Commutator grooving machine

Abstract

The utility model relates to the technical field of motor production, and discloses a commutator grooving machine, which comprises a clamping indexing assembly arranged on a rack, and the clamping indexing assembly is used for clamping a commutator and driving the commutator to rotate; and the power head assembly is installed on the rack and provided with a milling power head, the milling power head is used for installing a lower nicking tool, recognizing a lower grooving light reflection area of the commutator through a laser sensor and transmitting recognition data to the control system, and the control system controls the milling power head and the clamping indexing assembly to work and conduct grooving on the commutator. According to the equipment, the clamping indexing assembly and the moving assembly are combined with the laser sensor, the grooving position is automatically found, the lower grooving machining between the direct-current torque motor armature commutator segments can be rapidly, efficiently and uniformly completed, and the equipment is suitable for automatic and batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to a commutator grooving machine. Background Technique

[0002] The commutator is a key component of a permanent magnet DC torque motor. Generally, it is cylindrical, and the circumferential surface is covered with cylindrical commutator segments. The materials of the commutator segments usually include several types such as red copper, silver copper, and silver nickel copper alloy. And strip-shaped grooves are provided on the commutator segments to make the structure of the commutator segments more firm.

[0003] The traditional processing method for under-grooving between the armature commutator segments of a DC torque motor usually uses the rotation and indexing of the lathe spindle, and the tool moves axially for processing techniques such as profiling and milling. The traditional processing method has the problem that the position of the under-grooving mainly depends on the operator's naked eye search, which easily leads to the under-grooving not being located exactly in the middle between adjacent commutator segments, and the efficiency is low and not suitable for mass production. Content of the Utility Model

[0004] The purpose of the utility model is to provide a commutator grooving machine to solve the problems in the above background technique that the position of the under-grooving is searched manually, which easily leads to the under-grooving not being located exactly in the middle between adjacent two commutator segments and the production efficiency is low.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A commutator grooving machine, comprising:

[0007] A frame;

[0008] A clamping and indexing assembly, the clamping and indexing assembly includes a box body, a transmission shaft, an indexing driving member, and a first chuck for clamping the commutator; the box body is installed on the frame, the transmission shaft is rotatably installed in the box body around its own axis, the output end of the indexing driving member is connected to the first end of the transmission shaft to drive the transmission shaft to rotate around its own axis; the first chuck is installed at the second end of the transmission shaft to drive the first chuck to rotate when the transmission shaft rotates under the drive of the indexing driving member;

[0009] A laser sensor, the laser sensor is installed above the first chuck, and the scanning head of the laser sensor corresponds to the commutator clamped by the first chuck to identify the reflective area of the under-grooving of the commutator;

[0010] Power head assembly, the power head assembly includes a moving mechanism and a milling power head; the moving mechanism is installed on the frame, the milling power head is installed at the output end of the moving mechanism, and when the moving mechanism operates, it can drive the milling power head to move along the axis direction of the transmission shaft and the vertical direction perpendicular to the axis of the transmission shaft, so that the milling power head grooves along the lower groove reflective area under the drive of the moving mechanism;

[0011] Control system; the indexing drive member, the moving mechanism, the milling power head and the laser sensor are all signal-connected to the control system.

[0012] Further, the moving mechanism includes a lifting mechanism and a horizontal displacement mechanism. The lifting mechanism is installed on the frame, and its output end can reciprocate in the vertical direction, and the vertical direction is perpendicular to the axis direction of the transmission shaft; the horizontal displacement mechanism is installed at the output end of the lifting mechanism, and the output end of the horizontal displacement mechanism can reciprocate in the axis direction of the transmission shaft; the milling power head is installed at the output end of the horizontal displacement mechanism. Through the moving mechanism, the reciprocating movement of the milling power head in the axis direction of the transmission shaft and the vertical direction perpendicular to the axis of the transmission shaft can be realized, so that the moving mechanism cooperates with the indexing drive member to realize grooving on the outer circumference of the commutator.

[0013] Further, the lifting mechanism includes a first fixing plate, a first driving motor, a first lead screw and a first fixing seat; the first fixing plate is arranged vertically and fixed to the frame, the first driving motor is installed on the first fixing plate, the first lead screw extends in the vertical direction, and the output shaft of the first driving motor is connected to the first lead screw to drive the first lead screw to rotate around its own axis, the first fixing seat is threadedly connected to the first lead screw, and the horizontal displacement mechanism is installed on the first fixing seat. By setting the lifting mechanism, the horizontal displacement mechanism can be realized to reciprocate along the first lead screw, and the axis direction of the first lead screw is perpendicular to the axis direction of the transmission shaft.

[0014] Further, the horizontal displacement mechanism includes a second fixing plate, a second driving motor, a second lead screw and a second fixing seat; the second fixing plate is arranged horizontally and fixed to the first fixing seat, the second driving motor is installed on the second fixing plate, the second lead screw extends in the horizontal direction, and the output shaft of the second driving motor is connected to the second lead screw to drive the second lead screw to rotate around its own axis, the second fixing seat is threadedly connected to the second lead screw, and the milling power head is installed on the second fixing seat. By setting the horizontal displacement mechanism and installing the horizontal displacement mechanism at the output end of the lifting mechanism, the reciprocating movement of the milling power head along the axis direction of the transmission shaft and the vertical direction perpendicular to the axis of the transmission shaft can be realized, and grooving on the outer circumference of the commutator can be realized.

[0015] Further, the milling power head includes a clamping seat, a second chuck, and a lower cutting tool; the clamping seat is installed on the second fixed seat, the second chuck is installed on the clamping seat, and the lower cutting tool is detachably installed on the clamping seat through the second chuck. This setting facilitates the replacement of the lower cutting tool.

[0016] Further, both ends of the lower cutting tool have cutting edges. This setting can double the service life of the lower cutting tool.

[0017] Further, the indexing drive member includes an indexing motor and an electromagnetic brake; the output shaft of the indexing motor is connected to the first end of the transmission shaft, and the electromagnetic brake is installed on the transmission shaft to control the precise braking of the indexing motor.

[0018] Further, it further includes a bracket; the bracket is fixed to the box body, and the laser sensor is fixed to the bracket.

[0019] Further, the frame includes a cabinet body; a tabletop is installed at the upper end of the cabinet body, and the box body and the lifting mechanism are both installed on the tabletop.

[0020] Further, the frame further includes a protective cover, and the protective cover covers the tabletop to protect the clamping and indexing assembly, the laser sensor, and the power head assembly. This setting can prevent unauthorized personnel from approaching, avoid danger, and also play a role in dust prevention.

[0021] Further, it further includes a dust collection component, and the dust collection component includes a dust collection pipeline and a vacuum cleaner; a dust collection port facing the first chuck is opened on the tabletop, and the dust collection port is connected to the vacuum cleaner through the dust collection pipeline. This setting can avoid dust flying.

[0022] Further, the dust collection port is a flared port, its large-diameter end faces the first chuck, and its small-diameter end is connected to the vacuum cleaner through the dust collection pipeline. This setting can better collect the chips generated by grooving (mainly bakelite powder, epoxy resin, and tiny powders of copper or copper alloy).

[0023] The utility model has the following advantages compared with the prior art:

[0024] 1. The commutator grooving machine of the utility model has a clamping and indexing assembly, which drives the transmission shaft to rotate by an indexing drive member, and a first chuck capable of clamping the commutator is installed on the transmission shaft, that is, the clamping and indexing assembly can drive the commutator to rotate while clamping the commutator; it has a moving mechanism that can drive the milling power head to move in the axial direction of the transmission shaft and in the vertical direction perpendicular to the axis of the transmission shaft. The clamping and indexing assembly and the moving assembly, combined with the laser sensor, can automatically find the grooving position, and can quickly, efficiently, and evenly complete the lower grooving processing between the armature commutator segments of the DC torque motor, which is suitable for automated and batch production.

[0025] 2. The commutator grooving machine of the present utility model adopts an operating structure similar to a spline shaft for its clamping indexing assembly. The indexing motor drives the transmission shaft to rotate, so as to drive the first chuck and the commutator to rotate, and the electromagnetic brake is used to precisely brake the indexing motor, thereby realizing the indexing rotation and clamping functions of the commutator.

[0026] 3. The commutator grooving machine of the present utility model can prevent dust from flying by setting a dust suction assembly, reduce the environmental pollution of the working environment, and ensure the physical health of personnel. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the commutator grooving machine in the embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the commutator grooving machine in the embodiment of the present utility model after removing the protective cover;

[0029] Figure 3 is a schematic structural diagram of the clamping indexing assembly in the commutator grooving machine in the embodiment of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the power head assembly in the commutator grooving machine in the embodiment of the present utility model;

[0031] Figure 5 is a schematic structural diagram of the dust suction assembly in the commutator grooving machine in the embodiment of the present utility model;

[0032] In the figure: 1. Frame; 2. Box body; 3. Transmission shaft; 4. Indexing motor; 5. First chuck; 6. Laser sensor; 7. Electromagnetic brake; 8. Bracket; 9. Lifting mechanism; 901. First fixing plate; 902. First driving motor; 903. First lead screw; 10. Horizontal displacement mechanism; 1001. Second fixing plate; 1002. Second driving motor; 1003. Second lead screw; 1004. Second fixing seat; 11. Milling power head; 1101. Clamping seat; 1102. Second chuck; 1103. Lower cutting tool; 12. Cabinet; 13. Table top; 14. Protective cover; 15. Dust collection port; 16. Dust suction pipeline; 17. Vacuum cleaner; 18. Support feet; 19. Limit plate. Detailed Embodiments

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0035] In addition, it should be understood that for the convenience of description, the sizes of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship.

[0036] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further specifically discuss and describe it in the description of the subsequent drawings.

[0037] Embodiment:

[0038] As Figures 1 to 5 shown, the present utility model provides a commutator grooving machine, including:

[0039] A frame 1, a clamping and indexing assembly installed on the frame 1, the clamping and indexing assembly including a box body 2, a transmission shaft 3, an indexing driving member, and a first chuck 5 for clamping the commutator; the box body 2 is installed on the frame 1, the transmission shaft 3 is rotatably installed in the box body 2 around its own axis, and the output end of the indexing driving member is connected to the first end of the transmission shaft 3 for driving the transmission shaft 3 to rotate around its own axis; the first chuck 5 is installed at the second end of the transmission shaft 3 so as to drive the first chuck 5 to rotate when the transmission shaft 3 rotates driven by the indexing driving member. The clamping and indexing assembly can realize the functions of clamping the commutator and driving the commutator to index and rotate. The first chuck can select the existing SC160F three-jaw chuck. By adjusting the chuck with a manual wrench, the clamping degree of the first chuck can be adjusted. Specifically, when in use, a special lower grooving fixture is installed at the axis of the commutator, and the first chuck clamps the special lower grooving fixture to realize the functions of clamping the commutator and driving the commutator to index and rotate.

[0040] The commutator grooving machine in this embodiment adopts a similar spline shaft structure to realize the indexing rotation and clamping functions. It uses a laser sensor for tracking to automatically find the grooving position, and can quickly, efficiently, and evenly complete the grooving processing between the commutator segments of the commutator, which is suitable for automated and batch production.

[0041] As Figure 2 and Figure 3As shown in the figure, in this embodiment, the indexing drive member includes an indexing motor 4 and an electromagnetic brake 7; the output shaft of the indexing motor 4 is connected to the first end of the transmission shaft 3, and the electromagnetic brake 7 is installed on the transmission shaft 3. By installing the electromagnetic brake, the accurate braking of the indexing motor 4 can be controlled. The electromagnetic brake 4 and the indexing motor 4 cooperate to enable the transmission shaft to rotate and stop in increments, realizing the uniformity of the circumferential distribution of the lower grooves along the commutator. During milling, the electromagnetic brake locks the transmission shaft to ensure the rigidity during product processing. When one groove is processed, the electromagnetic brake is released, and it rotates to the next groove, repeating the above operations until all the lower grooves are completed. The indexing motor 4 uses a servo motor, which has high indexing accuracy and fast response, and the indexing accuracy reaches ±0.02 degrees.

[0042] A laser sensor 6, the laser sensor is installed above the first chuck 5 through a bracket 8, and the scanning head of the laser sensor 6 corresponds to the commutator clamped by the first chuck 5 to identify the reflective area of the lower groove of the commutator; preferably, the bracket 8 is fixed on the box body 2 of the clamping and indexing assembly, and the laser sensor 6 is installed on the frame 1 so that the laser sensor 6 is located above the first chuck 5. During operation, the laser sensor 6 scans downwards to identify the reflective area of the lower groove of the commutator.

[0043] By using the laser sensor to scan, the position of the lower groove is automatically searched, realizing fast, efficient and uniform search for the groove position. The scanning principle of the laser sensor utilizes the different reflectivities of the commutator segments and the bakelite powder or epoxy. The system tracking accuracy is ±0.03 mm. Through the control system, the size and position of the commutator segments are automatically detected, compared and calculated to determine the position of the first lower groove. After the first lower groove is processed, the number of lower grooves is set by programming. The laser sensor will use the same principle to automatically search for the positions of the subsequent lower grooves, and finally complete the lower grooves with uniform circumferential distribution and consistent size.

[0044] The power head assembly, the power head assembly includes a moving mechanism and a milling power head; the moving mechanism is installed on the frame 1, the milling power head is installed at the output end of the moving mechanism, and when the moving mechanism acts, it can drive the milling power head to move along the axis direction of the transmission shaft 3 and the vertical direction perpendicular to the axis of the transmission shaft 3, so that the milling power head grooves along the reflective area of the lower groove under the drive of the moving mechanism;

[0045] In this embodiment, there is a control system; the indexing drive member, the moving mechanism, the milling power head and the laser sensor are all connected to the control system by signals. Through the control system, the indexing drive member, the moving mechanism, the milling power head and the laser sensor are controlled to work, realizing automatic grooving, and the lower grooves are evenly distributed along the circumference of the commutator and have consistent sizes.

[0046] As Figure 1 、 Figure 3 and Figure 4As shown in the figure, in this embodiment, the moving mechanism includes a lifting mechanism 9 and a horizontal displacement mechanism 10. The lifting mechanism 9 is installed on the frame 1, and its output end can reciprocate in the vertical direction, which is perpendicular to the axis direction of the transmission shaft 3. The horizontal displacement mechanism 10 is installed at the output end of the lifting mechanism 9, and the output end of the horizontal displacement mechanism 10 can reciprocate along the axis direction of the transmission shaft 3. The milling power head is installed at the output end of the horizontal displacement mechanism 10. With the cooperation of the lifting mechanism and the horizontal displacement mechanism, the milling power head is aligned with the commutator clamped by the first chuck, and the milling power head is gradually moved to realize automatic grooving.

[0047] Preferably, the lifting mechanism 9 includes a first fixing plate 901, a first driving motor 902, a first lead screw 903 and a first fixing seat (not shown in the figure). The first fixing plate 901 is arranged in the vertical direction (the vertical direction is perpendicular to the axis direction of the transmission shaft 3) and fixed to the frame 1. The first driving motor 902 is installed on the first fixing plate. The first lead screw 903 extends in the vertical direction, and the output shaft of the first driving motor 902 is connected to the first lead screw 903 to drive the first lead screw 903 to rotate around its own axis. The first fixing seat is threadedly connected to the first lead screw 903, and the horizontal displacement mechanism is installed on the first fixing seat. The first driving motor 902 drives the first lead screw 903 to rotate around its own axis, so that the first fixing seat reciprocates along the first lead screw 903, thereby realizing the reciprocating movement of the horizontal displacement mechanism 10 along the first lead screw 903.

[0048] The horizontal displacement mechanism includes a second fixing plate 1001, a second driving motor 1002, a second lead screw 1003 and a second fixing seat 1004. The second fixing plate 1001 is arranged in the horizontal direction (the horizontal direction is the axis direction of the transmission shaft) and fixed to the first fixing seat. The second driving motor 1002 is installed on the second fixing plate 1001. The second lead screw 1003 extends in the horizontal direction, and the output shaft of the second driving motor 1002 is connected to the second lead screw 1003 to drive the second lead screw 1003 to rotate around its own axis. The second fixing seat 1004 is threadedly connected to the second lead screw 1003, and the milling power head is installed on the second fixing seat 1004. With this setting, the servo lead screw mechanism can be used to realize the movement of the milling power head in the horizontal and vertical directions, ensuring the convenience of grooving and being able to be faster and more efficient.

[0049] Preferably, as Figure 3 and Figure 4 shown, a limiting plate 19 is provided at the bottom end of the first fixing plate 901 to limit the lowest position of the horizontal displacement mechanism moving along the first lead screw, ensure the depth of the lower groove, and at the same time, the limiting plate 19 can also play the role of supporting the second fixing seat 1004 and improve the stability of the second fixing seat 1004.

[0050] As shown Figure 4 in the figure, the milling power head includes a clamping seat 1101, a second chuck 1102 and a lower cutter 1103; the clamping seat 1101 is installed on the second fixed seat 1004, the second chuck 1102 is installed on the clamping seat 1101, and the lower cutter 1103 is detachably installed on the clamping seat through the second chuck. By providing the second chuck 1102, the disassembly and assembly of the lower cutter 1103 are facilitated.

[0051] In this embodiment, the second chuck 1102 adopts a conventional ER11 type spring chuck with a rotational speed of up to 20,000 revolutions per minute. The selection of the material, shape, and dimensional parameters of the lower cutting tool is also extremely important. The material of the lower cutting tool is selected as cemented carbide. The common width of the lower cutting groove is 0.3 - 0.4 mm, and the depth is 0.4 - 0.5 mm. The edge of the lower cutting tool should be as short as possible, the depth of the lower cutting groove should be consistent, a 45° conical surface edge is added, and a 2 - C0.1 mm chamfer on both sides of the lower cutting groove can be machined in one go, while increasing the rigidity and strength of the lower cutting tool. Both ends of the lower cutter have cutting edges. Through this setting, the tool life is extended by 1 time.

[0052] Specifically, in this embodiment, the frame 1 includes a cabinet 12; feet 18 are provided at the bottom of the cabinet, a table 13 is installed at the upper end of the cabinet 12, and the box body 2 and the lifting mechanism 9 are installed on the table 13. The frame 1 further includes a protective cover 14, and the protective cover 14 covers the table 13 to protect the clamping indexing assembly, the laser sensor, and the power head assembly. Through the protective cover 14, unrelated personnel can be prevented from approaching, avoiding danger, and further preventing dust.

[0053] As shown Figure 5 in the figure, this embodiment further includes a dust collection assembly, and the dust collection assembly includes a dust collection pipeline 16 and a dust collector 17; a dust collection port 15 facing the first chuck 5 is provided on the table 13, and the dust collection port 15 is connected to the dust collector 17 through the dust collection pipeline 16. The dust collection port 15 is a flared port, with its large - diameter end facing the first chuck and its small - diameter end connected to the dust collector 17 through the dust collection pipeline 16. The chips generated during grooving are mainly bakelite powder, epoxy resin, and tiny powders of copper or copper alloy, which are likely to cause dust environmental pollution and affect the health of operators. Therefore, a dust collection assembly is specifically provided to prevent dust from flying and avoid environmental pollution in the operation space.

[0054] During specific use:

[0055] Generally, a commutator needs to be equipped with a set of special undercutting jigs. It is positioned by the inner circular surface of the commutator (the inner circular surface of the central axis), and the end face is axially pressed by a disc-shaped pressing plate, so as to install the commutator in the special undercutting jig. Manually adjust the first chuck with a wrench to clamp the special undercutting jig; the indexing motor works to drive the transmission shaft to rotate, and the commutator rotates synchronously; the laser sensor scans the commutator and feeds the data back to the control system. After setting the number and depth of the grooves through the control system, the milling work starts. At this time, the electromagnetic brake locks the transmission shaft, and the commutator is fixed. The undercutting tool moves under the drive of the lifting mechanism and the horizontal displacement mechanism to machine grooves on the surface of the commutator. When one groove is machined, release the electromagnetic brake, and the indexing motor rotates to the next groove, and the above operations are repeated until all the grooves are undercut.

[0056] The commutator grooving machine of this embodiment can solve the problem that when manufacturing the motor commutator, the sizes, shapes, and arrangement distributions of the commutator segments cannot be completely consistent and uniform. In the prior art, the distances between adjacent commutator segments are different. In order to quickly, efficiently, and uniformly find the grooving positions, the present utility model sets a laser sensor. By using the different reflectivities of the commutator segments and bakelite powder or epoxy, it automatically detects the sizes and positions of the commutator segments, automatically compares and calculates to determine the position of the first undercut groove. After the first undercut groove is machined, the number of undercuts is set by programming. The laser sensor will use the same principle to automatically find the positions of the subsequent undercut grooves, and feed the data back to the indexing motor, the lifting mechanism, and the horizontal displacement mechanism. Under the control of the control system, the undercut grooves with uniform circumferential distribution and consistent size are finally completed.

[0057] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A commutator grooving machine, characterized in that, Comprising: Frame; Clamping indexing assembly, the clamping indexing assembly includes a box body, a transmission shaft, an indexing driving member and a first chuck for clamping the commutator; The box body is installed on the frame, the transmission shaft is rotatably installed in the box body around its own axis, and the output end of the indexing driving member is connected to the first end of the transmission shaft to drive the transmission shaft to rotate around its own axis; the first chuck is installed on the second end of the transmission shaft, so as to drive the first chuck to rotate when the transmission shaft rotates under the drive of the indexing driving member; Laser sensor, the laser sensor is installed above the first chuck, and the scanning head of the laser sensor corresponds to the commutator clamped by the first chuck to identify the reflective area of the lower groove of the commutator; Power head assembly, the power head assembly includes a moving mechanism and a milling power head; the moving mechanism is installed on the frame, the milling power head is installed at the output end of the moving mechanism, and when the moving mechanism acts, it can drive the milling power head to move along the axis direction of the transmission shaft and the vertical direction perpendicular to the axis of the transmission shaft, so that the milling power head grooves along the reflective area of the lower groove under the drive of the moving mechanism; Control system; the indexing driving member, the moving mechanism, the milling power head and the laser sensor are all signal-connected to the control system.

2. The commutator grooving machine according to claim 1, wherein: The moving mechanism includes a lifting mechanism and a horizontal displacement mechanism. The lifting mechanism is installed on the frame, and its output end can reciprocate in the vertical direction, and the vertical direction is perpendicular to the axis direction of the transmission shaft; the horizontal displacement mechanism is installed at the output end of the lifting mechanism, and the output end of the horizontal displacement mechanism can reciprocate in the axis direction of the transmission shaft; the milling power head is installed at the output end of the horizontal displacement mechanism.

3. The commutator grooving machine according to claim 2, characterized in that: The lifting mechanism includes a first fixing plate, a first driving motor, a first lead screw and a first fixing seat; the first fixing plate is arranged vertically and fixed to the frame, the first driving motor is installed on the first fixing plate, the first lead screw extends vertically, and the output shaft of the first driving motor is connected to the first lead screw to drive the first lead screw to rotate around its own axis, the first fixing seat is threadedly connected to the first lead screw, and the horizontal displacement mechanism is installed on the first fixing seat.

4. The commutator grooving machine according to claim 3, characterized in that: The horizontal displacement mechanism includes a second fixing plate, a second driving motor, a second lead screw and a second fixing seat; the second fixing plate is arranged horizontally and fixed to the first fixing seat, the second driving motor is installed on the second fixing plate, the second lead screw extends horizontally, and the output shaft of the second driving motor is connected to the second lead screw to drive the second lead screw to rotate around its own axis, the second fixing seat is threadedly connected to the second lead screw, and the milling power head is installed on the second fixing seat.

5. The commutator grooving machine according to claim 4, wherein: The milling power head includes a clamping seat, a second chuck and a lower grooving tool; the clamping seat is installed on the second fixing seat, the second chuck is installed on the clamping seat, and the lower grooving tool is detachably installed on the clamping seat through the second chuck.

6. The commutator grooving machine according to claim 1, characterized in that: The indexing driving member includes an indexing motor and an electromagnetic brake; the output shaft of the indexing motor is connected to the first end of the transmission shaft, and the electromagnetic brake is installed on the transmission shaft for controlling the precise braking of the indexing motor.

7. The commutator grooving machine according to claim 1, characterized in that: The frame includes a cabinet body; a tabletop is installed at the upper end of the cabinet body, and both the box body and the lifting mechanism are installed on the tabletop.

8. The commutator grooving machine according to claim 7, wherein: The frame further includes a protective cover, which covers the tabletop to protect the clamping indexing assembly, the laser sensor and the power head assembly.

9. The commutator grooving machine according to claim 7, wherein: It further includes a dust collection assembly, and the dust collection assembly includes a dust collection pipeline and a dust collector; a dust collection port facing the first chuck is formed on the tabletop, and the dust collection port is connected to the dust collector through the dust collection pipeline.

10. The commutator grooving machine according to claim 9, characterized in that: The dust collection port is a flared port, its large-diameter end faces the first chuck, and its small-diameter end is connected to the dust collector through the dust collection pipeline.

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