CN115647519A

CN115647519A - Welding gun guiding device for flame cutting

Info

Publication number: CN115647519A
Application number: CN202211279156.9A
Authority: CN
Inventors: 张其锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-01-31

Abstract

The invention provides a welding gun guiding device for flame cutting, which relates to the technical field of guiding devices and comprises: a support table; a metal plate is placed on the upper portion of the supporting table, a guide plate is placed on the upper end face of the metal plate, two Y-shaped sliding rails are symmetrically arranged in front and back of the upper end face of the guide plate, and the upper portions of the two Y-shaped sliding rails are connected with a flame cutting machine main body in a sliding mode. According to the flame cutting machine, the guide plate can be fixed on the metal plate through the arrangement of the fixing part, so that the guide plate is prevented from being deviated, and welding slag near the pulley can be blown out from the interior of the slide rail shaped like a Chinese character' \21274bythe matching of the driving gear, the fixing rack and the dust blowing mechanism, so that the phenomenon of bumping when the flame cutting machine body moves is avoided; the problem of traditional guider when using, guider take place the skew phenomenon easily, the welding slag that flame cutting produced splashes to the slide rail inside easily moreover, leads to the flame cutting machine to appear jolting the phenomenon in the removal is solved.

Description

Welding gun guiding device for flame cutting

Technical Field

The invention relates to the technical field of guiding devices, in particular to a welding gun guiding device for flame cutting.

Background

Flame cutting is a common way for rough machining of metal plates, and when the metal plates are cut, a flame cutting machine is generally used, and a welding gun on the flame cutting machine needs to be guided by a guide device in the moving cutting process.

However, although the conventional guiding device for the welding gun can guide the flame cutting machine and the welding gun, the conventional guiding device is usually directly placed on a metal plate when in use, and the flame cutting machine and the welding gun are in the moving process, because the flame cutting machine has certain inertia in the moving process, the slight deviation phenomenon easily occurs to the guiding device, the stability of the guiding device in use is further reduced, the cutting precision of the welding gun is influenced, and the conventional guiding device guides the flame cutting machine and the welding gun, because a large amount of welding slag can be generated in the flame cutting process, and the welding slag can be easily splashed inside a sliding rail on the guiding device, so that the welding slag can be rolled by a pulley at the bottom of the flame cutting machine, and the bumping phenomenon can occur when the flame cutting machine moves.

Disclosure of Invention

In view of the above, the invention provides a welding gun guiding device for flame cutting, which can fix a guide plate onto a metal plate through the arrangement of a fixing part, so that the guide plate is not deviated even if the flame cutting machine main body has certain inertia in the moving process, and welding slag near a pulley can be blown out from the interior of a \ 21274by the matching of a driving gear, a fixing rack and a dust blowing mechanism, thereby effectively avoiding the phenomenon of bumping when the flame cutting machine main body moves.

The invention provides a welding gun guiding device for flame cutting, which specifically comprises: a support table; a metal plate is placed on the upper part of the support table, a guide plate is placed on the upper end face of the metal plate, two Y-shaped sliding rails are symmetrically arranged in front and back of the upper end face of the guide plate, and the upper parts of the two Y-shaped sliding rails are connected with a flame cutting machine main body in a sliding manner; the left end and the right end of the outer part of the guide plate are connected with a sliding adjusting part in a sliding mode, each sliding adjusting part is provided with two fixing parts, and the lower end of each fixing part is provided with a locking part; both ends all are equipped with one and blow dirt mechanism about the flame cutting machine main part.

Optionally, a fixed rack is fixedly connected to the middle of the upper end surface of the guide plate, and adjusting insertion holes are uniformly formed in the left side and the right side of the upper end surface of the guide plate; rectangular through openings are uniformly formed in the front end surface and the rear end surface of each of the v-shaped slide rails 21274.

Optionally, the welding gun is mounted on the flame cutting machine main body through a bracket, a pulley is mounted at the bottom of the flame cutting machine main body, and the pulley is connected with a slide rail shaped like a Chinese character' 21274; the middle of the bottom end face of the flame cutting machine main body is rotatably connected with a driving rotating shaft, a driving gear is installed on the inner side of the outer portion of the driving rotating shaft, and the driving gear is meshed with a fixed rack.

Optionally, the sliding adjusting part comprises two v-shaped sliding blocks, a rectangular sliding barrel, a sliding block, a limiting inserted bar, a lifting rod and a fixing plate, wherein the two v-shaped sliding blocks are respectively connected to the front side and the rear side of the guide plate in a sliding manner, and the fixing plate is welded at the bottom end face of the two v-shaped sliding blocks; the upper end face of each of the v-shaped sliding blocks is fixedly connected with a rectangular sliding barrel, a sliding block is slidably connected inside each rectangular sliding barrel, the upper end of each sliding block is provided with a lifting rod penetrating through the upper part of the rectangular sliding barrel, a spring is sleeved inside each lifting rod positioned inside the rectangular sliding barrel, and the upper ends of the two lifting rods are fixedly connected with lifting plates; and the lower end of each sliding block is provided with a limiting inserted rod penetrating through the bottom of the rectangular sliding barrel.

Optionally, when the sliding adjusting part is in a limiting state, the lower end of the limiting insertion rod is inserted into one of the adjusting insertion hole inserts.

Optionally, the fixing part comprises an L-shaped support plate, a clamping block, a driving nut, a clamping screw and a one-way wheel, the L-shaped support plate is welded on the 21274; the drive nut is rotatably connected to the bottom end face of the L-shaped support plate, a one-way wheel is arranged outside the drive nut, and fan-shaped limiting teeth are arranged on the outer peripheral surface of the one-way wheel in an annular array shape.

Alternatively, when the drive nut is in a clockwise rotation state, the clamping screw will carry the clamping block in an upward movement state.

Optionally, the dust blowing mechanism comprises a blowing cover, an air conveying pipe fitting, air outlet cylinders and a blowing impeller, the blowing cover is fixedly installed on the flame cutting machine main body, an air outlet of the blowing cover is connected with the air conveying pipe fitting through an air pipe, the air conveying pipe fitting is installed on the lower portion of one side face of the flame cutting machine main body, the bottom end face of the air conveying pipe fitting is uniformly provided with the two air outlet cylinders, and air outlets at the lower ends of the two air outlet cylinders are respectively located at the positions above the two v-shaped sliding rails 21274; the blowing impeller is fixedly connected to one end of the driving rotating shaft, one end of the driving rotating shaft penetrates through one side face of the blowing cover, and the blowing impeller is located inside the blowing cover.

Optionally, the locking portion comprises a locking sliding shell, a locking sliding block, a pulling rod, a limiting plate and a rotating handle, the locking sliding shell is mounted on the bottom end face of the L-shaped support plate, the locking sliding block is connected to the inside of the locking sliding shell in a sliding mode, the head end of the locking sliding block is provided with a triangular limiting block, the tail end of the locking sliding block is provided with the pulling rod penetrating through the tail portion of the locking sliding shell, the tail end of the pulling rod is connected with the rotating handle in a rotating mode, and a spring is sleeved on the pulling rod and located inside the locking sliding shell; and two limiting plates are arranged at the tail end of the locking sliding shell.

Optionally, when the locking portion is in the locking state, the triangular limiting block at the head end of the locking slider is in close contact with the outer circumferential surface of the one-way wheel.

Advantageous effects

According to the guide device of each embodiment of the invention, compared with the traditional guide device, through the arrangement of the fixing part, the nut is driven by manual clockwise rotation, the clamping screw drives the clamping block to move upwards under the action of the thread, so that the upper end surface of the clamping block is in close contact with the bottom end surface of the metal plate, the guide plate is fixed on the metal plate, the flame cutting machine main body is enabled not to generate a deviation phenomenon even if the flame cutting machine main body has certain inertia in the moving process, the stability of the guide device in use is further improved, and the cutting precision of a welding gun is prevented from being influenced.

In addition, through the matching of the driving gear, the fixed rack and the dust blowing mechanism, the driving rotating shaft can be driven to move left and right simultaneously in the process that the flame cutting machine body drives the welding gun to move left and right, so that the driving gear drives the driving rotating shaft to rotate under the action of the fixed rack, and the two blowing impellers are driven to rotate, so that a suction force is generated at the air suction port of the blowing cover, then external air is conveyed into the air conveying pipe fitting on the right side, and then the air is blown to the positions above the two \\ 21274-shaped sliding rails through the two air outlet barrels at the bottom of the air conveying pipe fitting, so that welding slag near the pulleys is blown out from the insides of the \ 21274-shaped sliding rails, and the phenomenon that the welding slag is rolled by the pulleys is effectively avoided, the phenomenon that the flame cutting machine body jolts during moving is effectively avoided, and the cutting precision of the welding gun is improved.

In addition, through the setting of locking portion, after clockwise screwing up drive nut, press from both sides tight screw and drive under the screw thread effect and press from both sides tight piece rebound, then press from both sides tight sheet metal spare through pressing from both sides tight piece up end, and this moment because the triangle-shaped stopper of lock non-slip piece head end will with one-way wheel outer peripheral face in close contact with to make one-way wheel can not carry out anticlockwise rotation, thereby effectively avoided drive nut to take place the phenomenon of anticlockwise not hard up, and then improved the reliability when fixed part fastening operation.

In addition, through the cooperation of drive gear and fixed rack, can remove the in-process about the flame cutting machine main part, drive gear rotates to can drive the drive pivot and two impeller rotations of blowing, thereby make two blow dirt mechanisms need not to be equipped with the motor when blowing the operation, thereby saved the cost, reduced the loss of the energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to some embodiments of the invention only and are not intended to limit the invention.

In the drawings:

FIG. 1 shows a schematic view of a first perspective of a guide according to an embodiment of the invention;

FIG. 2 shows a schematic view of a second perspective of a guide according to an embodiment of the invention;

fig. 3 shows a schematic view of a guiding device according to an embodiment of the invention in a disassembled state;

FIG. 4 shows a schematic diagram at a partial enlargement in FIG. 1 according to an embodiment of the invention;

FIG. 5 shows a schematic view of a torch cutter body and a dust blowing mechanism according to an embodiment of the present invention;

FIG. 6 shows a schematic diagram at a partial enlargement B of FIG. 1 according to an embodiment of the invention;

FIG. 7 shows a schematic view of a guide plate and torch cutter body from the right according to an embodiment of the invention;

fig. 8 shows a schematic view of a slide adjusting portion according to an embodiment of the present invention;

FIG. 9 shows a schematic view of a slide adjusting portion and a fixing portion according to an embodiment of the present invention;

FIG. 10 illustrates a schematic bottom view of the fixed portion and the latch portion according to an embodiment of the present invention;

FIG. 11 illustrates a schematic diagram in partial cross-section of a locking slide housing according to an embodiment of the present invention;

fig. 12 shows a schematic view of a blow cover according to an embodiment of the invention in partial section.

List of reference numerals

1. A support table; 2. a metal plate member; 3. a guide plate member; 301. v-shaped slide rails of 21274; 302. a rectangular through opening; 303. adjusting the jack; 304. fixing a rack; 4. a torch cutter body; 401. a welding gun; 402. a pulley; 403. a dust sweeping brush; 404. driving the rotating shaft; 405. a drive gear; 5. a slide adjusting section; 501. v-shaped sliders; 502. a rectangular slide cylinder; 503. a slider; 504. a limiting inserted rod; 505. lifting a pull rod; 506. a fixing plate; 6. a fixed part; 601. an L-shaped support plate; 602. a clamping block; 603. a drive nut; 604. clamping the screw rod; 605. a one-way wheel; 7. a dust blowing mechanism; 701. a blower housing; 702. a wind delivery pipe fitting; 703. an air outlet cylinder; 704. a blowing impeller; 8. a lock section; 801. locking the sliding shell; 802. a locking slide block; 803. pulling a rod; 804. a limiting plate; 805. the handle is rotated.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.

Example 1: please refer to fig. 1 to fig. 12:

the invention provides a welding gun guiding device for flame cutting, which comprises: a support table 1; a metal plate 2 is placed on the upper part of the support table 1, a guide plate 3 is placed on the upper end face of the metal plate 2, two slide rails 301 shaped like 21274are symmetrically arranged on the upper end face of the guide plate 3 in a front-back manner, and the upper parts of the two slide rails 301 shaped like 21274are connected with a flame cutting machine main body 4 in a sliding manner; the left end and the right end of the outer part of the guide plate 3 are both connected with a sliding adjusting part 5 in a sliding manner, each sliding adjusting part 5 is provided with two fixing parts 6, and the lower end of each fixing part 6 is provided with a locking part 8; the left end and the right end of the flame cutting machine main body 4 are respectively provided with a dust blowing mechanism 7; the middle part of the upper end face of the guide plate 3 is fixedly connected with a fixed rack 304, and the left side and the right side of the upper end face of the guide plate 3 are uniformly provided with adjusting jacks 303; rectangular through openings 302 are uniformly formed in the front end surface and the rear end surface of each wing 21274301, and the flame cutting machine main body 4 and the welding gun 401 can be effectively guided when moving through the two wing 21274301 on the guide plate 3.

In addition, according to the embodiment of the invention, as shown in fig. 1 and 5, the welding gun 401 is mounted on the torch cutting machine body 4 through a bracket, the pulley 402 is mounted at the bottom of the torch cutting machine body 4, and the pulley 402 is connected with the v-shaped slide rail 301 in a sliding manner; the middle part of the bottom end face of the flame cutting machine main body 4 is rotatably connected with a driving rotating shaft 404, a driving gear 405 is installed on the inner side of the outer part of the driving rotating shaft 404, the driving gear 405 is meshed with the fixed rack 304, and the driving gear 405 is driven to rotate in the left-right moving process of the flame cutting machine main body 4 through the matching of the driving gear 405 and the fixed rack 304, so that the driving rotating shaft 404 and the two blowing impellers 704 can be driven to rotate, and the two dust blowing mechanisms 7 do not need to be equipped with motors when blowing;

as shown in fig. 1, 4 and 8, the sliding adjusting part 5 comprises two lifting rods 501, two rectangular sliding barrels 502, two sliding blocks 503, two limiting insertion rods 504, two lifting rods 505 and two fixing plates 506, wherein the two lifting rods 501 are slidably connected to the front and back sides of the guide plate 3; the upper end face of each rectangular sliding barrel 501 is fixedly connected with a rectangular sliding barrel 502, a sliding block 503 is slidably connected inside each rectangular sliding barrel 502, the upper end of each sliding block 503 is provided with a lifting rod 505 penetrating through the upper part of the rectangular sliding barrel 502, a spring is sleeved inside each lifting rod 505 positioned inside the rectangular sliding barrel 502, and the upper ends of the two lifting rods 505 are fixedly connected with lifting plates; the lower end of each sliding block 503 is provided with a limit inserted rod 504 which penetrates through the bottom of the rectangular sliding barrel 502; when the sliding adjusting part 5 is in a limiting state, the lower end of the limiting insertion rod 504 is inserted into one of the adjusting insertion holes 303, and the sliding adjusting part 5 is arranged to adjust the position of the fixing part 6;

as shown in fig. 9 and 10, the fixing portion 6 includes an L-shaped support plate 601, a clamping block 602, a driving nut 603, a clamping screw 604 and a one-way wheel 605, the L-shaped support plate 601 is welded on the v-shaped slider 501, the clamping block 602 is connected on the L-shaped support plate 601 in a sliding manner, the bottom end face of the clamping block 602 is fixedly connected with the clamping screw 604 penetrating through the bottom end face of the L-shaped support plate 601, and the exterior of the clamping screw 604 is connected with the driving nut 603 through threads; the driving nut 603 is rotatably connected to the bottom end face of the L-shaped support plate 601, a one-way wheel 605 is arranged outside the driving nut 603, and fan-shaped limiting teeth are arranged on the outer peripheral surface of the one-way wheel 605 in an annular array; when the driving nut 603 is in the clockwise rotation state, the clamping screw 604 brings the clamping block 602 in the upward movement state, so that the upper end face of the clamping block 602 is brought into contact with the bottom end face of the sheet metal element 2, and the guide sheet element 3 is fixed to the sheet metal element 2;

as shown in fig. 5 and 12, the dust blowing mechanism 7 includes a blowing cover 701, an air delivery pipe 702, air outlet cylinders 703 and a blowing impeller 704, the blowing cover 701 is fixedly mounted on the flame cutting machine main body 4, an air outlet of the blowing cover 701 is connected with the air delivery pipe 702 through an air pipe, the air delivery pipe 702 is mounted at the lower part of one side of the flame cutting machine main body 4, the bottom end surface of the air delivery pipe 702 is uniformly provided with the two air outlet cylinders 703, and air outlets at the lower ends of the two air outlet cylinders 703 are respectively located at the upper parts of the two \\ 21274font sliding rails 301; the blowing impeller 704 is fixedly connected to one end of the driving rotating shaft 404, one end of the driving rotating shaft 404 penetrates through one side face of the blowing cover 701, the blowing impeller 704 is located inside the blowing cover 701 and is used for blowing air into the v-shaped 21274301 in the moving process of the flame cutting machine main body 4 through the arrangement of the dust blowing mechanism 7, so that welding slag inside the v-shaped 21274301 can be blown out and is prevented from being rolled by the pulley 402;

as shown in fig. 9 to 11, the locking portion 8 includes a locking sliding shell 801, a locking slider 802, a pulling rod 803, a limiting plate 804 and a rotating handle 805, the locking sliding shell 801 is mounted on the bottom end face of the L-shaped support plate 601, the locking slider 802 is slidably connected inside the locking sliding shell 801, the triangular limiting block is arranged at the head end of the locking slider 802, the pulling rod 803 penetrating through the tail portion of the locking sliding shell 801 is arranged at the tail end of the locking slider 802, the rotating handle 805 is rotatably connected at the tail end of the pulling rod 803, and a spring is sleeved inside the locking sliding shell 801 on the pulling rod 803; two limiting plates 804 are arranged at the tail end of the locking sliding shell 801; when the locking part 8 is in the locking state, the triangular limiting block at the head end of the locking slider 802 is in close contact with the outer peripheral surface of the one-way wheel 605, so that the one-way wheel 605 cannot rotate anticlockwise, and the phenomenon that the clamping block 602 is loosened by clamping operation is effectively avoided.

Example 2: please refer to fig. 1, fig. 5 and fig. 6:

two dust brushes 403 are symmetrically arranged on the left side and the right side of the bottom end surface of the torch cutter main body 4 in a front-back manner, and the four dust brushes 403 are respectively in close contact with the bottom end surfaces of the inner sides of the two v-shaped sliding rails 301, so that welding slag near the pulleys 402 can be cleaned in advance through the dust brushes 403 in the left-right moving process of the torch cutter main body 4, and the effect of cleaning the welding slag inside the v-shaped sliding rails 301 is further improved.

Example 3: please refer to fig. 1 to fig. 12:

the front side surface and the rear side surface of the guide plate member 3 are both provided with strip-shaped sliding grooves, and a strip-shaped sliding block is arranged on the vertical side surface inside each of the rectangular sliding blocks 501 and is in sliding connection with the strip-shaped sliding grooves, so that the rectangular sliding blocks 501 are more stable when sliding on the guide plate member 3.

The specific use mode and function of the embodiment are as follows: when the device is used, firstly, a guide plate 3 is placed on the upper end face of a metal plate 2, then the lifting plate is lifted upwards, two lifting rods 505 drive two sliding blocks 503 and two limiting insertion rods 504 to move upwards, the limiting insertion rods 504 are pulled out of the interior of an adjusting insertion hole 303, then the lifting plate lifted upwards moves leftwards and rightwards, one side face of an L-shaped support plate 601 is contacted with one side face of the guide plate 3, then the lifting plate is loosened, the two sliding blocks 503 drive the limiting insertion rods 504 to be inserted into the interior of the adjusting insertion hole 303 under the action of springs outside the lifting rods 505, so that a sliding adjusting part 5 is limited, then a driving nut 603 is rotated clockwise (seen from bottom to top) manually, a clamping screw 604 drives a clamping block 602 to move upwards under the action of threads, so that the upper end face of the clamping block 602 is in close contact with the bottom end face of the metal plate 2, and the guide plate 3 is fixed on the metal plate 2;

when the flame cutting machine body 4 moves left and right with the welding gun 401, the driving rotating shaft 404 is driven to move left and right at the same time, so that the driving gear 405 drives the driving rotating shaft 404 to rotate under the action of the fixing rack 304, so that the two blowing impellers 704 are driven to rotate, when the flame cutting machine body 4 moves right, the driving rotating shaft 404 drives the blowing impeller 704 on the front side to rotate clockwise, so that suction is generated at the air suction port of the blowing cover 701 on the front side, then external air is conveyed into the air delivery pipe 702 on the right side, then the air is blown to the positions above the two v-shaped sliding rails 301 through the two air outlet barrels 703 at the bottom of the air delivery pipe 702 on the right side, so that welding slag near the pulley 402 on the right side is blown out of the v-shaped sliding rails 301, and when the flame cutting machine body 4 moves left, the driving rotating shaft 404 drives the blowing impeller 704 on the rear side to rotate anticlockwise, so that the air suction port of the blowing cover 701 on the rear side is conveyed into the air delivery pipe 301, and then the air is blown out of the v-shaped sliding rails 7421274702 through the two air outlet barrels at the bottom of the left side of the air delivery pipe 702.

Finally, it should be noted that, when describing the positions of the components and the matching relationship between the components, the invention will be generally exemplified by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other components/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A torch guide for flame cutting, comprising: a support table (1); a metal plate (2) is placed on the upper part of the support table (1), a guide plate (3) is placed on the upper end face of the metal plate (2), two slide rails (301) shaped like a Chinese character '21274are symmetrically arranged in front and back on the upper end face of the guide plate (3), and the upper parts of the two slide rails (301) shaped like a Chinese character' 21274are slidably connected with a flame cutting machine main body (4); the left end and the right end of the outer part of the guide plate piece (3) are connected with a sliding adjusting part (5) in a sliding mode, each sliding adjusting part (5) is provided with two fixing parts (6), and the lower end of each fixing part (6) is provided with a locking part (8); both ends all are equipped with one and blow dirt mechanism (7) about flame cutting machine main part (4).

2. A torch guide for flame cutting as defined in claim 1, wherein: the middle part of the upper end face of the guide plate member (3) is fixedly connected with a fixed rack (304), and the left side and the right side of the upper end face of the guide plate member (3) are uniformly provided with adjusting insertion holes (303); the front end surface and the rear end surface of each of the v-shaped slide rails (301) are uniformly provided with rectangular through holes (302).

3. A torch guide for flame cutting as defined in claim 1, wherein: a welding gun (401) is mounted on the flame cutting machine main body (4) through a support, a pulley (402) is mounted at the bottom of the flame cutting machine main body (4), and the pulley (402) is connected with a slide rail (301) shaped like a Chinese character '\' 21274; the middle of the bottom end face of the flame cutting machine main body (4) is rotatably connected with a driving rotating shaft (404), a driving gear (405) is installed on the middle side of the outer portion of the driving rotating shaft (404), and the driving gear (405) is meshed with the fixed rack (304).

4. A torch guide for flame cutting as defined in claim 2, wherein: the sliding adjusting part (5) comprises two v-shaped sliding blocks (501), a rectangular sliding barrel (502), sliding blocks (503), a limiting insertion rod (504), a lifting rod (505) and a fixing plate (506), wherein the number of the v-shaped sliding blocks (501) is two, the two v-shaped sliding blocks (501) are respectively connected to the front side and the rear side of the guide plate (3) in a sliding manner, and the fixing plate (506) is welded on the bottom end surface of the two v-shaped sliding blocks (501); the upper end face of each of the rectangular slide blocks (501) is fixedly connected with a rectangular slide cylinder (502), the interior of each rectangular slide cylinder (502) is slidably connected with a slide block (503), the upper end of each slide block (503) is provided with a lifting rod (505) which penetrates through the upper part of the rectangular slide cylinder (502), the interior of each rectangular slide cylinder (502) on each lifting rod (505) is sleeved with a spring, and the upper ends of the two lifting rods (505) are fixedly connected with lifting plates; the lower end of each sliding block (503) is provided with a limiting inserted rod (504) penetrating through the bottom of the rectangular sliding barrel (502).

5. A torch guide for flame cutting as defined in claim 4, wherein: when the sliding adjusting part (5) is in a limiting state, the lower end of the limiting insertion rod (504) is inserted into one of the adjusting insertion holes (303).

6. A torch guide for flame cutting as set forth in claim 4, wherein: the fixing part (6) comprises an L-shaped support plate (601), a clamping block (602), a driving nut (603), a clamping screw (604) and a one-way wheel (605), the L-shaped support plate (601) is welded on the V-shaped sliding block (501), the clamping block (602) is connected onto the L-shaped support plate (601) in a sliding mode, the bottom end face of the clamping block (602) is fixedly connected with the clamping screw (604) penetrating through the bottom end face of the L-shaped support plate (601), and the driving nut (603) is connected to the outer portion of the clamping screw (604) through threads; the driving nut (603) is rotatably connected to the bottom end face of the L-shaped support plate (601), a one-way wheel (605) is arranged outside the driving nut (603), and fan-shaped limiting teeth are arranged on the outer peripheral surface of the one-way wheel (605) in an annular array.

7. A torch guide for flame cutting as defined in claim 6, wherein: when the driving nut (603) is in a clockwise rotation state, the clamping screw (604) carries the clamping block (602) to be in an upward movement state.

8. A torch guide apparatus for torch cutting as set forth in claim 3, wherein: the dust blowing mechanism (7) comprises a wind blowing cover (701), a wind conveying pipe fitting (702), wind outlet cylinders (703) and a wind blowing impeller (704), the wind blowing cover (701) is fixedly arranged on the flame cutting machine main body (4), the wind outlet of the wind blowing cover (701) is connected with the wind conveying pipe fitting (702) through a wind pipe, the wind conveying pipe fitting (702) is arranged on the lower portion of one side face of the flame cutting machine main body (4), the bottom end face of the wind conveying pipe fitting (702) is uniformly provided with the two wind outlet cylinders (703), and the wind blowing ports at the lower ends of the two wind outlet cylinders (703) are respectively positioned above the two 21274301; the blowing impeller (704) is fixedly connected to one end of the driving rotating shaft (404), one end of the driving rotating shaft (404) penetrates through one side face of the blowing cover (701), and the blowing impeller (704) is located inside the blowing cover (701).

9. A torch guide for flame cutting as defined in claim 6, wherein: the locking part (8) comprises a locking sliding shell (801), a locking sliding block (802), a pulling rod (803), a limiting plate (804) and a rotating handle (805), the locking sliding shell (801) is installed on the bottom end face of the L-shaped support plate (601), the locking sliding shell (801) is connected with the locking sliding block (802) in a sliding mode, a triangular limiting block is arranged at the head end of the locking sliding block (802), the pulling rod (803) penetrating through the tail portion of the locking sliding shell (801) is arranged at the tail end of the locking sliding block (802), the rotating handle (805) is connected to the tail end of the pulling rod (803) in a rotating mode, and a spring is sleeved inside the locking sliding shell (801) on the pulling rod (803); two limiting plates (804) are arranged at the tail end of the locking sliding shell (801).

10. A torch guide for flame cutting as defined in claim 9, wherein: when the locking part (8) is in a locking state, the triangular limiting block at the head end of the locking slide block (802) is in close contact with the outer peripheral surface of the one-way wheel (605).