Handwriting pen testing equipment

By designing a stylus testing device, which utilizes a robotic arm and a host computer in conjunction with a pairing module and a touchscreen for automated testing, the problem of low efficiency and high labor costs associated with manual stylus inspection has been solved, achieving highly efficient automated testing.

CN223743074UActive Publication Date: 2025-12-30IFLYTEK CO LTD
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Patent Information

Application Number
CN202520174767.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2025-12-30
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

In existing technologies, after the stylus is assembled, it needs to be manually checked for pairing with electronic devices and writing ability, which is inefficient and has high labor costs.

Method used

Design a stylus testing device, including a robotic arm, a host computer, and a testing device. The robotic arm grasps the stylus and performs automated pairing and writing tests in conjunction with a pairing module and a touch screen. Automatic pairing is achieved using magnetic components, Hall sensors, and a communication unit. The charging status is detected by a wireless charging unit, and a camera assists in positioning, thus achieving fully automated testing.

Benefits of technology

It has automated the testing process for styluses, reducing the inefficiency and high labor costs of manual operation and improving testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of handwriting pen testing, and provides handwriting pen testing equipment which comprises a manipulator, an upper computer and a testing device. The mechanical arm and the testing device are both in communication connection with the upper computer. The testing device is provided with a touch screen and a pairing module, and the mechanical arm is used for grabbing the writing pen. The upper computer is used for outputting a test instruction to the manipulator, and the manipulator is used for controlling the handwriting pen to move to the pairing module according to the test instruction and controlling the handwriting pen to write on the touch screen. The pairing module is used for being in communication connection with the handwriting pen and feeding back pairing information to the touch screen. And the upper computer is used for judging whether the handwriting pen can work normally or not according to the pairing information of the pairing module and the writing information of the touch screen. According to the handwriting pen testing equipment, automation of handwriting pen pairing testing and writing testing processes is achieved through mutual cooperation of the mechanical arm, the upper computer and the testing device, manual operation is not needed, and the defects that manual checking of the handwriting pen is low in efficiency and high in labor cost are overcome.
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Description

TECHNICAL FIELD

[0001] The utility model relates to handwriting pen test technical field especially, relate to a handwriting pen test equipment. BACKGROUND

[0002] In prior art, after the handwriting pen is assembled, it is usually needed to manually check whether the handwriting pen can be matched with the applicable electronic equipment (such as mobile phone, computer) and write, and the manual checking efficiency is low, and the labor cost is high. UTILITY MODEL CONTENTS

[0003] The utility model provides a handwriting pen test equipment to solve the defects of low efficiency and high labor cost of manual checking of handwriting pen in prior art.

[0004] The utility model provides a handwriting pen test equipment, it includes: manipulator, host computer and test device,

[0005] The manipulator and the test device all are connected with the host computer, the test device has touch screen and pairing module, and the manipulator is used to hold handwriting pen,

[0006] The host computer is used to output test instruction to the manipulator, and the manipulator is used to control the handwriting pen to move to the pairing module according to the test instruction and control the handwriting pen to write on the touch screen,

[0007] The pairing module is used to be connected with the handwriting pen and feedback pairing information to the touch screen, and the host computer is used to judge whether the handwriting pen can work normally according to the pairing information of the pairing module and the writing information of the touch screen.

[0008] According to the handwriting pen test equipment of the utility model, the pairing module includes magnetic attraction piece, hall sensor and communication unit, and the communication unit is connected with the hall sensor and the touch screen respectively,

[0009] The magnetic attraction piece is used to attract the magnetic attraction part of the handwriting pen, and the hall sensor is used to output magnetic field intensity information to the communication unit, and the communication unit is used to emit pairing signal to the handwriting pen according to the magnetic field intensity information, to be connected with the handwriting pen, and feedback the pairing information to the touch screen according to the connection state of the handwriting pen.

[0010] The handwriting pen testing equipment according to the utility model, the test device further includes a wireless charging unit, the wireless charging unit is connected with the hall sensor and the touch screen in communication respectively, the wireless charging unit is used for carrying out wireless charging to the handwriting pen according to the magnetic field intensity information, and feedback charging state information to the touch screen, the host computer is further used for judging whether the handwriting pen can be charged normally according to the charging state information.

[0011] The handwriting pen testing equipment according to the utility model, the mechanical hand includes a mechanical arm and a clamping mechanism arranged on the mechanical arm, and the clamping mechanism is used for gripping the handwriting pen.

[0012] The handwriting pen testing equipment according to the utility model, the mechanical hand further includes a camera;

[0013] The camera is arranged on the clamping mechanism, the camera is connected with the host computer in communication, the camera is used for shooting the image of the handwriting pen, and the host computer is further used for controlling the mechanical hand to pick up and move the handwriting pen according to the image of the handwriting pen.

[0014] The handwriting pen testing equipment according to the utility model further includes a feeding device, the mechanical hand further includes a base, and the mechanical arm is rotatably arranged on the base; the test device is arranged on one side of the mechanical hand, and the feeding device is arranged on the other side of the mechanical hand; the feeding device is used for storing the handwriting pen to be detected;

[0015] The mechanical arm can rotate between a feeding position and a test position relative to the base; in the feeding position, the clamping mechanism faces the feeding device to pick up the handwriting pen; in the test position, the clamping mechanism faces the test device to move the handwriting pen to the pairing module or the touch screen.

[0016] The handwriting pen testing equipment according to the utility model, the feeding device is a transmission belt, a plurality of handwriting pens to be detected are stored at intervals along the transmission direction on the transmission belt, and the transmission belt is used for sequentially conveying the handwriting pen to be detected to a feeding position for the mechanical hand to pick up.

[0017] The handwriting pen testing equipment according to the utility model further includes a defective product buffer device;

[0018] In the case that the handwriting pen cannot work normally, the host computer is further used for controlling the mechanical hand to place the handwriting pen on the defective product buffer device.

[0019] The handwriting pen testing equipment according to the utility model, the defective product buffer device includes a first buffer device and a second buffer device;

[0020] The first buffer device is used for storing the stylus which cannot be connected with the pairing module, and the second buffer device is used for storing the stylus which cannot write on the touch screen.

[0021] The test device is a mobile phone or a tablet computer.

[0022] The stylus test device is characterized in that the mechanical hand is used for gripping the stylus to be tested, the mechanical hand is controlled by the upper computer and cooperates with the pairing module of the test device to perform pairing test on the stylus, and the stylus is used for writing test cooperated with the touch screen of the test device. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description.

[0024] Figure 1 is a schematic view of the stylus test device provided by the embodiment of the present application.

[0025] Figure 2 is a system diagram of the stylus test device provided by the embodiment of the present application.

[0026] Figure 3 is a structural schematic view of the clamping mechanism and the camera provided by the embodiment of the present application.

[0027] Figure 4 is a schematic view of the stylus provided by the embodiment of the present application.

[0028] Reference signs:

[0029] 1, a stylus test device;

[0030] 11, a mechanical hand; 111, a mechanical arm; 112, a clamping mechanism; 113, a camera; 114, a base;

[0031] 12, an upper computer;

[0032] 13, test device; 131, touch screen; 132, pairing module; 1321, magnetic attraction piece; 1322, Hall sensor; 1323, communication unit; 133, wireless charging unit;

[0033] 14, feeding device;

[0034] 2, stylus; 21, magnetic attraction part. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] The present application will be described below in combination with Figures 1-4 The present application provides a stylus test device.

[0037] As shown in Figure 1 and Figure 2 The present application provides a stylus test device 1, which comprises a mechanical hand 11, an upper computer 12 and a test device 13. The mechanical hand 11 and the test device 13 are both in communication connection with the upper computer 12. The test device 13 has a touch screen 131 and a pairing module 132, and the mechanical hand 11 is used to hold a stylus 2. The upper computer 12 is used to output a test instruction to the mechanical hand 11, and the mechanical hand 11 is used to control the stylus 2 to move to the pairing module 132 according to the test instruction, and to control the stylus 2 to write on the touch screen 131. The pairing module 132 is used to be in communication connection with the stylus 2, and to feed back pairing information to the touch screen 131. The upper computer 12 is used to judge whether the stylus 2 can work normally according to the pairing information of the pairing module 132 and the writing information of the touch screen 131.

[0038] In the present embodiment, the mechanical hand 11 is used to hold the stylus 2, and to cooperate with the test device 13 to perform pairing test and writing test under the control of the upper computer 12.

[0039] Specifically, when performing pairing test, the upper computer 12 can output a test instruction corresponding to the pairing test to the mechanical hand 11, and after receiving the test instruction, the mechanical hand 11 will move the stylus 2 to a test position close to the pairing module 132. After the stylus 2 is in position, the pairing module 132 will try to establish a connection with the stylus 2, and according to the connection result (success or failure), generate pairing information and feed back the pairing information to the touch screen 131.

[0040] When performing the writing test, the host computer 12 can output a test instruction corresponding to the writing test to the robot 11. After receiving the test instruction, the robot 11 moves the stylus 2 so that the tip of the stylus 2 contacts the touch screen 131 and controls the stylus 2 to write on the touch screen 131 according to a preset movement path. It can be understood that for a commonly used capacitive screen, the tip of the stylus 2 is usually made of a conductive material, which can simulate the conductivity of a human finger. When the tip of the stylus 2 contacts the screen, it can form a capacitive coupling with the capacitive sensing layer of the screen, thereby changing the capacitance value of the corresponding position. The control system of the screen can detect the change in the capacitance value and convert it into coordinate information, which is transmitted to the processor of the electronic device (such as a mobile phone or a tablet). The processor controls the electronic device to perform corresponding functions based on the information, such as controlling the screen to display the image or text drawn by the stylus 2.

[0041] During the writing process, the controller in the touch screen 131 can record the coordinate information generated after the tip of the stylus 2 contacts the touch screen 131. The writing information includes the above-mentioned coordinate information. It can be understood that when the coordinate information matches the preset movement path, it indicates that the stylus 2 can normally write on the touch screen 131. When the coordinate information does not match the preset movement path, it indicates that the stylus 2 cannot normally write on the touch screen 131.

[0042] In addition, some styluses 2 can also have a pressure sensing function. They have a pressure sensor inside to detect the pressure information of the contact between the stylus 2 and the touch screen 131 and transmit the pressure information to the controller of the touch screen 131. The controller controls the touch screen 131 to adjust the thickness of the corresponding generated line based on the pressure information. When performing a writing test on a stylus 2 with a pressure sensing function, the coordinate information and pressure information of the tip of the stylus 2 after contacting the touch screen 131 are stored in the controller to form writing information, so that the host computer 12 can read and determine whether the writing function is normal. It can be understood that the host computer 12 only needs to compare the pressure information with the pressure data corresponding to the preset movement path to determine whether the pressure sensing function is normal. When both the pressure information and the coordinate information match the corresponding preset data, it indicates that the stylus 2 can normally write on the touch screen 131.

[0043] Based on the above pairing information and writing information, the host computer 12 can determine whether the stylus 2 can work normally. Specifically, when and only when the pairing information shows that the stylus 2 and the pairing module 132 can successfully connect, and the writing information matches the preset movement path, it indicates that the stylus 2 can normally pair and connect with the test device 13 and write, i.e., the stylus 2 can work normally. When the pairing information shows that the stylus 2 and the pairing module 132 fail to connect, or the writing information does not match the preset movement path, it indicates that the stylus 2 cannot work normally.

[0044] The handwriting pen testing equipment 1 of the utility model, through setting up mechanical hand 11 to hold handwriting pen 2 to be tested, mechanical hand 11 is controlled under host computer 12 and is matched with the pairing module 132 of testing device 13 and is matched with the touch screen 131 of testing device 13 to handwriting test, and host computer 12 can read the pairing information generated by pairing test and the handwriting information generated by handwriting test, and according to the above information, it is judged that handwriting pen 2 can be normally connected or handwriting, so that it is judged that handwriting pen 2 can normally work. As can be known from the above, the handwriting pen testing equipment 1 of the utility model, through the mutual cooperation of mechanical hand 11, host computer 12 and testing device 13, the automation of handwriting pen 2 testing process is realized, manual operation is not needed, and the defects of low efficiency and high labor cost of handwriting pen artificial inspection are solved.

[0045] In some embodiments, as shown in Figure 2 and Figure 4 Pairing module 132 includes magnetic attraction piece 1321, hall sensor 1322 and communication unit 1323. Communication unit 1323 is respectively communicated with hall sensor 1322 and touch screen 131. Magnetic attraction piece 1321 is used for attracting handwriting pen 2 magnetic attraction part 21, and hall sensor 1322 is used for outputting magnetic field intensity information to communication unit 1323. Communication unit 1323 is used for transmitting pairing signal to handwriting pen 2 according to magnetic field intensity information, so as to be communicated with handwriting pen 2, and feedback pairing information to touch screen 131 according to the connection state of handwriting pen 2.

[0046] In the embodiment, it can be understood that hall sensor 1322 is arranged at a specific position close to magnetic attraction piece 1321, so as to detect the magnetic field intensity and generate the corresponding magnetic field intensity information. When pairing test is carried out, mechanical hand 11 approaches handwriting pen 2 magnetic attraction part 21 to magnetic attraction piece 1321, so as to attract handwriting pen 2 magnetic attraction part 21 to magnetic attraction piece 1321. In the process of approaching handwriting pen 2 magnetic attraction part 21 to magnetic attraction piece 1321 and attracting handwriting pen 2 magnetic attraction part 21 to magnetic attraction piece 1321, the magnetic field intensity of the detection position of hall sensor 1322 will change. When handwriting pen 2 reaches the preset detection position (usually attached to magnetic attraction piece 1321), the magnetic field intensity detected by hall sensor 1322 will fluctuate slightly within a specific range. Communication unit 1323 can judge whether handwriting pen 2 has reached the preset detection position according to the magnetic field intensity information, and transmit pairing signal to handwriting pen 2 after handwriting pen 2 reaches the detection position, so as to establish connection with handwriting pen 2, and generate pairing information according to the connection state (i.e. successful connection or failed connection) of handwriting pen 2 and feedback to touch screen 131. When the magnetic field intensity information shows that handwriting pen 2 has not reached the preset detection position, communication unit 1323 can switch to low-power mode to reduce power consumption.

[0047] Further, in some embodiments, as shown inFigure 2 As shown, the testing device 13 further comprises a wireless charging unit 133, which is respectively connected in communication with the Hall sensor 1322 and the touch screen 131. The wireless charging unit 133 is configured to perform wireless charging on the stylus 2 according to the magnetic field strength information, and feed back charging state information to the touch screen 131. The host computer 12 is further configured to determine whether the stylus 2 can be normally charged according to the charging state information.

[0048] In this embodiment, the wireless charging unit 133 is arranged in the testing device 13 to perform wireless charging test while performing pairing test on the stylus 2. Specifically, the wireless charging unit 133 is connected in communication with the Hall sensor 1322 to receive the magnetic field strength information generated by the Hall sensor 1322, and determine whether the stylus 2 has reached a preset detection position according to the magnetic field strength information. After the stylus 2 reaches the detection position, the wireless charging unit 133 performs wireless charging on the stylus 2, and generates charging state information according to the charging state (whether successful charging) and feeds back to the touch screen 131. The host computer 12 can determine whether the wireless charging function of the stylus 2 is normal according to the charging state information.

[0049] In some embodiments, as shown in Figure 1 The mechanical arm 11 comprises a mechanical arm 111 and a clamping mechanism 112 arranged on the mechanical arm 111, and the clamping mechanism 112 is configured to grip the stylus 2.

[0050] In this embodiment, the clamping mechanism 112 is configured to clamp and fix the stylus 2, and the mechanical arm 111 is configured to drive the clamping mechanism 112 to move within a certain space range, so as to transfer the stylus 2 between the touch screen 131 and the pairing module 132, and complete the writing test and the pairing test in cooperation with the touch screen 131 and the pairing module 132.

[0051] Further, in some embodiments, as shown in Figure 1 and Figure 3 The mechanical arm 11 further comprises a camera 113. The camera 113 is arranged on the clamping mechanism 112, and the camera 113 is connected in communication with the host computer 12. The camera 113 is configured to capture an image of the stylus 2, and the host computer 12 is further configured to control the mechanical arm 11 to pick up and move the stylus 2 according to the image of the stylus 2.

[0052] In this embodiment, by arranging the camera 113 on the clamping mechanism 112, the camera 113 can capture an image of the stylus 2 when the clamping mechanism 112 approaches the stylus 2 to be detected, and transmit the image to the host computer 12. The host computer 12 can process and identify the image to determine the current placement position and posture of the stylus 2, and control the mechanical arm 11 to adjust the posture and then clamp and pick up the stylus 2, so that the clamping mechanism 112 can be clamped at a preset position of the stylus 2, so as to perform subsequent pairing test and writing test.

[0053] For example, it can be understood that the magnetic attraction part 21 of the stylus 2 is usually arranged on the side surface of the stylus 2 (as shown in Figure 4 The camera 113 can capture an image of the stylus 2 after capturing the image of the stylus 2, and the host computer 12 can determine the position of the magnetic attraction part 21 by image processing and recognition, and control the mechanical arm 11 to adjust the posture to pick up the stylus 2, so that the magnetic attraction part 21 of the stylus 2 is away from the clamping mechanism 112, and the magnetic attraction part 21 is close to and attracted to the magnetic attraction part 1321.

[0054] In addition, it can be understood that when the writing test is performed, the touch screen 131 can also generate and display a corresponding pattern according to the movement path of the stylus 2 on the touch screen 131. The camera 113 can also be used to capture the pattern displayed on the touch screen 131, and send the captured image to the host computer 12. The host computer 12 can also compare the pattern with the movement path of the stylus 2 to assist in determining whether the stylus 2 can normally write.

[0055] Further, in some embodiments, as shown in Figure 1 The stylus testing device 1 further comprises a feeding device 14, and the mechanical arm 11 further comprises a base 114, and the mechanical arm 111 is rotatably arranged on the base 114. The testing device 13 is arranged on one side of the mechanical arm 11, and the feeding device 14 is arranged on the other side of the mechanical arm 11. The feeding device 14 is used to store the stylus 2 to be tested. The mechanical arm 111 can rotate relative to the base 114 between the feeding position and the testing position. In the feeding position, the clamping mechanism 112 faces the feeding device 14 to pick up the stylus 2. In the testing position, the clamping mechanism 112 faces the testing device 13 to move the stylus 2 to the pairing module 132 or the touch screen 131.

[0056] In this embodiment, the feeding device 14 is used to temporarily store the stylus 2 to be tested, and supply the stylus 2 to the mechanical arm 11. By rotatably arranging the mechanical arm 111 on the base 114, and arranging the testing device 13 and the feeding device 14 on different sides of the mechanical arm 11, the mechanical arm 111 needs to rotate relative to the base 114 to the feeding position when the stylus 2 needs to be picked up, and the mechanical arm 111 needs to rotate relative to the base 114 to the testing position when the test needs to be performed, so as to avoid the interference of the testing device 13 on the mechanical arm 11 when the stylus 2 is picked up, or the interference of the feeding device 14 on the mechanical arm 11 when the test is performed.

[0057] Specifically, in some embodiments, as shown in Figure 1As shown, the feeding device 14 is a transmission belt, which is configured to store a plurality of pens 2 to be tested at intervals along a transmission direction, and is used to sequentially convey the pens 2 to be tested to a feeding position for picking up by the mechanical hand 11.

[0058] In this embodiment, the transmission belt is capable of moving the pens 2 to be tested synchronously during transmission by sequentially arranging the pens 2 to be tested along the transmission direction of the transmission belt, so that the pens 2 to be tested can reach the fixed feeding position in the same posture for picking up by the mechanical hand 11.

[0059] It can be understood that the feeding position is the position of the pen 2 when the mechanical hand 11 picks up the pen 2, which is fixed and does not change due to the operation of the transmission belt. Generally, the feeding position is the position of the transmission belt closest to the mechanical hand 11.

[0060] In some embodiments, the pen testing device 1 further comprises a defective product caching device. In the case that the pen 2 cannot work normally, the host computer 12 is further configured to control the mechanical hand 11 to place the pen 2 in the defective product caching device.

[0061] In this embodiment, when the host computer 12 determines that the pen 2 cannot work normally based on the writing information and the pairing information, the defective product caching device is provided to control the mechanical hand 11 to place the pen 2 in the defective product caching device for subsequent fault checking and fault cause analysis.

[0062] Specifically, the defective product caching device can be a storage box or a storage rack.

[0063] It can be understood that generally, the pen 2 needs to be paired with the electronic device before writing on the screen of the electronic device. Therefore, during testing, pairing testing can be performed first, and then writing testing can be performed. When the testing device 13 cannot establish a connection with the pen 2, writing testing is not required, and the host computer 12 directly places the pen 2 in the defective product caching device. When the testing device 13 can be paired with the pen 2, the pen 2 is subjected to writing testing.

[0064] Specifically, in some embodiments, the defective product caching device comprises a first caching device and a second caching device. The first caching device is used to store the pen 2 that cannot be connected with the pairing module 132, and the second caching device is used to store the pen 2 that cannot write on the touch screen 131.

[0065] In the embodiment, when the test device 13 cannot establish a connection with the stylus 2 during the pairing test, the writing test does not need to be performed, and the stylus 2 can be directly placed in the first buffer device. Similarly, for the stylus 2 that can be paired with the test device 13 but cannot normally write on the touch screen 131, the stylus 2 is placed in the second buffer device. The first buffer device and the second buffer device in the embodiment preliminarily classify and buffer the stylus 2 according to the fault categories, so that subsequent fault inspection and fault cause analysis are more convenient.

[0066] Further, in some embodiments, the defective product buffer device further comprises a third buffer device, the test device 13 further comprises a wireless charging unit 133, and the pairing module 132 comprises a magnetic attraction piece 1321, a Hall sensor 1322, and a communication unit 1323. When the stylus 2 is close to the magnetic attraction piece 1321, the wireless charging unit 133 performs wireless charging on the stylus 2, and the communication unit 1323 sends a pairing signal to the stylus 2. Among them, the stylus 2 that can normally charge and be paired with the communication unit 1323 continues to be moved to the touch screen 131 by the mechanical hand 11 for writing test; the stylus 2 that can normally charge but cannot be paired with the communication unit 1323 is placed in the second buffer device by the mechanical hand 11; and the stylus 2 that cannot normally charge and cannot be paired with the communication unit 1323 is placed in the third buffer device by the mechanical hand 11.

[0067] Optionally, in some embodiments, the test device 13 is a mobile phone or a tablet computer. The mobile phone and the tablet computer are usually integrated with a pairing module 132 (such as a Bluetooth antenna) that can be used for pairing communication with the stylus 2 and a touch screen 131, can carry various software and programs for cooperation test, and is convenient for wired or wireless communication with the host computer 12.

[0068] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stylus testing apparatus, characterized by, The application relates to a pen testing device. The pen testing device comprises a mechanical arm, a host computer and a testing device. The mechanical arm and the testing device are in communication connection with the host computer. The testing device is provided with a touch screen and a pairing module. The mechanical arm is used for gripping a handwriting pen.

2. The handwriting pen testing apparatus according to claim 1, wherein The host computer is used for outputting a testing instruction to the mechanical arm. The mechanical arm is used for moving the handwriting pen to the pairing module according to the testing instruction and controlling the handwriting pen to write on the touch screen.

3. The stylus testing apparatus of claim 2, wherein The pairing module is used for being in communication connection with the handwriting pen and feeding back pairing information to the touch screen.

4. The stylus testing apparatus of claim 1, wherein The host computer is used for judging whether the handwriting pen can normally work according to the pairing information of the pairing module and writing information of the touch screen.

5. The stylus testing apparatus of claim 4, wherein, The pairing module comprises a magnetic attraction element, a Hall sensor and a communication unit. The communication unit is in communication connection with the Hall sensor and the touch screen.

6. The stylus testing apparatus of claim 4, wherein The magnetic attraction element is used for attracting the magnetic attraction part of the handwriting pen. The Hall sensor is used for outputting magnetic field intensity information to the communication unit. The communication unit is used for emitting a pairing signal to the handwriting pen according to the magnetic field intensity information to be in communication connection with the handwriting pen and feeding back the pairing information to the touch screen according to the connection state of the handwriting pen.

7. The stylus testing apparatus of claim 6, wherein The testing device further comprises a wireless charging unit.

8. The stylus testing apparatus of claim 1, wherein The wireless charging unit is in communication connection with the Hall sensor and the touch screen. The wireless charging unit is used for wirelessly charging the handwriting pen according to the magnetic field intensity information and feeding back charging state information to the touch screen. The host computer is further used for judging whether the handwriting pen can be normally charged according to the charging state information. The mechanical arm comprises a mechanical arm and a clamping mechanism arranged on the mechanical arm. The clamping mechanism is used for gripping the handwriting pen. The mechanical arm further comprises a camera. The camera is arranged on the clamping mechanism. The camera is in communication connection with the host computer. The camera is used for shooting the image of the handwriting pen. The host computer is further used for controlling the mechanical arm to pick up and move the handwriting pen according to the image of the handwriting pen. The pen testing device further comprises a feeding device. The mechanical arm is rotatably arranged on the base. The testing device is arranged on one side of the mechanical arm. The feeding device is arranged on the other side of the mechanical arm. The feeding device is used for storing the handwriting pen to be detected. The mechanical arm can rotate relative to the base between a feeding position and a testing position. In the feeding position, the clamping mechanism faces the feeding device to pick up the handwriting pen. In the testing position, the clamping mechanism faces the testing device to move the handwriting pen to the pairing module or the touch screen. The feeding device is a transmission belt. The transmission belt is configured to store a plurality of handwriting pens to be detected at intervals along a transmission direction. The transmission belt is used for sequentially conveying the handwriting pen to be detected to a feeding position for the mechanical arm to pick up. The pen testing device further comprises a defective product buffer device. In the case that the handwriting pen cannot normally work, the host computer is further used for controlling the mechanical arm to place the handwriting pen on the defective product buffer device.

9. The stylus testing apparatus of claim 8, wherein, The bad product caching device comprises a first caching device and a second caching device; The first caching device is used for storing the stylus which cannot be connected with the pairing module, and the second caching device is used for storing the stylus which cannot write on the touch screen.

10. The stylus testing apparatus of claim 1, wherein The testing device is a mobile phone or a tablet computer.