CN217505917U

CN217505917U - PCB test fixture convenient to fix

Info

Publication number: CN217505917U
Application number: CN202123331872.0U
Authority: CN
Inventors: 金海龙
Original assignee: Tianjin Yusheng Tools And Moulds Co ltd
Current assignee: Tianjin Yusheng Tools And Moulds Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-09-27
Anticipated expiration: 2031-12-28

Abstract

The utility model is suitable for a PCB processing is with supplementary technical field, discloses a PCB test fixture convenient to it is fixed, including detecting the frame, it has the board of placing to detect the inboard top slidable mounting of frame, place the equal fixed mounting in both sides surface about board bottom and have a driving rack, and the driving rack bottom runs through movable mounting inside detecting the frame bottom. The utility model discloses owing to place the board bottom and install the driving rack, and combine driving rack and drive gear's meshing mutually, and then can be through pressing the continuation of placing the board and move, can drive the rotation lead screw and rotate thereupon, make the rotation lead screw can rotate thereupon and drive two sets of movable sleeve horizontal migration, and then make two sets of tight boards synchronous phase-to-phase shift and support tight spacing processing to PCB board side, reduce the operator to PCB board clamping required time and step in, guarantee the stability of PCB board in follow-up time measuring of examining, and is comparatively practical, and is suitable for extensively promoting and using.

Description

PCB test fixture convenient to fix

Technical Field

The utility model is suitable for a PCB board processing is with supplementary technical field, in particular to PCB board test fixture convenient to it is fixed.

Background

At present, a PCB, which is called a printed circuit board in chinese name, is an important electronic component, is a support body of an electronic component, is a carrier for electrical connection of the electronic component, and is called a "printed" circuit board because it is manufactured by using an electronic printing technique, and the PCB needs to be tested during production to ensure the outgoing quality of the PCB.

According to patent (the publication number is "CN 213903599U"), PCB board test fixture convenient to it is fixed, including the loading board, the activity of loading board lower extreme is provided with the base, loading board upper end four corners edge fixed mounting has the fixed block, the activity of fixed block upper end is provided with the movable block, the activity of movable block upper end is provided with the bolt, loading board lower extreme fixed mounting has the first stopper of symmetry, base upper end fixed mounting has the second stopper, the cell body has been seted up to the fixed on the movable block medial surface. This PCB board test fixture convenient to it is fixed, through setting up the fixed block, the effect to the spacing installation of PCB board has been realized, do benefit to the quick installation of PCB board, through setting up the movable block, first thread groove, second thread groove and bolt, the effect of movable block and fixed block quick assembly disassembly has been realized, the equipment is convenient, through setting up the spring, ejector pad and extrusion head, the flexible extrusion head of the elastic action of having realized utilizing the spring is with the effect of the quick fixed clamping of PCB board, it is fixed convenient fast, do benefit to the use.

However, there are still some disadvantages in the above patents: when fixing the clamping to the PCB board in the above-mentioned patent, the elasticity effect of using the spring carries out the clamping to the circuit board, and because the spring is whole to be an elastic mechanism, and then its stability is not enough, very easily receive outside pressure move the back and make the circuit board discover corresponding displacement influence subsequent detection accuracy to and when carrying out the clamping to the circuit board, need carry out the substep to four group's extrusion heads and promote, and then influence the clamping efficiency of circuit board. Therefore, a PCB testing fixture convenient to fix is provided.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a PCB board test fixture convenient to it is fixed can effectively solve the problem in the background art.

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

the utility model provides a PCB board test fixture convenient to it is fixed, includes and detects the frame, it has the board of placing to detect inboard top slidable mounting of frame, place the equal fixed mounting in both sides surface about the board bottom and have a drive rack, and drive rack bottom runs through movable mounting inside detecting the frame bottom, it all rotates to install and rotates the lead screw to detect both ends surface about the inboard bottom of frame, every it has cup jointed movable sleeve, every to rotate the equal activity of lead screw side surface movable sleeve top surface equal fixed mounting has a connecting rod, every the equal fixed mounting in connecting rod top surface supports tight board, every it installs drive gear to rotate the equal fixed inlaying in lead screw side surface.

Preferably, the surfaces of the left side and the right side of the bottom of the detection frame are fixedly provided with hollow pipes, the top end of the inner side of each hollow pipe penetrates through the movable rod, and the top end of the movable rod is fixedly connected with the bottom of the transmission rack.

Preferably, the inner side of each hollow tube is movably sleeved with a return spring, and the top end of the return spring is movably attached to the surface of the bottom end of the movable rod.

Preferably, an electromagnet is fixedly installed at the middle end of the inner side of each hollow pipe, and the bottom of the movable rod penetrates through and is movably installed inside the electromagnet.

Preferably, the movable grooves are formed in the left side and the right side of the placing plate, and the connecting rods penetrate through the movable grooves and are movably mounted inside the movable grooves.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a PCB board test fixture convenient to it is fixed, because place the board bottom and install the driving rack, and combine driving rack and drive gear's mesh mutually, and then can move through the continuous pressure to placing the board, can drive the rotation lead screw and rotate thereupon, make the rotation lead screw can rotate thereupon and drive two sets of movable sleeve horizontal migration, and then make two sets of tight boards of supporting move in opposite directions in step and support tight spacing processing to PCB board side, when reducing operator to PCB board clamping required time and step, guarantee the PCB board in the stability of follow-up detection time measuring.

2. The utility model discloses a PCB board test fixture convenient to it is fixed through being connected driving rack with the movable rod, and then can be after disappearing the external pressure to placing the board surface, knot and reset spring's reverse promotion, can guarantee to place the board and support the position of tight board and can recover in step, guarantee the follow-up used repeatedly of whole anchor clamps.

Drawings

Fig. 1 is a schematic view of an overall front view cross-sectional structure of a PCB testing fixture convenient for fixing according to the present invention;

fig. 2 is the utility model relates to a PCB board test fixture's board of placing overlooks section structure schematic diagram convenient to it is fixed.

Reference numerals: 1. detecting a frame; 2. placing the plate; 3. rotating the screw rod; 4. a drive rack; 5. a transmission gear; 6. a movable sleeve; 7. a connecting rod; 8. a movable groove; 9. a propping plate; 10. a hollow tube; 11. a movable rod; 12. a return spring; 13. an electromagnet.

Detailed Description

As shown in fig. 1-2, a PCB board test fixture convenient to it is fixed, including detecting frame 1, it places board 2 to detect 1 inboard top slidable mounting of frame, it has transmission rack 4 to place 2 bottom left and right sides equal fixed mounting in surface of board, and runs through movable mounting inside 1 bottom of detection frame 4 bottom of transmission rack, detect 1 inboard bottom left and right sides surface of frame and all rotate and install rotation lead screw 3, every it has cup jointed movable sleeve 6, every to rotate 3 side surfaces of lead screw equal activity in surface of movable sleeve 6 top surface equal fixed mounting have connecting rod 7, every 7 top surface equal fixed mounting of connecting rod have support tight board 9, every it installs drive gear 5 to rotate 3 side surface equal fixed inlays of lead screw.

As shown in fig. 1 and 2, in this embodiment, the transmission rack 2 is installed at the bottom of the placing plate 2, and the transmission rack 2 is engaged with the transmission gear 5, so that the placing plate 2 can be continuously pressed to drive the rotating screw rod 3 to rotate therewith, and the rotating screw rod 3 can rotate therewith to drive the two sets of movable sleeves 6 to move horizontally, so that the two sets of abutting plates 9 synchronously move in opposite directions to abut against the side edges of the PCB, thereby reducing the time and steps required by an operator to clamp the PCB, and ensuring the stability of the PCB in subsequent detection.

In this embodiment (shown in fig. 1 and 2), the surfaces of the left side and the right side of the bottom of the detection frame 1 are fixedly provided with hollow tubes 10, the top end of the inner side of each hollow tube 10 is movably provided with a movable rod 11 in a penetrating manner, and the top end of each movable rod 11 is fixedly connected with the bottom of the transmission rack 4, so that the movable rods 11 can be driven to move synchronously by the movement of the placement plate 2.

In this embodiment (as shown in fig. 1 and 2), each hollow tube 10 is movably sleeved with a return spring 12 inside, and the top end of the return spring 12 is movably attached to the bottom end surface of the movable rod 11, and the transmission rack 4 is connected with the movable rod 11, so that after the external pressure on the surface of the placing plate 2 disappears, the position of the placing plate 2 and the abutting plate 9 can be synchronously restored by reverse pushing of the return spring 12, and subsequent reuse of the whole clamp is ensured.

In this embodiment (as shown in fig. 1 and fig. 2), an electromagnet 13 is fixedly installed at the middle end of the inner side of each hollow tube 10, and the bottom of the movable rod 11 is movably installed inside the electromagnet 13 in a penetrating manner, so that the movable rod 11 is prevented from moving arbitrarily to affect the use of the abutting plate 9.

In this embodiment (shown by fig. 1 and 2), the movable grooves 8 are formed in the left and right sides of the placing plate 2, and the connecting rods 7 penetrate through the movable grooves 8 to be movably mounted inside the movable grooves 8, so that the positions of the connecting rods 7 can be horizontally moved.

It should be noted that the utility model is a PCB testing clamp convenient for fixing, the components are all universal standard components or components known by technicians in this neighborhood, the structure and principle are all known by technical manuals or known by routine experimental methods, when in work, after placing the PCB to be clamped on the surface of the placing plate 2, continuously pressing the placing plate 2, combining the meshing of the driving rack 2 and the driving gear 5, making two groups of tightening plates 9 synchronously move in opposite directions to carry out tightening limiting treatment on the side edges of the PCB, then opening the electromagnet 13 through an external control switch to complete the clamping treatment of the PCB, compared with the traditional auxiliary technology for processing the PCB, the device is provided with the driving rack 2 at the bottom of the placing plate 2 and combining the meshing of the driving rack 2 and the driving gear 5, and then can drive the rotation lead screw 3 and rotate thereupon through the continuous pressure to placing board 2 for rotation lead screw 3 can rotate thereupon and drive 6 horizontal migration of two sets of movable sleeve, and then makes two sets of tight boards 9 synchronous phase to each other removal and support tight spacing processing to PCB board side, when reducing operator to PCB board clamping required time and step, guarantees the stability of PCB board when follow-up detection.

Claims

1. The utility model provides a PCB board test fixture convenient to it is fixed, includes detection frame (1), its characterized in that: it has places board (2) to detect inboard top slidable mounting of frame (1), place board (2) bottom about the equal fixed mounting in both sides surface have drive rack (4), and drive rack (4) bottom run through movable mounting inside detecting frame (1) bottom, detect frame (1) inboard bottom about both ends surface all rotate install rotate lead screw (3), every rotate lead screw (3) side surface equal activity cup jointed movable sleeve (6), every movable sleeve (6) top surface equal fixed mounting has connecting rod (7), every connecting rod (7) top surface equal fixed mounting has to support tight board (9), every rotate lead screw (3) side surface equal fixed mounting has drive gear (5).

2. The PCB board test fixture facilitating fixing of claim 1, wherein: the surface of the left side and the surface of the right side of the bottom of the detection frame (1) are respectively fixedly provided with a hollow tube (10), the top end of the inner side of each hollow tube (10) is respectively penetrated through and movably provided with a movable rod (11), and the top end of each movable rod (11) is fixedly connected with the bottom of the transmission rack (4).

3. The PCB board test fixture facilitating fixing of claim 2, wherein: the inner side of each hollow pipe (10) is movably sleeved with a return spring (12), and the top end of the return spring (12) is movably attached to the surface of the bottom end of the movable rod (11).

4. The PCB board test fixture facilitating fixing of claim 2, wherein: an electromagnet (13) is fixedly installed at the middle end of the inner side of each hollow pipe (10), and the bottom of the movable rod (11) penetrates through the electromagnet (13) to be movably installed inside.

5. The PCB board test fixture convenient to fix of claim 1, wherein: the movable grooves (8) are formed in the left side and the right side of the placing plate (2), and the connecting rods (7) penetrate through the movable grooves and are movably mounted in the movable grooves (8).