CN217639395U - Photoelectric sensor synchronism testing device - Google Patents
Photoelectric sensor synchronism testing device Download PDFInfo
- Publication number
- CN217639395U CN217639395U CN202220865745.4U CN202220865745U CN217639395U CN 217639395 U CN217639395 U CN 217639395U CN 202220865745 U CN202220865745 U CN 202220865745U CN 217639395 U CN217639395 U CN 217639395U
- Authority
- CN
- China
- Prior art keywords
- fence
- plate
- fixing shaft
- circuit board
- pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses a photoelectric sensor synchronism testing device, which comprises a working table surface, a circuit board supporting plate and a fence piece, wherein the circuit board supporting plate is provided with a reference plate groove and a tested plate groove which are matched with a reference plate and a tested plate; the circuit board supporting plate is movably arranged on the working table in a guiding way, a probe is arranged on the working table, and on-off signals of each pair of photoelectric sensors are acquired and output to the oscilloscope; a pressing plate is also arranged, and the pressing plate driving mechanism drives the pressing plate to be in a downward pressing working state or an upward lifting non-working state; the pressure plate is provided with a fence mechanism and a fence driving mechanism; when the pressure plate is in a pressing working state, the fence driving mechanism drives the fence fixing shaft to do uniform reciprocating motion to drive the fence piece to do uniform reciprocating motion on the reference plate and the detection areas of the two pairs of photoelectric sensors of the detected plate. The testing device is stable and reliable, and can accurately detect the installation quality and the synchronism quality of the photoelectric sensors on the circuit board, so that the circuit board with qualified synchronism can be screened out in time in the production process.
Description
Technical Field
The utility model relates to a circuit board production facility is expected to relate to a circuit board components and parts check out test set.
Background
With the rapid development of the electronic industry, more and more electrical devices can use various circuit boards, some circuit boards are provided with a plurality of photoelectric sensors, and some circuit boards require high synchronization of photoelectric signals among the photoelectric sensors to realize the functions of the circuit boards. However, in the actual circuit board assembly process, the soldering of the multiple photoelectric sensors cannot stably meet the strict technical requirements, and the synchronization of the photoelectric signals of the multiple photoelectric sensors during operation may have an error exceeding the range due to various reasons.
Due to the characteristics of the semiconductor material, the light emission intensity and the light receiving capability of the photoelectric sensor are slightly different under the same shielding condition, so that the on-off characteristics of each photoelectric sensor are different. Meanwhile, in the process of welding the photoelectric sensors to the PCB, because the Pin feet and the welding holes have tolerance, the center distance between the transmitting end and the receiving end of the two photoelectric sensors on each PCBA cannot be guaranteed to be consistent, so that in actual use, when a fence with a fixed interval size moves in the two photoelectric sensor grooves, the on-off waveforms output by the two photoelectric sensors cannot keep the phase difference within a certain range, and finally, the required precision cannot be achieved in the process of adjusting the whole machine in a combined mode and the whole machine cannot be used directly.
The existing production detection can only detect whether the isolation function between the emitter and the receiver of a single photoelectric sensor is normal, and an effective test means is not available for the synchronism of photoelectric signals in the work of a plurality of photoelectric sensors. Meanwhile, the problem that the synchronization error exceeds the range can not be detected through the conventional quality inspection process, the unqualified products can enter product delivery, use and installation and actual production, and the products are removed after quality problems occur in production and then returned to manufacturers for renovation, so that process waste and waste loss can be caused to terminal manufacturers, and associated loss can be brought to circuit board manufacturers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a reliable and stable photoelectric sensor synchronism testing arrangement is provided, photoelectric sensor's on the circuit board installation quality, synchronism quality can be accurately detected to qualified circuit board can in time be selected in production processes.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a device for testing the synchronism of a photoelectric sensor comprises a working table, a circuit board supporting plate and a fence piece, wherein the circuit board supporting plate is provided with a reference plate groove and a tested plate groove, and the reference plate and the tested plate can be respectively and stably embedded in the reference plate groove and the tested plate groove in a matching manner; the upper surfaces of the reference plate and the measured plate are respectively provided with two pairs of photoelectric sensors, the lower surfaces of the reference plate and the measured plate are provided with metal test points corresponding to the photoelectric sensors, and probe through holes are arranged at the positions, matched with the metal test points, of the bottoms of the reference plate groove and the measured plate groove;
the circuit board supporting plate is arranged on the working table top in a vertically guiding and moving mode through at least three sets of guide posts and guide hole structures, a plurality of reset ejector rods are arranged on the working table top in an elastic supporting mode and in a vertically guiding and moving mode, probes are arranged on the working table top and matched with the metal test points and connected with an oscilloscope, and elastic reset structures are arranged at the bottoms of the probes; when the circuit board supporting plate, the reference plate and the tested plate are pressed and held on the working table, the probes can penetrate through the probe through holes to be stably connected with the metal test points and can output on-off signals of each pair of photoelectric sensors to an oscilloscope; when the down force is removed from the circuit board supporting plate, the circuit board supporting plate is lifted up under the action of the reset ejector rod, so that the probe is disconnected from the metal test point;
the pressing plate is arranged above the circuit board supporting plate in a manner of up-and-down guiding movement through at least three guiding upright posts; a plurality of pressing rods are fixedly arranged on the lower plane of the pressing plate;
the pressing plate is in transmission connection with a pressing plate driving mechanism, and is driven to be in a downward pressing working state or an upward lifting non-working state under the action of the pressing plate driving mechanism; when the pressing plate is in a pressing working state, the pressing rods are matched and pressed on the circuit board supporting plate and the embedded reference plate and the embedded detected plate, the reference plate and the detected plate are stably pressed in the reference plate groove and the detected plate groove, and the circuit board supporting plate is stably pressed on the working table;
the pressure plate is provided with a fence mechanism and a fence driving mechanism; the fence mechanism is arranged on the lower plane of the pressing plate and comprises a first fence piece, a second fence piece and a fence fixing shaft, fence structures of the first fence piece and the second fence piece are completely consistent, the first fence piece and the second fence piece are fixedly arranged on the fence fixing shaft, the fence fixing shaft is sleeved in at least two guide blocks, and the guide blocks are fixedly connected with the lower plane of the pressing plate; the position of the first fence piece is matched with the positions of the two pairs of photoelectric sensors on the reference plate, and the position of the second fence piece is matched with the positions of the two pairs of photoelectric sensors on the measured plate; the fence driving mechanism is fixedly arranged on the pressing plate, the driving end of the fence driving mechanism is in transmission connection with the fence fixing shaft and can drive the fence fixing shaft to do uniform reciprocating motion along the axial direction, when the pressing plate is in a pressing working state, the fence fixing shaft does uniform reciprocating motion along the axial direction to drive the first fence piece to do uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors on the reference plate, and meanwhile, the second fence piece does uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors on the measured plate.
Furthermore, the pressing plate driving mechanism is a crank-slider mechanism and comprises a support, a crank, a connecting rod and a slider connecting rod, the support is fixedly connected with the working platform, one end of the crank is hinged with the support, the other end of the crank is hinged with the connecting rod, the other end of the connecting rod is hinged with the slider connecting rod, and the other end of the slider connecting rod is fixedly connected with the pressing plate; one end of the crank hinged with the connecting rod extends outwards to form an operating handle;
when the pressing plate is pressed down to the right position, the hinging shafts of the crank and the bracket, the hinging shafts of the crank and the connecting rod and the hinging shafts of the connecting rod and the sliding block connecting rod are positioned on the same vertical plane, namely the crank and the connecting rod are in a self-locking state.
Furthermore, a limiting bulge is arranged on the operating handle, when the operating handle is pressed down to the lowest position, the limiting bulge is limited by the connecting rod, and at the moment, the crank and the connecting rod are just in a self-locking state.
Further, the fence driving mechanism is a cam driving mechanism and comprises a cam, a motor, a gear box and a fence return spring;
the cam is arranged at the driving end of the fence fixing shaft in a matching mode, and the fence fixing shaft can be driven to axially move by the rotation of the cam; the cam is driven by a motor and a gear box, the cam is fixedly connected with an output shaft of the gear box, and the gear box is fixedly connected with the pressing plate;
the fence reset spring is sleeved on the fence fixing shaft, one end of the fence reset spring is supported on the guide block, the other end of the fence reset spring and the fence fixing shaft form an elastic support, and when the fence fixing shaft moves away from the driving end, the fence reset spring provides reset elasticity for the fence fixing shaft.
Furthermore, the fence return spring and the fence fixing shaft form an elastic support structure, and one end of the fence return spring is supported on the fixing structure of the first fence piece or the second fence piece and the fence fixing shaft.
Furthermore, a groove is formed in the spiral surface of the cam, and the shape of the groove is matched and matched with that of the driving end of the fence fixing shaft.
The utility model discloses a photoelectric sensor synchronism testing arrangement application method as follows:
1. first, the pressure plate is in a raised non-working state.
2. And embedding and installing the reference plate and the tested plate in the reference plate groove and the tested plate groove of the circuit board supporting plate.
3. And then operating a pressing plate driving mechanism to press the pressing plate in place, stably pressing the circuit board supporting plate, the reference plate and the measured plate at the working position through the pressing rod, and stably connecting the probe with the metal test point to output on-off signals of the corresponding photoelectric sensor to the oscilloscope.
4. And starting the fence driving mechanism to drive the fence fixing shaft to do axial uniform reciprocating motion, wherein the first fence piece and the second fence piece respectively do uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors on the reference plate and the detected plate, and at the moment, the oscilloscope can respectively obtain on-off signals of the four pairs of photoelectric sensors and output waveforms.
5. Whether the installation of the two pairs of photoelectric sensors of the tested plate meets the standard requirements or not can be judged by observing the phase difference of the four output waveforms.
The high level maintaining time and the low level maintaining time in a complete cycle are observed and calculated by comparing the output waveforms of the on-off signals of the two photoelectric sensors on the measured plate, and if the high level maintaining time and the low level maintaining time of the output waveforms of the photoelectric sensors on the measured plate are consistent with the high level maintaining time and the low level maintaining time of the output waveforms of the photoelectric sensors on the reference plate, and the phase difference of the output waveforms of the on-off signals of the two photoelectric sensors on the measured plate is also consistent with the phase difference of the output waveforms of the on-off signals of the two photoelectric sensors on the reference plate, the synchronization of the photoelectric sensors on the measured plate can be judged to be also consistent with the requirements.
The utility model discloses a photoelectric sensor synchronism testing arrangement, set up the circuit board layer board ingeniously, pressing plates, clamp plate actuating mechanism, fence mechanism and fence actuating mechanism, through two blocks of fence pieces respectively at benchmark board and the regional synchronous motion of two pairs of photoelectric sensor test of board under test, acquire break-make signal, thereby whether the installation of observing and judging board photoelectric sensor under test meets the requirements, whether the synchronism meets the requirements, not only realized the accurate quality detection of very first time after like product is taken off the production line, reduce the mistake that the manual work takes place, the installation uniformity has more been guaranteed, when improving efficiency of software testing, working hours are saved, thereby the cost is reduced. Therefore, the circuit boards with qualified synchronism can be screened out in time in the production process.
Drawings
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:
fig. 1 is one of the structural schematic diagrams of the device for testing the synchronization of photoelectric sensors of the present invention, and the fence piece is not located in the detection area of the photoelectric sensor.
Fig. 2 is a second schematic structural diagram of the device for testing synchronization of photoelectric sensors according to the present invention, in which the fence piece moves to the detection area of the photoelectric sensor.
Fig. 3 is a partially enlarged view of a portion a in fig. 1.
Fig. 4 is the third structural schematic diagram of the device for testing the synchronization of photoelectric sensors of the present invention, in which the pressing plate is in the lifting inoperative state, and the guide post is inserted into the guide hole.
Fig. 5 is the fourth of the structure schematic diagram of the device for testing the synchronism of the photoelectric sensor of the present invention, the pressing plate is in the lifting non-working state, the guiding post is separated from the guiding hole, and the circuit board supporting plate can be freely taken out.
Fig. 6 is a schematic structural view of the pressing plate driving mechanism, in which the pressing plate is pressed in a state where the operation handle is pressed.
FIG. 7 is a second schematic view of the pressing plate driving mechanism, in which the pressing plate is lifted up in a state where the operating handle is lifted up.
Fig. 8 is a schematic diagram of an output waveform of a photosensor on-off signal shown on an oscilloscope.
In the figure:
1. worktable 101 and guide hole
2. Circuit board supporting plate 201 and reference plate groove
202. Tested board groove 203 and probe through hole
3. Reference plate 4 and measured plate
5. Photoelectric sensor 6, guide post
7. Reset ejector rod 8 and probe
9. Pressing plate 10 and guide upright post
11. Pressing rod 12 and bracket
13. Crank 1301, operating handle
13011. Limiting bulge 14 and connecting rod
15. Slide block connecting rod 16 and first fence piece
17. Second fence piece 18 and fence fixing shaft
19. Guide block 20, cam
2001. Groove 21 and motor
22. Gear box 23 and fence return spring
Detailed Description
The invention is described in further detail below with reference to the following figures and examples:
FIG. 1 shows a device for testing the synchronization of photoelectric sensors, which comprises a worktable 1, a circuit board supporting plate 2 and fence pieces, wherein the circuit board supporting plate 2 is provided with a reference plate groove 201 and a tested plate groove 202, and a reference plate 3 and a tested plate 4 can be respectively and stably embedded in the reference plate groove 201 and the tested plate groove 202 in a matching manner; the upper surfaces of the reference plate 3 and the measured plate 4 are respectively provided with two pairs of photoelectric sensors 5, the lower surfaces of the reference plate 3 and the measured plate 4 are provided with metal test points corresponding to the photoelectric sensors 5, and probe through holes 203 are arranged at the positions, matched with the metal test points, of the bottoms of the reference plate groove 201 and the measured plate groove 202.
Circuit board layer board 2 sets up on table surface 1 through four sets of guide post 6 and guiding hole 101 structures of four angles of branch row with the removal of leading from top to bottom (guide post 6 and guiding hole 101 structure also can set up three sets or other sets of numbers), and table surface 1 goes up the elastic support ground and can be provided with a plurality of ejector pins 7 that reset with the removal of leading from top to bottom, and its structure is: the position of the working table surface matched with the reset ejector rod is provided with a reset ejector rod hole, the bottom of the reset ejector rod hole is provided with an ejector rod reset spring, and the lower end of the reset ejector rod 7 is supported on the ejector rod reset spring.
A probe 8 is arranged on the working table top 1 in a matching manner with the metal test point, the probe 8 is connected with an oscilloscope, and the bottom of the probe 8 is provided with an elastic reset structure; the structure is as follows: a probe hole is formed in the position, matched with the probe 8, of the working table, a probe return spring is arranged at the bottom of the probe hole, and the lower end of the probe 8 is supported on the probe return spring.
When the circuit board supporting plate 2, the reference plate 3 and the tested plate 4 are pressed and held on the working table top 1, the probes 8 can penetrate through the probe through holes 203 to be stably connected with the metal test points and can output on-off signals of each pair of the photoelectric sensors 5 to an oscilloscope, as shown in fig. 1 and 2; when the downward pressure on the circuit board supporting plate 2 is removed, the circuit board supporting plate 2 is lifted up under the action of the reset ejector rod 7, so that the probe 8 is disconnected from the metal test point; as shown in fig. 3 and 4.
The testing device is also provided with a pressing plate 9, the pressing plate 9 is arranged above the circuit board supporting plate 2 through four guide upright posts 10 in a vertically guiding and moving manner, and the guide upright posts 10 can also be provided with three or five or the like; the lower plane of the pressing plate 9 is fixedly provided with a plurality of pressing rods 11.
The pressing plate 9 is in transmission connection with a pressing plate driving mechanism, and the pressing plate 9 is driven to be in a downward pressing working state or an upward lifting non-working state under the action of the pressing plate driving mechanism; when the pressing plate 9 is in a downward pressing working state, the pressing rods 11 are matched and pressed on the circuit board supporting plate 2 and the embedded reference plate 3 and the tested plate 4, so that the reference plate 3 and the tested plate 4 are stably pressed in the reference plate groove 201 and the tested plate groove 202, and the circuit board supporting plate 2 is stably pressed on the working table surface 1.
The pressing plate driving mechanism is a crank-slider mechanism and comprises a support 12, a crank 13, a connecting rod 14 and a slider connecting rod 15, the support 12 is fixedly connected with the working platform 1, one end of the crank 13 is hinged with the support 1, the other end of the crank is hinged with the connecting rod 14, the other end of the connecting rod 14 is hinged with the slider connecting rod 15, and the other end of the slider connecting rod 15 is fixedly connected with the pressing plate 9; one end of the crank 13 hinged to the connecting rod 14 extends outwards to form an operating handle 1301. When the pressing plate 9 is pressed down to the right position, the hinge axes of the crank 13 and the bracket 12, the hinge axes of the crank 13 and the connecting rod 14, and the hinge axes of the connecting rod 14 and the slider connecting rod 15 are on the same vertical plane, that is, the crank and the connecting rod are in a self-locking state, as shown in fig. 6. A limiting protrusion 13011 is arranged on the operating handle 1301, when the operating handle 1301 is pressed down to the lowest position, the limiting protrusion 13011 is limited by the connecting rod 14, and at this time, the crank 13 and the connecting rod 14 are just in a self-locking state. The pressure plate driving mechanism can also be a gear, rack or screw driving mechanism, and the driving mechanism can be manual or electric; the pressing plate driving mechanism can also be a conventional pneumatic or hydraulic driving mechanism, as long as the pressing plate 9 can be driven to switch between a pressing-down working state and a lifting-up non-working state through the action of the pressing plate driving mechanism.
The pressure plate 9 is provided with a fence mechanism and a fence driving mechanism; the fence mechanism is arranged on the lower plane of the pressing plate 9 and comprises a first fence piece 16, a second fence piece 17 and a fence fixing shaft 18, fence structures of the first fence piece 16 and the second fence piece 17 are completely consistent, the first fence piece 16 and the second fence piece 17 are fixedly arranged on the fence fixing shaft 18, the fence fixing shaft 18 is sleeved in three guide blocks 19, and the guide blocks 19 are fixedly connected with the lower plane of the pressing plate 9 (the number of the guide blocks 19 can be two or other numbers, so long as the fence fixing shaft 18 can be ensured to stably move along the axial direction). The position of the first fence piece 16 is matched with the positions of the two pairs of photoelectric sensors 5 on the reference plate 3, and the position of the second fence piece 17 is matched with the positions of the two pairs of photoelectric sensors 5 on the measured plate 4. The fence driving mechanism is fixedly arranged on the pressing plate 9, and the driving end of the fence driving mechanism is in transmission connection with the fence fixing shaft 18 and can drive the fence fixing shaft 18 to do uniform reciprocating motion along the axial direction; when the pressing plate 9 is in a pressing working state, the fence fixing shaft 18 makes a uniform reciprocating motion along the axial direction to drive the first fence piece 16 to make a uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors 5 on the reference plate 3, and simultaneously the second fence piece 17 makes a uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors 5 on the measured plate 4.
The fence driving mechanism is a cam driving mechanism and comprises a cam 20, a motor 21, a gear box 22 and a fence return spring 23.
The cam 20 is arranged at the driving end of the fence fixing shaft 18 in a matching manner, the fence fixing shaft 18 can be driven to move axially by the rotation of the cam 20, a groove 2001 is arranged on the spiral surface of the cam 20, and the shape of the groove 2001 is matched and matched with that of the driving end of the fence fixing shaft, so that the cam 20 can drive the fence fixing shaft 18 more stably. The cam 20 is driven by a motor 21 and a gear box 22, the gear box 22 is fixedly arranged on the upper plane of the pressure plate 9, and an output shaft of the gear box 22 penetrates through the pressure plate 9 and is fixedly connected with the cam 20.
The fence return spring 23 is sleeved on the fence fixing shaft 18, one end of the fence return spring is supported on the guide block 19, the other end of the fence return spring is supported on a fixing structure of the upper end of the second fence piece 17 and the fence fixing shaft 18, and when the fence fixing shaft 18 moves far away from the driving end, the fence return spring provides return elastic force for the fence fixing shaft 18.
The fence return spring 23 may have one end supported on the guide block 19 and the other end supported on a protruding structure of the fence fixing shaft 18, as long as the other end and the fence fixing shaft 18 form an elastic support.
Besides the cam driving mechanism, the barrier driving mechanism may also be other conventional driving mechanisms, such as a pneumatic driving mechanism or a magnetic driving mechanism, as long as the barrier fixing shaft 18 can be driven to reciprocate along the axial direction at a uniform speed.
Utilize the utility model discloses a photoelectric sensor synchronism testing arrangement can be through first, second fence piece 16, 17 at benchmark board 3 and the detection area synchronous motion of being surveyed two pairs of photoelectric sensor 5 on board 4, obtains four in oscilloscope to photoelectric sensor 5's break-make signal, and the output waveform is as shown in fig. 8. Whether the installation of the two pairs of photoelectric sensors 5 of the tested plate meets the standard requirements can be judged by observing the phase difference of the four output waveforms.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a photoelectric sensor synchronism testing arrangement, includes table surface, circuit board layer board and fence piece, its characterized in that: the circuit board supporting plate is provided with a reference plate groove and a tested plate groove, and the reference plate and the tested plate can be respectively and stably embedded in the reference plate groove and the tested plate groove in a matching manner; the upper surfaces of the reference plate and the tested plate are respectively provided with two pairs of photoelectric sensors, the lower surfaces of the reference plate and the tested plate are provided with metal test points corresponding to the photoelectric sensors, and probe through holes are arranged at the positions, matched with the metal test points, of the bottoms of the reference plate groove and the tested plate groove;
the circuit board supporting plate is arranged on the working table top in a vertically guiding and moving mode through at least three sets of guide posts and guide hole structures, a plurality of reset ejector rods are arranged on the working table top in an elastic supporting mode and in a vertically guiding and moving mode, probes are arranged on the working table top and matched with the metal test points and connected with an oscilloscope, and elastic reset structures are arranged at the bottoms of the probes; when the circuit board supporting plate, the reference plate and the tested plate are pressed and held on the workbench surface, the probes can penetrate through the probe through holes to be stably connected with the metal test points and can output on-off signals of each pair of photoelectric sensors to an oscilloscope; when the downward pressure on the circuit board supporting plate is removed, the circuit board supporting plate is lifted up under the action of the reset ejector rod, so that the probe is disconnected from the metal test point;
the pressing plate is arranged above the circuit board supporting plate in a manner of up-and-down guiding movement through at least three guiding upright posts; a plurality of pressing rods are fixedly arranged on the lower plane of the pressing plate;
the pressing plate is in transmission connection with a pressing plate driving mechanism, and the pressing plate is driven to be in a downward pressing working state or an upward lifting non-working state under the action of the pressing plate driving mechanism; when the pressing plate is in a downward pressing working state, the pressing rods are matched and pressed on the circuit board supporting plate and the embedded reference plate and the embedded measured plate, the reference plate and the measured plate are stably pressed in the reference plate groove and the measured plate groove, and the circuit board supporting plate is stably pressed on the working table;
the pressure plate is provided with a fence mechanism and a fence driving mechanism; the fence mechanism is arranged on the lower plane of the pressing plate and comprises a first fence piece, a second fence piece and a fence fixing shaft, the fence structures of the first fence piece and the second fence piece are completely consistent, the first fence piece and the second fence piece are fixedly arranged on the fence fixing shaft, the fence fixing shaft is sleeved in at least two guide blocks, and the guide blocks are fixedly connected with the lower plane of the pressing plate; the position of the first fence piece is matched with the positions of the two pairs of photoelectric sensors on the reference plate, and the position of the second fence piece is matched with the positions of the two pairs of photoelectric sensors on the measured plate; the fence driving mechanism is fixedly arranged on the pressing plate, the driving end of the fence driving mechanism is in transmission connection with the fence fixing shaft and can drive the fence fixing shaft to do uniform reciprocating motion along the axial direction, when the pressing plate is in a pressing working state, the fence fixing shaft does uniform reciprocating motion along the axial direction to drive the first fence piece to do uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors on the reference plate, and meanwhile, the second fence piece does uniform reciprocating motion in the detection areas of the two pairs of photoelectric sensors on the measured plate.
2. The test device of claim 1, wherein: the pressing plate driving mechanism is a crank-slider mechanism and comprises a support, a crank, a connecting rod and a slider connecting rod, the support is fixedly connected with the working platform, one end of the crank is hinged with the support, the other end of the crank is hinged with the connecting rod, the other end of the connecting rod is hinged with the slider connecting rod, and the other end of the slider connecting rod is fixedly connected with the pressing plate; one end of the crank hinged with the connecting rod extends outwards to form an operating handle;
when the pressing plate is pressed down to the right position, the hinged shafts of the crank and the bracket, the hinged shafts of the crank and the connecting rod and the hinged shafts of the connecting rod and the sliding block connecting rod are positioned on the same vertical plane, namely the crank and the connecting rod are in a self-locking state.
3. The test device of claim 2, wherein: the operating handle is provided with a limiting bulge, when the operating handle is pressed to the lowest position, the limiting bulge leans against the connecting rod for limiting, and at the moment, the crank and the connecting rod are just in a self-locking state.
4. A test device according to any one of claims 1 to 3, wherein: the fence driving mechanism is a cam driving mechanism and comprises a cam, a motor, a gear box and a fence return spring;
the cam is arranged at the driving end of the fence fixing shaft in a matching mode, and the fence fixing shaft can be driven to axially move by the rotation of the cam; the cam is driven by a motor and a gear box, the cam is fixedly connected with an output shaft of the gear box, and the gear box is fixedly connected with the pressing plate;
the fence reset spring is sleeved on the fence fixing shaft, one end of the fence reset spring is supported on the guide block, the other end of the fence reset spring and the fence fixing shaft form an elastic support, and when the fence fixing shaft moves away from the driving end, the fence reset spring provides reset elasticity for the fence fixing shaft.
5. The test device of claim 4, wherein: the structure that the fence return spring and the fence fixing shaft form elastic support is that one end of the fence return spring is supported on the fixing structure of the first fence piece or the second fence piece and the fence fixing shaft.
6. The test device of claim 4, wherein: and a groove is formed in the spiral surface of the cam and matched with the shape of the driving end of the fence fixing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865745.4U CN217639395U (en) | 2022-04-13 | 2022-04-13 | Photoelectric sensor synchronism testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865745.4U CN217639395U (en) | 2022-04-13 | 2022-04-13 | Photoelectric sensor synchronism testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217639395U true CN217639395U (en) | 2022-10-21 |
Family
ID=83647640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220865745.4U Active CN217639395U (en) | 2022-04-13 | 2022-04-13 | Photoelectric sensor synchronism testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217639395U (en) |
-
2022
- 2022-04-13 CN CN202220865745.4U patent/CN217639395U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112098435A (en) | Automatic detection equipment and visual calibration detection method | |
| CN212808355U (en) | Automatic high-precision multi-station testing equipment | |
| CN104280398A (en) | Electronic component automatic testing device | |
| CN217007585U (en) | Improve flying probe testing arrangement of location needle inserting precision | |
| CN112161558B (en) | Automatic detection system for probe stroke | |
| CN213658609U (en) | Automatic detection equipment | |
| CN111551841B (en) | Automatic ICT testing arrangement | |
| CN117092577B (en) | Multi-performance full-flow automatic test method, system and device for probe card | |
| WO2006030573A1 (en) | Circuit board inspecting apparatus | |
| CN217639395U (en) | Photoelectric sensor synchronism testing device | |
| CN113253100A (en) | Testing device and detection system | |
| CN204044282U (en) | A kind of proving installation of pcb board | |
| CN219349060U (en) | PCBA testing device | |
| CN208270714U (en) | Test marking machine with barcode scanning device | |
| CN107728041B (en) | Electronic circuit board electric property detection device | |
| CN215813193U (en) | Testing device for PCB | |
| CN215526029U (en) | Pogo Pin board check out test set | |
| CN114646868A (en) | Intelligent test needle mold equipment for FPC performance test | |
| CN108037443B (en) | Test marking machine with code scanning device | |
| CN213517437U (en) | Mixed-voltage circuit board electrical property detection device | |
| CN212433334U (en) | Power circuit board test fixture | |
| CN208270716U (en) | Convertible chip with barcode scanning device detects jig | |
| CN219831303U (en) | Floor-cleaning machine circuit board testing arrangement | |
| CN212207588U (en) | Floating mechanism for protecting probe | |
| CN220795412U (en) | PCB key switch detecting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |