Cutting device for frame assembly

Abstract

The invention relates to the technical field of frame assembly cutting, in particular to a cutting device for frame assembly, which comprises a support base and two concentric main rings, the upper end of the support base is fixed with the outer ring surfaces of the two concentric main rings, and the outer ring sides of the two concentric main rings are both provided with linkage rings. The outer ring faces of the two linkage rings are fixed through a plurality of linkage plates, a power structure is fixed to the upper end of the supporting base, the output end of the power structure is connected with the outer ring face of the adjacent linkage ring, and four evenly-distributed clamping structures slidably penetrate through the outer ring face of the concentric main ring. The end, located outside the concentric main ring, of the clamping structure is elastically connected with the concentric main ring. The cutting structure can be pushed to be close to steel placed at the axis of the concentric main ring, so that the cutting structure gradually cuts the steel, the cutting structure is driven to cut around the steel, and the steel can be cut off under the condition that the cutting depth of the cutting structure is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of frame assembly and cutting, in particular to a frame assembly and cutting device. Background Art

[0002] The frame is also called the beam. The base of the car is generally composed of two longitudinal beams and several cross beams, which are supported on the wheels through the suspension device, the front axle and the rear axle. It has sufficient strength and rigidity to withstand the load of the car and the impact from the wheels. The tubular steel of the frame needs to be cut before the frame is assembled. The steel is cut into the required length.

[0003] Chinese patent announcement number CN215317285U discloses a cutting device for a lightweight frame, including a chassis, a first servo motor is provided at the middle end inside the workbench, and three groups of bevel gears are keyed on the output shaft of the first servo motor, one group of the bevel gears is keyed on the output shaft of the first servo motor, and the other two groups of the bevel gears are respectively installed with first screw rods; when the cutting device for a lightweight frame is used, the servo electric cylinder drives the cross plate, the third servo motor and the cutting knife to move downward, and the second servo motor drives the second screw rod to rotate, thereby driving the second slider and the second pulley to move left and right, so that the third servo motor can move left and right, which is convenient for cutting materials of different sizes and thicknesses.

[0004] The above-mentioned related technologies have the following defects: in the prior art, when cutting tubular steel, the cutting device generally cuts directly from one end to the other end, and the cutting wheel has a large cutting depth. When the cutting wheel has a large cutting depth, it is easy to break, which may cause safety hazards. Therefore, a cutting device for frame assembly is proposed. Summary of the invention

[0005] In order to ensure that the cutting wheel will not break due to a large cutting depth of the cutting wheel during cutting, the present invention provides a cutting device for assembling a vehicle frame.

[0006] The present invention provides a cutting device for assembling a frame, which adopts the following technical scheme: it comprises a support base and two concentric main rings, the upper end of the support base is fixed to the outer ring surfaces of the two concentric main rings, the outer ring sides of the two concentric main rings are provided with linkage rings, the outer ring surfaces of the two linkage rings are fixed by a plurality of linkage plates, a power structure is fixed to the upper end of the support base, the output end of the power structure is connected to the outer ring surfaces of adjacent linkage rings, four evenly distributed clamping structures are slidably penetrated through the outer ring surfaces of the concentric main rings, one end of the clamping structure is located outside the concentric main rings and is elastically connected to the concentric main rings, the inner ring surface of each linkage ring is rotatably plugged with two dislocated rings, the outer ring surface of the dislocated ring is damping-connected to the inner ring surface of the adjacent linkage ring, the inner ring surface of each dislocated ring is equidistantly fixed with two curved panels, and one side of the curved panel is provided with a transverse The rod, the cross bar and the material clamping structure are fixed at one end located outside the concentric main ring, and the ends of the two concentric main rings that are close to each other are connected with a swivel in a damped rotation manner. The outer ring surfaces of the two swivels are fixed by two bent frames, and the two bent frames are located between multiple linkage plates and two linkage rings. Two mounting plates are arranged between the two swivels, and the two bent frames are respectively slidably sleeved on the outer surfaces of the two mounting plates, and the cutting structure is installed on the sides of the two mounting plates that are close to each other. The ends of the two bent frames that are away from each other are both rotatably penetrated by an adjusting threaded rod, and the mounting plates are threadedly sleeved on the outer surfaces of adjacent adjusting threaded rods. The end of the adjusting threaded rod located outside the bent frame is elastically rotatably sleeved with a bevel gear, and a bevel gear ring is arranged between the two linkage rings and between multiple linkage plates, the bevel gear is meshed with the bevel gear ring, and the outer ring surface of the bevel gear ring is connected with the adjacent linkage ring in a damped rotation manner.

[0007] Optionally, the power structure includes an electric motor and a driving gear, wherein the driving gear is fixedly sleeved on an output end of the electric motor, a driven gear ring is meshed on one side of the driving gear, and the driven gear ring is coaxially fixed with an adjacent linkage ring.

[0008] Optionally, the material clamping structure includes a through tube and a stress-bent plate, the through tube slidingly passing through the inner annular surface of an adjacent concentric main ring, one end of the through tube located on the inner ring side of the concentric main ring is fixed to the stress-bent plate, the interior of the through tube is connected to the interior of the stress-bent plate, one end of the through tube located outside the concentric main ring is slidingly sleeved with a misaligned disk, one end of the misaligned disk located inside the through tube is fixed with an elastic telescopic rod, the other end of the elastic telescopic rod is fixed to the adjacent stress-bent plate, one end of the misaligned disk located outside the through tube is elastically connected to the outer annular surface of the adjacent concentric main ring, and the misaligned disk is fixed to the adjacent cross bar.

[0009] Optionally, every two adjacent cross bars located on the outer ring side of the same concentric main ring are located on both sides of the through tube, and the four cross bars located on the outer ring side of the same concentric main ring are alternately located on the inner ring sides of two adjacent offset rings.

[0010] Optionally, an air cavity ring is fixed to the outer ring surface of the concentric main ring, and the air cavity ring is slidably sleeved on the outer surface of an adjacent through tube, and an exhaust structure is installed at the lower end of the supporting base, and the bottom surfaces of the two air cavity rings are fixedly connected to the exhaust structure, and an air ring is fixed to the end of the through tube away from the axis of the concentric main ring, and a hose is fixedly connected to the outer ring surface of the air ring, and the inner ring surface of the air ring is open, and the other end of the hose is fixedly connected to the outer ring surface of the adjacent air cavity ring, and a double-headed plugging tube is slidably penetrated at the axis of the air ring, and the through tube is slidably sleeved on the outer surface of the adjacent double-headed plugging tube, and one end of the double-headed plugging tube located inside the through tube is fixed to the adjacent offset disk, and ventilation grooves are provided on the circumferential side surface of one end of the double-headed plugging tube located inside the through tube and the circumferential side surface of the other end of the double-headed plugging tube, and the material of the two ends of the stressed bent plate close to the concentric main ring is elastically deformable, and the two ends of the stressed bent plate close to the concentric main ring have multiple hole structures on one side.

[0011] Optionally, one end of the offset disk located inside the penetration tube is provided with two plate-like structures, a groove-like structure is provided at the connection between the penetration tube and the offset disk, and the plate-like structure of the offset disk is adapted to the groove-like structure of the penetration tube.

[0012] Optionally, a positioning threaded rod is slidably penetrated through one side of the mounting plate away from the axis of the concentric main ring, a positioning block is threadedly sleeved on the outer surface of the positioning threaded rod, the bent frame is slidably sleeved on the outer surface of the positioning block, and the two positioning blocks are located between the two mounting plates.

[0013] Optionally, the outer ring surface of the dislocation ring, the outer ring surface of the bevel gear ring and the inner ring surface of the rotating ring are all annular tooth groove structures, the annular tooth groove structure of the dislocation ring is meshed with multiple elastic plates A, the other end of the elastic plate A is fixed to the linkage ring, the annular tooth groove structure of the bevel gear ring is meshed with multiple elastic plates B, the other end of the elastic plate B is fixed to the adjacent linkage ring, the annular tooth groove structure of the rotating ring is meshed with multiple elastic plates C, the other end of the elastic plate C is fixed to the adjacent concentric main ring.

[0014] Optionally, the elastic hardness of the elastic plate B is greater than the elastic hardness of the elastic plate C, and the extension lines of the elastic plate A, the elastic plate B and the elastic plate C all coincide with the axis of the concentric main ring.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. The present invention arranges a bevel gear ring, a bevel gear, a mounting plate and an adjusting threaded rod, and the steel to be cut passes through two concentric main rings. When the linkage ring rotates, the bevel gear ring is driven to rotate through the damping connection. The damping connection between the concentric main ring and the swivel generates resistance to the rotation of the swivel and the bent frame, so that when the bevel gear ring rotates, it first rotates relative to the bent frame and the bevel gear. The bevel gear drives the adjusting threaded rod to rotate and mesh with the mounting plate through the elastic connection, and pushes the cutting structure to be placed close to the axis of the concentric main ring, so that the cutting structure gradually cuts the steel. When the cutting structure cannot move and continues to rotate, the linkage ring drives the two swivels to rotate relative to the concentric main ring through the bent frame, and drives the cutting structure to cut around the steel. The steel can be cut off while reducing the cutting depth of the cutting structure.

[0017] 2. The present invention arranges dislocation rings, curved plates, cross bars and clamping structures, and places the material to be cut between the clamping structures. When the linkage ring rotates, the two dislocation rings on the outer side of the same concentric main ring rotate with the linkage ring under the damping action of the linkage ring. When the dislocation ring rotates, the curved plates push the cross bars to drive the clamping structures close to the corresponding side of the steel, so that the four clamping structures clamp the four sides of the steel to provide stable support for the steel. At the same time, when it is necessary to clamp rectangular tubes with different widths in the horizontal and vertical surfaces, the two clamping structures contacting the two longer side surfaces of the rectangular tube stop moving first, and the corresponding dislocation rings stop rotating. When the linkage ring rotates, they rotate in a dislocation with the dislocation ring that has stopped rotating, driving the other dislocation ring to continue rotating, and pushing the other two clamping structures to clamp the two narrower side surfaces of the steel. Therefore, when the linkage ring rotates, the two inner dislocation rings can be driven by rotating to different degrees.

[0018] 3. The present invention arranges a double-headed plugging pipe, a ventilation groove and an air cavity ring. The exhaust structure draws air from the air cavity ring through the air cavity ring and the hose. After the cross bar pushes the elastic end of the stressed bent plate to contact the steel through the dislocation disk, the dislocation disk continues to move in the through-tube, pushing the elastic telescopic rod to compress. The dislocation disk pulls the ventilation groove on the surface of the double-headed plugging pipe located on the outside of the through-tube to move into the air ring, so that the air ring provides suction to the through-tube through the ventilation groove and the double-headed plugging pipe, and then the through-tube moves the steel through the hole-like structure at the elastic end of the stressed bent plate, thereby increasing the fixing stability of the steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of the connection between the driving gear and the driven gear ring in an embodiment of the present invention;

[0021] Figure 3 2 is a schematic diagram of the structure of the linkage ring and the driven gear ring connected in an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure in which the air cavity ring is connected to the concentric main ring in an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of a right view of some structures in an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the connection between the bending frame and the swivel in an embodiment of the present invention;

[0025] Figure 7 2 is a schematic diagram of the structure in which the elastic plate C is connected to the concentric main ring in an embodiment of the present invention;

[0026] Figure 8 It is a schematic front view of some structures in an embodiment of the present invention;

[0027] Fig. 9 2 is a schematic diagram of the structure of the elastic telescopic rod connected to the stress-bent plate in an embodiment of the present invention;

[0028] Fig.10 In the embodiment of the present invention Fig. 9 A schematic diagram of the enlarged structure in the middle.

[0029] 1. Support base; 2. Concentric main ring; 3. Linkage ring; 4. Linkage plate; 5. Power structure; 51. Motor; 52. Driving gear; 53. Driven gear ring; 6. Material clamping structure; 61. Force-bearing bent plate; 62. Through-tube; 63. Offset disk; 631. Air cavity ring; 632. Air extraction structure; 633. Air ring; 634. Hose; 635. Double-head plugging pipe; 636. Ventilation groove; 64. Elastic telescopic rod; 7. Offset ring; 8. Cross bar; 9. Curved plate; 10. Bending frame; 11. Swivel; 12. Mounting plate; 121. Positioning threaded rod; 122. Positioning block; 13. Cutting structure; 14. Adjustment threaded rod; 15. Bevel gear; 16. Bevel gear ring; 17. Elastic plate A; 18. Elastic plate B; 19. Elastic plate C. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-10 The present invention is described in further detail.

[0031] The embodiment of the present invention discloses a cutting device for assembling a frame. Figure 1-10 As shown, it includes a support base 1 and two concentric main rings 2. The upper end of the support base 1 is fixed to the outer ring surfaces of the two concentric main rings 2. The outer ring sides of the two concentric main rings 2 are both provided with linkage rings 3. The outer ring surfaces of the two linkage rings 3 are fixed by multiple linkage plates 4.

[0032] A power structure 5 is fixed to the upper end of the support base 1, and the output end of the power structure 5 is connected to the outer ring surface of the adjacent linkage ring 3. The power structure 5 includes a motor 51 and a driving gear 52. The driving gear 52 is fixedly sleeved on the output end of the motor 51. A driven gear ring 53 is meshed on one side of the driving gear 52. The driven gear ring 53 is coaxially fixed with the adjacent linkage ring 3. The motor 51 drives the linkage ring 3 to rotate through the meshing of the driving gear 52 and the driven gear ring 53, and the linkage plate 4 causes the two linkage rings 3 to rotate synchronously.

[0033] The outer ring surface of the concentric main ring 2 is slidably penetrated by four evenly distributed clamping structures 6, and one end of the clamping structure 6 located outside the concentric main ring 2 is elastically connected to the concentric main ring 2, and the inner ring surface of each linkage ring 3 is rotatably plugged with two offset rings 7, and the outer ring surface of the offset ring 7 is damping-connected to the inner ring surface of the adjacent linkage ring 3, and the inner ring surface of each offset ring 7 is equidistantly fixed with two curved panels 9, and a cross bar 8 is provided on one side of the curved panel 9, and the cross bar 8 is fixed to the end of the clamping structure 6 located outside the concentric main ring 2. When the linkage ring 3 rotates, the connected offset ring 7 is driven to rotate through the damping effect, and the curved panel 9 is driven to rotate to push the cross bar 8 close to the axis of the concentric main ring 2.

[0034] The material clamping structure 6 includes a through tube 62 and a stress-bent plate 61. The through tube 62 slides through the inner annular surface of the adjacent concentric main ring 2. One end of the through tube 62 located on the inner annular side of the concentric main ring 2 is fixed to the stress-bent plate 61. The interior of the through tube 62 is connected to the interior of the stress-bent plate 61. One end of the through tube 62 located outside the concentric main ring 2 is slidably sleeved with a misaligned disk 63. One end of the misaligned disk 63 located inside the through tube 62 is fixed with an elastic telescopic rod 64. The other end of the elastic telescopic rod 64 is fixed to the adjacent stress-bent plate 61. One end of the misaligned disk 63 located outside the through tube 62 is elastically connected to the outer annular surface of the adjacent concentric main ring 2. The dislocation disk 63 is fixed to the adjacent cross bar 8, and the elastic telescopic rod 64 has a tendency to push the dislocation disk 63 away from the stressed bent plate 61. When the cross bar 8 approaches the axis of the concentric main ring 2, the stressed bent plate 61 is pushed gradually close to the steel through the elastic telescopic rod 64. After the stressed bent plate 61 contacts the steel, the cross bar 8 continues to drive the dislocation disk 63 to move, gradually compressing the elastic telescopic rod 64. Every two adjacent cross bars 8 located on the outer ring side of the same concentric main ring 2 are respectively located on both sides of the through tube 62, and the four cross bars 8 located on the outer ring side of the same concentric main ring 2 are alternately located on the inner ring sides of two adjacent dislocation rings 7.

[0035] An air cavity ring 631 is fixed to the outer ring surface of the concentric main ring 2, and the air cavity ring 631 is slidably sleeved on the outer surface of the adjacent through-tube 62. An air extraction structure 632 is installed at the lower end of the support base 1. The air extraction structure 632 is a device that can extract air, such as an air pump. The bottom surfaces of the two air cavity rings 631 are fixedly connected to the air extraction structure 632. An air ring 633 is fixed to the end of the through-tube 62 away from the axis of the concentric main ring 2. The outer ring surface of the air ring 633 is fixedly connected to a hose 634. The inner ring surface of the air ring 633 is open, and the hose 634 is connected to the inner ring surface of the air ring 633. The other end of the tube 634 is fixedly connected to the outer ring surface of the adjacent air cavity ring 631, and the air extraction structure 632 extracts air from the inside of the air ring 633 through the air cavity ring 631 and the hose 634, so that the inside of the air ring 633 is negatively pressurized. The end of the offset disk 63 located inside the through tube 62 is provided with two plate-like structures, and a groove-like structure is provided at the connection between the through tube 62 and the offset disk 63. The plate-like structure of the offset disk 63 is adapted to the groove-like structure of the through tube 62, which effectively prevents the pressure inside the through tube 62 from being discharged from the offset disk 63 and the through tube 62. The connection leaks, the axis of the air ring 633 is slidably penetrated by a double-headed plugging tube 635, the through-tube 62 is slidably sleeved on the outer surface of the adjacent double-headed plugging tube 635, one end of the double-headed plugging tube 635 located inside the through-tube 62 is fixed to the adjacent offset disk 63, and the circumferential side surface of one end of the double-headed plugging tube 635 located inside the through-tube 62 and the circumferential side surface of the other end of the double-headed plugging tube 635 are both provided with a venting groove 636, when the offset disk 63 compresses the elastic telescopic rod 64 to move, a venting groove 636 of the double-headed plugging tube 635 is driven 36 gradually enters the air ring 633, so that the vent grooves 636 on both sides of the negative pressure double-head plugging tube 635 in the air ring 633 draw air from the through tube 62 and the stressed bent plate 61. The material of the two ends of the stressed bent plate 61 close to the side of the concentric main ring 2 is elastically deformable, so that the stressed bent plate 61 can fully contact with the steel. The two ends of the stressed bent plate 61 close to the side of the concentric main ring 2 are multiple hole structures. The negative pressure in the stressed bent plate 61 absorbs the contacted steel through its hole structure, thereby improving the stability during clamping.

[0036] The ends of the two concentric main rings 2 that are close to each other are connected to a swivel 11 for damping rotation. The outer ring surfaces of the two swivels 11 are fixed by two bent frames 10. The two bent frames 10 are located between the multiple linkage plates 4 and the two linkage rings 3. Two mounting plates 12 are arranged between the two swivels 11. The two bent frames 10 are respectively slidably sleeved on the outer surfaces of the two mounting plates 12. The two mounting plates 12 are both installed with cutting structures 13 on the sides that are close to each other. The ends of the two bent frames 10 that are away from each other are both rotatably penetrated with an adjusting threaded rod 14. The mounting plates 12 are threadedly sleeved on the adjacent adjusting screws. The outer surface of the threaded rod 14 and the side of the mounting plate 12 away from the axis of the concentric main ring 2 are slidably penetrated by a positioning threaded rod 121, and the outer surface of the positioning threaded rod 121 is threadedly sleeved with a positioning block 122, and the bending frame 10 is slidably sleeved on the outer surface of the positioning block 122. The two positioning blocks 122 are located between the two mounting plates 12, and the positioning threaded rod 121 is rotated to engage with the positioning block 122, and the position of the positioning block 122 in the bending frame 10 is adjusted, thereby controlling the minimum distance between the mounting plate 12 and the axis of the concentric main ring 2 when it moves by engaging with the rotating adjusting threaded rod 14.

[0037] A bevel gear 15 is elastically rotatably sleeved on one end of the adjusting threaded rod 14 located outside the bending frame 10, and a bevel gear ring 16 is arranged between two linkage rings 3 and between multiple linkage plates 4. The bevel gear 15 is meshed with the bevel gear ring 16, and the outer ring surface of the bevel gear ring 16 is connected to the adjacent linkage ring 3 for damping rotation.

[0038] The outer ring surface of the offset ring 7, the outer ring surface of the bevel gear ring 16 and the inner ring surface of the swivel ring 11 are all annular tooth groove structures. The annular tooth groove structure of the offset ring 7 is meshed with a plurality of elastic plates A17, and the other end of the elastic plate A17 is fixed to the linkage ring 3. The annular tooth groove structure of the bevel gear ring 16 is meshed with a plurality of elastic plates B18, and the other end of the elastic plate B18 is fixed to the adjacent linkage ring 3. The annular tooth groove structure of the swivel ring 11 is meshed with a plurality of elastic plates C19, and the other end of the elastic plate C19 is fixed to the adjacent concentric main ring 2.

[0039] The elastic hardness of the elastic plate B18 is greater than the elastic hardness of the elastic plate C19. The extension lines of the elastic plates A17, B18 and C19 all coincide with the axis of the concentric main ring 2. When the linkage ring 3 rotates, the annular tooth groove structure of the bevel gear ring 16 is moved by the elastic plate B18. The elastic plate C19 generates resistance to the rotation of the swivel ring 11. The bevel gear ring 16 first rotates relative to the bending frame 10 and engages with the bevel gear 15, driving the adjusting threaded rod 14 to rotate and engage with the mounting plate 12, gradually pushing the cutting structure 13 to move toward the steel, and stops moving after the mounting plate 12 contacts the positioning block 122. When the linkage ring 3 continues to move the bevel gear ring 16 through the elastic plate B18, the swivel 11 is driven to rotate relative to the concentric main ring 2 through the bending frame 10, so that the elastic plate C19 is gradually elastically bent.

[0040] The working principle is as follows: the steel to be cut is passed through the two concentric main rings 2, and when the linkage ring 3 rotates, the dislocation ring 7 and the bevel gear ring 16 are driven to rotate through the damping connection. When the dislocation ring 7 rotates, the cross bar 8 is pushed by the curved plate 9 to drive the dislocation disk 63 and the stress-bent plate 61 close to the steel, so that the four stress-bent plates 61 on the inner side of a concentric main ring 2 can stably clamp the steel. When the height and width of the clamped steel are different, the two dislocation rings 7 located in the same concentric main ring 2 rotate to different degrees, and the corresponding stress-bent plates 61 clamp the contacted steel surfaces. When the linkage ring 3 rotates, the bevel gear ring 16 is driven to rotate through the damping connection, and the concentric main ring 2 The damping connection between the swivel 11 generates resistance to the rotation of the swivel 11 and the bent frame 10, so that when the bevel gear ring 16 rotates, it first rotates relative to the bent frame 10 and the bevel gear 15. The bevel gear 15 drives the adjusting threaded rod 14 to rotate and engage with the mounting plate 12 through the elastic connection, pushing the cutting structure 13 to approach the steel placed at the axis of the concentric main ring 2, so that the cutting structure 13 gradually cuts the steel. When the cutting structure 13 cannot continue to rotate after the linkage ring 3 moves, the two swivels 11 are driven to rotate relative to the concentric main ring 2 through the bent frame 10, so that the cutting structure 13 cuts around the steel, and the cutting depth of the cutting structure 13 is reduced to complete the cutting process of the steel.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for assembling a vehicle frame, comprising a support base (1) and two concentric main rings (2), characterized in that: The upper end of the support base (1) is fixed to the outer ring surfaces of the two concentric main rings (2), and the outer ring sides of the two concentric main rings (2) are both provided with linkage rings (3). The outer ring surfaces of the two linkage rings (3) are fixed by a plurality of linkage plates (4). A power structure (5) is fixed to the upper end of the support base (1), and the output end of the power structure (5) is connected to the outer ring surface of the adjacent linkage ring (3). The outer ring surface of the concentric main ring (2) is slidably penetrated by four evenly distributed clamping structures (6), and the clamping structures (6) are located One end outside the concentric main ring (2) is elastically connected to the concentric main ring (2); the inner ring surface of each linkage ring (3) is rotatably plugged with two offset rings (7); the outer ring surface of the offset ring (7) is damping-connected with the inner ring surface of the adjacent linkage ring (3); the inner ring surface of each offset ring (7) is equidistantly fixed with two curved plates (9); a cross bar (8) is provided on one side of the curved plate (9); the cross bar (8) is fixed to one end of the clamping structure (6) located outside the concentric main ring (2); the two concentric main rings (2) are connected to each other. One end close to each other is connected to a swivel ring (11) for damping rotation. The outer ring surfaces of the two swivel rings (11) are fixed by two bent frames (10). The two bent frames (10) are located between the plurality of linkage plates (4) and the two linkage rings (3). Two mounting plates (12) are arranged between the two swivel rings (11). The two bent frames (10) are respectively slidably sleeved on the outer surfaces of the two mounting plates (12). The two mounting plates (12) are both installed with a cutting structure (13) on the sides close to each other. The two bent frames (10) are mutually The ends away from each other are rotatably penetrated by an adjusting threaded rod (14); the mounting plate (12) is threadedly sleeved on the outer surface of an adjacent adjusting threaded rod (14); one end of the adjusting threaded rod (14) located outside the bent frame (10) is elastically rotatably sleeved with a bevel gear (15); a bevel gear ring (16) is provided between two linkage rings (3) and between a plurality of linkage plates (4); the bevel gear (15) is meshed with the bevel gear ring (16); and the outer ring surface of the bevel gear ring (16) is connected to the adjacent linkage ring (3) in a damped rotation manner.

2. A frame assembly cutting device according to claim 1, characterized in that: The power structure (5) comprises an electric motor (51) and a driving gear (52), wherein the driving gear (52) is fixedly sleeved on the output end of the electric motor (51), a driven gear ring (53) is meshed on one side of the driving gear (52), and the driven gear ring (53) is coaxially fixed with an adjacent linkage ring (3).

3. A frame assembly cutting device according to claim 1, characterized in that: The material clamping structure (6) comprises a through tube (62) and a stress-bent plate (61). The through tube (62) slides through the inner annular surface of the adjacent concentric main ring (2). One end of the through tube (62) located on the inner annular side of the concentric main ring (2) is fixed to the stress-bent plate (61). The interior of the through tube (62) is connected to the interior of the stress-bent plate (61). One end of the through tube (62) located outside the concentric main ring (2) is slidably sleeved with a dislocation disk (63). One end of the dislocation disk (63) located inside the through tube (62) is fixed with an elastic telescopic rod (64). The other end of the elastic telescopic rod (64) is fixed to the adjacent stress-bent plate (61). One end of the dislocation disk (63) located outside the through tube (62) is elastically connected to the outer annular surface of the adjacent concentric main ring (2). The dislocation disk (63) is fixed to the adjacent cross bar (8).

4. A cutting device for assembling a frame according to claim 3, characterized in that: Each two adjacent cross bars (8) located on the outer ring side of the same concentric main ring (2) are located on both sides of the through tube (62), and the four cross bars (8) located on the outer ring side of the same concentric main ring (2) are alternately located on the inner ring sides of two adjacent offset rings (7).

5. A cutting device for assembling a frame according to claim 3, characterized in that: The outer ring surface of the concentric main ring (2) is fixed with an air cavity ring (631), and the air cavity ring (631) is slidably sleeved on the outer surface of the adjacent through tube (62). The lower end of the support base (1) is installed with an exhaust structure (632), and the bottom surfaces of the two air cavity rings (631) are fixedly connected with the exhaust structure (632). An air ring (633) is fixed at one end of the through tube (62) away from the axis of the concentric main ring (2), and the outer ring surface of the air ring (633) is fixedly connected with a hose (634). The inner ring surface of the air ring (633) is open, and the other end of the hose (634) is fixedly connected with the outer ring surface of the adjacent air cavity ring (631). A double-ended plugging tube (635) is slidably inserted through the axis of (633), and the through-tube (62) is slidably sleeved on the outer surface of the adjacent double-ended plugging tube (635). One end of the double-ended plugging tube (635) located inside the through-tube (62) is fixed to the adjacent offset disk (63). A ventilation groove (636) is provided on the circumferential side surface of one end of the double-ended plugging tube (635) located inside the through-tube (62) and the circumferential side surface of the other end of the double-ended plugging tube (635). The material of the two ends of the stress-bending plate (61) close to the concentric main ring (2) is elastically deformable, and the two ends of the stress-bending plate (61) close to the concentric main ring (2) are multiple hole-like structures.

6. A frame assembly cutting device according to claim 5, characterized in that: The end of the dislocation disk (63) located inside the penetration tube (62) is provided with two plate-like structures, and a groove-like structure is provided at the connection between the penetration tube (62) and the dislocation disk (63). The plate-like structure of the dislocation disk (63) is adapted to the groove-like structure of the penetration tube (62).

7. A cutting device for assembling a frame according to claim 1, characterized in that: A positioning threaded rod (121) is slidably penetrated through a side of the mounting plate (12) away from the axis of the concentric main ring (2); a positioning block (122) is threadedly sleeved on the outer surface of the positioning threaded rod (121); the bending frame (10) is slidably sleeved on the outer surface of the positioning block (122); and the two positioning blocks (122) are located between the two mounting plates (12).

8. A frame assembly cutting device according to claim 1, characterized in that: The outer ring surface of the dislocation ring (7), the outer ring surface of the bevel gear ring (16) and the inner ring surface of the rotating ring (11) are all annular tooth groove structures. The annular tooth groove structure of the dislocation ring (7) is meshed with a plurality of elastic plates A (17), and the other end of the elastic plate A (17) is fixed to the linkage ring (3). The annular tooth groove structure of the bevel gear ring (16) is meshed with a plurality of elastic plates B (18), and the other end of the elastic plate B (18) is fixed to the adjacent linkage ring (3). The annular tooth groove structure of the rotating ring (11) is meshed with a plurality of elastic plates C (19), and the other end of the elastic plate C (19) is fixed to the adjacent concentric main ring (2).

9. A cutting device for assembling a frame according to claim 8, characterized in that: The elastic hardness of the elastic plate B (18) is greater than the elastic hardness of the elastic plate C (19), and the extension lines of the elastic plate A (17), the elastic plate B (18) and the elastic plate C (19) all coincide with the axis of the concentric main ring (2).

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