CN107221271B - A tool for detecting display screen - Google Patents

Abstract

The invention discloses a jig for detecting a display screen. Including board support, driving gear, pivot, first driven gear, second driven gear, disc, connecting rod, L template, fixing base, vacuum adsorption dish etc.. The rotary frame and the L-shaped plate are driven to rotate by controlling the first driven gear and the second driven gear through the arrangement of the driving gear, the first driven gear and the second driven gear, and the display screen clamped by the vacuum adsorption plate and the clamping groove on the L-shaped plate can rotate, so that the detection of multiple angles of the display screen is met, and the detection effect is good; it sets up the fixing base through setting up on the L template, and the both ends of draw-in groove set up positioning mechanism on the fixing base, can satisfy different horizontal size's display screen and detect, and it sets up the vacuum adsorption dish through sliding on the vertical direction of L template, can satisfy different vertical size's display screen and detect, and detection effect is good.

Description

A jig for detecting display screen

Technical field:

The invention belongs to the technical field of display screen detection, and in particular relates to a jig for detecting a display screen.

Background technique:

The LED display is a flat panel display consisting of small LED module panels. LED displays are generally used to display text, images, videos, video signals and other information. LED is a light-emitting diode. It is a diode made of gallium, arsenic, phosphorus, nitrogen, and indium compounds by controlling the display mode of semiconductor light-emitting diodes. When electrons and holes recombine, they can radiate visible light, so they can be used with to make light-emitting diodes. In order to ensure the display quality, it is necessary to strictly control the flatness of the entire LED display, the pixel center distance deviation of each LED display panel, the horizontal relative misalignment deviation of each LED display, and the vertical relative misalignment deviation and other assembly accuracy. In order to ensure the reliability of the use of the LED display screen and avoid failure, the LED display screen needs to be tested in all aspects before leaving the factory.

When the existing LED display is tested, the LED display is generally placed on a shelf or platform. The shelf and platform are fixed, and only LED displays of the same specification can be detected. When different specifications need to be detected. When the LED display is used, the shelf needs to be remade, which is a waste of cost and has low detection efficiency; and the existing shelf or platform cannot be rotated, so the LED display cannot be detected from multiple angles, and the detection effect is poor.

Invention content:

For this reason, the technical problem to be solved by the present invention is that in the prior art, the rack used for the detection of the LED display screen can only detect the display screen of the same specification, and cannot perform multi-angle detection on the display screen, and the detection effect is poor. A jig for testing the display.

For achieving the above object, technical scheme of the present invention is as follows:

A jig for detecting a display screen, comprising:

A machine table, a vertical bracket is formed on the machine table, and a first through hole is formed in the center of the bracket.

A driving gear, a rotating shaft is fixedly arranged at the center of the driving gear, and the first end of the rotating shaft passes through the first through hole on the bracket.

a first driven gear and a second driven gear, the first driven gear and the second driven gear are respectively arranged on the upper end and the lower end of the driving gear, the first driven gear and the driving gear The gears are meshed, the second driven gear is meshed with the driving gear, the first driven gear is connected with a first driving device, and the second driven gear is connected with a second driving device.

The rotating frame includes a disc and a plurality of connecting rods arranged at the front end of the disc, and the second end of the rotating shaft passes through the driving gear and is fixedly connected to the disc.

L-shaped plate, the back of the L-shaped plate is fixedly connected with a plurality of the connecting rods, the vertical direction of the L-shaped plate vertical plate is slid with two vacuum suction disks, and the horizontal plate of the L-shaped plate is provided with two vacuum suction disks. A fixing seat is provided, the upper end of the fixing seat is formed with a transverse clamping groove, and both ends of the clamping groove are provided with a positioning mechanism.

As a preferred option of the above technical solution, the positioning mechanism includes a positioning bolt and a locking nut, a lateral positioning groove is formed on the front side wall and the rear side wall of the card slot, respectively, and the positioning bolt passes through the card groove respectively. The locking nut is screwed into the positioning grooves on the front side wall and the rear side wall.

As a preferred option of the above technical solution, the vacuum suction tray is arranged on the vertical plate of the L-shaped plate through a sliding device, and the sliding device includes a sliding guide rail and a sliding device vertically arranged on the vertical plate of the L-shaped plate. A sliding block on the sliding guide rail, the front end of the sliding block is fixedly connected to the vacuum suction plate.

As a preferred option of the above technical solution, the first end of the rotating shaft passes through the first through hole on the bracket and is then screwed with a limiting block.

As a preferred option of the above technical solution, both the first driving device and the second driving device are arranged on the bracket.

As a preferred option of the above technical solution, a plurality of the connecting rods are uniformly distributed in a ring shape around the center of the disk.

The beneficial effect of the present invention is that by setting the driving gear, the first driven gear and the second driven gear, the driving gear can be driven to run in both directions by controlling the first driven gear and the second driven gear, thereby driving the rotating frame. And the L-shaped plate rotates, and the display screen clamped by the vacuum adsorption plate and the card slot on the L-shaped plate can be rotated to meet the detection of multiple angles of the display screen, and the detection effect is good; , the two ends of the slot on the fixed seat are provided with positioning mechanisms, which can meet the detection of display screens of different horizontal sizes. The display screen is used for detection, and the detection effect is good; the device has simple structure, convenient operation and high practicability, and is suitable for large-scale production and use.

Description of drawings:

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

FIG. 1 is a schematic structural diagram of a jig for detecting a display screen according to an embodiment of the present invention;

2 is a schematic structural diagram of an L-shaped plate according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a rotating frame according to an embodiment of the present invention.

Description of symbols in the figure:

1-machine, 2-support, 3-drive gear, 4-rotating shaft, 5-first driven gear, 6-second driven gear, 7-first driving device, 8-second driving device, 9- Disc, 10-connecting rod, 11-L-shaped plate, 12-vacuum suction plate, 13-fixed seat, 14-locating bolt, 15-lock nut, 16-sliding device, 17-limiting block, 18-vacuum Adsorption hole, 201-first through hole, 1301-card slot, 1302-positioning slot, 1601-slide guide, 1602-slide block.

Detailed ways:

As shown in FIG. 1, a fixture for detecting a display screen of the present invention includes:

Machine table 1, a vertical bracket 2 is formed on the machine table 1, and a first through hole 201 is formed in the center of the bracket 2.

The driving gear 3, the center of the driving gear 3 is fixedly provided with a rotating shaft 4, the first end of the rotating shaft 4 passes through the first through hole 201 on the bracket 2, and the first end of the rotating shaft 4 passes through the The first through hole 201 on the bracket 2 is screwed with the limiting block 17 .

A first driven gear 5 and a second driven gear 6, the first driven gear 5 and the second driven gear 6 are respectively arranged on the upper and lower ends of the driving gear 3, the first driven gear The gear 5 meshes with the driving gear 3 , the second driven gear 6 meshes with the driving gear 3 , the first driven gear 5 is connected with a first driving device 7 , and the second driven gear 6 A second drive 8 is connected. Both the first driving device 7 and the second driving device 8 are arranged on the bracket 2 . The rotation direction of the first driven gear 5 driven by the first driving device 7 is opposite to the rotation direction of the second driven gear 6 driven by the second driving device 8 , so that the bidirectional operation of the driving gear 3 can be realized.

The rotating frame, as shown in FIG. 3 , the rotating frame includes a disc 9 and a plurality of connecting rods 10 arranged at the front end of the disc 9 , and the second end of the rotating shaft 4 is fixed after passing through the driving gear 3 The discs 9 are connected. A plurality of the connecting rods 10 are uniformly distributed in a ring shape around the center of the disk 9 .

L-shaped plate 11, the back of the L-shaped plate 11 is fixedly connected with a plurality of the connecting rods 10, as shown in FIG. 12. The vacuum suction tray 12 is arranged on the vertical plate of the L-shaped plate 11 through a sliding device 16, and the sliding device 16 includes a sliding guide rail 1601 vertically arranged on the vertical plate of the L-shaped plate 11 and a sliding A sliding block 1602 is disposed on the sliding guide 1601 , and the front end of the sliding block 1602 is fixedly connected to the vacuum suction plate 12 , and a plurality of vacuum suction holes 18 are distributed on the vacuum suction plate 12 . The horizontal plate of the L-shaped plate 11 is provided with a fixing seat 13 , the upper end of the fixing seat 13 is formed with a transverse clamping groove 1301 , and two ends of the clamping groove 1301 are provided with a positioning mechanism. The positioning mechanism includes a positioning bolt 14 and a locking nut 15 , a lateral positioning groove 1302 is formed on the front side wall and the rear side wall of the card slot 1301 respectively, and the positioning bolt 14 passes through the locking groove 1301 respectively. The locking nut 15 is screwed to the positioning grooves 1302 on the front side wall and the rear side wall.

A jig for detecting a display screen described in this embodiment. Including machine table, bracket, driving gear, rotating shaft, first driven gear, second driven gear, first drive device, second drive device, disc, connecting rod, L-shaped plate, fixed seat, vacuum suction plate, etc. . By setting the driving gear, the first driven gear and the second driven gear, it can drive the driving gear to run in both directions by controlling the first driven gear and the second driven gear, thereby driving the rotating frame and the L-shaped plate to rotate. The display screen clamped by the vacuum suction plate and the card slot on the L-shaped plate can be rotated to meet the detection of multiple angles of the display screen, and the detection effect is good. The positioning mechanism is provided at both ends, which can meet the detection of display screens of different horizontal sizes. By sliding the vacuum suction plate in the vertical direction of the L-shaped plate, it can meet the detection of display screens of different vertical sizes. The detection effect Good; the device is simple in structure, convenient in operation and high in practicability, and is suitable for large-scale production.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (6)

1. The utility model provides a tool for detecting display screen which characterized in that includes:

the device comprises a machine table (1), wherein a vertical support (2) is formed on the machine table (1), and a first through hole (201) is formed in the center of the support (2);

the center of the driving gear (3) is fixedly provided with a rotating shaft (4), and a first end of the rotating shaft (4) penetrates through a first through hole (201) in the support (2);

the driving gear (3) is provided with a first driven gear (5) and a second driven gear (6), the first driven gear (5) and the second driven gear (6) are respectively arranged at the upper end and the lower end of the driving gear (3), the first driven gear (5) is meshed with the driving gear (3), the second driven gear (6) is meshed with the driving gear (3), the first driven gear (5) is connected with a first driving device (7), and the second driven gear (6) is connected with a second driving device (8);

the rotating frame comprises a disc (9) and a plurality of connecting rods (10) arranged at the front end of the disc (9), and the second end of the rotating shaft (4) penetrates through the driving gear (3) and then is fixedly connected with the disc (9);

l template (11), the back fixed connection of L template (11) is a plurality of connecting rod (10), it is provided with two vacuum adsorption dish (12) to slide on the vertical direction of L template (11) riser, be provided with fixing base (13) on the diaphragm of L template (11), the upper end shaping of fixing base (13) has horizontal draw-in groove (1301), the both ends of draw-in groove (1301) are provided with positioning mechanism.

2. The jig for detecting the display screen according to claim 1, wherein: the positioning mechanism comprises a positioning bolt (14) and a locking nut (15), a transverse positioning groove (1302) is formed in the front side wall and the rear side wall of the clamping groove (1301) respectively, and the positioning bolt (14) penetrates through the positioning groove (1302) in the front side wall and the rear side wall of the clamping groove (1301) respectively and then is in threaded connection with the locking nut (15).

3. The jig for detecting the display screen according to claim 1, wherein: vacuum adsorption dish (12) are in through slider (16) setting on the riser of L template (11), slider (16) are including vertical setting sliding guide (1601) and the slip setting on the L template (11) riser are in sliding guide (1602) on the sliding guide (1601), the front end fixed connection of sliding block (1602) vacuum adsorption dish (12).

4. The jig for detecting the display screen according to claim 1, wherein: the first end of the rotating shaft (4) penetrates through the first through hole (201) in the support (2) and then is connected with a limiting block (17) in a threaded mode.

5. The jig for detecting the display screen according to claim 1, wherein: the first driving device (7) and the second driving device (8) are arranged on the bracket (2).

6. The jig for detecting the display screen according to claim 1, wherein: the connecting rods (10) are uniformly distributed around the center of the disc (9) in a ring shape.

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