CN-224218767-U - Pick-up mechanism, transfer device and display device repairing system

CN224218767UCN 224218767 UCN224218767 UCN 224218767UCN-224218767-U

Abstract

The application relates to a pick-up mechanism, a transfer device and a display device repairing system, which comprises a base body, a sliding seat, an adsorption head, a push-top seat, a pressure sensing piece and a pressure sensing piece, wherein the base body is driven by an external movement mechanism to move in a pick-up direction, the sliding seat is arranged on the base body in a sliding manner along the pick-up direction, the adsorption head is connected with the sliding seat and communicated with an external positive and negative pressure device, the adsorption head moves along the base body in the pick-up direction to pick up or place a chip, the push-top seat is arranged on the sliding seat in a sliding manner along the pick-up direction, the push-top seat is elastically connected with the sliding seat, and the pressure sensing piece is arranged on the base body and abuts against a measuring end of the pressure sensing piece in the pick-up direction. According to the application, the adsorption head is gradually pressed on the surface of the chip by the elastic force between the sliding seat and the pushing seat, and the pressure applied to the chip by the adsorption head is measured by the pressure sensing piece, so that the damage of the two sides is avoided, the adsorption head is ensured to suck the chip, and the stability of the pick-up and transfer of the chip is improved.

Inventors

ZHANG LIJUN
LI YONG
WANG DING
TANG WEI

Assignees

武汉国创科光电装备有限公司

Dates

Publication Date: 20260508
Application Date: 20250506

Claims (10)

1.A pick-up mechanism, comprising: The base body is driven by an external movement mechanism to move in the pick-up direction; the sliding seat is arranged on the seat body in a sliding manner along the picking direction; The adsorption head is connected to the sliding seat and communicated with an external positive-negative pressure device, and the adsorption head picks up or places a chip along with the movement of the seat body in the pick-up direction; The pushing seat is arranged on the sliding seat in a sliding manner along the picking direction, and is elastically connected with the sliding seat; The pressure sensing piece is arranged on the base body, and the pushing seat abuts against the measuring end of the pressure sensing piece in the pick-up direction.
2. The pickup mechanism of claim 1, further comprising: The guide rod is connected with the sliding seat, the length direction of the guide rod is arranged along the pick-up direction, and the guide rod penetrates through the push-top seat; and two ends of the first elastic piece are respectively connected with the sliding seat and the pushing seat.
3. The pickup mechanism of claim 1, wherein the suction member comprises: The needle cylinder is inserted and fixed on the sliding seat and is communicated with an external positive-negative pressure device; The needle body, the one end of needle body insert establish connect in the needle body, just the needle body with the cylinder intercommunication, the other end of needle body compress tightly in the chip.
4. The pick-up mechanism of claim 1, wherein the needle body comprises a glass needle tube.
5. The pickup mechanism according to any one of claims 1 to 4, wherein the pickup direction is arranged vertically, and the pressure sensor, the ejector pad, the slide pad, and the suction head are arranged in this order from top to bottom.
6. The pickup mechanism according to claim 5, further comprising a second elastic member connecting the base body and the slide base, the second elastic member supporting the slide base, and an elastic force of the second elastic member counteracting a gravitational force of a part or all of the second elastic member load member.
7. A transfer device comprising a pick-up mechanism as claimed in any one of claims 1 to 6.
8. The transfer device of claim 7, further comprising: a pick-up rack; The pick-up driving assembly is arranged on the pick-up frame and is in driving connection with the pick-up mechanism so as to drive the pick-up mechanism to move in the front-back, left-right and up-down directions.
9. The transfer device of claim 7, further comprising a visual detection assembly comprising: The imaging direction of the visual positioning piece is arranged along the picking direction, and the visual positioning piece captures mark points on the standby substrate; The imaging direction of the visual monitoring control is inclined to the plane where the standby substrate is located, and the visual monitoring control images the chip to be picked up.
10. A display device repair system comprising a pick-up mechanism according to any one of claims 1 to 6 and/or a transfer device according to any one of claims 7 to 9.

Description

Pick-up mechanism, transfer device and display device repairing system Technical Field The application relates to the technical field of chip pickup, in particular to a pickup mechanism, a transfer device and a display device repairing system. Background MicroLED (micro light emitting diode) display devices are widely used due to their small size, low power consumption, high brightness, high color saturation, fast response, long life, etc. In order to improve the yield of the Micro LED display device, in the preparation process of the existing MicroLED display device, after the LED chip is transferred, the LED chip is subjected to accurate addressing detection and repair, the luminous chip which cannot be displayed is eliminated, and the yield of the display device is improved. The chips to be transferred are generally arranged on the standby substrate in batches, and when the defect points of the substrate to be repaired need to be repaired, the chips are picked up from the standby substrate and then transferred to the defect points of the substrate to be repaired. In general, the chip is picked up by means of adhesion, adsorption, magnetic force, or the like. After picking up the chip, the chip is placed at the defect point and is fixed at the defect point. In the related art, the adsorption head is driven to move by the movement mechanism or the mechanical arm, and the adsorption head adsorbs the pick-up chip in a negative pressure mode, so that the chip is transferred. Because the chip size is less, in the chip picking process, the adsorption surface of the adsorption head needs to be ensured to be tightly attached to the surface of the chip, so that gaps between the adsorption head and the chip are avoided, and stable adsorption to the chip is ensured. But directly push down the adsorption head, make the adsorption head paste the chip closely through controlling the decline height of adsorption head, easily because different chips have a little difference in height, and the compressive force that receives when leading to different chips is different. The conditions that the pressure is too big and damage chip and absorption head easily appear to and the conditions that the chip absorption is infirm easily appear, and the pick-up effect of chip is relatively poor. Disclosure of utility model The embodiment of the application provides a pick-up mechanism, a transfer device and a display device repairing system, which are used for solving the technical problems that when a chip is picked up by adsorption in the related art, an adsorption head is difficult to control to press the chip under a specified pressure, the chip and the adsorption head are easy to damage, the chip is not firmly adsorbed, and the pick-up effect of the chip is poor. In a first aspect, there is provided a pick-up mechanism comprising: The base body is driven by an external movement mechanism to move in the pick-up direction; the sliding seat is arranged on the seat body in a sliding manner along the picking direction; The adsorption head is connected to the sliding seat and communicated with an external positive-negative pressure device, and the adsorption head picks up or places a chip along with the movement of the seat body in the pick-up direction; The pushing seat is arranged on the sliding seat in a sliding manner along the picking direction, and is elastically connected with the sliding seat; The pressure sensing piece is arranged on the base body, and the pushing seat abuts against the measuring end of the pressure sensing piece in the pick-up direction. In some embodiments, the pick-up mechanism further comprises: The guide rod is connected with the sliding seat, the length direction of the guide rod is arranged along the pick-up direction, and the guide rod penetrates through the push-top seat; and two ends of the first elastic piece are respectively connected with the sliding seat and the pushing seat. In some embodiments, the adsorbent comprises: The needle cylinder is inserted and fixed on the sliding seat and is communicated with an external positive-negative pressure device; The needle body, the one end of needle body insert establish connect in the needle body, just the needle body with the cylinder intercommunication, the other end of needle body compress tightly in the chip. In some embodiments, the needle body comprises a glass needle cannula. In some embodiments, the pick-up direction is vertically arranged, and the pressure sensor, the push base, the slide base, and the suction head are sequentially arranged from top to bottom. In some embodiments, the pick-up mechanism further includes a second elastic member, the second elastic member connects the base and the sliding seat, the second elastic member supports the sliding seat, and the elastic force of the second elastic member counteracts the gravity of part or all of the second elastic member load part. The technical scheme provided by the application has the b