CN202319058U - Stroke detecting and controlling device of oil press - Google Patents

Stroke detecting and controlling device of oil press Download PDF

Info

Publication number
CN202319058U
CN202319058U CN2011204914511U CN201120491451U CN202319058U CN 202319058 U CN202319058 U CN 202319058U CN 2011204914511 U CN2011204914511 U CN 2011204914511U CN 201120491451 U CN201120491451 U CN 201120491451U CN 202319058 U CN202319058 U CN 202319058U
Authority
CN
China
Prior art keywords
slide block
hydraulic press
plc
waveguide
oil press
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011204914511U
Other languages
Chinese (zh)
Inventor
吴秋生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
World Heavy Machine (chinese) Co Ltd
Original Assignee
World Heavy Machine (chinese) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by World Heavy Machine (chinese) Co Ltd filed Critical World Heavy Machine (chinese) Co Ltd
Priority to CN2011204914511U priority Critical patent/CN202319058U/en
Application granted granted Critical
Publication of CN202319058U publication Critical patent/CN202319058U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a stroke detecting and controlling device of an oil press, which comprises an absolute-value non-contact type displacement sensor, a programmable logic controller (PLC), and a pressure proportional valve of the oil press, wherein the absolute-value non-contact type displacement sensor is mounted on an upright column of the oil press and connected to an input end with an analog-digital (AD) conversion function of the PLC; and an output end with a digital-analog (D/A) conversion function of the PLC is connected with the pressure proportional valve of the oil press so as to drive the pressure proportional valve to work. The detecting and controlling device has high repetitive positioning accuracy, and if the oil pressure is restarted after a circuit is in power loss, a slide block does not need to return to a zero point to be processed; when a power supply is interrupted and the circuit is re-connected at any time, the accurate position of the slide block can be displayed regardless of the position of the slide block in the stroke; and a signal sending position of a magnetic head of the slide block is in one-to-one corresponding with the actual stroke position.

Description

Hydraulic press stroke detection control device
Technical field
The utility model relates to a kind of hydraulic press stroke detection control device, relates in particular to a kind of hydraulic press ram travel detection control apparatus, belongs to the press device technical field.
Background technology
Traditional hydraulic press Stroke Control adopts magnetic railings ruler and magnetic head, and magnetic railings ruler and magnetic head are installed in respectively on hydraulic press column and the slide block.In hydraulic press when operation,, if when magnetic head does not wait with the magnetic railings ruler distance of reaction when vibrations or slide block operation take place lathe, hydraulic press can stop, control faults such as malfunctioning, and when each generation parking or fault, slide block will move to clear point again, readjusts.Therefore, adopt a kind of new hydraulic press stroke detection control device, solve problem ten minutes necessity that prior art exists.
Summary of the invention
The purpose of the utility model is to provide a kind of hydraulic press stroke detection control device; When solving hydraulic press generation vibrations or slider head and magnetic railings ruler distance of reaction and not waiting, hydraulic press can stop, control the technical problem that fault such as malfunctioning and slide block will return zero adjustment again.
The purpose of the utility model is achieved through following technical scheme:
A kind of hydraulic press stroke detection control device; Comprise absolute value non-contact displacement transducer 10, PLC 11, hydraulic press pressure proportioning valve 12; Said absolute value non-contact displacement transducer 10 is installed on the hydraulic press column 1; Absolute value non-contact displacement transducer 10 inserts the input of the band A/D translation function of PLC 11, the pressure proportioning valve 12 of the output termination hydraulic press of the band D/A translation function of PLC 11,12 work of driving pressure proportioning valve.
The purpose of the utility model can also further realize through following technical measures:
Aforementioned a kind of hydraulic press stroke detection control device; Also comprise support 3; Wherein absolute value non-contact displacement transducer 10 is the EP of an American MTS company type; Comprise slide block magnet 2, waveguide 4, sensor head electronic unit 6, said waveguide 4, sensor head electronic unit 6 are installed on the hydraulic press column 1, and said slide block magnet 2 is fixed on the slide block 5 of hydraulic press by support 3; Catenating slider magnet 2 moves up and down along waveguide 4 during slide block 5 operations, and the signal line of return of waveguide 4 connects the input of the band A/D translation function of PLC 11.
Compared with prior art, the beneficial effect of the utility model is: this detection control apparatus repetitive positioning accuracy is high, starts shooting again after the circuit dead electricity need not return and carries out the position processing zero point.No matter slide block which position in stroke can both show the accurate position of slide block, slider head sender position was corresponding one by one with the traveled distance position when arbitrary time, the generation outage reclosed circuit.
Description of drawings
Fig. 1 is the circuit diagram of the utility model;
Fig. 2 is the structural plan of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.As shown in Figure 1; The utility model comprises absolute value non-contact displacement transducer 10, PLC 11, hydraulic press pressure proportioning valve 12; Said absolute value non-contact displacement transducer 10 is installed on the hydraulic press column 1; Absolute value non-contact displacement transducer 10 inserts the input of the band A/D translation function of PLC 11, the pressure proportioning valve 12 of the output termination hydraulic press of the band D/A translation function of PLC 11,12 work of driving pressure proportioning valve.Absolute value non-contact displacement transducer 10 is selected the EP of American MTS company type for use in the present embodiment; As shown in Figure 2; Comprise slide block magnet 2, waveguide 4, sensor head electronic unit 6, said waveguide 4, sensor head electronic unit 6 are installed on the hydraulic press column 1, and said slide block magnet 2 is fixed on the slide block 5 of hydraulic press by support 3; Catenating slider magnet 2 moves up and down along waveguide 4 during slide block 5 operations, and the signal line of return of waveguide 4 connects the input of the band A/D translation function of PLC 11.
Slide block 5 upper and lower mobile catenating slider magnet 2 are done upper and lower motion in the waveguide 4 of band ferromagnetic material, slide block magnet 2 produces longitudinal magnetic field with waveguide 4.Sensor head electronic unit 6 feeds radially " inquiry potential pulse signal " magnetic field; The moment of intersecting when these two magnetic fields generation magneto-striction phenomenon in the waveguide 4; A new strain-pulse produces immediately, and this pulse signal moves Returning sensor head electronic unit 6 and detects the position of slide block magnet 2 accurately through detector from producing point (being the position measurement point) with ultrasonic speed.Concrete grammar is that high-speed timers in the sensor head electronic unit 6 return the time that arrives sensor head electronic unit 6 to the strain pulse signal and detect, and the position was directly proportional with the time, detects slide block magnet 2 absolute value position numerical value with this time.Just this signal is imported the PLC analog module then, carries out analytical calculation through the PLC program, the flow size of control hydraulic press pressure proportioning valve, thereby control ram travel.This technology can be used for the interior displacement of oil cylinder cylinder and the control of injection machine, and this control device repetitive positioning accuracy is high, starts shooting again after the circuit dead electricity need not return and carries out the position processing zero point.
Except that the foregoing description, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims (2)

1. hydraulic press stroke detection control device; It is characterized in that; Comprise absolute value non-contact displacement transducer (10), PLC (11), hydraulic press pressure proportioning valve (12); Said absolute value non-contact displacement transducer (10) is installed on the hydraulic press column (1); Absolute value non-contact displacement transducer (10) inserts the input of the band A/D translation function of PLC (11), the pressure proportioning valve (12) of the output termination hydraulic press of the band D/A translation function of PLC (11), driving pressure proportioning valve (12) work.
2. hydraulic press stroke detection control device as claimed in claim 1; It is characterized in that; Also comprise support (3); Said absolute value non-contact displacement transducer (10) is the EP of an American MTS company type; Comprise slide block magnet (2), waveguide (4), sensor head electronic unit (6), said waveguide (4), sensor head electronic unit (6) are installed on the hydraulic press column (1), and said slide block magnet (2) is fixed on the slide block (5) of hydraulic press by support (3); Catenating slider magnet (2) moves up and down along waveguide (4) during slide block (5) operation, and the signal line of return of waveguide (4) connects the input of the band A/D translation function of PLC (11).
CN2011204914511U 2011-12-01 2011-12-01 Stroke detecting and controlling device of oil press Expired - Fee Related CN202319058U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204914511U CN202319058U (en) 2011-12-01 2011-12-01 Stroke detecting and controlling device of oil press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204914511U CN202319058U (en) 2011-12-01 2011-12-01 Stroke detecting and controlling device of oil press

Publications (1)

Publication Number Publication Date
CN202319058U true CN202319058U (en) 2012-07-11

Family

ID=46431053

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204914511U Expired - Fee Related CN202319058U (en) 2011-12-01 2011-12-01 Stroke detecting and controlling device of oil press

Country Status (1)

Country Link
CN (1) CN202319058U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507293A (en) * 2013-10-12 2014-01-15 芜湖开瑞金属科技有限公司 Stroke control device of press machine of automobile sheet metal component
CN107175307A (en) * 2016-03-10 2017-09-19 上海工程技术大学 The real-time displacement measure and control device of fly press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507293A (en) * 2013-10-12 2014-01-15 芜湖开瑞金属科技有限公司 Stroke control device of press machine of automobile sheet metal component
CN103507293B (en) * 2013-10-12 2016-01-20 芜湖开瑞金属科技有限公司 A kind of automobile metal plate work stroke of a press control device
CN107175307A (en) * 2016-03-10 2017-09-19 上海工程技术大学 The real-time displacement measure and control device of fly press

Similar Documents

Publication Publication Date Title
CN203825178U (en) Ratio electromagnet magnetic force characteristic testing device
CN102778895B (en) Method for accurate positioning control system under overweight environment
CN203479251U (en) High-precision magnetostriction displacement/liquid level sensor calibration system device
CN103615436A (en) Numerical control electric-hydraulic proportioning system of steel tube straightening machine
CN202319058U (en) Stroke detecting and controlling device of oil press
CN103511365A (en) Hot rolling mill rolling control system used for improving rolling accuracy
CN201824201U (en) Device for on-line measurement of flatness of machined surface of workpiece for numerical control machine tool
CN102862094A (en) Hydraulic servo system controlled by numerical control system
CN204240939U (en) A kind of device for measuring piston outside diameter and diameter of ring groove
CN202351652U (en) Control system of servo electric cylinder
CN202582897U (en) Ball screw test device
CN202053492U (en) Auxiliary device used for injection molding machine die
CN203982204U (en) Metal works rectilinear motion positioning control system based on eddy current sensor
CN203992611U (en) A kind of cutting machine
CN104692131A (en) Automatic control system for industrial palletizing robot
CN203685776U (en) Numerical control electric-hydraulic proportional system of steel pipe straightening machine
CN203705150U (en) Power testing system for slide track seat of automobile seat
CN103901927A (en) Cutting fluid automatic control device applied to machine tool
CN102152171A (en) Device for detecting stroke of machine tool
CN203281485U (en) Adhesive dispensing arm structure suitable for die bonder as LED packaging equipment
CN202403869U (en) Standard transducer replacing device for build-up force standard machine
CN202648635U (en) Three-coordinate measuring machine capable of realizing multiple measuring modes
CN202824227U (en) Novel accurate coiling width positioning device
CN201528254U (en) Single-shaft servo control device
CN204545172U (en) A kind of hydraulic press table drawing-die accurate-location device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20151201