Feeding device for unwound stator

Abstract

The application provides a feeding device for an unwound stator. The feeding device comprises a three-dimensional movement mechanism and a pick-and-place element, the pick-and-place element is installed on the three-dimensional movement mechanism and constitutes a stator conveying assembly; the pick-and-place element can approach or move away from a stator tool. The stator conveying assembly limits the stator through its structure, transports the stator and fixes the stator on a stator fixing assembly. The feeding device for the unwound stator is convenient and fast, and is especially suitable for automatic feeding of an unwound stator winding machine.

Description

Technical Field

[0001] This invention belongs to the technical field of stator production equipment, specifically relating to a feeding device for unfolded stators. Background Technology

[0002] Patent application CN202220721562.5 provides a multi-size stator fixture and winding machine. The stator fixture is used for unfolded stators, such as hinged stators or segmented stators. This stator fixture is a clamping type and has two states: open and clamped. It can clamp stators of various sizes by moving the upper pressure plate relative to the main body. Summary of the Invention

[0003] Based on the above-mentioned clamping stator fixture structure, the present invention provides a feeding device for an unfoldable stator, which can position the assembled stator on the clamping stator fixture, or assemble the plastic frame and iron core and then fix them on the stator fixture.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0005] As a technical solution for realizing the basic concept of this invention, an automatic feeding mechanism is used. This solution includes: a feeding device for an unfoldable stator, comprising a three-dimensional motion mechanism and a pick-and-place element, wherein the pick-and-place element is mounted on the three-dimensional motion mechanism to form a stator conveying assembly; the pick-and-place element can move closer to or further away from the stator fixture. The above technical solution achieves the function of movable pick-and-place element, which is used to limit the unfoldable stator.

[0006] As a preferred solution for picking up and placing the stator and limiting the position of the stator, the picking and placing element is an electromagnet, a magnet, a magnetic material, or a vacuum chuck; the picking and placing element is capable of adsorbing the stator. In addition, as a supplementary limiting structure, a first mounting plate is provided below the picking and placing element to support the bottom of the stator.

[0007] In another preferred embodiment, a positioning groove is provided on one side of the picking and placing element, and the shape of the positioning groove matches the shape of the stator.

[0008] As a preferred embodiment for realizing the movement of the stator conveying assembly, the stator conveying assembly further includes a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate is used to mount the pick-and-place element. The first mounting plate is slidably mounted on the second mounting plate, the second mounting plate is slidably mounted on the third mounting plate, and the third mounting plate is slidably mounted on the worktable. The slidably mounted mounting plates are driven by a motor or cylinder. The above structure constitutes a three-dimensional motion mechanism, realizing the three-dimensional spatial movement of the pick-and-place element through three different sliding directions, including moving the pick-and-place element closer to or away from the stator fixture, and placing the stator on the stator fixture through vertical movement.

[0009] In another preferred embodiment, a stator fixing assembly is further included, the stator fixing assembly including a tooling limiting mechanism; the tooling limiting mechanism includes a tooling base, a first support frame and a third cylinder; the tooling base is located on the first support frame; the third cylinder can press the stator tooling onto the tooling base.

[0010] In another preferred embodiment, the stator fixing assembly further includes a lifting mechanism; the lifting mechanism is connected to the stator fixture and drives the stator fixture to switch between an open state and a clamping state.

[0011] As a preferred structure of the lifting mechanism, the lifting mechanism includes a fourth mounting plate, lifting guide columns, and a sixth cylinder. The fourth mounting plate is parallel to the worktable, and two lifting guide columns are fixed to the fourth mounting plate, with the top ends of the lifting guide columns located below the elastic element within the fixture base. The sixth cylinder is mounted on the bottom surface of the fourth mounting plate, and the sixth cylinder drives the fourth mounting plate to move relative to the worktable along the direction of the lifting guide columns. This structure achieves the opening of the stator fixture by having the lifting guide columns abut against the elastic element of the stator fixture, and achieves clamping by the elastic element of the stator fixture.

[0012] In another preferred embodiment, the stator fixing assembly includes a clamping mechanism, the clamping mechanism includes a pressure block, and a fourth cylinder is connected to the pressure block, the fourth cylinder being able to drive the pressure block closer to the stator teeth.

[0013] In a preferred embodiment, the first support frame is slidably connected to the worktable, and a second cylinder is connected to the first support frame, which can drive the first support frame to slide on the worktable. This structure and operation can be used to facilitate the loading and unloading of stator tooling, such as placing or removing the stator tooling after it is moved away from the stator conveying assembly. It can also be connected to the production line to further realize the transfer of stator tooling from the feeding device to the winding machine.

[0014] In another preferred embodiment, an assembly table and a fifth clamping assembly are also included; the fifth clamping assembly is capable of transporting the stator between the assembly table and the stator transfer assembly.

[0015] More preferably, the assembly table is provided with a stator tray, and the stator tray is provided with a stator tray fixture seat that matches the shape of the stator.

[0016] In another preferred embodiment, a third motor is connected to the assembly platform, and the third motor is connected to a divider, which can drive the assembly platform to rotate.

[0017] The optimal solution of the feeding device provided by this invention limits the stator and stator spacing through the structure and shape of the picking and placing components, and the protruding mounting plate below the picking and placing components further supports the stator. The stator conveying assembly can approach the stator fixture in the open state and move along the direction of the stator slot to position the stator on the stator fixture; the lifting mechanism returns to the clamping state of the stator fixture; then the clamping mechanism confirms the installation of the stator and fixes the upper pressure plate, so that the stator is neatly fixed on the stator fixture.

[0018] The feeding device can also be equipped with an assembly table, which can be used to remove the stator from the assembly table and place it on the stator conveying assembly via the fifth clamping component. The assembly table can also serve as an assembly site for the iron core and plastic frame, thus realizing the assembly function.

[0019] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: The present invention provides a feeding device for mounting an unfolded stator onto a stator fixture. Transfer is achieved through a pick-and-place element, which is convenient and fast, and is particularly suitable for automatic feeding of unfolded winding machines. The bottom of the stator contacts the first mounting plate portion below the pick-and-place element for support. The iron core back slot is inserted into the stator fixture, and the stator fixture clamps the plastic frame vertically. The device, combined with the feeding of the pick-and-place element, fixes the stator onto the stator fixture. The above processes are completed by the device of the present invention, realizing the automation of stator assembly or feeding; furthermore, by setting a terminal feeding assembly, the automated installation of terminals can be achieved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the feeding device for the unfolded stator in Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of an example stator.

[0022] Figure 3 This is a schematic diagram of the stator transmission assembly in this invention;

[0023] Figure 4 for Figure 3 A magnified view of part A;

[0024] Figure 5 This is a schematic diagram of the stator fixing assembly.

[0025] Figure 6 This is a schematic diagram of the overall structure of the feeding device for the unfolded stator in Example 2;

[0026] Figure 7 This is a schematic diagram of the assembly platform structure in Example 2;

[0027] Figure 8 for Figure 7 A magnified view of part B;

[0028] The diagram is labeled as follows: 100, stator; 101, core; 102, upper frame; 103, lower frame; 104, upper frame.

[0029] 200. Workbench; 201. Assembly table; 202. Stator tray; 203. Stator tray fixture; 204. Divider; 205. Third motor;

[0030] 300. Stator conveying assembly; 301. Picking and placing element; 302. First mounting plate; 303. First guide post; 304. Second mounting plate; 305. First cylinder; 306. Third mounting plate; 307. First motor; 308. Second motor; 309. Positioning slot;

[0031] 400. Stator fixing assembly; 401. Stator tooling; 402. Upper pressure plate; 408. Tooling limiting mechanism; 409. Tooling base; 410. First support frame; 411. Second cylinder; 412. Second support frame; 413. Third cylinder; 414. Clamping mechanism; 415. Fourth cylinder; 416. Pressure block; 417. Fifth cylinder; 418. Lifting mechanism; 419. Fourth mounting plate; 420. Lifting guide column; 421. Sixth cylinder;

[0032] 500, Fifth clamping assembly; 501, Gripper; 502, Fifth mounting plate; 503, Sixth mounting plate; 504, Fourth motor; 505, Third support frame; 506, Fifth motor. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In this invention, unless otherwise specified, the stator described herein is an unfolded stator. An unfolded stator is a type of stator that maintains a straight shape during winding. This type of stator is suitable for a special winding process. The basic principle of this process is to wind the stator when it is in a straight shape, and then roll the straight stator into a circle after winding, such as a hinged stator or a segmented stator. The function of the feeding device described in this invention in this process is to feed the stator before winding.

[0035] Example 1: Structure of the feeding device for an unfolded stator

[0036] The overall structure of the unfolded stator feeding device provided in this embodiment is as follows: Figures 1-5 As shown, the system includes a stator conveying assembly 300, which includes a three-dimensional motion mechanism for moving the stator and placing it on the stator fixture 401 in the open state. Specifically, the stator conveying assembly 300 also includes a pick-and-place element 301 mounted on the three-dimensional motion mechanism. The pick-and-place element 301 limits the position of the stator 100 by adsorption and its own shape. The pick-and-place element 301 is movable, thereby driving the stator 100 to move and transport and fix the stator 100 on the stator fixing assembly 400.

[0037] like Figure 2 As shown, the stator 100 includes an upper frame 102, an iron core 101, and a lower frame 103 from top to bottom. Therefore, in some embodiments of the present invention, the stator 100 is limited by the adsorption effect of the pick-and-place element 301, which can be a magnet, electromagnet, or vacuum chuck, etc.

[0038] In a preferred embodiment of the present invention, the structure of the stator transmission assembly 300 is as follows: Figure 3 As shown, the spatial movement of the pick-and-place element 301 is achieved through a three-dimensional motion mechanism. Specifically, the stator conveying assembly 300 also includes a first mounting plate 302, a first guide post 303, a second mounting plate 304, a first cylinder 305, a third mounting plate 306, a first motor 307, and a second motor 308. Three sets of individually energized electromagnets are fixed on the first mounting plate 302 as the pick-and-place element 301. A positioning groove 309 is formed on the left side of the pick-and-place element 301, and the shape of the positioning groove 309 matches the shape of the stator 100. The teeth of the stator 100 are limited by the magnetic attraction of the iron core 101 and the shape of the positioning groove 309. Figure 2The first mounting plate 302 extends beyond the pick-and-place element 301 to support the bottom of the stator 100 and prevent it from shaking. The first mounting plate 302 has through holes at both ends and is fixed with linear motion bearings perpendicular to it. A first guide post 303 is connected inside the linear motion bearing, and the bottom of the first guide post 303 is fixed to the second mounting plate 304. A first cylinder 305 is fixed in the middle of the top of the first mounting plate 302, perpendicular to the first mounting plate 302, with its other end connected to the second mounting plate 304. The first cylinder 305 drives the first mounting plate 302 to move up and down along the first guide post 303, thus placing the stator 100 from the pick-and-place element 301 onto the stator fixture 401. The bottom of the second mounting plate 304 is slidably connected to the third mounting plate 306. A first motor 307 is mounted on the right side of the third mounting plate 306. The first motor 307 is connected to the bottom of the second mounting plate 304 via a lead screw. The first motor 307 drives the second mounting plate 304 to move left and right on the third mounting plate 306. The bottom of the third mounting plate 306 is slidably connected to the worktable 200. A second motor 308 is fixed on the worktable 200. The second motor 308 is connected to the bottom of the third mounting plate 306 via a lead screw. The second motor 308 drives the third mounting plate 306 to move back and forth on the worktable 200. Combined with the up and down movement of the first mounting plate 302 and the left and right movement of the second mounting plate 304, the pick-and-place element 301 performs three-dimensional spatial movement, so that the pick-and-place element 301 can be positioned in the waiting position to place the stator 100, or it can move above the stator fixture 401 and then move downward to insert the stator 100 into the stator fixture 401 and then leave.

[0039] Based on the stator tooling 401 in the background art, the present invention provides a stator fixing assembly 400 with the following structure: the stator fixing assembly 400 is located on the left side of the stator conveying assembly 300, and the stator fixing assembly 400 includes a tooling limiting mechanism 408, a clamping mechanism 414 and a lifting mechanism 418.

[0040] In a preferred embodiment, the tooling limiting mechanism 408 is used to limit the stator tooling 401 during operation, and can be electrically controlled to release the restriction after the stator 100 is installed; that is, the stator tooling 401 is detachable. The structure is as follows... Figure 5As shown, it includes a tooling base 409, a first support frame 410, a second cylinder 411, a second support frame 412, and a third cylinder 413. The stator tooling 401 is placed on the tooling base 409 with a through hole, and the through hole on the tooling base 409 is used to accommodate the elastic element (not shown) of the stator tooling 401. The tooling base 409 is placed on the first support frame 410; the first support frame 410 is slidably connected to the worktable 200; a second cylinder 411 is installed on the worktable 200 to the left of the first support frame 410, and the other end of the second cylinder 411 is connected to the left side of the first support frame 410; the second cylinder 411 drives the first support frame 410 to slide on the worktable 200, and the sliding direction is parallel to the worktable 200, so as to realize the left and right movement of the stator tooling 401, thereby moving closer to or away from the stator conveying assembly 300. This action is used to cooperate with the loading and unloading of the stator tooling 401, such as moving to the left after the material is loaded to connect the production line and further realize the flow of the stator tooling 401 from the loading device to the winding machine. The detachable stator fixture 401 includes a second support frame 412 and a third cylinder 413. The second support frame 412 is fixed on the worktable 200. Two third cylinders 413 are fixed to the top of the second support frame 412. The third cylinders 413 are perpendicular to the main body of the stator fixture 401 and press downward against both ends of the main body. To disassemble the stator fixture 401, the third cylinders 413 are simply raised, which is convenient and highly automated. Alternatively, the fixture can be adapted to other clamping stator fixtures through modifications to the fixture limiting mechanism.

[0041] The stator fixing assembly 400 ensures that the stator 100 is securely mounted on the stator fixture 401 through the clamping mechanism 414. The clamping mechanism 414 is mounted on the second support frame 412 and includes two pairs of driving elements for clamping the stator 100. Specifically, a pair of vertical fourth cylinders 415 are fixed at the top of the second support frame 412 and at a position slightly to the right between the third cylinder 413 and the output ends of the two fourth cylinders 415 are fixedly connected to the pressure block 416. The pressure block 416 is on the right side of the stator fixture 401 and can move up and down on the right side of the stator fixture 401 by the drive of the fourth cylinders 415. When the segmented stator 100 is mounted on the stator fixture 401, the downward movement of the pressure block 416 can apply force to the upper surface of the teeth of the segmented stator 100 to achieve clamping and alignment of the segmented stator 100. Two fifth cylinders 417 are fixed between the top of the second support frame 412 and the third cylinder 413, located above the upper pressure plate 402 of the stator fixture 401 and perpendicular to the plane of the upper pressure plate 402. When the upper pressure plate 402 presses against the stator 100 under the action of the elastic element, the fifth cylinders 417 move downward to press against the upper pressure plate 402 to further confirm the pressing and provide feedback signals. A position sensor can also be installed on the second support frame 412 to assist in detecting the position of the upper pressure plate 402.

[0042] When the upper pressure plate 402 of the stator fixture 401 is raised, the stator fixture 401 is in the open state; when the upper pressure plate 402 is lowered to contact and press against the stator 100, the stator fixture 401 is in the clamping state. The switching between the open and clamping states is achieved by the lifting mechanism 418 below the worktable 200, which raises or lowers the upper pressure plate. The lifting mechanism 418 includes a fourth mounting plate 419, lifting guide columns 420, and a sixth cylinder 421. The fourth mounting plate 419 is parallel to the worktable 200, and two lifting guide columns 420 are fixed at the front and rear ends of the fourth mounting plate 419. The lifting guide columns 420 pass upward through the worktable 200 and the first support frame 410, and the top of the lifting guide columns 420 is located below the elastic element in the fixture base 409. The sixth cylinder 421 is fixedly mounted on the bottom surface of the fourth mounting plate 419, and the other end of the sixth cylinder 421 is fixed on the worktable 200. The sixth cylinder 421 drives the fourth mounting plate 419 to move up and down relative to the worktable 200, thereby driving the two lifting guide columns 420 fixed on the fourth mounting plate 419 to move up and down. When moving upward, they can pass through the tooling base 409, resist the elastic element and lift the upper pressure plate 402, which facilitates the installation of the segmented stator 100.

[0043] The working method of the embodiment structure includes the following steps;

[0044] (1) The unfolded stator 100 is placed on the stator conveying assembly 300: the stator conveying assembly 300 uses the adsorption effect of the iron core 101 to guide the teeth of the stator 100. Figure 2 Fix the back of the stator 100 (on the middle a side) close to the stator fixing assembly 400. Figure 2 As shown in Figure b), the stator 100 is inserted from above into the stator fixture 401. The bottom of the stator 100 abuts against the stator fixture 401, further pressing down the pressure block 416 to ensure that the bottom of each stator 100 is aligned with the stator fixture 401. The lifting mechanism 418 moves downward to return to its original position, causing the upper pressure plate 402 to rebound through the elastic element and press against the stator 100. The fifth cylinder 417 moves downward to press the upper pressure plate 402 to further confirm the pressing and provide feedback signals.

[0045] (2) Material unloading: The third cylinder 413 lifts up, and the second cylinder 411 drives the first support frame 410 to move to the left, thereby driving the tooling base 409 to move to the left. At this time, the stator tooling 401 with the stator 100 installed can be removed from the first support frame 410. After placing the empty stator tooling 401 and tooling base 409, the first support frame 410 moves to the right, and the third cylinder 413 presses down on the stator tooling 401; repeat step (1). In the above steps, the placement / removal of the stator tooling 401 and tooling base 409 can be done manually or automatically through mechanical structure.

[0046] Example 2: Deployable stator feeding device with stator feeding assembly line

[0047] The present invention can also be used to design a feeding device for an expanded stator with another derivative structure according to another embodiment of the technical solution, such as Figure 6 As shown, the assembly includes a stator conveying assembly 300 and a stator fixing assembly 400 as described in Embodiment 1, and also includes an assembly table 201 and a fifth clamping assembly 500. The assembly table 201 is located on the right side of the stator conveying assembly 300 and is used to supply material to the stator conveying assembly 300. The fifth clamping assembly 500 can transport the stator between the assembly table 201 and the stator conveying assembly 300. In this embodiment, the assembly table 201 is used to place the stator and can also be used as a place to assemble the stator, facilitating the assembly of the plastic frame and the iron core 101 of the stator 100 together. Combined with the feeding device of Embodiment 1, the stator 100 placed on the assembly table 201 is installed on the upper and lower clamping stator fixture 401, realizing fully automatic feeding of the unfolded stator. The assembly table 201 and the fifth clamping assembly 500 are also installed on the worktable 200 of the assembly feeding device.

[0048] like Figures 6-7 As shown, the assembly table 201 is located on the right side of the stator conveying assembly 300 and is mounted on the divider 204. The bottom of the divider 204 is fixed to the worktable 200, making the assembly table 201 parallel to the worktable 200. A third motor 205 is fixed under the worktable 200 at a position corresponding to the divider 204. The output end of the third motor 205 passes through the worktable 200 and is connected to the divider 204. The assembly table 201 is driven to rotate through the third motor 205 and the divider 204.

[0049] Multiple stator trays 202 are fixed to the edge of the assembly table 201; in this embodiment, there are six. The side of the stator tray 202 closest to the center of the assembly table 201 is the inner side, which has a vertical opening and is fixed to the upper surface of the assembly table 201 by bolts. Figure 8 As shown, the stator tray 202 provides an assembly area for the iron core 101 and plastic frame of the stator 100, and its shape and structure are adapted to the assembled stator 100. The present invention provides a feasible structure: a stator tray fixture 203 is fixed to the outer upper surface of the stator tray 202. The shape of the stator tray fixture 203 is adapted to the shape of the stator 100, and it can hold the stator 100 in place. More specifically, the top of the stator tray fixture 203 has a through slot, the direction of which is parallel to the radial direction of the assembly table 201, which can position and hold the stator 100. The outer side of the stator tray fixture 203 has a slot, which is used to allow space for the stator 100 frame and iron core 101, preventing collisions.

[0050] The stator conveying assembly 300 is located on the workbench 200 to the left of the assembly table 201. The fifth clamping assembly 500 is installed on the workbench 200 behind the stator conveying assembly 300. The fifth clamping assembly 500 includes: a gripper 501, a fifth mounting plate 502, a sixth mounting plate 503, a fourth motor 504, a third support frame 505, and a fifth motor 506.

[0051] The gripper 501 is located above the stator conveying assembly 300 and is fixedly connected to the front side of the fifth mounting plate 502. It is used to grip the assembled stator 100 on the assembly table 201 and place it on the stator conveying assembly 300. The rear side of the fifth mounting plate 502 is slidably connected to the front side of the sixth mounting plate 503. A fourth motor 504 is fixed to the top of the sixth mounting plate 503. The fourth motor 504 is connected to the fifth mounting plate 502 through a lead screw. The axis of the fourth motor 504 is perpendicular to the plane of the assembly table 201, driving the fifth mounting plate 502 to slide up and down on the sixth mounting plate 503, so that the gripper 501 can move closer to or away from the assembly table 201 or the stator conveying assembly 300. The rear side of the sixth mounting plate 503 is slidably connected to the third support frame 505. The left end of the third support frame 505 is fixed with the fifth motor 506. The fifth motor 506 is connected to the sixth mounting plate 503 through a lead screw. The direction of the axis of the fifth motor 506 is parallel to the plane where the assembly table 201 is located, so that the gripper 501 reciprocates linearly along the radial direction of the assembly table 201.

[0052] The method for feeding the stator 100 using the above structure includes: the fifth clamping assembly moves to the stator tray 202, clamps the assembled stator 100, the gripper 501 lifts up to remove the stator 100, and places the assembled stator 100 on the stator conveying assembly 300. The stator conveying assembly 300 fixes the stator 100 by adsorption of the iron core 101. After approaching the stator fixing assembly 400, the stator 100 is inserted into the stator fixture 401 from above, and the dovetail groove on the back of the stator 100 is inserted into the stator fixture 401. The pressure block 416 presses down to further ensure that the bottom of each stator 100 is aligned with the stator fixture 401. The lifting mechanism 418 moves downward to make the upper pressure plate 402 rebound through the elastic element and press the upper pressure plate 402 onto the stator 100. The fifth cylinder 417 moves downward to touch the upper pressure plate 402 to further confirm the clamping and can provide feedback signals.

[0053] In embodiments 1 and 2 of the present invention, the gripper 501 is controlled by a clamping cylinder. The sliding connection method provided in the present invention is achieved by a combination of a groove and a guide rail, wherein the guide rail can be one or more parallel guide rails; in addition, linear guide rails, pulleys, etc. can also be used.

[0054] The feeding method of the above-mentioned assembly feeding device includes: the assembly table can also serve as an assembly site for iron cores and plastic frames, realizing the assembly function. Feeding lines for iron cores and plastic frames are distributed around the assembly table. The positioning and movement of the iron core and various plastic frames of the stator are realized through the clamping structure. Through the movement of the assembly table, the stator conveying assembly 300 is fed. The stator on the assembly table is clamped by the gripper 501 and placed in the stator conveying assembly 300. Combined with the feeding method in Embodiment 1, the assembled stator 100 is installed on the stator tooling 401.

[0055] It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "front," and "back," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing 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, and therefore should not be construed as a limitation of the present invention. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" 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 present invention according to the specific circumstances.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A feeding device of an unwound stator, comprising a three-dimensional movement mechanism, characterized in that, It also includes a pick-and-place element (301) and a stator fixing assembly (400); the pick-and-place element (301) is mounted on the three-dimensional motion mechanism and constitutes the stator conveying assembly (300); the pick-and-place element (301) can approach or move away from the stator tooling (401). The stator fixing assembly (400) includes a tooling limiting mechanism (408), a lifting mechanism (418), and a clamping mechanism (414). The tooling limiting mechanism (408) includes a tooling base (409), a first support frame (410), and a third cylinder (413); the tooling base (409) is located on the first support frame (410); the third cylinder (413) can press the stator tooling (401) onto the tooling base (409); The lifting mechanism (418) is connected to the stator fixture (401) and drives the stator fixture (401) to switch between an open state and a clamping state. The lifting mechanism (418) includes a fourth mounting plate (419), a lifting guide column (420), and a sixth cylinder (421). The fourth mounting plate (419) is set parallel to the worktable (200), and the lifting guide column (420) is fixed on the fourth mounting plate (419). The top of the lifting guide column (420) is located below the elastic element in the fixture base (409). The sixth cylinder (421) is installed on the bottom surface of the fourth mounting plate (419) and is used to drive the fourth mounting plate (419) to drive the lifting guide column (420) to move up and down. The stator fixture (401) is opened by the lifting guide column (420) against the elastic element, and the stator fixture (401) is clamped by the elastic element. The clamping mechanism (414) includes a pressure block (416), on which a fourth cylinder (415) is connected. The fourth cylinder (415) can drive the pressure block (416) to approach the stator (100) teeth and apply pressure to the stator teeth after the stator fixture (401) clamps the stator to align the segmented stator.

2. The feeding device of the unwound stator according to claim 1, characterized in that, The pick-and-place element (301) is an electromagnet, a magnet, a vacuum chuck, or a magnetic steel.

3. The feeding device of the unwound stator according to claim 1, characterized in that, The pick-and-place element (301) has a positioning groove (309) on one side, and the shape of the positioning groove (309) matches the shape of the stator.

4. The feeding device of the unwound stator according to claim 1, characterized in that, It also includes an assembly table (201) and a fifth clamping assembly (500); the fifth clamping assembly (500) is capable of transporting the stator (100) between the assembly table (201) and the stator transfer assembly (300).

5. The feeding device of the unwound stator according to claim 4, characterized in that, The assembly table (201) is provided with a stator tray (202), and the stator tray (202) is provided with a stator tray fixture (203) that matches the shape of the stator.

6. The feeding device of the unwound stator according to claim 4, characterized in that, The assembly table (201) is connected to a third motor (205), which is connected to a divider (204) and can drive the assembly table (201) to rotate.

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