Button detection device

Abstract

The utility model belongs to the technical field of button detection, and particularly relates to a button detection device, which comprises a first driving part, a pressing part and a first detection part, and is characterized in that the first driving part is provided with a driving end; the pressing part is arranged at the driving end in a sliding manner, so that the pressing part has an abutting state of abutting against the button and a separating state of separating from the button, and the first detection part is configured to detect the magnitude of pressing force applied by the pressing part to the button when the driving end is close to the button and to detect the magnitude of pressing force applied by the pressing part to the button when the driving end is far away from the button. The pressing part can be kept abutting against the first detection part under the pushing of the resilience force of the button so as to detect the resilience force. According to the technical scheme, the pressing force and the resilience force are detected through the first detection part, an additional detection structure does not need to be arranged, namely, the additional detection structure does not need to be calibrated, so that the detection cost can be saved, and the detection efficiency can also be improved.

Description

Technical Field

[0001] This utility model relates to the field of button detection technology, and in particular to a button detection device. Background Technology

[0002] A button is a common control component used to connect or disconnect control circuits. After assembly, the absolute difference between the pressing force and the rebound force of the button needs to be tested. This difference reflects the button's energy loss, and a difference of 50 ± 15% ensures the button's stability during long-term use. If the difference is too small, it indicates that the spring or other elastic material used in the button is too inefficient, easily leading to excessively fast or forceful rebound. If the difference is too large, it indicates that the spring or other elastic material used in the button is aging or poorly designed, resulting in insufficient rebound.

[0003] Currently, when detecting the difference between pressing force and rebound force, the pressing force is usually detected by installing a force sensor under the button and a displacement sensor near the button spring to detect the rebound force. The two sensors require corresponding signal processing modules and supporting circuits, which is not only costly, but also requires the two sensors to be calibrated separately, resulting in reduced detection efficiency.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a button detection device to reduce the cost of button detection and improve the efficiency of button detection.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A button detection device for detecting buttons, comprising:

[0008] The first driving unit has a driving end disposed opposite to the button, and the driving end can move closer to or further away from the button;

[0009] The pressing part is slidably disposed on the driving end so that the pressing part has an abutting state that abuts against the button and a disengaged state that is separated from the button;

[0010] A first detection unit is disposed at the drive end and spaced apart from the pressing part, and is capable of contacting the pressing part when the pressing part is in a contacting state and separating from the pressing part when the pressing part is in a separating state;

[0011] The first detection unit is configured to detect the magnitude of the pressing force applied by the pressing part to the button when the driving end is close to the button, and to detect the magnitude of the rebound force when the driving end is away from the button, wherein the pressing part is able to remain in contact with the first detection unit under the push of the button's rebound force.

[0012] Preferably, the driving end is positioned vertically above the button;

[0013] The pressing part can separate from the first detection part under its own weight.

[0014] Preferably, the driving end is provided with a base, and the base is arranged in a horizontal direction;

[0015] The pressing part includes a pressing rod and a limiting block disposed on the pressing rod. The pressing rod passes through the base in a vertical direction, and the limiting block is configured to prevent the pressing rod from disengaging from the base.

[0016] Preferably, the first detection unit includes:

[0017] Two positioning blocks are spaced apart at the drive end along the moving direction of the drive end;

[0018] The guide rod is connected to the two positioning blocks at both ends;

[0019] A pressure sensing element is positioned opposite the end of the pressing part that is away from the button, and the pressure sensing element is slidably mounted on the guide rod.

[0020] A buffer is disposed between the positioning block and the pressure detection element.

[0021] Preferably, the button detection device further includes:

[0022] A support portion is configured to support the button, and the support portion faces the pressing portion and extends partially to the outside of the pressing portion;

[0023] The positioning part is rotatably mounted on the bearing part and has a positioning groove adapted to the button, the positioning groove being directly opposite the pressing part;

[0024] The moving part is configured to move the button along the support part into the positioning groove.

[0025] Preferably, the moving part includes a moving member disposed on the bearing part and a pushing member disposed on the moving end of the moving member, the pushing member having a pushing groove facing the button, the pushing groove being adapted and engaged with the button.

[0026] Preferably, the button has an independent circuit inside, and terminals are connected to both ends of the independent circuit;

[0027] The button detection device further includes a second detection unit that is communicatively connected to the first detection unit. The second detection unit can be connected to two terminals to form a detection loop for detecting the continuity of the independent circuit.

[0028] Preferably, the second detection unit includes:

[0029] The detection mechanism is used to detect the continuity of the independent circuit and has two pins, which are arranged one-to-one with the two terminals.

[0030] A driving element for driving the two pins closer to or further away from the two terminals.

[0031] Preferably, the button detection device further includes a third detection unit for detecting the motion state of the drive end.

[0032] Preferably, the third detection unit includes a first position sensor, an origin position sensor, and a second position sensor. The first position sensor and the second position sensor are respectively disposed on both sides of the origin position sensor. The origin position sensor is used to detect whether the drive end is at the origin position, and the first position sensor and the second position sensor are used to detect whether the drive end exceeds the running stroke.

[0033] The beneficial effects of this utility model are:

[0034] The button detection device of this utility model, when the driving end of the first driving unit approaches the button, can drive the pressing part and the first detection part to approach the button, and can put the button in a contact state. As the driving end continues to move, the pressing part can contact the first detection part. Under the joint action of the driving end and the first detection part, the button can be pressed. At this time, the first detection part can detect the magnitude of the pressing force applied by the pressing part to the button. When the driving end moves away from the button, the pressing part can remain in contact with the first detection part under the push of the button's rebound force, so that the first detection part can detect the button's rebound force. With this setting, the pressing force and rebound force can be detected by the first detection part without the need for additional detection structure, that is, without the need for calibration of additional detection structure, thereby saving detection costs and improving detection efficiency. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the button detection device in an embodiment of this utility model;

[0036] Figure 2This is a schematic diagram of the structure of the first driving part, the pressing part, and the first detection part in an embodiment of this utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the bearing part, the positioning part, and the moving part in an embodiment of this utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the bearing part and the positioning part in an embodiment of this utility model;

[0039] Figure 5 This is a structural schematic diagram of the supporting part and the moving part in an embodiment of this utility model.

[0040] In the picture:

[0041] 100. Button; 110. Terminal;

[0042] 1. First drive unit; 11. Drive end; 12. Base;

[0043] 2. Pressing part; 21. Pressing rod; 22. Limiting block;

[0044] 3. First inspection unit; 31. Positioning block; 32. Guide rod; 33. Pressure testing component;

[0045] 4. Bearing part; 5. Positioning part; 51. Positioning groove;

[0046] 6. Moving part; 61. Moving component; 62. Pushing component; 621. Pushing groove;

[0047] 7. Ejector pin; 8. Second drive unit;

[0048] 9. Third detection unit; 91. First position sensor; 92. Origin position sensor; 93. Second position sensor. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0050] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] This embodiment proposes a button detection device for detecting a button 100. The device includes a first driving part 1, a pressing part 2, and a first detection part 3. The first driving part 1 has a driving end 11 disposed opposite to the button 100, and the driving end 11 can approach or move away from the button 100. The pressing part 2 is slidably disposed on the driving end 11, so that the pressing part 2 has an contact state with the button 100 and a separation state from the button 100. The first detection part 3 is disposed on the driving end 11 and spaced apart from the pressing part 2, and can contact the pressing part 2 when it is in the contact state, and separate from the pressing part 2 when it is in the separation state. The first detection part 3 is configured to detect the magnitude of the pressing force applied by the pressing part 2 to the button 100 when the driving end 11 approaches the button 100, and to remain in contact with the first detection part 3 under the push of the rebound force of the button 100 when the driving end 11 moves away from the button 100, thereby detecting the magnitude of the rebound force.

[0054] It is understandable that when the driving end 11 of the first driving unit 1 approaches the button 100, it can drive the pressing part 2 and the first detection part 3 to approach the button 100, and put the button 100 in a contact state. As the driving end 11 continues to move, the pressing part 2 can contact the first detection part 3. Under the combined action of the driving end 11 and the first detection part 3, the button 100 can be pressed. At this time, the first detection part 3 can detect the magnitude of the pressing force applied by the pressing part 2 to the button 100. When the driving end 11 moves away from the button 100, the pressing part 2 can remain in contact with the first detection part 3 under the push of the rebound force of the button 100, so that the first detection part 3 can detect the rebound force of the button 100. With this setting, the pressing force and rebound force can be detected by the first detection part 3 without the need for additional detection structures. That is, there is no need to calibrate additional detection structures, thereby saving detection costs and improving detection efficiency.

[0055] Preferably, the driving end 11 is vertically positioned above the button 100; the pressing part 2 can separate from the first detection part 3 under its own weight. It is understood that before detecting the button 100, the pressing part 2 is in a separated state and, under its own weight, is at one end of its sliding stroke, denoted as the initial position. Under the action of the first driving part 1, the driving end 11 is moved closer to the button 100, thereby switching the pressing part 2 from the separated state to the contact state. Under the reverse action of the button 100, the pressing part 2 is pushed upwards, thus overcoming its own weight and allowing it to slide from the initial position to the other end of its sliding stroke, denoted as the final position. After detecting the pressing force and rebound force, the pressing part 2 can return to its initial position from the final position under its own weight to ensure the accuracy of the next detection.

[0056] Specifically, the first driving part 1 is preferably a linear driving structure such as an electric cylinder. The driving end 11 can move vertically under the action of the electric cylinder. The driving end 11 is provided with a base 12, which is arranged horizontally. The pressing part 2 includes a pressing rod 21 and a limiting block 22 provided on the pressing rod 21. The pressing rod 21 passes through the base 12 vertically, and the limiting block 22 is configured to prevent the pressing rod 21 from disengaging from the base 12. It can be understood that the base 12 is provided with a through hole adapted to the pressing rod 21. When the pressing rod 21 is slidably disposed in the through hole, the two ends of its sliding stroke are respectively limited by the limiting block 22 and the first detection part 3. The limiting block 22 is preferably disposed at the end of the pressing rod 21 away from the button 100.

[0057] In some other feasible embodiments, the drive end 11 and the button 100 can be horizontally arranged. Compared with a vertical arrangement, a reset structure such as a spring needs to be added between the limiting block 22 and the base 12 so that when the pressing rod 21 is in the separated state, it can move from the end position to the initial position. The elasticity of the reset structure should be less than that of the spring in the button 100.

[0058] In this embodiment, the first detection unit 3 includes two positioning blocks 31, a guide rod 32, a pressure detection element 33, and a buffer. The two positioning blocks 31 are spaced apart on the drive end 11 along the moving direction of the drive end 11. The two ends of the guide rod 32 are respectively connected to the two positioning blocks 31. The pressure detection element 33 is directly opposite to the end of the pressing part 2 away from the button 100, and the pressure detection element 33 is slidably disposed on the guide rod 32. The buffer is disposed between the positioning blocks 31 and the pressure detection element 33. It can be understood that when the pressing part 2 presses the button 100, the buffer can provide cushioning, thereby avoiding overload of the pressure detection element 33. During the rebound process of the button 100, the buffer can keep the pressure detection element 33 in contact with the pressing rod 21 to ensure continuous measurement of the rebound force. The buffer is preferably a buffer structure such as a spring, and the stiffness of the spring is selected according to the range of pressing force and the rebound characteristics of the button 100 to avoid excessive stiffness leading to measurement lag. The specific selection of the spring stiffness is not described here.

[0059] Furthermore, the pressure detection element 33 is preferably a pressure detection structure such as a strain gauge or pressure sensor in the prior art, which will not be described in detail here.

[0060] In this embodiment, the button detection device further includes a support part 4, a positioning part 5, and a moving part 6. The support part 4 is configured to support the button 100 and is directly opposite to the pressing part 2, and extends partially to the outside of the pressing part 2. The positioning part 5 is rotatably disposed on the support part 4 and has a positioning groove 51 adapted to the button 100, which is directly opposite to the pressing part 2. The moving part 6 is configured to move the button 100 along the support part 4 into the positioning groove 51. It is understandable that the support part 4 is elongated, with one end extending to the position directly opposite the pressing part 2, referred to as the detection end, and the positioning part 5 is located at the detection end. The other end of the support part 4 extends to the outside of the pressing part 2, referred to as the loading and unloading end. Before testing, the operator places the button 100 to be tested on the support part 4. Then, under the action of the moving part 6, the button 100 to be tested can be moved along the support part 4 from the loading and unloading end to the detection end, and the button 100 is placed in the positioning groove 51, completing the loading. After testing, under the action of the moving part 6, the button 100 can be moved from the detection end to the loading and unloading end, completing the unloading. This setting can improve the loading and unloading efficiency and also ensure that the button 100 moves into place, thereby ensuring the accuracy of the test.

[0061] The moving part 6 includes a moving member 61 disposed on the supporting part 4 and a pushing member 62 disposed on the moving end of the moving member 61. The pushing member 62 has a pushing groove 621 facing the button 100, and the pushing groove 621 is adapted to engage with the button 100. It is understood that the moving member 61 is preferably a reciprocating linear drive structure such as a cylinder in the prior art. Under the action of the cylinder, the button 100 can be controlled to reciprocate between the loading / unloading end and the detection end to improve the loading / unloading efficiency. Furthermore, under the action of the pushing groove 621, the stability of the button 100 during the movement process can be ensured to guarantee the detection quality.

[0062] In this embodiment, the button 100 has an independent circuit inside, and terminals 110 are connected to both ends of the independent circuit. The button detection device also includes a second detection unit that is communicatively connected to the first detection unit 3. The second detection unit can be connected to the two terminals 110 to form a detection loop for detecting the continuity of the independent circuit. It is understood that when the pressing part 2 presses the button 100, it can make the independent circuit conduct, thereby enabling the second detection unit to detect the conduction signal and record the corresponding pressing force. When the button 100 rebounds, it can make the independent circuit disconnect, thereby enabling the second detection unit to detect the disconnection signal and record the corresponding rebound force. Subsequently, under the action of the second detection unit, the absolute difference between the pressing force and the rebound force is calculated to facilitate the operator's judgment of the quality of the button 100. The second detection unit is preferably a PIC controller (Programmable Interrupt Controller) from the prior art.

[0063] In addition, the second detection unit has two pins 7, and two terminals 110 are respectively provided at both ends of the independent circuit. The two pins 7 can be connected to the two terminals 110 respectively. In order to facilitate the connection of the pins 7 to the terminals 110, the button detection device also includes a second driving unit 8, which is used to drive the two pins 7 to move closer to or further away from the corresponding terminals 110 at the same time. It is understandable that when the button 100 is placed in the push groove 621, the terminal 110 is positioned facing the opening of the push groove 621 so that after the button 100 is moved into place, it can directly face the two ejector pins 7, so as to connect the second detection unit to the independent circuit. Specifically, the second drive unit 8 is preferably a reciprocating linear drive structure such as a cylinder in the prior art. After the button 100 is moved into place, under the action of the second drive unit 8, the ejector pins 7 can be driven to move closer to the terminal 110 to form a detection circuit. After the detection is completed, under the action of the second drive unit 8, the ejector pins 7 can be driven away from the terminal 110 to facilitate the unloading of the button 100. With this setting, the whole process does not require manual intervention, thereby further improving the detection efficiency.

[0064] In this embodiment, the button detection device further includes a third detection unit 9, which is used to detect the movement state of the drive end 11. It is understood that under the action of the third detection unit 9, the position of the drive end 11 can be monitored, thereby improving the positional accuracy of the drive end 11 and ensuring detection accuracy. Specifically, the third detection unit 9 includes a first position sensor 91, an origin position sensor 92, and a second position sensor 93. The first position sensor 91 and the second position sensor 93 are respectively disposed on both sides of the origin position sensor 92, and the origin position sensor 92 is used to detect whether the drive end 11 is at the origin position, while the first position sensor 91 and the second position sensor 93 are used to detect whether the drive end 11 exceeds its travel distance. Understandably, before testing button 100, it should be ensured that the drive end 11 is in the origin position. If it is not in the origin position, the origin position sensor 92 will issue an alarm, and the operator needs to reset the drive end 11 to reduce detection errors and improve detection quality. During the detection process, if the drive end 11 moves to the position of the first position sensor 91 or the second position sensor 93, the first position sensor 91 or the second position sensor 93 will issue an alarm, and the operator will stop the machine to prevent the drive end 11 from exceeding its travel range, thereby ensuring the safety of the detection. The first position sensor 91, the origin position sensor 92, and the second position sensor 93 are preferably photoelectric switches or similar devices found in the prior art, and no specific limitations are imposed here.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A button detection device for detecting a button (100), characterized in that The button detection device comprises: A first driving part (1) having a driving end (11) arranged opposite to the button (100), and the driving end (11) can be close to or away from the button (100); A pressing part (2) slidingly arranged on the driving end (11), so that the pressing part (2) has an abutting state of abutting with the button (100) and a separation state of separating from the button (100); A first detection part (3) arranged on the driving end (11) and spaced apart from the pressing part (2), and can abut with the pressing part (2) when the pressing part (2) is in the abutting state, and can separate from the pressing part (2) when the pressing part (2) is in the separation state; Wherein, the first detection part (3) is configured to detect the pressing force applied by the pressing part (2) on the button (100) when the driving end (11) is close to the button (100), and the pressing part (2) can abut with the first detection part (3) under the rebound force of the button (100) when the driving end (11) is away from the button (100), so as to detect the rebound force.

2. The button detection apparatus according to claim 1, characterized by The driving end (11) is arranged above the button (100) in the vertical direction; The pressing part (2) can separate from the first detection part (3) under the action of its own gravity.

3. The button detection apparatus according to claim 2, characterized by The driving end (11) is provided with a base (12) arranged in the horizontal direction; The pressing part (2) comprises a pressing rod (21) and a limiting block (22) arranged on the pressing rod (21), the pressing rod (21) penetrates the base (12) in the vertical direction, and the limiting block (22) is configured to limit the pressing rod (21) from separating from the base (12).

4. The button detection apparatus according to claim 1, characterized by The first detection part (3) comprises: Two positioning blocks (31) spaced apart from each other along the moving direction of the driving end (11); A guide rod (32) having two ends connected with the two positioning blocks (31) respectively; A pressure detection piece (33) opposite to one end of the pressing part (2) away from the button (100), and the pressure detection piece (33) is slidingly arranged on the guide rod (32); A buffer piece arranged between the positioning block (31) and the pressure detection piece (33).

5. The button detection apparatus according to claim 1, wherein The button detection device further comprises: A bearing part (4) configured to bear the button (100), and the bearing part (4) is opposite to the pressing part (2) and partially extends to the outside of the pressing part (2); A positioning part (5) rotationally arranged on the bearing part (4) and having a positioning groove (51) matched with the button (100), the positioning groove (51) is opposite to the pressing part (2); A moving part (6) configured to move the button (100) along the bearing part (4) into the positioning groove (51).

6. The button detection apparatus according to claim 5, wherein The moving part (6) comprises a moving piece (61) arranged on the bearing part (4) and a pushing piece (62) arranged on the moving end of the moving piece (61), the pushing piece (62) has a pushing groove (621) facing the button (100), and the pushing groove (621) is adapted to be clamped with the button (100).

7. The button detection apparatus of claim 1, wherein The button (100) has an independent circuit inside, and two terminals (110) are respectively connected to two ends of the independent circuit; The button detection device further comprises a second detection part in communication connection with the first detection part (3), and the second detection part can be connected with the two terminals (110) to form a detection loop for detecting the on-off state of the independent circuit.

8. The button detection apparatus according to claim 7, wherein The second detection part has two thimbles (7), and the independent circuit has two terminals (110) arranged at two ends thereof; The button detection device further comprises a second driving part (8) for driving the two thimbles (7) to approach or move away from the corresponding terminals (110) at the same time.

9. The button detection apparatus of claim 1, wherein The button detection device further comprises a third detection part (9) for detecting the movement state of the driving end (11).

10. The button detection apparatus according to claim 9, wherein The third detection part (9) comprises a first position sensor (91), an origin position sensor (92) and a second position sensor (93), the first position sensor (91) and the second position sensor (93) are respectively arranged on the two sides of the origin position sensor (92), and the origin position sensor (92) is used for detecting whether the driving end (11) is at the origin position, and the first position sensor (91) and the second position sensor (93) are used for detecting whether the driving end (11) exceeds the running stroke.

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