CN113996881A

CN113996881A - Novel semi-automatic flame cutting machine

Info

Publication number: CN113996881A
Application number: CN202111496089.1A
Authority: CN
Inventors: 晋卫兵; 董卫毫; 王法庆
Original assignee: Beihui Lvjian Group Co ltd
Current assignee: Beihui Lvjian Group Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-02-01
Anticipated expiration: 2041-12-08
Also published as: CN113996881B

Abstract

The invention relates to the technical field of cutting machines, and discloses a novel semi-automatic flame cutting machine, which comprises a track module, wherein a machine box module, an equipment body module and a cutting module are arranged above the track module, the overall shape of the track module is asymmetrical H-shaped, the track module comprises a track, two ends of the track are respectively provided with a track convex opening and a track concave opening, the middle of the track is welded and connected by a track cross beam for forming, and the track module, the equipment body module and the cutting module are arranged, so that the device has the advantages of simple mechanism, convenient operation and low cost, is provided with a splicing type guide rail and can replace a numerical control cutting machine tool to a certain extent, can realize the groove machining at any angle and any position, can ensure the product quality, reduce the labor cost, improve the working efficiency, can accurately control the groove machining angle and effectively control high welding quality, thereby realizing the effect of semi-automatic production.

Description

Novel semi-automatic flame cutting machine

Technical Field

The invention relates to the technical field of cutting machines, in particular to a novel semi-automatic flame cutting machine.

Background

A flame cutting machine is a cutting device for cutting metal materials by using propane and oxygen mixed gas. The method is mainly used for heavy industry, and along with popularization of steel structure application, in order to guarantee welding quality, grooves are required to be machined frequently in steel welding. Mechanical equipment in the market can not realize the groove preparation of curved surface and complicated component at present, and artifical machining inefficiency, the groove "cockscomb structure" is serious, and the quality can't be guaranteed, in order to evade above current situation problem, but a free control, realize the flame cutting machine of semi-automatization production urgently needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a novel semi-automatic flame cutting machine which has the advantages of effectively controlling the quality of a crevasse to improve the welding quality, further realizing the effect of semi-automatic production and the like.

(II) technical scheme

In order to achieve the purpose of effectively controlling the quality of the crevasses to improve the welding quality and further achieve the effect of semi-automatic production, the invention provides the following technical scheme: the utility model provides a novel semi-automatic flame cutting machine, including the track module, the top of track module sets up organic case module, equipment body module and cutting module, the whole shape of track module is asymmetric H shape, the track module is including the track, track tang and notch have been seted up respectively at the track both ends, by track crossbeam welded connection shaping in the middle of the track, fixed mounting has the fixing base on the crossbeam at track middle part, the fixing base passes through round pin and locking lever swing joint, the terminal activity of locking lever has cup jointed expanding spring, expanding spring is close to track crossbeam's one end fixedly connected with handle.

Preferably, the case module comprises a case body, the case body is a sheet metal part, and the control panel is fixedly embedded outside the case.

Preferably, the equipment body module comprises a base, a transverse moving driving motor, a transverse moving rod sleeve, two driven belt pulleys, a vertical driving motor, a longitudinal moving driving motor and a transverse moving rod gear, wherein four cylindrical guide rails are fixedly mounted on the upper surface of the base, and a protection plate is fixedly mounted at the upper ends of the four cylindrical guide rails.

Preferably, the upper surface of frame fixed mounting has two vertical bearings of area seat, and the equal fixedly connected with lead screw in upper end of two vertical bearings of area seat, two lead screw upper ends mesh with two driven pulley respectively and are connected, and the equal screw thread in outside of two lead screws has cup jointed the slider, and two sliders fixed connection are respectively in the sheathed tube both sides of sideslip pole.

Preferably, the sheathed tube inside sliding connection of sideslip has the sideslip pole, the downside fixedly connected with sideslip pole spur rack of sideslip pole, sideslip pole spur rack is connected for the meshing with sideslip pole gear, sideslip pole gear is connected for the meshing with sideslip driving motor, swing joint has the drive pulley on the vertical driving motor, be provided with the hold-in range between drive pulley and two driven pulleys, fixed mounting has last spacing sleeve and lower spacing sleeve on the lift platform, go up spacing sleeve and the equal movable sleeve of lower spacing sleeve cup joint in the outside of cylindrical guide rail, it installs on the frame to indulge the driving motor fixed mounting, it has the turbine to indulge the outside fixed cover of output shaft that moves driving motor, the turbine meshing is connected with the scroll bar, the equal fixed mounting in both ends of scroll bar has the guide rail wheel.

Preferably, the cutting module is including crank gear, crank, cutting torch, the lantern ring, internal gear, riser, cutting driving motor and telescopic bracket, and the riser is installed at sideslip pole terminal surface, and fixed mounting has a support frame upper fixed plate on the riser, and fixed mounting has a support frame bottom plate on the riser, is provided with two gyro wheels and cutting drive gear between support frame bottom plate and the support frame upper fixed plate, and cutting drive gear is connected with the transmission of cutting driving motor.

Preferably, pillar swing joint is at support frame upper fixed plate, and the below of pillar is provided with the bar tooth, and the below meshing of bar tooth is connected with two bar tooth gyro wheels, and two bar tooth gyro wheels rotate to be connected on telescopic bracket, and telescopic bracket's lower extreme fixed mounting has expanding spring, and telescopic bracket fixed mounting is on the pillar, and crank gear swing joint is on the crank, and the crank rotates to be connected in the pillar, and the crank gear is connected for the meshing with the bar tooth.

Preferably, the cutting torch cup joints in the inside of the lantern ring, and the lantern ring carries out swing joint through the round pin with the bar tooth, and the internal gear is connected with cutting drive gear meshing, and the internal gear is tangent cooperation with two gyro wheels, and fixed cover has connect interior ball ring on the cutting torch, and interior ball ring activity cup joints in the inside of outer ball ring, and outer ball ring fixed mounting is at the outer wall of internal gear, and the lower extreme threaded connection of cutting torch has the cutting torch. The pearl frame subassembly and the cooperation of internal gear reduce the resistance, and it is rotatory to improve the internal gear precision, can realize two free rotations, and first can be cutting torch free rotation in outer ball ring, and the second cutting torch can be around the pillar free rotation under the control of cutting driving motor.

(III) advantageous effects

Compared with the prior art, the invention provides a novel semi-automatic flame cutting machine, which has the following beneficial effects:

1. this novel semi-automatic flame cutting machine, through setting up the track module, equipment body module and cutting module, it is simple and easy to make this device reach the mechanism, high durability and convenient operation, and is with low costs, be furnished with concatenation formula guide rail, the transport is convenient, can replace numerical control cutting machine tool to a certain extent, the groove preparation of arbitrary angle and arbitrary bent type steel sheet can be realized to this device simultaneously, can guarantee groove preparation quality, reduce the cost of labor, improve work efficiency, and groove preparation angle can accurate control, can effectual control welding quality, and then realize semi-automatization production's effect.

2. This novel semi-automatic flame cutting machine through adjusting the cutting torch, and is rotatory through the crank, drives the bar tooth, and the bar flank is marked the number of degrees, adjusts to the formulation number of degrees according to cutting angle, and the bar tooth passes through round pin and muffjoint, and the sleeve can slide from top to bottom at the neck of cutting torch under the effect of bar tooth, and then reaches the effect of adjusting the cutting torch angle wantonly, and then accurate control groove machining angle.

3. This novel semi-automatic flame cutting machine, through drive sideslip driving motor, indulge and move driving motor and vertical driving motor and carry out coarse adjusting and fine setting to the cutting torch, if Z axle direction needs to be adjusted, vertical driving motor that moves starts drive pulley and drives the hold-in range, the motion of hold-in range drive driven pulley, and then the lead screw just can be rotatory, the slider reciprocates under the power effect of lead screw, and then make sideslip pole and cutting gun remove at the Z axle, the last sideslip sleeve that is fixed with of lift platform, the last spacing sleeve that is fixed with of lift platform moves on circular guide with lower spacing sleeve, can guarantee lift platform's stability and the security of equipment.

4. This novel semi-automatic flame cutting machine, through cutting driving motor to the rotatory angle of pulse size accurate control internal gear is in order to adjust outer ball ring rotation angle, and the cutting torch passes through interior ball ring and outer ball ring cooperation, can realize the cutting torch around the pillar accurate rotation, can keep perpendicularly all the time with the curve tangent line under the condition of guaranteeing the cutting torch can pass through steel sheet curve tangent line point, guarantees the uniformity of groove angle through this mode, can exert the maximum value to cutting efficiency simultaneously. In the rotating process of the inner gear, the cutting gun can freely rotate in the outer spherical ring, and the phenomenon that the gas pipe is screwed because of the rotation of the inner gear can be avoided.

5. This novel semi-automatic flame cutting machine, through splicing the track according to the processing requirement, two tracks, tang and notch cooperation, artifical pulling handle makes the locking lever around the rotatory one hundred eighty degrees of fixing base and another guide rail hasp cooperation to reach the fixed effect of track butt joint.

6. This novel automatic flame cutting machine, internal gear and the cooperation of pearl frame subassembly to improve the internal gear rotation accuracy.

Drawings

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

FIG. 2 is a schematic perspective view of the main body of the case of FIG. 1 according to the present invention;

FIG. 3 is a schematic perspective view of the track of FIG. 1 according to the present invention;

FIG. 4 is a schematic perspective view of the base of FIG. 1 according to the present invention;

FIG. 5 is an exploded view of the cutting module of FIG. 1 according to the present invention;

FIG. 6 is a schematic cross-sectional view of the bar tooth of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic view of a lower fixing plate of the supporting frame of FIG. 5 according to the present invention;

FIG. 8 is a schematic view of the configuration of the internal gear of FIG. 5 in accordance with the present invention.

Fig. 9 is a schematic view of the bevel cutting process of fig. 1 according to the present invention.

Fig. 10 is a schematic view of the cutting module of fig. 1 showing the rotation of the cutting gun according to the present invention.

In the figure: 1. a track module; 11. a track; 12. a tension spring; 14. a lock lever; 15. a fixed seat; 16. a rail bead; 17. a recess; 2. a chassis module; 21. a chassis body; 22. a control panel; 3. an equipment body module; 31. a machine base; 32. a straight rack of the transverse rod; 33. a traverse driving motor; 34. a lifting platform; 35. a traversing rod sleeve; 36. a driven pulley; 37. a synchronous belt; 38. a guard plate; 39. a drive pulley; 310. a traversing rod; 311. a cylindrical guide rail; 312. a vertical drive motor; 313. an upper limiting sleeve; 314. a lower limiting sleeve; 315. a lead screw; 316. a slider; 317. a guide rail wheel; 318. a turbine; 319. a longitudinal movement driving motor; 320. a scroll bar; 321. a vertical bearing with a seat; 322. a traverse bar gear; 4. a cutting module; 41. a fixing plate is arranged on the supporting frame; 42. a pillar; 43. a hand crank; 44. a crank gear; 45. a bar-shaped tooth; 46. a round pin; 47. a gas pipe; 48. cutting the torch; 49. a cutting gun neck; 410. a collar; 411. an inner ball ring, 412, a cutting nozzle; 413. an outer ball ring; 414. a lower fixing plate of the support frame; 415. an internal gear; 416. a bead stand mount; 417. a bar-shaped gear roller; 418. a cutting drive motor; 419. a tension spring; 420. a telescopic bracket; 421. cutting the driving gear; 422. a roller; 423. a vertical plate; 424. and a ball.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular element.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: the utility model provides a novel semi-automatic flame cutting machine, including track module 1, track module 1's top sets up organic case module 2, equipment body module 3 and cutting module 4, track module 1 whole shape is asymmetric H shape, track module 1 is including track 11, track tang 16 and notch 17 have been seted up respectively at track 11 both ends, by track crossbeam welded connection shaping in the middle of track 11, fixed mounting has fixing base 15 on the crossbeam at track 11 middle part, fixing base 15 is through round pin and 14 swing joint of locking lever, expanding spring 12 has been cup jointed in 14 terminal activities of locking lever, expanding spring 12 is close to the one end fixedly connected with handle of track 11 crossbeam.

The case module comprises a case body 21 and a control panel 22, wherein the case body 21 is a sheet metal part, and the control panel 22 is fixedly embedded outside the case 21.

The device body module 3 comprises a base 31, a transverse moving driving motor 33, a lifting platform 34, a transverse moving rod sleeve 35, two driven belt pulleys 36, a vertical driving motor 312, a longitudinal moving driving motor 319 and a transverse moving rod gear 322, wherein four cylindrical guide rails 311 are fixedly arranged on the upper surface of the base 31, a guard plate 38 is fixedly arranged at the upper ends of the four cylindrical guide rails 311, two vertical bearings 321 with seats are fixedly arranged on the upper surface of the base 31, the upper ends of the two vertical bearings 321 with seats are fixedly connected with lead screws 315, the upper ends of the two lead screws 315 are respectively engaged and connected with the two driven belt pulleys 36, slide blocks 316 are respectively sleeved outside the two lead screws 315 in a threaded manner, the two slide blocks 316 are respectively and fixedly connected with the two sides of the transverse moving rod sleeve 35, a transverse moving rod 310 is slidably connected inside the transverse moving rod sleeve 35, a transverse moving rod rack 32 is fixedly connected with the lower side of the transverse moving rod 310, the transverse moving rod rack 32 is engaged and connected with the transverse moving rod gear 322, the transverse moving rod gear 322 is connected with the transverse moving driving motor 33 in a meshed mode, a driving belt pulley 39 is movably connected to the vertical driving motor 312, a synchronous belt 37 is arranged between the driving belt pulley 39 and the two driven belt pulleys 36, an upper limiting sleeve 313 and a lower limiting sleeve 314 are fixedly mounted on the lifting platform 34, the upper limiting sleeve 313 and the lower limiting sleeve 314 are movably sleeved on the outer portion of the cylindrical guide rail 311, the longitudinal moving driving motor 319 is fixedly mounted on the base 31, a turbine 318 is fixedly sleeved on the outer portion of an output shaft of the longitudinal moving driving motor 319, the turbine 318 is connected with a worm 320 in a meshed mode, and guide rail wheels 317 are fixedly mounted at two ends of the worm 320.

The cutting module 4 comprises a hand crank gear 44, a hand crank 43, a cutting gun 48, a lantern ring 410, an internal gear 415, a vertical plate 423, a cutting driving motor 418 and a telescopic support 420, wherein the vertical plate 423 is fixedly arranged on the end surface of the transverse rod 310, a supporting frame upper fixing plate 41 is fixedly arranged on the vertical plate 423, a supporting frame lower fixing plate 414 is fixedly arranged on the vertical plate 423, two rollers 422 and a cutting driving gear 421 are arranged between the supporting frame lower fixing plate 414 and the supporting frame upper fixing plate 41, the cutting driving gear 421 is in transmission connection with the cutting driving motor 418, a support column 42 is movably connected on the supporting frame upper fixing plate 41, a strip-shaped tooth 45 is arranged below the support column 42, two strip-shaped tooth rollers 417 are connected below the strip-shaped tooth 45 in a meshing manner, the two strip-shaped tooth rollers 417 are rotatably connected on the telescopic support 420, a telescopic spring 419 is fixedly arranged at the lower end of the telescopic support 420, the telescopic support 420 is fixedly arranged on the support column 42, crank gear 44 swing joint is on crank 43, crank 43 rotates to be connected on pillar 42, crank gear 44 is connected for the meshing with bar tooth 46, cutting gun 45 cup joints the inside at lantern ring 49, sleeve 49 carries out swing joint through 46 round pins with bar tooth 45, internal gear 415 meshes with cutting drive gear 421 and two gyro wheels 422 and is connected, cutting gun neck 49 cooperation has the 410 lantern ring, the 410 lantern ring can rotate automatically and slide on 49 cutting gun neck, 48 cutting gun cup joints interior ball ring 411, interior ball ring 411 swing joint is in the inside of outer ball ring 413, outer ball ring 413 fixed mounting is at the outer wall of internal gear 415, the lower extreme threaded connection of cutting gun 48 has cutting torch 412, the top of cutting gun 48 is equipped with gas pipe 47.

When in use, the utility model is used,

first, at first, confirm the groove cutting angle size according to the processing requirement clearly, and then adjust cutting torch 48, it is rotatory through crank 43, drive bar tooth 45, bar tooth 45 side marks the number of degrees, adjusts to the prescription number of degrees according to cutting angle, and bar tooth 45 is connected with lantern ring 49 through 46 round pins, and lantern ring 49 can slide from top to bottom at cutting torch neck 49 under bar tooth 45's effect, and then adjusts cutting torch 412 angle.

And secondly, splicing the rails according to the size of the steel plate, matching the two rails 18, the convex opening 16 and the notch 17, manually pulling the handle 13 to enable the lock rod 14 to rotate around the fixed seat 15 by one hundred eighty degrees to be matched with another guide rail in a locking way, and thus the butt joint and fixation effects of the rails 11 are achieved.

Thirdly, before the border patrol, the system extracts DXF graphic information, identifies and calculates each tangent point of the curve and the tangent line passing the tangent point, the rotating angle of the inner gear is accurately controlled through the pulse size of the cutting driving motor 418 so as to adjust the rotating angle of the outer spherical ring 413, the cutting gun 48 is matched with the outer spherical ring 413 through the inner spherical ring 411, the cutting gun 48 can accurately rotate around the strut 42, and the cutting gun 48 can be always vertical to the tangent line of the curve under the condition that the cutting gun 48 can pass the tangent point of the curve of the steel plate. The cutting torch 412 starts to perform edge patrol, in the process of adjusting the edge patrol, manual control drives the transverse moving driving motor 33, the longitudinal moving driving motor 319 and the vertical driving motor 312 perform coarse adjustment and fine adjustment on the cutting torch 413, if the Z-axis direction needs to be adjusted, the vertical moving driving motor 312 starts the driving belt pulley 39 to drive the synchronous belt 37, the synchronous belt 37 drives the driven belt pulley 36 to move, the lead screw 315 rotates, the sliding block 316 moves up and down under the power action of the lead screw 315, the transverse moving rod 310 and the cutting gun 48 move on the Z axis, the transverse moving sleeve 35 is fixed on the lifting platform 34, the upper limiting sleeve 313 and the lower limiting sleeve 314 are fixed on the lifting platform 34 to move on the circular guide rail 311, the stability of the lifting platform 34 and the safety of equipment can be guaranteed, and the adjustment of the cutting torch 413 in the Z-axis direction can be achieved.

Fourthly, if the X-axis direction needs to be adjusted, the traverse driving motor 33 drives the traverse rod gear 322 and the traverse rod spur rack 32 to enable the traverse rod 310 to move so as to achieve the adjustment of the cutting nozzle 413 in the X-axis direction, if the Y-axis direction needs to be adjusted, the longitudinal driving motor 319 drives the turbine 318 and the worm 320 to enable the guide rail wheel 317 to move on the guide rail 11 so as to achieve the adjustment of the cutting nozzle 413 in the Y-axis direction, after the edge patrol adjustment is finished, the cutting gun 45 sends air to ignite, the linkage switch is started, the system extracts DXF graphic information, each tangent line point of the curve and the tangent line passing the tangent line point are identified and calculated, the rotating angle of the inner gear is accurately controlled through the pulse size of the cutting driving motor 418 so as to adjust the rotating angle of the outer spherical ring 413, the cutting gun 48 is matched with the outer spherical ring 413 through the inner spherical ring 411, the accurate rotation of the cutting gun 48 around the strut 42 can be realized, and the XY motion of the longitudinal driving motor 319 and the traverse driving motor 33 can be realized under the system control, so as to ensure that the cutting gun 48 can always keep vertical to the tangent line of the curve of the steel plate under the condition of passing through the tangent point of the curve. The cutting nozzle 413 is accurately controlled by the system to cut according to the drawing requirements, after cutting is finished, the cutting nozzle 413 is flamed out, and the whole construction is finished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel semi-automatic flame cutting machine, including track module (1), its characterized in that: the top of track module (1) sets up organic case module (2), equipment body module (3) and cutting module (4), track module (1) whole shape is asymmetric H shape, track module (1) is including track (11), track tang (16) and notch (17) have been seted up respectively at track (11) both ends, by track crossbeam welded connection shaping in the middle of track (11), fixed mounting has fixing base (15) on the crossbeam at track (11) middle part, fixing base (15) are through round pin and locking lever (14) swing joint, expanding spring (12) have been cup jointed in the end activity of locking lever (14), one end fixedly connected with handle that expanding spring (12) are close to track (11) crossbeam.

2. The novel semi-automatic flame cutting machine of claim 1, characterized in that: the case module comprises a case body (21) and a control panel (22), the case body (21) is a sheet metal part, and the control panel (22) is fixedly embedded in the outer portion of the case (21).

3. The novel semi-automatic flame cutting machine of claim 1, characterized in that: the device body module (3) comprises a base (31), a transverse moving driving motor (33), a lifting platform (34), a transverse moving rod sleeve (35), two driven belt pulleys (36), a vertical driving motor (312), a longitudinal moving driving motor (319) and a transverse moving rod gear (322), wherein four cylindrical guide rails (311) are fixedly mounted on the upper surface of the base (31), and a protection plate (38) is fixedly mounted at the upper ends of the four cylindrical guide rails (311).

4. The novel semi-automatic flame cutting machine of claim 3, characterized in that: the upper surface fixed mounting of frame (31) has two vertical bearings of taking seat (321), and the equal fixedly connected with lead screw (315) in upper end of two vertical bearings of taking seat (321), two lead screw (315) upper ends mesh with two driven pulley (36) respectively and are connected, and the equal screw thread in outside of two lead screws (315) has cup jointed slider (316), and two slider (316) are fixed connection respectively in the both sides of sideslip pole sleeve pipe (35).

5. The novel semi-automatic flame cutting machine of claim 4, characterized in that: the inner part of the transverse moving sleeve (35) is connected with a transverse moving rod (310) in a sliding manner, the lower side of the transverse moving rod (310) is fixedly connected with a transverse moving rod spur rack (32), the transverse moving rod spur rack (32) is connected with a transverse moving rod gear (322) in a meshing manner, the transverse moving rod gear (322) is connected with a transverse moving driving motor (33) in a meshing manner, a driving belt pulley (39) is movably connected onto a vertical driving motor (312), a synchronous belt (37) is arranged between the driving belt pulley (39) and two driven belt pulleys (36), an upper limiting sleeve (313) and a lower limiting sleeve (314) are fixedly installed on a lifting platform (34), the upper limiting sleeve (313) and the lower limiting sleeve (314) are movably sleeved on the outer part of a cylindrical guide rail (311), a longitudinal moving driving motor (319) is fixedly installed on a machine base (31), a turbine (318) is fixedly sleeved on the outer part of an output shaft of the longitudinal moving driving motor (319), the worm wheel (318) is engaged with a worm rod (320), and both ends of the worm rod (320) are fixedly provided with guide wheels (317).

6. The novel semi-automatic flame cutting machine of claim 1, characterized in that: cutting module (4) is including crank gear (44), crank (43), cutting gun (48), the lantern ring (410), internal gear (415), riser (423), cutting driving motor (418) and telescopic bracket (420), install at sideslip pole (310) terminal surface riser (423), fixed mounting has support frame upper fixed plate (41) on riser (423), fixed mounting has support frame lower fixed plate (414) on riser (423), install two gyro wheels (422) and cutting drive gear (421) between support frame lower fixed plate (414) and support frame upper fixed plate (41), cutting drive gear (421) are connected with cutting driving motor (418) transmission, pearl frame seat (416) are fixed on support frame lower fixed plate (141), ball (424) are installed in pearl frame seat (416).

7. The novel semi-automatic flame cutting machine of claim 6, characterized in that: pillar (42) swing joint is at support frame upper fixed plate (41), the below of pillar (42) is provided with the bar tooth, the below meshing of bar tooth (45) is connected with two bar tooth gyro wheels (417), two bar tooth gyro wheels (417) rotate to be connected on telescopic bracket (420), the lower extreme fixed mounting of telescopic bracket (420) has expanding spring (419), telescopic bracket (420) fixed mounting is on pillar (42), crank gear (44) swing joint is on crank (43), crank (43) rotate to be connected in pillar (42), crank gear (42) are connected for the meshing with bar tooth (45).

8. The novel semi-automatic flame cutting machine of claim 7, characterized in that: neck (49) of cutting gun (45) cup joints the inside at lantern ring (410), lantern ring (410) and bar tooth (45) carry out swing joint through the round pin, internal gear (415) are connected with cutting drive gear (418) meshing, two gyro wheels (422) and internal gear (415) tangent cooperation, fixed cover has been connect interior ball ring (411) on cutting gun (48), interior ball ring (411) clearance fit is in the inside of outer ball ring (413), outer ball ring (413) fixed mounting is at the outer wall of internal gear (415), the lower extreme threaded connection of cutting gun (48) has cutting nozzle (412).