CN212526452U

CN212526452U - Plasma cutting device

Info

Publication number: CN212526452U
Application number: CN202021155073.5U
Authority: CN
Inventors: 杨顺福
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-21
Filing date: 2020-06-21
Publication date: 2021-02-12
Anticipated expiration: 2030-06-21

Abstract

The utility model discloses a plasma cutting device, including leading-in pipeline, the top coaxial coupling second lock ring of leading-in pipeline, the diameter of second lock ring is greater than the diameter of leading-in pipeline, the top coaxial coupling first lock ring of second lock ring, the diameter of first lock ring is less than the diameter of second lock ring, first lock ring is located the rolling circle, be connected through the bearing between rolling circle and the first lock ring for the rolling circle can freely rotate; the inner diameters of the first support ring, the second support ring and the leading-in pipeline are equal; the outer side wall of the rotating ring is horizontally connected with a placing plate, the placing plate is vertically connected with a baffle, and the baffle and the rotating ring are arranged in the radial direction; and a second connecting plate is horizontally connected to one side of the second support ring. The utility model discloses install the plasma spray gun on manual hydraulic fork truck, whole plasma cutting equipment conveniently removes easy operation, convenient to use.

Description

Plasma cutting device

Technical Field

The utility model relates to a plasma cutting technical field, concretely relates to plasma cutting device.

Background

Plasma arc cutting is a process in which the heat of a high temperature plasma arc is used to locally melt (and vaporize) the metal at the cut of a workpiece and the molten metal is removed by the momentum of the high speed plasma to form the cut. The plasma cutting can be matched with different working gases to cut various metals which are difficult to cut by oxygen, and particularly, the cutting effect on nonferrous metals (stainless steel, aluminum, copper, titanium and nickel) is better; the plasma cutting method has the main advantages that when metal with small thickness is cut, the plasma cutting speed is high, particularly when a common carbon steel sheet is cut, the speed can reach 5-6 times that of an oxygen cutting method, a cutting surface is smooth and clean, the thermal deformation is small, and a heat affected zone is few.

However, most of the existing plasma cutting machines are inconvenient to move, and the cutting angle cannot be adjusted when a small and regular metal plate is cut, so that a plasma cutting device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a plasma cutting device.

The utility model provides a following technical scheme: a plasma cutting device comprises an introducing pipeline, wherein the top of the introducing pipeline is coaxially connected with a second support ring, the diameter of the second support ring is larger than that of the introducing pipeline, the top of the second support ring is coaxially connected with a first support ring, the diameter of the first support ring is smaller than that of the second support ring, the first support ring is positioned in a rotating ring, and the rotating ring is connected with the first support ring through a bearing, so that the rotating ring can rotate freely;

the inner diameters of the first support ring, the second support ring and the leading-in pipeline are equal; the outer side wall of the rotating ring is horizontally connected with a placing plate, the placing plate is vertically connected with a baffle, and the baffle and the rotating ring are arranged in the radial direction;

a second connecting plate is horizontally connected to one side of the second support ring, the other end of the second connecting plate is vertically connected with an L-shaped fixed seat, the top of the L-shaped fixed seat is located above the second connecting plate, a ball screw is vertically arranged at the tail end of the second connecting plate, the top of the ball screw penetrates out of the top of the L-shaped fixed seat, and the L-shaped fixed seat and the ball screw as well as the ball screw and the second connecting plate are connected through bearings;

the ball screw on the ball screw is fixed on the guide seat, the guide seat penetrates through the ball screw, third guide rods penetrate through two sides of the guide seat, and two ends of each third guide rod are fixed with the top of the L-shaped fixed seat and the top of the second connecting plate respectively;

one side of the guide seat, which is far away from the L-shaped fixed seat, is connected with two sliding rods which are arranged in parallel, the sliding rods are positioned right above the first supporting ring, and the other ends of the sliding rods are connected together through a first connecting plate;

the sliding rod is provided with an installation seat in a penetrating manner, the installation seat can freely slide along the sliding rod, the top surface of the installation seat is vertically connected with a second guide rod, the second guide rod is provided with an adjusting seat in a penetrating manner, two ends of the adjusting seat are provided with first guide rods in a penetrating manner, and the bottom of each first guide rod is fixed with the installation seat; a second guide rod between the mounting seat and the adjusting seat is sleeved with a return spring, and the return spring is respectively connected with the mounting seat and the adjusting seat;

one side, close to the L-shaped fixed seat, of the adjusting seat is connected with an L-shaped support frame, the lower end of the L-shaped support frame vertically penetrates downwards from the middle of the sliding rod to the position below the sliding rod, the lower end of the L-shaped support frame is connected with a fixed pipe, and the central axis of the fixed pipe is arranged by passing through the diameter of the leading-in pipeline; a handle is inserted in the fixed pipe, an external thread is arranged on the surface of one end of the handle, the other end of the handle is connected with a spray gun mounting seat, a plasma spray gun is mounted in the spray gun mounting seat, the plasma spray gun is vertically arranged downwards, and the center of the plasma spray gun passes through the central point of the leading-in pipeline;

an annular retainer ring is coaxially arranged at one end of the handle close to the spray gun mounting seat, the annular retainer ring is abutted against the fixed pipe, and one end of the handle far away from the annular retainer ring is fastened through a nut;

the middle part of one side of the adjusting seat far away from the L-shaped fixed seat is connected with a first handle, and the middle part of one side of the mounting seat far away from the L-shaped fixed seat is connected with a second handle.

Preferably, the top of the rotating ring is coaxially connected with a check ring, the check ring seals a gap between the rotating ring and the first support ring, and the check ring extends to the top of the first support ring without a gap therebetween; the inner diameter of the retainer ring is larger than that of the first support ring, and the edge of the first support ring close to the center is provided with angle scales;

the inner wall of the retainer ring is connected with a pointer pointing to the angle scale, the pointer and the baffle are positioned in the same plane, and the top surfaces of the retainer ring and the placing plate are flush;

the bottom of one side of the placing plate, which is far away from the leading-in pipeline, is connected with a fourth connecting seat, the fourth connecting seat is connected with a positioning bolt which is radially arranged on the leading-in pipeline, and the tail end of the positioning bolt is abutted against the side face of the second support ring.

Preferably, the top of the ball screw is connected with a crank.

Preferably, one side of the guide seat, which is far away from the sliding rod, is connected with a threaded head, an adjusting groove is vertically formed in the outer side of the L-shaped fixed seat, and the threaded head extends out of the adjusting groove and is fastened through a locking nut.

Preferably, the leading-in pipeline is positioned at one end of the working table, the leading-in pipeline is coaxially inserted into the supporting cylinder, the supporting cylinder is fixedly connected to the tail end of the working table, and the supporting cylinder is communicated with the working table; the edge of the second support ring is connected with at least two third connecting seats at equal intervals, the third connecting seats are in threaded connection with locking bolts arranged in the radial direction of the support cylinder, the support cylinder is positioned between the third connecting seats and the guide-in pipeline, and the locking bolts can be abutted against the support cylinder in a rotating mode;

a plasma cutting machine box body and a tool box are arranged on the top surface of the other end of the working table, a plasma cutting machine is arranged in the plasma cutting machine box body, and the plasma cutting machine is connected with a plasma spray gun through a guide wire and a guide pipe;

two sides of the bottom surface of the working table surface are vertically connected with supporting plates;

the working table is connected to the top of the manual hydraulic forklift;

at least one partition plate is arranged in the tool box, a gas cylinder fixing bin is divided between the partition plate and the tool box, and a gas cylinder is inserted in the gas cylinder fixing bin.

Preferably, the two ends of the plasma cutting machine box body are provided with ventilation windows, and the top of the plasma cutting machine box body is connected with the cover plate through a buckle.

Preferably, universal wheels are mounted at the positions, close to the vehicle head, of the two sides of the manual hydraulic forklift;

two first connecting seats are symmetrically connected to the bottom surfaces of the two sides of the manual hydraulic forklift, two second connecting seats are symmetrically mounted at the two ends of the working table, and the second connecting seats are located between the manual hydraulic forklift and are arranged corresponding to the first connecting seats;

the second connecting seats at the two ends of the working table surface are connected through fixing screws, and the two ends of each fixing screw are respectively arranged in the first connecting seats and fastened through nuts;

chamfers are arranged on the outer edge of the bottom of the leading-in pipeline and the inner edge of the top of the supporting cylinder.

Preferably, a plurality of openings are opened in a side surface of the introduction duct.

Preferably, the top of the fixed pipe is provided with a strip-shaped block vertical to the central axis, the top of the strip-shaped block is provided with an anti-skid rubber pad, and two ends of the strip-shaped block are positioned below the sliding rod.

The utility model has the advantages that: plasma torch installs on manual hydraulic fork truck, and whole plasma cutting equipment conveniently removes, and plasma torch can take out the exclusive use from fixed pipe moreover, can put and use on the mount pad, easy operation, convenient to use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a first schematic view of a mounting structure of a plasma torch of a plasma cutting apparatus according to the present invention.

Fig. 2 is a schematic view of a mounting structure of a plasma torch of the plasma cutting apparatus according to the present invention.

Fig. 3 is a schematic view of the connection structure of the first support ring, the second support ring and the guiding pipe of the plasma cutting apparatus provided by the present invention.

Fig. 4 is the utility model provides a plasma cutting device and manual hydraulic forklift combined structure sketch map one.

Fig. 5 is the utility model provides a plasma cutting device and manual hydraulic forklift combined structure schematic diagram two.

In the figure: the manual hydraulic forklift comprises a manual hydraulic forklift 1, a first connecting seat 2, a supporting plate 3, a second connecting seat 4, a fixing screw rod 5, a supporting cylinder 6, a chamfer 7, a locking bolt 8, a ball screw 9, an adjusting groove 10, a locking nut 11, an L-shaped fixed seat 12, a threaded head 13, a crank 14, a guide seat 15, a handle 16, a plasma spray gun 17, an L-shaped supporting frame 18, a mounting seat 19, an adjusting seat 20, a first guide rod 21, a second guide rod 22, a first handle 23, a second handle 24, a first connecting plate 25, a placing plate 26, a retainer ring 27, a sliding rod 28, a pointer 29, a fixing pipe 30, a spray gun mounting seat 31, an angle scale 32, a second connecting plate 33, a first supporting ring 34, a second supporting ring 35, a third connecting seat 36, an opening 37, a tool box 38, a cover plate 39, a ventilating window 40, a plasma cutting machine box 41, an annular retainer ring 42, a return spring 43, a universal wheel 44, a working table, The gas cylinder fixing device comprises a baffle plate 46, a leading-in pipeline 47, a rotating ring 48, a fourth connecting seat 49, a positioning bolt 50, a third guide rod 51, a strip-shaped block 52, a partition plate 53 and a gas cylinder fixing bin 54.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, a plasma cutting apparatus comprises an introducing pipe 47, wherein the top of the introducing pipe 47 is coaxially connected with a second support ring 35, the diameter of the second support ring 35 is larger than that of the introducing pipe 47, the top of the second support ring 35 is coaxially connected with a first support ring 34, the diameter of the first support ring 34 is smaller than that of the second support ring 35, the first support ring 34 is positioned in a rotating ring 48, and the rotating ring 48 is connected with the first support ring 34 through a bearing, so that the rotating ring 48 can rotate freely;

as shown in fig. 3, the inner diameters of the first support ring 34, the second support ring 35 and the introduction pipe 47 are equal; the outer side wall of the rotating ring 48 is horizontally connected with a placing plate 26, a baffle plate 46 is vertically connected to the placing plate 26, and the baffle plate 46 and the rotating ring 48 are arranged in the radial direction; specifically, one side of the metal plate to be cut can be abutted against the baffle 46, so that one side of the metal plate passes through the center of the introducing pipe 47, and the cutting angle (described in detail below) between the metal plate and the plasma torch 17 can be adjusted by rotating the rotating ring 48;

a second connecting plate 33 is horizontally connected to one side of the second support ring 35, the other end of the second connecting plate 33 is vertically connected with the L-shaped fixed seat 12, the top of the L-shaped fixed seat 12 is located above the second connecting plate 33, a ball screw 9 is vertically arranged at the tail end of the second connecting plate 33, the top of the ball screw 9 penetrates through the top of the L-shaped fixed seat 12 and is out of the L-shaped fixed seat, and the L-shaped fixed seat 12 and the ball screw 9 as well as the ball screw 9 and the second connecting plate 33 are connected through bearings;

the ball screw on the ball screw 9 is fixed on the guide seat 15, the guide seat 15 penetrates through the ball screw 9, third guide rods 51 penetrate through two sides of the guide seat 15, and two ends of each third guide rod 51 are fixed with the top of the L-shaped fixed seat 12 and the top of the second connecting plate 33 respectively; when the ball screw 9 rotates, the guide seat 15 can be driven to do vertical linear motion, and the third guide rod 51 plays a role in limiting and stabilizing;

one side of the guide seat 15, which is far away from the L-shaped fixed seat 12, is connected with two parallel sliding rods 28, the sliding rods 28 are located right above the first supporting ring 34, and the other ends of the sliding rods 28 are connected together through a first connecting plate 25; as shown in fig. 1, the slide bars 28 are horizontally arranged, and the center line between the slide bars 28 passes through the center of the introduction duct 47;

an installation seat 19 penetrates through the sliding rod 28, the installation seat 19 can freely slide along the sliding rod 28, the top surface of the installation seat 19 is vertically connected with a second guide rod 22, an adjusting seat 20 penetrates through the second guide rod 22, two ends of the adjusting seat 20 penetrate through a first guide rod 21, and the bottom of the first guide rod 21 is fixed with the installation seat 19; a return spring 43 is sleeved on the second guide rod 22 between the mounting seat 19 and the adjusting seat 20, and the return spring 43 is respectively connected with the mounting seat 19 and the adjusting seat 20; after the mounting seat 19 is pressed, the mounting seat 19 can be restored to the initial position under the action of the return spring 43;

one side of the adjusting seat 20, which is close to the L-shaped fixed seat 12, is connected with an L-shaped support frame 18, the lower end of the L-shaped support frame 18 vertically penetrates downwards from the middle of the sliding rod 28 to the lower part of the sliding rod 28, the lower end of the L-shaped support frame 18 is connected with a fixed pipe 30, and the central axis of the fixed pipe 30 passes through the diameter of the introducing pipeline 47; a grip 16 is inserted into the fixed pipe 30, an external thread is arranged on the surface of one end of the grip 16, the other end of the grip 16 is connected with a spray gun mounting seat 31, a plasma spray gun 17 is mounted in the spray gun mounting seat 31, the plasma spray gun 17 is vertically arranged downwards, and the center of the plasma spray gun 17 passes through the central point of the guide-in pipe 47; specifically, the angle of the metal plate cut by the plasma torch 17 is adjusted along with the rotation of the placing plate 26, and after the mounting seat 19 is pressed, the plasma torch 17 is driven to move downwards by the driving of the mounting seat 19;

it should be emphasized that the coarse adjustment is preferred, that is, the ball screw 9 is rotated to quickly drive the guide seat 15 to move up and down, so that the plasma spray gun 17 moves up and down, and when the plasma spray gun 17 reaches above the metal plate, the fine adjustment is also preferred, that is, the mounting seat 19 is pressed to drive the plasma spray gun 17 to perform fine adjustment up and down, so that the flame of the plasma spray gun 17 can be adjusted with the metal plate;

as shown in fig. 1, an annular retaining ring 42 is coaxially arranged at one end of the handle 16 close to the spray gun mounting seat 31, the annular retaining ring 42 is abutted against the fixed pipe 30, and one end of the handle 16 far from the annular retaining ring 42 is fastened through a nut; that is, when the handle 16 is inserted into the fixing tube 30, the fixing tube 30 is sandwiched by the annular retainer 42 and the nut (not shown, the nut is connected as indicated by arrow a in the drawing) to fix the plasma torch 17;

the middle part of one side of the adjusting seat 20, which is far away from the L-shaped fixed seat 12, is connected with a first handle 23, and the middle part of one side of the mounting seat 19, which is far away from the L-shaped fixed seat 12, is connected with a second handle 24; specifically, when the distance between the plasma spray gun 17 and the metal plate is just short, the second handle 24 can be directly pushed, so that the mounting seat 19 and the plasma spray gun 17 are driven to cut; when fine adjustment is needed, the first handle 23 and the second handle 24 can be held by hands, the first handle 23 drives the mounting seat 19 and the plasma spray gun 17 to move downwards, the plasma spray gun 17 and the metal plate are adjusted, the plasma spray gun 17 is pushed back and forth, the metal plate can be cut, and the angle can be adjusted in a random rotating mode.

In the present invention, as shown in fig. 1, the first support ring 34, the second support ring 35, the introducing pipe 47 and other structures can be used as a using unit, and can be used on the bottom surface, or can be used on the manual hydraulic forklift 1 (detailed description below).

Further, as shown in fig. 1, 2 and 3, the top of the rotating ring 48 is coaxially connected with a retainer ring 27, the retainer ring 27 seals the gap between the rotating ring 48 and the first support ring 34, and the retainer ring 27 extends to the top of the first support ring 34 without a gap therebetween; the inner diameter of the retainer ring 27 is larger than that of the first support ring 34, and the edge of the first support ring 34 close to the center is provided with an angle scale 32;

the inner wall of the retainer ring 27 is connected with a pointer 29 pointing to the angle scale 32, the pointer 29 and the baffle 46 are positioned in the same plane, and the top surfaces of the retainer ring 27 and the placing plate 26 are flush; the pointer 29 can rotate along with the rotation of the rotating ring 48, and when the pointer stops, the rotating angle of the metal plate is obtained;

the bottom of one side, far away from the leading-in pipeline 47, of the placing plate 26 is connected with a fourth connecting seat 49, a positioning bolt 50 which is radially arranged with the leading-in pipeline 47 is connected onto the fourth connecting seat 49, and the tail end of the positioning bolt 50 is abutted against the side surface of the second support ring 35; after the metal plate is fixed, the placing plate 26 can be fixed, and when the metal plate with the same angle is cut, another metal plate can be directly placed on the placing plate 26 for cutting.

Further, as shown in fig. 1, the top of the ball screw 9 is connected with a crank 14 for convenient rotation.

Further, as shown in fig. 1, a threaded head 13 is connected to one side of the guide seat 15, which is away from the sliding rod 28, an adjusting groove 10 is vertically formed in the outer side of the L-shaped fixed seat 12, and the threaded head 13 extends out of the adjusting groove 10 and is fastened by a lock nut 11; after the 17 th position of the plasma spray gun is fixed, in order to make the position more stable, the locking nut 11 can be screwed, and the guide seat 15 is kept fixed.

Further, as shown in fig. 4, the introducing pipe 47 is located at one end of the working platform 45, the introducing pipe 47 is coaxially inserted into the supporting cylinder 6, the supporting cylinder 6 is fixedly connected to the end of the working platform 45, and the supporting cylinder 6 is communicated with the working platform 45;

at least two third connecting seats 36 are connected to the edge of the second support ring 35 at equal intervals, locking bolts 8 radially arranged with the support cylinder 6 are in threaded connection on the third connecting seats 36, the support cylinder 6 is positioned between the third connecting seats 36 and the guide-in pipeline 47, and the locking bolts 8 can be abutted against the support cylinder 6 by rotating;

the other end top surface of the working table surface 45 is provided with a plasma cutting machine box body 41 and a tool box 38, a plasma cutting machine is arranged in the plasma cutting machine box body 41, and the plasma cutting machine is connected with the plasma spray gun 17 through a guide wire and a guide pipe;

the two sides of the bottom surface of the working table surface 45 are vertically connected with the supporting plates 3;

the working table 45 is connected to the top of the manual hydraulic forklift 1;

at least one partition plate 53 is arranged in the tool box 38, a gas cylinder fixing bin 54 is divided between the partition plate 53 and the tool box 38, a gas cylinder is inserted into the gas cylinder fixing bin 54, the gas cylinder (not shown in the figure) is used for storing rare gas, the gas cylinder is connected with a plasma cutting machine through a guide pipe, special gas needs to be introduced when nonferrous metals are cut, and the gas cylinder fixing bin 54 is convenient for placing the gas cylinder.

Specifically, the height of the manual hydraulic forklift 1 can be adjusted manually, the height of the manual hydraulic forklift 1 is generally 0-15CM, when the manual hydraulic forklift 1 is adjusted to the lowest position, the manual hydraulic forklift 1 retracts into the two support plates 3, and the support plates 3 are supported on the bottom surface, so that the manual hydraulic forklift 1 is prevented from moving when contacting the ground; when the manual hydraulic forklift 1 needs to be moved, the manual hydraulic forklift 1 can be adjusted to ascend, the workbench surface 45 is jacked up by the manual hydraulic forklift 1, the bottom of the supporting plate 3 is separated from the bottom surface by 8-10CM, and then the manual hydraulic forklift 1 can be dragged away.

Further, as shown in fig. 4, ventilation windows 40 are provided at both ends of the plasma cutter housing 41, and the top is connected to the cover plate 39 by a snap. A port (as indicated by an arrow B in fig. 4) is opened at a side surface of the plasma cutter housing 41, which is used to facilitate installation of pipes and lines of the plasma cutter.

Furthermore, universal wheels 44 are mounted at positions, close to the head, of two sides of the hand-operated hydraulic forklift 1, so that the stability of the hand-operated hydraulic forklift 1 is enhanced;

as shown in fig. 5, two first connecting seats 2 are symmetrically connected to bottom surfaces of two sides of the manual hydraulic forklift 1, two second connecting seats 4 are symmetrically installed at two ends of the working table 45, and the second connecting seats 4 are located between the manual hydraulic forklift 1 and are arranged corresponding to the first connecting seats 2;

the second connecting seats 4 at the two ends of the working table surface 45 are connected through fixing screws 5, and the two ends of the fixing screws 5 are respectively arranged in the first connecting seats 2 and fastened through nuts; as shown in fig. 5, the working platform 45 is detached from the manual hydraulic forklift 1, and the manual hydraulic forklift 1 can be used alone;

the outer edge of the bottom of the leading-in pipeline 47 and the inner edge of the top of the supporting cylinder 6 are both provided with chamfers 7.

Further, the introduction pipe 47 is formed with a plurality of openings 37 at a side surface thereof, and the introduction pipe 47 serves as a support member when the plasma torch 17 is placed on the bottom surface, and the openings 37 are formed to facilitate cleaning of cutting debris.

Further, a strip-shaped block 52 perpendicular to the central axis is arranged at the top of the fixed pipe 30, an anti-skid rubber pad is arranged at the top of the strip-shaped block 52, and two ends of the strip-shaped block 52 are positioned below the sliding rod 28; when the return spring 43 springs up the return spring 43, the fixed tube 30 is lifted up, and the bar-shaped block 52 abuts against the sliding rod 28, thereby preventing the mounting seat 19 from sliding.

Finally, it should be emphasized that the plasma torch 17 of the present invention can be taken out from the fixing tube 30 for independent use, so the present invention can fix the plasma torch 17 for use, and can also be used freely.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A plasma cutting device comprises an introducing pipeline (47), and is characterized in that the top of the introducing pipeline (47) is coaxially connected with a second support ring (35), the diameter of the second support ring (35) is larger than that of the introducing pipeline (47), the top of the second support ring (35) is coaxially connected with a first support ring (34), the diameter of the first support ring (34) is smaller than that of the second support ring (35), the first support ring (34) is positioned in a rotating ring (48), and the rotating ring (48) is connected with the first support ring (34) through a bearing, so that the rotating ring (48) can rotate freely;

the inner diameters of the first support ring (34), the second support ring (35) and the introduction pipeline (47) are equal; the outer side wall of the rotating ring (48) is horizontally connected with a placing plate (26), a baffle plate (46) is vertically connected onto the placing plate (26), and the baffle plate (46) and the rotating ring (48) are arranged in the radial direction;

a second connecting plate (33) is horizontally connected to one side of the second support ring (35), the other end of the second connecting plate (33) is vertically connected with an L-shaped fixed seat (12), the top of the L-shaped fixed seat (12) is located above the second connecting plate (33), a ball screw (9) is vertically arranged at the tail end of the second connecting plate (33), the top of the ball screw (9) penetrates through the top of the L-shaped fixed seat (12) to be out, and the L-shaped fixed seat (12) and the ball screw (9) and the second connecting plate (33) are connected through bearings;

the ball screw on the ball screw (9) is fixed on the guide seat (15), the guide seat (15) penetrates through the ball screw (9), third guide rods (51) penetrate through two sides of the guide seat (15), and two ends of each third guide rod (51) are fixed with the top of the L-shaped fixed seat (12) and the top of the second connecting plate (33) respectively;

one side, far away from the L-shaped fixed seat (12), of the guide seat (15) is connected with two sliding rods (28) which are arranged in parallel, the sliding rods (28) are located right above the first supporting ring (34), and the other ends of the sliding rods (28) are connected together through a first connecting plate (25);

an installation seat (19) penetrates through the sliding rod (28), the installation seat (19) can freely slide along the sliding rod (28), the top surface of the installation seat (19) is vertically connected with a second guide rod (22), an adjusting seat (20) penetrates through the second guide rod (22), two ends of the adjusting seat (20) are provided with first guide rods (21) in a penetrating mode, and the bottom of each first guide rod (21) is fixed to the installation seat (19); a return spring (43) is sleeved on the second guide rod (22) between the mounting seat (19) and the adjusting seat (20), and the return spring (43) is respectively connected with the mounting seat (19) and the adjusting seat (20);

one side, close to the L-shaped fixed seat (12), of the adjusting seat (20) is connected with an L-shaped support frame (18), the lower end of the L-shaped support frame (18) vertically penetrates downwards to the lower side of the sliding rod (28) from the middle of the sliding rod (28), the lower end of the L-shaped support frame (18) is connected with a fixing pipe (30), and the central axis of the fixing pipe (30) is arranged in a mode of passing through the diameter of the guide-in pipeline (47); a grip (16) is inserted into the fixed pipe (30), an external thread is arranged on the surface of one end of the grip (16), the other end of the grip (16) is connected with a spray gun mounting seat (31), a plasma spray gun (17) is mounted in the spray gun mounting seat (31), the plasma spray gun (17) is vertically arranged downwards, and the center of the plasma spray gun (17) passes through the central point of the guide-in pipeline (47);

an annular retainer ring (42) is coaxially arranged at one end, close to the spray gun mounting seat (31), of the handle (16), the annular retainer ring (42) is abutted against the fixed pipe (30), and one end, far away from the annular retainer ring (42), of the handle (16) is fastened through a nut;

the middle part of one side of the adjusting seat (20) far away from the L-shaped fixed seat (12) is connected with a first handle (23), and the middle part of one side of the mounting seat (19) far away from the L-shaped fixed seat (12) is connected with a second handle (24).

2. A plasma cutting device according to claim 1, characterized in that the top of the rotating ring (48) is coaxially connected with a collar (27), the collar (27) seals the gap between the rotating ring (48) and the first support ring (34), and the collar (27) extends to the first support ring (34)

The top part and the middle part have no gap; the inner diameter of the retainer ring (27) is larger than that of the first support ring (34), and the edge of the first support ring (34) close to the center is provided with angle scales (32);

the inner wall of the retainer ring (27) is connected with a pointer (29) pointing to an angle scale (32), the pointer (29) and the baffle (46) are positioned in the same plane, and the top surfaces of the retainer ring (27) and the placing plate (26) are flush;

the bottom of one side, far away from the leading-in pipeline (47), of the placing plate (26) is connected with a fourth connecting seat (49), a positioning bolt (50) radially arranged with the leading-in pipeline (47) is connected onto the fourth connecting seat (49), and the tail end of the positioning bolt (50) is abutted against the side face of the second support ring (35).

3. A plasma cutting device according to claim 1, characterized in that the top of the ball screw (9) is connected to a crank (14).

4. The plasma cutting device as claimed in claim 1, wherein a threaded head (13) is connected to one side of the guide seat (15) far away from the sliding rod (28), an adjusting groove (10) is vertically formed in the outer side of the L-shaped fixed seat (12), and the threaded head (13) extends out of the adjusting groove (10) and is fastened through a locking nut (11).

5. A plasma cutting device according to claim 1, characterized in that the introducing pipe (47) is located at one end of the work table (45), the introducing pipe (47) is coaxially inserted in the supporting cylinder (6), the supporting cylinder (6) is fixedly connected to the end of the work table (45), and the supporting cylinder (6) is communicated with the work table (45);

the edge of the second support ring (35) is connected with at least two third connecting seats (36) at equal intervals, the third connecting seats (36) are in threaded connection with locking bolts (8) which are radially arranged on the support cylinder (6), the support cylinder (6) is positioned between the third connecting seats (36) and the guide pipeline (47), and the locking bolts (8) can be rotated to abut against the support cylinder (6);

a plasma cutting machine box body (41) and a tool box (38) are arranged on the top surface of the other end of the working table surface (45), a plasma cutting machine is arranged in the plasma cutting machine box body (41), and the plasma cutting machine is connected with the plasma spray gun (17) through a guide wire and a guide pipe;

two sides of the bottom surface of the working table surface (45) are vertically connected with the supporting plate (3);

the working table top (45) is connected to the top of the manual hydraulic forklift (1);

at least one partition plate (53) is arranged in the tool box (38), a gas cylinder fixing bin (54) is divided between the partition plate (53) and the tool box (38), and a gas cylinder is inserted in the gas cylinder fixing bin (54).

6. A plasma cutting device according to claim 5, characterized in that the two ends of the plasma cutter box (41) are provided with ventilation windows (40), and the top is connected with the cover plate (39) through a buckle.

7. The plasma cutting device according to claim 5, characterized in that universal wheels (44) are mounted at the positions, close to the vehicle head, of the two sides of the manual hydraulic forklift (1);

two first connecting seats (2) are symmetrically connected to the bottom surfaces of two sides of the manual hydraulic forklift (1), two second connecting seats (4) are symmetrically mounted at two ends of the working table top (45), and the second connecting seats (4) are located between the manual hydraulic forklift (1) and are arranged corresponding to the first connecting seats (2);

the second connecting seats (4) at the two ends of the working table surface (45) are connected through fixing screws (5), and the two ends of each fixing screw (5) are respectively arranged in the first connecting seats (2) and fastened through nuts;

chamfers (7) are arranged on the outer edge of the bottom of the leading-in pipeline (47) and the inner edge of the top of the supporting cylinder (6).

8. A plasma cutting device according to claim 1, characterized in that the side of the inlet duct (47) is provided with a plurality of openings (37).

9. The plasma cutting apparatus as claimed in claim 1, wherein a bar-shaped block (52) perpendicular to the central axis is provided on the top of the fixed pipe (30), a non-slip rubber pad is provided on the top of the bar-shaped block (52), and both ends of the bar-shaped block (52) are located below the slide bar (28).