Automatic assembling device for stepping motor shell

Abstract

The invention relates to the technical field of part assembling, and provides an automatic assembling device for a stepping motor shell, the automatic assembling device comprises an assembling power box, a shell positioning seat, a cross-shaped material taking box and an automatic assembling assembly, a material taking rod is arranged on the assembling power box in a penetrating mode, a circulating assembling disc is rotationally arranged on the material taking rod, and the circulating assembling disc is located above the assembling power box; a power circulation assembly used for rotation of the circulation assembly disc is arranged in the assembly power box, the multiple machine shell positioning seats are arranged on the circulation assembly disc at equal angles, and limiting grooves used for fixing the end cover, the shell and the bottom cover are sequentially formed in the machine shell positioning seats from top to bottom. And positioning through holes corresponding to the fixing bolts on the bottom cover are formed in the casing positioning seat and the circulating assembly disc. According to the technical scheme, the problems that in the prior art, when the stepping motor shell is assembled, the assembling efficiency is low, and assembling errors are prone to occurring are solved.

Description

Technical Field

[0001] The invention relates to the technical field of component assembly, and in particular to an automatic assembly device for a stepping motor housing. Background Art

[0002] The stepper motor case is an important component of the stepper motor, usually made of metal materials such as cast iron, aluminum alloy, etc. Its main function is to wrap the stator and rotor inside the motor to protect them from the influence of the external environment, such as dust, water vapor, debris, etc., to prevent these impurities from entering the motor and affecting the normal operation and service life of the motor. The stepper motor case is mostly composed of a shell, a front cover and a rear cover. The assembly process is relatively simple, that is, the rear cover with the rotor and stator installed is connected to the shell and the front cover in turn, and then the circuit is connected through the shell to complete the assembly of the stepper motor.

[0003] In the prior art, when assembling the stepper motor housing, most of them are performed by presetting a program for a robot to complete the grabbing, carrying, and placing of the housing and the end cover, and then the staff connects the bolts carried on the end cover to the housing to complete the assembly of the motor housing. However, in the actual assembly process, although the power tools used by the staff have the function of torque detection, the long-term labor not only has low processing efficiency, but also is prone to fastening deviation problems, which affects the service life of the stepper motor. Summary of the invention

[0004] The present invention provides an automatic assembly device for a stepper motor housing, which is used to solve the problems mentioned in the background art that the prior art has low assembly efficiency and is prone to assembly errors when assembling a stepper motor housing.

[0005] The technical solution of the present invention is as follows: an automatic assembly device for a stepping motor housing, comprising an assembly power box, a housing positioning seat, a cross-feeding box and an automatic assembly component;

[0006] The assembly power box is provided with a material taking rod, and a circulating assembly disk is rotatably provided on the material taking rod. The circulating assembly disk is located above the assembly power box, and a power circulation component for rotating the circulating assembly disk is provided in the assembly power box;

[0007] The casing positioning seats are provided with a plurality of them, and the casing positioning seats are arranged at equal angles on the circulation assembly disk. The casing positioning seats are provided with limiting grooves for fixing the end cover, the housing and the bottom cover in sequence from top to bottom, and the casing positioning seats and the circulation assembly disk are provided with positioning through holes corresponding to the fixing bolts on the bottom cover, and the positioning through holes are connected with the limiting grooves;

[0008] The cross material picking box is arranged on the material picking rod, and four material picking assemblies are arranged at equal angles in the cross material picking box, and the four material picking assemblies are used for picking and placing materials of the bottom cover, the shell, the end cover and the whole machine in sequence;

[0009] The automatic assembly component includes a top assembly part and a bottom assembly part, which are used for the synchronous assembly of the bottom cover and the end cover. The top assembly part is arranged on one side of the material taking component used for taking and placing the end cover, and the bottom assembly part is arranged on the assembly power box.

[0010] Based on the above solution, the power circulation assembly includes a circulation pipe and a circulation power part;

[0011] The circulation pipe penetrates and is rotatably arranged on the assembly power box, one end of the circulation pipe is connected to the circulation assembly plate, and the material taking rod is located in the circulation pipe;

[0012] The circulating power unit is arranged in the assembly power box, and the circulating power unit is connected to the circulating pipe.

[0013] On the basis of the above scheme, the circulating power unit includes a power motor, a power gearbox, a bevel gear 1 and a bevel gear 2;

[0014] The power motor is installed in the assembly power box;

[0015] The power gearbox is installed in the assembly power box, and the input end of the power gearbox is connected to the output end of the power motor;

[0016] The bevel gear 1 is arranged on the output end of the power gearbox;

[0017] The second bevel gear is arranged on the circulation pipe, and the second bevel gear is meshed with the first bevel gear.

[0018] As a preferred technical solution of the present application, the material taking assembly includes a transverse adjustment portion, a longitudinal adjustment portion and a material taking clamping claw group;

[0019] The lateral positioning portion is arranged in the cross-feeding box;

[0020] The longitudinal position adjusting portion is arranged on the transverse position adjusting portion;

[0021] The material taking clamping claw group is arranged on the longitudinal adjustment part.

[0022] Further on the basis of the above scheme, the lateral adjustment part includes a lateral adjustment electric cylinder and a lateral adjustment frame;

[0023] The horizontal adjustment electric cylinder is installed in the cross material picking box;

[0024] The horizontal adjustment frame is arranged on the output end of the horizontal adjustment electric cylinder, and the longitudinal adjustment part is arranged on the horizontal adjustment frame.

[0025] On the basis of the foregoing solution, further, the longitudinal adjustment part includes a longitudinal adjustment electric cylinder and a longitudinal adjustment frame;

[0026] The longitudinal adjustment electric cylinder is installed on the horizontal adjustment frame;

[0027] The longitudinal adjustment frame is arranged on the output end of the longitudinal adjustment electric cylinder, the material taking jaw group is installed on the longitudinal adjustment frame, and the top assembly part is arranged on one side of the longitudinal adjustment frame.

[0028] On the basis of the foregoing solution, the top assembly part includes an assembly box, an assembly motor and a fastening group;

[0029] The assembly box is arranged on one side of the longitudinal adjustment frame;

[0030] The assembly motor is installed on the assembly box, and the output end of the assembly box penetrates into the assembly box and is provided with an assembly main gear;

[0031] There are multiple fastening groups, the fastening groups are rotatably arranged on the assembly box, and the fastening groups are meshed with the assembly main gear.

[0032] On the basis of the foregoing solution, further, the fastening group includes a torque screwdriver and an assembly driven gear;

[0033] The torque screwdriver penetrates and is rotatably arranged on the assembly box, and the torque screwdriver is adapted to the fixing bolt on the bottom cover;

[0034] The assembly driven gear is arranged on the torque screwdriver, and the assembly driven gear is meshed with the assembly main gear.

[0035] On the basis of the foregoing solution, further, the bottom assembly part includes a bottom assembly group and a bottom adjustment cylinder;

[0036] The bottom assembly group has the same structure as the top assembly part;

[0037] The bottom adjustment cylinder is installed on the assembly power box, and the output end of the bottom adjustment cylinder is connected to the assembly box in the bottom assembly group.

[0038] On the basis of the foregoing solution, a position detection sensor is further arranged on the assembly power box, and a position detection block adapted to the position detection sensor is arranged on one side of each housing positioning seat.

[0039] The beneficial effects of the present invention are:

[0040] 1. In the present invention, when assembling the stepper motor housing, a feeding system for loading the bottom cover, the housing and the end cover is installed on one side of the material taking component for the material taking and placing operation of the bottom cover, the housing and the end cover, respectively. By starting the horizontal adjustment electric cylinder and the vertical adjustment electric cylinder in the material taking component and starting the power motor in the power circulation component, the material taking clamping claw group sequentially places the bottom cover, the housing and the end cover on the conveying system in the positioning through hole in the housing positioning seat. Under the limit of the positioning through hole, the pre-assembly operation of the bottom cover, the housing and the end cover can be completed;

[0041] 2. The present invention, after pre-assembling the motor casing, under the cooperation of the position detection sensor and the position detection block, makes the pre-assembled motor casing be at the automatic assembly component, that is, below the material taking component for the end cover taking and placing operation, by starting the assembly motor in the automatic assembly component, the output end of the assembly motor drives a plurality of torque screwdrivers to rotate, by starting the corresponding longitudinal adjustment electric cylinder and the bottom adjustment cylinder, the torque screwdriver can be driven to move toward the fixing screws on the end cover and the bottom cover, and the fixing screws on the end cover and the bottom cover are threadedly connected to the housing by the rotating torque screwdriver, thereby realizing the assembly operation of the motor casing. Compared with the traditional manual tightening of the fixing screws to complete the assembly of the motor casing, by setting a plurality of synchronously moving torque screwdrivers, not only the assembly efficiency is high, but also the phenomenon of untightened or missed screws will not be caused, thereby greatly improving the assembly efficiency and assembly quality of the motor casing;

[0042] 3. In the present invention, after the motor casing is assembled, the power circulation assembly is used to move the motor casing to the material taking assembly for the whole machine to take out the whole machine from the casing positioning seat, and then the material taking assembly is used to take out the whole machine from the casing positioning seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0046] Figure 3 It is a structural schematic diagram of the casing positioning seat in the present invention;

[0047] Figure 4 It is a partial cross-sectional structural diagram of the assembly power box, the material taking rod, the circulation assembly plate, the power circulation assembly and the bottom assembly part in the present invention;

[0048] Figure 5 For the present invention Figure 4A schematic diagram of the local enlarged structure at B in the middle;

[0049] Figure 6 It is a partial cross-sectional structural diagram of the cooperation between the cross material taking box, the material taking assembly and the top assembly part in the present invention;

[0050] Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at C in the middle;

[0051] Figure 8 It is a schematic diagram of the structure of the present invention in cooperation with the bottom cover, the shell and the end cover.

[0052] In the figure: 001, power cycle component; 002, material collection component; 003, automatic assembly component;

[0053] 1. Assemble the power box; 2. Pick-up rod; 3. Circulation assembly plate; 4. Casing positioning seat; 5. Cross pick-up box; 6. Circulation pipe; 7. Power motor; 8. Power gearbox; 9. Bevel gear one; 10. Bevel gear two; 11. Pick-up clamping claw group; 12. Horizontal adjustment electric cylinder; 13. Horizontal adjustment frame; 14. Vertical adjustment electric cylinder; 15. Vertical adjustment frame; 16. Assembly box; 17. Assemble the motor; 18. Assemble the main gear; 19. Torque screwdriver; 20. Assemble the slave gear; 21. Bottom adjustment cylinder; 22. Position detection sensor; 23. Position detection block; 24. Bottom cover; 25. Shell; 26. End cover. DETAILED DESCRIPTION

[0054] The following will be combined with 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.

[0055] like Figures 1 to 8 As shown, this embodiment proposes an automatic assembly device for a stepper motor casing, including an assembly power box 1, a casing positioning seat 4, a cross-feeding box 5 and an automatic assembly component 003.

[0056] As mentioned above, a material picking rod 2 is penetrated on the assembly power box 1, and a circulation assembly disk 3 is rotatably arranged on the material picking rod 2. The circulation assembly disk 3 is located above the assembly power box 1, and a power circulation component 001 for rotating the circulation assembly disk 3 is arranged in the assembly power box 1. The power circulation component 001 includes a circulation pipe 6 and a circulation power part. The circulation pipe 6 penetrates and is rotatably arranged on the assembly power box 1. One end of the circulation pipe 6 is connected to the circulation assembly disk 3. The material picking rod 2 is located in the circulation pipe 6. The circulation power part is arranged in the assembly power box 1, and the circulation power part is connected to the circulation pipe 6.

[0057] Among them, the circulating power part includes a power motor 7, a power gearbox 8, a bevel gear 1 9 and a bevel gear 2 10. The power motor 7 is installed in the assembly power box 1, the power gearbox 8 is installed in the assembly power box 1, the input end of the power gearbox 8 is connected to the output end of the power motor 7, the bevel gear 1 9 is arranged on the output end of the power gearbox 8, the bevel gear 2 10 is arranged on the circulation pipe 6, and the bevel gear 2 10 is meshed with the bevel gear 1 9.

[0058] Specifically, the power motor 7 is started, and the output end of the power motor 7 drives the input end of the power gearbox 8 to rotate. Through the deceleration and torque increase of the power gearbox 8, the output end of the power gearbox 8 drives the bevel gear 1 9 to rotate, and the rotation of the bevel gear 1 9 drives the bevel gear 2 10 to rotate. The rotation of the bevel gear 2 10 drives the circulation pipe 6 to rotate, and the rotation of the circulation pipe 6 drives the circulation assembly disk 3 to rotate. The rotation of the circulation assembly disk 3 drives the casing positioning seat 4 to move.

[0059] As mentioned above, a position detection sensor 22 is also provided on the assembled power box 1 , and a position detection block 23 matched with the position detection sensor 22 is provided on one side of each casing positioning seat 4 .

[0060] Specifically, when the circulating assembly disk 3 drives the housing positioning seat 4 to rotate, the housing positioning seat 4 can be accurately positioned by detecting the positions of the position detection sensor 22 and the corresponding position detection block 23 .

[0061] As mentioned above, there are multiple casing positioning seats 4, and the casing positioning seats 4 are arranged at equal angles on the circulation assembly disk 3. The casing positioning seats 4 are provided with limiting grooves for fixing the end cover 26, the shell 25 and the bottom cover 24 in sequence from top to bottom, and the casing positioning seats 4 and the circulation assembly disk 3 are provided with positioning through holes corresponding to the fixing bolts on the bottom cover 24, and the positioning through holes are connected to the limiting grooves.

[0062] Among them, the shape of the limiting groove does not need to be exactly the same as the shape of the end cover 26, the shell 25 and the bottom cover 24. It only needs that after the end cover 26, the shell 25 and the bottom cover 24 are placed in the limiting groove, part of the limiting groove can contact the end cover 26, the shell 25 or the bottom cover 24 to limit the end cover 26, the shell 25 and the bottom cover 24. The opened limiting groove only needs to not affect the normal material taking and placing operation of the material taking component 002.

[0063] As mentioned above, the cross material picking box 5 is arranged on the material picking rod 2, and four material picking components 002 are arranged at equal angles in the cross material picking box 5. The four material picking components 002 are used for the material picking and placing operations of the bottom cover 24, the shell 25, the end cover 26 and the whole machine in sequence. The material picking component 002 includes a transverse adjustment part, a longitudinal adjustment part and a material picking claw group 11. The transverse adjustment part is arranged in the cross material picking box 5, the longitudinal adjustment part is arranged on the transverse adjustment part, and the material picking claw group 11 is arranged on the longitudinal adjustment part.

[0064] Among them, the material picking claw group 11 is a commonly used mechanical equipment in the prior art for clamping materials with the end cover 26, the shell 25 and the bottom cover 24. The specific structure is not the main innovation of this application. It only needs to be able to stably pick up materials with the end cover 26, the shell 25 and the bottom cover 24 and place them in the limiting groove.

[0065] Among them, the transverse adjustment part includes a transverse adjustment electric cylinder 12 and a transverse adjustment frame 13. The transverse adjustment electric cylinder 12 is installed in the cross material box 5, and the transverse adjustment frame 13 is arranged on the output end of the transverse adjustment electric cylinder 12. The longitudinal adjustment part is arranged on the transverse adjustment frame 13. When the transverse adjustment electric cylinder 12 is started, the output end of the transverse adjustment electric cylinder 12 drives the transverse adjustment frame 13 to move.

[0066] Among them, the longitudinal adjustment part includes a longitudinal adjustment electric cylinder 14 and a longitudinal adjustment frame 15. The longitudinal adjustment electric cylinder 14 is installed on the horizontal adjustment frame 13. The longitudinal adjustment frame 15 is arranged on the output end of the longitudinal adjustment electric cylinder 14. The material picking claw group 11 is installed on the longitudinal adjustment frame 15, and the top assembly part is arranged on one side of the longitudinal adjustment frame 15.

[0067] Specifically, the longitudinal adjustment electric cylinder 14 is started, and the longitudinal adjustment electric cylinder 14 drives the longitudinal adjustment frame 15 to move. The movement of the longitudinal adjustment frame 15 can drive the material taking clamping claw group 11 and the top assembly part to move.

[0068] As mentioned above, the automatic assembly component 003 includes a top assembly part and a bottom assembly part, which are used for the synchronous assembly operation of the bottom cover 24 and the end cover 26. The top assembly part is arranged on one side of the material taking component 002 for taking and placing the end cover 26, and the bottom assembly part is arranged on the assembly power box 1. The top assembly part includes an assembly box 16, an assembly motor 17 and a fastening group. The assembly box 16 is arranged on one side of the longitudinal adjustment frame 15, and the assembly motor 17 is installed on the assembly box 16. The output end of the assembly box 16 passes through the assembly box 16 and is provided with an assembly main gear 18. There are multiple fastening groups, and the fastening groups are rotatably arranged on the assembly box 16, and the fastening groups are meshed with the assembly main gear 18.

[0069] Among them, the fastening group includes a torque screwdriver 19 and an assembly slave gear 20. The torque screwdriver 19 penetrates and is rotatably set on the assembly box 16. The torque screwdriver 19 is adapted to the fixing bolts on the bottom cover 24. The assembly slave gear 20 is set on the torque screwdriver 19, and the assembly slave gear 20 is meshed with the assembly main gear 18.

[0070] Among them, the bottom assembly part includes a bottom assembly group and a bottom positioning cylinder 21. The bottom assembly group has the same structure as the top assembly part. The bottom positioning cylinder 21 is installed on the assembly power box 1, and the output end of the bottom positioning cylinder 21 is connected to the assembly box 16 in the bottom assembly group.

[0071] Specifically, when assembling the stepper motor casing, a feeding system for loading the bottom cover 24, the shell 25 and the end cover 26 is installed on one side of the material picking component 002 used for the material picking and placing operations of the bottom cover 24, the shell 25 and the end cover 26. By starting the horizontal adjustment electric cylinder 12 and the vertical adjustment electric cylinder 14 in the material picking component 002 and starting the power motor 7 in the power circulation component 001, the material picking claw group 11 places the bottom cover 24, the shell 25 and the end cover 26 on the conveying system in the positioning through holes in the casing positioning seat 4 in sequence. Under the limit of the positioning through holes, the pre-assembly operation of the bottom cover 24, the shell 25 and the end cover 26 can be completed.

[0072] After the motor casing is pre-assembled, with the cooperation of the position detection sensor 22 and the position detection block 23, the pre-assembled motor casing is placed at the automatic assembly component 003, that is, below the material picking component 002 for the end cover 26 material picking and placing operation, by starting the assembly motor 17 in the automatic assembly component 003, the assembly main gear 18 is driven to rotate by the output end of the assembly motor 17, and the rotation of the assembly main gear 18 drives the assembly slave gear 20 to rotate, and the rotation of the assembly slave gear 20 drives multiple torque screwdrivers 19 to rotate synchronously, and by starting the corresponding longitudinal adjustment electric cylinder 14 and the bottom adjustment cylinder 21, the torque screwdriver 19 can be driven to move toward the fixing screws on the end cover 26 and the bottom cover 24, and the fixing screws on the end cover 26 and the bottom cover 24 are threadedly connected to the housing 25 by the rotating torque screwdriver 19, thereby realizing the assembly operation of the motor casing.

[0073] Among them, the torque screwdriver 19 is a common device in the prior art that has automatic torque adjustment and is used to tighten bolts. The specific torque adjustment function is not the main innovation point of this application. As long as it can tighten the bolts required for assembly with a specified torque when assembling the stepper motor housing, it will suffice.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stepper motor housing automatic assembly device, characterized in that: include: An assembly power box (1), wherein a material taking rod (2) is provided through the assembly power box (1), a circulating assembly disk (3) is rotatably provided on the material taking rod (2), the circulating assembly disk (3) is located above the assembly power box (1), and a power circulation component (001) for rotating the circulating assembly disk (3) is provided in the assembly power box (1); A casing positioning seat (4), wherein a plurality of casing positioning seats (4) are provided, and the casing positioning seats (4) are arranged at equal angles on the circulation assembly disk (3), and the casing positioning seat (4) is provided with limiting grooves for fixing the end cover (26), the housing (25) and the bottom cover (24) in sequence from top to bottom, and the casing positioning seat (4) and the circulation assembly disk (3) are both provided with positioning through holes corresponding to the fixing bolts on the bottom cover (24), and the positioning through holes are connected to the limiting grooves; A cross material picking box (5), the cross material picking box (5) being arranged on the material picking rod (2), four material picking assemblies (002) being arranged at equal angles in the cross material picking box (5), the four material picking assemblies (002) being used in sequence for the material picking and placing operations of the bottom cover (24), the shell (25), the end cover (26) and the whole machine; An automatic assembly component (003), the automatic assembly component (003) comprising a top assembly part and a bottom assembly part, used for synchronous assembly of a bottom cover (24) and an end cover (26), the top assembly part being arranged on one side of the material taking component (002) used for taking and placing materials on the end cover (26), and the bottom assembly part being arranged on the assembly power box (1).

2. The automatic assembly device for a stepper motor housing according to claim 1, characterized in that: The power cycle component (001) comprises: A circulation pipe (6), the circulation pipe (6) penetrates and is rotatably arranged on the assembly power box (1), one end of the circulation pipe (6) is connected to the circulation assembly disk (3), and the material taking rod (2) is located in the circulation pipe (6); A circulating power unit, wherein the circulating power unit is arranged in the assembly power box (1), and the circulating power unit is connected to the circulating pipe (6).

3. The automatic assembly device for a stepping motor housing according to claim 2, characterized in that: The circulating power unit comprises: A power motor (7), wherein the power motor (7) is installed in the assembly power box (1); A power gearbox (8), the power gearbox (8) being installed in the assembly power box (1), the input end of the power gearbox (8) being connected to the output end of the power motor (7); Bevel gear one (9), the bevel gear one (9) being arranged on the output end of the power transmission box (8); Bevel gear 2 (10), the bevel gear 2 (10) is arranged on the circulation pipe (6), and the bevel gear 2 (10) is meshed with the bevel gear 1 (9).

4. The automatic assembly device for a stepping motor housing according to claim 3, characterized in that: The material taking component (002) comprises: A transverse positioning portion, the transverse positioning portion being arranged in the cross-feeding box (5); A longitudinal adjustment portion, wherein the longitudinal adjustment portion is arranged on the transverse adjustment portion; A material picking clamping claw group (11), wherein the material picking clamping claw group (11) is arranged on the longitudinal adjustment portion.

5. The automatic assembly device for a stepping motor housing according to claim 4, characterized in that: The lateral positioning portion comprises: A horizontal adjustment electric cylinder (12), wherein the horizontal adjustment electric cylinder (12) is installed in the cross material taking box (5); A horizontal adjustment frame (13), wherein the horizontal adjustment frame (13) is arranged on the output end of the horizontal adjustment electric cylinder (12), and the longitudinal position adjustment part is arranged on the horizontal adjustment frame (13).

6. The automatic assembly device for a stepping motor housing according to claim 5, characterized in that: The longitudinal adjustment unit comprises: A longitudinal adjustment electric cylinder (14), wherein the longitudinal adjustment electric cylinder (14) is mounted on the transverse adjustment frame (13); A longitudinal adjustment frame (15) is arranged on the output end of the longitudinal adjustment electric cylinder (14), the material taking clamping claw group (11) is installed on the longitudinal adjustment frame (15), and the top end assembly part is arranged on one side of the longitudinal adjustment frame (15).

7. The automatic assembly device for a stepping motor housing according to claim 6, characterized in that: The top assembly portion comprises: An assembly box (16), wherein the assembly box (16) is arranged on one side of the longitudinal adjustment frame (15); An assembly motor (17), the assembly motor (17) being mounted on the assembly box (16), the output end of the assembly box (16) passing through the assembly box (16) and being provided with an assembly main gear (18); A fastening group, wherein a plurality of fastening groups are provided, the fastening groups are rotatably arranged on the assembly box (16), and the fastening groups are meshed with the assembly main gear (18).

8. The automatic assembly device for a stepping motor housing according to claim 7, characterized in that: The fastening group comprises: A torque screwdriver (19), the torque screwdriver (19) is penetrated and rotatably disposed on the assembly box (16), and the torque screwdriver (19) is adapted to the fixing bolts on the bottom cover (24); An assembling slave gear (20) is arranged on the torque screwdriver (19), and the assembling slave gear (20) is meshed with the assembling master gear (18).

9. The automatic assembly device for a stepping motor housing according to claim 8, characterized in that: The bottom assembly portion comprises: A bottom assembly group, the bottom assembly group having the same structure as the top assembly part; A bottom end positioning cylinder (21), wherein the bottom end positioning cylinder (21) is mounted on the assembly power box (1), and an output end of the bottom end positioning cylinder (21) is connected to the assembly box (16) in the bottom end assembly group.

10. The automatic assembly device for a stepping motor housing according to claim 9, characterized in that: The assembly power box (1) is also provided with a position detection sensor (22), and one side of each of the housing positioning seats (4) is provided with a position detection block (23) adapted to the position detection sensor (22).

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