Method for tearing back adhesive of brushless direct current motor stator

Abstract

The present application belongs to the motor processing technical field, especially relates to a kind of brushless DC motor stator tear back glue method, including the stator to be torn back glue is grabbed, is moved and placed on base;The state of the stator is kept, and separating block is inserted between the back glue of the bottom PCB of the stator;With the abutment of separating block below positioning block and separating block, the back glue is clamped between the abutted surface of the positioning block and the separating block;The separating block and the positioning block are synchronously moved away from the base direction, and the back glue is completely separated and pulled out;The separating block and the positioning block are separated, and the back glue falls;The stator of separating back glue on base is taken away, and the step S1 is repeated to circulate operation, and the back glue of stator PCB is automatically peeled off by the above method steps, and production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of motor processing technology, and particularly relates to a method for peeling off the adhesive backing of a brushless DC motor stator. Background Technology

[0002] In the production process of brushless DC motor (BLDC) stator components, the adhesive on the PCB board (mostly Hall sensor boards or driver boards) is essentially a release paper for a temporary protective film or functional adhesive layer, which needs to be removed before assembly. On the one hand, the adhesive serves as a protective layer during transportation and storage, preventing the PCB pads and circuits from being scratched or contaminated. Removing it in advance can lead to PCB oxidation or damage during winding, impregnation, and other processes. On the other hand, after the stator winding and impregnation have cured, removing the adhesive can ensure the PCB surface is clean, ensuring welding quality, and allowing the adhesive (such as thermally conductive double-sided tape or structural adhesive) to firmly bond to the stator end cap or core, thereby achieving the functions of electrical connection, heat dissipation, and structural fixation. At the same time, it avoids residual adhesive layers affecting insulation performance or causing assembly jamming.

[0003] In existing technologies, the adhesive on the PCB is manually separated during the peeling process. However, this method of separating PCB adhesive is characterized by high labor costs and low efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a method for peeling back adhesive from the stator of a brushless DC motor, which aims to solve the technical problem of low efficiency in peeling back adhesive from the stator in the prior art and achieve efficient peeling of back adhesive from the stator.

[0005] To achieve the above objectives, embodiments of the present invention provide a method for peeling back adhesive from the stator of a brushless DC motor, including... S1: Grab the stator with the adhesive backing to be peeled off, and move it to place it on the base; S2: While maintaining the gripping state of the stator, insert a separation block between the bottom PCB board of the stator and the adhesive backing; S3: A positioning block is used below the separating block to abut against the separating block, and the adhesive backing is clamped between the positioning block and the abutting surface of the separating block; S4: The separating block and the positioning block move synchronously in a direction away from the base to completely separate and pull out the adhesive backing; S5: Separate the separating block from the positioning block, and the adhesive backing falls off; S6: Remove the stator from the base after the adhesive has been separated, and repeat step S1 in a cyclical manner.

[0006] Preferably, in step S2, the bottom of the separating block is provided with a separating inclined surface, which is inclined from bottom to top toward the base, and the angle between the separating inclined surface and the top plane of the separating block is an acute angle.

[0007] Preferably, the included angle ranges from 30° to 40°.

[0008] Preferably, the separating block is composed of an mounting part, a connecting part, and a separating part. The mounting part is vertically connected to the side of the connecting part near the bottom. One end of the separating part is vertically connected to the side of the connecting part near the top. The separating inclined surface is disposed at the bottom of the separating part near the other edge. The separating part and the mounting part are respectively located on both sides of the connecting part.

[0009] Preferably, in step S3, the positioning block is provided with a pressing inclined surface, the inclination angle of the pressing inclined surface is the same as the inclination angle of the separating inclined surface, and the pressing inclined surface and the inclined inclined surface clamp the adhesive backing.

[0010] Preferably, in step S1, the base is cylindrical, and the top of the base near the edge is provided with a support protrusion and two anti-wrinkle protrusions at intervals. The two anti-wrinkle protrusions are arranged opposite each other and opposite to the separating block. The two anti-wrinkle protrusions are located on both sides of the moving path of the separating block. The edge of the PCB board protrudes into the area between the two anti-wrinkle protrusions. The separating block is inserted between the protruding part of the anti-wrinkle protrusion and the adhesive backing. The support protrusion is located on the moving path of the separating block.

[0011] Preferably, the bottom of the base is provided with a first clearance slope, which is located below the two anti-wrinkle protrusions and is inclined from bottom to top toward the separation block.

[0012] Preferably, the positioning block has a second clearance slope on the side facing the base, and the inclination angle of the second clearance slope is the same as that of the first clearance slope.

[0013] Preferably, in step S4, the base, the separating block, and the positioning block move synchronously, causing the adhesive backing to move and separate from the stator.

[0014] The above-mentioned technical solutions in the brushless DC motor stator adhesive peeling method provided in the embodiments of the present invention have at least one of the following technical effects: The invention discloses a method for removing adhesive backing from the stator of a brushless DC motor. The method involves grasping the motor stator and placing it on a base with the PCB board underneath. A separating block is inserted from the side of the stator, between the PCB board and the adhesive backing. Positioning blocks are then positioned below each separating block and move upwards, clamping the adhesive backing at the edge of the PCB board. By pulling the adhesive backing, it is separated from the PCB board. The motor stator is then removed. This process is repeated to remove the adhesive backing from the bottom of the PCB board. This automatic separation of the adhesive backing from the PCB board of the motor stator effectively improves the processing efficiency of brushless DC motors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, 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.

[0016] Figure 1 A flowchart of the adhesive peeling method provided in an embodiment of the present invention.

[0017] Figure 2 A diagram illustrating the action steps of the adhesive-removing method provided in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the adhesive-removing device for the adhesive-removing method provided in an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the effect of the first moving mechanism of the adhesive peeling device in the adhesive peeling method provided in the embodiment of the present invention.

[0020] Figure 5 This is a rendering of the base of the adhesive-removing device for the adhesive-removing method provided in an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the positioning block of the adhesive-removing device for the adhesive-removing method provided in an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the second moving mechanism of the adhesive-removing device in the adhesive-removing method provided in an embodiment of the present invention.

[0023] Figure 8 A schematic diagram of the separation block of the adhesive-removing device in the adhesive-removing method provided in this embodiment of the invention.

[0024] Figure 9 This is a schematic diagram of the material handling mechanism of the adhesive peeling device for the adhesive peeling method provided in an embodiment of the present invention.

[0025] The following are the labeling elements in the figure: 10—Stator 11—PCB board 12—Adhesive backing 20—First moving mechanism; 21—First support plate; 22—Moving cylinder 23—Carrier plate 24—Mounting bracket 30—Lifting mechanism 31—Lifting cylinder; 32—Mounting block; 40—Base 41—Supporting protrusion 42—Anti-wrinkle protrusion 43—First clearance slope 50—Positioning block; 51—Pressure ramp; 52—Second avoidance ramp 60—Second moving mechanism; 61—Second support plate; 62—Linear module 63—Extension plate; 70—Separation block; 71—Mounting section 72—Connecting part; 73—Separating part; 80—Material handling mechanism 81—Mounting plate 82—Lifting electric cylinder 83—Assembly plate 84—Clamping assembly; 85—Positioning assembly; 231—Support rod 731—Separation Inclined Surface; 831—Moving Part; 841—Finger Cylinder 842—First clamping plate; 843—Second clamping plate; 851—Buffer cylinder 852—Positioning sleeve; 853—Connecting rod; 854—Buffer spring 855—Assembly Block. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0030] In one embodiment of the present invention, such as Figures 1-2 As shown, a method for peeling the adhesive backing 12 from the stator 10 of a brushless DC motor is provided, which specifically includes the following steps: S1: Grab the brushless DC motor stator 10 (hereinafter referred to as stator 10) with adhesive backing 12 on the back of the PCB board 11, and place the stator 10 on the base 40. The base 40 is cylindrical, and a support protrusion 41 and two anti-wrinkle protrusions 42 are provided on the upper surface of the base 40. The support protrusion 41 and the two anti-wrinkle protrusions 42 are spaced apart along the edge of the upper surface of the base 40, and the two anti-wrinkle protrusions 42 are positioned opposite each other. The stator 10 is placed on the support protrusion 41 and the two anti-wrinkle protrusions 42, and the area of ​​the PCB board 11 at the bottom of the stator 10 is at least the same as the circular cross-section of the base 40. At this time, a part of the edge of the PCB board 11 will protrude beyond the two anti-wrinkle protrusions 42. The area between the two anti-wrinkle protrusions 42 is designed with a notch on the base 40. The notch is located between the two anti-wrinkle protrusions 42. The notch facilitates the processing of the two anti-wrinkle protrusions 42. The support protrusion 41 is located on the moving path of the separating block 70. It works with the two anti-wrinkle protrusions 42 to support the stator 10, ensuring that the stator 10 is placed stably. When the separating block 70 is inserted from the edge between the adhesive backing 12 and the stator 10, the adhesive backing 12 will not be wrinkled due to the support and limitation of the anti-wrinkle protrusions 42. This causes the adhesive backing 12 to be pushed by the separating block 70 when it is inserted, and the contact position is moved backward so that there is no misalignment or overlap between the adhesive backing 12 and the separating block 70, which would affect the subsequent clamping action.

[0031] S2: The stator 10 remains in the gripped state. The separating block 70 is inserted from one side of the two anti-wrinkle protrusions 42 into the part of the PCB board 11 that protrudes from the edge of the two anti-wrinkle protrusions 42. At this time, the two anti-wrinkle protrusions 42 are positioned opposite to the separating block 70, and the two anti-wrinkle protrusions 42 are located on both sides of the moving path of the separating block 70. When the separating block 70 abuts against the two anti-wrinkle protrusions 42, the PCB board 11 and the adhesive 12 in that part are separated.

[0032] The separating block 70 is integrally formed from the mounting part 71, the connecting part 72, and the separating part 73. The mounting part 71 and the separating part 73 are perpendicular to the two sides of the connecting part 72, so that the connecting part 72 is located between the mounting part 71 and the separating part 73. The mounting part 71 is close to the bottom end of the connecting part 72, and the separating part 73 is close to the top end of the connecting part 72. The mounting part 71 and the separating part 73 are arranged parallel to each other. A separating inclined surface 731 is provided at the bottom of the separating part 73 near the other end, extending from bottom to top in a direction away from the connecting part 72. The angle between the separating inclined surface 731 and the top plane of the separating part 73 can be an acute angle of 30° to 40°. By setting the acute angle, the separating part 73 can be smoothly inserted between the PCB board 11 and the adhesive 12 for separation. The mounting part 71 is used to fix the separating block 70.

[0033] S3: After the separating part 73 is inserted between the PCB board 11 and the adhesive 12, a positioning block 50 rises in the lower direction of the separating part 73. A pressing slope 51 is provided near one edge. The inclination angle of the pressing slope 51 is the same as the inclination angle of the separating slope 731. After the positioning block 50 moves up to a certain height, the pressing slope 51 and the separating slope 731 are tightly attached, and the adhesive 12 separated by the separating part 73 in step S2 is clamped between the separating slope 731 and the pressing slope 51.

[0034] Since the positioning block 50 will overlap with the base 40 during the upward movement, a first avoidance slope 43 is provided below the base 40, and the first avoidance slope 43 is located below the two anti-wrinkle protrusions 42. The first avoidance slope 43 is inclined from bottom to top towards the positioning block 50 and the separating block 70. A second avoidance slope 52 is provided on the side opposite to the pressing slope 51 on the top of the positioning block 50. The second avoidance slope 52 is inclined from bottom to top away from the base 40. The avoidance slope is located below the base 40. The first avoidance slope 43 and the second avoidance slope 52 have the same inclination angle. During the upward movement of the positioning block 50, the pressing slope 51 and the separating slope 731 are tightly attached to the adhesive backing 12. The first avoidance slope 43 and the second avoidance slope 52 are attached to each other to ensure the tight clamping effect between the separating slope 731 and the pressing slope 51.

[0035] S4: Due to the low adhesion between the adhesive 12 and the PCB board 11, after the separation block 70 and the positioning block 50 clamp the adhesive 12, they pull the adhesive 12 to move horizontally and peel it off from the stator 10. During the movement, the base 40 moves synchronously to support and peel the adhesive 12 off from under the PCB board 11 of the stator 10.

[0036] S5: Separate the separation block 70 and the positioning block 50, and collect the fallen adhesive 12.

[0037] S6: Transfer the stator 10 after peeling off the adhesive backing 12 to complete the task.

[0038] In another embodiment of the invention, such as Figure 3 As shown, a backing adhesive tearing device is provided to cooperate with the above method steps to realize the automatic separation of the backing adhesive 12 on the bottom of the stator 10. The backing adhesive tearing device is composed of a first moving mechanism 20, a second moving mechanism 60, a lifting mechanism 30 and a material picking mechanism 80, wherein... like Figures 3-4 As shown, the first moving mechanism 20 consists of two first support plates 21, two moving cylinders 22, a carrier plate 23, and a mounting bracket 24. The two first support plates are fixedly mounted on the platform of the equipment. The two moving cylinders 22 are respectively fixedly mounted on the top plane of the two first support plates, and the moving ends of the two moving cylinders 22 face the same direction. The moving paths of the moving ends of the two moving cylinders 22 are parallel to each other. Two locking blocks are provided at the bottom of the carrier plate 23. A U-shaped mounting hole is opened on the side of the locking block at the bottom position. The U-shaped mounting hole penetrates the locking block, and the opening of the U-shaped mounting hole is located on the bottom surface of the locking block. The two locking blocks are located near the two ends of the carrier plate 23, and the openings of the two U-shaped mounting holes face downwards and are locked and fixed to the moving ends of the two moving cylinders 22. The two moving cylinders 22 push the two locking blocks to move, thereby moving the entire carrier plate 23. On the side of the carrier plate 23 facing the same direction as the moving ends of the two moving cylinders 22, there are locking grooves spaced apart. Each locking groove extends vertically through the carrier plate 23. Correspondingly, multiple locking blocks are assembled according to the number of locking grooves. The locking blocks are assembled with locking holes opened on the side of the carrier plate 23 by screws. Each locking block covers each locking groove. Correspondingly, a limiting groove is opened on the side of each locking block. The limiting groove extends vertically through the locking block. Each limiting groove is opposite to each locking groove. A support rod 231 is assembled between the limiting groove and the locking groove. The support rod 231 is clamped near the bottom by the limiting groove and the locking groove. The support rod 231 extends upward and a base 40 is fixedly installed at the top. On the side of the carrier plate 23 facing opposite to the moving ends of the two moving cylinders 22, a clearance opening extends vertically through the carrier plate 23. The clearance opening is located in the center of this side.

[0039] like Figures 4-5As shown, the base 40 is cylindrical. A support protrusion 41 and two anti-wrinkle protrusions 42 are provided on the upper surface of the base 40. The support protrusion 41 and the two anti-wrinkle protrusions 42 are spaced apart along the edge of the upper surface of the base 40, with the two anti-wrinkle protrusions 42 facing each other. A clearance notch is provided vertically through the base 40, located between the two anti-wrinkle protrusions 42. The support protrusion 41 is located on the moving path of the separating block 70, cooperating with the two anti-wrinkle protrusions 42 to support the stator 10, ensuring the stator 10 is placed stably. Furthermore, when the separating block 70 moves from the edge... When the adhesive backing 12 is inserted between the stator 10, the adhesive backing 12 will not be wrinkled due to the support and limitation of the anti-wrinkle protrusion 42. As a result, when the separator block 70 is inserted, the adhesive backing 12 is pushed by the separator block 70, and the contact position is moved backward, so that there will be no misalignment or overlap between the adhesive backing 12 and the separator block 70, which will affect the subsequent clamping action. A first avoidance slope 43 is set below the base 40, and the first avoidance slope 43 is located below the two anti-wrinkle protrusions 42. The first avoidance slope 43 is inclined from bottom to top towards the positioning block 50 and the separator block 70.

[0040] like Figure 4 As shown, the mounting frame 24 is fixedly installed on the top plane of the carrier plate 23, and the mounting frame 24 is adjacent to each support rod 231. Multiple lifting mechanisms 30 are fixedly installed side by side in the mounting frame 24. Each lifting mechanism 30 is arranged opposite to each support rod 231. Each lifting mechanism 30 consists of a lifting cylinder 31 and a mounting block 32. Each lifting cylinder 31 is fixedly installed side by side in the mounting frame 24 with its lifting end facing upward. Each mounting block 32 is fixedly installed on the top end of the lifting end of each lifting cylinder 31. A mounting groove is opened on the top plane of each mounting block 32, penetrating both sides of the mounting block 32. Each mounting groove is equipped with a positioning block 50, which can be assembled by means of snap-fit, screw locking, adhesive bonding, etc. At the same time, each positioning block 50 is arranged adjacent to each support rod 231. When the lifting cylinder 31 pushes the mounting block 32 upward, each positioning block 50 can be arranged adjacent to each base 40.

[0041] like Figure 6 As shown, a pressing slope 51 is provided on the top of the positioning block 50. The pressing slope 51 is set away from each mounting seat and is inclined from top to bottom in a direction away from the base 40. During the upward movement of the positioning block 50, there will be a part that overlaps with the base 40. A second avoidance slope 52 is provided on the top of the positioning block 50. The second avoidance slope 52 is inclined from top to bottom in a direction close to the base 40. The inclination angles of the first avoidance slope 43 and the second avoidance slope 52 are the same. After rising to the position, the first avoidance slope 43 and the second avoidance slope 52 fit together.

[0042] like Figure 7As shown, the second moving mechanism 60 is assembled from a second support plate 61, a linear module 62, and an extension plate 63. The second support plate 61 is fixedly installed on the equipment table. The linear module 62 is fixedly installed on the top of the second support plate 61, and one end of the linear module 62 extends into the clearance opening. The moving path of the linear module 62 is parallel to the moving path of the two moving cylinders 22. The extension plate 63 is fixedly installed on the moving end of the linear module 62, and the end of the extension plate 63 extends toward the base 40. Each separation block 70 is fixedly installed at intervals on the top of the extension plate 63 at the extension end. Each separation block 70 is arranged opposite to each positioning block 50. The moving end of the linear module 62 drives the extension plate 63 to move, so that each separation block 70 moves closer to and away from the base 40 to separate the adhesive 12 and the PCB board 11.

[0043] like Figure 8 As shown, the separating block 70 is integrally formed from a mounting part 71, a connecting part 72, and a separating part 73. The mounting part 71 and the separating part 73 are perpendicular to the two sides of the connecting part 72, with the connecting part 72 positioned between the mounting part 71 and the separating part 73. The mounting part 71 is located near the bottom of the connecting part 72, and the separating part 73 is located near the top of the connecting part 72. The mounting part 71 and the separating part 73 are arranged parallel to each other. At the bottom of the separating part 73, near the other end, a direction extending upwards away from the connecting part 72 is provided. The inclined separation slope 731 extends at an angle of 30°, 35° or 40° between itself and the top plane of the separation part 73. The angle between the separation slope 731 and the clamping slope 51 is the same. By setting the acute angle, the separation part 73 can be smoothly inserted between the PCB board 11 and the adhesive 12 for separation. Then, after the positioning block 50 rises, the clamping slope 51 and the separation slope 731 are pressed tightly against the adhesive 12. The mounting part 71 is fixedly installed on the upper surface of the extension plate 63 near the edge of the extension end.

[0044] like Figure 9As shown, the material handling mechanism 80 is assembled from a mounting plate 81, a lifting cylinder 82, an assembly plate 83, a clamping assembly 84, and a positioning assembly 85. The mounting plate 81 is fixedly installed on the displacement end of the equipment. A lifting cylinder 82 is fixedly installed on the top of the mounting plate 81. A through hole is provided on the mounting plate 81, extending vertically through it. The moving end of the lifting cylinder 82 extends downward through the through hole. An assembly plate 83 is fixedly installed on the bottom of the mounting plate 81, perpendicular to the bottom plane of the mounting plate 81. Four clamping assemblies 84 are fixedly installed at intervals. Each clamping assembly 84 has a finger cylinder 841 fixedly installed at the bottom of the assembly plate 83, with the moving end of each finger cylinder 841 facing downwards. A first clamping plate 842 and a second clamping plate 843 are fixedly installed on the two moving ends of each finger cylinder 841, respectively. The first clamping plate 842 and the second clamping plate 843 are mirror-symmetrically arranged and can move to correspond to the top of the base 40. Two movable parts 831 are slidably installed on the side of the assembly plate 83. The moving end of the lifting cylinder 82 extends downward between the two moving parts 831, and two limiting blocks are provided on the opposite sides of the two moving parts 831. Two annular limiting protrusions are provided at intervals on the side of the moving end of the lifting cylinder 82, and the two limiting blocks are engaged between the two limiting protrusions. The up and down movement of the moving end of the lifting cylinder 82 drives the engaged two limiting blocks, thereby pushing the two moving parts 831 to slide up and down relative to the assembly plate 83. Positioning components 85 are installed on both limiting parts, and two positioning points are provided at the bottom of each positioning component 85. The four positioning ends are located between the four sets of first clamping plates 842 and second clamping plates 843 respectively. After the stator 10 is positioned by inserting each positioning end into the through hole on the stator 10, the first clamping plates 842 and second clamping plates 843 clamp and fix the stator 10 under the action of the finger cylinder 841. The entire material picking mechanism 80 is moved above each base 40. The entire material picking mechanism 80 is lowered so that each stator 10 is placed on the base 40 and contacts the support protrusion 41 and the two anti-wrinkle protrusions 42. Then the adhesive 12 is peeled off.

[0045] like Figure 9As shown, each positioning component 85 is assembled from two buffer cylinders 851, two positioning sleeves 852, two connecting rods 853, two buffer springs 854, and an assembly block 855. The assembly block 855 is fixedly installed at the bottom end of the moving part 831, and the moving part 831 is connected to the center of the top plane of the assembly block 855. The two buffer cylinders 851 are fixedly installed on both sides of the moving part 831, with the moving ends of the two buffer cylinders 851 facing downwards. The positions on the assembly block 855 near both ends are... The assembly has two movable through holes, through which two connecting rods 853 pass. The top ends of the two connecting rods 853 are fixedly connected to the moving ends of the two buffer cylinders 851. Two buffer springs 854 are respectively sleeved on the two connecting rods 853, and one end of each buffer spring 854 abuts against the bottom plane of the assembly block 855. One end of each positioning sleeve 852 passes through the two movable through holes and is movably installed in the two movable through holes. A limiting device is provided on the side of the positioning sleeve 852 near the top opening. The positioning ring has an outer radius larger than that of the through hole to prevent the positioning sleeve 852 from continuously moving downwards and disengaging from the through hole. Two connecting rods 853 extend downwards through the two positioning sleeves 852 respectively. Annular protrusions are provided on the sides of the positioning sleeves 852 near their bottom ends, and the other ends of the two buffer springs 854 abut against the tops of the two annular protrusions. Both positioning sleeves 852 extend downwards between the first clamping plate 842 and the second clamping plate 843. When pressed down, the buffer air... Cylinder 851 drives one end of connecting rod 853 to extend downwards outside the bottom opening of positioning sleeve 852 for initial positioning of stator 10. The through hole on stator 10 extends into the bottom end of positioning sleeve 852 along the end of connecting rod 853. The buffer spring 854 presses down positioning sleeve 852 to accurately position stator 10. At the same time, buffer cylinder 851 drives connecting rod 853 to move upwards and hide in positioning sleeve 852. First clamping plate 842 and second clamping plate 843 clamp stator 10.

[0046] In use, the entire material handling mechanism 80 moves downward on the equipment, with the lifting cylinder 82 moving downward to drive the positioning component 85 closer to the stator 10 to be handled. The finger cylinder 841 separates the first clamping plate 842 and the second clamping plate 843, creating space for the positioning sleeves 852 of the positioning component 85 to move. The moving end of the buffer cylinder 851 pushes the connecting rod 853 out of the positioning sleeve 852 to locate the through hole of the stator 10. Then, the lifting cylinder 82 pushes the entire assembly downward to position the stator 10. The positioning sleeves 852 smoothly position the through holes of each stator 10. The buffer cylinder 851 drives the connecting rod 853 upward to hide it in the positioning sleeve 852. The lifting cylinder 82 moves upward, driving the entire positioning component 85 upward, moving each stator 10 between the first clamping plate 842 and the second clamping plate 843. The two clamping plates 843 clamp the stator 10, and the entire material handling mechanism 80 moves to above each base 40. It moves down to place the stator 10 on the base 40. The moving end of the linear module 62 moves so that each separating block 70 is inserted between the PCB board 11 and the adhesive backing 12 of the stator 10. The edge of the adhesive backing 12 separates from the PCB board 11 of the stator 10 along the separating slope 731. The lifting cylinder 31 drives each positioning block 50 to move up. The pressing slope 51 on the positioning block 50 cooperates with the separating slope 731 to clamp the part of the adhesive backing 12 separated by the separating block 70. The moving cylinder 22 and the linear module 62 simultaneously drive the base 40, the separating block 70 and the positioning block 50 to move, thereby separating the adhesive backing 12 from the PCB board 11 of the stator 10. Through the above structural settings, the production line automatically separates the adhesive backing 12 from the PCB board 11 of the stator 10.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for peeling off the adhesive backing of a brushless DC motor stator, characterized in that: include S1: Grab the stator with the adhesive backing to be peeled off, and move it to place it on the base; S2: While maintaining the gripping state of the stator, insert a separation block between the bottom PCB board of the stator and the adhesive backing; S3: A positioning block is used below the separating block to abut against the separating block, and the adhesive backing is clamped between the positioning block and the abutting surface of the separating block; S4: The separating block and the positioning block move synchronously in a direction away from the base to completely separate and pull out the adhesive backing; S5: Separate the separating block from the positioning block, and the adhesive backing falls off; S6: Remove the stator from the base after the adhesive has been separated, and repeat step S1 in a cyclical manner.

2. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 1, characterized in that: In step S2, a separation slope is provided at the bottom of the separation block. The separation slope is inclined from bottom to top toward the base, and the angle between the separation slope and the top plane of the separation block is an acute angle.

3. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 2, characterized in that: The included angle ranges from 30° to 40°.

4. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 2, characterized in that: The separating block consists of an installation part, a connecting part, and a separating part. The installation part is vertically connected to the side of the connecting part near the bottom. One end of the separating part is vertically connected to the side of the connecting part near the top. The separating inclined surface is located at the bottom of the separating part near the other edge. The separating part and the installation part are located on both sides of the connecting part.

5. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 2, characterized in that: In step S3, the positioning block is provided with a pressing inclined surface, the inclination angle of the pressing inclined surface is the same as the inclination angle of the separating inclined surface, and the pressing inclined surface and the inclined inclined surface clamp the adhesive backing.

6. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 1, characterized in that: In step S1, the base is cylindrical, and the top of the base near the edge is provided with a support protrusion and two anti-wrinkle protrusions at intervals. The two anti-wrinkle protrusions are arranged opposite each other and opposite to the separation block. The two anti-wrinkle protrusions are located on both sides of the moving path of the separation block. The edge of the PCB board protrudes into the area between the two anti-wrinkle protrusions. The separation block is inserted between the protruding part of the anti-wrinkle protrusion and the adhesive backing. The support protrusion is located on the moving path of the separation block.

7. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 6, characterized in that: The base has a first clearance slope at the bottom, which is located below the two anti-wrinkle protrusions and is inclined from bottom to top toward the separation block.

8. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 7, characterized in that: The positioning block has a second clearance slope on its side facing the base, and the inclination angle of the second clearance slope is the same as that of the first clearance slope.

9. The method for peeling back adhesive from the stator of a brushless DC motor according to claim 1, characterized in that: In step S4, the base, the separating block, and the positioning block move synchronously, causing the adhesive backing to move and separate from the stator.

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