CN213381230U

CN213381230U - Sucking disc suitable for high reliability chip test

Info

Publication number: CN213381230U
Application number: CN202022335415.8U
Authority: CN
Inventors: 刘文成; 王泰军; 叶文治
Original assignee: United Semiconductor Shandong Co ltd
Current assignee: United Semiconductor Shandong Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-08
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a sucking disc suitable for high reliability chip test, including the sucking disc body, two spacing grooves have been seted up to the up end symmetry of sucking disc body, every equal fixed mounting has servo motor in the lateral wall of spacing groove, servo motor's output fixed mounting has the threaded rod, the other end of threaded rod runs through behind the lateral wall of spacing groove and rotate to connect on the side inner wall of spacing groove, every threaded connection has the thread block on the threaded rod, the upper end fixed mounting of thread block has the fixed block, two one side that the fixed block is relative is fixed mounting two connecting plates respectively, every the equal fixed mounting of lower terminal surface of connecting plate has telescopic cylinder, every telescopic cylinder all has the mounting panel through piston rod fixed mounting. The utility model discloses, the clamp plate can prevent that the strip chip from bouncing back under gaseous reaction force, has avoided the strip chip to receive the collision, and then has avoided causing the damage of chip.

Description

Sucking disc suitable for high reliability chip test

Technical Field

The utility model relates to a chip detects technical field, especially relates to a sucking disc suitable for high reliability chip test.

Background

The traditional test mode for the strip chip is that the strip chip is firstly placed on a sucking disc, then the position of the strip chip is fixed through the sucking disc, and then the test is carried out.

But to strip chip test back, in order to guarantee production efficiency, all be suddenness through the sucking disc to the loosening of strip chip, because do not set up the safeguard measure to the strip chip on the strip chip for the strip chip rebounds under gaseous reaction force, makes the strip chip receive the collision, and then causes the damage of chip.

In order to solve the problem, the utility model provides a sucking disc suitable for high reliability chip test.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art "to the strip chip test back, in order to guarantee production efficiency, all be suddenness to loosening of strip chip through the sucking disc, because do not set up the safeguard measure to the strip chip on the strip chip for the strip chip rebounds under gaseous reaction force, makes the strip chip receive the collision, and then causes the defect of the damage of chip", thereby provides a sucking disc that is applicable to high reliability chip test.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sucker suitable for high-reliability chip testing comprises a sucker body, wherein two limiting grooves are symmetrically formed in the upper end face of the sucker body, a servo motor is fixedly mounted in the side wall of each limiting groove, a threaded rod is fixedly mounted at the output end of the servo motor, the other end of the threaded rod penetrates through the side wall of each limiting groove and is connected to the inner side wall of each limiting groove in a rotating mode, a threaded block is connected to each threaded rod in a threaded mode, a fixed block is fixedly mounted at the upper end of each threaded block, two connecting plates are fixedly mounted on the opposite sides of the two fixed blocks respectively, a telescopic cylinder is fixedly mounted on the lower end face of each connecting plate, a mounting plate is fixedly mounted on each telescopic cylinder through a piston rod, a mounting cavity is formed in the lower end face of the mounting plate, a sliding hole is formed in the lower end face of the mounting cavity, sliding connection has two sliders, two on the gag lever post common fixed mounting has the spring between the slider, every the lower extreme of slider all rotates and is connected with the negative pressure pipe, two the lower extreme of negative pressure pipe rotates jointly and is connected with the clamp plate, the lower terminal surface of clamp plate is provided with the foam-rubber cushion, negative pressure chamber has been seted up in the sucking disc body, negative pressure chamber lower extreme fixed mounting has the negative pressure pipe, the other end of negative pressure pipe runs through the lateral wall of sucking disc body and is connected with external negative pressure machine.

Preferably, the center department fixed mounting of the up end of sucking disc body has the buffer board, equidistant a plurality of negative pressure holes of having seted up on the buffer board, every the negative pressure hole all runs through the up end of sucking disc body and communicates each other with the negative pressure chamber.

Preferably, the center of the thread block is provided with a threaded hole matched with the threaded rod, and the threaded rod is in threaded connection with the threaded hole.

Preferably, the lower end face of each pressure plate is provided with a buffer sheet, and the buffer sheets are fixedly installed on the bottom end face of the pressure plate.

Preferably, each fixing block is connected with the side wall of the limiting groove in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, a chip is placed on a buffer plate, then an external negative pressure machine is started, the negative pressure machine gradually pumps air in a negative pressure cavity through a negative pressure pipe, negative pressure is formed in the negative pressure cavity, the chip on the buffer plate is sucked, then a stepping motor is started, the stepping motor can drive a threaded rod to rotate, the threaded rod rotates to enable two threaded blocks to move oppositely, the two threaded blocks move oppositely to drive two fixed blocks to move oppositely, the two fixed blocks can drive two connecting plates to move to the top of the chip on the buffer plate, then a telescopic cylinder is started, the telescopic cylinder pushes a mounting plate to move downwards through a piston rod at an output end, a pressing plate below the mounting plate is abutted against the upper end face of the chip to further fix the position of the chip, after the chip is detected, the external negative pressure machine is closed, normal air pressure is restored in the negative pressure cavity, at the moment, the pressing plate can prevent the strip-shaped chip from rebounding under, the strip-shaped chips are prevented from being collided, and further the chips are prevented from being damaged.

Drawings

Fig. 1 is a schematic front structural view of a suction cup suitable for testing a high-reliability chip according to the present invention;

fig. 2 is an enlarged schematic view of a point a in fig. 1.

In the figure: 1 negative pressure pipe, 2 spacing grooves, 3 servo motors, 4 sucker bodies, 5 fixing blocks, 6 connecting plates, 7 mounting plates, 8 buffer plates, 9 negative pressure cavities, 10 threaded rods, 11 threaded blocks, 12 stepping motors, 13 springs, 14 pressing plates, 15 spacing rods, 16 sliding blocks and 17 telescopic cylinders.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a sucker suitable for high-reliability chip testing comprises a sucker body 4, two limiting grooves 2 are symmetrically formed in the upper end face of the sucker body 4, a servo motor 3 is fixedly installed in the side wall of each limiting groove 2, a threaded rod 10 is fixedly installed at the output end of the servo motor 3, the other end of the threaded rod 10 penetrates through the side wall of the limiting groove 2 and is rotatably connected to the side inner wall of the limiting groove 2, a threaded block 11 is connected to each threaded rod 10 in a threaded manner, a threaded hole matched with the threaded rod 10 is formed in the center of the threaded block 11, the threaded rod 10 is in threaded connection with the threaded hole, a fixed block 5 is fixedly installed at the upper end of the threaded block 11, each fixed block 5 is in sliding connection with the side wall of the limiting groove 2, two connecting plates 6 are fixedly installed on the opposite sides of the two fixed blocks 5 respectively, and, each telescopic cylinder 17 is fixedly provided with a mounting plate 7 through a piston rod, the lower end surface of the mounting plate 7 is provided with a mounting cavity, the lower end surface of the mounting cavity is provided with a slide hole, a limiting rod 15 is transversely and fixedly arranged in the mounting cavity, the limiting rod 15 is connected with two sliding blocks 16 in a sliding way, a spring 13 is jointly and fixedly arranged between the two sliding blocks 16, the lower end of each sliding block 16 is rotatably connected with a negative pressure pipe 1, the lower ends of the two negative pressure pipes 1 are rotatably connected with a pressing plate 14, the lower end surface of each pressing plate 14 is provided with a buffer sheet which is fixedly arranged on the bottom end surface of the pressing plate 14, the lower end surface of the pressing plate 14 is provided with a sponge cushion, a negative pressure cavity 9 is arranged in the sucker body 4, the lower end of the negative pressure cavity 9 is fixedly provided with the negative pressure pipe 1, the other end of the negative pressure pipe, a plurality of negative pressure holes are formed in the buffer plate 8 at equal intervals, and each negative pressure hole penetrates through the upper end face of the sucker body 4 and is communicated with the negative pressure cavity 9.

In the utility model, firstly, the chip is placed on the buffer board 8, then the external negative pressure machine is started, the negative pressure machine gradually pumps the air in the negative pressure cavity 9 through the negative pressure pipe 1, so that the negative pressure is formed in the negative pressure cavity 9, further the chip on the buffer board 8 is sucked, then the stepping motor 12 is started, the stepping motor 12 drives the threaded rod 10 to rotate, the threaded rod 10 rotates to make the two threaded blocks 11 move relatively, the two threaded blocks 11 move relatively to drive the two fixed blocks 5 to move relatively, the two fixed blocks 5 drive the two connecting plates 6 to move to the top of the chip on the buffer board 8, then the telescopic cylinder 17 is started, the telescopic cylinder 17 pushes the mounting board 7 to move downwards through the piston rod of the output end, so that the pressing plate 14 below the mounting board 7 is abutted against the upper end face of the chip, the position of the chip is further fixed, after the chip is detected, and (3) the external negative pressure machine is closed, the normal air pressure is recovered in the negative pressure cavity 9, and at the moment, the pressing plate 14 can prevent the strip-shaped chip from bouncing back under the reaction force of the air, so that the strip-shaped chip is prevented from being collided, and the chip is prevented from being damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sucking disc suitable for high reliability chip test, includes sucking disc body (4), its characterized in that, two spacing grooves (2) have been seted up to the up end symmetry of sucking disc body (4), every equal fixed mounting has servo motor (3) in the lateral wall of spacing groove (2), the output fixed mounting of servo motor (3) has threaded rod (10), the other end of threaded rod (10) runs through behind the lateral wall of spacing groove (2) and rotate and connect on the side inner wall of spacing groove (2), every threaded rod (10) go up threaded connection has screw thread piece (11), the upper end fixed mounting of screw thread piece (11) has fixed block (5), two one side that fixed block (5) are relative is fixed mounting two connecting plates (6) respectively, the lower terminal surface of every connecting plate (6) all fixed mounting has telescopic cylinder (17), each telescopic cylinder (17) is fixedly provided with a mounting plate (7) through a piston rod, the lower end surface of the mounting plate (7) is provided with a mounting cavity, the lower end surface of the mounting cavity is provided with a slide hole, a limiting rod (15) is transversely and fixedly arranged in the mounting cavity, two sliding blocks (16) are connected onto the limiting rod (15) in a sliding manner, a spring (13) is fixedly arranged between the two sliding blocks (16) jointly, the lower end of each sliding block (16) is rotatably connected with a negative pressure pipe (1), the lower ends of the two negative pressure pipes (1) are rotatably connected with a pressing plate (14) jointly, a spongy cushion is arranged on the lower end surface of the pressing plate (14), a negative pressure cavity (9) is arranged in the sucker body (4), the vacuum sucker is characterized in that a vacuum tube (1) is fixedly mounted at the lower end of the vacuum cavity (9), and the other end of the vacuum tube (1) penetrates through the side wall of the sucker body (4) and is connected with an external vacuum machine.

2. The sucking disc suitable for the high-reliability chip testing of claim 1, wherein a buffer plate (8) is fixedly installed at the center of the upper end surface of the sucking disc body (4), a plurality of negative pressure holes are formed in the buffer plate (8) at equal intervals, and each negative pressure hole penetrates through the upper end surface of the sucking disc body (4) and is communicated with the negative pressure cavity (9).

3. The suction cup suitable for the high-reliability chip test is characterized in that the center of the thread block (11) is provided with a threaded hole matched with the threaded rod (10), and the threaded rod (10) is in threaded connection with the threaded hole.

4. The suction cup suitable for high reliability chip testing according to claim 1, wherein the lower end face of each pressure plate (14) is provided with a buffer sheet, and the buffer sheet is fixedly installed on the bottom end face of the pressure plate (14).

5. The suction cup suitable for the high-reliability chip testing according to claim 1, wherein each fixing block (5) is slidably connected with the side wall of the limiting groove (2).