Cutting machining device for machining special-shaped workpiece

By designing a cutting processing device including double guide frames, sliding frames, T-frames and positioning frames, the problem of lack of automatic rotation and circumferential displacement control in the prior art is solved, and stable and precise cutting processing outside the special-shaped workpiece is achieved.

CN119973668APending Publication Date: 2025-05-13苏州福丰联合电子有限公司
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Patent Information

Application Number
CN202510320404.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The existing cutting and machining devices lack a bidirectional movement control structure with automatic rotation and circumferential displacement, resulting in inconvenient machining external to the special-shaped workpiece and unstable combined structure.

Method used

A cutting and processing device including dual guide frames, sliding frames, T-frames, positioning frames and other components is designed. The two-way movement control of automatic rotation and circumferential displacement is achieved through mechanical structures such as lead screws, hexagonal synchronous rods, worm gears and worms, and stable fixation is achieved through the air compressor connection of the positioning frame.

Benefits of technology

It realizes stable and precise cutting processing outside the special-shaped workpiece, provides convenient rotation and circumferential movement capabilities, and improves the accuracy and efficiency of processing.

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Abstract

The invention provides a cutting machining device for machining special-shaped workpieces, and relates to the technical field of cutting machining, the cutting machining device comprises a double guide frame, a main body of the double guide frame is of a concave frame structure, a clamping plate A is fixedly arranged on the left side of the double guide frame, and a clamping plate B is fixedly arranged on the right side of the double guide frame; a lead screw is rotationally arranged between the clamping plate A and the clamping plate B. A servo motor A is arranged outside the clamping plate A and is in transmission connection with the lead screw. According to the lead screw and the hexagonal synchronous rod of each embodiment of the invention, a bidirectional movement control structure capable of automatically rotating and circumferentially displacing is provided, the servo motor A is started to drive the lead screw to rotate, the lead screw pushes the cutter frame to move through thread transmission so as to finish adjustment, and the servo motor B is started to drive the whole device to move outside a workpiece; and circumferential cutting adjustment is achieved, convenience is provided for cutting, control is convenient and accurate, and the problem that an existing machining device lacks a bidirectional movement control structure capable of automatically rotating and circumferentially displacing after being combined is solved.
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Description

Technical Field

[0001] The invention relates to the technical field of cutting processing, and in particular to a cutting processing device for processing special-shaped workpieces. Background Art

[0002] When manufacturing or modifying a special-shaped structure with a cylindrical main body and branches, cutting processing is often performed on the outside of the tubular part of the structure formed after welding, cutting assembly grooves or curved grooves, and the workpiece is inconvenient to rotate after welding, so it is necessary to directly rotate the outside of the workpiece.

[0003] However, the processing devices currently used lack a bidirectional movement control structure that can automatically rotate and displace circumferentially after assembly, as well as a corresponding combination structure that can be assembled quickly without affecting cutting, which is not conducive to ensuring that the processing device can be stably installed on the outside of a cylindrical workpiece for processing. Summary of the invention

[0004] In view of this, the present invention provides a cutting processing device for processing special-shaped workpieces, which has a sliding frame that can slide to select a position to fix the workpiece and can adjust the installation position according to the length of the workpiece and the cutting length, providing convenience for cutting.

[0005] The present invention provides a cutting processing device for processing special-shaped workpieces, specifically comprising: a double guide frame, the main body of the double guide frame is a concave frame structure, a clamping plate A is fixedly arranged on the left side of the double guide frame, and a clamping plate B is fixedly arranged on the right side of the double guide frame; a lead screw is rotatably arranged between the clamping plates A and B, and a servo motor A is arranged outside the clamping plate A and is connected to the lead screw for transmission; a cutting tool holder, the front end of which is slidably arranged in the middle of the rear side of the double guide frame; the upper and lower ends of the rear side of the double guide frame are guide strip structures; a sliding frame, which is slidably arranged outside the front side of the double guide frame, the number of sliding frames is two groups, and the left sliding frame is fixedly connected to the clamping plate A; the rear of the sliding frame A connecting shaft is rotatably arranged on the side matching bearing; a T-shaped frame, the front side of the T-shaped frame is rotatably arranged on the outside of the connecting shaft; a retaining frame, the retaining frame is fixedly arranged on both sides of the T-shaped frame, and the rear side of the retaining frame is arranged as a forked structure, and two groups of guide wheels are rotatably arranged on the upper and lower ends of the forked structure; a positioning frame, the main body of the positioning frame is a semicircular structure, a climbing gear ring is arranged in the middle of the crooked arc of the positioning frame, and flanges are integrally arranged in the middle of both sides of the positioning frame; two adjacent groups of guide wheels are fitted on the outside of the flange; there are four groups of positioning frames in total, and the positioning frames are all hollow structures, and steel wire hoses are arranged on the inner sides of the four groups of positioning frames for communication, and an interface is arranged at one end of the steel wire hose to connect the air compressor.

[0006] Optionally, the double guide frame also includes: a hexagonal synchronization rod, a hexagonal synchronization rod is rotatably arranged at the bottom of the clamping plate B, and a worm gear is fixedly arranged at the right end of the hexagonal synchronization rod; a servo motor B, a servo motor B is fixedly arranged on the right side of the clamping plate B, a worm gear is fixedly arranged outside the rotating shaft of the servo motor B, and the worm gear is transmission-connected to the worm gear.

[0007] Optionally, the knife sharpener rack includes: an electric cylinder, the rear end of the knife sharpener rack is a frame structure, an electric cylinder is fixedly arranged in the middle of the rear side of the knife sharpener rack, a push seat is fixedly arranged at the telescopic end of the electric cylinder, and an electric knife is fixedly arranged at the rear end of the push seat; the push seat is slidably connected to the knife sharpener rack.

[0008] Optionally, the slide frame further comprises: a rotating sleeve, which is rotatably arranged at the lower rear side of the slide frame, and the rotating sleeve is connected to the connecting shaft by a bevel gear transmission; and a hexagonal synchronization rod fits through the two sets of rotating sleeves.

[0009] Optionally, the T-shaped frame includes: a linkage shaft, a linkage shaft is rotatably arranged in the middle of the T-shaped frame, and the linkage shaft is connected to the connecting shaft by a bevel gear; a driven shaft A, a driven shaft A is rotatably arranged in the middle of the rear side of the T-shaped frame, and one end of the driven shaft A is connected to the linkage shaft by a bevel gear; a driven shaft B, a driven shaft B is rotatably arranged at the rear side of the T-shaped frame, and cylindrical gears are arranged at both ends of the driven shaft B, a cylindrical gear is arranged at one end of the driven shaft A and meshes with a cylindrical gear on one side of the driven shaft B; the cylindrical gears at both ends of the driven shaft B mesh with the creeping gear ring.

[0010] Optionally, the positioning frame further comprises: fixed pistons, two rows of fixed pistons are connected to the inner side of the positioning frame, each row of fixed pistons has two groups, and the fixed pistons pass through the interior of the positioning frame and are connected to the steel wire hose.

[0011] Optionally, the positioning frame also includes: a docking seat, which is integrally provided on the outer sides of both ends of the positioning frame; a rotating screw, which is hingedly provided in the middle of the docking seat on one side; a threaded sleeve is provided on the outside of the rotating screw through a threaded connection, and a rotating support rod is rotatably provided outside the threaded sleeve; and a pin-shaped docking structure is provided on the splicing surfaces of the two sets of positioning frames.

[0012] Optionally, the middle of the rotating arm is a round frame structure, the two sides of the rotating arm are plate-circle structures, and the outside of the docking seat on the other side is provided with a round groove that matches the round rod structure.

[0013] Beneficial Effects The lead screw and hexagonal synchronous rod according to the embodiments of the present invention provide a bidirectional movable control structure capable of automatic rotation and circumferential displacement. The servo motor A is started to drive the lead screw to rotate, and the lead screw pushes the cutting tool holder to move through the threaded transmission to complete the adjustment. The servo motor B is started to drive the worm, worm wheel, hexagonal synchronous rod, rotating sleeve, connecting shaft, linkage shaft, driven shaft A and driven shaft B to rotate. The gear meshing climbing gear ring outside the driven shaft B rotates to generate the traveling ability, driving the device as a whole to move outside the workpiece to realize circumferential cutting adjustment. The rotation amplitude can exceed one circle, which provides convenience for cutting and convenient and precise control.

[0014] In addition, the setting of the positioning frame provides a convenient splicing function. The four groups of positioning frames are buckled on the outside of the workpiece, and the threaded sleeve is tightened to cooperate with the turning arm to contact and lock the docking seat on the other side to complete the fixation. The positioning frame is connected to the air compressor or air pump to input air, and each group of positioning frames is spread open for adaptive clamping. The position of the positioning frame is fixed on the outside of the workpiece through self-locking fixation, and will not affect the rotation and movement of the sliding frame and the T-shaped frame.

[0015] In addition, the hexagonal synchronization rod drives the rotating sleeve to rotate and maintain the effect of circumferential transmission during axial movement, ensuring two-way control. At the same time, the worm wheel and worm can be self-locking, which can achieve the fixed position of the specific position of the slide frame, with strong stability and increased cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown; Figure 2 It shows an axonometric structural schematic diagram according to an embodiment of the present invention; Figure 3 A schematic diagram of a side bottom view structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the three-dimensional structure of a double guide frame according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the assembly structure of a slide frame according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the connection structure of a positioning frame according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the three-dimensional structure of a positioning frame according to an embodiment of the present invention is shown; Figure 8 The embodiment according to the present invention is shown Figure 3 A is a schematic diagram of a local enlarged structure.

[0019] Reference numerals list 1. Double guide frame; 101. Pallet A; 102. Pallet B; 103. Lead screw; 104. Servo motor A; 105. Hexagonal synchronization rod; 106. Worm gear; 107. Servo motor B; 108. Worm; 2. Cutting tool holder; 201. Electric cylinder; 202. Push seat; 203. Electric cutter; 3. Sliding frame; 301. Rotating sleeve; 302. Connecting shaft; 4. T-shaped frame; 401. Linkage shaft; 402. Driven shaft A; 403. Driven shaft B; 5. Cage; 501. Guide wheel; 6. Positioning frame; 601. Climbing gear ring; 602. Flange; 603. Fixed piston; 604. Docking seat; 605. Rotating screw; 606. Threaded sleeve; 607. Rotating support rod; 7. Wire hose. DETAILED DESCRIPTION

[0020] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0021] Example: Please refer to Figures 1 to 8 : The present invention proposes a cutting processing device for processing special-shaped workpieces, comprising: a double guide frame 1, the main body of the double guide frame 1 is a concave frame structure, a clamping plate A101 is fixedly arranged on the left side of the double guide frame 1, and a clamping plate B102 is fixedly arranged on the right side of the double guide frame 1; a lead screw 103 is rotatably arranged between the clamping plates A101 and B102, and a servo motor A104 is arranged outside the clamping plate A101 and is transmission-connected to the lead screw 103; a cutting tool holder 2, the front end of the cutting tool holder 2 is slidably arranged in the middle of the rear side of the double guide frame 1; the upper and lower ends of the rear side of the double guide frame 1 are guide strip structures; a sliding frame 3, the sliding frame 3 is slidably arranged outside the front side of the double guide frame 1, the number of the sliding frames 3 is two groups, and the left sliding frame 3 is fixedly connected to the clamping plate A101; the sliding frame 3 The rear side of the T-shaped frame 4 is rotatably provided with a connecting shaft 302; the T-shaped frame 4, the front side of the T-shaped frame 4 is rotatably provided on the outside of the connecting shaft 302; the retaining frame 5, the retaining frame 5 is fixedly provided on both sides of the T-shaped frame 4, and the rear side of the retaining frame 5 is provided with a forked structure, and two groups of guide wheels 501 are rotatably provided on the upper and lower ends of the forked structure; the positioning frame 6, the main body of the positioning frame 6 is a semicircular structure, a creeping gear ring 601 is provided in the middle of the crooked arc of the positioning frame 6, and flanges 602 are integrally provided in the middle of the two sides of the positioning frame 6; two adjacent groups of guide wheels 501 are fitted on the outside of the flange 602; there are four groups of positioning frames 6, all of which are hollow structures, and steel wire hoses 7 are provided on the inner sides of the four groups of positioning frames 6 for communication, and an interface is provided at one end of the steel wire hose 7 for connecting to the air compressor.

[0022] In addition, according to an embodiment of the present invention, reference Figure 8 The double guide frame 1 also includes: a hexagonal synchronization rod 105, a hexagonal synchronization rod 105 is rotatably arranged at the bottom of the clamping plate B102, and a worm gear 106 is fixedly arranged at the right end of the hexagonal synchronization rod 105; a servo motor B107, a servo motor B107 is fixedly arranged on the right side of the clamping plate B102, a worm 108 is fixedly arranged outside the rotating shaft of the servo motor B107, and the worm 108 is transmission-connected to the worm gear 106, and a self-locking function is provided at the same time.

[0023] In addition, according to an embodiment of the present invention, reference Figure 1 The knife rack 2 includes: an electric cylinder 201, the rear end of the knife rack 2 is a frame structure, the electric cylinder 201 is fixedly arranged in the middle of the rear side of the knife rack 2, the telescopic end of the electric cylinder 201 is fixedly arranged with a push seat 202, and the rear end of the push seat 202 is fixedly arranged with an electric knife 203; the push seat 202 is slidably connected to the knife rack 2, and cooperates with the electric cylinder 201 to push the electric knife 203 for cutting.

[0024] In addition, according to an embodiment of the present invention, reference Figure 5The sliding frame 3 also includes: a rotating sleeve 301, a rotating sleeve 301 is rotatably arranged at the lower rear side of the sliding frame 3, and the rotating sleeve 301 is connected to the connecting shaft 302 by a bevel gear transmission; the hexagonal synchronization rod 105 fits through the two sets of rotating sleeves 301, and the hexagonal synchronization rod 105 drives the rotating sleeve 301 to rotate and can maintain the effect of circumferential transmission during axial movement.

[0025] In addition, according to an embodiment of the present invention, reference Figure 5 The T-shaped frame 4 includes: a linkage shaft 401, a linkage shaft 401 is rotatably provided in the middle of the T-shaped frame 4, and the linkage shaft 401 is connected to the connecting shaft 302 by a bevel gear transmission; a driven shaft A402, a driven shaft A402 is rotatably provided in the middle of the rear side of the T-shaped frame 4, and one end of the driven shaft A402 is connected to the linkage shaft 401 by a bevel gear transmission; a driven shaft B403, a driven shaft B403 is rotatably provided at the rear side of the T-shaped frame 4, and cylindrical gears are provided at both ends of the driven shaft B403, and a cylindrical gear is provided at one end of the driven shaft A402 to mesh with a cylindrical gear on one side of the driven shaft B403; the cylindrical gears at both ends of the driven shaft B403 are meshed with the creeping gear ring 601, and can move circumferentially quickly and automatically.

[0026] In addition, according to an embodiment of the present invention, reference Figure 6 The positioning frame 6 also includes: a fixed piston 603. Two rows of fixed pistons 603 are connected to the inner side of the positioning frame 6. There are two groups of fixed pistons 603 in each row. The fixed pistons 603 pass through the interior of the positioning frame 6 and are connected to the steel wire hose 7. The steel wire hose 7 is connected to the air compressor to input air to stretch the steel wire hose 7 for fixed clamping.

[0027] In addition, according to an embodiment of the present invention, reference Figure 7 The positioning frame 6 also includes: a docking seat 604, and the outer sides of both ends of the positioning frame 6 are integrally provided with a docking seat 604; a rotating screw 605, and a rotating screw 605 is hingedly provided in the middle of the docking seat 604 on one side; a threaded sleeve 606 is provided on the outside of the rotating screw 605 through a threaded connection, and a rotating support rod 607 is rotatably provided outside the threaded sleeve 606; the splicing surfaces of the two groups of positioning frames 6 are provided with a pin-shaped docking structure; the middle of the rotating support rod 607 is a round frame structure, and the two sides of the rotating support rod 607 are plate-circular structures, and the outside of the docking seat 604 on the other side is provided with a round groove that matches the round rod structure, and the threaded sleeve 606 is used to lock the rotating support rod 607 to achieve a fixed connection between the two groups of positioning frames 6.

[0028] Specific usage and function of this embodiment: In the present invention, when in use, it is preset that the retaining frame 5 and the guide wheel 501 are slidably installed on the outside of a positioning frame 6, and then four groups of positioning frames 6 are buckled on the outside of the workpiece, and the threaded sleeve 606 is tightened to cooperate with the rotating support rod 607 to contact and lock the docking seat 604 on the other side to complete the fixation, and the positioning frame 6 is connected to the air compressor or air pump to input air, and each group of positioning frames 6 is stretched open for adaptive clamping, and the position of the positioning frame 6 is fixed on the outside of the cylindrical structure by self-locking fixation.

[0029] When the position of the cutter holder 2 needs to be adjusted, the servo motor A104 is started to drive the screw 103 to rotate. The screw 103 pushes the cutter holder 2 to move through the threaded transmission to complete the adjustment. When cutting, the cutter holder 2 is directly started to push the push seat 202 and the electric cutter 203 to perform the cutting operation.

[0030] When the circumferential angle of the cutting tool holder 2 needs to be adjusted, the servo motor B107 is started to drive the worm 108 to rotate, the worm 108 drives the worm wheel 106 and the hexagonal synchronous rod 105 to rotate, the hexagonal synchronous rod 105 drives the two sets of rotating sleeves 301 to rotate at the same time, the rotating sleeve 301 cooperates with the bevel gear to drive the connecting shaft 302 to rotate, the connecting shaft 302 drives the linkage shaft 401 to rotate through the bevel gear, the linkage shaft 401 drives the driven shaft A402 to rotate through the bevel gear, the driven shaft A402 cooperates with the gear to drive the driven shaft B403 to rotate, the guide wheel 501 fits the flange 602 to ensure that the gear outside the driven shaft B403 meshes with the creeping gear ring 601 to rotate to generate the traveling ability, and drives the device as a whole to move outside the workpiece, so as to realize circumferential cutting adjustment, and the rotation amplitude can exceed one circle, which provides convenience for cutting.

[0031] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0032] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A cutting device for machining special-shaped workpieces, characterized in that: include: A double guide frame (1), wherein the main body of the double guide frame (1) is a concave frame structure, a card plate A (101) is fixedly arranged on the left side of the double guide frame (1), and a card plate B (102) is fixedly arranged on the right side of the double guide frame (1); a lead screw (103) is rotatably arranged between the card plate A (101) and the card plate B (102), and a servo motor A (104) is arranged outside the card plate A (101) and is transmission-connected to the lead screw (103); a cutter frame (2), wherein the front end of the cutter frame (2) is slidably arranged in the middle of the rear side of the double guide frame (1); the upper and lower ends of the rear side of the double guide frame (1) are guide strip structures; a slide frame (3), wherein the slide frame (3) is slidably arranged outside the front side of the double guide frame (1), and the number of the slide frames (3) is two groups, and the left slide frame (3) is fixedly connected to the card plate A (101); the rear side of the slide frame (3) A connecting shaft (302) is rotatably arranged in cooperation with the bearing; a T-shaped frame (4), the front side of the T-shaped frame (4) being rotatably arranged outside the connecting shaft (302); a retaining frame (5), the retaining frame (5) being fixedly arranged on both sides of the T-shaped frame (4), the rear side of the retaining frame (5) being arranged as a forked structure, and two groups of guide wheels (501) are rotatably arranged at the upper and lower ends of the forked structure; a positioning frame (6), the main body of the positioning frame (6) being a semicircular structure, a creeping gear ring (601) being arranged in the middle of the deflected arc of the positioning frame (6), and flanges (602) being integrally arranged in the middle of both sides of the positioning frame (6); two adjacent groups of guide wheels (501) are fitted and arranged outside the flanges (602); there are four groups of positioning frames (6), all of which are hollow structures, and steel hoses (7) are arranged inside the four groups of positioning frames (6) for communication.

2. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The double guide frame (1) further comprises: A hexagonal synchronization rod (105), the bottom of the card plate B (102) is rotatably provided with the hexagonal synchronization rod (105), and the right end of the hexagonal synchronization rod (105) is fixedly provided with a worm gear (106); A servo motor B (107) is fixedly arranged on the right side of the card plate B (102), a worm (108) is fixedly arranged outside the rotating shaft of the servo motor B (107), and the worm (108) is drivingly connected to the worm wheel (106).

3. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The knife sharpening frame (2) comprises: The electric cylinder (201) and the rear end of the knife sharpening frame (2) are of a frame structure; the electric cylinder (201) is fixedly arranged in the middle of the rear side of the knife sharpening frame (2); a push seat (202) is fixedly arranged at the telescopic end of the electric cylinder (201); and an electric knife sharpening frame (203) is fixedly arranged at the rear end of the push seat (202); the push seat (202) is slidably connected to the knife sharpening frame (2).

4. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The sliding frame (3) further comprises: A rotating sleeve (301) is rotatably provided at the lower rear side of the slide frame (3), and the rotating sleeve (301) is connected to the connecting shaft (302) by a bevel gear transmission; a hexagonal synchronization rod (105) fits through the two sets of rotating sleeves (301).

5. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The T-shaped frame (4) comprises: A linkage shaft (401), wherein the middle of the T-shaped frame (4) is provided with a linkage shaft (401) for rotation, and the linkage shaft (401) is connected to the connecting shaft (302) by a bevel gear transmission; A driven shaft A (402) is rotatably arranged in the middle of the rear side of the T-shaped frame (4), and one end of the driven shaft A (402) is connected to the linkage shaft (401) by a bevel gear transmission; A driven shaft B (403) is rotatably provided on the rear side of the T-shaped frame (4), and cylindrical gears are provided at both ends of the driven shaft B (403). A cylindrical gear is provided at one end of the driven shaft A (402) and meshes with a cylindrical gear on one side of the driven shaft B (403); and the cylindrical gears at both ends of the driven shaft B (403) mesh with a creeping gear ring (601).

6. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The positioning frame (6) also includes: The fixed pistons (603) are connected to the inner side of the positioning frame (6) and are provided with two rows of fixed pistons (603). Each row of fixed pistons (603) has two groups. The fixed pistons (603) pass through the interior of the positioning frame (6) and are in communication with the steel wire hose (7).

7. A cutting device for machining special-shaped workpieces as claimed in claim 1, characterized in that: The positioning frame (6) also includes: Docking seats (604), with docking seats (604) being integrally provided on the outer sides of both ends of the positioning frame (6); A rotating screw rod (605) is hingedly provided in the middle of a docking seat (604) on one side; a threaded sleeve (606) is provided on the outside of the rotating screw rod (605) through a threaded connection, and a rotating support rod (607) is rotatably provided outside the threaded sleeve (606); and a pin-shaped docking structure is provided on the joint surfaces of the two sets of positioning frames (6).

8. A cutting device for machining special-shaped workpieces as claimed in claim 7, characterized in that: The middle of the rotating support rod (607) is a round frame structure, the two sides of the rotating support rod (607) are plate-circular structures, and the outside of the docking seat (604) on the other side is provided with a round groove that matches the round rod structure.