Accurate layering stamping device for motor punching sheet and using method

Abstract

The invention discloses an accurate layering stamping device and method for a motor punching sheet, a blanking channel below the stamped motor punching sheet is provided with a plurality of groups of layering mechanisms, each group of layering mechanism corresponds to one type of motor punching sheet, and according to stamping of different types of motor punching sheets, the number of the motor punching sheets is more than one. One group of the layering mechanisms extends into the blanking channel, one kind of motor punching sheets of the matched type pass through the blanking channel, and after the set type and number requirements are met, the group of layering mechanisms retract to the outside of the blanking channel, so that the motor punching sheets of the type fall into the material receiving device under the action of self weight; once different types of motor punching sheets on the material receiving device are stacked up and down according to the number and the type to form a stator iron core, the stator iron core is conveyed to a designated position by the conveying mechanism. According to the device and the method, through the layering mechanism, the motor punching sheets meeting the set requirements can fall, the motor punching sheets which do not meet the set requirements can be prevented from falling, and therefore accurate layering of different punching sheets can be achieved.

Description

Technical Field

[0001] The invention relates to the field of stamping technology, in particular to a device for accurately layering and stamping motor punching sheets and a method for using the device. Background Art

[0002] The stator core of the motor is made up of many motor stampings stacked together, of which there are several types of motor stampings, such as Figure 1 Punch the first motor. Figure 2 Punch the second motor. Figure 3 For the third motor lamination, according to different requirements of the stator core, each group of stator cores can be composed of multiple first motor laminations, multiple second motor laminations, and multiple third motor laminations stacked in different quantities and different arrangement positions. At present, during the stamping process, stamping equipment is used to stack according to the number of sheets cut, but the accuracy is poor and accurate counting cannot be achieved. It is often not arranged and stacked according to the set count, resulting in the stator core failing to meet the technical requirements. Of course, there is also manual selection and manual assembly, which is too inefficient, and the structures of the three motor laminations are too close, so the stacking and assembly are not performed as required. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a motor punching sheet that meets the set requirements and can prevent the motor punching sheets that do not meet the set requirements from falling through a stratification mechanism, thereby achieving accurate stratification of different punching sheets and realizing mechanized stratification, and a highly efficient motor punching sheet accurate stratification stamping device and a method of use.

[0004] The technical solution of the present invention is to provide a precise layered stamping device for motor punching sheets with the following structure, wherein a layering mechanism is provided in a blanking channel below the punched motor punching sheets, and the punched motor punching sheets enter the receiving device through the layering mechanism, and there are multiple groups of layering mechanisms, each group of layering mechanisms corresponds to a type of motor punching sheet, and according to the punching of different types of motor punching sheets, one group of the layering mechanisms is extended into the blanking channel to allow a matching type of motor punching sheet to pass through, and after the set type and quantity requirements are met, the group of layering mechanisms is retracted outside the blanking channel, so that the motor punching sheet of this type falls to the receiving device under the action of its own weight, and the different types of motor punching sheets on the receiving device are stacked up and down according to quantity and type to form a stator core and then transmitted to the specified position by the transmission mechanism.

[0005] The precise layered punching device of the motor punching sheet of the present invention comprises a lower die pad, a lower concave die, and a concave die fixing plate which are sequentially arranged on the punching machine table, a concave die is arranged in the concave die fixing plate, a locking base is arranged in the lower concave die, a first channel, a second channel and a third channel are arranged between the bottom surface of the locking base and the inner end surface of the countersunk hole of the lower concave die; the first channel, the second channel and the third channel are respectively provided with a first split piece, a second split piece and a third split piece, the first split piece, the second split piece and the third split piece are located in a plane at the same height and are respectively extended out under the push of the driving mechanism at their respective tail ends, a coaxial center hole is arranged in the center of the lower die pad, the lower concave die, the concave die fixing plate, the concave die and the locking base, a lifting mechanism and a transmission mechanism are arranged in the center hole;

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

[0007] The lifting mechanism includes a lifting column and a receiving tray; the receiving tray is arranged on the top of the lifting column and below the die, and the lifting column is located in the center hole and moves up and down along the axis of the center hole;

[0008] The transmission mechanism includes a slider, multiple positioning rods and guide rails. 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 punching sheet for stamping and blanking is positioned inside the positioning ring of the receiving tray, and the outer ring is positioned inside the multiple positioning rods. The slider slides horizontally on the guide rail, and the motor punching sheet positioned in the multiple positioning rods is taken away by the slider, and the slider is finally reset to the initial position after the motor punching sheet is removed.

[0009] The slide block is in a U-shaped structure, and the receiving tray passes through the middle gap of the slide block when it is extended and retracted up and down.

[0010] The stratification mechanism is a split piece, and the inner diameter of the blanking channel is larger than the motor punching sheet. When the split piece does not extend into the blanking channel, the motor punching sheet falls randomly. When the split piece extends into the blanking channel, the distance between the front end of the split piece and the inner wall of the blanking channel is smaller than the diameter of the motor punching sheet, thereby preventing the motor punching sheet from falling.

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

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

[0013] S2: Punching the first motor punching sheet, extending the first split sheet, so that the first notch of the first motor punching sheet can pass through the extended front end of the first split sheet and fall onto the receiving plate of the lifting mechanism, and continuously punching and stacking N1 sheets in sequence; then retracting the first split sheet;

[0014] S3: Punching the second motor punching sheet, extending the second split sheet, so that the second notch of the second motor punching sheet can pass through the extended front end of the second split sheet and fall onto the receiving plate of the lifting mechanism, and continuously punching and sequentially superimposing on the first motor punching sheet and reaching the set number N2 sheets; then retracting the second split sheet;

[0015] S4: Punching the third motor punching sheet, extending the third split sheet, the third notch of the third motor punching sheet can pass through the extended front end of the third split sheet and fall onto the receiving plate of the lifting mechanism, continuously punching and sequentially superimposing on the second motor punching sheet and reaching the set number N3 sheets; then retracting the third split sheet;

[0016] S5: The lifting mechanism descends, and the receiving tray moves downward, moving a group of stacked stator cores to the top of the slider and placing them in the annular ring formed by multiple positioning rods, and multiple positioning rods position the four sides of the stator cores; at the same time, the receiving tray passes through the middle gap of the slider.

[0017] S6: The slider moves and moves the stator core in the plurality of positioning rods to a specified position, and then resets to the initial position, and 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 split pieces are inserted to make the corresponding motor punching sheet fall to the receiving plate, and the number of sheets is measured by the program control of the punching machine to ensure that each type of motor punching sheet can be punched separately and accurately separated, so as to achieve the separation of different types of sheets such as the first motor punching sheet, the second motor punching sheet, and the third motor punching sheet, so as to achieve accurate layering of the punching sheet, and achieve mechanized layering with high efficiency. 2. The layering mechanism is the first splitting sheet, the second splitting sheet and the third splitting sheet. The structure is convenient to install in the cavity of the lower concave die and occupies a small space. 3. The splitting sheet can support high strength and can support multiple falling motor punching sheets with good reliability. 4. The front end of the splitting sheet of the layering mechanism is matched with the notch of the motor punching sheet. When the notch matches the front end of the splitting sheet, the corresponding motor punching sheet will fall down; if it does not match, the motor punching sheet will be isolated and cannot fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the first motor punching sheet.

[0020] Figure 2 Schematic diagram of the second motor punching sheet.

[0021] Figure 3 This is a schematic diagram of the third motor punching sheet.

[0022] Figure 4 A cross-sectional schematic diagram showing the isolation of the first motor punching sheet on the top and the second motor punching sheet on the bottom.

[0023] Figure 5 For isolation, the top is a schematic diagram showing the first motor punching sheet on the top and the second motor punching sheet on the bottom.

[0024] Figure 6 A cross-sectional schematic diagram showing the second motor punching sheet on the upper side and the first motor punching sheet on the lower side for isolation.

[0025] Figure 7 A schematic top view showing the second motor punching sheet on top and the first motor punching sheet on the bottom for isolation.

[0026] Figure 8 A cross-sectional schematic diagram showing the isolation of the first motor punching sheet on the top and the third motor punching sheet on the bottom.

[0027] Fig. 9 For isolation, the top is a schematic diagram showing the first motor punching sheet and the bottom is a top view showing the third motor punching sheet.

[0028] Fig.10 It is a three-dimensional schematic diagram of the precise layered punching device for motor punching sheets of the present invention.

[0029] Fig.11 It is a cross-sectional schematic diagram of the precise layered punching device for motor punching sheets of the present invention.

[0030] As shown in the figure,

[0031] 1. Lower die pad, 2. Lower concave die, 3. Concave die fixing plate, 4. Concave die, 5. Locking base, 6. Lifting column, 7. Receiving tray, 8. Slider, 9. Positioning rod, 10. Guide rail, 11. Splitting piece, 101. First motor punching piece, 102. First notch, 201. Second motor punching piece, 202. Second notch, 301. Third motor punching piece, 302. Third notch. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Figure 1 Schematic diagram of the first motor punching sheet 101, with a first notch 102 provided on the outer side wall.

[0034] Figure 2 is a schematic diagram of a second motor punching sheet 201, with a second notch 202 provided on the outer side wall.

[0035] Figure 3 Schematic diagram of the third motor punching sheet 301, with a third notch 302 provided on the outer side wall.

[0036] The present invention discloses a device for accurately layering and punching motor punching sheets. A layering mechanism is provided in a blanking channel below the punched motor punching sheets. The punched motor punching sheets enter a receiving device through the layering mechanism. There are multiple groups of layering mechanisms, and each group of layering mechanisms corresponds to a type of motor punching sheet. According to the different types of motor punching sheets being punched, one group of the layering mechanisms is extended into the blanking channel to allow a motor punching sheet of a matching type to pass through. After the set type and quantity requirements are met, the layering mechanism of the group is retracted outside the blanking channel to allow the motor punching sheet of this type to fall into the receiving device under the action of its own weight. The different types of motor punching sheets on the receiving device are stacked up and down according to quantity and type to form a stator core and then transmitted to a specified position by a transmission mechanism.

[0037] like Figure 5 As shown, a precise layered punching device for motor punching sheets of the present invention has a specific structure comprising a lower die pad 1, a lower die 2, and a die fixing plate 3 which are sequentially arranged on the punching machine table, a die 4 is arranged in the die fixing plate 3, a locking base 5 is arranged in the lower die 2, a first channel, a second channel and a third channel are arranged between the bottom surface of the locking base 5 and the inner end surface of the countersunk hole of the lower die 2; the first channel, the second channel and the third channel are respectively provided with a first split piece, a second split piece and a third split piece, the first split piece, the second split piece and the third split piece are located in a plane at the same height and are respectively extended out under the push of the driving mechanisms at their respective tail ends, a coaxial center hole is provided in the centers of the lower die pad 1, the lower die 2, the die fixing plate 3, the die 4 and the locking base 5, a lifting mechanism and a transmission mechanism are arranged in the center hole.

[0038] like Figure 4 and Figure 5 As shown, in order to isolate the first motor punching sheet 101 and the second motor punching sheet 102, that is, there are multiple first motor punching sheets 101 on the top and multiple second motor punching sheets 201 on the bottom. When the first motor punching sheet 101 is formed, the first split sheet extends out, and the first notch of the first motor punching sheet 101 can pass through the extended front end of the first split sheet and fall to the lifting mechanism. At this time, the second motor punching sheet 201 and the third motor punching sheet 301 cannot fall.

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

[0040] like Figure 8 and Fig. 9 As shown, in order to isolate the first motor punching sheet 101 and the third motor punching sheet 301, that is, there are multiple first motor punching sheets 101 on the top and multiple third motor punching sheets 301 on the bottom. When the third motor punching sheet 301 is formed, the third split sheet is extended, and the third notch of the third motor punching sheet 301 can pass through the extended front end of the first split sheet and fall to the lifting mechanism. At this time, the first motor punching sheet 101 and the second motor punching sheet 201 cannot fall.

[0041] like Fig.10 and Fig.11 As shown, the lifting mechanism includes a lifting column 6 and a receiving tray 7; the receiving tray 7 includes a circular bottom plate and two arc plates, the two arc plates are on the side wall of the same cylinder, and are symmetrical, and are not connected. The tops of the two arc plates are radially inward, serving as a guide structure when the motor punching sheet falls. The receiving tray 7 is arranged on the top of the lifting column 6 and below the die 4. The lifting column 6 is located in the center hole and moves up and down along the axis of the center hole.

[0042] The transmission mechanism includes a slider 8, a plurality of 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 8. The motor punching sheet for punching blanking is positioned outside the positioning ring of the receiving tray 7, and the outer ring is positioned in the plurality of positioning rods 9. The slider 8 slides horizontally on the guide rail 10, and the motor punching sheet positioned in the plurality of positioning rods 9 is taken away by the slider 8. After the motor punching sheet is removed, the slider 8 finally resets to the initial position. There are two guide rails 10, and the slider 8 slides between the two guide rails 10.

[0043] The slide block 8 is in a U-shaped structure, and the receiving tray 7 passes through the middle gap of the slide block 8 when it is extended and retracted up and down.

[0044] The stratification mechanism is a split piece 11, and the inner diameter of the blanking channel is larger than the motor punching piece. When the split piece 11 does not extend into the blanking channel, the motor punching piece falls randomly. When the split piece 11 extends into the blanking channel, the distance between the front end of the split piece 11 and the inner wall of the blanking channel is smaller than the diameter of the motor punching piece, thereby preventing the motor punching piece from falling.

[0045] A method for using a motor punching precision layering punching device of the present invention comprises the following steps:

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

[0047] S2: Punching the first motor punching sheet 101, extending the first split sheet, so that the first notch of the first motor punching sheet 101 can pass through the extended front end of the first split sheet and fall onto the receiving tray 7 of the lifting mechanism, and continuously punching and stacking N1 sheets in sequence; then retracting the first split sheet;

[0048] S3: Punching the second motor punching sheet 201, extending the second split sheet, so that the second notch of the second motor punching sheet 201 can pass through the extended front end of the second split sheet and fall onto the receiving plate 7 of the lifting mechanism, and continuously punching and sequentially superimposing on the first motor punching sheet 101 and reaching the set number N2 sheets; then retracting the second split sheet;

[0049] S4: Punching the third motor punching sheet 301, extending the third split sheet, the third notch of the third motor punching sheet 301 can pass through the extended front end of the third split sheet and fall onto the receiving plate 7 of the lifting mechanism, continuously punching and sequentially superimposing on the second motor punching sheet 201 and reaching the set number N3 sheets; then retracting the third split sheet;

[0050] S5: The lifting mechanism descends, and at the same time, the receiving tray 7 moves downward, moves a group of stacked stator cores to the top of the slider 8, and places them in the annular ring formed by multiple positioning rods 9, and multiple positioning rods 9 position the four sides of the stator core; at the same time, the receiving tray 7 passes through the middle gap of the slider 8.

[0051] S6: The slider 8 moves and moves the stator core in the plurality of positioning rods 9 to a specified position, and then resets to the initial position, and at the same time, the lifting mechanism also resets to the initial position.

Claims

1. A precise layered punching device for motor punching, characterized in that: A stratification mechanism is provided in the blanking channel below the stamped motor punching sheets, and the stamped motor punching sheets enter the receiving device through the stratification mechanism. There are multiple groups of stratification mechanisms, and each group of stratification mechanisms corresponds to one type of motor punching sheets. According to the stamping of different types of motor punching sheets, one group of stratification mechanisms is extended into the blanking channel to allow a motor punching sheet of a matching type to pass through. After meeting the set type and quantity requirements, the stratification mechanism of this group is retracted outside the blanking channel, so that the motor punching sheet of this type falls to the receiving device under the action of its own weight. The different types of motor punching sheets on the receiving device are stacked up and down according to quantity and type to form a stator core and are then transported to the designated position by the transmission mechanism.

2. The precise layered stamping device for motor punching sheets according to claim 1, characterized in that: The invention comprises a lower die pad (1), a lower concave die (2), and a concave die fixing plate (3) which are sequentially arranged on a punching machine table; a concave die (4) is arranged in the concave die fixing plate (3); a locking base (5) is arranged in the lower concave die (2); a first channel, a second channel, and a third channel are arranged between the bottom surface of the locking base (5) and the inner end surface of the countersunk hole of the lower concave die (2); the first channel, the second channel, and the third channel are respectively provided with a first split piece, a second split piece, and a third split piece; the first split piece, the second split piece, and the third split piece are located in a plane at the same height and are respectively extended out under the push of a driving mechanism at their respective tail ends; a coaxial center hole is arranged in the center of the lower die pad (1), the lower concave die (2), the concave die fixing plate (3), the concave die (4), and the locking base (5); a lifting mechanism and a transmission mechanism are arranged in the center hole; When forming the first motor punch (101), the first split sheet extends, and the first notch of the first motor punch (101) can pass through the extended front end of the first split sheet and fall to the lifting mechanism. At this time, the second motor punch and the third motor punch cannot fall. When forming the second motor punch, the second split sheet extends, and the second notch of the second motor punch can pass through the extended front end of the second split sheet and fall to the lifting mechanism. At this time, the first motor punch (101) and the third motor punch cannot fall. When forming the third motor punch, the third split sheet extends, and the third notch of the third motor punch can pass through the extended front end of the first split sheet and fall to the lifting mechanism. At this time, the first motor punch (101) and the second motor punch cannot fall.

3. The precise layered stamping device for motor punching sheets according to claim 2, characterized in that: The lifting mechanism comprises a lifting column (6) and a receiving tray (7); the receiving tray (7) is arranged on the top of the lifting column (6) and is located below the die (4); the lifting column (6) is located in the center hole and moves up and down along the axis of the center hole.

4. The precise layered stamping device for motor punching sheets according to claim 3, characterized in that: The transmission mechanism comprises a slider (8), a plurality of 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 punching sheet for punching and blanking is positioned inside the positioning ring of the receiving tray (7), and the outer ring is positioned inside the plurality of positioning rods (9); the slider (8) slides transversely on the guide rail (10), and the motor punching sheet positioned inside the plurality of positioning rods (9) is taken away by the slider (8), and the slider (8) is finally reset to the initial position after the motor punching sheet is removed.

5. The precise layered stamping device for motor punching sheets according to claim 4, characterized in that: The slide block (8) has a U-shaped structure, and the receiving plate (7) passes through the middle gap of the slide block (8) when it is extended and retracted up and down.

6. The precise layered stamping device for motor punching sheets according to claim 1 or 2, characterized in that: The stratification mechanism is a split sheet (11), the inner diameter of the blanking channel is larger than the motor punching sheet, when the split sheet (11) does not extend into the blanking channel, the motor punching sheet falls randomly, when the split sheet (11) extends into the blanking channel, the distance between the front end of the split sheet (11) and the inner wall of the blanking channel is smaller than the diameter of the motor punching sheet, thereby preventing the motor punching sheet from falling.

7. A method for using a motor punching sheet precision layering punching device, applied to a motor punching sheet precision layering punching device according to any one of claims 1 to 6, characterized in that: The steps include: S1: setting the number of the first motor punching sheets (101) at the bottom to N1 sheets, the number of the second motor punching sheets in the middle to N2 sheets, and the number of the third motor punching sheets at the top to N3 sheets, to form a set of stator cores; S2: Punching the first motor punch (101), extending the first split sheet, so that the first notch of the first motor punch (101) can pass through the extended front end of the first split sheet and fall onto the receiving plate (7) of the lifting mechanism, and continuously punching and stacking N1 sheets in sequence; then retracting the first split sheet; S3: Punching the second motor punching sheet, extending the second split sheet, so that the second notch of the second motor punching sheet can pass through the extended front end of the second split sheet and fall onto the receiving plate (7) of the lifting mechanism, and continuously punching and sequentially stacking on the first motor punching sheet (101) until a set number N2 sheets are reached; then the second split sheet is retracted; S4: Punching the third motor punching sheet, extending the third split sheet, so that the third notch of the third motor punching sheet can pass through the extended front end of the third split sheet and fall onto the receiving plate (7) of the lifting mechanism, and continuously punching and sequentially stacking on the second motor punching sheet until the set number N3 sheets are reached; then the third split sheet is retracted; S5: The lifting mechanism descends, and at the same time, the receiving tray (7) moves downward, and a group of stacked stator cores are moved to the top of the slider (8), and placed in the annular ring formed by multiple positioning rods (9), and multiple positioning rods (9) position the four sides of the stator core; at the same time, the receiving tray (7) passes through the middle gap of the slider (8). S6: The slider (8) moves and moves the stator core in the plurality of positioning rods (9) to a specified position, and then resets to the initial position, and the lifting mechanism also resets to the initial position.

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