Cutting device for an aluminum alloy frame tube and cutting method thereof

Abstract

This invention relates to the field of cutting technology, specifically to a cutting device and method for aluminum alloy vehicle frame tubes. The device includes a base, on the top of which is mounted a saw blade cutting assembly for cutting the workpiece. Adjustment seats are symmetrically arranged on both sides of the saw blade cutting assembly. A mover for driving the two adjustment seats is installed on the base. A support unit for supporting the workpiece is installed on the top of the base. At least one set of clamping and rotating assemblies is provided on the side of each of the two adjustment seats that are close together. Each set of clamping and rotating assemblies includes two first arc-shaped plates, and a second arc-shaped plate is provided on the side of each of the two first arc-shaped plates that are close together. Two second prisms penetrate both the first and second arc-shaped plates. This device can clamp and fix both ends of the aluminum alloy vehicle frame tube, eliminating the need for workers to hold the tube, thus improving safety. It can also perform circumferential cutting on multiple aluminum alloy vehicle frame tubes, improving cutting efficiency.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and in particular to a cutting device and method for aluminum alloy vehicle frame tubes. Background Technology

[0002] Aluminum alloy is an alloy with aluminum as the base and a certain amount of other alloying elements added. An aluminum alloy frame is made by welding multiple aluminum alloy tubes together. According to the assembly requirements, the aluminum alloy tubes need to be cut into different lengths by a cutting device.

[0003] A search of existing technologies revealed that Chinese patent CN116038027A discloses a cutting fixture for the production of aluminum alloy vehicle frames. With the assistance of a limiting block, the operator can slowly move the aluminum alloy rod horizontally in the direction of the rotating saw blade to perform the cutting operation.

[0004] However, it is worth considering that the worker needs to hold one end of the aluminum alloy tube and drive it toward the saw blade. Since the worker does not hold both ends of the aluminum alloy tube at the same time, there is a risk that the part of the aluminum alloy tube that the worker is not holding may be carried away by the rotating saw blade after the cutting is completed. If the worker holds both ends of the aluminum alloy tube at the same time, the worker is closer to the saw blade, which poses a certain danger.

[0005] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide a cutting device and method for aluminum alloy vehicle frame tubes, so as to solve the problem that the aluminum alloy tubes not held by the operator may be carried away by the rotating saw blade, and that if the operator holds both ends of the aluminum alloy tube at the same time, the distance between the operator and the saw blade is relatively close.

[0007] To achieve the above objectives, the present invention provides a cutting device for aluminum alloy vehicle frame tubes, including a base, a saw blade cutting assembly for cutting the workpiece is mounted on the top of the base, adjusting seats are symmetrically arranged on both sides of the saw blade cutting assembly, a mover for driving the two adjusting seats to move is mounted on the base, a support unit for supporting the workpiece is mounted on the top of the base, and at least one set of clamping and rotating components is provided on the side of the two adjusting seats that are close to each other. Each set of clamping and rotating components includes two first arc-shaped plates, and a second arc-shaped plate is provided on the side of the two first arc-shaped plates that are close to each other. Two second prisms pass through each of the first and second arc-shaped plates. Each of the first and second arc-shaped plates is provided with a tensioning unit adapted to the second prism. An adjusting seat is equipped with a meshing synchronous rotation mechanism for driving the first and second arc-shaped plates to rotate synchronously. The adjusting seat is also equipped with a spacing adjustment component for adjusting the distance between the first and second arc-shaped plates.

[0008] Optionally, the meshing synchronous rotation mechanism includes an arc-shaped rack fixedly installed on the outer walls of the first arc-shaped plate and the second arc-shaped plate, respectively. The second arc-shaped plate has two slots on the side facing the first arc-shaped plate, and two locking strips are fixedly connected to the side of the first arc-shaped plate facing the second arc-shaped plate. The locking strips are adapted to the slots. The adjusting seat has a plurality of annular grooves, and the number of annular grooves is the same as that of the first arc-shaped plate. The first arc-shaped plate is fixedly installed with a first guide block adapted to the annular groove. The second arc-shaped plate is fixedly installed with a second guide block located in the annular groove. The inner wall of the annular groove is provided with a first sliding groove adapted to the first guide block, and the first guide block is located in the first sliding groove. The first guide block has a guide groove, and a guide plate is provided in the guide groove. The guide plate and the inner wall of the first sliding groove are fixedly connected. The adjusting seat is equipped with a drive unit for driving the arc-shaped rack to rotate.

[0009] Optionally, the drive unit includes a first motor fixedly mounted on one of the adjustment seats, and two adjustment seats are rotatably connected to rotating shafts. A gear plate is fixedly sleeved on the outside of the rotating shaft, and an arc-shaped rack on the second arc plate meshes with the gear plate. The output end of the first motor is fixedly connected to one of the corresponding rotating shafts. A second sliding groove is provided on one of the rotating shafts, and a first prism is provided in the second sliding groove. The first prism is fixedly connected to the end of the other rotating shaft.

[0010] When the spacing adjustment component drives the first arc plate to move, the first arc plate drives the first guide block to slide in the first groove, and the guide plate slides relative to the guide groove. When the first guide block slides into the annular groove, the guide plate disengages from the guide groove, and the locking strip on the first arc plate inserts into the corresponding locking slot. The first arc plate and the second arc plate combine to form a complete ring, and the two arc racks on the first arc plate and the second arc plate combine to form a complete gear ring. At this time, the first motor drives one of the corresponding rotating shafts to rotate. Through the design of the first prism and the second groove, the rotating shaft drives the other rotating shaft to rotate synchronously. The rotating shaft drives the gear plate to rotate, and the gear plate can drive the gear ring formed by the two arc racks to rotate. The first arc plate drives the first guide block to slide in the annular groove, and the second arc plate drives the second guide block to slide in the annular groove, thereby causing the aluminum alloy frame tube fixed between the first arc plate and the second arc plate to be circumferentially cut by the saw blade cutting component.

[0011] Optionally, the spacing adjustment assembly includes support columns fixedly installed on the first arc-shaped plate and the second arc-shaped plate respectively. A movable frame is provided on the side of each adjustment seat that is close to it. At least one set of pushing units is fixedly installed on the movable frame. Each set of pushing units includes two push blocks fixedly installed on the movable frame. The number of push blocks is the same as that of the first arc-shaped plate, and the push blocks have inclined surfaces that cooperate with the support columns. A first mounting plate is fixedly installed on the adjustment seat. A first hydraulic telescopic rod is fixedly connected to the top of the first mounting plate. The telescopic end of the first hydraulic telescopic rod is fixedly connected to the movable frame. A support plate is sleeved on the outside of the movable frame, and the support plate is fixedly connected to the adjustment seat. A reset unit adapted to the first arc-shaped plate is installed on the adjustment seat.

[0012] Optionally, the reset unit includes several fixed seats fixedly installed on the adjustment seat, and the number of fixed seats and the number of the first arc plate are the same. The fixed seat has a groove on the side facing the first arc plate, and a movable plate is provided in the groove. The movable plate and the inner wall of the groove are connected by several compression springs, and the movable plate is in contact with the first arc plate.

[0013] Optionally, the stretching unit includes a fixing plate fixedly installed at the end of the second prism. The fixing plate is connected to the first arc plate or the second arc plate respectively through a first tension spring, and an anti-slip pad for contacting the workpiece is fixedly connected to the end of the second prism away from the fixing plate.

[0014] Optionally, the support unit includes two mounting brackets fixedly installed on the top of the base. At least one support seat is fixedly connected to both sides of the mounting bracket, and the number of support seats on the same mounting bracket is the same as the number of first arc-shaped plates on the same adjustment seat.

[0015] Optionally, the saw blade cutting assembly includes a first support sleeve and a second support sleeve disposed above the base. Both the first and second support sleeves are fitted over the outside of the first prism, and a mounting base is rotatably fitted over both the first and second support sleeves. The mounting base and the base are fixedly connected. A first positioning ring is fixedly fitted over the outside of the first support sleeve, and a second positioning ring is fixedly fitted over the outside of the second support sleeve. A saw blade is disposed between the first and second support sleeves, and the saw blade contacts the first and second positioning rings respectively. The saw blade has several first positioning holes, and both the first and second positioning rings have several second positioning holes. The outside of the second support sleeve is fitted with... A movable ring has several positioning pins fixedly connected to the side of the movable ring facing the second positioning ring. The positioning pins pass through the second positioning holes on the first positioning ring and the second positioning ring respectively, and the positioning pins also pass through the corresponding first positioning holes. A second tension spring is sleeved on the outside of the positioning pins. The two ends of the second tension spring are fixedly connected to the second positioning ring and the movable ring respectively. A control box is sleeved on the outside of the first support sleeve, and the control box is fixedly connected to the corresponding mounting base. A second motor is fixedly connected inside the control box. A first bevel gear is fixedly connected to the output end of the second motor. A second bevel gear located inside the control box is fixedly sleeved on the outside of the first support sleeve, and the first bevel gear and the second bevel gear mesh with each other.

[0016] Optionally, the mover includes two second mounting plates fixedly installed on the top of the base. Two second hydraulic telescopic rods are fixedly connected to the sides of the two second mounting plates that are close to each other. The telescopic ends of the two second hydraulic telescopic rods are fixedly connected to two adjusting seats through connecting frames. Two brackets are fixedly installed on the adjusting seats. Two rollers are fixedly connected to the bottom of the brackets, and the rollers are in contact with the base.

[0017] The present invention also provides a method for cutting aluminum alloy frame tubes, including the aluminum alloy frame tube cutting device as described above, comprising the following steps: Step 1: The worker places the aluminum alloy frame tube to be cut on the support unit, and the position of the aluminum alloy frame tube to be cut is located on one side of the saw blade cutting assembly. The adjusting seat is moved by the mover so that the distance between the two adjusting seats and the aluminum alloy frame tube reaches the preset value, and the first arc plate and the second arc plate are moved to both sides of the aluminum alloy frame tube respectively. Step 2: Adjust the spacing between the first and second arc-shaped plates using the spacing adjustment component so that the first and second arc-shaped plates are combined into a complete ring. The tensioning unit applies tension to the second prism, and the end of the aluminum alloy frame tube is elastically clamped by the second prism on the first and second arc-shaped plates. The saw blade cutting component contacts the aluminum alloy frame tube and cuts the aluminum alloy frame tube using the saw blade cutting component. Step 3: The meshing synchronous rotation mechanism drives the first arc plate and the second arc plate to rotate, so that the aluminum alloy frame tube fixed between the first arc plate and the second arc plate is circumferentially cut by the saw blade cutting assembly; Step 4: After the aluminum alloy frame tube is cut, the spacing between the first arc plate and the second arc plate is increased by the spacing adjustment component so that the aluminum alloy frame tube is no longer elastically clamped by the second prism on the first arc plate and the second arc plate. Step 5: Move the two adjusting seats away from each other using the mover so that the end of the aluminum alloy frame tube is no longer located between the first and second arc plates. The worker can then remove the cut aluminum alloy frame tube from the support unit.

[0018] The beneficial effects of this invention are as follows: The worker places the aluminum alloy frame tube to be cut on the support unit, with the cutting position of the aluminum alloy frame tube located on one side of the saw blade cutting assembly. The adjusting seats are moved by a mover to achieve a preset distance between the two adjusting seats and the aluminum alloy frame tube. The first and second arc-shaped plates are moved to opposite sides of the aluminum alloy frame tube. The distance between the first and second arc-shaped plates is adjusted by the distance adjusting assembly so that the first and second arc-shaped plates form a complete ring. The stretching unit applies tension to the second prism, and the first and second arc-shaped plates... The second prism on the plate elastically clamps the end of the aluminum alloy frame tube, and the saw blade cutting assembly contacts the aluminum alloy frame tube. The saw blade cutting assembly cuts the aluminum alloy frame tube, while the meshing synchronous rotation mechanism drives the first and second arc plates to rotate, so that the aluminum alloy frame tube fixed between the first and second arc plates is circumferentially cut by the saw blade cutting assembly. When cutting the aluminum alloy frame tube, both ends of the aluminum alloy frame tube can be clamped and fixed, eliminating the need for workers to hold the aluminum alloy frame tube, thus improving safety. At the same time, multiple aluminum alloy frame tubes can be circumferentially cut, improving cutting efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the adjustment seat according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first arc-shaped plate according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the second arc-shaped plate according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the disassembled structure of the movable plate and the groove in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the movable frame according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the disassembled first prism and second groove according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the internal structure of the control box according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the saw blade separated from the first support sleeve and the second support sleeve according to an embodiment of the present invention.

[0021] The diagram is marked as follows: 1. Base; 2. Adjusting seat; 3. Annular groove; 4. First arc-shaped plate; 5. Second arc-shaped plate; 6. Arc-shaped rack; 7. First guide block; 8. Second guide block; 9. First slide groove; 10. Guide plate; 11. Guide groove; 12. Rotating shaft; 13. First prism; 14. Second slide groove; 15. Gear plate; 16. First motor; 17. Fixed seat; 18. Movable plate; 19. Groove; 20. Compression spring; 21. Movable frame; 22. Support plate; 23. Support column; 24. Push block; 25. First mounting plate; 26. First hydraulic telescopic rod; 27. Second prism; 28. Fixed plate; 2 9. First tension spring; 30. Anti-slip pad; 31. Mounting bracket; 32. Support base; 33. First support sleeve; 34. Second support sleeve; 35. First positioning ring; 36. Second positioning ring; 37. Saw blade; 38. First positioning hole; 39. Second positioning hole; 40. Mounting base; 41. Movable ring; 42. Positioning post; 43. Second tension spring; 44. Control box; 45. Second motor; 46. First bevel gear; 47. Second bevel gear; 48. Bracket; 49. Roller; 50. Second mounting plate; 51. Second hydraulic telescopic rod; 52. Connecting bracket; 53. Slot; 54. Clip. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0023] This embodiment presents a cutting device for aluminum alloy vehicle frame tubes, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes a base 1, a saw blade cutting assembly for cutting the workpiece is installed on the top of the base 1, and adjustment seats 2 are symmetrically arranged on both sides of the saw blade cutting assembly. A mover for driving the two adjustment seats 2 to move is installed on the base 1, and a support unit for supporting the workpiece is installed on the top of the base 1. At least one set of clamping and rotating components is provided on the side of the two adjustment seats 2 that are close to each other. Each clamping and rotating assembly includes two first arc-shaped plates 4, with a second arc-shaped plate 5 positioned on the side of the two first arc-shaped plates 4 that are close to each other. Two second prisms 27 penetrate both the first arc-shaped plates 4 and 5. Each of the first arc-shaped plates 4 and 5 has a tensioning unit adapted to the second prism 27. An adjusting seat 2 is equipped with a meshing synchronous rotation mechanism for driving the first arc-shaped plates 4 and 5 to rotate synchronously. The adjusting seat 2 also has a spacing adjustment assembly for adjusting the distance between the first arc-shaped plates 4 and 5. The operator places the aluminum alloy frame tube to be cut on the supporting unit, with the cutting position on one side of the saw blade cutting assembly. The adjusting seat 2 is moved by a mover to bring the distance between the two adjusting seats 2 and the aluminum alloy frame tube to a preset value, and the first arc-shaped plates 4 and 5 move to opposite sides of the aluminum alloy frame tube. The spacing between the first arc plate 4 and the second arc plate 5 is adjusted by the spacing adjustment component so that the first arc plate 4 and the second arc plate 5 are combined into a complete ring. The tensioning unit applies tension to the second prism 27, and the end of the aluminum alloy frame tube is elastically clamped by the second prism 27 on the first arc plate 4 and the second arc plate 5. The saw blade cutting component contacts the aluminum alloy frame tube and cuts the aluminum alloy frame tube by the saw blade cutting component. At the same time, the meshing synchronous rotation mechanism drives the first arc plate 4 and the second arc plate 5 to rotate, so that the aluminum alloy frame tube fixed between the first arc plate 4 and the second arc plate 5 is circumferentially cut by the saw blade cutting component. When cutting the aluminum alloy frame tube, both ends of the aluminum alloy frame tube can be clamped and fixed, eliminating the need for the operator to hold the aluminum alloy frame tube, thus improving safety. At the same time, multiple aluminum alloy frame tubes can be circumferentially cut, improving cutting efficiency.

[0024] In some optional specific embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the meshing synchronous rotation mechanism includes arc-shaped racks 6 fixedly installed on the outer walls of the first arc-shaped plate 4 and the second arc-shaped plate 5 respectively. Two slots 53 are formed on the side of the second arc-shaped plate 5 facing the first arc-shaped plate 4. Two retaining bars 54 are fixedly connected to the side of the first arc-shaped plate 4 facing the second arc-shaped plate 5, and the retaining bars 54 are adapted to the slots 53. The adjusting seat 2 has several annular grooves 3, and the number of annular grooves 3 is the same as that of the first arc-shaped plate 4. A first guide block 7 adapted to the annular groove 3 is fixedly installed on the first arc-shaped plate 4. A second guide block 8 located within the annular groove 3 is fixedly installed on the second arc-shaped plate 5. A first sliding groove 9 adapted to the first guide block 7 is formed on the inner wall of the annular groove 3, and the first guide block 7 is located within the first sliding groove 9. The first guide block 7 has a guide groove 11, and a guide plate 10 is provided in the guide groove 11. The guide plate 10 is fixedly connected to the inner wall of the first slide groove 9. The adjustment seat 2 is equipped with a drive unit for driving the arc rack 6 to rotate. The drive unit includes a first motor 16 fixedly installed on one of the adjustment seats 2. The two adjustment seats 2 are rotatably connected to a rotating shaft 12. A gear plate 15 is fixedly sleeved on the outside of the rotating shaft 12. The arc rack 6 on the second arc plate 5 meshes with the gear plate 15. The output end of the first motor 16 is fixedly connected to one of the corresponding rotating shafts 12. A second slide groove 14 is provided on one of the rotating shafts 12. A first prism 13 is provided in the second slide groove 14. The first prism 13 is fixedly connected to the end of the other rotating shaft 12. When the spacing adjustment component drives the first arc plate 4 to move, the first arc plate 4 drives the first guide block 7 to slide within the first slide groove 9, and the guide plate 10 slides relative to the guide groove 11. When the first guide block 7 slides into the annular groove 3, the guide plate 10 disengages from the guide groove 11, and the retaining strip 54 on the first arc plate 4 inserts into the corresponding retaining groove 53. The first arc plate 4 and the second arc plate 5 combine to form a complete ring, and the two arc-shaped racks 6 on the first arc plate 4 and the second arc plate 5 combine to form a complete gear ring. At this time, the first motor 16... One of the corresponding rotating shafts 12 is driven to rotate. Through the design of the first prism 13 and the second slide 14, the rotating shaft 12 drives the other rotating shaft 12 to rotate synchronously. The rotating shaft 12 drives the gear disk 15 to rotate. The gear disk 15 can drive the gear ring composed of two arc-shaped racks 6 to rotate. The first arc plate 4 drives the first guide block 7 to slide in the annular groove 3, and the second arc plate 5 drives the second guide block 8 to slide in the annular groove 3. Thus, the aluminum alloy frame tube fixed between the first arc plate 4 and the second arc plate 5 is circumferentially cut by the saw blade cutting assembly.

[0025] In some optional specific embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the spacing adjustment assembly includes support columns 23 fixedly installed on the first arc-shaped plate 4 and the second arc-shaped plate 5 respectively. Movable frames 21 are provided on the adjacent sides of the two adjustment seats 2. At least one set of pushing units is fixedly installed on each movable frame 21. Each pushing unit includes two push blocks 24 fixedly installed on the movable frame 21. The number of push blocks 24 is the same as that of the first arc-shaped plate 4, and the push blocks 24 have inclined surfaces that cooperate with the support columns 23. A first mounting plate 25 is fixedly installed on the adjustment seat 2. A first hydraulic telescopic rod 26 is fixedly connected to the top of the first mounting plate 25. The telescopic end of the first hydraulic telescopic rod 26 is fixedly connected to the movable frame 21. A support plate 22 is sleeved on the outside of the movable frame 21, and the support plate 22 is fixedly connected to the adjustment seat 2. The entire base 2 is equipped with a reset unit adapted to the first arc plate 4. The reset unit includes several fixed seats 17 fixedly installed on the adjustment base 2, and the number of fixed seats 17 and the number of the first arc plate 4 are the same. The fixed seat 17 has a groove 19 on the side facing the first arc plate 4. A movable plate 18 is provided in the groove 19. The movable plate 18 and the inner wall of the groove 19 are connected by several compression springs 20. The movable plate 18 is in contact with the first arc plate 4. The tensioning unit includes a fixed plate 28 fixedly installed at the end of the second prism 27. The fixed plate 28 is connected to the first arc plate 4 or the second arc plate 5 respectively by a first tension spring 29. The end of the second prism 27 away from the fixed plate 28 is fixedly connected with an anti-slip pad 30 for contacting the workpiece to be processed. The movable frame 21 is driven upward by the first hydraulic telescopic rod 26. The inclined surface on the push block 24 contacts the support column 23 on the first arc plate 4. As the movable frame 21 continues to move upward, the support column 23 slides on the inclined surface of the push block 24. The push block 24 pushes the support column 23 and the first arc plate 4 toward the second arc plate 5. The first arc plate 4 pushes the movable plate 18 to slide relative to the groove 19. The compression spring 20 is in a compressed state. As the distance between the first arc plate 4 and the second arc plate 5 increases, the anti-slip pads 30 on the first arc plate 4 and the second arc plate 5 contact the aluminum alloy frame tube. As the first arc plate 4 continues to move, the second prism 27 and the fixed plate 28 slide relative to the first arc plate 4 or the second arc plate 5. The first tension spring 29 is in a stretched state. The extension spring 29 applies tension to the fixed plate 28 and the second prism 27, so that the second prism 27 on the first arc plate 4 and the second arc plate 5 elastically clamps the aluminum alloy frame tube, and the second prism 27 on the first arc plate 4 pushes the aluminum alloy frame tube toward the saw blade cutting assembly, so that the saw blade cutting assembly cuts the aluminum alloy frame tube. When the first arc plate 4 and the second arc plate 5 are combined to form a complete ring, the movable frame 21 stops moving upward. When it is necessary to drive the first arc plate 4 to move away from the second arc plate 5, the first hydraulic telescopic rod 26 drives the movable frame 21 to move downward, and the compression spring 20 applies a pushing force to the movable plate 18. The movable plate 18 pushes the first arc plate 4 to move away from the second arc plate 5, so that the first arc plate 4 returns to its initial position relative to the adjusting seat 2.

[0026] In some optional specific embodiments, such as Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the support unit includes two mounting brackets 31 fixedly mounted on the top of the base 1. At least one support seat 32 is fixedly connected to both sides of each mounting bracket 31. The number of support seats 32 on the same mounting bracket 31 is the same as the number of first arc-shaped plates 4 on the same adjusting seat 2. The saw blade cutting assembly includes a first support sleeve 33 and a second support sleeve 34 disposed above the base 1. Both the first support sleeve 33 and the second support sleeve 34 are sleeved on the outside of the first prism 13, and a mounting seat 40 is rotatably mounted on the outside of both the first support sleeve 33 and the second support sleeve 34. 40 and base 1 are fixedly connected. A first positioning ring 35 is fixedly fitted on the outside of the first support sleeve 33, and a second positioning ring 36 is fixedly fitted on the outside of the second support sleeve 34. A saw blade 37 is provided between the first support sleeve 33 and the second support sleeve 34, and the saw blade 37 is in contact with the first positioning ring 35 and the second positioning ring 36 respectively. A plurality of first positioning holes 38 are opened on the saw blade 37, and a plurality of second positioning holes 39 are opened on both the first positioning ring 35 and the second positioning ring 36. A movable ring 41 is fitted on the outside of the second support sleeve 34, and the movable ring 41 is fixedly connected to the side facing the second positioning ring 36. A plurality of positioning pins 42 are provided, each of which passes through the second positioning holes 39 on the first positioning ring 35 and the second positioning ring 36, and also passes through the corresponding first positioning holes 38. A second tension spring 43 is sleeved on the outside of each positioning pin 42, with its two ends fixedly connected to the second positioning ring 36 and the movable ring 41, respectively. A control box 44 is sleeved on the outside of the first support sleeve 33, and the control box 44 is fixedly connected to the corresponding mounting base 40. A second motor 45 is fixedly connected inside the control box 44, and a first bevel gear 4 is fixedly connected to the output end of the second motor 45. 6. The first support sleeve 33 is externally fixedly fitted with a second bevel gear 47 located inside the control box 44, and the first bevel gear 46 and the second bevel gear 47 mesh with each other. The mover includes two second mounting plates 50 fixedly installed on the top of the base 1. The two second mounting plates 50 are respectively fixedly connected to the side of the two second mounting plates 50 that are close to each other. The telescopic ends of the two second hydraulic telescopic rods 51 are respectively fixedly connected to two adjusting seats 2 through connecting brackets 52. The adjusting seats 2 are fixedly installed with two brackets 48. The bottom of the brackets 48 is fixedly connected with two rollers 49, and the rollers 49 are in contact with the base 1. The aluminum alloy frame tube is supported by the support seat 32 on the mounting bracket 31. The first bevel gear 46 is driven to rotate by the second motor 45. The first bevel gear 46 drives the first support sleeve 33 and the first positioning ring 35 to rotate through the second bevel gear 47. The first positioning ring 35 drives the saw blade 37, the second positioning ring 36 and the second support sleeve 34 to rotate synchronously through the positioning post 42. The aluminum alloy frame tube can be cut by the saw blade 37. The connecting bracket 52 and the adjusting seat 2 can be moved horizontally by the second hydraulic telescopic rod 51, so that the distance between the two adjusting seats 2 can be adjusted. At the same time, the adjusting seat 2 drives the roller 49 to roll on the base 1 through the bracket 48. The design of the bracket 48 and the roller 49 reduces the resistance encountered by the adjusting seat 2 when moving horizontally. When the adjusting seat 2 moves, the first prism 13 slides relative to the second slide groove 14. When the saw blade 37 needs to be replaced, the adjusting seat 2 is moved by the second hydraulic telescopic rod 51. Increase the distance between the two adjusting seats 2 so that the adjusting seats 2 drive the first prism 13 to disengage from the second slide groove 14 through the rotating shaft 12, so that there is a gap between the rotating shaft 12 with the second slide groove 14 and the first prism 13, and the gap is located between the first positioning ring 35 and the second positioning ring 36. The operator drives the movable ring 41 to move so that the positioning post 42 disengages from the second positioning hole 39 on the first positioning ring 35 and disengages from the first positioning hole 38 on the saw blade 37. The second tension spring 43 is in a stretched state, releasing the restriction on the position of the saw blade 37. The operator drives the saw blade 37 to move upward, pulling the saw blade 37 out from between the first positioning ring 35 and the second positioning ring 36, and pulling the saw blade 37 out from the gap between the rotating shaft 12 with the second slide groove 14 and the first prism 13, thus completing the removal of the saw blade 37. Similarly, the above steps are reversed to complete the installation of the saw blade 37, making it convenient to install and remove the saw blade 37.

[0027] This embodiment also provides a method for cutting aluminum alloy frame tubes, including the aluminum alloy frame tube cutting device as described above, and including the following steps: Step 1: The worker places the aluminum alloy frame tube to be cut on the support unit, and the position of the aluminum alloy frame tube to be cut is located on one side of the saw blade cutting assembly. The adjusting seat 2 is moved by the mover so that the distance between the two adjusting seats 2 and the aluminum alloy frame tube reaches the preset value, and the first arc plate 4 and the second arc plate 5 are moved to both sides of the aluminum alloy frame tube respectively. Step 2: Adjust the spacing between the first arc plate 4 and the second arc plate 5 using the spacing adjustment component so that the first arc plate 4 and the second arc plate 5 are combined into a complete ring. The tensioning unit applies tension to the second prism 27. The end of the aluminum alloy frame tube is elastically clamped by the second prism 27 on the first arc plate 4 and the second arc plate 5. The saw blade cutting component contacts the aluminum alloy frame tube and cuts the aluminum alloy frame tube using the saw blade cutting component. Step 3: The meshing synchronous rotation mechanism drives the first arc plate 4 and the second arc plate 5 to rotate, so that the aluminum alloy frame tube fixed between the first arc plate 4 and the second arc plate 5 is circumferentially cut by the saw blade cutting assembly. Step 4: After the aluminum alloy frame tube is cut, the spacing between the first arc plate 4 and the second arc plate 5 is increased by the spacing adjustment component so that the aluminum alloy frame tube is no longer elastically clamped by the second prism 27 on the first arc plate 4 and the second arc plate 5. Step 5: Drive the two adjusting seats 2 to move away from each other by moving the mover so that the end of the aluminum alloy frame tube is no longer located between the first arc plate 4 and the second arc plate 5. The worker can then remove the cut aluminum alloy frame tube from the support unit.

[0028] Working Principle: The operator places the aluminum alloy frame tube to be cut on the support unit, with the cutting position located on one side of the saw blade cutting assembly. The adjusting seat 2 is moved by a mover to achieve a preset distance between the two adjusting seats 2 and the aluminum alloy frame tube. The first arc plate 4 and the second arc plate 5 are moved to opposite sides of the aluminum alloy frame tube. The distance adjustment assembly adjusts the distance between the first arc plate 4 and the second arc plate 5 to form a complete ring. The tensioning unit applies tension to the second prism 27, which elastically clamps the end of the aluminum alloy frame tube. The saw blade cutting assembly contacts the aluminum alloy frame tube and cuts it. Simultaneously, the meshing synchronous rotation mechanism drives the first arc plate... The first arc plate 4 and the second arc plate 5 rotate so that the aluminum alloy frame tube fixed between the first arc plate 4 and the second arc plate 5 is circumferentially cut by the saw blade cutting assembly. After the aluminum alloy frame tube is cut, the spacing between the first arc plate 4 and the second arc plate 5 is increased by the spacing adjustment assembly so that the aluminum alloy frame tube is no longer elastically clamped by the second prism 27 on the first arc plate 4 and the second arc plate 5. The two adjusting seats 2 are driven to move away from each other by the mover so that the end of the aluminum alloy frame tube is no longer located between the first arc plate 4 and the second arc plate 5. The operator can then remove the cut aluminum alloy frame tube from the support unit. When cutting the aluminum alloy frame tube, both ends of the aluminum alloy frame tube can be clamped and fixed, eliminating the need for the operator to hold the aluminum alloy frame tube, thus improving safety. At the same time, multiple aluminum alloy frame tubes can be circumferentially cut, improving cutting efficiency. When the spacing adjustment component drives the first arc plate 4 to move, the first arc plate 4 drives the first guide block 7 to slide within the first slide groove 9, and the guide plate 10 slides relative to the guide groove 11. When the first guide block 7 slides into the annular groove 3, the guide plate 10 disengages from the guide groove 11, and the retaining strip 54 on the first arc plate 4 inserts into the corresponding retaining groove 53. The first arc plate 4 and the second arc plate 5 combine to form a complete ring, and the two arc-shaped racks 6 on the first arc plate 4 and the second arc plate 5 combine to form a complete gear ring. At this time, the first motor 16... Drive one of the corresponding rotating shafts 12 to rotate. Through the design of the first prism 13 and the second slide 14, the rotating shaft 12 drives the other rotating shaft 12 to rotate synchronously. The rotating shaft 12 drives the gear disk 15 to rotate. The gear disk 15 can drive the gear ring composed of two arc-shaped racks 6 to rotate. The first arc plate 4 drives the first guide block 7 to slide in the annular groove 3, and the second arc plate 5 drives the second guide block 8 to slide in the annular groove 3, thereby causing the aluminum alloy frame tube fixed between the first arc plate 4 and the second arc plate 5 to be circumferentially cut by the saw blade cutting assembly. The movable frame 21 is driven upward by the first hydraulic telescopic rod 26. The inclined surface on the push block 24 contacts the support column 23 on the first arc plate 4. As the movable frame 21 continues to move upward, the support column 23 slides on the inclined surface of the push block 24. The push block 24 pushes the support column 23 and the first arc plate 4 toward the second arc plate 5. The first arc plate 4 pushes the movable plate 18 to slide relative to the groove 19. The compression spring 20 is in a compressed state. As the distance between the first arc plate 4 and the second arc plate 5 increases, the anti-slip pads 30 on the first arc plate 4 and the second arc plate 5 contact the aluminum alloy frame tube. As the first arc plate 4 continues to move, the second prism 27 and the fixed plate 28 slide relative to the first arc plate 4 or the second arc plate 5. The first tension spring 29 is in a stretched state. The extension spring 29 applies tension to the fixed plate 28 and the second prism 27, so that the second prism 27 on the first arc plate 4 and the second arc plate 5 elastically clamps the aluminum alloy frame tube, and the second prism 27 on the first arc plate 4 pushes the aluminum alloy frame tube toward the saw blade cutting assembly, so that the saw blade cutting assembly cuts the aluminum alloy frame tube. When the first arc plate 4 and the second arc plate 5 are combined into a complete ring, the movable frame 21 stops moving upward. When it is necessary to drive the first arc plate 4 to move away from the second arc plate 5, the first hydraulic telescopic rod 26 drives the movable frame 21 to move downward, and the compression spring 20 applies a pushing force to the movable plate 18. The movable plate 18 pushes the first arc plate 4 to move away from the second arc plate 5, so that the first arc plate 4 returns to its initial position relative to the adjusting seat 2. The aluminum alloy frame tube is supported by the support seat 32 on the mounting bracket 31. The first bevel gear 46 is driven to rotate by the second motor 45. The first bevel gear 46 drives the first support sleeve 33 and the first positioning ring 35 to rotate through the second bevel gear 47. The first positioning ring 35 drives the saw blade 37, the second positioning ring 36 and the second support sleeve 34 to rotate synchronously through the positioning post 42. The aluminum alloy frame tube can be cut by the saw blade 37. The connecting bracket 52 and the adjusting seat 2 can be moved horizontally by the second hydraulic telescopic rod 51, so that the distance between the two adjusting seats 2 can be adjusted. At the same time, the adjusting seat 2 drives the roller 49 to roll on the base 1 through the bracket 48. The design of the bracket 48 and the roller 49 reduces the resistance encountered by the adjusting seat 2 when moving horizontally. When the adjusting seat 2 moves, the first prism 13 slides relative to the second slide groove 14. When the saw blade 37 needs to be replaced, the adjusting seat 2 is moved by the second hydraulic telescopic rod 51. Increase the distance between the two adjusting seats 2 so that the adjusting seats 2 drive the first prism 13 to disengage from the second slide groove 14 through the rotating shaft 12, so that there is a gap between the rotating shaft 12 with the second slide groove 14 and the first prism 13, and the gap is located between the first positioning ring 35 and the second positioning ring 36. The operator drives the movable ring 41 to move so that the positioning post 42 disengages from the second positioning hole 39 on the first positioning ring 35 and disengages from the first positioning hole 38 on the saw blade 37. The second tension spring 43 is in a stretched state, releasing the restriction on the position of the saw blade 37. The operator drives the saw blade 37 to move upward, pulling the saw blade 37 out from between the first positioning ring 35 and the second positioning ring 36, and pulling the saw blade 37 out from the gap between the rotating shaft 12 with the second slide groove 14 and the first prism 13, thus completing the removal of the saw blade 37. Similarly, the above steps are reversed to complete the installation of the saw blade 37, making it convenient to install and remove the saw blade 37.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A cutting device for aluminum alloy vehicle frame tubes, comprising a base (1), characterized in that, The top of the base (1) is equipped with a saw blade cutting assembly for cutting the workpiece to be processed. The two sides of the saw blade cutting assembly are symmetrically provided with adjustment seats (2). The base (1) is equipped with a mover for driving the two adjustment seats (2) to move. The top of the base (1) is equipped with a support unit for supporting the workpiece to be processed. At least one set of clamping and rotating components is provided on the side of the two adjustment seats (2) that are close to each other. Each set of clamping and rotating components includes two first arc plates (4), and a second arc plate (5) is provided on the side of the two first arc plates (4) that are close to each other. Two second prisms (27) pass through the first arc plate (4) and the second arc plate (5). The first arc plate (4) and the second arc plate (5) are respectively provided with tensioning units adapted to the second prisms (27). The adjusting seat (2) is equipped with a meshing synchronous rotation mechanism for driving the first arc plate (4) and the second arc plate (5) to rotate synchronously. The adjusting seat (2) is equipped with a spacing adjustment component for adjusting the distance between the first arc plate (4) and the second arc plate (5). The meshing synchronous rotation mechanism includes an arc-shaped rack (6) fixedly installed on the outer walls of the first arc plate (4) and the second arc plate (5). Two slots (53) are opened on the side of the second arc plate (5) facing the first arc plate (4). Two locking strips (54) are fixedly connected to the side of the first arc plate (4) facing the second arc plate (5), and the locking strips (54) are adapted to the slots (53). Several annular grooves (3) are opened on the adjusting seat (2), and the number of annular grooves (3) is the same as the number of grooves on the first arc plate (4). The first arc plate (4) is fixedly installed with annular grooves... The first guide block (7) is adapted to the groove (3), and the second arc plate (5) is fixedly installed with the second guide block (8) located in the annular groove (3). The inner wall of the annular groove (3) is provided with the first sliding groove (9) adapted to the first guide block (7), and the first guide block (7) is located in the first sliding groove (9). The first guide block (7) is provided with the guide groove (11), and the guide plate (10) is provided in the guide groove (11). The guide plate (10) and the inner wall of the first sliding groove (9) are fixedly connected. The adjusting seat (2) is equipped with a drive unit for driving the arc rack (6) to rotate. The spacing adjustment assembly includes support columns (23) fixedly installed on the first arc plate (4) and the second arc plate (5) respectively. Each of the two adjustment seats (2) is provided with a movable frame (21) on the side close to each other. The movable frame (21) is fixedly installed with at least one set of pushing units. Each set of pushing units includes two push blocks (24) fixedly installed on the movable frame (21). The number of push blocks (24) is the same as that of the first arc plate (4). The push blocks (24) are provided with an inclined surface that cooperates with the support column (23). The adjustment seat (2) is fixedly installed with a first mounting plate (25). The top of the first mounting plate (25) is fixedly connected with a first hydraulic telescopic rod (26). The telescopic end of the first hydraulic telescopic rod (26) is fixedly connected to the movable frame (21). The movable frame (21) is sleeved with a support plate (22). The support plate (22) is fixedly connected to the adjustment seat (2). The adjustment seat (2) is installed with a reset unit that is compatible with the first arc plate (4).

2. The cutting device for aluminum alloy frame tubes according to claim 1, characterized in that, The drive unit includes a first motor (16) fixedly mounted on one of the adjustment seats (2), and two adjustment seats (2) are rotatably connected to a rotating shaft (12). A gear plate (15) is fixedly sleeved on the outside of the rotating shaft (12), and the arc-shaped rack (6) on the second arc plate (5) meshes with the gear plate (15). The output end of the first motor (16) is fixedly connected to one of the corresponding rotating shafts (12). A second slide groove (14) is opened on one of the rotating shafts (12), and a first prism (13) is provided in the second slide groove (14). The first prism (13) is fixedly connected to the end of the other rotating shaft (12).

3. The cutting device for aluminum alloy frame tubes according to claim 1, characterized in that, The reset unit includes several fixed seats (17) fixedly installed on the adjustment seat (2), and the number of fixed seats (17) and the number of the first arc plate (4) are the same. The fixed seat (17) has a groove (19) on the side facing the first arc plate (4). A movable plate (18) is provided in the groove (19). The movable plate (18) and the inner wall of the groove (19) are connected by several compression springs (20). The movable plate (18) and the first arc plate (4) are in contact.

4. The cutting device for aluminum alloy frame tubes according to claim 1, characterized in that, The stretching unit includes a fixing plate (28) fixedly installed at the end of the second prism (27). The fixing plate (28) is connected to the first arc plate (4) or the second arc plate (5) respectively through a first tension spring (29). The end of the second prism (27) away from the fixing plate (28) is fixedly connected with an anti-slip pad (30) for contacting the workpiece to be processed.

5. The cutting device for aluminum alloy frame tubes according to claim 1, characterized in that, The support unit includes two mounting brackets (31) fixedly installed on the top of the base (1). At least one support seat (32) is fixedly connected to both sides of the mounting bracket (31), and the number of support seats (32) set on the same mounting bracket (31) is the same as the number of first arc plates (4) set on the same adjustment seat (2).

6. The cutting device for aluminum alloy frame tubes according to claim 2, characterized in that, The saw blade cutting assembly includes a first support sleeve (33) and a second support sleeve (34) disposed above the base (1). Both the first support sleeve (33) and the second support sleeve (34) are sleeved on the outside of the first prism (13), and a mounting seat (40) is rotatably sleeved on the outside of both the first support sleeve (33) and the second support sleeve (34). The mounting seat (40) and the base (1) are fixedly connected. A first positioning ring (35) is fixedly sleeved on the outside of the first support sleeve (33), and a second positioning ring (36) is fixedly sleeved on the outside of the second support sleeve (34). A saw blade (37) is disposed between the first support sleeve (33) and the second support sleeve (34), and the saw blade (37) contacts the first positioning ring (35) and the second positioning ring (36) respectively. A plurality of first positioning holes (38) are opened on the saw blade (37), and a plurality of second positioning holes (39) are opened on the first positioning ring (35) and the second positioning ring (36). A movable ring (4) is sleeved on the outside of the second support sleeve (34). 1) Several positioning pins (42) are fixedly connected to the side of the movable ring (41) facing the second positioning ring (36). The positioning pins (42) pass through the second positioning holes (39) on the first positioning ring (35) and the second positioning ring (36), and the positioning pins (42) pass through the corresponding first positioning holes (38). The outer side of the positioning pins (42) is fitted with a second tension spring (43). The two ends of the second tension spring (43) are fixedly connected to the second positioning ring (36) and the movable ring (41), respectively. The outer side of the first support sleeve (33) is fitted with a control box (44), and the control box (44) is fixedly connected to the corresponding mounting base (40). The control box (44) is fixedly connected with a second motor (45). The output end of the second motor (45) is fixedly connected with a first bevel gear (46). The outer side of the first support sleeve (33) is fixedly fitted with a second bevel gear (47) located in the control box (44), and the first bevel gear (46) and the second bevel gear (47) mesh with each other.

7. The cutting device for aluminum alloy frame tubes according to claim 1, characterized in that, The mover includes two second mounting plates (50) fixedly installed on the top of the base (1). The two second mounting plates (50) are respectively fixedly connected to the side of their proximity. The telescopic ends of the two second hydraulic telescopic rods (51) are respectively fixedly connected to two adjusting seats (2) through connecting frames (52). The adjusting seats (2) are fixedly installed with two brackets (48). The bottom of the brackets (48) is fixedly connected with two rollers (49), and the rollers (49) are in contact with the base (1).

8. A method for cutting aluminum alloy frame tubes, comprising the cutting device for aluminum alloy frame tubes as described in claim 1, characterized in that: Includes the following steps: Step 1: The worker places the aluminum alloy frame tube to be cut on the support unit, and the position of the aluminum alloy frame tube to be cut is located on one side of the saw blade cutting assembly. The adjusting seat (2) is moved by the mover so that the distance between the two adjusting seats (2) and the aluminum alloy frame tube reaches the preset value, and the first arc plate (4) and the second arc plate (5) are moved to the two sides of the aluminum alloy frame tube respectively. Step 2: Adjust the spacing between the first arc plate (4) and the second arc plate (5) using the spacing adjustment component so that the first arc plate (4) and the second arc plate (5) are combined into a complete ring, and the tensioning unit applies tension to the second prism (27). The end of the aluminum alloy frame tube is elastically clamped by the second prism (27) on the first arc plate (4) and the second arc plate (5), and the saw blade cutting component contacts the aluminum alloy frame tube and cuts the aluminum alloy frame tube using the saw blade cutting component. Step 3: The meshing synchronous rotation mechanism drives the first arc plate (4) and the second arc plate (5) to rotate, so that the aluminum alloy frame tube fixed between the first arc plate (4) and the second arc plate (5) is circumferentially cut by the saw blade cutting assembly; Step 4: After the aluminum alloy frame tube is cut, the spacing between the first arc plate (4) and the second arc plate (5) is increased by the spacing adjustment component so that the aluminum alloy frame tube is no longer elastically clamped by the second prism (27) on the first arc plate (4) and the second arc plate (5). Step 5: Drive the two adjusting seats (2) to move away from each other by moving the mover so that the end of the aluminum alloy frame tube is no longer located between the first arc plate (4) and the second arc plate (5). The worker can then remove the cut aluminum alloy frame tube from the support unit.

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