Motor end cover assembly equipment and assembly method for small motor processing

Abstract

The present invention belongs to the technical field of motor assembly equipment, and specifically relates to a motor end cover assembly equipment and an assembly method for small motor processing, comprising a machine body; a turntable, the turntable is rotatably mounted on the machine body and used to move the cover body; a limiting mechanism, used to limit the cover body, the limiting mechanism comprising a cylinder fixedly connected to the turntable, the cylinder having a lifting rod slidably connected inside, and the upper end of the lifting rod is threadedly connected to a limiting frame. The present invention can limit the cover body in the process of inserting the cover body into the bearing member, and in the process of inserting the cover body into the terminal member, it is convenient to align the insertion hole of the cover body with the terminal member, and in the process of moving the cover body from the bearing mounting mechanism to the terminal mounting mechanism, the rotation of the cover body itself is reduced, and the terminal member is conveniently inserted and installed in the insertion hole of the cover body, thereby facilitating the assembly of the end cover.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor assembly equipment, and in particular relates to a motor end cover assembly device and an assembly method for small motor processing. Background Art

[0002] During the processing and assembly of small motors such as micro DC motors, the motor end cover needs to be assembled and then pressed and assembled with the shell. The motor end cover mainly includes a cover body, a bearing part and a terminal part. A center hole is opened inside the cover body for inserting and installing the bearing part. Insertion holes are opened on both sides of the cover body for inserting and installing the terminal part. A brush is provided at one end of the terminal part close to the bearing part. When assembling the end cover, the bearing part is first pressed down and inserted into the center hole of the cover body by the bearing installation mechanism, and then the two terminal parts are driven by the terminal installation mechanism to be inserted into the two insertion holes of the cover body, thereby realizing the assembly of the end cover.

[0003] When existing motor end cover assembly equipment assembles the end cover, in the process of moving the cover body from the bearing mounting mechanism to the terminal mounting mechanism, the cover body is prone to rotate if it is round, so that when the terminal piece is inserted into the cover body for installation, the insertion hole of the cover body is not aligned with the terminal piece and an offset occurs, making it difficult to insert and install the terminal piece in the insertion hole of the cover body. If the offset is large, the terminal piece may even bend and be damaged, making it inconvenient to assemble the end cover. Summary of the invention

[0004] The purpose of the present invention is to provide a motor end cover assembly device and an assembly method for small motor processing, which can limit the cover body through a limiting mechanism during the process of inserting the cover body into the bearing installation process, and facilitate the alignment of the insertion hole of the cover body with the terminal part during the process of inserting the cover body into the terminal installation process. In the process of moving the cover body from the bearing installation mechanism to the terminal installation mechanism, the rotation of the cover body itself is reduced, which facilitates the insertion and installation of the terminal part in the insertion hole of the cover body, thereby facilitating the assembly of the end cover.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A motor end cover assembly device, comprising:

[0007] A machine body, on which a bearing mounting mechanism and a terminal mounting mechanism are fixedly mounted;

[0008] A turntable, which is rotatably mounted on the machine body and is used to move the cover body;

[0009] A limiting mechanism, wherein a plurality of limiting mechanisms are provided and are all fixedly mounted on the turntable, and are used to limit the cover body, wherein the limiting mechanism comprises a cylinder fixedly connected to the turntable, wherein a lifting rod is slidably connected inside the cylinder, wherein the upper end of the lifting rod is threadedly connected to a limiting frame, wherein a first limiting assembly is provided between the limiting frame and the lifting rod, and a second limiting assembly is provided between the lower end of the limiting frame and the cylinder;

[0010] Among them, after the bearing installation mechanism drives the bearing part to press the cover body down, the cover body drives the limit frame to move downward and rotate at the same time, so that the limit frame is aligned with the insertion hole of the cover body, inserted and limited, and the terminal installation mechanism drives the terminal part to be inserted into the insertion hole of the cover body, pushes out the limit frame and releases the limit.

[0011] As a preferred solution of the motor end cover assembly equipment described in the present invention, the limiting mechanism also includes a connecting plate and a retaining ring, the connecting plate is fixedly connected to the inner wall of the cylinder, the lifting rod and the connecting plate slide together in the vertical direction, the lifting rod and the cylinder are slidably connected through the connecting plate, the retaining ring is arranged on the outside of the limiting frame, the retaining ring is fixedly connected to the inner wall of the cylinder, the first limiting component is fixedly connected to the bottom of the limiting frame, and the second limiting component is fixedly connected to the bottom of the connecting plate.

[0012] As a preferred solution of the motor end cover assembly equipment described in the present invention, the interior of the limit frame is provided with an inner cavity, the upper end of the lifting rod is located inside the inner cavity, the inner wall of the inner cavity is provided with an internal thread, the outer side of the upper end of the lifting rod is provided with an external thread, and the internal thread and the external thread are threaded together.

[0013] As a preferred solution of the motor end cover assembly equipment described in the present invention, both ends of the limit frame are integrally provided with plugs, and the plugs are slidably matched with the insertion holes of the cover body, a baffle is fixedly connected to the lifting rod, and a first spring is provided between the baffle and the bottom of the limit frame, the lower end of the first spring is fixedly connected to the baffle, and the upper end of the first spring abuts against the bottom of the limit frame.

[0014] As a preferred solution of the motor end cover assembly equipment described in the present invention, the first limiting component includes a first electric telescopic rod fixedly connected to the bottom of the limiting frame, the output end of the first electric telescopic rod is fixedly connected to the first limiting column, the interior of the lifting rod is provided with a first limiting hole, the interior of the limiting frame is provided with a second limiting hole, and the first limiting hole and the second limiting hole are both slidably matched with the first limiting column.

[0015] As a preferred solution of the motor end cover assembly equipment described in the present invention, when the retaining ring is in contact with the bottom of the cover body, the first limiting hole and the second limiting hole are aligned. At this time, the two plug-ins are respectively located at the two ends of the cylinder, which are used to align the plug-ins with the terminal member when installing the terminal member.

[0016] As a preferred solution of the motor end cover assembly equipment described in the present invention, an air jet hole is opened on the top inner wall of the inner cavity, the air jet hole is connected with the second limiting hole through the inner cavity, and the air jet hole is aligned with the center hole of the cover body, so as to blow away dust and other impurities in the center hole of the cover body.

[0017] As a preferred solution of the motor end cover assembly equipment described in the present invention, wherein: the lower end of the lifting rod is fixedly connected to the limiting part, a sleeve is arranged on the outer side of the limiting part, the sleeve and the limiting part slide together in the vertical direction, the sleeve is fixedly connected to the bottom of the connecting plate, the diameter of the limiting part is larger than the aperture of the connecting plate, a second spring is arranged between the bottom of the limiting part and the cylinder body, the lower end of the second spring is fixedly connected to the inner side of the bottom of the cylinder body, and the upper end of the second spring is fixedly connected to the bottom of the limiting part.

[0018] As a preferred solution of the motor end cover assembly equipment described in the present invention, the second limiting assembly includes a second electric telescopic rod arranged outside the lifting rod, the second electric telescopic rod is fixedly connected to the connecting plate, the output end of the second electric telescopic rod is fixedly connected to the second limiting column, a third limiting hole is opened inside the limiting part, and a fourth limiting hole is opened inside the sleeve, and the third limiting hole and the fourth limiting hole are both slidably matched with the second limiting column.

[0019] The assembly method for small motor processing is applicable to the above-mentioned motor end cover assembly equipment. The specific assembly method is as follows:

[0020] S1: Place the cover body into the limiting mechanism. After the turntable rotates, it drives the limiting mechanism to move to the bearing installation mechanism. After the second limiting assembly works, it limits the lifting rod and the cylinder. After the bearing installation mechanism works, it drives the bearing member to be pressed down and inserted into the center hole of the cover body. At the same time, the limiting frame is inserted into the insertion hole of the cover body to limit the cover body. After the first limiting assembly works, it limits the limiting frame and the lifting rod to realize the assembly of the bearing member in the end cover.

[0021] S2: After the turntable rotates, it drives the limiting mechanism to move to the terminal installation mechanism. After the second limiting assembly works, the limiting of the lifting rod and the cylinder is released. After the terminal installation mechanism works, it drives the terminal piece to be pressed down and inserted into the insertion hole of the cover body. At the same time, the terminal piece is pushed out of the limiting frame and the limiting frame is released from the cover body, so as to realize the assembly of the terminal piece in the end cover;

[0022] S3: After the turntable rotates, it drives the limit mechanism to leave the terminal installation mechanism, thereby realizing the assembly of the end cover in the processing of small motors.

[0023] The technical effects achieved by the present invention are:

[0024] The present invention adopts the design of a limiting mechanism, which can limit the cover body through the limiting frame during the process of inserting the cover body into the bearing member, and when the bearing installation mechanism drives the bearing member to press the cover body downward, the cover body pushes the limiting frame to move downward, and at the same time, the limiting frame also rotates along the upper end of the lifting rod, so that the inserting piece is inserted into the insertion hole of the cover body during the process of rotating along the bottom of the cover body, and the first limiting component limits the rotation of the limiting frame after working, so that the relative position between the insertion hole of the cover body and the cylinder body is kept fixed, and in the process of inserting the terminal member into the cover body, it is convenient to align the insertion hole of the cover body with the terminal member, so that in the process of moving the cover body from the bearing installation mechanism to the terminal installation mechanism, the rotation of the cover body itself is reduced, which is convenient for the terminal member to be inserted and installed in the insertion hole of the cover body, and then it is convenient for the assembly of the end cover;

[0025] The present invention adopts the design of the limiting mechanism, which can make the terminal member push out of the limiting frame and release the limiting frame from limiting the cover body during the process of inserting the terminal member into the cover body through the lifting rod and the limiting frame. After the terminal member is inserted and installed, the lifting rod drives the limiting frame to lift the end cover under the elastic action of the second spring, so as to facilitate the subsequent removal of the end cover from the cylinder body, thereby facilitating the assembly of the motor end cover.

[0026] The present invention adopts the design of a limiting mechanism, which can blow air to the center hole of the cover body to remove impurities through the inner cavity and the air jet hole during the process of inserting the bearing component into the cover body for installation. During the process of the limiting frame rotating and moving downward along the upper end of the lifting rod, the internal space capacity of the inner cavity is reduced, and the upper end of the lifting rod pushes the gas inside the inner cavity to be discharged into the center hole of the cover body through the air jet hole, thereby reducing the situation where dust and other impurities in the center hole of the cover body hinder the bearing component from being inserted and installed in the center hole of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is an exploded schematic diagram of the rotating disk and the limiting mechanism in the present invention;

[0029] Figure 3 is a schematic cross-sectional view of the cylinder in the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the limiting frame and the connecting plate in the present invention;

[0031] Figure 5 The present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0032] Figure 6 is a cross-sectional schematic diagram of the present invention in which the limiting frame is not inserted into the cover body insertion hole;

[0033] Figure 7 The present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0034] Figure 8 It is a cross-sectional schematic diagram of the limiting frame of the present invention being inserted into the cover body insertion hole;

[0035] Fig. 9 The present invention Figure 8 The enlarged schematic diagram of the center C;

[0036] Fig.10 It is a cross-sectional schematic diagram of the limiting mechanism and the cover body in the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 10. Machine body; 11. Bearing installation mechanism; 12. Terminal installation mechanism; 13. Feed conveyor belt; 14. Discharge conveyor belt; 15. First grabbing mechanical arm; 16. Second grabbing mechanical arm; 20. Turntable; 30. Limiting mechanism; 31. Cylinder; 32. Lifting rod; 33. Limiting frame; 34. First limiting assembly; 35. Second limiting assembly; 36. Connecting plate; 37. Retaining ring; 38. First spring; 39. Second Spring; 321, external thread; 322, baffle; 323, first limiting hole; 324, limiting portion; 325, third limiting hole; 331, inner cavity; 332, internal thread; 333, insert; 334, second limiting hole; 335, jet hole; 341, first electric telescopic rod; 342, first limiting column; 351, second electric telescopic rod; 352, second limiting column; 361, sleeve; 362, fourth limiting hole. DETAILED DESCRIPTION

[0039] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0040] Example 1

[0041] like Figures 1 to 3As shown, it is the first embodiment of the present invention, which provides a motor end cover assembly device and a method of using the same, including a body 10, on which a bearing mounting mechanism 11 and a terminal mounting mechanism 12 are fixedly mounted; a turntable 20, which is rotatably mounted on the body 10 and is used to move the cover body; a limiting mechanism 30, which is provided with a plurality of limiting mechanisms 30 and is fixedly mounted on the turntable 20 and is used to limit the cover body, the limiting mechanism 30 includes a cylinder 31 fixedly connected to the turntable 20, a lifting rod 32 is slidably connected inside the cylinder 31, the upper end of the lifting rod 32 is threadedly connected to a limiting frame 33, a first limiting component 34 is provided between the limiting frame 33 and the lifting rod 32, and a second limiting component 35 is provided between the lower end of the limiting frame 33 and the cylinder 31.

[0042] It should be noted that the bearing installation mechanism 11 is a prior art, and the working end of the bearing installation mechanism 11 is used to drive the bearing member to be pressed down and inserted into the center hole of the cover body, which will not be repeated here. The terminal installation mechanism 12 is a prior art, and the working end of the terminal installation mechanism 12 is used to drive the terminal member to be pressed down and inserted into the insertion hole of the cover body, which will not be repeated here. A feed conveyor belt 13 and a discharge conveyor belt 14 are also provided on the body 10 and are respectively located on both sides of the turntable 20. The feed conveyor belt 13 is used to transport the cover body to the motor end cover assembly equipment, and the discharge conveyor belt 14 is used to remove the assembled end cover from the motor end cover assembly equipment. The equipment is moved to other subsequent equipment. A first grabbing robot arm 15 and a second grabbing robot arm 16 are also provided on the body 10. The first grabbing robot arm 15 is located between the feed conveyor belt 13 and the turntable 20, and is used to move the cover body on the feed conveyor belt 13 to the limiting mechanism 30 in the turntable 20. The second grabbing robot arm 16 is located between the turntable 20 and the discharge conveyor belt 14, and is used to move the end cover assembled in the limiting mechanism 30 to the discharge conveyor belt 14. The feed conveyor belt 13, the discharge conveyor belt 14, the first grabbing robot arm 15 and the second grabbing robot arm 16 are all existing technologies and are not described here.

[0043] When the present invention is in use, the feed conveyor belt 13 drives the cover body to move toward the turntable 20 after working, and the first grabbing mechanical arm 15 drives the cover body to move into the limiting mechanism 30 in the turntable 20 after working. After the turntable 20 works, it drives the limiting mechanism 30 to rotate to the bottom of the working end of the bearing installation mechanism 11. After the bearing installation mechanism 11 works, it drives the bearing member to press down and insert into the center hole of the cover body, so that the cover body moves downward along the cylinder 31, and the cover body drives the limiting frame 33 to move downward along the lifting rod 32. At the same time, the limiting frame 33 also rotates along the upper end of the lifting rod 32, so that the limiting frame 33 is aligned with the insertion hole of the cover body after rotating, and the limiting frame 33 is inserted into the insertion hole of the cover body. After the first limiting assembly 34 works, it limits the limiting frame 33 and the lifting rod 32. The limit frame 33 no longer rotates and moves along the lifting rod 32, so that the relative position between the limit frame 33 and the cylinder 31 also remains fixed, so that in the process of inserting the terminal piece into the cover body, it is convenient to align the insertion hole of the cover body with the terminal piece, thereby facilitating the assembly of the end cover. After the turntable 20 works, it drives the limit mechanism 30 to rotate to the bottom of the working end of the terminal installation mechanism 12. After the terminal installation mechanism 12 works, it drives the terminal piece to be pressed down and inserted into the insertion hole of the cover body. At this time, the second limit assembly 35 works to release the limit between the lifting rod 32 and the cylinder 31, so that the terminal piece pushes the limit frame 33 inserted in the insertion hole of the cover body downward, releasing the limit of the cover body by the limit frame 33, and facilitating the subsequent removal of the assembled end cover from the cylinder 31.

[0044] Example 2

[0045] Reference Figures 1 to 10 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0046] like Figure 3 , Figure 4 , Figure 6 , Figure 8 and Fig.10 As shown, the limiting mechanism 30 also includes a connecting plate 36 and a retaining ring 37. The connecting plate 36 is fixedly connected to the inner wall of the cylinder 31. The lifting rod 32 slides with the connecting plate 36 in the vertical direction. The lifting rod 32 and the cylinder 31 are slidably connected through the connecting plate 36. The retaining ring 37 is arranged on the outside of the limiting frame 33. The retaining ring 37 is fixedly connected to the inner wall of the cylinder 31. The first limiting component 34 is fixedly connected to the bottom of the limiting frame 33, and the second limiting component 35 is fixedly connected to the bottom of the connecting plate 36.

[0047] It should be noted that the inner hole of the connecting plate 36 is rectangular, and the cross-sectional shape of the part where the lifting rod 32 slides along the connecting plate 36 is also rectangular, which is used to prevent the lifting rod 32 from rotating along the connecting plate 36 during the sliding process of the lifting rod 32 along the connecting plate 36.

[0048] According to the above structure, the lifting rod 32 and the connecting plate 36 cooperate with each other, so that the sliding process of the lifting rod 32 along the cylinder 31 is more stable. When the bearing installation mechanism 11 drives the bearing member to be pressed down and inserted into the cover body, and when the terminal installation mechanism 12 drives the terminal member to be pressed down and inserted into the cover body, the cover body moves downward along the cylinder 31. At this time, the bearing member or the terminal member is not fully inserted into the cover body, and the retaining ring 37 is used to prevent the cover body from continuing to move downward, thereby causing relative displacement between the bearing member or the terminal member and the cover body, which facilitates the smooth and complete insertion of the bearing member or the terminal member into the cover body and facilitates the assembly of the end cover.

[0049] like Figure 5 , Figure 7 and Fig. 9 As shown, an inner cavity 331 is opened inside the limiting frame 33, the upper end of the lifting rod 32 is located inside the inner cavity 331, the inner wall of the inner cavity 331 is provided with an internal thread 332, and the outer side of the upper end of the lifting rod 32 is provided with an external thread 321, and the internal thread 332 and the external thread 321 are threadedly matched.

[0050] According to the above structure, the internal thread 332 and the external thread 321 cooperate with each other, so that when the limit frame 33 moves up and down along the lifting rod 32, the limit frame 33 also rotates along the upper end of the lifting rod 32, thereby facilitating the limit frame 33 to rotate along the bottom of the cover body so that the limit frame 33 is aligned with the insertion hole of the cover body.

[0051] like Figure 3 , Figure 4 , Figure 6 , Figure 8 and Fig.10 As shown, both ends of the limit frame 33 are integrally provided with an insert 333, and the insert 333 slides with the insertion hole of the cover body. A baffle 322 is fixedly connected to the lifting rod 32, and a first spring 38 is provided between the baffle 322 and the bottom of the limit frame 33. The lower end of the first spring 38 is fixedly connected to the baffle 322, and the upper end of the first spring 38 abuts against the bottom of the limit frame 33.

[0052] It should be noted that the inserting piece 333 cooperates with the insertion hole of the cover body, so as to allow the limiting frame 33 to be inserted into the insertion hole of the cover body.

[0053] According to the above structure, when the bearing installation mechanism 11 drives the bearing member to be inserted into the pressing cover body, the cover body drives the limit frame 33 to approach the first baffle plate 322, so that the distance between the bottom of the limit frame 33 and the first baffle plate 322 is reduced, so that the first spring 38 is compressed and the height is reduced. After the first limit assembly 34 works, the relative position between the limit frame 33 and the lifting rod 32 is kept fixed, so that the distance between the bottom of the limit frame 33 and the first baffle plate 322 is kept fixed, and the height of the first spring 38 is limited. When the end cover is assembled, the limit on the first spring 38 is released, and the first spring 38 restores its height under the action of elasticity and pushes the limit frame 33 upward, so that the limit frame 33 moves upward along the lifting rod 32, and the limit frame 33 also rotates along the upper end of the lifting rod 32, which is convenient for the limit frame 33 to be reset.

[0054] like Figures 3 to 10 As shown, the first limiting assembly 34 includes a first electric telescopic rod 341 fixedly connected to the bottom of the limiting frame 33, the output end of the first electric telescopic rod 341 is fixedly connected to the first limiting column 342, the interior of the lifting rod 32 is provided with a first limiting hole 323, and the interior of the limiting frame 33 is provided with a second limiting hole 334, and the first limiting hole 323 and the second limiting hole 334 are both slidably matched with the first limiting column 342.

[0055] It should be noted that, in the initial state, the first limiting column 342 is not inserted into the first limiting hole 323 and the second limiting hole 334 .

[0056] According to the above structure, when it is necessary to limit the limit frame 33 and the lifting rod 32 through the first limit assembly 34, the output end of the first electric telescopic rod 341 drives the first limit column 342 to be inserted into the first limit hole 323 and the second limit hole 334 after working, and limits the second limit hole 334 and the first limit hole 323, thereby limiting the limit frame 33 and the lifting rod 32. When it is necessary to release the limit on the limit frame 33 and the lifting rod 32, the output end of the first electric telescopic rod 341 drives the first limit column 342 to be pulled out from the first limit hole 323 and the second limit hole 334 after working, so that the limit on the second limit hole 334 and the first limit hole 323 is released, thereby releasing the limit on the limit frame 33 and the lifting rod 32.

[0057] like Figure 8 and Fig. 9 As shown, when the retaining ring 37 fits with the bottom of the cover body, the first limiting hole 323 and the second limiting hole 334 are aligned. At this time, the two plug-ins 333 are respectively located at the two ends of the cylinder 31, which are used to align the plug-ins 333 with the terminal when installing the terminal.

[0058] It should be noted that when the rotary disk 20 drives the limiting mechanism 30 to rotate to below the working end of the terminal installation mechanism 12 , the two terminal pieces fixed to the working end of the terminal installation mechanism 12 are respectively located above the two ends of the cylinder 31 .

[0059] When the retaining ring 37 is in contact with the bottom of the cover body, the cover body no longer moves downward along the cylinder 31, and the cover body and the limiting frame 33 no longer rotate. At this time, the two inserting pieces 333 are respectively located at the two ends of the cylinder 31, so that the two insertion holes of the cover body are also located at the two ends of the cylinder 31. At this time, the first limiting hole 323 and the second limiting hole 334 are aligned, so that the first electric telescopic rod 341 drives the first limiting column 342 to be inserted into the first limiting hole 323 and the second limiting hole 334 after working, and limits the limiting frame 33 and the lifting rod 32. In addition, since the lifting rod 32 cannot rotate along the cylinder 31, the insertion hole of the cover body is in the cylinder 31. The position remains fixed. During the process of the terminal installation mechanism 12 installing the terminal pieces on the cover body, it is convenient to keep the cover body insertion holes at the two ends of the cylinder 31 and aligned with the terminal pieces, thereby facilitating the assembly of the terminal pieces in the end cover. No matter what the position of the cover body insertion holes relative to the cylinder 31 is in the initial state, after the limit frame 33 is inserted into the cover body insertion hole, the limit frame 33 rotates and moves downward together with the cover body until the bottom of the cover body is blocked by the retaining ring 37 and fits with the retaining ring 37. At this time, the two insertion holes of the cover body are respectively located on both sides of the cylinder 31, so that the final position of the insertion hole is not affected by the initial state but is limited to both sides of the cylinder 31.

[0060] like Figure 5 and Figure 7 As shown, an air jet hole 335 is opened on the top inner wall of the inner cavity 331, and the air jet hole 335 is connected with the second limiting hole 334 through the inner cavity 331. The air jet hole 335 is aligned with the center hole of the cover body and is used to blow away dust and other impurities in the center hole of the cover body.

[0061] When the bearing is pressed down and inserted into the cover body by the output end of the bearing installation mechanism 11, due to the interference fit between the bearing and the center hole of the cover body, during the process of the bearing installation mechanism 11 pressing down the cover body, the bearing has not yet been inserted into the center hole of the cover body. At this time, the bearing and the cover body move downward along the cylinder 31 together, and the cover body drives the limiting frame 33 to move downward along the lifting rod 32, so that the distance between the upper end of the lifting rod 32 and the air injection hole 335 is reduced, and the internal space capacity of the inner cavity 331 is reduced. Then, when the top end of the lifting rod 32 moves to the top of the second limiting hole 334 relative to the limiting frame 33, the lifting rod 32 prevents the gas inside the inner cavity 331 from being discharged to the outside through the second limiting hole 334. At this time, the gas inside the inner cavity 331 can only be discharged to the outside through the air injection hole 335, so that the center hole of the cover body is blown and impurities are removed through the air injection hole 335, thereby reducing the situation where dust and other impurities in the center hole of the cover body hinder the bearing from being inserted and installed in the center hole of the cover body.

[0062] like Figure 4 , Figure 6 , Figure 8 and Fig.10 As shown, the lower end of the lifting rod 32 is fixedly connected to the limiting portion 324, and a sleeve 361 is provided on the outer side of the limiting portion 324. The sleeve 361 and the limiting portion 324 slide together in the vertical direction. The sleeve 361 is fixedly connected to the bottom of the connecting plate 36. The diameter of the limiting portion 324 is larger than the aperture of the connecting plate 36. A second spring 39 is provided between the bottom of the limiting portion 324 and the cylinder body 31. The lower end of the second spring 39 is fixedly connected to the inner side of the bottom of the cylinder body 31, and the upper end of the second spring 39 is fixedly connected to the bottom of the limiting portion 324.

[0063] It should be noted that, in the initial state, the top of the limiting portion 324 is in contact with the connecting plate 36 .

[0064] According to the above structure, in the process of the working end of the terminal installation mechanism 12 driving the terminal piece to be pressed down and inserted into the cover body, the second limiting component 35 releases the limiting of the lifting rod 32 and the connecting plate 36 after working, so that after the terminal piece moves downward and is inserted into the insertion hole of the cover body, the terminal piece pushes the limiting frame 33 to move downward. Since the first limiting component 34 has limited the limiting frame 33 and the lifting rod 32 after working, the limiting frame 33 drives the lifting rod 32 to move downward along the connecting plate 36, and the lifting rod 32 drives the limiting portion 324 to move downward along the sleeve 361 The second spring 39 is squeezed and its height is reduced. When the terminal piece is installed, the working end of the terminal installation mechanism 12 no longer presses down the cover body. The second spring 39 recovers its height under the elastic action and pushes the limit part 324 to move upward. The limit part 324 drives the lifting rod 32 to move upward, so that the top of the limit part 324 fits with the connecting plate 36. Since the diameter of the limit part 324 is larger than the aperture size of the connecting plate 36, the connecting plate 36 prevents the limit part 324 from continuing to move upward, thereby resetting the lifting rod 32.

[0065] like Figure 4 and Fig.10 As shown, the second limiting assembly 35 includes a second electric telescopic rod 351 arranged outside the lifting rod 32, the second electric telescopic rod 351 is fixedly connected to the connecting plate 36, the output end of the second electric telescopic rod 351 is fixedly connected to the second limiting column 352, a third limiting hole 325 is opened inside the limiting portion 324, and a fourth limiting hole 362 is opened inside the sleeve 361, and the third limiting hole 325 and the fourth limiting hole 362 are both slidably matched with the second limiting column 352.

[0066] It should be noted that, in the initial state, the second limiting column 352 is inserted into the third limiting hole 325 and the fourth limiting hole 362 .

[0067] According to the above structure, when it is necessary to limit the lifting rod 32 and the cylinder 31 through the second limiting assembly 35, the output end of the second electric telescopic rod 351 drives the second limiting column 352 to be inserted into the third limiting hole 325 and the fourth limiting hole 362 after working, so as to limit the lifting rod 32 and the sleeve 361, thereby limiting the lifting rod 32 and the cylinder 31; when it is necessary to release the limitation of the lifting rod 32 and the cylinder 31, the output end of the second electric telescopic rod 351 drives the second limiting column 352 to be pulled out from the third limiting hole 325 and the fourth limiting hole 362 after working, so that the limitation of the lifting rod 32 and the sleeve 361 is released, thereby releasing the limitation of the lifting rod 32 and the cylinder 31.

[0068] In order to enable those skilled in the art to have a further understanding of the motor end cover assembly device of the present invention, the present invention also provides an assembly method for small motor processing, which is applicable to the above-mentioned motor end cover assembly device. The specific assembly method is:

[0069] S1: The cover is placed in the limiting mechanism 30. The rotating disk 20 drives the limiting mechanism 30 to move to the bearing installation mechanism 11 after rotation. The second limiting assembly 35 limits the lifting rod 32 and the cylinder 31 after operation. The bearing installation mechanism 11 drives the bearing member to be pressed down and inserted into the center hole of the cover. At the same time, the limiting frame 33 is inserted into the insertion hole of the cover to limit the cover. The first limiting assembly 34 limits the limiting frame 33 and the lifting rod 32 after operation, so as to realize the assembly of the bearing member in the end cover.

[0070] S2: After the turntable 20 rotates, it drives the limiting mechanism 30 to move to the terminal installation mechanism 12. After the second limiting assembly 35 works, the limiting of the lifting rod 32 and the cylinder 31 is released. After the terminal installation mechanism 12 works, it drives the terminal piece to be pressed down and inserted into the insertion hole of the cover body, and at the same time, the terminal piece is pushed out of the limiting frame 33 and the limiting frame 33 on the cover body is released, so that the terminal piece in the end cover is assembled;

[0071] S3: After the rotating disk 20 rotates, it drives the limiting mechanism 30 to leave the terminal installation mechanism 12, thereby realizing the assembly of the end cover in the processing of the small motor.

[0072] The working principle of the present invention is as follows: when the bearing installation mechanism 11 installs the bearing part on the cover body, the bearing installation mechanism 11 presses down the cover body and makes the cover body move downward along the cylinder 31. During the downward movement of the cover body, the limit frame 33 is driven to rotate, so that the limit frame 33 is aligned with the insertion hole of the cover body, and the cover body is limited so that the insertion hole of the cover body is maintained at the positions at both ends of the cylinder 31. In the process of moving the cover body from the bearing installation mechanism 11 to the terminal installation mechanism 12, the rotation of the cover body itself is reduced. When the terminal installation mechanism 12 installs the terminal part on the cover body, the deviation caused by the misalignment between the insertion hole of the cover body and the terminal part is reduced, which facilitates the insertion and installation of the terminal part in the insertion hole of the cover body, thereby facilitating the assembly of the end cover.

[0073] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A motor end cover assembly device, characterized in that: include: A machine body (10), wherein a bearing mounting mechanism (11) and a terminal mounting mechanism (12) are fixedly mounted on the machine body (10); a turntable (20), the turntable (20) being rotatably mounted on the machine body (10) and being used to move the cover body; a limiting mechanism (30), wherein a plurality of limiting mechanisms (30) are provided and are all fixedly mounted on the rotating disk (20) and are used to limit the position of the cover body, wherein the limiting mechanism (30) comprises a cylinder (31) fixedly connected to the rotating disk (20), wherein a lifting rod (32) is slidably connected inside the cylinder (31), wherein the upper end of the lifting rod (32) is threadedly connected to a limiting frame (33), wherein a first limiting component (34) is provided between the limiting frame (33) and the lifting rod (32), and a second limiting component (35) is provided between the lower end of the limiting frame (33) and the cylinder (31); wherein, after the bearing installation mechanism (11) drives the bearing member to press the cover body downward, the cover body drives the limiting frame (33) to move downward and rotate simultaneously, so that the limiting frame (33) is aligned with the insertion hole of the cover body, inserted and limited, and the terminal installation mechanism (12) drives the terminal member to be inserted into the insertion hole of the cover body, pushes out the limiting frame (33) and releases the limit; The limiting mechanism (30) further comprises a connecting plate (36) and a retaining ring (37); the connecting plate (36) is fixedly connected to the inner wall of the cylinder (31); the lifting rod (32) and the connecting plate (36) are slidably matched in the vertical direction; the lifting rod (32) and the cylinder (31) are slidably connected via the connecting plate (36); the retaining ring (37) is arranged outside the limiting frame (33); the retaining ring (37) is fixedly connected to the inner wall of the cylinder (31); the first limiting assembly (34) is fixedly connected to the bottom of the limiting frame (33); and the second limiting assembly (35) is fixedly connected to the bottom of the connecting plate (36); The lower end of the lifting rod (32) is fixedly connected to a limiting portion (324); a sleeve (361) is provided on the outer side of the limiting portion (324); the sleeve (361) and the limiting portion (324) are slidably matched in the vertical direction; the sleeve (361) is fixedly connected to the bottom of the connecting plate (36); the diameter of the limiting portion (324) is larger than the aperture of the connecting plate (36); a second spring (39) is provided between the bottom of the limiting portion (324) and the cylinder (31); the lower end of the second spring (39) is fixedly connected to the inner side of the bottom of the cylinder (31); and the upper end of the second spring (39) is fixedly connected to the bottom of the limiting portion (324).

2. The motor end cover assembly equipment according to claim 1, characterized in that: An inner cavity (331) is provided inside the limiting frame (33), the upper end of the lifting rod (32) is located inside the inner cavity (331), an inner wall of the inner cavity (331) is provided with an internal thread (332), an outer side of the upper end of the lifting rod (32) is provided with an external thread (321), and the internal thread (332) and the external thread (321) are threadably matched.

3. The motor end cover assembly equipment according to claim 2, characterized in that: Both ends of the limiting frame (33) are integrally provided with inserting pieces (333), and the inserting pieces (333) are slidably matched with the insertion holes of the cover body. A baffle (322) is fixedly connected to the lifting rod (32), and a first spring (38) is provided between the baffle (322) and the bottom of the limiting frame (33). The lower end of the first spring (38) is fixedly connected to the baffle (322), and the upper end of the first spring (38) is in contact with the bottom of the limiting frame (33).

4. The motor end cover assembly equipment according to claim 3, characterized in that: The first limiting assembly (34) comprises a first electric telescopic rod (341) fixedly connected to the bottom of the limiting frame (33); the output end of the first electric telescopic rod (341) is fixedly connected to a first limiting column (342); a first limiting hole (323) is provided inside the lifting rod (32); a second limiting hole (334) is provided inside the limiting frame (33); and the first limiting hole (323) and the second limiting hole (334) are both slidably matched with the first limiting column (342).

5. The motor end cover assembly equipment according to claim 4, characterized in that: When the retaining ring (37) is fitted with the bottom of the cover body, the first limiting hole (323) and the second limiting hole (334) are aligned. At this time, the two inserting pieces (333) are respectively located at two ends of the cylinder (31), and are used to align the inserting pieces (333) with the terminal piece when the terminal piece is installed.

6. The motor end cover assembly equipment according to claim 4, characterized in that: An air jet hole (335) is provided on the inner wall at the top of the inner cavity (331); the air jet hole (335) is connected to the second limiting hole (334) through the inner cavity (331); the air jet hole (335) is aligned with the central hole of the cover body and is used to blow away dust and other impurities in the central hole of the cover body.

7. The motor end cover assembly equipment according to claim 1, characterized in that: The second limiting assembly (35) comprises a second electric telescopic rod (351) arranged outside the lifting rod (32); the second electric telescopic rod (351) is fixedly connected to the connecting plate (36); the output end of the second electric telescopic rod (351) is fixedly connected to a second limiting column (352); a third limiting hole (325) is provided inside the limiting portion (324); a fourth limiting hole (362) is provided inside the sleeve (361); and the third limiting hole (325) and the fourth limiting hole (362) are both slidably matched with the second limiting column (352).

8. An assembly method for small motor processing, characterized in that: The method is applicable to the motor end cover assembly device according to any one of claims 1 to 7, and the specific assembly method is: S1: The cover body is placed in the limiting mechanism (30), and the rotating disk (20) rotates to drive the limiting mechanism (30) to move to the bearing installation mechanism (11). After the second limiting component (35) works, it limits the lifting rod (32) and the cylinder (31). After the bearing installation mechanism (11) works, it drives the bearing member to be pressed down and inserted into the center hole of the cover body, and at the same time, the limiting frame (33) is inserted into the insertion hole of the cover body to limit the cover body. After the first limiting component (34) works, it limits the limiting frame (33) and the lifting rod (32), thereby realizing the assembly of the bearing member in the end cover; S2: After the rotating disk (20) rotates, it drives the limiting mechanism (30) to move to the terminal installation mechanism (12), and after the second limiting assembly (35) works, it releases the limiting of the lifting rod (32) and the cylinder (31), and after the terminal installation mechanism (12) works, it drives the terminal piece to be pressed down and inserted into the insertion hole of the cover body, and at the same time, the terminal piece is pushed out of the limiting frame (33) and the limiting of the cover body by the limiting frame (33) is released, so that the terminal piece in the end cover is assembled; S3: After the rotating disk (20) rotates, it drives the limiting mechanism (30) to leave the terminal installation mechanism (12), thereby realizing the assembly of the end cover in the processing of the small motor.

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