CN213181208U - PCB bonding strength detection device - Google Patents

Abstract

The utility model relates to a PCB board bonding strength detection device, the on-line screen storage device comprises a base, be located the anchor clamps of base upper end, be fixed in the elevating system of base and connect in elevating system's tensiometer, wherein anchor clamps include quick chuck, the bottom plate, be fixed in the fixed clamp splice of bottom plate up end and slide in the activity clamp splice of bottom plate up end, wherein quick chuck includes the chuck base, rotate the activity handle of connecting in the chuck base, rotate the piece and articulate in the connecting rod that rotates, the connecting rod is fixed in the activity clamp splice, rotate movable handle towards fixed clamp splice direction, the connecting rod orders about movable clamp splice to slide to fixed clamp splice under the drive of activity handle, fixed clamp splice presss from both sides tight PCB board with the activity clamp splice, the tensiometer detects the bonding strength of PCB board and plastic part or metalwork under elevating system's drive. This application has and detects simple and convenient and accurate effect has to PCB board and plastic part or metalwork adhesive bonding strength.

Description

PCB bonding strength detection device

Technical Field

The application relates to the field of detection technology, in particular to PCB bonding strength detection.

Background

The PCB board usually needs to pass through the glue bonding with plastic part or metalwork when using, need carry out the bonding strength detection to PCB board and plastic part or metalwork after the bonding, and current detection mode is artifical usually through applying the power of keeping away from each other to PCB board and plastic part or metalwork to utilize the tensiometer to read the numerical value of applying the power, thereby judge whether up to standard PCB board and plastic part or metalwork bonding strength.

In view of the above-mentioned related art, the inventor considers that the process of applying the pulling forces in two different directions simultaneously is tedious, and needs an apparatus for detecting the bonding strength between the PCB and the plastic or metal member.

SUMMERY OF THE UTILITY MODEL

In order to detect the bonding strength to PCB board and plastic part or metalwork, this application provides a PCB board bonding strength detection device.

The application provides a PCB board bonding strength detection device adopts following technical scheme:

the utility model provides a PCB board bonding strength detection device which characterized in that: the device comprises a base, a clamp for positioning and clamping and a tension meter for detecting the bonding strength, wherein the clamp is connected with a bonding piece positioned below, and the tension meter is connected with a PCB (printed circuit board) to be detected positioned above.

Through adopting above-mentioned technical scheme, the lateral wall that is located the PCB board of top has bored a through-hole, and a rope passes the through-hole and is connected in the tensiometer, and after the tight PCB board of anchor clamps location clamp, the tensiometer upwards draws the rope that passes the PCB board that is located the top, detects the bonding strength of PCB board and plastic part or metalwork.

Optionally, a lifting mechanism is arranged on the upper end surface of the base, and the lifting mechanism comprises a rack fixed on the upper end surface of the base, a lead screw rotationally connected with the rack, and a slider slidably connected to the rack; the tension meter is connected to the sliding block, and the sliding block is in threaded connection with the lead screw.

Through adopting above-mentioned technical scheme, the slider slides in the frame, and under the drive of lead screw, threaded connection goes up and down along with the lead screw rotation in the slider of lead screw, connects in the tensiometer of slider and detects PCB board and plastic part or the bonding strength of metalwork under elevating system's drive.

Optionally, the lower end of the lead screw is fixedly connected with a worm wheel, the rack is rotatably connected with a worm, the worm wheel is meshed with the worm, and a rotating wheel is coaxially fixed at one end, far away from the rack, of the worm.

Through adopting above-mentioned technical scheme, when rotating the runner, the runner drives the worm and rotates, and worm wheel cooperation transmission drive lead screw is rotary motion in vertical direction, and the slider goes up and down under the drive of lead screw, connects in the tensiometer of slider and goes up and down along with the lift of slider, is located the tensiometer lower extreme and is equipped with the couple, and the couple catches on the rope that passes the PCB board that is located the top, and the tensiometer detects PCB board and plastic part or the bonding strength of metalwork under elevating system's drive.

Optionally, the fixture includes a bottom plate, a fixed clamping block, a movable clamping block, and a fast chuck fixed at one end of the movable clamping block away from the fixed clamping block, the fixed clamping block is fixed at the upper end surface of the bottom plate, a clamping groove is formed on a side wall of the fixed clamping block close to the movable clamping block, the movable clamping block slides on the upper end surface of the bottom plate, and a lower groove is formed on a side wall of the movable clamping block close to the fixed clamping block.

Through adopting above-mentioned technical scheme, under the drive of quick chuck, the activity clamp splice slides and is close to fixed slider on the bottom plate up end, and the centre gripping recess presss from both sides tight PCB board with the lower groove centre gripping, and after anchor clamps pressed from both sides tight PCB board, the couple that is located the tensiometer lower extreme caught on the rope that passes the PCB board that is located the top, and the tensiometer detects PCB board and plastic part or the bonding strength of metalwork under elevating system's drive.

Optionally, the quick chuck comprises a chuck base, a movable handle, a rotating piece and a connecting rod connected to one end of the movable clamping block, which is far away from the fixed clamping block; the chuck base is fixed on the upper end face of the bottom plate, one end of the movable handle is rotatably connected to the chuck base, the movable handle is hinged to the rotating piece, the connecting rod is connected to the other end of the rotating piece, and the other end of the connecting rod is fixed on the movable clamping block.

By adopting the technical scheme, when the movable handle is rotated towards the direction of the fixed clamping block, the rotating part is driven by the movable handle to press downwards towards the direction of the bottom plate, the connecting rod enables the movable clamping block to slide towards the direction of the fixed clamping block at the upper end surface of the bottom plate under the driving of the rotating part and to be close to the fixed clamping block, and the fixed clamping block and the movable clamping block clamp the PCB.

Optionally, a sliding plate is arranged on the upper end face of the base, a moving groove parallel to the sliding direction of the movable clamping block is formed in the upper end of the sliding plate, inner hexagonal bolts penetrate through the moving groove and are in threaded connection with the base, and the clamp is connected to the sliding plate. The upper end face of the sliding plate is integrally formed with a boss, the upper end face of the boss is provided with a sliding groove, a positioning block is connected in the sliding groove in a sliding mode, a round-head bolt penetrates through the bottom plate and is in threaded connection with the positioning block, and the sliding direction of the bottom plate is perpendicular to the moving direction of the sliding plate.

Through adopting above-mentioned technical scheme, remove the sliding plate and fix a position at the base up end, the location back that removes the sliding plate, screw up hexagon socket head cap screw and make the sliding plate fastening at the base up end, the bottom plate slides along the spout and fixes a position in boss up end, slide the bottom plate to accurate position back, screw up the button head bolt and make the bottom plate fastening at the boss up end, sliding plate and bottom plate location accurate back, when rotating movable handle towards fixed clamp splice direction, the piece down presses towards the bottom plate direction under the drive of movable handle, the connecting rod makes movable clamp splice slide and be close to fixed clamp splice towards fixed clamp splice direction at the bottom plate up end under rotating the piece drive, fixed clamp splice and movable clamp splice centre gripping PCB board. After the PCB is clamped by the clamp, the hook at the lower end of the tension meter hooks the rope which penetrates through the PCB above, and the tension meter detects the bonding strength of the PCB and the plastic part or the metal part under the driving of the lifting mechanism.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the clamp clamps the PCB adhered to the plastic part or the metal part, the tension meter pulls the rope penetrating through the PCB above, the tension meter is driven by the lifting mechanism to detect the bonding strength of the PCB and the plastic part or the metal part, and the detection process is simple and convenient and is accurate;

2. the lower groove and the clamping groove clamp the bonding part positioned below, a gap is reserved between the upper groove positioned at the upper end of the lower groove and the PCB, the upper groove is prevented from contacting the PCB positioned above, and the accuracy of detecting the bonding strength between the PCB and the plastic part or the metal part is further ensured;

3. the quick chuck positioned at the upper end of the bottom plate can quickly, simply and conveniently enable the clamp to clamp the PCB;

4. the bottom plate slides along the sliding groove, so that the PCB can be accurately positioned conveniently;

5. the sliding plate slides on the upper end face of the base, so that the PCB can be accurately positioned.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural diagram of a PCB bonding strength detection device;

fig. 4 is an enlarged view at B in fig. 3.

Description of reference numerals: 1. a base; 11. a hexagon socket head cap screw; 2. a clamp; 21. a base plate; 211. a round head bolt; 22. fixing the clamping block; 221. a clamping groove; 23. a movable clamping block; 231. a lower groove; 232. an upper groove; 24. a quick chuck; 241. a chuck base; 242. a movable handle; 2421. a first hinge point; 243. a rotating member; 2431. a second hinge point; 244. a connecting rod; 2441. a third hinge point; 245. a sheath; 3. a sliding plate; 31. a boss; 32. a chute; 321. positioning blocks; 33. a groove; 4. a tension meter; 5. a lifting mechanism; 51. a frame; 52. a lead screw; 53. a slider; 6. connecting blocks; 7. a worm; 8. a worm gear; 9. a rotating wheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses PCB board bonding strength detection device for bonding strength to PCB board and plastic part or metalwork detects, and it has the simple facility of detection, detects accurate function.

Referring to fig. 1, a PCB board bonding strength detection device includes base 1, be used for the tight anchor clamps 2 of location clamp, detect adhesion strength's tensiometer 4 and be used for driving the elevating system 5 of the vertical lift of tensiometer 4, and elevating system 5 is fixed in base 1, and tensiometer 4 is connected in elevating system 5, and the PCB board side that is located the top is bored there is a through-hole, and the rope passes the through-hole and is connected with the couple that is located the 4 lower extremes of tensiometer. After the PCB is clamped by the clamp 2, the force meter 4 is driven by the lifting mechanism 5 to pull upwards along with the lifting of the lifting mechanism 5 to pass through the rope of the PCB above the PCB, and then the bonding strength between the PCB and the plastic part or the metal part is detected.

Referring to fig. 1 and 2, the clamp 2 includes a base plate 21, a fixed block 22 fixed to the base plate 21 by bolts, a movable block 23 slidably coupled to an upper end surface of the base plate 21, and a quick chuck 24 for pushing the movable block 23. The thickness of activity clamp splice 23 is big than fixed clamp splice 22 thickness, and activity clamp splice 23 is more stable and prevent to warp at centre gripping PCB board in-process, and activity clamp splice 23 slides and is close to fixed clamp splice 22 at bottom plate 21 up end under the drive of quick chuck 24, and then makes fixed clamp splice 22 and the common centre gripping of activity clamp splice 23 press from both sides tight PCB board and plastic part or metalwork, prevents that PCB board and bonding piece from appearing sliding. The side wall of the fixed clamping block 22 close to the movable clamping block 23 is provided with a clamping groove 221, the upper projection view of the clamping groove 221 is semicircular and penetrates through the upper end face and the lower end face of the fixed clamping block 22, the side wall of the movable clamping block 23 close to the fixed clamping block 22 is provided with a lower groove 231 and an upper groove 232, the upper projection view of the lower groove 231 and the upper groove 232 is semicircular, the upper groove 232 is positioned above the lower groove 231, the upper groove 232 penetrates through the upper end face of the movable clamping block 23, the lower groove 231 penetrates through the lower end face of the movable clamping block 23, the upper groove 232 is communicated with the lower groove 231, the radius of the upper groove 232 is larger than that of the lower groove 231, the upper groove 232 not only can reduce the thickness of the clamping part of the movable clamping block 23, but also can reduce the contact with a PCB positioned above, thereby ensuring the accuracy in the detection of the bonding strength of the PCB and a plastic part or a metal part, the radius, the clamping groove 221 and the lower groove 231 can more stably clamp the circular PCB. When rotating quick chuck 24 towards the direction of fixed clamp splice 22, lower recess 231 is close to centre gripping recess 221 under quick chuck 24's drive, and then fixes a position tight PCB board and bonding piece jointly, avoids PCB board and bonding piece to appear sliding, and after the tight PCB board is fixed a position tightly, the drive of elevating system 5 is pulled up by dynamometer 4 and is passed the rope that is located the PCB board of top, and then detects the bonding strength of PCB board and plastic part or metalwork.

Referring to fig. 2 and 4, the quick chuck 24 includes a chuck base 241 fixed on the upper end surface of the bottom plate 21, a movable handle 242 rotatably connected to the chuck base 241, a rotating member 243 and a connecting rod 244 hinged to the rotating member 243, the movable handle 242 is rotatably connected to the chuck base 241 and forms a first hinge point 2421, the movable handle 242 is hinged to the rotating member 243 and forms a second hinge point 2431, one end of the connecting rod 244 is hinged to the rotating member 243 and forms a third hinge point 2441, the other end of the connecting rod 244 is fixed to the movable clamping block 23, the first hinge point 2421 and the third hinge point 2441 are located on the same plane horizontal line, a protective sleeve 245 is disposed on the movable handle 242, and the protective sleeve 245 is used for preventing the movable handle from being scratched when the movable handle. When the movable handle 242 is rotated towards the fixed clamp 22, the rotating member 243 is driven by the movable handle 242 to press downwards towards the bottom plate 21, the transmission angle is smaller as the rotating member 243 presses downwards, the second hinge point 2431 is lower than the first hinge point 2421 and the third hinge point 2441 which are located on the same horizontal plane horizontal straight line, and the rotating member 243 is further in a self-locking state, so that the quick chuck 24 is in a locking state.

Referring to fig. 3, the lifting mechanism 5 includes a frame 51 fixed to the base 1, a lead screw 52 rotatably connected to the frame 51, and a slider 53 slidably connected to the frame 51, wherein a worm wheel 8 is coaxially and fixedly connected to one end of the lead screw 52 close to the base 1, a worm 7 is rotatably connected to the frame 51, the worm 7 is engaged with the worm wheel 8, and a rotating wheel 9 is coaxially fixed to one end of the worm 7 away from the frame 51. The lead screw 52 is vertical setting and passes slider 53 and with slider 53 threaded connection, and slider 53 uses bolted connection to have connecting block 6 near the terminal surface of tensiometer 4, and connecting block 6 one end is connected in slider 53, and the other end that slider 53 was kept away from to the connecting block 6 is fixed in to the use bolt of tensiometer 4. When the rotating wheel 9 is rotated, the rotating wheel 9 drives the worm 7 to rotate, the worm 7 and the worm wheel 8 are matched to drive the lead screw 52 to do lifting motion in the vertical direction, the sliding block 53 is driven by the lead screw 52 to lift along with the lifting of the lead screw 52, and the tension meter 4 connected to the sliding block 53 lifts along with the lifting of the sliding block 53. Be located the tensiometer 4 lower extreme and be equipped with the couple, the couple catches on the rope that passes the PCB board that is located the top, connects in the tensiometer 4 of slider 53 and detects the bonding strength of PCB board and plastic part or metalwork under the drive of lead screw 52.

Referring to fig. 3 and 4, the upper end surface of the base 1 is connected with the sliding plate 3, the upper end of the sliding plate 3 is provided with a moving groove 33 parallel to the sliding direction of the movable clamping block 23, the moving groove 33 is internally provided with the hexagon socket head cap screw 11, the hexagon socket head cap screw 11 passes through the moving groove 33 and is in threaded connection with the base 1, the upper end surface of the sliding plate 3 is integrally formed with a boss 31, the upper end surface of the boss 31 is provided with a sliding groove 32 perpendicular to the moving direction of the movable clamping block 23, the sliding groove 32 is in an inverted T shape and penetrates through the upper end surface of the boss 31, the bottom plate 21 slides on the upper end surface of the boss 31 along the sliding groove 32, the bottom plate 21 is provided with a round-head bolt 211, the sliding groove 32 is connected with the positioning block 321. Remove the sliding plate 3 and fix a position at base 1 up end, remove the sliding plate 3 suitable location back, screw up hexagon socket head cap screw 11 and make the fastening of sliding plate 3 at base 1 up end, bottom plate 21 slides along spout 32 and fixes a position in boss 31 up end, slide bottom plate 21 to accurate locating position after, screw up button head bolt 211 and make bottom plate 21 fasten at boss 31 up end, towards fixed clamp splice 22 direction rotation activity handle 242, will place the PCB board clamp of bottom plate 21 up end and press from both sides tightly.

The implementation principle of the PCB bonding strength detection device in the embodiment of the application is as follows: moving the sliding plate 3 to position on the upper end surface of the base 1, moving the sliding plate 3 to a precise position, screwing the hexagon socket head cap screw 11 to fasten the sliding plate 3 on the upper end surface of the base 1, sliding the bottom plate 21 on the upper end surface of the boss 31 along the sliding groove 32 to position, sliding the bottom plate 21 to the precise position, screwing the round head screw 211 to fasten the bottom plate 21 on the upper end surface of the boss 31, placing the PCB in the clamping groove 221 on the upper end surface of the bottom plate 21, rotating the movable handle 242 towards the direction of the fixed clamping block 22, under the driving of the movable handle 242, the connecting rod 244 drives the movable clamping block 23 to slide on the upper end surface of the bottom plate 21 and close to the fixed clamping block 22, the movable clamping block 23 and the fixed clamping block 22 clamp the PCB together, the hook on the lower end of the tension meter 4 hooks the rope passing through the PCB above, when rotating the rotating wheel 9, driving the worm 7 coaxial with the rotating wheel 9 to rotate, the worm wheel 8 meshed with the worm 7 rotates along with the transmission of the worm 7, the lead screw 52 is driven to rotate under the matching transmission of the worm wheel 8 and the worm 7, the sliding block 53 in threaded connection with the lead screw 52 slides in the vertical direction of the rack 51, the tension meter 4 connected to the sliding block 53 ascends and descends along with the sliding block 53 in the vertical direction, at the moment, the tension meter 4 ascends to pull a rope, and therefore the bonding strength of the PCB and a plastic part or a metal part is detected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a PCB board bonding strength detection device which characterized in that: comprises a base (1), a clamp (2) for positioning and clamping and a tension meter (4) for detecting the bonding strength; the clamp (2) is connected with the bonding piece positioned below, and the tension meter (4) is connected with the PCB to be detected positioned above.

2. The PCB bonding strength detection device of claim 1, wherein: the lifting mechanism (5) is arranged on the upper end face of the base (1), and the lifting mechanism (5) comprises a rack (51) fixed on the upper end face of the base (1), a lead screw (52) rotatably connected with the rack (51) and a sliding block (53) slidably connected with the rack (51); the tension meter (4) is connected to the sliding block (53), and the sliding block (53) is in threaded connection with the lead screw (52).

3. The PCB bonding strength detection device of claim 2, wherein: the worm screw is characterized in that a worm wheel (8) is fixedly connected to the lower end of the lead screw (52), the rack (51) is rotatably connected with a worm (7), and the worm wheel (8) is meshed with the worm (7).

4. The PCB bonding strength detection device of claim 3, wherein: and a rotating wheel (9) is coaxially fixed at one end of the worm (7) far away from the rack (51).

5. The PCB bonding strength detection device of claim 1, wherein: the clamp (2) comprises a bottom plate (21), a fixed clamping block (22), a movable clamping block (23) and a quick chuck (24) fixed at one end, far away from the fixed clamping block (22), of the movable clamping block (23); the fixed clamping block (22) is fixed on the upper end face of the bottom plate (21), and a clamping groove (221) is formed in one side wall, close to the movable clamping block (23), of the fixed clamping block (22); the movable clamping block (23) slides on the upper end face of the bottom plate (21), and a lower groove (231) is formed in one side wall, close to the fixed clamping block (22), of the movable clamping block (23).

6. The PCB bonding strength detection device of claim 5, wherein: the quick chuck (24) comprises a chuck base (241), a movable handle (242), a rotating piece (243) and a connecting rod (244) connected to one end of the movable clamping block (23) far away from the fixed clamping block (22); the chuck base (241) is fixed on the upper end surface of the bottom plate (21), one end of the movable handle (242) is rotatably connected to the chuck base (241), the movable handle (242) is hinged to the rotating part (243), the connecting rod (244) is connected to the other end of the rotating part (243), and the other end of the connecting rod (244) is fixed on the movable clamping block (23).

7. The PCB bonding strength detection device of claim 6, wherein: the clamping device is characterized in that a sliding plate (3) is arranged on the upper end face of the base (1), a moving groove (33) parallel to the sliding direction of the movable clamping block (23) is formed in the upper end of the sliding plate (3), inner hexagonal bolts (11) penetrate through the moving groove (33), the inner hexagonal bolts (11) penetrate through the base (1) and are in threaded connection with the base, and the clamp (2) is connected to the sliding plate (3).

8. The PCB bonding strength detection device of claim 7, wherein: the upper end face of the sliding plate (3) is integrally formed with a boss (31), the upper end face of the boss (31) is provided with a sliding groove (32), the sliding groove (32) is connected with a positioning block (321) in a sliding mode, the bottom plate (21) is provided with a round-head bolt (211) in a penetrating mode, the round-head bolt (211) penetrates through the bottom plate (21) and is in threaded connection with the positioning block (321), and the sliding direction of the bottom plate (21) is perpendicular to the moving direction of the sliding plate (3).

Images