CN206139892U - Cutting device of tubular product - Google Patents

Abstract

The utility model discloses a cutting device of tubular product, including clamping mechanism, first cutting piece, first driving piece, second cutting piece and second driving piece. The clamping mechanism is used for clamping the pipe. The first cutting member is disposed obliquely with respect to the tube. The first driving piece is connected with the first cutting piece in a transmission way. The second cutting piece is obliquely arranged relative to the pipe, and the oblique arrangement direction of the second cutting piece is the same as that of the first cutting piece. The second driving piece is in transmission connection with the second cutting piece and is used for driving the second cutting piece to move back and forth in the second direction and enabling the head of the second cutting piece to be inserted into the pipe through the cut. The utility model discloses produced cuttings is less in the tubular product cutting process, and the burr that has on the scarf of tubular product is less.

Description

pipe cutting device

technical field

The utility model relates to the technical field of pipe material processing, in particular to a pipe material cutting device.

Background technique

The traditional way of cutting the pipe includes the cutting method of sawing the pipe with the saw blade and the cutting method of cutting the pipe with the chipless cutting mechanism. Wherein, during the process of sawing the pipe with the saw blade, the pipe is prone to dust, and the cut surface of the pipe is prone to burrs, and the pipe needs to be cleaned after cutting. In the process of cutting the pipe, the chipless cutting mechanism produces less dust and less burrs on the cutting surface of the pipe, but the chipless cutting mechanism is only suitable for cutting operations perpendicular to the axial direction of the pipe, and cannot Performs bevel cut operations on pipes.

Contents of the invention

Based on this, the utility model aims to overcome the defects of the prior art and provide a cutting device for pipes, which can facilitate the oblique cutting operation of the pipes, and the powder chips generated during the pipe cutting process are less, and the beveled surface of the pipes Produces fewer glitches.

Its technical solution is as follows: a cutting device for pipes, including: a clamping mechanism for clamping pipes; a first cutting part and a first driving part, and the first driving part and the first The cutting parts are connected by transmission, and the first driving part is used to drive the first cutting part to move back and forth in the first direction to form a cut on the side wall of the pipe; the second cutting part and the second driving part, the The second driving member is in transmission connection with the second cutting member, the second driving member is used to drive the second cutting member to move back and forth in the second direction, and make the head of the second cutting member pass through the A cutout is inserted into the tubing.

In one embodiment, the first direction is perpendicular to the second direction, the second cutting part is flat, the width of the middle part of the second cutting part is larger than the diameter of the pipe, and the second cutting part is flat. The width of the head of the two cutting parts becomes smaller gradually.

In one embodiment, the first cutting part is flat, and the first cutting part and the second cutting part are on the same plane.

In one of the embodiments, the clamping mechanism includes a base, a first clamp and a second clamp, and the first clamp and the second clamp are arranged on the base in parallel and at intervals, and the first clamp The end surface facing the second jig and the end surface of the second jig facing the first jig are both inclined relative to the pipe, and the end surface of the first jig facing the second jig and the second jig are inclined. The inclined setting direction of the end face of the clamp facing the first clamp is the same as the inclined setting direction of the first cutting part, and the movement tracks of the first cutting part and the second cutting part are located where the first clamp faces the first cutting part. Between the end surface of the second clamp and the end surface of the second clamp facing the first clamp.

In one of the embodiments, the first cutting member is arranged obliquely relative to the pipe material, the second cutting member is arranged obliquely relative to the pipe material, and the direction of the oblique arrangement of the second cutting member is the same as that of the first cutting member. The cutting parts are inclined in the same direction; the first clamp includes a first clamping block and a second clamping block, and the first clamping block is provided with a first recess adapted to the outer wall of the pipe, and the first clamping block The second clamping block is provided with a second recess adapted to the outer wall of the pipe, the first clamping block is installed on the base, the second clamping block is connected to the first clamping block The connection can be opened; the second clamp includes a third clamping block and a fourth clamping block, the third clamping block is provided with a third concave part adapted to the outer wall of the pipe, and the fourth clamping block The block is provided with a fourth recess adapted to the outer wall of the pipe, the third recess is opposite to the fourth recess, the third clamping block is installed on the base, and the fourth The clamping block is openably connected with the third clamping block.

In one of the embodiments, the base is provided with a limit slot, the first clamping block and the third clamping block are provided with a limit block adapted to the limit slot, and the limit The blocks are installed in the limiting slots.

In one of the embodiments, the first clamp includes a first guide rod, the first clamping block is provided with a first guide hole, and the second clamping block is provided with a guide hole corresponding to the first guide hole. The second guide hole, the first guide hole and the second guide hole are obliquely arranged, and the oblique arrangement direction of the first guide hole and the second guide hole is the same as the oblique arrangement direction of the second cutting member , the first clamping block is loaded into the first guide hole through the first guide rod, and the second guide hole is connected with the second clamping block;

The second clamp includes a second guide rod, the third clamping block is provided with a third guide hole, and the fourth clamping block is provided with a fourth guide hole corresponding to the third guide hole, the Both the third guide hole and the fourth guide hole are obliquely arranged, and the oblique direction of the third guide hole and the fourth guide hole is the same as the oblique direction of the second cutting member, and the third clamping The block is loaded into the third guide hole through the second guide rod, and the fourth guide hole is connected with the fourth clamping block.

In one embodiment, the base is provided with a groove, and the notch of the groove is arranged opposite to the space between the end surface of the first clamp and the end surface of the second clamp.

In one of the embodiments, the end surface of the first fixture facing the second fixture, and the end surface of the second fixture facing the first fixture are all stepped structures, and the high-level surface of the first fixture is in contact with the second fixture. The high-order surface of the second jig is oppositely arranged, and the high-order surface of the first jig and the high-order surface of the second jig are in contact with the first cutting piece and the second cutting piece; The lower surface of a jig is opposite to the lower surface of the second jig, and the space between the lower surface of the first jig and the lower surface of the second jig communicates with the groove.

Below in conjunction with above-mentioned technical scheme, principle of the present utility model, effect are further described:

1. The above-mentioned cutting device for pipes drives the first cutting part to move along the first direction and the second cutting part to move along the second direction through the first driving part and the second driving part respectively, so that the side wall of the pipe Make a cut. After the cut is formed on the side wall of the pipe, the second cutting part is inserted into the pipe through the cut, and fits the side wall of the cut of the pipe to continue cutting back and forth along the second direction, so that the pipe can be cut off smoothly. In addition, when the second cutting member cuts the pipe by stamping, the pipe generates less dust and the beveled surface of the pipe has fewer burrs.

2. The first cutting part is flat, and the first cutting part and the second cutting part are on the same plane. The second cutting part is flat, the width of the middle part of the second cutting part is larger than the diameter of the pipe, and the width of the head of the second cutting part becomes smaller gradually. In this way, the pressure received by the first cutting element and the second cutting element is relatively small during the process of cutting the pipe material, which can facilitate the cutting of the pipe material and form a chamfered surface, and the head of the second cutting element can pass through the cut and gradually cut the pipe material.

3. Since the second cutting part and the first cutting part are arranged obliquely relative to the cross-section of the pipe, the cut surface formed after the pipe is cut is correspondingly an oblique cut surface.

4. The base is provided with a limit slot. The limiting groove is arranged along the axial direction of the pipe. The first clamping block and the third clamping block are provided with limiting blocks adapted to the limiting grooves, and the limiting blocks are arranged in the limiting grooves. The limiting groove and the limiting block can position the first clamp and the second clamp on the base. During the process of the first cutting part drawing and cutting the pipe to form an incision, the first direction driven by the first driving part of the first cutting part is perpendicular to the pipe, and the limit block interferes with the limit groove, so the first clamp and the second clamp can avoid The pipe is driven by the first cutting part, and the pipe is firmly arranged on the base during the cutting process of the first cutting part, so that the first cutting part can easily form a cut on the side wall of the pipe.

5. The end surface of the first fixture facing the second fixture, and the end surface of the second fixture facing the first fixture are all stepped structures. The high-order surface of the first jig is opposite to the high-order surface of the second jig, and the high-order surface of the first jig and the high-order surface of the second jig are in contact with the first cutting piece and the second cutting piece. During the cutting process of the first cutting piece and the second cutting piece, both the first cutting piece and the second cutting piece move along the high-order surface of the first clamp and the second clamp, so that the first cutting piece and the second cutting piece The operation of the parts is more stable, and the cutting effect on the pipe is better.

6. The base is provided with grooves. The notch of the groove is set opposite to the interval between the end surface of the first clamp and the end surface of the second clamp. The lower surface of the first jig is opposite to the lower surface of the second jig, and the space between the lower surface of the first jig and the lower surface of the second jig communicates with the groove. The waste produced by cutting the pipe through the first cutting part and the second cutting part is discharged into the groove of the base in time through the interval between the lower surface of the first clamp and the lower surface of the second clamp, so as to avoid The unfavorable impact on pipe cutting caused by the waste generated during the pipe cutting process staying between the first clamp and the second clamp.

Description of drawings

Fig. 1 is the structural schematic diagram 1 when the pipe material cutting device described in the embodiment of the present invention cuts the pipe material;

Fig. 2 is a structural schematic diagram 2 when the pipe cutting device according to the embodiment of the present invention cuts the pipe;

Fig. 3 is a structural schematic diagram 3 when the pipe cutting device according to the embodiment of the present invention cuts the pipe;

Fig. 4 is an exploded schematic diagram of a cutting device for pipes according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of the first cutting part forming a cut on the side wall of the pipe according to the embodiment of the present invention;

Fig. 6 is a second schematic diagram of the first cutting member forming a cut on the side wall of the pipe according to the embodiment of the present invention;

Fig. 7 is a third schematic diagram of the first cutting member forming a cut on the side wall of the pipe according to the embodiment of the present invention.

Explanation of reference signs:

10, clamping mechanism, 11, base, 111, limit slot, 112, limit block, 113, groove, 12, first clamp, 121, first clamp block, 1211, first recess, 1212, The first guide hole, 122, the second clamping block, 1221, the second recess, 1222, the second guide hole, 123, the first guide rod, 13, the second clamp, 131, the third clamping block, 1311, the first Three recesses, 1312, third guide hole, 132, fourth clamping block, 1321, fourth recess, 1322, fourth guide hole, 133, second guide rod, 141, high-order surface, 142, low-order surface, 20. The first cutting element, 30, the first driving element, 40, the second cutting element, 41, the head, 50, the second driving element, 60, the pipe material, 61, the incision.

detailed description

Embodiments of the present utility model are described in detail below:

As shown in FIG. 1 , the pipe material cutting device according to the embodiment of the present invention includes: a clamping mechanism 10 , a first cutting part 20 , a first driving part 30 , a second cutting part 40 and a second driving part 50 .

The clamping mechanism 10 is used for clamping the pipe 60 . The first cutting member 20 is arranged obliquely relative to the pipe 60 . The first driving member 30 is in transmission connection with the first cutting member 20 , and the first driving member 30 is used to drive the first cutting member 20 to move back and forth in the first direction so as to cut the side wall of the pipe 60 A cutout 61 (as shown in FIG. 5 , 6 or 7 ) is formed thereon. Since the first cutting member 20 is arranged obliquely relative to the pipe material 60 , the cutout 61 formed on the side wall of the pipe material 60 is arranged obliquely accordingly.

The second cutting part 40 is arranged obliquely relative to the pipe material 60 , and the direction in which the second cutting part 40 is arranged obliquely is the same as the direction in which the first cutting part 20 is arranged obliquely. The second driving member 50 is in transmission connection with the second cutting member 40, the second driving member 50 is used to drive the second cutting member 40 to move back and forth in the second direction, and make the second cutting member 40 The head 41 of the piece 40 is inserted into the pipe 60 through the cutout 61 . When the first cutting part 20 forms the slit 61 on the side wall of the pipe 60, the second cutting part 40 can be used to continuously punch the cutting position on the side wall of the pipe 60 that is in contact with the first cutting part 20, so that the side wall of the pipe 60 can The cut 61 can be formed quickly. After the cutout 61 is formed on the side wall of the pipe 60, the second cutting member 40 is inserted into the pipe 60 through the cutout 61, and fits the side wall of the cutout 61 of the pipe 60 and continues to cut back and forth along the second direction, so that the pipe can be smoothly cut. 60 cut off. Since the second cutting member 40 and the first cutting member 20 are arranged obliquely relative to the cross section of the pipe material 60 , the cut surface formed after cutting the pipe material 60 is an oblique cut surface. In addition, when the second cutting member 40 cuts the pipe material 60 by punching, the pipe material 60 generates less dust, and the beveled surface of the pipe material 60 has fewer burrs.

The pipe material cutting device described above drives the first cutting member 20 to move along the first direction through the first driving member 30 and the second driving member 50 respectively, and drives the second cutting member 40 to move along the second direction, so as to cut the pipe material A cutout 61 is formed on the side wall of 60 . After the cutout 61 is formed on the side wall of the pipe 60, the second cutting member 40 is inserted into the pipe 60 through the cutout 61, and fits the side wall of the cutout 61 of the pipe 60 and continues to cut back and forth along the second direction, so that the pipe can be smoothly cut. 60 cut off. In addition, when the second cutting member 40 cuts the pipe material 60 by punching, the pipe material 60 generates less dust, and the beveled surface of the pipe material 60 has fewer burrs.

Wherein, the first direction is perpendicular to the second direction.

In this embodiment, when the second cutting member 40 and the first cutting member 20 are arranged obliquely with respect to the cross section of the pipe 60 , the cut surface formed after cutting the pipe 60 is correspondingly an oblique cut surface. When the second cutting part 40 and the first cutting part 20 are vertically arranged relative to the cross section of the pipe 60 (as shown in FIG. 2 or 3 ), the cut surface formed after cutting the pipe 60 is correspondingly a vertical plane.

The second cutting part 40 is flat, the width of the middle part of the second cutting part 40 is larger than the diameter of the pipe 60, and the width of the head part 41 of the second cutting part 40 becomes smaller gradually. The first cutting part 20 is flat, and the first cutting part 20 and the second cutting part 40 are on the same plane. In this way, the pressure received by the first cutting member 20 and the second cutting member 40 in the process of cutting the pipe 60 is relatively small, which can facilitate the cutting of the pipe 60 and form a chamfered surface, and the head 41 of the second cutting member 40 is convenient to pass through the incision 61, And the pipe material 60 is gradually cut off.

Please refer to FIG. 4 , the clamping mechanism 10 includes a base 11 , a first clamp 12 and a second clamp 13 . The first clamp 12 and the second clamp 13 are arranged side by side on the base 11 at intervals, the first clamp 12 faces the end face of the second clamp 13, and the second clamp 13 faces the end of the second clamp 13. The end faces of a clamp 12 are all inclined relative to the pipe material 60, and the first clamp 12 faces the end face of the second clamp 13, and the second clamp 13 faces the end face of the first clamp 12 in an inclined setting direction It is the same as the oblique setting direction of the first cutting member 20 . The movement tracks of the first cutting member 20 and the second cutting member 40 are located between the end surface of the first clamp 12 facing the second clamp 13 and the end surface of the second clamp 13 facing the first clamp 12 between. The first clamp 12 and the second clamp 13 fasten the pipe 60 on the base 11 , and make the cut surface of the pipe 60 formed between the first clamp 12 and the second clamp 13 . In this way, the fixing effect of the pipe 60 on the base 11 is better, and the cutting effect of the first cutting member 20 and the second cutting member 40 is more stable when cutting the pipe 60 , which is convenient for cutting the pipe 60 .

The first clamp 12 includes a first clamping block 121 and a second clamping block 122 . The first clamping block 121 is provided with a first recess 1211 adapted to the outer wall of the pipe 60 , and the second clamping block 122 is provided with a second recess 1221 adapted to the outer wall of the pipe 60 . The first recess 1211 is opposite to the second recess 1221 . The first clamping block 121 is mounted on the base 11 , and the second clamping block 122 is openably connected to the first clamping block 121 .

The second clamp 13 includes a third clamping block 131 and a fourth clamping block 132 . The third clamping block 131 is provided with a third recess 1311 adapted to the outer wall of the pipe 60 , and the fourth clamping block 132 is provided with a fourth recess 1321 adapted to the outer wall of the pipe 60 . The third recess 1311 is opposite to the fourth recess 1321, the third clamping block 131 is mounted on the base 11, the fourth clamping block 132 is connected to the third clamping block 131 may open the connection.

Before the pipe material 60 is loaded into the first clamp 12 and the second clamp 13, the first clamping block 121 and the second clamping block 122 are opened, and the third clamping block 131 and the fourth clamping block 132 are opened, so that a part of the pipe material 60 Put it between the first clamping block 121 and the second clamping block 122, put another part of the pipe 60 between the third clamping block 131 and the fourth clamping block 132, and then close the first clamping block 121 and the second clamping block 122, the third clamping block 131 and the fourth clamping block 132, so that a part of the pipe 60 can be fixed in the first recess 1211 and the second recess 1221, and the other part of the pipe 60 can be fixed in the first recess 1211 and the second recess 1221. The third recess 1311 and the fourth recess 1321 . After the pipe 60 is cut, the first clamping block 121 and the second clamping block 122 are opened, and the third clamping block 131 and the fourth clamping block 132 are opened, so that the cut two sections of pipe 60 can be separated from the Take out the first jig 12 and the second jig 13.

The first clamp 12 includes a first guide rod 123 . The first clamping block 121 is provided with a first guide hole 1212 , and the second clamping block 122 is provided with a second guide hole 1222 corresponding to the first guide hole 1212 . Both the first guide hole 1212 and the second guide hole 1222 are arranged obliquely, and the direction in which the first guide hole 1212 and the second guide hole 1222 are arranged obliquely is the same as the direction in which the second cutting member 40 is arranged obliquely. same. The first clamping block 121 is inserted into the first guide hole 1212 through the first guide rod 123 , and the second guide hole 1222 is connected with the second clamping block 122 .

The second clamp 13 includes a second guide rod 133 . The third clamping block 131 is provided with a third guide hole 1312, and the fourth clamping block 132 is provided with a fourth guide hole 1322 corresponding to the third guide hole 1312. Both the third guide hole 1312 and the fourth guide hole 1322 are arranged obliquely, and the direction in which the third guide hole 1312 and the fourth guide hole 1322 are arranged obliquely is the same as the direction in which the second cutting member 40 is arranged obliquely. same. The third clamping block 131 is inserted into the third guiding hole 1312 through the second guiding rod 133 , and the fourth guiding hole 1322 is connected with the fourth clamping block 132 .

The base 11 is provided with a limiting groove 111 . The limiting groove 111 is arranged along the axial direction of the pipe 60 . The first clamping block 121 and the third clamping block 131 are provided with a limiting block 112 adapted to the limiting groove 111, and the limiting block 112 is installed in the limiting groove 111 . The limiting groove 111 and the limiting block 112 can position the first clamp 12 and the second clamp 13 on the base 11 . During the process of the first cutting member 20 pulling and cutting the pipe material 60 to form the slit 61, the first direction driven by the first driving member 30 of the first cutting member 20 is perpendicular to the pipe material 60, and the limiting block 112 is in contact with the limiting groove 111. A clamp 12 and a second clamp 13 can prevent the pipe material 60 from being driven by the first cutting member 20, and the pipe material 60 is firmly arranged on the base 11 during the cutting process of the first cutting member 20, so that the first cutting member 20 can be easily placed on the pipe material. A cutout 61 is formed on the side wall of 60 .

The end surface of the first clamp 12 facing the second clamp 13 and the end surface of the second clamp 13 facing the first clamp 12 are both stepped structures. The high-order surface 141 of the first jig 12 is opposite to the high-order surface 141 of the second jig 13 , the high-order surface 141 of the first jig 12 , the high-order surface 141 of the second jig 13 and The first cutting part 20 and the second cutting part 40 are in contact. During the process of cutting the pipe material 60 by the first cutting member 20 and the second cutting member 40, both the first cutting member 20 and the second cutting member 40 move along the high-order surface 141 of the first clamp 12 and the second clamp 13, thus, The operation of the first cutting member 20 and the second cutting member 40 is more stable, and the cutting effect on the pipe material 60 is better.

The base 11 is provided with a groove 113 . The notch of the groove 113 is set opposite to the space between the end surface of the first clamp 12 and the end surface of the second clamp 13 . The lower-level surface 142 of the first jig 12 is opposite to the lower-level surface 142 of the second jig 13 . The space between communicates with the groove 113 . The waste produced by cutting the pipe material 60 through the first cutting part 20 and the second cutting part 40 is discharged into the base 11 in time through the gap between the low-level surface 142 of the first clamp 12 and the low-level surface 142 of the second clamp 13 In the groove 113 of the pipe material 60 , it can prevent the waste material generated during the cutting process of the pipe material 60 from staying between the first jig 12 and the second jig 13 and causing adverse effects on the cutting of the pipe material 60 .

The cutting method of the pipe material 60 described in the utility model includes the following steps: fixing the pipe material 60 to be cut by the clamping mechanism 10; determining the first cutting member 20, The oblique setting direction of the second cutting member 40 relative to the pipe material 60; for example, when the inclination angle of the preset beveled surface of the pipe material 60 is 60 degrees, then the first cutting member 20 and the second cutting member 40 are determined relative to the pipe material 60. The tilt setting angle is 60 degrees.

The first cutting member 20 is driven by the first driving member 30 to move back and forth in the first direction to form a cut 61 on the side wall of the pipe 60; the second cutting member 40 is driven back and forth in the second direction by the second driving member 50 Move and make the head 41 of the second cutting member 40 gradually insert into the pipe 60 through the cutout 61 . Wherein, the first driving member 30 drives the first cutting member 20 to move back and forth in the first direction so as to form the slit 61 on the side wall of the pipe 60, and the second driving member 50 drives the second cutting member 40 in the second direction, and make the head 41 of the second cutting part 40 gradually insert into the pipe 60 through the incision 61, without changing the relationship between the first cutting part 20 and the second cutting part 40 relative to the pipe. The direction is set obliquely so as to ensure the cutting efficiency of the first cutting member 20 and the second cutting member 40 for cutting pipes.

In the above-mentioned cutting method of the pipe material 60, the inclination direction of the first cutting member 20 and the second cutting member 40 relative to the pipe material 60 is set according to the inclination angle of the preset beveled surface of the pipe material 60, and the cut surface formed after the pipe material 60 is cut is correspondingly preset. Beveled. In addition, since the second cutting member 40 cuts the pipe material 60 by punching, less dust is generated from the pipe material 60 , and there are fewer burrs on the beveled surface of the pipe material 60 .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be interpreted as a limitation on the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. a kind of cutter sweep of tubing, it is characterised in that include：

Clamp system, the clamp system is used to clamp tubing；

First cutting member and the first actuator, first actuator is connected with first cutting member transmission, and described first drives Moving part is used to drive first cutting member to move back and forth in a first direction to form otch on the wall of the tubing side；

Second cutting member and the second actuator, second actuator is connected with second cutting member transmission, and described second drives Moving part is used to drive second cutting member to move back and forth in a second direction and causes the second cutting member head to pass through institute State otch to be inserted in the tubing.

2. the cutter sweep of tubing according to claim 1, it is characterised in that the first direction and the second direction It is vertically arranged, second cutting member is flat, the width in the middle part of second cutting member is more than the diameter of the tubing, institute The width for stating the second cutting member head is tapered into.

3. the cutter sweep of tubing according to claim 2, it is characterised in that first cutting member is flat, institute State the first cutting member in the same plane with second cutting member.

4. the cutter sweep of the tubing according to any one of claims 1 to 3, it is characterised in that the clamp system includes Pedestal, the first fixture and the second fixture, first fixture is disposed on side by side on the pedestal with second fixture, institute State the first fixture towards the end face of second fixture, second fixture towards first fixture end face both with respect to institute State tubing to be obliquely installed, and first fixture is towards the end face of second fixture, second fixture towards described first It is identical that the end slope setting direction of fixture and first cutting member are obliquely installed direction, first cutting member, described The movement locus of two cutting members be located at first fixture towards second fixture end face with second fixture towards institute State between the end face of the first fixture.

5. the cutter sweep of tubing according to claim 4, it is characterised in that first cutting member is relative to the pipe Material is obliquely installed, second cutting member is obliquely installed relative to the tubing, and second cutting member is obliquely installed direction It is identical direction to be obliquely installed with first cutting member；First fixture includes the first gripping block and the second gripping block, described First gripping block be provided with the tubing lateral wall be adapted the first recess, second gripping block be provided with outside the tubing The second adaptable recess of side wall, first gripping block is installed on the pedestal, second gripping block and described first Gripping block can open connection；Second fixture includes the 3rd gripping block and the 4th gripping block, the 3rd gripping block be provided with The 3rd adaptable recess of the tubing lateral wall, the 4th gripping block is provided with the be adapted with the tubing lateral wall Four recesses, the 3rd recess is oppositely arranged with the 4th recess, and the 3rd gripping block is installed on the pedestal, described 4th gripping block can be opened with the 3rd gripping block and is connected.

6. the cutter sweep of tubing according to claim 5, it is characterised in that the pedestal is provided with stopper slot, described One gripping block, the 3rd gripping block are provided with the limited block being adapted with the stopper slot, and the limited block is installed in the limit In the groove of position.

7. the cutter sweep of tubing according to claim 5, it is characterised in that first fixture includes that first is oriented to Bar, first gripping block is provided with the first pilot hole, and second gripping block is provided with and first pilot hole corresponding second Pilot hole, first pilot hole is obliquely installed with second pilot hole, first pilot hole, second pilot hole The direction that is obliquely installed be obliquely installed that direction is identical with second cutting member, first gripping block is oriented to by described first Bar loads first pilot hole, second pilot hole and is connected with second gripping block；

Second fixture includes the second guide post, and the 3rd gripping block is provided with the 3rd pilot hole, and the 4th gripping block sets There is the 4th pilot hole corresponding with the 3rd pilot hole, the 3rd pilot hole is obliquely installed with the 4th pilot hole, 3rd pilot hole, to be obliquely installed direction identical for be obliquely installed direction and second cutting member of the 4th pilot hole, 3rd gripping block loads the 3rd pilot hole, the 4th pilot hole with the described 4th folder by second guide post Tight block is connected.

8. the cutter sweep of tubing according to claim 4, it is characterised in that the pedestal is provided with groove, the groove Notch and the interval between first fixture end face, second fixture end face be oppositely arranged.

9. the cutter sweep of tubing according to claim 8, it is characterised in that first fixture is towards the described second folder The end face of tool, second fixture are hierarchic structure, the high terrace of first fixture towards the end face of first fixture It is oppositely arranged with the high terrace of second fixture, the high terrace of first fixture, the high terrace of second fixture and institute State the first cutting member, second cutting member to contact；The low order face of the low order face of first fixture and second fixture It is oppositely arranged, the interval between the low order face of first fixture and the low order face of second fixture communicates with the groove.