An automatic commutator machining apparatus

Abstract

The application relates to the technical field of commutator processing equipment, in particular to a commutator automatic processing equipment which comprises a grinding machine frame, a polishing mechanism is arranged on the grinding machine frame, the polishing mechanism comprises a connecting main beam, one end of the connecting main beam is provided with a secondary beam, the lower end surface of the secondary beam and the position close to one end of the connecting main beam are provided with a connecting disc, the lower end of the connecting disc is provided with a secondary inserting rod, and the lower end surface of the secondary beam and the position close to the other end of the connecting main beam are provided with a main inserting rod. The polishing mechanism is arranged, the polishing abrasive belt is quickly installed on the abrasive belt disc, and then the abrasive belt disc is quickly installed at the lower end of the secondary beam, so that the quick and convenient installation of the polishing abrasive belt is realized, the time consumed for installing the polishing abrasive belt is saved, the efficiency of replacing the polishing abrasive belt is improved, the displacement of the abrasive belt disc is synchronized with the rotation of the processed workpiece, the polishing effect of the processed workpiece is improved, and the loss generated by driving the rotation of the processed workpiece is reduced.

Description

Technical Field

[0001] This application relates to the technical field of commutator processing equipment, specifically an automatic commutator processing device. Background Technology

[0002] A commutator, also known as a "rectifier," is a crucial component of the armature of both DC and AC commutator motors. It consists of numerous copper plates separated by mica sheets, arranged in a cylindrical or disc shape. Each copper plate is connected to several armature winding elements. As the armature rotates, the copper plates successively contact fixed brushes. In a DC motor, the brushes and commutator convert the alternating current (AC) in the armature windings into direct current (DC) between the brushes. In an AC commutator motor, the frequency of the AC current between the brushes is ensured to meet operational requirements.

[0003] During the manufacturing process of the commutator, a grinding wheel is needed to polish the outer wall of the commutator to remove burrs, ensure the smoothness of the outer wall, and guarantee the efficiency of the commutator.

[0004] Regarding the aforementioned technologies, sanding belts will wear down during the grinding process. When the sanding belt wears down, it will become smooth and lose its friction, making it impossible to continue grinding the workpiece. At this point, the old sanding belt needs to be replaced in a timely manner based on its working effect to ensure the grinding effect of the workpiece. However, replacing the sanding belt requires a lot of time to remove the fixing bolts one by one and then replace it with a new sanding belt. The long downtime will reduce the working efficiency of commutator grinding. Moreover, before and after grinding, the workpiece is constantly rotating on the fixture, which will generate unnecessary power consumption and increase the processing cost of the commutator. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this application provides an automatic commutator processing device, including a grinding machine frame. A grinding mechanism is mounted on the grinding machine frame. The grinding mechanism includes a connecting main beam, a secondary beam at one end of the connecting main beam, a connecting disc at the lower end of the secondary beam near one end of the connecting main beam, a secondary insertion rod at the lower end of the connecting disc, and a main insertion rod at the lower end of the secondary beam near the other end of the connecting main beam. A sanding belt disc is mounted on the outer side of the main insertion rod. The sanding belt disc is connected to the secondary beam via the main insertion rod and the secondary insertion rod. Abrasive sand for grinding the workpiece is sleeved on the outer side of the sanding belt disc. The machine has a base at the upper end of the frame, a first gear at the upper end of the base, a second gear meshing with the first gear at the outer side of the first gear, a screw inserted at the center of the first gear, a pressure plate at the upper end of the screw, a slide rod at the lower end of the pressure plate, a connecting seat at the upper end of the second gear, a lower clamp at the upper end of the connecting seat, the upper end of the lower clamp being inserted into the workpiece, a splicing slot at the upper end of the lower clamp, a splicing plug inserted into the splicing slot, a clamping plate at the upper end of the splicing plug, and an upper clamp at the upper end of the clamping plate.

[0006] Furthermore, the splicing plug at the lower end of the clamping plate is a polygonal plug, and the splicing slot on the lower end fixture matches the polygonal splicing plug. The splicing plug is rotatably connected to the clamping plate, and the clamping plate abuts against the workpiece being processed.

[0007] Furthermore, the sanding belt disc includes a first clamping plate. A rod insertion slot is formed on the upper surface of the first clamping plate near the sub-beam. The rod insertion slots are evenly distributed along the length of the sub-beam. The main rod is inserted into one of the insertion slots away from the main beam, and the auxiliary rod is inserted into the other insertion slots. The main rod engages with the insertion slot, and the auxiliary rod also engages with the insertion slot. A mounting hole for installing fixing bolts is formed on the upper surface of the first clamping plate near the insertion slot. A rotating roller is provided on the lower surface of the first clamping plate near the edge. The rotating roller is rotatably connected to the first clamping plate. Multiple rotating rollers are evenly distributed along the circumference of the first clamping plate. A motor is provided at the upper end of one of the rotating rollers, and the sanding belt is sleeved on the outside of the rotating roller.

[0008] Furthermore, the lower end of the rotating roller is provided with a second clamping plate, which is symmetrically distributed with respect to the first clamping plate about the rotating roller. The lower end of the second clamping plate and near the center position are provided with a stop block. The upper end of the pressure plate is provided with a sliding groove for installing the stop block, and the stop block is engaged in the sliding groove on the upper surface of the pressure plate.

[0009] Furthermore, a tensioning assembly is provided between the first clamping plate and the second clamping plate. The tensioning assembly includes two sets of tensioning torsion springs. One set of tensioning torsion springs is installed in an installation chamber opened inside the first clamping plate, and the other set of tensioning torsion springs is installed in an installation chamber opened inside the second clamping plate. One end of the tensioning torsion spring is fixedly connected to the installation chamber, and the other end of the tensioning torsion spring is provided with a connecting plate. One end of the connecting plate is provided with a push cylinder.

[0010] Furthermore, a limiting part is provided between the first clamping plate and the second clamping plate and near the connecting plate. The limiting part includes a lever, and limiting blocks are provided at both ends of the lever. The limiting blocks at both ends are symmetrically distributed about the lever. A spring sleeve is provided at one end of the limiting block that is inserted into the lever. A locking groove is opened on the lower end face of the first clamping plate and near the lever. A locking groove is also opened on the upper end face of the second clamping plate and near the lever. The limiting block is inserted into the locking groove.

[0011] The technical solution provided in this application has the following advantages compared with the known prior art:

[0012] 1. This application achieves rapid and convenient installation of the grinding belt by setting up a grinding mechanism, which allows the grinding belt to be quickly installed on the grinding belt disc and then the grinding belt disc to be quickly installed at the lower end of the sub-beam. This saves the time consumed in installing the grinding belt and improves the efficiency of replacing the grinding belt. At the same time, through the linkage between the grinding belt disc and the screw, the linkage between the screw and the first gear is used to realize the rotation of the workpiece. This makes the displacement of the grinding belt disc synchronized with the rotation of the workpiece, improving the grinding effect of the workpiece and reducing the wear caused by driving the rotation of the workpiece.

[0013] 2. This application, by setting a tensioning component, provides a pusher with a tension spring on the inner side of the sanding belt disc. The spring force of the tension spring pushes the pusher to the outer side of the sanding belt disc. After the sanding belt is installed, the pusher can abut against the inner wall of the sanding belt, which can keep the sanding belt in a taut state at all times. This reduces the possibility of the sanding belt falling off during operation, helps to improve the interaction force between the sanding belt and the workpiece, increases the contact surface between the sanding belt and the workpiece, and improves the efficiency and effect of the sanding belt in sanding the workpiece.

[0014] 3. This application sets a limiting part and sets a lever between the first clamping plate and the second clamping plate. The limiting blocks at both ends of the lever engage with the locking grooves on the first clamping plate and the second clamping plate to adjust and fix the position of the lever, thereby fixing the position of the push cylinder. This reduces the possibility of the push cylinder rotating inward during the sanding belt operation and improves the performance of the tensioning assembly. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram of the position adjustment mechanism in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the splicing plug structure in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the connection of the grinding mechanism in the embodiments of this application;

[0019] Figure 5 This is a schematic diagram of the main insertion rod in an embodiment of this application;

[0020] Figure 6 This is a schematic diagram of the structure of the abrasive belt disc in the embodiments of this application;

[0021] Figure 7 This is a schematic diagram of the structure of the rotating roller in the embodiments of this application;

[0022] Figure 8 This is a schematic diagram of the structure of the first gear in an embodiment of this application;

[0023] Figure 9 This is a schematic diagram of the tensioning component in an embodiment of this application;

[0024] Figure 10 This is a schematic diagram of the tension torsion spring in the embodiments of this application;

[0025] Figure 11 This is a schematic diagram of the card slot structure in an embodiment of this application;

[0026] Figure 12 This is a schematic diagram of the limiting part in an embodiment of this application.

[0027] In the diagram: 1. Grinding machine frame; 11. Workpiece to be machined; 12. Upper clamp; 13. Pressure plate; 14. Connecting plug; 15. Connecting seat; 16. Lower clamp; 17. Connecting slot; 18. Grinding belt; 2. Position adjustment mechanism; 21. Longitudinal slide; 22. Transverse slide; 23. Slide displacement block; 3. Grinding mechanism; 31. Connecting main beam; 32. Secondary beam; 321. Connecting disc; 322. Main insertion rod; 323. Secondary insertion rod; 33. Grinding belt disc; 331. 332. First clamping plate; 333. Second clamping plate; 334. Rotary roller; 335. Insertion rod slot; 336. Motor; 34. Base; 35. First gear; 36. Second gear; 37. Screw; 38. Pressure plate; 381. Slide groove; 39. Slide rod; 4. Tensioning assembly; 41. Push cylinder; 42. Connecting plate; 43. Tensioning torsion spring; 44. Mounting chamber; 45. Snap-fit ​​groove; 46. Limiting part; 461. Toggle rod; 462. Limiting block; 463. Spring sleeve; 47. Abutment block. Detailed Implementation

[0028] To better understand the above technical solution, the following will refer to the appendix to the instruction manual. Figure 1-12 The specific implementation methods are described in detail below for the above technical solutions.

[0029] refer to Figures 1 to 3 This application discloses an automatic commutator processing device, including a grinding machine frame 1, a workpiece 11, an upper clamp 12, a pressure plate 13, a splicing plug 14, a connecting seat 15, a lower clamp 16, a splicing slot 17, a grinding belt 18, a position adjustment mechanism 2, and a grinding mechanism 3. The position adjustment mechanism 2 is mounted on the grinding machine frame 1. The position adjustment mechanism 2 includes a longitudinal slide 21, a transverse slide 22, and a slide displacement block 23. The transverse slide 22 is fixedly mounted on the displacement block of the longitudinal slide 21, and the transverse slide 22 moves along the slide rail direction of the longitudinal slide 21. The slide displacement block 23 is mounted on the transverse slide 22 for connection with the grinding mechanism 3. The grinding mechanism 3 is mounted on the slide displacement block 23. The grinding belt 18 is mounted on the grinding mechanism 3. The lower clamp 16 is mounted on the upper end of the connecting seat 15, and the workpiece 11 is fitted onto the lower clamp 16. A splicing slot 17 is provided on the upper end of the lower clamp 16 near the center. The pressure plate 13 is rotatably mounted on the lower end of the upper clamp 12, and the splicing plug 14 is fixedly mounted on the lower end of the pressure plate 13. The lower end of the splicing plug 14 is inserted into the splicing slot 17 on the lower clamp 16. The splicing plug 14 is a polygonal plug, and the splicing slot 17 can match the splicing plug 14. By driving the connecting seat 15 to rotate the lower clamp 16, the connection between the splicing slot 17 and the splicing plug 14 drives the pressure plate 13 to rotate, thereby causing the workpiece 11 to rotate.

[0030] First, the abrasive belt 18 is installed on the grinding mechanism 3. The grinding mechanism 3 then fixes the abrasive belt 18 onto the transverse slide 22. By adjusting the position of the slide displacement block 23 on the transverse slide 22, the position of the grinding mechanism 3 is adjusted, ensuring the abrasive belt 18 can grind the workpiece 11. A transport fixture places the workpiece 11 onto the upper fixture 12 on the grinding machine frame 1. Then, the upper fixture 12 is moved downwards, allowing the splicing plug 14 to insert into the splicing slot 17 of the lower fixture 16. The clamping plate 13 abuts against the upper end of the workpiece 11, fixing it in place for easy grinding. During grinding, the longitudinal slide 21 is controlled to reciprocate vertically, driving the transverse slide 22 and the abrasive belt 18 to reciprocate, thus grinding the workpiece 11.

[0031] refer to Figure 2 , Figure 3 and Figure 4The grinding mechanism 3 includes a connecting main beam 31, a secondary beam 32, a connecting plate 321, a main insert rod 322, a secondary insert rod 323, a sanding belt disc 33, a base 34, a first gear 35, a second gear 36, a screw 37, a pressure plate 38, and a slide rod 39. The connecting main beam 31 is fixedly mounted on the slide displacement block 23 of the transverse slide 22, and is moved along the slide rail of the transverse slide 22 by the transverse slide 22. The secondary beam 32 is fixedly mounted at the end of the connecting main beam 31 away from the slide displacement block 23. The connecting plate 321 is fixedly mounted at the lower end of the secondary beam 32 and close to the connecting main beam 31. The secondary insert rods 323 are fixedly mounted at the lower end of the connecting plate 321 and are evenly distributed along the length of the secondary beam 32. The main insert rods 322 are fixedly mounted at the lower end of the secondary beam 32 and away from the connecting main beam 31. The inner sides of the main insert rod 322 and the auxiliary insert rod 323 are provided with spring clips similar to those on an umbrella handle, for engaging with the sanding belt disc 33. The sanding belt disc 33 is installed at the lower end of the connecting disc 321 and is engaged with the auxiliary beam 32 via the main insert rod 322 and the auxiliary insert rod 323. The base 34 is installed at the upper end of the grinding machine frame 1 and near the workpiece 11. The first gear 35 is rotatably installed on the upper end face of the base 34 and near the center. The second gear 36 is rotatably installed on the upper end face of the base 34 and near the first gear 35. The second gear 36 and the first gear 35 are meshed. The screw 37 is inserted into the first gear 35 and near the center, and the screw 37 is rotatably connected to the first gear 35. The first gear 35 rotates by driving the screw 37 to move vertically. When the first gear 35 rotates, the second gear 36, which is meshed with the first gear 35, rotates. The second gear 36 is fixedly connected to the connecting seat 15. When the first gear 35 rotates, the connecting seat 15 rotates synchronously. The pressure plate 38 is fixedly installed on the upper end of the screw 37. A sliding groove 381 is provided on the upper end surface of the pressure plate 38 near the center for connecting with the sanding disc 33. The sliding rod 39 is fixedly installed on the lower end surface of the pressure rod away from the screw 37. The lower end of the sliding rod 39 is inserted into the interior of the base 34 to improve the stability of the pressure plate 38 during displacement.

[0032] The sanding belt 18 is fitted onto the sanding disc 33, which is then connected to the connecting disc 321. The sanding disc 33 is fixed to the connecting disc 321 and the secondary beam 32 via the main insertion rod 322 and the auxiliary insertion rod 323. The sanding disc 33 is then reinforced with fixing bolts, thus completing the fixed installation of the sanding belt 18. The position of the transverse slide 22 is fixed by adjusting the positions of the longitudinal slide 21 and the transverse slide 22, and the longitudinal slide 21 is controlled to perform reciprocating motion in the vertical direction. The reciprocating motion of the longitudinal slide 21 achieves the reciprocating motion of the sanding disc 33 in the vertical direction. The sanding disc 33 drives the pressure plate 38 to move. The downward movement of the pressure plate 38 drives the screw 37 to move downward. When the screw 37 moves downward, the threaded groove of the screw 37 presses against the inner wall of the first gear 35, causing the first gear 35 to rotate. The second gear 36, which meshes with the first gear 35, rotates synchronously with the first gear 35. The rotation of the second gear 36 drives the upper connecting seat 15 to rotate, which in turn drives the lower clamp 16 to rotate. The lower clamp 16 connects to the splicing plug 14, enabling the lower clamp 16 to drive the pressure plate 13 to rotate, thus rotating the workpiece 11. The rotating workpiece 11 rubs against the abrasive belt 18, which polishes the outer wall of the workpiece 11.

[0033] refer to Figure 1 , Figure 2 and Figure 6 The abrasive belt disc 33 includes a first clamping plate 331, a second clamping plate 332, a rotating roller 333, a motor 335, and a tensioning assembly 4. The upper surface of the first clamping plate 331 has multiple insertion slots 334, which are evenly distributed along the length of the secondary beam 32. The insertion slots 334 are used to insert main insertion rods 322 and auxiliary insertion rods 323. Simultaneously, mounting holes for inserting fixing bolts are provided on the upper surface of the first clamping plate 331 near the insertion slots 334. The main insertion rods 322 and auxiliary insertion rods 323 are inserted into the insertion slots 334 on the first clamping plate 331 to pre-fix the first clamping plate 331, facilitating subsequent installation of fixing bolts. The rotating roller 333 is rotatably mounted on the lower end of the first clamping plate 331, and multiple rotating rollers 333 are evenly distributed along the circumference of the first clamping plate 331. A motor 335 is fixedly mounted on the upper end of one of the rollers 333 near the connecting main beam 31, driving the roller 333 to rotate. A second clamping plate 332 is mounted on the lower end of the roller 333, and the roller 333 is rotatably connected to the second clamping plate 332. The first clamping plate 331 and the second clamping plate 332 clamp the roller 333. A tensioning assembly 4 is installed between the first clamping plate 331 and the second clamping plate 332, near the edge.

[0034] The tensioning assembly 4 includes a push cylinder 41, a connecting plate 42, a tensioning torsion spring 43, a limiting part 46, and a stop block 47. An installation chamber 44 is formed inside the first clamping plate 331 near the connecting disc 321. The tensioning torsion spring 43 is fixedly installed inside the installation chamber 44, with one end of the tensioning torsion spring 43 fixedly connected to the inner wall of the installation chamber 44. The connecting plate 42 is fixedly installed at the other end of the tensioning spring, and is slidably connected to the first clamping plate 331. The connecting plate 42 rotates about the center of the tensioning torsion spring 43. The push cylinder 41 is fixedly installed at the end of the connecting plate 42 away from the tensioning spring. An installation chamber 44 is also formed inside the second clamping plate 332, and a tensioning spring is also provided inside the installation chamber 44 of the second clamping plate 332. The two connecting plates 42 are symmetrically distributed about the push cylinder 41. The limiting part 46 is installed between the first clamping plate 331 and the second clamping plate 332, near the push cylinder 41. The abutment 47 is fixedly installed on the lower end face of the second clamping plate 332 and away from the connecting plate 321. The abutment 47 is used to connect with the slide groove 381 opened on the upper end face of the pressure plate 38.

[0035] The limiting part 46 includes a lever 461, a limiting block 462, and a spring sleeve 463. The spring sleeve 463 is fixedly installed at one end of the limiting block 462. Both ends of the lever 461 have telescopic holes for inserting the limiting blocks 462. The two limiting blocks 462 are symmetrically distributed about the lever 461. One end of the limiting block 462 with the spring sleeve 463 is inserted into the inside of the lever 461. One end of the spring sleeve 463 is fixedly connected to the limiting block 462, and the other end of the spring sleeve 463 is fixedly connected to the inner wall of the telescopic hole of the lever 461. A locking groove 45 is provided at the lower end of the first clamping plate 331 near the limiting block 462. The locking groove 45 also has a limiting hole for inserting the limiting block 462. A locking groove 45 is also provided at the upper end of the second clamping plate 332 near the limiting block 462. The inner cylinder of the locking groove 45 also has a limiting hole. The limiting block 462 can slide within the locking groove 45, and the end of the limiting block 462 away from the lever 461 can be inserted into the limiting hole to achieve the limiting and fixing of the lever 461.

[0036] When installing the sanding belt 18, first move the lever 461 to the end of the locking groove 45 away from the push cylinder 41. The limiting blocks 462 at both ends of the lever 461 can extend and retract within the telescopic holes at both ends of the lever 461. During the movement of the lever 461, the lever 461 can be displaced through the sliding connection between the limiting blocks 462 and the locking groove 45. At the same time, a limiting hole for inserting the limiting blocks 462 is also provided inside the locking groove 45. The limiting blocks 462 in the fully extended state can be inserted into the limiting holes to limit and fix the position of the lever 461. When the lever 461 is at the end of the locking groove 45 away from the push cylinder 41, the connecting plates 42 at both ends of the push cylinder 41 can rotate with the opening and closing of the tension torsion spring 43. The connecting plates 42 rotate about the center of the tension torsion spring 43 as the fulcrum. When the tension spring 43 is compressed, the pusher 41 retracts into the inner side of the sanding belt reel 33. During installation of the sanding belt 18, the sanding belt 18 is fitted onto the outer side of the rotating roller 333 from the position of the pusher 41, and during installation, the sanding belt 18 presses the pusher 41 towards the inner side of the sanding belt reel 33. After the sanding belt 18 is positioned, the tension spring 43 pushes the connecting plate 42 to rotate, supporting the sanding belt 18 outward from the inner side, thus tautning the sanding belt 18 and pre-fixing it to prevent it from falling off. Then, the lever 461 is moved to a position close to the connecting plate 42, so that the side wall of the lever 461 abuts against the side wall of the connecting plate 42, fixing the position of the connecting plate 42 and preventing the connecting plate 42 and the pusher 41 from rotating towards the inner side of the sanding belt reel 33, ensuring that the sanding belt 18 is always taut. This facilitates the rotation of the rotating roller 333 driven by the motor 335 on the first clamping plate 331, and in turn, the rotating roller 333 drives the grinding belt 18 to make circumferential motion to grind the workpiece 11.

[0037] After the sanding belt 18 is installed, align the insertion slot 334 on the first clamping plate 331 with the auxiliary insertion rod 323 at the lower end of the connecting plate 321 and the main insertion rod 322 at the lower end of the sub-beam 32. Then, insert the main insertion rod 322 and the auxiliary insertion rod 323 into the insertion slot 334 on the first clamping plate 331, and use the spring clips on the main insertion rod 322 and the auxiliary insertion rod 323 to fix them to the first clamping plate 331. Then, install the fixing bolts into the mounting holes on the connecting plate 321 and the first clamping plate 331 to reinforce the sanding belt disc 33. The fixed connection of the sanding belt disc 33 on the sub-beam 32 is completed. Then, adjust the position of the abutment 47 so that it slides within the groove 381 on the pressure plate 38 along the opening direction of the groove 381. This allows the abutment 47 at the lower end of the second clamping plate 332 to be inserted into the groove 381 on the upper surface of the pressure plate 38, thereby securing the abutment 47 within the pressure plate 38. This allows the abutment 47 to drive the pressure plate 38 to move vertically.

[0038] This utility model describes the automatic processing of commutators, including the following steps:

[0039] S1. Install the sanding belt 18. Move the lever 461 to a position away from the push cylinder 41. Then, from the position of the push cylinder 41, put the sanding belt 18 on the outside of the sanding belt disc 33. Use the tension torsion spring 43 to push and push it to abut against the inner wall of the sanding belt 18. Move the lever 461 again. The lever 461 is fixed by the engagement of the limit block 462 and the locking groove 45, thereby fixing the position of the push cylinder 41 and completing the installation of the sanding belt 18.

[0040] S2. Install the sanding belt disc 33. Align the insertion groove 334 on the sanding belt disc 33 with the main insertion rod 322 and the auxiliary insertion rod 323 at the lower end of the connecting plate 321. Use the engaging connection between the main insertion rod 322, the auxiliary insertion rod 323 and the insertion groove 334 to pre-fix the sanding belt disc 33. Then, install the fixing bolts in the mounting holes on the connecting plate 321 and the first clamping plate 331 to fix the sanding belt disc 33.

[0041] S3. Positioning adjustment: Control the transverse slide 22, adjust the position of the slide displacement block 23, and then adjust the grinding belt 18 on the sanding belt disc 33 to a position that can grind the workpiece 11.

[0042] S4. Workpiece grinding: By controlling the longitudinal slide 21 to drive the transverse slide 22 to make vertical reciprocating motion, the grinding belt 18 grinds the side surface of the workpiece 11. At the same time, the abutment block 47 at the lower end of the sanding belt disc 33 drives the pressure plate 38 to move, and then the screw 37 drives the first gear 35 to rotate, and then the second gear 36 drives the connecting seat 15 to rotate, thereby driving the workpiece 11 to rotate rapidly.

[0043] The working principle of this application embodiment:

[0044] First, move the lever 461 to the end of the locking groove 45 away from the push cylinder 41, and place the sanding belt 18 onto the outside of the rotating roller 333 from the position of the push cylinder 41. Then, move the lever 461 to a position close to the connecting plate 42, and use the locking connection between the limiting block 462 and the limiting hole to fix the position of the lever 461, thereby fixing the position of the push cylinder 41 and achieving tensioning of the sanding belt 18. Then, insert the main insert rod 322 and the auxiliary insert rod 323 into the insert rod groove 334 on the first clamping plate 331 to complete the pre-fixation of the sanding belt disc 33, and then use fixing bolts to reinforce the sanding belt disc 33. Engage the abutment block 47 into the sliding groove 381 at the upper end of the pressure plate 38 to connect the sanding belt disc 33 to the pressure plate 38. Adjusting the positions of the transverse slide 22 and the sanding belt disc 33 facilitates the sanding belt 18's grinding of the workpiece 11. The workpiece 11 is fitted onto the lower clamp 16, and then held between the upper clamp 12 and the lower clamp 16 by the pressure plate 13. The motor 335 drives the rotating roller 333 to rotate the sanding belt 18, controlling the longitudinal slide 21 to drive the sanding belt disc 33 to reciprocate in the vertical direction. The reciprocating motion of the sanding belt disc 33 causes the pressure plate 38 to move. The screw 37 at the lower end of the pressure plate 38 moves synchronously with the pressure plate 38. The displacement of the screw 37 in the first gear 35 causes the first gear 35 to rotate, which in turn drives the second gear 36 meshing with it to rotate. The second gear 36 drives the lower clamp 16 to rotate, which in turn drives the pressure plate 13 to rotate, which in turn drives the workpiece 11 to rotate, causing the workpiece 11 to rub against the sanding belt 18, thus achieving the grinding of the workpiece 11.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic commutator processing device, comprising a grinding machine frame (1), characterized in that, The grinding machine frame (1) is provided with a grinding mechanism (3), which includes a connecting main beam (31). One end of the connecting main beam (31) is provided with a secondary beam (32). A connecting plate (321) is provided on the lower end face of the secondary beam (32) near one end of the connecting main beam (31). A secondary insert rod (323) is provided at the lower end of the connecting plate (321). A main insert rod (322) is provided on the lower end face of the secondary beam (32) near the other end of the connecting main beam (31). An abrasive belt disc (33) is provided on the outer side of the main insert rod (322). The abrasive belt disc (33) is connected to the secondary beam (32) through the main insert rod (322) and the secondary insert rod (323). A grinding abrasive belt (18) for grinding the workpiece (11) is sleeved on the outer side of the abrasive belt disc (33). A base (34) is provided at the upper end of the frame. 4) The upper end is provided with a first gear (35), and the outer side of the first gear (35) is provided with a second gear (36) that meshes with the first gear (35). A screw (37) is inserted into the center of the first gear (35). A pressure plate (38) is provided at the upper end of the screw (37). A slide rod (39) is provided at the lower end of the pressure plate (38). A connecting seat (15) is provided at the upper end of the second gear (36). A lower end clamp (16) is provided at the upper end of the connecting seat (15). The upper end of the lower end clamp (16) is inserted into the workpiece (11). A splicing slot (17) is opened at the upper end of the lower end clamp (16). A splicing plug (14) is inserted into the splicing slot (17). A pressing plate (13) is provided at the upper end of the splicing plug (14). An upper end clamp (12) is provided at the upper end of the pressing plate (13).

2. The commutator automatic processing equipment according to claim 1, characterized in that, The splicing plug (14) at the lower end of the clamping plate (13) is set as a polygonal plug. The splicing slot (17) on the lower end clamp (16) matches the polygonal splicing plug (14). The splicing plug (14) is rotatably connected to the clamping plate (13). The clamping plate (13) abuts against the workpiece (11).

3. The commutator automatic processing equipment according to claim 2, characterized in that, The abrasive belt disc (33) includes a first clamping plate (331). A rod insertion slot (334) is provided on the upper surface of the first clamping plate (331) near the sub-beam (32). The rod insertion slots (334) are evenly distributed along the length of the sub-beam (32). The main rod (322) is inserted into one of the insertion slots away from the main beam (31), and the secondary rods (323) are inserted into the other insertion slots. The main rod (322) engages with the insertion slot, and the secondary rods (323) also engage with the insertion slot. The first clamping plate (331) has an installation hole for installing fixing bolts on its upper end face near the insertion slot. The first clamping plate (331) has a rotating roller (333) on its lower end face near the edge. The rotating roller (333) is rotatably connected to the first clamping plate (331). Multiple rotating rollers (333) are evenly distributed along the circumference of the first clamping plate (331). One of the rotating rollers (333) has a motor (335) at its upper end. The abrasive belt (18) is sleeved on the outside of the rotating roller (333).

4. The automatic commutator processing equipment according to claim 3, characterized in that, The lower end of the roller (333) is provided with a second clamping plate (332). The second clamping plate (332) and the first clamping plate (331) are symmetrically distributed about the roller (333). The lower end of the second clamping plate (332) and near the center position are provided with a stop block (47). The upper end of the pressure plate (38) is provided with a groove (381) for installing the stop block (47). The stop block (47) is engaged in the groove (381) on the upper surface of the pressure plate (38).

5. The automatic commutator processing equipment according to claim 4, characterized in that, A tensioning assembly (4) is provided between the first clamping plate (331) and the second clamping plate (332). The tensioning assembly (4) includes two sets of tensioning torsion springs (43). One set of tensioning torsion springs (43) is installed in the installation chamber (44) opened inside the first clamping plate (331), and the other set of tensioning torsion springs (43) is installed in the installation chamber (44) opened inside the second clamping plate (332). One end of the tensioning torsion spring (43) is fixedly connected to the installation chamber (44), and the other end of the tensioning torsion spring (43) is provided with a connecting plate (42). One end of the connecting plate (42) is provided with a pusher (41).

6. The automatic commutator processing equipment according to claim 5, characterized in that, A limiting part (46) is provided between the first clamping plate (331) and the second clamping plate (332) and near the connecting plate (42). The limiting part (46) includes a lever (461). The lever (461) has limiting blocks (462) at both ends. The limiting blocks (462) at both ends are symmetrically distributed about the lever (461). The end of the limiting block (462) inserted into the lever (461) is provided with a spring sleeve (463). The lower end face of the first clamping plate (331) and near the lever (461) is provided with a snap-fit ​​groove (45). The upper end face of the second clamping plate (332) and near the lever (461) is also provided with a snap-fit ​​groove (45). The limiting block (462) is inserted into the snap-fit ​​groove (45).

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