CN210270078U

CN210270078U - PCB testing tool

Info

Publication number: CN210270078U
Application number: CN201921128891.3U
Authority: CN
Inventors: 杨磊; 左文斌
Original assignee: Kunshan Chenfan Electronic Technology Co ltd
Current assignee: Kunshan Chenfan Electronic Technology Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-04-07
Anticipated expiration: 2029-07-18

Abstract

The utility model belongs to the technical field of PCB board check out test set and specifically relates to PCB board test fixture. This test fixture includes that board, PCB board place box, apron, buckle mechanism, support plate, ejector pin, constant head tank and probe, be fixed with the PCB board on the board and place the box, the PCB board is placed the box internal fixation and is had the support plate, has seted up the constant head tank on the support plate, and the probe passes the constant head tank, and the probe is fixed on the faller, and faller sliding connection is connected with resilient means in the board bottom, is connected with between faller and the board, and the PCB board is placed and is articulated on the box to have the apron, installs the ejector pin perpendicularly on the apron, rotates. The utility model discloses a place the PCB board and place the support plate in the box and fix a position, cover the apron again, come touch probe through pushing down the PCB board, realize the detection of PCB board under the closed environment. The positioning and testing efficiency is improved, and the condition that a person touches the probe by mistake to contact the probe is avoided.

Description

PCB testing tool

Technical Field

The utility model belongs to the technical field of PCB board check out test set and specifically relates to PCB board test fixture.

Background

The existing PCB test generally adopts a probe contact test. However, the existing test efficiency is low, and the probe may be touched by mistake in the live test, so that the risk of electric shock is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem described in the background art, the utility model provides a PCB board test fixture. The PCB is placed on the carrier plate in the PCB placing box to be positioned, the cover plate is covered, the PCB is pressed downwards to contact the probes, and the PCB is detected in a closed environment. The positioning and testing efficiency is improved, and the condition that a person touches the probe by mistake to contact the probe is avoided.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a PCB board test fixture, includes that board, PCB board place box, apron, buckle mechanism, support plate, ejector pin, constant head tank and probe, be fixed with the PCB board on the board and place the box, the PCB board is placed the box internal fixation and is had the support plate, has seted up the constant head tank on the support plate, and the probe passes the constant head tank, and the probe is fixed on the faller, and faller sliding connection is in the board bottom, is connected with resilient means between faller and the board, and the PCB board is placed and is articulated on the box to have the apron, installs the ejector pin perpendicularly on the apron.

Specifically, buckle mechanism comprises bull stick and briquetting, is fixed with the briquetting on the bull stick, and the bull stick bottom is rotated through the axle and is connected on the board.

Specifically, an air spring is hinged between the PCB placing box and the cover plate.

Specifically, a display is fixed on the machine.

Specifically, a top rod is connected to the cover plate in a sliding mode, and a spring is connected between the top rod and the cover plate.

The utility model has the advantages that: the utility model provides a PCB board test fixture. The PCB is placed on the carrier plate in the PCB placing box to be positioned, the cover plate is covered, the PCB is pressed downwards to contact the probes, and the PCB is detected in a closed environment. The positioning and testing efficiency is improved, and the condition that a person touches the probe by mistake to contact the probe is avoided.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

FIG. 2 is a schematic structural view of the inner part of the PCB placing box of the present invention;

fig. 3 is a schematic structural diagram of the cover plate of the present invention;

in the figure, the PCB placing box comprises a machine table 1, a PCB placing box 2, a cover plate 3, a clamping mechanism 4, a carrier plate 5, a push rod 6, a positioning groove 7, a probe 8, a gas spring 9, a display 10, a spring 11, a rotating rod 41 and a pressing block 42.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 is the structure schematic diagram of the utility model, fig. 2 is the structure schematic diagram of the inside of the box is placed to the PCB board of the utility model, fig. 3 is the structure schematic diagram of the apron of the utility model.

The utility model provides a PCB board test fixture, places box 2, apron 3, buckle mechanism 4, support plate 5, ejector pin 6, constant head tank 7 and probe 8 including board 1, PCB board, be fixed with the PCB board on board 1 and place box 2, the PCB board is placed box 2 internal fixation and is had support plate 5, has seted up constant head tank 7 on the support plate 5, and probe 8 passes the constant head tank, and probe 8 fixes on the faller, and faller sliding connection is in board 1 bottom, is connected with resilient means between faller and the board 1, and the PCB board is placed and is articulated on box 2 to have apron 3, installs ejector pin 6 on the apron 3 perpendicularly, rotates on board 1 and is connected with buckle mechanism 4. The buckling mechanism 4 is composed of a rotating rod 41 and a pressing block 42, the pressing block 42 is fixed on the rotating rod 41, and the bottom end of the rotating rod 41 is rotatably connected to the machine table 1 through a shaft. An air spring 9 is hinged between the PCB placing box 2 and the cover plate 3. A display 10 is fixed on the machine 1. The cover plate 3 is connected with a mandril 6 in a sliding mode, and a spring 11 is connected between the mandril 6 and the cover plate 3.

Referring to fig. 1 and 2, the cover plate 3 is hinged to one side of the opening of the PCB placing box 2 through a hinge, and when a worker turns the cover plate 3 downwards with force, the cover plate 3 closes the opening of the PCB placing box 2, and a piston rod of the gas spring 9 is in a retraction state. When the worker releases the cover plate 3, the piston rod of the gas spring 9 rebounds, and the cover plate 3 is driven to turn upwards and open the opening of the PCB placing box 2.

The snap mechanism 4 is first opened, then the cover plate 3 is opened, and the PCB board is placed into the positioning slot 7 of the carrier plate 5 and the cover plate 3 is covered.

As shown in fig. 3, after the top bar 6 slidably connected to the bottom end of the cover plate 3 is pushed against the PCB, the reaction force pushes the top bar 6 to slide along the hole of the cover plate 3, and during the sliding process, the spring 11 is compressed, thereby providing a buffer. Therefore, the ejector rod 6 can be in soft contact with the PCB, and further damage to the PCB is avoided.

When the cover plate 3 closes the opening of the PCB board placing box 2, the rotating rod 41 is rotated, and the pressing block 42 on the rotating rod 41 rotates to the upper side of the cover plate 3 until the bottom of the pressing block 42 is attached to the cover plate 3. Thus, when the cover plate 3 is rebounded by the gas spring 9, the cover plate is limited and clamped by the pressing block 42, and the closed positioning state of the cover plate 3 and the PCB placing box 2 is realized.

When the cover plate 3 is completely closed, the ejector pin 6 presses the PCB down, and the PCB abuts on the probe 8. After the probe 8 contacts the pressed PCB, the probe 8 slides downwards along with the needle plate, and the spring between the needle plate and the machine table 1 is in a pressing state and provides buffering. Thus, the soft contact between the probe 8 and the PCB is ensured, and the probe 8 and the PCB are prevented from being damaged.

The probe 8 is electrically connected with the single chip microcomputer, and the probe 8 detects the PCB through input micro current. The display 10 is electrically connected with the single chip microcomputer, and the single chip microcomputer outputs a detection result input by the probe to the display 10 to display the state of the PCB.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a PCB board test fixture, characterized by, places box (2), apron (3), buckle mechanism (4), support plate (5), ejector pin (6), constant head tank (7) and probe (8) including board (1), PCB board, be fixed with the PCB board on board (1) and place box (2), the PCB board is placed box (2) internal fixation and is had support plate (5), has seted up constant head tank (7) on support plate (5), and probe (8) pass the constant head tank, and probe (8) are fixed on the faller, and faller sliding connection is in board (1) bottom, is connected with resilient means between faller and board (1), and the PCB board is placed box (2) and is gone up to articulate and have apron (3), installs ejector pin (6) perpendicularly on apron (3), rotates on board (1) and is connected with buckle mechanism (4).

2. The PCB testing tool of claim 1, wherein: the clamping mechanism (4) is composed of a rotating rod (41) and a pressing block (42), the pressing block (42) is fixed on the rotating rod (41), and the bottom end of the rotating rod (41) is rotatably connected to the machine table (1) through a shaft.

3. The PCB testing tool of claim 1, wherein: an air spring (9) is hinged between the PCB placing box (2) and the cover plate (3).

4. The PCB testing tool of claim 1, wherein: a display (10) is fixed on the machine table (1).

5. The PCB testing tool of claim 1, wherein: the cover plate (3) is connected with a push rod (6) in a sliding mode, and a spring (11) is connected between the push rod (6) and the cover plate (3).