CN207908645U - A kind of Switch product modular functional test machine - Google Patents
A kind of Switch product modular functional test machine Download PDFInfo
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- CN207908645U CN207908645U CN201820312619.XU CN201820312619U CN207908645U CN 207908645 U CN207908645 U CN 207908645U CN 201820312619 U CN201820312619 U CN 201820312619U CN 207908645 U CN207908645 U CN 207908645U
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Abstract
The utility model is related to a kind of Switch product modular functional test machines, including rack, test device, PLC controller and display；Test device include the main mechanism for testing being fixed in rack and be detachably set on main mechanism for testing for the test bench of switch product to be clamped；Main mechanism for testing includes fixed frame, lead screw module, pull and push dynamometer, servo motor and displacement meter；Lead screw module includes the lead screw pedestal being fixed on fixed frame and the lead screw sliding block slided on lead screw pedestal；Pull and push dynamometer is fixed on lead screw sliding block；The pushing block of pull and push dynamometer is opposite with the button of switch product；Servo motor is fixed on lead screw pedestal and controls lead screw sliding block by a shaft coupling to be moved towards switch product；Lead screw pedestal is respectively arranged with the preceding optoelectronic switch of induction lead screw sliding block front and back position and rear optoelectronic switch along the front and back end in test bench direction；Displacement meter is fixed on the displacement on lead screw pedestal and for measuring lead screw sliding block.
Description
Technical field
The utility model is related to a kind of Switch product modular functional test machines, belong to automatization testing technique field.
Background technology
With the update of Switch product and diversification, the intelligent development of function, the test item of Switch product
Mesh is more and more, and required precision is higher and higher, and the structure of corresponding test machine is also just more and more accurate, and cost of manufacture is increasingly
Height, volume are also increasing.Obviously rise in this way, resulting in cost of the factory when buying test machine, safeguards, maintenance test machine
Added cost, while the space occupied by test machine is increasing, is brought in actual use to factory many constant.It is true
On, the test machine of the different products of identical series or same type, in addition to test bench can because shape, structure of product etc. because
Other than element is different, other structures, such as main test equipment, instrument all have certain general character in fact.
Utility model content
In order to overcome the above problem, the utility model to provide a kind of Switch product modular functional test machine, the test
Machine by usual test machine by being divided into common sparing and non-common part, when that need to test different Switch products,
Only need to change corresponding non-common part (i.e. test device), you can complete test.In this way, it is possible to reduce made due to more than the test machine
At the phenomenon that occupation of land is excessive, while the cost of factory can also be reduced.
The technical solution of the utility model is as follows：
A kind of Switch product modular functional test machine, including rack, test device, PLC controller and display；Institute
It includes the main mechanism for testing being fixed on the rack and the use that is detachably set on the main mechanism for testing to state test device
In the test bench of clamping switch product；The main mechanism for testing include fixed frame, lead screw module, pull and push dynamometer, servo motor and
Displacement meter；The lead screw module includes the lead screw pedestal being fixed on the fixed frame and the silk that is slided on the lead screw pedestal
Bar sliding block；The pull and push dynamometer is fixed on the lead screw sliding block；The pushing block of the pull and push dynamometer is pressed with the switch product
Button is opposite；The servo motor is fixed on the lead screw pedestal and controls the lead screw sliding block described in by a shaft coupling
Switch product moves；Before the lead screw pedestal is respectively arranged with the induction lead screw sliding block along the front and back end in the test bench direction
The preceding optoelectronic switch and rear optoelectronic switch of position afterwards；The displacement meter is fixed on the lead screw pedestal and for measuring the silk
The displacement of bar sliding block；The PLC controller respectively with display, servo motor, displacement meter, pull and push dynamometer, preceding optoelectronic switch
It is connected with rear optoelectronic switch electric signal；The PLC controller receives the electric signal of preceding optoelectronic switch and rear optoelectronic switch and control
Servo motor forward or reverse.
Further, the fixed frame includes the installation pedestal for being set to bottom and the survey being fixed in the installation pedestal
Try mechanism rack；The lead screw module is fixed on the mechanism for testing holder；One horizontal adjustable plate is set to the installation
On pedestal, the adjustable plate arranges several mounting holes penetrated through vertically；If bolt stem passes through the mounting hole, by the adjustable plate
It is fixed with the installation pedestal；A horizontal mounting base is fixed in the test bench bottom, and the mounting base arrangement is several perpendicular
The mounting hole directly penetrated through；If bolt stem passes through the mounting hole, the test bench and the adjustable plate are fixed.
Further, several spacer pins are fixed in the adjustable plate upper surface far from mechanism for testing holder side, described
Mounting base is resisted against the spacer pin outer；The spacer pin limits the test bench position.
Further, a fixture for the switch product to be clamped is set in the middle part of the test bench, is set on the fixture
It is equipped with several contact probes, the terminal electric signal that outputs and inputs of the contact probe and the switch product connect and is described
Switch product is powered；The contact probe is connect with the PLC controller electric signal；The fixture is controlled by several cylinders and is pressed from both sides
The tight or release switch product；It is provided with cylinder inductor on each cylinder；The cylinder inductor is controlled with the PLC
Device electric signal connection processed.
Further, several aviation plug male ends are provided in the rack；The aviation plug male end is controlled with the PLC
Device electric signal connection processed；One first electric wire one end is connect with the cylinder inductor, and the other end is provided with and the aviation plug
The matched aviation plug female end of male end；One second electric wire one end is connect with the contact probe, the other end be provided with it is described
The matched aviation plug female end of aviation plug male end；The aviation plug male end realizes institute with the aviation plug female end grafting
PLC controller is stated to connect with the cylinder inductor and the contact probe electric signal respectively.
Further, it is additionally provided with gas-tpe fitting on each cylinder；If be provided in the rack feeder and
Dry multitube dock quick plug male end；The multitube dock quick plug male end is connected to the feeder pipeline；One
Connection tracheae one end is connected to the gas-tpe fitting of the cylinder, and the other end is provided with and the multitube dock quick plug male end
Matched multitube dock quick plug female end；The PLC controller is connect with the feeder electric signal.
Further, it is additionally provided with industrial PC in the rack；The switch product is stored in the industrial PC
Test specification and test program；The industrial PC is connect with the PLC controller electric signal；The industrial PC receives institute
It states the detection data of PLC controller and judges whether the switch product complies with standard.
Further, it is additionally provided with alarm in the rack；The alarm connects with the PLC controller electric signal
It connects；The detection data that the industrial PC receives the PLC controller will determine that is obtained does not meet signal transmission to the PLC
Controller, the PLC controller control the alarm work.
Further, the alarm includes buzzer and indicator light.
The utility model has the advantages that：
1, make test machine that there is modularization and associativity, to enable to have the product of general character not shared only by replacement
Part and realize test, keep the cost reduction of test machine, efficiency constant.
2, take up an area excessive phenomenon caused by reducing because test machine is more.
3, circuit realizes quickly connection, gas circuit by aviation plug male end and the grafting of aviation plug female end and the connection of electric wire
Quickly connection is realized by multitube dock quick plug male end and the quick plug female end grafting of multitube dock and connection tracheae.
4, it is stored with the test specification and test program of different switch products in industrial PC, can be called at any time,
Judge whether switch product is qualified.
5, when detecting underproof switch product, alarm will be reminded.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the overall structure diagram of the test device of the utility model；
Fig. 3 is the overall structure diagram of the main mechanism for testing of the utility model；
Fig. 4 is the front view of Fig. 3；
Fig. 5 is the overall structure diagram of the test bench of the utility model；
Fig. 6 is the overall structure diagram of the adjustable plate of the utility model；
Fig. 7 is the block diagram of the utility model.
Reference numeral is expressed as in figure：
1, rack；11, display；12, aviation plug male end；13, multitube dock quick plug male end；2, test dress
It sets；21, adjustable plate；22, spacer pin；23, mounting hole；3, test bench；31, fixture；32, mounting base；33, mounting hole；34, gas
Cylinder；35, contact probe；36, cylinder inductor；4, main mechanism for testing；41, fixed frame；411, installation pedestal；412, mechanism for testing
Holder；42, lead screw module；421, lead screw pedestal；422, lead screw sliding block；43, pull and push dynamometer；431, pushing block；44, shaft coupling；45、
Preceding optoelectronic switch；46, rear optoelectronic switch；47, servo motor；48, displacement meter；5, switch product；6, industrial PC；7, PLC is controlled
Device processed；8, alarm；9, feeder.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1-7, a kind of Switch product modular functional test machine, including rack 1, test device 2, PLC control
Device 7 and display 11；The test device 2 includes the main mechanism for testing 4 being fixed in the rack 1 and is detachably set to institute
State the test bench 3 for switch product 5 to be clamped on main mechanism for testing 4；The main mechanism for testing 4 includes fixed frame 41, lead screw
Module 42, pull and push dynamometer 43, servo motor 47 and displacement meter 48；The lead screw module 42 includes being fixed on the fixed frame 41
Lead screw pedestal 421 and the lead screw sliding block 422 that is slided on the lead screw pedestal 421；The pull and push dynamometer 43 is fixed on described
On lead screw sliding block 422；The pushing block 431 of the pull and push dynamometer 43 is opposite with the button of the switch product 5；The servo motor 47
It is fixed on the lead screw pedestal 421 and the lead screw sliding block 422 is controlled by a shaft coupling 44 and moved towards the switch product 5
It is dynamic；The lead screw pedestal 421 is respectively arranged with along the front and back end in 3 direction of the test bench before and after the induction lead screw sliding block 422
The preceding optoelectronic switch 45 and rear optoelectronic switch 46 of position；The displacement meter 48 is fixed on the lead screw pedestal 421 and for surveying
Measure the displacement of the lead screw sliding block 422；The PLC controller 7 respectively with display 11, servo motor 47, displacement meter 48, push away
Tensiometer 43, preceding optoelectronic switch 45 are connected with 46 electric signal of rear optoelectronic switch；Optoelectronic switch 45 before the PLC controller 7 receives
With the electric signal and 47 forward or reverse of control servomotor of rear optoelectronic switch 46.45 He of optoelectronic switch before PLC controller 7 receives
The electric signal of optoelectronic switch 46 and 47 forward or reverse of control servomotor afterwards, and then the lead screw is controlled by shaft coupling 44 and is slided
Block 422 is moved towards the switch product 5；Pull and push dynamometer 43 is used for dynamometry degree, and displacement meter 48 is used for displacement amount, it is final these
Data will be acquired by PLC controller 7, and be shown on display 11.
Further, the fixed frame 41 includes being set to the installation pedestal 411 of bottom and being fixed on the installation pedestal
Mechanism for testing holder 412 on 411；The lead screw module 42 is fixed on the mechanism for testing holder 412；One horizontal adjusting
Plate 21 is set in the installation pedestal 411, and the adjustable plate 21 arranges several mounting holes 23 penetrated through vertically；If bolt stem is worn
The mounting hole 23 is crossed, the adjustable plate 21 and the installation pedestal 411 are fixed；A level is fixed in 3 bottom of the test bench
Mounting base 32, the mounting base 32 arranges several mounting holes 33 penetrated through vertically；If bolt stem passes through the mounting hole
33, the test bench 3 and the adjustable plate 21 are fixed.Mounting hole 33 is oblong, and mounting hole 23 is oblong.Hole is set as
If oblong primarily to when facilitating fixed hole position be deviated, can also be finely adjusted, prevent from leading to nothing because of hole position error
Method is installed
Further, several spacer pins are fixed in 21 upper surface of the adjustable plate far from 412 side of mechanism for testing holder
22, the mounting base 32 is resisted against 22 outer of the spacer pin；The spacer pin 22 limits 3 position of the test bench.Limit
Pin 22 is fixed on adjustable plate 21, and when installing test bench 3, the mounting base 32 of test bench 3 is resisted against the spacer pin 22
Outer；It is not crooked when being finely adjusted on adjustable plate 21 to may insure that test bench 3 is mounted on.
Further, fixture 31 of the 3 middle part setting one of test bench for the switch product 5 to be clamped, the fixture 31 are stated
On be provided with several contact probes 35, the contact probe 35 outputs and inputs terminal electric signal company with the switch product 5
It connects and is that the switch product 5 is powered；The contact probe 35 is connect with 7 electric signal of the PLC controller；The fixture 31 is logical
It crosses several cylinders 34 and controls switch product 5 described in clamp or release；It is provided with cylinder inductor 36 on each cylinder 34；Institute
Cylinder inductor 36 is stated to connect with 7 electric signal of the PLC controller；The PLC controller 7 receives the contact probe 35 and institute
It states the signal of cylinder inductor 36 and controls the work of the cylinder 34；The cylinder inductor 36 incudes the position of the cylinder 34
It sets, and transmits a signal to the PLC controller 7；The piston rod that the PLC controller 7 controls the cylinder 34 is stretched out or is returned
Contracting, to control the clamping of the fixture 31 or loosen.
Further, several aviation plug male ends 12 are provided in the rack 1；The aviation plug male end 12 with it is described
7 electric signal of PLC controller connects；One first electric wire one end is connect with the cylinder inductor 36, the other end be provided with it is described
12 matched aviation plug female end of aviation plug male end；One second electric wire one end is connect with the contact probe 35, the other end
It is provided with and 12 matched aviation plug female end of the aviation plug male end；The aviation plug male end 12 is inserted with the aviation
Head female end grafting realizes that the PLC controller 7 connects with the cylinder inductor 36 and 35 electric signal of the contact probe respectively
It connects.In this way, the circuit system of the test machine can pass through aviation plug male end 12 and the grafting of aviation plug female end and the company of electric wire
It connects, realizes quickly connection.
Further, it is additionally provided with gas-tpe fitting on each cylinder 34；Feeder 9 is provided in the rack 1
With several multitube dock quick plug male ends 13；The multitube dock quick plug male end 13 is managed with the feeder 9
Road is connected to；One connection tracheae one end is connected to the gas-tpe fitting of the cylinder 34, and the other end is provided with and the multitube dock
13 matched multitube dock quick plug female end of quick plug male end；The PLC controller 7 and 9 electricity of the feeder
Signal connects.In this way, the air-channel system multitube dock quick plug male end 13 and multitube dock quick plug of the test machine
Female end grafting and connection tracheae realize quickly connection.
Further, it is additionally provided with industrial PC 6 in the rack 1；The switch production is stored in the industrial PC 6
The test specification and test program of product 5；The industrial PC 6 is connect with 7 electric signal of the PLC controller；The industrial PC 6
It receives the detection data of the PLC controller 7 and judges whether the switch product 5 complies with standard.The survey of different switch products 5
Examination program and test specification can be stored in advance on industrial PC 6, then transfer corresponding test program by switch product 5
The replacement of test program can be rapidly completed.Then, PLC controller 7 passes through by collected data feedback to industrial PC 6
Industrial PC 6 is judged, judges whether the switch product 5 complies with standard.
Further, it is additionally provided with alarm 8 in the rack 1；The alarm 8 and 7 electric signal of the PLC controller
Connection；The detection data that the industrial PC 6 receives the PLC controller 7 will determine that is obtained does not meet signal transmission to institute
PLC controller 7 is stated, the PLC controller 7 controls the work of the alarm 8.Alarm 8, which is arranged, to be sentenced to work as industrial PC 6
When the switch product 5 that breaks is unqualified, electric signal is issued alarm 8 by industrial PC 6 by PLC controller 7, and alarm 8 sends out police
Report reminds operating personnel to pay attention to.
Further, the alarm 8 includes buzzer and indicator light.Buzzer is for making a sound alarm, indicator light
For sending out light alarm, operating personnel are reminded to pay attention to this.
The operation principle of the utility model：
Referring to Fig. 1-7, after opening total power switch, servo motor 47 finds the test of test machine by preceding optoelectronic switch 45
Origin, subsequently into armed state.Start button, 31 clamping switch product 5 of fixture, and contact probe 35 is pressed to produce with switch
Product 5 output and input the connection of terminal electric signal, while powering for switch product 5, the rotation of servo motor 47 at this time and to being pushed forward
Dynamic lead screw module 42, to drive pull and push dynamometer 43 to be moved to 5 direction of switch product.When the pushing block 431 of 43 front end of pull and push dynamometer
When touching the button of switch product 5, pull and push dynamometer 43 detects thrust signal at this time, this signal is issued PLC controller 7,
PLC controller 7 is using this signal as the priming stroke position of switch product 5, while 7 command displacement meter 48 of PLC controller is zeroed
The clock zero carried with PLC controller 7.Servo motor 47 continues the button of pull switch product 5 forward, until bottom.
During this, the contact situation of switch product 5 exports situation, and the corresponding displacement of transition status, dynamics, time are all controlled by PLC
6 synchronous acquisition of device 7 and industrial PC.After the operation on earth of switch product 5, PLC controller 7 receives the letter of rear optoelectronic switch 46
Number, 7 control servomotor 47 of PLC controller reversion, lead screw module 42 starts reversion and retreats, switch product 5 in fallback procedures
Contact situation, output situation, the corresponding displacement of transition status, dynamics, time are also all synchronous with industrial PC 6 by PLC controller 7
Acquisition.Industrial PC 6 passes through the analysis to these data, so that it may with advance in the indices switched, with industrial PC 6
After the standard value of storage is compared, so that it may to obtain qualified or not conclusion；If the switch product 5 tested is unqualified,
Industrial PC 6 transmits information to PLC controller 7, and PLC controller 7 controls alarm 8 and works, and operating personnel is reminded to pay attention to.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (9)
1. a kind of Switch product modular functional test machine, it is characterised in that：Including rack (1), test device (2), PLC controls
Device (7) processed and display (11)；The test device (2) includes being fixed on the main mechanism for testing (4) in the rack (1) and can
Dismounting is set to the test bench (3) for switch product (5) to be clamped on the main mechanism for testing (4)；The main mechanism for testing
(4) include fixed frame (41), lead screw module (42), pull and push dynamometer (43), servo motor (47) and displacement meter (48)；The lead screw
Module (42) includes the lead screw pedestal (421) being fixed on the fixed frame (41) and is slided on the lead screw pedestal (421)
Lead screw sliding block (422)；The pull and push dynamometer (43) is fixed on the lead screw sliding block (422)；The pull and push dynamometer (43)
Pushing block (431) is opposite with the button of the switch product (5)；The servo motor (47) is fixed on the lead screw pedestal (421)
It is upper and mobile towards the switch product (5) by a shaft coupling (44) the control lead screw sliding block (422)；The lead screw pedestal
(421) front and back end along the test bench (3) direction is respectively arranged with the preceding light for incuding lead screw sliding block (422) front and back position
Electric switch (45) and rear optoelectronic switch (46)；The displacement meter (48) is fixed on the lead screw pedestal (421) and for measuring
The displacement of the lead screw sliding block (422)；The PLC controller (7) respectively with display (11), servo motor (47), displacement
Meter (48), pull and push dynamometer (43), preceding optoelectronic switch (45) are connected with rear optoelectronic switch (46) electric signal；The PLC controller (7)
Receive the electric signal and control servomotor (47) forward or reverse of preceding optoelectronic switch (45) and rear optoelectronic switch (46).
2. Switch product modular functional test machine according to claim 1, it is characterised in that：Fixed frame (41) packet
Include the mechanism for testing holder (412) for being set to the installation pedestal (411) of bottom and being fixed in the installation pedestal (411)；Institute
Lead screw module (42) is stated to be fixed on the mechanism for testing holder (412)；One horizontal adjustable plate (21) is set to the installation
On pedestal (411), the adjustable plate (21) arranges several mounting holes (23) penetrated through vertically；If bolt stem passes through the mounting hole
(23), the adjustable plate (21) and the installation pedestal (411) is fixed；A horizontal peace is fixed in test bench (3) bottom
Bottom plate (32) is filled, the mounting base (32) arranges several mounting holes (33) penetrated through vertically；If bolt stem passes through the installation
Hole (33), the test bench (3) and the adjustable plate (21) is fixed.
3. Switch product modular functional test machine according to claim 2, it is characterised in that：On the adjustable plate (21)
Several spacer pins (22) are fixed in end face far from mechanism for testing holder (412) side, and the mounting base (32) is resisted against institute
State spacer pin (22) outer；The spacer pin (22) limits test bench (3) position.
4. Switch product modular functional test machine according to claim 1, it is characterised in that：In the test bench (3)
Portion's setting one is used to be clamped the fixture (31) of the switch product (5), and several contact probes are provided on the fixture (31)
(35), the terminal electric signal that outputs and inputs of the contact probe (35) and the switch product (5) connect and is the switch
Product (5) is powered；The contact probe (35) connect with the PLC controller (7) electric signal；The fixture (31) is by several
Cylinder (34) controls switch product (5) described in clamp or release；It is provided with cylinder inductor (36) on each cylinder (34)；
The cylinder inductor (36) connect with the PLC controller (7) electric signal.
5. Switch product modular functional test machine according to claim 4, it is characterised in that：It is set on the rack (1)
It is equipped with several aviation plug male ends (12)；The aviation plug male end (12) connect with the PLC controller (7) electric signal；One
First electric wire one end is connect with the cylinder inductor (36), and the other end is provided with to be matched with the aviation plug male end (12)
Aviation plug female end；One second electric wire one end is connect with the contact probe (35), and the other end is provided with to be inserted with the aviation
Head male end (12) matched aviation plug female end；The aviation plug male end (12) is realized with the aviation plug female end grafting
The PLC controller (7) connect with the cylinder inductor (36) and the contact probe (35) electric signal respectively.
6. Switch product modular functional test machine according to claim 4, it is characterised in that：Each cylinder (34)
On be additionally provided with gas-tpe fitting；Feeder (9) and several multitube dock quick plug male ends are provided on the rack (1)
(13)；The multitube dock quick plug male end (13) is connected to the feeder (9) pipeline；One connection tracheae one end with
The gas-tpe fitting of the cylinder (34) is connected to, and the other end is provided with to be matched with the multitube dock quick plug male end (13)
Multitube dock quick plug female end；The PLC controller (7) connect with the feeder (9) electric signal.
7. Switch product modular functional test machine according to claim 1, it is characterised in that：On the rack (1) also
It is provided with industrial PC (6)；The test specification and test program of the switch product (5) are stored in the industrial PC (6)；
The industrial PC (6) connect with the PLC controller (7) electric signal；The industrial PC (6) receives the PLC controller
(7) detection data simultaneously judges whether the switch product (5) complies with standard.
8. Switch product modular functional test machine according to claim 7, it is characterised in that：On the rack (1) also
It is provided with alarm (8)；The alarm (8) connect with the PLC controller (7) electric signal；The industrial PC (6) receives
The detection data of the PLC controller (7) will determine that obtain do not meet signal transmission give the PLC controller (7), it is described
PLC controller (7) controls alarm (8) work.
9. Switch product modular functional test machine according to claim 8, it is characterised in that：Alarm (8) packet
Include buzzer and indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312619.XU CN207908645U (en) | 2018-03-07 | 2018-03-07 | A kind of Switch product modular functional test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312619.XU CN207908645U (en) | 2018-03-07 | 2018-03-07 | A kind of Switch product modular functional test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908645U true CN207908645U (en) | 2018-09-25 |
Family
ID=63557891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820312619.XU Active CN207908645U (en) | 2018-03-07 | 2018-03-07 | A kind of Switch product modular functional test machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN207908645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243583A (en) * | 2019-06-28 | 2019-09-17 | 上海工程技术大学 | A kind of aviation push switch test device |
| 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 |
-
2018
- 2018-03-07 CN CN201820312619.XU patent/CN207908645U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243583A (en) * | 2019-06-28 | 2019-09-17 | 上海工程技术大学 | A kind of aviation push switch test device |
| 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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