CN115094213A - Numerical control quenching machine tool and quenching process for large-sized workpiece - Google Patents
Numerical control quenching machine tool and quenching process for large-sized workpiece Download PDFInfo
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- CN115094213A CN115094213A CN202210856111.7A CN202210856111A CN115094213A CN 115094213 A CN115094213 A CN 115094213A CN 202210856111 A CN202210856111 A CN 202210856111A CN 115094213 A CN115094213 A CN 115094213A
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- 238000010791 quenching Methods 0.000 title claims abstract description 143
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- 238000000034 method Methods 0.000 title claims abstract description 23
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- 230000006698 induction Effects 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
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- 238000002955 isolation Methods 0.000 claims description 27
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- 230000033001 locomotion Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
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- 230000007774 longterm Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
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- 230000008054 signal transmission Effects 0.000 claims description 3
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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Abstract
The invention provides a numerical control quenching machine tool and a quenching process for large-sized workpieces, belongs to the technical field of metal or alloy heat treatment equipment, and mainly aims to solve the problems that in the prior art, when the large-sized workpieces are quenched, the vertical distance between an induction head and the workpieces needs to be continuously adjusted, the adjustment has obvious hysteresis and lower precision, errors and accessory parts exist on the surfaces of the large-sized workpieces such as guide rails in the processing process, excessive heating or insufficient heating can be caused in the quenching process, and the like. The invention is provided with the acquisition mechanism and the information processing system aiming at the relevant characteristics of the quenching surface of the workpiece, converts the surface characteristics of the workpiece to be quenched into the visual running track, realizes the automation and the real-time control of the distance between the quenching head and the workpiece, accurately and reasonably adjusts the vertical distance between the quenching head and the workpiece, ensures the uniform quenching of the workpiece and ensures the quality of the quenched product.
Description
Technical Field
The invention relates to the technical field of heat treatment equipment for metal or alloy, in particular to a numerical control quenching machine tool for large-sized workpieces and a quenching process.
Background
The linear guide rail is an important functional component on a machine tool and is used for positioning and guiding the movement of the machine tool. The contact surface of the guide rail surface and the rolling part is subjected to larger pressure in the use process, so that the contact surface is required to have higher hardness; in addition, the core of the linear guide rail is required to have better toughness, and the guide rail is a high-precision product and has high heavy-load capacity, and the installation parallelism and flatness precision of the guide rail must reach more than 0.1 mm. In order to ensure that the linear guide rail has better comprehensive mechanical property and installation precision, the induction quenching mode is the most ideal heat treatment method.
However, the existing induction quenching of the rolling linear guide rail has the problems of large residual stress, large quenching distortion, poor precision retentivity and the like, and has become the bottleneck of the development of a numerical control machine tool. Mainly embodied in the working process of the existing quenching device, the induction quenching head is suspended above a workpiece through a bracket and keeps a certain distance, in order to prevent the quenching head from sagging due to gravity or environmental change in the moving process of the induction quenching head, the prior art mostly considers the improvement of the strength of the bracket or a supporting part of the quenching head, and the change of the distance between the workpiece and the quenching head caused by sagging and bending is prevented to the maximum extent; in the other technical scheme, a height regulator for regulating the distance is arranged between the quenching head and the supporting component, and the distance is regulated according to the motion condition or the material deformation condition, so that the whole quenching induction head is kept parallel to the quenching workpiece, and the quenching hardness is ensured to be more uniform.
However, in the above scheme, the vertical distance between the horizontal support rod and the cantilever needs to be adjusted by continuously rotating the bolt, so that the cantilever and the surface of the workpiece can be kept horizontal, the adjustment has obvious hysteresis, the adjustment precision is low, and the requirement of modern production cannot be met completely.
In addition, since the surface of the guide rail is inevitably subjected to machining errors during machining, or attachment parts such as attachment holes and attachment platforms must be considered during quenching, and problems such as ablation due to excessive heating and insufficient surface hardness due to insufficient heating may be caused.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a numerical control quenching machine tool and a quenching process for large-sized workpieces, wherein the quenching machine tool realizes automatic real-time control and adjustment aiming at the distance control between a quenching head and the workpieces, accurately and reasonably adjusts the vertical distance between the quenching head and the workpieces, so that the distance between the quenching head and the workpieces is kept constant, the workpieces are uniformly quenched, and the quality of quenched products is ensured.
The invention adopts the following technical scheme: a numerical control quenching machine tool for large-scale workpieces integrally adopts a floor type structure and is characterized by comprising a workpiece characteristic pre-acquisition system to be processed, a quenching and walking mechanism and a quenching liquid circulating system;
the quenching and walking mechanism comprises a base fixed on the bottom surface and X-direction guide rails erected on the base, the X-direction guide rails are divided into a left group and a right group, each group of X-direction guide rails respectively comprises two sliding blocks and corresponding sliding block fixing frames, the cross sections of the sliding block fixing frames are concave, and the sliding blocks are fixed on the concave parts of the tops of the sliding block fixing frames; each group of X-direction guide rails is provided with a movable bracket, and the two movable brackets are arranged oppositely; and a slide block linear rail is fixed at the contact part of the bottom of any one movable support and the corresponding slide block, a groove is formed in the lower surface of the slide block linear rail and is matched and movably connected with the slide block, and the slide block linear rail can be clamped on the slide block to reciprocate along the X direction.
The movable support is of a square cage-shaped structure, a square isolation plate is arranged at the lower middle position in the movable support, rectangular notches are formed in four right angles of the isolation plate, anti-falling slide rail seats are arranged at the notches, and the notches are matched with slide rails fixed on the inner side surfaces of four stand columns of the movable support to realize Z-direction movement of the isolation plate; an anti-induction support is installed above the isolation plate, an X-direction servo motor is vertically and fixedly installed below the isolation plate, a transmission gear is installed at the output end of the X-direction servo motor and is meshed with an X-direction rack fixed on the inner side face of the sliding block fixing frame, the X-direction servo motor rotates and walks on the X-direction rack to drive a movable support fixed with the X-direction servo motor to move on an X-direction guide rail.
In addition, a Z-direction moving rack is installed on the front face of an upright column at the front end of the movable support, an extension plate tightly attached to the side wall of the upright column is fixedly connected with the isolation plate at the lowest end of the upright column, the length of the extension plate exceeds the front face of the upright column, a Z-direction servo motor is installed at the exceeding part along the Y direction, a transmission gear is installed at the output end of the Z-direction servo motor and meshed with the Z-direction moving rack installed on the front face of the upright column, the Z-direction servo motor rotates to walk on the Z-direction moving rack to drive the isolation plate and the induction-proof support to move in the Z direction.
A Y-direction servo motor is arranged between the isolation plate and the induction-proof support, and a Y-direction servo motor base is fixed on the isolation plate and is connected with the induction-proof support above through a transmission mechanism to drive the induction-proof support and parts mounted on the induction-proof support to move along the Y direction; a transformer is fixedly installed above the anti-induction support, a cross beam plate is connected to the inner vertical surface of the transformer, a plurality of pull rods are arranged on the cross beam plate, the lower ends of the pull rods are connected with induction quenching heads, the induction quenching heads are connected with the transformer through wires, adjustable structures are arranged among the cross beam plate, the pull rods and the induction quenching heads, all the pull rods are adjusted simultaneously or one pull rod is adjusted independently, the distance between all the induction quenching heads or a single induction quenching head and the surface of a workpiece to be processed can be changed, and the adjustment of heating power is realized; two crossbeam boards and the response quenching head that corresponds on two relative movable support that set up can completely cover the workpiece surface of treating in Y upwards.
The quenching liquid circulating system is arranged independently, and a quenching liquid guide pipe connected with the quenching liquid circulating system is connected to the partition plate along the top of the movable support and is aligned to the rear end position of the induction quenching head through the spray head.
The workpiece feature pre-acquisition system to be processed comprises a feature acquisition bracket which is arranged on the induction-proof bracket and is positioned in front of the induction quenching head, wherein the installation height of the feature acquisition bracket is completely the same as the initial height of the induction quenching head, and the height of the feature acquisition bracket is kept constant; a plurality of laser ranging sensors which face the working surface of the workpiece to be processed and image acquisition sensors which are arranged at intervals and have the same orientation with the laser ranging sensors are arranged below the characteristic acquisition bracket; and the signal and image processor is also arranged and is connected with the Z-direction servo motor through a signal wire.
Preferably, a reciprocating lead screw is arranged on the cross beam plate, a moving block of the lead screw is connected with the induction quenching head at the foremost end below the cross beam plate through a flexible rope, and a power head of the lead screw is connected with a stiffness detection sensor arranged at the tail end of the induction quenching head through a signal transmission lead wire.
The invention also provides a quenching process adopting the quenching machine tool, which is characterized by comprising the following steps:
firstly, fixing a workpiece to be processed on an X-direction guide rail of a quenching machine tool base, and cleaning the surface of the workpiece;
starting an X-direction servo motor and a workpiece feature pre-acquisition system to be processed, and performing a workpiece surface feature acquisition process; the laser ranging sensor acquires the distance between the surface of the workpiece and the sensor, namely the flatness of the surface of the workpiece; meanwhile, the image acquisition sensor acquires coordinate point information corresponding to the flatness information;
the laser distance measuring sensor and the image collector transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and synthesize a motion trail diagram completely matched with the surface condition of the workpiece to be processed;
fourthly, converting the motion trail graph into a signal which can be identified and read by the servo motor and transmitting the signal to the Z-direction servo motor;
starting the X-direction servo motor and the induction quenching head; the X-direction servo motor drives the movable support to move upwards at a preset speed, and simultaneously the Z-direction servo motor drives the anti-induction support to drive the induction quenching head to move in the Z direction along a sliding rail on the inner side surface of the upright post of the movable support according to the synthesized motion track, so that the distance between the induction quenching head and the surface of the workpiece to be processed is kept constant in real time;
and sixthly, converting the current by a transformer, carrying out induction heating on the specific depth of the surface of the workpiece to be treated by the induction quenching head to quickly raise the temperature to the quenching temperature, spraying quenching liquid to the heating part through a spray head, and cooling the workpiece.
Preferably, in the quenching process, the cross beam plate for supporting the induction quenching head and the induction quenching head are heated, deformed and sagged after long-term operation, at the moment, the stiffness detection sensor sends out a signal and transmits the signal to the power head of the reciprocating screw rod through a lead wire, and the power head drives the moving block of the screw rod to stretch the sagged end part of the induction quenching head upwards and keep balance.
Has the advantages that: the invention aims at the problems that the vertical distance between the induction head and the workpiece needs to be continuously adjusted when the large workpiece is quenched in the prior art, the adjustment has obvious hysteresis and lower precision, and the surface of a large-sized workpiece such as a guide rail and the like has errors and accessory parts in the processing process, so that the problems of overheating or insufficient heating and the like can be caused in the quenching process; in addition, the quenching machine tool is simple in structure and reasonable in design, and is specially provided with a stiffness detection sensor and an adjusting screw rod to control the sagging and bending of the beam plate and the induction quenching head, so that the constant distance between the quenching head and a workpiece is kept, and the quenching uniformity is ensured.
Drawings
Fig. 1 is a front view of the quenching machine tool.
Fig. 2 is a right side view of the quench machining tool.
Fig. 3 is a plan view of the quenching machine tool.
Fig. 4 is a perspective view of the quenching machine tool.
Fig. 5 is a partially enlarged view of fig. 2.
Fig. 6 is a simplified plan view of the quench machining tool.
Fig. 7 is a simplified right side view of the quench machining tool.
In the figure, a base 1, an X-direction guide rail 2, a slide block 201, a slide block fixing frame 202, a slide block linear rail 203, a movable support 3, a partition plate 301, a vertical column 302, an induction-proof support 303, an X-direction servo motor 304, an X-direction rack 305, a Z-direction moving rack 306, a Z-direction servo motor 307, a Y-direction servo motor 308, a transformer 4, a beam plate 5, a pull rod 6, an induction quenching head 7, a spray head 8, a characteristic acquisition support 9 and a reciprocating screw rod 10.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1-3, the present embodiment provides a numerically controlled quenching machine tool for large workpieces, which is used for quenching the surface of a workbench of the numerically controlled machine tool, and the machine tool is integrally fixed on the ground, and includes a workpiece feature pre-acquisition system to be processed, a quenching and traveling mechanism, and a quenching liquid circulation system; the quenching and walking mechanism comprises a base 1 fixed on the bottom surface and X-direction guide rails 2 erected on the base 1, the X-direction guide rails 2 are divided into a left group and a right group, each group of X-direction guide rails 2 respectively comprises two sliding blocks 201 and corresponding sliding block fixing frames 202, and the sliding blocks 201 are fixed at the concave parts of the tops of the sliding block fixing frames 202; each group of X-direction guide rails 2 is provided with a movable bracket 3, and the two movable brackets 3 are oppositely arranged; a slide block linear rail 203 is fixed at the contact part of the bottom of any one movable support 3 and the corresponding slide block 201, a groove is formed on the lower surface of the slide block linear rail 203 and is matched and movably connected with the slide block 201, and the slide block linear rail 203 can be clamped on the slide block 201 to reciprocate along the X direction; the movable support 3 is of a square cage-shaped structure, a square isolation plate 301 is arranged at the lower middle position in the movable support, rectangular notches are formed in four right angles of the isolation plate 301, anti-falling slide rail seats are arranged at the notches, and the rectangular notches are matched with slide rails fixed on the inner side surfaces of four upright posts 302 of the movable support 3 to realize Z-direction movement of the isolation plate 301; an induction-proof support 303 is arranged above the isolation plate 301, an X-direction servo motor 304 is vertically and fixedly arranged below the isolation plate 301, a transmission gear is arranged at the output end of the X-direction servo motor 304 and is meshed with an X-direction rack 305 fixed on the inner side surface of the sliding block fixing frame 202, the X-direction servo motor 304 rotates and walks on the X-direction rack 305 to drive a movable support 3 fixed with the X-direction servo motor 304 to move on an X-direction guide rail 2; in addition, a Z-direction moving rack 306 is installed on the front surface of the upright post 302 at the front end of the movable support 3, an extension plate tightly attached to the side wall of the upright post 302 is fixedly connected with the isolation plate 301 at the lowest end of the upright post 302, the length of the extension plate exceeds the front surface of the upright post 302, a Z-direction servo motor 307 is installed at the exceeding part along the Y direction, a transmission gear is installed at the output end of the Z-direction servo motor 307 and meshed with the Z-direction moving rack 306 installed on the front surface of the upright post 302, the Z-direction servo motor 307 rotates and walks on the Z-direction moving rack 306 to drive the isolation plate 301 and the induction-proof support 303 to move in the Z direction.
A Y-direction servo motor 308 is arranged between the isolation plate 301 and the induction-proof support 303, the Y-direction servo motor 308 is fixed on the isolation plate 301 and is connected with the induction-proof support 303 above through a transmission mechanism to drive the induction-proof support 303 and components mounted on the induction-proof support 303 to move along the Y direction; a transformer 4 is fixedly installed above the anti-induction support 303, a cross beam plate 5 is connected to the inner vertical surface of the transformer 4, a plurality of pull rods 6 are arranged on the cross beam plate 5, the lower ends of the pull rods 6 are connected with induction quenching heads 7, the induction quenching heads 7 are connected with the transformer 4 through wires, adjustable structures are arranged between the cross beam plate 5 and the pull rods 6 and the induction quenching heads 7, all the pull rods 6 are adjusted simultaneously or one pull rod 6 is adjusted independently, the distance between all the induction quenching heads 7 or a single induction quenching head 7 and the surface of a workpiece to be processed can be changed, and the adjustment of heating power is realized; the two cross beam plates 5 on the two oppositely arranged movable supports 3 and the corresponding induction quenching heads 7 can completely cover the surface of a workpiece to be processed in the Y direction; the quenching liquid circulation system is separately provided, and a quenching liquid guide pipe connected with the quenching liquid circulation system is connected to the partition plate 301 along the top of the movable bracket 3 and is aligned with the rear end position of the induction quenching head 7 through the spray head 8.
The workpiece feature pre-acquisition system to be processed comprises a feature acquisition bracket 9 which is arranged on the induction-proof bracket 303 and is positioned in front of the induction quenching head 7, wherein the installation height of the feature acquisition bracket 9 is completely the same as the initial height of the induction quenching head 7, and the height of the feature acquisition bracket is kept constant; a plurality of laser ranging sensors which face the working surface of the workpiece to be processed and image acquisition sensors which are arranged at intervals and have the same orientation with the laser ranging sensors are arranged below the characteristic acquisition bracket 9; a signal and image processor is also provided and connected to the Z-servo motor 307 via signal conductors.
Considering that the temperature of the cross beam plate 5 and the pull rod 6 can be deformed to a certain degree after long-term operation, the end part of the cross beam plate 5 is obviously sagged, the distance between the induction quenching head 7 and a workpiece is influenced, the cross beam plate 5 is provided with a reciprocating lead screw 10, a moving block of the lead screw is connected with the induction quenching head 7 at the foremost end below the cross beam plate 5 through a flexible rope, and a power head of the lead screw is connected with a stiffness detection sensor arranged at the tail end of the induction quenching head 7 through a signal transmission lead wire.
The embodiment also provides a quenching process adopting the quenching machine tool, which comprises the following steps:
fixing a workpiece to be processed on an X-direction guide rail 2 of a quenching machine tool base 1, and cleaning the surface of the workpiece; starting the X-direction servo motor 304 and the workpiece feature pre-acquisition system to be processed, and performing a workpiece surface feature acquisition process; the laser ranging sensor acquires the distance between the surface of the workpiece and the sensor, namely the flatness of the surface of the workpiece; meanwhile, the image acquisition sensor acquires coordinate point information corresponding to the flatness information; the laser distance measuring sensor and the image collector transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and a motion trail diagram completely matched with the surface condition of a workpiece to be processed is synthesized; converting the motion trail graph into a signal which can be identified and read by the servo motor and transmitting the signal to the Z-direction servo motor 307; starting the X-direction servo motor 304 and the induction quenching head 7; the X-direction servo motor 304 drives the movable support 3 to move upwards in the X direction according to a preset speed, and simultaneously the Z-direction servo motor 307 drives the induction-proof support 303 to drive the induction quenching head 7 to move in the Z direction along a sliding rail on the inner side surface of the upright post 302 of the movable support 3 according to a synthesized motion track, so that the distance between the induction quenching head 7 and the surface of the workpiece to be processed is kept constant in real time; the transformer 4 converts the current, the induction quenching head 7 carries out induction heating on the specific depth of the surface of the workpiece to be processed, the workpiece is rapidly heated to the quenching temperature, and the quenching liquid is sprayed to the heating part through the spray head 8 to cool the workpiece.
In the quenching process, the cross beam plate 5 which supports the induction quenching head 7 and the induction quenching head 7 are heated and deformed to droop after long-term operation, at the moment, the stiffness detection sensor sends out a signal and transmits the signal to the power head of the reciprocating screw rod 10 through a lead, and the power head drives the moving block of the screw rod to upwards stretch and keep balance the drooping end part of the induction quenching head 7.
Claims (4)
1. A numerical control quenching machine tool for large-scale workpieces integrally adopts a floor type structure and is characterized by comprising a workpiece characteristic pre-acquisition system to be processed, a quenching and walking mechanism and a quenching liquid circulating system;
the quenching and walking mechanism comprises a base fixed on the bottom surface and X-direction guide rails erected on the base, the X-direction guide rails are divided into a left group and a right group, each group of X-direction guide rails respectively comprises two sliding blocks and corresponding sliding block fixing frames, the cross sections of the sliding block fixing frames are concave, and the sliding blocks are fixed on the concave parts of the tops of the sliding block fixing frames; each group of X-direction guide rails is provided with a movable bracket, and the two movable brackets are arranged oppositely; a slide block linear rail is fixed at the contact part of the bottom of any one movable support and the corresponding slide block, a groove is formed in the lower surface of the slide block linear rail and is matched and movably connected with the slide block, and the slide block linear rail can be clamped on the slide block to reciprocate along the X direction;
the movable support is of a square cage-shaped structure, a square isolation plate is arranged at the lower middle position in the movable support, rectangular notches are formed in four right angles of the isolation plate, anti-slipping rail seats are arranged at the notches, and the anti-slipping rail seats are matched with sliding rails fixed on the inner side surfaces of four upright posts of the movable support to realize Z-direction movement of the isolation plate; an anti-induction support is arranged above the isolation plate, an X-direction servo motor is vertically and fixedly arranged below the isolation plate, a transmission gear is arranged at the output end of the X-direction servo motor and is meshed with an X-direction rack fixed on the inner side surface of the sliding block fixing frame, the X-direction servo motor rotates and walks on the X-direction rack to drive a movable support fixed with the X-direction servo motor to move on an X-direction guide rail;
in addition, a Z-direction moving rack is installed on the front face of an upright column at the front end of the movable support, an extension plate attached to the side wall of the upright column is arranged at the lowest end of the upright column and fixedly connected with the isolation plate, the length of the extension plate exceeds the front face of the upright column, a Z-direction servo motor is installed at the exceeding part along the Y direction, a transmission gear is installed at the output end of the Z-direction servo motor and meshed with the Z-direction moving rack installed on the front face of the upright column, the Z-direction servo motor rotates and walks on the Z-direction moving rack to drive the movable support fixed with the X-direction motor to move on an X-direction guide rail;
a Y-direction servo motor is arranged between the isolation plate and the induction-proof support, and a Y-direction servo motor base is fixed on the isolation plate and is connected with the induction-proof support above through a transmission mechanism to drive the induction-proof support and parts mounted on the induction-proof support to move along the Y direction; a transformer is fixedly installed above the anti-induction support, a cross beam plate is connected to the inner vertical surface of the transformer, a plurality of pull rods are arranged on the cross beam plate, the lower ends of the pull rods are connected with induction quenching heads, the induction quenching heads are connected with the transformer through wires, adjustable structures are arranged among the cross beam plate, the pull rods and the induction quenching heads, all the pull rods are adjusted simultaneously or one pull rod is adjusted independently, the distance between all the induction quenching heads or a single induction quenching head and the surface of a workpiece to be processed can be changed, and the adjustment of heating power is realized; the two cross beam plates on the two oppositely arranged movable supports and the corresponding induction quenching heads can completely cover the surface of a workpiece to be processed in the Y direction;
the quenching liquid circulating system is arranged independently, a quenching liquid guide pipe connected with the quenching liquid circulating system is connected to the isolation plate along the top of the movable support, and the quenching liquid guide pipe is aligned to the rear end position of the induction quenching head through the spray head;
the workpiece feature pre-acquisition system to be processed comprises a feature acquisition bracket which is arranged on the induction-proof bracket and is positioned in front of the induction quenching head, wherein the installation height of the feature acquisition bracket is completely the same as the initial height of the induction quenching head, and the height of the feature acquisition bracket is kept constant; a plurality of laser ranging sensors facing the working surface of the workpiece to be processed and image acquisition sensors which are arranged at intervals and have the same orientation with the laser ranging sensors are arranged below the characteristic acquisition bracket; and the signal and image processor is also arranged and is connected with the Z-direction servo motor through a signal wire.
2. The numerical control quenching machine tool for the large-sized workpieces as recited in claim 1, wherein a reciprocating lead screw is provided on the beam plate, a moving block of the lead screw is connected with the induction quenching head at the foremost end below the beam plate through a flexible rope, and a power head of the lead screw is connected with a stiffness detection sensor mounted at the tail end of the induction quenching head through a signal transmission lead wire.
3. A quenching process of a numerical control quenching machine tool for large workpieces according to claim 1 or 2, which is characterized by comprising the following steps:
firstly, fixing a workpiece to be processed on an X-direction guide rail of a quenching machine tool base, and cleaning the surface of the workpiece;
starting an X-direction servo motor and a workpiece feature pre-acquisition system to be processed, and performing a workpiece surface feature acquisition process; the laser ranging sensor acquires the distance between the surface of the workpiece and the sensor, namely the flatness of the surface of the workpiece; meanwhile, the image acquisition sensor acquires coordinate point information corresponding to the flatness information;
the laser distance measuring sensor and the image collector transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and synthesize a motion trail diagram completely matched with the surface condition of the workpiece to be processed;
converting the motion trail graph into a signal which can be identified and read by the servo motor and transmitting the signal to the Z-direction servo motor;
starting the X-direction servo motor and the induction quenching head; the X-direction servo motor drives the movable support to move upwards at a preset speed, and simultaneously the Z-direction servo motor drives the anti-induction support to drive the induction quenching head to move in the Z direction along a sliding rail on the inner side surface of the upright post of the movable support according to the synthesized motion track, so that the distance between the induction quenching head and the surface of the workpiece to be processed is kept constant in real time;
and sixthly, converting the current by a transformer, carrying out induction heating on the surface of the workpiece to be treated by the induction quenching head at a specific depth to quickly raise the surface to the quenching temperature, spraying the quenching liquid to the heating part through a spray head, and cooling the workpiece.
4. The quenching process as claimed in claim 3, wherein during the quenching process, the cross beam plate supporting the induction quenching head and the induction quenching head are deformed and sagged due to temperature rise after long-term operation, and the stiffness detection sensor sends a signal which is transmitted to the power head of the reciprocating screw rod through a lead wire, and the power head drives the moving block of the screw rod to stretch the sagged end part of the induction quenching head upwards and keep balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210856111.7A CN115094213B (en) | 2022-07-21 | 2022-07-21 | Numerical control quenching machine tool and quenching process for large-sized workpiece |
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Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05230522A (en) * | 1992-02-25 | 1993-09-07 | Yamazaki Mazak Corp | Fully automatic high-frequency hardening device |
| CN1247232A (en) * | 1999-04-22 | 2000-03-15 | 东方汽轮机厂 | Plasma quenching system and method for metal blades |
| JP2000080412A (en) * | 1998-09-01 | 2000-03-21 | Mori Seiki Co Ltd | Induction hardening equipment |
| CN101597671A (en) * | 2009-06-26 | 2009-12-09 | 武汉宝德机电有限责任公司 | Digital control " one drag two " automatic quenching method of roll double frequency and system |
| US20120186320A1 (en) * | 2011-01-21 | 2012-07-26 | Moshe Israel Meidar | Method and machine tool for the processing and hardening of metallic workpieces |
| CN202440532U (en) * | 2011-12-31 | 2012-09-19 | 尚儒鸿 | Novel horizontal numerical control quenching machine tool |
| CN103667661A (en) * | 2013-11-29 | 2014-03-26 | 第一拖拉机股份有限公司 | Inductive heat treatment method of low-speed large-torque drive axle |
| CN104073607A (en) * | 2014-07-25 | 2014-10-01 | 洛阳圣久锻件有限公司 | Quenching cooling system and quenching cooling method |
| CN204039436U (en) * | 2014-09-15 | 2014-12-24 | 易门云铸工贸有限公司 | The large-scale workpiece surface fast quenching appts of numerically-controlled machine |
| CN104673979A (en) * | 2015-02-12 | 2015-06-03 | 江苏天宝利自动化科技有限公司 | Large die high-frequency quenching machine |
| CN106500509A (en) * | 2016-11-28 | 2017-03-15 | 上海航天精密机械研究所 | A kind of workpiece for chamber type electric resistance furnace quenches truss mechanical hand automatically |
| CN108165712A (en) * | 2018-02-09 | 2018-06-15 | 恒进感应科技（十堰）股份有限公司 | A kind of equipment quenched for engineering machinery guide wheel, driving wheel |
| CN108467920A (en) * | 2018-06-27 | 2018-08-31 | 台州市索立机械有限公司 | A kind of horizontal quenching press |
| CN108517391A (en) * | 2018-07-06 | 2018-09-11 | 南京工艺装备制造有限公司 | A kind of small deformation quenching technical of the linear guide |
| CN108728627A (en) * | 2018-05-30 | 2018-11-02 | 沈阳海克机床有限公司 | A kind of steel guide rail salt bath furnace integral quenching cold and hot working technique of 9Mn2CrV materials |
| CN208121134U (en) * | 2018-03-12 | 2018-11-20 | 深圳市金旺达机电有限公司 | It is a kind of to incude tempering machine tool lathe bed of quenching |
| CN209322931U (en) * | 2018-10-16 | 2019-08-30 | 中煤张家口煤矿机械有限责任公司 | It is a kind of for scraping the auto-feeder of plate end face impewdance matching |
| CN110699537A (en) * | 2019-11-07 | 2020-01-17 | 云南太标数控机床有限公司 | Quenching tool capable of adjusting height and quenching processing technology thereof |
| CN209957836U (en) * | 2019-02-18 | 2020-01-17 | 大族激光科技产业集团股份有限公司 | Machine tool for laser quenching of die |
| CN111366076A (en) * | 2020-03-26 | 2020-07-03 | 武汉大学 | Optical fiber rod machine tool centering device and method based on circular arc quadrant classification circle detection |
| CN112941293A (en) * | 2021-03-11 | 2021-06-11 | 郑州科创电子有限公司 | Automatic production system for caterpillar track section |
| CN113699356A (en) * | 2021-09-02 | 2021-11-26 | 恒进感应科技（十堰）股份有限公司 | Gear ring whole tooth induction hardening machine tool |
| CN114571063A (en) * | 2022-04-11 | 2022-06-03 | 武汉大族金石凯激光系统有限公司 | Side vertical type synchronous double-drive laser processing machine tool |
| CN216919323U (en) * | 2021-12-06 | 2022-07-08 | 云南台圆精密机械有限公司 | Surface hardening device for large casting of machine tool |
-
2022
- 2022-07-21 CN CN202210856111.7A patent/CN115094213B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05230522A (en) * | 1992-02-25 | 1993-09-07 | Yamazaki Mazak Corp | Fully automatic high-frequency hardening device |
| JP2000080412A (en) * | 1998-09-01 | 2000-03-21 | Mori Seiki Co Ltd | Induction hardening equipment |
| CN1247232A (en) * | 1999-04-22 | 2000-03-15 | 东方汽轮机厂 | Plasma quenching system and method for metal blades |
| CN101597671A (en) * | 2009-06-26 | 2009-12-09 | 武汉宝德机电有限责任公司 | Digital control " one drag two " automatic quenching method of roll double frequency and system |
| US20120186320A1 (en) * | 2011-01-21 | 2012-07-26 | Moshe Israel Meidar | Method and machine tool for the processing and hardening of metallic workpieces |
| CN202440532U (en) * | 2011-12-31 | 2012-09-19 | 尚儒鸿 | Novel horizontal numerical control quenching machine tool |
| CN103667661A (en) * | 2013-11-29 | 2014-03-26 | 第一拖拉机股份有限公司 | Inductive heat treatment method of low-speed large-torque drive axle |
| CN104073607A (en) * | 2014-07-25 | 2014-10-01 | 洛阳圣久锻件有限公司 | Quenching cooling system and quenching cooling method |
| CN204039436U (en) * | 2014-09-15 | 2014-12-24 | 易门云铸工贸有限公司 | The large-scale workpiece surface fast quenching appts of numerically-controlled machine |
| CN104673979A (en) * | 2015-02-12 | 2015-06-03 | 江苏天宝利自动化科技有限公司 | Large die high-frequency quenching machine |
| CN106500509A (en) * | 2016-11-28 | 2017-03-15 | 上海航天精密机械研究所 | A kind of workpiece for chamber type electric resistance furnace quenches truss mechanical hand automatically |
| CN108165712A (en) * | 2018-02-09 | 2018-06-15 | 恒进感应科技（十堰）股份有限公司 | A kind of equipment quenched for engineering machinery guide wheel, driving wheel |
| CN208121134U (en) * | 2018-03-12 | 2018-11-20 | 深圳市金旺达机电有限公司 | It is a kind of to incude tempering machine tool lathe bed of quenching |
| CN108728627A (en) * | 2018-05-30 | 2018-11-02 | 沈阳海克机床有限公司 | A kind of steel guide rail salt bath furnace integral quenching cold and hot working technique of 9Mn2CrV materials |
| CN108467920A (en) * | 2018-06-27 | 2018-08-31 | 台州市索立机械有限公司 | A kind of horizontal quenching press |
| CN108517391A (en) * | 2018-07-06 | 2018-09-11 | 南京工艺装备制造有限公司 | A kind of small deformation quenching technical of the linear guide |
| CN209322931U (en) * | 2018-10-16 | 2019-08-30 | 中煤张家口煤矿机械有限责任公司 | It is a kind of for scraping the auto-feeder of plate end face impewdance matching |
| CN209957836U (en) * | 2019-02-18 | 2020-01-17 | 大族激光科技产业集团股份有限公司 | Machine tool for laser quenching of die |
| CN110699537A (en) * | 2019-11-07 | 2020-01-17 | 云南太标数控机床有限公司 | Quenching tool capable of adjusting height and quenching processing technology thereof |
| CN111366076A (en) * | 2020-03-26 | 2020-07-03 | 武汉大学 | Optical fiber rod machine tool centering device and method based on circular arc quadrant classification circle detection |
| CN112941293A (en) * | 2021-03-11 | 2021-06-11 | 郑州科创电子有限公司 | Automatic production system for caterpillar track section |
| CN113699356A (en) * | 2021-09-02 | 2021-11-26 | 恒进感应科技（十堰）股份有限公司 | Gear ring whole tooth induction hardening machine tool |
| CN216919323U (en) * | 2021-12-06 | 2022-07-08 | 云南台圆精密机械有限公司 | Surface hardening device for large casting of machine tool |
| CN114571063A (en) * | 2022-04-11 | 2022-06-03 | 武汉大族金石凯激光系统有限公司 | Side vertical type synchronous double-drive laser processing machine tool |
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| CN115094213B (en) | 2024-06-04 |
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