Inner winding type winding machine and its winding method

Abstract

The present invention discloses an inner winding type winding machine and its winding method, which relates to the technical field of motor automatic assembly equipment. The inner winding type winding machine includes a frame, a wire pulling mechanism for driving the wire to move and wind the winding pole blocks of the stator, a rotary locking mechanism for fixing the stator and driving the stator to rotate, and a main wire cutting mechanism for cutting and clamping the wire; the rotary locking mechanism has a rotatable jig seat for placing the stator; the main wire cutting mechanism has a rotatable main air shear; the wire nozzle is movably located beside the rotatable jig seat, the main air shear is located beside the jig seat, the auxiliary air shear is movably located above the jig seat, and the wire nozzle, the main air shear and the auxiliary air shear all correspond to the jig seat; through the mutual cooperation of the rotary locking mechanism, the wire pulling mechanism and the main wire cutting mechanism, the automatic operations of fixing the stator, winding the winding pole blocks, and cutting the tail end of the wire during the winding process are realized, with high winding accuracy and high working efficiency.

Description

Technical Field

[0001] The present invention relates to the technology in the field of motor automatic assembly, and in particular to an inner winding type winding machine and a winding method thereof. Background Art

[0002] When winding the stator, it is necessary to wind the winding pole blocks in sequence. Before winding, the wire is hung on the wire hanging position of the fixture seat and the stator hanging position to fix the movable wire, and the tail end of the wire is cut during the winding process; winding machines are widely used in the winding process of the winding pole blocks of the stator. However, the current winding machines have insufficient automation, low processing efficiency, and manual placement and removal of the stator during operation, which is not conducive to improving the processing efficiency and quality of stator winding; on the other hand, the winding machines in the prior art have technical problems such as low winding efficiency, low winding efficiency, inconsistent winding tightness, and low wire cutting accuracy; therefore, in view of this situation, there is an urgent need to develop an inner winding type winding machine and a winding method thereof to meet the actual use requirements. Summary of the Invention

[0003] In view of this, in view of the deficiencies of the prior art, the main purpose of the present invention is to provide an inner winding type winding machine and a winding method thereof, which realize the automatic operations of fixing the stator, winding the winding pole blocks, and cutting the tail end of the wire during the winding process through the mutual cooperation of a rotary locking mechanism, a wire pulling mechanism, and a main wire cutting mechanism, with high automation, high winding accuracy, and high working efficiency.

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

[0005] An inner winding type winding machine includes a frame, a wire pulling mechanism for driving the wire to move to wind the winding pole blocks of the stator, a rotary locking mechanism for fixing the stator and driving the stator to rotate, and a main wire cutting mechanism for cutting and clamping the wire; a workbench for installing the above-mentioned mechanisms is provided on the frame. The wire pulling mechanism has a movable wire nozzle and a movable secondary air shear, and the secondary air shear is located beside the wire nozzle; the rotary locking mechanism has a rotatable fixture seat for placing the stator; the main wire cutting mechanism has a rotatable main air shear; the wire nozzle is movably located beside the rotatable fixture seat, the main air shear is located beside the fixture seat, the secondary air shear is movably located above the fixture seat, and the wire nozzle, the main air shear, and the secondary air shear all correspond to the fixture seat.

[0006] As a preferred solution: The wire-drawing mechanism includes a wire nozzle flipping assembly, a vertical driving assembly, a secondary air shear assembly, a horizontal driving assembly, and a longitudinal driving assembly. The longitudinal driving assembly has a longitudinally movable longitudinal slide, the horizontal driving assembly has a laterally movable lateral slide, and the vertical driving assembly has a vertically movable vertical slide. The horizontal driving assembly is installed on the longitudinal slide, and the vertical driving assembly is installed on the lateral slide. The wire nozzle flipping assembly is installed on the vertical slide, and the secondary air shear assembly is installed on the lateral slide. The wire nozzle flipping assembly has a rotatable rotating shaft, and the center of the wire outlet end of the above-mentioned wire nozzle is located on the extension line of the central axis of the rotating shaft.

[0007] As a preferred solution: The wire nozzle flipping assembly further includes a flipping driving cylinder, a rocker arm, and a wire nozzle seat. The flipping driving cylinder is installed on the vertical slide, the shaft end of the flipping driving cylinder is connected to the rocker arm, the rocker arm is tightly sleeved on the rotating shaft, the rotating shaft is rotatably installed on the vertical slide, the wire nozzle seat is tightly sleeved on the rotating shaft, and the above-mentioned wire nozzle is tightly installed at the front end of the wire nozzle seat.

[0008] As a preferred solution: The secondary air shear assembly further includes a lifting driving motor, a lifting lead screw, and a mounting plate. The lifting driving motor is installed on the lateral slide, the shaft end of the lifting driving motor is connected to the lifting lead screw, and the lifting lead screw is rotationally matched with the mounting plate. The above-mentioned secondary air shear is installed on the mounting plate. The lifting driving motor drives the secondary air shear to lift.

[0009] As a preferred solution: The rotation locking mechanism further includes a jig assembly for placing and fixing the stator, an opening and closing driving assembly for driving the jig assembly to fix or release the stator, and a rotation driving motor for driving the stator to rotate. The jig assembly includes the above-mentioned jig seat and a pressing piece for pressing or releasing the stator on the jig seat. The pressing piece is elastically and separably abutted against the upper side wall of the jig seat. The opening and closing driving assembly is separably abutted against the pressing piece. The rotation driving motor is vertically installed on the workbench, and the shaft end of the rotation driving motor is connected to the jig seat.

[0010] As a preferred solution: The jig assembly further includes a support block and a return spring. The support block is tightly installed on the side wall of the jig seat. The above-mentioned pressing piece is rotatably installed on the support block. The return spring is arranged between the lower end of the pressing piece and the side wall of the jig seat. There are two pressing pieces, support blocks, and return springs, and the two pressing pieces, support blocks, and return springs are symmetrically distributed on the side wall of the jig seat respectively.

[0011] As a preferred solution: The opening and closing driving assembly includes a first opening and closing driving device for driving a pressing piece on the left side wall of the fixture seat to press the stator and a second opening and closing driving device for driving a pressing piece on the right side wall of the fixture seat to press the stator; The first opening and closing driving device has a first push block that can move horizontally, and the first push block is detachably abutted against the pressing piece on the left side of the fixture seat; The second opening and closing driving device has a second push block that can move horizontally, and the second push block is detachably abutted against the pressing piece on the right side of the fixture seat.

[0012] As a preferred solution: The first opening and closing driving device further includes a first driving cylinder, a first connecting rod and a first guiding rod. The shaft end of the first driving cylinder is connected to the first connecting rod, the first guiding rod is longitudinally and fixedly installed on the first connecting rod, and the above-mentioned first push block is fixedly installed on the first guiding rod; The second opening and closing driving device further includes a second driving cylinder, a second connecting rod and a second guiding rod. The shaft end of the second driving cylinder is connected to the second connecting rod, the second guiding rod is longitudinally and fixedly installed on the second connecting rod, and the above-mentioned second push block is fixedly installed on the second guiding rod; The first connecting rod and the second connecting rod are arranged horizontally and in parallel, the second connecting rod can move horizontally through the first guiding rod, and the first connecting rod can move horizontally through the second guiding rod.

[0013] As a preferred solution: The main wire cutting mechanism further includes a longitudinal driving assembly and a flipping driving assembly. The longitudinal driving assembly includes a longitudinal driving cylinder and a longitudinal sliding seat. The longitudinal driving cylinder is installed on the workbench, the longitudinal sliding seat is slidably located on the workbench, and the shaft end of the longitudinal driving cylinder is connected to the longitudinal sliding seat; The flipping driving assembly includes a flipping driving cylinder and a rotating rod. The flipping driving cylinder is installed on the longitudinal sliding seat, the rotating rod is rotatably installed on the longitudinal sliding seat, and the shaft end of the flipping driving cylinder is connected to the rotating rod; The above-mentioned main air shear is fixedly installed on the rotating rod.

[0014] The winding method of the inner winding type winding machine includes the following steps:

[0015] First, place the stator on the rotary locking mechanism, and the rotary locking mechanism fixes the stator on the fixture seat;

[0016] Second, the wire nozzle of the wire pulling mechanism drives the wire to pass through the main air shear from right to left, and the main air shear clamps the tail end of the wire;

[0017] Third, the wire nozzle flipping assembly drives the wire nozzle to be in a vertical state. The wire nozzle winds the wire on the fixture seat and hangs the wire at the wire hanging position of the fixture seat; Then, after hanging the wire at the wire hanging position of the stator, the wire nozzle enters the outside of the winding pole block of the stator, and the auxiliary air shear descends to cut the wire between the auxiliary air shear and the wire hanging position of the fixture seat; The main air shear flips 180 degrees to put the cut waste wire into the waste wire box at the rear;

[0018] Fourth, the nozzle flipping assembly drives the nozzle to be in a horizontal state, the longitudinal driving assembly and the vertical driving assembly drive the nozzle to move longitudinally and vertically, the rotation driving motor drives the stator to rotate and swing alternately left and right, and the nozzle winds the wire around the winding pole block of the stator with the wire;

[0019] Fifth, when the wire winds from the outside of the winding pole block of the stator to the inside of the winding pole block, the auxiliary air shear descends to cut the wire between the wire hanging position of the fixture seat and the wire hanging position of the stator; the auxiliary air shear rises, and the nozzle winds the wire from the inside of the winding pole block to the outside of the winding pole block to complete the winding of one winding pole block;

[0020] Sixth, after winding a single winding pole block, the rotation driving motor drives the stator to rotate to wind the next winding pole block, and all the winding pole blocks are wound in turn;

[0021] Seventh, after all the winding pole blocks of the stator are wound, the main air shear flips 180 degrees, the main air shear flips from the position of the waste wire box at the rear side to the side of the fixture seat, the main air shear cuts and clamps the wound wire for winding the next stator; the opening and closing driving assembly loosens the stator from the fixture seat for discharging.

[0022] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, through the mutual cooperation of the rotation locking mechanism, the wire pulling mechanism and the main wire cutting mechanism, the automation operations of fixing the stator, winding the winding pole block, and cutting the tail end of the wire during the winding process are realized. The automation degree is high, the winding accuracy is high, and the work efficiency is high; the opening and closing driving assembly is used to automatically drive the stator to be fixed or loosened on the fixture seat, and the rotation driving motor drives the fixture seat and the stator to rotate, with a clever design and less occupied area; the longitudinal driving assembly, the transverse driving assembly and the vertical driving assembly are used to drive the nozzle to move longitudinally, transversely and vertically, and the nozzle flipping assembly drives the nozzle to flip, meeting the position requirements of the nozzle and improving the work efficiency.

[0023] To more clearly illustrate the structural features and functions of the present invention, the following will be described in detail in combination with the drawings and specific embodiments. Brief Description of the Drawings

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the internal winding machine of the present invention;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the main part of the internal winding machine of the present invention;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the first perspective of the rotation locking mechanism of the present invention;

[0027] Figure 4Schematic perspective view of the second angle of the rotation locking mechanism of the present invention;

[0028] Figure 5 Schematic perspective view of the third angle of the rotation locking mechanism of the present invention;

[0029] Figure 6 Schematic perspective view of the jig assembly and the rotation drive motor of the present invention;

[0030] Figure 7 Schematic perspective view of the first angle of the wire pulling mechanism of the present invention;

[0031] Figure 8 Schematic perspective view of the second angle of the wire pulling mechanism of the present invention;

[0032] Figure 9 Schematic perspective view of the third angle of the wire pulling mechanism of the present invention;

[0033] Figure 10 Schematic perspective view of the main wire cutting mechanism of the present invention.

[0034] Explanation of the attached drawing reference numerals:

[0035] In the figure: 10, frame; 11, workbench; 20, tensiometer; 30, rotary locking mechanism; 31, fixture assembly; 311, fixture base; 3111, wire feeding part; 3112, connecting part; 3113, wire hanging post; 312, pressing piece; 3121, downward pressing part; 3122, rotating part; 313, supporting block; 314, return spring; 32, rotary drive motor; 33, opening and closing drive assembly; 331, first opening and closing drive device; 3311, first drive cylinder; 3312, first connecting rod; 3313, first guide rod; 3314, first push block; 332, second opening and closing drive device; 3321, second drive cylinder; 3322, second connecting rod; 3323, second guide rod; 3324, second push block; 40, wire pulling mechanism; 41, wire nozzle flipping assembly; 411, flipping drive cylinder; 412, rocker arm; 413, limiting rod; 414, rotating shaft; 415, wire nozzle seat; 416, wire nozzle; 42, vertical drive assembly; 421, vertical drive motor; 422, transmission belt; 423, vertical sliding seat; 43, auxiliary air shear assembly; 431, lifting drive motor; 432, lifting lead screw; 433, mounting plate; 434, auxiliary air shear; 44, horizontal drive assembly; 441, horizontal drive motor; 442, horizontal sliding seat; 443, wire passing wheel; 45, longitudinal drive assembly; 451, longitudinal drive device; 452, longitudinal drive motor; 453, longitudinal sliding seat; 50, main wire cutting mechanism; 51, longitudinal drive assembly; 511, longitudinal drive cylinder; 512, longitudinal sliding seat; 52, flipping drive assembly; 521, flipping drive cylinder; 522, rotating rod; 53, main air shear; 54, waste wire box; 60, stator; 61, winding pole block; 62, notch; 63, wire hanging piece. Detailed implementation manner

[0036] As shown in the present invention Figures 1 to 10 shown, an inner winding type winding machine includes a frame 10, a wire pulling mechanism 40 for driving a wire to move to wind the winding pole block of the stator, a rotary locking mechanism 30 for fixing the stator and driving the stator to rotate, and a main wire cutting mechanism 50 for cutting and clamping the wire; wherein:

[0037] The rack 10 is provided with a workbench 11 for installing the above-mentioned various mechanisms. The wire pulling mechanism 40, the rotary locking mechanism 30, and the main wire cutting mechanism 50 are sequentially distributed on the workbench 11 from front to back. The wire pulling mechanism 40 has a movable wire nozzle 416 and a movable secondary air shear 434. The secondary air shear 434 is located beside the wire nozzle 416. The rotary locking mechanism 30 has a rotatable jig base 311 for placing the stator. The main wire cutting mechanism 50 has a flipable main air shear 53. The wire nozzle 416 is movably located beside the rotatable jig base 311. The main air shear 53 is located beside the jig base 311. The secondary air shear 434 is movably located above the jig base 311. The wire nozzle 416, the main air shear 53, and the secondary air shear 434 all correspond to the jig base 311.

[0038] A tensiometer 20 for providing tension to the wire is provided on the workbench 11. The wire reaches the wire pulling mechanism A40 through the tensiometer 20. The stator 60 has a plurality of winding pole blocks 61. There is a notch 62 for the wire nozzle 416 to pass through the wire between every two adjacent winding pole blocks 61. Each stator has three phases. The stator has three hanging wire pieces 63 for hanging the wire. After winding one phase, the wire needs to be hung on the hanging wire piece 63 before continuing to wind. During the assembly of the motor, the winding pole blocks of the stator need to be wound. The jig base 311 has a hanging wire post 3113 for hanging the wire. Before winding, the wire needs to be hung at the hanging wire position (at the hanging wire post 3113) of the jig base 311 and the hanging wire position (at the hanging wire piece 63) of the stator to fix the freely movable wire. The wire for hanging and the wire wound between adjacent winding skeletons are called transition wires. The wire remains continuous during the winding process of the plurality of winding pole blocks.

[0039] The stator is placed on the rotary locking mechanism 30, and the rotary locking mechanism 30 fixes the stator on the jig. The wire reaches the wire pulling mechanism 40 through the tensiometer 20. The rotary drive motor of the rotary locking mechanism 30 drives the stator to swing left and right. The wire nozzle of the wire pulling mechanism 40 winds the wire around the winding pole blocks on the jig. The secondary air shear of the wire pulling mechanism 40 cooperates with the main wire cutting mechanism 50 to cut the tail end of the wire during the winding process. Through the mutual cooperation of the rotary locking mechanism 30, the wire pulling mechanism 40, and the main wire cutting mechanism 50, the automated operations of fixing the stator, winding the winding pole blocks, and cutting the tail end of the wire during the winding process are realized. The automation degree is high, the winding accuracy is high, and the work efficiency is high.

[0040] The rotary locking mechanism 30 further includes a fixture assembly 31 for placing and fixing the stator, an opening and closing drive assembly 33 for driving the fixture assembly 31 to fix or release the stator, and a rotary drive motor 32 for driving the stator to rotate; the fixture assembly 31 includes the above-mentioned fixture base 311 and a pressing piece 312 for pressing or releasing the stator on the fixture base 311, and the pressing piece 312 is elastically and detachably abutted against the upper side wall of the fixture base 311; the opening and closing drive assembly 33 is detachably abutted against the pressing piece 312 to drive the pressing piece 312 to press or release the stator; the rotary drive motor 32 is vertically installed on the workbench 11, and the shaft end of the rotary drive motor 32 is connected to the fixture base 311 to drive the fixture base 311 and the stator to rotate.

[0041] The opening and closing drive assembly 33 automatically drives the stator to be fixed or released on the fixture base 311, and the rotary drive motor 32 drives the fixture base 311 and the stator to rotate. The opening and closing drive assembly 33 is detachably abutted against the fixture assembly 31, which not only ensures the fixing or releasing of the stator but also ensures the rotation of the fixture base 311, avoiding the position interference of the fixture base 311 during rotation; the design is ingenious, the occupied area is small, and the degree of automation is high.

[0042] The fixture assembly 31 further includes a support block 313 and a return spring 314. The support block 313 is fixedly installed on the side wall of the fixture base 311, and the above-mentioned pressing piece 312 is rotatably installed on the support block 313. The return spring 314 is arranged between the lower end of the pressing piece 312 and the side wall of the fixture base 311.

[0043] There are two pressing pieces 312, support blocks 313 and return springs 314, and the two pressing pieces 312, support blocks 313 and return springs 314 are symmetrically distributed on the side walls of the fixture base 311 respectively; when a force towards the fixture base 311 is applied to the lower end of the pressing piece 312 and the lower end of the pressing piece 312 approaches the side wall of the fixture base 311, the upper end of the pressing piece 312 moves away from the fixture base 311 relative to the support block 313, and the stator in the fixture base 311 is released by the pressing piece 312 for feeding and discharging the stator; the return spring 314 drives the pressing piece 312 to reset, and the upper end of the pressing piece 312 moves towards the fixture base 311 relative to the support block 313, and the stator in the fixture base 311 is fixed by the pressing piece 312, realizing the stator being fastened in the fixture base 311; realizing the automatic fixing or releasing of the stator in the fixture base 311; the pressing pieces 312 are arranged on both sides of the fixture base 311 respectively, making the balance of the pressing piece 312 pressing down better and improving the stability of the overall structure.

[0044] The opening and closing driving assembly 33 includes a first opening and closing driving device 331 for driving a pressing piece 312 on the left side wall of the fixture seat 311 to press the stator and a second opening and closing driving device 332 for driving a pressing piece 312 on the right side wall of the fixture seat 311 to press the stator; the first opening and closing driving device 331 has a first pushing block 3314 that can move horizontally, and the first pushing block 3314 is detachably abutted against the pressing piece 312 on the left side of the fixture seat 311; the second opening and closing driving device 332 has a second pushing block 3324 that can move horizontally, and the second pushing block 3324 is detachably abutted against the pressing piece 312 on the right side of the fixture seat 311.

[0045] The first opening and closing driving device 331 further includes a first driving cylinder 3311, a first connecting rod 3312 and a first guiding rod 3313. The shaft end of the first driving cylinder 3311 is connected to the first connecting rod 3312. The first guiding rod 3313 is longitudinally and fixedly installed on the first connecting rod 3312, and the above-mentioned first pushing block 3314 is fixedly installed on the first guiding rod 3313; the second opening and closing driving device 332 further includes a second driving cylinder 3321, a second connecting rod 3322 and a second guiding rod 3323. The shaft end of the second driving cylinder 3321 is connected to the second connecting rod 3322. The second guiding rod 3323 is longitudinally and fixedly installed on the second connecting rod 3322, and the above-mentioned second pushing block 3324 is fixedly installed on the second guiding rod 3323; the first connecting rod 3312 and the second connecting rod 3322 are arranged horizontally and in parallel. The second connecting rod 3322 can move horizontally through the first guiding rod 3313, and the first connecting rod 3312 can move horizontally through the second guiding rod 3323.

[0046] The first driving cylinder 3311 drives the first connecting rod 3312 to move horizontally, and the first guiding rod 3313 drives the first pushing block 3314 to abut against or release the pressing piece 312 on the left side wall of the fixture seat 311; the second driving cylinder 3321 drives the second connecting rod 3322 to move horizontally, and the second guiding rod 3323 drives the second pushing block 3324 to abut against or release the pressing piece 312 on the right side wall of the fixture seat 311; the first pushing block 3314 and the second pushing block 3324 move synchronously to fix or release the stator in the fixture seat 311; the first guiding rod 3313 and the second guiding rod 3323 respectively play a guiding role for the first pushing block 3314 and the second pushing block 3324 to prevent position deviation and improve the accuracy.

[0047] The pressing piece 312 includes a horizontal downward pressing portion 3121 and a vertical rotating portion 3122. The rotating portion 3122 is rotatably installed on the support block 313, and the above-mentioned return spring 314 is arranged at the lower end of the rotating portion 3122; the downward pressing portion 3121 is detachably abutted against the upper side wall of the fixture seat 311 to press or release the stator; this makes the structure more compact, the design ingenious, and reduces the occupied area.

[0048] The jig base 311 includes a material placing part 3111 on the upper side and a connecting part 3112 on the lower side. The material placing part 3111 is detachably located on the upper surface of the connecting part 3112. The stator is placed on the material placing part 3111, and the pressing part 3121 is detachably abutted against the upper surface of the material placing part 3111. The above-mentioned supporting block 313 is arranged on the outer side wall of the connecting part 3112. The material placing part 3111 is detachably located on the upper surface of the connecting part 3112, which is convenient for disassembly and replacement. The connecting part 3112 can raise the position of the material placing part 3111, avoiding position interference in actual operation.

[0049] There are a plurality of the jig assemblies 31, rotary drive motors 32, first push blocks 3314, first guide rods 3313, second push blocks 3324 and second guide rods 3323. The plurality of first guide rods 3313 are arranged at intervals on the first connecting rod 3312, and the plurality of second guide rods 3323 are arranged at intervals on the second connecting rod 3322. The first connecting rod 3312 drives the plurality of first guide rods 3313 to move synchronously, and the plurality of first push blocks 3314 synchronously abut against the pressing pieces 312 on the left side of the plurality of jig bases 311. The second connecting rod 3322 drives the plurality of second guide rods 3323 to move synchronously, and the plurality of second push blocks 3324 synchronously abut against the pressing pieces 312 on the right side of the plurality of jig bases 311. The production cost is reduced, the consistency of the abutting effect is high, and the working efficiency is improved.

[0050] The wire pulling mechanism 40 includes a wire nozzle flipping assembly 41, a vertical driving assembly 42, a secondary air shear assembly 43, a horizontal driving assembly 44 and a longitudinal driving assembly 45. The longitudinal driving assembly 45 has a longitudinally movable longitudinal slide 453, the horizontal driving assembly 44 has a laterally movable lateral slide 442, and the vertical driving assembly 42 has a vertically movable vertical slide 423. The horizontal driving assembly 44 is installed on the longitudinal slide 453, and the vertical driving assembly 42 is installed on the lateral slide 442. The wire nozzle flipping assembly 41 is installed on the vertical slide 423, and the secondary air shear assembly 43 is installed on the lateral slide 442. The wire nozzle flipping assembly 41 has a rotatable rotating shaft 414. The center of the wire outlet end of the above-mentioned wire nozzle 416 is located on the extension line of the central axis of the rotating shaft 414, which ensures that the center position of the wire outlet end of the wire nozzle 416 remains unchanged before and after flipping, and ensures that the wire does not shift in position. The secondary air shear assembly 43 has a movable secondary air shear 434, and the secondary air shear 434 is located beside the wire nozzle 416.

[0051] The vertical drive assembly 42 drives the nozzle flipping assembly 41 to move vertically, the horizontal drive assembly 44 drives the vertical drive assembly 42 and the nozzle flipping assembly 41 to move horizontally, and the longitudinal drive assembly 45 drives the horizontal drive assembly 44, the vertical drive assembly 42 and the nozzle flipping assembly 41 to move longitudinally together; the longitudinal drive assembly 45 and the horizontal drive assembly 44 drive the auxiliary air shear assembly 43 to move longitudinally and horizontally; the nozzle flipping assembly 41 drives the nozzle 416 to flip; the nozzle 416 can move longitudinally, horizontally, vertically and flip, meeting the requirements of the moving position and angle of the nozzle 416, with high automation and improved work efficiency.

[0052] The nozzle flipping assembly 41 drives the nozzle 416 to be in a vertical state, and the nozzle 416 winds the wire on the fixture base 311, hanging the wire at the wire hanging position of the fixture base 311, that is, the nozzle 416 hangs the wire on the wire hanging post 3113 of the fixture base 311; the longitudinal drive assembly 45 drives the nozzle 416 to move longitudinally to hang the wire in the longitudinal direction of the wire hanging post 3113, and the horizontal drive assembly 44 drives the nozzle 416 to move horizontally to hang the wire in the horizontal direction of the wire hanging post 3113; the horizontal drive assembly 44 drives the nozzle 416 to move horizontally to the position of the wire hanging piece 63 of the stator, and then the nozzle 416 hangs the wire at the wire hanging position (wire hanging piece 63) of the stator and enters the outside of the winding pole block 61 of the stator 60, and the auxiliary air shear 434 descends to cut the wire between the auxiliary air shear 434 and the wire hanging place of the fixture base 311; the main air shear 53 flips 180 degrees to place the cut waste wire in the waste wire box at the rear.

[0053] After the wire hanging is completed, the wire nozzle 416 passes through the notch 62 positions of two adjacent winding pole blocks 61 and reaches the outside of the winding pole block 61; the wire nozzle flipping assembly 41 drives the wire nozzle 416 to be in a horizontal state. Since the center of the wire outlet end of the wire nozzle 416 is located on the extension line of the central axis of the rotating shaft 414, this ensures that the position of the wire remains unchanged before and after the flipping of the wire nozzle 416. The longitudinal driving assembly 45 and the vertical driving assembly 42 drive the wire nozzle 416 to move longitudinally and vertically; the longitudinal driving assembly 45 drives the wire nozzle 416 to move longitudinally to wind the winding pole block 61 of the stator 60 from the outside to the inside; the vertical driving assembly 42 drives the wire nozzle 416 to move vertically to correspond to the winding in the vertical direction of the winding pole block 61; the rotation driving motor 32 drives the stator 60 to rotate and swing alternately left and right to meet the winding requirements of the wire nozzle 416 in the horizontal direction of the winding pole block; in this way, the wire nozzle 416 and the swing of the stator 60 cooperate to wind the wire along the winding pole block; when the wire is wound from the outside of the winding pole block 61 of the stator 60 to the inside of the winding pole block 61, the sub-air shear 434 descends to cut the wire between the wire hanging position of the jig seat 311 (the position of the wire hanging column 3113) and the wire hanging position of the stator 60 (the position of the wire hanging piece 63); the sub-air shear 434 rises, and the wire nozzle 416 drives the wire to wind from the inside of the winding pole block 61 to the outside of the winding pole block, completing the winding of one winding pole block.

[0054] The wire nozzle flipping assembly 41 further includes a flipping driving cylinder 411, a rocker arm 412 and a wire nozzle seat 415. The flipping driving cylinder 411 is installed on the vertical sliding seat 423. The shaft end of the flipping driving cylinder 411 is hinged to one end of the rocker arm 412. The rocker arm 412 is tightly sleeved on the rotating shaft 414. The rotating shaft 414 is rotatably installed on the vertical sliding seat 423. The wire nozzle seat 415 is tightly sleeved on the rotating shaft 414. The above-mentioned wire nozzle 416 is tightly installed at the front end of the wire nozzle seat 415; a limiting rod 413 for limiting the rotation position of the rocker arm 412 is arranged beside the rocker arm 412. The rocker arm 412 is rotatably abutted against the limiting rod 413; the limiting rod 413 limits the maximum position of the rotation of the rocker arm 412.

[0055] The shaft end of the flipping driving cylinder 411 drives the rocker arm 412 to rotate. The rotation of the rocker arm 412 drives the rotating shaft 414 to rotate. The rotation of the rotating shaft 414 drives the wire nozzle seat 415 and the wire nozzle 416 to rotate; the wire nozzle 416 flips by a certain angle to meet the angle requirements of the wire nozzle 416 in actual operation.

[0056] The secondary air shear assembly 43 further includes a lifting drive motor 431, a lifting lead screw 432, and a mounting plate 433. The lifting drive motor 431 is mounted on the transverse slide 442. The shaft end of the lifting drive motor 431 is connected to the lifting lead screw 432, and the lifting lead screw 432 is rotationally engaged with the mounting plate 433. The above-mentioned secondary air shear 434 is mounted on the mounting plate 433. The lifting drive motor 431 drives the secondary air shear 434 to lift. The lifting drive motor 431 drives the secondary air shear 434 on the mounting plate 433 to lift relative to the wire nozzle 416. The use of the lifting drive motor 431 and the lifting lead screw 432 ensures the accuracy of the movement of the secondary air shear 434 and improves the stability of the movement.

[0057] The longitudinal drive assembly 45 further includes a longitudinal base plate (not shown in the figure) and a longitudinal drive device 451. The longitudinal drive device 451 is mounted on the longitudinal base plate. The above-mentioned longitudinal slide 453 is slidably located on the longitudinal base plate, and the output end of the longitudinal drive device 451 is connected to the longitudinal slide 453. The transverse drive assembly 44 further includes a transverse drive device, which is mounted on the longitudinal slide 453. The transverse slide 442 is slidably located on the longitudinal slide 453, and the output end of the transverse drive device is connected to the above-mentioned transverse slide 442. The vertical drive assembly 42 further includes a vertical drive device, which is mounted on the transverse slide 442. The vertical slide 423 is slidably located on the transverse slide 442, and the output end of the vertical drive device is connected to the above-mentioned vertical slide 423. A plurality of wire guide wheels 443 are spaced apart on the transverse slide 442. The plurality of wire guide wheels 443 correspond to the plurality of wire nozzles 416 one by one, and the wire guide wheels 443 are located above the wire nozzles 416. The wire passes through the wire guide wheels 443 to reach the wire nozzles 416, avoiding the wire from bending and preventing the wire from being wound together.

[0058] The longitudinal drive device 451 includes a longitudinal drive motor 452 and a longitudinal lead screw (not shown in the figure). The shaft end of the longitudinal drive motor 452 is connected to the longitudinal lead screw, and the longitudinal lead screw is rotationally engaged with the longitudinal slide 453. The transverse drive device includes a transverse drive motor 441 and a transverse lead screw (not shown in the figure). The shaft end of the transverse drive motor 441 is connected to the transverse lead screw, and the transverse lead screw is rotationally engaged with the transverse slide 442.

[0059] The vertical driving device includes a vertical driving motor 421, a driving wheel (not shown in the figure), a driven wheel (not shown in the figure), and a transmission belt 422. The vertical driving motor 421 is installed on the transverse sliding seat 442. The driving wheel is sleeved on the shaft end of the vertical driving motor 421. The driven wheel is located above the driving wheel. The transmission belt 422 is sleeved on the driving wheel and the driven wheel. A plurality of tooth grooves (not shown in the figure) are arranged at intervals on the transmission belt 422. A plurality of bumps (not shown in the figure) corresponding to the plurality of tooth grooves are arranged at intervals on the vertical sliding seat 423. The vertical sliding seat 423 is fixedly connected to the transmission belt 422. The vertical driving motor 421 drives the vertical sliding seat 423 to move up and down. The tooth grooves arranged on the transmission belt 422 cooperate with the bumps arranged on the vertical sliding seat 423, so that the connection between the vertical sliding seat 423 and the transmission belt 422 is tighter and dislocation is not likely to occur.

[0060] The plurality of wire nozzle flipping assemblies 41 are arranged at intervals on the vertical sliding seat 423. The plurality of secondary air shears 434 are installed at intervals on the mounting plate 433. The plurality of secondary air shears 434 correspond one by one to the plurality of wire nozzles 416 of the plurality of wire nozzle flipping assemblies 41. The above-mentioned longitudinal driving assembly 45, transverse driving assembly 44, and vertical driving assembly 42 drive the plurality of wire nozzle flipping assemblies 41 to move, reducing production costs and improving work efficiency.

[0061] The main wire cutting mechanism 50 further includes a longitudinal driving assembly 51 and a flipping driving assembly 52. The longitudinal driving assembly 51 includes a longitudinal driving cylinder 511 and a longitudinal sliding seat 512. The longitudinal driving cylinder 511 is installed on the workbench 11. The longitudinal sliding seat 512 is slidably located on the workbench 11. The shaft end of the longitudinal driving cylinder 511 is connected to the longitudinal sliding seat 512. The flipping driving assembly 52 includes a flipping driving cylinder 521 and a rotating rod 522. The flipping driving cylinder 521 is installed on the longitudinal sliding seat 512. The rotating rod 522 is rotatably installed on the longitudinal sliding seat 512. The shaft end of the flipping driving cylinder 521 is connected to the rotating rod 522. The above-mentioned main air shear 53 is fixedly installed on the rotating rod 522.

[0062] After all the winding pole blocks 61 of the stator 60 are wound, the main air shear 53 is flipped 180 degrees. The main air shear 53 is flipped from the position of the waste wire box at the rear side to the side of the jig base 311. The main air shear 53 cuts and clamps the wound wire to wind the next stator; the opening and closing drive assembly 33 releases the stator 60 from the jig base 311 for discharging; a waste wire box 54 for loading waste wire is arranged at the rear side of the main wire cutting mechanism 50. The flipping drive cylinder 521 drives the main air shear 53 to flip. The main air shear 53 is flipped 180 degrees to put the cut waste wire into the waste wire box 54 at the rear side; during the winding process of the winding pole block, the main air shear 53 remains in the state at the rear side, preventing the interference of the position of the wire nozzle during the winding process; the longitudinal drive assembly 51 drives the flipping drive assembly 52 to move longitudinally to meet the position movement requirements of the main air shear 53 during the wire cutting process.

[0063] The winding method of the inner winding type winding machine includes the following steps:

[0064] First, place the stator on the rotary locking mechanism, and the rotary locking mechanism fixes the stator on the jig base;

[0065] Second, the wire nozzle of the wire pulling mechanism drives the wire to pass through the main air shear from right to left, and the main air shear clamps the tail end of the wire;

[0066] Third, the wire nozzle flipping assembly drives the wire nozzle to be in a vertical state. The wire nozzle drives the wire to wind on the jig base and hangs the wire at the wire hanging position of the jig base; then after the wire nozzle hangs the wire at the wire hanging position of the stator, it enters the outside of the winding pole block of the stator. The auxiliary air shear descends to cut the wire between the auxiliary air shear and the wire hanging position of the jig base; the main air shear is flipped 180 degrees to put the cut waste wire into the waste wire box at the rear side;

[0067] Fourth, the wire nozzle flipping assembly drives the wire nozzle to be in a horizontal state. The longitudinal drive assembly and the vertical drive assembly drive the wire nozzle to move longitudinally and vertically. The rotary drive motor drives the stator to rotate and swing alternately left and right. The wire nozzle drives the wire to wind the winding pole block of the stator;

[0068] Fifth, when the wire winds from the outside of the winding pole block of the stator to the inside of the winding pole block, the auxiliary air shear descends to cut the wire between the wire hanging position of the jig base and the wire hanging position of the stator; the auxiliary air shear rises. The wire nozzle drives the wire to wind from the inside of the winding pole block to the outside of the winding pole block to complete the winding of one winding pole block;

[0069] Sixth, after winding a single winding pole block, the rotary drive motor drives the stator to rotate to wind the next winding pole block, and all the winding pole blocks are wound in sequence;

[0070] Seventh, after all the winding pole blocks of the stator are wound, the main air shear is flipped 180 degrees. The main air shear is flipped from the position of the waste wire box at the rear side to the side of the fixture seat. The main air shear cuts and clamps the wound wire to wind the next stator; the opening and closing drive assembly loosens the stator from the fixture seat for discharging.

[0071] The key design of the present invention lies in that through the mutual cooperation of the rotary locking mechanism, the wire pulling mechanism and the main wire cutting mechanism, the automation operations of fixing the stator, winding the winding pole blocks, and cutting the tail end of the wire during the winding process are realized. It has a high degree of automation, high winding accuracy and high working efficiency; the opening and closing drive assembly automatically drives the stator to be fixed or loosened on the fixture seat, and the rotary drive motor drives the fixture seat and the stator to rotate. The design is ingenious and occupies less area; the longitudinal drive assembly, the transverse drive assembly and the vertical drive assembly are used to drive the wire nozzle to move longitudinally, transversely and vertically, and the wire nozzle flipping assembly drives the wire nozzle to flip, meeting the position requirements of the wire nozzle and improving the working efficiency.

[0072] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An internal winding machine, characterized in that; it includes a frame, a wire pulling mechanism for driving the wire to move to wind the winding pole block of the stator, a rotary locking mechanism for fixing the stator and driving the stator to rotate, and a main wire cutting mechanism for cutting and clamping the wire; a workbench for installing the above-mentioned mechanisms is arranged on the frame, the wire pulling mechanism has a movable wire nozzle and a movable auxiliary air shear, and the auxiliary air shear is located beside the wire nozzle; the rotary locking mechanism has a rotatable jig base for placing the stator; the main wire cutting mechanism has a flip-up main air shear; the wire nozzle is movably located beside the rotatable jig base, the main air shear is located beside the jig base, the auxiliary air shear is movably located above the jig base, and the wire nozzle, the main air shear and the auxiliary air shear all correspond to the jig base; the rotary locking mechanism further includes a jig component for placing and fixing the stator, an opening and closing driving component for driving the jig component to fix or release the stator, and a rotary driving motor for driving the stator to rotate; the jig component includes the above-mentioned jig base and a pressing piece for pressing or releasing the stator on the jig base, and the pressing piece is elastically and separably abutted on the upper side wall of the jig base; the opening and closing driving component is separably abutted on the pressing piece; the rotary driving motor is vertically installed on the workbench, and the shaft end of the rotary driving motor is connected to the jig base; the jig component further includes a support block and a return spring, the support block is firmly installed on the side wall of the jig base, the above-mentioned pressing piece is rotatably installed on the support block, and the return spring is arranged between the lower end of the pressing piece and the side wall of the jig base; there are two pressing pieces, support blocks and return springs, and the two pressing pieces, support blocks and return springs are symmetrically distributed on the side walls of the jig base respectively.

2. The internal winding machine according to claim 1, characterized in that: the wire pulling mechanism includes a wire nozzle flipping component, a vertical driving component, an auxiliary air shear component, a horizontal driving component and a longitudinal driving component, the longitudinal driving component has a longitudinally movable longitudinal slide, the horizontal driving component has a laterally movable lateral slide, and the vertical driving component has a vertically movable vertical slide; the horizontal driving component is installed on the longitudinal slide, and the vertical driving component is installed on the lateral slide; the wire nozzle flipping component is installed on the vertical slide, and the auxiliary air shear component is installed on the lateral slide; the wire nozzle flipping component has a rotatable rotating shaft, and the center of the wire outlet end of the above-mentioned wire nozzle is located on the extension line of the central axis of the rotating shaft.

3. The internal winding machine according to claim 2, characterized in that: the wire nozzle flipping component further includes a flipping driving cylinder, a rocker arm and a wire nozzle seat, the flipping driving cylinder is installed on the vertical slide, the shaft end of the flipping driving cylinder is connected to the rocker arm, the rocker arm is firmly sleeved on the rotating shaft, the rotating shaft is rotatably installed on the vertical slide, the wire nozzle seat is firmly sleeved on the rotating shaft, and the above-mentioned wire nozzle is firmly installed at the front end of the wire nozzle seat.

4. The internal winding machine according to claim 3, characterized in that: The auxiliary air shear assembly further includes a lifting drive motor, a lifting lead screw, and a mounting plate. The lifting drive motor is mounted on the transverse sliding seat. The shaft end of the lifting drive motor is connected to the lifting lead screw, and the lifting lead screw is rotationally engaged with the mounting plate. The above-mentioned auxiliary air shear is mounted on the mounting plate. The lifting drive motor drives the auxiliary air shear to lift and lower.

5. The internal winding type winding machine according to claim 1, characterized in that: The opening and closing drive assembly includes a first opening and closing drive device for driving a pressing piece on the left side wall of the fixture seat to press the stator and a second opening and closing drive device for driving a pressing piece on the right side wall of the fixture seat to press the stator. The first opening and closing drive device has a first push block that can move horizontally, and the first push block is detachably abutted against the pressing piece on the left side of the fixture seat. The second opening and closing drive device has a second push block that can move horizontally, and the second push block is detachably abutted against the pressing piece on the right side of the fixture seat.

6. The internal winding type winding machine according to claim 5, characterized in that: The first opening and closing drive device further includes a first drive cylinder, a first connecting rod, and a first guide rod. The shaft end of the first drive cylinder is connected to the first connecting rod, the first guide rod is longitudinally and firmly mounted on the first connecting rod, and the above-mentioned first push block is firmly mounted on the first guide rod. The second opening and closing drive device further includes a second drive cylinder, a second connecting rod, and a second guide rod. The shaft end of the second drive cylinder is connected to the second connecting rod, the second guide rod is longitudinally and firmly mounted on the second connecting rod, and the above-mentioned second push block is firmly mounted on the second guide rod. The first connecting rod and the second connecting rod are arranged horizontally in parallel. The second connecting rod can move horizontally through the first guide rod, and the first connecting rod can move horizontally through the second guide rod.

7. The internal winding type winding machine according to claim 1, characterized in that: The main wire cutting mechanism further includes a longitudinal drive assembly and a flipping drive assembly. The longitudinal drive assembly includes a longitudinal drive cylinder and a longitudinal sliding seat. The longitudinal drive cylinder is mounted on the workbench, the longitudinal sliding seat is slidably located on the workbench, and the shaft end of the longitudinal drive cylinder is connected to the longitudinal sliding seat. The flipping drive assembly includes a flipping drive cylinder and a rotating rod. The flipping drive cylinder is mounted on the longitudinal sliding seat, the rotating rod is rotatably mounted on the longitudinal sliding seat, and the shaft end of the flipping drive cylinder is connected to the rotating rod. The above-mentioned main air shear is firmly mounted on the rotating rod.

8. A winding method for an internal winding type winding machine according to any one of claims 1-7, characterized in that: It includes the following steps: First, place the stator on the rotary locking mechanism, and the rotary locking mechanism fixes the stator on the fixture seat. Second, the wire nozzle of the wire pulling mechanism brings the wire from right to left through the main air shear, and the main air shear clamps the tail end of the wire. Third, the wire nozzle flipping assembly drives the wire nozzle to be in a vertical state. The wire nozzle winds the wire on the fixture seat and hangs the wire at the wire hanging position of the fixture seat. Then, after the wire nozzle hangs the wire at the wire hanging position of the stator and enters the outside of the winding pole block of the stator, the auxiliary air shear descends to cut the wire between the auxiliary air shear and the wire hanging position of the fixture seat. The main air shear flips 180 degrees to put the cut waste wire into the waste wire box at the rear. Fourth, the nozzle flipping assembly drives the nozzle to be in a horizontal state, the longitudinal driving assembly and the vertical driving assembly drive the nozzle to move longitudinally and vertically, the rotation driving motor drives the stator to rotate and swing alternately left and right, and the nozzle winds the wire around the winding pole block of the stator with the wire; Fifth, when the wire winds from the outside of the winding pole block of the stator to the inside of the winding pole block, the auxiliary air shear descends to cut the wire between the wire hanging position of the fixture base and the wire hanging position of the stator; The auxiliary air shear rises, and the nozzle winds the wire from the inside of the winding pole block to the outside of the winding pole block with the wire, completing the winding of one winding pole block; Sixth, after winding a single winding pole block, the rotation driving motor drives the stator to rotate to wind the next winding pole block, and all the winding pole blocks are wound in sequence; Seventh, after all the winding pole blocks of the stator are wound, the main air shear flips 180 degrees, and the main air shear flips from the position of the waste wire box at the rear side to the side of the fixture base. The main air shear cuts and clamps the wound wire to wind the next stator; the opening and closing driving assembly loosens the stator from the fixture base for discharging.

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