CN103217643B - Button testing device and key test system - Google Patents

Button testing device and key test system Download PDF

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Publication number
CN103217643B
CN103217643B CN201210015413.8A CN201210015413A CN103217643B CN 103217643 B CN103217643 B CN 103217643B CN 201210015413 A CN201210015413 A CN 201210015413A CN 103217643 B CN103217643 B CN 103217643B
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CN
China
Prior art keywords
button
load
measured
pressing piece
bar
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CN201210015413.8A
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Chinese (zh)
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CN103217643A (en
Inventor
赖贵城
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深圳安格仪器有限公司
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Priority to CN201210015413.8A priority Critical patent/CN103217643B/en
Publication of CN103217643A publication Critical patent/CN103217643A/en
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Publication of CN103217643B publication Critical patent/CN103217643B/en

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Abstract

The present invention relates to a kind of button testing device and key test system.This button testing device comprises: pressing piece, for pressing button to be measured; Load part, is connected movably with this pressing piece; First bolster, is located between this pressing piece and this load part; First drive unit, is connected with this load part, moves towards close or away from button to be measured direction for driving this load part; And checkout equipment, for the displacement of measuring pressing piece and the dynamics be applied on button to be measured.Above-mentioned button testing device has the higher advantage of measuring accuracy.

Description

Button testing device and key test system
[technical field]
The present invention relates to a kind of electronic product testing apparatus, particularly relate to a kind of button testing device and the key test system that are applicable to carry out the keyswitch of electronic product test automatically.
[background technology]
Each electronic product, plant equipment use various forms of button in a large number, and prior art normally adopts artificial or mechanical mode to the performance of button and life test.Wherein, artificial mode also exists that testing efficiency is low, test dynamics is lack of standardization, do not have the shortcomings such as strict testing standard.
" Weight gravity tester " that the Chinese invention patent 200610062967.8 of our company applicant earlier application is announced is exactly that one can replace the test of original staff, overcomes the defect that staff test keyswitch conducting degree varies and the dynamics that presses down differ.The device crossing sensitivity and overweight pressing degree of keyswitch can be measured exactly." Weight gravity tester " should comprise an axostylus axostyle, the end of axostylus axostyle is at least provided with one group of counterweight that can move axially in limited range, and axostylus axostyle is furnished with one can control its driving mechanism moved axially and back-moving spring; Axostylus axostyle is also provided with for it at mount pad fixing on plate of moving playing surface.Utilize driving mechanism to the control of counterweight, the counterweight of setting weight is applied on tested keyswitch, the pressing force of button is tested.If when relying on downward certain distance, keyswitch conducting, then illustrating that tested button was considered as sensitive, is substandard product.If rely on counterweight weight can not impel keyswitch conducting, then illustrate that tested button is substandard product.There is the advantages such as test speed is fast, test exact specification.But in actual applications, find that the Weight gravity tester of said structure remains in following defect: 1. cannot emulate staff and the paragraph of button is felt, 2. counterweight decline rate is fast, without buffering, during as used two counterweights, superpose in hard land mode due between upper, the second counterweight, namely the first counterweight is superimposed upon on the second counterweight in freely falling body mode, and its decline rate is too fast, and the stroke of button is very short, and cause testing paragraph sense, therefore can affect the accuracy of test.
[summary of the invention]
Based on this, be necessary to provide button testing device and key test system that a kind of test accuracy is higher.
A kind of button testing device, comprising:
Pressing piece, for pressing button to be measured;
Load part, is connected movably with this pressing piece;
First bolster, is located between this pressing piece and this load part.
In a preferred embodiment, also comprise:
First drive unit, is connected with this load part, moves towards close or away from button to be measured direction for driving this load part;
Second drive unit, moves towards close or away from this pressing piece direction for driving button to be measured; And
Checkout equipment, for the displacement of measuring pressing piece and the dynamics be applied on button to be measured.
In a preferred embodiment, this checkout equipment comprises the Systems for optical inspection of the displacement for measuring pressing piece, and this Systems for optical inspection comprises the optical scale and the photoelectric sensor corresponding with this optical scale that are installed on this pressing piece.
In a preferred embodiment, the inside of this load part offers host cavity, the bottom of this load part also offers the through hole being communicated with this host cavity, surrounding's formation that this load part is positioned at this through hole compresses seat, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, the width of this press section is less than the width in this bar portion, this bar portion activity is contained in this host cavity, this press section is arranged in this through hole, this the first bolster one end and this compress seat and offset, the end face in the other end and this bar portion offsets, this button testing device also comprises the second bolster be located between this top, bar portion and top of this host cavity.
A kind of key test system, comprise multiple above-mentioned button testing device, for testing multiple button to be measured simultaneously, each button to be measured comprises top electrode and bottom electrode, the top electrode of multiple button to be measured is interconnected, or the bottom electrode of multiple button to be measured is interconnected.
In a preferred embodiment, also comprise control module, the plurality of button to be measured is divided into multiple region, and this control module controls this first drive unit and the second drive unit detects separately each region.
A kind of button testing device, comprising:
Pressing piece, for pressing button to be measured, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, and this bar portion is provided with the tray at multiple interval;
Support, comprises multiple back up pad of be arrangeding in parallel and the support column between adjacent two back up pads, each back up pad offers the through hole allowing this tray to pass;
Multiple load part, each load part is placed in a back up pad, each load part offers and allows this bar portion pass but stop the via hole that this tray passes, and the distance between adjacent two load parts is greater than the distance between adjacent two trays;
First drive unit, is connected with this support, moves towards close or away from button to be measured direction for driving this bar portion;
Second bolster, is located at one between tray and support;
Multiple touch switch, each touch switch is located in a back up pad, and can trigger by the pressure of this load part; And
Checkout equipment, is connected with button to be measured with the plurality of touch switch, for measuring the displacement of pressing piece and receiving the signal that the plurality of touch switch sends.
In a preferred embodiment, also comprise multiple first bolster, each first bolster is located between a tray and a load part; Or each first bolster is located between a back up pad and a load part.
A kind of button testing device, comprising:
Pressing piece, for pressing button to be measured, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, and this bar portion is provided with the tray at multiple interval;
Support, comprises the back up pad of multiple parallel placement and the support column between adjacent two back up pads, each back up pad offers the through hole allowing this tray to pass, and the distance between adjacent two back up pads is greater than the distance between adjacent two trays;
Multiple load part, each load part is placed in a back up pad, each load part offers and allows this bar portion pass but stop the via hole that this tray passes;
Second bolster, is located at one between tray and support;
First drive unit, is fixed on support, and is connected with this bar portion, moves towards close or away from button to be measured direction for driving this press section;
Checkout equipment, button to be measured is connected, this checkout equipment comprises the Systems for optical inspection of the displacement for measuring pressing piece, and this Systems for optical inspection comprises the optical scale that is installed on this bar portion and is arranged on photoelectric sensor on this support and corresponding with this optical scale.
In a preferred embodiment, also comprise damping piece, be located on this pressing piece or this load part.
Bolster, damping piece, can be upper or lower one-way buffer, can be bidirectional buffering, material, shape, buffer size be regardless of.
First bolster of above-mentioned button testing device can allow the weight of load part slowly be loaded on pressing piece, effect is equivalent to load part to be divided into much small unit weight, each subsection weight is incremental manner, be superimposed upon step by step on pressing piece, the actual conditions relatively during staff pressing.In addition, load part loads and the speed of unloading slows down, and is conducive to pick-up unit and adopts plenty of time read test value, add the degree of accuracy of measurement.
[accompanying drawing explanation]
By the more specifically explanation of the preferred embodiments of the present invention shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will become more clear.Reference numeral identical in whole accompanying drawing indicates identical part, and does not deliberately draw accompanying drawing by physical size equal proportion convergent-divergent, focuses on purport of the present invention is shown.
Fig. 1 a is the structural representation of the button testing device of embodiment one;
Fig. 1 b is the structural representation that the button testing device of embodiment one adds Systems for optical inspection;
Fig. 1 c is the structural representation that the button testing device of embodiment one adds damping piece;
Fig. 2 is the test curve figure of the button testing device of embodiment one;
Fig. 3 a, Fig. 3 b are the structural representation of the button testing device of embodiment two;
Fig. 3 c is the structural representation that the button testing device of embodiment two adds Systems for optical inspection;
Fig. 3 d is the structural representation that the button testing device of embodiment two adds damping piece;
Fig. 4 a, Fig. 4 b are the structural representation of the button testing device of embodiment three;
Fig. 4 c is the structural representation that the button testing device of embodiment three adds Systems for optical inspection;
Fig. 4 d is the structural representation that the button testing device of embodiment three adds damping piece;
Fig. 5 a, Fig. 5 b are the structural representation of the button testing device of embodiment four;
Fig. 5 c is the structural representation that the button testing device of embodiment four adds Systems for optical inspection;
Fig. 5 d is the structural representation that the button testing device of embodiment four adds damping piece;
Fig. 6 a, Fig. 6 b are the structural representation of the button testing device of embodiment five;
Fig. 6 c is the structural representation that the button testing device of embodiment five adds Systems for optical inspection;
Fig. 6 d is the structural representation that the button testing device of embodiment five adds damping piece;
Fig. 7 a, Fig. 7 b are the structural representation of the key test system of embodiment one;
Schematic perspective view when Fig. 7 c is the key test system test subregion button of embodiment one;
Fig. 7 d is the floor map of circuit board in Fig. 7 c;
Fig. 8 a, Fig. 8 b are the structural representation of the key test system of embodiment two;
Fig. 9 is the structural representation of the button testing device of embodiment six;
Figure 10 is the test curve figure of the button testing device of embodiment six;
Figure 10 a ~ Figure 10 f is the view in the button testing device use procedure of embodiment six;
Test curve figure when Figure 11 is the button testing device test key press of embodiment six;
Test curve figure when Figure 12 is the button testing device test button resilience of embodiment six;
Figure 13 is the structural representation of the button testing device of embodiment seven;
Figure 14 is the test curve figure of the button testing device of embodiment seven;
Figure 15 a is the structural representation of the button testing device of embodiment eight;
Figure 15 b is the structural representation of the button testing device of another embodiment;
Figure 15 c is the structural representation of the button testing device of another embodiment;
Figure 15 d is the structural representation of the button testing device of another embodiment;
Figure 15 e is the structural representation of the button testing device of another embodiment;
Figure 15 f is the structural representation of the button testing device of another embodiment;
Figure 15 g is the structural representation of the button testing device of another embodiment;
Figure 16 is the structural representation of the button testing device of embodiment nine;
Figure 17 is the structural representation of the key test system of embodiment three;
Figure 18 a ~ Figure 18 f is the view in the key test system use procedure of embodiment three;
Figure 19 is the structural representation of the key test system of embodiment four;
Figure 20 is the structural representation of the key test system of embodiment five.
[embodiment]
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Secondly, the present invention utilizes schematic diagram to be described in detail, when describing the embodiment of the present invention in detail; for ease of explanation; represent that the sectional view of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
Refer to Fig. 1 a, the button testing device of embodiment one mainly spends and detects button 9 to be measured, and it comprises pressing piece 8, load part 6, first bolster 7, first drive unit 51, second drive unit 52 and checkout equipment 55.
Be connected movably by the first bolster 7 between pressing piece 8 and load part 6.In the present embodiment, pressing piece 8 comprises the conical press section 83 being roughly cylinder body rod portion 81 and being positioned at one end, bar portion 81.The diameter in bar portion 81 is less than the diameter of press section 83.Be appreciated that the material of pressing piece 8, size, shape can not by the restrictions of the present embodiment.
Load part 6 offers the strip axis hole 61 in collecting bar portion 81 of sliding.Be appreciated that the material of load part 6, size, shape can not by the restrictions of the present embodiment.
For being sheathed on the spring in bar portion 81 in first bolster 7 the present embodiment.The two ends of the first bolster 7 respectively with being welded and fixed of press section 83 and load part 6.Thus, pressing piece 8 can slidably reciprocate by load part 6 in the vertical direction relatively.Be appreciated that the first bolster 7 also can be other and has elasticity, the material that can cushion, such as shell fragment, rubber blanket etc.The two ends of the first bolster 7 also can not be welded with press section 83 and load part 6.
First drive unit 51 is connected with load part 6, moves towards close or away from button 9 to be measured direction for driving load part 6.First drive unit 51 for impelling lower shaft on load part 6 to move or move according to designing requirement Y-axis or drive unit that either direction axle is dynamic, as steam-operating device, electric device, numerical-control motor etc.
In the present embodiment, the inside of load part 6 offers the cavity 63 communicated with axis hole 61.The top of load part 6 also offers the through hole 65 being communicated with this cavity 63.The diameter of through hole 65 is less than the width of cavity 63.First drive unit 51 comprises piston rod 511 and is positioned at the traction piece 513 of piston rod 511 end.Traction piece 513 is the cross bar that a width is greater than through hole 65.Piston rod 511 is arranged in through hole 65, and traction piece 513 activity is contained in cavity 63.When the first drive unit 51 drives piston rod 511 to move upward, the width due to traction piece 513 is greater than through hole 65, and therefore load part 6 can be followed piston rod 511 and moved upward together.But when the first drive unit 51 drives piston rod 511 to move downward, because traction piece 513 can be up and down in cavity 63, therefore load part 6 can not move downward with piston rod 511, and only can according to the gravity of self, moving down of free fall type.Be appreciated that, first drive unit 51 and the connected mode of load part 6 also can be not limited to the situation described by the present embodiment, demand fulfillment, when the first drive unit 51 drives load part 6 to move downward, does not additionally increase the strength be applied on load part 6.
Second drive unit 52 is fixedly linked with button 9 to be measured, moves towards close or away from pressing piece 8 direction for driving button 9 to be measured.Similar with the first drive unit 51, the second drive unit 52 is drive the drive unit that on button 9 to be measured, lower shaft moves or moves according to designing requirement Y-axis or either direction axle is dynamic, as: steam-operating device, electric device, numerical-control motor etc.
In the present embodiment, button 9 to be measured is made by there is elastically-deformable material.Top electrode 12 and bottom electrode 13 is provided with in button 9 to be measured.When there is elastic deformation under the pressure effect of button 9 to be measured at pressing piece 8, top electrode 12 contacts and conducting with bottom electrode 13.When external force removes, button 9 to be measured resilient again, now top electrode 12 is separated with bottom electrode 13 and disconnects.
Checkout equipment 55 is electrically connected with top electrode 12 and bottom electrode 13 respectively.Checkout equipment 55 can receive top electrode 12 and bottom electrode 13 and to contact the signal produced, thus judges whether button 9 to be measured is pressed conducting.Checkout equipment 55 also comprises the device of the displacement for measuring pressing piece 8 and measures the device of the dynamics be applied on button 9 to be measured.
In another embodiment, refer to Fig. 1 b, the device measuring displacement is Systems for optical inspection 56.The rule formula of photodetector system 56 is arranged on pressing piece 8, and the photoelectric sensor of photodetector system 56 is fixed on support, can maintain static, and also can move with the second drive unit 52.
First drive unit moves down, or when the second drive unit up moves, when the loading be added on pressing piece 8 is not enough to button 9 to be measured to press logical, photodetector system, the rule of 5 does not move equally relative to button to be measured.But rule and pressing piece 8 can move up and down along with the second drive unit 52.If at this moment photoelectric sensor maintains static, the position of rule will be detected at any time, when the weight of load part 6, little by little be added on pressing piece 8 to the resetting structure breaking through button 9 to be measured by driving, pressing piece 8 will be pressed logical along with dropping to button, photoelectric sensor like this, by detecting the tram of scale and arriving the time of tram, tells the quality of button 9 to be measured.If photoelectric sensor moves along with the second drive unit, photoelectric sensor only will can detect the direction that rule moves down, and differentiate the quality of button to be measured, this mode can save the cost of structure.
The device being applied to the dynamics on button 9 to be measured can be existing pressure transducer etc.
In another embodiment, refer to Fig. 1 c, pressing piece 8 can also be provided with a damping piece 57.The effect of damping piece 57 does not affect loading, speed when being and allowing pressing piece 8 rise, reducing speed during decline.Damping piece 57 can penetrate any position at pressing piece 8, also can be arranged on load part 6.
See also Fig. 2, the testing process of the present embodiment is as described below.
First the standard pressing displacement-force degree curve M and standard recovery displacement-force degree curve N that obtain normal button will be measured.
First drive unit 51 drives load part 6 and pressing piece 8 slowly to move downward, when pressing piece 8 press section 83 just contact measured button 9 time, the stroke of pressing piece 8 is denoted as 0.Second drive unit 52 drives button 9 to be measured and pressing piece 8 slowly to move upward afterwards, and now, the power be applied on button 9 to be measured also will increase gradually, and the first bolster 7 shrinks gradually from initial extended state.When being applied to the dynamics on button 9 to be measured and equaling the weight of pressing piece 8, the first bolster 7 recovers normal condition.Next, the first bolster 7 is compressed gradually, and the weight that the dynamics be applied on button 9 to be measured equals pressing piece 8 adds the weight of fractional load part 6.Continuation moves, when the first bolster 7 is compressed to the limit, the weight that the dynamics be applied on button 9 to be measured equals pressing piece 8 adds the weight of whole load part 6, and now the traction piece 513 of the first drive unit 51 is movable in the cavity 63 of load part 6, namely, even if the second drive unit 52 drives button 9 to be measured to move upward again, the dynamics be applied on button 9 to be measured also no longer continue increase, stabilize to pressing piece 8 and load part 6 weight and.Dynamics in whole pressing process and displacement corresponding relation are as shown in the curve M in Fig. 2.
Second drive unit 52 moves down afterwards, and the dynamics be applied on button 9 to be measured is reduced gradually, until be zero.Dynamics in rejuvenation and displacement corresponding relation are as shown in the curve N in Fig. 2.
On Fig. 2 upper curve M first indicates the maximum loading that point 1 is button 9 conducting; Second sign point 2 is after button 9 is pressed into the conducting of upper and lower electrode points 12,13, the minimum loading of button 9; It is after the conducting of upper and lower limit 12,13 that curve N the 3rd indicates point 3, when the external force be added on button 9 is removed, and the highest loading that button 9 resets; 4th sign point 4 is after the conducting of upper and lower electrode points 12,13, when the external force be added on button 9 is removed, and the minimum loading that button 9 resets; 5th indicates the range that point 5 is the conducting of button 9 upper and lower electrode points 12,13.
The effect of damping piece 67 be the current journey curve M of button pressure between 0-1 not by resistance, the collapse decline rate of reset material of the button 9 to be measured that slows down by certain resistance between M curve 1-2 is unidirectionally subject to resistance mode.
After determining standard pressing displacement-force degree curve M and standard recovery displacement-force degree curve N, just can measure reality product to be measured.
The pressing displacement-force that in Fig. 2, curve X and curve Y represents bad (feel is bad) product is respectively write music line and recover displacement-force and to write music line, and wherein 2a indicates the difference with 2, non-defective unit key, and 3 indicate the difference with 3, non-defective unit key.
The Main Function of the first bolster 7 of above-mentioned button testing device is: allow the weight of load part 6 be loaded on pressing piece 8 at leisure by the first bolster 7, effect is equivalent to load part 6 to be divided into much small unit weight, each subsection weight becomes incremental manner, be combined with the second drive unit 52 length by length, be superimposed upon on pressing piece 8 by the mode of variation stroke, the weight be added is allowed enough to impel button 9 compressive deformation to be measured, finally reach upper and lower electrode 12,13 connect conducting, this process relatively staff pressing time actual conditions.
Be understandable that, in above-mentioned measuring process, the sequence of movement between the first drive unit 51 and the second drive unit 52, can be that the first drive unit 51 first moves, dynamic after second drive unit 52, also can be that the second drive unit 52 first moves, dynamic after the first drive unit 51.
Be understandable that, in above-mentioned button testing device, the second drive unit 52 also can omit, and now the first drive unit 51 promotes load part 6 and pressing piece 8 moves downward.The bar portion 81 of pressing piece 8 and the axis hole 61 of load part 6 also can omit, and now, pressing piece 8 is connected by means of only the first bolster 7 with load part 6.Not crooked for guaranteeing in load part 6 and pressing piece 8 weight additive process, can when not affecting weight, both sides or the upper and lower suitable position of load part 6, pressing piece 8 increase spacing guiding mechanism.
Be understandable that, in above-mentioned button testing device, when reservation second drive unit 52 time, the first actuator 51 also can omit, and now the second drive unit 52 promotes button 9 to be measured and pressing piece 8 moves upward, and completes measurement.
Be understandable that, when the two ends of the first bolster 7 are not welded and fixed with load part 6 and pressing piece 8, in an initial condition, be the gravity of pressing piece 8 by the dynamics be pressed on button 9 to be measured.Now the design weight of pressing piece 8 is not enough to button 9 to be measured to press logical, but also will set constant weight, by too low for a position, 1 in curve M, presses official under county magistrate who administers lawsuit, etc. bad it.
Please refer to Fig. 3 a and Fig. 3 b, the button testing device of embodiment two is roughly the same with embodiment one, comprises pressing piece 32 (being equivalent to the pressing piece 8 of embodiment one), load part 31 (being equivalent to the load part 6 of embodiment one), the first bolster 33, first drive unit 51, second drive unit 52 and checkout equipment 55.
Roughly cylindrically, and inside offers the host cavity 311 of strip to load part 31.The bottom of load part 31 also offers the through hole 313 being communicated with this host cavity 311.The aperture of through hole 313 is less than the diameter of host cavity 311, therefore load part 31 be positioned at through hole 313 surrounding formed annular compress seat 315.
Pressing piece 32 comprises bar portion 321 and is positioned at the press section 323 of one end, bar portion 321.The width of press section 323 is less than the width in bar portion 321.The length in bar portion 321 is less than the length of host cavity 311, and therefore bar portion 321 can be contained in host cavity 311 in activity.323, press section is arranged in through hole 313.First bolster 33 one end with compress seat 315 and offset, the end face in the other end and bar portion 321 offsets.
In another embodiment, refer to Fig. 3 c, the device measuring displacement is Systems for optical inspection 56.The rule formula of photodetector system is arranged on pressing piece 8, and the photoelectric sensor of photodetector system is fixed on support, can maintain static, and also can move with the second drive unit 52.
In another embodiment, refer to Fig. 3 d, pressing piece 8 can also be provided with a damping piece 57.The effect of damping piece 57 does not affect loading, speed when being and allowing pressing piece 8 rise, reducing speed during decline.Damping piece 57 also can be arranged on load part 6.
The using method of the button testing device of embodiment two is roughly the same with embodiment one, and can be used for a button to be measured 9 as shown in Figure 1, button 9 to be measured has reset function, is provided with upper and lower electrode points 12,13 in it.When the button testing device of embodiment two is placed on button 9 to be measured, pressing piece 32 first touches button 9 to be measured, contact pressing piece 32 after load part 31, being equivalent to points two sections is applied on button 9 to be measured by weight, and the upper and lower electrode points 12,13 that the weight that load part 31 adds pressing piece 32 can make after button 9 to be measured compressive strain in it contacts conduction.
Concrete, the first drive unit 51 drives load part 31 and pressing piece 32 slowly to move downward, when pressing piece 32 press section 323 just contact measured button 9 time, the stroke of pressing piece 32 is denoted as 0.Second drive unit 52 drives button 9 to be measured and pressing piece 32 slowly to move upward afterwards, and now, the power be applied on button 9 to be measured also will increase gradually, and the first bolster 7 stretches gradually from initial contraction state.When being applied to the dynamics on button 9 to be measured and equaling the weight of pressing piece 32, the first bolster 7 recovers normal condition.Next, the bar portion 321 of pressing piece 32 starts to move upward in the host cavity 311 of load part 31, until the top in bar portion 321 contacts with the roof of host cavity 311, in the process, the dynamics be applied on button 9 to be measured equals the weight of pressing piece 32 all the time.Continuation moves, when load part 31 and pressing piece 32 move simultaneously, the weight that the dynamics be applied on button 9 to be measured equals pressing piece 32 adds the weight of whole load part 31, namely, even if the second drive unit 52 drives button 9 to be measured to move upward again, the dynamics be applied on button 9 to be measured also no longer continue increase, stabilize to pressing piece 32 and load part 31 weight and.
Because the first bolster 33 is placed between load part 31 and pressing piece 32, it can allow the weight of pressing piece 32 be applied on button 9 to be measured lentamente, and when external force removes from button 9 to be measured, the weight be superimposed upon on button 9 to be measured can be made to reduce lentamente.When removing external force, with the first known drive unit 51, load part 31 up can be carried above load part 31, also can be decline with the second known drive unit 52 is past below button 9 base to be measured, or two drive unit interactive actions, after load part 31 is separated with pressing piece 32, just only the weight of surplus pressing piece 32 is added on button 9 to be measured.Then, when load part 31 drives the first bolster 33 up to touch pressing piece 32, load part 31 continues up, when certain design runlength, first bolster 33 will contact pressing piece 32 and drive pressing piece 32 to start to leave button 9 to be measured, when leaving button 9 to be measured completely to pressing piece 32, the above-mentioned stroke just complete design by the first bolster 33 decides.If the elasticity coefficient of the first bolster 33 in this position is comparatively large, be namely not easy to be compressed, its will fast by pressing piece 32 weight from removal button 9 to be measured, stroke, time are shorter.If the elasticity coefficient of the first bolster 33 is less, namely easily compressed, by a slow speed by pressing piece 32 weight from removal button 9, stroke, time will be elongated.
The speed reduced due to weight slows down, pick-up unit is allowed to have comparatively plenty of time read test value, may be used for removing the time test of the weight being applied to stressed object, also may be used for the stroke test removing the weight being applied to stressed object, which substantially increases the degree of accuracy of measurement, as on Fig. 1 curve, the 5th indicates weight and the stroke that point 5 to the 4th indicates any point representative between point 4 to the 3rd sign point 3, can select to be used as standard testing.By comparison weight, reach for the purpose of resolution quality quality.
Please refer to Fig. 4 a and Fig. 4 b, the button testing device of embodiment three is roughly the same with embodiment two, comprise pressing piece 32, load part 31, first bolster 33, first drive unit 51, second drive unit 52 and checkout equipment 55, its difference is, the button testing device of embodiment three also comprises the second bolster 36 between top and the top of host cavity 311 being located at bar portion 321.
As previously mentioned, when the second drive unit 52 drives button 9 to be measured and pressing piece 32 slowly to move upward, the power be applied on button 9 to be measured also will increase gradually, and the first bolster 7 stretches gradually from initial contraction state.When being applied to the dynamics on button 9 to be measured and equaling the weight of pressing piece 32, the first bolster 7 recovers normal condition.Next, the bar portion 321 of pressing piece 32 starts to move upward in the host cavity 311 of load part 31, until the top in bar portion 321 contacts with the roof of host cavity 311, in the process, second bolster 36 is compressed gradually, and the weight that the dynamics be applied on button 9 to be measured equals pressing piece 32 adds the weight of fractional load part 31.Continuation moves, when load part 31 and pressing piece 32 move simultaneously, the weight that the dynamics be applied on button 9 to be measured equals pressing piece 32 adds the weight of whole load part 31, namely, even if the second drive unit 52 drives button 9 to be measured to move upward again, the dynamics be applied on button 9 to be measured also no longer continue increase, stabilize to pressing piece 32 and load part 31 weight and.
Because the first bolster 33 is placed between load part 31 and pressing piece 32, and the second bolster 36 is placed between the top in bar portion 321 and the top of host cavity 311, therefore the weight of pressing piece 32 and load part 31 can be allowed to be applied on button 9 to be measured lentamente, and when external force removes from button 9 to be measured, the weight be superimposed upon on button 9 to be measured can be made to reduce lentamente.In addition, exist while first bolster 33 and the second bolster 36, make to act on pressurized weight process on button 9 and buffering can be obtained from the process that button 9 removes weight, slow down, allowing button 9 to be measured can obtain enough, complete detection by time metering system or stroke measurment mode.
In another embodiment, refer to Fig. 4 c, the device measuring displacement is Systems for optical inspection 56.The rule formula of photodetector system is arranged on pressing piece 8, and the photoelectric sensor of photodetector system is fixed on support, can maintain static, and also can move with the second drive unit 52.
In another embodiment, refer to Fig. 4 d, pressing piece 8 can also be provided with a damping piece 57.The effect of damping piece 57 does not affect loading, speed when being and allowing pressing piece 8 rise, reducing speed during decline.Damping piece 57 also can be arranged on load part 6.
Please refer to Fig. 5 a and Fig. 5 b, the button testing device of embodiment four is roughly the same with embodiment two, comprise pressing piece 32, pressing piece 31, first bolster 33, first drive unit 51, second drive unit 52 and checkout equipment 55, its difference is, the top of pressing piece 31 also offers the guide hole 313 being communicated with host cavity 311.The top in bar portion 321 is also provided with the guide pillar 323 being actively located in guide hole 313.The width of guide hole 313 is less than the width of host cavity 321.Guide pillar 323 and guide hole 313 cooperatively interact, and to reduce friction force therebetween, and when can guarantee that the relative pressing piece 31 of pressing piece 32 slides up and down, activity is smooth and easy.
In another embodiment, refer to Fig. 5 c, the device measuring displacement is Systems for optical inspection 56.The rule formula of photodetector system is arranged on pressing piece 8, and the photoelectric sensor of photodetector system is fixed on support, can maintain static, and also can move with the second drive unit 52.
In another embodiment, refer to Fig. 5 d, pressing piece 8 can also be provided with a damping piece 57.The effect of damping piece 57 does not affect loading, speed when being and allowing pressing piece 8 rise, reducing speed during decline.Damping piece 57 also can be arranged on load part 6.
Please refer to Fig. 6 a and Fig. 6 b, the button testing device of embodiment five is roughly the same with embodiment four, comprise pressing piece 32, pressing piece 31, first bolster 33, first drive unit 51, second drive unit 52 and checkout equipment 55, its difference is, also comprises and being sheathed on guide pillar 323 and the second bolster 36 between top, bar portion 321 and the top of host cavity 341.The effect of the second bolster 36, test philosophy and effect are similar to the effect of the second bolster 36 of embodiment three.
In another embodiment, refer to Fig. 6 c, the device measuring displacement is Systems for optical inspection 56.The rule formula of photodetector system is arranged on pressing piece 8, and the photoelectric sensor of photodetector system is fixed on support, can maintain static, and also can move with the second drive unit 52.
In another embodiment, refer to Fig. 6 d, pressing piece 8 can also be provided with a damping piece 57.The effect of damping piece 57 does not affect loading, speed when being and allowing pressing piece 8 rise, reducing speed during decline.Damping piece 57 also can be arranged on load part 6.
See also Fig. 7 a and Fig. 7 b, the key test system of embodiment one comprises the button testing device of multiple connected embodiment three as shown in fig. 4 a, and it can be applicable to test the keyboard by some key combination.During test, all buttons on keyboard can be carried out subregion test.The method of subregion can be multiple, multiple key combination such as will be needed to become keyboard (as computer keyboard), when designing, the upper and lower electrode points 12,13 (comprising 131,132) of all buttons 9 can be divided up and down or left and right, height etc., with material isolates, be clearly divided into both sides.The key test system of the present embodiment also comprises control module, and this control module controls the first drive unit and the second drive unit detects separately each region.As shown in Figure 7a, two button testing devices A, B are had to be respectively used to the test (in order to give top priority to what is the most important, this figure eliminates drive unit) of two buttons 9A, 9B on keyboard in figure.The limit 12 that powers on of button 9A, 9B is with limit electrode and is designed to be connected together, to reach the matrix effect of minimum circuit.The bottom electrode point 131 and 132 of button 9A, 9B is the disjunct contact of non-same limit electrode, so representative is different key.
When button 9A, 9B are pressed down simultaneously, as shown in Figure 7b, the limit 12 that powers on of button 9A, 9B is with one side electrode, also represent and connect together, and how far the button that pipe electrode does not connect together is separated by, middle circuitous resistance size, as long as in design specification, the limit that powers on 12 can be connected with bottom electrode point 131 and 132 conducting simultaneously, because 2 bottom electrode points 131,132 are the bottom electrodes being contained in different key, the numerical value that two electrode points 131,132 read is just different, thus to tell button 9A, 9B be different key.Button 9A, 9B can press logical simultaneously and not interfere with each other and read value, reach the object of lifting test speed.Be appreciated that and also the bottom electrode of button 9A, 9B point 131,132 can be connected together, the electrode points that now opposite side is corresponding is separated, and also can reach same object.Number of keys in Fig. 7 a or 7b does not limit, and can be two, can be ten, can be 50, the same electrode of concrete how many buttons will be allowed to connect together and determine depending on deviser.A corresponding button testing device on each button, the button testing device in all same districts can control with the first drive unit 51 up, and depressed fast allows the simultaneously conducting of all buttons.The while of checkout equipment 55 energy, accurate each button of reading reads value, also can control with the first drive unit 51, the action simultaneously of leading depressed fast, then rise at a slow speed with the second drive unit 52 below button to be measured, test simultaneously, to reach maximum test effectiveness, when usually selecting, make no distinction of rank limit or limit, left and right etc., concentration degree can be selected high, quantity many while carry out subregion, that is can the fewer mode of subregion divide, speed can reach the fastest.
Fig. 7 c is the stereographic map of the key test system of an embodiment, and Fig. 7 d is key inside conducting wire enlarged diagram in Fig. 7 c.Describe due to convenient, remove the figure of the external forms such as key cap of key set in Fig. 7 c, directly indicate explanation with the conducting wire of key inside.
In Fig. 7 c, 101,102,103,104 and 105 is fixed support, and 108,109 is the first drive unit, and the present embodiment is for drive by electromagnet mode.107 is internal wiring.
Point upper circuit and line in Fig. 7 d, middle isolated with insulating material, form one and purchase by bond.The electrode designed is had in upper line.Checkout equipment 55 is connected with the route head of reaching the standard grade (No.-2, Line 1 road circuit) in Fig. 7 d and line the end of a thread (3-11 circuit).When the button testing device action driving upper circuit 1a position corresponding, when the weight of load part is enough, can by logical for the 4a pressure of upper circuit 1a and line opposite position, form loop, checkout equipment 55 reads signal through upper circuit Line 1 road line No. 4 circuits, represents that button to be measured is pressed logical.
Principle thus, upper circuit Line 1 road is designed with 1a, 1b, 1c, 1d and 1e five buttons simultaneously.During the button testing device selecting these 5 buttons corresponding action simultaneously, the electrode points (1a, 1b, 1c, 1d and 1e) of upper circuit will be distinguished corresponding line (4a, 3a, 5a, 6a and 7a) and press logical and can the be clear and definite signal telling each button simultaneously, can not interfere with each other, reach maximal efficiency.Same, circuit No. 2 circuits in another district, the electrode points (12a, 11a, 10a, 9a and 8a) of corresponding line respectively press logical and energy the is clear and definite signal telling each button by the electrode points (2a, 2b, 2c, 2d and 2e) of upper circuit simultaneously, can not interfere with each other, reach maximal efficiency.
See also Fig. 8 a and Fig. 8 b, the key test system of embodiment two comprises the button testing device of multiple connected embodiment five as shown in Figure 6 a, and the key test system of its use principle and embodiment one is similar.Be appreciated that key test system also can by other embodiments multiple (such as embodiment one, two, the fourth class) button testing device form.
Refer to Fig. 9, the button testing device of embodiment six is mainly for detection of button 9 to be measured, and it comprises pressing piece 118, support 128, four load parts (119,120,121,122), the first drive unit 51, second drive unit 52, four touch switch (123,124,125,126) and pick-up unit 55.
Pressing piece 118 comprises the bar portion 118a of strip and is positioned at the press section 118b of 118a one end, bar portion.On bar portion 118a, uniform intervals is distributed with the identical tray 127 of four shapes.Distance between adjacent two trays 127 is equal, is denoted as d.
Support 128 comprises four back up pads be arranged in parallel (133a, 133b, 133c, 133d).The middle part of each back up pad (133a, 133b, 133c, 133d) offers the through hole (sign) allowing bar portion 118a to pass together with tray 127.Support with two, left and right support column 130 between adjacent two back up pads.The length of every root support column 130 is equal, and the distance namely between adjacent two back up pads is equal.
The shape of four load parts, weight is identical.Each load part (119,120,121,122) is placed in a corresponding back up pad (133a, 133b, 133c, 133d).Distance between adjacent two load parts is equal, is denoted as D.So there is D > d.The middle part of each load part (119,120,121,122) offers a via hole (sign), the aperture of this via hole is more bigger than bar portion 118a, but less than tray 127, therefore bar portion 118a can pass this via hole, but tray 127 cannot pass this via hole.
First actuator 51 is connected with support 128, moves towards close or away from button 9 to be measured direction for driving arm 128.First drive unit 51 for impelling lower shaft on support 128 to move or move according to designing requirement Y-axis or drive unit that either direction axle is dynamic, as steam-operating device, electric device, numerical-control motor etc.
Second drive unit 52 is fixedly linked with button 9 to be measured, moves towards close or away from pressing piece 118 direction for driving button 9 to be measured.Similar with the first drive unit 51, the second drive unit 52 for impelling lower shaft on button 9 to be measured to move or move according to designing requirement Y-axis or drive unit that either direction axle is dynamic, as steam-operating device, electric device, numerical-control motor etc.
Four touch switch (123,124,125,126) are located on four back up pads (133a, 133b, 133c, 133d) respectively.Each load part (119,120,121,122) can press a corresponding touch switch (123,124,125,126).When the pressure activated touch switch of load part, touch switch can outside transmission signal, such as positive voltage or negative voltage signal.
Checkout equipment 55 respectively with top electrode 12, the bottom electrode 13 of button 9 to be measured, and four touch switch (123,124,125,126) electricity is connected, for measure pressing piece 118 displacement, receive button 9 to be measured logical by pressure time signal and receive the signal that four touch switch (123,124,125,126) send.In the present embodiment, pick-up unit 55 comprises the Systems for optical inspection of the displacement for measuring pressing piece.This Systems for optical inspection comprises the optical scale 141 that is installed on bar portion 118a and installs on leg 128 and the photoelectric sensor 142 corresponding with optical scale 141.In the present embodiment, optical scale 141 is that the opaque shading line of transparent material process black is formed, and also can adopt Exposure mode, transparent material is made shading line, for photoelectric sensor 142 reading signal.Be appreciated that Systems for optical inspection also can omit.
In order to better make pressing piece 118 slide up and down, support 128 also comprises the upper guided plate 129 be located at above back up pad 133a and the lower guided plate 140 being located at back up pad 133d lower end.Bar portion 118a slides and is arranged in guided plate 129 and lower guided plate 140.
The using method of the button testing device of the present embodiment is described below in detail.
If the weight of pressing piece 118 is 20g; The weight of each load part (119,120,121,122) is 15g.First the standard pressing displacement-force degree curve M of the normal button obtained as shown in Figure 10 will be measured.In Figure 10, dotted line V is the stroke that presents of the button testing device of the present embodiment and weight relationships line, and in figure, E, F, G, H, I are four load parts (119,120,121,122) in Fig. 9 relation figure when adding on pressing piece 118.
Refer to Figure 10 a, the first step, to be started by the first drive unit 51, slowly moved downward by support 128, now, because the tray 127 on pressing piece 118 is shelved on lower guided plate 140, therefore pressing piece 118 also will be followed support 128 and slowly moved downward together.
Refer to Figure 10 b, when pressing piece 118 press section 118b just contact measured button 9 time, the first drive unit 51 quits work, and now the stroke of pressing piece 118 is denoted as 0.
Then the second drive unit 52 drives button 9 to be measured to move upward, and is upwards boosted by pressing piece 118, till the tray 127 of bottom touches the load part 122 of bottom.In the process, the dynamics be applied on button 9 to be measured is the weight of pressing piece 118, the E point 20g of corresponding Figure 10.Now, penultimate tray 127 is L, L=D-d with the distance of load part 121; Third from the bottom tray 127 is 2L with the distance of load part 120; A uppermost tray 127 is 3L with the distance of load part 119.
Refer to Figure 10 c, the second drive unit 52 continues to drive button 9 to be measured to move upward, and the load part 122 of bottom is pushed away back up pad 133d, till penultimate tray 127 touches load part 121 by the tray 127 of bottom.In the process, the dynamics be applied on button 9 to be measured is that pressing piece 118 adds that the weight of a load part 122 is 20g+15g=35g, for Figure 10, rises to F point by E point.When load part 122 is separated with back up pad 133d, touch switch 126 is touched, and sends a signal to checkout equipment 55, and the weight that checkout equipment 55 just can obtain primaryload part 122 has been loaded on pressing piece 118.
Refer to Figure 10 d, the second drive unit 52 continues to drive button 9 to be measured to move upward, and load part 121 is pushed away back up pad 133c by penultimate tray 127, till third from the bottom tray 127 touches load part 120.In the process, the dynamics be applied on button 9 to be measured is that pressing piece 118 adds that the weight of two load parts 122 is 20g+15g+15g=50g, for Figure 10, rises to G point by F point.When load part 121 is just separated with back up pad 133c, touch switch 125 is touched, and sends a signal to checkout equipment 55, and the weight that checkout equipment 55 just can obtain primaryload part 121 has been loaded on pressing piece 118.
Refer to Figure 10 e, the second drive unit 52 continues to drive button 9 to be measured to move upward, and load part 120 is pushed away back up pad 133b by third from the bottom tray 127, till a uppermost tray 127 touches load part 119.In the process, the dynamics be applied on button 9 to be measured is that pressing piece 118 adds that the weight of three load parts 122 is 20g+15g+15g+15g=65g, for Figure 10, rises to H point by G point.When load part 120 is just separated with back up pad 133b, touch switch 124 is touched, and sends a signal to checkout equipment 55, and the weight that checkout equipment 55 just can obtain primaryload part 120 has been loaded on pressing piece 118.
Refer to Figure 10 f, the second drive unit 52 continues to drive button 9 to be measured to move upward, and load part 119 is pushed away back up pad 133a by a uppermost tray 127.In the process, the dynamics be applied on button 9 to be measured is that pressing piece 118 adds that the weight of four load parts 122 is 20g+15g+15g+15g+15g=80g, for Figure 10, rises to I point by H point.When load part 119 is separated with back up pad 133a, touch switch 123 is touched, and sends a signal to checkout equipment 55, and the weight that checkout equipment 55 just can obtain primaryload part 119 has been loaded on pressing piece 118.
Above example be the mode of four load parts 119, optionally precision can change the weight size of load part 119, quantity number, simultaneously also can specification error scope.
Whether above-mentioned button testing device can detect button and press bad.Such as, can the pressure that sets of button 9 to be measured to lead to weight be 65g, when three load parts 119 are all carried on pressing piece 118, the design of button resetting structure arrives collapse point, pressing piece 118 declines fast and the top electrode 12 in button 9 to be measured, bottom electrode 13 is connected, and checkout equipment 55 judges that this button is non-defective unit.
Find during test, checkout equipment 55 has received the signal that three touch switch 126,125,124 send, namely four load parts 119 are had to be added on pressing piece 118, weight is more than 65g (for 80g), but do not read the top electrode 12 of button 9 to be measured, signal that bottom electrode 13 is switched on, then illustrate that button 9 to be measured is logical by pressure yet, show that the loading that button 9 needs to be measured pressure is led to is excessive, can defective products be judged as.
Find during test, checkout equipment 55 receives only the signal that two touch switch 126,125 send, when namely having two load parts 119 to be added on pressing piece 118, weight is less than 65g (for 50g), the signal that checkout equipment 55 just have received the top electrode 12 of button 9 to be measured, bottom electrode 13 is switched on, then illustrate that button 9 to be measured is logical by pressure too early, show that the loading that button 9 needs to be measured pressure is led to is too small, can defective products be judged as.
Above-mentioned button testing device can also detect the bounce situations of button.After the second drive unit 52 shifts button 9 to be measured onto certain position together with pressing piece 118, the weight of multiple load part 119 will be applied on button 9 to be measured, the resetting structure of button 9 to be measured is collapsed, and the curve M shown in Figure 10 arrives button total travel, and button 9 to be measured is logical by pressure.Afterwards, the second drive unit 52 starts to move downward, and drive pressing piece 118 to decline, button 9 to be measured starts rebound reset, and resetting structure curve is as shown in Figure 11 curve N.From H point, during to G point, touch switch 123 sends a signal and notifies load part 119 by from removal on pressing piece 118 to checkout equipment 55, and the weight be applied to now on button 9 to be measured is 65g-15g=50g.Now the pressure that bears of the resetting structure of button 9 to be measured is higher and cannot reset.Second drive unit 52 continues to move downward, when pressing piece 118 arrives E point, checkout equipment 55 detects the signal that touch switch 124,125 and 126 sends, illustrate that load part 120,121,122 is by removal, the weight be now applied on button 9 to be measured is 65g-15g-15g-15g=20g, be less than the 35g of location point 3, the resetting structure of button 9 to be measured starts effect, is upspring by button 9 to be measured and reverts to virgin state.
Above-mentioned button testing device can detect after button pressure is led to whether resilience is bad.Figure 12 please be participate in, when three load parts 120,121,122 are loaded on pressing piece 118, when arriving the position 1 of Figure 12 upper curve M, the weight of load part is enough presses logical by button 9 to be measured, now the resetting structure of button 9 to be measured arrives collapse point, button 9 to be measured will rapidly drop to resetting structure minimum point 2, and corresponding weight is 35g, and stroke is 1.8mm.What location point 2 represented is the position of normal non-defective unit button.If measure the rebound curve of a certain button to be measured 9 for the curve X shown in Figure 12, resetting structure is put as the some 2a (corresponding weight is 45g, and stroke is 1.5mm) in Figure 12 most, then can be judged as that resilience is bad.
Be understandable that, upper guided plate 129, lower guided plate 140, second drive unit 52 also can omit.The quantity of load part and tray 127 also can be two, three, five or more.Distance between adjacent two trays 127 also can have a little difference, distance between adjacent two load parts also can by a little difference, distance between adjacent two back up pads also can by a little difference, and only need meet when pressing piece 118 moves, multiple load part loads successively.
Refer to Figure 13, the button testing device of embodiment seven is roughly the same with the structure of the button testing device of embodiment six, its distinguishing characteristics is, the button testing device of embodiment seven also comprises four the first bolsters (135,136,137 and 138).In the present embodiment, the first bolster is spring.Each first bolster is located between a tray 127 and a load part (119,120,121 and 122).
The use-pattern of the button testing device of embodiment seven is similar to embodiment six, does not repeat them here.The effect of four the first bolsters (135,136,137 and 138) can slow down four load parts (119,120,121 and 122) to be loaded into speed above pressing piece 118, be equivalent to the stroke of pressing piece 118 to be exaggerated, make operator detect difference than the mode being easier to measure stroke.The elasticity coefficient of the first bolster and length determine the multiple that stroke amplifies.
Please again consult Figure 12, the extreme lower position of the non-defective unit curve M of the button testing device of embodiment six is point 2, and the curve of bad button is X, and extreme lower position is a 2a.2a is higher than normal point 2 for point, and that is during resilience, strength is heavier, and the meeting that firing point arrives is slow.Unless this nuance employment hand dipping, otherwise very difficult apparatus measures goes out, but standard disunity, speed are slow, high in cost of production shortcoming to use manual measurement can derive again.But after using the button testing device of embodiment seven, the problems referred to above can be greatly improved.Figure 14 is the test curve figure of the button testing device of embodiment seven.Progressive error between Figure 12 mid point 2 and some 2a is 0.3mm, and the stroke that Figure 14 mid point 2 and some 2a show is 1.25, both have differed more than four times, illustrate that, after introducing the first bolster, the bad error for button resetting structure can zoom into larger difference value and judge for checkout equipment 55 thus.
Refer to Figure 15 a, the button testing device of embodiment eight is roughly the same with the structure of the button testing device of embodiment six, its distinguishing characteristics is, the button testing device of embodiment eight also comprises four the first bolsters (135,136,137 and 138).In the present embodiment, the first bolster is spring.Each first bolster is located between a load part (119,120,121 and 122) and a back up pad (133a, 133b, 133c, 133d).
The use-pattern of the button testing device of embodiment eight is similar to embodiment seven, does not repeat them here.It is emphasized that, non-defective unit button decline rate is normal, bad button decline rate can be fallen by the first bolster payment because of load part, thus decline rate is slack-off, so the Article 1 bar code of the optical scale 141 that also can read according to photoelectric sensor 142 judges the quality of button with the mistiming of the bar code finally read.
Refer to Figure 15 b, the button testing device of the present embodiment is roughly the same with the structure of the button testing device of embodiment six, its distinguishing characteristics is, the button testing device of the present embodiment eliminates four touch switch, is only judged the quality of button by Systems for optical inspection.
Refer to Figure 15 c, the button testing device of the present embodiment is roughly the same with the structure of the button testing device shown in Figure 15 b, and its distinguishing characteristics is, pressing piece 118 is also provided with damping piece 57.The effect of damping piece 57 as previously mentioned.
Refer to Figure 15 d, the button testing device of the present embodiment is roughly the same with the structure of the button testing device shown in Figure 13 embodiment seven, its distinguishing characteristics is, the button testing device of the present embodiment also comprises the second bolster 143 be bottom located between a tray and support 128.In the present embodiment, the second bolster 143 is located between tray 127 bottom and lower guided plate 140.The effect of the second bolster 143 is after the logical detection of button 9 to be measured pressure completes, when detecting the reset capability survey of button to be measured, first drive unit 51 is up mobile to be removed the weight of load part (119,120,121,122) from button 9 to be measured, the related pressing piece 118 that removes is to when only the weight of surplus pressing piece 118 own is applied to button 9 to be measured, and the effect by the second bolster 143 is reduced weight by pressing piece 118 slowly.
Refer to Figure 15 e, the button testing device of the present embodiment is roughly the same with the structure of the button testing device shown in Figure 15 d, and its distinguishing characteristics is, pressing piece 118 is also provided with damping piece 57.The effect of damping piece 57 as previously mentioned.
Refer to Figure 15 f, the button testing device of the present embodiment is roughly the same with the structure of the button testing device shown in Figure 15 d, its distinguishing characteristics is, four each first bolsters of the first bolster (135,136,137 and 138) are located between a load part (119,120,121 and 122) and a back up pad (133a, 133b, 133c, 133d).
Refer to Figure 15 g, the button testing device of the present embodiment is roughly the same with the structure of the button testing device shown in Figure 15 e, its distinguishing characteristics is, four each first bolsters of the first bolster (135,136,137 and 138) are located between a load part (119,120,121 and 122) and a back up pad (133a, 133b, 133c, 133d).
Refer to Figure 16, the button testing device of embodiment nine is roughly the same with the structure of the button testing device of embodiment six, and its distinguishing characteristics is, the first drive unit 51 is fixed on support 134, and the piston rod of the first drive unit 51 is connected with pressing piece 118.First drive unit 51 can drive pressing piece 118 to move towards close or away from button 9 to be measured direction.
The use-pattern of the button testing device of embodiment nine is similar to embodiment six, does not repeat them here.
Refer to Figure 17, the key test system of embodiment three is combined by the button testing device as embodiment nine that three are arranged in order, for detecting three button 9a, 9b and 9c to be measured.The key test system of embodiment two comprises three pressing pieces 118a, 118b, 118c, support 134,12 load parts (119a, 120a, 121a, 122a......119c, 120c, 121c, 122c), three first drive unit 51a, 51b, 51c, second actuator 52,12 touch switch (123a, 124a, 125a, 126a......123c, 124c, 125c, 126c) and a pick-up unit 55.Pick-up unit 55 comprises three optical scale 141a, 141b and 141c.
Each pressing piece 118a, 118b, 118c are provided with four trays (127a, 127c).
Support 134 comprises four back up pads be arranged in parallel (137a, 137b, 137c, 137d).Support with two, left and right support column 136 between adjacent two back up pads.Support 134 also comprises the upper guided plate 135 be located at above back up pad 137a and the lower guided plate 138 being located at back up pad 137d lower end.
Three first drive units 51a, 51b, 51c are fixed on support 134, and the piston rod of each first drive unit 51a, 51b, 51c is connected with pressing pieces 118a, 118b, 118c respectively.First drive unit 51a, 51b, 51c can drive pressing piece 118a, 118b, 118c to move towards close or away from button 9a, 9b and 9c to be measured direction.
All 12 touch switches (123a, 124a, 125a, 126a......123c, 124c, 125c, 126c) are all connected with proving installation 55.Checkout equipment 55 is also connected with top electrode 12a, 12b, 12c of button 9a, 9b to be measured and 9c and bottom electrode 13a, 13b, 13c respectively.
The using method of the key test system of the present embodiment is described below in detail.
Refer to Figure 18 a, first drive unit 51a, 51c starts simultaneously, drives pressing piece 118a, 118c to move downward certain stroke together, until tray 127a and 127c is shelved on lower guided plate 138.The object of this step mainly distinguishes the button needing to detect and the button not needing detection.
Refer to Figure 18 b, the second drive unit 52 drives button 9a, 9c to be measured to be communicated with 9b and moves upward together, until the end of pressing piece 118a, 118c contacts with button 9a, 9c to be measured respectively, now the stroke of pressing piece 118a, 118c is denoted as 0.Because the first drive unit 51b is not activated, therefore button 9b to be measured can not contact with pressing piece 118b.
Refer to Figure 18 c, then the second drive unit 52 drives button 9a, 9c to be measured to move upward, and pressing piece 118a, 118c is upwards boosted, till penultimate tray 127a, 127c touch load part 121a, 121c.In the process, the dynamics be applied on button 9a, 9c to be measured is the weight that pressing piece 118a, 118c add load part 122a, a 122c.
Refer to Figure 18 d, the second drive unit 52 drives button 9a, 9c to be measured to move upward, and pressing piece 118a, 118c is upwards boosted, till third from the bottom tray 127a, 127c touch load part 120a, 120c.In the process, the dynamics be applied on button 9a, 9c to be measured is the weight that pressing piece 118a, 118c add two load parts 122a, 122c.
Refer to Figure 18 e, second drive unit 52 continues to drive button 9a, 9c to be measured to move upward, load part 120a, 120c are pushed away back up pad 137b by third from the bottom tray 127a, 127c, till uppermost tray 127a, a 127c touch load part 119a, 119c.In the process, the dynamics be applied on button 9a, 9c to be measured is the weight that pressing piece 118a, 118c add three load parts 122a, 122c.
Refer to Figure 18 f, the second drive unit 52 continues to drive button 9a, 9c to be measured to move upward, and load part 119a, 119c are pushed away back up pad 137a by uppermost tray 127a, a 127c.In the process, the dynamics be applied on button 9a, 9c to be measured is the weight that pressing piece 118a, 118c add four load parts 122a, 122c.
Whether the key test system of above-described embodiment can detect button and press bad or whether resilience is bad, and the mode of detection is as similar in embodiment six, does not repeat them here.The key test system of above-described embodiment is the form comprising three button testing devices, but is appreciated that the quantity of button testing device also can be two, four or more.
Refer to Figure 19, the key test system of embodiment four is roughly the same with the structure of the key test system of embodiment two, its difference is, the key test system of embodiment three also comprises 12 the first bolsters (127a, 128a, 129a, 130a......127c, 128c, 129c, 130c).In the present embodiment, the first bolster is spring.Each first bolster is located between a load part (119a, 120a, 121a, 122a......119c, 120c, 121c, 122c) and a tray (127a, 127c).The effect of the first bolster is as described in embodiment seven.
Refer to Figure 20, the key test system of embodiment five is roughly the same with the structure of the key test system of embodiment two, its difference is, the key test system of embodiment three also comprises 12 the first bolsters (127a, 128a, 129a, 130a......127c, 128c, 129c, 130c).In the present embodiment, the first bolster is spring.Each first bolster is located between a load part (119a, 120a, 121a, 122a......119c, 120c, 121c, 122c) and a back up pad (137a, 137b, 137c, 137d).
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (9)

1. a button testing device, is characterized in that, comprising:
Pressing piece, for pressing button to be measured;
Load part, is connected movably with this pressing piece;
First bolster, is located between this pressing piece and this load part;
The inside of this load part offers host cavity, the bottom of this load part also offers the through hole being communicated with this host cavity, surrounding's formation that this load part is positioned at this through hole compresses seat, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, the width of this press section is less than the width in this bar portion, this bar portion activity is contained in this host cavity, this press section is arranged in this through hole, this the first bolster one end and this compress seat and offset, the end face in the other end and this bar portion offsets, this button testing device also comprises the second bolster be located between this top, bar portion and top of this host cavity.
2. button testing device according to claim 1, is characterized in that, also comprises:
First drive unit, is connected with this load part, moves towards close or away from button to be measured direction for driving this load part;
Second drive unit, moves towards close or away from this pressing piece direction for driving button to be measured; And
Checkout equipment, for the displacement of measuring pressing piece and the dynamics be applied on button to be measured.
3. button testing device according to claim 2, it is characterized in that: this checkout equipment comprises the Systems for optical inspection of the displacement for measuring pressing piece, this Systems for optical inspection comprises the optical scale and the photoelectric sensor corresponding with this optical scale that are installed on this pressing piece.
4. a key test system, it is characterized in that: comprise multiple as the button testing device of claims 1 to 3 as described in any one, for testing multiple button to be measured simultaneously, each button to be measured comprises top electrode and bottom electrode, the top electrode of multiple button to be measured is interconnected, or the bottom electrode of multiple button to be measured is interconnected.
5. key test system according to claim 4, is characterized in that: also comprise control module, and the plurality of button to be measured is divided into multiple region, and this control module controls this first drive unit and the second drive unit detects separately each region.
6. a button testing device, is characterized in that, comprising:
Pressing piece, for pressing button to be measured, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, and this bar portion is provided with the tray at multiple interval;
Support, comprises multiple back up pad of be arrangeding in parallel and the support column between adjacent two back up pads, each back up pad offers the through hole allowing this tray to pass;
Multiple load part, each load part is placed in a back up pad, each load part offers and allows this bar portion pass but stop the via hole that this tray passes, and the distance between adjacent two load parts is greater than the distance between adjacent two trays;
First drive unit, is connected with this support, moves towards close or away from button to be measured direction for driving this bar portion;
Second bolster, is located between a tray and this support;
Multiple touch switch, each touch switch is located in a back up pad, and can trigger by the pressure of this load part; And
Checkout equipment, is connected with button to be measured with the plurality of touch switch, for measuring the displacement of pressing piece and receiving the signal that the plurality of touch switch sends.
7. button testing device according to claim 6, is characterized in that: also comprise multiple first bolster, and each first bolster is located between a tray and a load part; Or each first bolster is located between a back up pad and a load part.
8. a button testing device, is characterized in that, comprising:
Pressing piece, for pressing button to be measured, this pressing piece comprises bar portion and is positioned at the press section of this one end, bar portion, and this bar portion is provided with the tray at multiple interval;
Support, comprises the back up pad of multiple parallel placement and the support column between adjacent two back up pads, each back up pad offers the through hole allowing this tray to pass, and the distance between adjacent two back up pads is greater than the distance between adjacent two trays;
Multiple load part, each load part is placed in a back up pad, each load part offers and allows this bar portion pass but stop the via hole that this tray passes;
Second bolster, is located at one between tray and support;
First drive unit, is fixed on support, and is connected with this bar portion, moves towards close or away from button to be measured direction for driving this press section;
Checkout equipment, button to be measured is connected, this checkout equipment comprises the Systems for optical inspection of the displacement for measuring pressing piece, and this Systems for optical inspection comprises the optical scale that is installed on this bar portion and is arranged on photoelectric sensor on this support and corresponding with this optical scale.
9. button testing device according to claim 8, is characterized in that: also comprise damping piece, is located on this pressing piece or this load part.
CN201210015413.8A 2012-01-18 2012-01-18 Button testing device and key test system CN103217643B (en)

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