Double-row high-speed progressive stamping die for stators and rotors of automobile driving motors

Abstract

The utility model discloses a double-row high-speed progressive stamping die for stators and rotors of automobile driving motors. The double-row high-speed progressive stamping die comprises a die body. The device further comprises an auxiliary working table plate and a mold fixing plate. The die body is of a sectional structure and consists of a front-section die and a rear-section die; the front-section mold and the rear-section mold are fixedly mounted on the auxiliary working table plate; the auxiliary working table plate is mounted on the mold fixing plate; positioning guide holes are formed in the front section mold and the rear section mold; a positioning guide column is arranged on the auxiliary working table plate; a plurality of machining forming areas are arranged on the die body, each machining forming area is used for machining one procedure, two same machining stations are arranged in each machining forming area, and the two machining stations are arranged in a staggered mode. According to the utility model, the utilization efficiency of material entering the die is improved, the defect that the machining length of the existing die body is limited is overcome, and the requirement of progressive punching of multiple stations of stators and rotors of automobile driving motors is met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile drive motor processing, and particularly relates to a double-row high-speed stamping progressive die for an automobile drive motor stator and rotor. Background Art

[0002] A motor is a commonly used device in modern industrial production and life, generally composed of multiple components such as a stator, a rotor, and a housing. Among them, the assembly of the stator and the rotor is generally completed by stamping. A stamping die is an essential process equipment for stamping production and is a technology-intensive product. Stamping dies can be roughly divided into three categories, namely single-operation dies, progressive dies, and compound dies.

[0003] The progressive die has the highest production efficiency among these three types of dies. A progressive die is composed of multiple stations, and each station is sequentially associated to complete different processes, and a series of different stamping processes are completed in one stroke of the punching press. After one stroke is completed, the material is moved forward by a fixed pitch by the feeding machine of the punching press, so that multiple processes can be completed on a set of dies.

[0004] The energy-saving characteristics of the double-row progressive die are becoming more prominent, and the production is doubled. The existing double-row progressive die has the following disadvantages: limited by the die manufacturing process, the double-row die can only produce products with a relatively small outer diameter of the product, the outer diameter of the product is less than 150 mm, and the die length is less than 2700 mm; while the outer diameter of the automobile drive motor is 220 mm, and the die length is about 3500 mm. The existing die body is integrally arranged, and the processing length is limited, which cannot meet the processing requirements of the automobile drive motor stator and rotor. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a double-row high-speed stamping progressive die for an automobile drive motor stator and rotor, improve the utilization efficiency of the incoming die material, and meet the requirements of the multi-station progressive stamping of the automobile drive motor stator and rotor.

[0006] To solve the above technical problem, the utility model adopts the following technical solution: A double-row high-speed stamping progressive die for an automobile drive motor stator and rotor further includes a sub-workbench plate and a die fixing plate; the die body is of a segmented structure and is composed of a front-stage die and a rear-stage die; the front-stage die and the rear-stage die are fixedly installed on the sub-workbench plate; the sub-workbench plate is installed on the die fixing plate; positioning and guiding holes are provided on the front-stage die and the rear-stage die; positioning and guiding columns are provided on the sub-workbench plate; a number of processing and forming areas are provided on the die body, each processing and forming area is used for processing one process, and two identical processing stations are provided in each processing and forming area, and the two processing stations are arranged staggeredly.

[0007] Further, the several processing and forming areas sequentially include a first pilot hole stamping area, a rotor groove forming area, a rotor stack riveting pre-hole forming area, a rotor counting area, a rotor stack riveting processing area, a rotor center hole forming area, a second pilot hole stamping area, a rotor blanking area, a stator groove forming area, a stator counting area, a stator air gap processing area, a stator stack riveting processing area, a stator blanking area, and a material cutting area.

[0008] Further, the two processing stations in each processing and forming area are staggered by 60°.

[0009] Further, a guiding mechanism is provided on the mold fixing plate; the guiding mechanism includes guiding columns; a row of guiding columns is provided on both sides of the mold fixing plate; the bottom of the guiding column is rotatably connected to the mold fixing plate; an arc-shaped limiting groove is provided on the guiding column; the guiding column is an elastic telescopic column.

[0010] Further, a row of guiding columns is installed on one side of the mold fixing plate, and an adjusting block is installed on the other side, with a row of guiding columns on the adjusting block; the adjusting block is slidably connected to the mold fixing plate and is adjusted by an adjusting bolt.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1) By setting a secondary workbench plate, the mold body is processed in two sections. The front-section mold and the rear-section mold set separately are fixed on the secondary workbench plate to form the mold body, reducing the manufacturing difficulty of the mold body, facilitating transportation, and being assembled and installed on the secondary workbench plate after splicing, increasing the length of the mold, meeting the requirements of multi-station processing of the stator and rotor of the automotive drive motor. The length of the mold can reach about 3500 mm, and the design and arrangement of the processing stations for the stator and rotor of the drive motor in the mold are more reasonable.

[0013] 2) The progressive die for the stator and rotor of the automotive drive motor of the present utility model improves the production efficiency by setting two processing stations in each processing and forming area. The two rows of processing stations are staggered, which can not only meet the requirement of increasing the outer diameter of the processed product, but also improve the utilization rate of the incoming mold material, avoid waste of raw materials, and reduce production costs.

[0014] 3) The guiding mechanism provided by the present utility model ensures more stable feeding of the sheet material. One row of guiding columns is fixed, and the other row can be adjusted through an adjusting plate to adapt to the situation of large width error of the material. Description of the Drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2Schematic diagram of the adjusting column installation. Specific embodiments

[0018] The technical solutions of the present utility model will be clearly and completely described below through specific embodiments. Embodiment 1

[0019] Reference Figure 1 And Figure 2 A progressive die for double-row high-speed stamping of the stator and rotor of an automotive drive motor in this embodiment includes a die body 1; it also includes a sub-workbench plate 2 and a die fixing plate 3.

[0020] The die body 1 of this embodiment is a segmented structure, composed of a front die 31 and a rear die 32. Since the progressive die for the stator and rotor of an automotive drive motor has many processing steps and is about 3500 mm long, in order to reduce the manufacturing difficulty of the die body and facilitate transportation, the die body is set in two sections in this embodiment. The front die 31 and the rear die 32 after segmented setting are assembled and then fixedly installed on the sub-workbench plate 2; the sub-workbench plate 2 is installed on the die fixing plate 3, which can meet the requirements of multiple working positions for the processing of the stator and rotor of the automotive drive motor. After the die body is segmented, the length of the die body can be increased, and empty steps are reasonably set on the die body, making the arrangement of the processing positions more reasonable.

[0021] Positioning and guiding holes are provided on the front die 31 and the rear die 32 of this embodiment; positioning and guiding columns are provided on the sub-workbench plate 2 to improve the processing accuracy.

[0022] A number of processing and forming areas are provided on the die body 1 of this embodiment. Each processing and forming area is used to process one process, and two identical processing positions are provided in each processing and forming area. The two processing positions are arranged staggeredly by 60°.

[0023] The progressive die for the stator and rotor of the automotive drive motor improves the production efficiency through the two processing positions in each processing and forming area. The two rows of processing positions are arranged staggeredly by 60°, which can not only meet the requirement of the increased outer diameter of the processed product, but also improve the utilization rate of the incoming die material, avoid waste of raw materials, and reduce production costs.

[0024] The several processing and forming areas in this embodiment sequentially include a first pilot hole punching area, a rotor slot forming area, a rotor stack riveting pre-hole forming area, a rotor counting area, a rotor stack riveting processing area, a rotor center hole forming area, a second pilot hole punching area, a rotor blanking area, a stator slot forming area, a stator counting area, a stator air gap processing area, a stator stack riveting processing area, a stator blanking area, and a material cutting area.

[0025] In this embodiment, after the raw materials are placed on the mold, the raw materials move forward under the push of the material plate. When starting production, the raw materials sequentially pass through the guide hole stamping area 1, the rotor groove forming area, the rotor stacking riveting pre-hole forming area, the rotor counting area, the rotor stacking riveting processing area, the rotor center hole forming area, the guide hole stamping area 2, the rotor blanking area, the stator groove forming area, the stator counting area, the stator air gap processing area, the stator stacking riveting processing area, the stator blanking area and the material cutting area. Finally, the remaining waste materials are cut in the material cutting area. Embodiment 2

[0026] In this embodiment, a guiding mechanism is provided on the basis of Embodiment 1. A guiding mechanism is provided on the mold fixing plate 3; the guiding mechanism includes guiding columns 4; a row of guiding columns 4 are provided on both sides of the mold fixing plate 3; the bottom of the guiding column is rotatably connected to the mold fixing plate 3; an arc-shaped limiting groove 41 is provided on the guiding column 4; the guiding column is an elastic telescopic column.

[0027] A row of guiding columns 4 are installed on one side of the mold fixing plate 3, and an adjusting block 5 is installed on the other side. A row of guiding columns 4 are on the adjusting block 5; the adjusting block 5 is slidably connected to the mold fixing plate 3 and is adjusted by an adjusting bolt 6. In this embodiment, the adjusting bolt 6 is screwed to the adjusting block 5, and the end of the stud of the adjusting bolt is rotatably connected to the mold fixing plate 3.

[0028] The guiding mechanism provided in this embodiment ensures more stable feeding of the sheet material, resulting in higher processing accuracy. The distance between the guiding columns of the guiding mechanism is adjustable. A suitable distance can be maintained between the material plate and the guiding groove to avoid feeding blockage.

[0029] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention. Such modifications or equivalent replacements should also be regarded as falling within the protection scope of the technical solution of the present invention.

Claims

1. A double-row high-speed stamping progressive die for the stator and rotor of an automotive drive motor, comprising a die body (1); characterized in that: It also includes a sub-workbench plate (2) and a die fixing plate (3); the die body (1) is a segmented structure, composed of a front-stage die (31) and a rear-stage die (32); the front-stage die (31) and the rear-stage die (32) are fixedly installed on the sub-workbench plate (2); the sub-workbench plate (2) is installed on the die fixing plate (3); positioning and guiding holes are provided on the front-stage die (31) and the rear-stage die (32); positioning and guiding columns are provided on the sub-workbench plate (2); a number of processing and forming areas are provided on the die body (1), each processing and forming area is used for processing one process, and two identical processing stations are provided in each processing and forming area, and the two processing stations are staggeredly arranged.

2. The stator and rotor double-row high-speed stamping progressive die for an automotive drive motor according to claim 1, wherein: The number of processing and forming areas successively includes a first pilot hole stamping area, a rotor slot forming area, a rotor stack riveting pre-hole forming area, a rotor counting area, a rotor stack riveting processing area, a rotor center hole forming area, a second pilot hole stamping area, a rotor blanking area, a stator slot forming area, a stator counting area, a stator air gap processing area, a stator stack riveting processing area, a stator blanking area, and a blanking area.

3. A progressive die for high-speed stamping of the stator and rotor of an automotive drive motor according to claim 1, characterized in that: The two processing stations in each processing and forming area are staggeredly arranged by 60°.

4. A progressive die for high-speed stamping of the stator and rotor of an automotive drive motor according to claim 1, characterized in that: A guiding mechanism is provided on the die fixing plate (3); the guiding mechanism includes a guiding column (4); a row of guiding columns (4) are provided on both sides of the die fixing plate (3); the bottom of the guiding column is rotatably connected to the die fixing plate (3); a limiting groove (41) is provided on the guiding column; the guiding column is an elastic telescopic column.

5. A progressive stamping die for the stator and rotor of an automotive drive motor, as claimed in claim 1, wherein: A row of guiding columns (4) are installed on one side of the die fixing plate (3), and an adjusting block (5) is installed on the other side, and a row of guiding columns (4) are provided on the adjusting block (5); the adjusting block (5) is slidably connected to the die fixing plate (3) and is adjusted by an adjusting bolt (6).

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