Wire trimming device and stator processing equipment

Abstract

The invention relates to the technical field of motor manufacturing, and discloses a wire cutting device and stator processing equipment. The thread trimming device comprises a first fixing seat, a first fixing structure, a thread clamping structure and a shearing structure, the first fixing seat comprises a fixing plate and a sliding table, and the sliding table is slidably arranged on the fixing plate; the first fixing structure is slidably arranged on the sliding table, the stator core is clamped into the first fixing structure to be fixed, and the wire clamping structure is arranged on the first fixing structure and used for clamping a wire end; the shearing structure is arranged on the sliding table, located over the thread clamping structure and used for shearing thread ends. The length of short thread ends sheared by the shearing structure is uniform, the shearing precision is improved, and the shearing precision is stable.

Description

Technical Field

[0001] The invention relates to the technical field of motor manufacturing, and in particular to a wire cutting device and stator processing equipment. Background Art

[0002] The stator is the stationary part of the motor or generator. The stator consists of three parts: the stator core, the stator winding and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field and then generate (output) current.

[0003] During the production process of the motor stator, winding operations need to be performed on the stator core. Generally, stator winding equipment is usually used. After winding, there are usually long wire ends left on the stator core. In the traditional stator processing process, these long wire ends need to be manually cut off to facilitate subsequent processing such as spot welding of the remaining short wire ends. However, manual cutting of wire ends is inefficient, unstable in precision, and cannot be automated.

[0004] CN210231358U discloses a wire trimming device to realize automatic wire trimming. Although the wire trimming device of this structure can realize automatic wire trimming, since the wire is not straightened, the length of the short wire ends is not uniform during cutting, and the precision is unstable. Summary of the invention

[0005] The main purpose of the present invention is to provide a thread trimming device, aiming to solve the technical problems of the existing thread trimming device having inconsistent lengths of short thread ends and unstable precision.

[0006] To achieve the above object, the present invention provides a wire cutting device, which is applied to a stator processing device, wherein the stator processing device comprises a machine platform and a lifting and rotating structure, wherein the lifting and rotating structure and the shearing structure are both arranged on the machine platform, and the lifting and rotating structure is used to drive the stator core to move upward or downward, and is characterized in that the wire cutting device comprises:

[0007] A first fixed seat, the first fixed seat comprising a fixed plate and a slide, the slide being slidably disposed on the fixed plate;

[0008] a first fixing structure, wherein the first fixing structure is slidably disposed on the slide platform, the stator core is inserted into the first fixing structure, and the first fixing structure is used to fix the stator core;

[0009] A wire clamping structure, which is arranged on the first fixing structure and is used to clamp the wire end;

[0010] A shearing structure is arranged on the slide and is located directly above the wire clamping structure, and is used for shearing the wire end.

[0011] Optionally, in one embodiment, the wire cutting device further includes a second fixing structure, which is telescopically disposed on the machine platform and pressed against the stator core and located directly above the stator core.

[0012] Optionally, in one embodiment, the second fixed structure includes a fixed rod, a lifting drive and a pressing head, the fixed rod is arranged on the machine platform, and the fixed plate is arranged on the fixed rod, the lifting drive is arranged on the fixed rod, and the pressing head is arranged on the output end of the lifting drive, and the lifting drive is used to drive the pressing head to perform an ascending motion or a descending motion.

[0013] Optionally, in one embodiment, the thread trimming device further includes a first sliding assembly, the first sliding assembly includes a connecting plate, a reset elastic member, a first slider and a slide rail, the connecting plate and the slide rail are both arranged on the slide platform, and the connecting plate is located at one end of the slide rail, one end of the reset elastic member is sleeved on one end of the connecting plate, the other end of the reset elastic member is arranged on one end of the first fixed structure, the first slider is arranged on the first fixed structure, and the first slider is slidably arranged on the slide rail and / or,

[0014] The thread trimming device includes a second sliding assembly, which includes a transverse driving member and a connecting block. The connecting block is arranged on a side of the slide away from the first fixed structure, and the connecting block is sleeved on the output end of the transverse driving member. The transverse driving member is arranged on the fixed plate.

[0015] Optionally, in one embodiment, a fixing opening is provided on the front end face of the first fixing structure, and the stator core is inserted into the fixing opening to be fixed; a clamping opening is provided at one end of the wire clamping structure, and a distance between the clamping opening and the side wall of the stator core is greater than a distance between the fixing opening and the side wall of the stator core.

[0016] Optionally, in one embodiment, the first fixing structure is a plate-like structure, the fixing opening is arranged on the front end surface of the plate-like structure, and the fixing opening is a first arc-shaped opening having a curvature that matches the curvature of the side wall of the stator core, and the side wall of the stator core is inserted into the first arc-shaped opening to form a fixation.

[0017] Optionally, in one embodiment, the first fixing structure is a plate-like structure, the fixing opening is arranged on the front end surface of the plate-like structure, and the fixing opening is a second arc-shaped opening having a curvature that matches the curvature of the side wall of the stator core, the second arc-shaped opening is provided with a plurality of protrusions, the curvature surrounded by the plurality of protrusions matches the curvature of the side wall of the stator core, and the plurality of protrusions are clamped on the side wall of the stator core.

[0018] Optionally, in one embodiment, the protrusion is detachably disposed on the second arc-shaped opening.

[0019] Optionally, in one embodiment, the first arc-shaped opening is in a wavy structure, and the side wall of the stator core is stuck in the wavy structure.

[0020] Optionally, in one embodiment, the stator processing equipment further includes a material channel and a waste receiving box, the waste receiving box is arranged on the machine table, the material channel is arranged on the slide, and the outlet of the material channel is connected to the inlet of the waste receiving box.

[0021] Optionally, in one embodiment, the lifting and rotating structure includes a lifting drive member, a connecting shaft, a second fixed seat, a rotating drive member, and a synchronous member, one end of the connecting shaft is arranged on the output end of the lifting drive member, the second fixed seat is arranged on the other end of the connecting shaft, the synchronous member is sleeved on the connecting shaft, and the synchronous member is arranged on the output end of the rotating drive member.

[0022] The present invention also provides a stator processing device, which comprises the wire cutting device.

[0023] In the technical solution provided by the present invention, the slide is slidably arranged on the fixed plate so that the slide can move toward the direction of the stator core, the first fixed structure is slidably arranged on the slide, the wire clamping structure is arranged on the first fixed plate, and the shearing structure is arranged on the slide, so that the slide drives the first fixed structure, the wire clamping structure and the shearing structure to slide while sliding, so that the stator core can be stuck into the first fixed structure to be fixed, the wire clamping structure clamps the wire end on the stator core, and the shearing structure shears the wire end, so that the length of the short wire end after shearing by the shearing structure is uniform, the shearing accuracy is improved, and the shearing accuracy is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0025] Figure 1 It is a structural schematic diagram of a stator processing device according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0027] Figure 3It is a structural schematic diagram of a thread trimming device and a lifting and rotating structure according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0029] Figure 5 A schematic plan view of a thread trimming device according to an embodiment of the present invention;

[0030] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0031] Figure 7 It is a structural schematic diagram of a thread trimming device according to an embodiment of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the first fixing structure of the first embodiment of the thread trimming device of the present invention;

[0033] Fig. 9 A schematic diagram of a structure in which a first fixing structure of a second embodiment of a thread trimming device of the present invention is provided with a protrusion;

[0034] Fig.10 This is a schematic structural diagram of a second embodiment of a thread trimmer device according to the present invention, in which a first fixing structure is provided with a detachable protrusion;

[0035] Fig.11 It is a structural schematic diagram of a first fixing structure of a third embodiment of a thread trimming device of the present invention;

[0036] Among them, 100, the wire cutting device; 10, the first fixed seat; 101, the fixed plate; 102, the slide; 20, the first fixed structure; 201, the fixed mouth; 202, the first arc-shaped mouth; 203, the second arc-shaped mouth; 204, the protrusion; 205, the wave-shaped structure; 30, the clamping structure; 301, the clamping mouth; 40, the shearing structure; 50, the second fixed structure; 501, the fixed rod; 502, the lifting drive member; 503, the pressure head; 60, the first sliding component; 601 , connecting plate; 602, reset elastic member; 603, first slider; 604, slide rail; 70, second sliding assembly; 701, lateral drive member; 702, connecting block; 800, stator processing equipment; 80, lifting and rotating structure; 801, lifting drive member; 802, connecting shaft; 803, second fixed seat; 804, rotating drive member; 805, synchronous member; 806, synchronous belt; 807, synchronous wheel; 808, machine; 900, stator core; 901, thread end. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0038] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0039] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Please refer to Figures 1 to 4 , an embodiment of the present invention discloses a stator processing device 800.

[0041] In one embodiment, if Figure 1 and Figure 2As shown, the stator processing equipment 800 includes a machine cover (not shown), a machine table 808, a lifting and rotating structure 80, a wire cutting device 100, a material channel (not shown) and a waste box (not shown). The machine cover is arranged on the machine table 808, and the lifting and rotating structure 80 is arranged on the machine table 808, and is used to lift the stator core 900 to the shearing position of the wire cutting device 100, so that the wire cutting device 100 can cut the wire end 901 on the stator core 900. The wire cutting device 100 is arranged on the machine table 808, and the wire cutting device 100 and the lifting and rotating structure 80 are arranged in correspondence, so that the lifting and rotating structure 80 can lift the stator core 900 to the shearing position of the wire cutting device 100. The waste receiving box is arranged on the machine table 808, the material channel is arranged on the slide 102 of the wire cutting device 100, and the discharge port of the material channel is connected with the feed port of the waste receiving box. The feed port of the material channel corresponds to the shearing opening of the wire cutting device 100, so that the thread ends 901 cut off by the wire cutting device 100 can fall smoothly into the feed channel, and then enter the waste receiving box through the material channel, so as to facilitate the waste recycling of the thread ends 901.

[0042] Specifically, the material channel has a funnel-shaped structure, which can better prevent the cut thread ends 901 from spilling.

[0043] In one embodiment, if Figure 3 and Figure 4 As shown, the lifting and rotating structure 80 includes a lifting drive member 801, a connecting shaft 802, a second fixed seat 803, a rotating drive member 804 and a synchronous member 805, wherein the synchronous member 805 includes a synchronous belt 806 and a synchronous wheel 807, one end of the connecting shaft 802 is arranged on the output end of the lifting and driving member 801, the second fixed seat 803 is arranged on the other end of the connecting shaft 802, the synchronous wheel 807 is sleeved on the connecting shaft 802, one end of the synchronous belt 806 is sleeved on the output end of the rotating drive member 804, and the other end of the synchronous belt 806 is sleeved on the outer periphery of the synchronous wheel 807, so that the lifting and rotating structure 80 can not only lift the stator core 900, but also drive the stator core 900 to rotate, so as to adjust the angle of the stator core 900, so that the thread head 901 can be more accurately aligned with the cutting opening of the thread cutting device, thereby facilitating the thread cutting device to cut the thread head 901.

[0044] Figures 3 to 8 A first embodiment of a thread trimmer device 100 according to the present invention is shown.

[0045] In one embodiment, as shown in the figure, the wire cutting device 100 is used to cut the wire ends 901 of the stator core 900, and the wire cutting device 100 includes a first fixing seat 10, a first fixing structure 20, a wire clamping structure 3030 and a cutting structure 40.

[0046] The first fixing seat 10 includes a fixing plate 101 and a slide 102. The slide 102 can be slidably arranged on the fixing plate 101, and the first fixing structure 20 can be slidably arranged on the slide 102, so that the slide 102 slides toward the direction of the stator core 900 and drives the first fixing structure 20 to slide toward the direction of the stator core 900, so that the first fixing structure 20 can be clamped on the side wall of the stator core 900, and the clamping structure 3030 for clamping the wire head 901 is arranged on the first fixing structure 20, so that the first fixing structure 20 moves toward the direction of the stator core 900 and drives the clamping structure 3030 to move toward the direction of the stator core 900, so that the first fixing structure 20 can be clamped on the side wall of the stator core 900. After being clamped on the side wall of the stator core 900, the wire clamping structure 3030 can clamp the wire end 901. The shearing structure 40 is arranged on the slide 102 and is located directly above the wire clamping structure 3030, and is used to shear the wire end 901. Since the first fixed structure 20 is clamped on the side wall of the stator core 900, the wire clamping structure 3030 can straighten the entire wire end 901 when clamping the wire end 901, thereby avoiding the displacement of the stator core 900 when the wire clamping structure 3030 clamps the wire end 901 and straightens the wire end 901, resulting in the wire end 901 not being straightened, that is, being in a bent state, thereby resulting in the length of the short wire end 901 after being sheared by the shearing structure 40 being non-uniform, and further resulting in unstable shearing accuracy.

[0047] Specifically, the shearing structure 40 may be an air shear.

[0048] In one embodiment, the wire cutting device 100 further includes a second fixing structure 50, which is retractably arranged on the machine platform 808, and is pressed against the stator core 900 and located directly above the stator core 900, for positioning and fixing the stator core 900. In the working state, the lifting and rotating structure 80 lifts the stator core 900 to the shearing opening of the wire cutting device 100, and then the second fixing structure 50 descends and presses against the side surface of the stator core 900 away from the lifting and rotating structure 80, so that the second fixing structure 50 and the lifting and rotating structure 80 fix the stator core 900 in the vertical direction, further improving the stability of the stator core 900 fixation, that is, when the clamping structure 30 pulls the straight wire head 901 with force, the wire head 901 cannot pull the stator core 900, thereby further improving the uniformity of the length of the short wire head 901 after the wire cutting device 100 cuts, and improving the precision of the precision cutting.

[0049] Furthermore, the second fixed structure 50 includes a fixed rod 501, a lifting drive member 502 and a pressure head 503. The lifting drive member 502 can be a cylinder. One end of the fixed rod 501 is fixed to the machine platform 808, and the fixed plate 101 is fixed to the fixed rod 501. The lifting drive member 502 is arranged at the other end of the fixed rod 501. The pressure head 503 is arranged at the output end of the lifting drive member 502, so that the lifting drive member 502 can drive the pressure head 503 to move upward or downward, so that when in the working state, the pressure head 503 can be lowered to The stator core 900 is mounted on the stator core 900 and pressed tightly. The pressure head 503 is a pure flat downward pressure positioning, which not only prevents the stator core 900 from floating up or the stator core 900 from tilting during the jacking period, but also forms a vertical fixation for the stator core 900 with the jacking rotating structure 80, further improving the fixation of the stator core 900, and preventing the clamping structure 3030 from pulling the stator core 900 out of position when the straight wire head 901 is pulled straight, thereby further improving the uniformity of the length of the short wire head 901 cut by the wire cutting device 100 and improving the precision of the precision cutting.

[0050] In one embodiment, a fixing opening 201 is provided on the front end surface of the first fixing structure 20. When in working state, the slide 102 slides toward the direction of the stator core 900 and drives the first fixing structure 20 to slide toward the direction of the stator core 900 until the side wall of the stator core 900 is stuck in the fixing opening 201 to be fixed. The fixing opening 201 is in surface contact with the side wall of the stator core 900, which increases the force bearing area and thus improves the stability of fixing the stator core 900, and avoids the clamping structure 3030 from pulling the stator core 900 at the same time during the process of straightening the wire head 901, so that the wire head 901 It is in a bent state, resulting in that the length of the short wire end 901 after shearing by the shearing structure 40 is not uniform and the precision is low. The wire clamping structure 3030 includes a clamping claw driving member arranged on the first fixed structure 20, and two clamping claws arranged on the output end of the clamping claw driving member. The two clamps form a clamping opening 301 for clamping the wire end 901. The distance between the clamping opening 301 and the side wall of the stator core 900 is greater than the distance between the fixed opening 201 and the side wall of the stator core 900, so that when the side wall of the stator core 900 is stuck in the fixed opening 201, the clamping opening 301 is close to the wire end 901, which is convenient for clamping the wire end 901.

[0051] Furthermore, the first fixing structure 20 is a plate-like structure, and the fixing opening 201 is arranged on the front end surface of the plate-like structure, and the fixing opening 201 is a first arc-shaped opening 202 that is adapted to the curvature of the side wall of the stator core 900. The side wall of the stator core 900 is inserted into the first arc-shaped opening 202 to be fixed. The first fixing structure 20 is a plate-like structure, and the first arc-shaped opening 202 is provided on the front end surface of the plate-like structure, and the stator core 900 can be laterally fixed, so that the wire cutting device 100 has a compact structural design, a simple structure, a small size, and high working efficiency.

[0052] Specifically, the material of the first fixing structure 20 is an elastic material, so that the first fixing structure 20 can fix the stator core 900 without scratching the stator core 900 .

[0053] In one embodiment, the thread trimming device 100 further includes a first sliding assembly 60, which includes a connecting plate 601, a reset elastic member 602, a first slider 603 and a slide rail 604. The connecting plate 601 and the slide rail 604 are both arranged on the slide table 102, and the connecting plate 601 is located at one end of the slide rail 604. A connecting rod is provided on the connecting plate 601 on one side facing the slide rail 604. One end of the reset elastic member 602 is sleeved on the connecting rod, and the other end of the reset elastic member 602 is sleeved on the connecting rod. The end is fixed on one end of the first fixed structure 20, the first slider 603 is arranged on the side of the first fixed structure 20 away from the clamping structure 30, the first slider 603 is slidably connected to the slide rail 604, and the first slider 603 is slidably arranged on the slide rail 604. When the fixing port 201 of the first fixed structure 20 is inserted into the stator core 900, the reset elastic member 602 retracts to ensure that the shearing structure 40 is in the same position relative to the stator core 900, so that the shearing structure 40 can smoothly shear the wire head 901.

[0054] Specifically, the resetting elastic member 602 may be a spring. A spring is a mechanical part that uses elasticity to work. A part made of elastic material deforms under the action of an external force and returns to its original shape after the external force is removed.

[0055] Furthermore, the wire cutting device 100 also includes a second sliding assembly 70, which includes a transverse driving member 701 and a connecting block 702. The connecting block 702 is arranged on a side of the slide 102 away from the first fixed structure 20, and the connecting block 702 is sleeved on the output end of the transverse driving member 701. The transverse driving member 701 is arranged on the fixed plate 101. The transverse driving member 701 can be pneumatically driven. The transverse driving member 701 drives the slide 102 to move toward the stator core 900, or away from the stator core 900. When the slide 102 slides, it drives the first fixed structure 20, the clamping structure 30 and the shearing structure 40 to move. When the fixed port 201 of the first fixed structure 20 is completed, When the side wall of the stator core 900 is fully clamped, the slide 102 has a thrust toward the stator core 900 due to inertia, and the first fixed structure 20 is pressed tightly against the stator core 900. Due to the mutual force action, the stator core 900 will give the first fixed structure 20 a reverse thrust, which pushes the spring return member to return, and at the same time drives the first fixed structure 20, the wire clamping structure 30 and the shearing structure 40 to retract to the optimal position, which not only ensures that the first fixed structure 20 can fix the stator core 900, but also ensures that the positions of the wire clamping structure 30 and the shearing structure 40 relative to the stator core 900 are consistent, thereby realizing the functions of the wire cutting device 100 of clamping the wire head 901, fixing the stator core 900 and cutting the wire head 901.

[0056] In one embodiment, the stator processing equipment 800 also includes a material channel and a waste receiving box. The waste receiving box is arranged on the machine table 808, the material channel is arranged on the slide 102, and the outlet of the material channel is connected to the feed port of the waste receiving box. The feed port of the material channel corresponds to the shearing port of the shearing structure 40. The wire clamping structure 30 clamps the wire end 901, and the shearing structure 40 cuts off the wire end 901. The wire clamping structure 30 maintains the clamping state, and the transverse driving member 701 drives the slide 102 to move away from the stator core 900, thereby driving the wire clamping structure 30 to clamp the cut wire end 901 and move away from the stator core 900. After that, the wire clamping structure 30 releases the cut wire end 901, and the cut wire end 901 can fall smoothly into the material channel, and then pass through the material channel into the waste receiving box, so as to facilitate the waste recycling of the wire end 901.

[0057] In one embodiment, the lifting and rotating structure 80 includes a lifting drive member 801, a connecting shaft 802, a second fixed seat 803, a rotating drive member 804, and a synchronous member 805, wherein the synchronous member 805 includes a synchronous belt 806 and a synchronous wheel 807, one end of the connecting shaft 802 is arranged on the output end of the lifting and driving member 801, the second fixed seat 803 is arranged on the other end of the connecting shaft 802, the synchronous wheel 807 is sleeved on the connecting shaft 802, one end of the synchronous belt 806 is sleeved on the output end of the rotating drive member 804, and the other end of the synchronous belt 806 is sleeved on the outer periphery of the synchronous wheel 807, so that the lifting and rotating structure 80 can not only lift the stator core 900, but also drive the stator core 900 to rotate, so as to facilitate the adjustment of the angle of the stator core 900, so that the thread end 901 can be more accurately aligned with the scissors mouth of the thread cutting structure, thereby facilitating the thread cutting device to cut the thread end 901.

[0058] Fig. 9 and Fig.10 FIG. 2 shows a second embodiment of the wire trimming device 100 of the present invention. The structural difference between the second embodiment and the first embodiment is that the fixing opening 201 is a second arc-shaped opening 203 having an arc that matches the arc of the side wall of the stator core 900, but the distance between the second arc-shaped opening 203 and the side wall of the stator core 900 is greater than the distance between the first arc-shaped opening 202 and the side wall of the stator core 900, and the second arc-shaped opening 203 is provided with a plurality of protrusions 204, and the arc formed by the plurality of protrusions 204 matches the arc of the side wall of the stator core 900. The second arc-shaped opening 203 is adapted to the curvature of the stator core 900, and the material of the protrusion 204 is an elastic material, so that when the multiple protrusions 204 are clamped on the side wall of the stator core 900, the contact area between the protrusion 204 and the side wall of the stator core 900 is increased, and the force-bearing area is increased. The curvature of the second arc-shaped opening 203 is adapted to the curvature of the stator core 900 to ensure that after the multiple protrusions 204 are arranged on the second arc-shaped opening 203, it still remains adapted to the curvature of the stator core 900, so that the multiple protrusions 204 can be clamped on the side wall of the stator core 900. The protrusion 204 increases the friction with the stator core 900, further improves the stability of fixing the stator core 900, and further improves the uniformity of the length of the short wire head 901 cut by the wire cutting device 100, and improves the precision of fine cutting.

[0059] Furthermore, the protrusion 204 can be set to be detachable. When the stator core 900 is of a large size, the protrusion 204 on the second arc-shaped opening 203 can be removed. When the stator core 900 is of a small size, the protrusion 204 can be installed on the second arc-shaped opening 203, so that the second arc-shaped opening 203 can fix stator cores 900 of different sizes, further improving the versatility of the second arc-shaped opening 203.

[0060] Fig.11A third embodiment of the wire cutting device 100 of the present invention is shown. The structural difference between this embodiment and the first embodiment is that the first arc-shaped opening 202 is a wavy structure 205, and the wavy structure 205 has a plurality of recessed portions and a plurality of protrusions 204 portions. The arc surrounded by the plurality of protrusions 204 portions is adapted to the arc of the stator core 900, so that the side wall of the stator core 900 is stuck into the wavy structure 205, and the recessed portions and the protrusions 204 portions are alternately arranged, so that the first arc-shaped opening 202 has a certain elasticity and can be stuck in the stator core 900 of different sizes within a certain range, thereby improving the versatility of the first arc-shaped opening 202.

[0061] In the working state, the lifting and rotating structure 80 drives the stator core 900 to rise to the position of the shearing structure 40, and the second sliding assembly 70 drives the slide 102 to slide in the direction of the stator core 900, while driving the first fixed structure 20, the clamping structure 30 and the shearing structure 40 to slide in the direction of the stator core 900, so that the stator core 900 can clamp the fixing port 201 of the first fixed structure 20, and the contact between the fixing port 201 and the stator core 900 is surface contact, which increases the force bearing area and improves In order to improve the stability of the fixation of the stator core 900, the second fixing structure 50 descends to the stator core 900 and presses the stator core 900, so that the second fixing structure 50 and the lifting and rotating structure 80 fix the stator core 900 in the vertical direction, thereby further improving the stability of the stator core 900. The wire clamping structure 30 clamps the wire end 901 and keeps the wire end 901 in a straightened state, so that the length of the short wire end 901 after shearing by the shearing structure 40 remains uniform, thereby improving the shearing accuracy.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire cutting device, used for cutting the wire ends of a stator core, applied to a stator processing device, wherein the stator processing device comprises a machine platform and a lifting and rotating structure, wherein the lifting and rotating structure and the shearing structure are both arranged on the machine platform, and the lifting and rotating structure is used for driving the stator core to move upward or downward, and is characterized in that: The thread trimming device includes: A first fixed seat, the first fixed seat comprising a fixed plate and a slide, the slide being slidably disposed on the fixed plate; A first fixing structure, wherein the first fixing structure is slidably disposed on the slide platform, and the stator core is clamped into the first fixing structure to be fixed; A wire clamping structure, which is arranged on the first fixing structure and is used to clamp the wire end; A shearing structure is arranged on the slide and is located directly above the wire clamping structure, and is used for shearing the wire end.

2. The thread trimming device according to claim 1, characterized in that: The wire trimming device further comprises a second fixing structure, which is telescopically arranged on the machine platform and pressed against the stator core and located directly above the stator core.

3. The thread trimming device according to claim 2, characterized in that: The second fixed structure includes a fixed rod, a lifting drive and a pressing head. The fixed rod is arranged on the machine platform, and the fixed plate is arranged on the fixed rod. The lifting drive is arranged on the fixed rod. The pressing head is arranged on the output end of the lifting drive. The lifting drive is used to drive the pressing head to move upward or downward.

4. The thread trimming device according to claim 1, characterized in that: The thread trimming device further includes a first sliding assembly, which includes a connecting plate, a reset elastic member, a first slider and a slide rail, wherein the connecting plate and the slide rail are both arranged on the slide platform, and the connecting plate is located at one end of the slide rail, one end of the reset elastic member is sleeved on one end of the connecting plate, and the other end of the reset elastic member is arranged on one end of the first fixed structure, the first slider is arranged on the first fixed structure, and the first slider is slidably arranged on the slide rail; and / or, The thread trimming device includes a second sliding assembly, which includes a transverse driving member and a connecting block. The connecting block is arranged on a side of the slide away from the first fixed structure, and the connecting block is sleeved on the output end of the transverse driving member. The transverse driving member is arranged on the fixed plate.

5. The thread trimming device according to claim 1, characterized in that: A fixing opening is provided on the front end face of the first fixing structure, and the stator core is inserted into the fixing opening to be fixed. A clamping opening is provided at one end of the wire clamping structure, and the distance between the clamping opening and the side wall of the stator core is greater than the distance between the fixing opening and the side wall of the stator core.

6. The thread trimming device according to claim 5, characterized in that: The first fixing structure is a plate-like structure, the fixing opening is arranged on the front end surface of the plate-like structure, and the fixing opening is a first arc-shaped opening adapted to the curvature of the side wall of the stator core, and the side wall of the stator core is inserted into the first arc-shaped opening to be fixed.

7. The thread trimming device according to claim 5, characterized in that: The first fixing structure is a plate-like structure, the fixing opening is arranged on the front end surface of the plate-like structure, and the fixing opening is a second arc-shaped opening having a curvature that matches the curvature of the side wall of the stator core, the second arc-shaped opening is provided with a plurality of protrusions, the curvature surrounded by the plurality of protrusions matches the curvature of the side wall of the stator core, and the plurality of protrusions are clamped on the side wall of the stator core.

8. The thread trimming device according to claim 7, characterized in that: The protrusion is detachably arranged on the second arc-shaped opening; and / or, the stator processing equipment also includes a material channel and a waste material receiving box, the waste material receiving box is arranged on the machine table, the material channel is arranged on the slide, and the outlet of the material channel is connected to the feed inlet of the waste material receiving box.

9. The thread trimming device according to claim 6, characterized in that: The first arc-shaped opening is a wavy structure, and the side wall of the stator core is stuck in the wavy structure; and / or the lifting and rotating structure includes a lifting drive member, a connecting shaft, a second fixed seat, a rotating drive member, and a synchronous member, one end of the connecting shaft is arranged on the output end of the lifting drive member, the second fixed seat is arranged on the other end of the connecting shaft, the synchronous member is sleeved on the connecting shaft, and the synchronous member is arranged on the output end of the rotating drive member.

10. A stator processing equipment, characterized in that: The invention comprises a thread cutting device as described in any one of claims 1 to 9.

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