Fingerprint module calibration device and terminal test equipment

Abstract

The utility model discloses a fingerprint module calibration device and terminal test equipment, the fingerprint module calibration device comprises a test assembly, a first motion module and a second motion module, the test assembly comprises a fixed plate and three calibration modules installed on the fixed plate, the three calibration modules are arranged at intervals along a first direction, and the first motion module and the second motion module are arranged on the fixed plate. The moving end of the first movement module is connected with the second movement module so as to drive the second movement module to move in the first direction, the moving end of the second movement module is connected with the fixing plate so as to drive the fixing plate to move in the second direction, and the calibration module gets close to or away from the fingerprint module in the second direction. The fingerprint module calibration device provided by the utility model has the advantages of small space required for calibration of the fingerprint module and high calibration efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a fingerprint module calibration device and terminal testing equipment. Background Art

[0002] Terminals with fingerprint functions, such as mobile phones, need to calibrate the fingerprint module before leaving the factory. Three different calibration blocks are required for calibrating the fingerprint module, namely the black calibration block, the flesh-colored calibration block, and the 3D stripe calibration block. Each calibration block needs to be pressed onto the fingerprint module separately and in sequence to complete the calibration and testing. However, the fingerprint module calibration device of the related art usually calibrates the fingerprint module three times at different positions, resulting in a large space required for the calibration of the fingerprint module. In addition, during the calibration process, the movement of the terminal also causes the fingerprint module calibration device to take a long time to calibrate the fingerprint module, which is inefficient. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model provides a fingerprint module calibration device, which has the advantages of small space required for calibrating the fingerprint module and high calibration efficiency.

[0005] The embodiment of the utility model further provides a terminal testing device.

[0006] The fingerprint module calibration device of the embodiment of the utility model includes a test component, a first motion module and a second motion module. The test component includes a fixed plate and three calibration modules installed on the fixed plate, and the three calibration modules are arranged at intervals along a first direction; the moving end of the first motion module is connected to the second motion module to facilitate driving the second motion module to move along the first direction, the moving end of the second motion module is connected to the fixed plate to facilitate driving the fixed plate to move along the second direction, and the calibration module approaches and moves away from the fingerprint module along the second direction.

[0007] According to the fingerprint module calibration device of the embodiment of the utility model, the first motion module can drive the second motion module and the test component to move along the first direction as a whole, so that the three calibration modules in the test component can be moved to the same calibration position in sequence. Moreover, when any calibration module is located at the calibration position, the second motion module can drive the test component as a whole to be close to the fingerprint module, so that the calibration module located at the calibration position is in contact with the fingerprint module to achieve calibration and testing of the fingerprint module. That is, there is no need to move the position of the fingerprint module, and the calibration and testing of the fingerprint module can be achieved in sequence through the three calibration modules. The space required for the calibration of the fingerprint module is small, and the calibration efficiency is high.

[0008] In some embodiments, the three calibration modules each include an elastic buffer component, a pressure sensor, and a calibration block sequentially connected along the second direction, the elastic buffer component is connected to the moving end of the second motion module, and the calibration block is used to fit the fingerprint module;

[0009] The calibration blocks in the three calibration modules are respectively a flesh-colored calibration block, a black calibration block and a 3D stripe calibration block.

[0010] In some embodiments, at least two of the calibration modules further include a driving device, wherein the driving device is mounted on the fixed plate, and a moving end of the driving device is connected to the elastic buffer component to facilitate driving the elastic buffer component to reciprocate along the second direction.

[0011] In some embodiments, the driving device includes a cylinder, any two of the calibration modules include the cylinder, and the remaining one of the calibration modules includes a first connecting plate, and the first end and the second end of the first connecting plate opposite to each other along the second direction are respectively connected to the fixing plate and the elastic buffer assembly.

[0012] In some embodiments, the elastic buffer assembly includes a second connecting plate, a first mounting plate, a second mounting plate, a guide shaft and an elastic member, the second connecting plate, the first mounting plate and the second mounting plate are arranged in sequence along the second direction, the first mounting plate is connected to the moving end of the second motion module, the first mounting plate is provided with a first guide hole penetrating the first mounting plate along the second direction, the pressure sensor is arranged on the side of the second mounting plate away from the first mounting plate; the guide shaft extends along the second direction and slides in the first guide hole, the first end of the guide shaft is connected to the second connecting plate, and the second end of the guide shaft is connected to the second mounting plate; the elastic member is connected between the first mounting plate and the second mounting plate.

[0013] In some embodiments, the elastic buffer assembly also includes an adjusting nut, a second guide hole is provided on the second connecting plate along the second direction, an external thread is provided on the guide shaft, and the guide shaft passes through the second guide hole and cooperates with the adjusting nut thread.

[0014] In some embodiments, the elastic buffer assembly further includes a linear bearing, which is mounted on the first mounting plate and sleeved on the guide shaft;

[0015] And / or, the elastic member comprises a spring, and the spring is sleeved on the guide shaft and sandwiched between the first mounting plate and the second mounting plate;

[0016] And / or, the elastic buffer assembly includes a second connecting plate, a second mounting plate and at least two guide shafts.

[0017] In some embodiments, each of the calibration modules includes at least two calibration blocks arranged at intervals along a third direction, the third direction, the first direction and the second direction are perpendicular to each other, and all the calibration blocks in each of the calibration modules can be in contact with different fingerprint modules at the same time.

[0018] In some embodiments, the first motion module includes a first substrate and a first screw module installed on the first substrate, the second motion module includes a second substrate and a second screw module installed on the second substrate, the second substrate is connected to the moving end of the first screw module, and the moving end of the second screw module is connected to the fixed plate through a hanging plate.

[0019] The terminal testing device according to the embodiment of the utility model comprises a frame and a fingerprint module calibration device as described in any one of the above embodiments, and the first motion module in the fingerprint module calibration device is installed on the frame.

[0020] The technical advantages of the terminal testing device according to the embodiment of the utility model are the same as the technical advantages of the fingerprint module calibration device in the above embodiment, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a fingerprint module calibration device according to an embodiment of the present utility model.

[0022] Figure 2 It is a schematic diagram of a test component in a fingerprint module calibration device according to an embodiment of the present utility model.

[0023] Figure 3 It is a schematic diagram of a calibration module in a fingerprint module calibration device according to an embodiment of the utility model.

[0024] Figure 4 Schematic diagram of a first motion module in a fingerprint module calibration device according to an embodiment of the present utility model.

[0025] Figure 5 Schematic diagram of the second motion module in the fingerprint module calibration device according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 1. Test assembly; 11. Fixing plate; 12. Calibration module; 121. Pressure sensor; 122. Calibration block; 123. Cylinder; 124. First connecting plate; 124. Second connecting plate; 125. First mounting plate; 126. Second mounting plate; 127. Guide shaft; 128. Adjusting nut; 129. Linear bearing; 13. First adapter plate; 2. First motion module; 21. First substrate; 22. First screw module; 23. Drag chain; 24. Wiring sheet metal cover; 3. Second motion module; 31. Second substrate; 32. Second screw module; 33. Hanging plate; 34. Second adapter plate. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0029] Combine the following Figure 1-Figure 5 A fingerprint module calibration device according to an embodiment of the present utility model is described.

[0030] The fingerprint module calibration device of the embodiment of the utility model comprises a test assembly 1, a first motion module 2 and a second motion module 3. The test assembly 1 comprises a fixed plate 11 and three calibration modules 12 mounted on the fixed plate 11, and the three calibration modules 12 are arranged at intervals along a first direction. The moving end of the first motion module 2 is connected to the second motion module 3 so as to drive the second motion module 3 to move along the first direction, and the moving end of the second motion module 3 is connected to the fixed plate 11 so as to drive the fixed plate 11 to move along the second direction, and the calibration module 12 approaches and moves away from the fingerprint module along the second direction.

[0031] According to the fingerprint module calibration device of the embodiment of the utility model, the first motion module 2 can drive the second motion module 3 and the test component 1 to move along the first direction as a whole, so that the three calibration modules 12 in the test component 1 can be moved to the same calibration position in sequence. Moreover, when any calibration module 12 is located at the calibration position, the second motion module 3 can drive the test component 1 as a whole to be close to the fingerprint module, so that the calibration module 12 located at the calibration position is in contact with the fingerprint module, thereby achieving calibration and testing of the fingerprint module. That is, there is no need to move the position of the fingerprint module, and the calibration and testing of the fingerprint module can be achieved in sequence through the three calibration modules 12. The space required for the calibration of the fingerprint module is small, and the calibration efficiency is high.

[0032] It should be noted that the first direction can be either a linear direction or a circumferential direction. In this embodiment, the fingerprint module calibration device is described by taking the first direction as a linear direction as an example. The first direction is a horizontal direction, and the second direction is a height direction perpendicular to the first direction. When the terminal where the fingerprint module to be tested is located is fixed in the test position, taking the terminal as a mobile phone as an example, the screen of the mobile phone is facing upward and is set horizontally.

[0033] In some embodiments, the three calibration modules 12 each include an elastic buffer component, a pressure sensor 121, and a calibration block 122 connected in sequence along the second direction, the elastic buffer component is connected to the moving end of the second motion module 3, and the calibration block 122 is used to fit the fingerprint module. The calibration blocks 122 in the three calibration modules 12 are respectively a flesh-colored calibration block, a black calibration block, and a 3D stripe calibration block.

[0034] That is, when any calibration module 12 moves to the calibration position under the drive of the first motion module 2, the second motion module 3 fits the calibration block 122 onto the fingerprint module through the elastic buffer component. At this time, the elastic buffer component elastically deforms so that the calibration block 122 is pressed onto the fingerprint module with a certain pressure. The pressure sensor 121 monitors the pressure of the calibration block 122 on the fingerprint module in real time to ensure that the pressure is within the set range to ensure the calibration accuracy of the fingerprint module.

[0035] Specifically, when calibrating and testing the fingerprint module, first press one of the flesh-colored calibration block and the black calibration block on the fingerprint module to complete the first calibration, then press the other of the flesh-colored calibration block and the black calibration block on the fingerprint module to complete the second calibration, and finally press the 3D stripe calibration block on the fingerprint module to complete the third calibration, and finally complete the test of the fingerprint module. Among them, the 3D stripe calibration block refers to the flesh-colored surface with concave and convex stripe grooves used to fit the fingerprint module.

[0036] For example, the flesh-colored calibration block, the black calibration block, and the 3D stripe calibration block are arranged in sequence at equal intervals along the first direction.

[0037] In some embodiments, at least two calibration modules 12 further include a driving device, which is mounted on the fixed plate 11 , and a moving end of the driving device is connected to the elastic buffer component to drive the elastic buffer component to reciprocate along the second direction.

[0038] Taking the second direction as the height direction as an example, at least two driving devices are designed to make the three calibration blocks 122 at different heights, that is, the calibration block 122 at the calibration position can be lower than the other two calibration blocks 122, so as to ensure that when the calibration block 122 at the calibration position moves down to fit the fingerprint module, the other two calibration blocks 122 will not interfere with the fingerprint module. In other words, at this time, the distance between two adjacent calibration blocks 122 in the first direction can be designed to be smaller, so that the test assembly 1 has a compact structure and occupies a small volume.

[0039] In some embodiments, Figure 2 As shown, the driving device includes a cylinder 123, any two calibration modules 12 include the cylinder 123, and the remaining calibration module 12 includes a first connecting plate 124, and the first end and the second end of the first connecting plate 124 opposite to each other along the second direction are respectively connected to the fixing plate 11 and the elastic buffer assembly.

[0040] That is, only two calibration blocks 122 can reciprocate along the second direction driven by the cylinder 123, and the position of the other calibration block 122 is not adjustable. This setting ensures that any one of the three calibration blocks 122 can be lower than the other two, and further reduces the production cost of the test component 1.

[0041] For example, Figure 1 and Figure 2 As shown, the two cylinders 123 and the first connecting plate 124 are both installed on the first adapter plate 13, and the first adapter plate 13 is connected to the fixed plate 11. The two cylinders 123 correspond to the flesh color calibration block and the black calibration block respectively, and the first connecting plate 124 corresponds to the 3D stripe calibration block. When the cylinders 123 drive the corresponding flesh color calibration block and the black calibration block to move to the highest position, the 3D stripe calibration block is at the lowest position relative to the other two calibration blocks 122.

[0042] During the specific test, the fingerprint module is fixed at the designated installation position, and the first motion module 2 drives the second motion module 3 and the test assembly 1 to move to the calibration position. At this time, the flesh-colored calibration block is located directly above the test area of ​​the fingerprint module. Then, the cylinder 123 drives the flesh-colored calibration block to descend so that it is at the lowest position relative to the other two calibration blocks 122. Then, the second motion module 3 drives the test assembly 1 to move downward as a whole so that the flesh-colored calibration block is pressed on the fingerprint module, and the first calibration test is started. After the calibration test is completed, the second motion module 3 drives the test assembly 1 to move up and reset, and the cylinder 123 drives the flesh-colored calibration block to move up and reset. Then, the same steps as above are followed to complete the calibration test of the fingerprint module with the black calibration block and the 3D stripe calibration block in turn.

[0043] In some embodiments, Figure 3As shown, the elastic buffer assembly includes a second connecting plate 124, a first mounting plate 125, a second mounting plate 126, a guide shaft 127 and an elastic member. The second connecting plate 124, the first mounting plate 125 and the second mounting plate 126 are arranged in sequence along the second direction, the first mounting plate 125 is connected to the moving end of the second motion module 3, the first mounting plate 125 is provided with a first guide hole penetrating the first mounting plate 125 along the second direction, and the pressure sensor 121 is arranged on the side of the second mounting plate 126 away from the first mounting plate 125. The guide shaft 127 extends along the second direction and is slidably fitted in the first guide hole, the first end of the guide shaft 127 is connected to the second connecting plate 124, and the second end of the guide shaft 127 is connected to the second mounting plate 126; the elastic member is connected between the first mounting plate 125 and the second mounting plate 126.

[0044] At this time, when the second motion module 3 drives the calibration block 122 to move downward and press on the fingerprint module, the guide shaft 127 slides relative to the second mounting plate 126 to shorten the distance between the first mounting plate 125 and the second mounting plate 126, thereby compressing the elastic member therebetween. The elastic force generated by the compression of the elastic member satisfies the pressing force of the calibration block 122 on the fingerprint module.

[0045] In some embodiments, Figure 3 As shown, the elastic buffer assembly also includes an adjusting nut 128, a second guide hole is provided on the second connecting plate 124 along the second direction, and an external thread is provided on the guide shaft 127. The guide shaft 127 passes through the second guide hole and is threadedly engaged with the adjusting nut 128.

[0046] By rotating the adjusting nut 128, the distance between the first mounting plate 125 and the second mounting plate 126 can be adjusted, and the elastic deformation of the elastic member between the first mounting plate 125 and the second mounting plate 126 can also be adjusted. When the pressure sensor 121 detects that the pressure between the calibration block 122 and the fingerprint module is too large or too small, the pressure can be adjusted by rotating the adjusting nut 128 to ensure that the pressure is maintained within the set range. In particular, when the test assembly 1 performs calibration tests on multiple fingerprint modules at the same time, it can ensure that the pressure on multiple fingerprint modules is the same.

[0047] In some embodiments, Figure 3 As shown, the elastic buffer assembly further includes a linear bearing 129 , which is mounted on the first mounting plate 125 and sleeved on the guide shaft 127 .

[0048] Under the guidance of the linear bearing 129 , the sliding of the guide shaft 127 relative to the first mounting plate 125 along the second direction is more stable and labor-saving, and a large friction force between the two is effectively avoided to affect the calibration test accuracy of the fingerprint module.

[0049] Specifically, Figure 3 As shown, the elastic member includes a spring (not shown in the figure), which is sleeved on the guide shaft 127 and clamped between the first mounting plate 125 and the second mounting plate 126. At the same time, the elastic buffer assembly includes a second connecting plate 124, a second mounting plate 126, two guide shafts 127, two springs and two linear bearings 129, that is, a calibration block 122 is guided by two guide shafts 127, which further improves the guiding stability of the calibration block 122.

[0050] In some embodiments, each calibration module 12 includes at least two calibration blocks 122 arranged at intervals along a third direction, the third direction, the first direction, and the second direction are perpendicular to each other, and all calibration blocks 122 in each calibration module 12 can be in contact with different fingerprint modules at the same time.

[0051] Thus, one test component 1 can simultaneously implement calibration tests on at least two fingerprint modules, so that the fingerprint module test device can test the terminal with the fingerprint module more efficiently.

[0052] Specifically, Figure 2 and Figure 3 As shown, each calibration module 12 includes two calibration blocks 122 arranged at intervals along a third direction, and the third direction is a horizontal direction and perpendicular to the first direction.

[0053] In some embodiments, Figure 4 and Figure 5 As shown, the first motion module 2 includes a first substrate 21 and a first screw module 22 installed on the first substrate 21, the second motion module 3 includes a second substrate 31 and a second screw module 32 installed on the second substrate 31, the second substrate 31 is connected to the moving end of the first screw module 22, and the moving end of the second screw module 32 is connected to the fixed plate 11 through the hanging plate 33.

[0054] The first screw module 22 and the second screw module 32 both include a stepping motor and a screw transmission mechanism, and the moving end thereof can be steplessly adjusted along the corresponding direction under the drive of the stepping motor, so as to ensure accurate and reliable position adjustment of the calibration block 122. At the same time, the first screw module 22 and the second screw module 32 occupy less space and have lower cost than other linear modules, which can further reduce the volume and manufacturing cost of the fingerprint module testing device.

[0055] Specifically, Figure 4 As shown, the first motion module 2 also includes a wiring sheet metal cover 24 and a drag chain 23, which are both installed on the first substrate 21 to protect the wiring and prevent the wiring from being exposed and interfering with external components and being pulled and damaged. The second screw module 32 is connected to the second substrate 31 through a second adapter plate 34.

[0056] Take the mobile phone as an example, the terminal where the fingerprint module to be tested is located. Figure 1-Figure 5 Describe the calibration steps of the fingerprint module calibration device according to the embodiment of the utility model:

[0057] After the mobile phone reaches the test position, the first motion module 2 drives the second motion module 3 and the test component 1 to move to the first calibration position. At this time, the flesh-colored calibration block is located directly above the test area of ​​the fingerprint module in the mobile phone. Then the cylinder 123 drives the flesh-colored calibration block to descend so that its position is lowest relative to the other two calibration blocks 122. Then the second motion module 3 drives the test component 1 to move downward as a whole so that the flesh-colored calibration block is pressed on the fingerprint module to start the first calibration test. After the calibration test is completed, the second motion module 3 drives the test component 1 to move up and reset, and the cylinder 123 drives the flesh-colored calibration block to move up and reset.

[0058] Then, the first motion module 2 moves to drive the second motion module 3 and the test component 1 to move to the second calibration position. At this time, the black calibration block is located directly above the test area of ​​the fingerprint module in the mobile phone. Then, the cylinder 123 drives the black calibration block to descend so that it is at the lowest position relative to the other two calibration blocks 122. Then, the second motion module 3 drives the test component 1 to move downward as a whole so that the black calibration block is pressed on the fingerprint module, and the second calibration test starts. After the calibration test is completed, the second motion module 3 drives the test component 1 to move up and reset, and the cylinder 123 drives the black calibration block to move up and reset.

[0059] Then, the first motion module 2 drives the second motion module 3 and the test component 1 to move to the third calibration position. At this time, the 3D stripe calibration block is located directly above the test area of ​​the fingerprint module in the mobile phone. Then, the second motion module 3 drives the test component 1 to move downward as a whole so that the 3D stripe calibration block is pressed on the fingerprint module, and the third calibration test is started. After the calibration test is completed, the second motion module 3 drives the test component 1 to move up and reset, so that the 3D stripe calibration block moves up and reset.

[0060] Finally, the first motion module 2 drives the second motion module 3 and the test assembly 1 back to the origin. During the entire calibration test process, the pressure sensor 121 detects the calibration test pressure in real time, and adjusts the spring preload to keep the pressure on the fingerprint modules in the same group of two mobile phones the same.

[0061] The terminal testing device according to the embodiment of the utility model comprises a frame and a fingerprint module calibration device as in any of the above embodiments, and the first motion module 2 in the fingerprint module calibration device is installed on the frame.

[0062] The technical advantages of the terminal testing device according to the embodiment of the utility model are the same as the technical advantages of the fingerprint module calibration device in the above embodiment, which will not be repeated here.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0068] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A fingerprint module calibration device, characterized in that: include: A test assembly, the test assembly comprising a fixing plate and three calibration modules mounted on the fixing plate, the three calibration modules being arranged at intervals along a first direction; as well as A first motion module and a second motion module, the moving end of the first motion module is connected to the second motion module so as to drive the second motion module to move along the first direction, the moving end of the second motion module is connected to the fixed plate so as to drive the fixed plate to move along the second direction, and the calibration module approaches and moves away from the fingerprint module along the second direction.

2. The fingerprint module calibration device according to claim 1, characterized in that: The three calibration modules each include an elastic buffer component, a pressure sensor and a calibration block which are sequentially connected along the second direction, the elastic buffer component is connected to the moving end of the second motion module, and the calibration block is used to fit the fingerprint module; The calibration blocks in the three calibration modules are respectively a flesh-colored calibration block, a black calibration block and a 3D stripe calibration block.

3. The fingerprint module calibration device according to claim 2, characterized in that: At least two of the calibration modules further include a driving device, which is mounted on the fixed plate, and a moving end of the driving device is connected to the elastic buffer component to drive the elastic buffer component to reciprocate along the second direction.

4. The fingerprint module calibration device according to claim 3, characterized in that: The driving device includes a cylinder, any two of the calibration modules include the cylinder, and the remaining one of the calibration modules includes a first connecting plate, and the first end and the second end of the first connecting plate opposite to each other along the second direction are respectively connected to the fixing plate and the elastic buffer assembly.

5. The fingerprint module calibration device according to claim 2, characterized in that: The elastic buffer component comprises: a second connecting plate, a first mounting plate and a second mounting plate, wherein the second connecting plate, the first mounting plate and the second mounting plate are arranged in sequence along the second direction, the first mounting plate is connected to the moving end of the second motion module, a first guide hole is provided on the first mounting plate along the second direction and penetrates the first mounting plate, and the pressure sensor is provided on a side of the second mounting plate away from the first mounting plate; a guide shaft, the guide shaft extending along the second direction and slidingly fitted in the first guide hole, the first end of the guide shaft being connected to the second connecting plate, and the second end of the guide shaft being connected to the second mounting plate; and An elastic member is connected between the first mounting plate and the second mounting plate.

6. The fingerprint module calibration device according to claim 5, characterized in that: The elastic buffer assembly also includes an adjusting nut. The second connecting plate is provided with a second guide hole that penetrates the second connecting plate along the second direction. The guide shaft is provided with an external thread. The guide shaft passes through the second guide hole and cooperates with the adjusting nut thread.

7. The fingerprint module calibration device according to claim 5, characterized in that: The elastic buffer assembly further includes a linear bearing, which is mounted on the first mounting plate and sleeved on the guide shaft; And / or, the elastic member comprises a spring, and the spring is sleeved on the guide shaft and sandwiched between the first mounting plate and the second mounting plate; And / or, the elastic buffer assembly includes a second connecting plate, a second mounting plate and at least two guide shafts.

8. The fingerprint module calibration device according to any one of claims 2 to 7, characterized in that: Each of the calibration modules includes at least two calibration blocks arranged at intervals along a third direction, the third direction, the first direction and the second direction are perpendicular to each other, and all the calibration blocks in each of the calibration modules can be in contact with different fingerprint modules at the same time.

9. The fingerprint module calibration device according to claim 1, characterized in that: The first motion module includes a first substrate and a first screw module installed on the first substrate, the second motion module includes a second substrate and a second screw module installed on the second substrate, the second substrate is connected to the moving end of the first screw module, and the moving end of the second screw module is connected to the fixed plate through a hanging plate.

10. A terminal testing device, characterized in that: It comprises a frame and a fingerprint module calibration device according to any one of claims 1 to 9, wherein the first motion module in the fingerprint module calibration device is installed on the frame.

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