CN102198491B - Anti-collision buffer system for large casting numerical control machining molding machine - Google Patents
Anti-collision buffer system for large casting numerical control machining molding machine Download PDFInfo
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- CN102198491B CN102198491B CN 201010603725 CN201010603725A CN102198491B CN 102198491 B CN102198491 B CN 102198491B CN 201010603725 CN201010603725 CN 201010603725 CN 201010603725 A CN201010603725 A CN 201010603725A CN 102198491 B CN102198491 B CN 102198491B
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Abstract
The invention provides an anti-collision buffer system for a large casting numerical control machining molding machine, belonging to the field of specific machining lathe fittings. The anti-collision buffer system for the large casting numerical control machining molding machine provided by the invention mainly consists of a pressure sensor for determining collision force, a displacement sensor for determining the current position of a mobile system, a spring passive damping system, an oil cylinder active damping system, a load bearing plate, a base, and a rubber pad. The invention is a mechanical, electrical and hydraulic integrated novel flexible anti-collision buffer system which is simple in structure and easy to mount and maintain; the collision safety of the whole system is monitored by two paths of signals, so that the reliability and the safety are improved; the collision time is prolonged through the double combined buffer effects of the damping spring and the hydraulic cylinder damping so that the collision energy is transferred into the anti-collision buffer system except the mobile system, thereby protecting the mobile system and lathe components, and prolonging the service life of equipment.
Description
Technical field
The invention belongs to the non-traditional machine tool field of accessories, be specifically related to a kind of security system structure of large-scale casting mold numerical control machining shaping.
Background technology
Casting mold digital control processing forming technique is the system integration of the technology such as cad technique, foundry engieering, Numeric Control Technology, cutting technology, is a kind of brand-new quick Casting mold manufacturing technology.Adopt the casting mold numerical control forming machine of this technology can be fully without mould, produce the casting sand mold of various shapes, for the single-piece that solves foundry goods, the production trial-production of small lot provide new carrier, use simultaneously this equipment to shorten the production cycle, boost productivity, be particularly useful for large part, small lot, complex-shaped casting mold processing.Casting mould digital control cutting processing former is comprised of the main part that contains multiaxis (three axles and more than) kinematic system, universal or special sand mold cutting tool system and sand-removing system and the special use control software that matches with the sand mold Cutting Process.At present, this technology and the equipment application of in the trial-manufacturing process of the new product exemplar casting molds such as engine, having succeeded.
In the large-scale casting mold numerical control machining shaping course of work, the X/Y/Z linear motion system all is equipped with the safety mechanical stopping means, in case but this safety caging device damages or lost efficacy, may cause linear motion system and track girder or other parts of lathe to bump because of misoperation or misprogrammed, cause the damage of equipment and processing sand mold, when serious even can damage the staff.
Summary of the invention
The present invention mainly provides a kind of large-scale casting mold numerical control machining shaping anticollision buffer system.
The present invention solves the technical scheme that large-scale casting mold numerical control machining shaping anticollision buffer problem adopts: when the lathe linear motion system exceeds the operation of setting stroke range; displacement transducer sends signal to the lathe master control system and reports to the police and cut off the kinematic system power supply; simultaneously the collision that produces owing to kinematic system inertia is carried out passive dual composite buffering with initiatively giving power by damping spring and hydraulic cylinder; prolong collision time; collision energy is transferred in the anticollision buffer system outside the kinematic system, reached the purpose of protection kinematic system and machine tool component.
This large-scale casting mold numerical control machining shaping anticollision buffer system, comprise force bearing plate, lead, the pedestal that is fixed together by bolt-connection and frame, described pedestal is pasted with yielding rubber and is provided with fairlead, described lead one end vertically stretches in the described fairlead and can slide in described fairlead, and the other end and described force bearing plate are bolted and are linked together; Be enclosed within the damping spring on the lead; Be fixedly mounted on the displacement transducer on the pedestal, stick on the rubber blanket that can play the crusherbull zone effect on the force bearing plate, be installed in the pressure sensor on the force bearing plate, the embedded metal derby of described rubber blanket, equipment and this device can be collided the load transfer of generation to pressure sensor, described displacement transducer is connected with the device Host interface with pressure sensor interface and is connected and can shows related data at LCDs, realizes record and the monitoring of collision process; Be installed in oil cylinder, fuel tank on the pedestal, piston rod exposed junction and the force bearing plate of described oil cylinder are hinged; Be fixedly mounted on the motor on the fuel tank, be installed in hydraulic valve bank, the oil pump support of fuel tank internal, described oil pump is installed on the oil pump support, link to each other with motor by shaft coupling, the motor-driven oil pump is to the hydraulic valve bank fuel feeding, pressure oil is delivered to oil cylinder through hydraulic valve bank, realizes the rectilinear motion of piston rod, and described hydraulic valve bank is comprised of overflow valve, check valve, control valve; The signal that equipment master control system setting program is carried by pressure sensor can analyze the impact force size, but the described hydraulic valve bank of step-less adjustment changes the size of oil cylinder working-pressure and flow, make oil cylinder produce the resistance that adapts, reach best collision damping, buffering effect; When the over proof power output of the suffered external force of described cylinder piston rod or piston have arrived terminal point, motor is still rotating, and at this moment oil pressure is increased to the pressure of setting in the oil circuit, and the overflow valve overflow realizes automatic overload protection.
The effect that the present invention is useful is: the present invention is a kind of mechanical, electrical, liquid integrated novel flexible anticollision buffer system, and the whole system collision safety is monitored simultaneously by two paths of signals, and reliability and security increase greatly; Double action by damping, buffering spring and hydraulic cylinder damping damping, the collision impact that bearing plate is born carries out dual composite buffering, prolong collision time, collision energy is transferred in the anticollision buffer system outside the kinematic system, reach the purpose of protection kinematic system and machine tool component; The present invention be a kind of simple in structure, reliability is high, is convenient to the high-tech product of installation and maintenance, can greatly reduce because operation or the accidents such as kinematic system collision that cause of misprogrammed the service life of improving equipment.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated:
Fig. 1 is this large-scale casting mold numerical control machining shaping anticollision buffer system structural representation;
Fig. 2 is the enlarged drawing of I among Fig. 1.
Reference numeral
1-rubber blanket 2-force bearing plate 3-metal derby 4-pressure sensor
5-damping spring 6-motor 7-pedestal 8-oil cylinder
9-fuel tank 10-hydraulic valve bank 11-oil pump 12-shaft coupling
13-oil pump support 14-displacement transducer 15-frame 16-yielding rubber
17-fairlead 18-lead
Below in conjunction with embodiment the present invention is described further.This large-scale casting mold numerical control machining shaping anticollision buffer system, comprise force bearing plate 2, lead 18, the pedestal 7 that is fixed together by bolt-connection and frame 15, described pedestal 7 is pasted with yielding rubber 16 and is provided with fairlead 17, described lead 18 1 ends vertically stretch into also can be in described fairlead 17 interior slips in the described fairlead 17, and the other end and described force bearing plate 2 are bolted and are linked together; Be enclosed within the damping spring 5 on the lead 18; Be fixedly mounted on the displacement transducer 14 on the pedestal 7, stick on the rubber blanket 1 that can play the crusherbull zone effect on the force bearing plate 2, be installed in the pressure sensor 4 on the force bearing plate 2, described rubber blanket 1 an embedded metal derby 3, equipment and this device can be collided the load transfer of generation to pressure sensor 4, described displacement transducer 14 is connected interface and is connected with the device Host interface respectively with pressure sensor, can show related data at LCDs, realizes record and the monitoring of collision process; Be installed in oil cylinder 8, fuel tank 9 on the pedestal 7, piston rod exposed junction and the force bearing plate 2 of described oil cylinder 8 are hinged; Be fixedly mounted on the motor 6 on the fuel tank 9, be installed in hydraulic valve bank 10, the oil pump support 13 of fuel tank 9 inside, described oil pump 11 is installed on the oil pump support 13, link to each other with motor 6 by shaft coupling 12, motor 6 drives oil pump 11 to hydraulic valve bank 10 fuel feeding, pressure oil is delivered to oil cylinder 8 through hydraulic valve bank 10, realizes the rectilinear motion of piston rod, and described hydraulic valve bank 10 is comprised of overflow valve, check valve, control valve.
Embodiment.The large-scale casting mold numerical control machine kinematic system of certain model heavily is 500kg, allows maximum operational speed 1.5m/s, at this kinematic system track girder an anticollision buffer system provided by the invention is installed.Rubber blanket 1 and the yielding rubber 16 of this anticollision buffer system are made by the high strength synthetic rubber, and compressive property is good, and certain pliability is arranged, and can effectively protect impact member when collision occurs, and reduce collision loss; When kinematic system exceeds when setting running, displacement transducer 14 sends the signal of telecommunication to master control system, makes the outage of kinematic system motor, sends simultaneously warning; Kinematic system is because inertial impaction rubber blanket 1 compression shock absorption spring 5, lead 18 slides along fairlead 17, and rubber blanket 1 and yielding rubber 16 can alleviate part distortion or the damage that the equipment collision causes, and elastic deformation occurs damping spring 5, the passive power of giving is converted into elastic potential energy with impact kinetic energy; Moment occurs in collision, displacement transducer 14 is malfunctioning to cause serious collision accident in order to avoid, pressure sensor 4 sends the signal of telecommunication to master control system, again detection, the outage of controlled motion system motor, 6 energisings of simultaneously master control system control anticollision buffer system motor drive oil pump 11 pressure oil output, and pressure oil is delivered to oil cylinder 8 through hydraulic valve bank 10, realize the motion of piston rod level pressure, initiatively give power; The signal analysis that the master control system setting program is carried by pressure sensor 14 goes out the impact force size, regulate the size of hydraulic valve bank 10 change oil cylinder 8 pressure and flow, reach best collision damping, buffering effect, exceed the specified power output of piston rod or piston has arrived terminal point such as collision impact power, motor 6 is still rotating, the corresponding setting pressure that is increased to of oil circuit oil pressure then, the overflow valve overflow realizes automatic overload protection; Passive double action of giving the damping-force adjustable of power and oil cylinder 8 by system's damping spring 5; the collision impact that bearing plate 2 is born carries out dual composite buffering; prolong collision time; collision energy is transferred in the anticollision buffer system outside the kinematic system, reached the purpose of protection kinematic system and machine tool component.
Claims (5)
1. one kind large-scale casting mold numerical control machining shaping anticollision buffer system, comprise force bearing plate (2), lead (18), the pedestal (7) that is fixed together by bolt-connection and frame (15), described pedestal (7) is pasted with yielding rubber (16) and is provided with fairlead (17), described lead (18) one ends vertically stretch in the described fairlead (17) and can slide in described fairlead (17), and the other end and described force bearing plate (2) are bolted and are linked together; Be enclosed within the damping spring (5) on the lead (18); Be fixedly mounted on the displacement transducer (14) on the pedestal (7), stick on the rubber blanket (1) that can play the crusherbull zone effect on the force bearing plate (2), be installed in the pressure sensor (4) on the force bearing plate (2), the embedded metal derby of described rubber blanket (1) (3), equipment and this device can be collided the load transfer of generation to pressure sensor (4), described displacement transducer (14) is connected 4 with pressure sensor) interface is connected with the device Host interface respectively, can show related data at LCDs, realize record and the monitoring of collision process; Be installed in oil cylinder (8), fuel tank (9) on the pedestal (7), the piston rod exposed junction of described oil cylinder (8) and force bearing plate (2) are hinged; Be fixedly mounted on the motor (6) on the fuel tank (9), be installed in fuel tank (9) inner hydraulic valve bank (10), oil pump support (13), described oil pump (11) is installed on the oil pump support (13), link to each other with motor (6) by shaft coupling (12), motor (6) drives oil pump (11) to hydraulic valve bank (10) fuel feeding, pressure oil is delivered to oil cylinder (8) through hydraulic valve bank (10), realize the rectilinear motion of piston rod, described hydraulic valve bank (10) is comprised of overflow valve, check valve, control valve.
2. large-scale casting mold numerical control machining shaping anticollision buffer system according to claim 1, it is characterized in that, whole device collision safety is monitored simultaneously by displacement transducer (14) and pressure sensor (4) two paths of signals, and reliability and security increase greatly.
3. large-scale casting mold numerical control machining shaping anticollision buffer system according to claim 1; it is characterized in that; by the passive double action of initiatively giving power for power and oil cylinder (8) damping shock absorption of damping spring (5); the collision impact that force bearing plate (2) is born carries out dual composite buffering; prolong collision time; collision energy is transferred in the anticollision buffer system outside the kinematic system, reached the purpose of protection kinematic system and machine tool component.
4. large-scale casting mold numerical control machining shaping anticollision buffer system according to claim 1, it is characterized in that, the signal analysis that the master control system setting program is carried by pressure sensor (4) goes out the impact force size, but step-less adjustment hydraulic valve bank (10) changes the size of oil cylinder (8) pressure and flow, make oil cylinder (8) produce the resistance that adapts, reach best collision damping, buffering effect.
5. large-scale casting mold numerical control machining shaping anticollision buffer system according to claim 1; it is characterized in that; this system has the automatic overload protection function; arrived terminal point such as the over proof power output of the suffered external force of oil cylinder (8) piston rod or piston, motor (6) is still rotating, and at this moment oil pressure is increased to the pressure of setting in the oil circuit; the overflow valve overflow; realize automatic overload protection, although motor (6) can not burn rotating.
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| CN 201010603725 CN102198491B (en) | 2010-12-24 | 2010-12-24 | Anti-collision buffer system for large casting numerical control machining molding machine |
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| CN 201010603725 CN102198491B (en) | 2010-12-24 | 2010-12-24 | Anti-collision buffer system for large casting numerical control machining molding machine |
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| CN102198491B true CN102198491B (en) | 2013-03-06 |
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| CN113751739B (en) * | 2021-08-03 | 2023-02-21 | 南京工大数控科技有限公司 | Intelligent anti-collision system of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0328972A2 (en) * | 1988-02-19 | 1989-08-23 | The Cross Company | Method and system for controlling a machine tool such as turning machine |
| CN2762992Y (en) * | 2005-02-22 | 2006-03-08 | 宋建恩 | Inner vibration type wire-drawing formation machine with collision-proof mechanism |
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