阅读说明：本技术 简易手动式管件对接相贯线截断等离子切割机 (Simple manual type pipe fitting butt joint intersecting line cutting plasma cutting machine ) 是由 王化峰 于 2019-09-25 设计创作，主要内容包括：本发明公开一种简易手动式管件对接相贯线截断等离子切割机,主动轮同步传动管件固定轮,管件固定轮安装待切割管件,主动轮连接斜度拉杆,从动轮连接转动拨杆,主动轮的轮轴与斜度拉杆的距离、从动轮的轮轴与转动拨杆的距离为待切割管件的半径；横移架、纵移架和摆动座安装在基架上,转动拨杆插在横移拨槽中,纵移架上安装割枪,摆动座连接的连动拨杆插在横移拨槽和纵移拨槽中,枢接点到连动拨杆的距离为待切割管件的对接管件半径；倾斜座上端枢接在摆动座上,下端调节固定在摆动座的弧形导轨上,倾斜座与水平方向的夹角为待切割管件对接的夹角,斜度拉杆的端部滑动设置在倾斜座上滑座的滑道中。本发明方便切割操作,降低切割成本,保证切割质量。(The invention discloses a simple manual type pipe fitting butt-joint intersecting line cutting plasma cutting machine, wherein a driving wheel synchronously drives a pipe fitting fixing wheel, the pipe fitting fixing wheel is provided with a pipe fitting to be cut, the driving wheel is connected with an inclination pull rod, a driven wheel is connected with a rotating deflector rod, the distance between a wheel shaft of the driving wheel and the inclination pull rod and the distance between the wheel shaft of the driven wheel and the rotating deflector rod are the radius of the pipe fitting to be cut; the transverse moving frame, the longitudinal moving frame and the swinging seat are arranged on the base frame, the rotating deflector rod is inserted into the transverse moving groove, the cutting gun is arranged on the longitudinal moving frame, the linkage deflector rod connected with the swinging seat is inserted into the transverse moving groove and the longitudinal moving groove, and the distance from the pivot point to the linkage deflector rod is the radius of a butt joint pipe fitting of a pipe fitting to be cut; the upper end of the inclined seat is pivoted on the swinging seat, the lower end of the inclined seat is adjusted and fixed on an arc-shaped guide rail of the swinging seat, the included angle between the inclined seat and the horizontal direction is the included angle for butting the pipe fittings to be cut, and the end part of the inclination pull rod is arranged in a slide way of the upper slide seat of the inclined seat in a sliding manner. The invention has the advantages of convenient cutting operation, reduced cutting cost and ensured cutting quality.)

1. Simple and easy manual formula pipe fitting butt joint intersecting line cuts plasma cutting machine, its characterized in that: comprises a base frame, a driving wheel, a pipe fitting fixing wheel, a transverse moving frame, a longitudinal moving frame, a swinging seat and an inclined seat; the pipe cutting machine comprises a base frame, a driving wheel, a pipe fitting fixing wheel, a hand-operated handle, a slope pull rod, a reversing gear, a driven wheel, a rotating deflector rod, a driving wheel, a pipe fitting fixing wheel, a hand-operated handle, a slope pull rod, a slope guide rod and a rotating deflector rod, wherein the driving wheel and the pipe fitting fixing wheel are erected on the base frame in an up-down position relation; the transverse moving frame is arranged on the base frame in a left-right sliding mode, and the rotating deflector rod is inserted into the transverse moving groove of the transverse moving frame; the longitudinal moving frame is arranged on the base frame in a front-back sliding mode, the longitudinal moving frame is positioned below the transverse moving frame, a longitudinal moving shifting groove is formed in the longitudinal moving frame, a cutting gun seat is arranged on the longitudinal moving frame, and a cutting gun for plasma cutting of a pipe fitting to be cut is arranged at the lower end of the cutting gun seat; the swing seat is arranged on the base frame in a front-back sliding mode, the swing seat is positioned below the longitudinal moving frame, a vertical pivot shaft is arranged on the swing seat, the side edge of the vertical pivot shaft is connected with a vertically arranged linkage deflector rod, the linkage deflector rod is inserted into a transverse moving shifting groove of the transverse moving frame and a longitudinal moving shifting groove of the longitudinal moving frame, the distance from a pivot point to the linkage deflector rod is the radius of a butt joint pipe fitting of a pipe fitting to be cut, and an arc-shaped guide rail is arranged below the swing seat; the upper end pin joint of slope seat is in the top of swing seat, and the lower extreme of slope seat is fixed on the arc guide rail with adjustable inclination's mounting means, and the contained angle of slope seat and horizontal direction is for waiting to cut the contained angle of pipe fitting butt joint, but with horizontal slip mode installation slide on the slope seat, the tip of inclination pull rod slides and sets up in the slide of slide.

2. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the diameters of the driving wheel and the pipe fitting fixing wheel are equal, and the driving wheel and the pipe fitting fixing wheel are connected through a transmission belt or a gear for transmission.

3. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the transverse moving frame can be arranged on the base frame in a left-right sliding mode: the top of the base frame is made into a frame shape by four rod pieces, the frame shape of the base frame forms a front sliding groove and a rear sliding groove, and the front end and the rear end of the transverse moving frame are inserted into the front sliding groove and the rear sliding groove, so that the transverse moving frame can slide left and right on the base frame.

4. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the longitudinal moving frame can be arranged on the base frame in a front-back sliding mode: the top of the base frame is made into a frame shape by four rod pieces in a connecting way, the frame shape of the base frame forms a left first sliding groove and a right first sliding groove, and the left end and the right end of the longitudinal moving frame are inserted into the left first sliding groove and the right first sliding groove, so that the longitudinal moving frame can slide back and forth on the base frame.

5. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the swinging seat is arranged on the base frame in a manner of sliding back and forth: the top of the base frame is made into a frame shape by four rod pieces, the frame shape of the base frame forms a left second sliding groove and a right second sliding groove, and the left end and the right end of the upper part of the swing frame are inserted into the left second sliding groove and the right second sliding groove, so that the swing frame can slide on the base frame back and forth.

6. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: but the slide is installed to the left and right slip mode on the slope seat: the tilting seat is formed by connecting four rod pieces into a frame shape, the frame shape of the tilting seat forms an upper third sliding groove and a lower third sliding groove, and the upper end and the lower end of the sliding seat are inserted into the upper third sliding groove and the lower third sliding groove, so that the sliding seat can slide left and right on the tilting seat.

7. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the lower part of the inner side of the wheel shaft of the driving wheel is connected with an inclination pull rod which is horizontally arranged: the inner side of a wheel shaft of the driving wheel is vertically downwards provided with a first adjusting screw, the first adjusting screw is a double-end stud, the thread turning directions of the upper section and the lower section of the double-end stud are opposite to each other, the upper section of the double-end stud is screwed on the inner side of the wheel shaft of the driving wheel, the lower section of the double-end stud is provided with a first adjusting nut, and the first adjusting nut is vertically backwards provided with an inclination pull rod.

8. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the rear part of the wheel shaft of the driven wheel is connected with a vertically arranged rotating deflector rod: a second adjusting screw is vertically and backwards installed on a wheel shaft of the driven wheel, the second adjusting screw is a double-end stud, the screwing directions of two sections of threads of the double-end stud are opposite to each other, one section of the double-end stud is in threaded connection with the wheel shaft of the driven wheel, a second adjusting nut is installed on the other section of the double-end stud, and a rotating deflector rod is vertically and upwards installed on the second adjusting nut.

9. The simple manual pipe fitting butt-joint intersecting line cutting plasma cutting machine according to claim 1, characterized in that: the side of vertical pin joint axle is connected a vertical interlock driving lever and is: the side edge of the vertical pin-jointed shaft on the swing seat is connected with a horizontally arranged third adjusting screw, the third adjusting screw is a double-end stud, the screwing directions of two sections of threads of the double-end stud are opposite to each other, one section of the double-end stud is screwed on the vertical pin-jointed shaft, the other section of the double-end stud is provided with a third adjusting nut, and the third adjusting nut is vertically upwards provided with a linkage deflector rod.

Technical Field

The invention relates to a plasma cutting technology, in particular to a simple manual type pipe fitting butt joint intersecting line cutting plasma cutting machine.

Background

Plasma cutting refers to a process of forming a cut by locally melting (and evaporating) metal at a cut of a workpiece using heat of a high-temperature plasma arc and removing the molten metal by momentum of high-speed plasma.

Disclosure of Invention

The invention aims to provide a simple manual type pipe fitting butt joint intersecting line cutting plasma cutting machine which is convenient for cutting operation, reduces cutting cost and ensures cutting quality.

In order to achieve the above purpose, the solution of the invention is:

a simple manual plasma cutting machine for cutting off a butt intersection line of pipe fittings comprises a base frame, a driving wheel, a pipe fitting fixing wheel, a transverse moving frame, a longitudinal moving frame, a swinging seat and an inclined seat; the pipe cutting machine comprises a base frame, a driving wheel, a pipe fitting fixing wheel, a hand-operated handle, a slope pull rod, a reversing gear, a driven wheel, a rotating deflector rod, a driving wheel, a pipe fitting fixing wheel, a hand-operated handle, a slope pull rod, a slope guide rod and a rotating deflector rod, wherein the driving wheel and the pipe fitting fixing wheel are erected on the base frame in an up-down position relation; the transverse moving frame is arranged on the base frame in a left-right sliding mode, and the rotating deflector rod is inserted into the transverse moving groove of the transverse moving frame; the longitudinal moving frame is arranged on the base frame in a front-back sliding mode, the longitudinal moving frame is positioned below the transverse moving frame, a longitudinal moving shifting groove is formed in the longitudinal moving frame, a cutting gun seat is arranged on the longitudinal moving frame, and a cutting gun for plasma cutting of a pipe fitting to be cut is arranged at the lower end of the cutting gun seat; the swing seat is arranged on the base frame in a front-back sliding mode, the swing seat is positioned below the longitudinal moving frame, a vertical pivot shaft is arranged on the swing seat, the side edge of the vertical pivot shaft is connected with a vertically arranged linkage deflector rod, the linkage deflector rod is inserted into a transverse moving shifting groove of the transverse moving frame and a longitudinal moving shifting groove of the longitudinal moving frame, the distance from a pivot point to the linkage deflector rod is the radius of a butt joint pipe fitting of a pipe fitting to be cut, and an arc-shaped guide rail is arranged below the swing seat; the upper end pin joint of slope seat is in the top of swing seat, and the lower extreme of slope seat is fixed on the arc guide rail with adjustable inclination's mounting means, and the contained angle of slope seat and horizontal direction is for waiting to cut the contained angle of pipe fitting butt joint, but with horizontal slip mode installation slide on the slope seat, the tip of inclination pull rod slides and sets up in the slide of slide.

The diameters of the driving wheel and the pipe fitting fixing wheel are equal, and the driving wheel and the pipe fitting fixing wheel are connected through a transmission belt or a gear for transmission. Furthermore, a belt or a chain is wound on the driving wheel and the pipe fitting fixing wheel.

The transverse moving frame can be arranged on the base frame in a left-right sliding mode: the top of the base frame is made into a frame shape by four rod pieces, the frame shape of the base frame forms a front sliding groove and a rear sliding groove, and the front end and the rear end of the transverse moving frame are inserted into the front sliding groove and the rear sliding groove, so that the transverse moving frame can slide left and right on the base frame.

The longitudinal moving frame can be arranged on the base frame in a front-back sliding mode: the top of the base frame is made into a frame shape by four rod pieces in a connecting way, the frame shape of the base frame forms a left first sliding groove and a right first sliding groove, and the left end and the right end of the longitudinal moving frame are inserted into the left first sliding groove and the right first sliding groove, so that the longitudinal moving frame can slide back and forth on the base frame.

The swinging seat is arranged on the base frame in a manner of sliding back and forth: the top of the base frame is made into a frame shape by four rod pieces, the frame shape of the base frame forms a left second sliding groove and a right second sliding groove, and the left end and the right end of the upper part of the swing frame are inserted into the left second sliding groove and the right second sliding groove, so that the swing frame can slide on the base frame back and forth.

But the slide is installed to the left and right slip mode on the slope seat: the tilting seat is formed by connecting four rod pieces into a frame shape, the frame shape of the tilting seat forms an upper third sliding groove and a lower third sliding groove, and the upper end and the lower end of the sliding seat are inserted into the upper third sliding groove and the lower third sliding groove, so that the sliding seat can slide left and right on the tilting seat.

The lower part of the inner side of the wheel shaft of the driving wheel is connected with an inclination pull rod which is horizontally arranged: the inner side of a wheel shaft of the driving wheel is vertically downwards provided with a first adjusting screw, the first adjusting screw is a double-end stud, the thread turning directions of the upper section and the lower section of the double-end stud are opposite to each other, the upper section of the double-end stud is screwed on the inner side of the wheel shaft of the driving wheel, the lower section of the double-end stud is provided with a first adjusting nut, and the first adjusting nut is vertically backwards provided with an inclination pull rod.

The rear part of the wheel shaft of the driven wheel is connected with a vertically arranged rotating deflector rod: a second adjusting screw is vertically and backwards installed on a wheel shaft of the driven wheel, the second adjusting screw is a double-end stud, the screwing directions of two sections of threads of the double-end stud are opposite to each other, one section of the double-end stud is in threaded connection with the wheel shaft of the driven wheel, a second adjusting nut is installed on the other section of the double-end stud, and a rotating deflector rod is vertically and upwards installed on the second adjusting nut.

The side of vertical pin joint axle is connected a vertical interlock driving lever and is: the side edge of the vertical pin-jointed shaft on the swing seat is connected with a horizontally arranged third adjusting screw, the third adjusting screw is a double-end stud, the screwing directions of two sections of threads of the double-end stud are opposite to each other, one section of the double-end stud is screwed on the vertical pin-jointed shaft, the other section of the double-end stud is provided with a third adjusting nut, and the third adjusting nut is vertically upwards provided with a linkage deflector rod.

After the scheme is adopted, when the pipe cutting machine is used, the position of the lower end of the inclined seat on the arc-shaped guide rail is adjusted and fixed according to the butt joint included angle of the pipe to be cut, and then the pipe to be cut is fixedly arranged on the pipe fixing wheel, so that the cutting gun is opposite to the pipe to be cut. The hand is shaken the action wheel, on the one hand through inclination pull rod, slide and sloping seat drive the swing seat and slide around on the bed frame, and on the other hand drives the sideslip frame through following the driving wheel and rotating the driving lever and slides from side to side on the bed frame, and finally, drives the interlock driving lever through sideslip frame and swing seat, and the interlock driving lever drives to indulge the frame and slide from beginning to end on the bed frame to drive the burning torch and cut, accomplish the pipe fitting butt joint intersecting line from this and cut.

The invention does not need to be combined with a numerical control machine tool, has simple structure, only manually controls cutting, has low requirement on the quality of operators, can finish cutting operation by common pipe welding personnel, has very convenient cutting operation, is suitable for cutting welded pipes with lower precision requirement, reduces the cutting cost and can ensure the cutting quality.

The invention is described in further detail below with reference to the figures and specific embodiments.

Drawings

FIG. 1 is a schematic top perspective view of the present invention;

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a side view of the present invention;

FIG. 5 is a top view of the present invention;

FIG. 6 is a schematic top perspective view of the present invention with the base frame omitted;

fig. 7 is a cross-sectional view of the invention of fig. 5.

Description of the reference symbols

The structure comprises a base frame 1, a rod piece 11, a front sliding chute 12, a rear sliding chute 12, a left first sliding chute 13, a right first sliding chute 14 and a left second sliding chute 14;

the driving wheel 2, the hand-cranking grip 21, the first adjusting screw 22, the first adjusting nut 221, the slope pull rod 222, the driven wheel 23, the second adjusting screw 24, the second adjusting nut 241 and the rotating shift lever 242;

a pipe fitting fixing pulley 3, a belt 31;

a transverse moving frame 4, a transverse moving groove 41;

a longitudinal moving frame 5, a longitudinal moving groove 51;

the swing seat 6, the third adjusting screw 61, the third adjusting nut 611, the linkage deflector rod 612, the arc-shaped guide rail 62 and the vertical pivot shaft 63;

the inclined seat 7, the sliding seat 71, the slideway 72, the fastener 73, the upper and lower third sliding chutes 74 and the pivot 75;

a cutting gun seat 8;

a cutting gun 9;

a pipe 10 to be cut.

Detailed Description

It should be noted that, the front, back, left, right, upper and lower parts described herein are only relative positions, and are only for convenience of describing the structure, but not for limitation of the technical solution, and the front, back, left and right parts can be interchanged without affecting the overall structure.

As shown in fig. 1 to 7, the simple manual pipe butt intersection line cutting plasma cutting machine disclosed by the present invention comprises a base frame 1, a driving wheel 2, a pipe fixing wheel 3, a traverse frame 4, a longitudinal frame 5, a swing seat 6 and an inclined seat 7.

The position relation that action wheel 2 and pipe fitting tight pulley 3 put up with one on the other erects on bed frame 1, and the shaft of action wheel 2 and pipe fitting tight pulley 3 is the level setting, and action wheel 2 synchronous transmission is in pipe fitting tight pulley 3. In this embodiment, the diameters of the driving wheel 2 and the pipe fixing wheel 3 are equal, and the driving wheel 2 and the pipe fixing wheel 3 are connected through a belt 31 for transmission. The belt 31 may be a chain or other transmission belt or a gear set instead of realizing a connection transmission.

The inner side of the wheel shaft of the pipe fixing wheel 3 is the installation position of the pipe 10 to be cut.

The outer side of the driving wheel 2 is provided with a hand-operated grip 21 for convenient manual operation. A horizontally arranged slope pull rod 222 is connected to the lower part of the inner side of the wheel shaft of the driving wheel 2, and the distance between the wheel shaft of the driving wheel 2 and the slope pull rod 222 is the radius of the pipe fitting 10 to be cut. For convenience of adjustment, the first adjusting screw 22 is vertically installed downwards on the inner side of the axle of the driving wheel 2 in the embodiment, the first adjusting screw 22 is a stud, the thread turning directions of the upper section and the lower section of the stud are opposite to each other, the upper section of the stud is screwed on the inner side of the axle of the driving wheel 2, the lower section of the stud is installed with a first adjusting nut 221, and the first adjusting nut 221 is vertically installed backwards with an inclination pull rod 222.

The driving wheel 2 is further driven by a pair of bevel gears through a reversing gear (in this embodiment, a pair of bevel gears) to the driven wheel 23, the driven wheel 23 is located above the rear side of the driving wheel 2, a wheel shaft of the driven wheel 23 is vertically arranged, a vertically arranged rotating shift lever 242 is connected to the rear side of the wheel shaft of the driven wheel 23, and the distance between the wheel shaft of the driven wheel 23 and the rotating shift lever 242 is the radius of the pipe 10 to be cut. For convenience of adjustment, in order to be suitable for cutting pipe fittings of different sizes, in this embodiment, the second adjusting screw 24 is vertically installed backwards on the wheel shaft of the driven wheel 23, the second adjusting screw 24 is a stud, the screwing directions of two sections of threads of the stud are opposite to each other, one section of the stud is screwed on the wheel shaft of the driven wheel 23, the other section of the stud is installed with a second adjusting nut 241, and the second adjusting nut 241 is vertically installed upwards with a rotating shift lever 242.

The traverse frame 4 is mounted on the base frame 1 in a manner of sliding left and right, and the rotary shift lever 242 is inserted in the front section of the traverse shift groove 41 of the traverse frame 4. The installation manner of the cross sliding frame 4 on the base frame 1 can be as shown in the figure but is not limited to the structure shown in the figure, specifically, the top of the base frame 1 is made into a frame shape by connecting four rod pieces 11, the frame shape of the base frame 1 forms a front and rear sliding slot 12, and the front and rear ends of the cross sliding frame 4 are inserted into the front and rear sliding slot 12, so that the cross sliding frame 4 can slide left and right on the base frame 1.

The longitudinal moving frame 5 is arranged on the base frame 1 in a front-back sliding mode, the longitudinal moving frame 5 is positioned below the transverse moving frame 4, a longitudinal moving shifting groove 51 is formed in the longitudinal moving frame 5, a cutting gun seat 8 is arranged on the longitudinal moving frame 5, and a cutting gun 9 is arranged at the lower end of the cutting gun seat 8 and used for plasma cutting of a pipe fitting 10 to be cut. The longitudinal moving frame 5 can be installed on the base frame 1 in the manner shown in the figures but not limited to the structure shown in the figures, specifically, the top of the base frame 1 is connected by four rods 11 to form a frame shape, the frame shape of the base frame 1 forms left and right first sliding grooves 13, and the left and right ends of the longitudinal moving frame 5 are inserted into the left and right first sliding grooves 13, so that the longitudinal moving frame 5 can slide back and forth on the base frame 1.

The swing seat 6 is installed on the base frame 1 in a front-back sliding mode, the swing seat 6 is located below the longitudinal moving frame 5, the swing seat 6 is provided with a vertical pivot shaft 63, the side edge of the vertical pivot shaft 63 is connected with a vertically arranged linkage shifting lever 612, the linkage shifting lever 612 is inserted in the rear section of the transverse moving shifting groove 41 of the transverse moving frame 4 and the longitudinal moving shifting groove 51 of the longitudinal moving frame 5, the distance from the pivot point to the linkage shifting lever 612 is the butt joint pipe fitting radius of the pipe fitting 10 to be cut, and an arc-shaped guide rail 62 is arranged below the swing seat 6. For convenience of adjustment, in order to be suitable for cutting pipe fittings of different sizes, the swing seat 6 of the present embodiment is connected to a horizontally disposed third adjusting screw 61 at a side edge of the vertical pivot shaft 63, the third adjusting screw 61 is a stud, the thread directions of two sections of the stud are opposite to each other, one section of the stud is screwed on the vertical pivot shaft 63, the other section of the stud is provided with a third adjusting nut 611, and the third adjusting nut 611 is provided with a linkage deflector rod 612 vertically and upwardly. The swing seat 6 can be mounted on the base frame 1 in the manner shown in the figures but not limited to the structure shown in the figures, specifically, the top of the base frame 1 is connected by four rods 11 to form a frame shape, the frame shape of the base frame 1 forms left and right second sliding grooves 14, and the left and right ends of the upper portion of the swing frame 6 are inserted into the left and right second sliding grooves 14, so that the swing frame 6 can slide back and forth on the base frame 1.

The upper end of the inclined seat 7 is pivoted above the swinging seat 6 through a pivot 75, the lower end of the inclined seat 7 is fixed on the arc-shaped guide rail 62 in an installation mode capable of adjusting the inclination angle, and the included angle between the inclined seat 7 and the horizontal direction is the included angle between the pipe fitting 10 to be cut and the butt-jointed pipe fitting. Through adjusting inclination, can be fit for different pipe fitting butt joint morphologies, when the inclination of sloping seat 7 adjusted in place, can fix the lower extreme of sloping seat 7 on arc guide rail 62 with the help of fasteners 73 such as screw. The slide carriage 71 is mounted on the tilting base 7 in a left-right slidable manner, and the end of the tilt rod 222 is slidably disposed in the slide rail 72 of the slide carriage 71. The slide seat 71 can be mounted on the tilting seat 7 in the manner shown in the figure but not limited to the structure shown in the figure, specifically, the tilting seat 7 is made of four rod members connected into a frame shape, the frame shape of the tilting seat forms the upper and lower third sliding grooves 74, and the upper and lower ends of the slide seat 71 are inserted into the upper and lower third sliding grooves 74, so that the slide seat 71 can slide left and right on the tilting seat 7.

When the pipe fitting cutting machine is used, the position of the lower end of the inclined seat 7 on the arc-shaped guide rail 62 is adjusted according to the butt joint included angle of the pipe fitting to be cut, the inclined seat 7 is fixed, and then the pipe fitting 10 to be cut is fixedly arranged on the pipe fitting fixing wheel 3, so that the cutting gun 9 is opposite to the pipe fitting 10 to be cut. After preparation, the hand-operated handle 21 is shaken by hand to drive the driving wheel 2 to rotate, on one hand, the inclined pull rod 222, the sliding seat 71 and the inclined seat 7 drive the swinging seat 6 to slide back and forth on the base frame 1, on the other hand, the driven wheel 23 and the rotating shift rod 242 drive the transverse moving frame 4 to slide left and right on the base frame 1, and finally, the transverse moving frame 4 and the swinging seat 6 drive the linkage shift rod 612 to enable the longitudinal moving frame 5 to slide back and forth on the base frame 1 to drive the cutting gun 9 to cut, thereby completing the cutting of the butt joint intersecting line of the pipe fittings. The whole cutting operation can be completed manually, which is very convenient and reduces the cutting cost.

Aiming at pipes 10 to be cut and butted pipes with different radius sizes, the invention can adjust a first adjusting nut 221 of a first adjusting screw 22 and a second adjusting nut 241 of a second adjusting screw 24 according to the radius of the pipe 10 to be cut, so that the inclination pull rod 222 and the rotating shift lever 242 are adjusted in place, and adjust a third adjusting nut 611 of a third adjusting screw 61 according to the radius of the butted pipe of the pipe 10 to be cut, so that the linkage shift lever 613 is adjusted in place, during operation, the third adjusting screw 61 and the linkage shift lever 612 are driven by the transverse moving frame 4 and the swinging seat 6, and the cutting gun 9 is driven by the longitudinal moving frame 5 to cut. In this way, the cutting operation of pipes 10 to be cut of various radius sizes is facilitated.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be understood that various alternatives, modifications, equivalents and alternatives which may be employed by those skilled in the art without departing from the spirit of the invention are also within the scope of the invention.