Cutting device for metal roller shaft machining

By combining fixed-axis clamping and planetary cutting unit, the problem of non-perpendicular roller cutting end face caused by unidirectional feed of saw blade is solved, realizing high-precision and low-roughness roller cutting, extending tool life and adapting to roller cutting of different specifications.

CN122210109APending Publication Date: 2026-06-16DONGGUAN HEHUI PRECISION MACHINERY EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN HEHUI PRECISION MACHINERY EQUIP CO LTD
Filing Date
2026-04-14
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In existing technologies, uneven force is applied to the saw blade during unidirectional feeding, causing the roller cutting end face to be non-perpendicular to the axis, affecting the positioning accuracy of the center hole and increasing the scrap rate.

Method used

By employing a fixed-axis clamping unit and a planetary cutting unit, and through a support table, an arc-shaped abutment seat, a ring-shaped tool holder, and a circumferential feed assembly, the cutting tool is ensured to rotate and feed synchronously along the roller axis, forming a planetary cutting trajectory, evenly distributing the cutting force, sharing the cutting load, and achieving the perpendicularity accuracy between the cutting end face and the axis.

Benefits of technology

It improves the vertical accuracy of roller cutting, reduces surface roughness, extends tool life, adapts to the cutting needs of rollers of different lengths, and reduces cutting force.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of metal cutting, in particular to a cutting device for metal roller shaft machining, which comprises a base, a supporting table arranged on the base, a fixed shaft clamping unit arranged on the supporting table, and a planetary cutting unit arranged on the supporting table. The annular cutter holder is driven to rotate by the fixed wheel three, the cutting tools are symmetrically arranged on the annular cutter holder in the circumferential direction, the roller shaft is kept coaxial with the annular cutter holder by cooperating with the supporting column and the movable arm, a plurality of cutting tools rotate synchronously around the roller shaft axis and feed during cutting, a planetary cutting track is formed on the central shaft of the roller shaft, the cutting force is uniformly distributed in the circumferential direction and is mutually offset, the perpendicular precision of the cutting end face and the roller shaft axis is ensured; meanwhile, the cutting load is shared by the plurality of cutting tools, the single-blade cutting thickness is thinned, the cutting force is reduced, and the service life of the cutting tool is prolonged; the planetary cutting makes the cutting lines on the cutting surface of the roller shaft be concentric circles, the surface roughness is low, and the subsequent end face machining allowance is reduced.
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Description

Technical Field

[0001] This invention relates to the field of metal cutting, and in particular to a cutting device for metal roller processing. Background Technology

[0002] Rollers are common key components in industrial equipment, widely used in rolling mills, conveyors, printing machinery, and other fields. Their processing and manufacturing typically requires cutting cylindrical metal bars into blanks of specific lengths. Currently, commonly used roller cutting methods mainly include band sawing, abrasive wheel cutting, and flame cutting. During the cutting process of traditional band saws, uneven force is easily generated due to the unidirectional feed of the saw blade, which easily leads to wobble. This causes the cut end face to be non-perpendicular to the roller axis, affecting the positioning accuracy of subsequent center hole machining, and consequently resulting in excessive coaxiality of the finished roller and an increased scrap rate. Summary of the Invention

[0003] In view of the problems in the above or existing technologies, such as uneven force distribution during unidirectional feed of the saw blade, which easily leads to wobble and causes the cutting end face to be non-perpendicular to the roller axis, affecting the positioning accuracy of subsequent center hole processing, and consequently causing the finished roller to have excessive coaxiality and increased scrap rate, this invention is proposed.

[0004] Therefore, the object of the present invention is to provide a cutting device for metal roller processing.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cutting device for metal roller processing, comprising a base, a support platform disposed on the base, a fixed-axis clamping unit disposed on the support platform, and a planetary cutting unit disposed on the support platform; the fixed-axis clamping unit comprises an arc-shaped abutment seat disposed on the support platform, an abutment wheel disposed on the arc-shaped abutment seat, a fixed-axis clamping assembly disposed on the support platform, a clamping block disposed on the fixed-axis clamping assembly, and a control assembly disposed on the support platform for cooperating with the fixed-axis clamping assembly; the planetary cutting unit comprises cutting support assemblies disposed at both ends of the support platform, an annular tool holder rotatably disposed on the cutting support assembly and concentric with the cutting support assembly, a circumferential feed assembly disposed on the annular tool holder, two sets of cutting tools disposed opposite to each other on the annular tool holder, and a spacing adjustment assembly disposed on the cutting support assembly for cooperating with the annular tool holder.

[0006] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the fixed axis clamping assembly includes a support column slidably disposed on the support platform, a guide block disposed at the lower end of the support column, a movable arm rotatably disposed on the support platform, and an abutting wheel two disposed at the lower end of the movable arm; the guide block is provided with an inclined surface that cooperates with the abutting wheel two; and a clamping block is provided at the upper end of the support column and the movable arm.

[0007] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the support platform is provided with a movable cavity that cooperates with the support column, guide block and movable arm; a limiting block one that cooperates with the support column is provided on the movable cavity; and a limiting block two that cooperates with the guide block is provided on the movable cavity.

[0008] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the control component includes a screw rod that is threadedly disposed at the bottom of the guide block, a fixed wheel disposed on the screw rod and rotatably connected to the support platform, a transmission belt disposed on the fixed wheel, an input wheel disposed on the transmission belt, and a motor whose output end is fixedly connected to the input wheel.

[0009] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the cutting support assembly includes annular fixed frames disposed at both ends of the support platform, a connecting plate disposed at the bottom of the annular fixed frames and slidably connected to the support platform, multiple sets of adjusting gears rotatably disposed on the base, a second fixed wheel disposed on one set of adjusting gears, a second input wheel disposed on the base and controlled to rotate by a servo motor, and a second transmission belt disposed on the second input wheel and the second fixed wheel; the connecting plate is provided with a rack that cooperates with the adjusting gears.

[0010] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the circumferential feed assembly includes a gear ring 1 rotatably mounted on the annular tool holder and cocentric with the annular tool holder, an input wheel 3 mounted on the annular tool holder and meshing with the gear ring 1, and a motor 3 mounted on the annular tool holder and whose output end is fixedly connected to the input wheel 3.

[0011] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the circumferential feed assembly further includes a fixed block disposed on the annular tool holder, a gear ring two rotatably disposed on the fixed block and meshing with a gear ring two, a screw two movably disposed on the fixed block and threadedly engaged with the gear ring two, and a limiting rod movably disposed on the fixed block; the cutting tool is provided with a connecting seat, the connecting seat is fixedly connected to the screw two and the limiting rod, and the moving direction of the connecting seat relative to the fixed block intersects and is perpendicular to the central axis of the roller annular tool holder.

[0012] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the spacing adjustment component includes a motor four disposed on the base, an input wheel four disposed on the output end of the motor four, a transmission wheel rotatably disposed on the support platform and meshing with the input wheel four, a limiting shaft disposed on the central shaft of the transmission wheel, and a bushing movably disposed on the support platform and cooperating with the limiting shaft.

[0013] As a preferred embodiment of the cutting device for metal roller processing of the present invention, the spacing adjustment component further includes a transmission belt three disposed on the bushing, and a fixed wheel three disposed on the transmission belt three and rotatably connected to the annular fixed frame; one end of the bushing is rotatably connected to the annular fixed frame; the fixed wheel three is meshed with the annular tool holder.

[0014] The beneficial effects of the cutting device for metal roller processing of the present invention are as follows: The present invention drives the annular tool holder to rotate through a fixed wheel. The cutting tools are symmetrically arranged circumferentially on the annular tool holder. At the same time, the roller is held coaxially with the annular tool holder by the support column and the movable arm. During cutting, multiple cutting tools rotate synchronously and feed around the axis of the roller, forming a planetary cutting trajectory on the central axis of the roller. The cutting force is evenly distributed circumferentially and cancels each other out, ensuring the perpendicularity accuracy of the cutting end face to the axis of the roller. At the same time, multiple cutting tools share the cutting load, the single-edge cutting thickness is reduced, the cutting force is reduced, and the tool life is extended. The planetary cutting makes the cutting surface of the roller concentric circle, with low surface roughness, reducing the subsequent end face machining allowance. By adjusting the cooperation of the gear and rack, the spacing between the annular fixed frame is controlled, and with the sliding support of the roller, the device can quickly adapt to the cutting needs of rollers of different lengths. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a cutting device for processing metal rollers.

[0017] Figure 2 This is a side view of the cutting device used for processing metal rollers.

[0018] Figure 3 A schematic cross-sectional view of the movable cavity of a cutting device for metal roller processing.

[0019] Figure 4 A cross-sectional schematic diagram of the guide block for a cutting device used in metal roller processing.

[0020] Figure 5 A schematic diagram of the bottom structure of the support platform for a cutting device used in metal roller processing.

[0021] Figure 6 A cross-sectional schematic diagram of the support platform for a cutting device used in metal roller processing.

[0022] Figure 7 A schematic diagram of the transmission belt three of the cutting device for metal roller processing.

[0023] Figure 8 This is a schematic diagram of the circumferential feed assembly of a cutting device for metal roller processing.

[0024] Figure 9 Cutting device for metal roller processing Figure 8 Enlarged view of the structure at point A in the middle.

[0025] In the diagram: 1. Base; 2. Support platform; 21. Movable cavity; 22. Limiting block one; 23. Limiting block two; 3. Fixed-axis clamping unit; 31. Arc-shaped abutment seat; 32. Abutment wheel one; 33. Fixed-axis clamping assembly; 331. Support column; 332. Guide block; 3321. Inclined surface; 333. Movable arm; 334. Abutment wheel two; 34. Clamping block; 35. Control assembly; 351. Screw one; 352. Fixed wheel one; 353. Transmission belt one; 354. Input wheel one; 355. Motor one; 4. Planetary cutting unit; 41. Cutting support assembly; 411. Circular fixing frame; 412. Connecting plate 4121. Rack; 413. Adjusting gear; 414. Fixed wheel two; 415. Input wheel two; 416. Transmission belt two; 42. Annular tool holder; 43. Circumferential feed assembly; 431. Gear ring one; 432. Input wheel three; 433. Motor three; 434. Fixing block; 435. Gear ring two; 436. Screw two; 437. Limiting rod; 44. Cutting tool; 441. Connecting seat; 45. Spacing adjustment assembly; 451. Motor four; 452. Input wheel four; 453. Transmission wheel; 454. Limiting shaft; 455. Bushing; 456. Transmission belt three; 457. Fixed wheel three; 5. Roller shaft. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example 1, referring to Figure 1 - Figure 3This is the first embodiment of the present invention. This embodiment provides a cutting device for processing metal rollers, which includes a base 1, a support platform 2 disposed on the base 1, a fixed-axis clamping unit 3 disposed on the support platform 2, and a planetary cutting unit 4 disposed on the support platform 2. The base 1 is used to provide support and a mounting platform for the support platform 2, the fixed-axis clamping unit 3, and the planetary cutting unit 4. The support platform 2 is used to cooperate with the fixed-axis clamping unit 3 to provide support for the roller 5. The fixed-axis clamping unit 3 is used to perform fixed-axis clamping on the roller 5, so that the rollers 5 of different diameters are kept coaxial in a stable clamping state. The planetary cutting unit 4 is used to cut the two ends of the roller 5 clamped by the fixed-axis clamping unit 3.

[0028] The fixed-axis clamping unit 3 includes an arc-shaped abutment seat 31 disposed on the support platform 2, an abutment wheel 32 disposed on the arc-shaped abutment seat 31, a fixed-axis clamping assembly 33 disposed on the support platform 2, a clamping block 34 disposed on the fixed-axis clamping assembly 33, and a control assembly 35 disposed on the support platform 2 for cooperating with the fixed-axis clamping assembly 33. The arc-shaped abutment seat 31 is used to cooperate with the abutment wheel 32 to abut against the roller shaft 5. The arc-shaped abutment seat 31 keeps the roller shaft 5 at the bottom when it is on the arc-shaped abutment seat 31, which facilitates the fixed-axis clamping assembly 33 to clamp the roller shaft 5. The abutment wheel 32 is used to facilitate the adjustment of the position of the roller shaft 5 on the arc-shaped abutment seat 31. The clamping block 34 is used to cooperate with the fixed-axis clamping assembly 33 to contact the outer surface of the roller shaft 5 and clamp the roller shaft 5. The control assembly 35 is used to adjust and control the movement of the fixed-axis clamping assembly 33 to perform fixed-axis clamping of roller shafts 5 of various diameters.

[0029] The planetary cutting unit 4 includes cutting support assemblies 41 disposed at both ends of the support platform 2, an annular blade holder 42 rotatably disposed on the cutting support assemblies 41 and concentric with the cutting support assemblies 41, a circumferential feed assembly 43 disposed on the annular blade holder 42, two sets of cutting blades 44 disposed opposite to each other on the annular blade holder 42, and a spacing adjustment assembly 45 disposed on the cutting support assembly 41 for cooperating with the annular blade holder 42. The cutting support assembly 41 provides support for the annular blade holder 42 and adjusts the position of the cutting blades 44 axially on the roller 5. The center of the cutting support assembly 41 coincides with the clamping center axis of the fixed-axis clamping assembly 33. This arrangement ensures that the annular blade holder 42 is always clamped by the fixed-axis clamping assembly 33. The roller shaft 5 is in a coaxial state, which facilitates the precise cutting of the roller shaft 5 by the adjustment of the circumferential feed assembly 43. The annular cutter holder 42 is used to rotate on the cutting support assembly 41, thereby driving the cutting cutter 44 to rotate around the roller shaft 5. The circumferential feed assembly 43 is used to control the feed of the cutting cutter 44 around the roller shaft 5, and the cutting of the roller shaft 5 is achieved in conjunction with the rotation of the annular cutter holder 42. The spacing adjustment assembly 45 is used to control the rotation of the annular cutter holder 42. The cutting cutter 44 is equipped with a coolant nozzle to cool the cutting part of the roller shaft 5. At the same time, the cutting support assembly 41 is equipped with a recovery tank for collecting coolant, and the coolant containing debris is collected and sent to the filtration and circulation device for filtration and recycling.

[0030] In summary, firstly, the relative distance between the cutting tools 44 on the same annular tool holder 42 is adjusted to the maximum using the circumferential feed assembly 43. Then, the roller 5 is moved onto the abutment wheel 32 using the hoisting equipment. Under the action of the arc-shaped abutment seat 31, the roller 5 is affected by gravity and moves to the lowest position of the arc-shaped abutment seat 31. At this point, the roller 5 is moved to a suitable position using the abutment wheel 32. Then, the control assembly 35 is activated, controlling the fixed-axis clamping assembly 33 to clamp the roller 5 using the clamping block 34. When the clamping block 34... After the roller shaft 5 is stably clamped, the roller shaft 5 and the annular cutter holder 42 are in a coaxial state. At this time, the cutting support assembly 41 adjusts the annular cutter holder 42 to a suitable position. Then, the spacing adjustment assembly 45 is activated, controlling the annular cutter holder 42 to rotate circumferentially around the roller shaft 5. At this time, the cutting tool 44 is activated, and the circumferential feed assembly 43 drives the cutting tool 44 to slowly approach the roller shaft 5. At this time, the annular cutter holder 42 drives the cutting tool 44 to rotate, forming a planetary centripetal cutting trajectory on the roller shaft 5, realizing precise cutting of the roller shaft 5.

[0031] Example 2, refer to Figure 1 - Figure 4This is the second embodiment of the present invention. Unlike the previous embodiment, it provides a specific structure for the fixed-axis clamping unit 3 in the cutting device for metal roller processing. Compared to embodiment 1, the fixed-axis clamping assembly 33 further includes a support column 331 slidably disposed on the support platform 2, a guide block 332 disposed at the lower end of the support column 331, a movable arm 333 rotatably disposed on the support platform 2, and an abutment wheel 334 disposed at the lower end of the movable arm 333. The support column 331 is used to move up and down in conjunction with the guide block 332. The guide block 332, through its up-and-down movement, drives the movable arm 333 to open or close, thus clamping rollers 5 of different diameters in a fixed-axis manner. The abutment wheel 334, in conjunction with the up-and-down movement of the guide block 332, controls the opening and closing of the movable arm 333.

[0032] The guide block 332 is provided with an inclined surface 3321 that engages with the second abutment wheel 334. With this arrangement, when the guide block 332 moves up and down, the inclined surface 3321 generates a lateral force on the second abutment wheel 334, thereby driving the movable arm 333 to open and close.

[0033] The upper ends of the support column 331 and the movable arm 333 are provided with clamping blocks 34, which are used to cooperate with the support column 331 and the movable arm 333 to clamp the roller shaft 5.

[0034] The support platform 2 is provided with a movable cavity 21 that moves in conjunction with the support column 331, guide block 332 and movable arm 333; the movable cavity 21 is used to accommodate the up and down movement of the support column 331 and guide block 332 and the swing of the lower part of the movable arm 333.

[0035] The movable cavity 21 is provided with a limiting block 22 that cooperates with the support column 331; the limiting block 22 ensures that the support column 331 can only move up and down.

[0036] The movable cavity 21 is provided with a limiting block 23 that cooperates with the guide block 332. The limiting block 23 limits the movement of the guide block 332 and also supports the guide block 332.

[0037] The control component 35 includes a screw 351 threadedly mounted on the bottom of the guide block 332, a fixed wheel 352 mounted on the screw 351 and rotatably connected to the support platform 2, a transmission belt 353 mounted on the fixed wheel 352, an input wheel 354 mounted on the transmission belt 353, and a motor 355 whose output end is fixedly connected to the input wheel 354. The screw 351 rotates and, in conjunction with the limiting block 23, limits the guide block 332, causing it to move up and down. The fixed wheel 352 drives the screw 351 to rotate. The motor 355 drives the input wheel 354 to rotate, which, in conjunction with the transmission belt 353, drives the fixed wheel 352 to rotate, thereby driving the screw 351 to rotate, thus realizing the up and down movement of the guide block 332.

[0038] The rest of the structure is the same as in Example 1.

[0039] In summary, when the roller 5 is adjusted to the appropriate position on the arc-shaped abutment seat 31, the motor 355 starts and drives the input wheel 354 to rotate. At this time, the fixed wheel 352 drives the screw 351 to rotate under the transmission action of the transmission belt 353. At this time, the guide block 332 moves upward through the limiting effect of the limiting block 23. At this time, the support column 331 moves upward in conjunction with the guide block 332. At this time, the clamping block 34 on the support column 331 contacts the roller 5 first and supports the roller 5, causing the roller 5 to leave the contact with the abutment wheel 32. At this time, the guide block 332 moves upward and drives the abutment wheel 334 to move to both sides through the inclined surface 3321. At this time, the movable arm 333 moves closer to the center under the action of the abutment wheel 334, causing the clamping block 34 on the movable arm 333 to contact the roller 5. When the clamping block 34 completely clamps the roller 5, the central axis of the roller 5 is coaxial with the center of the annular knife holder 42.

[0040] Example 3, referring to Figure 1 - Figure 9This is the second embodiment of the present invention. Unlike the previous embodiment, it provides a specific structure for the planetary cutting unit 4 in the cutting device for metal roller processing. Compared to embodiment 2, the cutting support assembly 41 further includes annular fixing frames 411 disposed at both ends of the support platform 2, a connecting plate 412 disposed at the bottom of the annular fixing frames 411 and slidably connected to the support platform 2, multiple sets of adjusting gears 413 rotatably disposed on the base 1, a second fixed wheel 414 disposed on one set of adjusting gears 413, a second input wheel 415 disposed on the base 1 and controlled to rotate by a servo motor, and a second transmission belt 416 disposed on the second input wheel 415 and the second fixed wheel 414; wherein, the annular fixing frame 411 is used to support the annular tool holder 42. The connecting plate 412 drives the annular fixed frame 411 to move back and forth on the support platform 2, thereby adjusting the relative position of the annular cutter holder 42 on the central axis of the roller shaft 5, facilitating cutting by the cutting tool 44. The adjusting gear 413 maintains the stability of the connecting plate 412 during its back and forth movement. The fixed wheel 414 drives the adjusting gear 413 to rotate, thereby controlling the movement of the connecting plate 412 on the support platform 2. The input wheel 415, in conjunction with the servo motor, drives the fixed wheel 414 to rotate via the transmission belt 416, thereby driving the adjusting gear 413 to rotate.

[0041] The connecting plate 412 is provided with a rack 4121 that meshes with the adjusting gear 413. By meshing the adjusting gear 413 with the rack 4121, the rotation of the adjusting gear 413 drives the connecting plate 412 to move back and forth on the support platform 2, thereby adjusting the distance between the ring tool holders 42.

[0042] The circumferential feed assembly 43 includes a gear ring 431 rotatably mounted on the annular tool post 42 and cocentric with the annular tool post 42, an input wheel 432 mounted on the annular tool post 42 and meshing with the gear ring 431, and a motor 433 mounted on the annular tool post 42 and whose output end is fixedly connected to the input wheel 432. The gear ring 431 is used to rotate, and the motor 433 is used to drive the gear ring 431 to rotate through the input wheel 432.

[0043] The circumferential feed assembly 43 further includes a fixing block 434 disposed on the annular tool holder 42, a gear ring 435 rotatably disposed on the fixing block 434 and meshing with the gear ring 431, a screw 436 movably disposed on the fixing block 434 and threadedly engaged with the gear ring 435, and a limiting rod 437 movably disposed on the fixing block 434. The fixing block 434 is used to fix the annular tool holder 42, the gear ring 435 is used to rotate in conjunction with the rotation of the gear ring 431, thereby driving the screw 436 to rotate, and the limiting rod 437, in conjunction with the fixing block 434, limits the movement of the screw 436.

[0044] The cutting tool 44 is provided with a connecting seat 441, which is fixedly connected to the screw 436 and the limiting rod 437. The moving direction of the connecting seat 441 relative to the fixed block 434 intersects and is perpendicular to the central axis of the roller 5 annular cutter holder 42. With this arrangement, when the gear ring 431 rotates, it drives the gear ring 435 to rotate. Through the cooperation between the gear ring 435 and the screw 436, the connecting seat 441 is fed relative to the central axis of the roller 5, thereby driving the cutting tool 44 to cut the roller 5.

[0045] The spacing adjustment assembly 45 includes a motor 451 mounted on the base 1, an input wheel 452 mounted on the output end of the motor 451, a transmission wheel 453 rotatably mounted on the support platform 2 and meshing with the input wheel 452, a limiting shaft 454 mounted on the central axis of the transmission wheel 453, and a bushing 455 movably mounted on the support platform 2 and cooperating with the limiting shaft 454. The motor 451 drives the input wheel 452 to rotate, thereby causing the transmission wheel 453 to rotate. The transmission wheel 453 drives the bushing 455 to rotate through the cooperation of the limiting shaft 454 and the bushing 455. Through the cooperation of the transmission wheel 453 and the bushing 455, when the adjusting gear 413 drives the connecting plate 412 to move back and forth, the bushing 455, in conjunction with the movement of the annular fixing frame 411, maintains transmission with the limiting shaft 454 while moving back and forth on the limiting shaft 454.

[0046] The spacing adjustment assembly 45 further includes a transmission belt 456 disposed on the bushing 455, and a fixed wheel 457 disposed on the transmission belt 456 and rotatably connected to the annular fixed frame 411; wherein the transmission belt 456 is used to cooperate with the bushing 455 to drive the fixed wheel 457 to rotate.

[0047] One end of the bushing 455 is rotatably connected to the annular fixed frame 411. With this arrangement, when the annular fixed frame 411 moves on the support platform 2, it drives the bushing 455 to move synchronously on the limiting shaft 454.

[0048] The fixed wheel 457 is meshed with the ring tool holder 42. With this configuration, when the fixed wheel 457 rotates, it drives the ring tool holder 42 to rotate.

[0049] The rest of the structure is the same as in Example 2.

[0050] In summary, after the clamping block 34 fully clamps the roller 5, the roller 5 and the annular cutter holder 42 remain coaxial. At this time, the adjusting gear 413 drives the annular fixing frame 411 to move back and forth on the support platform 2. Meanwhile, the bushing 455 moves on the limiting shaft 454, adjusting the annular cutter holder 42 to the position to be cut on the roller 5. At this time, the cutting tool 44 is started, and the motor 3 433 drives the gear ring 1 431 to rotate. At this time, the gear ring 2 435 rotates, and through the cooperation of the gear ring 2 435 and the screw 2 436, the cutting tool 44 moves towards the roller 5. As the roller approaches circumferentially, motor 451 starts, driving transmission wheel 453 to rotate via input wheel 452. At this time, limit shaft 454 rotates in conjunction with transmission wheel 453, driving bushing 455 to rotate. Bushing 455 then drives fixed wheel 457 to rotate via transmission belt 456, which in turn drives annular tool holder 42 to rotate. This causes the cutting tool 44, which feeds circumferentially towards roller 5, to rotate around the axis of roller 5, forming planetary cutting and maintaining the perpendicularity between the cutting surface and the central axis of roller 5.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cutting device for processing metal rollers, characterized in that: It includes a base (1), a support platform (2) disposed on the base (1), a fixed-axis clamping unit (3) disposed on the support platform (2), and a planetary cutting unit (4) disposed on the support platform (2). The fixed-axis clamping unit (3) includes an arc-shaped abutment seat (31) disposed on the support platform (2), an abutment wheel (32) disposed on the arc-shaped abutment seat (31), a fixed-axis clamping assembly (33) disposed on the support platform (2), a clamping block (34) disposed on the fixed-axis clamping assembly (33), and a control assembly (35) disposed on the support platform (2) for cooperating with the fixed-axis clamping assembly (33). The planetary cutting unit (4) includes a cutting support assembly (41) disposed at both ends of the support platform (2), an annular tool holder (42) rotatably disposed on the cutting support assembly (41) and having the same center as the cutting support assembly (41), a circumferential feed assembly (43) disposed on the annular tool holder (42), two sets of cutting tools (44) disposed opposite to each other on the annular tool holder (42), and a spacing adjustment assembly (45) disposed on the cutting support assembly (41) for cooperating with the annular tool holder (42).

2. The cutting device for metal roller processing as described in claim 1, characterized in that: The fixed-axis clamping assembly (33) includes a support column (331) slidably disposed on the support platform (2), a guide block (332) disposed at the lower end of the support column (331), a movable arm (333) rotatably disposed on the support platform (2), and an abutment wheel (334) disposed at the lower end of the movable arm (333). The guide block (332) is provided with an inclined surface (3321) that engages with the second abutment wheel (334); The upper ends of the support column (331) and the movable arm (333) are provided with clamping blocks (34).

3. The cutting device for metal roller processing as described in claim 2, characterized in that: The support platform (2) is provided with a movable cavity (21) that moves in conjunction with the support column (331), guide block (332) and movable arm (333); The movable cavity (21) is provided with a limiting block (22) that cooperates with the support column (331); The movable cavity (21) is provided with a limiting block two (23) that cooperates with the guide block (332).

4. The cutting device for metal roller processing as described in claim 3, characterized in that: The control component (35) includes a screw (351) threadedly mounted on the bottom of the guide block (332), a fixed wheel (352) mounted on the screw (351) and rotatably connected to the support platform (2), a transmission belt (353) mounted on the fixed wheel (352), an input wheel (354) mounted on the transmission belt (353), and a motor (355) whose output end is fixedly connected to the input wheel (354).

5. The cutting device for metal roller processing as described in claim 4, characterized in that: The cutting support assembly (41) includes an annular fixing frame (411) disposed at both ends of the support platform (2), a connecting plate (412) disposed at the bottom of the annular fixing frame (411) and slidably connected to the support platform (2), multiple sets of adjusting gears (413) rotatably disposed on the base (1), a second fixed wheel (414) disposed on a set of adjusting gears (413), a second input wheel (415) disposed on the base (1) and controlled to rotate by a servo motor, and a second transmission belt (416) disposed on the second input wheel (415) and the second fixed wheel (414). The connecting plate (412) is provided with a rack (4121) that cooperates with the adjusting gear (413).

6. The cutting device for metal roller processing as described in claim 5, characterized in that: The circumferential feed assembly (43) includes a gear ring 1 (431) rotatably mounted on the ring tool post (42) and co-centered with the ring tool post (42), an input wheel 3 (432) mounted on the ring tool post (42) and meshing with the gear ring 1 (431), and a motor 3 (433) mounted on the ring tool post (42) and whose output end is fixedly connected to the input wheel 3 (432).

7. The cutting device for metal roller processing as described in claim 6, characterized in that: The circumferential feed assembly (43) also includes a fixed block (434) disposed on the annular tool holder (42), a gear ring two (435) rotatably disposed on the fixed block (434) and meshing with the gear ring one (431), a screw two (436) movably disposed on the fixed block (434) and threadedly engaged with the gear ring two (435), and a limiting rod (437) movably disposed on the fixed block (434). The cutting tool (44) is provided with a connecting seat (441). The connecting seat (441) is fixedly connected to the screw (436) and the limiting rod (437). The moving direction of the connecting seat (441) relative to the fixed block (434) intersects and is perpendicular to the central axis of the roller (5) and the ring cutter holder (42).

8. The cutting device for metal roller processing as described in claim 7, characterized in that: The spacing adjustment assembly (45) includes a motor four (451) mounted on the base (1), an input wheel four (452) mounted on the output end of the motor four (451), a transmission wheel (453) rotatably mounted on the support platform (2) and meshing with the input wheel four (452), a limiting shaft (454) mounted on the central shaft of the transmission wheel (453), and a bushing (455) movably mounted on the support platform (2) and cooperating with the limiting shaft (454).

9. The cutting device for metal roller processing as described in claim 8, characterized in that: The pitch adjustment assembly (45) also includes a transmission belt three (456) disposed on the bushing (455) and a fixed wheel three (457) disposed on the transmission belt three (456) and rotatably connected to the annular fixed frame (411). One end of the bushing (455) is rotatably connected to the annular fixed bracket (411); The fixed wheel 3 (457) is engaged with the ring tool holder (42).