CN112109010A - Motor is folded and is pressed and car processing reducing mould device - Google Patents
Motor is folded and is pressed and car processing reducing mould device Download PDFInfo
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- CN112109010A CN112109010A CN202010829616.5A CN202010829616A CN112109010A CN 112109010 A CN112109010 A CN 112109010A CN 202010829616 A CN202010829616 A CN 202010829616A CN 112109010 A CN112109010 A CN 112109010A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a motor overlying and turning variable-diameter mould device which comprises a lower base plate, wherein a mandrel is arranged in the center of the lower base plate, a plurality of cams are arranged on the mandrel, a cam indicating disc is arranged at the upper end of the mandrel, round moulds are sleeved outside the cams and the cam indicating disc, and an upper cover plate is fixed at the top end of the round mould; a plurality of mounting holes are formed on the horizontal circumference of the round tire corresponding to the cam, spring guide columns are arranged in the mounting holes, compression springs are arranged on the spring guide columns, one ends of the spring guide columns are fixed in the mounting holes of the round tire through ball guide sleeves and are in contact with the cam through bearings arranged at the top ends of the spring guide columns; the other end of the spring guide post penetrates through a guide post flange arranged on the outer wall of the round tire, and the tail end of the spring guide post is inserted into the connecting plate and fixed through a hexagonal nut; the connecting plate is movably connected with the outer tire or the outer tire with the key groove. The invention can realize the motor laminating and fine-tuning reducing to meet the requirements of turning, and can also meet the requirements of products with different inner diameters by replacing the outer tyres with different thicknesses and realize the quick switching of the tool.
Description
Technical Field
The invention belongs to the field of motor laminating and turning, and particularly relates to a motor laminating and turning variable-diameter mould device.
Background
In the current domestic motor manufacturing, the silicon steel sheets are supported and positioned by the overlying and turning of medium and large motors and wind driven generators without opening a mould. Therefore, motor products with different inner diameters need moulds with corresponding sizes to ensure the cylindricity, the verticality and the coaxiality of the inner circle and the outer circle of the stator and the rotor of the motor. With the development of the diversification of the motor market, for motor production enterprises, one stator inner diameter product needs one mould to correspond to the stator inner diameter product, a fixed design and production mode is formed, and the number of the products and the number of the moulds form a normal state. The design and production mode bring disadvantages that a large amount of clamping tools are used, even a small inner diameter change needs one clamping tool to correspond to production, and after the product stops production, the clamping tool is discarded, and great waste is caused. Therefore, it is very necessary to design a new type of clamping fixture, which needs to satisfy the following requirements: when the inner diameter of a product is changed, the product can be correspondingly produced with little investment, even the product design and production requirements can be met only by simple adjustment without investment, namely, a mould which can produce a plurality of products with different motor inner diameters is designed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a motor laminating and turning diameter-changing mould device. The invention can carry out fine adjustment and diameter change and also can carry out large-amplitude size diameter change; the diameter variation range of the fine adjustment diameter variation is 0.02-0.60 mm, and the method is applied to the process requirement field that the inner diameter of a silicon steel sheet is in clearance fit with the outer diameter of a mould during laminating and is in close fit during turning; the variable diameter range of the large-amplitude size variable diameter is 0-400 mm, and the method is applied to the shape changing of products with different inner diameters.
The invention is realized according to the following technical scheme:
a motor overlying and turning variable-diameter mould device comprises a lower base plate, wherein a mandrel is arranged in the center of the lower base plate, a plurality of cams are arranged on the mandrel, a cam indicating disc is arranged at the upper end of the mandrel, round moulds are sleeved outside the cams and the cam indicating disc, and an upper cover plate is fixed at the top end of the round mould; a plurality of mounting holes are formed on the horizontal circumference of the round tire corresponding to the cam, spring guide pillars are arranged in the mounting holes, compression springs are arranged on the spring guide pillars, one ends of the spring guide pillars are fixed in the mounting holes of the round tire through ball guide sleeves and are in contact with the cam through bearings mounted at the top ends of the spring guide pillars, and the bearings are assembled with the spring guide pillars through bearing assembling pins; the other end of the spring guide post penetrates through a guide post flange arranged on the outer wall of the round tire, the tail end of the spring guide post is inserted into the connecting plate and is fixed through a hexagonal nut, and the tail ends of the spring guide posts positioned on the same vertical line are fixed with the same connecting plate; the connecting plate is movably connected with the outer tire or the outer tire with the key groove.
The cam is equally divided into 2n large areas in the circumferential direction, 2n is more than or equal to 4, each large area is equally divided into m small areas, the cam contour line formed in each small area is a section of circular arc with the same radius from the center of the cam, the radius size among the small areas is changed in a step mode, the cam contour line is gradually increased or decreased along the clockwise or counterclockwise direction of the cam, and the contour lines formed by all the small areas in each large area are completely the same.
The cam indicating disc corresponds to the cam and is divided into 2n large areas, and a plurality of through holes are formed in the same circumference in each large area.
And the upper cover plate is provided with an observation hole.
The upper cover plate is provided with a pin hole, the cam indicating disc is provided with a pin hole, and the pin hole and the cam indicating disc are matched with each other to fix the working position of the cam.
And a flat key is arranged at the joint of the spring guide pillar and the connecting plate to prevent the spring guide pillar from rotating.
The connecting plates are arranged in plurality, and each connecting plate is movably connected with the outer tire or the outer tire with the key groove; the outer tyres and/or the outer tyres with the keyways form a multi-petal outer tyre structure, and the arc surfaces of the outer tyre structure form a circumference and are matched with the inner diameter of the stator.
And a grease filling hole is formed on the spring guide post.
The mandrel is a square shaft.
The bearing group is arranged in the center of the lower backing plate, the bearing is arranged in the center of the upper cover plate, the upper end and the lower end of the mandrel respectively penetrate through the bearing of the upper cover plate and the bearing group of the lower backing plate, and the mandrel can move up and down and keep the shape and position. The shaft shoulder of the mandrel and the upper cover plate are designed with a certain gap, when the mandrel needs to be locked, the shaft shoulder is lifted to be in contact locking with the upper cover plate, and the gap disappears.
In the device, a bearing group is arranged in the center of a lower base plate, a mandrel is arranged on the bearing group, a plurality of cams are arranged on the mandrel, a cam indicating disc is arranged at the upper end of the mandrel, a round tire is sleeved outside the cam and the cam indicating disc, an upper cover plate is fixed at the top end of the round tire, a bearing is arranged in the center of the upper cover plate, and the upper end of the mandrel penetrates through the bearing; a plurality of mounting holes are formed in the horizontal circumference of the round tire corresponding to the cams, a spring guide post is arranged in each mounting hole, a compression spring is arranged on each spring guide post, one end of each spring guide post is fixed in the mounting hole of the round tire through a ball guide sleeve and is contacted with the cam through a bearing arranged at the top end of the spring guide post, each layer of cam is provided with a plurality of spring guide posts in contact fit with the cam, and the other end of each cam penetrates through a guide post flange arranged on the outer wall of the round tire and inserts the tail end into the connecting plate to be fixed through a hexagon nut; the connecting plates are multiple, and each connecting plate is connected with 1 movably connected outer tire and/or an outer tire with a key groove. The invention can realize the motor laminating and fine-tuning reducing to meet the requirements of turning and the requirement of sleeving tires before turning midway, can meet the requirements of products with different inner diameters by replacing the outer tires with different thicknesses, and realizes the quick switching of the tooling.
The bearing at the top end of the spring guide post is in close contact with the working surface of the cam at any moment under the action of the compression spring; the sliding fit of the bearing and the cam enables the spring guide post to move back and forth along the diameter direction of the tire body, so that the change of the size is realized; the other end of the spring guide post penetrates through a guide post flange arranged on the outer wall of the round tire, and the tail end of the spring guide post is inserted into the connecting plate and fixed through a hexagonal nut.
The invention has the advantages and beneficial effects that:
1. the cam design is characterized in that: the cam contour line formed by each small area is a section of circular arc with the same radius from the center of the cam, the radius size among the small areas is changed in a step mode, the cam contour line is gradually increased or decreased in the clockwise or counterclockwise direction, and the contour lines formed by all the small areas in each large area are completely the same. Functionally, a part of continuous small areas have the function of fine adjustment and diameter change, a part of continuous small areas have the function of tire retreating and diameter change, the radius size difference among the continuous small areas having the function of fine adjustment and diameter change is changed in a step mode, the design can be carried out according to the actual product precision requirement, the scheme selects the radius size difference of 0.05mm as the 1-stage size difference, the formed diameter size difference is 0.10mm, and under the same basic size, the diameter can be increased and decreased by rotating the cam clockwise or anticlockwise to find the required diameter size position; the radius size difference between a plurality of continuous small areas with the tire lifting and retreating diameter changing functions is changed in a step mode, but the requirement on the size precision of the area is not high, the radius size difference is generally large, and the scheme selects the radius size difference of 0.5mm as level 1. In use, each small area with the fine adjustment and diameter change functions and the opposite small area opposite to the small area by 180 degrees form a diameter change size, when the cam rotates clockwise or anticlockwise, the spring guide pillar structure can radially displace along with the change of the diameter size of the cam, finally, the change quantity is transmitted to the outermost end of the clamping fixture, namely the outer tire and/or the outer tire with the key groove, and the difference between the diameter size and the diameter size of the adjacent area is the size increase or decrease quantity of the device. The cam line is designed into the same-region equal-diameter region stepped reducing, which is the core of the device, and has the advantages that: 1) in terms of operation, the diameter of the core shaft is the same at any position in each small area due to the equal diameter, the angle difference generated by rotating the core shaft every time in operation is contained, namely, the spring guide post structure can obtain the required diameter size without finely adjusting the rotating angle of the core shaft as long as the expressed diameter is constant at any position in the small area, and thus, the operation stability is high, and the repeatability and the reproducibility are high. 2) In the aspects of manufacturing and assembly, the cam group can be processed by slow-speed wire feeding equipment, the requirement of dimensional precision is easy to realize, and the consistency among a plurality of cams can be ensured. And the design of the square shaft hole, when assembled with the square shaft, the radiuses of the plurality of cams at the same angle are consistent, so that the diameters of the cams at the same bus position are consistent, the size variation of the corresponding cam position on the outer tire is determined to be consistent, the outer tire and the lower cushion plate are kept perpendicular to each other at any time, the cylindricity formed by the outer tire is guaranteed not to change before and after the diameter is changed, and the point is very important for laminating the motor.
2. The mandrel is designed as a square shaft and is matched with the square hole of the cam, so that the consistency of relative angles of the cams is ensured, and the angle difference among the cams during assembly of the round shaft is avoided. And if the mode of matching keys with round shafts is adopted, the straightness of long key groove machining and the parallelism of the keys are difficult to ensure, and finally, assembly errors are caused. The square shaft can be processed by a surface grinding machine and simply measured by a measuring tool to ensure the design requirement, thereby ensuring the consistency of the size variation of the four cover tires after final assembly.
3. Description of the overall structure of the spring guide column: the high-quality bearing is tightly matched with the cam, the bearing is assembled with the spring guide pillar through the bearing assembling pin, the spring guide pillar is provided with the compression spring, and the bearing and the spring guide pillar are pressed by the compression spring to enable the bearing to be pressed on the profile surface of the cam; the sliding fit of the bearing and the cam enables the spring guide post to move back and forth along the diameter direction of the tire body, so that the size change is realized. The other end of the spring guide post penetrates through a guide post flange arranged on the outer wall of the round tire, the tail end of the spring guide post is inserted into the connecting plate and fixed through a hexagon nut, and the outer tire with the key groove are fixed together with the pin and the connecting plate through bolts. The beneficial effects of the part are as follows:
1) the dynamic and static loads and the bearing clearance of the high-quality bearing are both preferable, because the bearing clearance is the only uncertain part in the whole size change process, the influence of the bearing clearance on the size change is reduced as much as possible during selection, and meanwhile, the clearance on the side, in contact with the cam, of the bearing tends to be the minimum or even zero at any moment due to the spring pressure, so that the uncertain change in the whole structure is ensured to be the minimum, and the repeatability is improved.
2) The whole design is that the cam is rigidly connected to form a rigid body from the center of the inner diameter of the bearing, namely the center line of the pin, to the spring guide post, to the connecting plate, to the outer tire and the outer tire with the key groove, so that when the cam rotates to realize size change, the change result is almost free from size loss, the size change value of the cam rotation is the size change value obtained by the outer diameter of the clamping fixture, and the change of the cam is completely converted to the change of the outer diameter of the clamping fixture, thereby ensuring high precision, high repeatability and reproducibility.
3) The reasonable elastic force of the compression spring ensures that the clearance between the contact surface of the bearing and the cam and the clearance of the bearing tend to be zero, thereby ensuring the realization of the precision, the high repeatability and the reproducibility of the variable diameter size. In addition, the use of the compression spring also ensures that the outer tire and the outer tire with the key slot can be accurately recovered in place when the outer diameter is reduced.
4) The shaft center design of spring guide pillar has an oil filler point, can provide lubricated grease for bearing and cam contact surface through this oil filler point, reduces friction loss between them, has improved life, need not dismantle simultaneously whole matrix and just can maintain the maintenance.
4. The device can realize the motor production demand of jumbo size scope, and a set of mould can correspond the production of many medium and large-scale motor models that the internal diameter difference is within 400mm promptly. One set of mould corresponds multiple product, reduces a lot of mould input cost, and the product switches simple and easy.
5. The device can realize the change of tiny size, only needs clockwise or anticlockwise rotation center pin just can realize the mould external diameter and rise and reduce, simple and easy. The device meets the requirement that the outer diameter of the clamping fixture needs to be adjusted to a proper gap when the stator is laminated, and the gap tends to be the minimum when the operator carries out subsequent turning, so that the outer diameter of the clamping fixture supports the inner diameter of the iron core, the cylindricity of the inner diameter of the stator iron core is ensured to be the minimum, and the device can be used for carrying out fine adjustment without dismounting the stator and also meets the requirement.
6. When the tire is removed, the outer diameter of the mold is reduced, so that the motor iron core is withdrawn from the mold in a friction-free state, the inner diameter of the stator is ensured not to be scratched, and the loss of the motor is ensured to be minimum.
7. The mould can not only use the 'laminating-turning-tyre-unloading' of the stator as a coherent process step, but also can be used for other stators with turning requirements from turning. When the inner diameter variable stator is continuously used, the inner diameter cannot be scratched when the inner diameter of the stator is sleeved, and meanwhile, the inner diameter of the stator is tightly attached to the outer diameter of the clamping fixture, so that the concentricity of the inner circle of the stator and the machined outer circle is ensured.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 3;
FIG. 6 is a schematic view of the construction of the cam of the present invention;
FIG. 7 is a front view of the cam indicating plate of the present invention;
wherein, 1, a lower cushion plate; 2. a round tire; 3. an upper cover plate; 4. a coupling plate; 5. a cam; 6. a cam indicating dial; 7. a mandrel; 8. an outer tire; 9. an outer tire with a keyway; 10. a ball guide sleeve; 11. a compression spring; 12, a spring guide post; 13. a guide post flange; 14. a flat bond; 15. a hexagonal nut; 16. an observation hole; 17. a bearing assembly pin; 18. a bearing; 19. a grease injection hole; 20. a bearing set; 21. and a bearing.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1-7, a motor is folded and is turned over and process reducing mould device, includes lower bolster 1, its characterized in that: a bearing group 20 is arranged in the center of the lower base plate 1, a mandrel 7 is arranged on the bearing group 20, a plurality of cams 5 are arranged on the mandrel 7, a cam indicating disc 6 is arranged at the upper end of the mandrel 7, round tires 2 are sleeved outside the cams 5 and the cam indicating disc 6, an upper cover plate 3 is fixed at the top ends of the round tires 2, a bearing 21 is arranged in the center of the upper cover plate 3, and the upper end of the mandrel 7 penetrates through the bearing 21; a plurality of mounting holes are formed in the horizontal circumference of the round tire 2 corresponding to the cam 5, a spring guide post 12 is arranged in each mounting hole, a compression spring 11 is arranged on each spring guide post 12, one end of each spring guide post 12 is fixed in the mounting hole of the round tire 2 through a ball guide sleeve 10 and is contacted with the cam 5 through a bearing 18 arranged at the top end of the spring guide post 12, a plurality of spring guide posts 12 are arranged on each layer of cam 5 to be in contact fit with the cam, and the other end of each layer of cam 5 penetrates through a guide post flange 13 arranged on the outer wall of the round tire 2 and is fixed by a hexagon nut 15 after the tail end of the; the connecting plates 4 are multiple, and each connecting plate 4 is connected with 1 movable connecting outer tire 8 and/or a key-groove outer tire 9. Wherein the clearance L between the guide post flange 13 and the coupling plate 4 is about 2 mm.
The cam 5 is equally divided into 2n large areas in the circumferential direction, 2n is more than or equal to 4, each large area is equally divided into m small areas, the cam contour line formed in each small area is a section of circular arc with the same radius from the center of the cam, the radius size among the small areas is changed in a step mode, the cam contour line is gradually increased or decreased along the clockwise or counterclockwise direction of the cam, and the contour lines formed by all the small areas in each large area are completely the same.
The cam indicating disc 6 corresponds to the cam 5 and is divided into 2n large areas, and a plurality of through holes are formed in the same circumference in each large area.
As shown in FIG. 6, the cam 5 of the present invention is divided into 4 large areas, and the difference of the radius sizes of the two adjacent small areas in each large area is 0.05mm between R200 and R199.70; the difference of the radius sizes of two adjacent small areas is 0.5mm between R199.70 and R198.20.
The outer diameter direction of the cam indicating disc 6 is symmetrical about a central line, the cam indicating disc 6 is divided into four large areas, and a plurality of through holes are formed in the same circumference in each large area. As shown in fig. 7, the holes are perforated with a diameter of 10 on a distribution circle of diameter 300, 7 each for each large area, and are sequentially deflected by 9 degrees; sequentially carving the serial numbers 1-7 on the hole sites.
The upper cover plate 3 is provided with an observation hole 16.
The upper cover plate 3 is provided with pin holes, the cam indicating disc 6 is provided with pin holes, and the pin holes and the cam indicating disc are matched with each other to fix the working position of the cam 5.
A flat key 14 is arranged at the joint of the spring guide post 12 and the connecting plate 4.
The connecting plates 4 are provided with a plurality of connecting plates, and each connecting plate 4 is movably connected with the outer tire 8 or the outer tire 9 with the key groove; the outer tyres 8 and/or the outer tyres 9 with the keyways form a multi-petal outer tyre structure, and the arc surfaces of the outer tyre structure form a circumference and are matched with the inner diameter of the stator.
The spring guide post 12 is formed with a grease injection hole 19.
The mandrel 7 is a square shaft.
The center of the lower backing plate 1 is provided with a bearing group, the center of the upper cover plate 3 is provided with a bearing, and the upper end and the lower end of the mandrel 7 respectively penetrate through the bearing of the upper cover plate 3 and the bearing group of the lower backing plate 1.
The working process of the invention is as follows:
fast switching:
the four-piece type cover tire structure is formed by the three cover tires 8 and the cover tire 9 with the key slot, the arc surface matched with the inner diameter of the stator is formed by lathing, so that the standard block is manufactured, when stator cores with different inner diameters are laminated, the cover tires 8 and the cover tires 9 with the key slot are directly disassembled and replaced by bolts and screws, the requirement on the size of the inner diameter of a stator of a product is met, and the tool is rapidly switched.
The stator laminating process comprises the following steps:
rotating the mandrel 7 to enable the observation hole 16 on the upper cover plate 3 to be over against the No. 4 mark (theoretical zero position) of the cam indicating disc 6, wherein the position is the size required by laminating the stator silicon steel sheets (at the moment, a proper gap exists between the punching sheet and the clamping fixture), and laminating the stator;
the internal structure acts specifically as follows: because the mandrel 7 is in interference fit with the cam 5, when the mandrel 7 rotates, 4 large-area cam surfaces of the cam 5 simultaneously act on a bearing 18 integrally assembled with a spring guide post 12, the cam 5 rotates to a position in a No. 4 mark (theoretical zero position), the spring guide post 12 presses the bearing 18 on the cam 5 at any moment through a compression spring 11, the other end of the spring guide post 12 is connected with a connecting plate 4, the spring guide post 12 transmits the size change to the connecting plate 4 due to the size increase or decrease of the cam, the connecting plate 4 is connected with three outer tires 8 and the outer tire 9 with the key grooves, the outer diameter of a tire formed by the three outer tires 8 and the outer tire 9 with the key grooves changes accordingly, and the outer diameter of the tire can just meet the proper laminating size (the size is realized when the outer tire 8 and the outer tire 9 with the key grooves are machined and manufactured) along with the continuous rotation.
Jacking process 1: (this step occurs as a "lamination-turning-tire-unloading" coherent process, after lamination and before turning)
1. The mandrel 7 is rotated anticlockwise to push against the inner diameter of the stator core to be processed, the diameter of the cam 5 is increased in a circumferential diameter formed by the outer tire 8 and the outer tire 9 with the key slot according to the change of 0.1mm per gear (different variation can be realized according to the design change of the step size of the cam) in 4 large areas in sequence, and the purpose of eliminating the stator laminating gap is achieved;
the internal structure acts specifically as follows: because the mandrel 7 is in interference fit with the cam 5, when the mandrel 7 rotates, 4 large-area cam surfaces of the cam 5 simultaneously act on the bearing 18 integrally assembled with the spring guide post 12, the cam 5 continuously rotates anticlockwise, the spring guide post 12 presses the bearing 18 on the cam 5 at any moment through the compression spring 11, the other end of the spring guide post 12 is connected with the connecting plate 4, the spring guide post 12 transmits the size change to the connecting plate 4 due to the size increase of the cam, the connecting plate 4 is connected with the three outer tires 8 and the outer tire 9 with the key slot, and the outer diameter of a mold formed by the three outer tires is increased along with the size change, so that the inner diameter of a stator core to be processed can be further jacked, and the laminating gap is eliminated;
and (3) a jacking process 2: (this step is before turning when the stator that has the turning requirement is used continuously from turning)
1. The mandrel 7 is rotated clockwise, so that the observation hole 16 on the upper cover plate 3 is over against the No. 8 mark position of the cam indicating disc 6, the position is the position with the inner diameter reduced, and a stator core can be sleeved;
2. after the outer diameters of the outer tire 8 and the outer tire 9 with the key grooves become smaller, the stator core to be processed can be placed on the lower cushion plate 1;
3. rotating the mandrel 7 anticlockwise to jack the inner diameter of the stator core to be processed, and sequentially increasing the diameters of the outer tire 8 and the outer tire 9 with the key slot according to the change of 0.1 per gear (different variable quantity per gear can be realized according to the design change of the step size of the cam) in 4 large areas until the inner diameter of the stator core is jacked;
the internal structure acts specifically as follows: because the mandrel 7 is in interference fit with the cam 5, when the mandrel 7 rotates clockwise, the contact position of the cam 5 and the bearing 18 is rotated to the No. 8 marking position of the cam indicating disc 6, at the moment, the outer diameter of a mould formed by the three outer casings 8 and the outer casing 9 with the key slots is reduced, the outer diameter of the mould can be sleeved into an iron core, the cam 5 continues to rotate anticlockwise, the bearing 18 is pressed on the cam 5 by the spring guide post 12 through the compression spring 11, the other end of the spring guide post 12 is connected with the connecting plate 4, the size change is transmitted to the connecting plate 4 by the spring guide post 12 due to the size increase of the cam, the connecting plate 4 is connected with the three outer casings 8 and the outer casing 9 with the key slots together, the outer diameter of the mould formed by the three outer casings 8 and the outer casing 9;
after the jacking operation is completed, the positioning pin is inserted into the pin hole beside the observation hole, the pin hole is penetrated together with the pin hole on the cam indicating disc 4, the mandrel is locked, the working position of the cam 5 is kept, the large nut on the mandrel 7 is screwed, and as shown in fig. 5, when 0.5mm between the shoulder and the upper cover plate 3 is gradually reduced to 0, the mandrel 7 is completely locked, and the turning of the stator core can be started.
The tire unloading process comprises the following steps:
1. the positioning pin is pulled out, the mandrel 7 is rotated clockwise, the radius size of each large area of the cam 5 on the mandrel 7, which is contacted with the bearing 18 on the spring guide post 12, is reduced step by step one by one, the spring guide post 12 moves towards the center of the mandrel 7 in the ball guide sleeve 10 on the premise that the pressure of the compression spring 11 is released by the spring guide post 12, the hexagon nut 15 on the spring guide post 12 drives the connecting plate 4 to move together, the connecting plate 4 drives the three outer tires 8 and the outer tire 9 with the key groove to move towards the center of the tire, the formed circular diameter is smaller than the inner diameter of the stator core, and the tire can be disassembled.
2. And hoisting the processed stator core to finish one-time turning.
In conclusion, the invention realizes the fine adjustment and diameter reduction of the size of the clamping fixture by utilizing the change of the outer diameter of the cam matched with the mandrel; the rotating cam is used for tightly propping the outer tire and the outer tire with the key slot to eliminate the gap between the iron core and the mold; the design of the cam, the spring guide post and the compression spring is utilized to realize rigid connection of all components during fine adjustment, so that high accuracy, repeatability and reproducibility are realized; the inner diameter is not scratched when the tire is withdrawn due to the variable inner diameter; the lower base plate and the vertical lathe are positioned in the center, so that the clamping fixture is coaxial; a large nut is arranged at the upper end of the mandrel, and the position of the mandrel is locked; the model switching of products with different inner diameters is realized through the change of the thickness of the outer tire of the clamping fixture; has wide application prospect.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a motor is folded and is pressed and car processing reducing mould device, includes lower bolster (1), its characterized in that: a mandrel (7) is arranged at the center of the lower base plate (1), a plurality of cams (5) are arranged on the mandrel (7), a cam indicating disc (6) is arranged at the upper end of the mandrel (7), a round tire (2) is sleeved outside the cams (5) and the cam indicating disc (6), and an upper cover plate (3) is fixed at the top end of the round tire (2); a plurality of mounting holes are formed in the horizontal circumference of the round tire (2) corresponding to the cam (5), spring guide columns (12) are arranged in the mounting holes, compression springs (11) are arranged on the spring guide columns (12), one ends of the spring guide columns (12) are fixed in the mounting holes of the round tire (2) through ball guide sleeves (10) and are in contact with the cam (5) through bearings (18) mounted at the top ends of the spring guide columns (12), and the bearings (18) are assembled with the spring guide columns (12) through bearing assembling pins (17); the other end of the spring guide post (12) penetrates through a guide post flange (13) arranged on the outer wall of the round tire (2), the tail end of the spring guide post is inserted into the connecting plate (4) and is fixed through a hexagonal nut (15), and the tail ends of the spring guide posts (12) positioned on the same vertical line are fixed with the same connecting plate (4); the connecting plate (4) is movably connected with the outer tire (8) or the outer tire (9) with the key groove.
2. The motor laminating and turning diameter-changing clamping fixture device according to claim 1, wherein the cam (5) is equally divided into 2n large areas in the circumferential direction, 2n is larger than or equal to 4, each large area is equally divided into m small areas, a cam contour line formed in each small area is a circular arc with the same radius from the center of the cam, the radius size among the small areas is changed in a step mode, the radius size among the small areas is gradually increased or decreased along the clockwise or counterclockwise direction of the cam, and contour lines formed by all the small areas in each large area are completely the same.
3. The electric machine laminating and turning diameter-changing clamping fixture device as claimed in claim 1, wherein the cam indicating disc (6) corresponds to the cam (5) and is divided into 2n large areas, and each large area is provided with a plurality of through holes on the same circumference.
4. The electric machine laminating and turning diameter-changing clamping fixture device as claimed in claim 1, wherein the upper cover plate (3) is provided with an observation hole (16).
5. The electric machine overlying and turning diameter-variable clamping fixture device according to claim 1, wherein pin holes are formed in the upper cover plate (3), pin holes are formed in the cam indicating plate (6), and the pin holes and the cam indicating plate are matched with each other to fix the working position of the cam (5).
6. The electric machine laminating and turning diameter-changing clamping fixture device according to claim 1, wherein a flat key (14) is arranged at the joint of the spring guide post (12) and the connecting plate (4).
7. The electric machine laminating and turning diameter-changing mould device according to claim 1, wherein a plurality of connecting plates (4) are provided, and each connecting plate (4) is movably connected with the outer tyre (8) or the outer tyre (9) with the key groove; the outer tyres (8) and/or the outer tyres (9) with the keyways form a multi-petal outer tyre structure, and the arc surfaces of the outer tyre structure form a circumference and are matched with the inner diameter of the stator.
8. The electric machine laminating and turning diameter-changing clamping fixture device as claimed in claim 1, wherein a grease hole (19) is formed on the spring guide post (12).
9. The electric machine laminating and turning diameter-changing clamping fixture device as claimed in claim 1, wherein said mandrel (7) is a square shaft.
10. The motor overlying and turning diameter-variable clamping fixture device according to claim 1, wherein a bearing set is arranged at the center of the lower backing plate (1), a bearing is arranged at the center of the upper cover plate (3), and the upper end and the lower end of the mandrel (7) respectively penetrate through the bearing of the upper cover plate (3) and the bearing set of the lower backing plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829616.5A CN112109010A (en) | 2020-08-18 | 2020-08-18 | Motor is folded and is pressed and car processing reducing mould device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829616.5A CN112109010A (en) | 2020-08-18 | 2020-08-18 | Motor is folded and is pressed and car processing reducing mould device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112109010A true CN112109010A (en) | 2020-12-22 |
Family
ID=73805101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010829616.5A Pending CN112109010A (en) | 2020-08-18 | 2020-08-18 | Motor is folded and is pressed and car processing reducing mould device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112109010A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335554A (en) * | 2021-04-30 | 2021-09-03 | 成都飞机工业（集团）有限责任公司 | Shaft hole coaxiality positioning assembly and positioning method using same |
| CN114629309A (en) * | 2022-03-15 | 2022-06-14 | 苏州御龙模具有限公司 | Silicon steel sheet laminating device and stator twisted slot iron core silicon steel sheet laminating method |
-
2020
- 2020-08-18 CN CN202010829616.5A patent/CN112109010A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335554A (en) * | 2021-04-30 | 2021-09-03 | 成都飞机工业（集团）有限责任公司 | Shaft hole coaxiality positioning assembly and positioning method using same |
| CN114629309A (en) * | 2022-03-15 | 2022-06-14 | 苏州御龙模具有限公司 | Silicon steel sheet laminating device and stator twisted slot iron core silicon steel sheet laminating method |
| CN114629309B (en) * | 2022-03-15 | 2024-01-12 | 苏州御龙精密科技有限公司 | Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method |
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Inventor after: Wang Lin Inventor after: Ou Yufeng Inventor after: Wu Qifeng Inventor before: Wang Lin Inventor before: Hou Chao |