CN211348321U

CN211348321U - Clamping mechanism for test circuit board

Info

Publication number: CN211348321U
Application number: CN201921470392.2U
Authority: CN
Inventors: 徐诗柱
Original assignee: Shenzhen Xingzifan Electronic Co ltd
Current assignee: Shenzhen Xingzifan Electronic Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-08-25
Anticipated expiration: 2029-09-05

Abstract

The utility model provides a clamping mechanism for a test circuit board, which comprises a bottom plate, a thread through hole and a thread blind hole; the four included angles of the upper end surface of the bottom plate are respectively provided with one mounting hole, and the bottom plate is mounted on the workbench through the mounting holes; a strut sliding sleeve is fixedly connected to the center of the upper end face of the bottom plate, and a square strut is slidably connected to the inner side of the strut sliding sleeve; and the upper end surfaces of the middle parts of the first clamping block and the second clamping block are respectively provided with a second spring, and the upper ends of the second springs are tightly attached to the lower end surfaces of the two rectangular clamping plates respectively. The connecting block rotates and connects the position between two disc opposite faces, is favorable to the rotation through the connecting block, makes the backup pad also follow the rotation in the connecting block upper end, then fixes the connecting block through second fastening hand wheel to make the required inclination of regulation that the circuit board of centre gripping can be nimble convenient between first clamp splice and the second clamp splice, reduced the tired sense that the tester neck caused when test circuit board.

Description

Clamping mechanism for test circuit board

Technical Field

The utility model belongs to the technical field of circuit board clamping mechanism, more specifically say, in particular to test circuit board clamping mechanism.

Background

The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout.

As in application No.: CN201721712479.7 the utility model discloses a test circuit board clamping mechanism, including the clamping mechanism body, press from both sides tight piece and work platen, be provided with the work platen on the clamping mechanism body, the top elastic connection of compression spring and recess is passed through at the top of preforming. The utility model discloses in, this clamping mechanism's bottom is equipped with the screw shaft, the screw sleeve has connect two scroll covers on the screw shaft, and the top of scroll cover all welds through sliding block and tight piece, through artifical hand crank, the screw axis can rotate, thereby make two scroll covers take and press from both sides tight piece and slide in opposite directions, slide in opposite directions through two tight pieces of clamp, the swift centre gripping of completion circuit board is fixed, and the spring action through compression spring, make the preforming fix the top of circuit board, this clamping mechanism, moreover, the steam generator is simple in structure, not only can satisfy the tight fixing of clamp of the circuit board of different specifications, the fixed process convenient and fast simultaneously, the effectual fixed efficiency that has improved.

Based on the above patent search, and the discovery of the prior art apparatus, the circuit board is usually tested with the aid of a circuit board clamping mechanism. And current circuit board clamping mechanism carries out the level with the circuit board when the auxiliary test circuit board and presss from both sides tightly generally, so the tester can only test the circuit board perpendicularly downwards through overlooking, not only can not satisfy the multi-angle test, and long-time low head test causes fatigue to the tester neck, and current circuit board clamping mechanism takes time and energy when pressing from both sides tightly moreover, influences the efficiency of software testing of circuit board.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a clamping mechanism for a test circuit board is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a test circuit board clamping mechanism to solve current circuit board clamping mechanism when supplementary test circuit board, generally all carry out the circuit board level and press from both sides tightly, so the tester can only test the circuit board perpendicularly downwards through overlooking, not only can not satisfy the multi-angle test, and long-time low head test leads to the fact fatigue to the tester neck, moreover current circuit board clamping mechanism wastes time and energy when pressing from both sides tightly, influence the efficiency of software testing's of circuit board problem.

The utility model discloses test circuit board clamping mechanism's purpose and efficiency are reached by following specific technological means:

the test circuit board clamping mechanism comprises a bottom plate, a mounting hole, a support sliding sleeve, a thread thickening block, a square support, a spherical groove, a support plate, a connecting block, a rectangular block, a first clamping block, a second clamping block, a sliding rail, a limiting block, a hand-screwed bolt, a first spring, a disc, a half annular ring opening, a first fastening hand wheel, a second spring, a rectangular clamping plate, a T-shaped sliding groove, a T-shaped sliding block, a thread through hole and a thread blind hole; the four included angles of the upper end surface of the bottom plate are respectively provided with one mounting hole, and the bottom plate is mounted on the workbench through the mounting holes; a strut sliding sleeve is fixedly connected to the center of the upper end face of the bottom plate, and a square strut is slidably connected to the inner side of the strut sliding sleeve; the upper side of the rear end face of the strut sliding sleeve is fixedly connected with a threaded thickening block, and the rear end face of the threaded thickening block is provided with a threaded through hole communicated with the inner side of the strut sliding sleeve; ten spherical grooves are formed in the rear end face of the square support in a rectangular array shape, and two discs are fixedly connected to the upper end face of the square support in a bilateral symmetry shape; the right end face of one disc on the right side is provided with a half annular ring opening; the center part of the lower end face of the supporting plate is fixedly connected with a connecting block, and the connecting block is rotatably connected between the opposite surfaces of the two discs through a rotating shaft; the right end face of the connecting block is provided with the threaded blind hole, and the connecting block is connected with the second fastening hand wheel penetrating through the opening of the half annular ring through the threaded blind hole; the rear side of the upper end face of the supporting plate is fixedly connected with a rectangular block, and the front side of the upper end face of the supporting plate is fixedly connected with a first clamping block; the first clamping block and the rectangular block are opposite to each other to form a bilateral symmetry shape and are fixedly connected with two slide rails, and the peripheral surfaces of the two slide rails are connected with a second clamping block in a sliding manner; the outer peripheral surfaces of the two sliding rails are connected with one limiting block in a sliding mode, and the two limiting blocks are located between the opposite surfaces of the rectangular block and the second clamping block; the first spring is mounted on the outer peripheral surface of each sliding rail, and the two first springs are located between the opposite surfaces of the second clamping block and the limiting block; the opposite surfaces of the middle parts of the first clamping block and the second clamping block are respectively provided with two T-shaped sliding grooves, and the first clamping block and the second clamping block are respectively connected with one rectangular clamping plate in a sliding mode through the T-shaped sliding grooves; and the upper end surfaces of the middle parts of the first clamping block and the second clamping block are respectively provided with a second spring, and the upper ends of the second springs are tightly attached to the lower end surfaces of the two rectangular clamping plates respectively.

Furthermore, the thread thickening block is connected with one first fastening hand wheel through a thread through hole, and a hemispherical clamping block is arranged at the front end of the first fastening hand wheel.

Furthermore, when the left end face of the second fastening hand wheel is tightly attached to the right end face of the connecting block, the connecting block is in a fixed state between the opposite faces of the two discs.

Furthermore, two equal fixedly connected with of rectangle splint side T type slider, and per two T type slider is a set of respectively with the left side two T type spout and right side two T type spout sliding connection.

Furthermore, the number of the second springs is six, and the six second springs are symmetrically distributed between the first clamping block and the second clamping block.

Furthermore, the limiting block upper end face is provided with a threaded through hole, and the limiting block is connected with one hand-screwed bolt through the threaded through hole.

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

the connecting block rotates and connects the position between two disc opposite faces, is favorable to the rotation through the connecting block, makes the backup pad also follow the rotation in the connecting block upper end, then fixes the connecting block through second fastening hand wheel to make the required inclination of regulation that the circuit board of centre gripping can be nimble convenient between first clamp splice and the second clamp splice, reduced the tired sense that the tester neck caused when test circuit board.

First spring mounting is in second clamp splice rear position, and through stopper slip around on the slide rail, the regulation that makes the tight dynamics of clamp between first clamp splice and the second clamp splice nimble through holding first clamp splice and the equal sliding connection of second clamp splice holder end has rectangular splint, and the second spring is installed to rectangular splint lower extreme, and is more convenient when making circuit board clamping mechanism press from both sides tight circuit board, has improved the tight efficiency of clamp of circuit board on circuit board clamping mechanism.

Square pillar sliding connection is inside the pillar sliding sleeve, through becoming flexible with first fastening hand wheel, makes square pillar lose fixedly inside the pillar sliding sleeve, then slides square pillar from top to bottom through manual again to make circuit board clamping mechanism can carry out nimble regulation according to the tester of different heights, improved circuit board clamping mechanism's practicality.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic axial view of the present invention.

Fig. 3 is a schematic diagram of a partially enlarged structure at a in fig. 1 according to the present invention.

Fig. 4 is a schematic sectional structural view of the first clamping block and the second clamping block of the present invention.

Fig. 5 is an axial view structural diagram of the rectangular clamping plate of the present invention.

Fig. 6 is a schematic view of the sectional structure of the limiting block of the present invention.

Fig. 7 is a schematic view of the structure of the supporting plate and the connecting block of the present invention.

Fig. 8 is a schematic cross-sectional view of the pillar sliding sleeve of the present invention.

Fig. 9 is a schematic view of the first fastening hand wheel of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base plate; 101. mounting holes; 2. a strut sliding sleeve; 201. a thread thickening block; 3. a square pillar; 301. a spherical groove; 4. a support plate; 401. connecting blocks; 5. a rectangular block; 6. a first clamping block; 7. a second clamp block; 8. a slide rail; 9. a limiting block; 10. screwing the bolt by hand; 11. a first spring; 12. a disc; 1201. one half of the annular ring is opened; 13. a first tightening hand wheel; 14. a second fastening hand wheel; 15. a second spring; 16. a rectangular splint; 17. a T-shaped chute; 18. a T-shaped slider; 19. a threaded through hole; 20. and (4) blind threaded holes.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 9:

the utility model provides a test circuit board clamping mechanism, including bottom plate 1, mounting hole 101, pillar sliding sleeve 2, screw thread thickening piece 201, square pillar 3, sphere recess 301, backup pad 4, connecting block 401, rectangular block 5, first clamp splice 6, second clamp splice 7, slide rail 8, stopper 9, hand screw bolt 10, first spring 11, disc 12, half annular ring opening 1201, first fastening hand wheel 13, second fastening hand wheel 14, second spring 15, rectangular splint 16, T type spout 17, T type slider 18, screw thread through-hole 19 and screw thread blind hole 20; the four included angles of the upper end surface of the bottom plate 1 are respectively provided with one mounting hole 101, and the bottom plate 1 is mounted on the workbench through the mounting holes 101; a strut sliding sleeve 2 is fixedly connected to the central part of the upper end face of the bottom plate 1, and a square strut 3 is slidably connected to the inner side of the strut sliding sleeve 2, as shown in the attached drawing 1; the upper side of the rear end face of the strut sliding sleeve 2 is fixedly connected with a threaded thickening block 201, and the rear end face of the threaded thickening block 201 is provided with one threaded through hole 19 communicated with the inner side of the strut sliding sleeve 2, as shown in the attached drawing 8; ten spherical grooves 301 are formed in the rear end face of the square support 3 in a rectangular array shape, and two discs 12 are fixedly connected to the upper end face of the square support 3 in a bilateral symmetry shape, as shown in fig. 2; a half annular ring opening 1201 is formed in the right end face of one of the right discs 12, as shown in fig. 2; the central part of the lower end face of the supporting plate 4 is fixedly connected with a connecting block 401, and the connecting block 401 is rotatably connected between the opposite faces of the two discs 12 through a rotating shaft; the right end face of the connecting block 401 is provided with the threaded blind hole 20, as shown in fig. 7, and the connecting block 401 is connected with the second fastening hand wheel 14 penetrating through the half annular ring opening 1201 through the threaded blind hole 20; the rear side of the upper end face of the supporting plate 4 is fixedly connected with a rectangular block 5, and the front side of the upper end face of the supporting plate 4 is fixedly connected with a first clamping block 6; the first clamping block 6 and the rectangular block 5 are in bilateral symmetry and are fixedly connected with two slide rails 8, and the peripheral surfaces of the two slide rails 8 are in sliding connection with a second clamping block 7, as shown in the attached drawing 1; the outer peripheral surfaces of the two slide rails 8 are connected with one limiting block 9 in a sliding mode, and the two limiting blocks 9 are located between the opposite surfaces of the rectangular block 5 and the second clamping block 7; the peripheral surface of each slide rail 8 is provided with one first spring 11, as shown in fig. 1, and the two first springs 11 are located between the opposite surfaces of the second clamping block 7 and the limiting block 9; two T-shaped sliding grooves 17 are formed in opposite surfaces of the middle portions of the first clamping block 6 and the second clamping block 7, as shown in the attached drawing 4, and the first clamping block 6 and the second clamping block 7 are connected with one rectangular clamping plate 16 in a sliding mode through the T-shaped sliding grooves 17; and the upper end surfaces of the middle parts of the first clamping block 6 and the second clamping block 7 are respectively provided with a second spring 15, and the upper ends of the second springs 15 are respectively tightly attached to the lower end surfaces of the two rectangular clamping plates 16.

The thread thickening block 201 is connected with one first fastening hand wheel 13 through the thread through hole 19, and a hemispherical fixture block is arranged at the front end of the first fastening hand wheel 13, as shown in fig. 9, by screwing the first fastening hand wheel 13, the hemispherical fixture block arranged at the front end of the first fastening hand wheel 13 is closely attached to the spherical groove 301 formed in the rear end face of the square support 3, so that the square support 3 with the height adjusted is more stable when being fixed on the support sliding sleeve 2.

When the left end face of the second fastening hand wheel 14 is tightly attached to the right end face of the connecting block 401, the connecting block 401 is in a fixed state between the opposite faces of the discs 12, the connecting block 401 after angle adjustment is more convenient to fix through the second fastening hand wheel 14, and the connecting block 401 rotates through the connecting block 401, so that the circuit board clamped between the first clamping block 6 and the second clamping block 7 can be flexibly and conveniently adjusted to form a required inclination angle, and the fatigue caused by the neck of a tester when the circuit board is tested is reduced.

Wherein, two equal fixedly connected with of 16 a side of rectangle splint is two T type slider 18, as shown in figure 5, and per two T type slider 18 is a set of respectively with the left side two T type spout 17 and right side two T type spout 17 slides and is connected, makes two through the sliding connection of T type slider 18 and T type spout 17 rectangle splint 16 is more steady when sliding from top to bottom in first clamp splice 6 and the 7 holder mouth of second clamp splice respectively, reliability when having improved the tight circuit board of rectangle splint 16.

Wherein, the quantity of second spring 15 is six, and six second spring 15 is the symmetrical form and distributes between first clamp splice 6 and second clamp splice 7, as shown in figure 1, through second spring 15, makes rectangle splint 16 have better clamping force when pressing from both sides tight circuit board to it is more stable when the test to make the circuit board, has improved the fastening of circuit board clamping mechanism when pressing from both sides tight circuit board.

Wherein, stopper 9 up end seted up screw thread through-hole 19, as shown in figure 6, and stopper 9 is connected with one through screw thread through-hole 19 bolt 10 is twisted to the hand, and through twisting bolt 10 with the hand not hard up, makes stopper 9 lose fixedly, and slides around through carrying out stopper 9 on slide rail 8 again, makes the regulation that the tight dynamics of clamp between first clamp splice 6 and the second clamp splice 7 can be nimble, has improved the flexibility of circuit board clamping mechanism when pressing from both sides the tight not unidimensional circuit board.

The specific use mode and function of the embodiment are as follows:

in the utility model, the bottom plate 1 is fixed on the workbench by the fasteners passing through the mounting holes 101 arranged at the four included angles of the upper end surface of the bottom plate 1; then, the first fastening hand wheel 13 is loosened manually, so that the square support 3 is not fixed inside the support sliding sleeve 2; then the square pillar 3 is adjusted in a sliding way up and down, so that the circuit board clamping mechanism can be flexibly adjusted according to testers with different heights; after the height of the square pillar 3 is adjusted, the square pillar is fixed through the first fastening hand wheel 13, so that the practicability of the circuit board clamping mechanism is improved; when the inclination angle of the supporting plate 4 is adjusted, the second fastening hand wheel 14 is loosened manually to loose the connecting block 401, and then the connecting block 401 is rotated between the two circular discs 12, so that the circuit board clamped between the first clamping block 6 and the second clamping block 7 can flexibly and conveniently adjust the required inclination angle, and the fatigue feeling caused by the neck of a tester when the circuit board is tested is reduced; after the inclination angle of the supporting plate 4 is adjusted, the second fastening hand wheel 14 is fastened, so that the connecting block 401 is fixed between the two discs 12;

when the circuit board is clamped, the second clamping block 7 is pulled backwards manually, then one side of the circuit board is inserted between the upper end face of one rectangular clamping plate 16 on the front side and the top end face of the inner side of the first clamping block 6, and one side of the circuit board is clamped by one rectangular clamping plate 16 on the front side under the action of three second springs 15 on the front side; then the other end of the circuit board is inserted between the top end face of the inner side of the pulled second clamping block 7 and the upper end face of one rectangular clamping plate 16 at the rear side, under the action of three second springs 15 at the rear side, the other side of the circuit board is clamped by one rectangular clamping plate 16 at the rear side, and finally the circuit board is tested; when the clamping force between the first clamping block 6 and the second clamping block 7 is adjusted according to circuit boards with different widths, two hand-screwed bolts 10 are loosened manually in sequence, so that the two limiting blocks 9 are not fixed; then slide two stopper 9 on two slide rails 8 through manual back and forth, make the tight dynamics of clamp between second clamp splice 7 and the first clamp splice 6 obtain nimble regulation, the rethread is manual to be twisted bolt 10 with two hands in proper order and fasten after adjusting, make two stopper 9 obtain fixed can to can adjust different tight dynamics of clamp according to the circuit board of different width, improved circuit board clamping mechanism's flexibility.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Test circuit board clamping mechanism, its characterized in that: the clamping mechanism for the test circuit board comprises a base plate (1), a mounting hole (101), a strut sliding sleeve (2), a thread thickening block (201), a square strut (3), a spherical groove (301), a support plate (4), a connecting block (401), a rectangular block (5), a first clamping block (6), a second clamping block (7), a sliding rail (8), a limiting block (9), a hand-screwed bolt (10), a first spring (11), a disc (12), a half annular ring opening (1201), a first fastening hand wheel (13), a second fastening hand wheel (14), a second spring (15), a rectangular clamping plate (16), a T-shaped sliding groove (17), a T-shaped sliding block (18), a thread through hole (19) and a thread blind hole (20); the four included angles of the upper end surface of the bottom plate (1) are respectively provided with one mounting hole (101), and the bottom plate (1) is mounted on the workbench through the mounting holes (101); a support sliding sleeve (2) is fixedly connected to the center of the upper end face of the bottom plate (1), and a square support (3) is slidably connected to the inner side of the support sliding sleeve (2); the upper side of the rear end face of the strut sliding sleeve (2) is fixedly connected with a threaded thickening block (201), and the rear end face of the threaded thickening block (201) is provided with a threaded through hole (19) communicated with the inner side of the strut sliding sleeve (2); ten spherical grooves (301) are formed in the rear end face of the square support column (3) in a rectangular array shape, and two discs (12) are fixedly connected to the upper end face of the square support column (3) in a bilateral symmetry shape; a half annular ring opening (1201) is formed in the right end face of one disc (12) on the right side; the central part of the lower end face of the supporting plate (4) is fixedly connected with a connecting block (401), and the connecting block (401) is rotatably connected between the opposite faces of the two discs (12) through a rotating shaft; the right end face of the connecting block (401) is provided with the threaded blind hole (20), and the connecting block (401) is connected with the second fastening hand wheel (14) penetrating through the half annular ring opening (1201) through the threaded blind hole (20); the rear side of the upper end face of the supporting plate (4) is fixedly connected with a rectangular block (5), and the front side of the upper end face of the supporting plate (4) is fixedly connected with a first clamping block (6); the first clamping block (6) and the rectangular block (5) are opposite to each other in a bilaterally symmetrical shape and are fixedly connected with two slide rails (8), and the peripheral surfaces of the two slide rails (8) are connected with a second clamping block (7) in a sliding manner; the outer peripheral surfaces of the two sliding rails (8) are connected with one limiting block (9) in a sliding mode, and the two limiting blocks (9) are located between the opposite surfaces of the rectangular block (5) and the second clamping block (7); the first spring (11) is mounted on the outer peripheral surface of each sliding rail (8), and the two first springs (11) are located between the opposite surfaces of the second clamping block (7) and the limiting block (9); two T-shaped sliding grooves (17) are formed in opposite surfaces of the middle parts of the first clamping block (6) and the second clamping block (7), and the first clamping block (6) and the second clamping block (7) are connected with one rectangular clamping plate (16) in a sliding mode through the T-shaped sliding grooves (17); and the upper end surfaces of the middle parts of the first clamping block (6) and the second clamping block (7) are respectively provided with a second spring (15), and the upper end of each second spring (15) is tightly attached to the lower end surfaces of the two rectangular clamping plates (16).

2. The test circuit board clamping mechanism of claim 1, wherein: the thread thickening block (201) is connected with one first fastening hand wheel (13) through a thread through hole (19), and a hemispherical fixture block is arranged at the front end of the first fastening hand wheel (13).

3. The test circuit board clamping mechanism of claim 1, wherein: when the left end face of the second fastening hand wheel (14) is tightly attached to the right end face of the connecting block (401), the connecting block (401) is in a fixed state between the opposite faces of the two discs (12).

4. The test circuit board clamping mechanism of claim 1, wherein: two equal fixedly connected with of rectangle splint (16) one side T type slider (18), and per two T type slider (18) be a set of respectively with the left side two T type spout (17) and the right side two T type spout (17) slide connection.

5. The test circuit board clamping mechanism of claim 1, wherein: the number of the second springs (15) is six, and the six second springs (15) are symmetrically distributed between the first clamping block (6) and the second clamping block (7).

6. The test circuit board clamping mechanism of claim 1, wherein: the upper end face of the limiting block (9) is provided with a threaded through hole (19), and the limiting block (9) is connected with one hand-screwed bolt (10) through the threaded through hole (19).