Machining device for belt pulley

Abstract

The invention discloses a belt pulley machining device, and relates to the field of belt pulley machining equipment. The belt pulley machining device comprises a machining tool which comprises a first area and a second area. The driving device is fixed to the first area through a mounting frame, the driving device comprises a first fixing assembly and a driving assembly, the first fixing assembly is arranged at the end of the driving assembly, and the first fixing assembly is used for being fixed to one end of an inner hole wheel of the belt wheel so that the driving assembly can drive the belt wheel to rotate; the second fixing assembly is arranged in the second area and used for being fixed to the other end of the inner hole wheel of the belt wheel. In the machining process of the belt pulley, the two sides of the belt pulley are clamped through the first fixing assembly and the second fixing assembly, and the belt pulley is driven to rotate, so that the installation stability of the belt pulley on a machining machine tool is improved, the deviation probability of the belt pulley is reduced, and the machining precision in the machining process of the belt pulley is improved.

Description

Technical Field

[0001] The invention relates to the field of pulley processing equipment, and in particular to a pulley processing device. Background Art

[0002] Belt pulleys are hub parts, generally with relatively large size, and are mainly manufactured by casting and forging. Belt pulleys are mainly used in situations where power is transmitted over long distances, such as the output of small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, some small-horsepower motorcycle power transmission, agricultural machinery power transmission, air compressors, reducers, reducers, generators, cotton gins, etc.

[0003] In the existing processing of the pulley, the staff needs to install the pulley on a processing bed and use a processing cutter to sequentially open grooves on the side wall of the pulley for working with the belt.

[0004] However, in the process of grooving on the existing processing machine, the pulley is fixed to the output shaft of the point motor by a three-jaw chuck, the pulley is driven to rotate, and the groove is cut by the friction between the processing tool and the side wall. The sizes and dimensions of the pulleys are various, and they need to be positioned first during installation, and then the grooves are cut at the designed position. Since some pulleys are too heavy, the vibration of the processing machine, or the friction between the processing tool and the pulley may cause the pulley to shift, resulting in poor quality of the groove, which reduces the processing accuracy during the pulley processing. Summary of the invention

[0005] In view of the defects existing in the prior art, the technical problem solved by the present invention is: how to improve the processing accuracy during the processing of the pulley.

[0006] In order to achieve the above purpose, the present invention provides a pulley processing device, comprising: A processing machine tool, comprising a first area and a second area, wherein a pulley installation space is formed between the first area and the second area; A driving device, which is fixed to the first area through a mounting frame, and comprises a first fixing component and a driving component, wherein the first fixing component is arranged at an end of the driving component, and the first fixing component is used to fix with one end of the inner hole wheel of the pulley, so that the driving component drives the pulley to rotate; The second fixing component is arranged in the second area, and is used to be fixed to the other end of the inner hole wheel of the pulley, so that the first fixing component and the second fixing component can clamp the pulley inside the pulley installation space.

[0007] By adopting the above technical solution, during the processing of the pulley, the two sides of the pulley are clamped by the first fixing component and the second fixing component, and the pulley is driven to rotate, thereby improving the installation stability of the pulley on the processing machine tool, reducing the probability of the pulley being offset, and thus improving the processing accuracy during the pulley processing.

[0008] In one embodiment, the driving device includes a driving frame, a motor and a rotating shaft. The driving frame is fixedly mounted on the mounting frame, and the motor is mounted on the mounting frame through a supporting frame. The driving frame is rotatably provided with a rotating shaft inside through a first bearing, and one end of the rotating shaft is fixedly provided on the output shaft of the motor, and the other end of the rotating shaft is fixedly provided with a first fixing component.

[0009] By adopting the above technical solution, the driving device is fixed on the processing machine, thereby reducing the impact of the vibration of the driving device during the processing.

[0010] In one embodiment, the first fixing assembly includes a first fixing body and a first clamping assembly, the first fixing body is fixed to the end of the driving assembly, the first clamping assembly is arranged on the first fixing body, and the first clamping assembly is used to clamp with the inner wall of the inner hole wheel.

[0011] By adopting the above technical solution, it is convenient for the driving component to drive the pulley to rotate, and the stability of the connection between the driving component and the pulley needs to be maintained.

[0012] In one embodiment, the first fixed body includes a fixed plate and a limiting plate, the first clamping assembly is arranged on the fixed plate, the limiting plate is arranged on the periphery of the fixed plate, and one side of the limiting plate is used to abut against one side of the pulley.

[0013] By adopting the above technical solution, the first fixing component is prevented from being inserted too deeply, thereby playing a role of limiting; at the same time, the contact surface between the first fixing component and the pulley is increased, thereby playing a role of making the clamping more stable.

[0014] In one embodiment, the first clamping assembly includes a chuck body, a fan-shaped claw, and a claw driving assembly. The chuck body is arranged on a fixed plate. A plurality of arc-shaped slide rails are provided on a side of the chuck body away from the fixed plate. Fan-shaped claws are movably provided on the arc-shaped slide rails. A claw driving assembly is provided inside the chuck body to realize synchronous movement of all fan-shaped claws along the arc-shaped slide rails.

[0015] By adopting the above technical solution and adjusting the position of the sector-shaped claw, inner hole wheels of different diameters can be clamped; at the same time, the sector-shaped claw fits more closely with the inner wall of the inner hole wheel, thereby further improving the stability of the clamping and further improving the processing accuracy during the pulley processing.

[0016] In one embodiment, a plurality of columns are arranged around a surface of the limit plate close to the pulley with the axis as the center, and the columns are used to penetrate the hole of the pulley and abut against the outer wall of the inner hole wheel to enable the fan-shaped claws and the columns to clamp the inner hole wheel.

[0017] By adopting the above technical solution, the inner hole wheel is clamped by the fan-shaped claws and the column, thereby improving the clamping stability between the first fixing component and the pulley, thereby further improving the processing accuracy during the pulley processing.

[0018] In one embodiment, the second fixing component includes a second fixing body, a telescopic shaft and a second clamping component, the second fixing body is fixedly arranged on the second area, a telescopic groove is opened on the second fixing body, the telescopic shaft is movably arranged inside the telescopic groove, and the end of the telescopic shaft outside the telescopic groove is provided with a second clamping component through a second bearing, and the second clamping component is used to clamp with the inner wall of the inner hole wheel, so that the second clamping component can rotate with the pulley and the telescopic groove does not rotate.

[0019] By adopting the above technical solution, it is convenient to move the pulley to the pulley installation space, and then through the movement of the telescopic shaft, the second clamping assembly is clamped into the inner hole wheel. Therefore, if the pulley installation space is large enough, it can be suitable for the processing of pulleys of different sizes, thereby improving the applicability of the processing device.

[0020] In one embodiment, a threaded rod is provided on the second clamping assembly, one end of the threaded rod is fixedly provided on the second clamping assembly, and the other end of the threaded rod is clamped in the threaded groove in the middle of the chuck body to realize the rotation of the threaded rod to make the claw drive assembly work.

[0021] By adopting the above technical solution, not only the connection stability between the first fixing component and the second fixing component is strengthened, but also the position of the sector-shaped claw can be adjusted by rotating the second clamping component so that the sector-shaped claw is against the inner wall of the inner hole wheel.

[0022] In one embodiment, a slotting assembly is provided on the processing machine tool, and the slotting assembly includes a first slide rod, a second slide rod and a processing knife. The first slide rod is fixedly provided on the processing machine tool, the second slide rod is movably provided on the first slide rod, and the processing knife is movably provided on the second slide rod to realize vertical and horizontal movement of the processing knife.

[0023] By adopting the above technical solution, it is easy to adjust the position of the processing knife, so that it can be suitable for processing pulleys of different sizes and processing grooves of different depths on the pulleys.

[0024] In one embodiment, the processing tool includes multiple clamping plates, blades and locking bolts. The multiple clamping plates are arranged in parallel, a blade is arranged between two adjacent clamping plates, and the locking bolts are passed through all the clamping plates and the blades to fix the blades between the clamping plates.

[0025] By adopting the above technical solution, grooves can be opened one by one in sequence, or multiple grooves can be opened at the same time; at the same time, it is convenient to replace blades of different models.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The first fixing component in the first area of ​​the processing machine tool and the second fixing component in the second area are used to clamp the two sides of the pulley to be processed. The driving component drives the first fixing component to rotate, thereby driving the pulley to rotate, thereby improving the installation stability of the pulley on the processing machine tool, reducing the probability of the pulley offset, and thus improving the processing accuracy of the pulley during processing; 2. Through the structural design of the first fixing component and the second fixing component, not only can the processing accuracy of the pulley be further improved, but also it can be applied to the processing of pulleys of different sizes, thereby improving the applicability of the processing device; 3. The processing tool composed of multiple clamping plates, blades and locking bolts can not only open multiple grooves at the same time, but also facilitate the replacement of blades of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a processing device for a pulley according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of a pulley according to an embodiment of the present invention; Figure 3 It is a schematic structural diagram of a first fixing assembly according to an embodiment of the present invention; Figure 4 for Figure 3 Side view of Figure 5 is a schematic structural diagram of a second fixing assembly according to an embodiment of the present invention; Figure 6 It is an exploded view of a processing knife according to an embodiment of the present invention.

[0028] In the figure: 1-processing machine, 101-first area, 102-second area, 103-pulley installation space, 104-mounting frame, 2-driving assembly, 201-support frame, 202-driving frame, 203-rotating shaft, 204-motor, 3-first fixing assembly, 301-fixing plate, 302-limiting plate, 303-first clamping assembly, 3031-chuck body, 3032-arc slide rail, 3033-sector claw, 3 034-thread groove, 304-column, 4-second fixed assembly, 401-second fixed body, 402-telescopic groove, 403-telescopic shaft, 404-second clamping assembly, 405-threaded rod, 5-slotting assembly, 501-first slide rod, 502-second slide rod, 503-processing knife, 5031-locking bolt, 5032-clamping plate, 5033-blade, 6-pulley, 601-inner hole wheel, 602-hole. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0030] The processing device of the pulley in the embodiment of the present invention is shown in Figure 1 , 2 As shown, the pulley processing device includes a processing machine tool 1, which includes a first area 101 and a second area 102, and a pulley installation space 103 is formed between the first area 101 and the second area 102; A driving device is fixed on the first area 101 of the processing machine tool 1 through a mounting frame 104, and the driving device includes a first fixing component 3 and a driving component 2. The first fixing component 3 is arranged at the end of the driving component 2, and the first fixing component 3 is used to be fixed to one end of the inner hole wheel 601 of the pulley 6, so that the driving component 2 drives the pulley 6 to rotate; The second area 102 of the processing machine tool 1 is provided with a second fixing component 4, which is used to fix to the other end of the inner hole wheel 601 of the pulley 6, so that the first fixing component 3 and the second fixing component 4 clamp the pulley 6 inside the pulley installation space 103.

[0031] It can be seen that the present invention divides the processing machine tool 1 into a first area 101 and a second area 102 on the left and right sides, and a pulley installation space 103 for installing the pulley 6 is formed between the first area 101 and the second area 102; first, the pulley 6 is transported to the designed position, and the first fixing component 3 is inserted from one end of the inner hole wheel 601 of the pulley 6, and the second fixing component 4 is inserted from the other end of the inner hole wheel 601 of the pulley 6, so that the first fixing component 3 is engaged with the inner wall of the inner hole wheel 601, and the second fixing component 4 is also engaged with the inner wall of the inner hole wheel 601, thereby clamping the two sides of the pulley 6, and the driving component 2 drives the first fixing component 3 to rotate, thereby driving the pulley 6 to rotate, thereby improving the installation stability of the pulley 6 on the processing machine tool 1, reducing the probability of the pulley 6 being offset, and thus improving the processing accuracy of the pulley 6 during the processing process.

[0032] Preferably, see Figure 1 As shown, a specific structure of a driving device is provided: The driving device includes a driving frame 202, a motor 204 and a rotating shaft 203. The driving frame 202 is fixedly mounted on the mounting frame 104. The motor 204 is mounted on the mounting frame 104 through a supporting frame 201. The rotating shaft 203 is rotatably arranged inside the driving frame 202 through a first bearing, and one end of the rotating shaft 203 is fixedly arranged on the output shaft of the motor 204, and the other end of the rotating shaft 203 is fixedly arranged with a first fixing component 3.

[0033] Specifically, the driving frame 202 is fixed to the first area 101 of the processing machine tool 1 through the mounting frame 104. In order to allow the rotating shaft 203 to rotate normally, it is rotatably arranged inside the driving frame 202 through a first bearing (sleeved on the outer periphery of the rotating shaft 203), and one end of the rotating shaft 203 is fixedly connected to the output shaft of the motor 204 to drive the rotation of the rotating shaft 203. In order to stabilize the motor 204, the motor 204 is installed on the mounting frame 104 through the support frame 201. Some vibration reduction treatments can be performed on the motor 204, such as paving or wrapping with rebound structures such as sponges and soft cushions; the other end of the rotating shaft 203 is fixedly provided with a first fixing component 3, thereby driving the first fixing component 3 to rotate.

[0034] Preferably, see Figure 1 , 3 As shown, a specific structure of a first fixing component 3 is provided: The first fixing component 3 includes a first fixing body and a first clamping component 303 . The first fixing body is fixed to the end of the driving component 2 . The first clamping component 303 is arranged on the first fixing body and is used to clamp with the inner wall of the inner hole wheel 601 .

[0035] Specifically, the first fixed body is sleeved on the end of the rotating shaft 203 of the driving component 2, and the first fixed body is driven to rotate by the rotating shaft 203, and a first clamping component 303 is fixedly provided on the side of the first fixed body away from the rotating shaft 203, so that the first fixed body drives the first clamping component 303 to rotate synchronously, and the first clamping component 303 is clamped with the inner wall of the inner hole wheel 601, so that the pulley 6 is driven to rotate synchronously through the first clamping component 303.

[0036] For further information, see Figure 3 As shown, the first fixed body includes a fixed plate 301 and a limiting plate 302 , the first clamping assembly 303 is arranged on the fixed plate 301 , the limiting plate 302 is arranged on the periphery of the fixed plate 301 , and one side of the limiting plate 302 is used to abut against one side of the pulley 6 .

[0037] Specifically, the first fixed body is split into a fixed plate 301 and a limiting plate 302, one end of the fixed plate 301 is sleeved on the rotating shaft 203, and the other end thereof is fixed with a first clamping component 303, and a limiting plate 302 is arranged on the periphery of the fixed plate 301, and the diameter of the limiting plate 302 is larger than the diameter of the inner hole wheel 601, so as to avoid excessive penetration of the first fixed component 3 and play a limiting role; at the same time, the contact surface between the first fixed component 3 and the pulley 6 is increased, so as to play a more stable clamping role.

[0038] For further information, see Figure 3 , 4 As shown, a specific structure of a first clamping assembly 303 is provided: The first clamping assembly 303 includes a chuck body 3031, a fan-shaped claw 3033, and a claw driving assembly 2. The chuck body 3031 is arranged on the fixed plate 301. A plurality of arc-shaped slide rails 3032 are provided on a side of the chuck body 3031 away from the fixed plate 301. The fan-shaped claw 3033 is movably arranged on the arc-shaped slide rail 3032. The inside of the chuck body 3031 is provided with a claw driving assembly 2 to realize the synchronous movement of all the fan-shaped claws 3033 along the arc-shaped slide rail 3032.

[0039] Specifically, a chuck body 3031 is fixed to one end of the fixed plate 301 away from the rotating shaft 203, and a plurality of arc-shaped slide rails 3032 are provided on one side of the chuck body 3031 away from the fixed plate 301, and the arc-shaped slide rails 3032 are evenly distributed on the chuck body 3031 with the axis of the chuck body 3031 as the center of the circle, and the direction of the arc-shaped slide rails 3032 is from the center of the circle to the circumference, and a sector-shaped claw 3033 is movably provided on each arc-shaped slide rail 3032, and a claw driving assembly 2 is provided inside the chuck body 3031, and the driving assembly 2 can make the sector-shaped claw 3033 move along the arc-shaped slide rail 3032, that is, the sector-shaped claw 3033 can move from the inside to the outside, and can also move from the outside to the inside, and the arc surface of the sector-shaped claw 3033 is always facing outward, so that the diameter of the circle formed by the arc surfaces of all the sector-shaped claws 3033 can change. By adjusting the position of the sector-shaped claw 3033, the inner hole wheel 601 of different diameters can be clamped; at the same time, the sector-shaped claw 3033 fits more closely with the inner wall of the inner hole wheel 601, thereby further improving the stability of the clamping, thereby further improving the processing accuracy of the pulley 6 during processing.

[0040] For further information, see Figure 3 , 4 As shown, a plurality of columns 304 are arranged around the axis on one side of the limit plate 302 close to the pulley 6, and the columns 304 are used to penetrate the hole 602 of the pulley 6 and abut against the outer wall of the inner hole wheel 601, so that the fan-shaped claws 3033 and the columns 304 can clamp the inner hole wheel 601.

[0041] Specifically, on one side of the limit plate 302 close to the pulley 6, with the axis as the center, a plurality of columns 304 are arranged around the circle, and the cross-sectional shape of the column 304 can be circular, triangular, rectangular, etc., and is preferably the same as the innermost shape of the hole 602 of the pulley 6, so that the side of the column 304 fits with the innermost side of the hole 602. When the fan-shaped claw 3033 moves from the inside to the outside, the fan-shaped claw 3033 abuts against the inner wall of the inner hole wheel 601, and the column 304 abuts against the outer wall of the inner hole wheel 601, so that the fan-shaped claw 3033 and the column 304 clamp the inner hole wheel 601, thereby improving the clamping stability between the first fixing component 3 and the pulley 6, thereby further improving the processing accuracy of the pulley 6 during the processing.

[0042] Preferably, see Figure 1 , 5 As shown, a specific structure of a second fixing component 4 is provided: The second fixed component 4 includes a second fixed body 401, a telescopic shaft 403 and a second clamping component 404. The second fixed body 401 is fixedly arranged on the second area 102. A telescopic slot 402 is opened on the second fixed body 401. The telescopic shaft 403 is movably arranged inside the telescopic slot 402. The end of the telescopic shaft 403 located outside the telescopic slot 402 is provided with a second clamping component 404 through a second bearing, and the second clamping component 404 is used to clamp with the inner wall of the inner hole wheel 601, so that the second clamping component 404 rotates with the pulley 6, and the telescopic slot 402 does not rotate.

[0043] Specifically, the second fixed body 401 is fixed to the second area 102 of the processing machine 1, and a telescopic slot 402 is provided inside the second fixed body 401. The telescopic shaft 403 moves along the inner wall of the telescopic slot 402 to realize the extension and contraction of the telescopic shaft 403 inside the second fixed body 401, and a second clamping assembly 404 is provided at the end of the telescopic shaft 403 outside the telescopic slot 402 through a second bearing. The second clamping assembly 404 is inserted into the inner hole wheel 601 and clamped with the inner wall of the inner hole wheel 601, and the telescopic shaft 403 is connected to the second clamping assembly 404 through a second bearing, and the second bearing is sleeved to the periphery of the second clamping assembly 404. The operation process is: the pulley 6 is moved to the pulley installation space 103, and then the second clamping assembly 404 is clamped into the inner hole wheel 601 through the movement of the telescopic shaft 403. Therefore, when the pulley installation space 103 is large enough, it can be applied to the processing of pulleys 6 of different sizes, thereby improving the applicability of the processing device.

[0044] For further information, see Figure 3-5 As shown, a threaded rod 405 is provided on the second clamping assembly 404, one end of the threaded rod 405 is fixedly provided on the second clamping assembly 404, and the other end of the threaded rod 405 is clamped in the threaded groove 3034 in the middle of the chuck body 3031 to realize the rotation of the threaded rod 405 to make the claw driving assembly 2 work.

[0045] Specifically, the end of the second clamping assembly 404 is fixedly connected to one end of the threaded rod 405, and the other end of the threaded rod 405 is clamped to the threaded groove 3034 in the middle of the chuck body 3031. The operation process is: after the pulley 6 is clamped by the first clamping assembly 303 and the second clamping assembly 404, the outer end of the inner hole wheel 601 is screwed by screwing the second clamping assembly 404, thereby driving the threaded rod 405 to rotate, and the threaded rod 405 drives the gear inside the threaded groove 3034 to rotate. The gear is part of the claw driving assembly 2 (the principle is similar to that of a three-jaw chuck), thereby adjusting the sector-shaped claw 3033 to move from the inside to the outside until the sector-shaped claw 3033 is against the inner wall of the inner hole wheel 601. Therefore, the design of the threaded rod 405 not only strengthens the connection stability between the first fixing component 3 and the second fixing component 4, but also can adjust the position of the sector-shaped claw 3033 by rotating the second clamping component 404 so that the sector-shaped claw 3033 is against the inner wall of the inner hole wheel 601, thereby facilitating the adjustment of the sector-shaped claw 3033.

[0046] Preferably, see Figure 1 As shown, a slotting assembly 5 is provided on the processing machine tool 1, and the slotting assembly 5 includes a first slide rod 501, a second slide rod 502 and a processing knife 503. The first slide rod 501 is fixedly arranged on the processing machine tool 1, the second slide rod 502 is movably arranged on the first slide rod 501, and the processing knife 503 is movably arranged on the second slide rod 502 to realize vertical and horizontal movement of the processing knife 503.

[0047] Specifically, the first slide rod 501 is fixedly set on the processing machine tool 1, the second slide rod 502 is movably set on the first slide rod 501 through the first slider, and the processing knife 503 is movably set on the second slide rod 502 through the second slider, so it is convenient to adjust the position of the processing knife 503, so that it can be suitable for processing pulleys 6 of different sizes and processing grooves of different depths on the pulley 6.

[0048] For further information, see Figure 6 As shown, a specific structure of a processing knife 503 is provided: The processing knife 503 includes multiple clamping plates 5032, blades 5033 and locking bolts 5031. The multiple clamping plates 5032 are arranged in parallel, and a blade 5033 is arranged between two adjacent clamping plates 5032. The locking bolts 5031 are penetrated through all the clamping plates 5032 and blades 5033 to fix the blades 5033 between the clamping plates 5032.

[0049] Specifically, the blade 5033 is clamped by the clamping plate 5032, and the clamping plate 5032 and the blade 5033 are fixed by the locking bolt 5031. The number of blades 5033 can be set according to actual needs, and it is only necessary to satisfy that the number of clamping plates 5032 is one more than the number of blades 5033, and different types of blades 5033 can be installed. Therefore, the processing knife 503 can open grooves one by one in sequence, or open multiple grooves at the same time; at the same time, it is convenient to replace blades 5033 of different types, or replace new blades 5033.

[0050] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A pulley processing device, characterized in that: It includes: A processing machine tool (1), comprising a first area (101) and a second area (102), wherein a pulley installation space (103) is formed between the first area (101) and the second area (102); A driving device, which is fixed to the first area (101) via a mounting frame (104), the driving device comprising a first fixing component (3) and a driving component (2), the first fixing component (3) being arranged at an end of the driving component (2), the first fixing component (3) being used to fix to one end of an inner hole wheel (601) of a pulley (6), so as to enable the driving component (2) to drive the pulley (6) to rotate; A second fixing component (4) is arranged in the second area (102), and is used to fix to the other end of the inner hole wheel (601) of the pulley (6), so as to enable the first fixing component (3) and the second fixing component (4) to clamp the pulley (6) inside the pulley installation space (103).

2. The pulley processing device according to claim 1, characterized in that: The driving device comprises a driving frame (202), a motor (204) and a rotating shaft (203); the driving frame (202) is fixedly mounted on the mounting frame (104); the motor (204) is mounted on the mounting frame (104) via a supporting frame (201); a rotating shaft (203) is rotatably arranged inside the driving frame (202) via a first bearing; one end of the rotating shaft (203) is fixedly arranged on an output shaft of the motor (204); and a first fixing component (3) is fixedly arranged on the other end of the rotating shaft (203).

3. The pulley processing device according to claim 1, characterized in that: The first fixing assembly (3) comprises a first fixing body and a first clamping assembly (303); the first fixing body is fixed to the end of the driving assembly (2); the first clamping assembly (303) is arranged on the first fixing body, and the first clamping assembly (303) is used to clamp with the inner wall of the inner hole wheel (601).

4. The pulley processing device according to claim 3, characterized in that: The first fixed body comprises a fixed plate (301) and a limiting plate (302), the first clamping assembly (303) is arranged on the fixed plate (301), the limiting plate (302) is arranged on the periphery of the fixed plate (301), and one side of the limiting plate (302) is used to abut against one side of the pulley (6).

5. The pulley processing device according to claim 4, characterized in that: The first clamping assembly (303) comprises a chuck body (3031), a sector-shaped clamping claw (3033), and a clamping claw driving assembly (2); the chuck body (3031) is arranged on a fixed plate (301); a side of the chuck body (3031) away from the fixed plate (301) is provided with a plurality of arc-shaped slide rails (3032); the sector-shaped clamping claw (3033) is movably arranged on the arc-shaped slide rails (3032); and a clamping claw driving assembly (2) is arranged inside the chuck body (3031) to realize synchronous movement of all the sector-shaped clamping claws (3033) along the arc-shaped slide rails (3032).

6. The pulley processing device according to claim 5, characterized in that: A plurality of columns (304) are arranged around a surface of the limit plate (302) close to the pulley (6) with the axis as the center, and the columns (304) are used to penetrate the hole (602) of the pulley (6) and abut against the outer wall of the inner hole wheel (601) so that the fan-shaped claws (3033) and the columns (304) can clamp the inner hole wheel (601).

7. The pulley processing device according to claim 5, characterized in that: The second fixing component (4) comprises a second fixing body (401), a telescopic shaft (403) and a second clamping component (404); the second fixing body (401) is fixedly arranged on the second area (102); a telescopic slot (402) is provided on the second fixing body (401); the telescopic shaft (403) is movably arranged inside the telescopic slot (402); an end of the telescopic shaft (403) located outside the telescopic slot (402) is provided with a second clamping component (404) via a second bearing; and the second clamping component (404) is used to clamp with the inner wall of the inner hole wheel (601) so that the second clamping component (404) rotates with the pulley (6) and the telescopic slot (402) does not rotate.

8. The pulley processing device according to claim 7, characterized in that: The second clamping assembly (404) is provided with a threaded rod (405), one end of the threaded rod (405) is fixedly arranged on the second clamping assembly (404), and the other end of the threaded rod (405) is clamped to a thread groove (3034) in the middle of the chuck body (3031), so that the threaded rod (405) can be rotated to make the claw drive assembly (2) work.

9. The pulley processing device according to claim 1, characterized in that: The processing machine tool (1) is provided with a slotting assembly (5), the slotting assembly (5) comprising a first slide rod (501), a second slide rod (502) and a processing knife (503), the first slide rod (501) being fixedly arranged on the processing machine tool (1), the second slide rod (502) being movably arranged on the first slide rod (501), and the processing knife (503) being movably arranged on the second slide rod (502) to realize vertical and horizontal movement of the processing knife (503).

10. The pulley processing device according to claim 9, characterized in that: The processing knife (503) comprises a plurality of clamping plates (5032), a blade (5033) and a locking bolt (5031); the plurality of clamping plates (5032) are arranged in parallel, a blade (5033) is arranged between two adjacent clamping plates (5032), and the locking bolt (5031) is arranged through all the clamping plates (5032) and the blade (5033) to achieve the fixing of the blade (5033) between the clamping plates (5032).

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