CN212568891U

CN212568891U - Device applied to automatic contraction of flying probe tester during power failure

Info

Publication number: CN212568891U
Application number: CN202020961328.0U
Authority: CN
Inventors: 王贵亚; 陈李军; 孙连芳; 汪勤; 王跃
Original assignee: HANGZHOU WIDE LASER CO LTD
Current assignee: HANGZHOU WIDE LASER CO LTD
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-19
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a be applied to device of automatic shrink when flying needle test machine probe outage, include the support, install guide rail sliding block set on the support and be used for the drive the gliding drive arrangement of guide rail sliding block set, guide rail sliding block set's slider with install the spring between the support, the probe is installed on guide rail sliding block set's the slider. The utility model discloses add a spring on slider and support, can utilize the pulling force of spring to pull back the probe when the outage to solve current flying needle machine and in the twinkling of an eye unable automatic problem of pulling back the probe syringe needle at the outage, and then avoided the syringe needle fish tail to survey test panel, damage the probe syringe needle.

Description

Device applied to automatic contraction of flying probe tester during power failure

Technical Field

The utility model relates to an electronic circuit board test field, specifically speaking relates to a device of automatic shrink when being applied to flying probe test machine probe outage.

Background

The flying probe tester is used for testing circuit boards and mainly testing the insulation and conduction values of a circuit board network. The flying probe tester tests conduction and insulation by contacting the probe with the test pad.

With more and more electric devices, especially in hot summer days, sudden power failure is also a frequent event. When the current flying probe machine is suddenly powered off in the operation process, the probe cannot automatically shrink, and if the probe is just in the through hole, the test circuit board and the probe are certainly scratched in the falling process of the Z axis. The utility model discloses can solve this problem, increase the life of probe, practice thrift the cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to device of flying automatic shrink when needle test machine probe outage to solve present flying needle machine when the outage suddenly in-process, the problem that the probe can not shrink automatically.

In order to achieve the above object, the embodiment of the present invention adopts the following scheme: the device comprises a support, a guide rail sliding block assembly arranged on the support and a driving device used for driving the guide rail sliding block assembly to slide, wherein a spring is arranged between a sliding block of the guide rail sliding block assembly and the support, and a probe is arranged on the sliding block of the guide rail sliding block assembly.

Further, drive arrangement includes motor controller, servo motor, action wheel, follows driving wheel, hold-in range, the action wheel is installed in servo motor's the pivot, it connects to rotate from the driving wheel on the support, the action wheel with follow the installation between the driving wheel the hold-in range, servo motor with the motor controller electricity is connected, guide rail sliding block set's slider with hold-in range fixed connection.

Further, the probe is installed on a probe seat, and the probe seat is fixed on a sliding block of the guide rail sliding block assembly.

Further, the spring is always in tension.

Further, still include induction system, induction system including install sensor piece on the slider, be used for with first photoelectric sensor of sensor piece coupling response and be used for with the second photoelectric sensor of sensor piece coupling response, first photoelectric sensor is located the spring begins to take place deformation department, second photoelectric sensor is located and is less than the biggest deformation department of spring, first photoelectric sensor and second photoelectric sensor all with the machine controller electricity is connected.

The sensor further comprises a sensing device, the sensing device further comprises a third photoelectric sensor used for being coupled and sensed with the sensor sheet, the third photoelectric sensor is a zero position sensor, the initial position of the probe is detected, and the third photoelectric sensor is electrically connected with the motor controller.

Further, the first photosensor, the second photosensor and the third photosensor are on the same horizontal line.

Furthermore, the first photoelectric sensor, the second photoelectric sensor and the third photoelectric sensor all adopt groove-type photoelectric sensors.

According to above technical scheme, add a spring on slider and support, can utilize the pulling force of spring to pull back the probe when the outage to solved current flying the needle machine and can't pull back the problem of probe syringe needle automatically in the twinkling of an eye at the outage, and then avoided the syringe needle fish tail to survey test panel, damage the probe syringe needle.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

wherein the figures include the following reference numerals:

the device comprises a support 1, a guide rail sliding block assembly 2, a spring 3, a probe 4, a servo motor 5, a driving wheel 6, a driven wheel 7, a synchronous belt 8, a probe seat 9, a sensor sheet 10, a first photoelectric sensor 11, a second photoelectric sensor 12, a third photoelectric sensor 13, a sliding block 21 and a guide rail 22.

Detailed Description

In order to illustrate the invention more clearly, the device of the invention will be further described with reference to the following examples and drawings, but the scope of the invention is not limited thereto.

As shown in fig. 1, the utility model provides a be applied to automatic device that contracts when flying needle test machine probe outage, include support 1, install guide rail sliding block set 2 on the support 1 and be used for the drive the gliding drive arrangement of guide rail sliding block set 2, guide rail sliding block set 2's slider 21 with install spring 3 between the support 1, install probe 4 on guide rail sliding block set 2's the slider 21.

In this embodiment, the support 1 is a fixed component, and may be a plate, the guide rail slider assembly 2 is composed of a slider 21 and a guide rail 22, and the guide rail slider assembly 2 is used to reduce friction, wherein the guide rail 22 is fixedly installed on the support 1, and the slider 21 can slide on the guide rail 22 through a driving device.

In this embodiment, drive arrangement includes motor controller, servo motor 5, action wheel 6, follows driving wheel 7, hold-in

range

8, 5 pedestal mounting of servo motor is in on the support 1, action wheel 6 is installed in servo motor 5's the pivot, it connects to rotate from driving wheel 7 on the support 1, action wheel 6 and follow installation between driving wheel 7 hold-in range 8, servo motor 5 with the motor controller electricity is connected, and motor controller control servo motor 5 start, stop, corotation, reversal, guide rail sliding block set 2's slider 21 with hold-in range 8 fixed connection transmits drive power to slider 21 through hold-in range 8 on. When the power is off, the servo motor is powerless to return to zero, the tension of the spring enables the probe to automatically return to the zero position, the tested circuit board and the probe head cannot be damaged, the probe is protected, the service life of the probe is prolonged, and the cost is saved. A servo motor is used, and the servo motor has the characteristics of strong overload resistance, small rotational inertia and the like.

In this embodiment, the probe 4 is installed on a probe seat 9, and the probe seat 9 is fixed on a slide block 21 of the guide rail slide block assembly 2.

In this embodiment, the spring 3 is always in a stretched state.

In this embodiment, still include induction system, induction system is including installing sensor piece 10 on the slider 21, be used for with first photoelectric sensor 11 of sensor piece 10 coupling response and be used for with second photoelectric sensor 12 of sensor piece 10 coupling response, first photoelectric sensor 11 is located spring 3 begins to take place deformation department, second photoelectric sensor 12 is located and is less than spring 3's maximum deformation department, has just so guaranteed spring 3 and has worked safe tensile state all the time, first photoelectric sensor 11 and second photoelectric sensor 12 all with the machine controller electricity is connected.

In this embodiment, the sensor further includes a sensing device, the sensing device further includes a third photoelectric sensor 13 for coupling and sensing with the sensor sheet 10, the third photoelectric sensor 13 is a zero sensor and is used for detecting an initial position of the probe 4, and the third photoelectric sensor 13 is electrically connected to the motor controller.

In the present embodiment, the first photosensor 11, the second photosensor 12, and the third photosensor 13 are on the same horizontal line.

In the present embodiment, the first photosensor 11, the second photosensor 12, and the third photosensor 13 are all groove-type photosensors, but the invention is not limited thereto; the height of the sensor plate 10 is exactly the same as the sensing slot of the photo sensor.

The working principle of the utility model is as follows: motor controller drive servo motor 5 rotates, thereby make the hold-in range 8 of installing between action wheel 6 and follow driving wheel 7 rotate, hold-in range 8 drives the motion of slider 21, fix the device on slider 21 and move together, shelter from when first photoelectric sensor 11 when sensor piece 10, first photoelectric sensor 11 feeds back detection signal and gives servo motor 5 controller, servo motor 5 does not accept probe 4 and retreats the motion instruction this moment, when second photoelectric sensor 12 is sheltered from, second photoelectric sensor 12 feeds back detection signal and gives servo motor 5 controller, servo motor 5 controller is not accepting the motor and advances the motion instruction, make spring 3 be in safe elastic deformation state always. When the power is cut off suddenly, the spring 3 in elastic deformation pulls the sliding block 21 and the probe 4 fixed on the sliding block 21 back, so that the probe 4 leaves the test circuit board, and the damage to the circuit board due to the scratch of the needle head which is lowered under the action of gravity is avoided. The utility model provides a current flying probe machine can't pull back 4 syringe needles of probe automatically in the twinkling of an eye at the outage, lead to the syringe needle fish tail to survey test panel, damage the problem of 4 syringe needles of probe. And the problem of the forward and reverse movement of the Z axis is solved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The device is characterized by comprising a support, a guide rail sliding block assembly arranged on the support and a driving device used for driving the guide rail sliding block assembly to slide, wherein a spring is arranged between a sliding block of the guide rail sliding block assembly and the support, and a probe is arranged on the sliding block of the guide rail sliding block assembly.

2. The device as claimed in claim 1, wherein the driving device comprises a motor controller, a servo motor, a driving wheel, a driven wheel and a synchronous belt, the driving wheel is mounted on a rotating shaft of the servo motor, the driven wheel is rotatably connected to the bracket, the synchronous belt is mounted between the driving wheel and the driven wheel, the servo motor is electrically connected with the motor controller, and a sliding block of the guide rail sliding block assembly is fixedly connected with the synchronous belt.

3. The apparatus of claim 1, wherein the probe is mounted on a probe mount that is secured to a slide of the rail slide assembly.

4. The device of claim 1, wherein the spring is always in tension.

5. The device of claim 2, further comprising a sensing device, wherein the sensing device comprises a sensor plate mounted on the slider, a first photosensor for coupling sensing with the sensor plate, and a second photosensor for coupling sensing with the sensor plate, the first photosensor is located where the spring begins to deform, the second photosensor is located at a position less than a maximum deformation of the spring, and the first photosensor and second photosensors are both electrically connected to the motor controller.

6. The device of claim 5, further comprising a sensing device, the sensing device further comprising a third photosensor for sensing coupling with the sensor plate, the third photosensor being a null sensor that detects an initial position of a probe, the third photosensor being electrically connected to the motor controller.

7. The apparatus of claim 6, wherein the first photosensor, the second photosensor, and the third photosensor are on a same horizontal line.

8. The apparatus of claim 6, wherein the first, second and third photosensors are groove photosensors.