A flame cutting machine for preventing deformation of special shaped steel

Abstract

The invention discloses an anti-deformation flame cutting machine specially used for special special-shaped steel, relates to the technical field of flame cutting machines, comprises a workbench, a slide rail is fixedly connected to the top of the workbench, a flame cutter is movably connected to the slide rail, and also comprises: an auxiliary preheating mechanism, a convenient switching mechanism and a uniform air supply mechanism. In the process of turning on the heating rod to preheat the special-shaped steel placed on the top of the support seat, the touch of the slide plate can make the switch synchronously turn on the driving source of the reciprocating screw rod, so that the reciprocating screw rod can drive the gears arranged on the U-shaped support plate to move synchronously, and the design of the U-shaped tooth plate can make the gears rotate and drive the fan blades to rotate synchronously, so that the wind flow is sent into the rectangular groove through the air supply hole, and then the wind flow is used to further promote the transfer of heat generated by heating the heating rod, so that the heat can be more quickly transferred to the surface of the special-shaped steel placed on the support seat, and the heat loss in the transfer process is reduced, thereby improving the energy utilization efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of flame cutting machines, in particular to an anti-deformation flame cutting machine specially used for special profiled steel. Background Art

[0002] In the prior art, a flame cutting machine is a cutting device that uses gas and oxygen or gasoline and oxygen to cut metal materials. It is widely used in multiple industries, including metal processing, architectural decoration, stone cutting, metallurgy, machinery manufacturing, medical equipment, power equipment, etc. For example, in the fields of automobiles, aviation, shipbuilding, bridges, and construction, flame cutting machines are often used to cut large steel plates or aluminum plates into parts of various shapes and specifications, achieving efficient and accurate cutting and improving production efficiency.

[0003] In the process of using a flame cutting machine to process special special-shaped steel, in order to prevent the special-shaped steel from being deformed due to changes in temperature differences, it is usually necessary to preheat the special-shaped steel. However, the current existing preheating method is often to set the heating source below the special-shaped steel when preheating the special-shaped steel, so that the special-shaped steel is placed statically above the heating source, and the heat generated by the heating source is transferred to the surface of the special-shaped steel. In this process, since the heat transfer path generated by the heating source is limited and there is no relevant structure to increase heat transfer at the heating source, only natural convection of air is used to transfer heat to the special-shaped steel, so that part of the heat is lost near the heating source, and the heat generated by the heating source cannot be fully utilized, and thus cannot be effectively transferred to the surface of the special-shaped steel, which reduces the utilization efficiency of the heating source and causes heat loss, thereby increasing energy consumption.

[0004] In view of this, the present invention proposes an anti-deformation flame cutting machine specifically used for special profiled steel to make up for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an anti-deformation flame cutting machine specially used for special-shaped steel to solve the corresponding technical problems raised in the above background technology.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: an anti-deformation flame cutting machine specially used for special-shaped steel, comprising a workbench, a slide rail is fixedly connected to the top of the workbench, a flame cutter is movably connected to the slide rail, and also comprises: an auxiliary preheating mechanism, a convenient switching mechanism and a uniform air supply mechanism, and the auxiliary preheating mechanism, the convenient switching mechanism and the uniform air supply mechanism are all arranged on the workbench;

[0007] The auxiliary preheating mechanism is used to perform auxiliary preheating on the workpiece to be processed;

[0008] The convenient switching mechanism is used to conveniently switch the preheating state;

[0009] The uniform air supply mechanism is used to uniformly supply the heat generated by preheating to the surface of the workpiece while the auxiliary preheating mechanism is performing auxiliary preheating on the workpiece.

[0010] Preferably, the auxiliary preheating mechanism includes a support base fixedly connected to the top of the workbench, the top of the support base is provided with air holes at equal intervals, the top of the workbench is provided with a rectangular groove, and a heating rod is fixedly connected in the rectangular groove.

[0011] Preferably, the convenient switching mechanism includes an annular slide groove equidistantly opened on the outer wall of the support seat, a slide plate is slidably connected in the slide groove, an L-shaped support rod is fixedly connected between the slide plates, and a push plate is fixedly connected to the front side of one of the slide plates.

[0012] Preferably, a linkage plate is symmetrically rotatably connected to the skateboard, an end of the linkage plate away from the skateboard is rotatably connected to a clamping plate, and the clamping plate is slidably connected to the support seat.

[0013] Preferably, a fixing plate is fixedly connected to the opposite side of the clamping plate, and circular through holes are penetrated through the fixing plate and the clamping plate.

[0014] Preferably, the convenient switching mechanism also includes a fixed block fixedly connected to the front side of the support seat, and the fixed block is arranged above the slide board, and a switch is arranged on the side of the fixed block facing the slide board, and the slide board is used to touch and turn on the switch.

[0015] Preferably, the uniform air supply mechanism includes side panels symmetrically fixedly connected to the bottom of the workbench, reciprocating screws are symmetrically rotatably connected between the side panels, transmission parts are transmission-connected between the reciprocating screws, air supply holes are equidistantly opened at the bottom of the workbench, and the air supply holes are connected to the rectangular grooves.

[0016] Preferably, the outer surface of the reciprocating screw is threadedly connected to a linkage block, a U-shaped support plate is fixedly connected between the bottoms of the linkage blocks, a linkage shaft is symmetrically passed through the U-shaped support plate and is rotatably connected, a fan blade is fixedly connected to the outer surface of the upper end of the linkage shaft, and a gear is fixedly connected to the outer surface of the lower end of the linkage shaft.

[0017] Preferably, a U-shaped tooth plate is symmetrically fixedly connected between the bottoms of the side plates, and the U-shaped tooth plate is meshingly connected to the gear.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) When the heating rod is turned on to preheat the special-shaped steel placed on the top of the support seat, the switch can be turned on synchronously by touching the slide plate to simultaneously turn on the driving source of the reciprocating screw, so that the reciprocating screw can drive the gear set on the U-shaped support plate to move synchronously. With the design of the U-shaped tooth plate, the gear can rotate and drive the fan blades to rotate synchronously, sending the air flow into the rectangular groove through the air supply hole. Then, the air flow is used to further promote the transfer of heat generated by the heating rod, so that the heat can be transferred to the surface of the special-shaped steel placed on the support seat more quickly, reducing the heat loss during the transfer process, thereby improving energy utilization efficiency and reducing production costs.

[0020] (2) This design utilizes the lateral uniform movement of the fan blades, and drives the fan blades to rotate synchronously while moving at a uniform speed through the meshing of the gears and the U-shaped tooth plate, so that the heat in different directions in the rectangular groove can be transferred to the surface of the special-shaped steel, thereby further promoting the heat transfer and making the heat more evenly delivered to the surface of the special-shaped steel, thereby improving the preheating effect of the special-shaped steel, effectively avoiding local overheating or underheating of the special-shaped steel, and reducing the risk of deformation of the special-shaped steel material caused by local overheating or underheating, thereby improving the quality of the product.

[0021] (3) By setting up a convenient switching mechanism, the circular through hole can be blocked at the same time as the preheating process ends and the switch is released, so as to prevent the heat generated from being transferred to the rectangular groove through the circular through hole when the flame cutter is used to process the special-shaped steel in the future, thereby damaging the heating rod. Moreover, when the preheating system no longer heats the special-shaped steel, the circular through hole can be blocked to ensure that the heat will not continue to be transferred or dissipated, thereby avoiding unnecessary energy waste. In addition, the heating system can be turned off by a simple mechanical action (pushing the push plate). This design reduces the complicated operation steps and the requirements for operators, making the operation more convenient and intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the support base shown in the present invention;

[0024] Figure 3 The present invention shows Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the card board connection shown in the present invention;

[0026] Figure 5 This is a schematic diagram of the split structure of the card board connection shown in the present invention;

[0027] Figure 6 It is a schematic diagram of the split structure of the connection of the fixed block shown in the present invention;

[0028] Figure 7 It is a schematic diagram of the bottom structure of the workbench shown in the present invention;

[0029] Figure 8 The present invention shows Figure 7 The enlarged structural diagram at B in the middle;

[0030] Fig. 9 It is a schematic diagram of the structure of the U-shaped support plate connection shown in the present invention.

[0031] The numbers in the figure are:

[0032] 1. Workbench; 2. Slide rail; 3. Flame cutter.

[0033] 4. Auxiliary preheating mechanism; 401. Support seat; 402. Air vent; 403. Rectangular groove; 404. Heating rod.

[0034] 5. Convenient switching mechanism; 501. Fixed block; 502. Switch; 503. Slide slot; 504. Slide plate; 505. Push plate; 506. L-shaped support rod; 507. Linkage plate; 508. Card plate; 509. Fixed plate; 510. Circular through hole.

[0035] 6. Uniform air supply mechanism; 601. Side plate; 602. Reciprocating screw rod; 603. Transmission member; 604. Linkage block; 605. U-shaped support plate; 606. Linkage shaft; 607. Fan blade; 608. Gear; 609. U-shaped tooth plate; 610. Air supply hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiments of the present invention: Please refer to Figures 1 to 9 As shown, a deformation-proof flame cutting machine specially used for special-shaped steel comprises a workbench 1, a slide rail 2 is fixedly connected to the top of the workbench 1, a flame cutter 3 is movably connected to the slide rail 2, and also comprises: an auxiliary preheating mechanism 4, a convenient switching mechanism 5 and a uniform air supply mechanism 6, and the auxiliary preheating mechanism 4, the convenient switching mechanism 5 and the uniform air supply mechanism 6 are all arranged on the workbench 1.

[0038] The auxiliary preheating mechanism 4 is used for auxiliary preheating of the workpiece to be processed;

[0039] The convenient switching mechanism 5 is used to conveniently switch the preheating state;

[0040] The uniform air supply mechanism 6 is used to uniformly supply the heat generated by preheating to the surface of the workpiece while the auxiliary preheating mechanism 4 performs auxiliary preheating on the workpiece;

[0041] The auxiliary preheating mechanism 4 includes a support base 401 fixedly connected to the top of the workbench 1 , and vent holes 402 are equidistantly provided on the top of the support base 401 . A rectangular groove 403 is provided on the top of the workbench 1 , and a heating rod 404 is fixedly connected in the rectangular groove 403 .

[0042] The convenient switching mechanism 5 includes an annular slide groove 503 equidistantly arranged on the outer wall of the support seat 401, a slide plate 504 is slidably connected in the slide groove 503, an L-shaped support rod 506 is fixedly connected between the slide plates 504, and a push plate 505 is fixedly connected to the front side of one of the slide plates 504.

[0043] A linkage plate 507 is symmetrically rotatably connected to the slide plate 504 , and a clamping plate 508 is rotatably connected to one end of the linkage plate 507 away from the slide plate 504 , and the clamping plate 508 penetrates and is slidably connected to the support seat 401 .

[0044] A fixing plate 509 is fixedly connected to the opposite side of the card plate 508. Circular through holes 510 are opened through the fixing plate 509 and the card plate 508. The two card plates 508 are clamped to each other, and the circular through holes 510 opened on the two fixing plates 509 are interconnected when clamped. At this time, the rectangular groove 403 and the air hole 402 are interconnected through the circular through holes 510 to transfer heat during preheating.

[0045] The convenient switching mechanism 5 also includes a fixed block 501 fixedly connected to the front side of the support seat 401, and the fixed block 501 is arranged above the slide plate 504. A switch 502 is arranged on the side of the fixed block 501 facing the slide plate 504. The slide plate 504 is used to touch and turn on the switch 502, and the switch 502 is electrically connected to the heating rod 404.

[0046] The effects achieved by this embodiment are as follows: by setting a heating rod 404 to preheat the special-shaped steel placed on the support seat 401, the temperature of the special-shaped steel can be increased. When the flame cutter 3 is used to process the special-shaped steel later, the stress caused by excessive temperature gradient during the processing of the special-shaped steel can be avoided, thereby reducing the deformation of the special-shaped steel. In addition, by preheating the special-shaped steel in advance before processing, problems such as uneven cutting surface, cracks and residues caused by too fast cooling of the special-shaped steel material can be effectively reduced, and residual stress can be avoided from forming inside the steel during the flame cutting process, causing the steel to still deform during subsequent processing or use, thereby improving the mechanical properties of the steel and the cutting quality of the steel.

[0047] By setting up a convenient switching mechanism 5, the circular through hole 510 can be blocked at the same time as the preheating process ends and the switch 502 is released, so as to avoid the heat generated when the flame cutter 3 is used to process the special-shaped steel in the future, being transferred to the rectangular groove 403 through the circular through hole 510 and damaging the heating rod 404. Moreover, when the preheating system no longer heats the special-shaped steel, the circular through hole 510 can be blocked to ensure that the heat will not continue to be transferred or dissipated, thereby avoiding unnecessary energy waste. In addition, the heating system can be turned off by a simple mechanical action (pushing the push plate 505). This design reduces complicated operating steps, reduces the requirements for operators, and makes the operation more convenient and intuitive.

[0048] For further examples, please refer to Figures 1 to 9 As shown, the uniform air supply mechanism 6 includes side panels 601 symmetrically fixedly connected to the bottom of the workbench 1, and reciprocating screws 602 are symmetrically rotatably connected between the side panels 601. An external driving source (driving motor) is fixedly connected to one of the side panels 601, and the output end of the driving motor is fixedly connected to one of the reciprocating screws 602. The driving motor is electrically connected to the switch 502. A transmission member 603 is transmission-connected between the reciprocating screws 602. The transmission member 603 consists of two transmission wheels and a transmission belt transmission-connected between the two transmission wheels, and the two transmission wheels are respectively fixedly connected to the two reciprocating screws 602. Air supply holes 610 are equidistantly provided at the bottom of the workbench 1, and the air supply holes 610 are communicated with the rectangular groove 403.

[0049] The outer surface of the reciprocating screw rod 602 is threadedly connected to a linkage block 604, and the linkage block 604 is slidably connected to the bottom wall of the workbench 1, a U-shaped support plate 605 is fixedly connected between the bottoms of the linkage block 604, and a linkage shaft 606 is symmetrically passed through the U-shaped support plate 605 and rotatably connected, a fan blade 607 is fixedly connected to the outer surface of the upper end of the linkage shaft 606, and a gear 608 is fixedly connected to the outer surface of the lower end of the linkage shaft 606.

[0050] A U-shaped tooth plate 609 is symmetrically fixedly connected between the bottoms of the side plates 601 , and the U-shaped tooth plate 609 is meshingly connected with the gear 608 .

[0051] The effects achieved by this embodiment are as follows: through the synchronous rotation of the fan blades 607, the airflow can be sent into the rectangular groove 403 through the air supply hole 610, and then the heat generated by heating the heating rod 404 is further promoted by the airflow, so that the heat can be more quickly transferred to the surface of the special-shaped steel placed on the support seat 401, reducing the loss of heat during the transfer process, thereby improving energy utilization efficiency and reducing production costs.

[0052] In addition, the present design utilizes the lateral uniform movement of the fan blade 607, and drives the fan blade 607 to rotate synchronously while moving at a uniform speed through the meshing of the gear 608 and the U-shaped tooth plate 609, so that the heat existing in different directions in the rectangular groove 403 can be transferred to the surface of the special-shaped steel, thereby further promoting the heat transfer, so that the heat can be more evenly delivered to the surface of the special-shaped steel, thereby improving the preheating effect of the special-shaped steel, effectively avoiding local overheating or underheating of the special-shaped steel, reducing the risk of deformation of the special-shaped steel material due to local overheating or underheating, and improving the quality of the product.

[0053] The complete usage steps and working principle of the above embodiment are as follows:

[0054] The following is a working process in which the auxiliary preheating mechanism 4 performs auxiliary preheating on the workpiece to be processed, and the uniform air supply mechanism 6 is used to uniformly supply the heat generated by the preheating to the surface of the workpiece while the auxiliary preheating mechanism 4 performs auxiliary preheating on the workpiece:

[0055] When in use, the special-shaped steel is first placed on the top of the support seat 401, and the placed special-shaped steel is preheated accordingly through the auxiliary preheating mechanism 4. At this time, the slide plate 504 is located at the upper end of the slide groove 503, and the top of the slide plate 504 and the switch 502 set at the bottom of the fixed block 501 are in contact with each other. The slide plate 504 abuts against the switch 502. Since the rectangular groove 403 is provided on the top of the workbench 1, and the heating rod 404 is fixedly connected inside the rectangular groove 403, and the power supply of the heating rod 404 is electrically connected to the switch 502, when the switch 502 is abutted by the slide plate 504, the power supply of the heating rod 404 can be turned on through the switch 502, so that the heating rod 404 is turned on and used for heating, thereby the support seat 401 is heated. The special-shaped steel placed on the preheating device is preheated to increase the temperature of the special-shaped steel. When the flame cutter 3 is used to process the special-shaped steel later, the stress caused by the excessive temperature gradient during the processing of the special-shaped steel is avoided, thereby reducing the deformation of the special-shaped steel, reducing the number of sparks and spatters generated during cutting, reducing the risk of fire and burns, and improving operation safety. In addition, by preheating the special-shaped steel in advance before processing, the problems of uneven cutting surface, cracks and residues caused by excessive cooling of the special-shaped steel material can be effectively reduced, and residual stress can be avoided in the steel during the flame cutting process, which causes the steel to still deform during subsequent processing or use, thereby improving the mechanical properties of the steel and the cutting quality of the steel.

[0056] In the above process, it is necessary to add that Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, since the support seat 401 is symmetrically penetrated and slidably connected with the card plate 508, and initially when the slide plate 504 is located at the upper end of the slide groove 503, the two card plates 508 are mutually engaged, and a fixing plate 509 is fixedly arranged on the opposite side of the card plate 508, and a circular through hole 510 is provided on the fixing plate 509. When the two card plates 508 are mutually engaged, the circular through holes 510 provided on the two fixing plates 509 also form a state of communication with each other. At this time, since the slide plate 504 is located at the upper end of the slide groove 503, The top of the slide plate 504 will abut against the switch 502, and the heating rod 404 will be turned on through the switch 502. Through the heating of the heating rod 404, the heat will be at the lower end of the support seat 401, and will pass through the circular through hole 510 to the upper end of the support seat 401. The heat that enters the upper end of the support seat 401 will leave the interior of the support seat 401 through the air vent 402 opened at the top of the support seat 401, and will eventually be transferred to the special-shaped steel placed on the top of the support seat 401, so as to preheat the special-shaped steel accordingly.

[0057] When the slide plate 504 is located at the inner upper end of the slide groove 503, the top of the slide plate 504 touches and abuts against the switch 502. Figure 7 , Figure 8 as well as Fig. 9 As shown, since the side plates 601 are symmetrically fixedly arranged at the bottom of the workbench 1, the reciprocating screws 602 are symmetrically rotated and connected between the two side plates 601, and one of the reciprocating screws 602 is fixedly connected to the external driving source (driving motor), and the driving motor is electrically connected to the switch 502. When the switch 502 turns on the heating rod 404 to preheat the special-shaped steel on the top of the support seat 401, the switch 502 synchronously turns on the driving motor, and through the output end of the driving motor, one of the reciprocating screws 602 can be driven to rotate between the two side plates 601. Because the two reciprocating screws 602 are connected by a transmission member 603, and the transmission member 603 is composed of two transmission wheels and a transmission belt connected between the two transmission wheels, and the two transmission wheels are respectively fixed on the outer surfaces of the two reciprocating screws 602, when the driving motor drives one of the reciprocating screws 602 to rotate, the other reciprocating screw 602 can be driven to rotate synchronously between the two side plates 601 through the transmission connection between the transmission belt and the two transmission wheels, as shown in FIG. Fig. 9 As shown, the outer surfaces of the two reciprocating screw rods 602 are both threadedly connected with linkage blocks 604, and a U-shaped support plate 605 is fixedly connected between the two linkage blocks 604. When the reciprocating screw rods 602 rotate, the two linkage blocks 604 can be driven to move laterally synchronously with the outer surfaces of the reciprocating screw rods 602. At the same time, the two linkage blocks 604 will also slide laterally on the bottom wall of the workbench 1. At this time, with the movement of the linkage blocks 604, the U-shaped support plate 605 set between the two linkage blocks 604 can be driven to move synchronously. Because the U-shaped support plate 605 is symmetrically penetrated and rotatably connected with a linkage shaft 606, and the upper end outer surface of the linkage shaft 606 is fixedly provided with a fan blade 607, and the lower end outer surface of the linkage shaft 606 is fixedly provided with a gear 608, and a U-shaped tooth plate 609 is symmetrically fixedly provided between the bottoms of the two side plates 601, and the U-shaped tooth plate 609 is meshingly connected with the gear 608, as shown in FIG. Figure 8As shown, when the linkage block 604 moves laterally on the outer surface of the reciprocating screw rod 602 and drives the U-shaped support plate 605 to move synchronously, the position of the gear 608 is displaced synchronously. At this time, through the meshing between the teeth, the U-shaped toothed plate 609 can drive the gear 608 to rotate synchronously under the U-shaped support plate 605. Because the gear 608 and the fan blade 607 are coaxially fixedly installed on the linkage shaft 606, when the gear 608 rotates, the linkage shaft 606 can be driven to rotate synchronously on the U-shaped support plate 605. Through the rotation of the linkage shaft 606, the fan blade 607 installed above the linkage shaft 606 can be driven to rotate synchronously under the workbench 1. Since the air supply hole 610 is provided on the bottom wall of the rectangular groove 403, when the fan blade 607 rotates, the air flow can be sent into the rectangular groove 403 through the air supply hole 610, and then the heat generated by the heating rod 404 is heated by the air flow. The amount of heat further promotes the transfer, so that the heat can be transferred more quickly to the surface of the special-shaped steel placed on the support seat 401, reducing the loss of heat during the transfer process, thereby improving energy utilization efficiency and reducing production costs. Since the fan blade 607 follows the lateral movement of the linkage block 604 and moves horizontally synchronously under the workbench 1, the position of the fan blade 607 is in a state of uniform change. By utilizing the movement of the fan blade 607, the heat in different directions in the rectangular groove 403 can be transferred to the surface of the special-shaped steel, so that while preheating the special-shaped steel, it can further promote the transfer of heat, so that the heat can be more evenly delivered to the surface of the special-shaped steel, thereby improving the preheating effect of the special-shaped steel, effectively avoiding local overheating or underheating of the special-shaped steel, reducing the risk of deformation of the special-shaped steel material due to local overheating or underheating, and improving the quality of the product.

[0058] Please refer to the above working process Figures 1 to 9 .

[0059] The following is the working process of the convenient switching mechanism 5 for conveniently switching the preheating state:

[0060] When it is necessary to stop the preheating of the special-shaped steel and use the flame cutter 3 to process the special-shaped steel, Figure 3 As shown, the staff can push the push plate 505 downward, so that the push plate 505 drives the slide plate 504 to slide downward in the slide groove 503 provided on the support seat 401 synchronously, as shown in FIG. Figure 4As shown, since the slide plate 504 and the two card plates 508 are rotatably connected with the linkage plate 507, and the card plates 508 are slidably connected to the support seat 401, and the two card plates 508 are in a mutually clamped connection relationship in the preheating state, when the slide plate 504 is forced to slide downward in the slide groove 503, the two card plates 508 can be driven to slide outward on the support seat 401 (that is, slide in the direction opposite to the two card plates 508) through the drive of the linkage plate 507. At this time, the clamping relationship between the two card plates 508 is released, and the slide plate 504 does not contact the switch 502 set on the fixed block 501, which will simultaneously turn off the driving source of the heating rod 404 and the reciprocating screw rod 602, thereby changing the preheating state of the special-shaped steel. Figure 4 and Figure 5 As shown, since a fixing plate 509 is fixedly provided on the opposite side of the clamping plate 508, and a circular through hole 510 is provided on the fixing plate 509, when the two clamping plates 508 are clamped together and the special-shaped steel is heated by the heating rod 404, the two circular through holes 510 are connected to each other, and as the two clamping plates 508 move away from each other, the fixing plate 509 can be synchronously followed to move, so that the circular through holes 510 connected to each other from top to bottom are staggered, and the circular through holes 510 are blocked at this time, so as to avoid the special-shaped steel being processed by the flame cutter 3 in the subsequent process. When the preheating system is turned on, the generated heat is transferred to the rectangular groove 403 through the circular through hole 510, causing damage to the heating rod 404. Moreover, when the preheating system no longer heats the special-shaped steel, the circular through hole 510 can be blocked to ensure that the heat will not continue to be transferred or lost, thereby avoiding unnecessary energy waste. In addition, the heating system can be turned off by a simple mechanical action (pushing the push plate 505). This design reduces complicated operating steps, reduces the requirements for operators, and makes the operation more convenient and intuitive.

[0061] Please refer to the above working process Figures 1 to 9 .

[0062] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame cutting machine for preventing deformation of special-shaped steel, comprising a workbench (1), a slide rail (2) fixedly connected to the top of the workbench (1), a flame cutter (3) movably connected to the slide rail (2), characterized in that: The machine also comprises: an auxiliary preheating mechanism (4), a convenient switching mechanism (5) and a uniform air supply mechanism (6), wherein the auxiliary preheating mechanism (4), the convenient switching mechanism (5) and the uniform air supply mechanism (6) are all arranged on the workbench (1); the auxiliary preheating mechanism (4) is used for auxiliary preheating of the workpiece to be processed; the convenient switching mechanism (5) is used for conveniently switching the preheating state; the uniform air supply mechanism (6) is used for uniformly supplying the heat generated by preheating to the surface of the workpiece while the auxiliary preheating mechanism (4) is auxiliary preheating the workpiece; The auxiliary preheating mechanism (4) comprises a support base (401) fixedly connected to the top of the workbench (1), the top of the support base (401) is provided with air holes (402) at equal intervals, the top of the workbench (1) is provided with a rectangular groove (403), and a heating rod (404) is fixedly connected in the rectangular groove (403); The convenient switching mechanism (5) comprises an annular slide groove (503) equidistantly arranged on the outer wall of the support seat (401), a slide plate (504) being slidably connected in the slide groove (503), an L-shaped support rod (506) being fixedly connected between the slide plates (504), and a push plate (505) being fixedly connected to the front side of one of the slide plates (504); The convenient switching mechanism (5) further comprises a fixing block (501) fixedly connected to the front side of the support seat (401), and the fixing block (501) is arranged above the slide plate (504), and a switch (502) is arranged on a side of the fixing block (501) facing the slide plate (504), and the slide plate (504) is used to touch and turn on the switch (502); The uniform air supply mechanism (6) comprises side plates (601) symmetrically fixedly connected to the bottom of the workbench (1); reciprocating screws (602) are symmetrically rotatably connected between the side plates (601); transmission members (603) are transmission-connected between the reciprocating screws (602); air supply holes (610) are equidistantly provided at the bottom of the workbench (1), and the air supply holes (610) are in communication with the rectangular grooves (403).

2. The anti-deformation flame cutting machine specially used for special-shaped steel according to claim 1, characterized in that: The slide plate (504) is symmetrically rotatably connected to a linkage plate (507), one end of the linkage plate (507) away from the slide plate (504) is rotatably connected to a clamping plate (508), and the clamping plate (508) penetrates and is slidably connected to the support seat (401).

3. The anti-deformation flame cutting machine specially used for special-shaped steel according to claim 2, characterized in that: A fixing plate (509) is fixedly connected to the opposite side of the clamping plate (508), and a circular through hole (510) is provided through the fixing plate (509) and the clamping plate (508).

4. The anti-deformation flame cutting machine specially used for special-shaped steel according to claim 3, characterized in that: The outer surface of the reciprocating screw rod (602) is threadedly connected to a linkage block (604); a U-shaped support plate (605) is fixedly connected between the bottoms of the linkage blocks (604); a linkage shaft (606) is symmetrically passed through the U-shaped support plate (605) and is rotatably connected; a fan blade (607) is fixedly connected to the outer surface of the upper end of the linkage shaft (606); and a gear (608) is fixedly connected to the outer surface of the lower end of the linkage shaft (606).

5. The anti-deformation flame cutting machine specially used for special-shaped steel according to claim 4, characterized in that: A U-shaped toothed plate (609) is symmetrically fixedly connected between the bottoms of the side plates (601), and the U-shaped toothed plate (609) is meshingly connected with the gear (608).

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