CN215297456U

CN215297456U - PCBA circuit board test fixture's clamping mechanism

Info

Publication number: CN215297456U
Application number: CN202121264796.3U
Authority: CN
Inventors: 汤谷辉; 汤雪辉
Original assignee: Shenzhen Sanhuichuang Electronics Co ltd
Current assignee: Shenzhen Sanhuichuang Electronics Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-24
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a PCBA circuit board test fixture's clamping mechanism involves anchor clamps design field, including workstation and locating component, the spout has been seted up at the outer wall middle part at workstation top, the inner wall slidable mounting movable plate of spout, the top outer wall fixed mounting of movable plate has the base plate, the rectangle mouth has been seted up to one side outer wall of base plate, the top inner wall of rectangle mouth rotates and is connected with the short-thread pole, the regulating block is installed to the outer wall spiro union of short-thread pole. The utility model discloses in through being provided with regulating block and short threaded rod, driven screw rod can slide at the slide opening inner wall of turning block, can keep away from the one end of regulating block with the dwang and can contact jig, if thickness is too big, can rotate adjust knob and can make the short threaded rod, and the short threaded rod is just reversing can control the regulating block and upwards remove to the one end height of control dwang, can press from both sides tight thicker tool this moment.

Description

PCBA circuit board test fixture's clamping mechanism

Technical Field

The utility model relates to an anchor clamps design field, in particular to PCBA circuit board test fixture's clamping mechanism.

Background

PCBA is short for English Printed Circuit Board Assembly, that is to say PCB blank Board passes SMT upper part, or passes through the whole process of DIP plug-in components, short for PCBA, Printed Circuit Board, also known as Printed Circuit Board, often uses English short for PCB, is important electronic part, is the supporter of electronic component, is the provider of electronic components Circuit connection. It is called a "printed" circuit board because it is made using electronic printing techniques. Before the advent of printed circuit boards, interconnections between electronic components were completed by direct wire connections. Circuit panels are now only available as effective experimental tools, and printed circuit boards have become an absolutely dominant position in the electronics industry. In the beginning of the 20 th century, in order to simplify the fabrication of electronic devices, reduce the number of wirings between electronic components, and reduce the fabrication cost, efforts have been made to replace the wiring method by printing. Over thirty years, engineers have proposed to use metal conductors as wiring on insulated substrates. In 1925, Charles Ducas in the united states printed a circuit pattern on an insulating substrate, and then successfully formed conductors for wiring by electroplating.

In the prior art, the clamping mechanisms of general PCBA circuit board test fixtures are all vertical clamping mechanisms, but the test fixtures with different thicknesses can be clamped only by replacing the clamping mechanisms, so that the complexity of operation is increased undoubtedly, and the time for testing is increased, therefore, the clamping mechanisms of the PCBA circuit board test fixtures are disclosed.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a PCBA circuit board test fixture's clamping mechanism to solve the problem that provides in the above-mentioned background art, can the tight thickness of quick adjustment clamp, thereby need not to change the mechanism.

In order to achieve the above purpose, the present application provides the following technical solutions: a clamping mechanism of a PCBA circuit board test fixture comprises a workbench and a positioning component, wherein a sliding groove is formed in the middle of the outer wall of the top of the workbench, a moving plate is installed on the inner wall of the sliding groove in a sliding mode, a base plate is fixedly installed on the outer wall of the top of the moving plate, a rectangular opening is formed in the outer wall of one side of the base plate, a short threaded rod is rotatably connected to the inner wall of the top of the rectangular opening, an adjusting block is installed on the outer wall of the short threaded rod in a threaded mode, an adjusting knob is fixedly installed on the outer wall of the top of the short threaded rod, one end of a rotating rod is rotatably installed on the outer wall of one side of the adjusting block, a rotating block is rotatably connected to the outer wall of one side of the base plate at the top end position, a sliding hole is formed in the outer wall of one side of the rotating rod, and the driven screw rod is slidably installed on the inner wall of the sliding hole, the positioning assembly is arranged on the outer wall of the top of the workbench and used for positioning and clamping the jig of the horizontal position.

By means of the structure: driven screw can slide at the slide opening inner wall of turning block, can keep away from the one end of regulating block with the dwang and can contact the tool, if thickness is too big, can rotate adjust knob and can make the short threaded rod, and the short threaded rod just reverses can control the regulating block and upwards move to the one end height of control dwang, can press from both sides tight thicker tool this moment.

Preferably, locking nut is installed to the outer wall spiro union of driven screw, locking nut is located the turning block with between the dwang.

Furthermore, the locking nut is rotated to push the driven screw rod, so that the rubber pressing block on the rotating rod clamps the jig.

Preferably, one end of the rotating rod, which is far away from the adjusting block, is fixedly provided with a rubber pressing block.

Furthermore, the surface of the rubber pressing block has good friction force, so that the friction force of the rotating rod can be increased, and the rotating rod can be protected.

Preferably, a support frame is fixed on the outer wall of the top of the workbench through screws, and the support frame is in contact with the workbench.

Furthermore, when the concentrated stress of the moving plate is overlarge, the force can be dispersed on the support frame, and the phenomenon that the moving plate is broken due to the overlarge concentrated stress is prevented.

Preferably, a threaded rod is rotatably mounted on the outer wall of one side of the sliding groove, a threaded hole is formed in the outer wall of one side of the moving plate, and the threaded rod is in threaded connection with the inner wall of the threaded hole.

Furthermore, the movable plate can be controlled to move forward and backward by rotating the threaded rod forward and backward.

Preferably, the both sides outer wall of workstation has all been seted up smooth mouthful, the rotation hole has been seted up to the inner wall of smooth mouthful, locating component includes two clamp plates and double threaded rod, double threaded rod's cylinder outer wall middle part is rotated and is installed the inner wall in rotation hole, the screw thread that double threaded rod's both ends were seted up is opposite, two the clamp plate is slidable mounting respectively two on the inner wall of smooth mouthful, the transmission hole has been seted up to one side outer wall of clamp plate, double threaded rod's outer wall spiro union is installed on the transmission hole inner wall.

Further, the double-end threaded rod rotates positively and negatively, and the two clamping plates can be controlled to be away from and close to each other, so that the center of the jig is positioned and clamped.

Preferably, a positioning plate is fixedly mounted at the edge of one side of the outer wall of the top of the workbench.

Furthermore, the positioning plate plays a positioning role and can position one side of the jig.

To sum up, the utility model discloses a technological effect and advantage:

1. the utility model discloses in, through being provided with regulating block and short threaded rod, driven screw rod can slide at the slide opening inner wall of turning block, can keep away from the one end of regulating block with the dwang and can contact tool, if thickness is too big, can rotate adjust knob and can make the short threaded rod, and the short threaded rod is just reversing can control the regulating block and upwards remove to the one end height of control dwang can press from both sides tight thicker tool this moment.

2. The utility model discloses in, through being provided with the support frame, when too big with the concentrated stress of movable plate, can prevent that movable plate concentrated stress is too big on dispersing the support frame with doing all can to the fracture.

Drawings

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

fig. 2 is a schematic rear perspective view of the present invention;

fig. 3 is a schematic front view of the substrate of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a work table; 2. positioning a plate; 3. a double-headed threaded rod; 4. a clamping plate; 5. rotating the block; 6. a substrate; 7. A support frame; 8. a threaded rod; 9. a driven screw; 10. pressing rubber blocks; 11. rotating the rod; 12. locking the nut; 13. moving the plate; 14. adjusting a knob; 15. an adjusting block; 16. a short threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1-4, the clamping mechanism of a PCBA circuit board test fixture comprises a worktable 1 and a positioning component, wherein the worktable 1 can be any plate-shaped structure in the prior art, such as a metal plate.

The middle part of the outer wall at the top of the workbench 1 is provided with a sliding groove, the inner wall of the sliding groove is provided with a movable plate 13 in a sliding mode, the outer wall of the top of the movable plate 13 is fixedly provided with a base plate 6, and the sliding groove can guarantee the base plate 6 to move horizontally.

Rectangle mouth has been seted up to one side outer wall of base plate 6, the top inner wall of rectangle mouth rotates and is connected with short threaded rod 16, regulating block 15 is installed to short threaded rod 16's outer wall spiro union, short threaded rod 16's top outer wall fixed mounting has adjust knob 14, one side outer wall of regulating block 15 rotates the one end of installing dwang 11, one side outer wall of base plate 6 is located the top position and rotates and is connected with turning block 5, the slide opening has been seted up to turning block 5's top outer wall, the outer wall on one side of dwang 11 rotates the one end that is connected with driven screw 9, driven screw 9 slidable mounting is at the inner wall of slide opening, locating component sets up on the top outer wall of workstation 1, a tool for the tight level of location clamp.

By means of the structure: driven screw 9 can slide at the slide opening inner wall of turning block 5, can keep away from the one end of regulating block 15 with dwang 11 and can contact the tool, if thickness is too big, can rotate adjust knob 14 and can make short threaded rod 16, and short threaded rod 16 just reverses and can control regulating block 15 and upwards move to the one end height of control dwang 11, can press from both sides tight thicker tool this moment.

As a preferred embodiment in this embodiment, a lock nut 12 is threadedly mounted on an outer wall of the driven screw 9, the lock nut 12 is located between the rotating block 5 and the rotating rod 11, and the lock nut 12 is rotated to push the driven screw 9, so that the rubber pressing block 10 on the rotating rod 11 clamps the jig.

As a preferred embodiment in this embodiment, a rubber pressing block 10 is fixedly installed at one end of the rotating rod 11 away from the adjusting block 15, and the surface of the rubber pressing block 10 has a good friction force, so that the friction force of the rotating rod 11 can be increased, and the rotating rod 11 can be protected.

As a preferable embodiment in this embodiment, the support frame 7 is fixed to the top outer wall of the table 1 by screws, and the support frame 7 is in contact with the table 1, so that when the concentrated stress of the moving plate 13 is too large, the force is dispersed to the support frame 7, and the moving plate 13 is prevented from being broken due to the concentrated stress.

As a preferred embodiment in this embodiment, a threaded rod 8 is rotatably mounted on an outer wall of one side of the sliding groove, a threaded hole is formed in an outer wall of one side of the moving plate 13, the threaded rod 8 is threadedly mounted on an inner wall of the threaded hole, and the moving plate 13 can be controlled to move forward and backward by rotating the threaded rod 8 in forward and reverse directions.

As an optimal implementation manner in this embodiment, sliding openings have all been seted up to the both sides outer wall of workstation 1, the rotation hole has been seted up to the inner wall of sliding opening, locating component includes two clamp plates 4 and double threaded rod 3, the inner wall in rotation hole is installed in the rotation of the cylinder outer wall middle part of double threaded rod 3, the screw thread that the both ends of double threaded rod 3 were seted up is opposite, two clamp plates 4 slidable mounting respectively is on the inner wall of two sliding openings, the transmission hole has been seted up to one side outer wall of clamp plate 4, the outer wall spiro union of double threaded rod 3 is installed on the transmission hole inner wall, double threaded rod 3 just reverses, can control two clamp plates 4 and keep away from each other and be close to, thereby it is tight to carry out the central location clamp of tool.

As a preferred embodiment in this embodiment, a positioning plate 2 is fixedly mounted at an edge of one side of an outer wall of the top of the worktable 1, and the positioning plate 2 plays a positioning role and can position one side of the jig.

This practical theory of operation:

driven screw 9 can slide at the slide opening inner wall of turning block 5, can keep away from the one end of regulating block 15 with dwang 11 and can contact the tool, if thickness is too big, can rotate adjust knob 14 and can make short threaded rod 16, and short threaded rod 16 just reverses and can control regulating block 15 and upwards move to the one end height of control dwang 11, can press from both sides tight thicker tool this moment.

The surface of the rubber pressing block 10 has good friction force, so that the friction force of the rotating rod 11 can be increased, and the rotating rod 11 can be protected; when the concentrated stress of the moving plate 13 is overlarge, the force is dispersed on the support frame 7, so that the moving plate 13 is prevented from being broken due to the overlarge concentrated stress; the double-end threaded rod 3 is just reversing, can control two clamp plates 4 and keep away from each other and be close to carry out the central positioning of tool and press from both sides tightly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a PCBA circuit board test fixture's clamping mechanism, includes workstation (1) and locating component, its characterized in that: the outer wall middle part at workstation (1) top has been seted up the spout, the inner wall slidable mounting movable plate (13) of spout, the top outer wall fixed mounting of movable plate (13) has base plate (6), the rectangle mouth has been seted up to one side outer wall of base plate (6), the top inner wall of rectangle mouth rotates and is connected with short threaded rod (16), regulating block (15) is installed to the outer wall spiro union of short threaded rod (16), the top outer wall fixed mounting of short threaded rod (16) has adjust knob (14), one side outer wall of regulating block (15) rotates and installs the one end of dwang (11), one side outer wall of base plate (6) is located top position and rotates and is connected with turning block (5), the top outer wall of turning block (5) has been seted up the slide opening, outer wall on one side of dwang (11) rotates and is connected with the one end of driven screw rod (9), the driven screw rod (9) is slidably mounted on the inner wall of the sliding hole, and the positioning assembly is arranged on the outer wall of the top of the workbench (1) and used for positioning and clamping a horizontal jig.

2. The clamping mechanism of a PCBA circuit board test fixture of claim 1, wherein: locking nut (12) are installed to the outer wall spiro union of driven screw (9), locking nut (12) are located turning block (5) with between dwang (11).

3. The clamping mechanism of a PCBA circuit board test fixture of claim 1, wherein: one end of the rotating rod (11) far away from the adjusting block (15) is fixedly provided with a rubber pressing block (10).

4. The clamping mechanism of a PCBA circuit board test fixture of claim 3, wherein: the top outer wall of workstation (1) is through the fix with screw has support frame (7), support frame (7) with workstation (1) contacts.

5. The clamping mechanism of a PCBA circuit board test fixture of claim 1, wherein: one side outer wall of the sliding groove is rotatably provided with a threaded rod (8), one side outer wall of the moving plate (13) is provided with a threaded hole, and the threaded rod (8) is in threaded connection with the inner wall of the threaded hole.

6. The clamping mechanism of a PCBA circuit board test fixture of claim 1, wherein: smooth mouthful has all been seted up to the both sides outer wall of workstation (1), the rotation hole has been seted up to the inner wall of smooth mouthful, locating component includes two clamp plates (4) and double threaded rod (3), the cylinder outer wall middle part of double threaded rod (3) is rotated and is installed the inner wall in rotation hole, the screw thread that the both ends of double threaded rod (3) were seted up is opposite, two clamp plate (4) slidable mounting respectively is two on the inner wall of smooth mouthful, the transmission hole has been seted up to one side outer wall of clamp plate (4), the outer wall spiro union of double threaded rod (3) is installed on the transmission hole inner wall.

7. The clamping mechanism of PCBA circuit board test fixture of claim 6, wherein: and a positioning plate (2) is fixedly arranged at the edge of one side of the outer wall of the top of the workbench (1).