CN103675642A - Clamping positioning device and clamping positioning method of PCB (Printed Circuit Board) to be tested - Google Patents
Clamping positioning device and clamping positioning method of PCB (Printed Circuit Board) to be tested Download PDFInfo
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- CN103675642A CN103675642A CN201210339863.2A CN201210339863A CN103675642A CN 103675642 A CN103675642 A CN 103675642A CN 201210339863 A CN201210339863 A CN 201210339863A CN 103675642 A CN103675642 A CN 103675642A
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Abstract
The invention discloses a clamping positioning device and a clamping positioning method of a PCB (Printed Circuit Board) to be tested, and relates to the technical field of PCB testing. The clamping positioning device of the PCB comprises a working table, wherein a to-be-tested position of the PCB is arranged on the working table; at least one pair of plate clamping mechanisms is arranged on two sides of the to-be-tested position of the PCB; one of the plate clamping mechanism is arranged on a plate clamping mechanism fixing base; a push plate mechanism is further arranged on the working table; the push plate mechanism comprises a push plate cylinder and a movable U-shaped arm fixed on a cylinder rod of the push plate cylinder; a plate clamping mechanism fixing base is connected with the movable U-shaped arm; the plate clamping mechanism comprises a locking cylinder, a clamping piece, a clamping piece fixing base and a hinge; the clamping piece is rotationally connected with the clamping piece fixing base; the clamping piece fixing base is connected with the cylinder rod of the locking cylinder. The clamping positioning device has the beneficial effects that the testing precision is improved as the PCB is fixed by the plate clamping mechanism, and the PCB scrap caused by the situation that the PCB is repeatedly pressed and tested due to measurement errors is reduced.
Description
[technical field]
The present invention relates to PCB technical field of measurement and test, relate in particular to a kind of PCB clamping and positioning device to be measured and be applied in this device clamping positioning method above.
[background technology]
Printed circuit board (PCB) (pcb board) is the basic device of electronic product, and its major function is carrying electronic devices and components, transmission power supply and signal, insulation and heat radiation etc.Pcb board has been widely used in the various fields such as electronics, information, communication, medical treatment and Space Science and Technology.
Pcb board is before coming into operation, need to test it, therefore there is on the market the PCB proving installation of much developing for different types of pcb board and be applied in the method for testing on proving installation, generally before PCB tests, first need PCB to position, to reach best test effect, with reference to Fig. 1, shown in Fig. 2, PCB is before test, need to rely on the PCB location PIN2 being arranged on test fixture 1 to position, PCB location PIN2 generally depends on the lower clamp 3 of test fixture 1, to realize the location to pcb board to be measured, this locating device and method make for several points, to contact between pcb board and test fixture, easily there is flexural deformation, while testing, for the upper fixture 4 of proving installation 1 carries out pressing test with lower clamp 3, easily occur contacting after pcb board one side first contacts another side, will cause the pin of contact to print uneven, the distortion of pcb board easily causes PCB testing needle cannot accurately aim at one by one with test point, thereby it is low to cause testing yield, the shortcoming such as need to repeatedly test.
[summary of the invention]
The object of the invention is to effectively overcome the deficiency of above-mentioned technology, providing a kind of can fix the position of PCB by clamping device, make PCB surfacing, thereby effectively improve the PCB clamping and positioning device to be measured of measuring accuracy and stability, this device can reduce because of mistake to be surveyed and causes the PCB PCB that pressing test causes repeatedly to scrap, improve product test yield, greatly promote client's competitive power.
Technical scheme of the present invention is achieved in that this device comprises that a middle part is provided with the worktable of perforation, this site of perforation is PCB and treats location, its improvements are: in described PCB, treat that location both sides are provided with at least one pair of clamping plate mechanism, wherein be positioned at the clamping plate mechanism that PCB treats location one side and be located on worktable, be positioned at the clamping plate mechanism that PCB treats location opposite side and be located on a clamping plate mechanism holder; On described worktable, be also provided with a rushing board mechanism, this rushing board mechanism has a push pedal cylinder and is fixed on one on the cylinder rod of push pedal cylinder and moves U-shaped arm, and above-mentioned clamping plate mechanism holder is connected with mobile U-shaped arm; Described clamping plate mechanism comprises locking cylinder, clamp clip, clamp clip holder and hinge, described clamp clip is rotatably connected on clamp clip holder, this clamp clip holder is connected on the cylinder rod of locking cylinder, the one end that is positioned at the hinge of the clamping plate mechanism on worktable is fixed on worktable, and the other end is fixed on clamp clip; Be positioned at the one end of hinge of the clamping plate mechanism on clamping plate mechanism holder fixing with clamping plate mechanism holder on, the other end is fixed on clamp clip;
In said structure, described clamping plate mechanism also comprises back-moving spring, and one end of this back-moving spring is connected on clamping plate mechanism holder, and the other end is connected on clamp clip;
In said structure, symmetrically on described mobile U-shaped arm be fixed with two driver blades with strip through hole, mobile U-shaped arm end is provided with two parallel slide rails, this moves U-shaped arm and can on slide rail, slide, on described slide rail, be equipped with a sliding shoe, on described two driver blades, all there is one through strip through hole and sliding shoe is locked to the position adjustments knob on driver blade; Described two sliding shoes are fixedly connected with the two ends of above-mentioned clamping plate mechanism holder;
In said structure, described PCB treats that location both sides are provided with two pairs of clamping plate mechanisms;
In said structure, described in be positioned at clamping plate mechanism on worktable clamp clip below be provided with a positioning strip, described in be positioned at the clamping plate mechanism on clamping plate mechanism holder clamp clip below be also provided with a positioning strip;
In said structure, between described clamping plate mechanism holder and clamping plate mechanism on clamping plate mechanism holder, be provided with corresponding guide groove, in guide groove, be provided with orienting lug;
In said structure, between described worktable and clamping plate mechanism on worktable, be provided with corresponding guide groove, in this guide groove, be provided with orienting lug.
The present invention also provides a kind of method of testing that is applicable to above-mentioned PCB clamping and positioning device to be measured, and the method comprises the following steps:
A, PCB clamping and positioning device to be measured initialization, the cylinder rod of push pedal cylinder stretches out, by the effect of mobile U-shaped arm and driver blade, drive the motion of clamping plate mechanism holder, the cylinder rod of the locking cylinder of two clamping plate mechanisms bounces back simultaneously, drive clamp clip holder and clamp clip to return original position, clamp clip is upwards steeved by the effect of back-moving spring;
B, charging, be sent to PCB by feed arrangement by PCB to be measured and treat location;
The location of c, PCB to be measured, the cylinder rod retraction of push pedal cylinder, drive mobile U-shaped arm to retreat, mobile U-shaped arm is by the effect of driver blade, pull sliding shoe to slide backward on slide rail, thereby the clamping plate mechanism that drives clamping plate mechanism holder and be positioned on clamping plate mechanism holder moves backward, so that PCB to be measured is along the positioning strip alignment of clamp clip below; During alignment, the inductor that is positioned at positioning strip one side can be responded to the position of PCB to be measured, if locate inaccurately, stops the d of step; If accurate positioning, continues steps d.
The clamping of d, PCB to be measured, after PCB to be measured has located, the cylinder rod of the locking cylinder of clamping plate mechanism stretches out, drive clamp clip holder and clamp clip together to move, clamp clip is under the pulling of hinge, rotatable connecting portion around clamp clip and clamp clip holder rotates, and makes the outer of clamp clip be pressed in PCB to be measured above, completes the clamping of PCB to be measured;
E, test, PCB clamping and positioning device to be measured to PCB take pictures station and PCB test station, completes the test process of taking pictures with PCB of PCB together with PCB integrated moving to be measured;
F, tested after, the cylinder rod of locking cylinder is retracted, and drives clamp clip holder and clamp clip together to move, and clamp clip is under the effect of back-moving spring, rotatable connecting portion around clamp clip and clamp clip holder upwards rotates, and the clamp clip of clamping plate mechanism unclamps the clamping to pcb board;
The reset of g, PCB clamping and positioning device to be measured, after clamp clip resets, the cylinder rod of push pedal cylinder is released, by the effect of mobile U-shaped arm and driver blade, the clamping plate mechanism that makes clamping plate mechanism holder and be located thereon travels forward, to cancel the location to PCB, after this can take the PCB having tested away.
Beneficial effect of the present invention is: disclosed clamping and positioning device clamps PCB to be measured by fixation device, making it not depend on test fixture is an independently mechanism, and fixation device clamps the edge of PCB, guaranteed the formation state of PCB, this device is delivered to test zone together with PCB, and by the booster action of other stations, test fixture is adjusted respectively, thereby guaranteed corresponding one by one between test fixture and PCB, precision and the stability of test have been increased substantially, clamping action due to fixation device, make PCB clamping be shown laid flat in a plane, the mistake of having avoided PCB to be badly deformed and having caused is surveyed, thereby avoid surveying and causing the PCB PCB that pressing test causes repeatedly to scrap because of mistake, improve product test yield, improved greatly client's competitive power.
[accompanying drawing explanation]
Fig. 1, Fig. 2 are the clamping and positioning device in present technology;
Fig. 3 is a specific embodiment figure of PCB clamping and positioning device to be measured of the present invention;
Fig. 4 is the schematic perspective view of PCB clamping and positioning device specific embodiment to be measured of the present invention;
Fig. 5 is the partial enlarged drawing at A place in Fig. 4;
Fig. 6 is the process flow diagram of the present invention's PCB clamping positioning method to be measured.
[embodiment]
Below in conjunction with drawings and Examples, the invention will be further described.
Shown in Fig. 3, the present invention has disclosed a kind of PCB clamping and positioning device 10 to be measured, this PCB clamping and positioning device 10 to be measured can integrated moving between the upper fixture 20 and lower clamp 30 of test, pressing by upper fixture 20 with lower clamp 30, realization to clamping the pcb board on PCB clamping and positioning device 10 to be measured test, with reference to Fig. 4, PCB clamping and positioning device 10 to be measured comprises that a middle part is provided with the worktable 40 of perforation, site of perforation is PCB and treats location 401, PCB is shelved on PCB and treats on location 401, to be convenient to the pressing of upper fixture 20 and lower clamp 30, PCB treats that location 401 both sides are provided with at least one pair of clamping plate mechanism 50, in the present embodiment, preferred plan is for being provided with two pairs of clamping plate mechanisms 50, and be positioned at the clamping plate mechanism 50 that PCB treats the homonymy of location 401 and be located on worktable 40, the clamping plate mechanism 50 of opposite side is located on a clamping plate mechanism holder 501, on worktable 40, be also provided with a rushing board mechanism 60, this rushing board mechanism 60 has one and is fixed on the push pedal cylinder 601 on worktable 40 and is fixed on a mobile U-shaped arm 602 on the cylinder rod of push pedal cylinder 601, symmetrically on mobile U-shaped arm 602 be fixed with two driver blades 603 with strip through hole, mobile U-shaped arm 602 ends are provided with two parallel slide rails 604, mobile U-shaped arm 602 can slide on slide rail 604, on two slide rails 604, be also respectively equipped with a sliding shoe 605, above-mentioned driver blade 603 all has one through strip through hole and sliding shoe 605 is locked to the position adjustments knob 606 on driver blade 603, sliding shoe 605 is fixedly connected with the two ends of above-mentioned clamping plate mechanism holder 501, by this kind of structure, stretching of the cylinder rod of push pedal cylinder 601, just can pass through mobile U-shaped arm 602, the effect of driver blade 603 and sliding shoe 605, be converted into clamping plate mechanism holder 501 and be positioned at seesawing of clamping plate mechanism 50 on clamping plate mechanism holder 501, and the position of clamping plate mechanism holder 501 can be finely tuned by position adjustments knob 606.
Above-mentioned clamping plate mechanism 50 comprises locking cylinder 502, clamp clip 503, clamp clip holder 504 and hinge (invisible in figure), clamp clip 503 is rotatably connected on clamp clip holder 504, can rotate around clamp clip 503 and the rotatable connecting portion of clamp clip holder 504, clamp clip holder 504 is connected on the cylinder rod of locking cylinder 502, the one end that is positioned at the hinge of the clamping plate mechanism 50 on worktable 40 is fixed on worktable 40, and the other end is fixed on clamp clip 503; The one end that is positioned at the hinge of the clamping plate mechanism 50 on clamping plate mechanism holder 501 is fixed on clamping plate mechanism holder 504, and the other end is fixed on clamp clip 503; Between clamping plate mechanism holder 501 and clamping plate mechanism 50 on clamping plate mechanism holder 501, be provided with corresponding guide groove, in guide groove, be provided with orienting lug 505, corresponding, be located between clamping plate mechanism 50 on worktable 40 and worktable 40 and be also provided with corresponding guide groove, in guide groove, be also provided with orienting lug; Pass through said structure, locking cylinder 502 can drive clamp clip holder 504 and clamp clip 503 together to move, by coordinating of guide groove and orienting lug 505, make the motion of clamp clip holder 504 steady, difficult skew, clamp clip 503, by the moving to of hinge, can make clamp clip 503 rotate around clamp clip 503 and the rotatable connecting portion of clamp clip holder 504 in addition; Clamping plate mechanism 50 also comprises a back-moving spring 506, and one end of this back-moving spring 506 is connected on clamping plate mechanism holder 504, and the other end is connected on clamp clip 503.Be arranged in clamping plate mechanism 50 on worktable 40 clamp clip 503 belows be provided with a positioning strip (figure is invisible), clamp clip 503 belows that are arranged in the clamping plate mechanism 50 on clamping plate mechanism holder 504 are also provided with a positioning strip (figure is invisible).
With reference to Fig. 6, the invention also discloses a kind of clamping positioning method that is applicable to above-mentioned PCB clamping and positioning device to be measured, the method comprises the following steps:
A, PCB clamping and positioning device to be measured initialization, the cylinder rod of push pedal cylinder stretches out, by the effect of mobile U-shaped arm and driver blade, drive the motion of clamping plate mechanism holder, the cylinder rod of the locking cylinder of two clamping plate mechanisms bounces back simultaneously, drive clamp clip holder and clamp clip to return original position, clamp clip is upwards steeved by the effect of back-moving spring;
B, charging, be sent to PCB by feed arrangement by PCB to be measured and treat location;
The location of c, PCB to be measured, the cylinder rod retraction of push pedal cylinder, drive mobile U-shaped arm to retreat, mobile U-shaped arm is by the effect of driver blade, pull sliding shoe to slide backward on slide rail, thereby the clamping plate mechanism that drives clamping plate mechanism holder and be positioned on clamping plate mechanism holder moves backward, so that PCB to be measured is along the positioning strip alignment of clamp clip below; During alignment, the inductor that is positioned at positioning strip one side can be responded to the position of PCB to be measured, if locate inaccurately, stops the d of step; If accurate positioning, continues steps d.
The clamping of d, PCB to be measured, after PCB to be measured has located, the cylinder rod of the locking cylinder of clamping plate mechanism stretches out, drive clamp clip holder and clamp clip together to move, clamp clip is under the pulling of hinge, rotatable connecting portion around clamp clip and clamp clip holder rotates, and makes the outer of clamp clip be pressed in PCB to be measured above, completes the clamping of PCB to be measured;
E, test, PCB clamping and positioning device to be measured to PCB take pictures station and PCB test station, completes the test process of taking pictures with PCB of PCB together with PCB integrated moving to be measured;
F, tested after, the cylinder rod of locking cylinder is retracted, and drives clamp clip holder and clamp clip together to move, and clamp clip is under the effect of back-moving spring, rotatable connecting portion around clamp clip and clamp clip holder upwards rotates, and the clamp clip of clamping plate mechanism unclamps the clamping to pcb board;
The reset of g, PCB clamping and positioning device to be measured, after clamp clip resets, the cylinder rod of push pedal cylinder is released, by the effect of mobile U-shaped arm and driver blade, the clamping plate mechanism that makes clamping plate mechanism holder and be located thereon travels forward, to cancel the location to PCB, after this can take the PCB having tested away.
The invention discloses a kind of PCB clamping and positioning device to be measured and clamping positioning method thereof, this PCB clamping and positioning device to be measured can make PCB to be measured not depend on test fixture, PCB to be measured and clamping and positioning device are separately an independently mechanism, fixation device clamps the edge of PCB, guaranteed the formation state of PCB, this device is delivered to test zone together with PCB, and by the booster action of other stations, test fixture is adjusted respectively, thereby guaranteed corresponding one by one between test fixture and PCB, precision and the stability of test have been increased substantially, clamping action due to fixation device, make PCB clamping be shown laid flat in a plane, the mistake of having avoided PCB to be badly deformed and having caused is surveyed, thereby avoid surveying and causing the PCB PCB that pressing test causes repeatedly to scrap because of mistake, improve product test yield, improved greatly client's competitive power.
Described above is only preferred embodiment of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.In technological thought category of the present invention, can there is various distortion and modification, the retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the present invention protects.
Claims (10)
1. a PCB clamping and positioning device to be measured, it comprises that a middle part is provided with the worktable of perforation, this site of perforation is PCB and treats location, it is characterized in that: in described PCB, treat that location both sides are provided with at least one pair of clamping plate mechanism, wherein be positioned at the clamping plate mechanism that PCB treats location one side and be located on worktable, be positioned at the clamping plate mechanism that PCB treats location opposite side and be located on a clamping plate mechanism holder; On described worktable, be also provided with a rushing board mechanism, this rushing board mechanism has a push pedal cylinder and is fixed on one on the cylinder rod of push pedal cylinder and moves U-shaped arm, and above-mentioned clamping plate mechanism holder is connected with mobile U-shaped arm; Described clamping plate mechanism comprises locking cylinder, clamp clip, clamp clip holder and hinge, described clamp clip is rotatably connected on clamp clip holder, this clamp clip holder is connected on the cylinder rod of locking cylinder, the one end that is positioned at the hinge of the clamping plate mechanism on worktable is fixed on worktable, and the other end is fixed on clamp clip; Be positioned at the one end of hinge of the clamping plate mechanism on clamping plate mechanism holder fixing with clamping plate mechanism holder on, the other end is fixed on clamp clip.
2. a kind of PCB clamping and positioning device to be measured according to claim 1, is characterized in that: described clamping plate mechanism also comprises back-moving spring, and one end of this back-moving spring is connected on clamping plate mechanism holder, and the other end is connected on clamp clip.
3. a kind of PCB clamping and positioning device to be measured according to claim 1, it is characterized in that: symmetrically on described mobile U-shaped arm be fixed with two driver blades with strip through hole, mobile U-shaped arm end is provided with two parallel slide rails, this moves U-shaped arm and can on slide rail, slide, on described slide rail, be equipped with a sliding shoe, on described two driver blades, all there is one through strip through hole and sliding shoe is locked to the position adjustments knob on driver blade; Described two sliding shoes are fixedly connected with the two ends of above-mentioned clamping plate mechanism holder.
4. a kind of PCB clamping and positioning device to be measured according to claim 1, is characterized in that: described PCB treats that location both sides are provided with two pairs of clamping plate mechanisms.
5. a kind of PCB clamping and positioning device to be measured according to claim 1, it is characterized in that: described in be positioned at clamping plate mechanism on worktable clamp clip below be provided with a positioning strip, described in be positioned at the clamping plate mechanism on clamping plate mechanism holder clamp clip below be also provided with a positioning strip.
6. a kind of PCB clamping and positioning device to be measured according to claim 1, is characterized in that: between described clamping plate mechanism holder and clamping plate mechanism on clamping plate mechanism holder, be provided with corresponding guide groove, be provided with orienting lug in guide groove.
7. a kind of PCB clamping and positioning device to be measured according to claim 1, is characterized in that: between described worktable and clamping plate mechanism on worktable, be provided with corresponding guide groove, in this guide groove, be provided with orienting lug.
8. a PCB clamping positioning method to be measured that is applicable to a kind of PCB clamping and positioning device to be measured claimed in claim 1, is characterized in that: the method comprises the following steps:
A, PCB clamping and positioning device to be measured initialization, the cylinder rod of push pedal cylinder stretches out, by the effect of mobile U-shaped arm and driver blade, drive the motion of clamping plate mechanism holder, the cylinder rod of the locking cylinder of two clamping plate mechanisms bounces back simultaneously, drive clamp clip holder and clamp clip to return original position, clamp clip is upwards steeved by the effect of back-moving spring;
B, charging, be sent to PCB by feed arrangement by PCB to be measured and treat location;
The location of c, PCB to be measured, the cylinder rod retraction of push pedal cylinder, drive mobile U-shaped arm to retreat, mobile U-shaped arm is by the effect of driver blade, pull sliding shoe to slide backward on slide rail, thereby the clamping plate mechanism that drives clamping plate mechanism holder and be positioned on clamping plate mechanism holder moves backward, so that PCB to be measured is along the positioning strip alignment of clamp clip below;
The clamping of d, PCB to be measured, after PCB to be measured has located, the cylinder rod of the locking cylinder of clamping plate mechanism stretches out, drive clamp clip holder and clamp clip together to move, clamp clip is under the pulling of hinge, rotatable connecting portion around clamp clip and clamp clip holder rotates, and makes the outer of clamp clip be pressed in PCB to be measured above, completes the clamping of PCB to be measured;
E, test, PCB clamping and positioning device to be measured to other stations, completes test process together with PCB integrated moving to be measured;
F, tested after, the cylinder rod of locking cylinder is retracted, and drives clamp clip holder and clamp clip together to move, and clamp clip is under the effect of back-moving spring, rotatable connecting portion around clamp clip and clamp clip holder upwards rotates, and the clamp clip of clamping plate mechanism unclamps the clamping to pcb board;
The reset of g, PCB clamping and positioning device to be measured, after clamp clip resets, the cylinder rod of push pedal cylinder is released, by the effect of mobile U-shaped arm and driver blade, the clamping plate mechanism that makes clamping plate mechanism holder and be located thereon travels forward, to cancel the location to PCB, after this can take the PCB having tested away.
9. PCB clamping positioning method to be measured according to claim 8, it is characterized in that: in described step c, when PCB to be measured aligns along the positioning strip below clamp clip, the inductor that is positioned at positioning strip one side can be responded to the position of PCB to be measured, if locate inaccurately, stop the d of step; If accurate positioning, continues steps d.
10. PCB clamping positioning method to be measured according to claim 8, is characterized in that: in described step e, described other stations comprise PCB take pictures station and PCB test station, and test process is the test of taking pictures with PCB of PCB.
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| CN201210339863.2A CN103675642B (en) | 2012-09-14 | 2012-09-14 | A kind of PCB clamping and positioning device to be measured and clamping positioning method thereof |
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| CN201210339863.2A CN103675642B (en) | 2012-09-14 | 2012-09-14 | A kind of PCB clamping and positioning device to be measured and clamping positioning method thereof |
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| CN103675642B CN103675642B (en) | 2016-05-04 |
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