A cutting device for machining high-silicon aluminum alloy workpieces and a method of using the same

Abstract

The application discloses a cutting device for high-silicon aluminum alloy workpiece machining and a use method thereof, and particularly relates to the cutting field. The cutting device comprises a rack, a cutting assembly is installed on the rack, clamps are arranged on both 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 interior of the arc-shaped outer rod around the central axis of the arc-shaped outer rod, a support block one is fixedly installed at the front end of the arc-shaped outer rod, and a support assembly is arranged at the front end of the arc-shaped inner rod. According to the application, the support block one and the support block two are supported at the cutting position of the pipe to be cut, so that the pipe cut material cannot be deformed inwardly during cutting. The arc-shaped inner rod and the support block two are arranged in a detachable and separable mode, the arc-shaped inner rod is away from the gap position between the support block one and the support block two during cutting, and the arc-shaped inner rod cannot be contacted during cutting.

Description

TECHNICAL FIELD

[0001] The present application relates to the cutting technical field, more particularly, the present application relates to a kind of high silicon aluminum alloy workpiece machining cutting device and its use method. BACKGROUND

[0002] High silicon aluminum alloy is a kind of metal material with promising application, silicon content is usually between 10%-30%, not only can maintain excellent performance in high temperature environment, also has excellent casting and machinability.In electronic packaging, automobile parts, aerospace field, and because its appearance is beautiful, corrosion resistance is strong, also be applied to building materials.

[0003] When high silicon aluminum alloy pipe is cut, pipe cutting machine is used, and for thin-walled pipe, the cut is easy to deform inside during cutting, and in the prior art, support members are arranged on both sides of the cut position inside the pipe to prevent deformation.During processing, since the pipe is long, two support members need to be inserted from one end of the pipe, therefore, a connecting member needs to be arranged between the two support members, and during cutting, the pipe is rotated while cutting, so that the cutting purpose can be achieved, and the connecting member can be avoided to be cut.

[0004] The above solution is relatively easy to achieve for straight pipes, because straight pipes can be directly driven to rotate.For arc-shaped pipe, due to the characteristics of arc shape, it cannot rotate after being clamped by multiple points, and if forced to cut, the connecting member will be cut. SUMMARY

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

[0006] To achieve the above object, the present application provides the following technical scheme: a kind of high silicon aluminum alloy workpiece machining cutting device, including rack, cutting assembly is installed on the rack, both sides of cutting assembly are provided with clamp, and the two clamps are used to clamp pipe;Rack is provided with arc-shaped outer rod and arc-shaped inner rod, arc-shaped inner rod can slide in the inside of arc-shaped outer rod around the central axis of arc-shaped outer rod, the front end of arc-shaped outer rod is fixedly installed with support block one, the front end of arc-shaped inner rod is provided with support assembly, support assembly includes support block two, and the front end of arc-shaped inner rod is detachably connected with support block two;Support block one and support block two are used to support in the inside of pipe, and the gap width between support block one and support block two is equal to the width of saw blade of cutting assembly.

[0007] In a preferred implementation form, the upper side and the lower side of the support assembly are provided with air cavities, the air cavities are provided with top blocks, the outer side of the top block is provided with a spring, the spring is used for resetting the top block to the middle part of the support block two, the bottom of the air cavity is provided with a through hole two, the inner side of the arc-shaped inner rod is provided with an air channel, the front end of the arc-shaped inner rod is provided with a through hole one in communication with the air channel, the through hole one is used for communication with the through hole two; the device further comprises a gas pump, the output end of the gas pump is in communication with the air channel.

[0008] In a preferred implementation form, the bottom of the top block is fixedly connected with a movable column, the movable column is vertically and slidingly installed in the through hole, the surface of the arc-shaped inner rod is provided with a support hole, and the movable column is used for being inserted into the support hole.

[0009] In a preferred implementation form, the middle part of the support block two is slidingly installed with a blocking block, and the blocking block is used for blocking the through hole two.

[0010] In a preferred implementation form, the two sides of the front end of the arc-shaped inner rod are provided with side grooves, the inner sides of the two side grooves are provided with rigid rods, the front end of the rigid rod is fixedly connected with a wedge-shaped block, the two sides of the front end of the blocking block are provided with clamping blocks, and the wedge-shaped block is used for clamping the clamping blocks.

[0011] In a preferred implementation form, the rear end of the rigid rod is fixedly connected with an elastic sheet, the elastic sheet is fixedly connected with the side wall of the side groove, the inner sides of the support block one are fixedly connected with protruding blocks, and the two protruding blocks are respectively used for pushing the two elastic sheets and the rigid rod, so that the wedge-shaped block is separated from the clamping blocks.

[0012] In a preferred implementation form, the rack is provided with a driving assembly, the driving assembly comprises an arc-shaped sliding rail two, a sliding seat two and a gas cylinder three, the sliding rail two is fixedly installed on the rack, the sliding seat two is slidingly connected on the sliding rail two, and the sliding seat two is fixedly connected with the arc-shaped outer rod, the two ends of the gas cylinder three are respectively hinged with the rack and the sliding seat two, and the sliding seat two is provided with a gas cylinder four, the two ends of the gas cylinder four are respectively hinged with the sliding seat two and the arc-shaped inner rod.

[0013] In a preferred implementation form, the cutting assembly comprises a stand column fixedly installed on the rack, the stand column is rotatably connected with a swing arm, the front end of the swing arm is installed with a motor, the output end of the motor is installed with a saw blade, and the cutting assembly further comprises a gas cylinder one, the two ends of the gas cylinder one are respectively hinged with the stand column and the front end of the swing arm.

[0014] In a preferred implementation form, the clamp comprises a sliding rail one fixedly installed on the rack, a sliding seat one slidingly installed on the sliding rail one, a clamping plate one installed on the front side of the sliding seat one, a clamping plate two fixedly installed on the rack and provided with the clamping plate one on the front side, a gas cylinder two installed on the rack, and the output end of the gas cylinder two is fixed with the sliding seat one.

[0015] The application also provides a method for using the cutting device for processing high-silicon aluminum alloy workpieces, which comprises the following steps:

[0016] Step one: clamping the pipe material by using two clamps;

[0017] Step two: extending the arc-shaped outer rod and the arc-shaped inner rod into the interior of the pipe material, so that the support block one and the support block two are supported on both sides of the pipe material to be cut;

[0018] Step three: sliding the arc-shaped inner rod relative to the arc-shaped outer rod, so that the arc-shaped inner rod is separated from the support block two, and the arc-shaped inner rod does not extend to the gap position between the support block one and the support block two.

[0019] The application has the following technical effects and advantages: the support block one and the support block two are supported at the cutting position of the pipe material to be cut, so that the pipe material cuttings do not deform inwardly during cutting; the arc-shaped inner rod and the support block two are arranged in a detachable and separable manner, so that the arc-shaped inner rod is separated from the gap position between the support block one and the support block two during cutting, and the arc-shaped inner rod does not interfere with the cutting, and the pipe material can be completely cut without rotating the pipe material during the cutting process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the application;

[0021] Figure 2 It is a schematic diagram of the installation of the arc-shaped outer rod, the arc-shaped inner rod, the support block one and the support block two of the application;

[0022] Figure 3 It is a top view of the application; Figure 2

[0023] Figure 4 It is a sectional view along the A-A axis of the application; Figure 3

[0024] Figure 5 It is a sectional view along the B-B axis of the application; Figure 4

[0025] Figure 6 It is a schematic diagram of the structure of the arc-shaped inner rod, the support assembly, the blocking block and the rigid rod of the application;

[0026] Figure 7 It is an explosion view of the structure shown in the application; Figure 6

[0027] It is a schematic diagram of the installation of the driving assembly of the application; Figure 8

[0028] Figure 9 It is a schematic diagram of the structure of the clamp of the application;​​​​

[0029] Figure 10 Structure diagram of cutting assembly of the present application;

[0030] Figure 11 Flow chart of using method of the present application.

[0031] The figure marks are: 1, rack; 2, cutting assembly; 21, stand; 22, swing arm; 23, motor; 24, saw blade; 25, cylinder one; 3, clamp; 31, slide rail one; 32, slide seat one; 33, cylinder two; 34, clamping plate one; 35, clamping plate two; 4, arc outer rod; 5, arc inner rod; 51, air channel; 52, through hole one; 53, support hole; 54, side groove; 6, support block one; 61, protruding block; 7, support assembly; 71, support block two; 711, air cavity; 712, through hole two; 713, through hole; 72, top block; 721, movable column; 73, spring; 8, plugging block; 81, clamping block; 9, rigid rod; 91, elastic sheet; 92, wedge block; 100, driving assembly; 101, slide rail two; 102, slide seat two; 103, cylinder three; 110, cylinder four; 120, pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0033] Referring to the drawings in the description Figures 1-11 A cutting device for machining high-silicon aluminum alloy workpieces, comprising a rack 1, a cutting assembly 2 is installed on the rack 1, clamps 3 are arranged on both sides of the cutting assembly 2, and the two clamps 3 are used to clamp a pipe 120.

[0034] As shown in Figure 10 the cutting assembly 2 comprises a stand 21 fixedly installed on the rack 1, a swing arm 22 rotationally connected to the stand 21, a motor 23 installed at the front end of the swing arm 22, a saw blade 24 installed at the output end of the motor 23, and a cylinder one 25, the two ends of the cylinder one 25 are respectively hinged to the stand 21 and the front end of the swing arm 22.

[0035] It should be noted that the fixed end of the cylinder one 25 is hinged to the upper end of the stand 21, the movable end is hinged to the front end of the swing arm 22, the rear end of the swing arm 22 is hinged to the stand 21, and during cutting, the cylinder one 25 pushes the swing arm 22 to swing downward, so that the motor 23 drives the saw blade 24 to cut the pipe 120.

[0036] As shown in Figure 9 The clamp 3 comprises a sliding rail one 31 fixedly installed on the rack 1, a sliding seat one 32 slidingly installed on the sliding rail one 31, a clamping plate one 34 installed on the front side of the sliding seat one 32, a clamping plate two 35 fixedly installed on the rack 1 and located on the front side of the clamping plate one 34, a cylinder two 33 installed on the rack 1 and having an output end fixedly connected with the sliding seat one 32.

[0037] It should be noted that the cylinder two 33 pushes the sliding seat one 32, so that the clamping plate one 34 and the clamping plate two 35 clamp the pipe 120, wherein the shape of the opposite side of the clamping plate one 34 and the clamping plate two 35 is adapted to the shape of the surface of the pipe 120, so that the clamping plate one 34 and the clamping plate two 35 can stably clamp the pipe 120 and cannot shake.

[0038] In the embodiment, the rack 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 in the inside of the arc-shaped outer rod 4 around the central axis of the arc-shaped outer rod 4, the front end of the arc-shaped outer rod 4 is fixedly installed with a support block one 6, and the front end of the arc-shaped inner rod 5 is provided with a support assembly 7, the support assembly 7 comprises a support block two 71, and the front end of the arc-shaped inner rod 5 is detachably connected with the support block two 71; the support block one 6 and the support block two 71 are used for supporting in the inside of the pipe 120, and the gap width between the support block one 6 and the support block two 71 is equal to the width of the saw blade 24 of the cutting assembly 2.

[0039] The support block one 6 and the support block two 71 can slide in the inside of the pipe 120 around the central axis of the pipe 120, that is, the support block one 6 and the support block two 71 are also arc-shaped, and the central axes of the support block one 6, the support block two 71, the arc-shaped outer rod 4, the arc-shaped inner rod 5 and the pipe 120 are collinear.

[0040] Further, as shown in Figure 4 and Figure 5 The upper side and the lower side of the inside of the support assembly 7 are both provided with air cavities 711, the inside of the air cavities 711 is provided with a top block 72, the outside of the top block 72 is sleeved with a spring 73, the spring 73 is used for resetting the top block 72 to the middle part of the support block two 71, the bottom of the air cavity 711 has a through hole two 712, the inside of the arc-shaped inner rod 5 is provided with an air channel 51, the front end of the arc-shaped inner rod 5 has a through hole one 52 in communication with the air channel 51, the through hole one 52 is used for communicating with the through hole two 712; the device further comprises an air pump, and the output end of the air pump is in communication with the air channel 51.

[0041] It should be noted that the air pump is communicated with the air passage 51 through the control valve and the exhaust valve in turn, and the air passage 51 is communicated with the air cavity 711 through the through hole one 52, so that the air cavity 711 can be inflated by the air pump, so that the top block 72 moves to the outside of the air cavity 711, and is pressed on the inner surface of the pipe 120. Wherein, the control valve is used to control the opening and closing of the air pump pipeline, when the exhaust valve is opened, the gas in the air cavity 711 is discharged through the through hole one 52, the air passage 51 and the exhaust valve in turn, and then the top block 72 is reset to the middle of the support block two 71 under the action of the spring 73, that is, through inflation and deflation, the top block 72 can press and relax the inner surface of the pipe 120.

[0042] Further, as shown in Figures 5-7 The bottom of the air cavity 711 is provided with a through hole 713, and the bottom of the top block 72 is fixedly connected with a movable column 721, which is vertically slidably installed in the through hole 713. The surface of the arc-shaped inner rod 5 is provided with a supporting hole 53, and the movable column 721 is used to be inserted into the supporting hole 53.

[0043] It should be noted that when the top block 72 moves to the outside of the support block two 71, the movable column 721 moves out of the supporting hole 53, and when the top block 72 is reset to the middle of the support block two 71 by the spring 73, the movable column 721 is inserted into the inside of the through hole 713.

[0044] Further, as shown in Figures 5-7 The middle of the support block two 71 is slidably installed with a blocking block 8, which is used to block the through hole two 712.

[0045] It should be noted that after the air cavity 711 is inflated, the blocking block 8 is moved to the bottom of the through hole two 712 to block the through hole two 712.

[0046] Further, as shown in Figures 5-7 The two sides of the front end of the arc-shaped inner rod 5 are provided with side grooves 54, and the inside of the two side grooves 54 is provided with a rigid rod 9, the front end of the rigid rod 9 is fixedly connected with a wedge-shaped block 92, and the two sides of the front end of the blocking block 8 are provided with a clamping block 81, and the wedge-shaped block 92 is used to be clamped with the clamping block 81.

[0047] It should be noted that the rigid rod 9 will not be deformed after being extruded by the convex block 61, and the wedge-shaped block 92 has a slope, as shown in Figure 4 Along the slope, the wedge-shaped block 92 can be clamped with the clamping block 81.

[0048] Further, as shown in Figures 5-7As shown, the rear end of the rigid rod 9 is fixedly connected with an elastic sheet 91, the elastic sheet 91 is fixedly connected with the side wall of the side groove 54, both sides of the inside of the support block one 6 are fixedly connected with protrusions 61, and the two protrusions 61 are respectively used for pushing and pressing the two elastic sheets 91 and the rigid rod 9, so that the wedge-shaped blocks 92 are separated from the clamping blocks 81.

[0049] It should be noted that when the protrusions 61 extrude the elastic sheets 91 and the wedge-shaped blocks 92, the elastic sheets 91 can be deformed, so that the two wedge-shaped blocks 92 move to the middle to be separated from the clamping blocks 81.

[0050] In the embodiment, as shown in Figure 1 and Figure 8 , the rack 1 is provided with a driving assembly 100, the driving assembly 100 includes an arc-shaped slide rail two 101, a slide block two 102 and a cylinder three 103, the slide rail two 101 is fixedly installed on the rack 1, the slide block two 102 is slidingly connected with the slide rail two 101, and the slide block two 102 is fixedly connected with the arc-shaped outer rod 4, the cylinder three 103 is hingedly connected with the rack 1 and the slide block two 102 at both ends, and the slide block two 102 is provided with a cylinder four 110, and the cylinder four 110 is hingedly connected with the slide block two 102 and the arc-shaped inner rod 5 at both ends.

[0051] It should be noted that the extension and retraction of the cylinder four 110 can drive the arc-shaped inner rod 5 to slide, and the extension and retraction of the cylinder three 103 can drive the slide block two 102 to slide on the slide rail two 101, so that the slide block two 102 can drive the arc-shaped outer rod 4 and the arc-shaped inner rod 5 to move together.

[0052] In the embodiment, the implementation is specifically: Figure 4 and Figure 5 As shown, when the initial support block one 6 and the support assembly 7 are not inserted into the inside of the pipe material 120, the arc-shaped inner rod 5 is inserted into the inside of the support block two 71, the through hole one 52 and the through hole two 712 are communicated, the movable column 721 is inserted into the support hole 53, the wedge-shaped block 92 is clamped with the clamping block 81, and when the pipe material 120 of high-silicon aluminum alloy is cut, the following steps are performed.

[0053] (1) First, as shown in Figure 1 , the pipe material 120 is clamped by using two clamps 3, so that the position of the pipe material 120 to be cut is located directly below the saw blade 24.

[0054] (2) Then, the pipe 120 drives the arc-shaped outer rod 4, the arc-shaped inner rod 5, the support block one 6 and the support assembly 7 to move by the slide block two 102 driven by the cylinder three 103 (since the movable column 721 is inserted into the inside of the support hole 53, the support block two 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, the stroke of the slide block two 102 is controlled, the support block one 6 and the support block two 71 are supported on both sides of the pipe 120 at the position where cutting is needed respectively, and at this time, the gap width between the support block one 6 and the support block two 71 is equal to the width of the saw blade 24 of the cutting assembly 2, so as to ensure that the support block one 6 and the support block two 71 can be supported at the cutting position of the pipe 120 during cutting, and the cutting of the pipe 120 will not deform inward.

[0055] (3) After insertion, the gas pump is used to inflate, the gas enters the inside of the air cavity 711 in sequence through the air channel 51, the through hole one 52 and the through hole two 712, the top block 72 is pushed away from the middle of the support block two 71, so that the top block 72 is pressed on the inner surface of the pipe 120, at this time, the movable column 721 moves away from the support hole 53, and in this state, the support block two 71 is in a disengaged state with the arc-shaped inner rod 5.

[0056] (4) The control valve is closed, the arc-shaped inner rod 5 is driven to move outward by the cylinder four 110, since the top block 72 is pressed on the inside of the pipe 120, and the movable column 721 is disengaged from the support hole 53, the support block two 71 will not move, the arc-shaped inner rod 5 can drive the blocking block 8 to move by the rigid rod 9, so that the blocking block 8 moves below the through hole two 712 to close the through hole two 712. When the arc-shaped inner rod 5 continues to move outward, the convex block 61 pushes the spring sheet 91 and the rigid rod 9, so that the spring sheet 91 is deformed, the two rigid rods 9 move to the side close to each other, so that the wedge-shaped block 92 is disengaged from the clamping block 81, and the blocking block 8 no longer moves. The arc-shaped inner rod 5 continues to move away from the gap between the support block one 6 and the support block two 71. The rubber can be arranged on both sides of the blocking block 8 to increase the resistance of the clamping block 81 to move, so as to prevent the blocking block 8 from moving during cutting.

[0057] (5) The pipe 120 is cut by using the cutting assembly 2.

[0058] (6) After cutting, the arc-shaped inner rod 5 is moved by the cylinder four 110, so that the arc-shaped inner rod 5 is inserted into the support block two 71, the arc-shaped inner rod 5 drives the blocking block 8 to move, so that the through hole one 52 is communicated with the through hole two 712 again, the exhaust valve is opened to exhaust, under the action of the spring 73, the top block 72 is reset, the movable column 721 is re-inserted into the inside of the support hole 53, the wedge-shaped block 92 is also engaged with the clamping block 81, then the arc-shaped outer rod 4 and the arc-shaped inner rod 5 are moved by the cylinder three 103, so as to remove the cut pipe 120.

[0059] (7) Re-clamping the pipe 120, repeating (2)-(6) to cut.

[0060] The above technical solution supports the support block one 6 and the support block two 71 at the cutting position of the pipe 120, so that the pipe 120 cut material does not deform inward during cutting. The arc-shaped inner rod 5 and the support block two 71 are arranged in a detachable manner, and during cutting, the arc-shaped inner rod 5 is away from the gap position between the support block one 6 and the support block two 71, so that the arc-shaped inner rod 5 does not interfere with the cutting. During cutting, the pipe 120 does not need to be rotated to achieve complete cutting.

[0061] In this embodiment, as shown in Figures 1-11 A method for using the cutting device for machining high-silicon aluminum alloy workpieces is also provided, including the following steps:

[0062] Step one: use two clamps 3 to clamp the pipe 120;

[0063] Step two: extend the arc-shaped outer rod 4 and the arc-shaped inner rod 5 into the pipe 120, and support the support block one 6 and the support block two 71 on both sides of the pipe 120 cutting position;

[0064] Step three: slide the arc-shaped inner rod 5 relative to the arc-shaped outer rod 4 to separate the arc-shaped inner rod 5 from the support block two 71, so that the arc-shaped inner rod 5 does not extend to the gap position between the support block one 6 and the support block two 71.

[0065] Finally, the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A cutting apparatus for machining a high-silicon aluminum alloy workpiece, characterized by: Including frame (1), the frame (1) is installed with cutting assembly (2), both sides of cutting assembly (2) are provided with clamp (3), two clamps (3) are used for clamping pipe (120); The frame (1) is provided with arc outer rod (4) and arc inner rod (5), the arc inner rod (5) can slide in the inside of arc outer rod (4) around the central axis of arc outer rod (4), the front end of arc outer rod (4) is fixedly installed with support block one (6), the front end of arc inner rod (5) is provided with support assembly (7), support assembly (7) includes support block two (71), the front end of arc inner rod (5) is detachably connected with support block two (71); The support block one (6) and support block two (71) are used for supporting in the inside of pipe (120), and the gap width between support block one (6) and support block two (71) is equal to the width of saw blade (24) of cutting assembly (2); The upper side and the lower side of the inside of support assembly (7) are both provided with air cavity (711), the inside of air cavity (711) is provided with top block (72), the outside of top block (72) is provided with spring (73), spring (73) is used for resetting top block (72) to the middle part direction of support block two (71), the bottom of air cavity (711) has through hole two (712), the inside of arc inner rod (5) is provided with air channel (51), the front end of arc inner rod (5) has through hole one (52) that communicates with air channel (51), through hole one (52) is used for communicating with through hole two (712);The device further includes air pump, and the output end of the air pump is communicated with the air channel (51); One side of the bottom of air cavity (711) is provided with through hole (713), the bottom of top block (72) is fixedly connected with movable column (721), movable column (721) is vertically slidingly installed in through hole (713), the surface of arc inner rod (5) is provided with support hole (53), movable column (721) is used for being inserted in support hole (53); The middle part of support block two (71) is slidingly installed with blocking block (8), blocking block (8) is used for blocking through hole two (712); Both sides of the front end of arc inner rod (5) are provided with side slot (54), the inside of two side slots (54) is provided with rigid rod (9), the front end of rigid rod (9) is fixedly connected with wedge-shaped block (92), both sides of the front end of blocking block (8) have clamping block (81), wedge-shaped block (92) is used for clamping with clamping block (81); The rear end of rigid rod (9) is fixedly connected with spring sheet (91), spring sheet (91) is fixedly connected with the side wall of side slot (54), both sides of the inside of support block one (6) are fixedly connected with protruding block (61), two protruding blocks (61) are respectively used for pushing two spring sheets (91) and rigid rods (9), so that wedge-shaped block (92) is separated from clamping block (81).

2. The cutting apparatus for machining a high-silicon aluminum alloy workpiece according to claim 1, characterized by: The rack (1) is provided with a driving assembly (100), the driving assembly (100) comprises an arc-shaped slide rail two (101), a slide block two (102) and a cylinder three (103), the slide rail two (101) is fixedly installed on the rack (1), the slide block two (102) is slidably connected on the slide rail two (101), and the slide block two (102) is fixedly connected with the arc-shaped outer rod (4), the cylinder three (103) is hingedly connected with the rack (1) and the slide block two (102) respectively, and the slide block two (102) is provided with a cylinder four (110), and the cylinder four (110) is hingedly connected with the slide block two (102) and the arc-shaped inner rod (5) respectively.

3. The cutting apparatus for machining a high-silicon aluminum alloy workpiece according to claim 1, characterized by: The cutting assembly (2) comprises a stand (21) fixedly installed on the rack (1), the stand (21) is rotatably connected with a swing arm (22), the front end of the swing arm (22) is provided with a motor (23), the output end of the motor (23) is provided with a saw blade (24), and the cutting assembly (2) further comprises a cylinder one (25), and the cylinder one (25) is hingedly connected with the stand (21) and the front end of the swing arm (22) respectively.

4. The cutting apparatus for machining high-silicon aluminum alloy workpieces according to claim 1, characterized by: The clamp (3) comprises a slide rail one (31) fixedly installed on the rack (1), the slide rail one (31) is slidably installed with a slide block one (32), the front side of the slide block one (32) is provided with a clamping plate one (34), the front side of the clamping plate one (34) is provided with a clamping plate two (35) fixedly installed on the rack (1), the rack (1) is provided with a cylinder two (33), and the output end of the cylinder two (33) is fixedly connected with the slide block one (32).

5. A method of using a cutting device for machining a high-silicon aluminum alloy workpiece as claimed in any one of claims 1 to 4, characterized in that, The method comprises the following steps: Step one: two clamps (3) are used to clamp the pipe (120); Step two: the arc-shaped outer rod (4) and the arc-shaped inner rod (5) are inserted into the pipe (120), and the support block one (6) and the support block two (71) are supported on the two sides of the pipe (120) to be cut respectively; Step three: the arc-shaped inner rod (5) is slid relative to the arc-shaped outer rod (4), so that the arc-shaped inner rod (5) is separated from the support block two (71), so that the arc-shaped inner rod (5) cannot extend to the gap position between the support block one (6) and the support block two (71).

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