Head size measuring device

Abstract

The utility model discloses a head size measuring device, and relates to the technical field of head article testing. The device comprises an operation table which is provided with a reference part and a control assembly; the rotating assembly is installed on the operation table. The adjusting assembly is fixedly assembled on the rotating assembly; the head form is detachably assembled on the adjusting assembly and located on the lower side of the reference piece. The laser assembly is movably assembled on the operation table and used for scanning head type measurement data. The reference part, the rotating assembly and the laser assembly are all electrically connected with the control assembly, after the reference part and the adjusting assembly adjust the head type reference positioning, the control assembly is started to control the laser assembly to reciprocate up and down to scan the head type, and meanwhile the rotating assembly is driven to drive the head type to rotate, so that the laser assembly comprehensively scans head type measurement data. By adopting the technical scheme, compared with a traditional three-coordinate measurement method, the head type data can be automatically and quickly measured, the measurement efficiency and the accuracy of the measured data are improved, and errors and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of headwear testing technology, specifically to a head shape and size measuring device. Background Technology

[0002] In the field of head protection product testing, accurately measuring the dimensional parameters of the test head shape is crucial. With the continuous development of the head protection product industry, the requirements for product quality and safety are becoming increasingly stringent, thus placing higher demands on the accuracy and efficiency of head shape dimensional measurement. However, traditional coordinate measuring machines (CMMs) rely on manual operation, moving the probe to various target points on the head shape surface and using accompanying reading devices and digital displays to collect the coordinate values ​​of the measured points in real time. Based on these discrete coordinate values, data processing and geometric calculations are then used to derive key parameters such as the head shape's geometry and the dimensions of various parts. However, CMMs themselves are high-precision instruments, resulting in high equipment costs and time-consuming manual measurement, making them insufficient to meet the industry's evolving needs. Therefore, improvements are urgently needed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a head shape measurement device that can quickly measure head shape data, improve measurement efficiency and accuracy, and reduce errors and costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a head shape size measuring device, comprising:

[0005] An operating table, on which a reference component and a control assembly are provided;

[0006] A rotating component is mounted on the operating table, with one end exposed on the operating table;

[0007] An adjustment component is fixedly mounted on the rotating component and is used to cooperate with the reference component;

[0008] A head shape, detachably mounted on the adjustment assembly and located below the reference member, the reference member cooperating with the adjustment assembly to adjust the reference positioning of the head shape; and

[0009] A laser assembly, movably mounted on the operating table, is used to scan the head shape measurement data;

[0010] The reference component, the rotating component, and the laser component are all electrically connected to the control component. After the reference component and the adjusting component adjust the head shape reference positioning, the control component is activated to control the laser component to move up and down reciprocally to scan the head shape, while simultaneously driving the rotating component to rotate the head shape so that the laser component can fully scan the head shape measurement data.

[0011] The present invention further includes, wherein the laser assembly comprises: a mounting box slidably mounted on the operating table and having one end open toward the head shape, and a dual laser component disposed at the opening of the mounting box for scanning the head shape.

[0012] The present invention further includes, wherein the mounting box comprises: a mounting plate slidably mounted on the operating table for assembling the dual laser components, and a mounting cover closed on the mounting plate.

[0013] The present invention further includes the following control components: a control unit disposed on one side of the operating table for controlling the laser component to scan the head shape; a control button disposed on the operating table for controlling the displacement movement of the rotating component and the laser component; and an emergency stop button disposed on the side of the operating table.

[0014] The present invention further provides that the control button includes: a first button portion for controlling the rotation of the rotating component, and a second button portion for controlling the reciprocating movement of the laser component.

[0015] The present invention further includes, wherein the reference component comprises: a fixed bracket extending from the operating table, and a cross laser component disposed on the fixed bracket for reference positioning of the head shape.

[0016] The present invention further includes, wherein the adjusting component comprises: a first plate fixedly mounted on the rotating component, a second plate for assembling the head shape, and an adjusting column disposed between the first plate and the second plate for positioning the head shape in conjunction with the cross laser component.

[0017] The present invention further includes, in addition to, a displacement transmission assembly slidably mounted on the operating table for sliding assembly of the mounting box; the displacement transmission assembly includes: a displacement frame slidably mounted on the operating table, a driving member disposed at one end of the displacement frame away from the operating table, a transmission screw disposed within the displacement frame and fixedly mounted at one end to the output shaft of the driving member, a transmission block slidably mounted on the transmission screw, and a connecting member fixedly mounted on the transmission block and with both ends exposed on the displacement frame for driving the mounting box to reciprocate.

[0018] The present invention further includes, in addition to, a support plate slidably mounted on the operating table for mounting the displacement frame, a support frame that is disposed through the operating table and extends through both ends of the operating table for connecting with the support plate, a slide rail disposed at the top of the operating table, and a slider disposed within the support frame for sliding in cooperation with the slide rail.

[0019] The present invention further provides that the operating table is also provided with avoidance holes for the sliding of the support plate passing through both ends of the support frame.

[0020] The beneficial effects of this utility model after adopting the above technical solution are as follows: This utility model includes a rotating component and a laser component. The rotating component has an adjustment component for detachable assembly of the head shape and also works in conjunction with the reference component to perform reference positioning of the head shape, ensuring that the head shape is in a uniform standard reference position during each measurement. This avoids measurement errors caused by positioning deviations. Once the head shape is properly positioned, the control component is activated to control the laser component to move up and down reciprocally to scan the head shape measurement data. Simultaneously, the control component drives the rotating component to rotate the head shape, allowing the laser component to fully scan the complete data information of the head shape measurement. This ensures that the laser beam covers the entire surface of the head shape, achieving comprehensive and seamless acquisition of the head shape's three-dimensional data. Therefore, the combination of the rotating component and the laser component, compared to traditional coordinate measuring machines (CMMs), enables fully automatic and rapid measurement of head shape data, improving measurement efficiency and accuracy, while reducing errors and lowering costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the head shape measurement device;

[0023] Figure 2 This is an exploded view of the head size measuring device.

[0024] Figure 3 This is an exploded view of part of the head size measuring device;

[0025] Figure 4 This is an exploded view of the laser assembly and the displacement transmission assembly.

[0026] Explanation of reference numerals in the attached drawings: 100, operating table; 110, clearance hole; 120, tabletop; 130, cabinet body; 140, table legs; 200, rotating assembly; 210, rotating motor; 220, rotating base; 300, adjusting assembly; 310, first plate; 320, second plate; 330, adjusting column; 400, head type; 500, laser assembly; 510, mounting box; 511, mounting plate; 512, mounting cover; 520, dual laser components. 600, reference component; 610, fixed bracket; 700, control assembly; 710, control unit; 720, control button; 721, first button section; 722, second button section; 730, emergency stop button; 800, displacement transmission assembly; 810, displacement frame; 820, driving component; 830, transmission screw; 840, transmission block; 850, connecting component; 860, support plate; 870, support frame; 880, slide rail; 890, slider. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0029] This embodiment relates to a head shape size measuring device, referring to... Figures 1-3The system includes: an operating table 100, a rotating assembly 200, an adjusting assembly 300, a head shape 400, and a laser assembly 500. The operating table 100 is equipped with a reference component 600 and a control component 700. The reference component 600 serves as a reference for positioning the head shape 400, providing a standardized measurement coordinate system and aligning with the perpendicular intersecting lines on the head shape 400. The control component 700 synchronously controls the laser assembly 500 and the rotating assembly 200 via a pre-programmed PLC. The rotating assembly 200 is mounted on the operating table 100, with one end exposed for mounting the adjusting assembly 300, and works in conjunction with the laser assembly 500 to achieve full-circumferential scanning. Specifically, the rotating assembly 200 includes a rotary motor 210, which is installed within the operating table 100. The output shaft of the rotary motor 210 is assembled with a rotating base 220, which provides mounting space for the adjusting assembly 300. The adjustment component 300 is fixedly mounted on the rotating component 200 and is used to cooperate with the reference component 600 to perform reference positioning of the head shape 400. It can fine-tune parameters such as pitch, yaw, and height of the head shape 400 to ensure that the head shape 400 is in a preset standard measurement posture, avoiding measurement data deviations caused by tilting. The head shape 400 is detachably mounted on the adjustment component 300 and is located below the reference component 600. The head shape 400 is positioned based on the reference component 600 and the adjustment component 300. The detachable assembly allows for quick replacement of different head shapes 400 to meet diverse measurement needs. The laser component 500 is movably mounted on the operating table 100 and is used to scan the head shape 400 to measure its data information without physical contact with the head shape 400. The reference component 600, rotating component 200, and laser component 500 are all electrically connected to the control component 700. After the reference component 600 and adjusting component 300 adjust the head shape 400 for reference positioning, the control component 700 is activated to control the laser component 500 to move up and down reciprocally to scan the head shape 400. Simultaneously, the rotating component 200 is driven to rotate the head shape 400, allowing the laser component 500 to fully scan the head shape 400's measurement data. This enables a full-range scan of complex curved surfaces such as the top, sides, and bottom of the head, acquiring complete data or contour curves to provide basic data for subsequent 3D modeling and dimensional analysis. The laser scanning speed is fast, and combined with automated control, the measurement of the entire head shape 400 can be completed in a short time, improving inspection efficiency. Therefore, fully automated and rapid measurement of the head shape 400 data is achieved, improving measurement efficiency and the accuracy of measurement data, while reducing errors and lowering costs.

[0030] Furthermore, referring to Figure 2The workbench 100 includes a work surface 120 for assembling multiple components and a cabinet 130 disposed under the work surface 120, the cabinet 130 having a cavity inside. Four legs 140 extend from the bottom of the cabinet 130 for fixed contact with the ground. Side panels and a bottom plate are also provided on the periphery and bottom of the cabinet 130 to form a whole.

[0031] In this embodiment, refer to Figures 3-4 The laser assembly 500 includes a mounting box 510 and dual laser elements 520. The mounting box 510 is slidably mounted on the operating table 100, with one end open towards the head shape 400, facilitating scanning of the head shape 400 and ensuring unobstructed laser beam emission onto the head shape 400. The dual laser elements 520 are positioned at the opening of the mounting box 510 for unobstructed scanning of the head shape 400 to measure its data. The dual laser elements 520 can cover a wider scanning area, allowing scanning of complex parts of the head shape 400, such as the ears and chin, from different directions, thus obtaining more complete head shape data. This not only improves scanning efficiency but also helps improve data accuracy, reducing measurement errors caused by obstructions or angle issues.

[0032] Furthermore, referring to Figure 4 The mounting box 510 includes: a mounting plate 511 that is slidably mounted on the operating table 100 for assembling the dual laser components 520, and a mounting cover 512 that closes on the mounting plate 511. The mounting plate 511 serves as the mounting carrier for the dual laser components 520, providing a precise assembly position and preventing the dual laser components 520 from shaking during movement. The mounting cover 512 forms a closed space to prevent dust, moisture, debris, etc., from entering the interior of the mounting box 510, thus preventing contamination or damage to the optical lenses or circuit components of the dual laser components 520.

[0033] In this embodiment, refer to Figure 2The control component 700 includes a control unit 710, control buttons 720, and an emergency stop button 730. The control unit 710 is located on one side of the operating table 100. It controls the laser component 500 to emit a beam and move up and down for scanning, while simultaneously receiving the rotation angle of the rotating component 200. This achieves synchronous control of the laser scanning and the rotation of the head shape 400. Furthermore, it receives measurement data from the laser component 500, combines it with position feedback from the rotating component 200, performs coordinate transformation and stitching on the scanned data, and generates a complete three-dimensional model or dimensional parameters of the head shape 400, providing accurate data support for helmet fit and head shape 400 size statistics. Specifically, the control unit 710 includes a display screen (not shown), a keyboard (not shown), and a mouse (not shown) for controlling the working status of the measuring device. The emergency stop button 730 is located on the side of the operating table 100. In case of an abnormal situation or when the operator needs to stop urgently, pressing the emergency stop button 730 immediately cuts off the power source of the device, interrupting the movement of all moving parts. The control button 720 is located on the operating table 100 and directly controls the forward and reverse rotation of the rotating component 200, adjusting the posture of the head 400 for easy calibration or rescanning of missed areas. It also controls the reciprocating movement of the laser component 500, starts or pauses longitudinal scanning, or manually adjusts the scanning start position. Furthermore, the control button 720 includes a first button 721 for controlling the forward and reverse rotation of the rotating component 200 and a second button 722 for controlling the reciprocating movement of the laser component 500. Before automatic scanning, the first button 721 allows manual rotation of the head 400 to calibrate its posture in conjunction with the reference component 600. Alternatively, during or after scanning, if data is missing in a certain area, the head 400 can be manually rotated to the missed angle for individual rescanning. The second button 722 allows manual start or pause of the up-and-down reciprocating movement of the laser component 500 or manual setting of the scanning start position, adapting to different head 400 heights or special measurement requirements.

[0034] In this embodiment, the reference component 600 includes a fixed bracket 610 and a crosshair laser component (not shown). The fixed bracket 610 extends onto the operating table 100, and the crosshair laser component is mounted on the fixed bracket and electrically connected to the control unit 710 for reference positioning of the head shape 400. Specifically, the top of the head shape 400 has vertically intersecting lines. After activating the crosshair laser component, the laser beam is aligned with the lines of the head shape 400, thus completing the positioning of the reference point and preventing deviation caused by the head shape 400 being tilted during measurement.

[0035] In this embodiment, refer to Figure 3The adjustment assembly 300 includes a first plate 310, a second plate 320, and an adjustment column 330 disposed between the first plate 310 and the second plate 320. The first plate 310 is fixedly mounted on the rotating assembly 200 and rotates with the rotating assembly 200. The second plate 320 is detachably mounted to the head shape 400. The adjustment column 330 is disposed between the first plate 310 and the second plate 320 and, through its cooperation with the crosshair laser element, positions the head shape 400 at its final position. Specifically, by adjusting the adjustment column 330, the second plate 320 on the adjustment column 330 is brought to a horizontal plane, ensuring that the head shape 400 is in a horizontal state. This avoids affecting measurement accuracy due to head shape 400 tilting. Working together with the crosshair laser element, it achieves accurate reference positioning of the head shape 400, improving the accuracy and reliability of the measurement results.

[0036] In this embodiment, refer to Figures 3-4 The head shape measurement device also includes a displacement transmission assembly 800 slidably mounted on the operating table 100 for the mounting box 510 to slide and reciprocate. The displacement transmission assembly 800 includes a displacement frame 810, a drive component 820, a transmission screw 830, a transmission block 840, and a connecting component 850. The displacement frame 810 is slidably mounted on the operating table 100 for the mounting box 510 to reciprocate. The drive component 820 is located at the end of the displacement frame 810 away from the operating table 100 and is electrically connected to the control unit 710, providing driving force for the reciprocating movement of the mounting box 510. The transmission screw 830 is located inside the displacement frame 810, and one end of it is fixedly mounted to the output shaft of the drive component 820. When the drive component 820 is started, it drives the transmission screw 830 to rotate, converting the rotational motion of the drive component 820 into linear motion. The transmission block 840 is slidably mounted on the transmission screw 830. The rotation of the transmission screw 830 drives the transmission block 840 to reciprocate linearly, which in turn drives the connector 850 and the mounting box 510 to move synchronously, thereby realizing the automatic scanning action of the laser assembly 500. The connector 850 is fixedly mounted on the transmission block 840, with both ends passing through and exposed on the displacement frame 810, and is used to drive the mounting and reciprocating movement of the head 400 to scan and measure data.

[0037] In this embodiment, refer to Figure 4The displacement transmission assembly 800 also includes a support plate 860, a support frame 870, a slide rail 880, and a slider 890. The support plate 860 is slidably mounted on the operating table 100. The support frame 870 is disposed through the operating table 100, with both ends passing through and exposed on the operating table 100, for connection with the support plate 860. Together with the support frame 870, they form a manually adjustable frame. The connection between the support frame 870 and the support plate 860 forms a through-type frame. Specifically, the user can manually push the frame to slide the displacement frame 810 relative to the operating table 100, thereby adjusting the position of the laser assembly 500 and achieving initial position adjustment to adapt to different head sizes or measurement ranges. The slide rail 880 is located at the top of the operating table 100, and the slider 890 is located inside the support frame 870. It is used to slide in cooperation with the slide rail 880, thereby driving the displacement frame 810 mounted on the support plate 860 to slide relative to the operating table 100, reducing the frictional resistance when the support plate 860 and the displacement frame 810 slide, and ensuring smooth and uninterrupted movement when the frame is manually pushed.

[0038] Furthermore, the operating table 100 is also provided with clearance holes 110, which are used to allow the two ends of the support frame 870 to pass through the operating table 100 and connect to the support plate 860 for reciprocating sliding.

[0039] The working principle of this utility model is roughly as follows: When the laser beam of the cross laser component is aligned with and coincides with the vertical intersecting lines on the top of the head 400, the head 400 is simultaneously adjusted by adjusting the adjusting column 330 to make the head 400 horizontal, thereby completing the reference positioning of the head 400. The head 400 is divided into upper and lower parts for measurement. Under the start command of the controller 710, the dual laser component 520 emits a beam to scan the upper part of the head 400, and the rotating component 200 drives the head 400 to rotate at a constant speed. After the rotating component 200 completes one rotation, the dual laser component 520 can fully scan the upper part of the head 400 and measure accurate data; the controller 710 controls the drive mounting box 510 downward. The device moves to the scanning starting point of the lower part of the head shape 400. The dual laser components 520 emit beams to scan the lower part of the head shape 400. The rotating component 200 also drives the head shape 400 to rotate at a constant speed. After the rotating component 200 completes one rotation, the dual laser components 520 complete the full scan of the lower part of the head shape 400 and measure accurate data. At this time, the data acquisition of the upper and lower parts of the head shape 400 is completed. The control computer 710 processes the measurement data of the upper and lower parts, performs coordinate transformation and stitching, and generates a complete three-dimensional model or dimensional parameters of the head shape 400. This realizes fully automatic and rapid measurement of the head shape 400 data, improves measurement efficiency and the accuracy of measurement data, and also improves the accuracy and reliability of the measurement.

[0040] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A head shape size measuring device characterized by, include: An operating table (100) is provided with a reference component (600) and a control component (700); A rotating assembly (200) is inserted through the operating table (100) and one end is exposed on the operating table (100); An adjustment component (300) is fixedly mounted on the rotating component (200) for engaging with the reference component (600); The head shape (400) is detachably mounted on the adjustment assembly (300) and located on the lower side of the reference member (600). The reference member (600) cooperates with the adjustment assembly (300) to adjust the reference positioning of the head shape (400). as well as A laser assembly (500) is movably mounted on the operating table (100) for scanning measurement data of the head shape (400); The reference component (600), the rotating component (200), and the laser component (500) are all electrically connected to the control component (700). After the reference component (600) and the adjusting component (300) adjust the reference positioning of the head shape (400), the control component (700) is activated to control the laser component (500) to move up and down to scan the head shape (400). At the same time, the rotating component (200) is driven to rotate the head shape (400) so that the laser component (500) can fully scan the measurement data of the head shape (400).

2. The head shape sizing device of claim 1, wherein, The laser assembly (500) includes: a mounting box (510) slidably mounted on the operating table (100) and having one end open towards the head (400), and a dual laser component (520) disposed at the opening of the mounting box (510) for scanning the head (400).

3. The head shape size measuring device according to claim 2, characterized in that, The mounting box (510) includes: a mounting plate (511) slidably mounted on the operating table (100) for assembling the dual laser components (520), and a mounting cover (512) closed on the mounting plate (511).

4. The head shape sizing device of claim 1, wherein, The control component (700) includes: a control unit (710) disposed on one side of the operating table (100) for controlling the laser component (500) to scan the head shape (400); a control button (720) disposed on the operating table (100) for controlling the displacement of the rotating component (200) and the laser component (500); and an emergency stop button (730) disposed on the side of the operating table (100).

5. The head shape sizing device of claim 4, wherein, The control button (720) includes a first button (721) for controlling the rotation of the rotating component (200) and a second button (722) for controlling the reciprocating movement of the laser component (500).

6. The head shape sizing device of claim 1, wherein, The reference component (600) includes: a fixed bracket (610) extending from the operating table (100), and a cross laser component disposed on the fixed bracket (610) for reference positioning of the head shape (400).

7. The head shape sizing device of claim 6, wherein, The adjustment assembly (300) includes: a first plate (310) fixedly mounted on the rotating assembly (200), a second plate (320) for mounting the head shape (400), and an adjustment column (330) disposed between the first plate (310) and the second plate (320) for positioning the head shape (400) in conjunction with the cross laser component.

8. The head shape sizing device of claim 2, wherein, The head shape (400) measuring device further includes: a displacement transmission assembly (800) slidably mounted on the operating table (100) for sliding assembly of the mounting box (510); the displacement transmission assembly (800) includes: a displacement frame (810) slidably mounted on the operating table (100), a drive member (820) disposed at one end of the displacement frame (810) away from the operating table (100), a transmission screw (830) disposed inside the displacement frame (810) and fixedly mounted at one end to the output shaft of the drive member (820), a transmission block (840) slidably mounted on the transmission screw (830), and a connecting member (850) fixedly mounted on the transmission block (840) and with both ends exposed on the displacement frame (810) for driving the mounting box (510) to reciprocate.

9. The head shape sizing device of claim 8, wherein, The displacement transmission assembly (800) further includes: a support plate (860) slidably mounted on the operating table (100) for mounting the displacement frame (810); a support frame (870) that is disposed through the operating table (100) and has both ends passing through the operating table (100) for connecting with the support plate (860); a slide rail (880) disposed at the top of the operating table (100); and a slider (890) disposed in the support frame (870) for sliding in cooperation with the slide rail (880).

10. The head shape sizing device of claim 9, wherein, The operating table (100) is also provided with clearance holes (110) for avoiding the sliding of the support plate (860) that passes through both ends of the support frame (870).

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