Capacitance pen automatic test fixture
By designing an automatic testing fixture for capacitive pens, the problem that existing equipment cannot fully simulate usage scenarios was solved, enabling stable testing of capacitive pens at different angles and positions, thus improving testing accuracy and efficiency.
Patent Information
- Application Number
- CN202511193343.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2025-11-21
AI Technical Summary
Existing capacitive pen testing equipment cannot fully simulate actual usage scenarios, resulting in discrepancies between test results and real-world usage scenarios. Furthermore, it is difficult to adapt to capacitive pens of different diameters, leading to low testing accuracy and efficiency.
An automatic testing fixture for capacitive pens was designed, comprising an angle adjustment module, a rotation module, a fixing component, and a propulsion component. Through the combination of an electric drive screw, a second motor, and a clamping plate, the capacitive pen can be stably fixed and tested at different angles and positions, achieving 360° detection.
It enables simulated testing of capacitive pens in various usage scenarios, improving the accuracy and efficiency of testing and ensuring the stability of signal transmission of capacitive pens under different usage conditions.
Smart Images

Figure CN120993003A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of capacitive pens, and particularly relates to an automatic testing fixture for capacitive pens. BACKGROUND
[0002] With the popularization of touch technology, the capacitive pen is a core input tool of an electronic device, and the performance stability of the capacitive pen directly affects the user experience. The existing capacitive pen detection equipment generally has the following technical bottlenecks:
[0003] The existing equipment is mainly focused on the detection of basic electrical performance, and the simulation of key scenes in actual use is insufficient, such as the continuity of signal transmission during continuous use and the signal transmission stability under different inclination angles, so that the test result deviates from the real use scene, and the actual performance of the capacitive pen cannot be comprehensively verified.
[0004] The existing pen body fixing device is difficult to adapt to capacitive pens with different diameters, and the pen body is prone to shaking due to the clamping gap, causing signal receiving errors and affecting the detection accuracy. Some devices need manual assistance for adjustment, further reducing the detection efficiency.
[0005] Therefore, an automatic testing fixture for capacitive pens is provided. SUMMARY
[0006] The application aims to provide an automatic testing fixture for capacitive pens to solve the problems in the background art.
[0007] To achieve the above-mentioned purpose, the application provides the following technical scheme: an automatic testing fixture for capacitive pens, comprising a shell, a discharge port and a detection plate, the discharge port is arranged at the bottom of the shell, and the detection plate is installed below the shell, further comprising:
[0008] An inclination angle adjusting module, the inclination angle adjusting module comprises an electric drive screw rod, a sliding frame, a first motor and a support, the electric drive screw rod is installed at the bottom of the shell, the sliding frame is slidingly connected to the outer wall of the electric drive screw rod, the first motor is installed on the outer wall of the sliding frame, and the support is installed on the output end of the first motor;
[0009] A rotating module, the rotating module comprises a second motor, a second screw rod, an inner bushing, a gear ring and an anti-skid strip, the second motor is installed on the outer wall of the support, the second screw rod is installed on the output end of the second motor, the inner bushing is rotationally connected to the upper portion of the support, the gear ring is fixedly connected to the outer wall of the inner bushing in an annular array, and the anti-skid strip is fixedly connected to the outer wall of the inner bushing in a linear array;
[0010] A fixing assembly, which comprises a sliding rod, a rotating disc, traction ropes and a second clamping plate, the sliding rod is slidingly connected to the inside of an inner sleeve pipe, the rotating disc is rotatably connected to the inside of the inner sleeve pipe, the traction ropes are symmetrically wound on the outer wall of the rotating disc, the second clamping plate is symmetrically slidingly connected to the inside of the inner sleeve pipe, and the ends of the traction ropes away from the rotating disc are fixedly connected to the bottom of the second clamping plate.
[0011] A pushing assembly, which comprises a baffle, a rack, a circular hole, a sliding block, a pinion and a threaded sliding groove, the baffle is symmetrically slidingly connected to the inside of the shell, the rack is fixedly connected to one end of the baffle outside the shell, the circular hole is formed in the outer wall of the shell, the sliding block is fixedly connected to the inside of the circular hole, the pinion is slidingly connected to the inside of the circular hole, and the threaded sliding groove is formed in the outer wall of the pinion and is matched with the sliding block.
[0012] Preferably, the support is horizontal to the bottom of the shell when the support is in the shell, and the support is pushed against the baffle when the support is received in the shell, so that the symmetric baffles are relatively far away and slide into the shell.
[0013] Preferably, the second lead screw is engaged with the tooth ring, and the inner diameter of the inner sleeve pipe is equal to the diameter of the capacitance pen.
[0014] Preferably, the inner sleeve pipe is rotatably connected with a folding plate away from the tooth ring, the first clamping plate is slidingly connected to the inside of the inner sleeve pipe and located on the side of the folding plate close to the tooth ring, the first spring is fixedly connected between the bottom of the second clamping plate and the inner wall of the inner sleeve pipe, the bottom of the sliding rod is slidingly connected to the inside of the rotating disc, the inner wall of the rotating disc is provided with a threaded groove, and the outer wall of the sliding rod is provided with a protrusion matched with the threaded groove of the inner wall of the rotating disc.
[0015] Preferably, the first square plate is rotatably connected to one end of the threaded sliding groove inside the shell, the third spring is fixedly connected between the first square plate and the inner wall of the shell, the second square plate is slidingly connected to the side of the first square plate away from the third spring, and the second spring is fixedly connected between the second square plate and the first square plate.
[0016] Preferably, the shell is provided with a sliding assembly, the sliding assembly comprises a push plate slidingly connected to the inside of the shell, the outer wall of the push plate is rotatably connected with a third lead screw, the outer wall of the shell is rotatably connected with a tooth disc, and the third lead screw is threadedly connected with the inner wall of the tooth disc.
[0017] Preferably, the detection plate is provided with a signal receiving plate vertically arranged on the bottom of the support.
[0018] Compared with the prior art, the present application has the following beneficial effects:
[0019] 1. By driving the electric drive screw, the slide can drive the support and the capacitance pen to move transversely above the detection plate, the second motor drives the rotation of the inner bushing pipe, so that the detection plate can detect the contact surface of the capacitance pen tip at 360 degrees, the first motor drives the rotation of the support, so that the detection plate can detect the contact of the capacitance pen tip at different angles, so that the device can simulate various use scenarios to detect the capacitance pen, and ensure that the capacitance pen detected can maintain effective transmission under different use conditions.
[0020] 2. The second square plate is in contact with the pen tip of the capacitance pen in the shell, and the capacitance pen in the shell is extruded by the second square plate and slides on the inner bushing pipe. When the capacitance pen slides to the folding plate, it will push the folding plate to make the folding plate turn over. The folding plate will push the first clamping plate to extrude the pen body of the capacitance pen, so as to realize the active feeding of the capacitance pen in the shell, and reduce the operation process of the staff.
[0021] 3. By fixing the upper and lower sides of the capacitance pen by the first and second clamping plates, the pen body of the capacitance pen can be more stable during transverse movement, avoiding the problem of inaccurate signal reception caused by shaking of the pen body during transverse movement, and improving the accuracy of detection. DETAILED DESCRIPTION
[0022] Figure 1 It is a schematic view of the overall structure of the present application;
[0023] Figure 2 It is a schematic view of the overall structure of the present application;
[0024] Figure 3 It is a schematic view of the overall structure of the present application;
[0025] Figure 4 It is an exploded view of the fixing assembly structure of the present application;
[0026] Figure 5 It is a sectional view of the fixing assembly structure of the present application;
[0027] Figure 6 It is a sectional view of the rotating module structure of the present application;
[0028] Figure 7 It is an enlarged view of structure A in the present application; Figure 6
[0029] Figure 8 It is an exploded view of the pushing assembly structure of the present application;
[0030] Figure 9 It is an enlarged view of structure B in the present application. Figure 8
[0031] Fig.
[0032] 1, housing; 2, discharge port; 3, detection plate; 4, inclination adjustment module; 5, rotating module; 6, fixing assembly; 7, pushing assembly; 8, sliding assembly;
[0033] 41, electric drive screw; 42, sliding frame; 43, first motor; 44, support;
[0034] 51, second motor; 52, second screw; 53, inner bushing; 54, gear ring; 55, anti-skid bar;
[0035] 61, folding plate; 62, first clamping plate; 63, sliding rod; 64, rotating disc; 65, traction rope; 66, second clamping plate; 67, first spring;
[0036] 71, baffle; 72, rack; 73, circular hole; 74, sliding block; 75, pinion; 76, threaded sliding groove; 77, first square plate; 78, second square plate; 79, second spring; 710, third spring;
[0037] 81, push plate; 82, third screw; 83, gear disc. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0039] Embodiments of the present application
[0040] Please refer to Figures 1 to 9 A capacitive pen automatic test fixture, comprising a housing 1, a discharge port 2, and a detection plate 3, the discharge port 2 is opened at the bottom of the housing 1, and the detection plate 3 is installed below the housing 1, further comprising:
[0041] An inclination adjustment module 4, the inclination adjustment module 4 comprises an electric drive screw 41, a sliding frame 42, a first motor 43, and a support 44, the electric drive screw 41 is installed at the bottom of the housing 1, the sliding frame 42 is slidingly connected to the outer wall of the electric drive screw 41, the first motor 43 is installed on the outer wall of the sliding frame 42, and the support 44 is installed on the output end of the first motor 43;
[0042] The rotating module 5 comprises a second motor 51, a second screw rod 52, an inner bushing 53, a tooth ring 54 and an anti-skid strip 55. The second motor 51 is installed on the outer wall of the support 44. The second screw rod 52 is installed on the output end of the second motor 51. The inner bushing 53 is rotationally connected to the upper portion of the support 44. The tooth ring 54 is fixedly connected to the outer wall of the inner bushing 53 in an annular array. The anti-skid strip 55 is fixedly connected to the outer wall of the inner bushing 53 in a linear array.
[0043] The fixing assembly 6 comprises a sliding rod 63, a rotating disc 64, a traction rope 65 and a second clamping plate 66. The sliding rod 63 is slidingly connected to the inner portion of the inner bushing 53. The rotating disc 64 is rotationally connected to the inner portion of the inner bushing 53. The traction rope 65 is symmetrically wound on the outer wall of the rotating disc 64. The second clamping plate 66 is symmetrically slidingly connected to the inner portion of the inner bushing 53. The ends of the traction rope 65, which are away from the rotating disc 64, are fixedly connected to the bottom of the second clamping plate 66.
[0044] The advancing assembly 7 comprises a baffle 71, a rack 72, a circular hole 73, a sliding block 74, a tooth shaft 75 and a threaded sliding groove 76. The baffle 71 is symmetrically slidingly connected to the inner portion of the outer shell 1. The rack 72 is fixedly connected to one end of the baffle 71 which is located outside the outer shell 1. The circular hole 73 is formed on the outer wall of the outer shell 1. The sliding block 74 is fixedly connected to the inner portion of the circular hole 73. The tooth shaft 75 is slidingly connected to the inner portion of the circular hole 73. The threaded sliding groove 76 is formed on the outer wall of the tooth shaft 75 and is matched with the sliding block 74.
[0045] When the support 44 is located inside the outer shell 1, the support 44 is horizontal to the bottom of the outer shell 1. When the support 44 is accommodated inside the outer shell 1, the baffle 71 is pushed and slides into the inner portion of the outer shell 1.
[0046] The second screw rod 52 is engaged with the tooth ring 54. The inner diameter of the inner bushing 53 is equal to the diameter of the capacitive pen.
[0047] The inner bushing 53 is rotationally connected with the flap 61 on the side away from the tooth ring 54. The first clamping plate 62 is slidingly connected to the inner portion of the inner bushing 53 on the side close to the tooth ring 54. The first spring 67 is fixedly connected between the bottom of the second clamping plate 66 and the inner wall of the inner bushing 53. The bottom of the sliding rod 63 is slidingly connected to the inner portion of the rotating disc 64. The inner wall of the rotating disc 64 is provided with a threaded groove. The outer wall of the sliding rod 63 is provided with a protrusion matched with the threaded groove of the inner wall of the rotating disc 64.
[0048] The first square plate 77 is rotationally connected to one end of the threaded sliding groove 76 located inside the outer shell 1. The third spring 710 is fixedly connected between the first square plate 77 and the inner wall of the outer shell 1. The second square plate 78 is slidingly connected to the side of the first square plate 77 away from the third spring 710. The second spring 79 is fixedly connected between the second square plate 78 and the first square plate 77.
[0049] The shell 1 is internally provided with a sliding assembly 8, which comprises a push plate 81 slidingly connected to the inside of the shell 1, and a third screw rod 82 rotatably connected to the outer wall of the push plate 81, and a tooth disc 83 rotatably connected to the outer wall of the shell 1, and the third screw rod 82 is threadedly connected to the inner wall of the tooth disc 83.
[0050] The detection plate 3 is provided with a signal receiving plate vertically arranged at the bottom of the support 44.
[0051] In actual application, the staff puts the capacitive pen to be detected into the shell 1, and ensures that the tips of the capacitive pens are all directed to the push plate 81, then the staff rotates the tooth disc 83, the rotation of the tooth disc 83 drives the third screw rod 82 and the push plate 81 to slide into the shell 1, and the push plate 81 slides to push the capacitive pens in the shell 1 to be stacked neatly and make the tips of the capacitive pens be at the same position.
[0052] When the capacitive pens are stacked in the shell 1, the discharge port 2 makes one capacitive pen at the bottom of the shell 1 fall onto the upper surface of the baffle 71, so that the single capacitive pen is separated from other capacitive pens by the baffle 71, when the support 44 is in the shell 1, the outer wall of the support 44 extrudes the baffle 71 to two sides, so that the capacitive pen originally on the baffle 71 falls onto the inner lining sleeve 53;
[0053] When the capacitive pen falls from the shell 1 onto the inner lining sleeve 53, the capacitive pen extrudes the slide rod 63 on the inner lining sleeve 53 downward, the slide rod 63 slides downward in the middle of the rotating disc 64, in the process of sliding downward, the surface bump on the slide rod 63 slides in the thread groove in the inner wall of the rotating disc 64 to make the rotating disc 64 rotate, the rotation of the rotating disc 64 relaxes the traction rope 65 wound on the rotating disc 64, at this time, the first spring 67 compressed is stretched and pushes the second clamping plate 66 to slide in the inner lining sleeve 53, when the second clamping plate 66 slides out of the inner lining sleeve 53, it clamps and fixes the outer wall of the capacitive pen.
[0054] Then the staff starts the equipment to detect the capacitive pen, the first motor 43 drives the support 44 to overturn on the sliding frame 42, when the support 44 overturns, the second motor 51 is started synchronously, the second motor 51 drives the second screw rod 52 to rotate, so that the inner lining sleeve 53 drives the capacitive pen on the inner lining sleeve 53 to rotate together through the meshing of the gear ring 54 and the second screw rod 52, the capacitive pen tip on the inner lining sleeve 53 can be adjusted to be combined with the signal receiving plate on the detection plate 3 by the control of the first motor 43 and the second motor 51 respectively, when the capacitive pen tip is combined with the signal receiving plate on the detection plate 3, the signal receiving plate receives the alternating current signal released by the capacitive pen;
[0055] The driving of the electric drive screw 41 enables the sliding frame 42 to drive the support 44 and the capacitive pen to move laterally above the detection plate 3. The rotation of the inner bushing tube 53 driven by the second motor 51 enables the detection plate 3 to detect the contact surface of the capacitive pen tip at 360°. The rotation of the support 44 driven by the first motor 43 enables the detection plate 3 to detect the contact of the capacitive pen tip at different inclination angles, so that the device can simulate various use scenarios to detect the capacitive pen, and ensure that the detected capacitive pen can maintain effective transmission under different use conditions.
[0056] When the single capacitive pen detection is completed, the staff removes the capacitive pen from the inner bushing tube 53, and then the support 44 is re-flipped to the inside of the shell 1. The support 44 will extrude the baffle 71 to both sides during the upward flipping process. The baffle 71 will move the rack 72 together during the sliding process inside the shell 1. The lateral movement of the rack 72 will engage and rotate the pinion 75 together. Because the pinion 75 is provided with a threaded slot 76 on the surface, and the sliding block 74 in the shell 1 slides on the threaded slot 76, the pinion 75 will slide to the side close to the inside of the shell 1 during the rotation process. The threaded slot 76 will move the first square plate 77 together, and the third spring 710 will be stretched and elastically stretched. The second square plate 78 moves together with the first square plate 77 and contacts the tip of the capacitive pen inside the shell 1. The capacitive pen inside the shell 1 is extruded by the second square plate 78 and slides on the inner bushing tube 53. When the capacitive pen slides to the flap 61, it will push the flap 61 to flip the flap 61. The flap 61 will push the first clamp plate 62 to extrude the pen body of the capacitive pen. At this time, because the top of the capacitive pen has been inserted into the end of the inner bushing tube 53, the extrusion of the first clamp plate 62 will fix the capacitive pen inside the inner bushing tube 53, thereby realizing the active feeding of the capacitive pen inside the shell 1 and reducing the operation process of the staff.
[0057] The first clamp plate 62 and the second clamp plate 66 respectively fix the upper and lower sides of the capacitive pen, so that the capacitive pen can be more stable during lateral movement, avoiding the problem of inaccurate signal reception caused by shaking of the pen body during lateral movement, and improving the accuracy of detection.
[0058] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it should be taken in a descriptive sense and not a limiting sense.
[0059] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made to the embodiments of the application without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims
1. An automatic testing fixture for a capacitive pen, comprising a housing (1), a discharge port (2), and a detection plate (3), wherein the discharge port (2) is located at the bottom of the housing (1), and the detection plate (3) is mounted below the housing (1), characterized in that, Also includes: The tilt adjustment module (4) includes an electric drive screw (41), a slide (42), a first motor (43), and a bracket (44). The electric drive screw (41) is installed at the bottom of the housing (1). The slide (42) is slidably connected to the outer wall of the electric drive screw (41). The first motor (43) is installed on the outer wall of the slide (42). The bracket (44) is installed at the output end of the first motor (43). The rotating module (5) includes a second motor (51), a second lead screw (52), an inner sleeve (53), a gear ring (54), and anti-slip strips (55). The second motor (51) is installed on the outer wall of the bracket (44), and the second lead screw (52) is installed on the output end of the second motor (51). The inner sleeve (53) is rotatably connected to the top of the bracket (44). The gear rings (54) are arranged in a ring array and fixedly connected to the outer wall of the inner sleeve (53). The anti-slip strips (55) are arranged in a linear array and fixedly connected to the outer wall of the inner sleeve (53). The fixing component (6) includes a slide rod (63), a turntable (64), a traction rope (65), and a second clamping plate (66). The slide rod (63) is slidably connected to the inside of the inner liner sleeve (53). The turntable (64) is rotatably connected inside the inner liner sleeve (53). The traction rope (65) is symmetrically wound around the outer wall of the turntable (64). The second clamping plate (66) is symmetrically slidably connected to the inside of the inner liner sleeve (53). The end of the traction rope (65) away from the turntable (64) is fixedly connected to the bottom of the second clamping plate (66). The propulsion assembly (7) includes a baffle (71), a rack (72), a round hole (73), a slider (74), a gear shaft (75), and a threaded groove (76). The baffle (71) is symmetrically slidably connected to the inside of the outer shell (1). The rack (72) is fixedly connected to one end of the baffle (71) located outside the outer shell (1). The round hole (73) is opened on the outer wall of the outer shell (1). The slider (74) is fixedly connected to the inside of the round hole (73). The gear shaft (75) is slidably connected to the inside of the round hole (73). The threaded groove (76) is opened on the outer wall of the gear shaft (75) and is adapted to the slider (74).
2. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: When the bracket (44) is inside the outer shell (1), it is horizontal to the bottom of the outer shell (1). When the bracket (44) is stored inside the outer shell (1), it will push the baffle (71), causing the symmetrical baffle (71) to slide into the outer shell (1) relatively far apart.
3. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: The second lead screw (52) and the toothed ring (54) mesh with each other, and the inner diameter of the inner liner sleeve (53) is equal to the diameter of the capacitive pen.
4. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: A folding plate (61) is rotatably connected to the side of the inner liner sleeve (53) away from the toothed ring (54). A first clamping plate (62) is slidably connected inside the inner liner sleeve (53) and on the side of the folding plate (61) near the toothed ring (54). A first spring (67) is fixedly connected between the bottom of the second clamping plate (66) and the inner wall of the inner liner sleeve (53). The bottom of the slide rod (63) is slidably connected to the inside of the turntable (64). The inner wall of the turntable (64) is provided with a threaded groove. The outer wall of the slide rod (63) is provided with a protrusion that matches the threaded groove of the inner wall of the turntable (64).
5. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: The threaded groove (76) is rotatably connected to a first square plate (77) at one end inside the outer shell (1). A third spring (710) is fixedly connected between the first square plate (77) and the inner wall of the outer shell (1). A second square plate (78) is slidably connected to the side of the first square plate (77) away from the third spring (710). A second spring (79) is fixedly connected between the second square plate (78) and the first square plate (77).
6. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: The outer casing (1) is provided with a sliding assembly (8), which includes a push plate (81) slidably connected to the inside of the outer casing (1). The outer wall of the push plate (81) is rotatably connected to a third lead screw (82), and the outer wall of the outer casing (1) is rotatably connected to a gear plate (83). The third lead screw (82) is threadedly connected to the inner wall of the gear plate (83).
7. The automatic testing fixture for a capacitive pen according to claim 1, characterized in that: A signal receiving board is mounted vertically at the bottom of the bracket (44) on the detection plate (3).