Iron core feeding and derounding device and method

Abstract

The invention relates to an iron core feeding and derounding device and method. The iron core feeding and derounding device comprises an indexing turntable and a mounting bracket, a plurality of positioning jigs are arranged on the indexing rotary disc, positioning grooves and positioning columns are arranged on the positioning jigs, a circle disassembling assembly is arranged on the mounting support and comprises a center column and a lifting assembly, a circle disassembling lantern ring is arranged on the center column, and an even number of circle disassembling blocks with isosceles trapezoid sections are arranged on the circle disassembling lantern ring in a sliding mode in the radial direction. The multiple circle disassembling blocks are evenly distributed around the axis of the circle disassembling lantern ring. A plurality of reset springs for resetting the circle disassembling blocks in a one-to-one correspondence manner are arranged on the circle disassembling lantern ring; the upper end of the circle disassembling block penetrates out of the upper surface of the circle disassembling lantern ring, and a first acting convex block is arranged on the outer side surface of the penetrating part; a driving ring is coaxially and rotatably arranged on the central column, and a group of first extrusion blocks are symmetrically arranged on the inner wall of the driving ring; by applying the mode, the efficiency is greatly improved, meanwhile, repeated positioning is not needed, and the workpiece damage risk caused by repeated positioning is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of motor processing, and more specifically to a device and method for feeding and de-rounding an iron core. Background Art

[0002] The stator core is one of the important components of the motor. When loading the stator core, the entire core is often loaded and then split into multiple cores to facilitate the subsequent winding process of the single core monomer. This step is usually called de-circling in the industry.

[0003] Most of the existing debonding operations still rely on manual labor, and some use automatic debonding machines, which still have the defect of low efficiency. For example, the Chinese application, application number 202120500598.6 discloses a core disassembling device, which uses two groups of different wedge blocks to cooperate to spread two adjacent cores, and disassembles two groups of cores each time to complete the debonding. Taking the core formed by a combination of six core monomers as an example, three pressing and disassembly processes are required, and the more core monomers there are, the more pressing times will be required. For example, the core formed by a combination of twelve core monomers requires six pressing and disassembly processes. Each disassembly operation will have requirements for positioning accuracy, which is not only inefficient but also prone to product damage caused by insufficient precision. In order to solve this defect, a core feeding and debonding device and method are needed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an iron core loading and de-spherical device and an iron core loading and de-spherical method in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A core loading and debonding device is constructed, which includes a dividing turntable and a mounting bracket located on one side of the dividing turntable; the dividing turntable is provided with a plurality of positioning jigs for positioning the core, the positioning jigs are provided with positioning grooves and positioning columns located at the center of the positioning grooves, the positioning columns match the center holes of the cores, and the inner diameter of the positioning grooves is larger than the outer diameter of the cores; the mounting bracket is provided with a debonding assembly, the debonding assembly includes a center column coaxial with and facing the positioning column and a lifting assembly driving the center column to rise and fall, the center column is provided with a debonding collar, An even number of dismantling blocks with isosceles trapezoidal cross-sections are radially slidably arranged on the dismantling ring, and the multiple dismantling blocks are evenly distributed around the axis of the dismantling ring; the dismantling ring is provided with multiple reset springs corresponding to each other for resetting the dismantling blocks; the upper ends of the dismantling blocks pass through the upper surface of the dismantling ring and the outer surface of the protruding parts is provided with first arc-shaped action protrusions; a driving ring is coaxially rotatably arranged on the center column, and a group of first extrusion blocks cooperating with the first action protrusions are symmetrically arranged on the inner wall of the driving ring, and a driving unit for driving the driving ring to rotate is provided on the center column.

[0007] The iron core loading and debonding device described in the present invention is characterized in that the debonding ring is provided with a plurality of longitudinal slots corresponding one-to-one with the debonding blocks, a plurality of parallel guide rods distributed radially along the debonding ring are longitudinally distributed in the longitudinal slots, the return spring is sleeved on one or more of the guide rods, and the debonding block is provided with guide holes corresponding to the guide rods.

[0008] The iron core loading and debonding device described in the present invention is characterized in that the outer sleeve of the debonding ring is provided with a rotating bearing, the inner ring of the rotating bearing is fixedly connected to the outer surface of the debonding ring, and the outer ring of the rotating bearing is fixedly connected to the inner wall of the driving ring; a second functional protrusion is provided on the outer surface of the part where the lower end of the debonding block passes through the lower surface of the debonding ring, and a group of second extrusion blocks cooperating with the second functional protrusion are symmetrically provided on the inner wall of the driving ring.

[0009] In the iron core loading and de-rounding device described in the present invention, the first functional protrusion and the second functional protrusion are arranged opposite to each other.

[0010] The iron core loading and de-circling device described in the present invention, wherein the upper end of the drive ring is higher than the upper end of the de-circling ring, the central column is provided with a motor seat for mounting and fixing the drive unit, the upper end of the drive ring is coaxially provided with a gear ring, and the drive unit includes a drive gear meshing with the gear ring and a drive motor for driving the drive gear to rotate.

[0011] The core loading and de-circling device of the present invention comprises two positioning pins at the bottom end of the center column, and two positioning holes cooperating with the positioning pins are arranged at the upper end of the positioning column.

[0012] The core loading and de-circling device described in the present invention, wherein the lifting assembly includes a lifting cylinder, and the movable end of the lifting cylinder is fixedly connected to the center column.

[0013] The iron core loading and decircling device described in the present invention, wherein the device also includes a processing table, on which a loading conveyor belt for feeding the iron core is arranged, and a plurality of side-by-side partition plates are arranged on the loading conveyor belt, and the plurality of partition plates divide the loading conveyor belt into a plurality of feeding channels, and the processing table is provided with a first material moving robot spanning the tail ends of the plurality of feeding channels, a material moving assembly located on one side of the loading conveyor belt, and a visual inspection unit, the first material moving robot is used to move the iron core at the tail end of the feeding channel to the material moving assembly, and the material moving assembly is used to move the iron core to the visual inspection unit for visual inspection.

[0014] The iron core loading and decircling device described in the present invention, wherein the processing table is provided with a second material moving robot, a laser coding unit and a waste recovery unit; the second material moving robot is used to move the iron cores that have passed the visual inspection on the material moving component to the laser coding unit for coding, move the coded iron cores to the dividing turntable, and move the iron cores that have failed the visual inspection on the material moving component to the waste recovery unit.

[0015] A method for loading and unrolling an iron core, using the above-mentioned iron core loading and unrolling device, wherein the method comprises the steps of:

[0016] Load the iron core onto the positioning fixture, and use the positioning column to position the iron core. The indexing turntable rotates to send the iron core to the bottom of the decircling assembly, and the center column faces the positioning column.

[0017] The lifting assembly drives the central column downward, and the lower ends of the dismantling round blocks respectively enter the separation grooves of the iron core, and there are gaps between the dismantling round blocks and the inner wall, left inner wall and right inner wall of the separation groove;

[0018] The driving unit drives the driving ring to rotate, and then drives the two first extrusion blocks to rotate. When the first extrusion block contacts the first action protrusion, the first extrusion block continues to rotate to squeeze the first action protrusion, so that the corresponding debonding block moves toward the axis of the central column, and squeezes and stretches apart the corresponding two groups of iron core monomers; when the first extrusion block passes over the first action protrusion, the debonding block is reset under the elastic action of the reset spring;

[0019] The driving unit drives the driving ring to rotate, and after completing the expansion operation of all the core monomers, the lifting assembly drives the center column to move upward and reset.

[0020] The beneficial effects of the present invention are as follows: the iron core is loaded onto the positioning fixture, and the iron core is positioned by the positioning column, the indexing turntable rotates to send the iron core to the bottom of the de-circling assembly, and the center column is directly opposite to the positioning column; the lifting assembly drives the center column downward, and the lower ends of the de-circling blocks respectively enter the separation grooves of the iron core, and there are gaps between the de-circling blocks and the inner wall, the left inner wall and the right inner wall of the separation groove; the driving unit drives the driving ring to rotate, and then drives the two first extrusion blocks to rotate, and when the first extrusion block contacts the first acting protrusion, the first extrusion block continues to rotate to squeeze the first acting protrusion The protrusions are used to make the corresponding debulking blocks move toward the axis of the center column, squeezing and stretching the corresponding two groups of core monomers; when the first squeezing block passes over the first acting protrusion, the debulking block is reset under the elastic action of the reset spring; the driving unit drives the driving ring to rotate, and after completing the stretching operation of all the core monomers, the lifting assembly drives the center column upward; using the method of the present application, the driving ring can rotate 180 degrees to complete the squeezing and stretching operation of all the core monomers, which greatly improves the efficiency. At the same time, there is no need for repeated positioning, avoiding the risk of workpiece damage caused by repeated positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0022] Figure 1 It is a structural schematic diagram of an iron core feeding and de-rounding device according to a preferred embodiment of the present invention;

[0023] Figure 2 yes Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 3 It is a cross-sectional view of the center column of the iron core loading and decircling device of a preferred embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the core of the core feeding and de-circling device of a preferred embodiment of the present invention (taking the core composed of 12 core monomers as an example);

[0026] Figure 5 It is a cross-sectional schematic diagram of a rounding block of an iron core feeding and rounding device according to a preferred embodiment of the present invention;

[0027] Figure 6 It is a flow chart of the core loading and de-circling method of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0029] The core loading and de-rounding device of the preferred embodiment of the present invention is as follows: Figure 1 See also Figure 2-Figure 5 , including a dividing turntable 1 and a mounting bracket 2 located on one side of the dividing turntable; a plurality of positioning jigs 4 for positioning the iron core 3 are arranged on the dividing turntable 1, and the positioning jig 4 is provided with a positioning groove 40 and a positioning column 41 located at the center of the positioning groove 40, the positioning column 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 provided with a disassembly assembly 5, which includes a center column 50 coaxial with and directly opposite to the positioning column 41 and a lifting assembly 51 for driving the center column 50 to rise and fall. A disassembly ring 52 is provided on the center column 50, and an even number of disassembly blocks 53 with isosceles trapezoidal cross-sections are radially slidably provided on the disassembly ring 52, and the multiple disassembly blocks 53 are evenly distributed around the axis of the disassembly ring 52; the disassembly ring 52 is provided with a plurality of reset springs 54 for resetting the disassembly blocks 53 in a one-to-one correspondence; the upper end of the disassembly block 53 passes through the upper surface of the disassembly ring 52 and a first arc-shaped action protrusion 520 is provided on the outer surface of the passing part; a driving ring 55 is coaxially rotatably provided on the center column 50, and a group of first extrusion blocks 550 cooperating with the first action protrusion 520 are symmetrically provided on the inner wall of the driving ring 55, and a driving unit 56 for driving the driving ring 55 to rotate is provided on the center column 50;

[0031] The iron core 3 is loaded onto the positioning fixture 4, and the positioning column 41 is used to position the iron core 3. The indexing turntable 1 rotates to send the iron core 3 to the bottom of the de-circling assembly 5, and the center column 50 is directly opposite to the positioning column 41; the lifting assembly 51 drives the center column 50 downward, and the lower ends of the de-circling blocks 53 respectively enter the separation grooves 30 of the iron core 3, and there is a gap between the de-circling blocks 53 and the inner wall, the left inner wall and the right inner wall of the separation groove 30;

[0032] The driving unit 56 drives the driving ring 55 to rotate, and then drives the two first extrusion blocks 550 to rotate. When the first extrusion block 550 contacts the first action protrusion 520, if the first extrusion block 550 continues to rotate, it will squeeze the first action protrusion 520, so that the corresponding disassembly block 53 moves toward the axis of the central column 50, and squeezes and stretches the corresponding two groups of core monomers 31; when the first extrusion block 550 passes over the first action protrusion 520, the disassembly block 53 is reset under the elastic action of the reset spring 54 (while resetting, the squeezing effect is released to leave space for the movement of other core monomers 31); the driving unit 56 drives the driving ring 55 to rotate, and after completing the stretching operation of all the core monomers 31, the lifting assembly 51 drives the central column 50 upward;

[0033] By applying the method of the present application, the drive ring 55 can complete the squeezing and stretching operations of all the core monomers by rotating 180 degrees, which greatly improves the efficiency. At the same time, there is no need for repeated positioning, avoiding the risk of workpiece damage caused by multiple positioning.

[0034] Preferably, the device also includes a processing table, on which a feeding conveyor belt 6 for feeding the iron core is arranged, and a plurality of material partition plates 60 arranged side by side are arranged on the feeding conveyor belt 6, and the plurality of material partition plates 60 divide the feeding conveyor belt 6 into a plurality of feeding channels, and a first material transfer robot 7 spanning the tail ends of the plurality of feeding channels, a material transfer assembly 8 located on one side of the feeding conveyor belt, and a visual inspection unit 9 are arranged on the processing table, the first material transfer robot 7 is used to transfer the iron core at the tail end of the feeding channel to the material transfer assembly 8, and the material transfer assembly 8 is used to transfer the iron core Transfer to the visual inspection unit 9 for visual inspection; a second material transfer robot 10, a laser coding unit 11 and a waste recovery unit 12 are arranged on the processing table; the second material transfer robot 10 is used to move the iron cores that have passed the visual inspection on the material transfer component 8 to the laser coding unit 11 for coding (numbering each iron core monomer to facilitate subsequent winding assembly and other operations), move the coded iron cores to the dividing turntable 1, and move the iron cores that have failed the visual inspection on the material transfer component 8 to the waste recovery unit 12.

[0035] Preferably, the dismantling ring 52 is provided with a plurality of longitudinal slots 521 corresponding to the dismantling blocks 53 one by one, and a plurality of parallel guide rods 522 distributed along the radial direction of the dismantling ring are longitudinally arranged in the longitudinal slots 521, and a return spring 54 is sleeved on one or more guide rods 522, and the dismantling block 53 is provided with guide holes corresponding to the guide rods 522; the outer surface of the dismantling ring 52 is sleeved with a rotating bearing 56, and the inner ring of the rotating bearing 56 is fixedly connected to the outer surface of the dismantling ring 52 , the outer ring of the rotary bearing 56 is fixedly connected to the inner wall of the driving ring 55; a second action protrusion 523 is arranged on the outer surface of the part where the lower end of the dismantling block 53 passes through the lower surface of the dismantling ring 52, and a group of second extrusion blocks 551 cooperating with the second action protrusion 523 are symmetrically arranged on the inner wall of the driving ring 55; the first action protrusion 520 and the second action protrusion 523 are arranged opposite to each other and have the same structure; the first extrusion block 550 and the second extrusion block 551 are arranged opposite to each other and have the same structure;

[0036] By adopting this structural design, the driving part that plays the role of expansion can be better accommodated in a relatively closed chamber to avoid external interference. At the same time, the simultaneous extrusion method from top to bottom can effectively ensure the stability of the movement of the dismantling round block 53 and reduce lateral force.

[0037] Preferably, the upper end of the driving ring 55 is higher than the upper end of the disassembly ring 52, and a motor seat 58 for mounting and fixing the driving unit 56 is provided on the central column 50. A gear ring 59 is coaxially provided on the upper end of the driving ring 55, and the driving unit 56 includes a driving gear 560 meshing with the gear ring and a driving motor 561 driving the driving gear to rotate; the structure is simple and the driving stability is good; the driving structure here can be equivalently replaced by other existing rotating driving mechanisms, and there is no limitation on this.

[0038] Preferably, two positioning pins 500 are provided at the bottom end of the center column 50, and two positioning holes cooperating with the positioning pins are provided at the upper end of the positioning column 41; the positioning reliability is good, and displacement is not likely to occur during the expansion operation.

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

[0040] A method for loading and unrolling an iron core, using the above-mentioned iron core loading and unrolling device, such as Figure 5 As shown, the method comprises the steps of:

[0041] S01: Load the iron core onto the positioning fixture, and use the positioning column to position the iron core. The indexing turntable rotates to send the iron core to the bottom of the decircling assembly, and the center column is directly opposite to the positioning column;

[0042] S02: The lifting assembly drives the central column downward, and the lower ends of the dismantling round blocks respectively enter the separation grooves of the iron core, and there are gaps between the dismantling round blocks and the inner wall, left inner wall and right inner wall of the separation groove;

[0043] S03: The driving unit drives the driving ring to rotate, and then drives the two first extrusion blocks to rotate. When the first extrusion block contacts the first action protrusion, the first extrusion block continues to rotate to squeeze the first action protrusion, so that the corresponding debonding block moves toward the axis of the central column, and squeezes and stretches apart the corresponding two groups of iron core monomers; when the first extrusion block passes over the first action protrusion, the debonding block is reset under the elastic action of the reset spring;

[0044] S04: The driving unit drives the driving ring to rotate. After the expansion operation of all the core monomers is completed, the lifting assembly drives the central column upward to reset;

[0045] By applying the method of the present application, the extrusion and expansion operations of all core monomers can be completed by rotating the drive ring 180 degrees, which greatly improves the efficiency. At the same time, there is no need for repeated positioning, thus avoiding the risk of workpiece damage caused by multiple positioning.

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

Claims

1. A core feeding and de-rounding device, characterized in that: It includes a dividing turntable and a mounting bracket located on one side of the dividing turntable; the dividing turntable is provided with a plurality of positioning jigs for positioning the iron core, the positioning jig is provided with a positioning groove and a positioning column located at the center of the positioning groove, the positioning column 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 provided with a circle-splitting component, the circle-splitting component includes a center column coaxial with and facing the positioning column and a lifting component that drives the center column to rise and fall, the center column is provided with a circle-splitting ring, and the upper edge of the circle-splitting ring An even number of dismantling blocks with isosceles trapezoidal cross-sections are radially slidingly arranged, and the multiple dismantling blocks are evenly distributed around the axis of the dismantling ring; the dismantling ring is provided with multiple reset springs corresponding to each other for resetting the dismantling blocks; the upper end of the dismantling block passes through the upper surface of the dismantling ring and a first arc-shaped action protrusion is arranged on the outer surface of the passing part; a driving ring is coaxially rotatably arranged on the center column, and a group of first extrusion blocks cooperating with the first action protrusion are symmetrically arranged on the inner wall of the driving ring, and a driving unit for driving the driving ring to rotate is arranged on the center column.

2. The core feeding and de-rounding device according to claim 1, characterized in that: The circle-breaking ring is provided with a plurality of longitudinal grooves corresponding one to one with the circle-breaking blocks, and a plurality of parallel guide rods distributed radially along the circle-breaking ring are longitudinally distributed in the longitudinal grooves, and the return spring is sleeved on one or more of the guide rods, and the circle-breaking block is provided with guide holes corresponding to the guide rods.

3. The core feeding and de-rounding device according to claim 2, characterized in that: The outer sleeve of the disassembling ring is provided with a rotating bearing, the inner ring of the rotating bearing is fixedly connected to the outer surface of the disassembling ring, and the outer ring of the rotating bearing is fixedly connected to the inner wall of the driving ring; a second functional protrusion is provided on the outer surface of the part where the lower end of the disassembling block passes through the lower surface of the disassembling ring, and a group of second extrusion blocks cooperating with the second functional protrusion are symmetrically provided on the inner wall of the driving ring.

4. The core loading and de-rounding device according to claim 3, characterized in that: The first action protrusion and the second action protrusion are arranged opposite to each other.

5. The core loading and de-rounding device according to claim 3, characterized in that: The upper end of the driving ring is higher than the upper end of the disassembling ring, and a motor seat for mounting and fixing the driving unit is arranged on the central column. A gear ring is coaxially arranged on the upper end of the driving ring, and the driving unit includes a driving gear meshing with the gear ring and a driving motor for driving the driving gear to rotate.

6. The core feeding and de-rounding device according to claim 1, characterized in that: The bottom end of the center column is provided with two positioning pins, and the upper end of the positioning column is provided with two positioning holes matched with the positioning pins.

7. The core loading and de-rounding device according to claim 1, characterized in that: The lifting assembly comprises a lifting cylinder, and a movable end of the lifting cylinder is fixedly connected to the central column.

8. The core feeding and de-rounding device according to claim 1, characterized in that: The device also includes a processing table, on which is disposed a loading conveyor belt for feeding iron cores, on which are disposed a plurality of side-by-side partition plates, which divide the loading conveyor belt into a plurality of feeding channels, and on which are disposed a first material moving robot spanning the tail ends of the plurality of feeding channels, a material moving assembly located on one side of the loading conveyor belt, and a visual inspection unit, wherein the first material moving robot is used for moving the iron core at the tail end of the feeding channel to the material moving assembly, and the material moving assembly is used for moving the iron core to the visual inspection unit for visual inspection.

9. The core feeding and de-rounding device according to claim 8, characterized in that: The processing table is provided with a second material transfer robot, a laser coding unit and a waste recovery unit; the second material transfer robot is used to move the iron cores that pass the visual inspection on the material transfer component to the laser coding unit for coding, move the coded iron cores to the dividing turntable, and move the iron cores that fail the visual inspection on the material transfer component to the waste recovery unit.

10. A method for feeding and de-rounding an iron core, using the iron core feeding and de-rounding device as claimed in any one of claims 1 to 9, characterized in that: The method comprises the steps of: Load the iron core onto the positioning fixture, and use the positioning column to position the iron core. The indexing turntable rotates to send the iron core to the bottom of the decircling assembly, and the center column faces the positioning column. The lifting assembly drives the central column downward, and the lower ends of the dismantling round blocks respectively enter the separation grooves of the iron core, and there are gaps between the dismantling round blocks and the inner wall, left inner wall and right inner wall of the separation groove; The driving unit drives the driving ring to rotate, and then drives the two first extrusion blocks to rotate. When the first extrusion block contacts the first action protrusion, the first extrusion block continues to rotate to squeeze the first action protrusion, so that the corresponding debonding block moves toward the axis of the central column, and squeezes and stretches apart the corresponding two groups of iron core monomers; when the first extrusion block passes over the first action protrusion, the debonding block is reset under the elastic action of the reset spring; The driving unit drives the driving ring to rotate, and after completing the expansion operation of all the core monomers, the lifting assembly drives the center column to move upward and reset.

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