Small high-precision laser wire diameter measurement sensor

Abstract

The utility model discloses a small-sized high-precision laser wire diameter measuring sensor, which comprises a shell, a U-shaped wire loading groove is arranged in the middle of the shell, a PCBA (Printed Circuit Board Assembly) is arranged in the shell, two groups of measuring modules are integrated on the PCBA, each measuring module comprises a transmitting unit and a receiving unit, and the transmitting units and the receiving units are connected with the PCBA. The output directions of the two emitting units are perpendicular to each other, and the light intersection point of the two emitting units is located on the perpendicular line of the wire loading groove. According to the utility model, the wire is placed at the bottom of the wire loading groove, the diameter of the wire is measured through the two groups of mutually perpendicular measuring modules, and light rays emitted by the emitting units of the two groups of measuring modules are mutually perpendicular and intersect at the position where the wire is placed at the bottom of the wire loading groove, so that the diameter of the wire is measured. The device has the characteristics of high precision and small size.

Description

Technical Field

[0001] The present disclosure relates to the field of sensor technology, and in particular to a small-sized high-precision laser wire diameter measurement sensor. Background Art

[0002] Wire diameter measuring sensors are tools used to accurately measure wire diameters. Currently, most wire diameter measuring sensors use the photoelectric measurement principle and can perform measurements through electromagnetic induction, infrared, ultrasonic waves, or lasers.

[0003] The current wire measurement sensors are large in size and have problems such as low integration and low measurement accuracy. Utility Model Content

[0004] The present disclosure provides a small, high-precision laser wire diameter measurement sensor to solve one of the technical problems recognized by the inventors.

[0005] The present disclosure provides a small, high-precision laser wire diameter measurement sensor, comprising a shell, a U-shaped wire loading slot being provided in the middle of the shell, a PCBA being provided inside the shell, two sets of measurement modules being integrated on the PCBA, the measurement modules comprising a transmitting unit and a receiving unit, the output directions of the two transmitting units being perpendicular to each other, and the intersection point of the light rays of the two transmitting units being located on a vertical line of the wire loading slot.

[0006] Preferably, the housing includes an outer shell and a bottom cover, the bottom cover is arranged at the bottom of the outer shell, and a raised lens mounting cover is provided at a position corresponding to the transmitting unit and the receiving unit on a side of the outer shell away from the bottom cover.

[0007] Preferably, a lens holder is embedded in the interior of the lens mounting cover near the PCBA board, an optical lens is embedded in the position of the lens holder corresponding to the transmitting unit or the receiving unit, a triangular prism is embedded in the upper part of the lens mounting cover, and a window is opened on one side of the upper part of the lens mounting cover near the wire loading slot.

[0008] Preferably, a filter lens is embedded in the window.

[0009] Preferably, a digital tube is integrated on the surface of the PCBA board, and a digital tube lens is embedded in the position of the housing corresponding to the digital tube.

[0010] Preferably, the PCBA board is integrated with buttons, and the buttons are embedded in the housing.

[0011] Preferably, an indicator light is integrated on the PCBA board, and a light guide column is embedded in a position of the housing corresponding to the indicator light.

[0012] Preferably, the transmitting unit is a transmitting lamp, and the receiving unit is a receiving lamp.

[0013] The beneficial effects of the present disclosure are mainly as follows: the utility model places the wire at the bottom of the wire loading groove, and measures the diameter of the wire through two sets of mutually perpendicular measuring modules. The light emitted by the emitting units of the two sets of measuring modules are perpendicular to each other and intersect at the position where the wire is placed at the bottom of the wire loading groove, thereby realizing the measurement of the wire diameter, with the characteristics of high precision and small size.

[0014] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. Together, the description and the drawings serve to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a sensor according to an embodiment of the present disclosure;

[0017] Figure 2 An exploded diagram of the sensor structure according to an embodiment of the present disclosure;

[0018] Icon: 1-shell; 101-outer shell; 102-bottom cover; 1021-lens mounting cover; 2-wire loading slot; 3-PCBA board; 41-transmitting unit; 42-receiving unit; 51-lens bracket; 52-optical lens; 53-triangular prism; 54-filter lens; 6-digital tube; 61-digital tube lens; 7-button; 8-indicator light; 81-light guide column. DETAILED DESCRIPTION

[0019] The technical solutions of the present disclosure will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0020] Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0021] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this disclosure and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0023] Example

[0024] like Figure 1-2 As shown, this embodiment provides a small high-precision laser wire diameter measurement sensor, including a shell 1, the shell 1 is a "U"-shaped structure as a whole, and a U-shaped wire loading groove 2 is provided in the middle of the shell 1, and the wire can be loaded into the wire loading groove 2 to measure the wire diameter; the interior of the shell 1 is fixed with a PCBA board 3 by bolts, and two groups of measurement modules are integrated on the PCBA board 3, each group of measurement modules includes a transmitting unit 41 and a receiving unit 42, the transmitting unit 41 is a transmitting lamp, and the receiving unit 42 is a receiving lamp. The two transmitting units 41 and the two receiving units 42 are respectively arranged at the four corners of the PCBA board 3, so that the light emitted by the two transmitting units 41 is perpendicular to each other, and the area where the emitted light rays intersect is located on the vertical line of the wire loading slot 2, so that the intersection area of the light rays emitted by the two transmitting units 41 is on the wire to be measured, thereby realizing the measurement of the wire diameter. Assuming that the measurement directions of the two groups of measurement modules are the X and Y axis directions respectively, the vertical line direction of the wire loading slot 2 is the Z axis direction, and the parallel light emitted by the two groups of XY axis measurement modules are 90 degrees to each other, and the diameter of the Z-direction wire is measured.

[0025] Specifically, the housing 1 includes an outer shell 101 and a bottom cover 102. The bottom cover 102 is embedded in the bottom of the outer shell 101. A raised lens mounting cover 1021 is provided on the side of the outer shell 101 away from the bottom cover 102, at positions corresponding to the transmitting unit 41 and the receiving unit 42. Different lenses are provided within the lens mounting cover 1021 to guide the light emitted by the transmitting unit 41 through the vertical line of the wire insertion slot 2 and then enter the receiving unit 42.

[0026] Specifically, a lens holder 51 is embedded in the interior of the lens mounting cover 1021 near the PCBA board. An optical lens 52 is embedded in the lens holder 51 at a position corresponding to the transmitting unit 41 or the receiving unit 42. A triangular prism 53 is embedded in the upper portion of the lens mounting cover 1021. A window is formed on the upper portion of the lens mounting cover 1021 near the wire insertion slot 2. The optical lens 52 is mounted on the lens holder 51, and the lens holder 51 can prevent external light from interfering with the transmitting unit 41 or the receiving unit 42. After light emitted by the transmitting unit 41 passes through the optical lens 52, it is emitted parallel and upward. After being refracted by the triangular prism 53, the light is refracted 90 degrees and emitted through the window of the lens mounting cover 1021. After passing through the wire area, it is refracted by the triangular prism 53 in the lens mounting cover 1021 above the receiving unit 42, resulting in a 90-degree refracted light. After passing through the optical lens 52, the light enters the receiving unit 42. The two sets of measurement modules operate on the same principle.

[0027] Furthermore, a filter lens 54 is embedded in the window. The filter lens 54 filters light, thereby improving measurement accuracy and preventing dust from entering the interior of the housing 1.

[0028] In one embodiment, a digital tube 6 is integrated on the surface of the PCBA board 3, and a digital tube lens 61 is embedded in the housing 1 at a position corresponding to the digital tube 6. The digital tube 6 displays the measurement results, allowing intuitive observation of the measurement data, and the transparent digital tube lens 61 prevents external contamination from entering the interior of the housing 1.

[0029] In one embodiment, a button 7 is integrated on the PCBA board 3, and the button 7 is embedded in the housing 1. In this embodiment, there are two buttons 7, and the sensor parameters are adjusted by the two buttons 7.

[0030] In one embodiment, the PCBA board 3 is integrated with an indicator light 8, and the housing 1 is embedded with a light guide column 81 at a position corresponding to the indicator light 8. In this embodiment, there are two indicator lights 8, which display the working status of the sensor.

[0031] The working principle of the present invention is as follows: the present application measures the diameter of the wire by two groups of mutually perpendicular measuring modules, and through dual-axis simultaneous measurement, two groups of parallel light in the X and Y axis directions are 90 degrees to each other, and the diameter of the wire in the Z axis direction is measured; specifically, the wire to be measured is placed in the wire loading slot 2, and the light emitted by the two transmitting units 41 passes through the optical lens 52, and is refracted 90 degrees by the triangular prism 53 and emitted in parallel. The two groups of mutually perpendicular parallel light rays pass through the wire and are refracted 90 degrees by the triangular prism 53, and are received by the receiving unit 42 after passing through the optical lens 52, thereby completing the diameter measurement of the wire, and the measurement result is displayed through the digital tube 6.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A small high-precision laser wire diameter measurement sensor, characterized in that: The device comprises a shell, a U-shaped wire loading slot is provided in the middle of the shell, a PCBA board is provided inside the shell, two sets of measurement modules are integrated on the PCBA board, and the measurement modules include a transmitting unit and a receiving unit. The output directions of the two transmitting units are perpendicular to each other, and the intersection point of the light of the two transmitting units is located on the vertical line of the wire loading slot.

2. A small high-precision laser wire diameter measurement sensor according to claim 1, characterized in that: The housing comprises an outer shell and a bottom cover, wherein the bottom cover is arranged at the bottom of the outer shell, and a raised lens mounting cover is arranged at a position corresponding to the transmitting unit and the receiving unit on one side of the outer shell away from the bottom cover.

3. A small high-precision laser wire diameter measurement sensor according to claim 2, characterized in that: A lens holder is embedded in the interior of the lens mounting cover near the PCBA board, an optical lens is embedded in the position of the lens holder corresponding to the transmitting unit or the receiving unit, a triangular prism is embedded in the upper part of the lens mounting cover, and a window is opened on the upper part of the lens mounting cover near the side of the wire loading groove.

4. A small high-precision laser wire diameter measurement sensor according to claim 3, characterized in that: A filter lens is embedded in the window.

5. The small-sized high-precision laser wire diameter measuring sensor according to claim 1, characterized in that: A digital tube is integrated on the surface of the PCBA board, and a digital tube lens is embedded in the position of the housing corresponding to the digital tube.

6. The small high-precision laser wire diameter measurement sensor according to claim 1, characterized in that: The PCBA board is integrated with buttons, and the buttons are embedded in the housing.

7. The small high-precision laser wire diameter measurement sensor according to claim 1, characterized in that: An indicator light is integrated on the PCBA board, and a light guide column is embedded in a position of the housing corresponding to the indicator light.

8. The small high-precision laser wire diameter measurement sensor according to claim 1, characterized in that: The transmitting unit is a transmitting lamp, and the receiving unit is a receiving lamp.

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