CN115094213B - 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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- CN115094213B CN115094213B CN202210856111.7A CN202210856111A CN115094213B CN 115094213 B CN115094213 B CN 115094213B CN 202210856111 A CN202210856111 A CN 202210856111A CN 115094213 B CN115094213 B CN 115094213B
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- 238000010791 quenching Methods 0.000 title claims abstract description 150
- 230000000171 quenching effect Effects 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000006698 induction Effects 0.000 claims description 65
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- 230000033001 locomotion Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 8
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- 230000007774 longterm Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
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- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
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- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
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- 230000000007 visual effect Effects 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000007665 sagging Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The invention provides a numerical control quenching machine tool and a quenching process for a large workpiece, belongs to the technical field of heat treatment equipment of metals or alloys, and mainly aims to solve the problems that in the prior art, when the large workpiece is quenched, the vertical distance between a sensing head and the workpiece is required to be continuously adjusted, obvious hysteresis and lower precision exist in adjustment, errors and accessory parts exist in the surface of the large workpiece such as a guide rail in the processing process, excessive heating or insufficient heating can be caused in the quenching process, and the like, including a workpiece feature pre-acquisition system to be treated, a quenching and travelling mechanism and a quenching liquid circulation system. The invention sets the collection 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 of the space control 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 quenched products.
Description
Technical Field
The invention relates to the technical field of metal or alloy heat treatment equipment, in particular to a numerical control quenching machine tool and a quenching process for a large-sized workpiece.
Background
The linear guide rail is an important functional component on the 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 bears 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 good toughness, and since the guide rail is a high-precision product, has high heavy load capacity, and the parallelism and flatness precision of the installation must be above 0.1 mm. In order to ensure that the linear guide rail has better comprehensive mechanical property and installation precision, an induction quenching mode is adopted as an optimal heat treatment method.
However, the existing rolling linear guide rail induction quenching has the problems of large residual stress, large quenching distortion, poor precision retention and the like, and has become a bottleneck for restricting the development of the numerical control machine tool. The quenching device is mainly characterized in that an induction quenching head is suspended above a workpiece through a bracket in the working process of the existing quenching device, and a certain distance is kept, so that the quenching head is prevented from sagging due to gravity or environmental change in the moving process of the induction quenching head, the prior art is mainly considered to start from improving the strength of a supporting part of the bracket or the quenching head, and the change of the distance between the quenching head and the workpiece due to sagging and bending is prevented to the greatest extent; in the further technical scheme, a height regulator for regulating the distance is arranged between the quenching head and the supporting part, 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.
In addition, since the surface of the guide rail inevitably has machining errors during machining, or accessory components such as mounting holes and mounting platforms must be considered during quenching, the problems of ablation caused by overheating or insufficient surface hardness caused by insufficient heating are 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 a large-sized workpiece, wherein the quenching machine tool realizes automatic real-time control adjustment for controlling the distance between a quenching head and the workpiece, accurately and reasonably adjusts the vertical distance between the quenching head and the workpiece, ensures that the distance between the quenching head and the workpiece is kept constant, ensures that the workpiece is quenched uniformly, and ensures the quality of quenched products.
The invention adopts the following technical scheme: the numerical control quenching machine tool for the large-scale workpiece integrally adopts a floor type structure and is characterized by comprising a workpiece feature pre-acquisition system to be processed, a quenching and travelling mechanism and a quenching liquid circulating system;
The quenching and travelling mechanism comprises a base fixed on the bottom surface and X-direction guide rails erected on the base, wherein 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 in a concave shape, and the sliding blocks are fixed at the concave parts at the tops of the sliding block fixing frames; a movable bracket is arranged on each group of X-direction guide rails, and the two movable brackets are oppositely arranged; the bottom of any movable support is fixed with a slide block line rail at the position contacted with the corresponding slide block, the lower surface of the slide block line rail is provided with a groove and is movably connected with the slide block in a matching way, and the slide block line 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 middle lower position inside the movable support, rectangular notches are formed in four right angles of the isolation plate, anti-slip rail seats are arranged at the notches, and the anti-slip 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 induction-preventing bracket 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 meshed with an X-direction rack fixed on the inner side surface of the slider fixing frame, the X-direction servo motor rotates, walks on the X-direction rack, and drives a movable bracket fixed with the X-direction servo motor to move on an X-direction guide rail.
In addition, install Z to the removal rack on the front of movable support front end stand, at the lower extreme of stand, be provided with the extension board of hugging closely the stand lateral wall with division board fixed connection, the length of extension board surpasses the stand front, at the excess part along Y to installation Z to servo motor, the output of Z to servo motor installs drive gear to with install at the positive Z of stand and remove the rack and mesh mutually, Z to servo motor rotates, walks on Z to removing the rack, drives the division board and prevents that the response support is removed in Z upwards.
A Y-direction servo motor is arranged between the isolation plate and the anti-induction bracket, a Y-direction servo motor base is fixed on the isolation plate and is connected with the anti-induction bracket above through a transmission mechanism to drive the anti-induction bracket and a part arranged on the anti-induction bracket to move along the Y direction; the transformer is fixedly arranged above the induction-proof bracket, a beam plate is connected to the inner side vertical face of the transformer, a plurality of pull rods are arranged on the beam plate, the lower ends of the pull rods are connected with an induction quenching head, the induction quenching head is connected with the transformer through a wire, an adjustable structure is arranged between the beam plate and the pull rods and the induction quenching head, and meanwhile, all the pull rods are adjusted or one pull rod is independently adjusted, so that the distance between all the induction quenching heads or the single induction quenching head and the surface of a workpiece to be treated can be changed, and the adjustment of heating power is realized; the two beam plates on the two opposite movable brackets and the corresponding induction quenching heads can completely cover the surface of the workpiece to be treated in the Y direction.
The quenching liquid circulation system is independently arranged, a quenching liquid guide pipe connected with the quenching liquid circulation system is connected to the isolation plate along the top of the movable support, and the quenching liquid guide pipe is aligned with the rear end position of the induction quenching head through the spray head.
The workpiece feature pre-collection system to be processed comprises a feature collection support which is arranged on the induction-proof support and positioned in front of the induction quenching head, wherein the installation height of the feature collection support is identical to the initial height of the induction quenching head, and the height of the feature collection support is kept constant; a plurality of laser ranging sensors facing the working surface of the workpiece to be processed are arranged below the characteristic acquisition bracket, and image acquisition sensors which are arranged at intervals and have the same orientation as the laser ranging sensors are also arranged below the characteristic acquisition bracket; the device is also provided with a signal and image processor which is connected with the Z-direction servo motor through a signal wire.
Preferably, a reciprocating screw rod is arranged on the beam plate, a moving block of the screw rod is connected with an induction quenching head at the forefront end below the beam plate through a flexible rope, and a power head of the screw rod is connected with a deflection detection sensor arranged at the tail end of the induction quenching head through a signal transmission wire.
The invention also provides a quenching process adopting the quenching machine tool, which is characterized by comprising the following steps:
① Fixing a workpiece to be treated on an X-direction guide rail of a quenching machine tool base, and cleaning the surface of the workpiece;
② Starting an X-direction servo motor and a workpiece feature pre-acquisition system to be processed, and carrying out a workpiece surface feature acquisition process to be processed; the laser ranging sensor collects 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;
③ The laser ranging sensor and the image acquisition sensor transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and a motion trail chart which completely coincides with the surface condition of the workpiece to be processed is synthesized;
④ Converting the motion track graph into a signal which can be read by the servo motor and transmitting the signal to the Z-direction servo motor;
⑤ Starting an X-direction servo motor and an induction quenching head; the X-direction servo motor drives the induction-proof support to carry out Z-direction displacement along a sliding rail on the inner side surface of the upright post of the movable support by the Z-direction servo motor according to the synthesized motion track while carrying the movable support to move in the X-direction at a preset speed, and the distance between the induction-proof support and the surface of a workpiece to be processed is kept constant in real time;
⑥ The transformer converts the current, the induction quenching head carries out induction heating to a specific depth on the surface of the workpiece to be treated, so that the surface of the workpiece to be treated is quickly heated to the quenching temperature, and the quenching liquid is sprayed to the heating part through the spray head to cool the workpiece.
Preferably, in the quenching process, the beam plate supporting the induction quenching head and the induction quenching head are deformed and sagged after long-term working, the stiffness detection sensor sends out a signal and transmits the signal to the power head of the reciprocating screw rod through the lead, and the power head drives the moving block of the screw rod to upwards stretch and balance the sagged end part of the induction quenching head.
The beneficial effects are that: aiming at the problems that in the prior art, when a large workpiece is quenched, the vertical distance between a sensing head and the workpiece is required to be continuously adjusted, obvious hysteresis and lower precision exist in adjustment, errors and accessory parts exist on the surface of the large workpiece such as a guide rail in the processing process, excessive heating or insufficient heating can be caused in quenching, and the like, the invention provides a numerical control quenching machine tool and a corresponding quenching process for the large workpiece, and an acquisition mechanism and an information processing system for relevant characteristics of the quenching surface of the workpiece are arranged, so that the surface characteristics of the workpiece to be quenched are converted into a visual running track, the automation of the interval control of the quenching head and the workpiece is realized, the real-time control adjustment is realized, the vertical distance between the quenching head and the workpiece is accurately and reasonably adjusted, the interval between the quenching head and the workpiece is kept constant, the quenching uniformity of the workpiece is ensured, and the quenching product quality is ensured; in addition, the quenching machine tool is simple in structure and reasonable in design, and is specially provided with a deflection detection sensor and an adjusting screw rod to control the sagging and bending of the transverse beam plate and the induction quenching head, so that the quenching head and a workpiece keep a constant distance, and the quenching uniformity is ensured.
Drawings
Fig. 1 is a front view of the quenching machine.
Fig. 2 is a right side view of the quenching machine.
Fig. 3 is a plan view of the quenching machine.
Fig. 4 is a perspective view of the quenching machine.
Fig. 5 is a partial enlarged view of fig. 2.
Fig. 6 is a simplified top view of the quenching machine.
Fig. 7 is a simplified right side view of the quenching machine.
In the figure, a base 1, an X-direction guide rail 2, a sliding block 201, a sliding block fixing frame 202, a sliding block line rail 203, a movable support 3, a separation plate 301, a column 302, an induction preventing 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 collecting support 9 and a reciprocating screw 10.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1-3, the present embodiment provides a numerical control quenching machine tool for a large workpiece, which is used for quenching the surface of a workbench of the numerical control machine tool, and the machine tool is integrally fixed on the ground, and comprises a workpiece feature pre-collection system to be processed, a quenching and travelling mechanism and a quenching liquid circulation system; the quenching and walking mechanism comprises a base 1 fixed on the bottom surface and an X-direction guide rail 2 erected on the base 1, wherein the X-direction guide rail 2 is divided into a left group and a right group, each group of X-direction guide rail 2 respectively comprises two sliding blocks 201 and a corresponding sliding block fixing frame 202, and the sliding blocks 201 are fixed at the concave parts at the tops of the sliding block fixing frames 202; a movable bracket 3 is arranged on each group of X-direction guide rails 2, and the two movable brackets 3 are oppositely arranged; a sliding block wire rail 203 is fixed at the contact part of the bottom of any movable bracket 3 and the corresponding sliding block 201, a groove is formed on the lower surface of the sliding block wire rail 203 and is movably connected with the sliding block 201 in a matching way, and the sliding block wire rail 203 can be clamped on the sliding 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 middle lower position in the movable support, rectangular notches are formed in four right angles of the isolation plate 301, anti-slip rail seats are arranged at the notches, and the anti-slip rail seats are matched with sliding 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 preventing bracket 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 meshed with an X-direction rack 305 fixed on the inner side surface of the slide block fixing frame 202, the X-direction servo motor 304 rotates, walks on the X-direction rack 305, and drives a movable bracket 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 mounted on the front surface of the upright post 302 at the front end of the movable bracket 3, an extension plate which is tightly attached to the side wall of the upright post 302 is fixedly connected with the isolation plate 301 at the lowermost 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 mounted at the exceeding part along the Y-direction, a transmission gear is mounted at the output end of the Z-direction servo motor 307 and meshed with the Z-direction moving rack 306 mounted 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 preventing bracket 303 to move in the Z-direction.
A Y-direction servo motor 308 is arranged between the isolation plate 301 and the anti-induction bracket 303, the Y-direction servo motor 308 is fixed on the isolation plate 301 and is connected with the anti-induction bracket 303 above through a transmission mechanism to drive the anti-induction bracket 303 and components arranged on the anti-induction bracket 303 to move along the Y direction; the transformer 4 is fixedly arranged above the induction-proof bracket 303, the beam plate 5 is connected to the inner side vertical surface of the transformer 4, a plurality of pull rods 6 are arranged on the beam plate 5, the lower ends of the pull rods 6 are connected with the induction quenching heads 7, the induction quenching heads 7 are connected with the transformer 4 through wires, an adjustable structure is arranged between the beam plate 5 and the pull rods 6 and the induction quenching heads 7, and meanwhile, all the pull rods 6 are adjusted or one pull rod 6 is independently adjusted, so that the distance between all the induction quenching heads 7 or the single induction quenching head 7 and the surface of a workpiece to be treated can be changed, and the adjustment of heating power is realized; the two beam plates 5 and the corresponding induction quenching heads 7 on the two opposite movable brackets 3 can completely cover the surface of the workpiece to be treated in the Y direction; the quenching liquid circulation system is separately provided, and a quenching liquid pipe connected thereto is connected to the partition plate 301 along the top of the movable bracket 3 and aligned with the rear end position of the induction quenching head 7 through the shower head 8.
The workpiece feature pre-collection system to be processed comprises a feature collection support 9 which is arranged on an induction prevention support 303 and positioned in front of the induction quenching head 7, wherein the installation height of the feature collection support 9 is identical to the initial height of the induction quenching head 7, and the height of the feature collection support is kept constant; a plurality of laser ranging sensors facing the working surface of the workpiece to be processed are arranged below the characteristic acquisition bracket 9, and image acquisition sensors which are arranged at intervals and have the same orientation as the laser ranging sensors are also arranged below the characteristic acquisition bracket; a signal and image processor is also provided and connected to the Z-direction servomotor 307 by signal conductors.
Considering that the temperature rise of the beam plate 5 and the pull rod 6 after long-term working can cause a certain degree of deformation, obvious sagging is caused at the end part of the beam plate 5, the distance between the induction quenching head 7 and a workpiece is influenced, a reciprocating screw rod 10 is arranged on the beam plate 5, a moving block of the screw rod is connected with the induction quenching head 7 at the forefront end below the beam plate 5 through a flexible rope, and a power head of the screw rod is connected with a deflection detection sensor arranged at the tail end of the induction quenching head 7 through a signal transmission wire.
The embodiment also provides a quenching process adopting the quenching machine tool, which comprises the following steps:
Fixing a workpiece to be treated on an X-direction guide rail 2 of a quenching machine tool base 1, and cleaning the surface of the workpiece; starting an X-direction servo motor 304 and a workpiece feature pre-acquisition system to be processed, and performing a workpiece surface feature acquisition process to be processed; the laser ranging sensor collects 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 ranging sensor and the image acquisition sensor transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and a motion trail chart which completely coincides with the surface condition of the workpiece to be processed is synthesized; converting the motion trail graph into a signal which can be read by a servo motor and transmitting the signal to a Z-direction servo motor 307; starting an X-direction servo motor 304 and an induction quenching head 7; the X-direction servo motor 304 drives the movable bracket 3 to move in the X-direction at a preset speed, and the Z-direction servo motor 307 drives the induction-proof bracket 303 to move in the Z-direction along the sliding rail on the inner side surface of the upright post 302 of the movable bracket 3 along the induction quenching head 7 according to the synthesized motion track, so that the distance between the induction quenching head 7 and the surface of a 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 surface of the workpiece to be treated to a specific depth, the surface is quickly 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 beam plate 5 supporting the induction quenching head 7 and the induction quenching head 7 are heated, deformed and sagged after long-term operation, at this time, the stiffness detection sensor sends out a signal, the signal is transmitted to the power head of the reciprocating screw rod 10 through a wire, and the power head drives the moving block of the screw rod, so that the sagged end part of the induction quenching head 7 is stretched upwards and kept balanced.
Claims (4)
1. The numerical control quenching machine tool for the large-scale workpiece integrally adopts a floor type structure and is characterized by comprising a workpiece feature pre-acquisition system to be processed, a quenching and travelling mechanism and a quenching liquid circulating system;
The quenching and travelling mechanism comprises a base fixed on the bottom surface and X-direction guide rails erected on the base, wherein 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 in a concave shape, and the sliding blocks are fixed at the concave parts at the tops of the sliding block fixing frames; a movable bracket is arranged on each group of X-direction guide rails, and the two movable brackets are oppositely arranged; a sliding block linear rail is fixed at the position of the bottom of any movable bracket, which is contacted with the corresponding sliding block, the lower surface of the sliding block linear rail is provided with a groove and is movably connected with the sliding block in a matching way, and the sliding block linear rail can be clamped on the sliding 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 middle lower position inside the movable support, rectangular notches are formed in four right angles of the isolation plate, anti-slip rail seats are arranged at the notches, and the anti-slip 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 induction-preventing bracket 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 meshed with an X-direction rack fixed on the inner side surface of the slider fixing frame, the X-direction servo motor rotates, walks on the X-direction rack, and drives a movable bracket fixed with the X-direction servo motor to move on an X-direction guide rail;
in addition, a Z-direction moving rack is arranged on the front surface of the upright post at the front end of the movable support, an extension plate which is tightly attached to the side wall of the upright post is fixedly connected with the isolation plate, the length of the extension plate exceeds the front surface of the upright post, a Z-direction servo motor is arranged at the exceeding part along the Y direction, a transmission gear is arranged at the output end of the Z-direction servo motor and meshed with the Z-direction moving rack arranged on the front surface of the upright post, the Z-direction servo motor rotates, walks on the Z-direction moving rack and drives the isolation plate and the induction-preventing support to move in the Z direction;
A Y-direction servo motor is arranged between the isolation plate and the anti-induction bracket, a Y-direction servo motor base is fixed on the isolation plate and is connected with the anti-induction bracket above through a transmission mechanism to drive the anti-induction bracket and a part arranged on the anti-induction bracket to move along the Y direction; the transformer is fixedly arranged above the induction-proof bracket, a beam plate is connected to the inner side vertical face of the transformer, a plurality of pull rods are arranged on the beam plate, the lower ends of the pull rods are connected with an induction quenching head, the induction quenching head is connected with the transformer through a wire, an adjustable structure is arranged between the beam plate and the pull rods and the induction quenching head, and meanwhile, all the pull rods are adjusted or one pull rod is independently adjusted, so that the distance between all the induction quenching heads or the single induction quenching head and the surface of a workpiece to be treated can be changed, and the adjustment of heating power is realized; two beam plates on two opposite movable brackets and corresponding induction quenching heads can completely cover the surface of a workpiece to be treated in the Y direction;
the quenching liquid circulation system is arranged independently, a quenching liquid guide pipe connected with the quenching liquid circulation system is connected to the isolation plate along the top of the movable bracket, 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-collection system to be processed comprises a feature collection support which is arranged on the induction-proof support and positioned in front of the induction quenching head, wherein the installation height of the feature collection support is identical to the initial height of the induction quenching head, and the height of the feature collection support is kept constant; a plurality of laser ranging sensors facing the working surface of the workpiece to be processed are arranged below the characteristic acquisition bracket, and image acquisition sensors which are arranged at intervals and have the same orientation as the laser ranging sensors are also arranged below the characteristic acquisition bracket; the device is also provided with a signal and image processor which is connected with the Z-direction servo motor through a signal wire.
2. The numerical control quenching machine tool for large workpieces according to claim 1, wherein a reciprocating screw rod is arranged on the transverse beam plate, a moving block of the screw rod is connected with an induction quenching head at the forefront end below the transverse beam plate through a flexible rope, and a power head of the screw rod is connected with a deflection detecting sensor arranged at the tail end of the induction quenching head through a signal transmission wire.
3. A quenching process using the numerical control quenching machine tool for large-sized workpieces as claimed in claim 1 or 2, comprising the steps of:
① Fixing a workpiece to be treated on an X-direction guide rail of a quenching machine tool base, and cleaning the surface of the workpiece;
② Starting an X-direction servo motor and a workpiece feature pre-acquisition system to be processed, and carrying out a workpiece surface feature acquisition process to be processed; the laser ranging sensor collects 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;
③ The laser ranging sensor and the image acquisition sensor transmit distance data and coordinate data obtained in the same distance to the signal and image processor, and a motion trail chart which completely coincides with the surface condition of the workpiece to be processed is synthesized;
④ Converting the motion track graph into a signal which can be read by the servo motor and transmitting the signal to the Z-direction servo motor;
⑤ Starting an X-direction servo motor and an induction quenching head; the X-direction servo motor drives the induction-proof support to carry out Z-direction displacement along a sliding rail on the inner side surface of the upright post of the movable support by the Z-direction servo motor according to the synthesized motion track while carrying the movable support to move in the X-direction at a preset speed, and the distance between the induction-proof support and the surface of a workpiece to be processed is kept constant in real time;
⑥ The transformer converts the current, the induction quenching head carries out induction heating to a specific depth on the surface of the workpiece to be treated, so that the surface of the workpiece to be treated is quickly heated to the quenching temperature, and the quenching liquid is sprayed to the heating part through the spray head to cool the workpiece.
4. A quenching process according to claim 3, wherein during the quenching process, the beam plate supporting the induction quenching head and the induction quenching head are deformed to sag due to temperature rise after long-term operation, and the stiffness detection sensor sends a signal to be transmitted to the power head of the reciprocating screw through the wire, and the power head drives the moving block of the screw to stretch and balance the sagged end of the induction quenching head upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210856111.7A CN115094213B (en) | 2022-07-21 | Numerical control quenching machine tool and quenching process for large-sized workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210856111.7A CN115094213B (en) | 2022-07-21 | Numerical control quenching machine tool and quenching process for large-sized workpiece |
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| Publication Number | Publication Date |
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| CN115094213A CN115094213A (en) | 2022-09-23 |
| CN115094213B true CN115094213B (en) | 2024-06-04 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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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