CN210160254U

CN210160254U - Motor stator core stamping die

Info

Publication number: CN210160254U
Application number: CN201920736616.3U
Authority: CN
Inventors: 王优; 赵宇鹏
Original assignee: Huizhou University
Current assignee: Huizhou University
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-03-20
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to a motor stator core stamping die for the one-time stamping forming of stator core center cell type and edge punching hole, including being used for bearing the bed die of waiting to process stator core, with bed die fixed connection's guide pillar and with guide pillar sliding connection's last mould, go up the mould and include the die with guide pillar sliding connection's upper die base, fixed mounting in upper die base department, with upper die base rigid connection and be used for blanking stator core center cell type blanking terrace die, with upper die base rigid connection's the terrace die that punches a hole. The utility model discloses a stamping die is the flip-chip mould, along with upper die base whereabouts and accomplish the stamping forming in central cell type and edge punching hole simultaneously on stator core with blanking terrace die, the terrace die that punches a hole of upper die base fixed connection, and this mould can be stamping forming in a station, improves production efficiency greatly, effectively reduces manufacturing cost.

Description

Motor stator core stamping die

Technical Field

The utility model relates to a stator shaping field especially is about a motor stator core stamping die.

Background

The motor stator core is the core component of the motor, and the quality of the motor stator core directly influences the performance of the motor. The manufacturing process of the motor stator core comprises two parts of punching sheet manufacturing and iron core press-fitting. At present, a multi-station progressive die stamping process is mostly used for the production process of the stator core punching sheets of the motors produced in batches in the market. However, the progressive die has larger profile dimension, not only is complex to manufacture and higher in cost, but also has stricter requirements on the precision and the service life of the die.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a solve above-mentioned technical problem, provide a motor stator core stamping die, can be in a station stamping forming, improve production efficiency greatly, effectively reduce manufacturing cost.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a motor stator core stamping die for one-time stamping forming of stator core center cell type and edge punching hole, including the bed die that is used for bearing the stator core of treating processing, with bed die fixed connection's guide pillar, and with guide pillar sliding connection's last mould, go up the mould and include the upper die base with guide pillar sliding connection, fixed mounting at the die of upper die base department, with the blanking terrace die that upper die base rigid connection is used for blanking stator core center cell type, with the terrace die that punches a hole that upper die base rigid connection is used for blanking stator core edge punching hole.

Preferably, the die is provided with and runs through the circular slot, runs through to have set up on the circular slot and can take place longitudinal displacement for the die and be used for the counterpoint to wait to process stator core's punch-die, and the punch-die appearance is the annular platform of second grade of echelonment, and during the little ring of punch-die's surface orientation bed die inserted and run through the circular slot, the edge that runs through the circular slot on the die was taken to the big ring of punch-die.

Preferably, the size of the outer edge section circle of the small circular ring of the punch-die, the size of the section circle of the inner wall of the through circular groove and the size of the outer edge section circle of the stator core to be processed are matched with each other and are nested with each other.

Preferably, the lower die comprises a lower die base and an elastic stripper arranged on the lower die base, the elastic stripper is arranged under the female die, and the upper surface of the elastic stripper can be contacted with the lower surface of the female die along with the downward movement of the upper die base.

Preferably, the other business turn over material way and guider that still is provided with and is used for will treating to process stator core from the outside and deliver to under the concavo-convex mould one by one, guider is including setting up in business turn over material way both sides and be used for treating to process stator core and carry out spacing a plurality of guide round pins and set up on business turn over material way and be used for treating to process stator core and carry out spacing and have elastic activity striker pin in the direction of pay-off.

Preferably, the upper die base is provided with a pushing device for pushing the punched stator core from the upper die, the pushing device comprises a material beating rod penetrating the upper die base, a top plate in contact connection with the end of the material beating rod and a push rod in contact connection with the top plate, and the push rod is connected with the punch-die.

Preferably, the upper die base is connected with the guide pillar in a sliding mode through the guide sleeve, a flange type die handle sleeved with the knockout rod is arranged at the upper die base, and the flange type die handle is fixedly connected with the upper die base through a screw.

Preferably, the blanking male die and the punching male die are fixedly connected with the upper die base through a male die fixing plate, a base plate is further arranged at the male die fixing plate and the upper die base, the base plate, the male die fixing plate and the female die are sequentially stacked from top to bottom and fixedly connected through a cylindrical pin and a bolt.

Preferably, still be provided with polyurethane rubber and punch and die fixed plate between elastic stripper and die holder, the circular through hole that is used for holding the stripper block is all dug and is equipped with in the center of elastic stripper, polyurethane rubber, punch and die fixed plate and die holder, and punch and die fixed plate and die holder pass through fastening screw and connect, and elastic stripper, polyurethane rubber, punch and die fixed plate and die holder pass through the screw releasable connection of unloading.

Preferably, a pushing piece block used for supporting the stator core is further arranged beside the elastic unloading plate.

The utility model discloses compare in prior art's beneficial effect and be:

at present, the multi-station progressive die stamping process for batch production of motor stator core stamped sheets on the market is generally complex in manufacturing, high in cost and difficult to guarantee precision. Therefore, the punching-blanking compound die is innovatively designed, the punching of the stator central groove profile and the stator penetrating screw hole can be realized in one station, the manufacturing cost can be effectively reduced on the basis of ensuring the coaxiality of the stator core, and the labor productivity can be improved.

The utility model discloses a stamping die is the flip-chip mould, and with upper die base fixed connection's blanking terrace die, the terrace die that punches a hole along with upper die base whereabouts and accomplish the stamping forming of central cell type and edge punching hole simultaneously on stator core, among the prior art, central cell type and edge punching hole need go on respectively through two stations, and this mould can be in stamping forming in a station, improves production efficiency greatly, effectively reduces manufacturing cost.

Drawings

Fig. 1 is a partial sectional view of a stamping die for a stator core of a motor according to an embodiment of the present invention.

Fig. 2 is a structural diagram of the feeding/discharging channel and the guiding device according to an embodiment of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1-2, an embodiment of the present invention includes:

as shown in fig. 2, the stator core manufactured by the apparatus in this embodiment has a stator core 01 having a center groove 02 in a center region and a through hole 03 in an edge region.

The utility model provides a motor stator core stamping die, a one-time stamping forming for stator core center cell type and edge punching hole, including the bed die that is used for bearing the stator core of treating processing, with bed die fixed connection's guide pillar 6, and with guide pillar 6 sliding connection's last mould, go up the mould and include the upper die base 10 with guide pillar 6 sliding connection, the die board 8 of fixed mounting in upper die base 10 department, with upper die base 10 rigid connection and be used for blanking stator core center cell type blanking terrace die 21, with upper die base 10 rigid connection and be used for blanking the terrace die 15 that punches of stator core edge punching hole. Stamping die is the flip-chip die, and the stamping forming of central cell type and marginal feed-through hole is accomplished simultaneously on stator core along with upper die base whereabouts to blanking terrace die 21, the terrace die 15 that punches a hole of upper die base fixed connection, and among the prior art, central cell type and marginal feed-through hole need go on respectively through two stations, and this mould can be stamping forming in a station, improves production efficiency greatly, effectively reduces manufacturing cost.

The die plate 8 is provided with a through circular groove, a punch-die 22 which can longitudinally displace relative to the die plate 8 and is used for aligning a stator core to be processed is arranged on the through circular groove, the appearance of the punch-die 22 is a stepped second-stage annular platform, the surface of a small circular ring of the punch-die 22 faces the lower die and is inserted into the through circular groove, and the edge of the through circular groove on the die plate 8 is abutted by a large circular ring of the punch-die 22. The size of the outer edge section circle of the small circular ring of the punch-die 22, the size of the inner wall section circle of the through circular groove and the size of the outer edge section circle of the stator core to be processed are matched with each other and are nested with each other. The stator core that treats processing sends to the below of punch and die one by one, along with the pushing down of upper die base to because the punch and die has the characteristic that can take place longitudinal displacement for the bed die, make stator core with punch and die jack-up and enter into simultaneously and run through circular slot department, realize stator core's accurate location from this.

The lower die comprises a lower die base 3 and an elastic stripper 7 arranged on the lower die base 3, the elastic stripper 7 is arranged right below the die board 8, and the upper surface of the elastic stripper 7 can be contacted with the lower surface of the die board 8 along with the downward movement of the upper die base 10. Because the elastic stripper plate has better elasticity, the unloading force is less, and the stator core can obtain better quality, higher straightness.

The other business turn over material way 04 and guider that are used for sending the stator core of treating processing to under the concavo-convex mould one by one from the outside that is provided with of bed die, guider is including setting up in business turn over material way both sides and being used for treating processing stator core and carrying on a plurality of guide round pins 2 spacing with the direction of pay-off direction vertically orientation and set up on business turn over material way and be used for treating processing stator core and carry on spacing and have elastic activity striker pin 1 in the direction of pay-off. The guide pin ensures that the stator core accurately moves along the advancing direction of the material inlet and outlet channel, and the movable material blocking pin ensures the advancing distance of the stator core on the material inlet and outlet channel, namely the accuracy of the step pitch.

The upper die base 10 is provided with a pushing device for pushing the punched stator core from the upper die, the pushing device comprises a material beating rod 17 penetrating the upper die base 10, a top plate 14 in contact connection with the end of the material beating rod 17, and a push rod 20 in contact connection with the top plate 14, and the push rod 20 is connected with a punch-die 22. Acting force is applied to the part, exposed outside the upper die base, of the knockout rod 17, the knockout rod sequentially passes through the top plate, the push rod and the punch-die to be transmitted to the stator core, the punched stator core is separated from the punch-die, and meanwhile, the stator core is separated from punching waste.

The upper die holder 10 is connected with the guide post 6 in a sliding mode through a guide sleeve 9, a flange type die handle 16 which covers the knockout rod 17 is arranged at the upper die holder 10, and the flange type die handle 16 is fixedly connected with the upper die holder through a screw 18. The blanking male die 21 and the punching male die 15 are fixedly connected with the upper die base 10 through a male die fixing plate 11, a backing plate 12 is further arranged at the positions of the male die fixing plate 11 and the upper die base 10, the backing plate 12, the male die fixing plate 11 and the female die plate 8 are sequentially stacked from top to bottom and fixedly connected through a cylindrical pin 13 and a bolt 19. Still be provided with polyurethane rubber 5 and punch and die fixed plate 4 between elastic stripper 7 and die holder 3, the circular through hole that is used for holding stripper 23 is all dug at the center of elastic stripper 7, polyurethane rubber 5, punch and die fixed plate 4 and die holder 3, and punch and die fixed plate 4 and die holder 3 pass through fastening screw 25 and connect, and elastic stripper 7, polyurethane rubber 5, punch and die fixed plate 4 and die holder 3 are through 24 releasable connection of the screw of unloading. A pushing piece block 23 for supporting the stator core is arranged beside the elastic stripper plate 7.

The mold is assembled as follows

1. And determining a mold assembly reference. The die set is a blanking and punching compound die, a punch and a die are used as reference parts, and the position of the punch and the die in the die is determined firstly during assembly.

2. And (5) installing a mould frame. And pressing the guide pillar into the lower die base by using a press machine. In the pressing-in process, measuring and correcting the verticality of the guide posts, and pressing the two guide posts in; the upper die base is reversely sleeved on the guide post, then the guide sleeve is sleeved on the guide post, the coaxiality of an inner circle and an outer circle of the press-fit part of the guide sleeve is checked by using a dial indicator, the maximum deviation is placed at the vertical position of a central connecting line of the two guide sleeves, so that the change of the center distance caused by different axes can be adapted, then the guide sleeves are pressed in, and the die carrier installation is completed.

3. And (5) installing a lower die. And determining the position of the punch-die on the lower die holder, clamping the punch-die and the lower die holder by using parallel clamping plates, and marking a material leaking hole line on the lower die holder. And (3) processing a material leaking hole of the lower die base, wherein the size of the material leaking hole of the lower die base is 0.5-1mm larger than that of the single side of the material leaking hole of the concave-convex die.

4. And (6) installing an upper die. And installing an upper die and adjusting a blanking gap. And lightly clamping the punching male die, the backing plate, the blanking male die, the top plate and the upper die base by using parallel clamping plates, then adjusting the blanking gap between the punching male die and the male and female dies, and adjusting the blanking gap between the female die plate and the blanking male die in the male and female dies. Until the inner and outer blanking gaps are uniform, and then the flat core splint is used for clamping. Then the parallel clamping plates are removed, the knockout rod and the push rod are arranged at the flange type die shank and the upper die base, the backing plate and the male die fixing plate are firstly fixed by utilizing the cylindrical pin.

5. And installing an elastic stripper plate. The elastic unloading plate is sleeved on the punch-die and the die, the elastic unloading plate and the die holder are clamped tightly by the parallel clamping plates, then the unloading screw hole is drilled on the drilling machine, the parallel clamping plates are disassembled, and the fastening screw, the polyurethane rubber 5 and the unloading screw are loaded.

The stamping die of this embodiment is the flip-chip die, and with upper die base fixed connection's blanking terrace die, the terrace die that punches a hole along with the upper die base whereabouts and accomplish the stamping forming of center cell type and edge punching hole simultaneously on stator core, among the prior art, center cell type and edge punching hole need go on respectively through two stations, and this mould can be stamping forming in a station, improves production efficiency greatly, effectively reduces manufacturing cost.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a motor stator core stamping die, its characterized in that for the one-time stamping forming of stator core center channel type and edge punching hole, including the bed die that is used for bearing the stator core of treating processing, with bed die fixed connection's guide pillar (6) and with guide pillar (6) sliding connection's last mould, go up the mould and include upper die base (10) with guide pillar (6) sliding connection, fixed mounting is at die cavity board (8) of upper die base (10) department, with upper die base (10) rigid connection and be used for blanking stator core center channel type blanking terrace die (21), with upper die base (10) rigid connection and be used for blanking punch terrace die (15) of stator core edge punching hole.

2. The punching die for the stator core of the motor according to claim 1, wherein the concave die plate (8) is provided with a through circular groove, a punch-die (22) which can longitudinally displace relative to the concave die plate (8) and is used for aligning the stator core to be processed is lapped on the through circular groove, the punch-die (22) is in a shape of a stepped secondary annular table, the surface of a small circular ring of the punch-die (22) faces the lower die and is inserted into the through circular groove, and a large circular ring of the punch-die (22) is lapped on the concave die plate (8) at the edge of the through circular groove.

3. The punching die for the stator core of the motor as recited in claim 2, wherein the outer circular cross-sectional circle dimension of the small circular ring of the punch and die (22), the cross-sectional circle dimension of the inner wall of the through circular groove and the outer circular cross-sectional circle dimension of the stator core to be processed are fitted and nested with each other.

4. The punching die for the stator core of the motor according to any one of claims 1 to 3, characterized in that the lower die comprises a lower die holder (3) and an elastic stripper plate (7) arranged on the lower die holder (3), the elastic stripper plate (7) is arranged right below the cavity plate (8), and the upper surface of the elastic stripper plate (7) can be contacted with the lower surface of the cavity plate (8) along with the downward movement of the upper die holder (10).

5. The stamping die for the stator core of the motor as claimed in claim 4, wherein a material feeding and discharging channel and a guiding device for feeding the stator core to be processed to a position under the male and female die one by one from the outside are further arranged beside the lower die, and the guiding device comprises a plurality of material guiding pins arranged on two sides of the material feeding and discharging channel and used for limiting the stator core to be processed in a direction perpendicular to a feeding direction, and movable material blocking pins arranged on the material feeding and discharging channel and used for limiting the stator core to be processed in the feeding direction and having elasticity.

6. The punching die for the stator core of the motor according to claim 2 or 3, wherein the upper die holder (10) is provided with a stripper device for pushing the punched stator core off the upper die, the stripper device comprises a material beating rod (17) penetrating the upper die holder (10), a top plate (14) in contact connection with the end of the material beating rod (17), and a push rod (20) in contact connection with the top plate (14), and the push rod (20) is connected with the punch-die (22).

7. The punching die for the stator core of the motor as claimed in claim 6, wherein the upper die holder (10) is slidably connected with the guide post (6) through a guide sleeve (9), a flanged die shank (16) which externally sleeves the knockout pin (17) is arranged at the upper die holder (10), and the flanged die shank (16) is fixedly connected with the upper die holder through a screw (18).

8. The punching die for the stator core of the motor according to claim 4, wherein the blanking male die (21) and the punching male die (15) are fixedly connected with the upper die holder (10) through a male die fixing plate (11), a backing plate (12) is further arranged at the positions of the male die fixing plate (11) and the upper die holder (10), the backing plate (12), the male die fixing plate (11) and the female die plate (8) are sequentially stacked from top to bottom and fixedly connected through a cylindrical pin (13) and a bolt (19).

9. The stamping die for the stator core of the motor according to claim 4, wherein a polyurethane rubber (5) and a punch-die fixing plate (4) are further arranged between the elastic stripper plate (7) and the lower die holder (3), circular through holes for accommodating the pushing block (23) are dug in the centers of the elastic stripper plate (7), the polyurethane rubber (5), the punch-die fixing plate (4) and the lower die holder (3) are connected through fastening screws (25), and the elastic stripper plate (7), the polyurethane rubber (5), the punch-die fixing plate (4) and the lower die holder (3) are detachably connected through unloading screws (24).

10. The punching die for the stator core of the motor as claimed in claim 4, wherein a pushing piece (23) for supporting the stator core is further arranged beside the elastic stripper plate (7).