Calibration jig for intelligent pen

Abstract

The utility model discloses a calibration jig for an intelligent pen. The calibration jig comprises a weight; the clamp is provided with a mounting hole position for mounting the intelligent pen; the plate part is provided with a groove position for placing the weight, and the plate part is provided with a through hole communicated with the groove position; the plate part is located above the clamp, and the groove position corresponds to the mounting hole position in the vertical direction; the clamp and the plate part can move relatively in the vertical direction so that the pen point of the intelligent pen can jack up the weight through the through hole. The calibration jig can realize pressure-sensitive calibration of the intelligent pen, and is convenient to operate and simple in structure.

Description

Technical Field

[0001] The present application relates to the technical field of smart pen calibration, and in particular to a calibration jig for a smart pen. Background Art

[0002] Smart pens are generally equipped with a pressure-sensitive element, which detects the writing pressure of the pen tip during writing and displays the written content on the display screen.

[0003] The smart pen's pressure sensor is located at the end of the refill (away from the pen tip). This triggers the pressure sensor during writing. Components such as springs are installed between the refill and the pressure sensor. After assembly, these components affect the standard pressure detected by the pressure sensor. Standard pressure refers to the minimum pressure required for the refill to trigger the pressure sensor.

[0004] In addition, when the pen core is assembled, the friction between the pen core and the pen body channel will also affect the pressure sensing element's detection of writing pressure.

[0005] Before shipping, smart pens require calibration of their pressure-sensing components to ensure consistent product quality. Providing a calibration jig that facilitates pressure-sensing calibration of smart pens is a current challenge facing those skilled in the art. Utility Model Content

[0006] The purpose of this application is to provide a calibration jig for a smart pen, which can realize pressure sensitivity calibration of the smart pen, is easy to operate and has a simple structure.

[0007] To solve the above technical problems, the present application provides a calibration jig for a smart pen, comprising:

[0008] weights;

[0009] A fixture having mounting holes for mounting the smart pen;

[0010] The plate portion has a slot for placing the weight, and the plate portion has a through hole that penetrates the slot; the plate portion is located above the clamp, and the slot corresponds to the mounting hole in a vertical position;

[0011] The clamp and the plate portion can move relative to each other in the vertical direction, so that the tip of the smart pen can lift the weight through the through hole.

[0012] In one feasible solution, the calibration jig includes a mounting frame and a driving component, the driving component is installed on the mounting frame, and the driving component includes a telescopic portion that can be raised and lowered vertically; one of the clamp and the plate portion is a fixed component, and the other is a movable component, the fixed component is fixedly connected to the mounting frame, and the movable component is connected to the telescopic portion.

[0013] In a feasible solution, a guide structure is provided between the movable component and the mounting frame, and the guide structure is used to guide the vertical movement of the movable component.

[0014] In one feasible solution, the guide structure includes a guide rod and a guide cylinder, one of the guide rod and the guide cylinder is fixedly connected to the mounting frame, the other of the guide rod and the guide cylinder is fixedly connected to the movable component, and the guide rod is slidably inserted into the guide cylinder.

[0015] In a feasible solution, a limit member is provided on the mounting frame, and the limit member is used to limit the extreme position of the movable member moving toward the fixed member, and one of the guide rod and the guide cylinder is fixedly connected to the limit member.

[0016] In one feasible solution, a limit member is provided on the mounting frame, and the limit member is used to limit the extreme position of the movable component moving toward the fixed component; when the movable component is in the extreme position, the tip of the smart pen installed in the mounting hole passes through the through hole and is located in the slot.

[0017] In one feasible solution, the clamp is the fixed component, and the plate portion is the movable component.

[0018] In one feasible solution, the mounting frame includes a base, a controller is installed in the inner cavity of the base, the controller is communicatively connected to the driving component, and a control component is also provided on the outer wall of the base, the control component is communicatively connected to the controller, and the control component is used to send a signal to the controller to control the action of the driving component.

[0019] In one feasible solution, the controller includes a first communication module for communicating with the smart pen, and the controller also includes a processing module for processing and storing pressure information collected by the smart pen.

[0020] In one feasible solution, the controller further includes a second communication module, and the second communication module is used to communicate with an external electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A front view of a calibration jig according to an embodiment of the present application is provided;

[0022] Figure 2 for Figure 1 Top view of the calibration fixture shown.

[0023] Description of reference numerals:

[0024] The clamp 10 , the plate 20 , the slot 21 , the through hole 22 , the weight 30 , the mounting frame 40 , the base 41 , the vertical plate 42 , the driving component 50 , the fixing portion 51 , the telescopic portion 52 , the guide structure 60 , the guide rod 61 , the guide cylinder 62 , and the limiter 70 . DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Please refer to Figure 1 and Figure 2 , Figure 1 This is a front view of a calibration fixture provided in an embodiment of the present application. Figure 2 for Figure 1 Top view of the calibration fixture shown.

[0027] The calibration jig provided in this embodiment is used to calibrate the pressure sensitivity of a smart pen (not shown in the figure). Specifically, the calibration jig is used to calibrate the magnitude of the pressure sensed by the pressure sensing element of the smart pen.

[0028] In practical applications, the smart pen may be a calligraphy pen, a touch pen, or other pen containing a pressure-sensitive element.

[0029] In this embodiment, the calibration jig includes a fixture 10, a plate 20, and a weight 30. The fixture 10 has a mounting hole (not shown) for mounting the smart pen to be calibrated. The plate 20 has a slot 21 for placing the weight 30 and a through-hole 22 extending through the slot 21. The plate 20 is positioned above the fixture 10, with the slot 21 and the mounting hole of the fixture 10 corresponding vertically. The fixture 10 and the plate 20 are capable of relative movement in the vertical direction (hereinafter referred to as the vertical direction) so that the tip of the smart pen lifts the weight 30 placed in the slot 21 through the through-hole 22. It is understood that the through-hole 22 and the mounting hole of the fixture 10 also correspond vertically.

[0030] The provision of the through hole 22 and the slot 21 enables the plate portion 20 to provide support for the weight 30 , and the weight 30 will not fall from the through hole 22 .

[0031] When using the calibration jig, the smart pen is mounted in an inverted position in the mounting hole of the fixture 10, with the pen tip facing upward. A weight 30 is placed in the slot 21 of the plate 20. The plate 20 and fixture 10 are then moved vertically relative to each other, allowing the pen tip to enter the through-hole 22, contact the weight 30, and lift it. After the pen tip lifts the weight 30, it is subjected to pressure from the weight 30, which is detected by the pressure-sensing element of the smart pen. Since the weight of the weight 30 is known, the detection information of the pressure-sensing element can be compared with the weight of the weight 30, thereby calibrating the pressure sensitivity of the smart pen. In actual application, multiple operations can be performed to verify the effectiveness and reliability of the calibration.

[0032] There can be multiple weights 30 , wherein the weight of at least one weight 30 is related to the standard pressure of the smart pen to be calibrated, that is, the weight of at least one weight 30 matches the minimum pressure value that can be detected by the pressure-sensitive element of the smart pen.

[0033] By adopting the above scheme, the smart pen is inverted through the cooperation of the clamp 10, the plate 20 and the weight 30, and the weight 30 is used to apply a fixed pressure to the tip of the smart pen to achieve pressure detection. This calibration fixture can realize pressure sensitivity calibration of the smart pen, is easy to operate, and has a simple structure, which is conducive to reducing costs.

[0034] In one embodiment, the calibration fixture includes a mounting frame 40 and a driving component 50, the driving component 50 is installed on the mounting frame 40, and the driving component 50 includes a telescopic portion 52 that can be raised and lowered vertically; one of the clamp 10 and the plate portion 20 is a fixed component, and the other is a movable component, the fixed component is fixedly connected to the mounting frame 40, and the movable component is connected to the telescopic portion 52 of the driving component 50.

[0035] In this way, the telescopic portion 52 of the driving component 50 can drive the movable component to telescope together when telescoping, thereby achieving vertical movement relative to the fixed component. After the driving component 50 is installed on the mounting frame 40, the telescopic direction of the telescopic portion 52 is along the vertical direction.

[0036] The following describes the specific structure of the calibration fixture in detail, with the fixture 10 as the fixed component and the plate 20 as the movable component. In other embodiments, the fixture 10 can also be used as the movable component and the plate 20 can also be used as the fixed component, and other related structures can be adaptively adjusted and matched.

[0037] In some embodiments, the mounting frame 40 includes a base 41 and a vertical plate 42 , and the vertical plate 42 is fixed on the top of the base 41 .

[0038] The clamp 10 is fixedly mounted on the top of the base 41. In a specific implementation, the clamp 10 can be detachably connected to the base 41, allowing for easy replacement of the clamp 10 with smart pens of different sizes, or for replacement or maintenance as needed. The detachable connection can be achieved using fasteners such as screws.

[0039] The driving component 50 further includes a fixing portion 51 , and the telescopic portion 52 can vertically telescope relative to the fixing portion 51 . The fixing portion 51 of the driving component 50 is mounted on the mounting bracket 40 .

[0040] In the illustrated embodiment, the fixing portion 51 of the driving component 50 is fixed to the vertical plate 42. In other embodiments, the fixing portion 51 of the driving component 50 may also be fixed to the base 41.

[0041] In the illustrated embodiment, the driving component 50 is located below the plate portion 20, and the plate portion 20 is connected to the top end of the telescopic portion 52. When the telescopic portion 52 extends upward, it drives the plate portion 20 to move upward to move away from the clamp 10. When the telescopic portion 52 retracts downward, it drives the plate portion 20 to move downward to move closer to the clamp 10.

[0042] In other embodiments, the driving component 50 may also be located above the plate portion 20. In this case, the plate portion 20 is connected to the bottom end of the telescopic portion 52. When the telescopic portion 52 extends downward, it drives the plate portion 20 to move downward to approach the clamp 10. When the telescopic portion 52 retracts upward, it drives the plate portion 20 to move upward to move away from the clamp 10.

[0043] In a specific implementation, the driving component 50 and the slot 21 of the plate portion 20 are staggered to prevent the driving component 50 from interfering with the pressure sensitivity calibration of the smart pen.

[0044] For example, the driving component 50 may be a pneumatic cylinder, a hydraulic telescopic cylinder, an electric telescopic cylinder, or the like.

[0045] In this embodiment, a guide structure 60 is provided between the movable plate 20 and the mounting bracket 40. This guide structure 60 is used to guide the vertical movement of the plate 20. This ensures that the slot 21 of the plate 20 corresponds to the position of the smart pen mounted on the fixture 10, ensuring that the weight 30 can apply pressure to the tip of the smart pen.

[0046] In some embodiments, the guide structure 60 includes a guide rod 61 and a guide cylinder 62. One of the guide rod 61 and the guide cylinder 62 is fixedly connected to the mounting bracket 40, and the other of the guide rod 61 and the guide cylinder 62 is fixedly connected to the plate portion 20. The guide rod 61 is slidably inserted into the guide cylinder 62. It will be understood that the axes of the guide rod 61 and the guide cylinder 62 both extend in the vertical direction.

[0047] With such arrangement, when the driving component 50 drives the plate portion 20 to vertically move up and down, under the guidance constraint of the guide rod 61 and the guide cylinder 62 , the directional accuracy of the moving up and down of the plate portion 20 can be ensured.

[0048] In the illustrated example, the guide rod 61 is fixedly connected to the mounting frame 40, and the guide cylinder 62 is fixedly connected to the plate portion 20. The guide cylinder 62 is specifically embedded in the plate portion 20. The guide rod 61 is specifically fixedly connected to the vertical plate 42 of the mounting frame 40. In other examples, the guide rod 61 can also be fixedly connected to the base 41.

[0049] In other examples, the guide rod 61 may also be fixedly connected to the plate portion 20 , and the guide cylinder 62 may be fixedly connected to the mounting bracket 42 .

[0050] In a specific implementation, the guide rod 61 and the guide cylinder 62 that cooperate with each other can be provided in one group or in two groups (e.g. Figure 1 and Figure 2 As shown in the figure), you can also set other numbers such as three groups.

[0051] In other embodiments, the guide structure 60 can also be in the form of a slider and a slide groove. For example, a slider is installed on the plate portion 20, and a slide groove extending vertically is provided on the vertical plate 42 of the mounting frame 40, and the slider can slide along the slide groove.

[0052] In this embodiment, a limiting member 70 is further provided on the mounting frame 40 , and the limiting member 70 is used to limit the limit position of the plate portion 20 moving toward the direction where the clamp 10 is located.

[0053] The limiting member 70 is located below the plate portion 20 . When the plate portion 20 moves downward under the drive of the driving component 50 and abuts against the limiting member 70 , it cannot move further downward. This position is the aforementioned limit position.

[0054] The positions of the clamp 10 and the mounting frame 40 are fixed. To ensure that when the plate portion 20 moves down to the extreme position against the limit member 70, the tip of the smart pen installed on the clamp 10 can be pressed by the weight 30, when the plate portion 20 is at the extreme position, the tip of the smart pen installed on the clamp 10 passes through the through hole of the plate portion 20 and is located in the slot, that is, the tip of the smart pen has lifted the weight and can bear the full weight of the weight 30.

[0055] The setting of the limiting member 70 can determine the downward position of the plate portion 20 during each operation, thereby preventing the plate portion 20 from moving downward excessively and causing damage to the smart pen.

[0056] In some embodiments, the stopper 70 can be fixedly connected to a component of the guide structure 60 that is fixed to the mounting bracket 40. Taking the illustrated embodiment as an example, the stopper 70 is fixedly connected to the guide rod 61. In actual application, the stopper 70 and the guide rod 61 can be an integral structure, and the guide rod 61 is fixedly connected to the vertical plate 42 through the stopper 70.

[0057] In other embodiments, the limiting member 70 and the guiding structure 60 may also be provided independently.

[0058] In the illustrated example, two guide structures 60 are provided, located on both sides of the driving component 50 respectively. Correspondingly, two limit members 70 are also provided, which are respectively connected to the guide rods 61 of the two guide structures 60 as a whole.

[0059] In this embodiment, a controller can be installed within the inner cavity of the base 41 of the mounting frame 40, which is in communication with the drive component 50. A control component can be provided on the outer wall of the base 41, which is in communication with the drive component 50 and is used to send signals to the controller to control the operation of the drive component 50. This allows for a higher level of integration of the calibration jig while minimizing space requirements.

[0060] In some embodiments, the control component may include a switch assembly, which may include an on / off switch, which may be used to control the start and stop of the drive component 50. The switch assembly may also include an emergency stop switch, which may be used to control the emergency stop of the drive component 50 in an emergency or unexpected situation.

[0061] In some embodiments, the control component may also be a touch screen, and the actions of controlling the driving component 50 are sent to the controller through operations on the touch screen.

[0062] In some embodiments, the controller includes a first communication module for communicating with the smart pen, and the controller further includes a processing module for processing and storing pressure information collected by the smart pen.

[0063] Exemplarily, the first communication module may be a wireless communication module, or an external communication interface formed on the side wall of the base 41, such as a magnetic interface, etc. The smart pen may be connected to the controller for communication via the external communication interface.

[0064] During use, when the tip of the smart pen lifts the weight 30, the pressure-sensing element of the smart pen can collect information about the pressure applied by the weight 30 to the tip of the pen. The smart pen can then feed this information back to the processing module of the controller. After processing, the processing module compares it with the actual weight of the weight 30 to obtain a calibration coefficient for the pressure-sensing element. This calibration coefficient can also be verified through a second or third test.

[0065] The following is an example of an actual application operation process. First, the control component controls the driving component 50 to raise the plate 20 to prevent the plate 20 from being in a position that interferes with the installation of the smart pen. The smart pen to be calibrated is installed in the installation hole of the fixture 10, and the weight 30 is placed in the slot 21 of the plate 20. The control component controls the driving component 50 to drive the plate 20 to the extreme position abutting against the limit member 70. At this time, the smart pen lifts the weight 30, and a collection signal of the pressure sensing element of the smart pen can be collected. After processing, a first detection value of the pressure by the pressure sensing element is obtained. The calibration coefficient can be obtained by combining the first detection value and the actual weight of the weight 30. Then, the previous operation is repeated, so that the smart pen lifts the weight 30 for the second time, and a second detection value of the pressure sensing element is obtained. After multiplying the second detection value by the calibration coefficient, it is compared with the actual weight of the weight 30. If the difference between the two is within a reasonable error range, the calibration is considered to be valid and accurate.

[0066] The weight 30 used for the first calibration may be a weight 30 that matches the standard pressure of the smart pen, and the weight 30 used for the second calibration may be a weight of other weight.

[0067] In some embodiments, the controller further includes a second communication module configured to communicate with an external electronic device. The external electronic device may be a computer, for example. The controller can transmit signals collected by the smart pen to the external electronic device via the second communication module, and the external electronic device can process the collected signals and calculate calibration coefficients.

[0068] The second communication module may be a wireless communication module, or an external communication interface formed on the side wall of the base 41 , such as a USB interface.

[0069] In the illustrated example, the plate 20 has a slot 21, and the fixture 10 has a corresponding mounting hole. In other embodiments, the plate 20 may have two or more slots 21, each with a corresponding through-hole 22. The fixture 10 may also have mounting holes matching the number and location of slots 21, allowing pressure sensitivity calibration for two or more smart pens simultaneously. The calibration process and operation are the same as described above and will not be repeated here.

[0070] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A calibration jig for a smart pen, characterized in that: include: weights; A fixture having mounting holes for mounting the smart pen; The plate portion has a slot for placing the weight, and the plate portion has a through hole that penetrates the slot; the plate portion is located above the clamp, and the slot corresponds to the mounting hole in a vertical position; The clamp and the plate portion can move relative to each other in the vertical direction, so that the tip of the smart pen can lift the weight through the through hole.

2. The calibration jig according to claim 1, characterized in that: The calibration jig includes a mounting frame and a driving component, the driving component is installed on the mounting frame, and the driving component includes a telescopic part that can be raised and lowered vertically; one of the clamp and the plate is a fixed component, and the other is a movable component, the fixed component is fixedly connected to the mounting frame, and the movable component is connected to the telescopic part.

3. The calibration jig according to claim 2, characterized in that: A guide structure is provided between the movable component and the mounting frame, and the guide structure is used to guide the vertical movement of the movable component.

4. The calibration jig according to claim 3, characterized in that: The guide structure includes a guide rod and a guide cylinder, one of the guide rod and the guide cylinder is fixedly connected to the mounting frame, the other of the guide rod and the guide cylinder is fixedly connected to the movable component, and the guide rod is slidably inserted into the guide cylinder.

5. The calibration jig according to claim 4, characterized in that: A limiting member is provided on the mounting frame, and the limiting member is used to limit the extreme position of the movable member moving toward the fixed member, and one of the guide rod and the guide cylinder is fixedly connected to the limiting member.

6. The calibration jig according to claim 2, characterized in that: A limit member is provided on the mounting frame, and the limit member is used to limit the extreme position of the movable component moving toward the fixed component; when the movable component is in the extreme position, the tip of the smart pen installed in the mounting hole passes through the through hole and is located in the slot.

7. The calibration jig according to any one of claims 2 to 6, characterized in that: The clamp is the fixed component, and the plate portion is the movable component.

8. The calibration jig according to any one of claims 2 to 6, characterized in that: The mounting bracket includes a base, an inner cavity of the base is installed with a controller, the controller is communicatively connected to the driving component, and the outer wall of the base is also provided with a control component, the control component is communicatively connected to the controller, and the control component is used to send a signal to the controller to control the action of the driving component.

9. The calibration jig according to claim 8, characterized in that: The controller includes a first communication module for communicating with the smart pen. The controller also includes a processing module for processing and storing pressure information collected by the smart pen.

10. The calibration jig according to claim 9, characterized in that: The controller further includes a second communication module, and the second communication module is used for communicating with an external electronic device.

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