CN111835159A - Rounding and shaping die for straight stator core - Google Patents

Abstract

The invention relates to a rounding and shaping die for a straight stator core. The pressing and rounding machine comprises a machine frame, a top pressing and reshaping mechanism, a pressing and reshaping mechanism and a rounding and reshaping mechanism. The method comprises the steps of firstly sleeving a straight stator core on a shaping center mold core in advance, then sequentially jacking the straight stator core by a plurality of rounding components, pressing the straight stator core into a circular ring by the plurality of rounding components, enabling two ends of an opening of the straight stator core to be abutted together so as to ensure the roundness of the straight stator core, then jacking the upper end face and the lower end face of the inner circle of the core of the straight stator core up and down by the jacking shaping mechanism and the pressing shaping mechanism together, pressing all parts on the same horizontal plane at the top of the straight stator core to be flush by the jacking shaping mechanism and the pressing shaping mechanism, pressing all parts on the same horizontal plane at the bottom of the straight stator core to be flush by the pressing shaping mechanism, and finally ensuring that the roundness and the verticality of the welded stator core meet requirements and the product quality is qualified.

Description

Rounding and shaping die for straight stator core

Technical Field

The invention relates to a rounding and shaping die for a straight bar stator iron core, which is designed aiming at a straight bar iron core for a motor stator which is in a straight bar shape in an initial state and in a ring shape after being shaped.

Background

Most motor vertical bar stator core generally adopts the coiling shaping at present, and the shape of vertical bar stator core before the wire winding is circular mostly, nevertheless it is big to carry out the wire winding on circular shape vertical bar stator core and has the wire winding degree of difficulty, and the long groove of wire winding time is full rate low, and the copper line is extravagant big, shortcoming such as production efficiency low. Therefore, the bar-shaped stator iron core is partially adopted, and the bar shape means that the bar-shaped stator iron core is in a bar shape before the winding is finished. The winding difficulty is reduced on the bar-shaped straight stator core slot type, and the production efficiency is high. And after the winding is finished, bending and shaping the strip-shaped straight stator core into a circular ring shape.

The circle device of the existing straight bar stator iron core is pressed into a circular ring shape through a plurality of oil cylinders, but although the stamping stroke of the oil cylinders is fixed, the stamping stroke of the oil cylinders cannot be adjusted, and the oil cylinders are pressed to the bottom, so that the pressed straight bar stator iron core is changed into an oval shape, and the roundness of the straight bar stator iron core is influenced, so that the product is deformed. In addition, the existing rounding and shaping die for the straight bar stator core presses the top and the bottom of the plastic framework of the straight bar stator core through the upper and the lower air cylinders, so that the straight bar stator core is positioned up and down. However, the plastic framework of the straight stator core is easily damaged (has a gap), so that the heights of all parts of the straight stator core are inconsistent, and finally, the pressed part of the iron core is inclined, vertically staggered and influenced in verticality. Therefore, the structure of the existing circle device of the straight bar stator core needs to be further improved.

Disclosure of Invention

The invention aims to provide a rounding and shaping die for a straight bar stator core, which can improve the roundness and the verticality of the straight bar stator core and ensure the product quality of the straight bar stator core.

The purpose of the invention is realized as follows:

a rounding and shaping die for a straight stator core comprises a frame, a shaping seat, a jacking and shaping mechanism, a pressing and shaping mechanism and a rounding and shaping mechanism.

The shaping seat is arranged on the frame and used for positioning and forming the pre-bent straight stator core.

And the downward pressing and shaping mechanism is used for pressing the upper end face of the inner circle of the iron core of the straight bar stator iron core downward.

The jacking shaping mechanism is arranged on the rack and used for upwards jacking the lower end face of the inner circle of the iron core of the straight stator iron core.

The rounding mechanism comprises a plurality of rounding components, the rounding components are arranged on the shaping seat at annular intervals and used for pressing the straight strip stator core on the shaping seat into a circular ring shape, and two ends of the straight strip stator core are abutted together.

The present invention may be further improved as follows.

The outer guide holder of plastic is the annular, plastic center mold core is cylindricly, plastic center mold core and the outer guide holder of plastic set up with one heart, the outer guide holder of plastic is located the outside of plastic center mold core, annular interval is provided with many location groove of stepping down on the lateral wall of plastic center mold core, the position annular interval that corresponds many location groove of stepping down on the plastic seat is provided with a plurality of thimbles hole of stepping down.

A plurality of shaping guide rails are arranged on the shaping outer guide seat at annular intervals.

The outer side wall of the shaping center mold core is provided with a positioning block, the positioning block is provided with a stator positioning convex tip in a vertical shape, and when the pre-bent straight stator core is sleeved on the shaping center mold core, the stator positioning convex tip is inserted into a gap on an iron core circle of the straight stator core, so that the straight stator core is positioned.

The positioning yielding groove is a vertical strip-shaped positioning yielding groove and plays roles of yielding and guiding, and the positioning yielding groove guides the flattening thimble and the flattening sleeve to slide up and down and also plays a role of yielding for pressing the flat-topped needle to press the inner circle of the straight strip stator core.

The rounding and shaping component comprises a shaping oil cylinder, a shaping rounding slide block, an adjusting fixed block, a first adjusting bolt and a second adjusting bolt, the rear end of the adjusting slide block is connected with an oil cylinder joint of the shaping oil cylinder in an up-down sliding manner, the front end of the adjusting slide block is connected with the first end of the shaping rounding slide block in an up-down sliding manner through a transmission guide inclined convex block and a transmission guide inclined groove, the transmission guide inclined convex block is embedded into the transmission guide inclined groove, and is in transmission fit with the inclined plane of the transmission guide chute, the second end of the shaping rounding slide block is provided with a rounding surface, the adjusting fixed block is arranged on the shaping rounding slide block or the shaping oil cylinder, and the first adjusting bolt downwards penetrates through the adjusting fixed block and is in threaded connection with the adjusting slide block, and the second adjusting bolt downwards penetrates through the adjusting fixed block and abuts against the adjusting slide block. The adjusting slider can slide up and down by rotating the first adjusting bolt in the forward direction or the reverse direction, and the adjusting slider can drive the shaping rounding slider to move forward or backward for a short distance when the adjusting slider is lifted and descended due to the fact that the front end of the adjusting slider is in transmission fit with the first end of the shaping rounding slider through the transmission guide inclined convex block and the transmission guide inclined groove inclined surface, so that the punching stroke of the shaping rounding slider can be finely adjusted, and the roundness of the straight stator core after rounding is guaranteed. After the stamping stroke of the shaping and rounding slide block is adjusted, the worker rotates the second adjusting bolt again to enable the second adjusting bolt to downwards press the adjusting slide block so as to fix the stamping stroke of the shaping and rounding slide block.

For example, when the punching stroke of a shaping rounding slide block is too deep, which results in that the roundness of the welded stator core is not high, a worker can rotate a first adjusting bolt in a forward direction and rotate a second adjusting bolt in a reverse direction, the first adjusting bolt drives the adjusting slide block to slide upwards, the second adjusting bolt also slides upwards, and the adjusting slide block drives the shaping rounding slide block to move a small distance outwards from the shaping seat.

When the punching stroke of a certain shaping rounding slide block is too shallow, the roundness of a welded stator core is not high, a worker can rotate a first adjusting bolt in the reverse direction and rotate a second adjusting bolt in the forward direction, the first adjusting bolt drives the adjusting slide block to slide downwards, the adjusting slide block drives the shaping rounding slide block to move a small distance into the shaping seat, and the second adjusting bolt also moves downwards and presses the adjusting slide block. Therefore, the invention can ensure the roundness of the welded stator core by finely adjusting and shaping the stamping stroke of the rounding slide block.

The transmission guide inclined convex block and the transmission guide chute are both long, and extend obliquely along the height direction. The transmission guide chute not only guides the transmission guide inclined convex block to lift, but also is in transmission fit with the inclined surface of the transmission guide inclined convex block, and the lifting sliding of the adjusting slide block can drive the shaping rounding slide block to horizontally slide back and forth, so that the stamping stroke of the shaping rounding slide block can be adjusted.

The front end of the adjusting slide block is provided with the transmission guide inclined groove, the first end of the reshaping rounding slide block is provided with the transmission guide inclined lug, of course, the transmission guide inclined lug can also be designed at the front end of the adjusting slide block, and the transmission guide inclined groove is designed at the first end of the reshaping rounding slide block, so that the aim of the invention can be achieved.

The front side and the rear side of the transmission guide inclined lug are respectively provided with a first inclined surface and a second inclined surface which are parallel to each other, the front side and the rear side of the transmission guide inclined lug are respectively provided with a third inclined surface and a fourth inclined surface which are parallel to each other, the first inclined surface is abutted against the third inclined surface, the second inclined surface is abutted against the fourth inclined surface, when the transmission guide inclined lug ascends along with the adjusting slider, the second inclined surface of the transmission guide inclined lug pushes the fourth inclined surface of the guide inclined groove backwards so that the guide inclined groove and the shaping rounding slider slide backwards slide, and when the transmission guide inclined lug descends along with the adjusting slider, the first inclined surface of the transmission guide inclined lug pushes the third inclined surface of the transmission guide inclined groove forwards so that the transmission guide inclined groove and the shaping rounding slider slide forwards and further realize the punching stroke of the fine-tuning shaping rounding slider.

The first end of the shaping rounding slider is provided with a first T-shaped convex block, the front end of the adjusting slider is provided with a first T-shaped groove, the first T-shaped convex block extends into the first T-shaped groove and is in vertical sliding connection with the first T-shaped groove, two side walls of the first T-shaped convex block are provided with the transmission guide chute, and two side walls of the first T-shaped groove are provided with the transmission guide inclined convex blocks. Due to the design, the shaping rounding slide block and the adjusting slide block can slide up and down relatively while being connected, and the lifting slide of the adjusting slide block can drive the shaping rounding slide block to horizontally slide back and forth due to the inclined surface transmission fit of the transmission guide inclined groove and the transmission guide inclined convex block, so that the stamping stroke of the shaping rounding slide block is adjusted.

The front side wall and the rear side wall of the transmission guide inclined lug are respectively the first inclined surface and the second inclined surface, and the front side wall and the rear side wall of the transmission guide inclined groove are respectively the third inclined surface and the fourth inclined surface. The end part of the oil cylinder joint is provided with a second T-shaped lug, the rear end of the adjusting slide block is provided with a second T-shaped groove, and the second T-shaped lug stretches into the second T-shaped groove and is connected with the second T-shaped groove in a vertical sliding mode. Due to the design, the oil cylinder joint and the adjusting slide block can slide up and down relatively while the connection between the oil cylinder joint and the adjusting slide block is realized.

The first inclined surface has an acute angle a of 0.6 ° to 0.9 ° with the vertical plane D, the acute angle a preferably being 0.86 °.

The jacking shaping mechanism comprises a jacking cylinder, a support frame, a jacking guide seat and a jacking needle seat, the support frame is arranged at the bottom of the rack, the jacking cylinder is arranged on the support frame, the jacking needle seat is positioned above the jacking cylinder, the jacking needle seat is arranged at the bottom of the shaping seat in a vertically sliding manner, the jacking cylinder drives the jacking needle seat to slide, a plurality of flattening thimbles are arranged on the jacking needle seat at annular intervals, the horizontal heights of the topmost ends of the plurality of flattening thimbles are the same, and the positions of the flattening thimbles correspond to the positions of the thimble yielding holes. When the jacking seat ascends, the flattening thimble upwards passes through the abdicating hole.

The jacking guide seat is arranged on the support frame in a vertically sliding mode, and the jacking needle seat is located on the jacking guide seat. The jacking guide seat is provided with a guide sleeve, and the guide sleeve is arranged on the support frame in a vertically sliding manner. According to the design, the cylinder rod of the jacking cylinder is not connected with the jacking guide seat, the thimble seat is not connected with the jacking guide seat, and the jacking guide seat only plays a role of jacking the thimble seat.

The bottom of plastic seat is equipped with thimble lift guide bar, it is equipped with thimble lift guiding hole to correspond thimble lift guide bar on the thimble seat, the thimble seat is established on thimble lift guide bar through thimble lift guiding hole cover, the cover is equipped with reset spring on the thimble lift guide bar, reset spring's upper end is supported and is leaned on the bottom of plastic seat, reset spring's lower extreme is supported and is leaned on the thimble seat, thimble lift guide bar is provided with the anticreep piece in the below of thimble seat. When the cylinder pole shrink of jacking cylinder descends, the jacking cylinder no longer roof pressure thimble seat, reset spring resumes deformation, reset spring down pushes away the thimble seat, the thimble seat down slides along thimble lift guide bar under reset spring's effect, the thimble that flattens descends thereupon to the location of breaking away from plastic center mold core groove of stepping down, when the thimble seat descends to the anticreep piece on, the anticreep piece blocks the thimble seat and continues to descend, therefore the thimble seat keeps on thimble lift guide bar. When the cylinder rod of the jacking cylinder extends upwards, the jacking cylinder jacks the thimble seat, the reset spring is compressed and deformed by the thimble seat, the thimble seat slides upwards along the thimble lifting guide rod, the flattening thimble rises along with the thimble, the flattening thimble upwards penetrates through the thimble abdicating hole, and the flattening thimble upwards inserts into the positioning abdicating groove of the shaping center mold core.

The push-down shaping mechanism comprises a push-down cylinder, a push-down lifting seat and a flattening sleeve, the push-down lifting seat is arranged on a cylinder rod of the push-down cylinder and is located below the push-down cylinder, the flattening sleeve is cylindrical, a plurality of reinforcing guide protruding strips are arranged on the inner side wall of the flattening sleeve at intervals, and the positions of the reinforcing guide protruding strips are aligned with the positions of the positioning yielding grooves. When the flattening sleeve is lifted, the reinforcing guide convex strips are inserted into the positioning abdicating grooves and matched with the positioning abdicating grooves in a lifting and guiding manner, and the reinforcing guide convex strips and the positioning abdicating grooves guide the flattening sleeve to lift and slide. Therefore, the reinforcing guide raised lines not only play a role in reinforcing the strength of the flattening sleeve, but also play a role in guiding the flattening sleeve to lift.

The bottom end face of the flattening sleeve is in a horizontal plane shape, so that the bottom end face of the flattening sleeve can press all parts of the same horizontal plane at the top of the straight bar stator core to be horizontal and level.

The lateral wall of the bottom end of the flattening sleeve is in a necking shape, so that the bottom end of the flattening sleeve extends into the straight bar stator core, and the flattening sleeve cannot interfere with the straight bar stator core.

And the rack is provided with a detection photoelectric switch for detecting whether the shaping seat is provided with the straight bar stator core or not. When the detection photoelectric switch detects that the straight stator core is arranged on the shaping center die core, the detection photoelectric switch can send a material signal to a controller of the whole machine. When the detection photoelectric switch detects that the straight stator core is arranged on the shaping center die core, the detection photoelectric switch can send a 'no material' signal to a controller of the whole machine.

The invention has the following beneficial effects:

the method comprises the steps that a straight stator core is sleeved on a shaping center mold core in advance, then the straight stator core is sequentially jacked by a plurality of rounding components, the straight stator core is pressed into a circular ring by the rounding components, two ends of an opening of the straight stator core are abutted together, so that the roundness of the straight stator core is guaranteed, then the upper end face and the lower end face of an iron core inner circle of the straight stator core are jacked up and down through a jacking shaping mechanism and a pressing shaping mechanism, the jacking shaping mechanism presses all parts on the same horizontal plane at the top of the straight stator core to be parallel and level, the pressing shaping mechanism presses all parts on the same horizontal plane at the bottom of the straight stator core to be parallel and level, then welding is carried out by a welding robot, and finally the roundness and the verticality of the welded stator core are guaranteed to meet requirements, and the product quality is qualified.

And (II) through the jacking shaping mechanism and the pressing shaping mechanism, the upper end surface and the lower end surface of the iron core inner circle of the straight stator iron core are jacked up and down together, the iron core inner circle is a metal part of the straight stator iron core, the iron core inner circle is not easy to damage and damage, if the partial position of the straight stator iron core is vertically staggered, inclined and the like, namely all parts of the top of the straight stator iron core are not on the same horizontal plane or all parts of the bottom of the straight stator iron core are not on the same horizontal plane (not parallel and level), the flattening thimble and the flattening sleeve can press the non-parallel position on the straight stator iron core to be parallel and level, so that all parts of the same horizontal plane of the top of the straight stator iron core are kept parallel and level, all parts of the same horizontal plane of the bottom of the straight stator iron core are kept parallel and level, and finally.

And (III) the adjusting slide block can slide up and down by rotating the first adjusting bolt in the forward direction or the reverse direction, and the adjusting slide block can drive the shaping rounding slide block to move forwards or backwards for a small distance when the adjusting slide block is lifted and descended due to the fact that the front end of the adjusting slide block is in transmission fit with the first end of the shaping rounding slide block through the transmission guide inclined convex block and the transmission guide inclined groove inclined plane, so that the punching stroke of the shaping rounding slide block can be finely adjusted, and the roundness of the straight stator core after rounding is guaranteed.

And (IV) in addition, after the stamping stroke of the shaping and rounding slide block is adjusted, the worker rotates the second adjusting bolt again to enable the second adjusting bolt to downwards press the adjusting slide block, so that the adjusting slide block does not slide up and down any more, and the stamping stroke of the shaping and rounding slide block is fixed.

Drawings

Fig. 1 is a schematic structural view of a rounding and shaping die for a straight bar stator core according to the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 from another angle.

Fig. 3 is a schematic structural view of the present invention in a rounded state.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a cross-sectional view at a-a in fig. 4.

Fig. 6 is a schematic cross-sectional view of fig. 5 in a rounded state.

Fig. 7 is an enlarged view at a in fig. 5.

Fig. 8 is an enlarged view at B in fig. 6.

Fig. 9 is a schematic view of a connecting structure of the rounding mechanism and the shaping base according to the present invention.

Fig. 10 is a schematic view of the structure of fig. 9 at another angle.

Fig. 11 is a schematic structural view of the truing seat of the present invention.

Fig. 12 is a schematic view of the structure of fig. 10 from another angle.

Figure 13 is a schematic diagram of the structure of the rounding assembly of the present invention.

Fig. 14 is a schematic view of the structure of fig. 13 at another angle.

Fig. 15 is a top view of fig. 13.

Figure 16 is an exploded view of the rounding assembly of the present invention.

Fig. 17 is a cross-sectional view at B-B in fig. 15.

Fig. 18 is a cross-sectional view at C-C in fig. 15.

Fig. 19 is a schematic structural view of the top pressure shaping mechanism of the present invention.

Fig. 20 is a schematic view of the structure of fig. 19 from another angle.

Fig. 21 is a schematic structural view of the push-down shaping mechanism of the present invention.

Fig. 22 is a schematic view of the structure of fig. 21 from another angle.

Fig. 23 is an enlarged view at C in fig. 22.

Fig. 24 is a schematic view of the structure of a straight bar stator core produced by the present invention.

Fig. 25 is a schematic structural view of a reforming center core of the present invention.

Fig. 26 is a schematic structural view of a straight stator core (copper wire omitted) processed by the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

In a first embodiment, as shown in fig. 1 to 26, a rounding and shaping mold for a straight stator core includes a frame 1, a controller (not shown in the figure) flattening and shaping device 40, and a rounding and shaping mechanism 2.

Press round shaping mechanism 2, including a plurality of round shaping subassemblies 23 of pressing, a plurality of round shaping subassemblies 23 annular interval settings are on plastic seat 20 for press into the ring shape with the straight fixed iron core on plastic seat 20, and make the both ends of straight stator core 5 support by together.

The flattening and shaping device 40 is arranged on the frame 1 and used for pressing the straight stator core 5 up and down so as to enable all positions on the same horizontal plane at the top of the straight stator core 5 to be kept level and all positions on the same horizontal plane at the bottom of the straight stator core 5 to be kept level.

The present invention is a more specific embodiment.

The flattening and shaping device 40 comprises a shaping seat 20, a pressing and shaping mechanism 3 and a jacking and shaping mechanism 4, wherein the shaping seat 20 is arranged on the rack 1 and used for positioning and forming the pre-bent straight stator core 5. And the downward pressing and shaping mechanism 3 is used for pressing the upper end face of the iron core inner circle 51 of the straight stator iron core 5 downward. The top pressure shaping mechanism 4 is arranged on the frame 1 and is used for upwards jacking the lower end face of the iron core inner circle 51 of the straight stator iron core 5.

Be equipped with outer guide holder 24 of plastic center mold core 21, center seat 210 and plastic on the plastic seat 20, outer guide holder 24 of plastic is the annular, plastic center mold core 21 is cylindricly, plastic center mold core 21 is located on center seat 210, locate in the outer guide holder 24 of plastic on the center seat 210, outer guide holder 24 of plastic is located the outside of plastic center mold core 21, plastic center mold core 21 and the outer guide holder 24 of plastic set up with one heart, annular interval is provided with many location groove 211 of stepping down on the lateral wall of plastic center mold core 21, the position annular interval that corresponds many location grooves 211 of stepping down on the plastic seat 20 is provided with a plurality of thimble holes 28 of stepping down.

A plurality of shaping guide rails 27 are arranged on the shaping outer guide seat 24 at intervals in an annular manner, the plurality of rounding assemblies 23 are distributed on the plurality of shaping guide rails 27, and the plurality of shaping guide rails 27 guide the shaping rounding slide blocks of the plurality of rounding assemblies 23 to slide along the radial direction of the shaping seat.

The outer side wall of the shaping center mold core 21 is provided with a positioning block 29, the positioning block 29 is provided with a vertical stator positioning convex tip 290, when the pre-bent straight stator core is sleeved on the shaping center mold core, the stator positioning convex tip is inserted into a gap 52 on the iron core circle of the straight stator core, and the straight stator core can not rotate any more, so that the positioning of the straight stator core is realized.

And a limiting block 26 is arranged on the outer side wall of the shaping outer guide seat 24.

The positioning yielding groove 211 is in a vertical strip shape, functions of yielding and guiding are achieved, the positioning yielding groove guides the flattening thimble and the flattening sleeve to slide up and down, and the yielding function is achieved for pressing the flat-top needle to the inner circle of the straight strip stator core.

The rounding assembly 23 comprises a shaping oil cylinder 230, a shaping rounding slide block 231, an adjusting slide block 233, an adjusting fixed block 236, a first adjusting bolt 235 and a second adjusting bolt 234, wherein the rear end of the adjusting slide block 233 is connected to an oil cylinder joint 232 of the shaping oil cylinder 230 in an up-and-down sliding manner, the front end of the adjusting slide block 233 is connected with the first end of the shaping rounding slide block 231 in an up-and-down sliding manner through a transmission guide inclined lug 237 and a transmission guide inclined groove 238, the transmission guide inclined lug 237 is embedded in the transmission guide inclined groove 238 and is in transmission fit with the inclined surface of the transmission guide inclined groove 238, the shaping rounding slide block 231 is horizontally arranged on the shaping guide rail 27 in a sliding manner, the second end of the shaping rounding slide block 231 is provided with a rounding pressing surface 2317, the adjusting fixed block 236 is arranged on the shaping rounding slide block 231 and is positioned above the adjusting slide block 233, the first adjusting bolt 235 penetrates through the adjusting fixed block 236 downwards and is in threaded connection with a threaded, the second adjusting bolt 234 passes downward through the adjusting fixing block 236 and abuts against the adjusting slider 233.

The transmission guide inclined projection 237 and the transmission guide inclined groove 238 are both long, and the transmission guide inclined projection 237 and the transmission guide inclined groove 238 both extend obliquely in the height direction. The transmission guide chute 238 not only guides the transmission guide inclined projection 237 to ascend and descend, but also is in transmission fit with the inclined surface of the transmission guide inclined projection 237, and the ascending and descending sliding of the adjusting slide block 233 can drive the shaping rounding slide block 231 to horizontally slide back and forth, so that the stamping stroke of the shaping rounding slide block can be adjusted. When the transmission guide inclined lug rises along with the adjusting slider, the transmission guide inclined lug drives the transmission guide chute and the shaping rounding slider to slide backwards, and when the transmission guide inclined lug descends along with the adjusting slider, the transmission guide inclined lug drives the transmission guide chute and the shaping rounding slider to slide forwards, so that the punching stroke of the shaping rounding slider is finely adjusted.

The front end of the adjusting slider is provided with the transmission guide chute 238, the first end of the shaping rounding slider is provided with the transmission guide inclined lug 237, of course, the transmission guide inclined lug 237 can be designed at the front end of the adjusting slider, and the transmission guide chute 238 is designed at the first end of the shaping rounding slider, thus achieving the purpose of the invention.

The front and rear sides of the transmission guide inclined protrusion 237 are respectively provided with a first inclined surface 2311 and a second inclined surface 2312 which are parallel to each other, the front and rear sides of the transmission guide inclined groove 238 are respectively provided with a third inclined surface 2313 and a fourth inclined surface 2314 which are parallel to each other, the first inclined surface 2311 abuts against the third inclined surface 2313, and the second inclined surface 2312 abuts against the fourth inclined surface 2314. When the transmission guide inclined convex block ascends along with the adjusting slide block, the second inclined surface of the transmission guide inclined convex block pushes the fourth inclined surface of the guide chute backwards so as to enable the guide chute and the shaping rounding slide block to slide backwards, and when the transmission guide inclined convex block descends along with the adjusting slide block, the first inclined surface of the transmission guide inclined convex block pushes the third inclined surface of the transmission guide chute forwards so as to enable the transmission guide chute and the shaping rounding slide block to slide forwards, so that the punching stroke of the fine-tuning shaping rounding slide block is realized.

The first end of the shaping rounding slider 231 is provided with a first T-shaped protrusion 2315, the front end of the adjusting slider is provided with a first T-shaped groove 2316, the first T-shaped protrusion 2315 extends into the first T-shaped groove 2316 and is in up-and-down sliding connection with the first T-shaped groove 2316, the two side walls of the first T-shaped protrusion 2315 are provided with the transmission guide inclined grooves 238, and the two side walls of the first T-shaped groove 2316 are provided with the transmission guide inclined protrusions 237. Due to the design, the shaping rounding slide block 231 and the adjusting slide block can slide up and down relatively while being connected, and the lifting slide of the adjusting slide block can drive the shaping rounding slide block to horizontally slide back and forth due to the inclined surface transmission fit of the transmission guide inclined groove 238 and the transmission guide inclined convex block 237, so that the stamping stroke of the shaping rounding slide block is adjusted.

The first inclined surface 2311 and the second inclined surface 2312 are respectively arranged on the front side wall and the rear side wall of the transmission guide inclined lug 237, and the third inclined surface 2313 and the fourth inclined surface 2314 are respectively arranged on the front side wall and the rear side wall of the transmission guide inclined groove 238.

The end of the oil cylinder joint 232 is provided with a second T-shaped bump 2310, the rear end of the adjusting slider is provided with a second T-shaped groove 239, and the second T-shaped bump 2310 extends into the first T-shaped groove 239 and is connected with the second T-shaped groove 239 in a vertically sliding mode. Due to the design, the oil cylinder joint 232 and the adjusting slide block can relatively slide up and down while the connection between the oil cylinder joint and the adjusting slide block is realized.

The first inclined surface 2311 has an acute angle a of 0.6 ° to 0.9 ° with respect to the vertical plane D, and the acute angle a is preferably 0.86 °.

Roof pressure plastic mechanism 4 includes jacking cylinder 411, support frame 45, jacking guide holder 41 and thimble seat 43, the bottom of frame 1 is located to support frame 45, jacking cylinder 411 is located on support frame 45, thimble seat 43 is located jacking cylinder 411's top, thimble seat 43 slides from top to bottom and sets up the bottom at the plastic seat, jacking cylinder 411 drive thimble seat 43 slides, the annular interval is equipped with many thimbles 44 that flatten on thimble seat 43, many the topmost level of thimble 44 that flatten is the same, the position of the thimble that flattens corresponds with the position of thimble abdicating hole 28.

The jacking guide seat 41 is arranged on the support frame 45 in a vertically sliding mode, and the jacking needle seat 43 is arranged on the jacking guide seat in a sitting mode. The jacking device is characterized in that a guide sleeve 46 is arranged on the jacking guide seat, the guide sleeve 46 is arranged on the support frame 45 in a vertically sliding mode, a jacking block 417 is arranged on a cylinder rod of the jacking cylinder, and the jacking block 417 abuts against the bottom surface of the jacking guide seat. According to the design, the cylinder rod of the jacking cylinder is not connected with the jacking guide seat, the thimble seat is not connected with the jacking guide seat, and the jacking guide seat only plays a role of jacking the thimble seat.

The bottom of plastic seat 20 is equipped with thimble lift guide bar 410, it is equipped with thimble lift guiding hole 49 to correspond thimble lift guide bar 410 on thimble seat 43, thimble seat 43 overlaps through thimble lift guiding hole 49 and establishes on thimble lift guide bar 410, the cover is equipped with reset spring 47 on the thimble lift guide bar 410, reset spring 47's upper end is supported and is leaned on the bottom of plastic seat, reset spring 47's lower extreme is supported and is leaned on thimble seat 43, thimble lift guide bar 410 is provided with anticreep piece 48 in the below of thimble seat 43. When the cylinder pole shrink of jacking cylinder descends, the jacking cylinder no longer roof pressure thimble seat, reset spring resumes deformation, reset spring down pushes away the thimble seat, the thimble seat down slides along thimble lift guide bar under reset spring's effect, the thimble that flattens descends thereupon to the location of breaking away from plastic center mold core groove of stepping down, when the thimble seat descends to the anticreep piece on, the anticreep piece blocks the thimble seat and continues to descend, therefore the thimble seat keeps on thimble lift guide bar. When the cylinder rod of the jacking cylinder extends upwards, the jacking cylinder jacks the thimble seat, the reset spring is compressed and deformed by the thimble seat, the thimble seat slides upwards along the thimble lifting guide rod, the flattening thimble rises along with the thimble, the flattening thimble upwards penetrates through the thimble abdicating hole, and the flattening thimble upwards inserts into the positioning abdicating groove of the shaping center mold core.

Push down plastic mechanism 3 and include fixing base 38, push down cylinder 31, push down lift seat 32 and flatten sleeve 33, push down cylinder 31 locates on fixing base 38, push down lift seat 32 locates on push down cylinder rod 36 of push down cylinder 31 to be located the below of push down cylinder 31, it is equipped with down to push down the uide bushing 37 to correspond on the fixing base 38 to push down cylinder rod 36, it is the tube-shape to flatten sleeve 33, it is provided with a plurality of enhancement direction sand grips 35 to annular interval on the inside wall of sleeve 33 to flatten, the position of strengthening the direction sand grip 35 aligns with the position of location groove 211 of stepping down, the bottom of sleeve 33 that flattens is equipped with down clamping ring 34. When the flattening sleeve is lifted, the reinforcing guide convex strips are inserted into the positioning abdicating grooves and matched with the positioning abdicating grooves in a lifting and guiding manner, and the reinforcing guide convex strips and the positioning abdicating grooves guide the flattening sleeve to lift and slide. Therefore, the reinforcing guide raised lines not only play a role in reinforcing the strength of the flattening sleeve, but also play a role in guiding the flattening sleeve to lift.

The bottom end face of the lower pressing ring 34 is horizontal plane-shaped, so that the bottom end face of the flattening sleeve can press all positions on the same horizontal plane of the top of the straight bar stator core to be horizontal and level.

The lateral wall of the bottom end of the sleeve 33 that flattens is the necking down form to the telescopic bottom that flattens stretches into in the straight bar stator core, and the sleeve that flattens can not take place to interfere with straight bar stator core.

And a detection photoelectric switch 10 for detecting whether the straight bar stator core 5 exists on the shaping seat 20 is arranged on the frame 1. When the detection photoelectric switch detects that the straight stator core is arranged on the shaping center die core, the detection photoelectric switch can send a material signal to a controller of the whole machine. When the detection photoelectric switch detects that the straight stator core is arranged on the shaping center die core, the detection photoelectric switch sends a 'no material' signal to a controller of the whole machine, and the controller controls the next action.

The working principle of the invention is as follows:

before the straight stator core 5 is delivered to the present invention for circular shaping, the straight stator core 5 is already bent into an annular object with an opening in advance, and then a worker or a robot fits the annular straight stator core 5 on the shaping center core 21 of the shaping base 20 so that the straight stator core 5 surrounds the shaping center core 21.

Then, two rounding assemblies 23 opposite to the opening of the straight bar stator core 5 are started simultaneously, two shaping oil cylinders 230 drive respective shaping rounding sliders 231 to slide towards the shaping center core 21 simultaneously, the rounding surfaces 2317 of the two shaping rounding sliders 231 simultaneously round the outer side wall of the straight bar stator core 5 on the shaping center core 21, then the rounding assemblies 23 on one side of the opening of the straight bar stator core 5 are started one by one along the clockwise direction, meanwhile, the rounding assemblies 23 on the other side of the opening of the straight bar stator core 5 are also started one by one along the counterclockwise direction, and the two rounding assemblies 23 opposite to the two sides of the opening of the straight bar stator core 5 are started synchronously, the rounding surfaces 2317 of the shaping rounding sliders 231 press the outer side wall of the straight bar stator core 5 one by one until the two rounding assemblies 23 opposite to the opening of the straight bar stator core 5 are finally started, and inwards push down the both ends of straight bar stator core 5 to make the both ends of straight bar stator core 5 support and lean on together, the opening of straight bar stator core 5 is closed, so far, the lateral wall of straight bar stator core 5 has all been pushed down to the circle slider is pressed in the plastic of all pressure circle plastic subassemblies 23, and the inside wall of the iron core inner circle of straight bar stator core 5 pastes on plastic center mold core 21 lateral wall.

Then the pressing and shaping mechanism 3 is started, the pressing cylinder 31 drives the pressing sleeve 33 to descend, the pressing sleeve 33 gradually descends and is sleeved on the outer side wall of the shaping center mold core 21 until the bottom end face of the pressing sleeve 33 abuts against the upper end face of the inner circle 51 of the iron core, then the pressing and shaping mechanism is started, the jacking cylinder 411 pushes the jacking guide seat 41 to slide upwards, the jacking guide seat 41 slides upwards along the support frame, the jacking guide seat 41 drives the jacking needle seat 43 to ascend, the jacking needle seat 43 slides upwards under the guidance of the jacking needle lifting guide rod 410, a plurality of pressing thimbles 44 simultaneously penetrate upwards through a plurality of thimble abdicating holes 28 of the shaping seat and are inserted into a plurality of positioning abdicating grooves 211 on the side wall of the shaping center mold core 21, a plurality of pressing thimbles 44 simultaneously press upwards the lower end face of the inner circle 51 of the straight stator iron core 5, and the plurality of pressing thimbles 44, the flattening thimbles 44 and the flattening sleeves 33 respectively press the lower end face and the upper end face of the iron core inner circle 51 of the straight stator iron core 5, so that the vertical flattening is realized. If dislocation about the top of bar stator core 5 or the partial position of bottom appears, slope, the condition of the height unevenness, bar stator core 5's top same horizontal plane everywhere or bottom same horizontal plane everywhere not at same horizontal plane (not parallel and level) promptly, the thimble 44 that flattens of corresponding position just can press the position of the last not parallel and level of bar stator core 5 to the parallel and level to make the same horizontal plane in top of bar stator core 5 everywhere keep the parallel and level everywhere of parallel and level in bottom.

Then, the two ends of the annular straight stator core 5 are welded by an external welding robot, the roundness and the verticality of the welded annular stator core 6 meet the requirements, and the product quality of the straight stator core is excellent. After the stator core 6 is welded, the pressing cylinder 31 drives the pressing sleeve 33 to ascend, all the shaping pressing circular sliding blocks 231 return to the original positions, then the jacking cylinder 411 pushes the jacking guide seat 41 to slide upwards again, the jacking guide seat 41 drives the thimble seat 43 to slide upwards, the plurality of pressing thimbles 44 continue to lift upwards, the plurality of pressing thimbles 44 eject the welded stator core 6 out of a shaping center mold core, and then a worker or a manipulator grabs and takes away the welded stator core 6.

In addition, when a worker finds that the roundness of the welded stator core 6 is not high due to the fact that the punching stroke of a certain shaping and rounding slide block 231 is too deep, the worker can rotate the first adjusting bolt 235 in the forward direction and rotate the second adjusting bolt 234 in the reverse direction, the first adjusting bolt 235 drives the adjusting slide block 233 to slide upwards, the second adjusting bolt 234 also slides upwards, the adjusting slide block 233 drives the shaping and rounding slide block 231 to move outwards of the shaping seat for a small distance, then, the worker rotates the second adjusting bolt 234 in the forward direction, the second adjusting bolt 234 moves downwards and presses the adjusting slide block 233, so that the adjusting slide block 233 does not move upwards and downwards, the shaping and rounding slide block 231 does not slide any more, the cylindrical surface shaping and rounding slide block 231 is positioned, and at the moment, the rounding pressing surface 2317 of the shaping and rounding slide block 231 is positioned on the same circular pressing surface 2317 of other shaping and rounding slide blocks 231, thereby ensuring the roundness of the welded straight stator core.

In addition, when a worker finds that the roundness of the welded stator core 6 is not high due to the fact that the stamping stroke of one shaping rounding slider 231 is too shallow, the worker can rotate the first adjusting bolt 235 in the reverse direction and rotate the second adjusting bolt 234 in the forward direction, the first adjusting bolt 235 drives the adjusting slider 233 to slide downwards, the adjusting slider 233 drives the shaping rounding slider 231 to move a small distance into the shaping seat, the second adjusting bolt 234 also moves downwards and presses the adjusting slider 233, the adjusting slider 233 does not move upwards or downwards, the shaping rounding slider 231 also stops sliding into the shaping seat, and at the moment, the rounding pressing surface 2317 of the shaping rounding slider 231 and the rounding pressing surfaces 2317 of the other shaping rounding sliders 231 are located on the same cylindrical surface, so that the roundness of the welded straight bar stator core is guaranteed. Therefore, the present invention can ensure the roundness of the welded stator core 5 by finely adjusting the press stroke of the rounding slider 231.

Claims (10)

1. A rounding and shaping die for a straight stator core comprises a shaping seat, a jacking shaping mechanism, a pressing shaping mechanism and a rounding mechanism, and is characterized in that,

the shaping seat is used for positioning and forming the straight stator core;

the downward pressing and shaping mechanism is used for pressing the upper end face of the inner circle of the iron core of the straight stator iron core downward;

the jacking shaping mechanism is used for jacking the lower end face of the inner circle of the iron core of the straight stator iron core upwards;

the rounding mechanism comprises a plurality of rounding components which are arranged on the shaping seat at annular intervals and used for pressing the straight stator core on the shaping seat into a circular ring shape, and two ends of the straight stator core are abutted together.

2. The rounding forming die for the straight stator core according to claim 1, wherein the shaping seat is provided with a shaping center die core and a shaping outer guide seat, the shaping outer guide seat is annular, the shaping center die core is cylindrical, the shaping center die core and the shaping outer guide seat are concentrically arranged, the shaping outer guide seat is positioned outside the shaping center die core, the outer side wall of the shaping center die core is provided with a plurality of positioning yielding grooves at annular intervals, and the shaping seat is provided with a plurality of thimble yielding holes at annular intervals corresponding to the plurality of positioning yielding grooves.

3. The round shaping mold for the straight stator core as claimed in claim 2, wherein a positioning block is disposed on an outer sidewall of the shaping center core, and a vertical stator positioning protrusion is disposed on the positioning block.

4. The rounding die for the straight stator core according to claim 1, wherein the rounding component comprises a shaping cylinder, a shaping rounding slider, an adjusting fixing block, a first adjusting bolt and a second adjusting bolt, the rear end of the adjusting slider is connected with a cylinder connector of the shaping cylinder in an up-and-down sliding manner, the front end of the adjusting slider is connected with the first end of the shaping rounding slider in an up-and-down sliding manner through a transmission guide inclined projection and a transmission guide inclined groove, the transmission guide inclined projection is embedded into the transmission guide inclined groove and is in transmission fit with the inclined surface of the transmission guide inclined groove, the second end of the shaping rounding slider is provided with a rounding surface, the adjusting fixing block is arranged on the shaping rounding slider or the shaping cylinder and is positioned above the adjusting slider, and the first adjusting bolt passes through the adjusting fixing block downwards and is in threaded connection with the adjusting slider, and the second adjusting bolt downwards penetrates through the adjusting fixed block and abuts against the adjusting slide block.

5. The round shaping mold for straight stator cores as claimed in claim 4, wherein the front end of the adjusting slider is provided with the transmission guide chute, and the first end of the shaping rounding slider is provided with the transmission guide chute projection.

6. The round forming and shaping mold for the straight stator core as claimed in claim 5, wherein a first end of the round shaping and pressing slider is provided with a first T-shaped protrusion, a front end of the adjusting slider is provided with a first T-shaped groove, the first T-shaped protrusion extends into the first T-shaped groove and is slidably connected with the first T-shaped groove up and down, the transmission guide inclined grooves are provided on left and right side walls of the first T-shaped protrusion, and the transmission guide inclined protrusions are provided on left and right side walls of the first T-shaped groove.

7. The round shaping die for the straight stator core according to claim 2, wherein the jacking and shaping mechanism comprises a jacking cylinder, a support frame and a jacking needle seat, the support frame is arranged at the bottom of the frame, the jacking cylinder is arranged on the support frame, the jacking needle seat is arranged above the jacking cylinder, the jacking needle seat is arranged at the bottom of the shaping seat in a vertically sliding manner, the jacking cylinder drives the jacking needle seat to slide, a plurality of flattening thimbles are arranged on the jacking needle seat at annular intervals, the horizontal heights of the tops of the flattening thimbles are the same, and the positions of the flattening thimbles correspond to the positions of the thimble abdicating holes.

8. The round forming die for the straight stator core as claimed in claim 7, wherein the bottom of the shaping base is provided with a thimble lifting guide rod, the thimble base is provided with a thimble lifting guide hole corresponding to the thimble lifting guide rod, the thimble base is sleeved on the thimble lifting guide rod through the thimble lifting guide hole, the thimble lifting guide rod is sleeved with a return spring, the upper end of the return spring abuts against the bottom of the shaping base, the lower end of the return spring abuts against the thimble base, and the thimble lifting guide rod is provided with an anti-drop block below the thimble base.

9. The round shaping mold for straight stator cores of claim 1, wherein the pressing and shaping mechanism comprises a pressing cylinder, a pressing and lifting seat and a flattening sleeve, the pressing and lifting seat is disposed on a cylinder rod of the pressing cylinder and below the pressing cylinder, and the flattening sleeve is cylindrical.

10. The rounding and shaping mold for the straight stator core according to claim 9, wherein a plurality of reinforcing guide ribs are arranged on the inner side wall of the flattening sleeve at annular intervals, and the positions of the reinforcing guide ribs are aligned with the positions of the positioning abdicating grooves.

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