CN201218763Y - Push-pull force testing device - Google Patents
Push-pull force testing device Download PDFInfo
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- CN201218763Y CN201218763Y CNU2008200944821U CN200820094482U CN201218763Y CN 201218763 Y CN201218763 Y CN 201218763Y CN U2008200944821 U CNU2008200944821 U CN U2008200944821U CN 200820094482 U CN200820094482 U CN 200820094482U CN 201218763 Y CN201218763 Y CN 201218763Y
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Abstract
A push-pull effort testing device mainly comprises: a load device connected with the to-be-tested object for measuring the push-pull effort bore by the to-be-tested object; the load device is equipped with a driving and transmission device for driving the load device to do reciprocating movement; one side of the driving and transmission device is equipped with a locating device for locating the main body of the to-be-tested object, and a controlling system for controlling the driving and transmission device and the load device work. The push-pull effort testing device in the utility model is able to exactly simulate the working condition of push-pull effort of the to-be-tested object when using, having high reliability and simple structure and is ale to satisfy the demand of reliability testing.
Description
Technical field
The utility model relates to a kind of proving installation, relates in particular to a kind of device for testing push-pull force.
Background technology
At present, general push-and-pull article usually need its reliability is tested.For example: slide phone usually needs its push-and-pull member is carried out reliability testing.And the reliability testing of slide phone is fixed on the slide phone body on the test table often, afterwards, pass through the to-and-fro movement of 2 cylinders at the two ends of slide phone, promote the slip lid of slide phone, its relative mobile phone body is slided, be damaged until mobile phone, note the number of times that slip lid slides, finish reliability testing.Yet this proving installation test speed is slow, efficient is low, and, be difficult to set flexibly stroke, push-and-pull strength and the speed that slip lid slides; Simultaneously, also can't test the ability to bear of slip lid.
In China's utility model patent prospectus publication number " CN200982934 " name be called " loading-displacement curve test machine " patent disclosure a kind of loading-displacement curve test machine, peak dot and valley point when its pressure that is used to test silica gel push-button or other buttons and shell fragment is gone journey and resilience journey, and go out its feel by COMPUTER CALCULATION.This loading-displacement curve test machine comprises workbench, ball-screw gear train, driving mechanism, tension-compression sensor, displacement transducer, position-limit mechanism, casing, sliding seat of placing measured workpiece and the control module that is electrically connected with computing machine.Wherein, ball is positioned at sliding seat, and tension-compression sensor is fixedlyed connected with sliding seat, displacement transducer and the coaxial fixed installation of leading screw.Driving mechanism is made up of stepper motor and belt pulley, and its driving wheel pivots with stepper motor and is connected, and its engaged wheel pivots with leading screw and is connected, and ratio of gear is 2: 1.Leading screw and position-limit mechanism are fixedly mounted on the casing with the workbench one.Control module is made up of scrambler and driver.Yet this test machine measuring accuracy is lower, and cost is higher, and during test, measured workpiece is shifted easily, and the stressing conditions of measured workpiece push-pull effort influences test result in the time of can't simulating actual use well.
The utility model content
The technical problems to be solved in the utility model provides a kind of reliability height, the device for testing push-pull force of the stressing conditions of measured workpiece push-pull effort in the time of accurately simulating actual use.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of device for testing push-pull force, mainly comprise: the loading device that is connected, is used to measure the push-pull effort that object to be tested bears with object to be tested, described loading device place is provided with and drives driving and the gearing that described loading device moves reciprocatingly, one side of described driving and gearing is provided with and is used to treat the locating device that the test article body positions, and the control system that is used to control described driving and gearing and the work of loading device.
Above-mentioned device for testing push-pull force, wherein: described locating device comprises the adjusting platform that is used to carry object to be tested, and is arranged at the adjustable clamp that is used for clamping object body to be tested on the described adjusting platform.
Above-mentioned device for testing push-pull force, wherein: described adjustable clamp comprises being arranged at and is used to treat the test article body on the described adjusting platform and carries out spacing limited block, described limited block is provided with threaded hole, and with the adjusting bolt of described threaded hole threaded engagement.
Above-mentioned device for testing push-pull force, wherein: be provided with the regulating device that is used to regulate the platform high and low position in described locating device and described driving and the non-conterminous side of gearing; Adopt the structure of regulating device, have and utilize the high and low position of regulating object to be tested.
Above-mentioned device for testing push-pull force, wherein: described regulating device comprises support, be connected, be used to drive the slide block that its lifting is slided with described adjusting platform, and be connected with described slide block, be used for this slide block is locked at lock-screw on the support, this support is provided with chute that slides therein for this slide block and the regulating tank that is used to hold this lock-screw.
Above-mentioned device for testing push-pull force, wherein: described regulating device also comprises the set screw that is connected, is used to regulate described slide block height with described slide block, be spirally connected, be used to support a piece of described set screw with described support, and with described set screw clamping, be used for this set screw is fixed on pressing plate on the slide block, also be provided with the short slot that is spirally connected for this piece on the described support.
Above-mentioned device for testing push-pull force, wherein: described set screw bottom is provided with groove, and described pressing plate is provided with and is used to the U type draw-in groove that card is established this groove; Adopt the structure of draw-in groove, when utilizing set screw to screw out, drive the rising of slide block and adjusting platform, and then regulate the height of object to be tested.
Above-mentioned device for testing push-pull force, wherein: described driving and gearing comprise the servomotor that is used to provide power, be arranged at the shaft coupling of described servomotor output shaft, be connected, be used for the gyration of servomotor is converted into straight-line ball screw with this servomotor output shaft by this shaft coupling.
Above-mentioned device for testing push-pull force, wherein: described ball screw comprises screw mandrel and the nut that matches with described screw mandrel; Described loading device and described nut are affixed; Described driving and gearing also comprise base, and an end of described base is provided with and is used to support the free-ended supporting seat of described screw mandrel, and the other end of described base is provided with the end seat that is used to hold described shaft coupling, and with this end seat flange connecting dish; Described servomotor passes ring flange and end seat, and links to each other by shaft coupling and screw mandrel are coaxial; Described base is provided with and is used to prevent that dust from falling into the sheath of this screw mandrel.
Above-mentioned device for testing push-pull force, wherein: described loading device comprises: be connected with the push-and-pull member of object to be tested, be used to regulate it contacts distance with the push-and-pull member of object to be tested adjusting screw(rod), be connected with described adjusting screw(rod), be used to measure the load sensor of the push-pull effort that object to be tested bears, be used to hold the shell of this load sensor, be provided with in the described shell and be used to the inside groove that card is established this load sensor, described adjusting screw(rod) upper sleeve through is useful on the set nut of this adjusting screw(rod) of locking and load sensor one end, and described shell is outside equipped with the tie down screw of the locking load sensor other end and shell.
Above-mentioned device for testing push-pull force, wherein: described device for testing push-pull force also comprises and is used for described loading device is carried out spacing stop, and described stop comprises spacing the piece that is used for fixing and is arranged on described spacing the piece, is electrically connected, is used for spacing limit switch with described control system; Adopt the structure of limit switch, effectively protect the loading device to avoid impacting.
Device for testing push-pull force of the present utility model, treating the test article body by locating device effectively locatees, and, by loading device, driving and gearing and control system, the stressing conditions of the push-pull effort of object to be tested in the time of accurately simulating actual use, the reliability height, and, simple in structure, can satisfy the demand of reliability testing.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the perspective view of the utility model device for testing push-pull force;
Fig. 2 is the solid blast structural representation of loading device among Fig. 1;
Fig. 3 is the solid blast structural representation that drives among Fig. 1 with gearing;
Fig. 4 is the solid blast structural representation of locating device and regulating device among Fig. 1;
Fig. 5 is the perspective view of driving of the present utility model and gearing, loading device and stop.
Embodiment
Figure 1 shows that the perspective view of the utility model device for testing push-pull force.Device for testing push-pull force comprises worktable 10, be connected with object to be tested, be used to measure the loading device 20 of the push-pull effort that object to be tested bears, loading device 20 places are provided with and drive driving and the gearing 30 that loading device 10 moves reciprocatingly, one side of driving and gearing 30 is provided with and is used to treat the locating device 40 that the test article body positions, be provided with regulating device 50 in locating device 40 and driving and gearing 30 non-conterminous sides, be used for loading device 20 is carried out spacing stop 60, and the control system 70 that is used for controlling and driving and gearing 30 and 20 work of loading device.In the present embodiment, locating device 40, driving and gearing 30, regulating device 50 and stop 60 all are arranged on the worktable 10.Object to be tested is the slide phone (not shown), and it comprises mobile phone body and slip lid.
In the present embodiment, be provided with control program PLC able to programme in the control system 70, this control system also can be used known other control system with programmable functions instead certainly, as: industrial computer, single-chip microcomputer, microcomputer or the like repeat no more here.
Figure 2 shows that the solid blast structural representation of loading device 20 among Fig. 1.Loading device 20 comprises with the push-and-pull member of object to be tested and being connected, is used to regulate it contacts distance with the push-and-pull member of object to be tested adjusting screw(rod) 21, be connected, be used to measure the load sensor 22 of the push-pull effort that object to be tested bears with adjusting screw(rod) 21, be used to hold the shell 23 of this load sensor 22, adjusting screw(rod) 21 upper sleeve throughs are useful on the set nut 24 of this adjusting screw(rod) 21 of locking and load sensor 22 1 ends, are arranged to be used to lock the tie down screw 25 of load sensor 22 other ends and shell 23 and the cushion block 26 of load-carrying covering 23 outside the shell 23.In the present embodiment, adjusting screw(rod) 21 is threaded with the push-and-pull member of object to be tested, in the embodiment, is to be threaded with the slip lid of slide phone.The shape of cross section of load sensor 22 is " S " type.
In other embodiment of the utility model, adjusting screw(rod) 21 also can be connected with the push-and-pull member of object to be tested by adaptor, certainly, this adjusting screw(rod) 21 also can omit, drive the push-and-pull component movement that can drive object to be tested with gearing 30 as long as satisfy, and the weight bearing power that load sensor 22 can detect object to be tested gets final product.
Figure 3 shows that the solid blast structural representation that drives among Fig. 1 with gearing 30.Drive with gearing 30 and comprise the servomotor 31 that is used to provide power, be arranged at the shaft coupling 32 of servomotor 31 output shafts, and be connected with these servomotor 31 output shafts, be used for the gyration of servomotor 31 is converted into straight-line ball screw (figure does not indicate) by this shaft coupling 32.Wherein, ball screw comprises screw mandrel 33 and the nut 34 that matches with this screw mandrel.Say in detail, the outside surface of screw mandrel 33 is provided with the ball thread groove, the inside surface of nut 34 is provided with the ball thread groove relative with the ball thread groove of screw mandrel 33, be provided with a plurality of ball (not shown)s between the ball thread groove of screw mandrel 33 and the ball thread groove of nut, therefore, nut 34 is done linear reciprocating motion along screw mandrel 33 under the effect of servomotor 31.Adopt servomotor 31 directly to drive the structure of ball screw, improve measuring accuracy.
In the present embodiment, driving also comprises base 35 with gearing 30, and an end of base 35 is provided with and is used for support screw 33 free-ended supporting seats 36; The other end of base 35 is provided with the end seat 37 that is used to hold shaft coupling 32, and with these end seat 37 flange connecting dishes 38.This servomotor 31 passes ring flange 38 and end seat 37, and by shaft coupling 32 and 33 coaxial linking to each other of screw mandrel, guarantees that screw mandrel 33 and servomotor 31 on same axis, improve measuring accuracy.In addition, also be provided with on the base 35 and be used to prevent that dust from falling into the sheath 39 of this screw mandrel 33.In the embodiment, sheath 39 is a retractable guard, and its quantity is a pair of, is arranged at the both sides of nut 34 respectively.
In the embodiment, end seat 37 is provided with " U " type groove 371, and shaft coupling 32 snaps in this U type groove 371.And end seat 37 is flanged end seat.Flanged end seat one end is bolted in the other end of base 35 by the socket head cap screw (not shown), and the other end of flanged end seat is spirally connected by socket head cap screw (not shown) and ring flange 38.
Therefore, the forward or reverse of servomotor 31 drives the forward or reverse of screw mandrel 33, do back and forth movement thereby promote nut 34, and loading device 20 is affixed with nut 34, that is, the loading device is fixed on the nut 34 of driving and gearing 30 by cushion block 26.Therefore, the to-and-fro movement of nut 34 will drive the to-and-fro movement of loading device 20.
Figure 4 shows that the solid blast structural representation of locating device 40 among Fig. 1 and regulating device 50.Locating device 40 comprises and is used for carrying the adjusting platform 41 of object to be tested and is arranged at regulating the adjustable clamp (figure does not indicate) that is used for clamping object body to be tested on the platform 41.Wherein, adjustable clamp comprises being arranged to regulate and is used to treat the test article body on the platform 41 and carries out spacing limited block 42 that limited block 42 is provided with threaded hole (indicating among the figure), and with the adjusting bolt 43 of threaded hole threaded engagement.In the present embodiment, regulate also be furnished with on the platform 41 be used for fixing limited block 42 threaded hole 410.In the embodiment, the quantity of threaded hole 410 is 64, is evenly arranged in to regulate on the platform 41.The quantity of limited block 42 is 4, is separately positioned on the both sides of regulating platform 41.The position of object to be tested can be realized in the position of threaded hole 410 by regulating limited block 42.Again, the quantity of the threaded hole that is provided with on each limited block 42 is 2, and in other words, each limited block 42 is provided with 2 and regulates bolt 43.In the present embodiment, the mobile phone body (not shown) of slide phone is to come clamping by the adjusting bolt 43 on the limited block 42 that is arranged on the body both sides.
In other embodiment of the utility model, locating device 40 also can directly adopt anchor clamps such as mechanical arm to realize the location, as long as satisfy in test process, can to the mobile phone body of slide phone carry out effective positioning instant can, repeat no more here.
In the present embodiment, a side of locating device 40 is provided with and drives and gearing 30, and its opposite side is provided with the regulating device 50 that is used to regulate platform 41 high and low positions.
In other embodiment of the utility model, regulating device 50 also can walk abreast with locating device 40 and arrange, repeats no more here.
Regulating device 50 comprises support 51, be connected, be used to drive the slide block 52 that its lifting is slided with adjusting platform 41, be connected with slide block 52, be used for this slide block 52 is locked at lock-screw 53 on the support, be connected, be used for adjusting slider 52 set screw 54 highly with slide block 52, be spirally connected, be used to support a piece 55 of set screw 54 with support 51, and with set screw 54 clampings, be used for this set screw 54 is fixed on pressing plate 56 on the slide block 52.Wherein, support 51 is provided with the chute 511 that slides therein for this slide block 52, the short slot 513 that is used to hold the regulating tank 512 of this lock-screw 53 and is used for being spirally connected for a piece 55.In the present embodiment, the quantity of chute 511 is 2, and the quantity of regulating tank 512 is 1, and the quantity of short slot 513 is 1.This chute 511 and regulating tank 512 are arranged along support 51 short transverses (vertically).Short slot 513 is along the lateral arrangement of support 51.
Slide block 52 is provided with two ribs 521, and this slide block 52 snaps in the chute 511 by rib 521, by lock-screw 53 slide block 52 is locked on the support 51, and slide block 52 and support 51 are closely cooperated.In the present embodiment, regulating platform 41 is to be screwed onto on the slide block 52 by the socket head cap screw (not shown).That is, the elevating movement of slide block 52 will drive and regulate platform 41 and move up and down.Again, piece 55 is provided with the threaded hole (indicating among the figure) that passes for set screw 54, and a piece 55 is screwed onto on the short slot 513 that support 51 offers by the socket head cap screw (not shown).Set screw 54 bottoms are provided with groove 541.Pressing plate 56 is provided with U type draw-in groove 561, is used to the groove 541 that card is established set screw 54, makes when set screw 54 screws out, and can drive the rising of slide block 52 and adjusting platform 41, and then regulates the height of object to be tested.
In other embodiment of the utility model, set screw 54, a piece 55 and pressing plate 56 also can omit, and the promptly direct position of adjusting slider 52 manually is locked with the position that regulates by lock-screw 53 then.Certainly, also can directly on support 51, draw-in groove be set, directly adjusting platform 41 be fastened in the draw-in groove, realize regulating, repeat no more here.
Figure 5 shows that the perspective view of driving of the present utility model and gearing 30, loading device 20 and stop 60.This stop 60 comprises spacing the piece 61 that is used for fixing and is arranged on the limit switch 62 that is electrically connected, is used for position-limiting action on spacing the piece 61, with control system.
In the present embodiment; limit switch 62 is near switch, and when the shell 23 of loading device 20 arrived predeterminable range near limit switch 62, limit switch 62 transmitted control signals and gives control system; control system control servomotor 31 decommissions, and effectively protects loading device 20 to avoid impacting.In the embodiment, the quantity of stop 60 is 2, is arranged at the two ends that drive with gearing 30 respectively.
In the utility model, treat test article institute externally applied forces (thrust or pulling force) and be by servomotor 31 drive produce, and object to be tested stressed size be by load sensor 22 detect obtain.And the speed degree of distance, the drive object motion to be tested of driving and gearing 30 push-and-pulls object motion to be tested, the velocity magnitude when coming and going, the cycle index of leapfrog test etc. all can be controlled by control system.
During test, at first in control system 70, set test parameter: for example: the stroke of motion, the speed of push-and-pull, cycle index etc., then the mobile phone body of slip mobile phone is placed on the adjusting platform 41 of locating device 40, by the adjusting bolt on the limited block 42 43 mobile phone body is gripped, simultaneously, regulate the height and position of slip mobile phones by regulating device 50, the adjusting screw(rod) 21 of loading device 20 reliably is spirally connected with slip lid after, begin test.Wherein, the control of 70 pairs of servomotors 31 of control system is the driving functions by motion control card, the stroke of motion is converted into servomotor 31 required umber of pulses realize.After the end of test (EOT), control system is handled the dfisplacement pulse that collects, the voltage signal information such as (load sensor 22 is subjected to different power can produce different voltage) of load sensor 22, the stressing conditions of the push-pull effort of object to be tested when simulating actual use, the reliability height, and, simple in structure, can satisfy the demand of reliability testing.
In addition, the utility model also can be applied in the tension and compression Road test of industries such as rubber plastic, industry light industry textile industry, building materials, compound substance, electric wire, auto parts machinery, power machine, scientific research institution, the pulling capacity test, the test of failure test test and other terms of mechanics, as stretching, compression, the bending of multiple materials such as: metal, nonmetal, building materials, test such as peel off, directly tear, measure tensile strength of material, length growth rate, top and bottom yield point, multiple test such as elastic modulus.
The embodiment of the above is a better embodiment of the present utility model; be not to limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence that all shapes according to the utility model, structure are done changes and all comprises in the protection domain of the present utility model.
Claims (11)
1. device for testing push-pull force, mainly comprise: the loading device that is connected, is used to measure the push-pull effort that object to be tested bears with object to be tested, it is characterized in that: described loading device place is provided with and drives driving and the gearing that described loading device moves reciprocatingly, one side of described driving and gearing is provided with and is used to treat the locating device that the test article body positions, and the control system that is used to control described driving and gearing and the work of loading device.
2. device for testing push-pull force according to claim 1 is characterized in that: described locating device comprises the adjusting platform that is used to carry object to be tested, and is arranged at the adjustable clamp that is used for clamping object body to be tested on the described adjusting platform.
3. device for testing push-pull force according to claim 2, it is characterized in that: described adjustable clamp comprises being arranged at and is used to treat the test article body on the described adjusting platform and carries out spacing limited block, described limited block is provided with threaded hole, and with the adjusting bolt of described threaded hole threaded engagement.
4. device for testing push-pull force according to claim 2 is characterized in that: be provided with the regulating device that is used to regulate the platform high and low position in described locating device and described driving and the non-conterminous side of gearing.
5. device for testing push-pull force according to claim 4, it is characterized in that: described regulating device comprises support, be connected, be used to drive the slide block that its lifting is slided with described adjusting platform, and be connected with described slide block, be used for this slide block is locked at lock-screw on the support, this support is provided with chute that slides therein for this slide block and the regulating tank that is used to hold this lock-screw.
6. device for testing push-pull force according to claim 5, it is characterized in that: described regulating device also comprises the set screw that is connected, is used to regulate described slide block height with described slide block, be spirally connected, be used to support a piece of described set screw with described support, and with described set screw clamping, be used for this set screw is fixed on pressing plate on the slide block, also be provided with the short slot that is spirally connected for this piece on the described support.
7. device for testing push-pull force according to claim 6 is characterized in that: described set screw bottom is provided with groove, and described pressing plate is provided with and is used to the U type draw-in groove that card is established this groove.
8. according to any described device for testing push-pull force of claim 1 to 7, it is characterized in that: described driving and gearing comprise the servomotor that is used to provide power, be arranged at the shaft coupling of described servomotor output shaft, be connected, be used for the gyration of servomotor is converted into straight-line ball screw with this servomotor output shaft by this shaft coupling.
9. device for testing push-pull force according to claim 8 is characterized in that: described ball screw comprises screw mandrel and the nut that matches with described screw mandrel; Described loading device and described nut are affixed; Described driving and gearing also comprise base, and an end of described base is provided with and is used to support the free-ended supporting seat of described screw mandrel, and the other end of described base is provided with the end seat that is used to hold described shaft coupling, and with this end seat flange connecting dish; Described servomotor passes ring flange and end seat, and links to each other by shaft coupling and screw mandrel are coaxial; Described base is provided with and is used to prevent that dust from falling into the sheath of this screw mandrel.
10. according to any described device for testing push-pull force of claim 1 to 7, it is characterized in that: described loading device comprises: be connected with the push-and-pull member of object to be tested, be used to regulate it contacts distance with the push-and-pull member of object to be tested adjusting screw(rod), be connected with described adjusting screw(rod), be used to measure the load sensor of the push-pull effort that object to be tested bears, be used to hold the shell of this load sensor, be provided with in the described shell and be used to the inside groove that card is established this load sensor, described adjusting screw(rod) upper sleeve through is useful on the set nut of this adjusting screw(rod) of locking and load sensor one end, and described shell is outside equipped with the tie down screw of the locking load sensor other end and shell.
11. according to any described device for testing push-pull force of claim 1 to 7, it is characterized in that: described device for testing push-pull force also comprises and is used for described loading device is carried out spacing stop, and described stop comprises spacing the piece that is used for fixing and is arranged on described spacing the piece, is electrically connected, is used for spacing limit switch with described control system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200944821U CN201218763Y (en) | 2008-05-16 | 2008-05-16 | Push-pull force testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200944821U CN201218763Y (en) | 2008-05-16 | 2008-05-16 | Push-pull force testing device |
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| CN201218763Y true CN201218763Y (en) | 2009-04-08 |
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-
2008
- 2008-05-16 CN CNU2008200944821U patent/CN201218763Y/en not_active Expired - Fee Related
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