Combined stamping die for stator and rotor punching sheets of motor and use method of combined stamping die

Abstract

The invention discloses a motor stator and rotor punching sheet combined type stamping die and a using method thereof, and relates to the field of motor punching sheet machining. The die comprises an upper die base, an upper padding plate, a clamping plate, a male die, a stripper plate, a female die and a lower die base which are sequentially arranged from top to bottom; the male die comprises a first stator punch, a second stator punch, a first rotor punch, a second rotor punch and a separation punch, the punches can be installed on the clamping plate in an up-and-down moving mode, five ejector block holes and three sliding grooves are formed in the upper base plate, a push plate is installed on each sliding groove in a sliding mode, an ejector block is installed in each ejector block hole, and the ejector blocks are connected with the ejector block holes in a sliding mode. A protrusion is arranged on the top face of the ejector block, a groove is formed in the bottom face of the push plate, when the protrusion of the ejector block is matched with the groove of the push plate, the lower end of the punch opposite to the ejector block can stretch into the stripper plate, and when the protrusion of the ejector block is staggered with the groove of the push plate, the lower end of the punch opposite to the ejector block stretches out of the stripper plate. Punching of stator and rotor punching sheets of different groove types can be achieved, cost can be reduced, and efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor punching sheet processing, and in particular to a motor stator and rotor punching sheet combined stamping die and a use method thereof. Background Art

[0002] The high-speed single-slot punching process for core punching sheets is a conventional process for motor manufacturing companies. In order to process and prepare motor stator punching sheets and motor rotor punching sheets, in general, the center hole of the ring sheet after "one drop and two" is used for positioning. First, a set of stator single punching dies are used to punch out the stator punching sheets and separate the rotor ring sheets, and then another set of rotor single punching dies are used to punch out the rotor punching sheets.

[0003] At present, in order to realize the processing and preparation of motor stator and rotor punching sheets, two sets of single punching dies, namely stator single punching dies and rotor single punching dies, need to be installed and used. The processing and preparation of motor stator and rotor punching sheets requires two devices to install two sets of single punching dies respectively or to be realized by disassembling and assembling two sets of single punching dies on one device. The equipment cost is high, and the equipment utilization rate and processing efficiency are low. Moreover, since the motor stator punching sheets and the motor rotor punching sheets are stamped independently, the actual processing requires two times of placing and taking out the sheets, which further reduces the processing efficiency and equipment utilization rate. In addition, the existing stator single punching dies and rotor single punching dies can only punch out a stator punching sheet with a fixed slot type and a rotor punching sheet with a fixed slot type, which can only meet the needs of a single series of motor products. When stator punching sheets and rotor punching sheets with different slot types need to be processed and prepared, another stator single punching die and rotor single punching die are required. Summary of the invention

[0004] In order to solve part or all of the technical problems existing in the above-mentioned prior art, the present invention provides a motor stator and rotor punching combined stamping die and a use method thereof.

[0005] The technical solution of the present invention is as follows: In a first aspect, a combined stamping die for a motor stator and rotor punching sheet is provided, comprising an upper die base, an upper pad, a clamping plate, a punch, a stripper plate, a die and a lower die base arranged in sequence from top to bottom; The upper die base is connected to the lower die base via a guide mechanism, and the upper die base can move up and down along the guide mechanism; The punch comprises a first stator punch, a second stator punch, a first rotor punch, a second rotor punch and a separation punch; the clamping plate, the stripping plate and the die are all provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole; the first stator punch can be mounted on the clamping plate movably up and down, and the upper and lower parts of the first stator punch are respectively located at the first stator punch holes on the clamping plate and the stripping plate; the second stator punch can be mounted on the clamping plate movably up and down, and the upper and lower parts of the second stator punch are respectively located at the first stator punch holes on the clamping plate and the stripping plate; The first rotor punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the first rotor punch are respectively located on the clamping plate and the first rotor punch holes on the stripping plate, the second rotor punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the second rotor punch are respectively located on the clamping plate and the second rotor punch holes on the stripping plate, the separation punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the separation punch are respectively located on the clamping plate and the separation punch holes on the stripping plate; The upper pad is provided with a first top block hole, a second top block hole, a third top block hole, a fourth top block hole and a fifth top block hole at positions opposite to the first stator punch hole, the second stator punch hole, the first rotor punch hole, the second rotor punch hole and the separation punch hole of the clamping plate, respectively, and a first slide groove, a second slide groove and a third slide groove are also provided on the upper pad, the first slide groove is located above the first top block hole, the second slide groove is located above the third top block hole, and the third slide groove is located above the second top block hole, the fourth top block hole and the fifth top block hole, and the first slide groove, the second slide groove and the third slide groove are respectively slidably arranged on A first push plate, a second push plate and a third push plate are provided, and a first top block, a second top block, a third top block, a fourth top block and a fifth top block are respectively installed in the first top block hole, the second top block hole, the third top block hole, the fourth top block hole and the fifth top block hole, a protrusion is provided on the top surface of each top block, and a groove capable of cooperating with the protrusion is provided on the bottom surface of each push plate, when the protrusion of the top block cooperates with the groove of the push plate, the lower end of the punch corresponding to the top block can extend into the punch hole on the stripper plate, and when the protrusion of the top block is staggered with the groove of the push plate, the lower end of the punch corresponding to the top block extends out of the punch hole on the stripper plate; The bottom surface of the third push plate is provided with two grooves, and the two grooves of the third push plate can be matched with the protrusion of the second top block and the protrusion of the fifth top block at the same time. When one groove of the third push plate is matched with the protrusion of the fourth top block, the other groove of the third push plate is staggered with the protrusion of the second top block and the protrusion of the fifth top block; It also includes a driving mechanism, which is respectively connected to the first push plate, the second push plate and the third push plate, and is used to control the first push plate to move along the first slide groove, control the second push plate to move along the second slide groove, and control the third push plate to move along the third slide groove.

[0006] In some optional embodiments, the first stator punch, the second stator punch, the first rotor punch, the second rotor punch and the separation punch are all provided with annular grooves along the axial direction, each of the annular grooves partially extends into the punch hole of the clamping plate, and at least two limit plates are provided on the bottom surface of the clamping plate in the circumferential direction around the outer side of each annular groove, and one side wall of the limit plate is located in the annular groove.

[0007] In some optional embodiments, the limiting plate is connected to the bottom surface of the clamping plate by bolts.

[0008] In some optional embodiments, the guide mechanism includes a guide sleeve and a guide column; The guide sleeve is installed on the upper die seat; The guide post is installed on the lower die base, and the upper part of the guide post is passed through the guide sleeve.

[0009] In some optional embodiments, the guide mechanism includes two guide mechanisms, and the two guide mechanisms are respectively arranged on both sides of the upper mold base.

[0010] In some optional embodiments, the concave mold includes a concave mold plate and a lower pad; The lower pad is installed on the lower die base, the concave die plate is installed on the lower pad, and the concave die plate and the lower pad are both provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole.

[0011] In some optional embodiments, it further includes: a top material block and an elastic member; The ejector block is movably mounted on the separation punch hole of the die; The elastic member is mounted on the lower die base, and the upper end of the elastic member abuts against the ejecting block. The elastic member is used to provide an upward force to the ejecting block.

[0012] In some optional embodiments, the elastic member is a compression spring.

[0013] In some optional embodiments, the driving mechanism includes: a first cylinder, a second cylinder, and a third cylinder mounted on the upper die base; The first cylinder is connected to the first push plate and is used to control the first push plate to move along the first slide groove; The second cylinder is connected to the second push plate and is used to control the second push plate to move along the second slide groove; The third cylinder is connected to the third push plate and is used to control the third push plate to move along the third slide groove.

[0014] In a second aspect, a method for using the above-mentioned motor stator and rotor punching combined stamping die is also provided, comprising: Adjust the position of the first push plate on the first slide slot so that the groove of the first push plate matches with the protrusion of the first top block, adjust the position of the second push plate on the second slide slot so that the groove of the second push plate matches with the protrusion of the third top block, and adjust the position of the third push plate on the third slide slot so that the two grooves on the third push plate match with the protrusion of the second top block and the protrusion of the fifth top block at the same time; The upper die seat is controlled to move up and down, and the rotor slot of the rotor sheet is punched out by the second rotor punch. While the rotor slot is punched out by the second rotor punch, the position of the second push plate on the second slide slot is dynamically adjusted according to the actual arrangement and distribution of the rotor slots, so that the groove of the second push plate and the protrusion of the third top block are dynamically switched between the matching and staggered states; After the rotor slot of the rotor punching sheet is punched, the position of the third push plate on the third slide slot is adjusted so that a groove on the third push plate matches with the protrusion of the third top block, and the groove on the third push plate is staggered with the protrusion of the second top block and the protrusion of the fifth top block respectively; The upper die seat is controlled to move up and down, and the second stator punch is used to punch the stator slots of the stator punching sheet. While the second stator punch is used to punch the stator slots, the position of the first push plate on the first slide slot is dynamically adjusted according to the stator slot arrangement and distribution method actually required, so that the groove of the first push plate and the protrusion of the first top block are dynamically switched between the two states of matching and staggered.

[0015] The main advantages of the technical solution of the present invention are as follows: The motor stator and rotor punching combined stamping die and the use method thereof of the present invention can realize the stamping of stator punchings and the stamping of rotor punchings, and the slot types of the stator punchings and the slot types of the rotor punchings are of two different types, the distribution of the stator slots on the stator punchings and the distribution of the rotor slots on the rotor punchings can be adjusted according to actual needs to meet the needs of different motor products, and can significantly reduce the processing cost of the stator and rotor punchings and significantly improve the processing efficiency of the stator and rotor punchings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A schematic structural diagram of a motor stator and rotor punching assembly stamping die provided by an embodiment of the present invention; Figure 2 for Figure 1 A top view of the drive mechanism and the push plate is also shown; Figure 3 for Figure 1 Schematic diagram of the structure of the middle and upper pad; Figure 4 for Figure 1 Schematic diagram of the connection and position relationship between the middle clamping plate and the punch; Figure 5 for Figure 1 Structural diagram of the middle guide mechanism; Figure 6 for Figure 1 Structural schematic diagram of the middle stripping plate; Figure 7 for Figure 1 Schematic diagram of the structure of the concave template; Figure 8 for Figure 1 Structural diagram of the middle and lower pads; Fig. 9 for Figure 1 Structural diagram of the middle and lower die base Fig.10 A schematic diagram of the relative position relationship between the push plate and the punch provided in an embodiment of the present invention; Fig.11 The present invention is a flowchart of a method for using a motor stator and rotor punching assembly stamping die according to an embodiment of the present invention.

[0017] Description of reference numerals: 1- Upper die seat; 2-upper pad, 201-first top block hole, 202-second top block hole, 203-third top block hole, 204-fourth top block hole, 205-fifth top block hole, 206-first slide groove, 207-second slide groove, 208-third slide groove, 209-third top block, 210-fourth top block; 3-plywood, 301-limiting plate; 4-punch, 401-first stator punch, 402-second stator punch, 403-first rotor punch, 404-second rotor punch, 405-separation punch, 406-annular groove; 5- stripper plate; 6-concave die, 601-concave die plate, 602-lower plate; 7-lower die seat; 8-guide mechanism, 801-guide sleeve, 802-guide column; 9- first push plate; 10- second push plate; 11- third push plate; 12-top block; 13- elastic member; 14- first cylinder; 15 - second cylinder; 16- Third cylinder. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

[0020] refer to Figure 1-10 The embodiment of the present invention provides a motor stator and rotor punching combined stamping die, which includes an upper die base 1, an upper pad 2, a clamping plate 3, a punch 4, a stripper plate 5, a die 6 and a lower die base 7 arranged in sequence from top to bottom; The upper die base 1 is connected to the lower die base 7 via a guide mechanism 8, and the upper die base 1 can move up and down along the guide mechanism 8; The punch 4 includes a first stator punch 401, a second stator punch 402, a first rotor punch 403, a second rotor punch 404 and a separation punch 405. The clamping plate 3, the stripping plate 5 and the die 6 are all provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole. The first stator punch 401 can be movably mounted on the clamping plate 3 up and down, and the upper and lower parts of the first stator punch 401 are respectively located at the first stator punch holes on the clamping plate 3 and the stripping plate 5. The second stator punch 402 can be movably mounted on the clamping plate 3 up and down, and the second stator punch 402 The upper and lower parts are respectively located at the second stator punch holes on the clamping plate 3 and the stripping plate 5, the first rotor punch 403 is movably mounted on the clamping plate 3, and the upper and lower parts of the first rotor punch 403 are respectively located at the first rotor punch holes on the clamping plate 3 and the stripping plate 5, the second rotor punch 404 is movably mounted on the clamping plate 3, and the upper and lower parts of the second rotor punch 404 are respectively located at the second rotor punch holes on the clamping plate 3 and the stripping plate 5, the separation punch 405 is movably mounted on the clamping plate 3, and the upper and lower parts of the separation punch 405 are respectively located at the separation punch holes on the clamping plate 3 and the stripping plate 5; The upper pad 2 is provided with a first top block hole 201, a second top block hole 202, a third top block hole 203, a fourth top block hole 204 and a fifth top block hole 205 at positions opposite to the first stator punch hole, the second stator punch hole, the first rotor punch hole, the second rotor punch hole and the separation punch hole of the clamping plate 3, respectively. The upper pad 2 is also provided with a first slide groove 206, a second slide groove 207 and a third slide groove 208. The first slide groove 206 is located above the first top block hole 201, the second slide groove 207 is located above the third top block hole 203, and the third slide groove 208 is located above the second top block hole 202, the fourth top block hole 204 and the fifth top block hole 205. The first slide groove 206, the second slide groove 207 and the third slide groove 208 are located above the second top block hole 202, the fourth top block hole 204 and the fifth top block hole 205. 07 and the third slide groove 208 are respectively slidably mounted with the first push plate 9, the second push plate 10 and the third push plate 11, the first top block hole 201, the second top block hole 202, the third top block hole 203, the fourth top block hole 204 and the fifth top block hole 205 are respectively mounted with the first top block, the second top block, the third top block 209, the fourth top block 210 and the fifth top block, the top surface of each top block is provided with a protrusion, the bottom surface of each push plate is provided with a groove that can cooperate with the protrusion, when the protrusion of the top block cooperates with the groove of the push plate, the lower end of the punch corresponding to the top block can extend into the punch hole on the stripping plate 5, when the protrusion of the top block is staggered with the groove of the push plate, the lower end of the punch corresponding to the top block extends out of the punch hole on the stripping plate 5; The bottom surface of the third push plate 11 is provided with two grooves, and the two grooves of the third push plate 11 can cooperate with the protrusions of the second top block and the protrusions of the fifth top block at the same time. When one groove of the third push plate 11 cooperates with the protrusion of the fourth top block 210, the other groove of the third push plate 11 is staggered with the protrusions of the second top block and the protrusions of the fifth top block. It also includes a driving mechanism, which is respectively connected to the first push plate 9, the second push plate 10 and the third push plate 11, and is used to control the first push plate 9 to move along the first slide groove 206, control the second push plate 10 to move along the second slide groove 207, and control the third push plate 11 to move along the third slide groove 208.

[0021] Based on the above-defined structure, the motor stator and rotor punching combined stamping die provided in the embodiment of the present invention can realize both the stamping of stator punchings and the stamping of rotor punchings, and the slot types of the stator punchings and the rotor punchings are of two different types. The distribution of the stator slots on the stator punchings and the distribution of the rotor slots on the rotor punchings can be adjusted according to actual needs to meet the needs of different motor products, which can significantly reduce the processing cost of the stator and rotor punchings and significantly improve the processing efficiency of the stator and rotor punchings.

[0022] Specifically, when the motor stator and rotor punching combined stamping die provided by the embodiment of the present invention is used to stamp the stator and rotor punching sheets, the position of the first push plate 9 on the first slide groove 206 is first adjusted to make the groove of the first push plate 9 cooperate with the protrusion of the first top block, the position of the second push plate 10 on the second slide groove 207 is adjusted to make the groove of the second push plate 10 cooperate with the protrusion of the third top block 209, and the position of the third push plate 11 on the third slide groove 208 is adjusted to make the two grooves on the third push plate 11 cooperate with the protrusion of the second top block and the protrusion of the fifth top block at the same time. At this time, since the groove of the third push plate 11 is staggered with the protrusion of the fourth top block 210, the lower end of the second rotor punch 404 is ejected from the stripping plate 5; then the upper die base 1 is controlled to move up and down, and the second rotor punch 404 is used to punch the rotor groove of the rotor punching sheet. During punching, according to the actual rotor slot arrangement and distribution requirements, the position of the second push plate 10 on the second slide slot 207 is dynamically adjusted so that the groove of the second push plate 10 and the protrusion of the third top block 209 can dynamically switch between the matching and staggered states. When the groove of the second push plate 10 matches the protrusion of the third top block 209, the lower end of the corresponding first rotor punch 403 can extend into the stripping plate 5. When the upper die base 1 moves up and down, the first rotor punch 403 will not punch the rotor slot. When the groove of the second push plate 10 is staggered with the protrusion of the third top block 209, the lower end of the corresponding first rotor punch 403 is pushed out of the stripping plate 5. When the upper die base 1 moves up and down, the first rotor punch 403 will synchronously punch the rotor slot, thereby realizing the punching of rotor slots of two different slot types on the rotor punching sheet, and the arrangement and distribution of the rotor slots of the two slot types are adjustable.After completing the punching of the rotor slot of the rotor punching sheet, adjust the position of the third push plate 11 on the third slide groove 208 so that a groove on the third push plate 11 cooperates with the protrusion of the third top block 209, and the groove on the third push plate 11 is staggered with the protrusion of the second top block and the protrusion of the fifth top block respectively. At this time, since the groove of the third push plate 11 cooperates with the protrusion of the third top block 209, and the groove of the third push plate 11 is staggered with the protrusion of the second top block and the protrusion of the fifth top block, the lower end of the second rotor punch 404 can extend into the stripping plate 5, and the lower ends of the second stator punch 402 and the separation punch 405 are pushed out of the stripping plate 5; then control the upper die base 1 to move up and down, and use the second stator punch 402 to punch the stator slot of the stator punching sheet. While using the second stator punch 402 to punch the stator slot, according to the actual According to the required stator slot arrangement and distribution method, the position of the first push plate 9 on the first slide groove 206 is dynamically adjusted to enable the groove of the first push plate 9 and the protrusion of the first top block to dynamically switch between the matching and staggered states. When the groove of the first push plate 9 matches with the protrusion of the first top block, the lower end of the corresponding first stator punch 401 can extend into the stripping plate 5. When the upper die base 1 moves up and down, the first stator punch 401 will not punch the stator slot. When the groove of the first push plate 9 is staggered with the protrusion of the first top block, the lower end of the corresponding first stator punch 401 is pushed out of the stripping plate 5. When the upper die base 1 moves up and down, the first stator punch 401 will synchronously punch the stator slot, thereby realizing the punching of two stator slots of different slot types on the stator punching sheet, and the arrangement and distribution method of the stator slots of the two slot types is adjustable.

[0023] refer to Figure 1 and Figure 4 Furthermore, in an optional implementation of the embodiment of the present invention, the first stator punch 401, the second stator punch 402, the first rotor punch 403, the second rotor punch 404 and the separation punch 405 are all provided with annular grooves 406 along the axial direction, each annular groove 406 partially extends into the punch hole of the clamping plate 3, and at least two limiting plates 301 are provided on the bottom surface of the clamping plate 3 in the circumferential direction around the outer side of each annular groove 406, and a side wall of the limiting plate 301 is located in the annular groove 406.

[0024] In the embodiment of the present invention, an annular groove 406 is provided on the punch, and a limiting plate 301 is installed on the clamp 3 to limit the annular groove 406 of the punch, so that the punch can be moved up and down on the clamp 3 and the punch can be prevented from getting stuck or falling out when moving.

[0025] Furthermore, in the embodiment of the present invention, the limiting plate 301 is connected to the bottom surface of the clamping plate 3 by bolts.

[0026] In the embodiment of the present invention, the limit plate 301 is connected and fixed by bolt connection, which can facilitate the disassembly and assembly of the limit plate 301 and the subsequent replacement of the punch.

[0027] refer to Figure 5 , further, in an optional implementation of the embodiment of the present invention, the guide mechanism 8 includes a guide sleeve 801 and a guide column 802; The guide sleeve 801 is installed on the upper die base 1; The guide post 802 is installed on the lower die base 7 , and the upper portion of the guide post 802 is passed through the guide sleeve 801 .

[0028] In the embodiment of the present invention, by providing the above-mentioned guide mechanism 8, the up and down movement of the upper die seat 1 can be guided to ensure the movement accuracy of the upper die seat, thereby ensuring the punching accuracy of the stator and rotor punching sheets.

[0029] Furthermore, in the embodiment of the present invention, the guide mechanisms 8 include two, and the two guide mechanisms 8 are respectively arranged on both sides of the upper mold base 1 .

[0030] Such an arrangement can further improve the stability of the upper die base 1 in the up and down movement.

[0031] refer to Figure 1 and Figure 7-8 , further, in an optional implementation of the embodiment of the present invention, the concave mold 6 includes a concave mold plate 601 and a bottom plate 602; The lower pad 602 is installed on the lower die base 7, and the concave die plate 601 is installed on the lower pad 602. The concave die plate 601 and the lower pad 602 are both provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole.

[0032] In the embodiment of the present invention, by providing the concave plate 601 and the lower pad 602, it is possible to facilitate the disassembly and assembly of the concave die 6, and to facilitate the subsequent replacement of the concave die 6 after replacing a different type of punch.

[0033] Furthermore, in the embodiment of the present invention, the stamping die further comprises: a top block 12 and an elastic member 13; The ejector block 12 is mounted on the separation punch hole of the die 6 so as to be movable up and down; The elastic member 13 is mounted on the lower die base 7 , and the upper end of the elastic member 13 abuts against the ejection block 12 . The elastic member 13 is used to provide an upward force to the ejection block 12 .

[0034] In the embodiment of the present invention, by providing the ejector block 12 and the elastic member 13, the ejector block 12 and the elastic member 13 can cooperate with the stripper plate 5 to prevent the punching sheet from being retained or deformed in the mold during the punching process.

[0035] Furthermore, in the embodiment of the present invention, the elastic member 13 is a compression spring.

[0036] refer to Figure 2 , further, in an optional implementation of the embodiment of the present invention, the driving mechanism includes: a first cylinder 14, a second cylinder 15 and a third cylinder 16 installed on the upper die base 1; The first cylinder 14 is connected to the first push plate 9 and is used to control the first push plate 9 to move along the first slide groove 206; The second cylinder 15 is connected to the second push plate 10 and is used to control the second push plate 10 to move along the second slide groove 207; The third cylinder 16 is connected to the third push plate 11 and is used to control the third push plate 11 to move along the third sliding groove 208 .

[0037] In the embodiment of the present invention, three cylinders are provided to respectively connect and control the three push plates, so that both independent control of the three push plates and rapid adjustment of the positions of the push plates can be achieved.

[0038] refer to Fig.11 In a second aspect, an embodiment of the present invention further provides a method for using the above-mentioned motor stator and rotor punching combined stamping die, the method comprising the following steps: Adjust the position of the first push plate 9 on the first slide groove 206 so that the groove of the first push plate 9 matches with the protrusion of the first top block, adjust the position of the second push plate 10 on the second slide groove 207 so that the groove of the second push plate 10 matches with the protrusion of the third top block 209, and adjust the position of the third push plate 11 on the third slide groove 208 so that the two grooves on the third push plate 11 match with the protrusion of the second top block and the protrusion of the fifth top block at the same time; The upper die base 1 is controlled to move up and down, and the rotor slot of the rotor sheet is punched by the second rotor punch 404. While the rotor slot is punched by the second rotor punch 404, the position of the second push plate 10 on the second slide slot 207 is dynamically adjusted according to the actual rotor slot arrangement and distribution mode required, so that the groove of the second push plate 10 and the protrusion of the third top block 209 are dynamically switched between the matching and staggered states; After the rotor slots of the rotor sheet are punched, the position of the third push plate 11 on the third slide slot 208 is adjusted so that a groove on the third push plate 11 matches with the protrusion of the third top block 209, and the groove on the third push plate 11 is staggered with the protrusion of the second top block and the protrusion of the fifth top block respectively; The upper die base 1 is controlled to move up and down, and the second stator punch 402 is used to punch the stator slots of the stator punching sheet. While the stator slots are punched by the second stator punch 402, the position of the first push plate 9 on the first slide groove 206 is dynamically adjusted according to the stator slot arrangement and distribution method actually required, so that the groove of the first push plate 9 and the protrusion of the first top block can be dynamically switched between the two states of matching and staggered.

[0039] In the embodiment of the present invention, by using the motor stator and rotor punching combined stamping die for stamping in the above-mentioned method, both the stator punching and the rotor punching can be realized, and the distribution of the stator slots on the stator punching and the distribution of the rotor slots on the rotor punching can be adjusted according to actual needs to meet the needs of different motor products, which can significantly reduce the processing cost of the stator and rotor punching and significantly improve the processing efficiency of the stator and rotor punching.

[0040] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A motor stator and rotor punching combined stamping die, characterized in that: It includes an upper die base, an upper pad, a clamping plate, a punch, a stripper plate, a die and a lower die base which are arranged in sequence from top to bottom; The upper die base is connected to the lower die base via a guide mechanism, and the upper die base can move up and down along the guide mechanism; The punch comprises a first stator punch, a second stator punch, a first rotor punch, a second rotor punch and a separation punch; the clamping plate, the stripping plate and the die are all provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole; the first stator punch can be mounted on the clamping plate movably up and down, and the upper and lower parts of the first stator punch are respectively located at the first stator punch holes on the clamping plate and the stripping plate; the second stator punch can be mounted on the clamping plate movably up and down, and the upper and lower parts of the second stator punch are respectively located at the first stator punch holes on the clamping plate and the stripping plate; The first rotor punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the first rotor punch are respectively located on the clamping plate and the first rotor punch holes on the stripping plate, the second rotor punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the second rotor punch are respectively located on the clamping plate and the second rotor punch holes on the stripping plate, the separation punch is mounted on the clamping plate so as to be movably mounted up and down, and the upper and lower parts of the separation punch are respectively located on the clamping plate and the separation punch holes on the stripping plate; The upper pad is provided with a first top block hole, a second top block hole, a third top block hole, a fourth top block hole and a fifth top block hole at positions opposite to the first stator punch hole, the second stator punch hole, the first rotor punch hole, the second rotor punch hole and the separation punch hole of the clamping plate, respectively, and a first slide groove, a second slide groove and a third slide groove are also provided on the upper pad, the first slide groove is located above the first top block hole, the second slide groove is located above the third top block hole, and the third slide groove is located above the second top block hole, the fourth top block hole and the fifth top block hole, and the first slide groove, the second slide groove and the third slide groove are respectively slidably arranged on A first push plate, a second push plate and a third push plate are provided, and a first top block, a second top block, a third top block, a fourth top block and a fifth top block are respectively installed in the first top block hole, the second top block hole, the third top block hole, the fourth top block hole and the fifth top block hole, a protrusion is provided on the top surface of each top block, and a groove capable of cooperating with the protrusion is provided on the bottom surface of each push plate, when the protrusion of the top block cooperates with the groove of the push plate, the lower end of the punch corresponding to the top block can extend into the punch hole on the stripper plate, and when the protrusion of the top block is staggered with the groove of the push plate, the lower end of the punch corresponding to the top block extends out of the punch hole on the stripper plate; The bottom surface of the third push plate is provided with two grooves, and the two grooves of the third push plate can be matched with the protrusion of the second top block and the protrusion of the fifth top block at the same time. When one groove of the third push plate is matched with the protrusion of the fourth top block, the other groove of the third push plate is staggered with the protrusion of the second top block and the protrusion of the fifth top block; It also includes a driving mechanism, which is respectively connected to the first push plate, the second push plate and the third push plate, and is used to control the first push plate to move along the first slide groove, control the second push plate to move along the second slide groove, and control the third push plate to move along the third slide groove.

2. The motor stator and rotor punching combined stamping die according to claim 1, characterized in that: The first stator punch, the second stator punch, the first rotor punch, the second rotor punch and the separation punch are all provided with annular grooves along the axial direction, each of the annular grooves partially extends into the punch hole of the clamping plate, and at least two limiting plates are provided on the bottom surface of the clamping plate in the circumferential direction around the outer side of each annular groove, and one side wall of the limiting plate is located in the annular groove.

3. The motor stator and rotor punching combined stamping die according to claim 2, characterized in that: The limiting plate is connected to the bottom surface of the clamping plate by bolts.

4. The motor stator and rotor punching combined stamping die according to claim 1, characterized in that: The guide mechanism comprises a guide sleeve and a guide post; The guide sleeve is installed on the upper die seat; The guide post is installed on the lower die base, and the upper part of the guide post is passed through the guide sleeve.

5. The motor stator and rotor punching combined stamping die according to claim 4, characterized in that: The guide mechanisms include two, and the two guide mechanisms are respectively arranged on both sides of the upper die seat.

6. The motor stator and rotor punching combined stamping die according to claim 1, characterized in that: The concave mold includes a concave mold plate and a lower pad; The lower pad is installed on the lower die base, the concave die plate is installed on the lower pad, and the concave die plate and the lower pad are both provided with a first stator punch hole, a second stator punch hole, a first rotor punch hole, a second rotor punch hole and a separation punch hole.

7. The motor stator and rotor punching combined stamping die according to claim 1 or 6, characterized in that: Also includes: Ejector blocks and elastic members; The ejector block is movably mounted on the separation punch hole of the die; The elastic member is mounted on the lower die base, and the upper end of the elastic member abuts against the ejecting block. The elastic member is used to provide an upward force to the ejecting block.

8. The motor stator and rotor punching combined stamping die according to claim 7, characterized in that: The elastic member is a compression spring.

9. The motor stator and rotor punching combined stamping die according to claim 1, characterized in that: The driving mechanism comprises: a first cylinder, a second cylinder and a third cylinder installed on the upper die base; The first cylinder is connected to the first push plate and is used to control the first push plate to move along the first slide groove; The second cylinder is connected to the second push plate and is used to control the second push plate to move along the second slide groove; The third cylinder is connected to the third push plate and is used to control the third push plate to move along the third slide groove.

10. A method for using the motor stator and rotor punching combined stamping die according to any one of claims 1 to 9, characterized in that: include: Adjust the position of the first push plate on the first slide slot so that the groove of the first push plate matches with the protrusion of the first top block, adjust the position of the second push plate on the second slide slot so that the groove of the second push plate matches with the protrusion of the third top block, and adjust the position of the third push plate on the third slide slot so that the two grooves on the third push plate match with the protrusion of the second top block and the protrusion of the fifth top block at the same time; The upper die seat is controlled to move up and down, and the rotor slot of the rotor sheet is punched out by the second rotor punch. While the rotor slot is punched out by the second rotor punch, the position of the second push plate on the second slide slot is dynamically adjusted according to the actual arrangement and distribution of the rotor slots, so that the groove of the second push plate and the protrusion of the third top block are dynamically switched between the matching and staggered states; After the rotor slot of the rotor punching sheet is punched, the position of the third push plate on the third slide slot is adjusted so that a groove on the third push plate matches with the protrusion of the third top block, and the groove on the third push plate is staggered with the protrusion of the second top block and the protrusion of the fifth top block respectively; The upper die seat is controlled to move up and down, and the second stator punch is used to punch the stator slots of the stator punching sheet. While the second stator punch is used to punch the stator slots, the position of the first push plate on the first slide slot is dynamically adjusted according to the stator slot arrangement and distribution method actually required, so that the groove of the first push plate and the protrusion of the first top block are dynamically switched between the two states of matching and staggered.

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