CN211318665U

CN211318665U - Point inspection camera base mechanism of no eccentric needle

Info

Publication number: CN211318665U
Application number: CN201921894443.4U
Authority: CN
Inventors: 陈江聪; 曹锋; 管洪勇
Original assignee: Ji'an Mulinsen Semiconductor Materials Co ltd
Current assignee: Ji'an Mulinsen Precision Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-21
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a LED chip check out test set technical field, concretely relates to point test camera base mechanism of no inclined to one side needle. The device comprises a camera, a camera base, a bracket and a cylinder; the camera is fixedly arranged at the lower end of the camera base; the camera base is fixedly arranged on the sliding block; the sliding block is arranged on the guide rail and moves up and down along the guide rail; the cylinder is arranged on the bracket; and one end, far away from the cylinder, of an extension rod of the cylinder is fixedly connected with the camera base through a protruding part. The utility model provides a point camera base mechanism's simple structure, easy to operate implements, and the function is easy to go. The cylinder is adopted to drive the camera base, so that the upper position and the lower position of the camera are controlled, the distance between the scanning center of the camera and the point measurement center is regulated, the point measurement center of the chip and the center of the camera are high in coincidence, the number of times of needle alignment is reduced, and the quality and the efficiency are improved. Compared with the traditional replacement of a C3 matched screw rod, a guide rail, a sliding block and the like, the use cost can be greatly saved.

Description

Point inspection camera base mechanism of no eccentric needle

Technical Field

The utility model relates to a LED chip check out test set technical field, concretely relates to point test camera base mechanism of no inclined to one side needle.

Background

With the rapid development of science and technology, the LED chip has smaller volume and larger market demand, and the light emitting body of the LED lighting fixture which is rapidly popularized at present is the LED chip with different shapes and colors. The production of the product can not be detected, and the chips produced in large scale can only be detected by a full-automatic point detection machine.

The chip detection procedure is to electrify the chip and then measure various electrical parameters or optical parameters of the chip by using a point measuring machine. The chip is energized by placing the tips of the probes against the electrodes of the chip and then energizing the probes. The control of the contact pressure between the chip electrode and the probe tip is an important process of testing, and the small contact pressure can cause large contact resistance and poor contact so as to cause false detection; large contact pressure can dent the electrodes and affect chip appearance and performance.

In the testing process of the chip point-to-plant point-testing machine, the same wafer and chips at different area positions are subjected to probe trace deviation beyond the center of the electrode when the probe is pricked on the electrode, the appearance of a finished product is seriously not in accordance with the inspection standard, a supplier replaces a high-precision lead screw and a matched guide rail of C3, the purchase cost is high, the installation and debugging process is complicated, and the improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, the utility model provides a point inspection machine base mechanism without eccentric needles, which comprises a camera, a camera base, a bracket and a cylinder; the camera is fixedly arranged at the lower end of the camera base; the camera base is fixedly arranged on the sliding block; the sliding block is arranged on the guide rail and moves up and down along the guide rail; the guide rail is arranged on the bracket; the cylinder is arranged on the bracket; and one end, far away from the cylinder, of an extension rod of the cylinder is fixedly connected with the camera base through a protruding part.

Preferably, the guide rail is provided with an upper limiting block.

Preferably, the bracket is provided with a lower limiting block; the lower limiting block is arranged at the bottom of one end, far away from the cylinder, of the extension rod.

Preferably, the lower limiting block is provided with a buffer member.

Preferably, the distance between the scanning center of the camera and the measuring center of the point is not more than 5 mm.

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

(1) the utility model provides a point camera base mechanism's simple structure, easy to operate implements, and the function is easy to go.

(2) The cylinder is adopted to drive the camera base, so that the upper position and the lower position of the camera are controlled, the distance between the scanning center of the camera and the point measurement center is regulated, the point measurement center of the chip and the center of the camera are high in coincidence, the number of times of needle alignment is reduced, and the quality and the efficiency are improved.

(3) Traditional camera is fixed to be set up in electricity and surveys the chip top, and the scanning center of camera differs more than 85mm with the distance of point survey center and the needle mark variation is inclined to one side, and to this application through control camera scanning center and the distance between the point survey center, make it not exceed 5mm and perfectly solve above-mentioned problem, compare traditional supporting lead screw, guide rail, slider etc. of changing C3, can practice thrift very big use cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1-cylinder, 101-extension bar, 2-slide block, 3-camera base, 302-lug boss, 4-camera, 5-scanning center, 6-point measuring center, 7-guide rail, 8-upper limit block, 801-lower limit block, 9-bracket and 10-buffer component.

Detailed Description

The contents of the present invention can be more easily understood by referring to the following detailed description of the preferred embodiments of the present invention and the included examples. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

In the description of the present invention, it should be noted that the terms "central", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a point measuring camera base mechanism without an eccentric needle, which comprises a camera, a camera base, a bracket and a cylinder; the camera is fixedly arranged at the lower end of the camera base; the camera base is fixedly arranged on the sliding block; the sliding block is arranged on the guide rail and moves up and down along the guide rail; the guide rail is arranged on the bracket; the cylinder is arranged on the bracket; and one end, far away from the cylinder, of an extension rod of the cylinder is fixedly connected with the camera base through a protruding part.

When an applicant uses a point-measuring machine to test chips at different area positions of the same wafer and a probe is pricked on an electrode, the produced needle mark deviates and exceeds the center of the electrode, and the appearance of a finished product is seriously not in accordance with the inspection standard. The applicant finds that the main reason for the technical problem is that the distance between the scanning center and the spot measuring center of the spot measuring machine is far, reaching more than 85 mm. Originally, the camera is relatively accurate to the location of chip different positions, but because lead screw, guide rail, slider etc. are inconsistent at different position accuracy, when the chip moved to the test of some position finding after the camera position scanning, the workstation carried the chip and can't be with accurate the removal of electrode under the probe, lead to the needle mark position to appear the variation to deviate from the needle.

The applicant sets up on the camera base through fixed with the camera, and the bellying of rethread camera base links to each other camera base and cylinder extension bar bottom, drives camera base through the cylinder, and camera base drives the camera again and reciprocates, and the scanning center (for example CCD image sensor) on the camera along with the reciprocating regulation and control of camera and the distance between the point survey center to avoid the circumstances such as variation skewed needle to appear in the needle mark position.

Furthermore, an upper limiting block is arranged on the guide rail. The applicant sets up the upper limit piece on the guide rail to this comes control camera base and the rising height of camera, also means the distance between control scanning center and the point survey center, avoids scanning center and the too big variation deflection needle that leads to appearing of distance between the point survey center.

Furthermore, a lower limiting block is arranged on the bracket; the lower limiting block is arranged at the bottom of one end, far away from the cylinder, of the extension rod. The applicant sets a lower limit block on the bracket so as to control the downward movement distance of the convex part of the camera base, and the camera is fixed on the camera base, so that the nearest distance between the camera and the point measuring center can be controlled. The lower limit block is arranged below the extending rod of the cylinder.

Furthermore, a buffer component is arranged on the lower limiting block. The applicant is provided with the buffering part fixedly above the lower limiting block, so that the collision of the camera base to the lower limiting block can be favorably slowed down, the shake brought to the camera is reduced, and the deviation in the control progress is avoided.

Further, the distance between the scanning center of the camera and the point measuring center is not more than 5 mm. The applicant finds that the distance between the scanning center and the point measurement center directly influences or causes variation of a needle mark position to a great extent, and the applicant finds in the process of completing the invention that the problem of variation of the needle mark is solved when the distance between the scanning center and the point measurement center is not more than 5mm through a cylinder, a camera base and the like.

The first embodiment is as follows: as shown in fig. 1, the present embodiment discloses a base mechanism of a point camera without an offset needle, which includes a CCD camera 4, a camera base 3, a bracket 9, and a cylinder 1; the CCD camera 4 is fixedly arranged at the lower end of the camera base 3; the camera base 3 is fixedly arranged on the sliding block 2; the sliding block 2 is arranged on the guide rail 7 and moves up and down along the guide rail 7; the guide rail 7 is arranged on the bracket 9; the cylinder 1 is arranged on the bracket 9; one end, far away from the cylinder 1, of the extension rod 101 of the cylinder 1 is fixedly connected with the camera base 3 through a bulge 302; an upper limiting block 8 is arranged on the guide rail 7; the bracket 9 is provided with a lower limit block 801; the lower limit block 801 is arranged at the bottom of one end of the extension rod 101, which is far away from the cylinder 1; the lower limit block 801 is provided with a buffer member 10.

The drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale.

Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content disclosed above into equivalent embodiments with equivalent changes, but all those skilled in the art do not depart from the technical scope of the present invention, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A point camera base mechanism without an eccentric needle comprises a camera, and is characterized by further comprising a camera base, a support and a cylinder; the camera is fixedly arranged at the lower end of the camera base; the camera base is fixedly arranged on the sliding block; the sliding block is arranged on the guide rail and moves up and down along the guide rail; the guide rail is arranged on the bracket; the cylinder is arranged on the bracket; and one end, far away from the cylinder, of an extension rod of the cylinder is fixedly connected with the camera base through a protruding part.

2. The base mechanism of an unbiased needle point measuring machine as claimed in claim 1, wherein the guide rail is provided with an upper limit block.

3. The base mechanism of an unbiased needle point measuring machine according to claim 1, wherein the support is provided with a lower limiting block; the lower limiting block is arranged at the bottom of one end, far away from the cylinder, of the extension rod.

4. The base mechanism of an unbiased needle point measuring machine according to claim 3, wherein the lower limiting block is provided with a buffer member.

5. The base unit of an unbiased needle point inspection camera of claim 1, where the scan center of the camera is no more than 5mm from the point center.