Shape taking device

Abstract

The invention discloses a shape taking device which comprises a frame, a row of shape taking strip sets, a code reader and a control unit, the frame is in a frame shape, and a code scanning window extending in the first direction is formed in the top face of the frame. The shape-taking bar group comprises a plurality of shape-taking bars, the plurality of shape-taking bars extend along a second direction and are arranged along the first direction, and the top surfaces of the plurality of shape-taking bars are provided with a plurality of bar codes arranged along the second direction; the plurality of shape-taking strips are installed in the frame, the plurality of shape-taking strips can move along the second direction, and the plurality of bar codes of the shape-taking strips can be exposed in the code scanning window one by one along with the movement of the shape-taking strips; the first direction is perpendicular to the second direction. And the code reader is used for scanning the bar code in the code scanning window. And the control unit is connected with the code reader and is used for receiving the bar code scanned by the code reader and judging the displacement of the shape taking bar according to the bar code.

Description

Technical Field

[0001] The invention relates to the technical field of construction measurement, and in particular to a shape picker. Background Art

[0002] In daily life and work, we encounter a lot of occasions where irregular surfaces need to be measured, such as house decoration, ergonomic design, animal tumor model measurement, and reverse modeling. Current surface measurement equipment is mainly divided into two types: non-contact and contact. Non-contact surface measurement mainly uses optical equipment to take a large number of photos of the object to be measured to obtain surface photos of the object and use software to stitch the photos into a 3D model. This method requires expensive hardware and software equipment and has strict requirements on the color and light reflection ability of the surface of the object to be measured. Therefore, the economy, convenience and efficiency of this method are poor.

[0003] Contact surface measurement is more widely used, mainly including servo system, roller measuring ruler, tape measure and shape extractor. Among them, the servo system collects surface parameters by moving the measuring head along the surface of the surface. The measurement is the most accurate, but the equipment is expensive and large in size, and has strict requirements on the volume and hardness of the object being measured. The roller measuring ruler is similar to the tape measure in principle. It measures the surface by moving or fitting along the surface of the surface, but can only obtain the length of the surface, and cannot obtain other surface parameters. The shape extractor is a tool that uses a large number of built-in measuring rulers of the same shape to fit the surface of the object being measured, and then obtains the contour of the object being measured by the displacement of the measuring ruler. However, as the name suggests, the shape extractor can only obtain the shape of the surface, and cannot obtain any specific parameters of the surface.

[0004] At present, there is still no surface measuring ruler on the market that can quickly obtain the contour parameters of the measured object. Summary of the invention

[0005] The purpose of the present invention is to provide a shape extractor to solve the problems of the prior art.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a shape extractor, which includes:

[0007] A frame, wherein a top surface of the frame is provided with a code scanning window extending along a first direction;

[0008] A row of shape-taking bars, the shape-taking bars group comprising a plurality of shape-taking bars, the plurality of shape-taking bars extending along a second direction and arranged along the first direction, the top surfaces of the plurality of shape-taking bars being provided with a plurality of bar codes arranged along the second direction; the plurality of shape-taking bars being installed in the frame, and the plurality of shape-taking bars being movable along the second direction, the plurality of bar codes of the shape-taking bars being exposed one by one in the code scanning window as the shape-taking bars move; the first direction and the second direction being perpendicular;

[0009] A barcode reader, the barcode reader is used to scan the barcode in the barcode scanning window; and

[0010] A control unit is connected to the barcode reader and is used to receive the barcode scanned by the barcode reader and determine the displacement of the shape-taking bar according to the barcode.

[0011] In one embodiment, the barcodes of the plurality of shaped bars are different.

[0012] In one embodiment, the code reader is connected to the frame.

[0013] In one embodiment, the code reader is detachably connected to the frame.

[0014] In one embodiment, the code reader is connected to the frame so as to be movably connected along the first direction.

[0015] In one embodiment, the shape-taking strip is provided with a limiting member, and the limiting member is used to limit the shape-taking strip from being separated from the frame.

[0016] In one embodiment, the scanning head of the code reader covers the entire code scanning window.

[0017] In one embodiment, the shape finder comprises:

[0018] A plurality of frames, wherein the plurality of frames are arranged in a vertical direction and two adjacent frames are detachably connected, and each of the frames is provided with the code scanning window; and

[0019] A plurality of rows of shape-taking bar groups are arranged at intervals along the vertical direction, and each row of the shape-taking bar groups is located in each of the frames, and each of the shape-taking bar groups includes a plurality of the shape-taking bars.

[0020] In one embodiment, the shape picker includes a plurality of the code readers, and the plurality of the code readers are respectively connected to a plurality of the frames;

[0021] The control unit is connected to the plurality of code readers, receives the bar codes scanned by the plurality of code readers, and determines the displacement of the shape-taking bar according to the bar codes.

[0022] In one embodiment, the shape finder comprises:

[0023] A plurality of frames, wherein the plurality of frames are arranged in a vertical direction and at least a portion of two adjacent frames are staggered, and at least a portion of each frame is provided with the code scanning window; and

[0024] A plurality of rows of shape-taking bar groups are arranged at intervals along the vertical direction, and each row of the shape-taking bar groups is located in each of the frames, and each of the shape-taking bar groups includes a plurality of the shape-taking bars.

[0025] The present invention sets a barcode on the shape-taking bar. When the top of the shape-taking bar is attached to the object to be measured, the size of the outline of the object to be measured can be obtained by scanning the barcode on the shape-taking bar in the code scanning window. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of a shape extractor according to an embodiment of the present invention.

[0027] Figure 2 yes Figure 1 An assembly diagram of a frame and a row of shape-taking bar groups of the shape-taking device in the illustrated embodiment.

[0028] Figure 3 It is a schematic diagram of a scanning window of an embodiment of the present invention being aligned with a partial barcode of a shape-taking bar.

[0029] Figure 4 yes Figure 3 The embodiment shown is a schematic diagram of a barcode scanning window aligned with another portion of a barcode on a shape-taking bar.

[0030] Figure 5 It is a schematic diagram of a barcode scanning window aligned with a partial barcode of a row of shape bars according to an embodiment of the present invention.

[0031] Figure 6 yes Figure 5 The illustrated embodiment is a schematic diagram of a barcode scanning window aligned with another portion of a barcode in a row of image-taking bars.

[0032] Reference numerals: 10, shape taker; 1, frame; 11, code scanning window; 2, shape taker bar; 21, bar code; 3, code reader; X, first direction; Y, second direction; DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed for protection in the claims of the present application can be implemented.

[0034] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0035] The following will be described in detail with reference to the accompanying drawings to provide a clearer understanding of the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0036] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0037] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0038] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0039] The present invention relates to a shape extractor, which can not only obtain the shape of a measured object, but also quickly obtain contour parameters of the measured object. The shape extractor of an embodiment of the present invention is described in detail below based on the accompanying drawings.

[0040] like Figure 1-3 As shown, the shape-taking device 10 includes a frame 1, a row of shape-taking bars and a code reader 3. The frame 1 is annular and rectangular, the length direction of the frame 1 is the first direction X, and the top surface of the frame 1 also has a code scanning window 11, which is located on the top surface of the frame 1 and is formed by a depression in the top surface of the frame 1. The code scanning window 11 extends along the first direction X and is basically close to both ends of the frame 1 along the first direction X.

[0041] A row of shape-taking bar groups is located in the frame 1, that is, the frame 1 surrounds the outside of the shape-taking bar group. The row of shape-taking bar groups includes a plurality of shape-taking bars 2 closely arranged along a first direction X, and the plurality of shape-taking bars 2 are respectively in the shape of bars extending along a second direction Y and can move along the second direction Y in the frame 1, and the lengths of the plurality of shape-taking bars 2 are preferably the same. The first direction X and the second direction Y are perpendicular.

[0042] In addition, the top surfaces of the plurality of shape-taking bars 2 are respectively provided with a plurality of barcodes 21 arranged along the second direction Y. The plurality of barcodes 21 of the shape-taking bars 2 can be exposed one by one in the code scanning window 11 as the shape-taking bars 2 move.

[0043] When the shape of the object to be measured needs to be measured, one end of the shape-taking bar group along the second direction Y is pressed against the outside of the object to be measured, and the shape-taking device is gradually pushed toward the object to be measured. According to the shape of the object to be measured, part of the shape-taking bar 2 will move in the opposite direction in the frame 1 due to the obstruction of the object to be measured, and the concave shape formed after the movement of the part of the shape-taking bar is the shape of the object to be measured. After the part of the shape-taking bar 2 moves a certain distance, the barcode 21 on it will be exposed in the scanning window 11 of the frame 1. The barcode 21 in the scanning window 11 is scanned by the barcode reader 3 to obtain the size of the object to be measured.

[0044] The present invention adds an electronic barcode 21 to the shape-taking bar 2. When the measuring ruler is displaced, the arrangement of the barcode 21 exposed in the code scanning window 11 will also change. The barcode 21 in the code scanning window 11 is read in real time by the barcode reader 3 to determine the displacement size of the measured object, thereby being able to output more accurate surface parameters for easy recording for subsequent use.

[0045] The principle of using the barcode 21 to obtain the displacement of the object under test can be referred to Figure 4 ,like Figure 4 , Figure 5 and Figure 6 As shown, the code scanning window 11 is taken as a fixed reference system, and the arrangement direction of the shaping bars 21 is taken as the first direction X, which can also be regarded as the X-axis. The movement direction of the shaping bars 21 is taken as the second direction Y, which can also be regarded as the Y-axis. At this time, the position of each shaping bar 2 on the X-axis is known, and all shaping bars 2 can only move along the Y-axis. Therefore, when the top of the shaping bar 2 is in contact with the object to be measured, it is only necessary to know the relative position of each shaping bar 2 and the code scanning window 11 to obtain the surface coordinates of the contour of the object to be measured. In other words, the displacement of the shaping bar 2 along the Y-axis can be determined based on the barcode code of the shaping bar 2, and the contour size of the object to be measured can be determined based on the displacement changes of the Y-axis of multiple shaping bars.

[0046] It should be understood that the barcode 21 can also be replaced with a QR code or other scannable code, and the specific implementation method of the barcode 21 is not limited, as long as the code can be scanned and the displacement change of the shape bar 21 can be obtained.

[0047] When the shape-taking bar 2 is displaced, the barcode 21 in the code scanning window 11 will also change accordingly, and the barcode 21 data read by the code reader 3 will also change. The barcode on the surface of the code reader 3 is recorded in the control unit. It is only necessary to compare the read barcode with the barcode 21 on the surface of the shape-taking bar 2 as a whole to obtain the relative position of the shape-taking bar 2 and the code scanning window 11. The barcode reader 3 reads the barcode 21 data of each shape-taking bar 2 in the current code scanning window 11 in real time, and then compares and calculates the displacement of each shape-taking bar 2, thereby obtaining the surface data of the contour of the object being measured.

[0048] The control unit is connected to the code reader 3, and the barcode 21 on each shaping bar 2 will be entered into the control unit in advance. After the control unit receives the barcode 21 scanned by the code reader 3, it can determine the displacement of each shaping bar 2 according to the barcode 21, and determine the surface contour size of the object being measured according to the displacement of multiple adjacent shaping bars 2.

[0049] As a preferred solution, the barcodes 21 of the multiple shape-taking bars 2 are different to ensure accurate scanning. When there are multiple identical barcodes 21, if the displacements of two adjacent barcodes 21 are also the same, certain errors may be caused, so the barcodes 21 of the multiple shape-taking bars 2 are preferably different.

[0050] The code reader 3 can be set separately or connected to the frame 1, and the code reader 3 can be set according to the needs. When set separately, according to the size of the object to be measured, only the barcodes 21 of the multiple shape-taking bars 2 pushed by the object to be measured can be scanned, and the barcodes 21 of the other shape-taking bars 2 do not need to be scanned.

[0051] As a preferred solution, the code reader 3 is detachably connected to the frame 1, for example, the code reader 3 is fixed to the frame 1 by magnetism or screws, and the scanning head of the code reader 3 is aligned with the entire scanning window 11, that is, the scanning head needs to cover the entire scanning window 11 and cannot be moved. If any shaping bar 2 is shifted, the scanning head can scan the barcode 21 located in the scanning window after the shaping bar 2 is shifted.

[0052] As another optional solution, a guide rail extending along the first direction X may be provided on the top surface of the frame 1, for example, on both sides of the scanning window along the second direction Y, and two sliders are provided on the barcode reader 3, and the two sliders can move along the guide rail. When it is necessary to read the barcode 21 on a part of the shape-taking bar 2, the barcode reader 3 can be moved to the part of the shape-taking bar 2 as needed.

[0053] Each shape-taking bar 2 is provided with a limit piece at both ends along the second direction Y. The limit piece protrudes from the upper and lower ends of the shape-taking bar 2 to prevent the shape-taking bar 2 from separating from the frame 1 when moving along the second direction Y.

[0054] In other embodiments, the limiting member may also be disposed on the top surface or the bottom surface of the shaping strip 2 , and is not limited to the two ends, as long as it can prevent the shaping strip 2 from being separated from the frame 1 .

[0055] As a preferred solution, the shape picker 10 also includes a fastener, which is connected to the frame 1 and can be operated to compress the multiple shape picker strips 2 to ensure that the shape picker strips 2 can stably maintain their shapes after measurement for easy observation.

[0056] In one embodiment, a screw hole is provided on one side of the frame 1 along the first direction X. The fastener is a locking bolt, which can be screwed into the threaded hole and the inner end of which abuts against one of the external shaping bars 2. By rotating the locking bolt, multiple shaping bars 2 can be brought close to each other and fixed along the first direction X.

[0057] Preferably, the shape-taking device 10 includes a plurality of frames 1, a plurality of rows of shape-taking bar groups and a plurality of code readers 3. The plurality of frames 1 are integrally formed and arranged in the vertical direction, and each frame 1 is provided with the above-mentioned code scanning window 11. The plurality of rows of shape-taking bar groups are arranged at intervals in the vertical direction, and each row of shape-taking bar groups is located in the ring of each frame 1. Each of the shape-taking bar groups includes a plurality of shape-taking bars 2 arranged in the first direction X. Each shape-taking bar 2 is provided with a different barcode 21.

[0058] The arrangement of multiple frames 1 and multiple rows of shaping bars 2 can be suitable for measuring three-dimensional objects, such as objects with irregular shapes along the vertical direction.

[0059] Multiple code readers 3 are respectively connected to multiple frames 1, and the scanning heads of multiple code readers 3 are aligned with the scanning windows 11 of multiple frames 1, for scanning the barcodes 21 of each row of the shaping bar group. Multiple code readers 3 are respectively connected to the control unit. When it is necessary to measure the shape and size of a three-dimensional object to be measured, multiple code readers 3 read the barcodes 21 in the multiple rows of shaping bar groups respectively, and the control unit receives the information of multiple barcodes from multiple code readers 3, and judges the deformation of each row of shaping bars 2 according to the information of the barcodes 21 of each row of shaping bars 2, and judges the shape and size of the three-dimensional object to be measured according to the deformation of each row of shaping bars 2.

[0060] Of course, multiple frames 1 can also be arranged in a detachable connection mode, for example, multiple frames 1 are connected in the vertical direction by means of snaps. After shaping, a barcode reader 3 is used to first read the shapes on the multiple shaping bars 2 in the top frame 1, and then the top frame 1 is disassembled, and the barcode 21 on the shaping bar 2 in the second frame 1 is read, and the process is repeated in sequence. The barcode 21 in each row of shaping bars 2 can also be read to obtain the three-dimensional shape and size of the object being measured.

[0061] In another preferred embodiment, multiple frames 1 are arranged in a stepped vertical direction, for example, multiple frames 1 gradually deviate from the front end or the rear end from the top to the bottom, that is, two adjacent frames 1 are staggered in the vertical direction, and the top of each frame 1 is provided with the above-mentioned code scanning window 11. Since multiple frames 1 are arranged in a stepped manner, the code scanning window 11 of the frame 1 at the bottom of two adjacent frames 1 will not be covered by the frame 1 at the top section, and one code reader can also complete the code scanning of multiple rows of shape-taking bar groups in multiple frames 1. Of course, multiple code readers can also be installed on the top surfaces of multiple frames 1.

[0062] It should be understood that, in two adjacent frames 1, the frame 1 at the top and a part of the frame 1 at the bottom are staggered, and a code scanning window 11 is set in the staggered part of the frame at the bottom, and the code scanning window will not be covered by the frame 1 at the top.

[0063] In another embodiment, the multiple frames 1 may also be arranged so that two adjacent frames 1 are staggered. For example, two adjacent frames 1 are combined into a frame group, and the multiple frames 1 include multiple frame groups stacked in the vertical direction.

[0064] The two frames 1 in each frame group are staggered, and multiple frame groups are arranged in the vertical direction. The staggered parts of the two frames 1 in each frame group are provided with a code scanning window 11. The two frames at the bottom of the two adjacent frame groups are spaced and aligned in the vertical direction, and the spaced parts of the two frames 1 at the bottom can be installed with a code reader. In the two adjacent frame groups, the frames at the top section are spaced and aligned in the vertical direction, and the spaced positions can also be based on the code reader. This arrangement is similar to the above-mentioned stepped arrangement, both of which are to avoid the setting of the code scanning window. Of course, in other embodiments, it can also be set in other ways.

[0065] Preferred embodiments of the present invention have been described above in detail, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0066] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0067] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A shape extractor, characterized in that: The shape extractor comprises: A frame, wherein a top surface of the frame is provided with a code scanning window extending along a first direction; A row of shape-taking bars, the shape-taking bars group comprising a plurality of shape-taking bars, the plurality of shape-taking bars extending along a second direction and arranged along the first direction, the top surfaces of the plurality of shape-taking bars being provided with a plurality of bar codes arranged along the second direction; the plurality of shape-taking bars being installed in the frame, and the plurality of shape-taking bars being movable along the second direction, the plurality of bar codes of the shape-taking bars being exposed one by one in the code scanning window as the shape-taking bars move; the first direction and the second direction being perpendicular; A barcode reader, the barcode reader is used to scan the barcode in the barcode scanning window; and A control unit is connected to the barcode reader and is used to receive the barcode scanned by the barcode reader and determine the displacement of the shape-taking bar according to the barcode.

2. The shape extractor according to claim 1, characterized in that: The barcodes of the plurality of shape-taking bars are different.

3. The shape extractor according to claim 1, characterized in that: The code reader is connected to the frame.

4. The shape extractor according to claim 1, characterized in that: The code reader is detachably connected to the frame.

5. The shape extractor according to claim 1, characterized in that: The code reader is connected to the frame so as to be movable along the first direction.

6. The shape extractor according to claim 1, characterized in that: The shape-taking strip is provided with a limiting piece, and the limiting piece is used to limit the shape-taking strip from being separated from the frame.

7. The shape extractor according to claim 3, characterized in that: The scanning head of the code reader covers the entire code scanning window.

8. The shape extractor according to claim 1, characterized in that: The shape extractor comprises: A plurality of frames, wherein the plurality of frames are arranged in a vertical direction and two adjacent frames are detachably connected, and each of the frames is provided with the code scanning window; and A plurality of rows of shape-taking bar groups are arranged at intervals along the vertical direction, and each row of the shape-taking bar groups is located in each of the frames, and each of the shape-taking bar groups includes a plurality of the shape-taking bars.

9. The shape extractor according to claim 8, characterized in that: The shape-picker includes a plurality of the code readers, and the plurality of the code readers are respectively connected to a plurality of the frames; The control unit is connected to the plurality of code readers, receives the bar codes scanned by the plurality of code readers, and determines the displacement of the shape-taking bar according to the bar codes.

10. The shape extractor according to claim 1, characterized in that: The shape extractor comprises: A plurality of frames, wherein the plurality of frames are arranged in a vertical direction and at least a portion of two adjacent frames are staggered, and at least a portion of each frame is provided with the code scanning window; and A plurality of rows of shape-taking bar groups are arranged at intervals along the vertical direction, and each row of the shape-taking bar groups is located in each of the frames, and each of the shape-taking bar groups includes a plurality of the shape-taking bars.

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