A mobile phone shaft virtual distance detection device

Abstract

The utility model discloses a virtual distance detection device for a mobile phone shaft, which applies force to one side frame of a mobile phone simulation frame, and then measures the virtual distance of the shaft. The detection is fast and efficient, ensuring the quality of the mobile phone shaft before leaving the factory. It is used to detect the virtual distance of the mobile phone shaft. In the detection state, the mobile phone shaft is arranged parallel to the Z axis. It is characterized in that it includes: a mobile phone simulation frame, which includes a first frame and a second frame; a mounting plate; a product clamping fixture, which is used to clamp the first frame and the second frame of the vertically arranged mobile phone simulation frame, wherein the first frame is fixed and the position of the second frame close to the mobile phone shaft has a displacement space for displacement along the X direction; a detection base; two sets of thrust modules, wherein the X-axis servo of the thrust module drives the flexible pressure head to operate; a Z-axis upper camera assembly; and a Z-axis lower camera assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone rotation shaft detection, in particular to a mobile phone rotation shaft virtual position distance detection device. Background Art

[0002] At present, the demand for foldable screen mobile phones is growing day by day, and the required hinges are constantly updated. Major manufacturers are paying more and more attention to the quality of their hinge assembly process. After the hinge assembly is completed, it is necessary to test whether the hinge is qualified. The existing hinge inspection is carried out manually, and the inspection accuracy cannot be guaranteed, which allows unqualified products to enter the market.

[0003] During the actual test, the mobile phone hinge is used to connect the screens on both sides. During actual use, the bodies corresponding to the two screens will be subjected to different forces in the hinge area, which will cause a virtual position (not rotation) in the connection position of the mobile phone hinge. The existing technology has no reliable detection equipment for the virtual position after the hinge is connected. Therefore, it is urgently necessary to develop a detection equipment suitable for the virtual position distance detection of the mobile phone hinge. Summary of the invention

[0004] In view of the above problems, the utility model provides a mobile phone hinge virtual distance detection device, which applies force to one side of the mobile phone simulated frame to measure the hinge virtual distance. The detection is fast and efficient, ensuring the quality of the mobile phone hinge leaving the factory.

[0005] A mobile phone shaft virtual distance detection device, which is used to detect the virtual distance of the mobile phone shaft, and the mobile phone shaft is arranged parallel to the Z axis in the detection state, and is characterized in that it includes:

[0006] A simulated frame of a mobile phone, comprising a first frame and a second frame, wherein the first frame and the second frame are combined through a mobile phone shaft to form an integral structure, the integral structure is arranged vertically, the first frame and the second frame are respectively located at two sides of the mobile phone shaft, and the integral structure is arranged parallel to the Y axis in a vertical state;

[0007] Mounting plate;

[0008] A product clamping fixture, which is used to clamp the first frame and the second frame of the vertically arranged mobile phone simulated frame, wherein the first frame is fixed and the position of the second frame close to the mobile phone rotation axis has a displacement space for displacement along the X direction;

[0009] The detection base includes a base body and a detection window located in the middle area of ​​the base body, and the base body is provided with product fixtures on both sides of the Y axis corresponding to the detection window;

[0010] Two sets of thrust modules, the output end of each set of thrust modules is facing the surface of the product fixture corresponding to the other side of the screen body, and a pressure sensor and a flexible pressure head are arranged, and the X-axis servo of the thrust module pushes the flexible pressure head to operate;

[0011] A Z-axis upper camera assembly, comprising an upper camera, an upper lens, and an upper light source, wherein the upper camera, the upper lens, and the upper light source are arranged at an upper position of the product fixture, and the upper lens of the upper camera is arranged downward;

[0012] and a Z-axis lower camera assembly, which includes a lower camera, a lower lens, and a lower light source, wherein the lower camera, the lower lens, and the lower light source are arranged at the lower position of the detection window, and the lower lens of the lower camera is arranged upward and is used to detect the offset of the lower end surface corresponding to the second frame after passing through the detection window;

[0013] The detection base is arranged at the center of the mounting plate, and a group of thrust modules are respectively arranged on both sides of the detection base corresponding to the X-axis direction, and the flexible pressure heads of the two groups of thrust modules are arranged facing each other. The mounting plate is also equipped with the Z-axis upper camera assembly through an upper vertical mounting frame, and the Z-axis lower camera assembly is installed on the bottom of the mounting plate through a lower vertical mounting frame.

[0014] It is further characterized by:

[0015] The mounting plate is located at the upper part of the equipment base, a mounting cavity in the height direction is provided between the mounting plate and the lower equipment base, and the Z-axis lower camera assembly is located in the mounting cavity;

[0016] The upper part of the mounting plate is covered with a housing, the front end surface of the housing is provided with an operation port, and the area of ​​the mounting plate corresponding to the operation port is provided with a start button and an NG or pass indicator light;

[0017] Each thrust module group also includes a Y-axis direction adjustment plate at the bottom, which is fixed to the corresponding installation area of ​​the installation plate through the Y-axis long slots at both ends, so that the Y-axis position of the thrust module can be adjusted according to the set detection point of the mobile phone;

[0018] Each thrust module group also includes a Z-axis direction pressing adjustment plate, the output end of the X-axis servo is provided with a vertically arranged Z-axis direction pressing adjustment plate, the output end of the Z-axis direction pressing adjustment plate is fixedly provided with a pressure sensor, and the output end of the pressure sensor is provided with a flexible pressure head;

[0019] The first frame is provided with a plurality of positioning holes penetrating in the thickness direction and a top clamping groove, and an auxiliary connecting block is fixedly mounted on one end of the second frame away from the mobile phone rotating shaft, and the auxiliary connecting block is convenient for adaptation and fixing;

[0020] The product fixture includes a first fixed module and a second end fixed module arranged on both sides of the detection window, the first fixed module includes a forward protruding positioning rod and a clamping and fixing mechanism, the clamping and fixing mechanism includes a lifting drive end, the lifting drive end drives the clamping and fixing mechanism to tighten the clamping groove on the top of the clamping column, thereby fastening the first frame, the second end fixed module includes two vertical plates, and each vertical plate is provided with a fastening bolt, the cavity between the two vertical plates is used to place an auxiliary connecting block, and the corresponding fastening bolts press the auxiliary connecting block to complete the position fixation of the second frame.

[0021] After adopting the above technical scheme, the mobile phone shaft to be tested is assembled so that the first frame and the second frame are combined to form an integral structure through the mobile phone shaft, and then the integral structure is positioned by a product fixture, wherein the first frame is fixed and the position of the second frame close to the mobile phone shaft has a displacement space for displacement along the X direction, and then the X-axis servo of each group of thrust modules is independently driven, and then the flexible pressure head is pushed to press the second frame according to the set pressure value to the central area of ​​the height direction of the mobile phone shaft close to the mobile phone shaft, and the upper Z-axis camera assembly and the lower Z-axis camera assembly are used for photo detection to determine the value of the virtual distance of the mobile phone shaft under the set pressure. When the magnitude of any value of the virtual distance on both sides exceeds the standard value, the mobile phone shaft is judged to be unqualified, and when the virtual distance values ​​on both sides do not pass through the standard value, the mobile phone shaft is judged to be qualified; it can quickly detect the virtual distance of the mobile phone shaft by simulating the mobile phone through the mobile phone simulated frame made by simulating the mobile phone and the corresponding detection equipment, and it applies force to one side of the mobile phone simulated frame to measure the virtual distance of the shaft, and its detection is fast and efficient, ensuring the quality of the mobile phone shaft out of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the casing and the base;

[0024] Figure 3 It is a three-dimensional diagram of the thrust module of the utility model;

[0025] Figure 4 It is a three-dimensional schematic diagram of the product clamping fixture of the utility model clamping the simulated frame and the mobile phone shaft of the mobile phone;

[0026] Figure 5 This is a schematic diagram of the detection principle adopted by the utility model;

[0027] The names corresponding to the serial numbers in the figure are as follows:

[0028] Mobile phone simulation frame 10, first frame 11, positioning hole 111, top clamping groove 112, second frame 12, auxiliary connection block 13, mounting plate 20, start button 21, NG or qualified indicator light 22, product clamping fixture 30, first fixed module 31, vertical fixing plate 311, forward protruding positioning rod 312, clamping and fixing mechanism 313, lifting drive end 314, second end fixed module 32, vertical plate 321, fastening bolt 322, detection base 40, base body 41, detection window 42, Thrust module 50, pressure sensor 51, flexible pressure head 52, X-axis servo 53, Y-axis direction adjustment plate 54, Y-axis long slot hole 541, Z-axis direction pressure adjustment plate 55, Z-axis upper camera assembly 60, upper camera 61, upper lens 62, upper light source 63, upper vertical mounting frame 64, Z-axis lower camera assembly 70, lower camera 71, lower vertical mounting frame 72, equipment base 80, mounting cavity 81, housing 90, operating port 91, mobile phone hinge 100, safety grating 110. DETAILED DESCRIPTION

[0029] A mobile phone shaft virtual distance detection device, which is used to detect the virtual distance of the mobile phone shaft 100. In the detection state, the mobile phone shaft 100 is arranged parallel to the Z axis. It includes a mobile phone simulation frame 10, a mounting plate 20; a product clamp 30, a detection base 40, two sets of thrust modules 50, a Z-axis upper camera assembly 60, and a Z-axis lower camera assembly 70;

[0030] The mobile phone simulation frame 10 includes a first frame 11 and a second frame 12. The first frame 11 and the second frame 12 are combined through the mobile phone shaft 100 to form an overall structure. The overall structure is arranged vertically. The first frame 11 and the second frame 12 are respectively located at two sides of the mobile phone shaft 100. The overall structure is arranged parallel to the Y axis in the vertical state.

[0031] The product clamp 30 is used to clamp the first frame 11 and the second frame 12 of the vertically arranged mobile phone simulated frame 10, wherein the first frame 11 is fixed and the position of the second frame 12 close to the mobile phone rotation axis 100 has a displacement space for displacement along the X direction;

[0032] The detection base 40 includes a base body 41 and a detection window 42 located in the middle area of ​​the base body. The detection window 42 is covered with transparent glass. The base body 41 is provided with product fixtures 30 on both sides of the Y-axis corresponding to the detection window 42.

[0033] The output end of each thrust module 50 is facing the surface of the product fixture corresponding to the other side of the screen, and a pressure sensor 51 and a flexible pressure head 52 are arranged. The X-axis servo 53 of the thrust module pushes the flexible pressure head to operate. The X-axis servo 53 is controlled by a screw module, which has high precision and good stability. The pressure sensor accuracy of the measured force value is ±0.3% FS, and the test data is accurate and reliable.

[0034] The Z-axis upper camera assembly 60 includes an upper camera 61, an upper lens 62, and an upper light source 63. The upper camera 61, the upper lens 62, and the upper light source 63 are arranged at the upper position of the product fixture 30, and the upper lens 62 of the upper camera 61 is arranged downward;

[0035] The Z-axis lower camera assembly 70 includes a lower camera 71, a lower lens 72, and a lower light source. The lower camera 71, the lower lens (blocked in the figure, belonging to a mature arrangement technology), and the lower light source (blocked in the figure, belonging to a mature arrangement technology) are arranged at the lower position of the detection window 42. The lower lens of the lower camera 71 is arranged upward and is used to detect the offset of the lower end surface corresponding to the second frame 12 after passing through the detection window 42.

[0036] The detection base 40 is arranged at the center position of the mounting plate 20, and a group of thrust modules 50 are respectively arranged on both sides of the detection base 40 corresponding to the X-axis direction. The flexible pressure heads 52 of the two groups of thrust modules 50 are arranged facing each other. The mounting plate 20 is also equipped with a Z-axis upper camera assembly 60 through an upper vertical mounting frame 64, and a Z-axis lower camera assembly 70 is installed at the bottom of the mounting plate 20 through a lower vertical mounting frame 72.

[0037] In a specific implementation, it also includes a base 80, a mounting plate 10 is located on the upper part of the device base 80, a mounting cavity 81 in the height direction is provided between the mounting plate 10 and the lower device base 80, and the Z-axis lower camera assembly 70 is located in the mounting cavity 81;

[0038] The upper part of the mounting plate 20 is covered with a housing 90, and the front end surface of the housing 90 is provided with an operation port 91. The mounting plate 20 is provided with a start button 21 and an NG or pass indicator light 22 at a position corresponding to the operation port 91;

[0039] Safety gratings 110 are also provided on both sides of the operation port 91;

[0040] Each thrust module 50 further includes a Y-axis direction adjustment plate 54 at the bottom, and the Y-axis direction adjustment plate 54 is fixed to the corresponding installation area of ​​the installation plate 20 through the Y-axis long slots 541 at both ends, so that the Y-axis position of the thrust module 50 can be adjusted according to the set detection point of the mobile phone;

[0041] Each thrust module 50 further includes a Z-axis direction pressing adjustment plate 55, and a vertically arranged Z-axis direction pressing adjustment plate 55 is provided at the output end of the X-axis servo 53. A pressure sensor 51 is fixedly provided at the output end of the Z-axis direction pressing adjustment plate 55, and a flexible pressure head 52 is provided at the output end of the pressure sensor 51; in specific implementation, the flexible pressure head 52 is specifically a POM pressure head;

[0042] The central area of ​​the first frame 11 is provided with four positioning holes 111 penetrating in the thickness direction and a top clamping groove 112. An auxiliary connecting block 13 is fixedly mounted on one end of the second frame 12 away from the mobile phone shaft 100. The auxiliary connecting block 13 is convenient for adaptation and fixing.

[0043] The product clamp 30 includes a first fixed module 31 and a second end fixed module 32 arranged on both sides of the detection window. The first fixed module 31 includes a vertical fixed plate 311, a forward protruding positioning rod 312, and a clamping and fixing mechanism 313. The front surface of the vertical fixed plate 311 is provided with four corresponding forward protruding positioning rods 312. The upper part of the vertical fixed plate 311 is provided with a clamping and fixing mechanism 313. The clamping and fixing mechanism 313 includes a lifting drive end 314. The lifting drive end 314 is provided with a spring. When the mobile phone simulation frame needs to be installed, The clamping and fixing mechanism 313 is manually driven to be lifted. After the mobile phone simulated frame 10 is sleeved onto the corresponding positioning rod 312, the clamping and fixing mechanism is released, so that the clamping and fixing mechanism 313 fastens the clamping groove 112 at the top of the clamping column, thereby fastening the first frame 11. The second end fixing module 32 includes two vertical plates 321, and each vertical plate is provided with a fastening bolt 322. The cavity between the two vertical plates 321 is used to place the auxiliary connection block 13. The corresponding fastening bolts 322 press the auxiliary connection block 13 to complete the position fixation of the second frame 12.

[0044] The end of the fastening bolt 322 used for pressing the auxiliary connection block is a flat end, ensuring reliable fastening and pressing.

[0045] Its working principle can be seen in Figure 5 , the phone simulates the frame 10 in the 180° unfolded state Figure 5As shown, the X-axis servos 53 on both sides independently and successively act to apply thrusts Fn1 and Fn2 to the center position of the height direction of one side of the second frame 12 close to the mobile phone shaft 100. The above two sets of values ​​are usually the same values, which are reliably set according to the specific performance of the mobile phone shaft and the specific weight and size of the mobile phone simulation frame 10. The upper Z-axis camera assembly and the lower Z-axis camera assembly are used for photo detection. After CCD visual detection, the forward displacement △X of the second frame is subjected to force. The judgment standard in the specific embodiment is A≤0.1mm and B≤0.1mm. The mobile phone shaft to be detected is a qualified product, otherwise it is a failed product. When a failed product appears, the NG or qualified indicator light and the top alarm light alarm. Manual intervention is performed to determine whether it is a product failure or a test failure. If it is a test failure, CCD visual detection is performed again. If it is a product failure, the product is discarded and the next mobile phone shaft test is performed.

[0046] The mobile phone shaft to be tested is assembled so that the first frame and the second frame are combined to form an integral structure through the mobile phone shaft, and then the integral structure is positioned by a product fixture, wherein the first frame is fixed and the position of the second frame close to the mobile phone shaft has a displacement space for displacement along the X direction, and then the X-axis servo of each thrust module group is independently driven, and then the flexible pressure head is pushed to press the second frame according to the set pressure value to the central area of ​​the height direction of the mobile phone shaft close to the mobile phone shaft, and the upper Z-axis camera assembly and the lower Z-axis camera assembly are used for photo detection to determine the value of the virtual distance of the mobile phone shaft under the set pressure. When the magnitude of any value of the virtual distance on both sides exceeds the standard value, the mobile phone shaft is judged to be unqualified, and when the virtual distance values ​​on both sides do not pass through the standard value, the mobile phone shaft is judged to be qualified; the mobile phone simulated frame made by simulating a mobile phone and the corresponding detection equipment can quickly detect the virtual distance of the mobile phone shaft, and force is applied to one side of the mobile phone simulated frame to measure the virtual distance of the shaft. The detection is fast and efficient, ensuring the quality of the mobile phone shaft leaving the factory.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mobile phone shaft virtual distance detection device, which is used to detect the virtual distance of the mobile phone shaft. In the detection state, the mobile phone shaft is arranged parallel to the Z axis, and is characterized in that: It includes: A simulated frame of a mobile phone, comprising a first frame and a second frame, wherein the first frame and the second frame are combined through a mobile phone shaft to form an integral structure, the integral structure is arranged vertically, the first frame and the second frame are respectively located at two sides of the mobile phone shaft, and the integral structure is arranged parallel to the Y axis in a vertical state; Mounting plate; A product clamping fixture, which is used to clamp the first frame and the second frame of the vertically arranged mobile phone simulated frame, wherein the first frame is fixed and the position of the second frame close to the mobile phone rotation axis has a displacement space for displacement along the X direction; The detection base includes a base body and a detection window located in the middle area of ​​the base body, and the base body is provided with product fixtures on both sides of the Y axis corresponding to the detection window; Two sets of thrust modules, the output end of each set of thrust modules is facing the surface of the product fixture corresponding to the other side of the screen body, and a pressure sensor and a flexible pressure head are arranged, and the X-axis servo of the thrust module pushes the flexible pressure head to operate; A Z-axis upper camera assembly, comprising an upper camera, an upper lens, and an upper light source, wherein the upper camera, the upper lens, and the upper light source are arranged at an upper position of the product fixture, and the upper lens of the upper camera is arranged downward; and a Z-axis lower camera assembly, which includes a lower camera, a lower lens, and a lower light source, wherein the lower camera, the lower lens, and the lower light source are arranged at the lower position of the detection window, and the lower lens of the lower camera is arranged upward and is used to detect the offset of the lower end surface corresponding to the second frame after passing through the detection window; The detection base is arranged at the center of the mounting plate, and a group of thrust modules are respectively arranged on both sides of the detection base corresponding to the X-axis direction, and the flexible pressure heads of the two groups of thrust modules are arranged facing each other. The mounting plate is also equipped with the Z-axis upper camera assembly through an upper vertical mounting frame, and the Z-axis lower camera assembly is installed on the bottom of the mounting plate through a lower vertical mounting frame.

2. A mobile phone shaft virtual distance detection device according to claim 1, characterized in that: The mounting plate is located at the upper part of the equipment base, and a mounting cavity in the height direction is arranged between the mounting plate and the lower equipment base, and the Z-axis lower camera assembly is located in the mounting cavity.

3. A mobile phone shaft virtual distance detection device according to claim 2, characterized in that: The upper part of the mounting plate is covered with a housing, the front end surface of the housing is provided with an operation port, and the area of ​​the mounting plate corresponding to the operation port is provided with a start button and an NG or pass indicator light.

4. The mobile phone shaft virtual distance detection device according to claim 1, characterized in that: Each thrust module group also includes a Y-axis direction adjustment plate at the bottom, and the Y-axis direction adjustment plate is fixedly mounted in the corresponding installation area of ​​the installation plate through the Y-axis long slot holes at both ends.

5. The mobile phone shaft virtual distance detection device according to claim 4, characterized in that: Each thrust module group also includes a Z-axis direction pressure adjustment plate, the output end of the X-axis servo is provided with a vertically arranged Z-axis direction pressure adjustment plate, the output end of the Z-axis direction pressure adjustment plate is fixedly provided with a pressure sensor, and the output end of the pressure sensor is provided with a flexible pressure head.

6. The mobile phone shaft virtual distance detection device according to claim 1, characterized in that: The first frame is provided with a plurality of positioning holes penetrating in the thickness direction and a top clamping groove, and an auxiliary connecting block is fixedly mounted on one end of the second frame away from the mobile phone rotation axis, and the auxiliary connecting block is convenient for adaptation and fixation.

7. A mobile phone shaft virtual distance detection device according to claim 6, characterized in that: The product fixture includes a first fixed module and a second end fixed module arranged on both sides of the detection window, the first fixed module includes a forward protruding positioning rod and a clamping and fixing mechanism, the clamping and fixing mechanism includes a lifting drive end, the lifting drive end drives the clamping and fixing mechanism to tighten the clamping groove on the top of the clamping column, thereby fastening the first frame, the second end fixed module includes two vertical plates, and each vertical plate is provided with a fastening bolt, the cavity between the two vertical plates is used to place an auxiliary connecting block, and the corresponding fastening bolts press the auxiliary connecting block to complete the position fixation of the second frame.

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