CN108982929B - Clamping device for testing service life of circuit board - Google Patents
Clamping device for testing service life of circuit board Download PDFInfo
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- CN108982929B CN108982929B CN201811136264.4A CN201811136264A CN108982929B CN 108982929 B CN108982929 B CN 108982929B CN 201811136264 A CN201811136264 A CN 201811136264A CN 108982929 B CN108982929 B CN 108982929B
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- circuit board
- clamping
- clamping block
- block main
- main body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a clamping device for testing the service life of a circuit board, which comprises a fixed operation board, wherein a guide rail is arranged on the fixed operation board, a concave groove is formed in the guide rail, and a first clamping block is movably arranged in the concave groove; the T-shaped connecting block is fixedly connected to the screw rod, one end, far away from the T-shaped connecting block, of the screw rod is fixedly penetrated through the center of the worm wheel, the worm wheel is movably arranged on the worm, the screw rod is movably provided with a nut seat, and the nut seat is fixedly provided with a second clamping block. The clamping device for testing the service life of the circuit board can stably clamp the circuit boards with different specifications, is wide in application range, can perform coarse adjustment and fine adjustment on the built-in first clamping block and the built-in second clamping block respectively, is high in refinement degree, and can realize lossless clamping on the circuit board with high precision.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a clamping device for testing the service life of a circuit board.
Background
The device in the circuit board is towards the direction development of size miniaturization, pin interval densification, demand and the degree of difficulty that tests the circuit board also increase day by day, the clamping device of traditional circuit board life-span test can only adapt to the circuit board of fixed size, to the specification difference, the circuit board that the shape is different lacks the universality, and simultaneously, clamping device is comparatively extensive to the fixed of circuit board, causes the damage to the circuit board easily, consequently to the higher circuit board of precision, an urgent need is a clamping device that can finely tune fixedly.
In the prior art, a circuit board test fixture with application number "201720739929.5" includes a substrate, wherein the substrate is provided with a control mechanism, a clamping mechanism and a positioning mechanism, and the positioning mechanism includes at least one positioning block arranged on the substrate; the clamping mechanism comprises slide rails symmetrically arranged on the base plate, a connecting piece arranged at the top of the slide rails in a sliding mode and a pushing plate detachably arranged on the connecting piece, the control mechanism comprises a transmission piece, a connecting rod and a handle, the transmission piece is connected to the pushing plate, the connecting rod is fixedly connected to the transmission piece, and the handle is fixedly connected to the connecting rod; the supporting seat is installed to the base plate, the connecting rod rotationally peg graft in the supporting seat, this circuit board test fixture pass through semi-automatic mode, need a small amount of manual operation can be steadily held the circuit board to reduce the centre gripping time, and avoided because of the circuit board that manual operation error leads to not fixed.
However, the method still has the obvious defects in the using process: 1. the position of a positioning block in the device is fixed, and the device can only be suitable for clamping a circuit board with fixed width, so that the application range is very limited; 2. the clamping adjustment process of the device is relatively extensive, the circuit board with high precision is easily damaged, and a device capable of performing fine adjustment operation is lacked.
Disclosure of Invention
The present invention is directed to a clamping device for testing the service life of a circuit board, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a clamping device for testing the service life of a circuit board comprises a fixed operation board, wherein a guide rail is arranged on the fixed operation board, a concave groove is formed in the guide rail, and a first clamping block is movably arranged in the concave groove;
a T-shaped connecting block is movably arranged in a groove formed in the fixed operating plate, the T-shaped connecting block is fixedly connected to a screw rod, one end, far away from the T-shaped connecting block, of the screw rod is fixedly penetrated through the center of a worm wheel, the worm wheel is movably arranged on a worm, a nut seat is movably arranged on the screw rod, and a second clamping block is fixedly arranged on the nut seat;
the second clamping block comprises a second clamping block main body, the upper inner wall of the second clamping block main body is connected with an insulating pressing plate through an extrusion spring, a bearing is arranged on the second clamping block main body, a connecting rod is arranged on the bearing, one end of the connecting rod is fixedly connected onto a push rod, the push rod is movably arranged in a sliding groove formed in the trapezoidal sliding block, the trapezoidal sliding block is connected onto the inner side wall of the second clamping block main body through the spring, the trapezoidal sliding block is movably arranged on a sliding rail, and the sliding rail is fixed onto the bottom side wall of the second clamping block main body.
Preferably, a support column is fixed at the bottom of the fixed operation plate and is fixedly arranged on the trapezoidal base.
Preferably, first grip block includes first grip block main part, set up threaded hole in the first grip block main part, threaded rod runs through in the screw hole, the fixed rotation handle that is provided with of one end of threaded rod, the threaded rod is kept away from the one end fixedly connected with of rotation handle and is gone up insulating clamp plate, be provided with compression spring on the diapire that the screw hole was kept away from to first grip block main part, last insulating clamp plate under being provided with of compression spring, the bottom of first grip block main part is fixed in on the unable adjustment base through the spliced pole.
Preferably, an insulating gasket I is arranged on the inner side wall of the first clamping block main body.
Preferably, the connecting column and the movable base are movably arranged in the concave groove, and one side of the movable base, which is far away from the connecting column, is provided with an anti-slip rubber layer.
Preferably, one end of the worm is fixedly provided with a fine adjustment handle.
Preferably, the inner wall of the bottom end of the second clamping block main body is provided with a second insulating gasket.
Compared with the prior art, the invention has the beneficial effects that:
1. the clamping device can adapt to circuit boards of different specifications, the distance between the first clamping blocks and the positions of the first clamping blocks and the second clamping blocks can be flexibly adjusted according to needs, and the universality is high;
2. the device is provided with two clamping devices, the first clamping block can clamp circuit boards with different widths for coarse adjustment, the second clamping block can stably clamp circuit boards with different lengths for fine adjustment, the circuit boards with high precision can not be damaged, and lossless clamping can be realized;
3. the upper insulating pressing plate, the lower insulating pressing plate, the first insulating gasket, the second insulating pressing plate and the second insulating gasket in the device are all of insulating structures, so that the phenomenon of electric leakage of a circuit board during testing can be effectively avoided, and the use safety of the clamping device is improved.
The clamping device for testing the service life of the circuit board can stably clamp the circuit boards with different specifications, is wide in application range, can perform coarse adjustment and fine adjustment on the built-in first clamping block and the built-in second clamping block respectively, is high in refinement degree, and can realize lossless clamping on the circuit board with high precision.
Drawings
FIG. 1 is a front sectional view of the overall structure of the present invention;
FIG. 2 is a top view of the stationary operating plate of the present invention;
FIG. 3 is a first clamping block diagram according to the present invention;
FIG. 4 is a view showing a connection structure of a guide rail and a first clamping block according to the present invention;
FIG. 5 is a second clamping block pattern of the present invention;
fig. 6 is a left side view of the worm wheel and worm of the present invention.
In the figure: the device comprises a fixed operation plate 1, a supporting column 2, a trapezoidal base 3, a guide rail 4, a concave groove 5, a first clamping block main body 6, a threaded hole 7, a threaded rod 8, a rotating handle 9, an upper insulating pressing plate 10, a compression spring 11, a lower insulating pressing plate 12, a first insulating gasket 13, a connecting column 14, a movable base 15, a non-slip rubber layer 16, a T-shaped connecting block 17, a lead screw 18, a worm wheel 19, a worm 20, a fine adjustment handle 21, a nut seat 22, a second clamping block main body 23, an extrusion spring 24, an insulating pressing plate 25, a bearing 26, a connecting rod 27, a push rod 28, a trapezoidal sliding block 29, a sliding groove 30, a spring 31, a sliding rail 32 and an insulating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
the utility model provides a clamping device of circuit board life-span test, includes fixed operation panel 1, is provided with guided way 4 on the fixed operation panel 1, has seted up concave groove 5 in the guided way 4, and 5 activities in the concave groove are provided with first grip block.
The T-shaped connecting block 17 is movably arranged in a groove formed in the fixed operating plate 1, the T-shaped connecting block 17 can rotate in the groove and cannot be separated from the groove, the T-shaped connecting block 17 is fixedly connected to the screw rod 18, one end, far away from the T-shaped connecting block 17, of the screw rod 18 is fixedly penetrated through the center of the worm wheel 19, the worm wheel 19 is movably arranged on the worm 20, a nut seat 22 is movably arranged on the screw rod 18, a second clamping block is fixedly arranged on the nut seat 22, when the worm 20 rotates, the worm wheel 19 and the screw rod 18, fixedly penetrated through the center of the worm wheel 19, can be driven to rotate together, and therefore the nut seat 22 on the screw rod 18 can move on the screw rod 18 and drive the second clamping.
The second clamping block comprises a second clamping block main body 23, the upper inner wall of the second clamping block main body 23 is connected with an insulating pressing plate 25 through an extrusion spring 24, a bearing 26 is arranged on the second clamping block main body 23, a connecting rod 27 is arranged on the bearing 26, the connecting rod 27 can rotate around the bearing 26, one end of the connecting rod 27 is fixedly connected onto a push rod 28, the push rod 28 is movably arranged in a sliding groove 30 formed in a trapezoidal sliding block 29, the push rod 28 can move in the sliding groove 30 and cannot be separated from the sliding groove 30, the trapezoidal sliding block 29 is connected onto the inner side wall of the second clamping block main body 23 through a spring 31, the trapezoidal sliding block 29 is movably arranged on a sliding rail 32, the trapezoidal sliding block 29 can move on the sliding rail 32 and cannot be separated from the sliding rail 32, and the sliding rail 32 is fixed onto the side wall.
Preferably, the bottom of the fixed operation panel 1 is fixed with a support column 2, the support column 2 is fixedly arranged on a trapezoidal base 3, and the trapezoidal base 3 mainly plays a role in supporting and stabilizing the whole device.
Preferably, the first clamping block comprises a first clamping block main body 6, a threaded hole 7 is formed in the first clamping block main body 6, a threaded rod 8 penetrates through the threaded hole 7, a rotating handle 9 is fixedly arranged at one end of the threaded rod 8, the threaded rod 8 is driven by the rotating handle 9 to rotate in the threaded hole 7, an upper insulating pressing plate 10 is fixedly connected to one end, far away from the rotating handle 9, of the threaded rod 8, a compression spring 11 is arranged on the bottom wall, far away from the threaded hole 7, of the first clamping block main body 6, a lower insulating pressing plate 12 is arranged on the compression spring 11, and the bottom of the first clamping block main body 6 is fixed on a movable base 15 through a connecting column 14.
Preferably, the first insulating gasket 13 is arranged on the inner side wall of the first clamping block body 6, and the arrangement of the first insulating gasket 13 avoids the phenomenon of electric leakage of the circuit board during testing, so that the use safety of fixed clamping is improved.
Preferably, the connecting column 14 and the movable base 15 are movably arranged in the concave groove 5, the connecting column 14 and the movable base 15 can rotate in the concave groove 5 and cannot be separated from the concave groove 5, the side, far away from the connecting column 14, of the movable base 15 is provided with the anti-slip rubber layer 16, the anti-slip rubber layer 16 can increase friction force, and the stability of position keeping of the first clamping block is ensured.
Preferably, a fine adjustment handle 21 is fixedly disposed at one end of the worm 20, and the fine adjustment handle 21 can be rotated to rotate the worm 20.
Preferably, the second insulating gasket 33 is arranged on the inner wall of the bottom end of the second clamping block main body 23, and the arrangement of the second insulating gasket 33 avoids the phenomenon of electric leakage of the circuit board during testing, so that the use safety of fixed clamping is improved.
The working principle is as follows: firstly according to the width of the circuit board of the life test that will carry out, adjust the position of first grip block on guided way 4, then place the one end of circuit board between last insulating clamp plate 10 and lower insulating clamp plate 12 in first grip block main part 6, according to the rotatory handle 9 that rotates of circuit board thickness, the handle 9 that rotates can drive threaded rod 8 and rotate in screw hole 7, thereby carry out the fine setting to the height of last insulating clamp plate 10, lower insulating clamp plate 12 can upwards support the circuit board under compression spring 11 impetus, compression spring 11 has also played certain cushioning effect at this moment, make last insulating clamp plate 10 and lower insulating clamp plate 12 can be accurate the centre gripping circuit board and can not excessively extrude and cause the damage to the circuit board.
After one end of the circuit board is clamped, the clamping of the other end of the circuit board is finely adjusted, specifically, the fine adjustment handle 21 is rotated, the fine adjustment handle 21 drives the worm 20 to rotate, so that the worm wheel 19 on the worm 20 and the lead screw 18 fixedly penetrating through the center of the worm wheel 19 rotate together, the nut seat 22 on the lead screw 18 moves on the lead screw 18 and drives the second clamping block main body 23 to move along with the lead screw, the clamping distance is finely adjusted, when the other end of the circuit board is gradually inserted into the clamping groove of the second clamping block main body 23 and gradually pushes the trapezoidal sliding block 29 to move on the sliding rail 32, the spring 31 is squeezed, the push rod 28 gradually slides upwards in the sliding groove 30 on the trapezoidal sliding block 29, one end of the connecting rod 27 is pushed to rise, the other end of the connecting rod 27 moves downwards around the bearing 26, the insulating pressing plate 25 is pushed to move downwards to clamp the other end of the circuit board, and the, when the insulating pressing plate 25 is gradually clamped downward, it can be regarded that the other end of the circuit board is just clamped at a proper position.
An upper insulating pressing plate 10, a lower insulating pressing plate 12, a first insulating gasket 13, an insulating pressing plate 25 and a second insulating gasket 33 in the device are all of insulating structures, so that the phenomenon of electric leakage of a circuit board during testing is mainly avoided, and the use safety of the clamping device is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a clamping device of circuit board life-span test, includes fixed operation board (1), its characterized in that: a guide rail (4) is arranged on the fixed operation plate (1), a concave groove (5) is formed in the guide rail (4), and a first clamping block is movably arranged in the concave groove (5);
a T-shaped connecting block (17) is movably arranged in a groove formed in the fixed operating plate (1), the T-shaped connecting block (17) is fixedly connected to a screw rod (18), one end, far away from the T-shaped connecting block (17), of the screw rod (18) is fixedly penetrated through the center of a worm wheel (19), the worm wheel (19) is movably arranged on a worm (20), a nut seat (22) is movably arranged on the screw rod (18), and a second clamping block is fixedly arranged on the nut seat (22);
the second clamping block comprises a second clamping block main body (23), the upper inner wall of the second clamping block main body (23) is connected with an insulating pressing plate (25) through an extrusion spring (24), a bearing (26) is arranged on the second clamping block main body (23), a connecting rod (27) is arranged on the bearing (26), one end of the connecting rod (27) is fixedly connected onto a push rod (28), the push rod (28) is movably arranged in a sliding groove (30) formed in a trapezoidal sliding block (29), the trapezoidal sliding block (29) is connected onto the inner side wall of the second clamping block main body (23) through a spring (31), the trapezoidal sliding block (29) is movably arranged on a sliding rail (32), and the sliding rail (32) is fixed onto the bottom side wall of the second clamping block main body (23).
2. The clamping device for the life test of the circuit board as claimed in claim 1, wherein: the bottom of the fixed operation board (1) is fixed with a support column (2), and the support column (2) is fixedly arranged on the trapezoidal base (3).
3. The clamping device for the life test of the circuit board as claimed in claim 1, wherein: first grip block includes first grip block main part (6), set up threaded hole (7) on first grip block main part (6), run through threaded rod (8) in threaded hole (7), the fixed rotation handle (9) that is provided with of one end of threaded rod (8), threaded rod (8) are kept away from the one end fixedly connected with who rotates handle (9) and are gone up insulating clamp plate (10), be provided with compression spring (11) on the diapire that threaded hole (7) were kept away from in first grip block main part (6), be provided with down insulating clamp plate (12) on compression spring (11), the bottom of first grip block main part (6) is fixed in on movable base (15) through spliced pole (14).
4. The clamping device for the life test of the circuit board as claimed in claim 3, wherein: and a first insulating gasket (13) is arranged on the inner side wall of the first clamping block main body (6).
5. The clamping device for the life test of the circuit board as claimed in claim 3, wherein: the connecting column (14) and the movable base (15) are movably arranged in the concave groove (5), and one side, far away from the connecting column (14), of the movable base (15) is provided with an anti-slip rubber layer (16).
6. The clamping device for the life test of the circuit board as claimed in claim 1, wherein: one end of the worm (20) is fixedly provided with a fine adjustment handle (21).
7. The clamping device for the life test of the circuit board as claimed in claim 1, wherein: and a second insulating gasket (33) is arranged on the inner wall of the bottom end of the second clamping block main body (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136264.4A CN108982929B (en) | 2018-09-28 | 2018-09-28 | Clamping device for testing service life of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136264.4A CN108982929B (en) | 2018-09-28 | 2018-09-28 | Clamping device for testing service life of circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108982929A CN108982929A (en) | 2018-12-11 |
| CN108982929B true CN108982929B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811136264.4A Active CN108982929B (en) | 2018-09-28 | 2018-09-28 | Clamping device for testing service life of circuit board |
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| US9620885B2 (en) * | 2012-09-24 | 2017-04-11 | Westek Electronics, Inc. | Insulated test clip cover assembly |
| CN202903828U (en) * | 2012-10-25 | 2013-04-24 | 深圳市德瑞欧科技有限公司 | Fine-tunable PCB testing clamp |
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| Publication number | Publication date |
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| CN108982929A (en) | 2018-12-11 |
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