CN204612913U - Electric connector contact plug characteristic tester - Google Patents
Electric connector contact plug characteristic tester Download PDFInfo
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- CN204612913U CN204612913U CN201520328497.XU CN201520328497U CN204612913U CN 204612913 U CN204612913 U CN 204612913U CN 201520328497 U CN201520328497 U CN 201520328497U CN 204612913 U CN204612913 U CN 204612913U
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Abstract
The utility model relates to electric connector contact plug characteristic tester, comprise control module, control module comprises stepper motor driver and controller, controller provides instruction by stepper motor driver to stepper motor, it is characterized in that this tester also comprises mounting base, driver element, test cell and grip unit; Described driver element is arranged on mounting base, and test cell can slide on the line slideway of mounting base, and control module controls driver element action; Described mounting base comprises base plate, filler strip, line slideway, guide rail slide block and riser; Described driver element comprises ball-screw, feed screw nut, travelling platform driving bracket, left leading screw bearing, right leading screw bearing, spring coupling, stepper motor mount pad and stepper motor; Described test cell comprises digital display type contact engaging and separating force meter and travelling platform, and described grip unit comprises A fixture and B fixture.
Description
Technical field
The utility model belongs to a kind of contact element plug characteristic research device of electromechanical compo product (electric connector), is specially electric connector contact plug characteristic tester.
Background technology
Electric connector is widely used in the fields such as Aero-Space, electric power, electronics, communication, military equipment, communications and transportation and household electrical appliance, and its connection reliability is directly connected to the safe and reliable operation of whole system.Contact element is the core parts of electric connector, and its excellent structure, reliable and stable contact retention and good electric conductivity are the guarantees of electric connector contact reliability.The wearing and tearing that the insertion withdrawal process of connector causes, constantly can accumulate along with the increase of electric connector mechanically actuated number of times, the important performance indexes such as contact resistance and contact engaging and separating force is changed, and then have an impact to the contact performance of contact element and reliability.Therefore, measuring technology and the proving installation of studying electric connector contact plug characteristic are then very necessary and very urgent.
At present, in electric connector contact plug universal test techniques and proving installation research, mainly design according to different types of structure, specific use, in versatility, have certain limitation: application number be 201420544931.3 Chinese patent disclose a kind of contact engaging and separating force proving installation, its weak point is that this device can only obtain data at every turn, and the contact engaging and separating force situation of change that can not show in swapping process, the monitoring of contact engaging and separating force change procedure in electric connector swapping process can not be carried out.Application number be 201220214578.3 Chinese patent disclose electric connector contact contact engaging and separating force proving installation under a kind of hot environment, this device is used to the proving installation measuring electric connector contact contact engaging and separating force under hot environment, comprise left clamping device, right clamping device, device for measuring force, mechanical driving device, drive unit and heating arrangement, but this proving installation can only test the contact engaging and separating force of single needle contact element, inapplicable whole test product, and easily there is eccentric phenomena in experimentation, Installation and Debugging workload is larger.Notification number is the method for testing and the proving installation that disclose a kind of service life of connector in the patent of invention of 102262046A, and this device utilizes cog belt to carry out power conveying, and the reasons such as cog belt senile abrasion can cause proving installation precise decreasing; Utilize cam mechanism to realize turning to the transformation of straight reciprocating motion, control accuracy is not high.
As can be seen here, current electric connector and Related product plug characteristic test device patch product development mainly for the ad hoc structure used under special environment condition, and applicable content of the test is different with object, and driving, the kind of drive exist comparatively big error etc.Therefore, for electric connector contact plug characteristic test system, test product installation, disassembling section can be carried out fast, steadily, easily, improve test efficiency, reduce labour intensity, meanwhile, can ensure that again accurately controlling electric connector plug family curve in swapping process, Measurement accuracy swapping process becomes one of gordian technique.
Utility model content
Namely the utility model object is compared with the defect such as low, test operation workload large, drived control precision is lower automatically for electric connector plug characteristic test device versatility in current techniques, solve the gordian technique measuring electric connector contact engaging and separating force in swapping process reliably, accurately, continuously and easily, achieve can to the firm installation positioning action of Multiple Type electric connector, steadily accurately drive and test, the function such as fast acquiring plug family curve, solve that existing proving installation complex structure, precision are low, the problem of complex operation.
The technical solution of the utility model is:
A kind of electric connector contact plug characteristic tester, comprise control module, control module comprises stepper motor driver and controller, controller provides instruction by stepper motor driver to stepper motor, it is characterized in that this tester also comprises mounting base, driver element, test cell and grip unit; Described driver element is arranged on mounting base, and test cell can slide on the line slideway of mounting base, and control module controls driver element action;
Described mounting base comprises base plate, filler strip, line slideway, guide rail slide block and riser; The upper surface both sides along its length of described base plate are connected to a filler strip; A line slideway is installed with at the upper surface of each filler strip, each line slideway is all provided with guide rail slide block, guide rail slide block can move left and right on corresponding line slideway, the length of described line slideway is identical with width with the length of filler strip with width, the lower end of described riser is fixedly connected with the left end of base plate with two filler strips, riser center has a comparatively large through-hole, the comparatively large through-hole peripheral circumferential on riser evenly has several comparatively minor thread through holes;
Described driver element comprises ball-screw, feed screw nut, travelling platform driving bracket, left leading screw bearing, right leading screw bearing, spring coupling, stepper motor mount pad and stepper motor; Described ball-screw is provided with feed screw nut, and feed screw nut and travelling platform drive bracket to be solidly installed, and ball-screw is packed on base plate by left leading screw bearing and right leading screw bearing; Described spring coupling one end is connected with one end of ball-screw, and the other end is connected with the motor shaft of stepper motor; Thus, ball-screw, stepper motor and spring coupling are solidly installed, and stepper motor is coaxially connected by spring coupling with ball-screw; Described stepper motor left side is arranged on stepper motor mount pad, and stepper motor is connected with control module, and the bottom of stepper motor mount pad is fixed on base plate;
Described test cell comprises digital display type contact engaging and separating force meter and travelling platform, the back side of described digital display type contact engaging and separating force meter is fixedly connected with the middle part of travelling platform, and the left end of digital display type contact engaging and separating force meter is mutually concordant with the left end of travelling platform, in travelling platform plane and the right side of the both sides, front and back and digital display type contact engaging and separating force meter that are positioned at digital display type contact engaging and separating force meter is equipped with through hole, in travelling platform plane and the through hole of both sides, front and back being positioned at digital display type contact engaging and separating force meter be connected with the upper surface of guide rail slide block, in travelling platform plane and the through hole being positioned at the right side of digital display type contact engaging and separating force meter drives the upper surface of bracket to be connected with travelling platform,
Described grip unit comprises A fixture and B fixture, and A fixture is used for clamping electrical connector male portion, and B fixture is used for clamping electrical connector receptacle portion; Described A fixture is hollow cylinder boss structure, and the left end external diameter of A fixture and the comparatively large through-hole of riser match, and are packed on riser by screw, and the inner chamber of hollow cylinder boss structure is fixing holds electric connector male portion; Described B fixture is bilateral screw shell structure, comprise the hollow cylindrical part that two internal diameters do not wait, and be equipped with internal thread in each columnar part, internal diameter and the tested electric connector jack segment outer radius of the columnar part that internal diameter is larger match, and the internal diameter of the columnar part that internal diameter is less and the test probe external diameter of digital display type contact engaging and separating force meter match; The right-hand member of B fixture is screwed onto on the test probe of digital display type contact engaging and separating force meter, and fixing, and A fixture and B fixture are to dress of feeling at ease.
Above-mentioned electric connector contact plug characteristic tester, described A fixture comprises ring part and small column part, ring part and small column part are coaxial integral piece, the end face of ring part along the circumferential direction evenly has several through holes, matching compared with the comparatively minor thread through hole in large through-hole peripheral circumferential on the through hole on ring part end face and riser, the left end external diameter of ring part and the comparatively large through-hole of riser match; The side surface circumference of the small column part of A fixture evenly has three threaded holes, in this threaded hole, is rotary with socket head cap screw, by this socket head cap screw, electric connector is fixedly clamped.
Above-mentioned electric connector contact plug characteristic tester, described stepper motor mount pad is the bending iron plate of " L " type, comprise bottom parts, riser part and strengthen baffle plate, bottom parts right-hand member and riser part lower end are fixed, and it is fixing to carry out reinforcement by reinforcement baffle plate, described reinforcement baffle plate is that baffle plate strengthened by triangle, and the bottom parts of stepper motor mount pad is fixedly connected with base plate; The riser part of stepper motor mount pad is fixed with stepper motor.
Above-mentioned electric connector contact plug characteristic tester, described base plate is the thick iron metal plate of rectangle, and the thickness of described base plate, riser, travelling platform is all equal.
Above-mentioned electric connector contact plug characteristic tester, when carrying out electric connector contact plug characteristic test, concrete operation method is:
The first step, installation product to be tested electric connector:
Control module control step motor reversal, travelling platform moves right, after making to leave between A fixture and B fixture the distance being greater than product to be tested electric connector length, step motor stop; Product to be tested electric connector plugs together by normal operating condition, after removing external metallization plate armour, electric connector jack part is screwed in the perforate of the left end hollow cylindrical part of B fixture, and by recessed end holding screw locking; Stepper motor rotates forward, travelling platform is slowly moved to the left until the outer of product to be tested electric connector male portion props up the outer of the right-hand member of A fixture, product to be tested electric connector male portion embeds in the inner chamber of the hollow cylinder boss structure of A fixture, and be fixedly clamped, ensure that product to be tested electric connector is to feeling at ease dress;
Second step, carry out the plug characteristic test of product to be tested electric connector:
After bringing into operation, control module control step motor rotates forward, and drives ball screw turns, and then drive test cell to be moved to the left, the contact pin of product to be tested electric connector and jack are plugged together, carries out product to be tested update, step motor stop after plugging together completely also waits for 2-5 second; Then stepper motor reversion, drive test cell moves right, that carries out product to be tested electric connector extracts operation, the contact pin of product to be tested electric connector is separated with jack, step motor stop after getting back to initial position also waits for 2-5 second, in the process, test data is stored in PC through data line record by digital display type contact engaging and separating force meter; After so carrying out the cycle index specified, initial position got back to by test specimen, and stepper motor is out of service;
3rd step, draw product to be tested electric connector plug family curve according to test data:
Monitor the change with the plug time of contact engaging and separating force in swapping process continuously by digital display type contact engaging and separating force meter, go forward side by side line item and storage, utilize the Plotting data be stored in PC to go out product to be tested electric connector plug family curve.
Above-mentioned electric connector contact plug characteristic tester, in described operation method, the plug speed of product to be tested electric connector contact pin and jack is per hourly be not more than 300 times.
Marked improvement of the present utility model is, test simply to dispatch from the factory the contact engaging and separating force test unit tested with connect-disconnect life compare with existing, the explicit contact engaging and separating force meter of the utility model electric connector contact plug characteristic tester Binding number carries out data test, can not only connect-disconnect life test be carried out, plug family curve can also be exported to single plug test; In the utility model, driver element is that stepper motor is connected with ball-screw by shaft coupling, for coaxial transmission, abandon the mode of being carried out power transmission in existing design by belt, cog belt or the mode such as cam, hinge, avoided because the part aging such as belt, cog belt, cam, hinge are worn and torn the problem that the measuring accuracy that causes declines; Secondly in the utility model, fixture can adjust A holder aperture size according to demand or change B fixture, thus takes into account the plug test of the electric connector of the various models of similar structures, has stronger versatility.A fixture adopts the design of class scroll chuck, makes electric connector contact pin and jack can realize filling feeling at ease of fast accurate.A fixture and B fixture are all detachable block, when carrying out the electric connector contact engaging and separating force characteristic test of other models, can use corresponding matched clamp easily instead, can meet the demand of different electric connector plug characteristic test.
Compared with prior art, the beneficial effects of the utility model are:
1. in the utility model, fixture can adjust A holder aperture size according to demand or change B fixture, thus takes into account the plug test of the electric connector of the various models of similar structures, has stronger versatility.
2. the utility model particular/special requirement of testing according to electric connector contact engaging and separating force, in mounting base, riser will ensure equal to the distance of base plate with the axle center of the test probe of digital display type contact engaging and separating force meter compared with the center of large through-hole to the distance of base plate all the time, the base plate of preferred same thickness, riser and travelling platform, and base plate, filler strip, the depth of parallelism of the upper and lower surface of travelling platform reaches 0.02mm, the surfaceness of upper and lower surface is not more than RA0.8, ensure that fixture to dress of feeling at ease, and then ensure that whole tester working stability in test process, reduce the error of test data, improve measuring accuracy.
3. digital display type contact engaging and separating force meter is packed on travelling platform and forms test cell by the utility model, coordinate the effect of driver element again, the test of high-accuracy property can be realized, solve the difficult point of electric connector contact engaging and separating force family curve digital independent and storage well, simplify tester, make test operation easier, efficiency is higher.
4. base plate of the present utility model adopts the thick cast iron plate of rectangle, compared with steel plate conventional in prior art, have cost performance high, there is better shock absorbing, and it is not yielding, effectively reduce the miniature deformation of tester in test process, provide safeguard for improving measuring accuracy, and then ensure the steady operation of tester.
5. the grip unit of the utility model design comprises A fixture and B fixture, these two parts are mutual independence, using B fixture as fixed reference installation site, to utilize in A fixture three screws can the position of flexible electric connector " contact pin " part, both can solve electric connector contact pin jack two-part to heart installation question, and again reduce electric connector test product and the difficulty and fussy degree that regulate are installed.
6. driver element of the present utility model adopts stepper motor coaxial drive, stepper motor rotating campaign is utilized to drive ball screw turns, bracket is driven to drive travelling Platform movement via travelling platform, and then drive the to-and-fro movement of digital display type contact engaging and separating force meter, realize electric connector plug (namely contact pin and jack insertion and extract) continued operation and single-step debug operate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram such as geodesic structure such as axle such as grade of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 2 is the main TV structure schematic diagram of the mounting base 1 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 3 is the plan structure schematic diagram of the mounting base 1 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 4 is the left TV structure schematic diagram of the mounting base 1 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 5 is the main TV structure schematic diagram of the driver element 2 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 6 is the plan structure schematic diagram of the driver element 2 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 7 is the left TV structure schematic diagram of the driver element 2 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 8 is the main TV structure schematic diagram of the test cell 3 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Fig. 9 is the plan structure schematic diagram of the test cell 3 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Figure 10 is the left TV structure schematic diagram of the test cell 3 of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Figure 11 is the three-view diagram of the travelling platform driving bracket 23 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 11 (a) is the main TV structure schematic diagram that travelling platform drives bracket 23; Figure 11 (b) is the plan structure schematic diagram of travelling platform driving bracket 23; Figure 11 (c) is the left TV structure schematic diagram of travelling platform driving bracket 23;
Figure 12 is front view and the cut-open view of the left leading screw bearing 24 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 12 (a) main TV structure schematic diagram that is left leading screw bearing 24; Figure 12 (b) is the sectional structure schematic diagram in A-A face in Figure 12 (a);
Figure 13 is the three-view diagram of the stepper motor mount pad 27 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 13 (a) main TV structure schematic diagram that is stepper motor mount pad 27; The plan structure schematic diagram that Figure 13 (b) is stepper motor mount pad 27; The left TV structure schematic diagram that Figure 13 (c) is stepper motor mount pad 27;
Figure 14 is front view and the left view of the travelling platform 32 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 14 (a) is the main TV structure schematic diagram of travelling platform 32; Wherein Figure 14 (b) is the left TV structure schematic diagram of travelling platform 32;
Figure 15 is front view and the cut-open view of the A fixture 41 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 15 (a) main TV structure schematic diagram that is A fixture 41; The sectional structure schematic diagram in the B-B face that Figure 15 (b) is Figure 15 (a);
Figure 16 is front view and the cut-open view of the B fixture 42 of a kind of embodiment of the utility model electric connector contact plug characteristic tester; Wherein Figure 16 (a) main TV structure schematic diagram that is B fixture 42; The sectional structure schematic diagram in the C-C face that Figure 16 (b) is Figure 16 (a);
Figure 17 is the controlling test process flow diagram of a kind of embodiment of the utility model electric connector contact plug characteristic tester;
Figure 18 is contact engaging and separating force time history plot in electric connector the 1st swapping process of embodiment 1;
Figure 19 is the electric connector contact engaging and separating force time history plot in the 1st plug, the 300th plug, the 500th plug and the 800th swapping process respectively of embodiment 1;
Figure 20 is the curve map of peak insertion force in electric connector the 1st time to the 800th time swapping process of embodiment 1 and maximum separation power;
In figure, 1-mounting base, 2-driver element, 3-test cell, 4-grip unit, 11-base plate, 12-filler strip, 13-line slideway, 14-guide rail slide block, 15-riser, 21-ball-screw, 22-feed screw nut, 23-move about, and platform drives bracket, 24-left leading screw bearing, the right leading screw bearing of 25-, 26-spring coupling, 27-stepper motor mount pad, 28-stepper motor (or motor), 31-digital display type contact engaging and separating force meter, 32-move about platform, 41-A fixture, 42-B fixture.
Embodiment
The utility model electric connector contact plug characteristic tester (being called for short tester, see Fig. 1-16) comprises mounting base 1, driver element 2, test cell 3, control module (not shown in FIG.) and grip unit 4; Described driver element 2 is arranged on mounting base 1, test cell 3 can slide on the line slideway 13 of mounting base 1, control module comprises stepper motor driver and controller, and controller provides instruction by stepper motor driver to stepper motor, and then controls driver element action;
Described mounting base 1 comprises base plate 11, filler strip 12, line slideway 13, guide rail slide block 14 and riser 15; The upper surface both sides along its length of described base plate 11 are connected to a filler strip 12; A line slideway 13 is installed with at the upper surface of each filler strip 12, each line slideway 13 is all provided with guide rail slide block 14, guide rail slide block 14 can move left and right on corresponding line slideway 13, the length of described line slideway 13 is identical with width with the length of filler strip 12 with width, the lower end of described riser 15 is fixedly connected with the left end of base plate 11 with two filler strips 12, riser 15 center has a comparatively large through-hole, the comparatively large through-hole peripheral circumferential on riser 15 evenly has several comparatively minor thread through holes;
Described driver element 2 comprises ball-screw 21, feed screw nut 22, travelling platform driving bracket 23, left leading screw bearing 24, right leading screw bearing 25, spring coupling 26, stepper motor mount pad 27 and stepper motor 28; Described ball-screw 21 is provided with feed screw nut 22, and feed screw nut 22 and travelling platform drive bracket 23 to be solidly installed, and ball-screw 21 is packed on base plate 11 by left leading screw bearing 24 and right leading screw bearing 25; Described spring coupling 26 one end is connected with one end of ball-screw 21, and the other end is connected with the motor shaft of stepper motor 28; Thus, ball-screw 21, stepper motor 28 are solidly installed with spring coupling 26, and stepper motor 28 is coaxially connected by spring coupling 26 with ball-screw 21; Described stepper motor 28 left side is arranged on stepper motor mount pad 27, and stepper motor 28 is connected with control module, and the bottom of stepper motor mount pad 27 is fixed on base plate 11;
Described test cell 3 comprises digital display type contact engaging and separating force meter 31 and travelling platform 32, the back side of described digital display type contact engaging and separating force meter 31 is fixedly connected with the middle part of travelling platform 32, and the left end of digital display type contact engaging and separating force meter 31 is mutually concordant with the left end of travelling platform 32, in travelling platform 32 plane and the right side of the both sides, front and back and digital display type contact engaging and separating force meter 31 that are positioned at digital display type contact engaging and separating force meter 31 is equipped with through hole, in travelling platform 32 plane and the through hole being positioned at the both sides, front and back of digital display type contact engaging and separating force meter 31 be connected with the upper surface of guide rail slide block 14, in travelling platform 32 plane and the through hole being positioned at the right side of digital display type contact engaging and separating force meter 31 drives the upper surface of bracket 23 to be connected with travelling platform,
Described grip unit 4 comprises A fixture 41 and B fixture 42, A fixture 41 for clamping electrical connector male portion, and B fixture 42 is for clamping electrical connector receptacle portion; Described A fixture 41 is hollow cylinder boss structure, and the left end external diameter of A fixture 41 and the comparatively large through-hole of riser 15 match, and are packed on riser 15 by screw, and the inner chamber of hollow cylinder boss structure is fixing holds electric connector male portion; Described B fixture 42 is bilateral screw shell structure, comprise the hollow cylindrical part that two internal diameters do not wait, and be equipped with internal thread in each columnar part, internal diameter and the tested electric connector jack segment outer radius of the columnar part that internal diameter is larger match, and the internal diameter of the columnar part that internal diameter is less and the test probe external diameter of digital display type contact engaging and separating force meter 31 match; The right-hand member of B fixture 42 is screwed onto on the test probe of digital display type contact engaging and separating force meter 31, and fixing, and A fixture 41 and B fixture 42 carry out dress of feeling at ease.
Embodiment 1
Fig. 1 is the schematic diagram such as geodesic structure such as axle such as grade of electric connector contact plug characteristic tester, electric connector contact plug characteristic tester mainly comprises mounting base 1, driver element 2, test cell 3, control module and grip unit 4, driver element 2 is arranged on mounting base 1, test cell 3 can slide on the line slideway 13 of mounting base 1, grip unit 4 comprises A fixture 41 and B fixture 42, A fixture 41 is fixed on the left end riser 15 of mounting base 1, B fixture 42 is fixed on the test probe of test cell 3, and control module controls the action of driver element 2.
As in Figure 2-4, mounting base 1 comprises base plate 11, filler strip 12, line slideway 13, guide rail slide block 14 and riser 15 to the structure of mounting base 1; Base plate 11 is rectangle iron metal plate, and base plate 11 edge along its length equidistantly has seven counterbores from the bottom to top respectively, and the left side of base plate 11 and bottom surface are equipped with threaded hole; Described filler strip 12 is strip metal plate, total two, front and back, filler strip 12 vertical direction has tapped through hole, counterbore on the tapped through hole of filler strip 12 and base plate 11 matches, socket head cap screw screws in the tapped through hole of filler strip 12 by the counterbore of base plate 11 from the bottom to top, two filler strips 12 are vertically fixed on the upper surface of base plate 11 respectively, the left side of filler strip 12 is also provided with threaded hole.Described line slideway 13 is strip metal guide rail, also two, front and back are had, the shape of the xsect of line slideway 13 is I shape, the length of line slideway 13 is identical with width with the length of filler strip 12 with width, and counterbore is had on the position that the tapped through hole with filler strip 12 matches, socket head cap screw screws in the tapped through hole of filler strip 12 from top to bottom through the counterbore of line slideway 13, is packed in by line slideway 13 on filler strip 12; The upper surface of described guide rail slide block 14 is square boss structure, and bottom is the hollow structure matched with line slideway 13, and ensure that guide rail slide block 14 and line slideway 13 are interlocked, guide rail slide block 14 can move left and right on corresponding line slideway 13; The corner of the boss structure upper surface of guide rail slide block 14 all has threaded hole; Riser 15 (see Fig. 4) is one piece of " n " shape sheet metal, and the center of riser 15 has a comparatively large through-hole, the comparatively large through-hole peripheral circumferential on riser 15 evenly has four comparatively minor thread through holes; Riser 15 has three cross through hole in the both sides, bottom compared with large through-hole, from top to bottom, above two cross through hole by socket head cap screw, the threaded hole of riser 15 with the left side of filler strip 12 is fixed; The threaded hole of riser 15 with base plate 11 left side is fixed by socket head cap screw by nethermost cross through hole, the height of the height of three cross through hole and the threaded hole of filler strip 12 left side and the height of base plate 11 upper screwed hole match, and ensure that the bottom surface of installing back vertical plate 15 is mutually concordant with the bottom surface of base plate 11, thus riser 15 and base plate 11 and filler strip 12 are solidly installed.
As illustrated in figs. 5-7, driver element 2 comprises ball-screw 21, feed screw nut 22, travelling platform driving bracket 23, left leading screw bearing 24, right leading screw bearing 25, spring coupling 26, stepper motor mount pad 27 and stepper motor 28 to the structure of driver element 2; Ball-screw 21 side is with keyway, and keyway is not with in side.The aperture of the middle axial threaded hole of feed screw nut 22 is suitable with the external diameter of ball-screw 21, and ball-screw 21 screws in feed screw nut 22 through threaded hole; Travelling platform drives bracket 23 (as shown in figure 11) to be rectangular parallelepiped derby, and both sides, upper surface have two vertical threaded holes, and have large through-hole in the middle of side, large through-hole both sides have two axial threaded hole vertically; Travelling platform drives bracket 23 to be enclosed within feed screw nut 22, and socket head cap screw screws in travelling platform through feed screw nut 22 and drives in two axial threaded hole of bracket 23, thus drives bracket 23 to be solidly installed on feed screw nut 22 and travelling platform;
Left leading screw bearing 24 (as shown in figure 12) is " convex " oblique crank Z bearing, and two piece of 6001 bearing is equipped with in inside, is provided with bearing cap, compresses bearing by bearing cap outside bearing, prevents it from deviating from.Left leading screw bearing 24 bottom is packed on the relevant position of base plate 11; Shape and the structure of the shape of right leading screw bearing 25 and structure and left leading screw bearing 24 are consistent, match, and lower end are packed on the relevant position of base plate 11 with the other end of ball-screw 21.The both sides spindle nose of ball-screw 21 to be inserted respectively in the bearing of left leading screw bearing 24 and right leading screw bearing 25 and is closely bonded together by the bearing in it and ball-screw 21.Described spring coupling 26 one end is connected with ball-screw 21 one end with keyway, and is fixed by screw, and spring coupling 26 other end is connected with the motor shaft of stepper motor 28, and is fixed by screw; Thus, ball-screw 21, stepper motor 28 are solidly installed with spring coupling 26, and stepper motor 28 is coaxially connected by spring coupling 26 with ball-screw 21.Stepper motor mount pad 27 (as shown in figure 13) is one piece of bending iron plate in " L " type, comprise bottom parts, riser part and strengthen baffle plate, bottom parts right-hand member and riser part lower end are fixed, and it is fixing to carry out reinforcement by reinforcement baffle plate, described reinforcement baffle plate is that baffle plate strengthened by triangle, the corner of base plate 11 part of stepper motor mount pad 27 has four counterbores, by socket head cap screw, the bottom parts of stepper motor mount pad 27 is fixedly connected with base plate 11; A through hole is had in the middle of riser 15 part of stepper motor mount pad 27, the through hole that the motor shaft of stepper motor 28 bends iron plate riser part through " L " type is connected with spring coupling 26, four angle positions of the riser part of " L " type bending iron plate have four threaded holes, are packed in the riser part of stepper motor mount pad 27 by stepper motor 28 by socket head cap screw.The bearing center of left leading screw bearing 24 and right leading screw bearing 25 is equal to the distance of base plate 11 with the motor shaft center of stepper motor 28 to the distance of base plate 11.The action such as forward and backward or stopping is carried out by control module control step motor 28.
The structure of test cell 3 as seen in figs. 8-10, test cell 3 comprises digital display type contact engaging and separating force meter 31 and travelling platform 32, with button and display screen on the front of described digital display type contact engaging and separating force meter 31, top-rear side position is with four threaded holes, a cylindrical metal bar is provided with in the middle of the left end of digital display type contact engaging and separating force meter 31, be the test probe of digital display type contact engaging and separating force meter 31, Metallic rod left end is threaded.Described travelling platform 32 (shown in Figure 14) is one piece of rectangular metallic plate, the back side of digital display type contact engaging and separating force meter 31 is fixedly connected with by socket head cap screw with the middle part of travelling platform 32, and the left side of digital display type contact engaging and separating force meter 31 is mutually concordant with the left side of travelling platform 32, in travelling platform 32 plane and the right side of the both sides, front and back and digital display type contact engaging and separating force meter 31 that are positioned at digital display type contact engaging and separating force meter 31 is equipped with through hole, in travelling platform 32 plane and the threaded hole of the through hole and guide rail slide block 14 that are positioned at the both sides, front and back of digital display type contact engaging and separating force meter 31 match, by socket head cap screw by travelling platform 32 plane and the through hole being positioned at the both sides, front and back of digital display type contact engaging and separating force meter 31 be connected with the threaded hole of guide rail slide block 14, thus travelling platform 32 is packed on two guide rail slide blocks 14, in travelling platform 32 plane and the through hole being positioned at the right side of digital display type contact engaging and separating force meter 31 drives two of bracket 23 vertical threaded holes to be connected by socket head cap screw and travelling platform, travelling platform 32 is packed in travelling platform to drive on bracket 23.
As shown in figures 15-16, grip unit 4 comprises A fixture 41 and B fixture 42 to the structure of grip unit 4.A fixture 41 is for clamping electrical connector male portion, and B fixture 42 is for clamping electrical connector receptacle portion.A fixture 41 (as shown in figure 15) entirety is a hollow cylinder boss structure, similar scroll chuck design, comprise ring part and small column part, ring part and small column part are coaxial integral piece, the inner chamber of hollow cylinder boss structure is for holding electric connector male portion, the end face of ring part along the circumferential direction evenly has four through holes, matching compared with the comparatively minor thread through hole in large through-hole peripheral circumferential on the through hole on ring part end face and riser 15, by socket head cap screw by the through hole on the ring part end face of A fixture 41 and being connected compared with the comparatively minor thread through hole in large through-hole peripheral circumferential on riser 15, thus A fixture 41 is packed on riser 15, the side surface circumference of the small column part of A fixture 41 evenly has three threaded holes, in this threaded hole, is rotary with socket head cap screw, thus realize being fixedly clamped of electric connector.B fixture 42 (as shown in figure 16) is bilateral screw shell structure, comprise the hollow cylindrical part that two internal diameters do not wait, every side is all with recessed end holding screw, internal diameter and the tested electric connector jack segment outer radius of the columnar part that internal diameter is larger match, and cover has non-standard fine thread on one end inwall that internal diameter is larger, electric connector is screwed in B fixture 42 and is locked by recessed end holding screw; The internal diameter of the columnar part that internal diameter is less and the test probe external diameter of digital display type contact engaging and separating force meter 31 match, on the inwall of the less one end of internal diameter, also cover has screw thread, B fixture 42 is screwed onto on the test probe of digital display type contact engaging and separating force meter 31 by one end that internal diameter is less, and by recessed end holding screw locking, B fixture 42 is packed on the test probe of digital display type contact engaging and separating force meter 31.Riser 15 equal to the centre distance of base plate 11 with the center of the test probe of digital display type contact engaging and separating force meter 31 to the centre distance of base plate 11 compared with the center of large through-hole, ensures that A fixture 41 and B fixture 42 carry out dress of feeling at ease.
The operation method of the utility model electric connector contact plug characteristic tester is: when carrying out electric connector contact plug characteristic test, tester is assembled according to above-mentioned connected mode, arranging stepper motor step angle by control module is 1.8 °, holding torque 1.35Nm, its carrying out practically method is:
The first step, installation product to be tested electric connector:
Control module control step motor 28 reverses, and travelling platform 32 moves right, after making to leave between A fixture 41 and B fixture 42 distance being greater than product to be tested electric connector length, and stepper motor 28 stall.Product to be tested electric connector plugs together by normal operating condition, after removing external metallization plate armour, electric connector jack part is screwed in the perforate of the left end hollow cylindrical part of B fixture 42, and by recessed end holding screw locking.Stepper motor 28 rotates forward, travelling platform 32 is slowly moved to the left until the outer of product to be tested electric connector male portion props up the outer of the small column part (right-hand member of A fixture 41) of A fixture 41, product to be tested electric connector male portion embeds in the inner chamber of the hollow cylinder boss structure of A fixture 41, by three trip bolts corresponding with the threaded hole regulated on the side surface circumference of the small column part of A fixture 41, electric connector male portion is fastened in A fixture 41, and ensures that product to be tested electric connector is to dress of feeling at ease.
Second step, carry out the plug characteristic test of product to be tested electric connector:
After bringing into operation, stepper motor 28 rotates forward, and drives ball-screw 21 to rotate, and then drive test cell 3 to be moved to the left, the contact pin of product to be tested electric connector and jack are plugged together, carries out product to be tested update, when plugging together rear motor stall completely and waiting for 2 seconds; Then stepper motor 28 reverses, test cell 3 is driven to move right, that carries out product to be tested electric connector extracts operation, the contact pin of product to be tested electric connector is separated with jack, stepper motor 28 stall after getting back to initial position also waits for 2 seconds, in the process, test data is stored in PC through data line record by digital display type contact engaging and separating force meter 31.After so carrying out the cycle index specified, initial position got back to by test specimen, and motor is out of service.
3rd step, draw product to be tested electric connector plug family curve according to test data:
By contact engaging and separating force in digital display type contact engaging and separating force meter 31 continuously monitoring swapping process with the change of plug time, go forward side by side line item and storage, utilize the Plotting data be stored in PC to go out product to be tested electric connector plug family curve.
Does is the control flow (as shown in figure 17) of control module of the utility model electric connector contact plug characteristic tester: beginning → counter O reset → setting motor speed → motor rotates forward 1200 steps → motor pause 2s → motor reversal 1200 steps → motor pause 2s → complete predetermined cycle index?
terminate;
return motor and rotate forward 1200 steps.
Table 1 is depicted as the time dependent test figure of contact engaging and separating force in the circular three core electric connector swapping process of 25M-3AE, have recorded the circular three core electric connectors of 25M-3AE respectively and carry out the 1st plug, 300th plug, contact engaging and separating force delta data in time when the 500th plug and the 800th plug.Figure 18 and Figure 19 is this electric connector contact engaging and separating force variation characteristic curve in time by the Plotting data recorded in table 1.
In Figure 18 and Figure 19, abscissa representing time, ordinate represent plug force value, in the data that digital display type contact engaging and separating force meter gathers, insertion force is shown as negative value, separating force is shown as on the occasion of and contacted at first with jack by contact pin and the time producing insertion force numerical value was designated as 0 moment, in operational process, according to the time interval (0.08s) of setting, continuous print data record is carried out to contact engaging and separating force experimental data, and upload to computer end and carry out data processing.
Contact engaging and separating force delta data (unit: N) in time during the circular three core electric connectors of table 1 25M-3AE different plug number of times
Table 2 is depicted as the circular three core electric connectors of 25M-3AE in the peak insertion force of electric connector entirety of carrying out when plugging wear test and the test figure of maximum separation power.Figure 20 is the curve map of peak insertion force in the swapping process of the circular three core electric connector of 25M-3AE the 1st time to the 800th time and maximum separation power.
Test result shown in above-mentioned Figure 18-20 has ubiquity, be applicable to carry out with the utility model tester the electric connector that detects, be particularly useful for the plug test of round electric connector, in test process, plug that speed is per hour is not more than 300 times, be equivalent to every 12s and once plug.Therefore, the utility model can export plug family curve to single plug test, completes contact engaging and separating force test, and can read these electric connector contact engaging and separating force family curve data and store.
The circular three core electric connector peak insertion force of table 2 25M-3AE and maximum separation power experimental data (unit: N)
The design of mounting base 1 of the present utility model, driver element 2, test cell 3 meets that the work characteristics of electric connector and plug characteristic test require, its structure is simple, and easy to assembly, simple operation, can reduce the measuring error because the manual operations such as installation cause.Wherein, mounting base 1 is made up of base plate 11, filler strip 12, line slideway 13, guide rail slide block 14, riser 15, and this few moieties into close is solidly installed, and base plate 11 selects rectangle cast iron plate, ensure that the requirement to equipment rigidity and intensity in test process, ensure the stable installation of tester entirety; The thickness of riser 15 is suitable with base plate 11, thickness ensure that material stiffness greatly, reduce the deformation of riser 15 in swapping process, and be fixedly connected with filler strip 12 with base plate 11 by the screw of relevant position, each filler strip 12 upper and lower end face machining precision is high, the depth of parallelism will reach 0.02mm, the surface roughness requirements of large reaches RA0.8 up and down, two filler strips 12 are highly identical, ensure that the line slideway 13 be fixedly mounted with thereon is parallel with base plate 11, thus ensure test cell 3 mounted thereto can on guide rail parallel sliding and can not tilted upward; Will ensure the center consistency from top to bottom of A fixture 41 and B fixture 42 when the height design of test cell 3, left and right aligns.Especially by regulating three screws of A fixture 41 protrusions part, the fine difference of the clip position of the electric connector jack parts of flexible adaptation B holder, finally completes dress of feeling at ease.
Driver element 2 of the present utility model is coaxially installed by spring coupling 26 and ball-screw 21 by stepper motor 28, wherein stepper motor 28 is packed on base plate 11 by stepper motor mount pad 27, ball-screw 21 is packed on base plate 11 by left leading screw bearing 24, right leading screw bearing 25, form gear train, structure is simple, and precision is high.
Digital display type contact engaging and separating force meter 31 in the utility model adopts horizontal mounting means, improve the installation of digital display type contact engaging and separating force meter 31, regulate and the convenience of disassembling section, ensure that in the installation of product to be tested electric connector, adjustment and unloading process simultaneously, the fine difference of installation site can not affect the precision of test, reduce labour intensity and triviality, improve work efficiency.Adopt digital display type contact engaging and separating force meter 31 directly can read experimental data and directly export and store data, when solving existing contact engaging and separating force characteristic test well, electric connector measuring accuracy is low, is difficult to the problem of reading contact engaging and separating force; Utilize the method simultaneously, decrease the complicacy of tester, make test operation easier, efficiency is higher.
The through hole internal diameter of A fixture 41 of the present utility model is larger than the diameter of round electric connector, the round electric connector of different size all can stretch into wherein, when product to be tested electric connector to be stretched in A fixture 41 and to be fixed by three screws, A fixture 41 need not be frequently changed because gripping object diameter is different, universal strong, regulates work simple and efficient.In addition, A fixture 41 and B fixture 42 are all detachable block, when carrying out the electric connector contact engaging and separating force characteristic test of other models, can use corresponding matched clamp group instead, and easy accessibility.
The utility model screw used is all socket head cap screw, be convenient to fastening, dismantle, be not easy sliding angle, socket head cap screw socket head cap screw special spanner tightens, tighten compared to outer-hexagonal bolts spanner, more be conducive to operating in narrow space, make the installation of the integral installation of device and electric connector measured piece and fixation procedure laborsaving, convenient, efficient.But the socket head cap screw in the utility model is fixing also can adopt other common technology means of this area, be closely fixed as prerequisite with what ensure tester entirety.
"front", "rear" involved in the utility model, "left", "right", " on ", the noun of locality such as D score, for benchmark with the figure such as geodesic structure such as axle such as grade of Fig. 1, be a relative concept, namely direction, riser 15 place is left, and direction, stepper motor 28 place is right.
Embodiment 2
Adopt the connection described in embodiment 1 and position relationship in the present embodiment, described ball screw 21 selects TBI1605 single-nut ball screw pair (standard component), and line slideway 13 selects HCR20 type line slideway (standard component); Guide rail slide block 14 is high assembling square slide block; Control module comprises stepper motor driver and controller, controller provides instruction by stepper motor driver to stepper motor, the present embodiment selects 57 stepper motors of 76mm to provide power, step angle is 1.8 °, holding torque 1.35Nm, stepper motor driver adopts 2M542-N angularly constant moment of force driver, positive CW01 type controllor for step-by-step motor during controller adopts.Riser 15 is rectangular parallelepiped sheet metal, product to be tested electric connector is the circular three core electric connectors of 18M-3AE, this product to be tested electric connector can complete contact engaging and separating force test by the tester of the present embodiment, and can read these electric connector contact engaging and separating force family curve data and store.
The utility model is not addressed part and is applicable to prior art.
Claims (4)
1. an electric connector contact plug characteristic tester, comprise control module, control module comprises stepper motor driver and controller, controller provides instruction by stepper motor driver to stepper motor, it is characterized in that this tester also comprises mounting base, driver element, test cell and grip unit; Described driver element is arranged on mounting base, and test cell can slide on the line slideway of mounting base, and control module controls driver element action;
Described mounting base comprises base plate, filler strip, line slideway, guide rail slide block and riser; The upper surface both sides along its length of described base plate are connected to a filler strip; A line slideway is installed with at the upper surface of each filler strip, each line slideway is all provided with guide rail slide block, guide rail slide block can move left and right on corresponding line slideway, the length of described line slideway is identical with width with the length of filler strip with width, the lower end of described riser is fixedly connected with the left end of base plate with two filler strips, riser center has a comparatively large through-hole, the comparatively large through-hole peripheral circumferential on riser evenly has several comparatively minor thread through holes;
Described driver element comprises ball-screw, feed screw nut, travelling platform driving bracket, left leading screw bearing, right leading screw bearing, spring coupling, stepper motor mount pad and stepper motor; Described ball-screw is provided with feed screw nut, and feed screw nut and travelling platform drive bracket to be solidly installed, and ball-screw is packed on base plate by left leading screw bearing and right leading screw bearing; Described spring coupling one end is connected with one end of ball-screw, and the other end is connected with the motor shaft of stepper motor; Thus, ball-screw, stepper motor and spring coupling are solidly installed, and stepper motor is coaxially connected by spring coupling with ball-screw; Described stepper motor left side is arranged on stepper motor mount pad, and stepper motor is connected with control module, and the bottom of stepper motor mount pad is fixed on base plate;
Described test cell comprises digital display type contact engaging and separating force meter and travelling platform, the back side of described digital display type contact engaging and separating force meter is fixedly connected with the middle part of travelling platform, and the left end of digital display type contact engaging and separating force meter is mutually concordant with the left end of travelling platform, in travelling platform plane and the right side of the both sides, front and back and digital display type contact engaging and separating force meter that are positioned at digital display type contact engaging and separating force meter is equipped with through hole, in travelling platform plane and the through hole of both sides, front and back being positioned at digital display type contact engaging and separating force meter be connected with the upper surface of guide rail slide block, in travelling platform plane and the through hole being positioned at the right side of digital display type contact engaging and separating force meter drives the upper surface of bracket to be connected with travelling platform,
Described grip unit comprises A fixture and B fixture, and A fixture is used for clamping electrical connector male portion, and B fixture is used for clamping electrical connector receptacle portion; Described A fixture is hollow cylinder boss structure, and the left end external diameter of A fixture and the comparatively large through-hole of riser match, and are packed on riser by screw, and the inner chamber of hollow cylinder boss structure is fixing holds electric connector male portion; Described B fixture is bilateral screw shell structure, comprise the hollow cylindrical part that two internal diameters do not wait, and be equipped with internal thread in each columnar part, internal diameter and the tested electric connector jack segment outer radius of the columnar part that internal diameter is larger match, and the internal diameter of the columnar part that internal diameter is less and the test probe external diameter of digital display type contact engaging and separating force meter match; The right-hand member of B fixture is screwed onto on the test probe of digital display type contact engaging and separating force meter, and fixing, and A fixture and B fixture are to dress of feeling at ease.
2. electric connector contact plug characteristic tester according to claim 1, it is characterized in that described A fixture comprises ring part and small column part, ring part and small column part are coaxial integral piece, the end face of ring part along the circumferential direction evenly has several through holes, matching compared with the comparatively minor thread through hole in large through-hole peripheral circumferential on the through hole on ring part end face and riser, the left end external diameter of ring part and the comparatively large through-hole of riser match; The side surface circumference of the small column part of A fixture evenly has three threaded holes, in this threaded hole, is rotary with socket head cap screw, by this socket head cap screw, electric connector is fixedly clamped.
3. electric connector contact plug characteristic tester according to claim 1, it is characterized in that described stepper motor mount pad is the bending iron plate of " L " type, comprise bottom parts, riser part and strengthen baffle plate, bottom parts right-hand member and riser part lower end are fixed, and it is fixing to carry out reinforcement by reinforcement baffle plate, described reinforcement baffle plate is that baffle plate strengthened by triangle, and the bottom parts of stepper motor mount pad is fixedly connected with base plate; The riser part of stepper motor mount pad is fixed with stepper motor.
4. electric connector contact plug characteristic tester according to claim 1, is characterized in that described base plate is the thick iron metal plate of rectangle, and the thickness of described base plate, riser, travelling platform is all equal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328497.XU CN204612913U (en) | 2015-05-20 | 2015-05-20 | Electric connector contact plug characteristic tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328497.XU CN204612913U (en) | 2015-05-20 | 2015-05-20 | Electric connector contact plug characteristic tester |
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| CN204612913U true CN204612913U (en) | 2015-09-02 |
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| CN201520328497.XU Withdrawn - After Issue CN204612913U (en) | 2015-05-20 | 2015-05-20 | Electric connector contact plug characteristic tester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819839A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Electric connector contact element plug-pull feature tester |
| CN105547662A (en) * | 2015-12-03 | 2016-05-04 | 中国石油大学(北京) | Non-steady state friction on-line testing experiment device of pig |
| CN110632416A (en) * | 2019-09-12 | 2019-12-31 | 艾体威尔电子技术(北京)有限公司 | Device and method for detecting instant disconnection of probe |
| CN111504372A (en) * | 2020-04-20 | 2020-08-07 | 哈尔滨工业大学 | Experimental device for analyzing assembling relation of contact elements of electric connector and experimental method based on experimental device |
| CN112363007A (en) * | 2020-12-04 | 2021-02-12 | 四川极速智能科技有限公司 | Display aging equipment |
| CN116559731A (en) * | 2023-07-07 | 2023-08-08 | 深圳市安锐微电子科技有限公司 | Device and process for testing connection of mobile phone data line connector |
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2015
- 2015-05-20 CN CN201520328497.XU patent/CN204612913U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819839A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Electric connector contact element plug-pull feature tester |
| CN105547662A (en) * | 2015-12-03 | 2016-05-04 | 中国石油大学(北京) | Non-steady state friction on-line testing experiment device of pig |
| CN105547662B (en) * | 2015-12-03 | 2018-04-17 | 中国石油大学(北京) | Wiper unstable state friction on-line testing experimental provision |
| CN110632416A (en) * | 2019-09-12 | 2019-12-31 | 艾体威尔电子技术(北京)有限公司 | Device and method for detecting instant disconnection of probe |
| CN110632416B (en) * | 2019-09-12 | 2022-02-01 | 艾体威尔电子技术(北京)有限公司 | Device and method for detecting instant disconnection of probe |
| CN111504372A (en) * | 2020-04-20 | 2020-08-07 | 哈尔滨工业大学 | Experimental device for analyzing assembling relation of contact elements of electric connector and experimental method based on experimental device |
| CN112363007A (en) * | 2020-12-04 | 2021-02-12 | 四川极速智能科技有限公司 | Display aging equipment |
| CN112363007B (en) * | 2020-12-04 | 2024-02-23 | 四川极速智能科技有限公司 | Display ageing equipment |
| CN116559731A (en) * | 2023-07-07 | 2023-08-08 | 深圳市安锐微电子科技有限公司 | Device and process for testing connection of mobile phone data line connector |
| CN116559731B (en) * | 2023-07-07 | 2023-09-08 | 深圳市安锐微电子科技有限公司 | Device and process for testing connection of mobile phone data line connector |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20160406 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |