A multi-position pressing test equipment for large-area key samples

Abstract

The present invention relates to the technical field of test devices, and in particular to a multi-position pressing test device for large-area key samples, including a body, a host, a fixing mechanism and a pressing mechanism, all of which are arranged on the body, wherein the fixing mechanism is used to fix the sample to be tested, and the pressing mechanism is used to press the key of the sample to be tested. The body is provided with a first recognition device, which is located directly above the fixing mechanism and is used to photograph the sample to be tested fixed by the fixing mechanism, and the first recognition device, the fixing mechanism and the pressing mechanism are all connected to the host signal. After the present invention obtains the image of the sample to be tested by the first recognition device, it uses image analysis to mark multiple test selections of the sample to be tested, and then performs a pressing experiment on each test selection to make the test result more comprehensive.

Description

Technical Field

[0001] The invention relates to the technical field of test devices, and in particular to a multi-position pressing test device for large-area key samples. Background Art

[0002] Button test (also known as button press test) is one of the important test links for peripherals of electronic devices such as mouse and keyboard. It judges whether the performance of the button meets the standard by pressing the left and right buttons of the mouse and the keys of the keyboard multiple times and the number of signals sent by the button when it is pressed.

[0003] However, different users have different usage habits. When using the same mouse, different users will press different buttons. As for the mouse pressing experiment, the commonly used method is to press any button multiple times. Obviously, the test results are not comprehensive and accurate. Summary of the invention

[0004] In view of the problems of the prior art, the present invention provides a multi-position pressing test device for a large-area button sample, which can automatically test different positions of the same button of a mouse.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a multi-position pressing test device for a large-area key sample, comprising a body, a host, a fixing mechanism and a pressing mechanism, all of which are arranged on the body, wherein the fixing mechanism is used to fix the sample to be tested, and the pressing mechanism is used to press the key of the sample to be tested, and the body is provided with a first recognition device, which is located directly above the fixing mechanism and is used to photograph the sample to be tested fixed by the fixing mechanism, and the first recognition device, the fixing mechanism and the pressing mechanism are all connected to the host signal;

[0007] The following steps are also included:

[0008] Fixing the sample to be tested by a fixing mechanism;

[0009] Interact signals between the sample to be tested and the host;

[0010] The sample to be tested on the fixing mechanism is photographed by the first recognition device to obtain an image of the sample to be tested and transmit it to the host;

[0011] Analyzing the image of the sample to be tested by the host to obtain the keys of the sample to be tested;

[0012] The host selects test areas for the keys of the sample to be tested according to preset rules;

[0013] The host controls the pressing mechanism to move and performs pressing tests on each test area according to a predetermined sequence and frequency.

[0014] Furthermore, the pressing mechanism includes a translation module, a lifting module, a pressing seat, a pressing motor, a pressing head and an eccentric piece. The translation module is installed on the machine body and is used to drive the pressing seat to move horizontally. The lifting module is used to drive the pressing seat to move up and down. The pressing head is movably arranged on the pressing seat. The pressing motor is installed on the pressing seat. The pressing motor is used to drive the eccentric piece to rotate to drive the pressing head to move up and down. The pressing head is used to press the button of the sample to be tested.

[0015] Furthermore, the machine body is also provided with a second identification device, which is used to obtain the side profile of the sample to be tested fixed by the fixing mechanism;

[0016] The host performs a pressing test on each test area according to a predetermined order and frequency, specifically including:

[0017] S1. Control the pressing motor to rotate so that the pressing head drops to the lowest position;

[0018] S2. Obtaining a side profile image of the sample to be tested through a second recognition device, and marking the position of each test area in the side profile image;

[0019] S3. The pressing seat is controlled by the translation module to move to the top of the sample to be tested, and then the lifting module controls the pressing seat to descend until the pressing head contacts the first test selection area of ​​the key of the sample to be tested, and the host receives a signal sent when the key of the sample to be tested is pressed;

[0020] S4. The pressing motor rotates, and the pressing head is driven by the eccentric member to periodically press the button of the sample to be tested until the preset frequency is completed;

[0021] S5. Execute step S3 until the pressing head contacts the second test area of ​​the key of the sample to be tested, and then execute step S4; after the pressing test is completed for all test areas, the pressing mechanism is reset.

[0022] Furthermore, the pressing motor is a double-headed motor, the number of pressing heads and eccentric pieces are two respectively, the two eccentric pieces are respectively installed at the two output ends of the pressing motor, the eccentric pieces are drive-connected with the pressing heads in a one-to-one correspondence, and the lifting and lowering actions of the two pressing heads are the same or opposite;

[0023] The pressing seat is also equipped with an encoder, which is used to sense the number of rotations of the rotating shaft of the double-headed motor; in step S1, the rotation of the pressing motor is controlled by the signal fed back by the encoder to adjust the current posture of the pressing head.

[0024] Furthermore, step S4 specifically includes:

[0025] S41. The encoder monitors the number of revolutions of the rotary shaft of the pressing motor n, and transmits the number of revolutions change data to the host in real time;

[0026] S42. The host records the number of signal transmissions of the sample to be tested n';

[0027] S43. Compare the values ​​of n and n'. When the change in the value of n is not equal to the change in the value of n', record the current value of n.

[0028] Furthermore, the pressing head is also provided with a pressure sensor. In step S3, when the pressing head contacts the sample to be tested, the pressure signal is fed back to the host through the pressure sensor until the pressure value reaches a preset value and the host receives the signal sent by the sample to be tested, and the lifting module no longer controls the pressing head to descend.

[0029] Furthermore, the pressing mechanism also includes a roller test module, which includes a test seat, a height adjustment module, a drive motor and a transmission wheel. The height adjustment module is installed at the output end of the lifting module, and the height adjustment module is used to drive the test seat to rise and fall. The transmission wheel is rotatably arranged on the test seat, and the drive motor drives the transmission wheel, which is used to contact the roller of the sample to be tested and drive the roller to rotate;

[0030] When in use, the height adjustment module controls the pressing seat and the test seat to lift, and then controls the test seat to descend until the transmission wheel contacts the roller of the sample to be tested, and then the driving motor drives the transmission wheel to rotate.

[0031] Furthermore, the roller test module also includes a photoelectric switch, a groove is provided on one side of the transmission wheel, the output end of the photoelectric switch is directly opposite to the groove, and the photoelectric switch is connected to the host signal.

[0032] Further, the fixing mechanism includes a first driving module, a second driving module, two first positioning members and two second positioning members, the first driving module is used to drive the two first positioning members to move closer to or farther from each other, the second driving module is used to drive the two second positioning members to move closer to or farther from each other, an accommodating space for accommodating a sample to be tested is formed between the two first positioning members and the two second positioning members, and a contact switch is provided at one end of the first positioning members that are close to each other and at one end of the second positioning members that are close to each other; the action modes of the fixing mechanism include:

[0033] A. Drive the two first positioning members to approach each other through the first driving module. When the two first positioning members are triggered at the same time, execute step C; when the contact switch of one of the first positioning members is triggered, execute step B;

[0034] B. The first driving module continues to move, pushing the sample to be tested to move through the first positioning member whose contact switch is triggered, until the contact switches of the two first positioning members are triggered, and then executing step C;

[0035] C. The first driving module drives the two first positioning members in reverse direction away from each other by a preset distance L;

[0036] D. driving the two second positioning members to approach each other through the second driving module, and when the two second positioning members are triggered at the same time, executing step F; when the contact switch of one of the second positioning members is triggered, executing step E;

[0037] E. The second driving module continues to move, pushing the sample to be tested to move through the second positioning member whose contact switch is triggered, until the contact switches of the two second positioning members are triggered, and then executing step F;

[0038] F. The second driving module stops moving and is locked, and the first driving module drives the two first positioning members to move toward each other until the contact switches of the two first positioning members are triggered, and then the first driving module stops moving and is locked.

[0039] Furthermore, in step C, the method of obtaining the preset distance L includes:

[0040] After the sample to be tested is transferred to the fixing mechanism, the image of the sample to be tested is acquired by the first recognition device and transmitted to the host, and the host measures the maximum width L of the sample to be tested in the image. max With minimum width L min ;

[0041] According to L = k*(L max -L min ) calculates a preset distance L;

[0042] Wherein, k is a constant and 1≤k≤1.3.

[0043] Beneficial effects of the present invention: After the present invention obtains the image of the sample to be tested through the first recognition device, multiple test areas of the sample to be tested are marked through image analysis, and then a pressing experiment is performed on each test area respectively, so that the test results are more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the present invention.

[0045] Figure 2 Schematic diagram of the pressing mechanism of the present invention.

[0046] Figure 3 It is a schematic diagram of the cooperation among the pressing motor, the eccentric piece and the pressing head of the present invention.

[0047] Figure 4 This is a schematic diagram of the pressing motor of the present invention being a double-headed motor.

[0048] Figure 5 Schematic diagram of the roller test module of the present invention.

[0049] Figure 6 It is a schematic diagram of the fixing mechanism of the present invention.

[0050] Figure 7 Schematic diagram of the sample to be tested according to the present invention.

[0051] Figure numerals: 1—machine body, 2—host, 3—fixing mechanism, 4—pressing mechanism, 5—first identification device, 6—second identification device, 7—roller test module, 8—sample to be tested, 31—first driving module, 32—second driving module, 33—first positioning member, 34—second positioning member, 35—contact switch, 41—translation module, 42—lifting module, 43—pressing seat, 44—pressing motor, 45—pressing head, 46—eccentric member, 47—encoder, 48—pressure sensor, 49—clutch, 71—test seat, 72—height adjustment module, 73—driving motor, 74—transmission wheel, 75—photoelectric switch, 76—groove, 81—button, 82—first test selection area, 83—second test selection area, 84—roller. DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0053] like Figures 1 to 6 As shown, the present invention provides a multi-position pressing test device for a large-area key sample, comprising a body 1, a host 2, a fixing mechanism 3 and a pressing mechanism 4, all of which are arranged on the body 1, wherein the fixing mechanism 3 is used to fix the sample 8 to be tested, and the pressing mechanism 4 is used to press the key 81 of the sample 8 to be tested, and the body 1 is provided with a first recognition device 5, which is located directly above the fixing mechanism 3 and is used to photograph the sample 8 to be tested fixed by the fixing mechanism 3, and the first recognition device 5, the fixing mechanism 3 and the pressing mechanism 4 are all connected to the host 2 by signal;

[0054] The following steps are also included:

[0055] Fix the sample 8 to be tested by the fixing mechanism 3;

[0056] The sample to be tested 8 exchanges signals with the host 2;

[0057] The sample to be tested 8 on the fixing mechanism 3 is photographed by the first recognition device 5 to obtain an image of the sample to be tested 8 and transmit it to the host 2;

[0058] The host 2 analyzes the image of the sample 8 to be tested to obtain the key 81 of the sample 8 to be tested;

[0059] The host 2 selects a test area for the key 81 of the sample 8 to be tested according to a preset rule;

[0060] The host 2 controls the pressing mechanism 4 to move, and performs pressing tests on each test area according to a predetermined sequence and frequency.

[0061] In actual use, for example, the left button of a mouse is originally supposed to be pressed 10,000 times for testing, but in the present invention, the left button is divided into four test areas, and each test area is pressed 2,500-3,000 times. In this way, although the total number of times is the same, the present invention can perform a press test on each test area, and if there is a problem with the selected press, it will be calibrated for subsequent troubleshooting.

[0062] Specifically, the first recognition device 5 described in this embodiment is preferably an industrial camera, and its purpose is to obtain the specific shape of the sample to be tested 8 (i.e., the mouse) and the position and pressable area of ​​the button 81. The preset rules described in the present invention are set by investigating and collecting the wear positions and pressed positions of the samples to be tested 8 of similar shapes and volumes, and then sorting them out: for the sample to be tested 8 with a larger button 81 area, no more than six test selection areas can be set; for the sample to be tested 8 with a smaller button 81 area, at least only one test selection area can be set.

[0063] In summary, the present invention adopts a method of performing press tests on multiple test areas respectively, thereby achieving the effect of testing the keys 81 of the test sample 8 more comprehensively and accurately.

[0064] In this embodiment, the pressing mechanism 4 includes a translation module 41, a lifting module 42, a pressing seat 43, a pressing motor 44, a pressing head 45 and an eccentric piece 46. The translation module 41 is installed on the body 1 and is used to drive the pressing seat 43 to move horizontally. The lifting module 42 is used to drive the pressing seat 43 to move up and down. The pressing head 45 is movably arranged on the pressing seat 43. The pressing motor 44 is installed on the pressing seat 43. The pressing motor 44 is used to drive the eccentric piece 46 to rotate to drive the pressing head 45 to move up and down. The pressing head 45 is used to press the button 81 of the sample to be tested 8.

[0065] In actual use, the translation module 41 can be composed of an X-axis module and a Y-axis module, and the lifting module 42 is a Z-axis module, all of which are conventional technologies and will not be elaborated on; the pressing motor of the present invention is preferably a servo motor, and the speed of the servo motor can be adjusted according to the required pressing frequency.

[0066] The pressing seat 43 has a slot that forces the pressing head 45 to only move up and down, and the eccentric piece 46 is installed on the rotating shaft of the pressing motor 44, and the eccentric end of the eccentric piece 46 is rotatably connected to the pressing head 45. During the test, the pressing motor 44 drives the pressing head 45 to move down and up once for each rotation, thereby completing a pressing cycle. The eccentric piece 46 is directly connected to the pressing head 45 instead of being matched with the spring, mainly to avoid the mechanical fatigue of the spring after repeated use, which affects the test stability.

[0067] Specifically, the body 1 is further provided with a second identification device 6, which is used to obtain the side profile of the sample to be tested 8 fixed by the fixing mechanism 3;

[0068] The host 2 performs a pressing test on each test area according to a predetermined order and frequency, specifically including:

[0069] S1. Control the pressing motor 44 to rotate so that the pressing head 45 drops to the lowest position;

[0070] S2. Obtaining a side profile image of the sample to be tested 8 through the second recognition device 6, and marking the position of each test area in the side profile image;

[0071] S3. The pressing seat 43 is controlled by the translation module 41 to move to the top of the sample 8 to be tested, and then the lifting module 42 controls the pressing seat 43 to descend until the pressing head 45 contacts the first test selection area 82 of the key 81 of the sample 8 to be tested, and the host 2 receives a signal sent when the sample 8 to be tested is pressed;

[0072] S4. The pressing motor 44 rotates, and the pressing head 45 is driven by the eccentric member 46 to periodically press the button 81 of the sample to be tested 8 until the preset frequency is completed;

[0073] S5. Execute step S3 until the pressing head 45 contacts the second test area 83 of the key 81 of the sample 8 to be tested, and then execute step S4; after the pressing test is completed for all test areas, the pressing mechanism 4 is reset.

[0074] Preferably, the number of the pressing motor 44, the pressing head 45 and the eccentric member 46 is two respectively, and one pressing motor 44, one pressing head 45 and one eccentric member 46 are correspondingly arranged. During operation, the two pressing heads 45 press the two test selection areas 83 respectively, thereby improving the test efficiency.

[0075] As another implementation of this embodiment, the pressing motor 44 is a double-headed motor, and the number of pressing heads 45 and eccentric pieces 46 are respectively two. The two eccentric pieces 46 are respectively installed at the two output ends of the pressing motor 44. The eccentric pieces 46 are drive-connected to the pressing heads 45 in a one-to-one correspondence, and the lifting and lowering actions of the two pressing heads 45 are the same or opposite.

[0076] In actual application, the actions of the two pressing heads 45 are preferably opposite to each other: that is, when one pressing head 45 rises, the other pressing head 45 descends to press the sample to be tested 8. By setting the two pressing heads 45, it is possible to perform a pressing test on the two buttons 81 of the sample to be tested 8 at the same time, so that the two buttons are not pressed at the same time, which ensures that the signals will not interfere with each other, and conforms to the actual habit of using the mouse, making the test more in line with the actual use scenario.

[0077] In actual use, the pressing seat 43 is also equipped with an encoder 47, which is used to sense the number of rotations of the rotating shaft of the double-headed motor; in step S1, the pressing motor 44 is controlled to rotate by the signal fed back by the encoder 47 to adjust the current posture of the pressing head 45. Through the setting of the encoder 47, the effect of accurately detecting the current posture of the rotating shaft of the servo motor is achieved, so that the specific position of the pressing head 45 can be controlled according to the encoder 47 signal: that is, when the encoder 47 completes a cycle of rotation, the pressing head 45 completes a pressing action; and the current state of the encoder 47 can also be fed back from the signal, and it can be inferred whether the pressing head 45 is currently in a pressing or lifting posture, so as to facilitate adjustment and reset.

[0078] In addition, the second identification device 6 is preferably an industrial camera, whose function is to photograph the side of the sample to be tested 8, so as to obtain the height of each test area. Each time the test area is switched, the lifting module 42 can adjust the height of the pressing head 45 to ensure that the force applied to the sample to be tested 8 by the pressing head 45 is within an appropriate range each time the pressing is performed.

[0079] In this embodiment, step S4 specifically includes:

[0080] S41. The encoder 47 monitors the number of rotations n of the rotating shaft of the pressing motor 44, and transmits the number of rotations change data to the host 2 in real time;

[0081] S42. Host 2 records the number of signal transmissions n' of the sample to be tested 8;

[0082] S43. Compare the values ​​of n and n'. When the change in the value of n is not equal to the change in the value of n', record the current value of n.

[0083] That is, the changes in the values ​​of n and n' are not equal, which includes two situations: one is that the value of n increases by one, but n' does not change; the other is that the value of n increases by one, but the value of n' increases by more than one. Both situations are abnormal. If there are multiple unequal changes in an experiment, then the values ​​of n and n' will eventually be consistent.

[0084] Therefore, the present invention only presses n, that is, pressing 3000 times means that the value of n gradually increases from 0-3000; during the 3000 pressing processes, as long as n increases by one but n' does not increase by one, the current value of n is recorded, so that the test results are more detailed, which is convenient for later analysis of product defects and optimization.

[0085] Specifically, the pressing head 45 is also provided with a pressure sensor 48. In step S3, when the pressing head 45 contacts the sample to be tested 8, the pressure signal is fed back to the host 2 through the pressure sensor 48 until the pressure value reaches a preset value and the host 2 receives the signal sent by the sample to be tested 8. Then, the lifting module 42 no longer controls the pressing head 45 to descend.

[0086] The pressure sensor 48 is used to sense the pressure applied by the sample 8 to be tested to the pressing head 45. Since the force is mutual, the force applied by the pressing head 45 to the key 81 of the sample 8 to be tested can be obtained. According to this principle, when there is a requirement for the pressing force of the pressing test, the pressing head 45 can be first lowered to the lowest position of the pressing action in this way, and then the lifting module 42 controls the pressing head 45 to descend. When the pressure value sensed by the pressure sensor 48 reaches the required pressing force, the descent can be stopped, and then the pressing action is performed. Each time the pressing head 45 descends to the lowest point for pressing, the force must meet the required pressing force.

[0087] The test selection area of ​​the present invention is usually on the same straight line. For details, please refer to Figure 4 In this case, the two buttons 81 can be pressed at the same time; for the test sample 8 with a special distribution of the test selection area, only one pressing head 45 can be used at a time - that is, a clutch 49 can be set between the eccentric piece 46 and the pressing motor 44, such as a clutch to control the action of one or two pressing heads 45 according to the actual situation, making the present invention more flexible; when the clutch 49 is used, in order to ensure the monitoring effect of the encoder 47, the encoder is preferably installed between the pressing motor 44 and the clutch 49.

[0088] Of course, in practice, if only one pressing head 45 is used, the pressing motor 44 can be controlled to move so that the other pressing head 45 is lifted, and then the driving connection between the eccentric 46 and the pressing motor 44 is disconnected by the clutch 49; and after the working pressing head 45 completes the pressing, the pressing action is kept stopped and continued to work, which can also ensure that the actions of the two pressing heads 45 are opposite to each other.

[0089] Specifically, the pressing mechanism 4 further includes a roller test module 7, which includes a test seat 71, a height adjustment module 72, a drive motor 73 and a transmission wheel 74. The height adjustment module 72 is installed at the output end of the lifting module 42, and the height adjustment module 72 is used to drive the test seat 71 to rise and fall. The transmission wheel 74 is rotatably arranged on the test seat 71, and the drive motor 73 drives the transmission wheel 74. The transmission wheel 74 is used to contact with the roller 84 of the sample 8 to be tested and drive the roller 84 to rotate;

[0090] When in use, the height adjustment module 72 controls the pressing seat 43 and the test seat 71 to be lifted, and then the height adjustment module 72 controls the test seat 71 to be lowered until the transmission wheel 74 contacts the roller 84 of the sample 8 to be tested, and then the driving motor 73 drives the transmission wheel 74 to rotate. That is, the present invention can also test the roller 84 of the sample 8 to be tested, and the test is realized by rotating the transmission wheel 74 to drive the roller 84 to rotate. The moving lengths of the transmission wheel 74 and the roller 84 are theoretically consistent, and the signal transmitted by the roller 84 to the host 2 is also proportional. Therefore, the number of turns of the transmission wheel 74 is matched with the signal received by the host 2, and the roller 84 test can be completed by comparing the two data, so that the function of the present invention is more comprehensive.

[0091] Specifically, the roller test module 7 also includes a photoelectric switch 75. A groove 76 is provided on one side of the transmission wheel 74. The output end of the photoelectric switch 75 faces the groove 76. The photoelectric switch 75 is connected to the host 2 signal, thereby achieving the effect of accurately monitoring the number of rotations of the transmission wheel 74.

[0092] In this embodiment, the fixing mechanism 3 includes a first driving module 31, a second driving module 32, two first positioning members 33 and two second positioning members 34. The first driving module 31 is used to drive the two first positioning members 33 to move closer to or farther from each other, and the second driving module 32 is used to drive the two second positioning members 34 to move closer to or farther from each other. An accommodating space for accommodating the sample 8 to be tested is formed between the two first positioning members 33 and the two second positioning members 34. A contact switch 35 is provided at one end of the first positioning members 33 and the other end of the second positioning members 34. The action modes of the fixing mechanism 3 include:

[0093] A. Drive the two first positioning members 33 to approach each other through the first driving module 31. When the two first positioning members 33 are triggered at the same time, execute step C; when the contact switch 35 of one of the first positioning members 33 is triggered, execute step B;

[0094] B. The first driving module 31 continues to move, pushing the sample 8 to be tested to move through the first positioning member 33 of the triggered contact switch 35, until the contact switches 35 of the two first positioning members 33 are triggered, and then executing step C;

[0095] C. The first driving module 31 drives the two first positioning members 33 in reverse direction away from each other by a preset distance L;

[0096] D. Drive the two second positioning members 34 to approach each other through the second driving module 32. When the two second positioning members 34 are triggered at the same time, execute step F; when the contact switch 35 of one of the second positioning members 34 is triggered, execute step E;

[0097] E. The second driving module 32 continues to move, pushing the sample 8 to be tested to move through the second positioning member 34 of the triggered contact switch 35, until the contact switches 35 of the two second positioning members 34 are triggered, and then executing step F;

[0098] F. The second driving module 32 stops moving and is locked, and the first driving module 31 drives the two first positioning members 33 to move toward each other until the contact switches 35 of the two first positioning members 33 are triggered, and then the first driving module 31 stops moving and is locked.

[0099] Specifically, in step C, the method for obtaining the preset distance L includes:

[0100] After the sample 8 to be tested is transferred to the fixing mechanism 3, the image of the sample 8 to be tested is obtained by the first recognition device 5 and transmitted to the host 2, and the host 2 measures the maximum width L of the sample 8 to be tested in the image. max With minimum width L min ;

[0101] According to L = k*(L max -L min ) calculates a preset distance L;

[0102] Wherein, k is a constant and 1≤k≤1.3.

[0103] That is, when the present invention tests the sample 8 to be tested, the staff only needs to put the sample 8 to be tested into the accommodating space, and then the fixing mechanism 3 can move automatically to achieve the effect of centering the sample 8 to be tested, ensuring that the sample 8 to be tested is located directly below the first identification device 5, and avoiding poor efficiency caused by manual adjustment of the position of the sample 8 to be tested.

[0104] In addition, since the sample to be tested 8 is not a regular shape, that is, after the first driving module 31 drives the first positioning member 33 to achieve the centering of the sample to be tested 8 in the first direction, when the second driving module 32 drives the second positioning member 34 to center the sample to be tested 8 in the second direction, the sample to be tested 8 moves in the second direction, resulting in a change in position between the two first positioning members 33, that is, the width of the sample to be tested 8 between the two first positioning members 33 will change.

[0105] Therefore, the first recognition device 5 of the present invention needs to take pictures twice: the first time is when positioning, to obtain the specific shape of the sample 8 to be tested, so as to calculate the difference between its maximum width and minimum width, and then after the sample 8 to be tested is centered in the first direction, the first positioning member 33 needs to move a preset distance to make way, so as to ensure that the sample 8 to be tested will not be squeezed by the first positioning member 33 due to posture adjustment problems during the centering of the sample 8 in the second direction.

[0106] The value of k is preferably greater than 1 because during the centering process of the sample 8 to be tested, deflection may occur, causing the actual change in the preset distance to be greater than the preset distance value.

[0107] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A multi-position pressing test device for a large-area key sample, comprising a body, a host, a fixing mechanism and a pressing mechanism, wherein the fixing mechanism is used to fix the sample to be tested, and the pressing mechanism is used to press the key of the sample to be tested, and the characteristics are: The body is provided with a first identification device, which is located directly above the fixing mechanism and is used to photograph the sample to be tested fixed by the fixing mechanism. The first identification device, the fixing mechanism and the pressing mechanism are all connected to the host signal. The following steps are also included: Fixing the sample to be tested by a fixing mechanism; Interact signals between the sample to be tested and the host; The sample to be tested on the fixing mechanism is photographed by the first recognition device to obtain an image of the sample to be tested and transmit it to the host; Analyzing the image of the sample to be tested by the host to obtain the keys of the sample to be tested; The host selects test areas for the keys of the sample to be tested according to preset rules; The host controls the pressing mechanism to move, and performs pressing tests on each test area according to a predetermined sequence and frequency; The pressing mechanism includes a translation module, a lifting module, a pressing seat, a pressing motor, a pressing head and an eccentric member. The translation module is installed on the machine body and is used to drive the pressing seat to move horizontally. The lifting module is used to drive the pressing seat to move up and down. The pressing head is movably arranged on the pressing seat. The pressing motor is installed on the pressing seat. The pressing motor is used to drive the eccentric member to rotate to drive the pressing head to move up and down. The pressing head is used to press the button of the sample to be tested. The body is also provided with a second identification device, which is used to obtain the side profile of the sample to be tested fixed by the fixing mechanism; The host performs a pressing test on each test area according to a predetermined order and frequency, specifically including: S1. Control the pressing motor to rotate so that the pressing head drops to the lowest position; S2. Obtaining a side profile image of the sample to be tested through a second recognition device, and marking the position of each test area in the side profile image; S3. The pressing seat is controlled by the translation module to move to the top of the sample to be tested, and then the lifting module controls the pressing seat to descend until the pressing head contacts the first test selection area of ​​the key of the sample to be tested, and the host receives a signal sent when the key of the sample to be tested is pressed; S4. The pressing motor rotates, and the pressing head is driven by the eccentric member to periodically press the button of the sample to be tested until the preset frequency is completed; S5. Execute step S3 until the pressing head contacts the second test area of ​​the key of the sample to be tested, and then execute step S4; after the pressing test is completed for all test areas, the pressing mechanism is reset.

2. The multi-position pressing test equipment for large-area key samples according to claim 1, characterized in that: The pressing motor is a double-headed motor, with two pressing heads and two eccentric pieces respectively, the two eccentric pieces are respectively installed at the two output ends of the pressing motor, the eccentric pieces are driven and connected with the pressing heads in a one-to-one correspondence, and the lifting and lowering actions of the two pressing heads are the same or opposite; The pressing seat is also equipped with an encoder, which is used to sense the number of rotations of the rotating shaft of the double-headed motor; in step S1, the rotation of the pressing motor is controlled by the signal fed back by the encoder to adjust the current posture of the pressing head.

3. The multi-position pressing test equipment for large-area key samples according to claim 2, characterized in that: Step S4 specifically includes: S41. The encoder monitors the number of revolutions of the rotary shaft of the pressing motor n, and transmits the number of revolutions change data to the host in real time; S42. The host records the number of signal transmissions of the sample to be tested n'; S43. Compare the values ​​of n and n'. When the change in the value of n is not equal to the change in the value of n', record the current value of n.

4. The multi-position pressing test equipment for large-area key samples according to claim 1, characterized in that: The pressing head is also provided with a pressure sensor. In step S3, when the pressing head contacts the sample to be tested, the pressure signal is fed back to the host through the pressure sensor until the pressure value reaches a preset value and the host receives the signal sent by the sample to be tested, and the lifting module no longer controls the pressing head to descend.

5. The multi-position pressing test equipment for large-area key samples according to claim 1, characterized in that: The pressing mechanism also includes a roller test module, which includes a test seat, a height adjustment module, a drive motor and a transmission wheel. The height adjustment module is installed at the output end of the lifting module, and the height adjustment module is used to drive the test seat to rise and fall. The transmission wheel is rotatably arranged on the test seat, and the drive motor drives the transmission wheel, which is used to contact the roller of the sample to be tested and drive the roller to rotate; When in use, the height adjustment module controls the pressing seat and the test seat to lift, and then controls the test seat to descend until the transmission wheel contacts the roller of the sample to be tested, and then the driving motor drives the transmission wheel to rotate.

6. The multi-position pressing test equipment for large-area key samples according to claim 5, characterized in that: The roller test module also includes a photoelectric switch. A groove is provided on one side of the transmission wheel. The output end of the photoelectric switch faces the groove. The photoelectric switch is connected to the host signal.

7. The multi-position pressing test equipment for large-area key samples according to claim 1, characterized in that: The fixing mechanism comprises a first driving module, a second driving module, two first positioning members and two second positioning members, the first driving module is used to drive the two first positioning members to move closer to or farther from each other, the second driving module is used to drive the two second positioning members to move closer to or farther from each other, an accommodating space for accommodating a sample to be tested is formed between the two first positioning members and the two second positioning members, and a contact switch is respectively provided at one end of the first positioning members and the other end of the second positioning members that are close to each other; the action modes of the fixing mechanism include: A. Drive the two first positioning members to approach each other through the first driving module. When the two first positioning members are triggered at the same time, execute step C; when the contact switch of one of the first positioning members is triggered, execute step B; B. The first driving module continues to move, pushing the sample to be tested to move through the first positioning member whose contact switch is triggered, until the contact switches of the two first positioning members are triggered, and then executing step C; C. The first driving module drives the two first positioning members in reverse direction away from each other by a preset distance L; D. driving the two second positioning members to approach each other through the second driving module, and when the two second positioning members are triggered at the same time, executing step F; when the contact switch of one of the second positioning members is triggered, executing step E; E. The second driving module continues to move, pushing the sample to be tested to move through the second positioning member whose contact switch is triggered, until the contact switches of the two second positioning members are triggered, and then executing step F; F. The second driving module stops moving and is locked, and the first driving module drives the two first positioning members to move toward each other until the contact switches of the two first positioning members are triggered, and then the first driving module stops moving and is locked.

8. The multi-position pressing test equipment for large-area key samples according to claim 7, characterized in that: In step C, the method of obtaining the preset distance L includes: After the sample to be tested is transferred to the fixing mechanism, the image of the sample to be tested is acquired by the first recognition device and transmitted to the host, and the host measures the maximum width Lmax and the minimum width Lmin of the sample to be tested in the image; Calculate the preset distance L according to L=k*(Lmax-Lmin); Wherein, k is a constant and 1≤k≤1.3.

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