CN113714957A

CN113714957A - Deformable probe card clamp suite

Info

Publication number: CN113714957A
Application number: CN202111177334.2A
Authority: CN
Inventors: 朱元庆; 袁宇锋; 王建镖
Original assignee: Nantong Xinmeng Test & Research Institute Operation Management Co Ltd
Current assignee: Nantong Xinmeng Test & Research Institute Operation Management Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2021-11-30
Anticipated expiration: 2041-10-09
Also published as: CN113714957B

Abstract

The invention discloses a deformable probe card fixture set which is provided with a rectangular structure formed by connecting two V-shaped pressing strips arranged on the left side and the right side and two strip-shaped pressing strips arranged on the front side and the rear side. The rotating shafts at two ends of the angular edge of the V-shaped pressing strip are fixed in the shaft seats at the outer sides, and can drive the strip-shaped pressing strip to rotate at a certain angle. The corner angle of the V-shaped pressing strip is 120-150 degrees, and the strip-shaped pressing strip is composed of two telescopic joints, a sleeve and a spring positioned in the sleeve. The invention is suitable for clamping the probe card with larger area, can finely adjust and accurately position, and is not easy to damage or crush the probe card.

Description

Deformable probe card clamp suite

Technical Field

The invention relates to a combined clamp.

Background

The combined clamp is assembled by clamp parts which can be used repeatedly, and is easy to connect and disassemble. The clamp can be assembled into various forms and structures.

The development trend of combined clamps is as follows:

1) multifunctional modularization of clamp elements: can be used independently or combined with other elements, such as various currently used module type unit bodies such as positioning clamping seats, positioning pressing supports, precision vices and the like, and has the comprehensive functions of positioning, clamping and adjusting.

2) It is composed of a series of unified and standardized elements and assemblies, and the reusable fixture can be used by one piece or by assembling several pieces.

The invention with the patent application number of 2020108241463 discloses a novel integrated circuit tooling fixture, which comprises a detection shell, wherein an installation frame body is fixedly installed on the upper surface of the detection shell, an installation fixing seat is fixedly installed in the middle of the front surface of the installation frame body, a detection box is movably installed on the upper surface of the detection shell, an integrated circuit board is movably installed inside the detection shell, limiting sliding columns are fixedly installed at positions, close to four corners, of the upper surface of the detection shell, and movable sliding holes are formed in the surfaces of two sides of the detection shell. The PCB circuit board is clamped by adopting multi-point contact, the contact point has larger stress, and the circuit board or the internal circuit thereof is easy to damage.

The invention with the patent application number of 2018104371846 discloses a connecting clamp of a needle type connecting seat for a disc type circuit board, which comprises a main support plate, a movable plate and a limiting plate, wherein the limiting plate is fixedly supported above the main support plate in parallel, a positioning mechanism is arranged on the edge of a plate body of the limiting plate, a plurality of openings distributed in a circumferential array are formed in the limiting plate, the positions of the openings correspond to the positions of pads on the disc type circuit board, the movable plate is circular and arranged below the limiting plate and freely rotates relative to the limiting plate, a plurality of seat plates corresponding to the openings are fixed on the movable plate, and the seat plates penetrate through the openings. The movable plate integrally and simultaneously presses or simultaneously opens the clamped workpiece, is not beneficial to fine adjustment and positioning, and is not suitable for a rectangular circuit board.

Disclosure of Invention

The purpose of the invention is as follows:

the deformable probe card clamp external member is suitable for rectangular workpieces, can be sequentially pressed or detached on two sides, and is not easy to damage the workpieces.

The technical scheme is as follows:

the deformable probe card clamp external member has a rectangular structure formed by connecting two V-shaped pressing strips which are respectively arranged on the left side and the right side and two strip-shaped pressing strips which are arranged on the front side and the back side. The V-shaped pressing strip is composed of an outer side face, an angular edge and an inner side face (one side connected with the strip-shaped pressing strip), screw holes perpendicular to the end face are formed in two ends of the inner side face of the V-shaped pressing strip, through waist-shaped holes are formed in side edges of two ends of the strip-shaped pressing strip, screws penetrate through the waist-shaped holes and are screwed into the screw holes of the V-shaped pressing strip, the two V-shaped pressing strips are movably connected with the two strip-shaped pressing strips, and a rectangular frame fixture external member is formed.

The two ends of the angular edge of the V-shaped pressing strip are respectively provided with a shaft hole and a rotating shaft extending out of the shaft hole, and the rotating shaft is fixed in a bearing seat (or a shaft seat) at the outer side, so that the V-shaped pressing strip can rotate around the rotating shaft by a certain angle. At the moment, the strip-shaped pressing strips movably connected to the V-shaped pressing strips are also limited, but the strip-shaped pressing strips are not fixed, but can be turned over along with the two V-shaped pressing strips and then swing up and down, so that the clamping limit or release moving of the strip-shaped pressing strips (or the V-shaped pressing strips) on a lower workpiece (such as a probe card) is realized.

The V-shaped corner angle of the V-shaped pressing strip is 120-150 degrees instead of an acute angle, so that the situation that the operation is inconvenient due to overlarge twisting angle of hands caused by the overturning of the V-shaped pressing strip is avoided when the strip-shaped pressing strip is pressed).

Preferably, the strip-shaped pressing strip is composed of two telescopic joints, a sleeve and a spring. The two telescopic joints are respectively inserted at two sides of the sleeve, the spring is arranged in the sleeve, and two opposite inner sides of the two telescopic joints are connected through the spring. Due to the existence of the spring in the strip-shaped pressing strip, the two expansion joints can be independently expanded and contracted. The sum of the lengths of the two telescopic joints and the sum of the lengths of the springs when the springs are compressed are larger than that of the sleeve, so that the two telescopic joints are prevented from being compressed simultaneously to enter the sleeve and are not easy to take out.

The rotation of one V-shaped pressing strip causes the expansion joint connected with the V-shaped pressing strip to do expansion movement, so as to drive the strip-shaped pressing strip to press downwards or lift upwards, and clamp or release the half edge of the lower workpiece (such as a probe card). The force of pressing is small, the position of the workpiece can be adjusted in a fine adjustment mode, when the position is adjusted in place in the fine adjustment mode, the other V-shaped pressing strip is rotated, and the rotation of the two V-shaped pressing strips can clamp or release the whole workpiece. The action process enables the position of the whole workpiece to be accurate in place during clamping, and separation operation is convenient during releasing and taking out.

Has the advantages that: the combined clamp (or clamp suite) is a special clamp for parts and components which can be reused for many times. Production practice shows that compared with a special clamp for disposable use, the clamp is designed and manufactured by assembly instead. The clamp suite of the invention has the following characteristics: 1) The parts can be respectively prepared and flexibly combined, and the production preparation period can be shortened. 2) The clamping of a plurality of independent clamps to a large workpiece can be omitted, and the consumption of manpower and materials is reduced. 3) The storage space is small, the storage space is not easy to lose, and the management work is simplified. 4) The clamping device is suitable for clamping rectangular workpieces, is particularly suitable for clamping and positioning the probe card used in the IC sealing and testing industry, and can be used for quickly clamping or disassembling the rectangular probe card. The clamping is that the clamp contacts with the surface of the workpiece in a surface-to-surface mode, and is not in point contact or line contact, so that the contact area is large, and circuits and elements in the probe card are not easy to damage.

5) The invention is particularly suitable for a probe card with a larger area, one side edge can be clamped firstly, and the other side edge can be clamped, so that the workpiece can be finely adjusted and accurately positioned; one side can be disassembled first and then the other side is disassembled, so that the probe card is not easy to be damaged or crushed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of an end face configuration of the V-shaped bead of the present invention;

fig. 3 is a perspective view of the strip molding of the present invention.

In the figure, the 1-V-shaped pressing strip; 2-shaft seat; 3-a rotating shaft; 4-screws; 5-expansion joint (including 6-waist-shaped hole); 7-a sleeve; 11-a screw hole; 13-shaft hole; 14-kidney shaped holes; 15-spring.

Detailed Description

The deformable probe card clamp external member shown in fig. 1 has a rectangular structure formed by connecting two V-shaped pressing strips arranged on the left side and the right side and two strip-shaped pressing strips arranged on the front side and the rear side. The V-shaped pressing strip consists of an outer side surface, an angular edge and an inner side surface, and the V-shaped corner angle of the V-shaped pressing strip is 120-150 degrees.

The strip-shaped pressing strip consists of two telescopic joints, a sleeve and a spring; the two telescopic joints are respectively inserted at two sides of the sleeve, the spring is arranged in the sleeve, and two opposite inner sides of the two telescopic joints are connected through the spring.

The two ends of the angular edge of the V-shaped pressing strip are respectively provided with an axle hole and a rotating shaft extending out of the axle hole, and the rotating shaft is fixed in the axle seat at the outer side, so that the V-shaped pressing strip can rotate for a certain angle around the rotating shaft.

The two ends of the inner side surface of the V-shaped pressing strip are provided with screw holes perpendicular to the end surface, the side edges of the two ends of the strip-shaped pressing strip are provided with through waist-shaped holes, and screws penetrate through the waist-shaped holes and are screwed into the screw holes of the V-shaped pressing strip, so that the two V-shaped pressing strips and the two strip-shaped pressing strips form movable connection.

When the clamp is used, one side of a workpiece below the clamp can be clamped firstly, and then the other side of the workpiece can be clamped, so that the workpiece can be finely adjusted and positioned; when the workpiece is dismounted, the V-shaped pressing strip on one side of the clamp is firstly dismounted, and then the V-shaped pressing strip on the other side is dismounted, so that the two strip-shaped pressing strips are separated from the workpiece, and the dismounting of the clamp is completed.

Claims

1. A deformable probe card anchor clamps external member which characterized in that: the rectangular structure is formed by connecting two V-shaped pressing strips which are separately arranged on the left side and the right side and two strip-shaped pressing strips which are arranged on the front side and the rear side;

the V-shaped pressing strip is composed of an outer side face, an angular edge and an inner side face, screw holes perpendicular to the end face are formed in two ends of the inner side face of the V-shaped pressing strip, through waist-shaped holes are formed in side edges of two ends of the long strip-shaped pressing strip, and screws penetrate through the waist-shaped holes and are screwed into the screw holes of the V-shaped pressing strip, so that the two V-shaped pressing strips and the two strip-shaped pressing strips form movable connection.

2. A deformable probe card fixture kit as claimed in claim 1, wherein: the two ends of the angular edge of the V-shaped pressing strip are respectively provided with an axle hole and a rotating shaft extending out of the axle hole, and the rotating shaft is fixed in the axle seat at the outer side, so that the V-shaped pressing strip can rotate for a certain angle around the rotating shaft.

3. A deformable probe card fixture kit as claimed in claim 1 or 2, wherein: the V-shaped corner angle of the V-shaped pressing strip is 120-150 degrees.

4. A deformable probe card fixture kit as claimed in claim 1 or 2, wherein: the strip-shaped pressing strip consists of two telescopic joints, a sleeve and a spring; the two telescopic joints are respectively inserted at two sides of the sleeve, the spring is arranged in the sleeve, and two opposite inner sides of the two telescopic joints are connected through the spring.