A jig tightening structure for motor iron core

Abstract

The present invention discloses a jig tightening structure for a motor core, relating to the technical field of motors, comprising a jig lower pressure plate, the jig lower pressure plate being located on the upper surface of which a tightening assembly is installed, for tightening and pressurizing the stacked punching sheets; the tightening assembly comprises a lower pad, a vertical positioning flange, a jig outer tire, a tire unloading top block, a top screw, a locking pull rod, a jig upper pressure plate, a locking nut 1, a heterosexual nut, an extended pull rod, a pressurized hydraulic pressure plate, a locking nut 2, a disc spring tooling, a disc spring pressure plate, and supporting equal height columns; the present invention provides a jig lower pressure plate and a jig outer tire, firstly, the jig lower pressure plate and the jig outer tire are connected together to play a positioning role for the stacked punching sheets, and then the jig outer tire can also ensure that the outer diameter of the product is neat, so that the stacked product is not easily deformed, and the outer diameter size of the jig can be conveniently controlled by cooperating with the top screw.

Description

Technical Field

[0001] The present invention relates to the technical field related to motors, and in particular to a jig tightening structure for a motor iron core. Background Art

[0002] The stator core is a crucial component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it forms the motor's complete magnetic circuit. In asynchronous motors, the magnetic flux in the stator core is alternating, resulting in core losses. Core losses are comprised of two components: hysteresis losses and eddy current losses.

[0003] At present, the existing jig tightening structure for motor cores mostly uses the inner diameter of the punching sheet for positioning. For products with larger dimensions, the inner diameter positioning will cause the laminated product to deform, thereby greatly reducing the practicality of the jig tightening structure. Then, the existing jig tightening structure for motor cores lacks timely dust removal on the surface of the laminated punching sheets, which easily leads to impurities mixing into the laminated product, causing the laminated product to be damaged by impurities on its surface when pressurized. Therefore, the user experience of the jig tightening structure for motor cores is greatly reduced. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a jig tightening structure for a motor iron core.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a jig tightening structure for a motor core, comprising:

[0007] A lower pressure plate of the mold, wherein a tightening assembly is installed on the upper surface of the lower pressure plate of the mold for tightening and pressurizing the stacked punching sheets;

[0008] The jacking assembly includes a lower pad, a vertical positioning flange, a tire mold, a tire unloading block, a jack screw, a locking rod, an upper pressure plate of the tire mold, a locking nut 1, a special nut, an extended pull rod, a pressurized hydraulic pressure plate, a locking nut 2, a disc spring tool, a disc spring pressure plate and a supporting equal height column. The lower pads are respectively installed at the periphery of the upper surface of the lower pressure plate of the tire mold. The upper surface of each of the lower pads is provided with two vertical positioning flanges. The outer side of each lower pad and the upper surface of the lower pressure plate of the tire mold are provided with two tire molds. The outer wall of the lower end of each tire mold is provided with a tire unloading block installed on the upper surface of the lower pressure plate of the tire mold. The end of each tire unloading block away from the tire mold is threadedly connected with a jack screw.

[0009] A dust-proof component is installed on the inner surface of the lower pressure plate of the tire mold, and the dust-proof component includes a motor base plate, a reversing motor, a main drive carrier plate, a dust removal ring pipe, an upper sealing ring plate, an iron ring, a magnetic rod, a main suction pipe, an auxiliary suction pipe, a cleaning pipe, an electric high-pressure air pump, a tightening ring, a dust collection box and a filter. The motor base plate is installed on the inner wall of the lower pressure plate of the tire mold.

[0010] As a preferred technical solution of the present invention, locking rods are installed on the upper surface of the lower pressure plate of the mold and on the inner and outer sides of the lower pad, and the upper ends of the locking rods are sleeved with the upper pressure plate of the mold.

[0011] As a preferred technical solution of the present invention, the surface of the upper end of each locking rod is threadedly connected to a locking nut 1, and the surface above each locking nut 1 and located on the locking rod is threadedly connected to a heterosexual nut.

[0012] As a preferred technical solution of the present invention, the inner wall of the upper end of each of the heterosexual nut is threadedly connected to an extension rod, the surface of the upper end of the extension rod is sleeved with a pressurized hydraulic pressure plate, and the surface of the upper end of each of the extension rods is threadedly connected to a locking nut 2.

[0013] As a preferred technical solution of the present invention, a plurality of disc spring fixtures are installed on the lower surface of the upper pressure plate of the mold, and a disc spring pressure plate is installed on the bottom of each of the disc spring fixtures.

[0014] As a preferred technical solution of the present invention, a plurality of supporting columns of equal height are fixedly connected to the lower surface of the pressurized hydraulic pressure plate.

[0015] As a preferred technical solution of the present invention, a reversing motor is installed on the upper surface of the motor base plate, a main drive carrier plate is fixedly installed on the output end of the upper side of the reversing motor, and both ends of the main drive carrier plate are fixedly connected to a dust removal ring pipe.

[0016] As a preferred technical solution of the present invention, the inner wall of the upper end of the dust removal ring tube is threadedly connected to an upper sealing ring plate, and the outer surface of the upper end of the dust removal ring tube is fixedly connected to multiple iron rings, and a magnetic rod is inserted into the inner cavity of each iron ring.

[0017] As a preferred technical solution of the present invention, a main suction pipe is installed in the middle position of the upper surface of the main drive carrier plate, and the outer surface of the main suction pipe is connected to the inner wall of the upper end of the dust removal ring pipe through multiple auxiliary suction pipes, and each of the auxiliary suction pipes is connected to the inner wall of the lower end of the dust removal ring pipe through a cleaning pipe.

[0018] As a preferred technical solution of the present invention, the upper end of the main suction pipe is connected to an electric high-pressure vacuum pump through a flange, the outer wall of the exhaust port at the upper end of the electric high-pressure vacuum pump is fixedly connected to a tightening ring, and the surface of the upper end of the electric high-pressure vacuum pump is threadedly connected to a dust box, and the inner wall of the upper end of the dust box is threadedly connected to a filter.

[0019] The beneficial effects of the present invention are:

[0020] 1. This type of motor core uses a jig to tighten the structure. Through the jig lower pressure plate and jig outer tire, the jig lower pressure plate and the jig outer tire are connected together to position the laminated punching sheets. Then the jig outer tire can also ensure that the outer diameter of the product is neat, so that the laminated product is not easily deformed, and the outer diameter of the jig can be easily controlled by cooperating with the top screw.

[0021] 2. This type of motor core uses a jig to tighten the structure. Through the vertical positioning flange, the insert at the bottom of the vertical positioning flange can be easily replaced and can be replaced according to the actual position. Then the standing column above the vertical positioning flange can play a role in vertical positioning and can reduce the friction during tire unloading. At the same time, it reduces the contact area and improves the speed of jig loading and unloading.

[0022] 3. This type of motor core is tightened with a jig. By setting a lower pad, the lower pad can first ensure the horizontal accuracy of the jig during stacking, thereby improving the positioning quality of the jig. Then, it can also facilitate the separation of the product from the jig's lower pressure plate, thereby improving the stacking quality of the jig.

[0023] 4. This type of motor core is tightened with a jig. Through the provision of a special-sex nut and a pressurized hydraulic platen, the special-sex nut can first save space and can make the pull rod into a split structure. Then, the pressurized hydraulic platen can be suitable for larger pressurized products and has uniform force, which greatly improves the processing quality of the laminated products.

[0024] 5. This type of motor core uses a jig to tighten the structure. Through the disc spring tooling and the jig upper pressure plate, the disc spring tooling can firstly promote the disc spring pressure plate to stabilize the pressure on the jig, effectively preventing the laminated product from being damaged.

[0025] 6. The motor core is tightened with a jig. Through the dust-proof component set, the electric high-pressure vacuum pump is first controlled to start, which can drive the dust removal ring pipe to extract air. The dust removal ring pipe can extract dust in the air in multiple directions, and transmit the sucked dust to the inside of the main suction pipe through the auxiliary suction pipe and the cleaning pipe. The main suction pipe then transmits the dust to the inside of the dust collecting box. At this time, the extracted dust can be effectively filtered and collected through the filter. At this time, the dust-proof effect of the laminated jig is first improved. Then, the reversing motor is controlled to start, which can drive the main drive carrier plate and the dust removal ring pipe to rotate at the same time. The rotation of the dust removal ring pipe can perform all-round dust removal on the jig, which further improves the dust-proof effect of the laminated jig. At the same time, it greatly improves the user experience of the jig tightening structure. Finally, the magnetic rod can screen iron chips in the extracted dust, which can effectively prevent the through holes on the dust removal ring pipe from being blocked, thereby further improving the practicality of the jig tightening structure.

[0026] 7. This type of motor core uses a jig to tighten the structure. Through the provided cleaning tube and upper sealing plate, the cleaning tube can first conveniently extract the dust at the bottom of the dust removal ring tube, which can effectively prevent dust from accumulating inside the dust removal ring tube, thereby increasing the service life of the dust-proof component. Then, the dust removal ring tube can be quickly opened by controlling the reversal of the upper sealing plate, which can facilitate users to quickly clean the adhesions in the dust removal ring tube, thereby enabling the dust-proof component to have the function of continuous use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a structural schematic diagram of a jig tightening structure for a motor core according to the present invention;

[0029] Figure 2 It is a structural schematic diagram of a jig tightening structure for a motor core according to the present invention from a right side perspective;

[0030] Figure 3 This is a schematic structural diagram of a jig tightening structure for a motor core according to the present invention, viewed from below;

[0031] Figure 4 This is a front cross-sectional view of a jig tightening structure for a motor core according to the present invention;

[0032] Figure 5 The invention is a kind of motor core clamping structure Figure 5 Stereoscopic image of

[0033] Figure 6This is a side sectional view of a jig tightening structure for a motor core according to the present invention;

[0034] Figure 7 This is an isolated view of the structure of a tightening assembly of a jig tightening structure for a motor core according to the present invention;

[0035] Figure 8 The invention is a kind of motor core clamping structure Figure 5 Enlarged view of point A in the middle;

[0036] Figure 9 The invention is a kind of motor core clamping structure Figure 5 Enlarged view of point B in the middle;

[0037] Figure 10 The invention is a kind of motor core clamping structure Figure 6 Enlarged view of point C in the middle;

[0038] Figure 11 The invention is a kind of motor core clamping structure Figure 7 Enlarged view of point D in the middle.

[0039] Figure: 1. Tire lower pressure plate; 2. Clamping assembly; 201. Lower pad; 202. Vertical positioning flange; 203. Tire outer cover; 204. Tire removal block; 205. Jackscrew; 206. Locking rod; 207. Tire upper pressure plate; 208. Locking nut 1; 209. Heterogeneous nut; 210. Extension rod; 211. Hydraulic pressure plate; 212. Locking nut 2; 213. Disc spring fixture; 214 , disc spring pressure plate; 215, supporting equal height columns; 3, dustproof components; 301, motor base plate; 302, reversing motor; 303, main drive carrier plate; 304, dust removal ring pipe; 305, upper sealing plate; 306, iron ring; 307, magnetic rod; 308, main extraction pipe; 309, auxiliary extraction pipe; 310, cleaning pipe; 311, electric high-pressure vacuum pump; 312, tightening ring; 313, dust collection box; 314, filter. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] Example: Figures 1-11As shown, the present invention is a jig tightening structure for a motor core, comprising: a jig lower pressure plate 1, a tightening assembly 2 is installed on the upper surface of the jig lower pressure plate 1 for tightening and pressurizing the stacked punching sheets; the tightening assembly 2 comprises a lower pad 201, a vertical positioning flange 202, a jig outer tire 203, a tire unloading top block 204, a top screw 205, a locking rod 206, a jig upper pressure plate 207, a locking nut 1 208, a heterosexual nut 209, an extension rod 210, a pressurized hydraulic pressure plate 211, a locking nut 212, a disc spring tooling 213, a disc spring pressure plate 214, and a supporting equal height column 215. The lower pads 201 are respectively installed at the periphery of the upper surface of the jig lower pressure plate 1, and the upper surface of each lower pad 201 is provided with two vertical positioning flanges 202. Each lower pad 20 1 and are located on the upper surface of the tire lower pressure plate 1. Two tire outer tires 203 are installed on the outer side of the tire 1 and are located on the upper surface of the tire lower pressure plate 1. The outer wall of the lower end of each tire outer tire 203 is provided with a tire unloading top block 204 installed on the upper surface of the tire lower pressure plate 1. Each tire unloading top block 204 is threadedly connected to a top screw 205 at one end away from the tire outer tire 203; a dustproof component 3 is installed on the inner surface of the tire lower pressure plate 1. The dustproof component 3 includes a motor base plate 301, a reversing motor 302, a main drive carrier plate 303, a dust removal ring pipe 304, an upper sealing ring plate 305, an iron ring 306, a magnetic rod 307, a main extraction pipe 308, an auxiliary extraction pipe 309, a cleaning pipe 310, an electric high-pressure air pump 311, a tightening ring 312, a dust collecting box 313 and a filter screen 314. The motor base plate 301 is installed on the inner wall of the tire lower pressure plate 1.

[0042] The upper surface of the mold lower pressure plate 1 and the inner and outer sides of the lower pad 201 are both installed with locking rods 206, and the surfaces of the upper ends of the locking rods 206 are sleeved with the mold upper pressure plate 207; the surface of the upper end of each locking rod 206 is threadedly connected to a locking nut 208, and the surface above each locking nut 208 and located on the locking rod 206 is threadedly connected to a heterosexual nut 209; the inner wall of the upper end of each heterosexual nut 209 is threadedly connected to an extension rod 210, and the surface of the upper end of the extension rod 210 is sleeved with a pressurized hydraulic pressure plate 211, and the uppermost surface of each extension rod 210 is threadedly connected to a locking nut 212; the lower surface of the mold upper pressure plate 207 is installed with multiple disc spring tooling 213, and the bottom of the disc spring tooling 213 is installed with a disc spring pressure plate 214; the lower surface of the pressurized hydraulic pressure plate 211 is fixedly connected to multiple supporting equal height columns 215.

[0043] Among them, by setting the jig lower pressure plate 1 and the jig outer tire 203, first the jig lower pressure plate 1 and the jig outer tire 203 are connected together to play a positioning role for the stacked punching sheets, and then the jig outer tire 203 can also ensure that the outer diameter of the product is neat, so that the stacked product is not easy to deform, and the outer diameter size of the jig can be conveniently controlled by cooperating with the top screw 205.

[0044] Among them, by setting up the vertical positioning flange 202, first, the insert at the bottom of the vertical positioning flange 202 can be easily replaced and can be replaced according to the actual position, and then the standing column above the vertical positioning flange 202 can play the role of vertical positioning, and can reduce the friction during tire unloading, and at the same time, reduce the contact area and improve the speed of tire loading and unloading.

[0045] Among them, by setting the lower pad 201, the lower pad 201 can first ensure the horizontal accuracy when the mold is stacked, improve the positioning quality of the mold, and then it can also facilitate the separation of the product from the mold lower pressure plate 1, thereby improving the stacking quality of the mold.

[0046] Among them, by setting the heterosexual nut 209 and the pressurized hydraulic pressure plate 211, firstly, the heterosexual nut 209 can save space and can make the pull rod into a split structure, and then the pressurized hydraulic pressure plate 211 can be suitable for larger pressurized products and has uniform force, which greatly improves the processing quality of the laminated products.

[0047] Among them, through the arrangement of the disc spring tooling 213 and the upper pressure plate 207 of the mold, first the disc spring tooling 213 can cause the disc spring pressure plate 214 to stabilize the pressure on the mold, effectively preventing the laminated product from being damaged, and then the upper pressure plate 207 of the mold can evenly transmit the pressure to the pressure plate below.

[0048] Among them, by setting up the supporting contour columns 215, first of all, the supporting contour columns 215 can make the distance between the upper pressure plate 207 of the tire mold and the pressurized hydraulic pressure plate 211 equal, thereby making the pressure on the upper pressure plate 207 of the tire mold relatively balanced, thereby improving the service life of the upper pressure plate 207 of the tire mold.

[0049] A reversing motor 302 is mounted on the upper surface of the motor base plate 301, and a main drive carrier plate 303 is fixedly mounted on the output end of the reversing motor 302. Both ends of the main drive carrier plate 303 are fixedly connected to a dust removal ring pipe 304; the inner wall of the upper end of the dust removal ring pipe 304 is threadedly connected to an upper sealing plate 305, and the outer surface of the upper end of the dust removal ring pipe 304 is fixedly connected to a plurality of iron rings 306, and the inner cavity of each iron ring 306 is plugged with a magnetic rod 307; a main pumping pipe 308 is mounted in the middle position of the upper surface of the main drive carrier plate 303, and the main pumping pipe 308 is fixedly connected to the upper end of the dust removal ring pipe 304. 8 The outer surface is connected to the inner wall of the upper end of the dust removal ring tube 304 through multiple auxiliary suction pipes 309, and each auxiliary suction pipe 309 is connected to the inner wall of the lower end of the dust removal ring tube 304 through a cleaning pipe 310; the upper end of the main suction pipe 308 is connected to the electric high-pressure air pump 311 through a flange, and the outer wall of the exhaust port of the upper end of the electric high-pressure air pump 311 is fixedly connected to the tightening ring 312, and the surface of the upper end of the electric high-pressure air pump 311 is threadedly connected to the dust collecting box 313, and the inner wall of the upper end of the dust collecting box 313 is threadedly connected to the filter screen 314.

[0050] Among them, by setting the dust-proof component 3, first controlling the electric high-pressure vacuum pump 311 to start can drive the dust removal ring pipe 304 to extract air, and the dust removal ring pipe 304 can extract the dust in the air in multiple directions, and transmit the sucked dust to the inside of the main vacuum pipe 308 through the auxiliary vacuum pipe 309 and the cleaning pipe 310, and the main vacuum pipe 308 then transmits the dust to the inside of the dust collecting box 313, at this time, the extracted dust can be effectively filtered and collected through the filter 314, at this time, the dust-proof effect of the laminated tire is first improved, and then controlling the reversing motor 302 to start can drive the main drive carrier plate 303 and The dust removal ring tube 304 rotates at the same time, and the rotation of the dust removal ring tube 304 can remove dust from the mold in all directions, which further improves the dust prevention effect of the laminated mold. At the same time, it greatly improves the use experience of the mold tightening structure. Finally, the magnetic rod 307 can screen iron filings from the extracted dust, which can effectively prevent the through holes on the dust removal ring tube 304 from being blocked. The magnetic rod 307 can be quickly disassembled by pulling it upwards, so that the user can quickly clean the iron filings on the surface of the magnetic rod 307, so that the dust prevention component 3 can be used continuously, which further improves the practicality of the mold tightening structure.

[0051] During operation, first, the mold products are respectively inserted into the outside of the vertical positioning flange 202, and are stacked on the top of the lower pad 201 in sequence. When the mold products are placed on the top of the lower pad 201, the control screw 205 is rotated forward to push the mold outer tire 203 to move inward. When the mold outer tire 203 is fully in contact with the outer diameter surface of the mold product, the mold product is limited and tightened. When the mold products are all stacked on the lower pad 201, the control lock nut 208 is rotated forward to adjust the position of the mold upper pressure plate 207 Positioning is performed, and then the positive rotation of the heterosexual nut 209 can cause the locking rod 206 and the extension rod 210 to approach each other. When the bottom of the supporting height column 215 is fully in contact with the upper surface of the upper pressure plate 207 of the mold, the secondary tightening of the mold is completed. Finally, the pressurized hydraulic pressure plate 211 is squeezed downward by the external hydraulic equipment. The downward squeezing of the pressurized hydraulic pressure plate 211 can control the disc spring tooling 213 and the disc spring pressure plate 214 to move downward at the same time. The downward movement of the disc spring pressure plate 214 can quickly pressurize the laminated mold;

[0052] Dust prevention of laminated tires: First, control the electric high-pressure vacuum pump 311 to start, which can drive the dust removal ring pipe 304 to extract air. The dust removal ring pipe 304 can extract dust from multiple directions of the air, and transmit the sucked dust to the inside of the main suction pipe 308 through the auxiliary suction pipe 309 and the cleaning pipe 310. The main suction pipe 308 then transmits the dust to the inside of the dust collecting box 313. At this time, the extracted dust can be effectively filtered and collected through the filter net 314. At this time, the dust prevention effect of the laminated tire is improved first. Then, control the reversing motor 302 to start, which can drive the main drive carrier plate 303 and the dust removal ring pipe 304 to rotate at the same time. The rotation of the dust removal ring pipe 304 can remove dust from the tire in all directions, which further improves the dust prevention effect of the laminated tire. At the same time, it greatly improves The user experience of the mold tightening structure is improved. Finally, the magnetic rod 307 can filter the iron filings in the extracted dust, which can effectively prevent the through holes on the dust removal ring tube 304 from being blocked. Pulling the magnetic rod 307 upwards can quickly complete its disassembly, thereby facilitating the user to quickly clean the iron filings on the surface of the magnetic rod 307, and then reversing the dust box 313 can cause it to be separated from the electric high-pressure air pump 311. At this time, the user can quickly clean the dust in the dust box 313, and then reversing the filter 314 can cause it to be separated from the dust box 313. At this time, it is convenient for the user to quickly clean and replace the filter 314. When the dust box 313 is installed on the electric high-pressure air pump 311 again, the dustproof component 3 can be used continuously.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A jig tightening structure for a motor core, characterized in that: include: A mold lower pressure plate (1), wherein a tightening assembly (2) is mounted on the upper surface of the mold lower pressure plate (1) for tightening and pressurizing the stacked punching sheets; The tightening assembly (2) includes a lower plate (201), a vertical positioning flange (202), a tire outer tire (203), a tire unloading block (204), a top screw (205), a locking rod (206), a tire upper pressure plate (207), a locking nut (208), a heterogeneous nut (209), an extension rod (210), a pressurized hydraulic pressure plate (211), a locking nut (212), a disc spring tool (213), a disc spring pressure plate (214) and a supporting equal height column (215). The lower plate (201) is respectively installed under the tire At the periphery of the upper surface of the pressure plate (1), the upper surface of each lower pad (201) is provided with two vertical positioning flanges (202), and two tire outer tires (203) are installed on the outer side of each lower pad (201) and located on the upper surface of the tire lower pressure plate (1), and the outer wall of the lower end of each tire outer tire (203) is provided with a tire unloading block (204) installed on the upper surface of the tire lower pressure plate (1), and each tire unloading block (204) is threadedly connected to a top screw (205) at one end away from the tire outer tire (203); A dustproof assembly (3) is installed on the inner surface of the lower pressure plate (1) of the mold, and the dustproof assembly (3) includes a motor base plate (301), a reversing motor (302), a main drive carrier plate (303), a dust removal ring pipe (304), an upper sealing ring plate (305), an iron ring (306), a magnetic rod (307), a main extraction pipe (308), an auxiliary extraction pipe (309), a cleaning pipe (310), an electric high-pressure air pump (311), a tight ring (312), a dust collection box (313) and a filter (314), and the motor base plate (301) is installed on the inner wall of the lower pressure plate (1) of the mold; Locking rods (206) are installed on the upper surface of the mold lower pressure plate (1) and on the inner and outer sides of the lower pad (201), and the upper end of the locking rod (206) is sleeved with a mold upper pressure plate (207); The surface of the upper end of each locking rod (206) is threadedly connected to a locking nut (208), and the surface above each locking nut (208) and located on the locking rod (206) is threadedly connected to a heterosexual nut (209); The inner wall of the upper end of each of the heterosexual nuts (209) is threadedly connected to an extension rod (210), the surface of the upper end of the extension rod (210) is sleeved with a pressurized hydraulic pressure plate (211), and the uppermost surface of each of the extension rods (210) is threadedly connected to a second locking nut (212); A plurality of disc spring fixtures (213) are installed on the lower surface of the upper pressure plate (207) of the mold, and a disc spring pressure plate (214) is installed on the bottom of each of the disc spring fixtures (213); A plurality of supporting columns (215) of equal height are fixedly connected to the lower surface of the pressurized hydraulic pressure plate (211).

2. A jig tightening structure for a motor core according to claim 1, characterized in that: A reversing motor (302) is mounted on the upper surface of the motor base plate (301), a main drive carrier plate (303) is fixedly mounted on the output end on the upper side of the reversing motor (302), and both ends of the main drive carrier plate (303) are fixedly connected to a dust removal ring pipe (304).

3. The jig tightening structure for a motor core according to claim 2, characterized in that: The inner wall of the upper end of the dust removal ring tube (304) is threadedly connected to an upper sealing ring plate (305), and the outer surface of the upper end of the dust removal ring tube (304) is fixedly connected to a plurality of iron rings (306), and the inner cavity of each iron ring (306) is plugged with a magnetic rod (307).

4. A jig tightening structure for a motor core according to claim 3, characterized in that: A main extraction pipe (308) is installed at a central position on the upper surface of the main drive carrier plate (303). The outer surface of the main extraction pipe (308) is connected to the inner wall of the upper end of the dust removal ring pipe (304) via a plurality of auxiliary extraction pipes (309). Each auxiliary extraction pipe (309) is connected to the inner wall of the lower end of the dust removal ring pipe (304) via a cleaning pipe (310).

5. The jig tightening structure for a motor core according to claim 4, characterized in that: The upper end of the main suction pipe (308) is connected to an electric high-pressure suction pump (311) via a flange, a tightening ring (312) is fixedly connected to the outer wall of the exhaust port at the upper end of the electric high-pressure suction pump (311), and a dust collecting box (313) is threadedly connected to the surface of the upper end of the electric high-pressure suction pump (311), and a filter screen (314) is threadedly connected to the inner wall of the upper end of the dust collecting box (313).

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