CN115741127A

CN115741127A - Workpiece cutting device based on preheating processing

Info

Publication number: CN115741127A
Application number: CN202211575614.3A
Authority: CN
Inventors: 曾芳
Original assignee: Jiangsu Datong Precision Machinery Parts Co ltd
Current assignee: Jiangsu Datong Precision Machinery Parts Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-07

Abstract

The invention discloses a workpiece cutting device based on preheating processing, which relates to the field of workpiece processing and comprises an outer shell and a top cover, wherein a gas cutting layer and a preheating layer are respectively arranged in the outer shell and the top cover, the gas cutting layer and the preheating layer are in a communicated state, a preheating assembly is arranged in the preheating layer, a cutting assembly is arranged in the gas cutting layer, a transmission assembly for connecting the preheating assembly and the cutting assembly is arranged in the outer shell, an arc striking carbon rod of the preheating assembly and a cutting nozzle of the cutting assembly are changed along a guide rail on movement, so that the precision and stability of the preheating wire and the cutting wire can be kept, the cutting precision is kept, and the workpiece cutting device is more convenient to process in the follow-up process; preheat the mode that the subassembly adopted electric arc to heat, compare in the mode that adopts the remote intensification of spray gun to preheat, save more to the energy consumption, the programming rate is faster, and is also lower to the influence of bimetal antifriction plate simultaneously.

Description

Workpiece cutting device based on preheating processing

Technical Field

The invention relates to the technical field of machining, in particular to a workpiece cutting device based on preheating machining.

Background

The high-alloy wear-resistant layer is formed on the surface of the substrate by the surfacing method to form the bimetal composite wear-resistant steel plate, and the bimetal composite wear-resistant steel plate can be applied to a plurality of different fields, and has very many applications in a plurality of different industrial fields such as metallurgy, cement, electric power, coal and the like due to good bearing capacity and wear resistance.

The bimetal wear-resistant steel plate needs to be preheated in the process of machining and cutting, the wear-resistant plate which is not preheated directly cuts, cracks can be generated on the edge of a cutting point, subsequent use is influenced, and preheating treatment is needed for the cutting process of the bimetal wear-resistant steel plate

The common pre-cutting method for the wear-resistant plate is characterized in that a cutting worker uses a gas-cutting spray gun to perform pre-heating treatment on a cutting line under the low-temperature condition, and then uses higher temperature to cut the wear-resistant plate.

Disclosure of Invention

The invention aims to provide a workpiece cutting device based on preheating processing, which aims to solve the problem of unstable manual preheating cutting in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a workpiece cutting device based on preheating processing comprises an outer shell and a top cover, wherein a gas cutting layer and a preheating layer are respectively arranged in the outer shell and the top cover, the gas cutting layer and the preheating layer are in a communicated state, a preheating assembly is arranged in the preheating layer, a cutting assembly is arranged in the gas cutting layer, a transmission assembly for connecting the preheating assembly and the cutting assembly is arranged in the outer shell, two side walls in the preheating layer are respectively provided with a heat insulation plate, a first guide groove and a second guide groove are vertically distributed on the heat insulation plate, a main body structure of the preheating assembly moves back and forth along the first guide groove, the cutting assembly moves back and forth along the second guide groove, an arc striking carbon rod of the preheating assembly and a cutting nozzle of the cutting assembly change through a guide rail and along the guide rail in the moving process, the accuracy and the stability of a preheating wire and a cutting wire can be kept, the cutting accuracy is kept, and the subsequent processing is more convenient; compared with a mode of adopting a spray gun to heat and preheat remotely, the preheating assembly has the advantages that the energy consumption is saved, the heating speed is higher, and the influence on the bimetal wear-resisting plate is lower; preheat and all can produce extremely many heats with the cutting, but two steps all set up and go on with the shell body is inside at the overhead guard, can completely cut off the influence of the heat that produces man-hour to outside, and operating personnel can obtain better operational environment.

Preferably, the preheating assembly body is a front guide rail, two ends of the preheating assembly body are respectively provided with a front guide wheel which moves back and forth along a first guide groove, a push rod moves left and right on the front guide rail, a carbon rod which moves up and down is arranged in the push rod, the carbon rod is used for arc striking, and the position of the carbon rod can be controlled, the position of the struck arc is adjusted and preheating processing operation is carried out through the back and forth movement of the front guide rail and the left and right movement of the push rod on the front guide rail.

Preferably, the top end of the top cover is provided with a group frame, a plurality of H bridges are arranged in the middle of the group frame, a relay is arranged in the front of the group frame, the carbon rod is connected with the H bridges and the relay is connected with the H bridges through conducting wires, and electric arcs led by the carbon rod are controlled through logic valves such as the relay and the H bridges.

Preferably, the cutting component main body is a rear guide rail, two ends of the cutting component main body are respectively provided with a rear guide wheel which moves back and forth along a second guide groove, an air inlet assembly moving left and right is arranged on the rear guide rail, a combustible gas inlet, a high-pressure oxygen inlet, an ignition device and a control valve are integrated in the air inlet assembly, the bottom end of the air inlet assembly is provided with a cutting opening, a high-temperature flame is sprayed out of the cutting opening, the preheating wire is cut, and the cutting wire is adjusted through the back and forth movement of the rear guide rail and the left and right movement of the air inlet assembly on the rear guide rail.

Preferably, the rear side on gas cutting layer is opened and is equipped with the appearance groove that is the cross form, the rear guide rail all is in with the assembly that admits air and holds the groove, the end of second guide slot extends to and holds in the groove, and when cutting assembly arranged in the cross hold the groove, can not cause the influence to the work of preheating the subassembly, can not cause the influence to transmission assembly's removal simultaneously yet, makes things convenient for transmission assembly to shift the bottom on bimetal antifriction plate to cutting layer, and the cutting is convenient for cut the operation to the metal sheet.

Preferably, transmission assembly is two and controls the carrier that distributes, and two front and back sides that hold carrier have run through a lead screw respectively, and threaded connection between lead screw and the carrier holds, and the inside of shell body is provided with drive lead screw pivoted motor, through the rotation of lead screw, will hold carrier and remove to the top for bear the metal sheet, through the reversal of lead screw, utilize to hold carrier and shift the metal sheet to the cutting layer of below.

Preferably, the outside that holds carrier is provided with the arch of going up and down, and its inboard is provided with the loading board, is provided with two magnetic sheets on the loading board, and the laminating of the bottom of bellied top and heat insulating board, the side slot block that bellied bottom and gas cutting layer bottom were seted up is convenient for hold carrier and sink to the bottom, and the metal sheet that conveniently adsorbs on holding carrier breaks away from.

Preferably, the front end of top shroud is provided with rather than the heat shield who rotates the connection, the tie point of heat shield and top shroud is provided with torsion spring, the protruding department that holds the thing is in heat shield's side, the loading board is in heat shield's bottom, through ejector pad heat shield, fills in the metal sheet in the preheating layer, preheats the effect, and heat shield passes through torsion spring automatic re-setting, can avoid inside steam to spill from the exit.

Preferably, two recesses have been seted up to the centre department of gas cutting layer bottom, slidable mounting has the arm-tie on the gas cutting layer bottom, the bottom of arm-tie is provided with the fixture block of card income recess, the thickness of arm-tie is thicker than the loading board, and when bearing the weight of and sinking to the bottom, higher arm-tie can jack-up the metal sheet, makes things convenient for the metal sheet to break away from with bearing the weight of, utilizes subsequent cutting to handle.

Preferably, the tail end of the outer shell is provided with an outlet communicated with the gas cutting layer, the tail end of the pulling plate is located in the outlet, the pulling plate can be directly pulled out from the outlet after the metal plate finishes cutting operation on the pulling plate, then the cut metal plate is taken down, the pulling plate is reset, the device can recover operation again, and preheating and cutting processing are carried out.

Compared with the prior art, the invention has the beneficial effects that:

1. the arc striking carbon rod of the preheating assembly and the cutting nozzle of the cutting assembly are changed through the guide rail and along the guide rail in moving, so that the accuracy and stability of the preheating wire and the cutting wire can be kept, the cutting accuracy is kept, and the follow-up processing is more convenient;

2. the preheating assembly adopts an electric arc heating mode, so that compared with a mode of adopting a spray gun to remotely heat and preheat, the energy consumption is saved, the heating speed is higher, and the influence on the bimetal wear-resisting plate is lower;

3. preheat and all can produce extremely many heats with the cutting, but two steps all set up and go on with the shell body is inside at the overhead guard, can completely cut off the influence of the heat that produces man-hour to outside, and operating personnel can obtain better operational environment.

Drawings

FIG. 1 is a schematic diagram of the front appearance structure of the present invention;

FIG. 2 is a schematic view of the backside appearance structure of the present invention;

FIG. 3 is a schematic diagram of the inner sidewall structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention

FIG. 5 is a schematic view of the preheating assembly and the cutting assembly of the present invention;

FIG. 6 is a schematic view of the front and rear rail mounting position structure of the present invention;

FIG. 7 is a schematic view of the rear rail position structure of the present invention;

FIG. 8 is a schematic view of the basic principle of arc striking of a carbon rod according to the present invention;

FIG. 9 is a schematic diagram of the principle structure of a carbon-induced high-voltage arc according to the present invention.

In the figure: 1. an outer housing; 2. a top cover; 3. a heat insulation baffle; 4. a relay; 5. assembling a frame; 6. an H bridge; 7. a thermometer; 8. a thin film capacitor; 9. an outlet; 10. pulling a plate; 11. a preheating layer; 12. a front guide rail; 13. a first guide groove; 14. a second guide groove; 15. a carrier; 16. a magnetic sheet; 17. a rear guide rail; 18. a screw rod; 19. gas cutting layer; 20. a heat insulation plate; 21. a push rod; 22. a carbon rod; 23. a groove; 24. a side groove; 25. a wire; 26. a front guide wheel; 27. an air intake assembly; 28. cutting the opening; 29. a rear guide wheel; 30. a containing groove; 31. a reed switch.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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.

As shown in fig. 1 to 9, the present invention provides a workpiece cutting device based on preheating processing, which comprises: a workpiece cutting device based on preheating processing please refer to fig. 1 to 4, comprising an outer shell 1, wherein a top cover 2 is integrally formed at the top end of the outer shell 1, a heat insulation baffle 3 is arranged at the front end of the top cover 2, the heat insulation baffle 3 is rotatably connected with the top cover 2 through a torsion spring, a preheating layer 11 is arranged inside the top cover 2, a gas cutting layer 19 is arranged inside the outer shell 1, the preheating layer 11 and the gas cutting layer 19 are in a communicated state, an outlet 9 penetrating through the tail end of the outer shell 1 is arranged at the bottom end of the gas cutting layer 19, two side walls inside the preheating layer 11 are respectively provided with a heat insulation plate 20, a first guide groove 13 and a second guide groove 14 are arranged on the heat insulation plate 20, and the first guide groove 13 and the second guide groove 14 are vertically distributed; in addition, a preheating assembly, a transmission assembly and a cutting assembly are arranged in the preheating layer 11 and the gas cutting layer 19.

Example 1

Referring to fig. 2-5, 8 and 9, the preheating assembly includes a relay 4, a frame 5, a plurality of H-bridges 6, a thermometer 7 and a thin film capacitor 8, which are arranged on the top of the top cover 2, the relay 4 is provided with a switch, the relay 4, the thermometer 7 and the thin film capacitor 8 are connected with the H-bridges 6, a front guide rail 12 slides back and forth on the first guide groove 13, two ends of the front guide rail 12 are respectively provided with a front guide wheel 26 for controlling the back and forth movement of a push rod 21, the front guide rail 12 is provided with the push rod 21 in a left-right sliding manner, a lead 25 is arranged between the push rod 21 and the H-bridges 6 for connection, and a carbon rod 22 is slidably mounted inside the push rod 21; referring to fig. 8, in order to release the arc on the basis of the principle of the preheating assembly, when the switch is turned on, the high voltage of the voltage-boosting plate will preferentially charge the capacitor, when the capacitor is fully charged, the capacitor will discharge, and the current will flow into the primary induction coil wound on the carbon rod 22 and return to the other pole of the capacitor through the spark gap, during this process, the other coil on the carbon rod 22 will generate induced electromotive force, and the arc to be released, specifically the generated voltage volt, will be related to the voltage and turn ratio of the primary induction coil, and will also be related to the voltage volt of the voltage-boosting plate, although the voltage-boosting plate can use about 4000 volts, the temperature of the released arc will still be insufficient to preheat the metal material, and at this time, the arc generated can be boosted by connecting a low voltage and high current power supply to the other coil, referring to fig. 9, another high voltage capacitor is connected to the other coil, allowing high voltage to pass through, i.e. the thin film capacitor 8, and an inductor is connected in series to the other pole, at this time, the switch and the power supply can be turned on the carbon rod 22, enough to preheat the metal arc, and after the arc generated on the carbon rod 22, the arc moves on the front rail 12, the first guide rail, the contact point of the steel plate is changed, and the preheating contact point is controlled by the bimetal plate 13; in addition, it should be noted that, for the carbon rod part wound with the primary induction coil, the reed switch 31 is arranged inside, and when the carbon rod 22 is adjusted in height by the push rod 31 to perform arc striking, the reed switch 31 is used to sense whether the arc striking is successful or not, so as to ensure the stable proceeding of preheating;

example 2

Referring to fig. 3, 4 and 6, the transmission assembly communicates the preheating layer 11 and the gas cutting layer 19, and includes four lead screws 18 and a bearing member 15, the four lead screws 18 stand at four corners of the bottom end of the gas cutting layer 19, a bearing member 15 is installed between two lead screws 18 at two sides, a protrusion is respectively arranged at the upper side and the lower side of the side edge of the bearing member 15, the lead screws 18 penetrate through the protrusion and are in threaded connection with the bearing member, a motor for driving the lead screws 18 to rotate is arranged at the bottom end of the outer shell 1, it is noted that the top end of the lead screws 18 is arranged at the rear side of the heat insulation board 20, the protrusion at the top end of the bearing member 15 is in contact with the bottom end of the heat insulation board 20, a bearing board extending towards the center of the gas cutting layer 19 is arranged at the middle position of the bearing member 15, two magnetic sheets 16 are arranged at the front and the rear of the bearing board, two sides of the bottom end of the gas cutting layer 19 are respectively provided with a side groove 24, the protrusion at the bottom end of the bearing member 15 is clamped in the side groove 24, a pulling plate 10 is slidably mounted on the gas cutting layer 19, and the pulling plate 10 is arranged at the outlet 9; two bearing pieces 15 are positioned at two sides of the heat insulation baffle 3, the bearing plates are aligned with the openings at the heat insulation baffle 3, meanwhile, the bulges on the bearing pieces 15 cannot influence the rotary opening of the heat insulation baffle 3 because the bulges are positioned at the side edges of the heat insulation baffle 3, when the metal plate needs to be processed, the metal plate is pushed out of the preheating layer 11 from the heat insulation baffle 3, in the pushing process, the metal plate is positioned at the bottom side of the heat insulation baffle 3 and then moves to the bearing plates, after the metal plate completely enters the preheating layer 11, the heat insulation baffle 3 automatically resets through a torsion spring, the preheating layer 11 is closed, the metal plate is positioned on the two bearing plates and is adsorbed and fixed through magnetic sheets 16, at the moment, the preheating component in the embodiment 1 can electrically preheat the metal plate positioned on the bearing plates, after the preheating is completed, a motor drives a screw rod 18 to reversely rotate, the bearing pieces 15 and the metal plates on the bearing pieces 15 are driven to descend, when the bearing pieces 15 move to the side grooves 24, the pulling plate 10 can support the metal plate to separate the metal plate from the bearing pieces 15, and at the metal plate can be cut on the pulling plate 10;

example 3

Referring to fig. 5-7, the cutting assembly includes a rear guide rail 17 and an air intake assembly 27 moving left and right on the rear guide rail 17, the air intake assembly 27 includes a combustible gas inlet, a high pressure oxygen inlet, an ignition device and a control valve, a cutting opening 28 is provided at the bottom end of the air intake assembly 27, a rear guide wheel 29 is provided at each of the left and right ends of the rear guide rail 17 and is located in the second guide groove 14, the rear guide rail 17 moves back and forth along the second guide groove 14, a cross-shaped accommodating groove 30 is provided at the rear side of the gas cutting layer 19, both sides of the accommodating groove 30 are in contact with the second guide groove 14, the end of the second guide groove 14 extends into the accommodating groove 30, and both the rear guide rail 17 and the air intake assembly 27 can be completely located in the accommodating groove 30; the gas entering the combustible gas inlet can be acetylene propane and the like, the gas and the high-pressure oxygen inlet are communicated with an external gas source through a guide pipe, the ignition device adopts electric ignition, the specific structure of the gas inlet assembly 27 is the prior art, the detailed description is omitted, a servo motor for driving the rear guide wheel 29 to rotate is arranged in the rear guide rail 17, the rear guide wheel 29 drives the rear guide rail 17 to move back and forth along the second guide groove 14, when the bearing piece 15 transfers the metal plate to the bottom end of the gas cutting layer 19, the rear guide wheel 29 drives the rear guide rail 17 and the gas inlet assembly 27 on the rear guide rail 17 to be separated from the groove 30, when the gas inlet assembly 27 moves to a preset position, the valve and the ignition device are opened, cutting flames are sprayed out of the cutting port 28, the metal plate is cut, after the metal plate is cut, the rear guide rail 17 and the gas inlet assembly 27 are reset, the pull plate 10 is pulled to pull out the cut metal plate from the outlet 9, meanwhile, the motor drives the screw rod 18 to rotate, and the bearing piece 15 is reset, and the next metal plate cutting operation can be carried out.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientations and positional relationships shown in the drawings only for the convenience of describing the present invention and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Claims

1. The utility model provides a work piece cutting device based on preheat processing, includes shell body (1) and overhead guard (2), its characterized in that: gas cutting layer (19) and preheating layer (11) have been seted up in shell body (1) and overhead guard (2) respectively, gas cutting layer (19) and preheating layer (11) are in the intercommunication state, be provided with in preheating layer (11) and preheat the subassembly, be provided with cutting assembly in gas cutting layer (19), be provided with the transmission assembly who connects preheating assembly and cutting assembly in shell body (1), the inside both sides wall of preheating layer (11) is provided with one heat insulating board (20) respectively, has laid first guide slot (13) and second guide slot (14) from top to bottom on heat insulating board (20), preheats subassembly major structure along first guide slot (13) back-and-forth movement, and cutting assembly follows second guide slot (14) back-and-forth movement.

2. The workpiece cutting device based on the preheating processing as set forth in claim 1, wherein: the preheating assembly is characterized in that the preheating assembly body is a front guide rail (12), two ends of the preheating assembly body are respectively provided with a front guide wheel (26) which moves back and forth along a first guide groove (13), a push rod (21) moves left and right on the front guide rail (12), and a carbon rod (22) which moves up and down is arranged in the push rod (21).

3. The workpiece cutting device based on the preheating processing as set forth in claim 1, wherein: the top of overhead guard (2) is provided with group frame (5), and the intermediate position department of group frame (5) is provided with a plurality of H bridges (6), and the front portion of group frame (5) is provided with relay (4), be connected through wire (25) between carbon-point (22) and H bridge (6) and relay (4) and H bridge (6).

4. The preheating-processing-based workpiece cutting device according to claim 1, wherein: the cutting component main body is a rear guide rail (17), two ends of the cutting component main body are respectively provided with a rear guide wheel (29) which moves back and forth along a second guide groove (14), an air inlet assembly (27) which moves left and right is arranged on the rear guide rail (17), a combustible gas inlet, a high-pressure oxygen inlet, an ignition device and a control valve are integrated in the air inlet assembly (27), and a cutting opening (28) is formed in the bottom end of the air inlet assembly (27).

5. The preheating-processing-based workpiece cutting device according to claim 1, wherein: the rear side of the gas cutting layer (19) is provided with a cross-shaped containing groove (30), the rear guide rail (17) and the air inlet assembly (27) are both positioned in the containing groove (30), and the tail end of the second guide groove (14) extends into the containing groove (30).

6. The preheating-processing-based workpiece cutting device according to claim 1, wherein: the transmission assembly is two bearing parts (15) which are distributed left and right, a lead screw (18) penetrates through the front side and the rear side of the two bearing parts (15) respectively, the lead screw (18) is in threaded connection with the bearing parts (15), and a motor for driving the lead screw (18) to rotate is arranged inside the shell (1).

7. The workpiece cutting device based on the preheating processing as set forth in claim 5, wherein: the outside that holds carrier (15) is provided with to upper and lower arch, and its inboard is provided with the loading board, is provided with two magnetic sheets (16) on the loading board, and the laminating of the bottom of bellied top and heat insulating board (20), side groove (24) block that bellied bottom and gas cutting layer (19) bottom were seted up.

8. The preheating-processing-based workpiece cutting device according to claim 1, wherein: the front end of top casing (2) is provided with rather than rotating thermal baffle (3) of being connected, the tie point of thermal baffle (3) and top casing (2) is provided with torque spring, the protruding department that holds carrier (15) is in the side of thermal baffle (3), the loading board is in the bottom of thermal baffle (3).

9. The preheating-processing-based workpiece cutting device according to claim 1, wherein: two recesses (23) have been seted up to the centre department of gas cutting layer (19) bottom, slidable mounting has arm-tie (10) on gas cutting layer (19) bottom, the bottom of arm-tie (10) is provided with the fixture block of card income recess (23), the thickness of arm-tie (10) is compared in the loading board thickly.

10. The preheating-processing-based workpiece cutting device according to claim 1, wherein: the tail end of the outer shell (1) is provided with an outlet (9) communicated with the gas cutting layer (19), and the tail end of the pulling plate (10) is positioned in the outlet (9).