A lamination forming device for motor stator core

Abstract

The invention discloses a laminating and forming device for a motor stator core, which belongs to the technical field of motor manufacturing, and comprises a positioning platform for positioning the core. Clamping parts for clamping the core toward the middle are movably arranged around the positioning platform, and an extrusion part for extruding the core is arranged on the top of the positioning platform for lifting and lowering. A fixing device for fixing the core is also arranged on one side of the positioning platform, and the fixing device comprises a movably arranged conveying pipe and a riveting assembly. A guide pipe is arranged below the conveying pipe, and a conveying assembly is also arranged on the conveying pipe. The conveying assembly drives the riveting wire to pass through the conveying pipe and the guide pipe and extend into the jack of the core. The invention is used to solve the problem that silicon steel sheets are not easy to fix during the laminating and forming process of the stator of a small motor, and the fixing efficiency is low.

Description

Technical Field

[0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a laminating and forming device for a motor stator core. Background Art

[0002] In modern home life, brushless motors are widely used in various types of furniture due to their excellent performance. The stator of a brushless motor is usually made of layers of silicon steel sheets. The choice of silicon steel sheets is not only due to their excellent magnetic properties and conductivity, but also because of their ability to withstand high currents and high temperatures, providing a solid guarantee for the stability and life of the motor.

[0003] In order to maintain the performance of the motor stator, the silicon steel sheets need to be fixed. For the stators of large motors, stacking and welding the silicon steel sheets is a common fixing method. For motors used in small household appliances, mechanical methods such as riveting are usually used for fixing. Therefore, for small motors, there is still a problem: during the riveting process, the iron core needs to be connected with riveting wires, which not only easily leads to the movement of the silicon steel sheets, but also seriously affects the speed and efficiency of fixing.

[0004] With the continuous growth of society's demand for motors, especially the use of some small motors, the processing and fixation of the iron core has become a bottleneck restricting production efficiency. Therefore, a new iron core stacking and forming device is proposed to realize automated stacking and fixation, thereby greatly improving the processing efficiency and meeting the growing market demand. Summary of the invention

[0005] In view of the above problems, the present invention provides a lamination and forming device for a motor stator core, which is used to solve the problem that silicon steel sheets are not easy to fix and have low fixing efficiency during the lamination and forming process of a small motor stator.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A lamination forming device for a motor stator core comprises a positioning platform for positioning the core, a clamping piece for clamping the core toward the middle is movably arranged around the positioning platform, and an extrusion piece for extruding the core is arranged on the top of the positioning platform so as to be lifted and lowered;

[0008] A fixing device for fixing the iron core is also provided on one side of the positioning platform. The fixing device includes a movably arranged conveying pipe and a riveting assembly. A guide pipe is provided below the conveying pipe. A conveying assembly is also provided on the conveying pipe. The conveying assembly drives the riveting wire to pass through the conveying pipe and the guide pipe and extend into the jack of the iron core.

[0009] A push assembly that can be lifted up and down is arranged below the positioning platform. When the riveting assembly extends downward into the guide tube and the push assembly pushes upward synchronously to insert the riveted wire into the iron core, the riveted wire is fixed on the iron core.

[0010] As a further improvement of the above solution, a cutting rod capable of cutting the riveted wire in the guide tube is slidably provided on the side of the guide tube, and one end of the cutting rod is connected to a first driving component that drives the cutting rod to extend and retract and rotate around the axis.

[0011] The cutting end of the cutting rod is provided with an inwardly concave clamping opening, the edge of the clamping opening is a cutting edge, and the inwardly concave surface is a rough friction surface.

[0012] As a further improvement of the above solution, the fixing device further comprises a first mounting seat, a second mounting seat is fixedly arranged at the bottom of the first mounting seat, and a guide rail is arranged on the second mounting seat to facilitate the sliding switching of the conveying pipe and the riveting assembly;

[0013] A movable component is rotatably arranged on the top of the first mounting seat, and a winding roller and a straightening component are arranged on the first mounting seat. The riveted wire on the winding roller passes through the straightening component for straightening and is then introduced into the conveying pipe.

[0014] As a further improvement of the above scheme, the positioning table is rotatably set on the working platform, the pushing assembly is slidably set in the working platform, the upper side of the pushing assembly is provided with a pushing platform for pressing the linear riveted wire, and the pushing assembly is also provided with a bending assembly, which bends the riveted wire passing through the iron core and enters the jack of the iron core again.

[0015] As a further improvement of the above scheme, the bending component includes a movable groove arranged inside the pushing component, a sliding block is elastically and movably arranged in the movable groove, the sliding block is provided with a guide member that slides up and down with the pushing component, and the guide member is provided with a guide groove for bending the rivet line.

[0016] As a further improvement of the above solution, a guide wheel is rotatably provided on the sliding block, and the surface of the guide wheel is concave and rough;

[0017] A straightening platform located on a sliding block is arranged on one side of the guide wheel that extends outward. The straightening platform is tangent to the guide wheel and is arranged vertically.

[0018] As a further improvement of the above solution, a first inclined surface is provided on the sliding block, and the first inclined surface can contact with the bottom wall of the guide member and push the guide member to move upward;

[0019] The working platform is provided with a through groove for accommodating the push assembly, the inner wall of the through groove is provided with a push inclined surface, and a second inclined surface in contact with the push inclined surface is provided at one end of the sliding block extending out of the push assembly;

[0020] One end of the sliding block extending out of the pushing assembly is also provided with a third inclined surface which can contact the edge of the through slot, and the third inclined surface is located on the lower side of the sliding block.

[0021] As a further improvement of the above solution, a discharge device is further provided on the other side of the positioning platform, the discharge device comprises a connecting column, and a second driving component for driving the discharge device to move up and down and rotate around an axis is provided on the top of the discharge device;

[0022] A loading rod is rotatably arranged at the bottom of the connecting column, a sliding sleeve is movably sleeved on the loading rod, a telescopic cylinder is rotatably arranged on the connecting column, and the telescopic shaft end of the telescopic cylinder and the sliding sleeve are hingedly arranged with each other.

[0023] As a further improvement of the above scheme, a flip rod that can flip upward is rotatably provided at the end of the loading rod, a toggle block is rotatably provided inside the loading rod, the toggle block extends out of a part of the loading rod, and a connecting rod located inside the loading rod is hingedly provided on the toggle block, and the connecting rod is transmission-connected to the flip rod;

[0024] A limiting ring for limiting the movable range of the sliding sleeve is also arranged on the loading rod.

[0025] As a further improvement of the above solution, the bottom of the positioning platform is connected to a driving source for driving the positioning platform to rotate;

[0026] A supporting sheet extending outward is arranged on the bottom surface of the positioning platform.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The iron core to be laminated is positioned by the positioning table, and the iron core silicon steel sheets are aligned under the clamping of the clamping member. After alignment, the silicon steel sheets are pressed and fixed under the extrusion of the extrusion member. During the process of pressing and fixing the silicon steel sheets, the fixing device inserts the rivet wires into different jacks of the iron core, and rivets and fixes them after the rivet wires are inserted. After the clamping member is relaxed, the stability of the iron core silicon steel sheets can still be maintained under the fixing effect of the rivet wires. In addition, during the riveting process, the automatic threading and riveting process of the fixing device can significantly improve the processing efficiency of the entire iron core during lamination and formation, which is suitable for mass production needs.

[0029] 2. Through the cooperation of the fixing device and the push assembly, the riveting of the straight section of the riveted wire on the iron core can be realized, and the riveting of the complete riveted wire can also be realized, so as to ensure the stability of the iron core to the greatest extent; in the process of transmitting the riveted wire, the wire is threaded by the drive of the conveying assembly, and the continuous riveted wire is cut off under the action of the conveying pipe, and in the process of riveting the bent riveted wire, the two ends of the riveted wire extend upward from the jack of the iron core. At this time, by rotating the cutting rod, the clamping port can clamp the riveted wire, so that the riveted wire can be clamped, and under the upward pulling action of the movable component, the riveted wire can be pulled upward at the bent part below the iron core, so as to tighten the riveted wire and the iron core, and then the cutting rod is turned over to make the blade of the clamping port cut the riveted wire to complete the cutting of the riveted wire, so that the riveted wire can be quickly tightened and cut, thereby improving the riveting efficiency.

[0030] 3. In the process of threading the bent riveted wire, the riveted wire will be bent under the guidance of the guide groove in the guide member after entering the guide member, and will continue to bend and deform under the guidance of the guide wheel. Under the guidance of the guide wheel, it will be straightened and passed through the second plug hole of the iron core. Under the upward push of the driving source at the bottom of the push assembly, the push inclined surface can press the second inclined surface to retract the sliding block inward. At this time, the guide wheel will no longer block the riveted wire. At the same time, under the push of the first inclined surface on the guide member, the riveted wire will be squeezed and pushed upward, making it easier to tighten the riveted wire upward.

[0031] 4. Under the action of the loading rod, the processed iron core can be turned out, and in the process of turning out, the push assembly pushes one side of the iron core upward, and under the control of the telescopic cylinder, the loading rod is tilted up, and the toggle block is pressed synchronously, thereby synchronously driving the flip rod to tilt upward, so that the iron core can fall stably on the loading rod, and the transfer process is faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the iron core after being laminated and formed in the present invention;

[0033] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 3 for Figure 2 Structural diagram of the middle A direction;

[0035] Figure 4 is a schematic diagram of the structure of the push assembly;

[0036] Figure 5 It is a structural schematic diagram of the unloading device;

[0037] Figure 6 is a schematic diagram of the structure of the fixing device;

[0038] Figure 7 for Figure 4 A partial cross-sectional schematic diagram of the arrangement state between the middle BB direction and the working platform;

[0039] Figure 8 for Figure 5 A schematic diagram of the local enlarged structure at C in the middle;

[0040] Fig. 9 for Figure 6 A schematic diagram of the local enlarged structure at D in the middle;

[0041] Fig.10 for Figure 7 Schematic diagram of the cross-sectional structure in the EE direction;

[0042] Fig.11 It is a schematic diagram of the state of the cutting rod during the cutting process;

[0043] Fig.12 It is a schematic diagram of the working state of the unloading device when taking out the formed iron core.

[0044] In the figure: 10, positioning table; 101, supporting sheet; 11, clamping member; 12, extruding member; 13, fixing device; 1301, conveying tube; 1302, guide tube; 1303, riveting assembly; 1304, conveying assembly; 1305, first mounting seat; 1306, second mounting seat; 1307, movable assembly; 1308, winding roller; 1309, straightening assembly; 1310, cutting rod; 1311, clamping mouth; 14, pushing assembly; 141, top platform; 142, bending assembly ; 1421, movable groove; 1422, sliding block; 1423, guide member; 1424, guide wheel; 1425, first inclined plane; 1426, second inclined plane; 1427, third inclined plane; 1428, straightening table; 15, working platform; 151, through groove; 152, pushing inclined plane; 16, unloading device; 161, connecting column; 162, loading rod; 163, telescopic cylinder; 164, sliding sleeve; 165, turning rod; 166, connecting rod; 167, toggle block; 168, limit ring. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0046] like Figure 1-12As shown, the specific scheme of this embodiment is: a lamination forming device for a motor stator core, including a positioning table 10 for positioning the core, the positioning table 10 is rotatably set on a working platform 15, and the bottom of the positioning table 10 is connected to a driving source for driving it to rotate; the driving source is a set driving motor, and a supporting sheet 101 extending outward is set on the bottom surface of the positioning table 10, and the supporting sheet 101 can support the core, so when fixing different positions on the core, the core can be driven to rotate and change position under the rotation of the positioning table 10.

[0047] The positioning platform 10 is provided with a clamping member 11 around which the core is clamped toward the middle. Figure 2 , 3 As shown, the clamping member 11 is a set clamping plate, and 4 of them are set, and a control mechanism for synchronously controlling the clamping member 11 to clamp to the middle is set in the working platform 15 (not drawn in the accompanying drawings, refer to the structure of the three-jaw chuck). Specifically, the control mechanism includes a rotating disk, and a spiral groove is set on the disk. The spiral groove and the clamping member 11 are set to slide with each other. Therefore, when the rotating disk rotates, the clamping member 11 can be synchronously driven to move on the working platform 15 to achieve the clamping and loosening of the iron core. The top of the positioning platform 10 is set up and down to be lifted and lowered with an extrusion member 12 that can squeeze the iron core. The extrusion member 12 is a set pressure block, and a side corner is provided on the extrusion member 12, which is mainly for exposing the position on the iron core for on-site fixed riveting to facilitate separate fixing processing, and the top of the extrusion member 12 is connected to a hydraulic cylinder that controls its lifting and lowering, which can play a pressing role when the iron core is stacked.

[0048] A fixing device 13 for fixing the iron core is also provided on one side of the positioning platform 10. The fixing device 13 includes a movably arranged delivery pipe 1301 and a riveting assembly 1303. The riveting assembly 1303 is specifically a hydraulic cylinder and a riveting joint at the end of the hydraulic cylinder output shaft. The axes of the delivery pipe 1301 and the riveting assembly 1303 are arranged in parallel and vertically downward. A guide pipe 1302 is provided below the delivery pipe 1301. A delivery assembly 1304 is also provided on the delivery pipe 1301. The delivery assembly 1304 drives the riveting wire to pass through the delivery pipe 1301 and the guide pipe 1302 and extend into the jack of the iron core. Specifically, the riveting wire is a metal wire provided for riveting, such as Figure 1 As shown, the rivet wire at number 1 is bent into a "U" shape to fix the iron core, and the rivet wire at number 2 is in a straight line state, and the two ends are riveted to fix the iron core; the conveying component 1304 is mainly used to convey the rivet wire to complete the threading process of the rivet wire in the iron core. The conveying component 1304 is a conveying wheel group used. The conveying component is a prior art and will not be described again.

[0049] A pushing assembly 14 that can be raised and lowered is provided below the positioning platform 10. Specifically, an electric push rod that drives the pushing assembly 14 to move up and down is provided on the working platform 15. In the specific riveting process, the riveting assembly 1303 extends downward into the guide tube 1302, and the pushing assembly 14 synchronously presses upward to insert the riveted wire in the iron core to fix the riveted wire on the iron core. Therefore, in this application, the riveted wire in the iron core is fixed by the downward extrusion of the riveting assembly 1303 and the upward extrusion of the pushing assembly 14.

[0050] like Figure 1 , 6 As shown in Figures 9 and 11, as a preferred embodiment of the above-mentioned embodiment, a cutting rod 1310 is also slidably provided on the side of the guide tube 1302 for cutting the riveted wire in the guide tube 1302, one end of the cutting rod 1310 is connected to a first driving assembly for driving the extension and rotation thereof around an axis, the first driving assembly includes a driving cylinder for driving the extension and retraction of the cutting rod 1310, and a worm gear is connected to the cutting rod 1310 through a spline, the worm gear is connected to a worm, and the worm gear is connected to a driving motor, and the driving motor can control the rotation of the cutting rod 1310 around the axis when starting, so that the cutting rod 1310 can be rotated to a desired angle under the drive of the motor;

[0051] The cutting end of the cutting rod 1310 is provided with a concave clamping opening 1311, the edge of the clamping opening 1311 is a cutting edge, and the concave surface is a rough friction surface. When the riveted wire being transported needs to be cut, the first driving component first drives the cutting edge of the clamping opening 1311 toward the riveted wire (attached Fig.11 Then, under the drive of the driving cylinder, the cutting rod 1310 is moved close to the riveted wire, and the clamping mouth 1311 cuts the riveted wire; on the other hand, the cutting rod 1310 is rotated to the position as shown in the figure. Fig. 9 When in the state, the inner concave surface of the clamping port 1311 can be made to contact the surface of the rivet wire, and the rivet wire can be clamped under the drive of the driving cylinder. Therefore, when the rivet wire is arranged according to the "U" shape structure, it can be pulled out of the iron core from the end where the rivet wire passes through.

[0052] As a preferred embodiment of the above embodiment, the fixing device 13 further includes a first mounting seat 1305, a second mounting seat 1306 is fixedly arranged at the bottom of the first mounting seat 1305, a guide rail is arranged on the second mounting seat 1306 for facilitating the sliding switching of the conveying pipe 1301 and the riveting assembly 1303, and a driving source (not shown in the drawings, and arranged as needed, such as an electric push rod, a cylinder, etc.) for driving the conveying pipe 1301 and the riveting assembly 1303 to move and change is also arranged on the second mounting seat 1306;

[0053] The top of the first mounting seat 1305 is rotatably provided with a movable component 1307. Specifically, the movable component 1307 is a movable seat that is arranged to move laterally along the three coordinate axes of x, y, and z. At the same time, a motor that is convenient for controlling its rotation is also arranged on the first mounting seat 1305. With the cooperation of the movable component 1307, it is convenient to adjust the change of spatial position to realize riveting at different positions. A winding roller 1308 and a straightening component 1309 are arranged on the first mounting seat 1305. The riveted wire is wound on the winding roller 1308. The straightening component 1309 is specifically a plurality of straightening wheel groups. The riveted wire on the winding roller 1308 is straightened through the straightening component 1309 and then introduced into the conveying pipe 1301. Please refer to the attached figure for details. Figure 6 shown.

[0054] like Figure 1 , 2 As shown in Figures 3, 7 and 10, as a preferred embodiment of the above-mentioned embodiment, the pushing assembly 14 is slidably arranged in the working platform 15, and the upper side surface of the pushing assembly 14 is provided with a top platform 141 for pressing the linear riveted wire. The pushing assembly 14 is also provided with a bending assembly 142, and the bending assembly 142 bends the riveted wire passing through the iron core and re-enters the jack of the iron core.

[0055] Specifically, the bending assembly 142 includes a movable groove 1421 (such as Figure 7 ), a sliding block 1422 is elastically and movably provided in the movable groove 1421. Specifically, a spring is provided in the movable groove 1421 to push the sliding block 1422, and the movable groove 1421 opens upward. A cover plate fixed to the pushing assembly 14 is fixed at the opening of the movable groove 1421. The cover plate and the sliding block 1422 slide with each other to prevent the sliding block 1422 from popping out. The sliding block 1422 is provided with a guide member 1423 that slides up and down with the pushing assembly 14. The pushing assembly 14 is provided with a sliding groove that guides the guide member 1423 to ensure that the guide member 1423 can slide straight up and down in the pushing assembly 14. A guide groove is provided in the guide member 1423 to guide the rivet line to bend. Fig.10 The guide groove is an arc structure, mainly to allow the riveted wire to bend upward and penetrate into the next insertion hole of the iron core after it extends downward into the guide member 1423, thereby forming a "U"-shaped fixed structure;

[0056] As a preferred mode of the above-mentioned embodiment, a guide wheel 1424 is rotatably arranged on the sliding block 1422, and the surface of the guide wheel 1424 is concave and rough. Such arrangement enables the guide wheel 1424 to guide the bending of the rivet wire and reduce the friction of the rivet wire during the bending process, making the bending easier. Moreover, with the cooperation of the guide wheel 1424 and the guide member 1423, the rivet wire can be bent. However, since the rivet wire has plastic deformation after bending, the rivet wire will become a circle. Therefore, in order to enable the rivet wire to be normally inserted into the iron core again, a straightening table 1428 located on the sliding block 1422 is arranged on the protruding side of the guide wheel 1424. The straightening table 1428 is tangent to the guide wheel 1424 and is arranged vertically. Therefore, under the obstruction of the straightening table 1428, the bent rivet wire can be straightened again, so that the bent rivet wire can be smoothly inserted into the iron core again; in addition, in order to reduce friction, lubricating oil can be applied to the guide member 1423.

[0057] As a preferred mode of the above-mentioned embodiment, in order to make the rivet wire inserted into the iron core for the second time be tightened in the iron core, a first inclined surface 1425 is provided on the sliding block 1422, and the first inclined surface 1425 can contact with the bottom wall of the guide member 1423 and push the guide member 1423 to move upward. Specifically, during the movement of the sliding block 1422, the sliding block 1422 shrinks into the movable groove 1421. At this time, under the action of the first inclined surface 1425, the guide member 1423 can be pushed to move upward. In addition, during the retraction of the sliding block 1422, the guide wheel 1424 and the straightening table 1428 are moved away from above the rivet wire, which can facilitate the guide member 1423 to push the rivet wire upward. Then, with the clamping of the rivet wire by the cutting rod 1310, the rivet wire can be pulled out of the iron core upward under the pulling of the movable component 1307 moving upward, and then cut and riveted, so that the iron core is fixed by the rivet wire.

[0058] In order to control the extension and retraction of the sliding block 1422, a through slot 151 is provided on the working platform 15 to accommodate the pushing assembly 14. A pushing inclined surface 152 is provided on the inner wall of the through slot 151, and a second inclined surface 1426 in contact with the pushing inclined surface 152 is provided at one end of the sliding block 1422 extending out of the pushing assembly 14. Figure 7 As shown, when the electric push rod connected to the push assembly 14 pushes it to move upward, the sliding block 1422 can be pushed inwardly to retract under the mutual compression of the push inclined surface 152 and the second inclined surface 1426, so as to facilitate the rivet wire to be pushed out from the guide member 1423;

[0059] One end of the sliding block 1422 extending out of the pushing assembly 14 is also provided with a third inclined surface 1427 that can contact the edge of the through groove 151. The third inclined surface 1427 is located on the lower side of the sliding block 1422. The third inclined surface 1427 is mainly provided to contact the edge of the through groove 151 during the retraction process after the pushing assembly 14 exceeds the upper surface of the working platform 15, so that the sliding block 1422 can continue to retract smoothly, so as to avoid the sliding block 1422 being stuck during the downward movement of the pushing assembly 14.

[0060] like Figure 1 , 5 , 8, and 12, as a preferred embodiment of the above-mentioned embodiment, in order to facilitate the delivery of the laminated core, a discharge device 16 is further provided on the other side of the positioning platform 10, and the discharge device 16 includes a connecting column 161. A second driving component for driving the discharge device 16 to lift up and down and rotate around an axis is provided on the top of the discharge device 16. The second driving component is fixedly arranged with the working platform 15 through a connecting rod. The second driving component includes a driving cylinder fixedly connected to the connecting rod bracket. The output shaft end of the cylinder is connected to a connecting seat. The connecting seat and the connecting column 161 are rotatably arranged with each other, and a driving motor for driving the connecting column 161 to rotate is provided on the connecting seat;

[0061] A loading rod 162 is rotatably provided at the bottom of the connecting column 161. The loading rod 162 is specifically turned upside down. A sliding sleeve 164 is movably sleeved on the loading rod 162. A telescopic cylinder 163 is rotatably provided on the connecting column 161. The end of the telescopic shaft of the telescopic cylinder 163 and the sliding sleeve 164 are hingedly provided with each other. During the extension and contraction of the telescopic cylinder 163, the loading rod 162 can be driven to turn upward or downward; a flip rod 165 that can be flipped upward is rotatably provided at the end of the loading rod 162, and the flip rod 165 can only turn upward. A toggle block 167 is rotatably provided in the loading rod 162, and the toggle block 167 extends out of a part of the loading rod 162, and a connecting rod 166 located in the loading rod 162 is hingedly provided on the toggle block 167, and the connecting rod 166 is transmission-connected to the flip rod 165. A limiting ring 168 for limiting the movable range of the sliding sleeve 164 is also provided on the loading rod 162. Figure 5 As shown, the linkage rod 166 is hingedly arranged between the linkage rod and the flip rod 165. When the telescopic cylinder 163 drives the sliding sleeve 164 to move toward the side of the toggle block 167, the toggle block 167 will flip into the loading rod 162, so that the linkage rod 166 pushes the flip rod 165 to flip upward; Fig.12As shown, after the pushing assembly 14 pushes the iron core upward to an inclined state, the loading rod 162 and the flipping rod 165 extend into the center hole of the iron core, and under the control of the telescopic cylinder 163, the loading rod 162 will flip upward to take out the iron core. While continuing to drive the loading rod 162 to flip upward, the sliding sleeve 164 can push the toggle block 167 to flip, which will drive the connecting rod 166 to control the flipping rod 165 to flip upward to prevent the iron core from slipping off the loading rod 162.

[0062] The specific working principle of the present invention is as follows: first, the iron core silicon steel sheets to be processed are stacked on the positioning table 10 according to a predetermined number, and the silicon steel sheets are aligned, and then the clamping member 11 is controlled to move synchronously toward the middle to clamp the silicon steel sheets. During the clamping process, the misaligned silicon steel sheets can be forced to align. At this time, the extrusion member 12 is controlled to move downward to clamp and fix the silicon steel sheets downward;

[0063] Then, by controlling the movement of the movable component 1307, firstly, the guide tube 1302 is aligned with the linear rivet wire insertion hole on the iron core, and the rivet wire is inserted into the hole. During the upward movement of the push component 14 and the downward movement of the riveting component 1303, the rivet wire is pushed and fixed to complete the riveting.

[0064] For the riveted wire of the "U"-shaped structure, the two guide tubes 1302 and a pair of jacks are controlled to be aligned respectively, and then one of the guide tubes 1302 is inserted into the riveted wire downward, and is bent back and inserted when passing through the bending component 142, and is passed out from the other guide tube 1302, and then the push component 14 is controlled to move upward for a distance, so that the riveted wire can be pulled out of the bending component 142, and the cutting rod 1310 is controlled to clamp the riveted wire in the guide tube 1302, and under the action of the movable component 1307, the riveted wire is driven to be pulled upward from the iron core hole. When pulling it out, only the riveted wire on one side of the threading can be pulled, and the cutting rod 1310 on the other side clamps the riveted wire and does not move it, so that the waste of the riveted wire can be reduced, and then the guide tube 1302 is controlled to move downward, and then the cutting rod 1310 is controlled to rotate 180 degrees to cut off the riveted wire. After cutting, the riveted wires at both ends can be fixed on the iron core under the pressure of the riveting component 1303;

[0065] After the iron core is fixed, the fixed iron core can be hooked up and removed from the positioning platform 10 by the cooperation of the unloading device 16 under the upward push of the pushing assembly 14, and then the iron core is sent out under the drive of the second driving assembly.

[0066] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A lamination forming device for a motor stator core, characterized in that: It comprises a positioning platform (10) for positioning the iron core, a clamping member (11) for clamping the iron core toward the middle is movably arranged around the positioning platform (10), and an extrusion member (12) for extruding the iron core is arranged on the top of the positioning platform (10) so as to be lifted up and down; A fixing device (13) for fixing the iron core is also provided on one side of the positioning platform (10), the fixing device (13) comprising a movably arranged conveying tube (1301) and a riveting assembly (1303), a guide tube (1302) being provided below the conveying tube (1301), a conveying assembly (1304) being further provided on the conveying tube (1301), and the conveying assembly (1304) driving the riveting wire to pass through the conveying tube (1301) and the guide tube (1302) and extend into the jack of the iron core; A push assembly (14) that can be lifted up and down is provided below the positioning platform (10); when the riveting assembly (1303) extends downward into the guide tube (1302) and the push assembly (14) pushes upward synchronously to insert the riveted wire into the iron core, the riveted wire is fixed to the iron core; The positioning table (10) is rotatably arranged on the working platform (15), the pushing assembly (14) is slidably arranged in the working platform (15), the upper side surface of the pushing assembly (14) is provided with a pushing platform (141) for pressing the linear riveted wire, and the pushing assembly (14) is also provided with a bending assembly (142), the bending assembly (142) bends the riveted wire passing through the iron core and allows it to enter the insertion hole of the iron core again; The bending assembly (142) comprises a movable groove (1421) arranged inside the pushing assembly (14), a sliding block (1422) being elastically and movably arranged inside the movable groove (1421), a guide member (1423) being arranged on the sliding block (1422) and being slidable up and down with the pushing assembly (14), and a guide groove for guiding the rivet line to bend is arranged inside the guide member (1423).

2. The lamination forming device for a motor stator core according to claim 1, characterized in that: A cutting rod (1310) is also slidably provided on the side of the guide tube (1302) for cutting the riveted wire in the guide tube (1302), and one end of the cutting rod (1310) is connected to a first driving component for driving the cutting rod (1310) to extend and retract and rotate around an axis. The cutting end of the cutting rod (1310) is provided with an inwardly concave clamping opening (1311), the edge of the clamping opening (1311) is a cutting edge, and the inwardly concave surface is a rough friction surface.

3. The lamination forming device for a motor stator core according to claim 2, characterized in that: The fixing device (13) further comprises a first mounting seat (1305), a second mounting seat (1306) being fixedly arranged at the bottom of the first mounting seat (1305), and a guide rail for facilitating the sliding switching of the conveying pipe (1301) and the riveting assembly (1303) is arranged on the second mounting seat (1306); A movable component (1307) is rotatably provided on the top of the first mounting seat (1305), and a winding roller (1308) and a straightening component (1309) are provided on the first mounting seat (1305). The riveted wire on the winding roller (1308) passes through the straightening component (1309) for straightening and is then introduced into the conveying pipe (1301).

4. The lamination forming device for a motor stator core according to claim 1, characterized in that: A guide wheel (1424) is rotatably provided on the sliding block (1422), and the surface of the guide wheel (1424) is concave and rough; A straightening platform (1428) located on the sliding block (1422) is provided on the protruding side of the guide wheel (1424); the straightening platform (1428) is tangent to the guide wheel (1424) and is arranged vertically.

5. The lamination forming device for a motor stator core according to claim 1, characterized in that: A first inclined surface (1425) is provided on the sliding block (1422), and the first inclined surface (1425) can contact the bottom wall of the guide member (1423) and push the guide member (1423) to move upward; The working platform (15) is provided with a through groove (151) for accommodating the pushing assembly (14), an inner wall of the through groove (151) is provided with a pushing inclined surface (152), and a second inclined surface (1426) in contact with the pushing inclined surface (152) is provided at one end of the sliding block (1422) extending out of the pushing assembly (14); One end of the sliding block (1422) extending out of the push assembly (14) is also provided with a third inclined surface (1427) capable of contacting the edge of the through slot (151), and the third inclined surface (1427) is located on the lower side of the sliding block (1422).

6. The lamination forming device for a motor stator core according to claim 1, characterized in that: A discharge device (16) is also provided on the other side of the positioning platform (10), the discharge device (16) comprising a connecting column (161), and a second driving component for driving the discharge device (16) to move up and down and rotate around an axis is provided on the top of the discharge device (16); A loading rod (162) is rotatably disposed at the bottom of the connecting column (161), a sliding sleeve (164) is movably sleeved on the loading rod (162), a telescopic cylinder (163) is rotatably disposed on the connecting column (161), and the end of the telescopic shaft of the telescopic cylinder (163) and the sliding sleeve (164) are hingedly disposed with each other.

7. The lamination forming device for a motor stator core according to claim 6, characterized in that: The end of the loading rod (162) is rotatably provided with a flipping rod (165) that can flip upwards, and a toggle block (167) is rotatably provided inside the loading rod (162). The toggle block (167) extends out of a portion of the loading rod (162), and a connecting rod (166) located inside the loading rod (162) is hingedly provided on the toggle block (167). The connecting rod (166) is transmission-connected to the flipping rod (165); A limiting ring (168) for limiting the range of motion of the sliding sleeve (164) is also provided on the loading rod (162).

8. A lamination forming device for a motor stator core according to any one of claims 1 to 7, characterized in that: The bottom of the positioning platform (10) is connected to a driving source for driving the positioning platform (10) to rotate; A supporting sheet (101) extending outward is arranged on the bottom surface of the positioning platform (10).

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