A device and method for loading and unrolling iron cores

Abstract

This invention relates to a core feeding and unpacking device and method, comprising an indexing turntable and a mounting bracket; the indexing turntable is provided with multiple positioning fixtures, each with a positioning groove and a positioning post; the mounting bracket is provided with an unpacking assembly, which includes a central column and a lifting assembly; the central column is provided with an unpacking collar, on which an even number of unpacking blocks with isosceles trapezoidal cross-sections are slidably arranged radially, the multiple unpacking blocks being evenly distributed around the axis of the unpacking collar; the unpacking collar is provided with multiple return springs corresponding one-to-one for resetting the unpacking blocks; the upper end of each unpacking block protrudes through the upper surface of the unpacking collar, and a first working protrusion is provided on the outer surface of the protruding part; a drive ring is coaxially rotatably arranged on the central column, and a set of first pressing blocks are symmetrically arranged on the inner wall of the drive ring; by applying the method of this application, not only is the efficiency greatly improved, but also the need for repeated positioning is eliminated, avoiding the risk of workpiece damage caused by repeated positioning.

Description

Technical Field

[0001] This invention relates to the field of motor processing technology, and more specifically, to a device and method for feeding and unpacking iron cores. Background Technology

[0002] The stator core is one of the important components of an electric motor. When feeding the stator core, the entire core is often fed and then disassembled into multiple cores to facilitate the subsequent winding of individual cores. This step is usually referred to as decoupling in the industry.

[0003] Existing core disassembly operations still largely rely on manual labor. While some automated disassembly machines exist, they suffer from low efficiency. For example, Chinese patent application No. 202120500598.6 discloses a core disassembly device. This device uses two sets of different wedge blocks to separate adjacent cores, disassembling two sets of cores at a time. Taking a core composed of six core units as an example, it requires three pressing and disassembly processes. Moreover, the more core units there are, the more pressing and disassembly processes are required. For instance, a core composed of twelve core units requires six pressing and disassembly processes. Each disassembly operation requires precise positioning, resulting in low efficiency and potential product damage due to insufficient precision. To address this deficiency, a core feeding and disassembly device and method are needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a core feeding and unpacking device and a core feeding and unpacking method, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A core loading and unloading device is constructed, comprising an indexing turntable and a mounting bracket located on one side of the indexing turntable; the indexing turntable is provided with multiple positioning fixtures for positioning the core, each positioning fixture having a positioning groove and a positioning post located at the center of the positioning groove, the positioning post matching the center hole of the core, and the inner diameter of the positioning groove being larger than the outer diameter of the core; the mounting bracket is provided with an unloading assembly, the unloading assembly including a central post coaxial with and directly opposite the positioning post, and a lifting assembly for driving the central post to rise and fall, the central post being provided with an unloading collar. An even number of isosceles trapezoidal disassembly blocks are radially slidably arranged on the disassembly collar, and the multiple disassembly blocks are evenly distributed around the axis of the disassembly collar; the disassembly collar is provided with multiple return springs that correspond one-to-one with the disassembly blocks for resetting; the upper end of the disassembly block protrudes through the upper surface of the disassembly collar, and the outer surface of the protruding part is provided with an arc-shaped first action protrusion; a drive ring is coaxially rotatably arranged on the central column, and a set of first pressing blocks that cooperate with the first action protrusion are symmetrically arranged on the inner wall of the drive ring; a drive unit that drives the drive ring to rotate is provided on the central column.

[0007] The iron core feeding and de-circling device of the present invention includes a de-circling collar having a plurality of longitudinal slots corresponding one-to-one with the de-circling blocks, a plurality of parallel guide rods arranged longitudinally within the longitudinal slots and radially distributed along the de-circling collar, a reset spring being sleeved on one or more of the guide rods, and a guide hole corresponding to the guide rod being provided on the de-circling blocks.

[0008] The iron core feeding and de-circling device of the present invention includes a rotary bearing sleeved on the outside of the de-circling collar, the inner ring of the rotary bearing being fixedly connected to the outer surface of the de-circling collar, and the outer ring of the rotary bearing being fixedly connected to the inner wall of the drive ring; a second action protrusion is provided on the outer surface of the portion of the lower end of the de-circling block that protrudes from the lower surface of the de-circling collar, and a set of second pressing blocks cooperating with the second action protrusion are symmetrically arranged on the inner wall of the drive ring.

[0009] In the iron core feeding and unrolling device of the present invention, the first functional protrusion and the second functional protrusion are arranged facing each other.

[0010] The iron core feeding and unrolling device of the present invention includes a drive ring whose upper end is higher than the unrolling collar, a motor base for mounting and fixing a drive unit on the central column, a gear ring coaxially provided on the upper end of the drive ring, and a drive unit including a drive gear meshing with the gear ring and a drive motor for driving the drive gear to rotate.

[0011] The iron core feeding and unpacking device of the present invention includes two positioning pins at the bottom end of the central column and two positioning holes at the upper end of the positioning column that cooperate with the positioning pins.

[0012] The iron core feeding and unrolling device of the present invention includes a lifting component comprising a lifting cylinder, wherein the movable end of the lifting cylinder is fixedly connected to the central column.

[0013] The iron core feeding and unrolling device of the present invention further includes a processing table, on which a feeding conveyor belt for feeding iron cores is provided. Multiple parallel partition plates are provided on the feeding conveyor belt, dividing it into multiple feeding channels. The processing table is provided with a first material transfer robot spanning the ends of the multiple feeding channels, a material transfer component located on one side of the feeding conveyor belt, and a vision inspection unit. The first material transfer robot is used to transfer the iron cores at the ends of the feeding channels to the material transfer component, and the material transfer component is used to transfer the iron cores to the vision inspection unit for visual inspection.

[0014] The iron core loading and unloading device of the present invention includes a second material transfer robot, a laser marking unit, and a waste recycling unit on the processing table; the second material transfer robot is used to move the visually inspected and qualified iron cores on the material transfer assembly to the laser marking unit for marking, move the marked iron cores to the indexing turntable, and move the visually inspected and unqualified iron cores on the material transfer assembly to the waste recycling unit.

[0015] A method for feeding and unpacking iron cores, using the iron core feeding and unpacking device described above, wherein the method includes the following steps:

[0016] The iron core is loaded onto the positioning fixture, and the positioning column positions the iron core. The indexing turntable rotates to send the iron core directly below the disassembly assembly, with the center column and the positioning column facing each other.

[0017] The lifting assembly drives the central column downward, and the lower ends of the disassembly blocks enter the partition grooves of the iron core respectively. There are gaps between the disassembly blocks and the inner walls, left inner walls and right inner walls of the partition grooves.

[0018] The drive unit drives the drive ring to rotate, which in turn drives the two first pressing blocks to rotate. When the first pressing block contacts the first acting protrusion, the first pressing block continues to rotate and will press the first acting protrusion, causing the corresponding disassembly block to move toward the axis of the central column, pressing and opening the corresponding two sets of iron core units. When the first pressing block passes the first acting protrusion, the disassembly block is reset under the elastic action of the return spring.

[0019] The drive unit drives the drive ring to rotate, and after all the iron core units are opened, the lifting assembly drives the central column to move upward and reset.

[0020] The beneficial effects of this invention are as follows: The iron core is loaded onto the positioning fixture, and the positioning column positions the iron core. The indexing turntable rotates to send the iron core directly below the disassembly assembly, with the central column and positioning column directly opposite each other. The lifting assembly drives the central column downwards, and the lower ends of the disassembly blocks respectively enter the dividing grooves of the iron core, with gaps between the disassembly blocks and the inner walls, left inner walls, and right inner walls of the dividing grooves. The driving unit drives the driving ring to rotate, which in turn drives the two first pressing blocks to rotate. When the first pressing block contacts the first acting protrusion, the first pressing block continues to rotate and will press the first acting protrusion. The protrusions cause the corresponding disassembly blocks to move toward the axis of the central column, squeezing and opening the corresponding two sets of iron core units. After the first squeezing block passes the first acting protrusion, the disassembly blocks are reset under the elastic action of the return spring. The drive unit drives the drive ring to rotate, and after completing the opening operation of all iron core units, the lifting assembly drives the central column to move upward. By using the method of this application, the squeezing and opening operation of all iron core units can be completed by rotating the drive ring 180 degrees, which greatly improves efficiency and also eliminates the need for repeated positioning, thus avoiding the risk of workpiece damage caused by repeated positioning. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0022] Figure 1 This is a schematic diagram of the core feeding and unpacking device according to a preferred embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a cross-sectional view of the central column of the iron core feeding and unpacking device according to a preferred embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the iron core of the iron core feeding and unrolling device according to a preferred embodiment of the present invention (taking an iron core composed of 12 iron core units as an example);

[0026] Figure 5 This is a schematic diagram of the cross-section of the core feeding and disassembly device of the present invention.

[0027] Figure 6 This is a flowchart of the iron core feeding and unpacking method according to a preferred embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0029] The preferred embodiment of the iron core feeding and unrolling device of the present invention, such as Figure 1 As shown, see also Figures 2-5 It includes an indexing turntable 1 and a mounting bracket 2 located on one side of the indexing turntable; the indexing turntable 1 is provided with multiple positioning fixtures 4 for positioning the iron core 3, the positioning fixture 4 is provided with a positioning groove 40 and a positioning post 41 located in the center of the positioning groove 40, the positioning post 41 matches the center hole of the iron core 3, and the inner diameter of the positioning groove 40 is larger than the outer diameter of the iron core 3.

[0030] The mounting bracket 2 is equipped with a disassembly assembly 5, which includes a central column 50 coaxial with and directly opposite the positioning column 41, and a lifting assembly 51 that drives the central column 50 to rise and fall. The central column 50 is equipped with a disassembly collar 52, and an even number of disassembly blocks 53 with isosceles trapezoidal cross sections are slidably arranged radially on the disassembly collar 52. The multiple disassembly blocks 53 are evenly distributed around the axis of the disassembly collar 52. The disassembly collar 52 is equipped with multiple return springs 54 that correspond one-to-one with the reset of the disassembly blocks 53. The upper end of the disassembly block 53 extends out of the upper surface of the disassembly collar 52, and the outer surface of the extended part is equipped with a first action protrusion 520 in the shape of an arc. The central column 50 is equipped with a drive ring 55 that rotates coaxially. The inner wall of the drive ring 55 is symmetrically equipped with a set of first pressing blocks 550 that cooperate with the first action protrusion 520. The central column 50 is equipped with a drive unit 56 that drives the drive ring 55 to rotate.

[0031] The iron core 3 is loaded onto the positioning fixture 4, and the positioning column 41 positions the iron core 3. The indexing turntable 1 rotates to send the iron core 3 directly below the disassembly assembly 5, with the central column 50 facing the positioning column 41. The lifting assembly 51 drives the central column 50 downward, and the lower ends of the disassembly blocks 53 enter the partition grooves 30 of the iron core 3 respectively. There are gaps between the disassembly blocks 53 and the inner wall, left inner wall and right inner wall of the partition groove 30.

[0032] The drive unit 56 drives the drive ring 55 to rotate, which in turn drives the two first pressing blocks 550 to rotate. When the first pressing block 550 contacts the first actuating protrusion 520, if the first pressing block 550 continues to rotate, it will press the first actuating protrusion 520, causing the corresponding disassembly block 53 to move towards the axis of the central column 50, pressing and opening the corresponding two sets of iron core units 31. When the first pressing block 550 passes the first actuating protrusion 520, the disassembly block 53 is reset under the elastic action of the reset spring 54 (at the same time as resetting, the pressing action is released, leaving space for the movement of other iron core units 31). After the drive unit 56 drives the drive ring 55 to rotate and completes the opening operation of all iron core units 31, the lifting assembly 51 drives the central column 50 to move upward.

[0033] By applying the method of this application, the extrusion and expansion operation of all iron core units can be completed by rotating the drive ring 55 180 degrees, which greatly improves efficiency and eliminates the need for repeated positioning, thus avoiding the risk of workpiece damage caused by repeated positioning.

[0034] Preferably, the device further includes a processing table, on which a feeding conveyor belt 6 for feeding iron cores is provided. Multiple parallel partition plates 60 are provided on the feeding conveyor belt 6, dividing it into multiple feeding channels. The processing table is equipped with a first transfer robot 7 spanning the ends of the multiple feeding channels, a transfer assembly 8 located on one side of the feeding conveyor belt, and a vision inspection unit 9. The first transfer robot 7 is used to transfer the iron cores at the ends of the feeding channels to the transfer assembly 8, and the transfer assembly 8 is used to transfer the iron cores... The cores are transferred to the visual inspection unit 9 for visual inspection. The processing table is equipped with a second transfer robot 10, a laser marking unit 11, and a waste recycling unit 12. The second transfer robot 10 is used to move the visually qualified iron cores on the transfer assembly 8 to the laser marking unit 11 for marking (to number each iron core for subsequent winding and assembly operations), move the marked iron cores to the indexing turntable 1, and move the visually unqualified iron cores on the transfer assembly 8 to the waste recycling unit 12.

[0035] Preferably, the disassembly ring 52 is provided with a plurality of longitudinal slots 521 corresponding one-to-one with the disassembly blocks 53. A plurality of parallel guide rods 522 are longitudinally distributed within the longitudinal slots 521, arranged radially along the disassembly ring. A return spring 54 is fitted onto one or more guide rods 522. The disassembly blocks 53 are provided with guide holes corresponding to the guide rods 522. A rotary bearing 56 is fitted onto the outside of the disassembly ring 52, and the inner ring of the rotary bearing 56 is fixedly connected to the outer surface of the disassembly ring 52. The outer ring of the rotary bearing 56 is fixedly connected to the inner wall of the drive ring 55; a second functional protrusion 523 is provided on the outer surface of the part of the lower end of the disassembly block 53 that protrudes from the lower surface of the disassembly ring 52; a set of second pressing blocks 551 that cooperate with the second functional protrusion 523 are symmetrically arranged on the inner wall of the drive ring 55; the first functional protrusion 520 and the second functional protrusion 523 are arranged opposite each other and have the same structure; the first pressing block 550 and the second pressing block 551 are arranged opposite each other and have the same structure.

[0036] This structural design allows the driving part, which plays a supporting role, to be housed in a relatively closed chamber, avoiding external interference. At the same time, the simultaneous and synchronous compression from above and below effectively ensures the stability of the movement of the disassembly block 53 and reduces lateral forces.

[0037] Preferably, the upper end of the drive ring 55 is higher than the upper end of the disassembled circular collar 52. A motor base 58 for mounting and fixing the drive unit 56 is provided on the central column 50. A gear ring 59 is coaxially provided on the upper end of the drive ring 55. The drive unit 56 includes a drive gear 560 that meshes with the gear ring and a drive motor 561 that drives the drive gear to rotate. The structure is simple and the drive stability is good. The drive structure here can be replaced by other existing rotary drive mechanisms, and there is no limitation on this.

[0038] Preferably, the bottom end of the central column 50 is provided with two positioning pins 500, and the upper end of the positioning column 41 is provided with two positioning holes that cooperate with the positioning pins; the positioning reliability is good, and the displacement is not easy to occur during the opening operation.

[0039] Preferably, the lifting assembly 51 includes a lifting cylinder, the movable end of which is fixedly connected to the central column 50; the structure is simple and the driving stability is good; the lifting structure here can be replaced by other existing lifting mechanisms, and there is no limitation on this.

[0040] A method for feeding and unpacking iron cores, employing the iron core feeding and unpacking device described above, such as... Figure 5 As shown, the method includes the following steps:

[0041] S01: The iron core is loaded onto the positioning fixture, and the positioning column positions the iron core. The indexing turntable rotates to send the iron core directly below the disassembly assembly, with the center column and the positioning column facing each other.

[0042] S02: The lifting assembly drives the central column downward, and the lower end of the disassembly block enters the partition groove of the iron core respectively, and there is a gap between the disassembly block and the inner wall, left inner wall and right inner wall of the partition groove.

[0043] S03: The drive unit drives the drive ring to rotate, which in turn drives the two first pressing blocks to rotate. When the first pressing block contacts the first acting protrusion, the first pressing block continues to rotate and will press the first acting protrusion, causing the corresponding disassembly block to move toward the axis of the central column, pressing and opening the corresponding two sets of iron core units. When the first pressing block passes the first acting protrusion, the disassembly block is reset under the elastic action of the return spring.

[0044] S04: The drive unit drives the drive ring to rotate. After completing the opening operation of all iron core units, the lifting assembly drives the central column to move upward and reset.

[0045] By applying the method of this application, the extrusion and expansion operation of all iron core units can be completed by rotating the drive ring 180 degrees, which greatly improves efficiency. At the same time, it eliminates the need for repeated positioning and avoids the risk of workpiece damage caused by repeated positioning.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A core feeding and unpacking device, characterized in that, The system includes an indexing turntable and a mounting bracket located on one side of the indexing turntable. The indexing turntable is equipped with multiple positioning fixtures for positioning the iron core. Each positioning fixture has a positioning groove and a positioning post located at the center of the positioning groove. The positioning post matches the center hole of the iron core, and the inner diameter of the positioning groove is larger than the outer diameter of the iron core. The mounting bracket is equipped with a disassembly assembly, which includes a central post coaxial with and directly opposite the positioning post, and a lifting assembly that drives the central post to rise and fall. The central post is equipped with a disassembly... A circular collar is provided, on which an even number of isosceles trapezoidal disassembly blocks are slidably arranged radially, and the disassembly blocks are evenly distributed around the axis of the disassembly collar; the disassembly collar is provided with a plurality of return springs corresponding one-to-one to the disassembly blocks for resetting; the upper end of each disassembly block protrudes through the upper surface of the disassembly collar, and the outer surface of the protruding part is provided with an arc-shaped first action protrusion; a drive ring is coaxially rotatably arranged on the central column, and a set of first compression blocks that cooperate with the first action protrusions are symmetrically arranged on the inner wall of the drive ring. The central column is equipped with a drive unit that drives the drive ring to rotate; the disassembly ring has multiple longitudinal slots corresponding to the disassembly blocks, and multiple parallel guide rods are arranged radially along the disassembly ring within the longitudinal slots. One or more of the guide rods are fitted with the return spring, and the disassembly blocks have guide holes corresponding to the guide rods; a rotary bearing is fitted around the outside of the disassembly ring, and the inner ring of the rotary bearing is fixedly connected to the outer surface of the disassembly ring. The ring is fixedly connected to the inner wall of the drive ring; a second action protrusion is provided on the outer surface of the part of the lower end of the disassembly ring that protrudes from the lower surface of the disassembly ring; a set of second pressing blocks that cooperate with the second action protrusion are symmetrically arranged on the inner wall of the drive ring; the upper end of the drive ring is higher than the upper end of the disassembly ring; a motor base for mounting and fixing the drive unit is provided on the central column; a gear ring is coaxially provided on the upper end of the drive ring; the drive unit includes a drive gear that meshes with the gear ring and a drive motor that drives the drive gear to rotate.

2. The iron core feeding and unrolling device according to claim 1, characterized in that, The first functional bump and the second functional bump are arranged facing each other.

3. The iron core feeding and unrolling device according to claim 1, characterized in that, The bottom end of the central column is provided with two positioning pins, and the upper end of the positioning column is provided with two positioning holes that cooperate with the positioning pins.

4. The iron core feeding and unrolling device according to claim 1, characterized in that, The lifting assembly includes a lifting cylinder, the movable end of which is fixedly connected to the central column.

5. The iron core feeding and unpacking device according to claim 1, characterized in that, The device further includes a processing table, on which a feeding conveyor belt for feeding iron cores is provided. The feeding conveyor belt is provided with multiple parallel partition plates, which divide the feeding conveyor belt into multiple feeding channels. The processing table is provided with a first material transfer robot spanning the tail end of the multiple feeding channels, a material transfer component located on one side of the feeding conveyor belt, and a vision inspection unit. The first material transfer robot is used to transfer the iron cores at the tail end of the feeding channels to the material transfer component, and the material transfer component is used to transfer the iron cores to the vision inspection unit for visual inspection.

6. The iron core feeding and unrolling device according to claim 5, characterized in that, The processing table is equipped with a second transfer robot, a laser marking unit, and a waste recycling unit; the second transfer robot is used to move the visually inspected and qualified iron cores on the transfer assembly to the laser marking unit for marking, move the marked iron cores to the indexing turntable, and move the visually inspected and unqualified iron cores on the transfer assembly to the waste recycling unit.

7. A method for feeding and unpacking iron cores, using the iron core feeding and unpacking device as described in any one of claims 1-6, characterized in that, The method includes the following steps: The iron core is loaded onto the positioning fixture, and the positioning column positions the iron core. The indexing turntable rotates to send the iron core directly below the disassembly assembly, with the center column and the positioning column facing each other. The lifting assembly drives the central column downward, and the lower ends of the disassembly blocks enter the partition grooves of the iron core respectively. There are gaps between the disassembly blocks and the inner walls, left inner walls and right inner walls of the partition grooves. The drive unit drives the drive ring to rotate, which in turn drives the two first pressing blocks to rotate. When the first pressing block contacts the first acting protrusion, the first pressing block continues to rotate and will press the first acting protrusion, causing the corresponding disassembly block to move toward the axis of the central column, pressing and opening the corresponding two sets of iron core units. When the first pressing block passes the first acting protrusion, the disassembly block is reset under the elastic action of the return spring. The drive unit drives the drive ring to rotate, and after all the iron core units are opened, the lifting assembly drives the central column to move upward and reset.

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