Motor lamination precise layering stamping device and using method

Abstract

The application discloses a motor punching sheet accurate layering stamping device and method, a layering mechanism is arranged in a blanking channel below a motor punching sheet, the layering mechanism has multiple groups, each group of the layering mechanism corresponds to a type of motor punching sheet, according to stamping different types of motor punching sheets, one group of the layering mechanism is extended into the blanking channel, so that a motor punching sheet of a matching type passes through, after reaching a set type and quantity requirement, the group of the layering mechanism is retracted out of the blanking channel, so that the motor punching sheet of the type falls to a material receiving device under the action of gravity, and once different types of motor punching sheets on the material receiving device are stacked up according to the quantity and type to form a stator core and are conveyed to a specified position by a conveying mechanism. The device and method can make the motor punching sheets meeting the set requirements fall and prevent the motor punching sheets not meeting the set requirements from falling, so that the accurate layering of different punching sheets can be realized.

Description

Technical Field

[0001] This invention relates to the field of stamping technology, specifically to a precise layered stamping device for motor laminations and its usage method. Background Technology

[0002] The stator core of an electric motor is composed of many laminations. There are several types of laminations, such as... Figure 1 For the first motor lamination, Figure 2 For the second motor lamination, Figure 3 The third motor lamination, depending on the stator core requirements, can be composed of multiple first motor laminations, second motor laminations, and third motor laminations stacked in different quantities and arrangements. Currently, during stamping, some stamping equipment is used to stack the laminations according to the number of blanks, but the accuracy is poor, making precise counting impossible. Often, the laminations are not stacked according to the set count, resulting in the stator core failing to meet technical requirements. Another method is manual selection and assembly, but this is too inefficient and can also lead to improper stacking and assembly due to the similar structures of the three motor laminations. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a motor lamination precise layering stamping device and method that uses a layering mechanism to allow motor laminations that meet set requirements to fall and prevent motor laminations that do not meet set requirements from falling, thereby achieving precise layering of different laminations, and realizing mechanized layering with high efficiency.

[0004] The technical solution of this invention is to provide a precise layered stamping device for motor laminations with the following structure: a layering mechanism is provided in the material feeding channel below the stamped motor laminations; the stamped motor laminations enter the receiving device through the layering mechanism; there are multiple sets of layering mechanisms, each set corresponding to a type of motor lamination; according to the different types of motor laminations being stamped, one set of layering mechanisms extends into the material feeding channel, allowing a matching type of motor lamination to pass through; after the set type and quantity requirements are met, the set of layering mechanisms retracts out of the material feeding channel, allowing the motor lamination of that type to fall into the receiving device under its own weight; the different types of motor laminations on the receiving device are stacked according to quantity and type to form a stator core, which is then conveyed to a designated position by a transmission mechanism.

[0005] The present invention relates to a precision layered stamping device for motor laminations, comprising a lower die pad, a lower die, and a die fixing plate sequentially arranged on a punch press table. The die fixing plate contains a die, and the lower die contains a locking base. A first channel, a second channel, and a third channel are provided between the bottom surface of the locking base and the inner end face of the countersunk hole of the lower die. The first, second, and third channels are respectively provided with a first segmented piece, a second segmented piece, and a third segmented piece. These segments are located on the same plane and extend outwards under the push of a driving mechanism at their respective tail ends. A coaxial central hole is provided at the center of the lower die pad, lower die, die fixing plate, die, and locking base. A lifting mechanism and a transmission mechanism are provided within the central hole.

[0006] When forming the first motor lamination, the first segment extends, and the first notch of the first motor lamination can pass through the front end of the extended first segment and fall into the lifting mechanism. At this time, the second motor lamination and the third motor lamination cannot fall. When forming the second motor lamination, the second segment extends, and the second notch of the second motor lamination can pass through the front end of the extended second segment and fall into the lifting mechanism. At this time, the first motor lamination and the third motor lamination cannot fall. When forming the third motor lamination, the third segment extends, and the third notch of the third motor lamination can pass through the front end of the extended first segment and fall into the lifting mechanism. At this time, the first motor lamination and the second motor lamination cannot fall.

[0007] The lifting mechanism includes a lifting column and a receiving tray; the receiving tray is located at the top of the lifting column and below the die, and the lifting column is located inside the central hole and moves up and down along the axis of the central hole.

[0008] The transmission mechanism includes a slider, multiple positioning rods, and a guide rail. The slider is located at the bottom of the receiving tray, and all the positioning rods are located at the top of the slider. The motor lamination for punching and unloading is internally positioned outside the positioning ring of the receiving tray, and its outer ring is positioned inside the multiple positioning rods. The slider slides laterally on the guide rail, and the motor lamination positioned inside the multiple positioning rods is carried away by the slider. After the motor lamination is removed, the slider is finally reset to its initial position.

[0009] The slider has a U-shaped structure, and the receiving tray passes through the middle notch of the slider when it extends and retracts vertically.

[0010] The layering mechanism is a segmented piece. The inner diameter of the material feeding channel is larger than that of the motor stamping piece. When the segmented piece is not inserted into the material feeding channel, the motor stamping piece falls arbitrarily. When the segmented piece is inserted into the material feeding channel, the distance between the front end of the segmented piece and the inner wall of the material feeding channel is smaller than the diameter of the motor stamping piece, thereby preventing the motor stamping piece from falling.

[0011] The technical solution of the present invention is to provide a method for precise layering of motor laminations, comprising the following steps:

[0012] S1: Set the number of first motor laminations at the bottom to N1, the number of second motor laminations in the middle to N2, and the number of third motor laminations at the top to N3, forming a set of stator cores.

[0013] S2: Stamp the first motor lamination, extend the first segmented piece, and let the first notch of the first motor lamination pass through the front end of the extended first segmented piece and fall onto the receiving tray of the lifting mechanism. Stamp continuously and stack them in sequence to a quantity of N1 pieces; then retract the first segmented piece inward.

[0014] S3: Stamp the second motor punch, extend the second segment, and let the second notch of the second motor punch pass through the front end of the extended second segment and fall onto the receiving tray of the lifting mechanism. Continuously stamp and stack them on the first motor punch in sequence until the set number N2 pieces are reached; then retract the second segment inward.

[0015] S4: Stamp the third motor punch, extend the third segment, and let the third notch of the third motor punch pass through the front end of the extended third segment and fall onto the receiving tray of the lifting mechanism. Continuously stamp and stack them on the second motor punch in sequence until the set number N3 pieces are reached; then retract the third segment inward.

[0016] S5: The lifting mechanism descends, and at the same time the receiving tray moves downward, moving a stack of stator cores to the top of the slider and placing them within the annular circle formed by multiple positioning rods. The multiple positioning rods position the stator cores around their perimeter. Simultaneously, the receiving tray passes through the middle notch of the slider.

[0017] S6: The slider moves and moves the stator core in the multiple positioning rods to the designated position, and then resets to the initial position. At the same time, the lifting mechanism also resets to the initial position.

[0018] After adopting the above structure and scheme, the present invention has the following advantages: 1. Using a layering mechanism, different dividing pieces are inserted, causing the corresponding motor laminations to fall to the receiving tray. The number of pieces is controlled by the punch press program, ensuring that each type of motor lamination can be individually punched and accurately separated, thereby achieving the separation of different types of laminations such as the first motor lamination, second motor lamination, and third motor lamination. This enables precise layering of the laminations and achieves mechanized layering with high efficiency. 2. The layering mechanism consists of a first dividing piece, a second dividing piece, and a third dividing piece. This structure is convenient to install in the cavity of the lower die and occupies little space. 3. The dividing pieces have high support strength and can support multiple falling motor laminations, resulting in good reliability. 4. By utilizing the front end of the dividing piece of the layering mechanism and the notch of the matching motor lamination, when the notch matches the front end of the dividing piece, the corresponding motor lamination will fall; if they do not match, the motor lamination will be isolated and unable to fall. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the laminations for the first motor.

[0020] Figure 2 This is a schematic diagram of the laminations for the second motor.

[0021] Figure 3 This is a schematic diagram of the laminations for the third motor.

[0022] Figure 4 This is a cross-sectional view showing the laminations of the first motor above and the laminations of the second motor below, to separate them.

[0023] Figure 5 This is a top view diagram showing the laminations for the first motor above and the laminations for the second motor below, to separate them.

[0024] Figure 6 This is a cross-sectional view showing the second motor lamination above and the first motor lamination below, to separate them.

[0025] Figure 7 This is a top view diagram showing the laminations for the second motor above and the laminations for the first motor below, to separate them.

[0026] Figure 8 This is a cross-sectional view showing the laminations of the first motor above and the laminations of the third motor below, to separate them.

[0027] Figure 9 This is a top view diagram showing the laminations for the first motor above and the laminations for the third motor below, to separate them.

[0028] Figure 10 This is a three-dimensional schematic diagram of the precision layering stamping device for motor laminations according to the present invention.

[0029] Figure 11 This is a cross-sectional schematic diagram of the precision layering stamping device for motor laminations according to the present invention.

[0030] As shown in the figure,

[0031] 1. Lower die pad, 2. Lower die cavity, 3. Die cavity fixing plate, 4. Die cavity, 5. Locking base, 6. Lifting column, 7. Material receiving tray, 8. Slider, 9. Positioning rod, 10. Guide rail, 11. Dividing piece, 101. First motor lamination, 102. First notch, 201. Second motor lamination, 202. Second notch, 301. Third motor lamination, 302. Third notch. Detailed Implementation

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the first motor lamination 101, with a first notch 102 on the outer side wall.

[0034] Figure 2 This is a schematic diagram of the second motor lamination 201, which has a second notch 202 on its outer side wall.

[0035] Figure 3 This is a schematic diagram of the third motor lamination 301, which has a third notch 302 on its outer side wall.

[0036] This invention discloses a precision layered stamping device for motor laminations. A layering mechanism is provided in the material feeding channel below the stamped motor laminations. The stamped motor laminations enter a receiving device through the layering mechanism. There are multiple sets of layering mechanisms, each corresponding to a type of motor lamination. Depending on the type of motor lamination being stamped, one set of layering mechanisms extends into the material feeding channel, allowing a matching type of motor lamination to pass through. After reaching the set type and quantity requirements, this set of layering mechanisms retracts outside the material feeding channel, causing the motor lamination of that type to fall onto the receiving device under its own weight. Different types of motor laminations on the receiving device are stacked according to quantity and type to form a stator core, which is then conveyed to a designated position by a transmission mechanism.

[0037] like Figure 5 As shown, the present invention discloses a precision layered stamping device for motor laminations. The specific structure includes a lower die pad 1, a lower die 2, and a die fixing plate 3 sequentially arranged on the press table. A die 4 is provided within the die fixing plate 3, and a locking base 5 is provided within the lower die 2. A first channel, a second channel, and a third channel are provided between the bottom surface of the locking base 5 and the inner end face of the countersunk hole of the lower die 2. The first channel, second channel, and third channel are respectively provided with a first segmented piece, a second segmented piece, and a third segmented piece. The first segmented piece, second segmented piece, and third segmented piece are located on the same plane and extend out under the push of their respective tail-end driving mechanisms. A coaxial central hole is provided at the center of the lower die pad 1, lower die 2, die fixing plate 3, die 4, and locking base 5. A lifting mechanism and a transmission mechanism are provided within the central hole.

[0038] like Figure 4 and Figure 5 As shown, to isolate the first motor stamping 101 and the second motor stamping 102, there are multiple first motor stampings 101 on top and multiple second motor stampings 201 on the bottom. When forming the first motor stamping 101, the first dividing piece extends out, and the first notch of the first motor stamping 101 can pass through the front end of the extended first dividing piece and fall into the lifting mechanism. At this time, the second motor stampings 201 and the third motor stamping 301 cannot fall.

[0039] like Figure 6 and Figure 7As shown, to isolate the second motor stamping 102 and the first motor stamping 101, there are multiple second motor stampings 201 on top and multiple first motor stampings 101 on the bottom. When the second motor stamping 201 is formed, the second dividing piece extends out, and the second notch of the second motor stamping 201 can pass through the front end of the extended second dividing piece and fall into the lifting mechanism. At this time, the first motor stamping 101 and the third motor stamping 301 cannot fall.

[0040] like Figure 8 and Figure 9 As shown, to isolate the first motor lamination 101 and the third motor lamination 301, there are multiple first motor laminations 101 on top and multiple third motor laminations 301 on the bottom. When forming the third motor lamination 301, the third dividing piece extends out, and the third notch of the third motor lamination 301 can pass through the front end of the extended first dividing piece and fall into the lifting mechanism. At this time, the first motor lamination 101 and the second motor lamination 201 cannot fall.

[0041] like Figure 10 and Figure 11 As shown, the lifting mechanism includes a lifting column 6 and a receiving tray 7. The receiving tray 7 includes a circular base plate and two arc-shaped plates. The two arc-shaped plates are on the side wall of the same column and are symmetrical from left to right. They are not connected to each other. The tops of the two arc-shaped plates face radially inward, serving as a guide structure when the motor-driven punches fall. The receiving tray 7 is located on top of the lifting column 6 and below the die 4. The lifting column 6 is located inside the central hole and moves up and down along the axis of the central hole.

[0042] The transmission mechanism includes a slider 8, multiple positioning rods 9, and guide rails 10. The slider 8 is located at the bottom of the receiving tray 7, and all the positioning rods 9 are located at the top of the slider 8. The motor lamination for punching and unloading is internally positioned outside the positioning ring of the receiving tray 7, and its outer ring is positioned inside the multiple positioning rods 9. The slider 8 slides laterally on the guide rails 10, and the motor lamination positioned inside the multiple positioning rods 9 is carried away by the slider 8. After the motor lamination is removed, the slider 8 finally returns to its initial position. There are two guide rails 10, and the slider 8 slides between the two guide rails 10.

[0043] The slider 8 has a U-shaped structure, and the receiving tray 7 passes through the middle notch of the slider 8 when it extends and retracts vertically.

[0044] The layering mechanism is a segmented piece 11. The inner diameter of the material feeding channel is larger than that of the motor lamination. When the segmented piece 11 is not inserted into the material feeding channel, the motor lamination falls arbitrarily. When the segmented piece 11 is inserted into the material feeding channel, the distance between the front end of the segmented piece 11 and the inner wall of the material feeding channel is smaller than the diameter of the motor lamination, thereby preventing the motor lamination from falling.

[0045] The method of using the precision layering stamping device for motor laminations according to the present invention includes the following steps:

[0046] S1: Set the number of the first motor lamination 101 at the bottom to N1 pieces, the number of the second motor lamination 201 in the middle to N2 pieces, and the number of the third motor lamination 301 at the top to N3 pieces, forming a set of stator cores; during stamping, the number of pieces falling is controlled by the program to measure the number of pieces.

[0047] S2: Stamp the first motor punch 101, extend the first segment, and let the first notch of the first motor punch 101 pass through the front end of the extended first segment and fall onto the receiving tray 7 of the lifting mechanism. Stamp continuously and stack them in sequence to a quantity of N1 pieces; then retract the first segment inward.

[0048] S3: Stamp the second motor punch 201, extend the second segment, and let the second notch of the second motor punch 201 pass through the front end of the extended second segment and fall onto the receiving tray 7 of the lifting mechanism. Stamp continuously and stack them on the first motor punch 101 in sequence until the set number N2 pieces are reached; then retract the second segment inward.

[0049] S4: Stamp the third motor punch 301, extend the third segment, and let the third notch of the third motor punch 301 pass through the front end of the extended third segment and fall onto the receiving tray 7 of the lifting mechanism. Continuously stamp and stack them on the second motor punch 201 in sequence until the set number N3 pieces are reached; then retract the third segment.

[0050] S5: The lifting mechanism descends, and at the same time the receiving tray 7 moves downward, moving a stack of stator cores to the top of the slider 8 and placing them within the annular circle formed by multiple positioning rods 9. The multiple positioning rods 9 position the stator cores around their perimeter. Simultaneously, the receiving tray 7 passes through the middle notch of the slider 8.

[0051] S6: The slider 8 moves and moves the stator core in the multiple positioning rods 9 to the designated position, and then resets to the initial position. At the same time, the lifting mechanism also resets to the initial position.

Claims

1. A precision layered stamping device for motor laminations, characterized in that: A layering mechanism is provided in the material feeding channel below the stamping motor laminations. The stamped motor laminations enter the receiving device through the layering mechanism. There are multiple layers of the layering mechanism, and each layer of the layering mechanism corresponds to a type of motor lamination. According to the different types of motor laminations being stamped, one layer of the layering mechanism extends into the material feeding channel to allow a matching type of motor lamination to pass through. After the set type and quantity requirements are met, the layering mechanism retracts to the outside of the material feeding channel, allowing the motor laminations of that type to fall into the receiving device under their own weight. The different types of motor laminations on the receiving device are stacked up and down according to the quantity and type to form a stator core, which is then conveyed to the designated position by the transmission mechanism. The stamping device includes a lower die pad (1), a lower die (2), and a die fixing plate (3) arranged sequentially on the punch press table. The die fixing plate (3) contains a die (4), and the lower die (2) contains a locking base (5). The bottom surface of the locking base (5) and the inner end face of the countersunk hole of the lower die (2) are provided with a first channel, a second channel, and a third channel. The first channel, the second channel, and the third channel are respectively provided with a first segment, a second segment, and a third segment. The first segment, the second segment, and the third segment are located on the same plane and are pushed out by the driving mechanism at their respective tail ends. The lower die pad (1), the lower die (2), the die fixing plate (3), the die (4), and the locking base (5) are provided with a coaxial central hole. The central hole contains a lifting mechanism and a transmission mechanism. When the first motor lamination (101) is formed, the first segment extends out, and the first notch of the first motor lamination (101) can pass through the front end of the extended first segment and fall into the lifting mechanism. At this time, the second motor lamination and the third motor lamination cannot fall. When the second motor lamination is formed, the second segment extends out, and the second notch of the second motor lamination can pass through the front end of the extended second segment and fall into the lifting mechanism. At this time, the first motor lamination (101) and the third motor lamination cannot fall. When the third motor lamination is formed, the third segment extends out, and the third notch of the third motor lamination can pass through the front end of the extended third segment and fall into the lifting mechanism. At this time, the first motor lamination (101) and the second motor lamination cannot fall.

2. The precision layered stamping device for motor laminations according to claim 1, characterized in that: The lifting mechanism includes a lifting column (6) and a receiving tray (7); the receiving tray (7) is located at the top of the lifting column (6) and below the die (4); the lifting column (6) is located in the central hole and moves up and down along the axis of the central hole.

3. The precision layering stamping device for motor laminations according to claim 2, characterized in that: The transmission mechanism includes a slider (8), multiple positioning rods (9) and a guide rail (10). The slider (8) is located at the bottom of the receiving tray (7), and all the positioning rods (9) are located at the top of the slider. The motor punch, which is stamped and unloaded, is positioned outside the positioning ring of the receiving tray (7), and the outer ring of the motor punch is positioned inside the multiple positioning rods (9). The slider (8) slides laterally on the guide rail (10). The motor punch, which is positioned inside the multiple positioning rods (9), is taken away by the slider (8), and the slider (8) after the motor punch is removed is finally reset to the initial position.

4. The precision layering stamping device for motor laminations according to claim 3, characterized in that: The slider (8) has a U-shaped structure, and the receiving tray (7) passes through the middle notch of the slider (8) when it extends and retracts.

5. The precision layered stamping device for motor laminations according to claim 1, characterized in that: The layering mechanism is a segmented piece (11). The inner diameter of the material discharge channel is larger than that of the motor punch. When the segmented piece (11) is not inserted into the material discharge channel, the motor punch falls arbitrarily. When the segmented piece (11) is inserted into the material discharge channel, the distance between the front end of the segmented piece (11) and the inner wall of the material discharge channel is smaller than the diameter of the motor punch, thereby preventing the motor punch from falling.

6. A method of using a precision layering stamping device for motor laminations, applied to the precision layering stamping device for motor laminations as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: Set the number of the bottom first motor lamination (101) to N1 pieces, the number of the middle second motor lamination to N2 pieces, and the number of the top third motor lamination to N3 pieces, forming a set of stator cores. S2: Stamp the first motor punch (101), extend the first segment, and let the first notch of the first motor punch (101) pass through the front end of the extended first segment and fall onto the receiving tray (7) of the lifting mechanism. Stamp continuously and stack them in sequence to a quantity of N1 pieces; then retract the first segment. S3: Stamp the second motor punch, extend the second segment, and let the second notch of the second motor punch pass through the front end of the extended second segment and fall onto the receiving tray (7) of the lifting mechanism. Stamp continuously and stack them on the first motor punch (101) in sequence until the set number N2 pieces are reached; then retract the second segment. S4: Stamp the third motor punch, extend the third segment, and let the third notch of the third motor punch pass through the front end of the extended third segment and fall onto the receiving tray (7) of the lifting mechanism. Stamp continuously and stack them on the second motor punch in sequence until the set number N3 pieces are reached; then retract the third segment. S5: The lifting mechanism descends, and at the same time the receiving tray (7) moves downward, moving a stacked set of stator cores to the top of the slider (8) and placing them within the annular ring formed by multiple positioning rods (9). The multiple positioning rods (9) position the stator cores around their perimeter. At the same time, the receiving tray (7) passes through the middle notch of the slider (8). S6: The slider (8) moves and moves the stator core in the multiple positioning rods (9) to the designated position, and then resets to the initial position. At the same time, the lifting mechanism also resets to the initial position.

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