Multi-angle calibration testing device for electronic pen

Abstract

The invention relates to the technical field of testing devices, and discloses an electronic pen multi-angle calibration testing device which comprises a testing table. The limiting bearing mechanism is arranged on the test bench in a sliding manner and comprises at least one group of rotation driving pieces and limiting seats connected to the output ends of the rotation driving pieces; the pressure testing mechanism is erected above the limiting bearing mechanism and comprises a linear lifting assembly, at least one pressure adjusting assembly connected to the output end of the linear lifting assembly and a contact testing assembly; the supporting and adjusting mechanism is arranged below the test board and comprises a lifting and adjusting assembly and a supporting roller arranged at the output end of the lifting and adjusting assembly; after the limiting bearing mechanism adsorbs and loads the electronic pen and conducts angle adjustment, the supporting adjusting mechanism abuts against and supports the lower surface of the electronic pen, and after the contact testing assembly makes contact with the pressure adjusting assembly, the contact testing assembly presses the upper surface of the electronic pen to conduct multi-gear pressure calibration testing.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a multi-angle calibration testing device for an electronic pen. Background Technology

[0002] With the widespread application of styluses (also known as active pens or electronic pens) in drawing, note-taking, and design, users are increasingly demanding higher writing accuracy, pressure sensitivity, and overall user experience. The stress sensor integrated inside the pen body is the core component for achieving precise pressure control, and its performance directly determines the artistic expressiveness of the handwriting, such as thickness and density. Therefore, during the stylus manufacturing process, the pen body's stress sensor must undergo rigorous calibration testing to ensure a precise, linear, and repeatable correspondence between its output signal and the applied pressure.

[0003] Ideal calibration testing requires comprehensive data acquisition and calibration of the sensor under different pressure values ​​(such as from light touch to heavy pressure), different pressure application positions (such as pen tip, different sections of pen body), and different pressure application angles (simulating different pen grip postures). In view of this, those skilled in the art have designed a multi-angle calibration test device for electronic pens. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an electronic pen multi-angle calibration test device to achieve multi-pressure, multi-position, and multi-angle calibration tests on electronic pens.

[0005] The technical solution of the present invention is: an electronic pen multi-angle calibration test device, including a test platform; The limiting bearing mechanism is slidably disposed on the test platform, including at least one set of rotation driving components and a limiting seat connected to the output end of the rotation driving components. The limiting seat is provided with a limiting groove adapted to the electronic pen and a magnetic suction component. The pressure testing mechanism is mounted above the limiting bearing mechanism and includes a linear lifting assembly, at least one set of pressure regulating assemblies connected to the output end of the linear lifting assembly, and a contact testing assembly slidably disposed below the pressure regulating assembly. A support adjustment mechanism is provided below the test bench, including a lifting adjustment component and support rollers provided on the output end of the lifting adjustment component; After the limiting bearing mechanism adsorbs and loads the electronic pen and adjusts its angle, the support adjustment mechanism provides pressure support to the lower surface of the electronic pen. After the contact test component comes into contact with the pressure adjustment component, it presses the upper surface of the electronic pen to perform multi-level pressure calibration tests.

[0006] As can be seen from the above scheme, the limiting bearing mechanism is used to limit and support the electronic pen, the limiting groove is used to place the electronic pen, the magnetic suction component is used to magnetically attract the electronic pen, the rotation drive component is used to drive the electronic pen on the limiting seat to rotate, so that the pressure testing mechanism above can perform pressing tests on different positions of the electronic pen. The pressure testing mechanism is used to perform pressure tests on the electronic pen, the linear lifting module is used to drive the pressure adjustment component to move up and down, the pressure adjustment component is used to calibrate the downward pressure after contacting the contact testing component, and the support adjustment mechanism is used to support the bottom of the electronic pen below the limiting seat. This invention supports the pen body through the support adjustment mechanism to prevent the pen body from deforming during calibration testing. The rotation drive component clamps and rotates the pen to achieve multi-angle and multi-position calibration tests on the pen body stress sheet. This invention can achieve multi-pressure, multi-position, and multi-angle calibration tests.

[0007] The pressure regulating assembly includes a mounting plate and a counterweight cylinder fixed to the mounting plate. At least one counterweight is installed inside the counterweight cylinder. Several limiting holes are axially arranged inside the counterweight cylinder. A through hole communicating with the mounting plate is provided at the bottom of the counterweight cylinder. The diameter of the through hole is smaller than the diameter of the limiting holes, and the diameter of the limiting holes gradually decreases from top to bottom. Therefore, the counterweight cylinder is used to load at least one counterweight to adjust the downward pressure. The through hole allows the bottom end of the counterweight to extend and contact the contact testing assembly. The gradually decreasing diameter of the limiting holes from top to bottom allows for the installation of multiple counterweights.

[0008] The contact testing assembly includes a sensing mounting block, a stress sensor, and a contact pressure roller disposed below the stress sensor. The sensing mounting block is correspondingly disposed below the counterweight and slidably mounted on the mounting plate via a connector. The mounting plate has a stop below the connector. Therefore, the contact pressure roller is used to press down on the surface of the electronic pen body.

[0009] The counterweight includes an annular locking flange, a protrusion at the top of the annular locking flange, and a clearance groove at the bottom of the annular locking flange. The clearance groove is located below the protrusion. The counterweight is positioned on the mounting plate by the annular locking flange, and the end of the sensing mounting block is adapted to the clearance groove. Therefore, the top of the sensing mounting block contacts the clearance groove at the bottom of the counterweight, and the annular flange is used to limit its position within the limiting groove.

[0010] The limiting bearing mechanism also includes a front and rear linear feed module, which is mounted on the base. The rotation drive is connected to the output end of the front and rear linear feed module via a mounting plate. The mounting plate has a through groove corresponding to the middle of the electronic pen. The limiting seat is located on one side of the through groove. The mounting plate has a foolproof component on the other side of the through groove. The foolproof component includes a drive cylinder and a foolproof block connected to the output end of the drive cylinder. The foolproof block is connected to the output end of the drive cylinder. The foolproof block has a foolproof groove. An opening is provided on one side of the foolproof groove. The opening is located on the front side of the limiting groove. Guide slopes are provided on both sides of the opening. Therefore, the front and rear linear feed module is used to drive the limiting seat on the mounting plate to move back and forth on the machine base, thereby facilitating the loading and unloading of electronic pens. The foolproof component is used to limit the tip of the electronic pen through the foolproof groove. The opening is used to guide the pen during placement. The drive cylinder is used to drive the foolproof block to move back and forth along the axis of the electronic pen, thereby adapting to the limiting of the tip of electronic pens of different lengths.

[0011] The limiting and bearing mechanism further includes a limiting and pressing assembly, which includes a pushing cylinder, a retaining ring connected to the output end of the pushing cylinder, an end limiting block disposed on the retaining ring, and a pressing wheel elastically disposed at the bottom of the end limiting block. The pushing cylinder is connected to the mounting base plate. The retaining ring has a through groove at its center for the limiting seat to pass through. The pressing wheel extends out of the end limiting block and is disposed above the limiting seat. The two sides of the end limiting block are connected to the retaining ring by springs. Thus, the through groove is used for the limiting seat to pass through, the pushing cylinder drives the retaining ring to move along the axis of the electronic pen, and the pressing wheel, through the springs, elastically presses the electronic pen on the limiting seat downwards.

[0012] The lifting adjustment assembly also includes a lifting cylinder, a lifting plate connected to the output end of the lifting cylinder, at least one set of force-controlled motor linear modules disposed on the lifting plate, an adjustment structure connected to the output end of the force-controlled motor linear modules, and a second force sensor, wherein the support roller is disposed on top of the second force sensor.

[0013] The adjustment structure includes an adjustment fixing block, a first adjustment block disposed on the adjustment fixing block, and a second adjustment block disposed on the first adjustment block. The second force sensor is connected to the second adjustment block. Therefore, the first adjustment block is used for position adjustment in the X-axis direction on the adjustment fixing block, and the second adjustment block is used for position adjustment in the Y-axis direction on the first adjustment block.

[0014] The limiting seat has sliding grooves on both sides, and the retaining ring has sliding guide blocks that slide with the sliding grooves. The outer circumferential wall of the retaining ring has an annular groove. The output end of the pushing cylinder is connected to a locking block, and the locking block has locking posts on both sides that fit the annular groove. Therefore, the retaining ring is used to accommodate the rotation angle adjustment of the limiting seat. By rotating the retaining ring, the clamping wheel is always pressed against and limited against the upper surface of the limiting seat. The locking posts limit different positions of the annular groove, allowing the pushing cylinder to move forward and backward via the locking block. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the structure supporting the adjustment mechanism; Figure 4 This is a partial structural diagram of the supporting adjustment structure; Figure 5 This is a schematic diagram of the pressure testing mechanism; Figure 6 This is a partial structural diagram of the pressure testing mechanism; Figure 7 This is a cross-sectional view of the pressure testing mechanism; Figure 8 This is an exploded view of the pressure testing facility; Figure 9 This is a schematic diagram of the limiting and bearing mechanism; Figure 10 This is a schematic diagram of the limiting and clamping assembly; Figure 11 This is a schematic diagram of the limit seat; Figure 12 This is a schematic diagram of the electronic pen. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] like Figures 1 to 12 As shown, the present invention is a multi-angle calibration test device for an electronic pen, including a test platform 1; The limiting bearing mechanism is slidably disposed on the test platform 1, including at least one set of rotation drive components 2 and a limiting seat 3 connected to the output end of the rotation drive component 2. The limiting seat 3 is provided with a limiting groove 31 adapted to the electronic pen and a magnetic suction component 32. The pressure testing mechanism is mounted above the limiting bearing mechanism and includes a linear lifting assembly 4, at least one set of pressure regulating assemblies 5 connected to the output end of the linear lifting assembly 4, and a contact testing assembly 6 slidably disposed below the pressure regulating assembly 5. A support adjustment mechanism is provided below the test bench 1, including a lifting adjustment component 7 and a support roller 71 provided on the output end of the lifting adjustment component 7, which is used to prevent pen body deformation from affecting the data during calibration testing. After the limiting bearing mechanism adsorbs and loads the electronic pen and adjusts its angle, the support adjustment mechanism provides pressure support to the lower surface of the electronic pen. After the contact test component 6 contacts the pressure adjustment component 5, it presses the upper surface of the electronic pen to perform multi-level pressure calibration tests.

[0018] In this embodiment, the electronic pen includes a pen body 100, a pen tip 110, and a tail 120. A magnetic suction element 32 is provided at the bottom of the limiting groove 31 to attract the electronic pen during placement. The length of the limiting seat 3 is less than the length of the electronic pen. The pen body extends out of the limiting groove 31, and the pen tip 110 is limited within the anti-foolproof groove 131. A through groove 111 on the mounting plate 11 is correspondingly located below the exposed pen body portion. The test platform 1 is located on the base 210, and a housing 220 is provided on the base 1. A display screen 230 is provided on the housing 220. An opening 240 is provided on the front side of the housing 220 for the linear feed module 15 to drive the limiting support mechanism to move back and forth, facilitating the loading of the electronic pen. Safety light curtains are provided on both sides of the opening 240. (The electronic pen vault is mentioned here.) The pressure regulating assembly 5 includes a mounting plate 51 and a counterweight cylinder 52 fixed on the mounting plate 51. At least one counterweight 54 is installed inside the counterweight cylinder 52. Several limiting holes 521 are axially arranged inside the counterweight cylinder 52. A through hole 522 communicating with the mounting plate 51 is provided at the bottom of the counterweight cylinder 52. The diameter of the through hole 522 is smaller than the diameter of the limiting holes 521, and the diameter of the limiting holes 521 gradually decreases from top to bottom. In this embodiment, four limiting holes 521 are provided, maximizing the installation of four counterweights. The counterweight 54 uses a 150-gram weight, thereby achieving multi-level pressure testing and adjustment. A protrusion is formed between two adjacent limiting holes inside the counterweight cylinder 52. The lower surface of the annular retaining flange 541 of the counterweight 54 contacts the protrusion, thereby achieving the bearing installation of the counterweight 54 inside the counterweight cylinder 52.

[0019] The contact test assembly 6 includes a sensing mounting block 61, a stress sensor 62, and a contact pressure roller 63 disposed below the stress sensor 62. The sensing mounting block 61 is disposed below the counterweight 54 and is slidably disposed on the mounting plate 51 via a connector 64. The mounting plate 51 is provided with a stop 511 below the connector 64. The stop 511 is used to achieve a stop and prevent the contact test assembly 6 from sliding down the mounting plate 51.

[0020] The counterweight 54 includes an annular locking flange 541, a protrusion 542 disposed on the top of the annular locking flange 541, and a clearance groove 543 disposed on the bottom of the annular locking flange 541. The clearance groove 543 is correspondingly disposed below the protrusion 542. The counterweight 54 is limited on the mounting plate 51 by the annular locking flange 541. The end of the sensing mounting block 61 is adapted to the clearance groove 543. In this embodiment, the clearance groove 543 is adapted to the protrusion 542 of the counterweight 54 adjacent to its bottom. After the sensing mounting block 61 extends into the clearance groove 543 of the upper corresponding counterweight 54, the protrusion 542 of the lower counterweight 54 is inserted into the clearance groove 543 of the upper counterweight, thereby enabling the sensing mounting block 61 to connect with multiple counterweights and increasing the pressing pressure on the electronic pen.

[0021] The limiting bearing mechanism also includes a front and rear linear feed module 15, which is mounted on the base 1. The rotation drive 2 is connected to the output end of the front and rear linear feed module 15 via a mounting plate 11. A through groove 111 is provided on the mounting plate 11 corresponding to the middle of the electronic pen. The limiting seat 3 is located on one side of the through groove 111. The mounting plate 11 is provided with a foolproof component on the other side of the through groove 111. The foolproof component includes a drive cylinder 12 and a foolproof block 13 connected to the output end of the drive cylinder 12. The foolproof block 13 is connected to the output end of the drive cylinder 12. A foolproof groove 131 is provided on the foolproof block 13. An opening is provided on one side of the foolproof groove 131. The opening is located on the front side of the limiting groove 31. Guide slopes are provided on both sides of the opening.

[0022] The limiting bearing mechanism further includes a limiting clamping assembly 8, which includes a pushing cylinder 81, a retaining ring 82 connected to the output end of the pushing cylinder 81, an end limiting block 83 disposed on the retaining ring 82, and a clamping wheel 84 elastically disposed at the bottom of the end limiting block 83. The pushing cylinder 81 is connected to the mounting base plate 2. The retaining ring 82 has a through groove 821 in the center for the limiting seat 3 to pass through. The clamping wheel 84 extends out of the end limiting block 83 and is disposed above the limiting seat 3. The two sides of the end limiting block 83 are connected to the retaining ring 82 by springs 85.

[0023] The lifting adjustment assembly also includes a lifting cylinder 72, a lifting plate 73 connected to the output end of the lifting cylinder 72, at least one set of force-controlled motor linear modules 74 disposed on the lifting plate 73, an adjustment structure connected to the output end of the force-controlled motor linear modules 74, and a second force sensor 77, wherein the support roller 71 is disposed on the top of the second force sensor 77.

[0024] The adjustment structure includes an adjustment fixing block 75, a first adjustment block 761 disposed on the adjustment fixing block 75, and a second adjustment block 762 disposed on the first adjustment block 761, wherein the second force sensor 77 is connected to the second adjustment block 762.

[0025] The limiting seat 3 has sliding grooves on both sides, and the retaining ring 82 has a sliding guide block 822 that slides with the sliding grooves. The outer circumferential wall of the retaining ring 82 has an annular groove 823. The output end of the pushing cylinder 81 is connected to a locking block 811. The locking block 811 has locking posts on both sides that are adapted to the annular groove 823. During multi-angle testing, the rotating drive 2 drives the limiting seat 3 to rotate to the set test angle. At the same time, the retaining ring 82 rotates with the limiting seat 3. During rotation, the locking posts are locked at different positions in the annular groove 823 on the outer wall of the retaining ring 82, so that the pressure wheel 84 always keeps the pressure on the upper surface of the tail 120 of the electronic pen.

[0026] The workflow of this invention is as follows: The front and rear linear feed module 15 drives the limiting seat 3 to move linearly, moving several limiting seats 3 on the mounting plate 11 out of the opening 230. The electronic pen is placed in the limiting groove 31 of the limiting seat 3 and is attracted and limited by the magnetic suction component 32. The end of the electronic pen abuts against the limiting groove 31, and the pen body 100 of the electronic pen extends out of the limiting groove and is suspended in the air. The drive cylinder 12 drives the anti-foolproof block 12 to move linearly, and the pen tip 110 of the electronic pen is limited in the anti-foolproof groove by the guide slope at the end of the opening. The push cylinder 81 drives the retaining ring component 82 to move forward, and the pressing wheel 84 moves downward to the electronic pen in the limiting groove 31. The pen is elastically pressed at the tail 120 within the limiting groove 31. After the front and rear linear feed module 15 moves the mounting plate 11 in, the lifting cylinder 72 moves the lifting plate 73 upward. The force control motor linear module 72 drives the support roller 71 to move upward, thereby supporting the lower surface of the electronic pen. The linear lifting component 4 moves the counterweight cylinder 52 downward. The counterweight 54 inside the counterweight cylinder 52 moves downward to match the sensing mounting block 61. After the end of the sensing mounting block 61 contacts and is inserted into the clearance groove 543 at the bottom of the counterweight 54, it drives the contact pressure roller 63 to move downward, thereby pressing down on the surface of the pen body 100 to achieve pressure testing.

[0027] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-angle calibration and testing device for an electronic pen, characterized in that, include Test stand (1); The limiting bearing mechanism is slidably disposed on the test platform (1), including at least one set of rotating drive components (2) and a limiting seat (3) connected to the output end of the rotating drive component (2). The limiting seat (3) is provided with a limiting groove (31) adapted to the electronic pen and a magnetic suction component (32). The pressure testing mechanism is mounted above the limiting bearing mechanism and includes a linear lifting assembly (4), at least one set of pressure regulating assemblies (5) connected to the output end of the linear lifting assembly (4), and a contact testing assembly (6) slidably disposed below the pressure regulating assembly (5). The support adjustment mechanism is located below the test bench (1) and includes a lifting adjustment component (7) and a support roller (71) located on the output end of the lifting adjustment component (7). After the limiting bearing mechanism adsorbs and loads the electronic pen and adjusts the angle, the support adjustment mechanism provides pressure support to the lower surface of the electronic pen. After the contact test component (6) contacts the pressure adjustment component (5), it presses the upper surface of the electronic pen to perform multi-level pressure calibration test.

2. The multi-angle calibration and testing device for an electronic pen according to claim 1, characterized in that, The pressure regulating assembly (5) includes a mounting plate (51) and a counterweight cylinder (52) fixed on the mounting plate (51). The counterweight cylinder (52) is equipped with at least one counterweight (54). The interior of the counterweight cylinder (52) is provided with a plurality of limiting holes (521) along the axial direction. The bottom of the counterweight cylinder (52) is provided with a through hole (522) communicating with the mounting plate (51). The diameter of the through hole (522) is smaller than the diameter of the limiting hole (521). The diameter of the limiting hole (521) gradually decreases from top to bottom.

3. The multi-angle calibration and testing device for an electronic pen according to claim 2, characterized in that, The contact test assembly (6) includes a sensing mounting block (61), a stress sensor (62), and a contact pressure roller (63) disposed below the stress sensor (62). The sensing mounting block (61) is disposed below the counterweight (54) and is slidably disposed on the mounting plate (51) via a connector (64). The mounting plate (51) has a stop (511) below the connector (64).

4. The multi-angle calibration and testing device for an electronic pen according to claim 3, characterized in that, The counterweight (54) includes an annular locking flange (541), a protrusion (542) disposed on the top of the annular locking flange (541), and a clearance groove (543) disposed on the bottom of the annular locking flange (541). The clearance groove (543) is disposed below the protrusion (542). The counterweight (54) is limited on the mounting plate (51) by the annular locking flange (541). The end of the sensing mounting block (61) is adapted to the clearance groove (543).

5. The multi-angle calibration and testing device for an electronic pen according to claim 1, characterized in that, The limiting bearing mechanism also includes a front and rear linear feed module (15), which is mounted on the base (1). The rotation drive (2) is connected to the output end of the front and rear linear feed module (15) via a mounting plate (11). A through groove (111) is provided on the mounting plate (11) corresponding to the middle of the electronic pen. The limiting seat (3) is located on one side of the through groove (111). The mounting plate (11) is provided with a foolproof component on the other side of the through groove (111). The foolproof component includes a drive cylinder (12) and a foolproof block (13) connected to the output end of the drive cylinder (12). The foolproof block (13) is connected to the output end of the drive cylinder (12). A foolproof groove (131) is provided on the foolproof block (13). An opening is provided on one side of the foolproof groove (131). The opening is correspondingly located on the front side of the limiting groove (31). An inlet ramp is provided on both sides of the opening.

6. The multi-angle calibration and testing device for an electronic pen according to claim 1, characterized in that, The limiting bearing mechanism further includes a limiting clamping assembly (8), which includes a pushing cylinder (81), a retaining ring (82) connected to the output end of the pushing cylinder (81), an end limiting block (83) set on the retaining ring (82), and a clamping wheel (84) elastically set at the bottom of the end limiting block (83). The pushing cylinder (81) is connected to the mounting base plate (11). The retaining ring (82) has a through groove (821) in the center for the limiting seat (3) to pass through. The clamping wheel (84) extends out of the end limiting block (83) and is correspondingly set above the limiting seat (3). The two sides of the end limiting block (83) are connected to the retaining ring (82) through springs (85).

7. The multi-angle calibration and testing device for an electronic pen according to claim 1, characterized in that, The lifting adjustment assembly also includes a lifting cylinder (72), a lifting plate (73) connected to the output end of the lifting cylinder (72), at least one set of force control motor linear modules (74) disposed on the lifting plate (73), an adjustment structure connected to the output end of the force control motor linear modules (74), and a second force sensor (77), wherein the support roller (71) is disposed on the top of the second force sensor (77).

8. The multi-angle calibration and testing device for an electronic pen according to claim 7, characterized in that, The adjustment structure includes an adjustment fixing block (75), a first adjustment block (761) disposed on the adjustment fixing block (75), and a second adjustment block (762) disposed on the first adjustment block (761), wherein the second force sensor (77) is connected to the second adjustment block (762).

9. The multi-angle calibration and testing device for an electronic pen according to claim 6, characterized in that, The limiting seat (3) is provided with sliding grooves on both sides, and the retaining ring (82) is provided with a sliding guide block (822) that slides with the sliding groove. The outer circumferential wall of the retaining ring (82) is provided with an annular groove (823). The output end of the pusher cylinder (81) is connected to a locking block (811). The locking block (811) is provided with locking posts on both sides that are adapted to the annular groove (823).

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