Three-dimensional scanning jig

Abstract

The utility model provides a three-dimensional scanning jig, and the jig comprises a disc which is located at the lowest part of the jig and is used for bearing all parts; the clamping device is connected to the circle center position of the upper surface of the disc; the lower slideways are connected to the upper surface of the disc, and the four lower slideways are evenly distributed on the periphery of the clamping device in a cross shape; the lower end of the outer strut is connected to one end of the lower slideway close to the disc outer ring; the upper slideway is connected to the upper end of the outer support column, is cross-shaped on the whole and is parallel to the plane where the four lower slideways are located; the upper end and the lower end of the inner supporting column are slidably connected to the upper sliding way and the lower sliding way respectively. According to the utility model, the problems of poor precision and even incapability of completing overall scanning due to the fact that the existing long-strip-shaped equipment cannot stick mark points on the surface of an object and must vertically clamp the object to be scanned and only the vise at the bottom is arranged at the position where the mark points can be stuck and no mark points are arranged near the top to assist scanning are solved; the method has the advantages of being high in scanning precision and short in scanning time.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -dimensional scanning technical field especially relates to a three -dimensional scanning fixture. BACKGROUND

[0002] Three -dimensional scanning fixture is a kind of using three -dimensional scanning technology, the auxiliary tool for the accurate measurement and modeling of object.Three -dimensional scanning process is responsible for bearing and fixed object to be scanned, and provides carrier for scanning mark point.It integrates light, machine, electricity and computer technology, obtains the three-dimensional coordinate and geometric information of object surface by non-contact measurement mode.Three -dimensional scanning fixture works based on multiple technologies, such as structured light scanning, laser scanning, three coordinate measurement, these technologies use the reflection, refraction and other physical properties of light, combined with computer vision and image processing technology, realize the accurate acquisition of object surface three-dimensional information.Three -dimensional scanning fixture has wide application in manufacturing industry, industrial design, cultural relic protection and other fields, can significantly improve the measurement efficiency and precision, provides strong support for the design and manufacture of product.

[0003] Three -dimensional scanning mainly has mark point scanning and mark point scanning two scanning modes, mark point scanning does not need to paste mark point on object to be scanned and fixture, utilizes the feature of object to be scanned to splice, has the shortcoming of poor precision;Mark point scanning needs to paste mark point on object to be scanned or fixture, the final precision is high, is suitable for the scene with higher precision requirement.Most of three -dimensional scanning fixtures on the market are fixtures in the form of tiger clamps, which can meet the mark point scanning of most shape objects to be scanned;But when encountering long strip shape, the object to be scanned cannot be pasted with mark points on the surface and must be vertically clamped, since the place available for pasting mark points is only the bottom of the tiger clamp, there is no mark point near the top to assist scanning, which will eventually result in poor precision or even the consequence of being unable to complete the overall scanning. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a three -dimensional scanning fixture, which overcomes the above technical problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A three -dimensional scanning fixture, comprising:

[0007] Disc, located at the bottom of fixture, for bearing each component;

[0008] Clamping device, connected to the center of the upper surface of disc, for clamping object to be scanned;

[0009] Lower slide, connected to the upper surface of disc, four lower slides are evenly distributed around clamping device;

[0010] The outer support is connected to the lower slide at one end close to the outer ring of the disc;

[0011] The upper slide is connected to the upper end of the outer support and is in the shape of a cross, parallel to the plane of the four lower slides;

[0012] The inner support is slidably connected to the upper slide and the lower slide at the upper end and the lower end, respectively.

[0013] Further, the clamping device comprises a vice support and a vice, the vice support is connected to the disc, and the vice is connected above the vice support for clamping the object to be scanned.

[0014] Further, the inner support comprises an upper sliding block, a lower sliding block and a marker support, the upper sliding block is slidably connected to the upper slide, and the lower sliding block is slidably connected to the lower slide; the marker support is in the shape of a column, and the upper end is connected to the upper sliding block and the lower end is connected to the lower sliding block.

[0015] Further, the vice support and the vice are detachably connected.

[0016] Further, the upper sliding block is provided with a fastening device, which can limit the relative displacement of the upper sliding block at a certain position of the upper slide.

[0017] Further, the marker support is in the shape of a hexagonal column.

[0018] Further, the lower slide is fixedly connected to the disc.

[0019] Further, the outer support is fixedly connected to the lower slide.

[0020] Further, the upper slide is fixedly connected to the outer support.

[0021] Further, the fixing mode is screw connection.

[0022] The present application solves the problem that the existing equipment cannot paste marker points on the surface of an object and must vertically clamp the object to be scanned, at this time, only the vice at the bottom can be used for pasting marker points, and there is no marker point near the top to assist scanning, which finally causes poor precision and even cannot complete the overall scanning, and has the advantages of high scanning precision and short scanning time. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0024] Fig. 1A structural schematic diagram of a preferred embodiment of a three-dimensional scanning jig according to the present application.

[0025] Fig. 2 A structural schematic diagram of an inner support according to a preferred embodiment.

[0026] Fig. 3 A use state diagram of a three-dimensional scanning jig according to the present application.

[0027] Wherein, the above-mentioned drawings include the following reference signs:

[0028] 1, disc; 2, clamping device; 3, lower slide; 4, outer support; 5, upper slide; 6, inner support; 7, object to be scanned; 8, automatic turntable; 11, fixing hole; 21, vice support; 22, vice; 61, upper sliding block; 62, lower sliding block; 63, mark point support. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0031] The following reference will be made to Figs. 1 to 3 , the present application is further described:

[0032] A three-dimensional scanning jig, comprising:

[0033] Disc 1, located at the lowermost part of the jig, for bearing various components;

[0034] Clamping device 2, connected to the center of the upper surface of disc 1, for clamping the object to be scanned 7;

[0035] Lower slide 3, connected to the upper surface of disc 1, four lower slides 3 are evenly distributed around the clamping device 2 in the shape of a cross;

[0036] outer pillar 4, the lower end is connected to the lower slide 3 near the outer circle of the disc 1;

[0037] upper slide 5, connected to the upper end of the outer pillar 4, the whole is cross-shaped, parallel to the plane where the four lower slides 3 are located;

[0038] inner pillar 6, the upper end and the lower end are respectively slidably connected to the upper slide 5 and the lower slide 3.

[0039] In a preferred embodiment, the whole automatic three-dimensional scanning jig is made of 7 series aluminum.

[0040] The clamping device 2 includes a vice support 21 and a vice 22, the vice support 21 is connected to the disc 1, the vice 22 is connected above the vice support 22, used for clamping the to-be-scanned object 7, the vice support 21 and the vice 22 are detachably connected.

[0041] In this embodiment, the lower slide 3, the outer pillar 4, the vice support 21 and the vice 22 are fixed on the disc 1 by screws.

[0042] The inner pillar 6 includes an upper sliding block 61, a lower sliding block 62 and a marker point support 63, the upper sliding block 61 is slidably connected to the upper slide 5, the lower sliding block 62 is slidably connected to the lower slide 3; the marker point support 63 is columnar, the upper end is connected to the upper sliding block 62, and the lower end is connected to the lower sliding block 62.

[0043] The upper sliding block 62 is provided with a fastening device, which can limit the upper sliding block 62 at a certain position of the upper slide 5 without relative displacement.

[0044] The marker point support 63 is hexagonal in whole.

[0045] The fixing mode between the lower slide 3 and the disc 1 is fixed connection.

[0046] The fixing mode between the outer pillar 4 and the lower slide 3 is fixed connection.

[0047] The fixing mode between the upper slide 5 and the outer pillar 4 is fixed connection.

[0048] The upper slide 5 is fixed on the four outer pillars 4 by screws.

[0049] Each inner pillar 6 can slide along the corresponding upper slide 5 and lower slide 3 without tightening the upper sliding block 61, so as to quickly adjust the distance between the inner pillar 6 and the to-be-scanned object 7, compatible with different sizes of to-be-scanned objects 7, and adapt to different scanning requirements.

[0050] Before use, each surface of the inner support 6 and the outer support 4 needs to be pasted with a mark point of a proper size; when in use, the jig is used to fix the to-be-scanned object 7, the nuts at the top of the four upper sliding blocks 61 are loosened, the distance between the mark point support 63 and the to-be-scanned object 7 is adjusted, then the fixing nuts at the top of the upper sliding blocks 61 are tightened, and the fixing is completed, at this time, the formed cage structure can increase the structural strength of the whole jig, and through the setting of the mark point support 63, the overall scanning precision is improved, and the scanning time required is reduced.

[0051] The three-dimensional scanning jig can be connected with the automatic turntable 8 through the fixing hole 11 arranged on the disc 1 to perform three-dimensional automatic scanning, or can be manually rotated to perform manual scanning operation.

[0052] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0053] In addition, it should be noted that the use of "first", "second" and the like to limit the parts is only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore cannot be understood as a limitation on the protection scope of the present application.

[0054] The above is only the preferred embodiment of the present application and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A three-dimensional scanning fixture, characterized in that: include: A disc (1), located at the bottom of the fixture, is used to carry various components; A clamping device (2) connected to the center of the upper surface of the disc (1) and used for clamping the object to be scanned (7); A lower slide (3) is connected to the upper surface of the disc (1), and four lower slides (3) are evenly distributed around the clamping device (2) in a cross shape; An outer support (4), the lower end of which is connected to one end of the lower slide (3) close to the outer ring of the disc (1); An upper slideway (5) is connected to the upper end of the outer support (4), is cross-shaped as a whole, and is parallel to the plane where the four lower slideways (3) are located; The inner support (6) has an upper end and a lower end which are slidably connected to the upper slideway (5) and the lower slideway (3) respectively.

2. A three-dimensional scanning jig according to claim 1, characterized in that: The clamping device (2) comprises a vise bracket (21) and a vise (22), wherein the vise bracket (21) is connected to the disc (1), and the vise (22) is connected above the vise bracket (21) and is used for clamping the object to be scanned (7).

3. The three-dimensional scanning jig according to claim 1, characterized in that: The inner support (6) comprises an upper slider (61), a lower slider (62) and a marking point bracket (63); the upper slider (61) is slidably connected to the upper slideway (5), and the lower slider (62) is slidably connected to the lower slideway (3); the marking point bracket (63) is columnar, with an upper end connected to the upper slider (61) and a lower end connected to the lower slider (62).

4. The three-dimensional scanning jig according to claim 2, characterized in that: The vise bracket (21) and the vise (22) are detachably connected.

5. The three-dimensional scanning jig according to claim 3, characterized in that: The upper slider (61) is provided with a fastening device capable of restricting the upper slider (61) to a certain position of the upper slideway (5) without causing relative displacement.

6. The three-dimensional scanning jig according to claim 3, characterized in that: The marking point bracket (63) is in the shape of a hexagonal prism as a whole.

7. The three-dimensional scanning jig according to claim 1, characterized in that: The fixing mode between the lower slide (3) and the disc (1) is a fixed connection.

8. The three-dimensional scanning jig according to claim 1, characterized in that: The outer support (4) and the lower slide (3) are fixedly connected.

9. The three-dimensional scanning jig according to claim 1, characterized in that: The upper slideway (5) and the outer support (4) are fixedly connected.

10. A three-dimensional scanning jig according to any one of claims 7 to 9, characterized in that: The fixing method is bolt connection.

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