A motor stator coil welding segment kneading device and method

Abstract

The present invention provides a motor stator coil welding section kneading device and method, which relates to the field of motor stator coils, including: a bearing platform, which has a bearing surface; a fixing frame, which has an installation slot, and the fixing frame is fixedly connected to the bearing platform through a lifting mechanism; a winding drum, which is arranged in the installation slot, and has an alignment hole in the winding drum; a kneading head, which is arranged in the alignment hole; when the kneading head clamps the welding section, the winding drum guides the welding section to be wound by self-rotating in the installation slot. The present invention can realize the self-winding action of the coil welding section synchronously during the clamping process through the cooperation of the kneading head and the winding drum, specifically, guide the stator coil to move to just below the alignment hole on the winding drum, and then guide the coil welding section to enter the alignment hole on the winding drum, and then drive the kneading head to clamp the welding section extending into the alignment hole, and at the same time guide the winding drum to rotate in the installation slot, so that the welding section is wound.

Description

Technical Field

[0001] The invention relates to the field of motor stator coils, and in particular to a motor stator coil welding segment kneading device and method. Background Art

[0002] The motor stator is an important part of motors such as generators and starters. The stator consists of three parts: stator core, stator winding (coil) and frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field to generate (output) current. The coil includes an insertion section, a twisted wire section and a welding section.

[0003] In the prior art, such as the Chinese patent document with application number CN202410191157.0, it discloses a motor stator coil welding segment kneading tool, which mounts the stator on a loading frame and makes the coil welding segment face one side of the mounting frame. When bending and kneading each welding segment pair of the stator, the first driving member can drive the loading frame to rotate, the first driving member can drive the mounting frame to rise and fall, and the driving member can drive the two pressing brackets to bend and knead each welding segment pair, thereby realizing the bending and kneading of each welding segment pair on a circle of the stator in turn, further improving the efficiency of the bending and kneading operation of each welding segment pair of the stator.

[0004] However, the technical solution disclosed in the above patent document still has limitations in its specific implementation. This is because, when encountering some coils with larger diameters, their surface strength is lower than that of small coils. When pressure is applied to the coils with larger diameters, a larger pressure needs to be applied to knead the coils together. However, this makes it easy for the edge of the kneading device to press a dent into the coil (that is, when the vertical coil contacts the kneading device, the edge of the kneading device has a lower contact amount with the coil surface, and dents are easily formed under greater pressure), resulting in the risk of the coil being easily broken. If the pressure used is relatively small, it is easy for the kneading degree to be insufficient, resulting in the adhesion degree of the coil kneading area being partially kneaded or quickly detached after kneading (this situation occurs more frequently because a large kneading force will not be applied while ensuring the yield rate), resulting in subsequent welding being affected. Summary of the invention

[0005] The present invention provides a motor stator coil welding section kneading device and method, aiming to solve the problem in the prior art that when encountering some coils with thicker diameters, the kneading degree is insufficient, resulting in the adhesion degree of the coil kneading area being partially kneaded or quickly detached after kneading.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A motor stator coil welding segment kneading device and method, comprising:

[0008] A bearing platform having a bearing surface capable of bearing the stator coil;

[0009] A fixing frame, in which a mounting slot is provided, the fixing frame is fixedly connected to the bearing platform through a lifting mechanism and can move toward or away from the bearing surface;

[0010] A winding drum is arranged in the installation slot, wherein the winding drum has an alignment hole which can face the welding section on the stator coil, and the winding drum can rotate in the installation slot;

[0011] A kneading head is arranged in the alignment hole, and the kneading head can clamp the welding section extending into the alignment hole;

[0012] When the kneading head clamps the welding section, the winding drum guides the welding section to be wound by rotating in the installation groove.

[0013] As a preferred solution of the present invention, the winding cylinder comprises a cylinder body movably connected in the installation slot, and the inner side wall of the alignment hole in the cylinder body is provided with a placement chamber;

[0014] The kneading head includes a fixed block arranged on the inner side wall of the end of the alignment hole away from the bearing surface and two pushing blocks arranged in the placement chamber, each of the pushing blocks is provided with a clamping block on the side surface away from the placement chamber, all of the clamping blocks are rotatably connected to the fixed block, and each pushing block can push the corresponding clamping block to move toward the axial center line of the alignment hole.

[0015] As a preferred solution of the present invention, the surfaces of the two clamping blocks on one side opposite to each other are provided with clamping blocks, and the surfaces of the two clamping blocks on one side opposite to each other are correspondingly installed with a plurality of limit strips; one of the clamping blocks is provided with a restraining clamp, and the other clamping block is provided with a stabilizing piece matching the restraining clamp, and when the two pushing blocks are fitted together, each limit strip on one clamping block is correspondingly fitted with each limit strip on the other clamping block to form a plurality of barrier structures.

[0016] As a preferred solution of the present invention, there is a gap between adjacent limiting strips on each clamping block. When multiple barrier structures are formed, the welding section is located in the gap, and the width of the gap is not less than the diameter of the coil welding section.

[0017] As a preferred solution of the present invention, the clamping block can slide along the surface of the pushing block, and there is a gap between the clamping block and the surface of the pushing block;

[0018] The two clamping surface blocks are both provided with mounting grooves, the binding clamp is arranged in one of the mounting grooves, and a stabilizing piece is arranged in the other mounting groove.

[0019] As a preferred solution of the present invention, the binding clamp comprises a binding support block installed in the installation groove, a plurality of positioning slots are provided on the surface of the binding support block, each positioning slot is provided corresponding to each gap, an oblique support block installed on the surface of the clamping face block is provided in the positioning slot, and the clamping face block is a clamping face block provided with the binding clamp;

[0020] The stabilizing member comprises a plurality of stabilizing brackets located in the installation grooves on the clamping face block, the clamping face block being another clamping face block opposite to the clamping face block provided with the binding clamp; all the stabilizing brackets are fixedly connected to the surface of the clamping face block.

[0021] As a preferred solution of the present invention, the width of the clamping slot at one end away from the bearing surface is greater than the width of the other end close to the bearing surface, so as to clamp the coil welding section.

[0022] As a preferred solution of the present invention, the side wall of the cylinder is provided with a surrounding disk, and the surrounding disk has two movable chambers respectively arranged corresponding to the two clamping surface blocks, and each of the movable chambers is movably connected to two movable plugs;

[0023] The two movable plugs are connected by a connecting rope and are filled with fluid. Push columns are installed on the opposite side surfaces of the two movable plugs, one of which is connected to the surface of the push block, and the other can push the movable plug to move along the movable chamber, and a return piece is sleeved on the side wall of the push column.

[0024] In view of the above technical problems, the present invention also provides a kneading method of a motor stator coil welding segment kneading device, comprising the following steps:

[0025] S1. Guide the coil welding section to align with the winding cylinder;

[0026] S2. Lower the winding drum until the coil welding section enters the alignment hole on the winding drum;

[0027] S3. The coil welding section is clamped by the kneading head, and the winding drum is guided to rotate, so as to clamp and wind the coil welding section at the same time.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention can realize the self-winding action of the coil welding section synchronously during the clamping process through the cooperation of the kneading head and the winding drum. Specifically, the stator coil is directly guided to move to just below the alignment hole on the winding drum, and then the winding drum is driven down by the lifting mechanism until the coil welding section enters the alignment hole on the winding drum. Then, the kneading head is driven to clamp the welding section extending into the alignment hole, and at the same time, the winding drum is guided to rotate in the installation slot to wind the welding section. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0031] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0032] Figure 2 A schematic diagram of the structure of the fixing frame provided by the present invention;

[0033] Figure 3 A schematic diagram of the winding drum structure provided by the present invention;

[0034] Figure 4 A schematic diagram of the structure of the surround disk provided by the present invention;

[0035] Figure 5 A schematic diagram of the kneading head structure provided by the present invention;

[0036] Figure 6 A schematic diagram of the structure of the activity room provided by the present invention;

[0037] Figure 7 A schematic diagram of the structure of the fixing block provided by the present invention;

[0038] Figure 8 A schematic diagram of the installation slot structure provided by the present invention;

[0039] Fig. 9 A schematic diagram of the limit strip structure provided by the present invention;

[0040] Fig.10 This is a schematic diagram of the locking slot structure provided by the present invention.

[0041] In the figure:

[0042] 1. Carrying platform; 2. Fixed frame; 3. Installation slot; 4. Winding cylinder; 5. Alignment hole; 6. Kneading head; 7. Cylinder body; 8. Placement chamber; 9. Fixed block; 10. Push block; 11. Clamping block; 12. Clamping surface block; 13. Limiting strip; 14. Installation slot; 15. Constraint support block; 16. Positioning slot; 17. Oblique support block; 18. Stabilizing support block; 19. Surrounding disk; 20. Movable chamber; 21. Movable plug; 22. Connecting rope; 23. Push column; 24. Return member. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0045] like Figure 1-Figure 10 As shown, the present invention provides a motor stator coil welding segment kneading device, comprising:

[0046] The support platform 1 has a support surface capable of supporting the stator coil; (refer to Figure 1 The stator coils on the bearing surface can be transported automatically or manually, which is not specifically limited here).

[0047] The fixing frame 2 has a mounting slot 3 therein, and the fixing frame 2 is fixedly connected to the bearing platform 1 through a lifting mechanism and can move toward or away from the bearing surface; Figure 1 , the lifting mechanism can choose a screw or cylinder structure, such as Figure 1 The A in it is to select the cylinder movement mechanism.

[0048] The winding drum 4 is arranged in the installation slot 3. The winding drum 4 has an alignment hole 5 which can face the welding section on the stator coil. The winding drum 4 can rotate in the installation slot 3. The rotation mode can be driven by a belt or by a toothed disc and a gear driven by a motor.

[0049] A kneading head 6 is disposed in the alignment hole 5, and the kneading head 6 can clamp the welding section extending into the alignment hole 5;

[0050] When the kneading head 6 clamps the welding section, the winding drum 4 guides the welding section to be wound by rotating in the installation groove 3.

[0051] The present invention can realize the self-winding action of the coil welding section synchronously during the clamping process through the cooperation of the kneading head 6 and the winding drum 4. Specifically, the stator coil is directly guided to move to just below the alignment hole 5 on the winding drum 4, and then the winding drum 4 is driven down by the lifting mechanism until the coil welding section enters the alignment hole 5 on the winding drum 4. Then, the kneading head 6 is driven to clamp the welding section extending into the alignment hole 5, and at the same time, the winding drum 4 is guided to rotate in the installation slot 3, so that the welding section is wound.

[0052] After winding is completed, the coil welding section has a winding area (the kneading area is located at the bottom of the clamping block 11). Even if the kneading pressure is small, the coil will not easily separate quickly after kneading due to the existence of the winding area.

[0053] In some specific embodiments, the winding cylinder 4 includes a cylinder body 7 movably connected in the installation slot 3, and a placement chamber 8 is provided on the inner side wall of the alignment hole 5 in the cylinder body 7;

[0054] The kneading head 6 includes a fixed block 9 arranged on the inner side wall of the alignment hole 5 away from the bearing surface and two pushing blocks 10 arranged in the placement chamber 8. Each pushing block 10 is provided with a clamping block 11 on the side surface away from the placement chamber 8. All the clamping blocks 11 are rotatably connected to the fixed block 9 (the connection method can be a torsion spring), and each pushing block 10 can push the corresponding clamping block 11 to move toward the axial center line direction of the alignment hole 5.

[0055] When the welding section penetrates into the alignment hole 5, the two pushing blocks 10 located in the placement chamber 8 push the corresponding clamping blocks 11 to achieve the bonding of the welding section. After bonding, the kneading and winding actions can be achieved, that is, winding first, and after winding to a certain extent, continue to apply pressure to the pushing block 10 so that the clamping block 11 at the bottom can knead the wound coil.

[0056] And due to the existence of the placement chamber 8, the movement of the welding section penetrating into the alignment hole 5 will not be affected.

[0057] In some specific embodiments, a clamping block 12 is provided on the opposite side surfaces of the two clamping blocks 11, and a plurality of limit strips 13 are correspondingly installed on the opposite side surfaces of the two clamping blocks 12; one of the clamping blocks 12 is provided with a restraining clamp, and the other clamping block 12 is provided with a stabilizing piece matching the restraining clamp, and when the two pushing blocks 10 are fitted together, each limit strip 13 on one clamping block 12 is correspondingly fitted with each limit strip 13 on the other clamping block 12 to form a plurality of barrier structures.

[0058] The above measures are to prevent the welding section from being separated from the clamping block 11 during winding.

[0059] In some specific embodiments, there is a gap between adjacent limiting strips 13 on each clamping block 12. When multiple barrier structures are formed, the welding section is located in the gap, and the width of the gap is not less than the diameter of the coil welding section. This arrangement can further prevent the coil from escaping from the clamping block 11.

[0060] In some specific embodiments, the clamping block 12 can slide along the surface of the pushing block 10, and there is a gap between the clamping block 12 and the surface of the pushing block 10;

[0061] Both clamping face blocks 12 are provided with mounting grooves 14 , the restraining clip is arranged in one of the mounting grooves 14 , and a stabilizing member is arranged in the other mounting groove 14 .

[0062] In some specific embodiments, the restraint clamp includes a restraint bracket 15 installed in the installation groove 14, and a plurality of locking slots 16 are provided on the surface of the restraint bracket 15, each of which is provided corresponding to each gap, and an oblique bracket 17 installed on the surface of the clamping face block 12 is provided in the locking slot 16, and the clamping face block 12 is a clamping face block 12 provided with the restraint clamp;

[0063] The stabilizing member includes a plurality of stabilizing brackets 18 located in the mounting grooves 14 on the clamping block 12 , which is another clamping block 12 opposite to the clamping block 12 with the binding clamp; all the stabilizing brackets 18 are fixedly connected to the surface of the clamping block 12 .

[0064] The above measures are intended to further prevent the coil from detaching during the winding process.

[0065] In some specific embodiments, the width of the clamping slot 16 at one end away from the bearing surface is greater than the width at the other end close to the bearing surface, so as to clamp the coil welding section. Since the coil is easy to slide up and down during winding, the position of the coil welding section is limited by limiting the width of the clamping slot 16.

[0066] In some specific embodiments, in order to realize the pushing operation of the pushing block 10, the side wall of the cylinder 7 is provided with a surrounding disk 19, and there are two active chambers 20 arranged corresponding to the two clamping blocks 12 respectively in the surrounding disk 19, and two active plugs 21 are movably connected in each active chamber 20; the two active plugs 21 are connected by a connecting rope 22, and the space between the two active plugs 21 is filled with fluid, and the surfaces of the two active plugs 21 opposite to each other are installed with pushing columns 23, one of the pushing columns 23 is connected to the surface of the pushing block 10, and the other pushing column 23 can push the active plug 21 to move along the active chamber 20, and the side wall of the pushing column 23 is sleeved with a return member 24.

[0067] When the present invention specifically works:

[0068] Please refer to Figure 5-9When the coil welding section enters the alignment hole 5, a clamping operation is required. Specifically, a pushing component, such as a pneumatic push rod, an electric push rod, a lead screw, etc., provided on the fixing frame 2 can be used to push a ring piece aligned with the pushing column 23. When the ring piece is pressed down, all the pushing columns 23 abutting against the ring piece can be directly pushed down (refer to Figure 4 and Figure 5 When each push column 23 abutting against the ring sheet descends, it will also compress the return member 24, such as a spring, to facilitate subsequent resetting. The connection rope 22 is provided to synchronize the movement between the two active plugs 21). After that, the descending push column 23 will push the corresponding active plug 21, and then the active plug 21 will push the fluid, another active plug 21 and another push column 23 in turn, and then the other push column 23 will push the corresponding push block 10 to move toward the axial center line of the alignment hole 5.

[0069] When the two push blocks 10 move toward the axial centerline of the alignment hole 5, the two clamping blocks 11 will gradually fit together, that is, each limit strip 13 on one clamping surface block 12 is correspondingly fitted with each limit strip 13 on the other clamping surface block 12 to form a plurality of barrier structures, and at the same time, the coil welding section (reference Figure 1 There are two) will enter the corresponding barrier structure.

[0070] When the two pushing blocks 10 move toward the axial center line of the alignment hole 5, the coil welding section will not only enter the blocking structure, but also when the coil welding section is just in the interval between adjacent limit strips 13, the coil welding section will be stuck in the locking groove 16. At the same time, as the clamping block 11 gradually fits, the oblique support block 17 will gradually approach the stabilizing support block 18, that is, the coil welding section will be clamped between the oblique support block 17 and the stabilizing support block 18, so that the subsequent winding action will not cause large movement of the welding section.

[0071] After that, the belt can be used to Figure 1 The belt is selected in the middle to drive the winding drum 4 to rotate, so as to clamp and wind the coil welding section at the same time.

[0072] After the winding is completed, the clamping block 11 can clamp the wound coil welding section by continuing to apply pressure.

[0073] The present invention also provides a kneading method of a motor stator coil welding section kneading device, comprising the following steps:

[0074] S1. Guide the coil welding section to align with the winding tube 4;

[0075] S2. Lower the winding drum 4 until the coil welding section enters the alignment hole 5 on the winding drum 4;

[0076] S3. The coil welding section is clamped by the kneading head 6, and the winding drum 4 is guided to rotate so as to clamp and wind the coil welding section at the same time.

[0077] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0078] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A motor stator coil welding section kneading device, characterized in that: include: A bearing platform (1) having a bearing surface capable of bearing a stator coil; A fixed frame (2) having a mounting slot (3) therein, wherein the fixed frame (2) is fixedly connected to the bearing platform (1) via a lifting mechanism and is capable of moving toward or away from the bearing surface; A winding drum (4) is arranged in the installation slot (3), the winding drum (4) having an alignment hole (5) capable of facing the welding section on the stator coil, and the winding drum (4) is capable of rotating in the installation slot (3); A kneading head (6) is arranged in the alignment hole (5), and the kneading head (6) is capable of clamping the welding section extending into the alignment hole (5); When the kneading head (6) clamps the welding section, the winding cylinder (4) guides the welding section to be wound by rotating in the installation slot (3); The winding cylinder (4) comprises a cylinder body (7) movably connected in the installation slot (3), and a placement chamber (8) is provided on the inner side wall of the alignment hole (5) in the cylinder body (7); The kneading head (6) comprises a fixed block (9) arranged on the inner side wall of the end of the alignment hole (5) away from the bearing surface, and two pushing blocks (10) arranged in the placement chamber (8), each of the pushing blocks (10) is provided with a clamping block (11) on the side surface away from the placement chamber (8), all of the clamping blocks (11) are rotatably connected to the fixed block (9), and each pushing block (10) can push the corresponding clamping block (11) to move in the direction of the axial center line of the alignment hole (5).

2. The motor stator coil welding section kneading device according to claim 1, characterized in that: The surfaces of the two clamping blocks (11) facing each other are each provided with a clamping block (12), and the surfaces of the two clamping blocks (12) facing each other are each correspondingly provided with a plurality of limit strips (13); one of the clamping blocks (12) is provided with a binding clamp, and the other clamping block (12) is provided with a stabilizing member matching the binding clamp; when the two pushing blocks (10) are fitted together, each limit strip (13) on one clamping block (12) is correspondingly fitted with each limit strip (13) on the other clamping block (12) to form a plurality of barrier structures.

3. The motor stator coil welding section kneading device according to claim 2, characterized in that: There is a gap between adjacent limiting strips (13) on each clamping surface block (12); when a plurality of barrier structures are formed, the welding section is located in the gap; and the width of the gap is not less than the diameter of the coil welding section.

4. The motor stator coil welding section kneading device according to claim 2 or 3, characterized in that: The clamping block (12) is capable of sliding along the surface of the pushing block (10), and there is a gap between the clamping block (12) and the surface of the pushing block (10); Both clamping surface blocks (12) are provided with mounting grooves (14), the restraining clamp is arranged in one of the mounting grooves (14), and a stabilizing member is arranged in the other mounting groove (14).

5. The motor stator coil welding section kneading device according to claim 4, characterized in that: The binding clamp comprises a binding support block (15) installed in a mounting groove (14); a plurality of locking slots (16) are provided on the surface of the binding support block (15); each locking slot (16) is provided corresponding to each gap; an oblique support block (17) is provided in the locking slot (16) and is installed on the surface of a clamping face block (12); the clamping face block (12) is a clamping face block (12) provided with a binding clamp; The stabilizing member comprises a plurality of stabilizing support blocks (18) located in mounting grooves (14) on a clamping surface block (12), the clamping surface block (12) being another clamping surface block (12) opposite to the clamping surface block (12) provided with the binding clamp; all the stabilizing support blocks (18) are fixedly connected to the surface of the clamping surface block (12).

6. The motor stator coil welding segment kneading device according to claim 5, characterized in that: The width of the clamping slot (16) at one end away from the bearing surface is greater than the width of the end close to the bearing surface, so as to clamp the coil welding section.

7. The motor stator coil welding section kneading device according to claim 2 or 3, characterized in that: The side wall of the cylinder (7) is provided with a surrounding disk (19), and two movable chambers (20) are arranged corresponding to the two clamping surface blocks (12) respectively in the surrounding disk (19), and each of the movable chambers (20) is movably connected to two movable plugs (21); The two movable plugs (21) are connected by a connecting rope (22), and a fluid is filled between the two movable plugs (21). Pushing posts (23) are installed on the surfaces of the two movable plugs (21) on opposite sides, one of the pushing posts (23) is connected to the surface of the pushing block (10), and the other pushing post (23) can push the movable plug (21) to move along the movable chamber (20), and a return member (24) is sleeved on the side wall of the pushing post (23).

8. A kneading method based on the motor stator coil welding segment kneading device according to any one of claims 1 to 7, characterized in that: The steps include: S1. Guide the coil welding section to align with the winding tube (4); S2. Lower the winding drum (4) until the coil welding section enters the alignment hole (5) on the winding drum (4); S3. The coil welding section is clamped by the kneading head (6) and the winding drum (4) is guided to rotate so as to clamp and wind the coil welding section at the same time.

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