CN2665700Y - Drop hammer impact test machine controller remotely controlled by computer - Google Patents
Drop hammer impact test machine controller remotely controlled by computer Download PDFInfo
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- CN2665700Y CN2665700Y CN 200320131241 CN200320131241U CN2665700Y CN 2665700 Y CN2665700 Y CN 2665700Y CN 200320131241 CN200320131241 CN 200320131241 CN 200320131241 U CN200320131241 U CN 200320131241U CN 2665700 Y CN2665700 Y CN 2665700Y
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- drop hammer
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Abstract
The utility model discloses a drop hammer impact test machine controller remotely controlled by a computer, which is provided with a communication interface. The utility model can control the drop hammer impact test machine by an upper machine or a keyboard on a panel to finish a series of testing procedure of grabbing a hammer, positioning, impacting, preventing bounce, etc. On the basis of single chip computer technique, the utility model accepts two ways of pulse signals emitted by a rotary encoder, and the pulse signals are quadrupled by a programmable logical gate circuit and sent to an 8 bit reversible counter. The signals are read by a single chip computer through a data latch and calculation, such as accumulation, multiplying factor, etc. is carried out in the single chip computer. The current position where the drop hammer sucks an electromagnet is calculated. The external 220V alternating current on-off state signal is sent to the single chip computer by an optoelectronic isolator. The single chip computer sends the position data to a digital display to display and sends the control data to an output circuit. The utility model adopts a transducer to control a converter to control the rotating speed of the drop hammer. The utility model has high anti-interference capability and reliable and safe operation.
Description
Technical field
The utility model relates to the control device of plastic pipe shock resistance testing apparatus, the drop hammer impact testing machine controller of the hard to bear computer remote control of specifically a kind of energy.It is used to control grabbing among a series of test procedures such as hammer, location, impact, anti-bounce-back of drop hammer impact testing machine.
Background technology
Drop hammer impact testing machine is the plant equipment of test plastic pipe shock resistance, the windlass that the motion of whole drop hammer impact testing machine is driven by frequency converter usually, the suction of dropping hammer are held in the mouth electromagnet, stop that clamp electromagnet, position detecting device etc. constitute that these mechanisms will be by a controller monitoring.At present, the control instrument that the control drop hammer impact testing machine uses is independent operating mostly, can not carry out Long-distance Control by host computer, can not satisfy the needs that the user realizes the testing equipment networking monitoring.
The utility model content
In order to remedy the deficiency that existing drop hammer impact testing machine lacks remote control function, the purpose of this utility model provides a kind of SCM Based controller, has the RS232 communication interface, host computer can monitor to drop hammer by this interface inhales the present located position of rank electromagnet, set the position location, actions such as sending controling instruction is finished and grabbed hammer, seeks zero, puts in place, loose hammer.The utility model both can work independently, also can with host computer networking work, and controlled motion mechanism finishes and grabs hammer, seeks zero, the location, impacts, stops action such as secondary pulse automatically.
The technical solution adopted in the utility model is: be core with the single-chip microcomputer, adopt the communication interface communication, comprise frequency multiplier circuit, counter, imput output circuit, data-carrier store, program storage, display and keyboard, wherein: the differential received circuit input signal in the input circuit is a scrambler, output is delivered to the frequency multiplier circuit that is made of the FPGA (Field Programmable Gate Array) gate circuit and is carried out quadruple, again the two-way that forms being represented to drop hammer, the present located position of electromagnet is held in the mouth in suction and the pulse signal of direction of motion is delivered to counter, the data of described counter are got by monolithic is machine-readable by impact damper, draw the current position signalling of the suction rank electromagnet that drops hammer through the single-chip microcomputer computing, single-chip microcomputer respectively with address latch, address decoder and program storage, the data-carrier store communication, and link to each other with electrify restoration circuit by reset terminal; 220V alternating-current switch status signal is sent into single-chip microcomputer by the photoisolator of rectifier bridge in input circuit, and single-chip microcomputer receives instruction by keyboard or communication interface, and with result by outputing to display circuit and output circuit;
The normally opened contact of described output circuit repeat circuit is the output signal of switching value, is connected to alternating current generator by frequency converter, or directly links to each other with electromagnet; Display circuit is made of the nixie display and the light emitting diode that are installed on the panel, nixie display is on the one hand by the display/keyboard controller that is connected with single-chip microcomputer, drive by the display field driving circuit, on the other hand by the display/keyboard controller that is connected with single-chip microcomputer through anti-phase buffering driver, array display driver drives; Described light emitting diode input end receives the signal (be used for showing seek zero, location, impact conditions) of single-chip microcomputer through the switching value output latch; Described counter is made of the first～two up-down counter; Described single-chip microcomputer is provided with quartz (controlled) oscillator, is connected to nixie display through first～two-divider.
The utility model has the advantages that:
1. have communication interface, be convenient to remote monitoring.
2. adopt high-resolution pick-up unit, and cooperate control, the bearing accuracy height with frequency converter.
3. have " on the spot ", " long-range " working method, the unperturbed between two kinds of working methods switches.
4. function is complete, can finish the needed exercises of falling weight impact test automatically.
5. adopt isolation technology on hardware, controller is made up of single-chip microcomputer and peripheral circuit thereof, all adopts cmos device, and is low in energy consumption, reliability is high.
6. easy to operate, can show actual position value, desired location value and zero point and the spacing state of impact, all operations is all finished by singly-bound or single command.
7. input signal of the present utility model all adopts photoelectric coupler isolation, and the output of control of conversion device adopts relay to isolate, and the output of control electromagnet adopts contactless AC relay to isolate, and has improved antijamming capability.
Description of drawings
Fig. 1 is a circuit structure diagram of the present utility model.
Fig. 2 is the panel layout figure of an embodiment of the utility model.
Fig. 3 is that the utility model single-chip microcomputer is the circuit theory diagrams of core.
Fig. 4 is that the utility model is the circuit theory diagrams of core with the display/keyboard controller.
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment
Shown in Fig. 1～4, the utility model is a core with single-chip microcomputer U7, adopt communication interface RS232/TTL level translator U4 communication (linking to each other) with host computer, outer for stabilized voltage supply, comprise frequency multiplier circuit, counter, imput output circuit, data-carrier store, program storage, display and keyboard, wherein: the square-wave signal of two-way phase phasic difference 90 degree that pulse encoder is sent passes through by the differential received circuit U 3A in the input circuit, U3B inputs to the frequency multiplier circuit that is made of programmable gate circuit U 14 and carries out quadruple, again the two-way that forms being represented to drop hammer, the present located position of electromagnet is held in the mouth in suction and the pulse signal of direction of motion is delivered to by the first～two up-down counter U16, U17, described the first～two up-down counter U16, the data of U17 are read by single-chip microcomputer U7 by the first～two impact damper U19, draw the current position signalling of the suction rank electromagnet that drops hammer through single-chip microcomputer U7 computing, single-chip microcomputer U7 is by address latch U8, the two-level address code translator is (by single level address code translator U9 and two-level address code translator U11A, U11B, U11C constitutes) addressing, access program storer U10, data among the data-carrier store U12, and link to each other by reset terminal and electrify restoration circuit U13 (adopting NE555); Outside 220V alternating-current switch status signal (zero-bit, spacing) send into single-chip microcomputer U7 by the second～four photoisolator Q2～Q4 of rectifier bridge in input circuit, single-chip microcomputer U7 receives instruction by keyboard (through the first adaptor X1) or communication interface (through the second adaptor X2), and result is outputed to display circuit and output circuit;
The normally opened contact of described output circuit repeat circuit is the output signal of switching value, is connected to alternating current generator by frequency converter, or directly links to each other with electromagnet; Described display circuit constitutes by being installed in the 9th on the panel～16 nixie display LED9～LED16 and the first～three LED, 1～LED3, the the 9th～16 nixie display is driven through inverter buffer U20, array display driver U21 by the display/keyboard controller U2 that is connected with single-chip microcomputer U7 on the other hand on the one hand by the display/keyboard controller U2 that is connected with single-chip microcomputer U7, drive by the display field driving circuit that is made of the first～eight triode T1～T8; Described the first～three LED, 1～LED3 input end receives the signal of single-chip microcomputer U7 through switching value output latch U5, be used for showing seek zero, location, impact conditions; Described counter is made of the first～two up-down counter U16, U17; Described single-chip microcomputer U7 is provided with quartz (controlled) oscillator, is connected to display/keyboard controller U2 through first～two-divider U6A～U6.U15 is the input buffer of toggle switch.
The utility model principle is as follows:
Adopt single-chip microcomputer U7 as main control unit, by interface chip the RS232 level signal is become the Transistor-Transistor Logic level signal, receive host computer and give next querying command and control command by serial line interface, single-chip microcomputer U7 carries out analysis and judgement to this order, after confirming correctly, operate accordingly, and the result is formed reply data send to host computer.
The square-wave signal of two-way phase phasic difference 90 degree that pulse encoder is sent is by differential received circuit U 3A, the frequency multiplier circuit that the U3B input is made of programmable gate circuit U 14 carries out quadruple, form two-way and represent drop hammer the present located position of suction rank electromagnet and the pulse signal of direction of motion, deliver to by two four asynchronous up-down counter U16,8 up-down counter U16 that the U17 cascade constitutes, U17, this up-down counter U16, the data of U17 are read by single-chip microcomputer U7 by impact damper U19, and in single-chip microcomputer U7, add up, computings such as multiplying factor, calculating drops hammer inhales the current position of rank electromagnet; Outside 220Vac switch state signal (zero-bit, spacing) is sent into single-chip microcomputer U7 through the first～three photoisolator LED1～LED3.Single-chip microcomputer U7 gathers above-mentioned information on the one hand in real time, receives instruction by keyboard or communication interface on the other hand, handles as required, and result is outputed to nixie display and (position data) output circuit (control data).The output signal of switching value is the normally opened contact of relay; Adopt the rotating speed of Frequency Converter Control alternating current generator, thus the rising or falling speed that control is dropped hammer.
Concrete operations step and function are as follows:
1. the instruction that sends by " △ " under the preset height display window, " " key or host computer can be set the preset height set-point that drops hammer;
2. keyboard region
The fast liter that " △ ", " " and " stopping " key control are dropped hammer, operation is fallen soon, rises slowly, is fallen slowly, stops etc.;
3. " zero clearing " key is used for current true altitude is made as zero;
4. when the utility model carries out " seeking zero " operation receiving a mandate, finish following action: inhale the rank electromagnet and descend, detect limit signal after, stop, slowing down and rise, after detecting limit signal and disappearing, current location is made as certain certain value, stop;
5. the utility model carries out " location " when operation receiving a mandate, take following method: control of conversion device drive motor drags the suction rank electromagnet that drops hammer and draws close to desired location at full speed earlier, the difference of inhaling the current location of rank electromagnet and desired location when dropping hammer is during less than certain value, controller control of conversion device slows down, when inhaling rank electromagnet arrival desired location up to dropping hammer, controller control of conversion device carries out brake application stoping;
6. the utility model carries out " impact " when operation receiving a mandate, and finishes following action: inhale the rank electromagnet and unclamp, detect limit signal after, postpones 0.1 second, eject block electromagnetic iron, postpone 10 seconds, the block electromagnetic of withdrawing iron.
7. the utility model carries out " grabbing hammer " and " putting hammer " when operation receiving a mandate, and finishes following action: inhale the rank electromagnet and power on, postpones 1 second, inhale under the rank electromagnet.
8. the utility model carries out " clamp work " and " clamp resets " when operation receiving a mandate, and finishes following action: stop that the clamp electromagnet powers on, postpone 10 seconds, and following.
Described
" △ ", " ", " stopping ", " zero clearing ", " seeking zero ", " location ", " impact ", " grabbing hammer ", " putting hammer ", " clamp work " reach " clamp resets " key all is subjected to display/keyboard controller U2 by the first adaptor X control, and described " resetting " links to each other with electrify restoration circuit U13.
Single-chip microcomputer U7 described in the utility model adopts 80C31, address latch U8 adopts 74HC373, program storage U10 adopts 27C512, data-carrier store U12 adopts 28C64, address decoder U9 adopts 74HC138, and electrify restoration circuit U13 adopts NE555, and RS232/TTL level translator U4 adopts MAX232, switching value output latch U5 adopts 74HC273, for display/keyboard controller U2 adopts 82C79.
Claims (5)
1. the drop hammer impact testing machine controller of the hard to bear computer remote control of an energy, it is characterized in that: be core with the single-chip microcomputer, adopt the communication interface communication, comprise frequency multiplier circuit, counter, imput output circuit, data-carrier store, program storage, display and keyboard, wherein: the differential received circuit input signal in the input circuit is a scrambler, output is delivered to the frequency multiplier circuit that is made of the FPGA (Field Programmable Gate Array) gate circuit and is carried out quadruple, again the two-way that forms being represented to drop hammer, the present located position of electromagnet is held in the mouth in suction and the pulse signal of direction of motion is delivered to counter, the data of described counter are got by monolithic is machine-readable by impact damper, draw the current position signalling of the suction rank electromagnet that drops hammer through the single-chip microcomputer computing, single-chip microcomputer respectively with address latch, address decoder and program storage, the data-carrier store communication, and link to each other with electrify restoration circuit by reset terminal; 220V alternating-current switch status signal is sent into single-chip microcomputer by the photoisolator of rectifier bridge in input circuit, and single-chip microcomputer receives instruction by keyboard or communication interface, and with result by outputing to display circuit and output circuit.
2. according to the drop hammer impact testing machine controller of the hard to bear computer remote of the described energy of claim 1 control, it is characterized in that: the normally opened contact of described output circuit repeat circuit is the output signal of switching value, be connected to alternating current generator by frequency converter, or directly link to each other with electromagnet.
3. according to the drop hammer impact testing machine controller of the hard to bear computer remote of the described energy of claim 1 control, it is characterized in that: display circuit is made of the nixie display and the light emitting diode that are installed on the panel, nixie display is on the one hand by the display/keyboard controller that is connected with single-chip microcomputer, drive by the display field driving circuit, on the other hand by the display/keyboard controller that is connected with single-chip microcomputer through anti-phase buffering driver, array display driver drives; Described light emitting diode input end receives the signal (be used for showing seek zero, location, impact conditions) of single-chip microcomputer through the switching value output latch.
4. according to the drop hammer impact testing machine controller of the hard to bear computer remote control of the described energy of claim 1, it is characterized in that: described counter is made of the first～two up-down counter.
5. according to the drop hammer impact testing machine controller of the hard to bear computer remote control of the described energy of claim 1, it is characterized in that: described single-chip microcomputer is provided with quartz (controlled) oscillator, is connected to nixie display through first～two-divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131241 CN2665700Y (en) | 2003-12-30 | 2003-12-30 | Drop hammer impact test machine controller remotely controlled by computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131241 CN2665700Y (en) | 2003-12-30 | 2003-12-30 | Drop hammer impact test machine controller remotely controlled by computer |
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| Publication Number | Publication Date |
|---|---|
| CN2665700Y true CN2665700Y (en) | 2004-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320131241 Expired - Fee Related CN2665700Y (en) | 2003-12-30 | 2003-12-30 | Drop hammer impact test machine controller remotely controlled by computer |
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| CN (1) | CN2665700Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929230A (en) * | 2012-10-23 | 2013-02-13 | 杭州朗杰测控技术开发有限公司 | Measurement and control system and method for testing machine |
| CN105973727A (en) * | 2016-05-25 | 2016-09-28 | 武汉长海高新技术有限公司 | Pendulum impact tester control system and control method thereof |
| CN109084949A (en) * | 2018-08-06 | 2018-12-25 | 大连理工大学 | A kind of impact for bridge machinery is dropped hammer automatic rebound climbing device |
| CN113865623A (en) * | 2021-09-26 | 2021-12-31 | 烟台环球机床装备股份有限公司 | Interface circuit of incremental encoder-absolute value encoder |
-
2003
- 2003-12-30 CN CN 200320131241 patent/CN2665700Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929230A (en) * | 2012-10-23 | 2013-02-13 | 杭州朗杰测控技术开发有限公司 | Measurement and control system and method for testing machine |
| CN105973727A (en) * | 2016-05-25 | 2016-09-28 | 武汉长海高新技术有限公司 | Pendulum impact tester control system and control method thereof |
| CN109084949A (en) * | 2018-08-06 | 2018-12-25 | 大连理工大学 | A kind of impact for bridge machinery is dropped hammer automatic rebound climbing device |
| CN109084949B (en) * | 2018-08-06 | 2020-04-07 | 大连理工大学 | Automatic impact drop hammer rebounding climbing device for bridge detection |
| CN113865623A (en) * | 2021-09-26 | 2021-12-31 | 烟台环球机床装备股份有限公司 | Interface circuit of incremental encoder-absolute value encoder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |