Processing Method and Equipment for Commutator Bush

Abstract

The present invention provides a processing device for a commutator bushing, comprising a frame; a reaming and grinding mechanism, including a positioning seat slidably arranged on the frame, a positioning block arranged at the top of the positioning seat, a grinding member and a milling hole member respectively arranged on both sides of the frame, and the grinding member and the milling hole member are respectively driven by an external stroke mechanism; an automatic loading and unloading mechanism, including a loading seat arranged on the frame and vertically arranged with the lowest end of the slide rail, a loading channel for the bushing to slide is opened at the top of the loading seat, a receiving seat arranged at the outlet of the loading channel, and a pushing member arranged at the end of the loading seat. When the positioning seat slides to the lowest position of the slide rail, the first arc surface, the third arc surface and the pushing member are coaxially arranged. The pushing member pushes the bushing falling into the third arc surface to move into the first arc surface and pushes out the bushing in the first arc surface to complete the automatic loading and unloading process. By arranging the automatic loading and unloading mechanism, the present invention can realize the automatic loading and unloading of the bushing, save labor and improve the automation degree of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of the processing of commutator bushings, and specifically relates to a processing method and equipment for commutator bushings. Background Art

[0002] A commutator is a component on a DC motor or an AC series-wound motor for current commutation to enable the motor to continue rotating, commonly known as a commutation device.

[0003] As disclosed in a Chinese invention patent (Publication No.: CN114289790A), a reaming device and method for the inner hole of a commutator bushing include a base, a clamp seat arranged at the upper left end of the base for clamping the commutator, a reaming machine located directly above the clamp seat, a moving mechanism for driving the reaming machine to move up and down, and a workbench arranged at the upper right end of the base. An L-shaped feeding plate is slidably arranged on the top of the workbench for moving the commutator in the feeding cylinder above the clamp seat. An unloading assembly is slidably arranged up and down on the top of the L-shaped feeding plate for guiding the commutator on the L-shaped feeding plate into the clamp seat. The sliding of the L-shaped feeding plate and the unloading assembly are both driven by a driving mechanism. This device drives the driving mechanism to work by the up and down movement of the reaming machine, so as to automatically and continuously transfer the commutator in the feeding cylinder to the clamp seat through the L-shaped feeding plate and the unloading assembly, facilitating the reaming machine to ream the commutator, thus greatly improving the reaming efficiency of the commutator.

[0004] However, in the actual application process, the following deficiencies still exist in this device:

[0005] Although this device can realize the automatic feeding of the bushing, after the reaming process, it is not convenient to complete the unloading of the bushing, and manual unloading is still required, resulting in low work efficiency. Summary of the Invention

[0006] In view of the above-mentioned drawbacks of the prior art, the present invention provides a processing method and equipment for commutator bushings, which can effectively solve the problem that it is inconvenient to complete the automatic loading and unloading of bushings during the processing of commutator bushings in the prior art.

[0007] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0008] The present invention provides a processing device for a commutator bushing, comprising a frame; a hole expanding and grinding mechanism, including a positioning seat slidably arranged on the frame, a positioning block is arranged on the top of the positioning seat, the positioning block is installed on the frame through a first electric telescopic rod, a first arc surface is arranged on the top of the positioning seat, limiting members that can retract into the positioning seat are movably arranged on both sides of the first arc surface, a second arc surface is arranged at the bottom of the positioning block, the bushing is clamped between the first arc surface and the second arc surface, the hole expanding and grinding mechanism further includes a grinding member and a hole milling member respectively arranged on both sides of the frame, and the grinding member and the hole milling member are respectively driven by an external stroke mechanism; a track assembly, including a slide rail arranged on the frame for the positioning seat to slide, and fixed strips arranged on both sides of the slide rail, the top of the fixed strip is provided with step surfaces that decrease in sequence, and the connection points of the step surfaces are set as smooth arc surfaces, the fixed strip is located below the limiting member, and the limiting member abuts against the step surface, when the positioning seat slides to the lowest position of the fixed strip, the limiting member retracts into the positioning seat; an automatic loading and unloading mechanism, including a second electric telescopic rod arranged at the end of the frame, the output end of the second electric telescopic rod is fixed to one side of the positioning seat, and further includes a loading seat arranged on the frame and vertically arranged with the lowest end of the fixed strip, a loading channel for the bushing to slide down is opened at the top of the loading seat, a receiving seat is arranged at the outlet of the loading channel, a third arc surface is opened at the top of the receiving seat, a pushing member is arranged at the end of the loading seat, when the positioning seat slides to the lowest position of the fixed strip, the first arc surface, the third arc surface and the pushing member are coaxially arranged, the pushing member pushes the bushing falling into the third arc surface to move into the first arc surface, and pushes out the bushing in the first arc surface to complete the automatic loading and unloading process.

[0009] Further, the limiting member includes a pair of first limiting blocks inserted into the positioning seat, the positioning seat has an inner cavity, the limiting member further includes a connecting rod elastically arranged in the inner cavity, the top end of the connecting rod is hinged to the first limiting block, the bottom of the connecting block is inserted and connected with the positioning seat and its end abuts against the step surface on the fixed strip, a guide rod is arranged in the inner cavity, a guide block inserted and connected with the guide rod is arranged on one side of the connecting rod, and a first spring is clamped between the guide block and the inner wall of the inner cavity.

[0010] Further, second limiting blocks opposite to the first limiting blocks are fixedly arranged at both ends of the second arc surface, the first arc surface and the second arc surface are butted to form a circular clamping port, and the inner sides of the first limiting block and the second limiting block are set as arc surfaces concentric with the circular clamping port.

[0011] Further, the loading channel includes a first slideway inclinedly arranged at the top of the loading seat, and a second slideway inclinedly arranged at the end of the loading seat, the first slideway and the second slideway are vertically arranged and communicated, and the inclination angle of the first slideway is smaller than that of the second slideway.

[0012] Further, the pusher includes a third electric telescopic rod, a push rod is arranged at the end of the third electric telescopic rod, a push cylinder is arranged at the end of the push rod, the push cylinder is coaxially arranged with the third arc surface, and the push cylinder is used to block the outlet of the second slideway during the process of pushing the bushing to move.

[0013] Further, it further includes a positioning component. The positioning component includes a jacking block movably arranged at the end of the first arc surface and opposite to the first limiting block. A piston pipeline is arranged in the inner cavity. The bottom of the positioning block extends into the inner cavity and is slidably connected with the piston pipeline through a piston piece. A horizontal piston rod is arranged at the bottom of the piston pipeline. The outer end of the piston rod is inserted and connected with a positioning seat. A vertical rod is arranged at one end of the push rod adjacent to the third electric telescopic rod. A telescopic sleeve is horizontally arranged at the bottom end of the vertical rod. A slide rod is horizontally arranged at the bottom of the receiving seat. The two ends of the slide rod are respectively inserted and connected with the receiving seat. The telescopic sleeve, the piston rod and the slide rod are linearly arranged. When the pushed part of the bushing located in the first arc surface exceeds half of its own length, the telescopic sleeve squeezes the slide rod and the piston rod, so that the positioning block extends out of the first arc surface.

[0014] Further, a second spring is clamped between the end of the piston rod and the bottom of the piston pipeline. A slide cavity is arranged at the bottom of the receiving seat. A third spring is clamped between the end of the receiving seat and the slide cavity. Pressing blocks are arranged at the outer end of the telescopic sleeve, both ends of the slide rod and the outer end of the piston rod. A fourth spring is clamped between the vertical rod and the pressing block at the end of the telescopic sleeve.

[0015] The present invention also provides a processing method for a commutator bushing, including:

[0016] S1. Uniformly fill the feeding channel on the feeding seat with bushings, and place one bushing in the receiving seat;

[0017] S2. Push the positioning seat to the receiving seat through the second electric telescopic rod, and make the first arc surface, the third arc surface and the pusher coaxial;

[0018] S3. Push the bushing to be processed into the positioning seat through the third electric telescopic rod, and the third electric telescopic rod resets, and a bushing to be processed falls into the receiving seat again;

[0019] S4. The second electric telescopic rod resets, the positioning seat drives the bushing to be processed back to the initial position, the first electric telescopic rod drives the positioning block to fix the bushing, the milling hole part first grinds the bushing, and the grinding part processes the bushing;

[0020] S5. Repeat the above steps S2-S4.

[0021] The present invention has the following beneficial effects:

[0022] The technical solution provided by the present invention has the following beneficial effects compared with the known public technologies:

[0023] Through the automatic loading and unloading mechanism provided by the present invention, the pusher pushes the bushing to be processed, and the bushing to be processed can extrude the processed bushing out of the positioning seat and ensure that the bushing to be processed is located within the positioning seat for subsequent processing. Through the cooperation of the above structures, automatic loading and unloading of the bushing can be achieved, labor can be saved, and the automation degree of the device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the overall structure of another perspective of the present invention;

[0027] Figure 3 is a schematic diagram of the internal structure of the positioning seat and the receiving seat of the present invention;

[0028] Figure 4 is a state diagram of fixing when processing the bushing of the present invention;

[0029] Figure 5 is a schematic diagram of the structure of the loading seat of the present invention;

[0030] Figure 6 is a schematic diagram of the structure of the track assembly of the present invention;

[0031] Figure 7 is a state flow chart of completing one-time loading and unloading of the bushing of the present invention.

[0032] Reference numerals:

[0033] 1, frame; 2, positioning seat; 3, positioning block; 4, first electric telescopic rod; 5, first arc surface; 6, second arc surface; 7, grinding member; 8, hole milling member; 9, slide rail; 10, fixing strip; 11, second electric telescopic rod; 12, loading seat; 13, receiving seat; 14, third arc surface; 15, first limit block; 16, connecting rod; 17, guide rod; 18, guide block; 19, first spring; 20, second limit block; 21, first slideway; 22, second slideway; 23, third electric telescopic rod; 24, push rod; 25, push cylinder

[0034] 26. Jacking block; 27. Piston pipe; 28. Piston rod; 29. Vertical rod; 30. Telescopic sleeve; 31. Slide bar; 32. Second spring; 33. Third spring; 34. Pressing block; 35. Fourth spring. Detailed implementation manner

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] Embodiment: Refer to the attached Figure 1 to the attached Figure 2 As shown in the figures, the processing equipment for the commutator bushing includes a frame 1; a reaming and grinding mechanism arranged on the frame 1. The reaming and grinding mechanism includes a positioning seat 2 slidably arranged on the frame 1. A positioning block 3 is arranged on the top of the positioning seat 2. The positioning block 3 is installed on the frame 1 through a first electric telescopic rod 4. A first arc surface 5 is arranged on the top of the positioning seat 2. Limiting members that can retract into the positioning seat 2 are movably arranged on both sides of the first arc surface 5. A second arc surface 6 is arranged at the bottom of the positioning block 3. The bushing is clamped between the first arc surface 5 and the second arc surface 6. The reaming and grinding mechanism further includes a grinding member 7 and a milling hole member 8 respectively arranged on both sides of the frame 1. The grinding member 7 and the milling hole member 8 are respectively driven by an external stroke mechanism (this is a mature existing technology and will not be elaborated). By driving the positioning block 3 to press down through the first electric telescopic rod 4, the bushing to be processed fixed on the positioning seat 2 can be stably fixed, which is convenient for the milling hole member 8 to first process the inner hole of the bushing. After the processing is completed, the grinding member 7 can grind the burrs generated during the processing, avoiding the subsequent process of re-fixing the bushing for grinding, enabling the milling and grinding to be connected and completed, and improving the processing fluency.

[0037] Refer to the attached Figure 1 , the attached Figure 2 and the attached Figure 6As shown in the figure, the track assembly includes a slide rail 9 provided on the rack 1 for the positioning seat 2 to slide, and fixed bars 10 provided on both sides of the slide rail 9. The top of the fixed bars 10 is provided with stepped surfaces that decrease in sequence, and the connection points of the stepped surfaces are set as smooth arc surfaces. The fixed bars 10 are located below the limiting member, and the limiting member abuts against the stepped surfaces. When the positioning seat 2 slides to the lowest position of the fixed bars 10, the limiting member retracts into the positioning seat 2, so that the height of the limiting member protruding from the first arc surface 5 changes synchronously with the height of the fixed bars 10, which facilitates the pushing out of the processed bushing when the limiting member retracts into the positioning seat 2. During processing, the limiting member protrudes from the first arc surface 5, which can limit both ends of the bushing and improve the stability of the bushing in the horizontal direction.

[0038] Refer to the attached Figure 1 , the attached Figure 2 and the attached Figure 3 As shown in the figure, the automatic loading and unloading mechanism includes a second electric telescopic rod 11 provided at the end of the rack 1. The output end of the second electric telescopic rod 11 is fixed to one side of the positioning seat 2. It also includes a loading seat 12 provided on the rack 1 and arranged vertically with the lowest end of the fixed bar 9. The top of the loading seat 12 is provided with a loading channel for the bushing to slide down. A receiving seat 13 is provided at the outlet of the loading channel. The top of the receiving seat 13 is provided with a third arc surface 14. A pushing member is provided at the end of the loading seat 12. When the positioning seat 2 slides to the lowest position of the fixed bars 10, the first arc surface 5, the third arc surface 14 and the pushing member are arranged coaxially. The pushing member pushes the bushing falling into the third arc surface 14 to move into the first arc surface 5 and pushes out the bushing in the first arc surface 5 to complete the automatic loading and unloading process. By pushing the bushing to be processed with the pushing member, the processed bushing can be extruded from the positioning seat 2, and it is ensured that the bushing to be processed is located in the positioning seat 2 for subsequent processing. Through the cooperation of the above structures, the automatic loading and unloading of the bushing can be realized, labor can be saved, and the automation degree of the device can be improved.

[0039] Refer to the attached Figure 3 As shown in the figure, the limiting member includes a pair of first limiting blocks 15 inserted through the positioning seat 2. The positioning seat 2 has an inner cavity. The limiting member also includes a connecting rod 16 elastically arranged in the inner cavity. The top end of the connecting rod 16 is hinged to the first limiting block 15. The bottom end of the connecting rod 16 is inserted and connected with the positioning seat 2 and its end abuts against the stepped surface of the fixed bar 10. A guide rod 17 is arranged in the inner cavity. A guide block 18 inserted and connected with the guide rod 17 is arranged on one side of the connecting rod 16. A first spring 19 is clamped between the guide block 18 and the inner wall of the inner cavity. The bottom end of the connecting rod 16 moves up or down corresponding to the height of the fixed bar 10, and thus can drive the first limiting block 15 to protrude or retract into the inner cavity synchronously. The first spring 19 can apply an elastic force to the connecting rod 16 to ensure the smooth up and down movement of the connecting rod 16.

[0040] Refer to the attachedFigure 4 As shown, at both ends of the second arc surface 6, second limit blocks 20 opposite to the first limit blocks 15 are fixedly arranged. The first arc surface 5 and the second arc surface 6 are butted to form a circular clamping opening. The inner sides of the first limit blocks 15 and the second limit blocks 20 are arranged as arc surfaces concentric with the circular clamping opening, which further improves the stability of the bushing to be processed and facilitates the reaming of the inner hole of the bushing, reducing the influence of the first limit blocks 15 and the second limit blocks 20 on the diameter of the reaming.

[0041] Refer to the appendix Figure 5 As shown, the feeding channel includes a first slideway 21 obliquely arranged at the top of the feeding base 12 and a second slideway 22 obliquely arranged at the end of the feeding base 12. The first slideway 21 and the second slideway 22 are vertically arranged and communicated, and the inclination angle of the first slideway 21 is smaller than that of the second slideway 22. The outer end of the feeding channel is communicated with an external feeding device (such as a screw feeding device). The bushings arranged linearly in the first slideway 21 can slide down to the second slideway 22 under the action of their own gravity, and the complete sets falling into the second slideway 22 can automatically fall into the receiving base 13 to complete the preliminary feeding.

[0042] Refer to the appendix Figure 1 to the appendix Figure 2 As shown, the pushing member includes a third electric telescopic rod 23. At the end of the third electric telescopic rod, a push rod 24 is arranged. At the end of the push rod 24, a push cylinder 25 is arranged. The push cylinder 25 is coaxially arranged with the third arc surface 14. The push cylinder 25 is used to block the outlet of the second slideway 22 during the process of pushing the bushing to move, avoiding the bushing falling into the feeding seat during the first feeding process through the push cylinder 25, which affects the next feeding. When the push cylinder 25 returns to the initial position, the push cylinder 25 is separated from the outlet of the second slideway 22, and the bushing can automatically fall into the feeding seat, facilitating the next feeding.

[0043] As in the appendix Figure 3As shown in the figure, it further includes a positioning component. The positioning component includes a jacking block 26 movably arranged at the end of the first arc surface 5 and opposite to the first limiting block 15. A piston pipe 27 is arranged in the inner cavity. The bottom of the jacking block 26 extends into the inner cavity and is slidably connected to the piston pipe 27 through a piston member. A horizontal piston rod 28 is arranged at the bottom of the piston pipe 27. The outer end of the piston rod 28 is inserted and connected to the positioning seat 2. One end of the push rod 24 adjacent to the third electric telescopic rod 23 is provided with a vertical rod 29. A telescopic sleeve 30 is horizontally arranged at the bottom end of the vertical rod 29. A slide rod 31 is horizontally arranged at the bottom of the material receiving seat 13. Both ends of the slide rod 31 are inserted and connected to the material receiving seat 13 respectively. The telescopic sleeve 30, the piston rod 28 and the slide rod 31 are linearly arranged. When the part of the bushing pushed out within the first arc surface 5 exceeds half of its own length, the telescopic sleeve 30 squeezes the slide rod 31 and the piston rod 28, so that the positioning block 3 extends out of the first arc surface 5. A second spring 32 is clamped between the end of the piston rod 28 and the bottom of the piston pipe 27. A sliding cavity is arranged at the bottom of the material receiving seat 13. A third spring 33 is clamped between the end of the material receiving seat 13 and the sliding cavity. Pressure blocks 34 are arranged at the outer ends of the telescopic sleeve 30, both ends of the slide rod 31 and the outer end of the piston rod 28. A fourth spring 35 is clamped between the vertical rod 29 and the pressure block 34 at the end of the telescopic sleeve 30.

[0044] Next, the feeding and discharging processes of the bushing will be specifically introduced. In the attached Figure 7 figure, the processed bushing is represented by A1, and the bushing to be processed is represented by A2; Figure 7

[0045] Specifically, when the positioning seat 2 is pushed to the material receiving seat 13, the processed bushing A1, the bushing A2 to be processed and the pushing cylinder 25 are coaxially opposite. During the process of driving the push rod 24 and the pushing cylinder 25 to move, the pushing cylinder 25 contacts the bushing A2 to be processed and the processed bushing A1. At this time, the telescopic sleeve 30 does not contact the slide rod 31. When the pushing cylinder 25 continues to move until the telescopic sleeve 30 contacts the slide rod 31, at this time, the length of the processed bushing A1 pushed out of the positioning seat 2 is greater than half, so that the processed bushing A1 can fall. The pushing cylinder 25 continues to move. At this time, the telescopic sleeve 30 and the slide rod 31 jointly squeeze the piston rod 28, so that the jacking block 26 moves upward and extends out of the first arc surface 5. Here, the jacking block 26 can push open the processed bushing A1 that has not fallen, and the jacking block 26 can play a role in positioning the bushing A2 to be processed, which is convenient for the first limiting block 15 and the second limiting block 20 to engage with the bushing A2 to be processed. When the bushing A2 to be processed is pushed by the pushing cylinder 25 to contact the jacking block 26, the telescopic sleeve 30 will be squeezed to ensure the continuous movement of the pushing cylinder 25. Thus, the feeding and discharging processes are completed. Through the cooperation of the above structures, the accuracy of feeding can be guaranteed, and it is convenient to process the bushing A2 to be processed. ​

[0046] It also includes a processing method for a commutator bushing:

[0047] S1. Uniformly fill the feeding channels on the feeding seat 12 with bushings, and place one bushing in the receiving seat 13;

[0048] S2. Push the positioning seat 2 to the receiving seat 13 through the second electric telescopic rod 11, and make the first arc surface 5, the third arc surface 14 and the pushing member coaxial;

[0049] S3. Push the bushing to be processed into the positioning seat 2 through the third electric telescopic rod 23, and the third electric telescopic rod 23 resets, and the bushing to be processed falls into the receiving seat 13 again;

[0050] S4. The second electric telescopic rod 11 resets, the positioning seat 2 drives the bushing to be processed back to the initial position, the first electric telescopic rod 4 drives the positioning block 3 to fix the bushing, the hole milling member 8 first grinds the bushing, and the grinding member 7 processes the bushing;

[0051] S5. Repeat the above steps S2 - S4.

[0052] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0053] The above - disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. Processing equipment for a commutator bushing, characterized in that, Comprising: A frame (1); A hole expanding and grinding mechanism, including a positioning seat (2) slidably arranged on the frame (1). A positioning block (3) is arranged on the top of the positioning seat (2). The positioning block (3) is installed on the frame (1) through a first electric telescopic rod (4). A first arc surface (5) is arranged on the top of the positioning seat (2). On both sides of the first arc surface (5), limiting members that can retract into the positioning seat (2) are movably arranged. A second arc surface (6) is arranged at the bottom of the positioning block (3). The bushing is clamped between the first arc surface (5) and the second arc surface (6). The hole expanding and grinding mechanism further includes a grinding member (7) and a hole milling member (8) respectively arranged on both sides of the frame (1). The grinding member (7) and the hole milling member (8) are respectively driven by an external stroke mechanism; A track assembly, including a slide rail (9) arranged on the frame (1) for the positioning seat (2) to slide, and fixing bars (10) arranged on both sides of the slide rail (9). The top of the fixing bars (10) is provided with stepped surfaces that decrease in sequence, and the connection parts of the stepped surfaces are set as smooth arc surfaces. The fixing bars (10) are located below the limiting members, and the limiting members are in contact with the stepped surfaces. When the positioning seat (2) slides to the lowest part of the fixing bars (10), the limiting members retract into the positioning seat (2); An automatic loading and unloading mechanism, including a second electric telescopic rod (11) arranged at the end of the frame (1). The output end of the second electric telescopic rod (11) is fixed to one side of the positioning seat (2). It also includes a loading seat (12) arranged on the frame (1) and vertically arranged with the lowest end of the fixing bars (10). A loading channel for the bushing to slide down is opened at the top of the loading seat (12). A receiving seat (13) is arranged at the outlet of the loading channel. A third arc surface (14) is opened at the top of the receiving seat (13). A pushing member is arranged at the end of the loading seat (12). When the positioning seat (2) slides to the lowest part of the fixing bars (10), the first arc surface (5), the third arc surface (14) and the pushing member are coaxial. The pushing member pushes the bushing falling into the third arc surface (14) to move into the first arc surface (5) and pushes out the bushing in the first arc surface (5) to complete the automatic loading and unloading process.

2. The processing equipment for the commutator bushing according to claim 1, wherein The limiting member includes a pair of first limiting blocks (15) inserted through the positioning seat (2). The positioning seat (2) has an inner cavity. The limiting member further includes a connecting rod (16) elastically arranged in the inner cavity. The top end of the connecting rod (16) is hinged to the first limiting block (15). The bottom of the connecting rod (16) is inserted and connected with the positioning seat (2) and its end abuts against the stepped surface of the fixing bar (10). A guide rod (17) is arranged in the inner cavity. A guide block (18) inserted and connected with the guide rod (17) is arranged on one side of the connecting rod (16). A first spring (19) is clamped between the guide block (18) and the inner wall of the inner cavity.

3. The processing equipment for the commutator bushing according to claim 2, wherein Both ends of the second arc surface (6) are fixedly provided with second limit blocks (20) opposite to the first limit blocks (15). The first arc surface (5) and the second arc surface (6) are butted to form a circular clamping port. The inner sides of the first limit blocks (15) and the second limit blocks (20) are arc surfaces concentric with the circular clamping port.

4. The processing equipment for the commutator bushing according to claim 3, characterized in that, The feeding channel includes a first slideway (21) inclined at the top of the feeding seat (12), and a second slideway (22) inclined at the end of the feeding seat (12). The first slideway (21) and the second slideway (22) are vertically arranged and communicated, and the inclination angle of the first slideway (21) is smaller than that of the second slideway (22).

5. The processing equipment for the commutator bushing according to claim 4, characterized in that, The pushing member includes a third electric telescopic rod (23). A push rod (24) is arranged at the end of the third electric telescopic rod (23). A push cylinder (25) is arranged at the end of the push rod (24). The push cylinder (25) is coaxially arranged with the third arc surface (14). The push cylinder (25) is used to block the outlet of the second slideway (22) during the process of pushing the bushing to move.

6. The processing equipment for the commutator bushing according to claim 5, characterized in that, It further includes a positioning assembly. The positioning assembly includes a jacking block (26) movably arranged at the end of the first arc surface (5) and opposite to the first limit block (15). A piston pipeline (27) is arranged in the inner cavity. The bottom of the jacking block (26) extends into the inner cavity and is slidably connected with the piston pipeline (27) through a piston member. A horizontal piston rod (28) is arranged at the bottom of the piston pipeline (27). The outer end of the piston rod (28) is inserted and connected with the positioning seat (2). A vertical rod (29) is arranged at the end of the push rod (24) adjacent to the third electric telescopic rod (23). A telescopic sleeve (30) is horizontally arranged at the bottom end of the vertical rod (29). A slide rod (31) is horizontally arranged at the bottom of the receiving seat (13). The two ends of the slide rod (31) are respectively inserted and connected with the receiving seat (13). The telescopic sleeve (30), the piston rod (28) and the slide rod (31) are linearly arranged. When the part of the bushing pushed out within the first arc surface (5) exceeds half of its own length, the telescopic sleeve (30) squeezes the slide rod (31) and the piston rod (28), so that the jacking block (26) extends out of the first arc surface (5).

7. The processing equipment for the commutator bushing according to claim 6, characterized in that, A second spring (32) is clamped between the end of the piston rod (28) and the bottom of the piston pipeline (27). A slide cavity is arranged at the bottom of the receiving seat (13). A third spring (33) is clamped between the end of the receiving seat (13) and the slide cavity. Pressure blocks (34) are arranged at the outer ends of the telescopic sleeve (30), the two ends of the slide rod and the outer end of the piston rod. A fourth spring (35) is clamped between the pressure block (34) at the end of the vertical rod (29) and the telescopic sleeve (30).

8. A processing method for a commutator bushing, applied to the processing equipment described in any one of claims 5-7, characterized in that, Including: S1. Uniformly fill the feeding channel on the feeding seat (12) with bushings, and place one bushing in the receiving seat (13); S2. Push the positioning seat (2) to the receiving seat (13) through the second electric telescopic rod (11), and make the first arc surface (5), the third arc surface (14) and the pushing member coaxial. S3. Push the bushing to be processed into the positioning seat (2) through the third electric telescopic rod (23), and then the third electric telescopic rod (23) resets, and the bushing to be processed falls back into the material receiving seat (13); S4. The second electric telescopic rod (11) resets, the positioning seat (2) drives the bushing to be processed back to the initial position, the first electric telescopic rod (4) drives the positioning block (3) to fix the bushing, the milling hole part (8) first grinds the bushing, and the grinding part (7) then processes the bushing; S5. Repeat the above steps S2 - S4.

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