Cutting device for machining high-silicon aluminum alloy workpiece and using method of cutting device

Abstract

The invention discloses a cutting device for machining a high-silicon aluminum alloy workpiece and a using method of the cutting device, and particularly relates to the field of cutting. The cutting device comprises a rack, a cutting assembly is installed on the rack, clamps are arranged on the two sides of the cutting assembly, and the two clamps are used for clamping a pipe; an arc-shaped outer rod and an arc-shaped inner rod are arranged on the rack, the arc-shaped inner rod can slide in the arc-shaped outer rod around the central axis of the arc-shaped outer rod, a first supporting block is fixedly installed at the front end of the arc-shaped outer rod, and a supporting assembly is arranged at the front end of the arc-shaped inner rod. A first supporting block and a second supporting block are supported at the cutting position where a pipe is cut, so that in the cutting process, a pipe notch material cannot deform inwards, an arc-shaped inner rod and the second supporting block are arranged to be detachably separated, and in the cutting process, the arc-shaped inner rod and the second supporting block are arranged to be detachably separated; the arc-shaped inner rod leaves the gap position between the first supporting block and the second supporting block, so that the arc-shaped inner rod cannot be touched during cutting.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and more specifically, to a cutting device for processing high-silicon aluminum alloy workpieces and its method of use. Background Technology

[0002] High-silicon aluminum alloys are a promising metallic material with a silicon content typically between 10% and 30%. They not only maintain excellent performance at high temperatures but also possess outstanding casting and machinability. They are used in electronic packaging, automotive parts, and aerospace, and due to their attractive appearance and strong corrosion resistance, they are also applied in building materials.

[0003] When cutting high-silicon aluminum alloy pipes, a pipe cutting machine is used. However, for thin-walled pipes, the cut is prone to inward deformation during cutting. Existing technology uses supports on both sides of the cut inside the pipe to prevent deformation. During processing, because the pipe is long, two supports need to be inserted from one end. Therefore, a connector is required between the two supports. During cutting, the pipe rotates while being cut, thus achieving the cutting objective and avoiding cutting the connector.

[0004] The above solution is relatively easy to implement for straight pipes because they can be directly driven to rotate. However, for curved pipes, due to their curved shape, they cannot rotate after being clamped at multiple points; if forcibly cut, the connectors will be damaged. Summary of the Invention

[0005] The present invention provides a cutting device for processing high-silicon aluminum alloy workpieces and its method of use. The problem to be solved is that when the existing cutting device is cutting, the arc-shaped tube is supported inside by two support members and cannot avoid the connecting member between the two support members.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for processing high-silicon aluminum alloy workpieces, comprising a frame, a cutting assembly mounted on the frame, clamps on both sides of the cutting assembly for clamping the pipe; an arc-shaped outer rod and an arc-shaped inner rod are provided on the frame, the arc-shaped inner rod can slide around the central axis of the arc-shaped outer rod inside the arc-shaped outer rod, a support block one is fixedly installed at the front end of the arc-shaped outer rod, a support assembly is provided at the front end of the arc-shaped inner rod, the support assembly includes a support block two, the front end of the arc-shaped inner rod is detachably connected to the support block two; the support block one and the support block two are used to support the inside of the pipe, and the gap width between the support block one and the support block two is equal to the width of the saw blade of the cutting assembly.

[0007] In a preferred embodiment, air chambers are provided on both the upper and lower sides of the support assembly. A top block is provided inside the air chamber, and a spring is sleeved on the outer side of the top block. The spring is used to reset the top block towards the center of the support block. The bottom of the air chamber has a second through hole, and an air passage is provided inside the arc-shaped inner rod. The front end of the arc-shaped inner rod has a first through hole communicating with the air passage. The first through hole is used to communicate with the second through hole. The device also includes an air pump, and the output end of the air pump is connected to the air passage.

[0008] In a preferred embodiment, a through hole is provided on one side of the bottom of the air chamber, and a movable column is fixedly connected to the bottom of the top block. The movable column is vertically slidably installed in the through hole, and a support hole is provided on the surface of the arc-shaped inner rod, which is used to insert the movable column into the support hole.

[0009] In a preferred embodiment, a sealing block is slidably mounted in the middle of the support block two, and the sealing block is used to seal the through hole two.

[0010] In a preferred embodiment, side grooves are provided on both sides of the front end of the arc-shaped inner rod, and rigid rods are provided inside the two side grooves. A wedge block is fixedly connected to the front end of the rigid rod, and a locking block is provided on both sides of the front end of the sealing block. The wedge block is used to engage with the locking block.

[0011] In a preferred embodiment, a spring sheet is fixedly connected to the rear end of the rigid rod, and the spring sheet is fixedly connected to the side wall of the side groove. Both sides of the support block are fixedly connected to protrusions, and the two protrusions are used to push the two spring sheets and the rigid rod respectively, thereby separating the wedge block from the locking block.

[0012] In a preferred embodiment, a drive assembly is mounted on the frame. The drive assembly includes an arc-shaped slide rail 2, a slide block 2, and a cylinder 3. The slide rail 2 is fixedly mounted on the frame, the slide block 2 is slidably connected to the slide rail 2, and the slide block 2 is fixedly connected to the arc-shaped outer rod. The two ends of the cylinder 3 are respectively hinged to the frame and the slide block 2. A cylinder 4 is provided on the slide block 2, and the two ends of the cylinder 4 are respectively hinged to the slide block 2 and the arc-shaped inner rod.

[0013] In a preferred embodiment, the cutting assembly includes a column fixedly mounted on a frame, a swing arm rotatably connected to the column, a motor mounted at the front end of the swing arm, a saw blade mounted at the output end of the motor, and a cylinder first, with its two ends hinged to the front ends of the column and the swing arm, respectively.

[0014] In a preferred embodiment, the fixture includes a slide rail 1 fixedly mounted on a frame, a slide block 1 slidably mounted on the slide rail 1, a clamping plate 1 mounted on the front side of the slide block 1, a clamping plate 2 fixedly mounted on the front side of the clamping plate 1 and fixed to the frame, and a cylinder 2 mounted on the frame, the output end of the cylinder 2 being fixed to the slide block 1.

[0015] The present invention also provides a method of using a cutting device for processing high-silicon aluminum alloy workpieces, comprising the following steps: Step 1: Use two clamps to hold the pipe in place; Step 2: Insert the arc-shaped outer rod and the arc-shaped inner rod into the inside of the pipe, so that support block one and support block two are respectively supported on both sides of the part of the pipe that needs to be cut; Step 3: The inner arc-shaped rod slides relative to the outer arc-shaped rod to disengage the inner arc-shaped rod from the second support block, so that the inner arc-shaped rod does not extend to the gap between the first and second support blocks.

[0016] The technical effects and advantages of this invention are as follows: By supporting the pipe with support block one and support block two at the cutting position, the pipe material will not deform inward during the cutting process. By setting the arc-shaped inner rod and support block two to be detachable, the arc-shaped inner rod will move away from the gap between support block one and support block two during cutting, so that the arc-shaped inner rod will not be touched during cutting. The purpose of complete cutting can be achieved without rotating the pipe during the cutting process. Attached Figure Description

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the installation of the arc-shaped outer rod, arc-shaped inner rod, support block one, and support block two of the present invention; Figure 3 for Figure 2 Top view; Figure 4 For the Figure 3 Cross-sectional view at the AA axis; Figure 5 For the Figure 4 Cross-sectional view at the BB axis; Figure 6 This is a schematic diagram of the structure of the arc-shaped inner rod, support assembly, sealing block, and rigid rod of the present invention; Figure 7 For the present invention Figure 6 Exploded view of the structure shown; Figure 8 This is a schematic diagram of the installation of the driver component of the present invention; Figure 9 This is a schematic diagram of the fixture of the present invention; Figure 10 This is a schematic diagram of the cutting assembly of the present invention; Figure 11 This is a flowchart of the method of using the present invention.

[0018] The attached diagram is labeled as follows: 1. Frame; 2. Cutting assembly; 21. Column; 22. Swing arm; 23. Motor; 24. Saw blade; 25. Cylinder 1; 3. Clamp; 31. Slide rail 1; 32. Slide block 1; 33. Cylinder 2; 34. Clamping plate 1; 35. Clamping plate 2; 4. Arc-shaped outer rod; 5. Arc-shaped inner rod; 51. Air passage; 52. Through hole 1; 53. Support hole; 54. Side groove; 6. Support block 1; 61. 7. Protrusion; 7. Support assembly; 71. Support block two; 711. Air chamber; 712. Through hole two; 713. Through hole; 72. Top block; 721. Movable column; 73. Spring; 8. Sealing block; 81. Locking block; 9. Rigid rod; 91. Spring piece; 92. Wedge block; 100. Drive assembly; 101. Slide rail two; 102. Slide seat two; 103. Cylinder three; 110. Cylinder four; 120. Pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Refer to the instruction manual appendix Figures 1-11 A cutting device for processing high silicon aluminum alloy workpieces includes a frame 1, a cutting assembly 2 mounted on the frame 1, and clamps 3 on both sides of the cutting assembly 2, the two clamps 3 being used to clamp the tube 120.

[0021] Among them, Figure 10 As shown, the cutting assembly 2 includes a column 21 fixedly mounted on the frame 1, a swing arm 22 rotatably connected to the column 21, a motor 23 mounted at the front end of the swing arm 22, a saw blade 24 mounted at the output end of the motor 23, and a cylinder 25, the two ends of the cylinder 25 being hinged to the front end of the column 21 and the swing arm 22 respectively.

[0022] It should be noted that the fixed end of cylinder 25 is hinged to the upper end of column 21, the movable end is hinged to the front end of swing arm 22, and the rear end of swing arm 22 is hinged to column 21. During cutting, cylinder 25 pushes swing arm 22 to swing downward, thereby motor 23 drives saw blade 24 to cut pipe 120.

[0023] Among them, Figure 9As shown, the fixture 3 includes a slide rail 31 fixedly mounted on the frame 1, a slide block 32 slidably mounted on the slide rail 31, a clamping plate 34 mounted on the front side of the slide block 32, a clamping plate 35 fixedly mounted on the front side of the clamping plate 34 and fixedly mounted on the frame 1, and a cylinder 33 mounted on the frame 1, the output end of the cylinder 33 being fixed to the slide block 32.

[0024] It should be noted that cylinder 2 33 pushes slide 1 32, causing clamping plates 1 34 and 2 35 to clamp the pipe 120. The shape of the opposite side of clamping plates 1 34 and 2 35 is adapted to the shape of the surface of the pipe 120, so that clamping plates 1 34 and 2 35 can stably clamp the pipe 120 without shaking.

[0025] In this embodiment, the frame 1 is provided with an arc-shaped outer rod 4 and an arc-shaped inner rod 5. The arc-shaped inner rod 5 can slide around the central axis of the arc-shaped outer rod 4 inside the arc-shaped outer rod 4. A support block 6 is fixedly installed at the front end of the arc-shaped outer rod 4, and a support assembly 7 is provided at the front end of the arc-shaped inner rod 5. The support assembly 7 includes a support block 71, and the front end of the arc-shaped inner rod 5 is detachably connected to the support block 71. The support block 6 and the support block 71 are used to support the inside of the pipe 120, and the gap width between the support block 6 and the support block 71 is equal to the width of the saw blade 24 of the cutting assembly 2.

[0026] Among them, support block 6 and support block 71 can slide around the central axis of the pipe 120 inside the pipe 120. That is, support block 6 and support block 71 are also arc-shaped, and support block 6, support block 71, arc-shaped outer rod 4, arc-shaped inner rod 5 and the central axis of the pipe 120 are collinear.

[0027] Furthermore, such as Figure 4 and Figure 5 As shown, air chambers 711 are provided on both the upper and lower sides of the support assembly 7. A top block 72 is provided inside the air chamber 711, and a spring 73 is sleeved on the outside of the top block 72. The spring 73 is used to reset the top block 72 towards the middle of the support block 71. The bottom of the air chamber 711 has a through hole 712. An air passage 51 is provided inside the arc-shaped inner rod 5. The front end of the arc-shaped inner rod 5 has a through hole 52 that communicates with the air passage 51. The through hole 52 communicates with the through hole 712. The device also includes an air pump, and the output end of the air pump is connected to the air passage 51.

[0028] It should be noted that the air pump is connected to the air passage 51 via a control valve and an exhaust valve. The air passage 51 is connected to the air chamber 711 via a through hole 52. Thus, the air pump can inflate the air chamber 711, causing the top block 72 to move outward from the air chamber 711 and press against the inner surface of the pipe 120. The control valve is used to control the opening and closing of the air pump passage. When the exhaust valve is open, the gas in the air chamber 711 is discharged sequentially through the through hole 52, the air passage 51, and the exhaust valve. Then, under the action of the spring 73, the top block 72 is reset towards the center of the support block 71. That is, by inflating and deflating the air, the top block 72 can be pressed and released against the inner surface of the pipe 120.

[0029] Furthermore, such as Figures 5-7 As shown, a through hole 713 is provided on one side of the bottom of the air chamber 711, and a movable column 721 is fixedly connected to the bottom of the top block 72. The movable column 721 is vertically slidably installed in the through hole 713. A support hole 53 is provided on the surface of the arc-shaped inner rod 5, and the movable column 721 is used to be inserted into the support hole 53.

[0030] It should be noted that when the top block 72 moves outward from the support block 71, the movable column 721 moves out of the support hole 53. When the top block 72 is reset to the middle of the support block 71 by the spring 73, the movable column 721 is inserted into the through hole 713.

[0031] Furthermore, such as Figures 5-7 As shown, a sealing block 8 is slidably installed in the middle of the support block 2 71, and the sealing block 8 is used to seal the through hole 2 712.

[0032] It should be noted that after air is filled into the air chamber 711, the sealing block 8 moves to the bottom of the second through hole 712 to seal the second through hole 712.

[0033] Furthermore, such as Figures 5-7 As shown, side grooves 54 are provided on both sides of the front end of the arc-shaped inner rod 5. Rigid rods 9 are provided inside the two side grooves 54. A wedge block 92 is fixedly connected to the front end of the rigid rod 9. Both sides of the front end of the sealing block 8 have locking blocks 81. The wedge block 92 is used to engage with the locking blocks 81.

[0034] It should be noted that the rigid rod 9 will not deform after being pressed by the protrusion 61, and the wedge block 92 has an inclined surface, such as Figure 4 As shown, along the inclined plane, wedge block 92 can engage with locking block 81.

[0035] Furthermore, such as Figures 5-7As shown, a spring piece 91 is fixedly connected to the rear end of the rigid rod 9. The spring piece 91 is fixedly connected to the side wall of the side groove 54. Both sides of the support block 6 are fixedly connected to protrusions 61. The two protrusions 61 are used to push the two spring pieces 91 and the rigid rod 9 respectively, so that the wedge block 92 is separated from the locking block 81.

[0036] It should be noted that when the protrusion 61 presses against the spring 91 and the wedge block 92, the spring 91 can deform, thereby causing the two wedge blocks 92 to move towards the center to disengage from the locking block 81.

[0037] In this embodiment, as Figure 1 and Figure 8 As shown, a drive assembly 100 is installed on the frame 1. The drive assembly 100 includes an arc-shaped slide rail 101, a slide block 102, and a cylinder 103. The slide rail 101 is fixedly installed on the frame 1. The slide block 102 is slidably connected to the slide rail 101 and is fixedly connected to the arc-shaped outer rod 4. The two ends of the cylinder 103 are respectively hinged to the frame 1 and the slide block 102. A cylinder 110 is provided on the slide block 102. The two ends of the cylinder 110 are respectively hinged to the slide block 102 and the arc-shaped inner rod 5.

[0038] It should be noted that the extension and retraction of cylinder 4 110 can drive the arc-shaped inner rod 5 to slide, while the extension and retraction of cylinder 3 103 can drive the slide block 2 102 to slide on the slide rail 2 101, so that the slide block 2 102 can drive the arc-shaped outer rod 4 and the arc-shaped inner rod 5 to move together.

[0039] In this embodiment, the specific implementation method is as follows: Figure 4 and Figure 5 As shown, when the initial support block 6 and support assembly 7 are not inserted into the tube 120, the arc-shaped inner rod 5 is inserted into the support block 71, and the through hole 52 and the through hole 712 are connected. The movable column 721 is inserted into the support hole 53, and the wedge block 92 engages with the locking block 81. When cutting the high silicon aluminum alloy tube 120, the following steps are performed.

[0040] (1) First, as Figure 1 As shown, two clamps 3 are used to hold the pipe 120 so that the position of the pipe 120 to be cut is directly below the saw blade 24.

[0041] (2) Then, the cylinder 3 103 drives the slide 2 102 to move, and the pipe 120 drives the arc-shaped outer rod 4, the arc-shaped inner rod 5, the support block 1 6 and the support assembly 7 to move (since the movable column 721 is inserted into the support hole 53, the support block 2 71 can move together with the arc-shaped inner rod 5), so that it is inserted into the inside of the pipe 120 from one end of the pipe 120. By controlling the stroke of the slide 2 102, the support block 1 6 and the support block 2 71 are respectively supported on both sides of the pipe 120 where it needs to be cut. At this time, the gap width between the support block 1 6 and the support block 2 71 is equal to the width of the saw blade 24 of the cutting assembly 2, so as to ensure that the support block 1 6 and the support block 2 71 can be supported at the cut position of the pipe 120 during cutting, so that the cut of the pipe 120 will not deform inward.

[0042] (3) After insertion, use an air pump to inflate the air. The gas enters the air chamber 711 through the air passage 51, through hole 1 52, and through hole 2 712 in sequence, causing the top block 72 to be pushed away from the middle of the support block 2 71, so that the top block 72 presses on the inner surface of the tube 120. At this time, the movable column 721 moves away from the support hole 53. In this state, the support block 2 71 is detached from the arc-shaped inner rod 5.

[0043] (4) Close the control valve and drive the arc-shaped inner rod 5 outward through the cylinder 110. Since the top block 72 is pressed inside the pipe 120 and the movable column 721 is disengaged from the support hole 53, the support block 71 will not move. The arc-shaped inner rod 5 can drive the sealing block 8 to move through the rigid rod 9, so that the sealing block 8 moves below the through hole 712 and closes the through hole 712. When the arc-shaped inner rod 5 continues to move outward, the protrusion 61 pushes the spring 91 and the rigid rod 9, causing the spring 91 to deform. The two rigid rods 9 move to the side that is closer to each other, so that the wedge block 92 disengages from the locking block 81 and the sealing block 8 stops moving. The arc-shaped inner rod 5 continues to move away from the gap between the support block 6 and the support block 71. Rubber can be provided on both sides of the sealing block 8 to increase the resistance of the locking block 81 and prevent the sealing block 8 from moving during cutting.

[0044] (5) Use the cutting assembly 2 to cut the pipe 120.

[0045] (6) After the cutting is completed, cylinder 4 110 drives the arc-shaped inner rod 5 to move, so that the arc-shaped inner rod 5 inserts into the support block 2 71. The arc-shaped inner rod 5 pushes the sealing block 8 to move, so that the through hole 1 52 reconnects with the through hole 2 712. The exhaust valve is opened to exhaust the air. Under the action of spring 73, the top block 72 is reset, the movable column 721 is re-engaged into the interior of the support hole 53, and the wedge block 92 is also engaged with the locking block 81. Then cylinder 3 103 drives the arc-shaped outer rod 4 and the arc-shaped inner rod 5 to move, thereby removing the cut pipe 120.

[0046] (7) Re-clamp the pipe 120 and repeat (2)-(6) to cut.

[0047] The above technical solution supports the pipe 120 at the cutting position by supporting the first support block 6 and the second support block 71, so that the cut material of the pipe 120 will not deform inward during the cutting process. By setting the arc-shaped inner rod 5 and the second support block 71 to be detachable, the arc-shaped inner rod 5 moves away from the gap between the first support block 6 and the second support block 71 during the cutting process, so that the arc-shaped inner rod 5 will not be hit during the cutting process. During the cutting process, the pipe 120 can be completely cut without rotating it.

[0048] In this embodiment, as Figures 1-11 As shown, a method for using a cutting device for machining high-silicon aluminum alloy workpieces is also provided, including the following steps: Step 1: Use two clamps 3 to hold the pipe 120; Step 2: Insert the arc-shaped outer rod 4 and the arc-shaped inner rod 5 into the interior of the pipe 120, so that the support block 1 6 and the support block 2 71 are respectively supported on both sides of the part of the pipe 120 that needs to be cut; Step 3: The inner arc rod 5 slides relative to the outer arc rod 4 so that the inner arc rod 5 disengages from the second support block 71, so that the inner arc rod 5 does not extend to the gap between the first support block 6 and the second support block 71.

[0049] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting device for processing high-silicon aluminum alloy workpieces, characterized in that: Includes a frame (1), on which a cutting assembly (2) is mounted, and clamps (3) are provided on both sides of the cutting assembly (2), and the two clamps (3) are used to clamp the pipe (120). The frame (1) is provided with an arc-shaped outer rod (4) and an arc-shaped inner rod (5). The arc-shaped inner rod (5) can slide around the central axis of the arc-shaped outer rod (4) inside the arc-shaped outer rod (4). A support block one (6) is fixedly installed at the front end of the arc-shaped outer rod (4). A support assembly (7) is provided at the front end of the arc-shaped inner rod (5). The support assembly (7) includes a support block two (71). The front end of the arc-shaped inner rod (5) is detachably connected to the support block two (71). The support block one (6) and support block two (71) are used to support the inside of the pipe (120), and the gap width between support block one (6) and support block two (71) is equal to the width of the saw blade (24) of the cutting assembly (2).

2. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 1, characterized in that: The support assembly (7) has air chambers (711) on its upper and lower sides. A top block (72) is provided inside the air chamber (711). A spring (73) is sleeved on the outside of the top block (72). The spring (73) is used to reset the top block (72) towards the middle of the support block (71). The bottom of the air chamber (711) has a through hole (712). An air passage (51) is provided inside the arc-shaped inner rod (5). The front end of the arc-shaped inner rod (5) has a through hole (52) that communicates with the air passage (51). The through hole (52) is used to communicate with the through hole (712). The device also includes an air pump. The output end of the air pump is connected to the air passage (51).

3. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 2, characterized in that: A through hole (713) is provided on one side of the bottom of the air chamber (711). A movable column (721) is fixedly connected to the bottom of the top block (72). The movable column (721) is vertically slidably installed in the through hole (713). A support hole (53) is provided on the surface of the arc-shaped inner rod (5). The movable column (721) is used to be inserted into the support hole (53).

4. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 2, characterized in that: A sealing block (8) is slidably installed in the middle of the second support block (71), and the sealing block (8) is used to seal the second through hole (712).

5. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 4, characterized in that: The front end of the arc-shaped inner rod (5) is provided with side grooves (54) on both sides. Rigid rods (9) are provided inside the two side grooves (54). A wedge block (92) is fixedly connected to the front end of the rigid rod (9). The front end of the sealing block (8) is provided with a locking block (81) on both sides. The wedge block (92) is used to engage with the locking block (81).

6. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 5, characterized in that: The rear end of the rigid rod (9) is fixedly connected to a spring piece (91), the spring piece (91) is fixedly connected to the side wall of the side groove (54), and both sides of the support block (6) are fixedly connected to protrusions (61). The two protrusions (61) are used to push the two spring pieces (91) and the rigid rod (9) respectively, so that the wedge block (92) is separated from the locking block (81).

7. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 1, characterized in that: A drive assembly (100) is installed on the frame (1). The drive assembly (100) includes an arc-shaped slide rail (101), a slide block (102), and a cylinder (103). The slide rail (101) is fixedly installed on the frame (1). The slide block (102) is slidably connected to the slide rail (101) and is fixedly connected to the arc-shaped outer rod (4). The two ends of the cylinder (103) are respectively hinged to the frame (1) and the slide block (102). A cylinder (110) is provided on the slide block (102). The two ends of the cylinder (110) are respectively hinged to the slide block (102) and the arc-shaped inner rod (5).

8. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 1, characterized in that: The cutting assembly (2) includes a column (21) fixedly mounted on a frame (1), a swing arm (22) rotatably connected to the column (21), a motor (23) mounted at the front end of the swing arm (22), a saw blade (24) mounted at the output end of the motor (23), and a cylinder (25) further includes cylinder (25) with its two ends hinged to the front ends of the column (21) and the swing arm (22), respectively.

9. The cutting device for processing high-silicon aluminum alloy workpieces according to claim 1, characterized in that: The clamp (3) includes a slide rail (31) fixedly installed on the frame (1), a slide block (32) slidably installed on the slide rail (31), a clamping plate (34) installed on the front side of the slide block (32), a clamping plate (35) fixedly installed on the front side of the clamping plate (34) and fixedly installed on the frame (1), and a cylinder (33) installed on the frame (1), the output end of the cylinder (33) being fixed to the slide block (32).

10. A method of using a cutting device for machining high-silicon aluminum alloy workpieces, characterized in that, Includes the following steps: Step 1: Use two clamps (3) to hold the pipe (120); Step 2: Insert the arc-shaped outer rod (4) and the arc-shaped inner rod (5) into the interior of the pipe (120), so that the support block 1 (6) and the support block 2 (71) are respectively supported on both sides of the part of the pipe (120) that needs to be cut; Step 3: The inner arc rod (5) slides relative to the outer arc rod (4) so ​​that the inner arc rod (5) disengages from the second support block (71) so that the inner arc rod (5) does not extend to the gap between the first support block (6) and the second support block (71).

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