CN216309768U

CN216309768U - Detection device

Info

Publication number: CN216309768U
Application number: CN202122300867.7U
Authority: CN
Inventors: 郑嘉瑞; 王赵良; 谭玄; 赵从高; 鲁志立; 唐勇国; 梁树强
Original assignee: Dongguan Lianpeng Intelligent Equipment Co ltd
Current assignee: Dongguan Lianpeng Intelligent Equipment Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-15
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to a detection device, comprising: a frame; the bearing mechanism comprises a rotating plate and a jig, the rotating plate is rotatably connected with the rack and is provided with a first station and a second station, and the jig is arranged on the first station and the second station and is used for bearing a workpiece. And the detection mechanism is arranged on the rack, and can alternately detect the workpieces in the jigs positioned at the first station and the second station when the rotating plate rotates. Therefore, in the process of detecting the workpiece at the first station in the test area, the time of the process can be fully utilized to place the workpiece in the jig at the second station. After the workpiece at the first station is detected, the workpiece at the second station can be rotated to the test area for rapid detection. Therefore, the waiting time of the detection mechanism between the detection of two adjacent workpieces is effectively reduced or even eliminated, and the detection efficiency is finally improved.

Description

Detection device

Technical Field

The utility model relates to the technical field of mechanical tools, in particular to a detection device.

Background

The detection device plays a very critical role in the production and manufacturing of the display screen, and the detection device can detect the picture defects of the processed display screen, so that the defects can be found in time, and the defective display screen is prevented from flowing into the next installation procedure, thereby improving the assembly efficiency. When the type of the display screen changes, the model of the display screen also changes. For the traditional detection device, when the display screens of different models are detected, the switching process of the two display screens of different models takes a large amount of time, so that the number of the display screens detected by the detection device in unit time is small, and the detection efficiency of the detection device is finally influenced.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem of how to improve the detection efficiency of the detection device.

A detection device, comprising:

a frame;

the bearing mechanism comprises a rotating plate and a jig, the rotating plate is rotatably connected with the rack and is provided with a first station and a second station, and the jig is arranged on the first station and the second station and is used for bearing a workpiece; and

the detection mechanism is arranged on the rack, and when the rotating plate rotates, the detection mechanism can alternately detect the workpieces in the jigs positioned at the first station and the second station.

In one embodiment, the jig is detachably connected with the rotating plate, and the detection mechanism can alternately detect the workpiece when the rotating plate rotates 180 degrees each time.

In one embodiment, the detection mechanism comprises a support, a linear module and a front-view camera, the support is convexly arranged on the rack, the linear module is fixed on the support, the front-view camera is arranged on the linear module, the linear module drives the front-view camera to slide relative to the support to be far away from or close to the rotating plate, and the front-view camera is used for collecting images in a direction vertical to the display plane of the workpiece.

In one embodiment, the detection mechanism further comprises an oblique-view camera fixed to the support, the oblique-view camera being configured to capture images at an acute angle to the workpiece display plane.

In one embodiment, the detection mechanism further comprises a static removing ion wind rod, the static removing ion wind rod is fixed on the support, and the static removing ion wind rod is used for removing dust on the workpiece.

In one embodiment, the jig comprises a substrate and a plurality of positioning assemblies, the substrate is used for bearing a workpiece and is detachably connected with the rotating plate, the plurality of positioning assemblies comprise a driver and a plurality of positioning columns, the driver is fixed on the substrate, the positioning columns are connected with the substrate in a sliding mode, the driver drives the positioning columns to slide to press against the workpiece, and the positioning columns of the plurality of positioning assemblies are used for exerting pressing force along the length direction and the width direction of the workpiece.

In one embodiment, the jig comprises a first side light assembly and a second side light assembly, the first side light assembly and the second side light assembly are arranged around a workpiece, the number of the first side light assemblies is two, the two first side light assemblies extend in the width direction of the workpiece and are arranged at intervals, and the second side light assembly is located between one ends of the two first side light assemblies.

In one embodiment, the jig further comprises a lighting assembly, the lighting assembly is located between the other ends of the two first side light assemblies, the lighting assembly comprises a movable plate, a fixed plate, a pin and a power source, the movable plate is slidably connected with the fixed plate, the power source is connected with the fixed plate and drives the movable plate to slide, and the pin is fixed on the movable plate and used for being matched with a workpiece.

In one embodiment, the fixing plate is provided with a vacuum absorption hole, and the vacuum absorption hole can form vacuum to fix the workpiece.

In one embodiment, at least one of the following schemes is further included:

the dust remover comprises a frame, a dust collector, a backlight source and a dust remover, wherein the frame is used for supporting a workpiece;

the rotary table further comprises a driving motor, the driving motor is arranged on the rack and connected with the rotary plate, and the driving motor drives the rotary plate to rotate.

One technical effect of one embodiment of the utility model is that: in view of the fact that the detection mechanism can alternately detect the workpieces in the jigs positioned at the first station and the second station, the time of the process can be fully utilized to place the workpieces in the jigs positioned at the second station in the process of detecting the workpieces at the first station in the test area. After the workpiece at the first station is detected, the workpiece at the second station can be rotated to the test area for rapid detection. Therefore, after the previous workpiece is detected, the detection mechanism can detect the next workpiece immediately without waiting in view of the fact that the next workpiece is completely ready, so that the waiting time of the detection mechanism between the detection of two adjacent workpieces is effectively reduced or even eliminated, and the detection efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a detection apparatus according to an embodiment;

FIG. 2 is a schematic view of a portion of the detecting device shown in FIG. 1;

FIG. 3 is a side view of the structure of FIG. 2;

FIG. 4 is a schematic perspective view of a supporting mechanism of the detecting device shown in FIG. 1;

fig. 5 is a schematic perspective view of a jig in the carrying mechanism shown in fig. 4;

fig. 6 is a schematic perspective view of the lighting assembly in the jig shown in fig. 5;

fig. 7 is a schematic perspective view of a positioning assembly in the jig shown in fig. 5;

FIG. 8 is a schematic top view of a portion of the first station of the rotating plate of FIG. 2 in a testing area;

fig. 9 is a schematic top view of a portion of the second station of the rotary plate of fig. 2 in a testing area.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, fig. 2 and fig. 3, an inspection apparatus 10 according to an embodiment of the present invention is used for inspecting a workpiece such as a display screen to detect whether a display image of the display screen has defects, such as bright spots, dark spots, line defects or spots. The inspection apparatus 10 includes a main body casing 110, a chassis 120, a backlight 130, a dust collector 140, a driving motor 150, a carrying mechanism 200, and an inspection mechanism 300. The chassis 120, the backlight 130, the dust collector 140, the driving motor 150, the carrying mechanism 200, and the detection mechanism 300 may be disposed in the main body case 110, so that the main body case 110 protects the main body case.

Referring to fig. 2, 3 and 4, in some embodiments, the supporting mechanism 200 includes a rotating plate 210 and a fixture 220, the driving motor 150 is disposed on the frame 120, the rotating plate 210 is rotatably connected to the frame 120, and the driving motor 150 is configured to drive the rotating plate 210 to rotate. The rotating plate 210 is provided with a first station 211 and a second station 212, the first station 211 and the second station 212 are used for placing a jig 220, and the jig 220 is used for bearing a workpiece.

Referring to fig. 2 and 3, in some embodiments, the detection mechanism 300 includes a support 310, a linear module 320, a front view camera 330, a squint camera 340, a static-removing ion wind bar 350, and a focus adjuster 360. The support 310 is vertically disposed, that is, the support 310 extends substantially in a vertical direction, and the support 310 is protrudingly disposed on the frame 120, that is, a lower end of the support 310 is fixed on the frame 120, and an upper end of the support 310 is protruded to a certain height relative to the frame 120. The linear module 320 is fixed on the support 310, the front view camera 330 is disposed on the linear module 320, and the linear module 320 can drive the front view camera 330 to perform reciprocating linear motion in a vertical direction, so that the front view camera 330 moves away from or close to the rotating plate 210. The front-view camera 330 is used for capturing images along a direction perpendicular to the display plane of the workpiece, and in a popular way, the front-view camera 330 is used for photographing the display plane of the workpiece from the front-view direction. When the front-view camera 330 moves relative to the rotating plate 210, the vertical distance of the front-view camera 330 relative to different types of workpieces can be adjusted, so as to adjust the detection fields of the front-view camera 330 for different types of workpieces. A focus adjuster 360 is disposed on the support 310 and connected to the front-view camera 330, and the focus adjuster 360 can drive relevant components of the front-view camera 330 to move so as to adjust the focus of the front-view camera 330, so as to further adjust the inspection views of different types of workpieces by the front-view camera 330. When the front-view camera 330 photographs the workpiece display screen to form a captured image, the captured image may be compared with a standard image to determine whether the display screen has defects in the front-view direction, such as bright spots, dark spots, or line defects.

An oblique view camera 340 is secured to the support 310, the oblique view camera 340 being adapted to capture images at an acute angle to the workpiece display plane. In general, the oblique-view camera 340 obliquely views the display plane of the workpiece to photograph the display screen of the workpiece from the oblique-view direction. When the oblique-view camera 340 photographs the workpiece display screen to form a captured image, the captured image may be compared with a standard image to determine whether the display screen has mura defects in the oblique-view direction of spots or the like.

The static electricity removing ion wind bar 350 is fixed on the support 310, and the static electricity removing ion wind bar 350 is actually a dust removing device, and the static electricity removing ion wind bar 350 is used for removing dust on the workpiece. After the dust on the workpiece is removed by the static-removing ion wind bar 350, the dust on the workpiece can be prevented from being treated as a defect by the front-view camera 330 or the oblique-view camera 340, and the detection accuracy of the front-view camera 330 or the oblique-view camera 340 is further improved.

Referring to fig. 5, 6 and 7, in some embodiments, the jig 220 includes a first side light assembly 221, a second side light assembly 222, a substrate 223, a positioning assembly 230 and a lighting assembly 240, wherein the substrate 223 is used for carrying a workpiece and is detachably connected to the rotating plate 210. When the substrate 223 is fixed on the rotating plate 210, the entire jig 220 may be mounted on the rotating plate 210; when the substrate 223 is unloaded from the rotating plate 210, the entire jig 220 may be unloaded from the rotating plate 210. The first side light assembly 221, the second side light assembly 222 and the lighting assembly 240 are disposed around the workpiece, that is, the first side light assembly 221, the second side light assembly 222 and the lighting assembly 240 may enclose a rectangular cavity, and the workpiece may be accommodated in the rectangular cavity. Specifically, the number of the first side light assemblies 221 is two, the number of the second side light assemblies 222 and the number of the lighting assemblies 240 are both one, the first side light assemblies 221 extend in the width direction of the workpiece, and the two first side light assemblies 221 are disposed at intervals in the length direction of the workpiece. In other words, one of the first side light assemblies 221 corresponds to one of the short sides of the workpiece, and the other first side light assembly 221 corresponds to the other short side of the workpiece. The second side light assembly 222 extends along the length of the workpiece and the lighting assembly 240 also extends along the length of the workpiece, such that the second side light assembly 222 and the lighting assembly 240 are spaced apart along the width of the workpiece. The second side light assembly 222 is located between one ends of the two first side light assemblies 221 and corresponds to one of the long sides of the workpiece, and the lighting assembly 240 is located between the other ends of the two first side light assemblies 221 and corresponds to the other long side of the workpiece.

During the process of photographing the workpiece by the front-view camera 330 or the oblique-view camera 340 to form the captured image, both the first side light assembly 221 and the second side light assembly 222 emit light, so that the light of the first side light assembly 221 and the second side light assembly 222 can cover the whole upper area where the workpiece is located. When the first side light assembly 221 and the second side light assembly 222 emit light, the influence of dust flying above the workpiece on the photographing of the front-view camera 330 or the oblique-view camera 340 can be eliminated, and the detection accuracy of the front-view camera 330 or the oblique-view camera 340 can be improved.

The lighting assembly 240 includes a movable plate 241, a fixed plate 242, a power source 243 and pins 244, the fixed plate 242 may be fixed on the base plate 223, the movable plate 241 is slidably disposed on the fixed plate 242, for example, a guide rail is disposed on the fixed plate 242, a guide groove is disposed on the movable plate 241, and when the guide groove is matched with the guide rail, a sliding connection relationship between the fixed plate 242 and the movable plate 241 may be achieved. The guide rail extends in a vertical direction so that the movable plate 241 is reciprocally slid in the vertical direction with respect to the fixed plate 242. The power source 243 may be an air cylinder, a cylinder barrel of the air cylinder may be fixed on the base plate 223 or the fixing plate 242, a piston rod of the air cylinder is connected with the movable plate 241, and when the piston rod of the air cylinder extends and retracts, the movable plate 241 may be driven to slide up and down. The contact pin 244 is fixed on the movable plate 241, when the workpiece is located on the base plate 223, the movable plate 241 can be made to move downward close to the workpiece relative to the fixed plate 242, so that the contact pin 244 follows the movable plate 241 to move close to the workpiece until being inserted into the insertion hole of the workpiece, and thus the contact pin 244 is matched with the workpiece, so that the workpiece can emit light under the action of the contact pin 244, namely, the workpiece is lightened to display pictures. Of course, the backlight 130 is disposed on the frame 120, and the backlight 130 may be turned on, so that the backlight 130 provides backlight for the workpiece, and the workpiece can better display images. The dust collector 140 is also arranged on the frame 120, the dust collector 140 may be a dust removing air knife, and when the dust collector 140 works, dust on the backlight 130 can be removed, so that the dust is prevented from covering and polluting the backlight 130, the brightness of the backlight 130 is improved, the dust is prevented from corroding the backlight 130, and the service life of the backlight 130 is prolonged.

The fixing plate 242 may further include a vacuum suction hole 242a, the vacuum suction hole 242a is communicated with a vacuum generating device, and when the vacuum generating device evacuates the vacuum suction hole 242a, the vacuum suction hole 242a may be in a vacuum state. When the workpiece is located on the base plate 223, the suction force generated by the vacuum suction holes 242a can firmly suck the workpiece on the base plate 223, so that the workpiece is prevented from shifting, the testing efficiency is improved, and the accuracy of the testing result is ensured.

The number of the positioning components 230 may be plural, the number of the positioning components 230 may be at least four, at least one positioning component 230 is arranged at a position corresponding to each long side of the workpiece, and at least one positioning component 230 is arranged at a position corresponding to each short side of the workpiece. The positioning assembly 230 includes a driver 231, a positioning post 232 and a buffer 233, the driver 231 may be an air cylinder, a cylinder of the driver 231 is fixed on the substrate 223, a piston rod of the driver 231 is connected with the positioning post 232, and the positioning post 232 is slidably connected with the substrate 223. When the piston rod of the driver 231 extends and retracts back and forth in the horizontal direction, the positioning column 232 can be driven to move away from or close to the workpiece in the horizontal direction. When the positioning post 232 moves close to the workpiece until it is pressed against the workpiece, correction and fine adjustment can be performed with respect to the position of the workpiece. For the positioning column 232 corresponding to the long side of the workpiece, the positioning column 232 can apply a pressing force to the workpiece in the width direction, and for the positioning column 232 corresponding to the short side of the workpiece, the positioning column 232 can apply a pressing force to the workpiece in the length direction. Therefore, according to the actual requirement, the positioning column 232 can apply a force to the workpiece along the length direction and/or along the width direction, so as to better realize fine adjustment and correction of the workpiece position. The buffering member 233 is connected with the positioning column 232, the buffering member 233 can have certain elasticity, and when the buffering member 233 collides with other parts in the process of moving a workpiece in the horizontal direction, the buffering member 233 can absorb impact energy well, so that the positioning column 232 and the driver 231 are prevented from being damaged by the impact energy.

In operation, a workpiece is placed on the fixture 220, the backlight 130, the first side light assembly 221 and the second side light assembly 222 are turned on, the movable plate 241 moves downward relative to the fixed plate 242, the contact pin 244 is engaged with the workpiece to light the workpiece, and then the front view camera 330 and the oblique view camera 340 photograph a display image of the workpiece to form a captured image, and the captured image is compared with a standard image to determine whether the display image of the workpiece has a defect.

Referring to fig. 8 and 9, in view of the fact that the jigs 220 carrying the workpiece can be placed on both the first station 211 and the second station 212 of the rotating plate 210, the testing area 11 can be located right below the front-view camera 330, and the loading and unloading area 12 and the testing area 11 are horizontally arranged at an interval. When the first station 211 is located in the testing area 11 and the second station 212 is located in the loading and unloading area 12, the detecting mechanism 300 can detect the workpiece on the jig 220 located at the first station 211 and place the workpiece on the jig 220 of the second station 212. After the rotating plate 210 rotates 180 degrees, the first station 211 is located in the feeding and discharging area 12, the second station 212 is located in the testing area 11, at this time, the workpiece on the jig 220 located at the second station 212 can be detected, the workpiece detected at the first station 211 is unloaded, and a new workpiece to be detected is placed on the jig 220 of the first station 211. Of course, when the model of the workpiece is changed, the jig 220 may be unloaded from the rotating plate 210 and the jig 220 matching with the model of the workpiece may be installed, so that the workpiece with the changed model may be smoothly carried on the jig 220. Therefore, after the rotating plate 210 rotates 180 ° each time, the detection mechanism 300 can detect the workpiece located at the first station 211 or the second station 212, that is, according to the periodic rotation of the rotating plate 210, the detection mechanism 300 can alternately detect the workpiece located at the first station 211 or the second station 212, and also alternately load and unload the workpiece and the jig 220 at the first station 211 or the second station 212.

Therefore, in the process of detecting the workpiece at the first station 211, the fixture 220 and the workpiece at the second station 212 can be unloaded and loaded by fully utilizing the time of the process, so that the workpiece to be detected is loaded in the fixture 220 matched with the model of the workpiece to be detected. After the inspection of the workpiece at the first station 211 is completed, the workpiece at the second station 212 may be rotated to the test area 11 for rapid inspection. Therefore, after the previous workpiece is detected, the detection mechanism 300 can detect the next workpiece immediately without waiting for the next workpiece to be completely ready, so that the waiting time of the detection mechanism 300 between the detection of two adjacent workpieces is effectively reduced or even eliminated, and the detection efficiency is greatly improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A detection device, comprising:

a frame;

2. The inspection device of claim 1, wherein the fixture is detachably connected to the rotating plate, and the inspection mechanism can alternately inspect the workpiece when the rotating plate rotates 180 ° each time.

3. The inspection device of claim 1, wherein the inspection mechanism includes a support, a linear module and a front-view camera, the support is disposed on the frame in a protruding manner, the linear module is fixed on the support, the front-view camera is disposed on the linear module, the linear module drives the front-view camera to slide relative to the support to move away from or close to the rotating plate, and the front-view camera is used for acquiring images in a direction perpendicular to a display plane of the workpiece.

4. The inspection device of claim 3, wherein said inspection mechanism further comprises a tilt camera secured to said support, said tilt camera for capturing images at an acute angle to the workpiece display plane.

5. The detection device according to claim 3, wherein the detection mechanism further comprises a static-removing ion wind rod, the static-removing ion wind rod is fixed on the support, and the static-removing ion wind rod is used for removing dust on the workpiece.

6. The detection device according to claim 1, wherein the jig comprises a base plate and a plurality of positioning assemblies, the base plate is used for bearing a workpiece and is detachably connected with the rotating plate, the plurality of positioning assemblies comprise a driver and a plurality of positioning columns, the driver is fixed on the base plate, the positioning columns are slidably connected with the base plate, the driver drives the positioning columns to slide to press against the workpiece, and the positioning columns of the plurality of positioning assemblies are used for applying pressing force along the length direction and the width direction of the workpiece.

7. The detecting device for detecting the rotation of the motor rotor according to the claim 1, wherein the jig comprises a first side light assembly and a second side light assembly, the first side light assembly and the second side light assembly are arranged around the workpiece, the number of the first side light assemblies is two, the two first side light assemblies extend along the width direction of the workpiece and are arranged at intervals, and the second side light assembly is located between one ends of the two first side light assemblies.

8. The detecting device according to claim 7, wherein the jig further comprises a lighting assembly, the lighting assembly is located between the other ends of the two first side light assemblies, the lighting assembly comprises a movable plate, a fixed plate, a pin and a power source, the movable plate is slidably connected with the fixed plate, the power source is connected with the fixed plate and drives the movable plate to slide, and the pin is fixed on the movable plate and used for being matched with a workpiece.

9. The detecting device for detecting the rotation of a motor rotor according to claim 8, wherein the fixing plate is provided with a vacuum absorption hole, and the vacuum absorption hole can form vacuum to fix a workpiece.

10. The detection device according to claim 1, further comprising at least one of the following: