Multi-station assembling machine for assembling brush holder assembly and assembling method thereof

Abstract

The application discloses a multi-station assembling machine for assembling a brush holder assembly and an assembling method thereof, which comprises a disc with a plurality of clamping tables, a pair of feeding assemblies, a pair of bending assemblies and a discharging assembly, each clamping table is provided with a plurality of clamping frames for respectively clamping frames and bearing brush boxes in cooperation, the pair of feeding assemblies are used for containing frames and placing the frames into the clamping frames of the corresponding disc one by one, and the bending assembly is used for bending the fixing strips on the frames. In daily use, the above technical scheme is adopted, the pair of feeding assemblies place four frames in the clamping frames of the corresponding clamping tables in turn, the brush boxes are placed by artificial, then the fixing strips on the frames are bent by the bending assembly to complete the assembly of the brush holder, and finally the discharging assembly discharges, compared with the prior art, only the brush box feeding part is artificial, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor processing, in particular to a multi-station assembly machine for assembling a brush holder assembly and an assembling method thereof. BACKGROUND

[0002] The brush holder refers to a device for installing brushes, which ensures that the brushes have accurate positions on the commutator, thereby ensuring that the brushes and the commutator are in full and close contact, so that the contact voltage drop remains constant, and the brushes do not jump to cause sparking and commutation failure.

[0003] The brush holder includes a brush box, a frame, a pressurizing part, and carbon brushes. The bottom of the frame is provided with fixing strips, and the brush box is provided with notches corresponding to the fixing strips. During assembly, the frame needs to be assembled onto the brush box, so that each fixing strip passes through the corresponding notch, and then the fixing strips are bent to fix the frame on the brush box. Currently, this work is performed manually, which is low in production efficiency. SUMMARY

[0004] The present application aims to solve one of the technical problems in the prior art.

[0005] The present application provides a multi-station assembly machine for assembling a brush holder assembly, which includes a disc with multiple clamping tables, a pair of feeding assemblies, a pair of bending assemblies, and a discharging assembly. Each clamping table has a plurality of frame clamps for clamping frames and cooperating to bear brush boxes. The pair of feeding assemblies are used to hold frames and place them one by one into the clamping frames of the corresponding disc. The bending assembly is used to bend the fixing strips on the frame.

[0006] The feeding assembly includes a vibrating disc, a sorting device, and a transfer device. The sorting device is arranged at the discharge port of the vibrating disc and removes the frame from the discharge port. The transfer device clamps both ends of the frame and transfers it into the clamping frame.

[0007] The sorting device includes a fixed table, the top of which is slidably mounted with a sliding table through a cylinder. One end of the sliding table is provided with a receiving groove corresponding to the discharge port of the vibrating disc, and the other end is provided with a cylinder II. The piston rod of the cylinder II can extend into the receiving groove.

[0008] The transfer device and the discharging assembly each include a cross beam, a sliding frame, a lifting cylinder, a sliding actuator, and a clamping jaw. The cross beam extends radially along the disc. The sliding frame is driven by the sliding actuator and is slidably mounted on the cross beam. The lifting cylinder is mounted on the sliding frame, and the outer end of its piston rod is provided with the clamping jaw.

[0009] The sliding actuator includes a pair of pulleys rotatably mounted at both ends of the top of the cross beam. A transmission belt is mounted between the pair of pulleys. One of the pulleys is connected with a motor, and the transmission belt is fixedly connected with the sliding frame.

[0010] The clamping frame comprises a hollow frame body and a pair of side plates extending towards the center of the clamping table, and the height of the side plates is lower than that of the hollow frame body.

[0011] The pair of air cylinders III are arranged outside the bending assembly, and the outer end of the piston of each air cylinder III is fixedly provided with an insertion rod, and each insertion rod can extend into the hollow frame body at the corresponding position.

[0012] The pair of air cylinders IV are further included, and the outer end of the piston of each air cylinder IV is fixedly provided with a tray, and each tray is driven by the corresponding air cylinder IV to enter and exit the bottom of the clamping table of the corresponding bending assembly.

[0013] The bending assembly comprises a frame body, a bending cylinder is installed at the top of the frame body, the lower end of the piston of the bending cylinder is fixedly provided with a lifting plate, the bottom of the lifting plate is provided with a floating plate through elastic elements, the bottom of the floating plate is provided with a dovetail groove, a pair of sliding blocks are slidingly installed at both ends of the dovetail groove, the top end of each sliding block is provided with a triangular block, and the bottom of the lifting plate is provided with a pair of push blocks, and each push block is used to push the pair of push blocks to be close to each other when the lifting plate and the floating plate are close to each other.

[0014] Meanwhile, a kind of assembly method is disclosed, suitable for the multi-station assembly machine of the foregoing brush holder assembly assembly, comprising the following steps:

[0015] S1, the frame is transferred to the clamping frame by the feeding assembly;

[0016] S2, the disc rotates, and the clamping table with frame moves out of the feeding assembly;

[0017] S3, manually place the brush box on the clamping table with frame;

[0018] S4, the disc rotates, and the clamping table with frame and brush box moves to the corresponding position of the bending assembly;

[0019] S5, the bending assembly bends the fixed strip on each frame, fixes the frame and the brush box, and obtains the brush holder;

[0020] S6, the disc rotates, and the clamping table with brush holder moves to the corresponding position of the discharging assembly;

[0021] S7, the discharging assembly acts to discharge the brush holder.

[0022] The beneficial effects of the present application are as follows:

[0023] A pair of feeding assemblies transfer the frame to the clamping frame, then the worker places the brush box on the clamping table with all frame loading, and then the bending assembly bends the fixed strip on each frame to fix the frame on the brush box, and finally the brush box assembled is transferred and discharged by the discharging assembly, so that in the whole process, the worker only needs to add the frame to the feeding assembly and is responsible for the placement of the brush box, thereby reducing the labor intensity of the worker, improving the work efficiency and the assembly precision of the brush box. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application;

[0025] Figure 2 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0026] Figure 3 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0027] Figure 4 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0028] Figure 5 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0029] Figure 6 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0030] Figure 7 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0031] Figure 8 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly);

[0032] Figure 9 Figure 6 is a top view of a multi-station assembly machine for assembling the brush holder assembly in the embodiment of the present application (without the bending assembly).

[0033] Reference signs

[0034] 1-chuck, 2-disc, 3-feeding assembly, 31-vibrating disc, 331-discharge port, 32-sorting device, 321-fixed table, 322-cylinder one, 323-sliding table, 324-receiving groove, 325-cylinder two, 33-transfer device, 4-bending assembly, 41-frame body, 42-lifting plate, 43-elastic element, 431-spring, 432-sliding rod, 433-fixed sleeve, 44-floating plate, 45-dovetail groove, 46-sliding block, 47-triangle block, 48-push block, 5-discharging assembly, 51-cross beam, 52-sliding frame, 53-lifting cylinder, 54-sliding actuator, 541-pulley, 542-transmission belt, 55-clamping jaw, 6-clamping frame, 61-hollow frame body, 62-side plate, 7-cylinder three, 8-inserting rod, 9-cylinder four, 10-tray, 100-frame, 200-brush box, 300-fixed strip. DETAILED DESCRIPTION

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.

[0036] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and are not limited in number, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the front and rear associated objects are in an "or" relationship.

[0037] The multi-station assembly machine for assembling a brush holder assembly and the assembling method thereof provided by the embodiments of the present application will be described in detail below in combination with the drawings, through specific embodiments and application scenarios.

[0038] Embodiment 1:

[0039] As shown in the drawings, Figures 1 to 7 The embodiments of the present application provide a multi-station assembly machine for assembling a brush holder assembly, which comprises a disc 2 with a plurality of clamping tables 1, a pair of feeding assemblies 3, a pair of bending assemblies 4 and a discharging assembly 5. Each clamping table 1 is provided with a plurality of clamping frames 6 for clamping a frame 100 and a brush box 200 that cooperates with each other to bear the brush box 200. The pair of feeding assemblies 3 are used to hold the frames 100 and place the frames 100 one by one into the clamping frames 6 of the corresponding disc 2. The bending assembly 4 is used to bend the fixing bars 300 on the frame 100.

[0040] Further, the feeding assembly 3 comprises a vibrating disc 31, a sorting device 32 and a transfer device 33. The sorting device 32 is arranged at the discharge port 311 of the vibrating disc 31, and the sorting device 32 removes the frame 100 from the discharge port 311 of the vibrating disc 31. The transfer device 33 clamps both ends of the frame 100 and transfers it into the clamping frame 6.

[0041] Further, the sorting device 32 comprises a fixed table 321, the top of which is slidably provided with a sliding table 323 through a cylinder 322. One end of the sliding table 323 is provided with a receiving groove 324 corresponding to the discharge port 311 of the vibrating disc 31, and the other end is provided with a cylinder 325. The piston rod of the cylinder 325 can extend into the receiving groove 324.

[0042] In this embodiment of the present application, since the above structure is adopted,Figure 8 and 9 As shown, the brush holder assembled in this application has four frames 100 arranged radially and symmetrically in pairs. The axes of the two pairs of frames 100 are perpendicular to each other, and each feeding component 3 is only responsible for feeding one pair of frames 100.

[0043] The disc 2 is driven by a motor to rotate, causing the clamping platform 1 to move below the first feeding assembly 3. The vibratory feeder 31 inside the feeding assembly 3 operates, discharging the frame 100 from its outlet end into the receiving groove 324. Cylinder 2 325 actuates, its piston rod extending into the receiving groove 324 to press the frame 100 within. Cylinder 1 322 actuates, moving the sliding platform 323 away from the discharge port 311 of the vibratory feeder 31 and below the transfer device 33. The piston rod of cylinder 2 325 retracts. At this point, the two ends of the frame 100 are obstructed. The transfer device 33 clamps the two ends of the frame 100 and transfers it to the corresponding clamping frame 6 on the clamping platform 1. Simultaneously, cylinder 2 325 actuates, moving the sliding platform 323 closer to the discharge port 311. This process is repeated until another clamping frame 6 located on the same extension line is also loaded with a frame 100. Then, the disc 2 continues to rotate, moving another pair of clamping frames 6 without loaded frames 100 to the corresponding clamping frame 6 on the next feeding assembly 3. The aforementioned frame 100 loading operation is repeated until all four clamping frames 6 in the clamping platform 1 are loaded with frame 100. Then, the disc 2 rotates, causing the clamping platform 1 to move out of the second loading component 3. The brush box 200 is then manually placed on the clamping frames 6 of the clamping platform 1. The fixing strips 300 on each frame 100 pass through the corresponding slots on the brush box 200. The disc 2 rotates, causing the clamping platform 1 to move below the first bending component 4. The bending component 4 bends the fixing strips 300 on a pair of frames 100 located on the same straight line. Then, the disc 2 rotates, and the clamping platform 1 enters the second bending component 4. The second bending component 4 bends the fixing strips 300 on the remaining pair of frames 100, completing the interconnection between each frame 100 and the brush box 200 to form a brush holder. The disc 2 rotates, moving the brush holder below the unloading component 5, which then transfers the brush holder out of the clamping platform 1.

[0044] Example 2:

[0045] like Figures 3 to 4 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, both the transfer device 33 and the unloading assembly 5 include a crossbeam 51, a sliding frame 52, a lifting cylinder 53, a sliding actuator 54, and a gripper 55. The crossbeam 51 extends radially along the disk 2. The sliding frame 52 is driven by the sliding actuator 54 and is slidably mounted on the crossbeam 51. The lifting cylinder 53 is mounted on the sliding frame 52, and a gripper 55 is mounted on the outer end of its piston rod.

[0046] Furthermore, the sliding actuator 54 includes a pair of pulleys 541 rotatably mounted at both ends of the top of the crossbeam 51, a drive belt 542 installed between the pair of pulleys 541, one of the pulleys 541 being connected to a motor, and the drive belt 542 being fixedly connected to the sliding frame 52.

[0047] In this embodiment of the application, due to the above-described structure, when it is necessary to transfer the frame 100 or the brush box 200, the motor drives the pulley 541 to rotate, and the transmission belt 542 drives the sliding frame 52, the lifting cylinder 53 and the gripper 55 to slide on the crossbeam 51. The lifting cylinder 53 moves to raise and lower the gripper 55. After the gripper 55 clamps the frame 100 or the brush box 200, the lifting cylinder 53 controls the gripper 55 to rise. After the gripper 55 is transferred to the corresponding clamping frame 6 or the mounting table 1, the lifting cylinder 53 moves its piston rod to lower, driving the gripper 55 to lower, placing the frame 100 in the clamping frame 6 or lowering the height of the brush holder. Then the frame 100 or the brush holder is released, so that the frame 100 is transferred to the clamping frame 6 or the brush holder is unloaded.

[0048] Example 3:

[0049] like Figures 1 to 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the clamping frame 6 includes a hollow frame 61 and a pair of side plates 62 extending toward the center of the clamping table 1, the height of the side plates 62 being lower than that of the hollow frame 61.

[0050] Furthermore, it also includes a pair of cylinders 3 7 disposed on the outside of each bending assembly 4, and each cylinder 3 7 has a piston rod 8 fixedly attached to its outer end, and each rod 8 can be inserted into the hollow frame 61 at the corresponding position.

[0051] Furthermore, it also includes a pair of cylinders 4 and 9, with a tray 10 fixed to the outer end of the piston of each cylinder 4 and 9. Each tray 10 moves in and out of the bottom of the clamping table 1 of the corresponding bending assembly 4 under the drive of the corresponding cylinder 4 and 9.

[0052] In this embodiment of the application, due to the above-described structure, the frame 100 is placed between a pair of side plates 62, and the brush box 200 is mounted on the top surface of each side plate 62, with its perimeter abutting against the inner ends of each hollow frame 61. After the frames 100 and brush boxes 200 are placed, before bending, cylinders 3-7 and 4-9 are activated, the insert rod 8 is inserted into the outer hollow frame 61, and the tray 10 extends into the bottom surface of the clamping table 1 and abuts against the bottom surface of the clamping table 1 to position and fix the clamping table 1, ensuring that the fixing strips 300 on each frame 100 are in the correct position when the bending assembly 4 performs the bending action. After bending each fixing strip 300 is completed, the pistons of cylinders 3-7 and 4-9 retract, and the insert rod 8 and tray 10 move away from the clamping table 1.

[0053] Example 4:

[0054] As Figures 6 to 7 shown in the embodiment, in addition to including the structural features of the preceding embodiments, the bending assembly 4 includes a frame body 41, the frame body 41 has a bending cylinder mounted on the top, the lower end of the piston of the bending cylinder is fixedly provided with a lifting plate 42, the bottom of the lifting plate 42 is provided with a floating plate 44 through an elastic element 43, the bottom of the floating plate 44 is provided with a dovetail groove 45, a pair of sliding blocks 46 are slidingly installed at both ends of the dovetail groove 45, the top end of each sliding block 46 is provided with a triangular block 47, the bottom of the lifting plate 42 is provided with a pair of push blocks 48, and each push block 48 is used to push the pair of push blocks 48 to be close to each other when the lifting plate 42 and the floating plate 44 are close to each other.

[0055] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the piston of the bending cylinder is extended, the lifting plate 42 and the floating plate 44 are lowered, the bottom surface of the floating plate 44 first contacts the top of each corresponding hollow frame body 61, at the same time, the fixed plate on a group of frame bodies 100 enters the dovetail groove 45 and the pair of sliding blocks 46, then the lifting plate 42 continues to be lowered, the floating plate 44 is close, the elastic element 43 is compressed and shortened, each push block 48 is lowered at the same time, the pair of sliding blocks are pushed to be close to each other, a pair of fixed plates are bent, and one side of the pair of fixed plates is tightly pressed against the outer surface of the brush box 200, then the piston of the bending cylinder is retracted, the lifting plate 42 and the floating plate 44 are raised at the same time, the elastic element 43 releases the elastic potential energy to separate the lifting plate 42 and the floating plate 44, the lower end of each push block 48 is in transmission cooperation with the inclined surface of each triangular block 47 through a T-shaped groove and a T-shaped block, at this time, the push block 48 is raised relative to the sliding block, and the pair of sliding blocks are separated from each other;

[0056] The elastic element 43 is a spring 431, a sliding rod 432 and a fixed sleeve 433, the fixed sleeve 433 is fixedly connected to the lifting plate 42, the lower end of the sliding rod 432 is fixedly provided on the top surface of the floating plate 44, the upper end is provided in the fixed sleeve 433 and has a limiting ring 434, the spring 431 is sleeved outside the sliding rod 432, and the upper and lower ends are respectively abutted with the lower end of the fixed sleeve 433 and the top surface of the floating plate 44.

[0057] Embodiment 5:

[0058] In this embodiment, a method for assembling is disclosed, including the following steps:

[0059] S1, the frame body 100 is transferred to the frame clamping assembly 6 by the feeding assembly 3;

[0060] S2, the disc 2 is rotated, and the clamping table 1 with the frame body 100 moves out of the feeding assembly 3;

[0061] S3, the brush box 200 is placed on the clamping table 1 with the frame body 100 by artificial;

[0062] S4, the disc 2 is rotated, and the clamping table 1 with the frame body 100 and the brush box 200 moves to the corresponding position of the bending assembly 4;

[0063] S5, the bending assembly 4 bends the fixed strip 300 on each frame 100, fixes the frame 100 and the brush box 200, and obtains the brush holder;

[0064] S6, the disc 2 rotates, and the clamping table 1 with the brush holder moves to the position corresponding to the unloading assembly 5.

[0065] S7, the unloading assembly 5 acts to unload the brush holder.

[0066] In the embodiment of the present application, since the above method is adopted, in the whole process, the worker only needs to add the frame 100 to the feeding assembly 3 and place the brush box 200, which reduces the labor intensity of the worker, improves the work efficiency and the assembly precision of the brush box 200.

[0067] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of another identical element in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0068] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, which are all within the protection of the present application.

Claims

1. A multi-station assembly machine for assembling brush holder assemblies, characterized in that, It includes a disc with multiple clamping stations, a feeding assembly, a pair of feeding assemblies and a pair of bending assemblies. Each clamping station has several clamping frames for clamping the frames and cooperating with each other to carry the brush box. The pair of feeding assemblies are used to hold the frames and place them one by one into the clamping frames of the corresponding disc. The bending assemblies are used to bend the fixing strips on the frames. The clamping frame includes a hollow frame and a pair of side plates extending toward the center of the clamping table, the height of which is lower than that of the hollow frame. It also includes a pair of cylinders three located on the outside of each bending assembly. Each cylinder three has a piston rod fixed to its outer end, and each rod can be inserted into the hollow frame at the corresponding position. It also includes a pair of cylinders four, each cylinder four having a tray fixed to the outer end of its piston. Each tray moves in and out of the bottom of the clamping table of the corresponding bending assembly under the drive of the corresponding cylinder four. The bending assembly includes a frame, a bending cylinder is installed on the top of the frame, a lifting plate is fixed at the lower end of the piston of the bending cylinder, a floating plate is installed at the bottom of the lifting plate through an elastic element, a dovetail groove is provided at the bottom of the floating plate, a pair of sliding blocks are slidably installed at both ends of the dovetail groove, a triangular block is provided at the top of each sliding block, and a pair of push blocks are provided at the bottom of the lifting plate. Each push block is used to push the pair of push blocks closer to each other when the lifting plate and the floating plate are close together.

2. The multi-station assembly machine for brush holder assembly according to claim 1, characterized in that, The feeding assembly includes a vibratory feeder, a sorting device, and a transfer device. The sorting device is located at the discharge port of the vibratory feeder and moves the frame out of the discharge port of the vibratory feeder. The transfer device clamps both ends of the frame and transfers it to the clamping frame.

3. The multi-station assembly machine for brush holder assembly according to claim 2, characterized in that, The sorting device includes a fixed platform, and a sliding platform is slidably mounted on the top of the fixed platform via a cylinder. One end of the sliding platform is provided with a receiving groove corresponding to the discharge port of the vibrating plate, and the other end is equipped with a cylinder, the piston rod of which can extend into the receiving groove.

4. A multi-station assembly machine for brush holder assembly according to claim 2, characterized in that, The transfer device and the unloading assembly both include a crossbeam, a sliding frame, a lifting cylinder, a sliding actuator, and grippers. The crossbeam extends radially along the disc, the sliding frame is driven by the sliding actuator and is slidably mounted on the crossbeam, the lifting cylinder is mounted on the sliding frame, and grippers are installed on the outer end of the piston rod of the lifting cylinder.

5. A multi-station assembly machine for brush holder assembly according to claim 4, characterized in that, The sliding actuator includes a pair of pulleys rotatably mounted at both ends of the top of the crossbeam, a drive belt installed between the pair of pulleys, one of the pulleys being connected to a motor, and the drive belt being fixedly connected to the sliding frame.

6. An assembly method applicable to a multi-station assembly machine for assembling the brush holder assembly as described in claim 1, characterized in that, Includes the following steps: S1. The feeding assembly transfers the frame into the clamping frame; S2. The disc rotates, and the clamping table with the frame moves out of the feeding assembly; S3. Manually place the brush box on the clamping table with a frame; S4. The disc rotates, and the clamping table with the frame and brush box moves to the corresponding position of the bending component; S5. The bending component bends the fixing strips on each frame to fix the frame and the brush box, thus obtaining the brush holder; S6. The disc rotates, and the clamping table with the brush holder moves to the corresponding position of the unloading component; S7, the unloading component operates to unload the brush holder.

Images