on the axial end of the shearing driving cylinder, the wire-dividing block is movably connected to the wire-approaching block, and the cutter is movably corresponding to the stator wire.

[0013] As a preferred solution: a dividing sheet for separating two stator wires is provided on the upper side of the dividing block, a spring is provided between the dividing block and the output end of the shearing drive cylinder, and the cutter can be laterally moved below the dividing block.

[0014] The operating method of the sheath thread cutting machine comprises the following steps:

[0015] First, the conveying mechanism conveys the stator forward to the side of the assembly pre-clamping mechanism, and the push wire assembly pushes the stator wire to position it;

[0016] Second, the assembly pre-clamping mechanism assembles and pre-clamps the sheath on the feeding mechanism onto the stator wire;

[0017] Third, the conveying mechanism conveys the stator assembled with the sheath forward to the side of the wire cutting mechanism, and the wire cutting mechanism cuts off the excess stator wire.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the transmission of the stator, the feeding of the sheath, the assembly pre-clamping of the sheath and the cutting of the stator wire are automatically realized by adopting a conveying mechanism, a feeding mechanism, an assembly pre-clamping mechanism and a wire cutting mechanism, thereby improving work efficiency, reducing labor costs and improving accuracy; the assembly pre-clamping mechanism is adopted to realize the assembly of the sheath on the stator wire and pre-clamp the sheath, thereby realizing the limited fastening of the sheath on the stator wire; the push-pushing wire assembly is adopted to realize the push-pushing positioning of the stator wire, thereby preventing the wire position from being offset, ensuring the position accuracy of the stator wire and facilitating the assembly of the sheath; the wire cutting mechanism is adopted to realize the cutting of the stator wire, thereby meeting the assembly requirements.

[0019] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the sheath threading and cutting machine of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning component of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the assembly pre-clamping mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting drive assembly, the pushing wire assembly and the pre-clamping assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the push wire assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the pre-clamping assembly of the present invention;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the thread trimming mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the telescopic drive device and the shearing device of the present invention;

[0028] Fig. 9 For the present invention Figure 8 Enlarged view of the M in the middle;

[0029] Fig.10 It is a cross-sectional view of the shearing device of the present invention.

[0030] Description of the accompanying drawings:

[0031] In the figure: 10, workbench; 20, conveying mechanism; 30, feeding mechanism; 40, assembly pre-clamping mechanism; 41, positioning assembly; 42, lifting drive assembly; 43, wire pushing assembly; 431, pushing drive device; 432, wire pushing block; 433, wire pushing device; 4331, closing push block; 4332, wire holding port; 44, sheathing assembly; 441, manipulator; 442, clamping cylinder; 45, pre-clamping assembly; 451, traverse drive device; 452, pre-clamping device; 453, traverse drive cylinder; 454, first connecting rod; 455 , second connecting rod; 456, first clamping block; 457, second clamping block; 4571, pre-clamping groove; 50, wire cutting mechanism; 51, limiting assembly; 511, vertical drive device; 512, horizontal transfer drive device; 513, clamping limiting cylinder; 52, cutting assembly; 521, longitudinal drive device; 522, vertical drive device; 523, telescopic drive device; 524, shearing device; 5241, wire block; 5242, shearing drive cylinder; 5243, wire dividing block; 5244, wire dividing piece; 5245, spring; 5246, cutter. DETAILED DESCRIPTION

[0032] The present invention Figure 1 As shown in FIG. 10 , a sheath threading and wire cutting machine includes a workbench 10, a conveying mechanism 20 for conveying a stator, a feeding mechanism 30 for feeding a sheath, an assembly and pre-clamping mechanism 40 for assembling and pre-clamping the sheath on a stator wire, and a wire cutting mechanism 50 for cutting the stator wire, wherein:

[0033] The conveying mechanism 20 is arranged on the workbench 10; the feeding mechanism 30 is arranged beside the conveying mechanism 20; the assembly pre-clamping mechanism 40 and the wire cutting mechanism 50 are distributed in sequence along the conveying direction of the conveying mechanism 20; the assembly pre-clamping mechanism 40 has a pushing wire component 43 for pushing the stator wire to position the stator wire, and the pushing wire component 43 corresponds to the stator wire.

[0034] The conveying mechanism 20 includes a conveying drive motor and a conveying belt. The conveying belt is installed at the output end of the conveying drive motor, and the stator is placed on the conveying belt.

[0035] The feeding mechanism 30 includes a vibration plate and a straight vibration feeder arranged at the discharge end of the vibration plate.

[0036] When assembling the motor, the sheath needs to be assembled on the stator wire. One sheath is put on two stator wires. After the sheath is installed, the sheath is pre-clamped so that the sheath is fastened to the outside of the two stator wires; then the stator wire is cut to a suitable length.

[0037] By adopting the conveying mechanism 20, the feeding mechanism 30, the assembly pre-clamping mechanism 40 and the wire cutting mechanism 50, the conveying of the stator, the feeding of the sheath, the assembly pre-clamping of the sheath and the cutting of the stator wire are automatically realized, thereby improving work efficiency, reducing labor costs and improving accuracy; by adopting the assembly pre-clamping mechanism 40, the sheath is assembled on the stator wire and pre-clamped, thereby realizing the limited fastening of the sheath on the stator wire; by adopting the push wire assembly 43, the push positioning of the stator wire is realized, the wire position deviation is prevented, the position accuracy of the stator wire is guaranteed, and the assembly of the sheath is convenient; by adopting the wire cutting mechanism 50, the stator wire is cut, thereby meeting the assembly requirements.

[0038] The assembly pre-clamping mechanism 40 also includes a positioning component 41 for positioning the stator, a sheath insertion component 44 for inserting the sheath onto the stator wire, and a pre-clamping component 45 for pre-clamping the sheath. The positioning component 41 is located on the stator side of the conveying mechanism 20; the pushing wire component 43 and the pre-clamping component 45 both correspond to the stator wire; the sheath insertion component 44 is located between the feeding component and the stator.

[0039] The sheath threading assembly 44 includes a manipulator 441 and a clamping cylinder 442, which is installed at the output end of the manipulator 441 and is located between the feeding mechanism 30 and the stator; the pushing wire assembly 43 and the pre-clamping assembly 45 are also connected to the lifting drive assembly 42, and the pushing wire assembly 43 and the pre-clamping assembly 45 are installed at the output end of the lifting drive assembly 42.

[0040] The positioning component 41 is a clamping cylinder, which is arranged beside the conveying mechanism 20; the positioning component 41 positions the stator, the pushing wire component 43 pushes the stator wire to position, the sheath threading component 44 threads the sheath on the stator wire, and the pre-clamping component 45 pre-clamps the sheath on the outside of the stator wire.

[0041] The positioning of the stator is achieved by adopting the positioning component 41, thereby ensuring the position accuracy of the stator; the push-pushing wire component 43 is used to achieve the push-pushing positioning of the stator wire, thereby facilitating the insertion of the sheath; the sheath insertion component 44 is used to achieve the insertion of the sheath on the stator wire; the pre-clamping component 45 is used to achieve the pre-clamping of the sheath, thereby achieving the fixation and limitation of the sheath.

[0042] The pre-clamping assembly 45 includes a transverse driving device 451 and a pre-clamping device 452. The pre-clamping device 452 includes a transverse driving cylinder 453, a first connecting rod 454, a second connecting rod 455, a first clamping block 456 and a second clamping block 457. The transverse driving cylinder 453 is installed at the output end of the transverse driving device 451. The rear ends of the first connecting rod 454 and the second connecting rod 455 are both hinged to the output end of the transverse driving cylinder 453. The first connecting rod 454 and the second connecting rod 455 are distributed in an "eight" shape. The rear end of the first clamping block 456 is hinged to the front end of the first connecting rod 454, and the rear end of the second clamping block 457 is hinged to the front end of the second connecting rod 455. The transverse driving cylinder 453 drives the front ends of the first clamping block 456 and the second clamping block 457 to close or move away from each other through the first connecting rod 454 and the second connecting rod 455.

[0043] The transverse driving device 451 drives the pre-clamping device 452 to move transversely, and the pre-clamping device 452 realizes pre-clamping of the stator wire.

[0044] The front end of the first clamping block 456 and the front end of the second clamping block 457 are closed together to form a pre-clamping groove 4571, and the pre-clamping groove 4571 is in the shape of an "8". The sheath is pre-clamped in the pre-clamping groove 4571, and the stator wire is fastened in the sheath; the pre-clamping groove 4571 is used to facilitate the fastening of the sheath, and the pre-clamping groove 4571 is set according to the shape of the stator wire.

[0045] The wire pushing assembly 43 includes a pushing drive device 431, a wire pushing block 432 and a wire pushing device 433. The wire pushing block 432 and the wire pushing device 433 are both installed at the output end of the pushing drive device 431. The wire pushing block 432 is movably connected to the stator wire, and the wire pushing block 432 is located beside the wire pushing device 433.

[0046] The wire pushing device 433 is a closing cylinder having two relatively distributed closing push blocks 4331. The front ends of the two closing push blocks 4331 are both provided with "V"-shaped grooves, and the ends of the "V"-shaped grooves have wire accommodating openings 4332 that match the stator wires.

[0047] The push driving device 431 drives the wire-resisting block 432 and the wire-pushing device 433 to move forward to the side of the stator wire. The wire-resisting block 432 is used to realize the initial limiting and tightening of the stator wire, and the wire-pushing device 433 is used to further close and align the two stator wires to facilitate the subsequent installation of the sheath.

[0048] The wire cutting mechanism 50 includes a limiting component 51 for limiting the stator and a cutting component 52 for cutting the stator wire, and the cutting component 52 is located beside the limiting component 51; the cutting component 52 includes a longitudinal driving device 521, a vertical driving device 522, a telescopic driving device 523 and a cutting device 524, and the vertical driving device 522 is installed at the output end of the longitudinal driving device 521, the telescopic driving device 523 is installed at the output end of the vertical driving device 522, and the cutting device 524 is installed at the output end of the telescopic driving device 523.

[0049] The limit assembly 51 realizes the limit of the stator. The limit assembly 51 includes a vertical drive device 511, a lateral transfer drive device 512 and a clamping limit cylinder 513. The lateral transfer drive device 512 is installed at the output end of the vertical drive device 511, and the clamping limit cylinder 513 is installed at the output end of the lateral transfer drive device 512.

[0050] The position movement of the clamping limit cylinder 513 is ensured by adopting the vertical driving device 511 and the horizontal transfer driving device 512, and the position movement of the shearing device 524 is achieved by adopting the longitudinal driving device 521, the vertical driving device 522 and the telescopic driving device 523.

[0051] The lifting drive assembly 42, the longitudinal drive device 521, the vertical drive device 522 and the vertical movement drive device 511 all include a drive motor, a screw rod and a slide seat. The screw rod is installed at the output end of the drive motor, and the screw rod is rotatably matched with the slide seat.

[0052] The transverse driving device 451, the push driving device 431, the telescopic driving device 523 and the transverse transfer driving device 512 all use a driving cylinder and a sliding seat. The sliding seat is installed on the shaft end of the driving cylinder and serves as an output end.

[0053] The shearing device 524 includes a line-approaching block 5241, a shearing driving cylinder 5242, a line-dividing block 5243 and a cutter 5246. The line-dividing block 5243 is elastically mounted on the axial end of the shearing driving cylinder 5242, and the cutter 5246 is mounted on the axial end of the shearing driving cylinder 5242. The line-dividing block 5243 is movably connected to the line-approaching block 5241, and the cutter 5246 is movably corresponding to the stator wire.

[0054] The wire splitting block 5243 is used to separate the two stator wires, which makes it easier to cut one stator wire and meets the wire cutting requirements.

[0055] A dividing plate 5244 for separating two stator wires is provided on the upper side of the dividing block 5243, and a spring 5245 is provided between the dividing block 5243 and the output end of the shear drive cylinder 5242. The cutter 5246 is laterally movable and is located below the dividing block 5243. The spring 5245 ensures that the cutter 5246 can move laterally relative to the dividing block 5243 to shear the stator wires.

[0056] The operating method of the sheath thread cutting machine comprises the following steps:

[0057] First, the conveying mechanism conveys the stator forward to the side of the assembly pre-clamping mechanism, and the push wire assembly pushes the stator wire to position it;

[0058] Second, the assembly pre-clamping mechanism assembles and pre-clamps the sheath on the feeding mechanism onto the stator wire;

[0059] Third, the conveying mechanism conveys the stator assembled with the sheath forward to the side of the wire cutting mechanism, and the wire cutting mechanism cuts off the excess stator wire.

[0060] The design focus of the present invention is that the transmission of the stator, the feeding of the sheath, the assembly pre-clamping of the sheath and the cutting of the stator wire are automatically realized by adopting a conveying mechanism, a feeding mechanism, an assembly pre-clamping mechanism and a wire cutting mechanism, thereby improving work efficiency, reducing labor costs and improving accuracy; the assembly pre-clamping mechanism is adopted to realize the assembly of the sheath on the stator wire and pre-clamp the sheath, thereby realizing the limited fastening of the sheath on the stator wire; the push-pushing wire assembly is adopted to realize the push-pushing positioning of the stator wire, thereby preventing the wire position from being offset, ensuring the position accuracy of the stator wire and facilitating the assembly of the sheath; the wire cutting mechanism is adopted to realize the cutting of the stator wire, thereby meeting the assembly requirements.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sheath thread cutting machine, characterized in that: The invention comprises a workbench, a conveying mechanism for conveying the stator, a feeding mechanism for feeding the sheath, an assembly pre-clamping mechanism for assembling and pre-clamping the sheath on the stator wire, and a wire cutting mechanism for cutting the stator wire. The conveying mechanism is arranged on the workbench; the feeding mechanism is arranged beside the conveying mechanism; the assembly pre-clamping mechanism and the wire cutting mechanism are sequentially distributed along the conveying direction of the conveying mechanism; the assembly pre-clamping mechanism has a pushing wire assembly for pushing the stator wire to position the stator wire, and the pushing wire assembly corresponds to the stator wire; the assembly pre-clamping mechanism also includes a positioning assembly for positioning the stator, a sheath threading assembly for threading the sheath on the stator wire, and a pre-clamping assembly for pre-clamping the sheath, and the positioning assembly is located beside the stator side of the conveying mechanism; The pushing wire assembly and the pre-clamping assembly both correspond to the stator wire; the sheathing assembly is located between the feeding assembly and the stator; the pre-clamping assembly includes a transverse driving device and a pre-clamping device, the pre-clamping device includes a transverse driving cylinder, a first connecting rod, a second connecting rod, a first clamping block and a second clamping block, the transverse driving cylinder is installed at the output end of the transverse driving device, the rear end of the first connecting rod and the rear end of the second connecting rod are both hinged to the output end of the transverse driving cylinder, the first connecting rod and the second connecting rod are distributed in an "eight" shape, the rear end of the first clamping block is hinged to the front end of the first connecting rod, the rear end of the second clamping block is hinged to the front end of the second connecting rod, and the transverse driving cylinder drives the front end of the first clamping block and the front end of the second clamping block to close or move away from each other through the first connecting rod and the second connecting rod.

2. The sheath thread cutting machine according to claim 1, characterized in that: The front end of the first clamping block and the front end of the second clamping block are closed together to form a pre-clamping groove, which is in the shape of an "8". The sheath is pre-clamped in the pre-clamping groove, and the stator wire is fastened in the sheath.

3. The sheath thread cutting machine according to claim 1, characterized in that: The wire pushing assembly includes a pushing drive device, a wire pushing block and a wire pushing device. The wire pushing block and the wire pushing device are both installed at the output end of the pushing drive device. The wire pushing block is movably connected to the stator wire and is located beside the wire pushing device.

4. The sheath thread cutting machine according to claim 3, characterized in that: The wire pushing device is a closing cylinder having two relatively distributed closing push blocks, the front ends of the two closing push blocks are both provided with a "V"-shaped groove, and the ends of the "V"-shaped groove have a wire holding opening matching the stator wire.

5. The sheath thread cutting machine according to claim 1, characterized in that: The wire cutting mechanism includes a limiting component for limiting the stator and a cutting component for cutting the stator wire, and the cutting component is located beside the limiting component; the cutting component includes a longitudinal driving device, a vertical driving device, a telescopic driving device and a shearing device, the vertical driving device is installed at the output end of the longitudinal driving device, the telescopic driving device is installed at the output end of the vertical driving device, and the shearing device is installed at the output end of the telescopic driving device.

6. The sheath thread cutting machine according to claim 5, characterized in that: The shearing device includes a wire-approaching block, a shearing driving cylinder, a wire-dividing block and a cutter. The wire-dividing block is elastically mounted on the axial end of the shearing driving cylinder, and the cutter is mounted on the axial end of the shearing driving cylinder. The wire-dividing block is movably connected to the wire-approaching block, and the cutter is movably corresponding to the stator wire.

7. The sheath thread cutting machine according to claim 6, characterized in that: A wire splitting sheet for separating two stator wires is arranged on the upper side of the wire splitting block, a spring is arranged between the wire splitting block and the output end of the shearing drive cylinder, and the cutter can be laterally moved and located below the wire splitting block.

8. A method for operating the sheathing wire cutting machine according to any one of claims 1 to 7, characterized in that: The steps include: First, the conveying mechanism conveys the stator forward to the side of the assembly pre-clamping mechanism, and the push wire assembly pushes the stator wire to position it; Second, the assembly pre-clamping mechanism assembles and pre-clamps the sheath on the feeding mechanism onto the stator wire; Third, the conveying mechanism conveys the stator assembled with the sheath forward to the side of the wire cutting mechanism, and the wire cutting mechanism cuts off the excess stator wire.

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