WO2017080130A1

WO2017080130A1 - Button force measurement curvometer

Info

Publication number: WO2017080130A1
Application number: PCT/CN2016/076556
Authority: WO
Inventors: 罗光亮
Original assignee: 苏州辛格顿智能科技有限公司
Priority date: 2015-11-09
Filing date: 2016-03-17
Publication date: 2017-05-18
Also published as: CN105258934A

Abstract

A button force measurement curvometer comprises a frame (1), a workbench (2), a protective cover (3), a test host machine (4), and a button test mechanism (5). The protective cover (3) is provided with a display screen (6), and control buttons (7). The test host machine (4) is mounted in the frame (1). The button test mechanism (5) is disposed on the workbench (2). Data tested by the button test mechanism (5) is processed by means of the test host machine (4) and then is reflected by the display screen (6). A to-be-tested product is placed on a product carrying tool (12); and then the button test mechanism (5) tests the to-be-tested product; comfortableness of traditional buttons is quantified; the whole process of button triggering is effectively reflected in the mode of curve coordinates in terms of a push stroke and rebounding force, indicators such as a maximum rebounding force, a minimum rebounding force and press-down displacements of characteristic points are tested, so as to provide more convenience for quality management and control in a production process.

Description

Button force curve meter

Technical field

The invention relates to a button force measuring curve instrument, belonging to the keyboard detection in the fields of computer, automobile electronics and consumer electronics.

Background technique

As an important part of the computer, the computer keyboard keys must first ensure the user's effectiveness and accuracy for the key input operation, and also ensure the user's comfort when tapping the keys (the rebound resistance of the keys during the keystroke) Decide). According to the evolution of keyboard key detection in the industry, it can be roughly divided into two generations. The first generation of button detection is manual detection. That is, many operators manually press the buttons one by one, and manually judge whether the button is based on the feel of the operator. qualified. The second generation of button detection is the weight detection, and the button is automatically pressed by the standard weight. The button that can be triggered is the qualified button, and the button resistance is too large to be triggered. The above two methods have their own shortcomings: the first generation of manual detection: the speed is slow, the comfort of the button can not be quantified by the operator's feel, and it is easy to cause wrong judgment or defective product judgment; the second generation weight detection can only be The pressure of the weight of a single weight is detected, and the resistance of the button is greater than the weight is judged to be bad, but the disadvantage is that the button with too small button resistance cannot be detected, and the displacement during the pressing process cannot be detected, so the solution still cannot Comprehensive response to the user's touch comfort during the button press.

Summary of the invention

In view of the above-mentioned technical problems, the object of the present invention is to propose a button force curve meter which quantifies the comfort of a conventional button and is more convenient for the quality control of the production process.

The technical solution of the present invention is implemented as follows: a button force curve meter comprising a frame, a work table, a protective cover, a test host and a button test mechanism; the cover is provided with a display screen and a control button; The test host is installed in the rack; the button test mechanism is disposed on the workbench; and the data tested by the button test mechanism is processed by the test host and reflected by the display screen.

Preferably, the button testing mechanism comprises a gantry bracket, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism and a product carrier; the gantry bracket and the Y-axis motion mechanism are all mounted on the workbench; The shaft motion mechanism is disposed on the gantry bracket; the Z-axis motion mechanism is mounted on the X-axis motion mechanism; the product carrier is mounted on the Y-axis motion mechanism; and the Y-axis motion mechanism is movable back and forth on the workbench; The Z-axis motion mechanism is movable to the left and right on the X-axis motion mechanism; the Z-axis motion mechanism is further provided with a detection module.

Preferably, the detecting module comprises a moving support plate, a fixed support and a load cell; the moving support plate is mounted on the Z-axis motion mechanism and can move up and down; the fixed support is connected to the mobile support plate A load cell is disposed under the fixed support.

Due to the application of the above technical solutions, the present invention has the following advantages over the prior art:

The button force measuring curve instrument of the invention adopts the button testing mechanism to detect the product to be detected on the product carrier, and quantifies the comfort of the traditional button, and adopts a pressing stroke and the whole process of the button triggering. The rebound force is effectively reflected by the curve coordinates, and the maximum rebound force, the minimum rebound force, and the depression displacement of each feature point are detected in the process of pressing the button, thereby facilitating the quality control of the production process.

DRAWINGS

The technical solution of the present invention is further described below with reference to the accompanying drawings:

1 is a schematic structural view of a key force curve meter of the present invention;

2 is a schematic internal view of a key force measuring curve meter of the present invention;

Among them: 1, rack; 2, workbench; 3, protective cover; 4, test host; 5, button test mechanism; 6, display; 7, control button; 8, gantry bracket; 9, X-axis motion mechanism; 10, Y-axis motion mechanism; 11, Z-axis motion mechanism; 12, product carrier; 13, detection module; 14, moving support; 15, fixed support; 16, load cell.

detailed description

The invention will now be described with reference to the accompanying drawings.

1 and 2 are a key force measuring curve meter according to the present invention, comprising a frame 1, a work table 2, a protective cover 3, a test host 4 and a button testing mechanism 5; the protective cover 3 is provided with a display The screen 6 and the control button 7; the test host 4 is installed in the rack 1; the button test mechanism 5 is disposed on the workbench 2; the data tested by the button test mechanism 5 is processed by the test host 4 The screen 6 is reflected; the button testing mechanism 5 includes a gantry bracket 8, an X-axis motion mechanism 9, a Y-axis motion mechanism 10, a Z-axis motion mechanism 11 and a product carrier 12; the gantry bracket 8 and the Y-axis motion mechanism 10 are both Mounted on the table 2; the X-axis motion mechanism 9 is disposed on the gantry bracket 8; the Z-axis motion mechanism 11 is mounted on the X-axis motion mechanism 9; and the product carrier 12 is mounted on the Y-axis motion mechanism 10. The Y-axis motion mechanism 10 is movable back and forth on the table 2; the Z-axis motion mechanism 11 is movable to the left and right on the X-axis motion mechanism 9; and the Z-axis motion mechanism 11 is further provided with a detection module. 13; the detection module 13 includes a moving support plate 14, a fixed support 15 and a load cell 16; The mobile support plate 14 is mounted on the Z-axis motion mechanism 11, and moves up and down; the fixed support plate 15 and the mobile support 14 phases are connected; a load cell 16 is arranged below the fixed support 15 .

When the button force gauge is working, the product to be processed is placed on the product carrier 12, the machine is started, the product carrier 12 is moved back and forth under the control of the motor, and the detection module 13 moves up and down in the Z-axis motion mechanism 11, and the Z-axis motion The mechanism 11 can move left and right on the X-axis moving mechanism 9, so that the load cell 16 comprehensively detects the product, and the pressure of the button is fed back when the end of the load cell 16 is pressed on the button by the lifting and lowering of the load cell 16 The signal and the pressure signal are transmitted to the test host 4. In the process, the detection module 13 performs uniform motion under the control of the machine, and the speed is the frequency of the pulse signal. When a certain characteristic of the force signal occurs, the sampling according to the acquisition card The frequency can calculate the elapsed time, and then the displacement of the position of the characteristic point of the force can be calculated according to the time. The test host 4 collects, records, analyzes and processes the data by the method of quantifying the touch of the button, as follows: Collecting, the keyboard to be detected is in contact with the load cell 16, the rebound force of the button sensed by the load cell 16, and pressing during the pressing process The pressure-displacement curve (hereinafter referred to as FD curve) of the pressing process is formed by the key relative to the initial contact point stroke; and various tactile data during the pressing of the button are expressed according to the feature value in the FD curve and the indirect calculation feature value; Wherein, Fp1 is the peak pressure of the button pressing process;

Fv1 is the valley pressure of the button pressing process;

Fon is the pressure when the contact is turned on during the pressing of the button;

Dp1 is the displacement when the peak pressure of the button pressing process occurs;

Dv1 is the displacement when the valley pressure of the button pressing process occurs;

Don is the displacement when the contact is turned on during the pressing of the button;

Fp2 is the peak pressure during the rising of the button;

Fv2 is the valley pressure of the button rising process;

Foff is the pressure when the contact is turned on during the rising of the button;

Dp2 is the displacement when the peak pressure of the button rising process occurs;

Dv2 is the displacement when the valley pressure of the button rising process occurs;

Doff is the displacement when the contact is turned on during the rising of the button;

Based on the above directly measured data, the following indirect data is measured to measure the touch of the button:

Fp-v1=Fp1-Fv1 is the difference between the pressure peaks and valleys during the pressing process (reflecting the absolute amount of retraction after the button is pressed);

Fp-v/p1=(Fp1-Fv1)/Fp1*100% is the ratio of the difference between the pressure peak to the valley value and the peak value during the pressing process (reflecting the ratio of the retraction after the button is pressed);

Fp-v2=Fp2-Fv2 is the difference between the pressure peaks and valleys during the ascent (reflecting the absolute amount of retraction during the release of the button);

Fp-v/p2=(Fp1-Fv1)/Fp1*100% is the ratio of the difference between the peak value and the valley of the pressure peak during the rising process (reflecting the ratio of retraction during the release of the button);

Sp1=Fp1/Dp1 is the ratio of the peak force to the peak displacement during the depression (reflecting the speed at which the button reaches the pressure peak);

Spv1=(Fp1-Fv1)/(Dv1-Dp1) is the ratio of the difference between the peak-to-valley difference and the peak-to-valley displacement during the depression (reflecting the speed of the button retraction process);

Sp2=Fp1/Dp1 is the ratio of the peak force to the peak displacement during the depression (reflecting the speed at which the button reaches the pressure peak);

Spv2=(Fp2-Fv2)/(Dp2-Dv2) is the ratio of the difference between the peak-to-valley difference and the peak-to-valley displacement during the rise (reflecting the speed of the button retraction during release);

Data recording and analysis, detected in step 2 by the data acquisition card in the host Data collection and input into the computer for recording and analysis;

Data processing, using virtual instrument software for data analysis and processing, and outputting results through a computer display;

The result is judged, and the qualified judgment of the product is performed according to the computer output result;

Eventually, the data is displayed on the display to complete the inspection of the product.

According to the solution of the present invention, the product to be inspected is placed on the product carrier 12, and the button testing mechanism 5 detects the same, and the comfort of the traditional button is quantified, and the whole process of the button triggering adopts the pressing stroke and the rebounding force with the curvilinear coordinates. The method is effectively reflected, and the maximum rebound force, the minimum rebound force, and the depression displacement of each feature point are detected in the process of pressing the button, thereby facilitating the quality control of the production process.

The above embodiments are only intended to illustrate the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and not to limit the scope of the present invention. Equivalent changes or modifications made in substantial form are intended to be included within the scope of the invention.

Claims

A button force measuring curve instrument, comprising: a frame, a work table, a protective cover, a test host and a button test mechanism; the protective cover is provided with a display screen and a control button; the test host is mounted on the rack The button test mechanism is disposed on the workbench; the data tested by the button test mechanism is processed by the test host and reflected by the display screen.
The key force measuring instrument according to claim 1, wherein the button testing mechanism comprises a gantry bracket, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism, and a product carrier; The bracket and the Y-axis motion mechanism are both mounted on the worktable; the X-axis motion mechanism is disposed on the gantry bracket; the Z-axis motion mechanism is mounted on the X-axis motion mechanism; and the product carrier is mounted on the Y-axis motion mechanism The Y-axis motion mechanism is movable back and forth on the workbench; the Z-axis motion mechanism is movable to the left and right on the X-axis motion mechanism; and the Z-axis motion mechanism is further provided with a detection module.
A key force curve meter according to claim 2, wherein said detecting module comprises a moving support plate, a fixed support and a load cell; said moving support plate is mounted on the Z-axis motion mechanism, And being movable up and down; the fixed support is connected to the moving support plate; and the load cell is disposed under the fixed support.