CN209085897U - A bearing device for display panel testing - Google Patents

Abstract

The utility model relates to a kind of display panel test bogeys.The bogey, including carrier and testing base, it is connected by the connector of PCB signal rotating plate and display panel, the detection signal of display panel is transferred on the metal lattice of PCB signal rotating plate, when detection, display panel can be detected by being directly connected with the metal lattice of PCB signal rotating plate, reduce and injury caused by crimping is repeated several times to product；The metal lattice for directly detecting PCB signal rotating plate simultaneously, the connector for avoiding display panel cause testing result inaccurate since conducting is unsuccessful.It is equipped with support column in the quadrangle of pedestal, carrier is held for positioning, docks it accurately；It drives probe assembly to move up and down by cylinder, completes being turned on or off for signal, easy to operate, conducting success rate is high, and detection efficiency is high.The utility model structure is compatible can not test station use.

Description

A bearing device for display panel testing

technical field

The invention relates to the field of display panel testing, in particular to a bearing device for display panel testing.

Background technique

In the production process of the display panel, different performances of the display panel need to be tested. At present, different testing signals and different testing equipment are required to test the different performances of the display panel in the same process stage. During the testing process, most of the connectors of the display panel to be tested are directly crimped; a process is completed. At this stage, it is often necessary to repeatedly crimp the connector of the display panel to be tested. Such repeated crimping will cause great damage to the connector of the display panel. In severe cases, the entire display panel may even be scrapped. After repeated crimping, it is also easy to cause poor crimping during the inspection process, resulting in inaccurate inspection results and even failure to complete the inspection.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a bearing device for display panel testing, which only needs to crimp the connector of the display panel once to complete the detection of different performances in one process stage, extremely Greatly reduces damage to display panel connectors.

The technical solution adopted in the present invention is: a bearing device for display panel testing, comprising a carrier and a test base, characterized in that: the carrier comprises a support plate for placing the display panel and a PCB signal set on the support board A transfer board, the PCB signal transfer board is provided with a metal dot matrix for signal detection, the PCB signal transfer board is connected with the connector of the display panel, and the signal of the display panel is transmitted to the metal dot matrix through the PCB signal transfer board, The metal lattice is arranged on the test surface of the pallet;

The test base includes a base plate, a cylinder fixedly arranged on the base plate, a probe assembly in contact with the metal lattice and a support column for supporting the support plate, the cylinder body of the cylinder is fixed on the base plate, the The piston rod of the air cylinder is connected with the probe assembly, and the air cylinder drives the probe on the probe assembly to contact and conduct with the metal dot matrix on the PCB signal turning board.

Preferably, the PCB signal switch board includes a PCB-A switch board fixed on the mounting surface of the pallet product and a PCB-B switch board fixed on the test surface of the support board, and an interface of the PCB-A switch board is connected to The connector of the display panel is connected, another interface of the PCB-A transfer board is connected to the PCB-B transfer board, and the metal dot matrix is arranged on the PCB-B transfer board.

Further, the product mounting surface of the support plate is provided with a groove for placing the display panel and a limiting mechanism for limiting the display panel in the groove.

Furthermore, the limiting mechanism includes a buckle button disposed at one end of the groove, the other end and both sides of the groove are provided with silicone stoppers, and the stopper of the buckle button protrudes and presses the display panel. One end of the display panel, the other end and both sides of the display panel are limited and guided by the silicone stopper.

Further, the snap button is arranged in the button installation slot on the support plate, including a telescopic baffle set at the bottom of the button installation slot, a key plate and a key cover plate arranged on the telescopic baffle, and the button is installed The groove communicates with the groove, the telescopic baffle is provided with an inclined surface slideway on the side of the groove, the bottom of the key plate is provided with a roller sliding on the inclined surface slideway, and the upper end of the key plate passes through the limit of the key cover plate. Outside the position hole, the button cover is buckled with the inner side of the button installation groove; a spring is provided between the end face of the telescopic baffle away from the groove and the side wall of the button installation groove, and the telescopic baffle is close to the end face of the groove There is a stopper for pressing the display panel.

Further, the probe assembly includes a probe support board, a PCB board fixed on the probe support board, and a probe set on the PCB board, and the bottom of the probe support board is fixedly connected with the piston rod of the cylinder, so The PCB board is sequentially provided with a probe A splint and a probe B splint for clamping the probe, the probe B splint is provided with a probe pressure relief plate, and the cylinder drives the probe support plate to move upward through the piston rod , the probe sticks out from the probe buffer board and is in contact with the metal dot matrix on the PCB signal transfer board.

Furthermore, the four corners of the probe support plate are provided with guide holes, and the bottom plate is provided with guide posts matched with the guide holes.

Preferably, the four corners of the bottom plate are provided with support columns, the support columns are provided with electromagnets, and the test surface of the support plate is provided with magnets that are attracted to the electromagnets.

Preferably, the four corners of the bottom plate are provided with support columns, wherein two diagonal support columns are provided with positioning columns, and the support plate is provided with positioning holes matched with the positioning columns.

Preferably, the cylinder block is provided with a high position cylinder sensor and a low position cylinder sensor for detecting the position of the probe assembly.

The beneficial effects obtained by the invention are as follows: the PCB signal transfer board is connected to the connector of the display panel, and the detection signal of the display panel is transmitted to the metal dot matrix of the PCB signal transfer board. The display panel can be detected when the metal dot matrix is turned on, which reduces the damage caused by repeated crimping of the product. Success results in inaccurate test results. The display panel is placed in the groove of the support plate, and the display panel is caused and limited by the snap button and the silicone stopper, which is easy to operate and easy to use. The PCB signal transfer board adopts the method of buckle connection between the PCB-A transfer board and the PCB-B transfer board. The PCB-A transfer board is connected to the connector of the display panel. The metal dot matrix is set on the PCB-B transfer board. Just replace the PCB-B transfer board, which further reduces the damage to the product.

There are support columns at the four corners of the base, which are used to position and hold the carrier so that it can be accurately docked; the air cylinder drives the probe assembly to move up and down to complete the conduction or disconnection of the signal. The operation is simple and the success rate of conduction is high. The detection efficiency is high; the support column is provided with an electromagnet that is engaged with the carrier, which is pulled in when energized and disconnected when powered off, ensuring a firm connection with the carrier during the testing process.

The invention has the advantages of simple structure, convenient operation and use, and can be used in a non-testable station. At the same time, the damage to the product is only once, which greatly reduces the damage to the product caused by human factors and detection errors.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the exploded view of Fig. 1;

Figure 3-4 is a schematic diagram of the structure of the vehicle;

Figure 5-6 is a schematic diagram of the connection between the PCB signal transfer board and the display panel connector;

7 is a schematic diagram of the installation of the snap button on the pallet;

Figures 8-9 are schematic diagrams of the structure of the test base.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1-2, a bearing device for display panel testing of the present invention includes a carrier 1 and a test base 2. The display panel 3 to be tested is placed in the groove 1111 of the carrier 111 of the carrier 1, and the display panel is The connector 31 of 3 is connected to the PCB signal transfer board 13, and transmits the detection signal of the display panel 3 to the metal dot matrix 1321 of the PCB signal transfer board 13, and the probes 246 on the probe assembly 24 on the test base 2 are connected to the metal dot matrix 1321. The dot matrix 1321 is in contact and conducts, and the probes 246 do not need to be directly connected with the connector 31, which not only protects the product, but also ensures the success rate of conduction.

As shown in FIGS. 3-4 , the carrier 1 includes a support plate 11 for placing the display panel 3 and a PCB signal transfer board 13 arranged on the support plate 11 , and the display panel 3 is placed on the concave surface of the product mounting surface of the support plate 11 . In the groove 111 , the display panel 3 in the groove 111 is guided and limited by the silicone stopper 15 and the limiting mechanism 14 on the product mounting surface of the pallet 11 . The PCB signal transfer board 13 is fixed on the support plate 11 , and the PCB signal transfer board 13 is connected to the connector 31 of the display panel 3 by means of buckles, so as to transmit the detection signal of the display panel 3 to the metal dot matrix 1321 of the PCB signal transfer board 13 , To realize signal transmission, if you need to detect different functions of the display panel 3, you only need to detect the metal dot matrix 1321 on the PCB signal transfer board 13, which avoids the multiple repetition of the connector 31 of the display panel 3 in the process of different function detection. Pulling and plugging effectively protects the display panel 3; and the signal points of the metal dot matrix 1321 are more convenient and easier to detect than the connector 31 of the display panel 3, which avoids the failure of crimping due to human reasons during the detection process, resulting in detection error. The metal lattice 1321 is located on the test surface of the pallet 11 (the test surface and the product installation surface are located on the opposite sides of the pallet, the upper surface in FIG. 3 is the product installation surface, and the upper surface in FIG. 4 is the test surface. ).

As shown in Fig. 5-6, the PCB signal switch board 13 includes a PCB-A switch board 131 and a PCB-B switch board 132. The PCB-A switch board 131 is fixed on the product mounting surface of the pallet 11 by screws, and the PCB-B switch board The board 132 is fixed on the test surface of the support plate 11 by screws, and the metal dot matrix 1321 is arranged on the PCB-B turning board 132; an interface of the PCB-A turning board 131 is connected with the connector 31 of the display panel 3, and the PCB-A turning board 31 is connected. Another interface of the board 131 is connected to the PCB-B transfer board 132 , and the signal of the connector 31 of the display panel 3 is transmitted to the metal dot matrix 1321 after passing through the PCB-A transfer board 131 and the PCB-B transfer board 132 . The PCB-A transfer board 131 adopts a plug-resistant PCB board, and the PCB-B transfer board 132 adopts an ordinary PCB board. When replacing, only the PCB-B transfer board 132 can be replaced, and the entire PCB signal transfer board 13 does not need to be replaced. Cost; the PCB-B transfer board 132 is not directly connected to the connector 31 of the display panel 3 , which further protects the display panel 3 .

As shown in FIG. 7 , the limiting mechanism 14 includes a buckle button arranged at one end of the groove 111 , and the other end and both sides of the groove 111 are provided with silicone stoppers 15 . In the figure, the buckle button is installed on the support plate 11 . In the button installation groove 114 of the button, the blocking post 1411 of the button pushes out and presses one end of the display panel 3, the other end of the display panel 3 is pressed by a silicone stopper 15, and the two sides of the display panel 3 pass through three blocks (with One piece on one side of the PCB-A transfer board connection, and two pieces on the other side) silicone stopper 15 limit. The silicone block 15 is installed in the U-shaped slot around the groove 111 of the support plate 11 by bolts. The position of the silicone block 15 in the U-shaped slot can be adjusted, and the position of the display panel 3 in the groove 111 can be adjusted. Align the display panel 3 and the FPC.

In this embodiment, the snap button includes a telescopic baffle 141 disposed at the bottom of the button installation groove 114, a key plate 142 and a key cover 143 disposed on the telescopic baffle 141, the button installation groove 114 communicates with the groove 111, and the telescopic baffle 141 is connected to the groove 111. The baffle 141 is provided with a sloped slideway on the side of the groove 111, the bottom of the key board 142 is provided with a roller 1421 sliding on the sloped slideway, and the upper end of the key board 142 passes through the limit hole 1431 of the key cover 143. The plate 143 is buckled with the inner side of the button installation groove 114, and the inner side wall of the button installation groove 114 confines the button cover plate 143 in the groove; between the end face of the telescopic baffle 141 away from the groove 111 and the side wall of the button installation groove 114, a The spring is installed in the spring installation groove 1412 of the telescopic baffle 141 , and the end face of the telescopic baffle 141 close to the groove 14 is provided with a blocking post 1411 for pressing the display panel 3 .

Press the key board 142 downward, the roller 1421 at the lower end of the key board 142 moves relatively on the inclined slideway of the telescopic baffle 141. Since the key cover 143 is limited to the button installation groove 114, the key board 142 cannot move in the horizontal plane, so the roller 1421 drives the telescopic baffle 141 to slide to the side away from the groove 111 when the inclined slideway moves relatively, drives the blocking post 1411 to retract into the button installation groove 114, and the spring is compressed. Loosen the key plate 142, under the action of the restoring force of the spring, push the telescopic baffle 141 to move to the side of the groove 111, and drive the blocking post 1411 to extend, extend into the groove 111, and press the display panel 3.

As shown in Figures 8-9, the test base 2 is used in conjunction with the carrier 1 and can be used in non-testing stations. The test base 2 includes a base plate 21, a support column 22, a cylinder 23 and a probe assembly 24. Each corner is provided with support columns 22 , wherein two diagonal support columns 22 are provided with positioning columns 221 , the support plate 11 is provided with positioning holes 112 matched with the positioning columns 221 , and the support columns 22 are inserted into the corresponding positioning columns. In the hole 112 , the accurate positioning of the test base 2 and the carrier 1 is achieved when assembling. The support column 22 is provided with an electromagnet 222, and the support plate 11 is provided with a magnet 113. After electrification, the electromagnet 222 and the magnet 113 are attracted, and the support plate 11 cannot be removed from the support column 22. To detect the role of process protection. The cylinder block 231 of the air cylinder 23 is fixed on the bottom plate 21, the piston rod 232 of the air cylinder 23 is fixedly connected with the probe assembly 24, and the probe 246 on the drive probe assembly 24 is in contact with the metal dot matrix 1321, and the display panel 3 is illuminated. .

As shown in FIG. 9 , the probe assembly 24 includes a probe support board 241 , a PCB board 242 fixed on the probe support board 241 , and probes 246 arranged on the PCB board 242 . The bottom of the probe support board 241 is connected to the cylinder 23 . The piston rod 232 is fixedly connected, and the PCB board 242 is provided with a probe A splint 243 and a probe B splint 244 in order from bottom to top. The probe A splint 243 and the probe B splint 244 work together to clamp the probe 246. The needle B splint 244 is provided with a probe cushioning plate 245. During crimping, the cylinder 23 drives the probe support plate 241 to move upward through the piston rod 232, the probe cushioning plate 245 is compressed, and the probe 246 is released from the probe cushioning plate 245. The probes 246 are retracted into the probe cushioning plate 245 when the probes 246 are stretched out and are connected to the metal lattice 1321 after the crimping is completed and the probes 246 are not stressed.

In this embodiment, the four corners of the probe support plate 241 are provided with guide holes 411 , the bottom plate 21 is provided with guide posts 27 matched with the guide holes 411 , the guide holes 411 are matched with the guide posts 27 , and the cylinder 23 drives the probe assembly 24 When moving, it plays a guiding role and improves the success rate of conduction.

The cylinder body 231 of the cylinder 23 is provided with a high position cylinder sensor 25 and a low position cylinder sensor 26 for detecting the position of the probe assembly 24 to prevent the probe assembly 24 from being insufficiently stroked and the probe 246 not in contact with the metal lattice 1321, or The probe assembly 24 is overtraveled and the device is damaged.

The operating principle of the present invention is: pressing the key plate 142, the roller 1421 at the lower end of the key plate 142 moves on the inclined slideway of the telescopic baffle 141, and overcomes the spring force to retract the telescopic baffle 141 (the principle groove side moves) Put the display panel 3 to be tested into the groove 111, the groove 111 and the silicone stopper 15 guide the display panel 3 and the FPC; release the button, the telescopic baffle 141 pops out under the action of the spring restoring force, and the blocking post 1411 press the screen and buckle; at this time, the connector on the PCB-A turning board 131 and the display panel 3 connector 31 are buckled, and the signal is transmitted to the metal dot matrix 1321 at this time, and the display panel 3 is accurately placed on the carrier. 1; the carrier 1 supports the display panel 3 and can be placed on the test base 2, and the support columns 22 are inserted into the corresponding positioning holes 112 to achieve accurate positioning when the test base 2 and the carrier 1 are assembled. The electromagnet 222 and the magnet 113 are sucked together, the test base 2 and the carrier 1 are firmly sucked together, the cylinder 23 drives the probe 246 on the probe assembly 24 to contact and conduct the metal dot matrix 1321, and the display panel 3 is illuminated. More different testing needs, different station testing.

The basic principles and main structural features of the present invention have been shown and described above. The present invention is not limited by the above examples, and without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of display panel test bogey, including carrier (1) and testing base (2), it is characterised in that: the carrier (1) include for placing the supporting plate of display panel (3) (11) and PCB signal rotating plate (13) on supporting plate (11) being arranged, it is described PCB signal rotating plate (13) is equipped with the metal lattice for signal detection, the PCB signal rotating plate (13) and display panel (3) The signal of the connection of connector (31) make-up, display panel (3) is transferred to metal lattice (1321) by PCB signal rotating plate (13), The metal lattice (1321) is arranged on the test surfaces of supporting plate (11)；

The testing base (2) includes bottom plate (21), the cylinder (23) being fixed on bottom plate (21), contacts with metal lattice The cylinder body (231) of the probe assembly (24) of conducting and support column (22) for holding supporting plate (11), the cylinder (23) is fixed On bottom plate (21), the piston rod (232) of the cylinder (23) is connected with probe assembly (24), and the cylinder (23) drives probe Probe (246) on component (24) contacts conducting with the metal lattice (1321) on PCB signal rotating plate (13).

2. display panel test bogey according to claim 1, it is characterised in that: the PCB signal rotating plate (13) include the PCB-A rotating plate (131) that is fixed on supporting plate (11) product mounting surface and be fixed on supporting plate (11) test surfaces PCB-B rotating plate (132), an interface of the PCB-A rotating plate (131) is connect with the connector (31) of display panel (3), described Another interface of PCB-A rotating plate (131) is connect with PCB-B rotating plate (132), and the metal lattice (1321) is arranged in PCB-B On rotating plate (132).

3. display panel test bogey according to claim 1 or 2, it is characterised in that: the supporting plate (11) Product mounting surface is equipped with the groove (111) for placing display panel (3) and is used to limit display panel (3) in groove (111) position-limit mechanism (14) in.

4. display panel test bogey according to claim 3, it is characterised in that: position-limit mechanism (14) packet Setting is included in the fastening button of groove (111) one end, groove (111) other end and two sides are equipped with silica gel block (15), The bumping post (1411) for fastening button stretches out the one end for pushing down display panel (3), the other end and two of the display panel (3) Side limits correcting by silica gel block (15).

5. display panel test bogey according to claim 4, it is characterised in that: the fastening button setting exists In button mounting groove (114) on supporting plate (11), including be arranged button mounting groove (114) bottom telescopic baffle (141), set Set keypad (142) and key cap (143) on telescopic baffle (141), the button mounting groove (114) and groove (111) it communicates, the telescopic baffle (141) is equipped with inclined-plane slideway by groove (111) side, and keypad (142) bottom is set There is the idler wheel (1421) slided on inclined-plane slideway, the upper end of the keypad (142) is pierced by the limit hole of key cap (143) (1431) outside, the key cap (143) and button mounting groove (114) medial surface fasten；The telescopic baffle (141) is far from recessed Spring is equipped between the end face and button mounting groove (114) side wall of slot (111), the telescopic baffle (141) is close to groove (111) End face be equipped with bumping post (1411) for pushing down display panel (3).

6. display panel test bogey according to claim 3, it is characterised in that: probe assembly (24) packet Include probe supporting plate (241), the pcb board (242) that is fixed on probe supporting plate (241) and the probe being arranged on pcb board (242) (246), probe supporting plate (241) bottom is fixedly connected with the piston rod (232) of cylinder (23), on the pcb board (242) according to It is secondary to be equipped with probe A clamping plate (243) and probe B clamping plate (244) for clamping probe (246), on the probe B clamping plate (244) Delay pressing plate (245) equipped with probe, the cylinder (23) is moved upwards by piston rod (232) driving probe supporting plate (241), probe (246) delay metal lattice (1321) the contact conducting stretched out in pressing plate (245) and on PCB signal rotating plate (13) from probe.

7. display panel test bogey according to claim 6, it is characterised in that: the probe supporting plate (241) Quadrangle on be equipped with guide hole (2411), the bottom plate (21) is equipped with the guide post (27) that cooperates with guide hole (2411).

8. display panel test bogey according to claim 1, it is characterised in that: the quadrangle of the bottom plate (21) It is equipped with support column (22), is equipped with electromagnet (222) on the support column (22), set on the test surfaces of the supporting plate (11) There is the magnet (113) being attracted with electromagnet (222).

9. display panel test bogey according to claim 1, it is characterised in that: the quadrangle of the bottom plate (21) Support column (22) are equipped with, wherein two diagonal support columns (22) are equipped with positioning column (221), the supporting plate (11) is equipped with With the location hole (112) of positioning column cooperation.

10. display panel test bogey according to claim 1, it is characterised in that: cylinder (23) cylinder body (231) high position cylinder inductor (25) and the lower position cylinder inductor for detection probe component (24) position are equipped with (26)。