CN202869725U - Numerical control push-pull force test bench - Google Patents
Numerical control push-pull force test bench Download PDFInfo
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- CN202869725U CN202869725U CN 201220530807 CN201220530807U CN202869725U CN 202869725 U CN202869725 U CN 202869725U CN 201220530807 CN201220530807 CN 201220530807 CN 201220530807 U CN201220530807 U CN 201220530807U CN 202869725 U CN202869725 U CN 202869725U
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Abstract
The utility model discloses a numerical control push-pull force test bench. The test bench comprises a working platform, a control panel, a moving device, a driving device and a transmission, the driving device drives the moving device to move upwards and downwards through the transmission, and the driving device is a stepping motor; and the test bench also comprises a position detecting device which includes an original point detection limit switch used for detecting whether the moving device moves to the upper end of a transmission shaft and a step-out detection limit switch used for detecting whether the stepping motor is in normal operation which are connected with the control panel. The adoption of the stepping motor enables the numerical control push-pull force test bench to be continuously adjustable in speed and high in displacement precision; displacement limitation can be set, and a step-out detection automatic stopping function is achieved; a microprocessor is adopted to control the operation of the devices, and manual, cyclic and programmable test modes can be realized; and an LCD is adopted to display, can display various information, such as displacement, speed, movement state and so on, and the operation is easy.
Description
Technical field
The utility model relates to a kind of electric test bench, relates in particular to a kind of numerical control push-pull effort test board.
Background technology
The push-pull effort test board is a kind of universal force value tests platform, movement by the movable block on the push-pull effort test board, drive is installed in the movement of the pull and push dynamometer on the movable block, measured piece is applied acting force, thereby the measurement of realizable force value is widely used in the departments such as production, experiment and quality inspection and does the tests such as push-and-pull load, contact engaging and separating force, failure test, torture test.The push-pull effort test board is divided into manual test platform and electric test bench two large classes, and manually the push-pull effort test board drives by handwheel, and electric push-and-pull power test board drives by motor.
Existing electric push-and-pull power test board generally uses AC motor or DC brushless electric machine.Adopt the push-pull effort test board of AC motor or DC brushless electric machine simple in structure, be easy to use, but can only simply start and stop control, can not the contraposition shift-in is capable accurately control, can only be used for the occasion not high to test request.Adopt the push-pull effort test board of AC motor or DC brushless electric machine, by manual adjusting knob control motor speed, and then the travelling speed of control movable block, but be difficult to when the pull and push dynamometer on test board is subject to different acting forces automatically regulate the speed, excessive velocities occur easily and cause article to be measured or pull and push dynamometer to be damaged.In addition, adopt the push-pull effort test board of AC motor or DC brushless electric machine, generally can not with the pull and push dynamometer communication, therefore can't read the power value that pull and push dynamometer measures, to realize the power value as spacing condition.
The utility model content
The purpose of this utility model is can not realize that for existing push-pull effort test board Accurate Position Control, speed can not self-adaptation regulate, do not have the weak points such as the power value is spacing to improve; a kind of numerical control push-pull effort test board that adopts stepper motor driving, microprocessor controls is provided; be significantly improved aspect position control, speed control, the position limitation protection; and provide multiple test pattern, easy operating.
For achieving the above object, described numerical control push-pull effort test board, comprise workbench, control panel, and all be installed on mobile device, the drive unit on the workbench and have the transmission shaft drive, be provided with microprocessor at described control panel, described drive unit is connected with this microprocessor communication; Described drive unit drives mobile device by gearing and moves up and down, and the pull and push dynamometer that is installed on the mobile device with drive moves up and down synchronously; Be characterized in that described drive unit is stepper motor; And,
Described numerical control push-pull effort test board also comprises position detecting device, described position detecting device comprise all be connected with described microprocessor communication for detection of mobile device whether move to transmission shaft the upper end initial point detectability bit switch and for detection of the stepper motor normal detection of loss of mains limit switch of operation whether.
Preferably, described gearing comprises shaft coupling, screw mandrel, feed screw nut and two guide rails, wherein, described stepper motor is installed on the workbench, the output shaft of stepper motor is connected with screw mandrel by described shaft coupling, and feed screw nut's threaded engagement is connected on the screw mandrel, and described mobile device is installed on the feed screw nut, screw mandrel is along with the output shaft synchronous of motor rotates, and feed screw nut and the mobile device that is fixedly mounted with thereon move up and down along the length direction of screw mandrel; And, be installed in the both sides that described two guide rails on the workbench are arranged at respectively screw mandrel, stably move up and down with auxiliary described mobile device.
Preferably, respectively be provided with a block buffering pad at the up and down two ends of described screw mandrel, when described mobile device accidental movement plays buffer action to the top of screw mandrel and bottom the time.
Preferably, described mobile device comprises movable block and the pull and push dynamometer installing plate that is installed on the movable block, described movable block is installed on the feed screw nut, and offer two linear bearings at this movable block, described two linear bearings cooperate respectively and are installed on described two guide rails, stably move up and down with auxiliary described mobile device.
Preferably, described initial point detectability bit switch and detection of loss of mains limit switch are inductance approach switch, wherein,
The induction end of described initial point detectability bit switch and the upper end of screw mandrel are in the same horizontal line, side at described movable block is provided with metal backup, when movable block moves to the upper end of screw mandrel, described metal backup is within the induction range of initial point detectability bit switch, this initial point detectability bit switch is triggered, and makes the out of service or reverse direction operation of microprocessor control step motor;
Be fixed with a rotation axis on the top of described screw mandrel, one side of the described rotation axis that rotates synchronously with described screw mandrel is metal material, the induction end of described detection of loss of mains limit switch and described rotation axis are positioned on the same level face, when a side of the metal material of described rotation axis during towards the induction end of described detection of loss of mains limit switch, this side is within the induction range of detection of loss of mains limit switch, this detection of loss of mains limit switch is triggered, and makes microprocessor indirectly obtain the running status of stepper motor.
Preferably, described pull and push dynamometer installing plate is installed on the described movable block by screw, the pull and push dynamometer installing plate that the pull and push dynamometer of different size is corresponding different.
Preferably, on described pull and push dynamometer installing plate, also be reserved with at least one for the communication interface that is connected with the pull and push dynamometer communication that is mounted thereon, each described communication interface is connected with described microprocessor communication by communication cable, transfers to microprocessor with the power value that pull and push dynamometer is obtained; Described communication cable is fixed on the described movable block by the cable fixture block.
Preferably, also be provided with the display button plate that is connected with described microprocessor communication on the front panel of the base of described numerical control push-pull effort test board.
Preferably, also be provided with EmS on the front panel of the base of described numerical control push-pull effort test board, described microprocessor communication connects the power supply of described numerical control push-pull effort test board through described EmS, in case of emergency press described EmS, can cut off the power supply of numerical control push-pull effort test board, stop the operation of stepper motor.
The beneficial effects of the utility model are:
(1) adopt speed that stepper motor makes numerical control push-pull effort test board continuously adjustable, displacement accuracy is high: stepper motor be a kind of be the topworks of angular displacement with electroporation.When step actuator receives a pulse signal, it rotates a fixing angle (being stepping angle) with regard to Driving Stepping Motor by the direction of setting.The three-phase stepper motor stepping angle is generally 1.2 °, and the error in per step is 3%～5%, and the error in per step can not accumulated, and angle and the pulse of stepper motor rotation be directly proportional, and therefore uses stepper motor can reach very high displacement accuracy.The speed of stepper motor rotation is proportional to pulsed frequency, can realize by the frequency of gating pulse the control of speed.Therefore, the utility model numerical control push-pull effort test board has the continuously high advantage of adjustable, displacement accuracy of speed;
(2) displacement position-limiting can be set, and have the detection of loss of mains automatic hold function; Have on this basis EmS, occuring directly to press EmS in the unpredictable situation, cut off the electricity supply, stop the motion of stepper motor;
(3) adopt microprocessor control, can carry out on-line communication by the communications protocol of appointment with the digital displaying push-and-pull tensiometer of corresponding model, the power value that can set appointment is spacing, by sampling power value and control the speed of movable block, when reaching specified force value limit point process, reduce gradually the speed of movable block, reduce the impulsive force that determinand and pull and push dynamometer are subject to;
(4) adopt microprocessor control, the 3 kinds of test patterns of can realizing manually, circulate, programme: maximum 6 test steps can be set under the programming mode, and each test step can arrange speed, displacement, power value and delay time; Under circulation and programming and testing pattern, can continue determinand is applied the constant force of specifying size;
(5) adopt LCD to show, can show the various information such as displacement, speed, motion state, easy operating.
Description of drawings
Fig. 1 shows the structural representation of numerical control push-pull effort test board described in the utility model.
Fig. 2 shows the three-dimensional exploded perspective view of the mobile device shown in Fig. 1.
Fig. 3 shows the three-dimensional exploded perspective view of the drive unit shown in Fig. 1 and gearing.
Fig. 4 shows the connection diagram of the drive unit shown in Fig. 3 and gearing.
Fig. 5 shows the structural representation of the position detecting device shown in Fig. 1.
Fig. 6 shows the functional-block diagram of numerical control push-pull effort test board described in the utility model.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments:
Fig. 1 shows the structural representation of numerical control push-pull effort test board described in the utility model, as shown in Figure 1, described numerical control push-pull effort test board, comprise workbench 1, control panel 4, and all be installed on mobile device 20, the drive unit 10 on the workbench 1 and have transmission shaft drive 30, being provided with microprocessor at described control panel 4, described drive unit 10 is connected with this microprocessor communication; Described drive unit 10 drives mobile device 20 by gearing 30 and moves up and down, and the pull and push dynamometer that is installed on the mobile device 20 with drive moves up and down synchronously.
As shown in Figure 3 and Figure 4, described drive unit 10 is stepper motor 11, and stepper motor 11 is installed on the motor cabinet 12 by four screws, and motor cabinet 12 uses four screws to be fixed on the workbench 1.Described gearing 30 comprises shaft coupling 31, screw mandrel 35, feed screw nut 33 and two guide rails 34, wherein, described stepper motor 11 is installed on the workbench 1, the output shaft of stepper motor 11 is connected with screw mandrel 35 by described shaft coupling 31, feed screw nut's 33 threaded engagement are connected on the screw mandrel 35, described mobile device 20 is installed on the feed screw nut 33, screw mandrel 35 is along with the output shaft synchronous of motor rotates, and feed screw nut 33 and the mobile device 20 that is fixedly mounted with thereon move up and down along the length direction of screw mandrel 35; And, be installed in the both sides that described two guide rails 34 on the workbench 1 are arranged at respectively screw mandrel 35, stably move up and down with auxiliary described mobile device 20.
Further, respectively be provided with a block buffering pad 36,32 at the up and down two ends of described screw mandrel 35, when described mobile device 20 accidental movements play buffer action, protection mobile device 20 to the top of screw mandrel 35 and bottom the time.
Fig. 2 shows the three-dimensional exploded perspective view of the mobile device 20 shown in Fig. 1, as shown in Figure 2, described mobile device 20 comprises movable block 23 and the pull and push dynamometer installing plate 21 that is installed on the movable block 23, described movable block 23 is installed on the feed screw nut 33, and offer two linear bearings 24 at this movable block 23, described two linear bearings 24 cooperate respectively and are installed on described two guide rails 34, stably move up and down with auxiliary described mobile device 20.Especially, described pull and push dynamometer installing plate 21 is installed on the described movable block 23 by screw, the pull and push dynamometer installing plate 21 that the pull and push dynamometer of different size is corresponding different.
Especially, described numerical control push-pull effort test board also comprises position detecting device 40, described position detecting device 40 comprise all be connected with described microprocessor communication for detection of mobile device 20 whether move to transmission shaft the upper end initial point detectability bit switch 42 and for detection of the stepper motor 11 detection of loss of mains limit switch 44 of operation whether normally.
Fig. 5 shows the structural representation of the position detecting device 40 shown in Fig. 1, and as shown in Figure 5, described initial point detectability bit switch 42 and detection of loss of mains limit switch 44 are inductance approach switch, and the model of inductance approach switch is preferably LJ8A3.Wherein:
The induction end of described initial point detectability bit switch 42 and the upper end of screw mandrel 35 are in the same horizontal line, be provided with metal backup 41 in the side of described movable block 23, when movable block 23 moves to the upper end of screw mandrel 35, the distance of the induction end of described metal backup 41 and initial point detectability bit switch 42 is less than 4mm, within the induction range of this initial point detectability bit switch 42, this initial point detectability bit switch 42 detects this metal backup 41 and is triggered, thereby mean that movable block 23 has moved to the upper end of screw mandrel 35, can not continue again to move up, the initial point detectability bit switch 42 that is triggered makes microprocessor control step motor 11 out of service or reverse direction operations to the microprocessor transmitted signal.
And, be fixed with a rotation axis 43 on the top of described screw mandrel 35, rotation axis and screw mandrel 35 rotate synchronously, one side of this rotation axis 43 is metal material, the induction end of described detection of loss of mains limit switch 44 and described rotation axis 43 are positioned on the same level face, when a side of the metal material of described rotation axis 43 during towards the induction end of described detection of loss of mains limit switch 44, the distance of the induction end of this side and detection of loss of mains limit switch 44 is less than 4mm, within the induction range of this detection of loss of mains limit switch 44, this detection of loss of mains limit switch 44 is triggered, the detection of loss of mains limit switch 44 that is triggered is to the microprocessor transmitted signal, thereby, every one week of rotation of the output shaft of stepper motor 11, rotation axis 43 also rotates a week synchronously, the side with metal material of this rotation axis 43 is just detected once by this detection of loss of mains limit switch 44, detection of loss of mains limit switch 44 just sends a signal to microprocessor, by this kind mode, make microprocessor indirectly obtain the running status of stepper motor 11, step-out whether occurs thereby monitor described stepper motor 11.
Described numerical control push-pull effort test board also has the function that is connected with the pull and push dynamometer communication that is mounted thereon, particularly, on described pull and push dynamometer installing plate 21, also be reserved with at least one for the communication interface 25 that is connected with the pull and push dynamometer communication that is mounted thereon, each described communication interface 25 is connected with described microprocessor communication by communication cable 26, transfers to microprocessor with the power value that pull and push dynamometer is obtained; Described communication cable 26 is fixed on the described movable block 23 by cable fixture block 22.
Can handling and Presentation Function in order to increase, also be provided with the display button plate 3 that is connected with described microprocessor communication on the front panel of the base of described numerical control push-pull effort test board, as shown in Figure 6, the user can arrange by display button plate 3 kinematic parameters such as displacement, speed.Particularly, display button plate 3 sends parameter to control panel 4 by connecting line, control panel 4 converts the gating pulse of stepper motor 11 to according to the parameter that arranges, and sends to stepper motor driver 5, and stepper motor driver 5 rotates according to gating pulse Driving Stepping Motor 11.In addition, microprocessor can use the agreement of appointment to read the power value of digital displaying push-and-pull tensiometer, and the LCD display after processing on display button plate 3 shows that described microprocessor can also be controlled the displacement that LCD display shows movable block 23.
In order to increase security performance, also be provided with EmS 2 on the front panel of the base of described numerical control push-pull effort test board, the power supply 6 of described numerical control push-pull effort test board connects through described EmS 2 described microprocessor communications, in case of emergency press described EmS 2, can cut off the power supply 6 of numerical control push-pull effort test board, stop the operation of stepper motor 11.
What deserves to be explained is that treating thrust or the pulling force that test article applies is to drive by stepper motor 11 to produce, and the size of the suffered power of object to be measured be by be installed in pull and push dynamometer on the movable block 23 detect obtain.The distance of drive unit 10 and gearing 30 push-and-pulls object motion to be measured, the speed degree that drives object motion to be measured, the velocity magnitude when coming and going, the cycle index of leapfrog test etc. all can be controlled by control system.
During test, use anchor clamps that thing to be tested is fixed on the workbench 1, at movable block 23 pull and push dynamometer is installed, then set operational factor at display button plate 3, spacing etc. such as speed, cycle index, displacement position-limiting, the power value of the stroke of test pattern, motion, operation, start after setting completed test.Display button plate 3 sending controling instructions are to control panel 4, and control panel 4 is converted into stepper motor 11 required umber of pulses to the stroke of motion and realizes.In the motion process, the output signal of control panel 4 continuous collection position pick-up units 40 and by reserving communication interface 25 sampling power value signals judges whether to reach displacement or the power value is spacing, after reaching setting spacing, and stop motion.
Being the utility model preferred embodiment only in sum, is not to limit practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (9)
1. numerical control push-pull effort test board, comprise workbench, control panel, and all be installed on mobile device, the drive unit on the workbench and have the transmission shaft drive, be provided with microprocessor at described control panel, described drive unit is connected with this microprocessor communication; Described drive unit drives mobile device by gearing and moves up and down, and the pull and push dynamometer that is installed on the mobile device with drive moves up and down synchronously; It is characterized in that: described drive unit is stepper motor; And,
Described numerical control push-pull effort test board also comprises position detecting device, described position detecting device comprise all be connected with described microprocessor communication whether move to the initial point detectability bit switch of transmission shaft upper end and for detection of the stepper motor detection of loss of mains limit switch of operation whether normally for detection of mobile device.
2. numerical control push-pull effort test board according to claim 1, it is characterized in that: described gearing comprises shaft coupling, screw mandrel, feed screw nut and two guide rails, wherein, described stepper motor is installed on the workbench, the output shaft of stepper motor is connected with screw mandrel by described shaft coupling, feed screw nut's threaded engagement is connected on the screw mandrel, described mobile device is installed on the feed screw nut, screw mandrel is along with the output shaft synchronous of motor rotates, and feed screw nut and the mobile device that is fixedly mounted with thereon move up and down along the length direction of screw mandrel; And, be installed in the both sides that described two guide rails on the workbench are arranged at respectively screw mandrel, stably move up and down with auxiliary described mobile device.
3. numerical control push-pull effort test board according to claim 2 is characterized in that: respectively be provided with a block buffering pad at the up and down two ends of described screw mandrel, when described mobile device accidental movement plays buffer action to the top of screw mandrel and bottom the time.
4. numerical control push-pull effort test board according to claim 2, it is characterized in that: described mobile device comprises movable block and the pull and push dynamometer installing plate that is installed on the movable block, described movable block is installed on the feed screw nut, and offer two linear bearings at this movable block, described two linear bearings cooperate respectively and are installed on described two guide rails, stably move up and down with auxiliary described mobile device.
5. numerical control push-pull effort test board according to claim 4, it is characterized in that: described initial point detectability bit switch and detection of loss of mains limit switch are inductance approach switch, wherein,
The induction end of described initial point detectability bit switch and the upper end of screw mandrel are in the same horizontal line, side at described movable block is provided with metal backup, when movable block moves to the upper end of screw mandrel, described metal backup is within the induction range of initial point detectability bit switch, this initial point detectability bit switch is triggered, and makes the out of service or reverse direction operation of microprocessor control step motor;
Be fixed with a rotation axis on the top of described screw mandrel, one side of the described rotation axis that rotates synchronously with described screw mandrel is metal material, the induction end of described detection of loss of mains limit switch and described rotation axis are positioned on the same level face, when a side of the metal material of described rotation axis during towards the induction end of described detection of loss of mains limit switch, this side is within the induction range of detection of loss of mains limit switch, this detection of loss of mains limit switch is triggered, and makes microprocessor indirectly obtain the running status of stepper motor.
6. according to claim 1 to 5 described numerical control push-pull effort test boards, it is characterized in that: described pull and push dynamometer installing plate is installed on the described movable block by screw, the pull and push dynamometer installing plate that the pull and push dynamometer of different size is corresponding different.
7. the described numerical control push-pull effort of any one test board in 5 according to claim 1, it is characterized in that: on described pull and push dynamometer installing plate, also be reserved with at least one for the communication interface that is connected with the pull and push dynamometer communication that is mounted thereon, each described communication interface is connected with described microprocessor communication by communication cable, transfers to microprocessor with the power value that pull and push dynamometer is obtained; Described communication cable is fixed on the described movable block by the cable fixture block.
8. the described numerical control push-pull effort of any one test board in 5 according to claim 1 is characterized in that: also be provided with the display button plate that is connected with described microprocessor communication on the front panel of the base of described numerical control push-pull effort test board.
9. the described numerical control push-pull effort of any one test board in 5 according to claim 1, it is characterized in that: also be provided with EmS on the front panel of the base of described numerical control push-pull effort test board, described microprocessor communication connects the power supply of described numerical control push-pull effort test board through described EmS, in case of emergency press described EmS, can cut off the power supply of numerical control push-pull effort test board, stop the operation of stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530807 CN202869725U (en) | 2012-10-17 | 2012-10-17 | Numerical control push-pull force test bench |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220530807 CN202869725U (en) | 2012-10-17 | 2012-10-17 | Numerical control push-pull force test bench |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077930A (en) * | 2016-06-29 | 2016-11-09 | 上汽通用五菱汽车股份有限公司 | A kind of automatic welding device |
| CN106655930A (en) * | 2016-09-18 | 2017-05-10 | 北京星网卫通科技开发有限公司 | Stepping motor loss of synchronism loss correction method based on proximity sensor |
| CN109029820A (en) * | 2018-08-29 | 2018-12-18 | 芜湖瑞泰汽车零部件有限公司 | A kind of seat switch push-botton operation power experiment test device |
| CN109270431A (en) * | 2018-09-25 | 2019-01-25 | 深圳市邦乐达科技有限公司 | A kind of automatic mold group pressure test equipment and method for testing pressure |
| CN110567696A (en) * | 2019-09-10 | 2019-12-13 | 适新科技（苏州）有限公司 | push-pull force testing system for shaft parts |
-
2012
- 2012-10-17 CN CN 201220530807 patent/CN202869725U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077930A (en) * | 2016-06-29 | 2016-11-09 | 上汽通用五菱汽车股份有限公司 | A kind of automatic welding device |
| CN106077930B (en) * | 2016-06-29 | 2019-02-15 | 上汽通用五菱汽车股份有限公司 | A kind of automatic welding device |
| CN106655930A (en) * | 2016-09-18 | 2017-05-10 | 北京星网卫通科技开发有限公司 | Stepping motor loss of synchronism loss correction method based on proximity sensor |
| CN106655930B (en) * | 2016-09-18 | 2019-11-05 | 北京星网卫通科技开发有限公司 | A kind of error correcting method for step out of stepping motor based on proximity sensor |
| CN109029820A (en) * | 2018-08-29 | 2018-12-18 | 芜湖瑞泰汽车零部件有限公司 | A kind of seat switch push-botton operation power experiment test device |
| CN109270431A (en) * | 2018-09-25 | 2019-01-25 | 深圳市邦乐达科技有限公司 | A kind of automatic mold group pressure test equipment and method for testing pressure |
| CN109270431B (en) * | 2018-09-25 | 2023-10-31 | 深圳市邦乐达科技有限公司 | Automatic module pressure testing equipment and pressure testing method |
| CN110567696A (en) * | 2019-09-10 | 2019-12-13 | 适新科技（苏州）有限公司 | push-pull force testing system for shaft parts |
| CN110567696B (en) * | 2019-09-10 | 2024-03-29 | 适新科技（苏州）有限公司 | Shaft part push-pull force testing system |
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Granted publication date: 20130410 Termination date: 20181017 |