Motor stator assembly tool and assembly line

Abstract

The invention discloses a motor stator assembly tool and an assembly line, and relates to the technical field of motor assembly. A turntable; a plurality of placing grooves for placing the motor shell are formed in the turntable; the three-jaw chuck is connected to the rack in a sliding and rotating mode; the driving assembly comprises a rotary drum rotationally connected to the rack; the plurality of positioning mechanisms are arranged at the bottoms of the placing grooves and are used for positioning the motor shells in the placing grooves; through clockwise and anticlockwise rotation of the rotating drum, after a stator is inserted into a motor shell in the clockwise direction, the rotating disc is driven to rotate, the motor shell to be assembled downwards is rotated to an assembling station, when the rotating drum rotates anticlockwise, the three-jaw chuck can vertically move upwards and rotate, and the stator is clamped, grabbed and reset in the rotating process; preparation is made for next-time assembly, and the assembly efficiency is greatly improved; through the positioning of the positioning device, the collision between the stator and the motor shell is avoided, and the assembly effect is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of motor assembly, in particular to motor stator assembly tooling and an assembly production line. Background Art

[0002] The stator of a motor is the stationary part of an electric motor or generator, mainly composed of a stator core, a stator winding and a frame; its main function is to generate a rotating magnetic field, while the rotor moves in the rotating magnetic field, generating current or torque through electromagnetic induction, thereby realizing energy conversion.

[0003] For example, the publication number is: CN116505729B, and the name is: "An assembly tool", which includes a base, a stator is placed on the base, a guide rod is fixed to the base, the guide rod is equipped with a support, a rotating rod is threadedly connected to the center of the support, and two semi-circular disks are connected below the support. The semi-circular disks expand and contract with the lifting and lowering of the rotating rod. A positioning mechanism is connected to the bottom of the support, and the positioning mechanism includes an outer column sleeve and an inner column sleeve that are relatively slidably and rotatably arranged. An outer wall and a spring sheet are provided at the bottom of any semi-circular disk, and the spring sheet extends to the outer wall at the far end and deforms with the movement of the semi-circular disk.

[0004] In the prior art such as that including the above-mentioned patent, manual operation is usually required for workers to assemble the motor housing and the stator. The shortcomings of the prior art are: 1. During assembly, workers can only assemble one motor housing and stator, resulting in low motor assembly efficiency; 2. During the manual assembly process, since it is a full manual assembly and there is no positioning mechanism, during actual assembly, there may be a mismatch between the stator and the inner wall of the housing, which greatly reduces the performance and reliability of the motor after assembly. Summary of the invention

[0005] The purpose of the present invention is to provide a motor stator assembly tool and an assembly production line to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a motor stator assembly tool, comprising:

[0007] frame;

[0008] The turntable is rotatably connected to the frame; the turntable is provided with a plurality of placement slots for placing the motor housing;

[0009] A three-jaw chuck is slidably and rotatably connected to the frame, and the three-jaw chuck is used for clamping the stator;

[0010] A drive assembly including a drum rotatably connected to a frame;

[0011] A plurality of positioning mechanisms are arranged at the bottom of each placement slot and are used to position the motor housing in each placement slot;

[0012] When the drum rotates in the first direction, it has an assembly stroke and a synchronization stroke;

[0013] In the assembly process: first, the axis of the three-jaw chuck is driven to rotate from perpendicular to the axis of the turntable to parallel to the axis of the turntable, and the three-jaw chuck drives the stator it clamps to move vertically downward, so that the stator is inserted into the motor housing currently located in the placement slot under the three-jaw chuck for assembly;

[0014] In the synchronous stroke: the rotating drum drives the turntable to rotate synchronously;

[0015] When the drum rotates in the second direction, it has an upward movement stroke and a stator material taking stroke;

[0016] In the upward stroke: the three-jaw chuck releases the clamping of the stator and moves vertically upward;

[0017] In the stator picking stroke: the rotating drum drives the three-jaw chuck to rotate toward another motor housing to be assembled, and in the process of rotation, drives the three-jaw chuck to rotate so that the axis of the three-jaw chuck rotates from parallel to the axis of the turntable to perpendicular to the axis of the turntable, thereby clamping the stator.

[0018] Furthermore, a contact groove is provided on the rotating drum, a fixed drum is fixedly connected to the rotating disk, the fixed drum is rotatably connected to the rotating drum, a plurality of lifting grooves are provided on the fixed drum, each lifting groove is commonly connected to a rotating groove, and each lifting groove is slidably abutted with a slider in the rotating groove.

[0019] Furthermore, a plurality of guide limit plates are fixedly connected in the rotating groove, a contact block is slidably connected in the sliding block, the contact block is in contact with and cooperates with each guide limit plate, and a spring is provided between the contact block and the inner wall of the sliding block.

[0020] Furthermore, the length of the guide limiting plate is equal to the distance between two adjacent lifting grooves, and the thickness of the guide limiting plate gradually decreases from one end to the other end.

[0021] Furthermore, the abutment block is in the shape of a right-angled triangle.

[0022] Furthermore, it also includes a rotating mechanism, which includes a fixed plate fixedly connected to the sliding block, an abutment frame rotatably connected to the fixed plate, a sliding frame rotatably connected to the fixed plate, a straight rod slidably connected in the sliding frame, the straight rod is fixedly connected to the three-jaw chuck, one end of the straight rod is slidably connected to the fixed plate, a worm gear is fixedly connected to the sliding frame, a worm is rotatably connected to the fixed plate, the worm gear is meshed with the worm gear, a first gear is fixedly connected to the worm gear, a plurality of first racks and second racks are fixedly connected to the turntable, and the first gear meshes with each first rack and second rack.

[0023] Furthermore, a blind groove is provided on the fixing plate, and a sliding rod is fixedly connected to the end of the straight rod, and the sliding rod is slidably connected in the blind groove.

[0024] Furthermore, the blind groove is composed of a horizontal section, a rotation section and a vertical section which are connected.

[0025] Furthermore, the positioning mechanism includes a positioning plate rotatably connected to the turntable, the positioning plate is provided with a plurality of positioning slots, the placement slots are connected to form straight slots corresponding to the positioning slots, a positioning rod is slidably abutted between each positioning slot and its corresponding straight slot, each positioning rod abuts against the motor housing, a second gear is fixedly connected to the positioning plate, a third rack is fixedly connected to the frame, and the second gear is meshed with the third rack.

[0026] An assembly production line comprises the above-mentioned assembly tooling.

[0027] In the above technical scheme, the motor stator assembly tooling and assembly production line provided by the present invention: through the clockwise and counterclockwise rotation of the rotating drum, the stator can be inserted into the motor housing when it is clockwise, and then the turntable is driven to rotate, so that the motor housing to be assembled is rotated to the assembly station when it is rotated counterclockwise, and the three-jaw chuck can be moved vertically upward and rotated, and the stator can be clamped, grasped and reset during the rotation process, preparing for the next assembly, thereby greatly improving the assembly efficiency; through the positioning of the positioning device, the collision between the stator and the motor housing is avoided, and the assembly effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of a top view of the overall structure provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the overall structure without the frame provided in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the structure of an embodiment of the present invention without the overall upward viewing angle of the rack;

[0033] Figure 5A schematic diagram of the structure of a driving assembly and a rotating mechanism provided in an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the structure of a drive assembly provided in an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the structure of a rotating mechanism provided in an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of a rotating mechanism structure at another angle provided by an embodiment of the present invention;

[0037] Fig. 9 An exploded schematic diagram of the rotating mechanism structure provided by an embodiment of the present invention;

[0038] Fig.10 This is a schematic diagram of the positioning mechanism structure provided by an embodiment of the present invention.

[0039] Explanation of the accompanying drawings: 1. frame; 2. turntable; 21. placement slot; 22. straight slot; 3. motor housing; 4. three-jaw chuck; 5. stator; 6. driving assembly; 61. rotating cylinder; 611. abutment slot; 62. fixed cylinder; 621. lifting slot; 622. rotating slot; 63. guide limit plate; 64. slider; 65. abutment block; 66. spring; 7. rotating mechanism; 71. fixed plate; 711. horizontal section; 712. rotating section; 713. vertical section; 72. abutment frame; 73. sliding frame; 74. straight rod; 741. sliding rod; 75. worm wheel; 76. worm; 77. first gear; 78. first rack; 79. second rack; 8. positioning mechanism; 81. positioning plate; 811. positioning slot; 82. positioning rod; 83. second gear; 84. third rack. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1-10 The motor stator assembly tool provided by the embodiment of the present invention includes: a frame 1; a turntable 2; which is rotatably connected to the frame 1; a plurality of placement grooves 21 for placing the motor housing 3 are opened on the turntable 2; a three-jaw chuck 4, which is slidably and rotatably connected to the frame 1, and the three-jaw chuck 4 is used to clamp and cooperate with the stator 5.

[0042] In an embodiment of the present invention: a driving assembly 6, which includes a rotating drum 61 rotatably connected to the frame 1; specifically, an abutment groove 611 is provided on the rotating drum 61, a fixed drum 62 is fixedly connected to the turntable 2, the fixed drum 62 is rotatably connected to the rotating drum 61, a plurality of lifting grooves 621 are provided on the fixed drum 62, each lifting groove 621 is commonly connected to a rotating groove 622, and each lifting groove 621 is slidably abutted with a slider 64 in the rotating groove 622; specifically, a round rod is fixedly connected to the slider 64, and the round rod is slidably abutted against the abutment groove 611.

[0043] To be more specific, a plurality of guide limit plates 63 are fixedly connected in the rotating groove 622; through the limiting effect of the guide limit plates 63, the slider 64 can only slide up and down along the lifting groove 621, and rotate unidirectionally along the rotating groove 622 with the axis of the fixed cylinder 62 as the center; in order to achieve this purpose: an abutment block 65 is slidably connected in the slider 64; preferably, the abutment block 65 is in the shape of a right-angled triangle; the hypotenuse of the abutment block 65 abuts and cooperates with the thinnest end of the guide limit plate 63; the right-angled side of the abutment block 65 abuts and cooperates with the thickest end of the guide limit plate 63; the abutment block 65 abuts and cooperates with each guide limit plate 63, and a spring 66 is arranged between the abutment block 65 and the inner wall of the slider 64; the spring 66 is a compression spring, and when the abutment block 65 abuts against the guide limit plate 63, the spring 66 is driven to undergo elastic deformation and contraction.

[0044] The length of the guide limit plate 63 is equal to the distance between two adjacent lifting grooves 621, and the thickness of the guide limit plate 63 gradually decreases from one end to the other end; specifically, the thickness of the guide limit plate 63 is thinnest at one end close to the abutment block 65, and thickest at the other end, which brings the following effects: first, when the abutment block 65 slides in the rotating groove 622 and abuts against the guide limit plate 63, the spring 66 is elastically deformed, so that the abutment block 65 slides toward the inside of the slider 64, so that the slider 64 can smoothly move along the guide limit plate 63. It is convenient for the abutment block 65 to slide in the rotating groove 622; secondly, after the abutment block 65 finishes sliding in the rotating groove 622, the abutment block 65 is located at the understanding position of the lifting groove 621 and the rotating groove 622, and the thickest end of the guide limit plate 63 that has just abutted with the abutment block 65 is in abutment with the abutment block 65. At this time, through the abutment effect of the abutment block 65 and the guide limit plate 63, the abutment block 65 can no longer slide into the interior of the slider 64, and the spring 66 can no longer undergo elastic deformation and shrink.

[0045] In the embodiment of the present invention: it also includes a rotating mechanism 7, which is used to drive the three-jaw chuck 4 to rotate; it includes a fixed plate 71 fixedly connected to the slider 64, a contact frame 72 is rotatably connected to the fixed plate 71, a sliding frame 73 is rotatably connected to the fixed plate 71, a straight rod 74 is slidably connected in the sliding frame 73, the straight rod 74 is fixedly connected to the three-jaw chuck 4, one end of the straight rod 74 is slidably connected to the fixed plate 71, a worm gear 75 is fixedly connected to the sliding frame 73, a worm 76 is rotatably connected to the fixed plate 71, the worm 76 is meshed with the worm gear 75, a first gear 77 is fixedly connected to the worm 76, a plurality of first racks 78 are fixedly connected to the turntable 2, and the first gear 77 is meshed with each first rack 78.

[0046] Specifically, the specific structure for realizing the sliding of the straight rod 74 on the fixed plate 71 is as follows: a blind groove is opened on the fixed plate 71, and the end of the straight rod 74 is fixedly connected with a sliding rod 741, and the sliding rod 741 is slidably connected in the blind groove; more specifically, the blind groove is composed of a horizontal section 711, a rotating section 712 and a vertical section 713.

[0047] In the embodiment of the present invention, a material plate (not shown in the figure) for placing the stator 5 is also included.

[0048] When in use, the rotating drum 61 rotates clockwise along its own axis. At this time, the axis of the three-jaw chuck 4 is in a vertical state, and the three-jaw chuck 4 has clamped the stator 5 to be assembled placed on the material plate. Since the abutment block 65 is located at the intersection of the rotating groove 622 and the lifting groove 621 at this time, and the guide limit plate 63 abuts and limits the abutment block 65, the rotation of the rotating drum 61 can only drive the abutment block 65 to slide vertically downward in the lifting groove 621 through the cooperation of the slider 64 and the lifting groove 621, and the cooperation of the round rod on the slider 64 and the abutment groove 611, that is, drive the rotating mechanism 7, the three-jaw chuck 4, and the stator 5 to be assembled to slide vertically downward, so that the stator 5 is inserted into the motor housing 3 below, thereby completing the assembly.

[0049] Immediately following the above, after descending, the slider 64 is located at the bottom of the lifting slot 621. At this time, the rotating drum 61 continues to rotate clockwise. Since the slider 64 has no space to continue to descend vertically, and the guide limit plate 63 and the abutment block 65 are abutted and limited, the rotation of the rotating drum 61 will drive the rotating drum 61 and the turntable 2 to rotate synchronously, so that the three-jaw chuck 4 drives the turntable 2, the assembled motor housing 3, and the stator 5 to rotate 90 degrees clockwise synchronously from the assembly station.

[0050] Next, the drum 61 rotates counterclockwise along its own axis. During the rotation, as in the above principle, the slider 64 is driven to move vertically upward in the lifting groove 621 through the cooperation between the slider 64 and the lifting groove 621, and the cooperation between the round rod on the slider 64 and the abutment groove 611, so that the slider 64 drives the rotating mechanism 7 and the three-jaw chuck 4 to move upward synchronously. Before the movement, the three-jaw chuck 4 releases the clamping effect on the assembled stator 5, so that the stator 5 always remains in the motor housing 3; then, the drum 61 continues to rotate counterclockwise, and the slider 64 slides from the lifting groove 621 into the rotating groove 622 adjacent to the lifting groove 621, that is, driving the rotating mechanism 7 , the three-jaw chuck 4 rotates. Since a guide limit plate 63 is provided in the rotating groove 622, at this time, during the sliding process of the slider 64, due to the abutment between the guide limit plate 63 and the abutment block 65, the abutment block 65 shrinks toward the inside of the slider 64, thereby squeezing the spring 66, causing the spring 66 to undergo elastic deformation until it slides until the abutment block 65 is disengaged from the guide limit plate 63, that is, the abutment block 65 is disengaged from the rotating groove 622 and is located at the junction of the rotating groove 622 and the other lifting groove 621. At this time, the thicker end of the guide limit plate 63 abuts against the right-angled side of the abutment block 65, which can prevent the slider 64 from sliding back along the original path of the rotating groove 622.

[0051] In the stroke of the slider 64 sliding in the rotating groove 622, that is, in the stroke of driving the rotating mechanism 7 and the three-jaw chuck 4 to rotate, the first gear 77 is meshed with the first rack 78 and the second rack 79, so that the first gear 77 drives the worm 76, the worm 76 drives the worm wheel 75 to rotate forward and reversely, and the worm wheel 75 drives the abutment frame 72 to rotate forward and reversely, and the abutment frame 72 cooperates with the slide bar 741, the straight rod 74 slides with the slide frame 73, and the slide bar 741 and the horizontal section 711 and the rotating section 711. The sliding cooperation of 712 and the vertical section 713 drives the straight rod 74 to rotate ninety degrees and then reset. The ninety-degree rotation drives the three-jaw chuck 4 to rotate, so that the axis of the three-jaw chuck 4 rotates from a vertical state to a horizontal state. After the rotation is completed, the three-jaw chuck 4 works to clamp the stator 5 placed on the material plate, and rotates and resets after clamping, so that the three-jaw chuck 4 is rotated and reset, that is, the axis of the three-jaw chuck 4 is in a vertical state, ready for the next assembly operation.

[0052] A plurality of positioning mechanisms 8 are used to position the motor housing 3 so that during assembly, the axis of the motor housing 3 coincides with the axis of the three-jaw chuck 4 in a top view; they are arranged at the bottom of each placement slot 21 to position the motor housing 3 in each placement slot 21.

[0053] Specifically, the positioning mechanism 8 includes a positioning plate 81 rotatably connected to the turntable 2, a plurality of positioning grooves 811 are provided on the positioning plate 81, and a straight groove 22 corresponding to each positioning groove 811 is connected to the placement groove 21, and a positioning rod 82 is slidably abutted between each positioning groove 811 and its corresponding straight groove 22, and each positioning rod 82 abuts against the motor housing 3, a second gear 83 is fixedly connected to the positioning plate 81, and a third rack 84 is fixedly connected to the frame 1, and the second gear 83 is meshed with the third rack 84.

[0054] During the unidirectional rotation of the turntable 2, the second gear 83 is meshed with the third rack 84, and the positioning plate 81, the positioning rod 82 and the straight groove 22 cooperate to drive the positioning mechanism 8 to position the motor housing 3 to be assembled before assembly.

[0055] When the drum 61 rotates in the first direction, it has an assembly stroke and a synchronization stroke;

[0056] In the assembly process: first, the axis of the three-jaw chuck 4 is driven to rotate from being perpendicular to the axis of the turntable 2 to being parallel to the axis of the turntable 2, and the three-jaw chuck 4 drives the stator 5 clamped therein to move vertically downward, so that the stator 5 is inserted into the motor housing 3 currently located in the placement slot 21 below the three-jaw chuck 4 for assembly;

[0057] In the synchronous stroke: the rotating drum 61 drives the rotating disk 2 to rotate synchronously;

[0058] When the drum 61 rotates in the second direction, it has an upward movement stroke and a stator material taking stroke;

[0059] In the upward movement: the three-jaw chuck 4 releases the clamping of the stator 5 and moves vertically upward;

[0060] In the stator picking stroke: the rotating drum 61 drives the three-jaw chuck 4 to rotate toward the position of another motor housing 3 to be assembled, and in the process of rotation, drives the three-jaw chuck 4 to rotate, so that the axis of the three-jaw chuck 4 is rotated from parallel to the axis of the turntable 2 to be perpendicular to the axis of the turntable 2, thereby clamping the stator 5.

[0061] Assembly production line, including the assembly tooling mentioned above.

[0062] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Motor stator assembly tool, characterized in that: include: Rack (1); Turntable (2); It is rotatably connected to the frame (1); a plurality of placement slots (21) for placing the motor housing (3) are provided on the turntable (2); A three-jaw chuck (4) is slidably and rotatably connected to the frame (1), and the three-jaw chuck (4) is used to clamp and cooperate with the stator (5); A driving assembly (6) comprising a rotating drum (61) rotatably connected to the frame (1); A plurality of positioning mechanisms (8), which are arranged at the bottom of each placement slot (21) and are used to position the motor housing (3) in each placement slot (21); When the rotating drum (61) rotates in a first direction, it has an assembly stroke and a synchronization stroke; In the assembly process: first, the axis of the three-jaw chuck (4) is driven to rotate from being perpendicular to the axis of the turntable (2) to being parallel to the axis of the turntable (2), and the three-jaw chuck (4) drives the stator (5) clamped therein to move vertically downward, so that the stator (5) is inserted into the motor housing (3) in the placement groove (21) currently located below the three-jaw chuck (4) for assembly; In the synchronous stroke: the rotating drum (61) drives the rotating disk (2) to rotate synchronously; When the rotating drum (61) rotates in the second direction, it has an upward movement stroke and a stator material taking stroke; In the upward movement: the three-jaw chuck (4) releases the clamping of the stator (5) and moves vertically upward; In the stator picking stroke: the rotating drum (61) drives the three-jaw chuck (4) to rotate toward the position of another motor housing (3) to be assembled, and during the rotation process, the three-jaw chuck (4) is driven to rotate so that the axis of the three-jaw chuck (4) is rotated from being parallel to the axis of the rotating disk (2) to being perpendicular to the axis of the rotating disk (2), thereby clamping the stator (5).

2. The motor stator assembly tool according to claim 1, characterized in that: The rotating cylinder (61) is provided with an abutment groove (611), the rotating disk (2) is fixedly connected with a fixed cylinder (62), the fixed cylinder (62) is rotatably connected with the rotating cylinder (61), a plurality of lifting grooves (621) are provided on the fixed cylinder (62), each lifting groove (621) is commonly connected with a rotating groove (622), and a slider (64) is commonly slidably abutted in each lifting groove (621) and the rotating groove (622).

3. The motor stator assembly tool according to claim 2, characterized in that: A plurality of guide limit plates (63) are fixedly connected in the rotating groove (622), a contact block (65) is slidably connected in the slider (64), the contact block (65) is in contact with each guide limit plate (63), and a spring (66) is provided between the contact block (65) and the inner wall of the slider (64).

4. The motor stator assembly tool according to claim 3, characterized in that: The length of the guide limit plate (63) is equal to the distance between two adjacent lifting grooves (621), and the thickness of the guide limit plate (63) gradually decreases from one end to the other end.

5. The motor stator assembly tool according to claim 3, characterized in that: The abutment block (65) is in the shape of a right triangle.

6. The motor stator assembly tool according to claim 2, characterized in that: The invention also comprises a rotating mechanism (7), which comprises a fixed plate (71) fixedly connected to the slider (64), an abutting frame (72) being rotatably connected to the fixed plate (71), a sliding frame (73) being rotatably connected to the fixed plate (71), a straight rod (74) being slidably connected in the sliding frame (73), the straight rod (74) being fixedly connected to the three-jaw chuck (4), one end of the straight rod (74) being slidably connected to the fixed plate (71), a worm gear (75) being fixedly connected to the sliding frame (73), a worm gear (76) being rotatably connected to the fixed plate (71), the worm gear (76) being meshed with the worm gear (75), a first gear (77) being fixedly connected to the worm gear (76), a plurality of first racks (78) and second racks (79) being fixedly connected to the rotating disk (2), and the first gear (77) being meshed with each of the first racks (78) and the second racks (79).

7. The motor stator assembly tool according to claim 6, characterized in that: A blind groove is provided on the fixing plate (71), and a sliding rod (741) is fixedly connected to the end of the straight rod (74), and the sliding rod (741) is slidably connected in the blind groove.

8. The motor stator assembly tool according to claim 7, characterized in that: The blind groove is composed of a horizontal section (711), a rotating section (712) and a vertical section (713) which are connected.

9. The motor stator assembly tool according to claim 1, characterized in that: The positioning mechanism (8) comprises a positioning plate (81) rotatably connected to the rotating plate (2), a plurality of positioning grooves (811) are provided on the positioning plate (81), a straight groove (22) corresponding to each positioning groove (811) is provided in communication with the placement groove (21), a positioning rod (82) is slidably abutted between each positioning groove (811) and its corresponding straight groove (22), each positioning rod (82) is abutted against the motor housing (3), a second gear (83) is fixedly connected to the positioning plate (81), a third rack (84) is fixedly connected to the frame (1), and the second gear (83) is meshed with the third rack (84).

10. Assembly production line, characterized in that, It comprises the assembly tool described in claims 1-9.

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