An omnidirectional measuring device

Abstract

The utility model provides a kind of all-around measuring equipment, comprising: positioning fixture, for placing measured workpiece;First measuring mechanism, it is set in the above of the positioning fixture, including first three-axis motion module and first measurement component, the first three-axis motion module is used to drive the first measurement component movement, to measure the front of the measured workpiece;Second measuring mechanism, it is set in the below of the positioning fixture, including second three-axis motion module and second measurement component, the second three-axis motion module is used to drive the second measurement component movement, to measure the back of the measured workpiece;Four third measuring mechanisms are respectively set in the left side, rear side, right side and front side of the positioning fixture;The third measuring mechanism includes third three-axis motion module and third measurement component, the third three-axis motion module is used to drive the third measurement component movement, to measure the side of the measured workpiece.

Description

Technical Field

[0001] This utility model relates to the field of measurement technology, specifically to an all-around measurement device. Background Technology

[0002] In the field of industrial inspection, the inspection of workpiece dimensions and morphology is a key step in ensuring product quality. For powder metallurgy die-cast parts, it is necessary to simultaneously construct three surfaces to establish a common reference, and then measure the corresponding six surfaces based on this reference. The measurements involved include thickness, height difference, contour, and planar dimensions.

[0003] Traditional inspection methods mostly employ a single measurement approach. For example, contour is measured using a contour meter, height difference is measured using a coordinate measuring machine with a rotating fixture, thickness is measured using a height gauge, and planar dimensions are measured using a video measuring instrument with a rotating fixture. All these methods require multiple flips to establish a reference, multiple flips for multi-faceted measurements, and multiple clamping operations to complete the entire measurement. This results in low efficiency, high cost, and the repeated placement and flipping of the workpiece introduces measurement errors. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an all-round measuring device and measuring method to solve the problems of low efficiency, high cost and large measurement error of the existing measuring methods.

[0005] To achieve the above objectives, this utility model provides an omnidirectional measuring device, comprising:

[0006] Positioning fixture, used to place the workpiece to be measured;

[0007] A first measuring mechanism is disposed above the positioning fixture. The first measuring mechanism includes a first three-axis motion module and a first measuring component. The first three-axis motion module is used to drive the first measuring component to move in order to measure the front side of the workpiece to be measured.

[0008] The second measuring mechanism is disposed below the positioning fixture. The second measuring mechanism includes a second three-axis motion module and a second measuring component. The second three-axis motion module is used to drive the second measuring component to move in order to measure the back side of the workpiece to be measured.

[0009] The third measuring mechanism comprises four such mechanisms, which are distributed at intervals on the left, rear, right, and front sides of the positioning fixture. Each third measuring mechanism includes a third three-axis motion module and a third measuring component. The third three-axis motion module is used to drive the third measuring component to move in order to measure the side of the workpiece to be measured.

[0010] In some embodiments, the first three-axis motion module includes a first X-axis motion module, a first Y-axis motion module, and a first Z-axis motion module;

[0011] The first measuring component is mounted on the first Z-axis motion module, the first Z-axis motion module is mounted on the first Y-axis motion module, and the first Y-axis motion module is mounted on the first X-axis motion module.

[0012] The first X-axis motion module and the first Y-axis motion module are used to drive the first measuring component to move along the front of the workpiece to be measured, and the first Z-axis motion module is used to drive the first measuring component to move closer to or away from the front of the workpiece to be measured.

[0013] In some embodiments, the second three-axis motion module includes a second X-axis motion module, a second Y-axis motion module, and a second Z-axis motion module;

[0014] The second measuring component is mounted on the second Z-axis motion module, the second Z-axis motion module is mounted on the second Y-axis motion module, and the second Y-axis motion module is mounted on the second X-axis motion module.

[0015] The second X-axis motion module and the second Y-axis motion module are used to drive the second measuring component to move along the back of the workpiece to be measured, and the second Z-axis motion module is used to drive the second measuring component to move closer to or further away from the back of the workpiece to be measured.

[0016] In some embodiments, the third three-axis motion module includes a third X-axis motion module, a third Y-axis motion module, and a third Z-axis motion module;

[0017] The third measuring component is disposed on the third Z-axis motion module, the third Z-axis motion module is disposed on the third Y-axis motion module, and the third Y-axis motion module is disposed on the third X-axis motion module;

[0018] The third X-axis motion module and the third Z-axis motion module are used to drive the third measuring component to move along the side of the workpiece to be measured, and the third Y-axis motion module is used to drive the third measuring component to move closer to or further away from the side of the workpiece to be measured.

[0019] In some embodiments, the first measurement component includes a first image acquisition module and a first laser projection module;

[0020] The first laser projection module is disposed on one side of the first image acquisition module, and the projection direction of the first laser projection module is parallel to the acquisition direction of the first image acquisition module.

[0021] The first image acquisition module is used to measure the planar features of the front of the workpiece under test, and the first laser projection module is used to measure the three-dimensional features of the front of the workpiece under test.

[0022] In some embodiments, the second measurement component includes a second image acquisition module and a second laser projection module;

[0023] The second laser projection module is disposed on one side of the second image acquisition module, and the projection direction of the second laser projection module is parallel to the acquisition direction of the second image acquisition module;

[0024] The second image acquisition module is used to measure the planar features of the back side of the workpiece under test, and the second laser projection module is used to measure the three-dimensional features of the back side of the workpiece under test.

[0025] In some embodiments, the third measurement component includes a third image acquisition module and a third laser projection module;

[0026] The third laser projection module is disposed to the side of the third image acquisition module, and the projection direction of the third laser projection module is parallel to the acquisition direction of the third image acquisition module.

[0027] The third image acquisition module is used to measure the planar features of the side surface of the workpiece under test, and the third laser projection module is used to measure the three-dimensional features of the side surface of the workpiece under test.

[0028] In some embodiments, the positioning fixture includes:

[0029] A support member, wherein a positioning groove is provided in the middle of the support member;

[0030] A positioning element is removably disposed in the positioning groove. The positioning element is adapted to the workpiece to be measured so that the workpiece to be measured will not obstruct the measurement area after being placed on the positioning element.

[0031] In some embodiments, the positioning element is provided with a fixing element, which is used to fix the workpiece to be tested on the positioning element.

[0032] In some embodiments, the fastener is a magnet or a suction cup.

[0033] Compared with the prior art, the advantages of this utility model are as follows:

[0034] This utility model discloses an omnidirectional measuring device. The first measuring mechanism measures the front of the workpiece from a top view, the second measuring mechanism measures the back of the workpiece from a bottom view, and multiple third measuring mechanisms measure the various sides of the workpiece from a side view. This allows for the simultaneous measurement of all surfaces of the workpiece. Because each measuring mechanism is independent, measurements of all surfaces can be performed simultaneously. Only one placement of the workpiece is required to quickly obtain all necessary dimensions, significantly improving measurement efficiency and eliminating the need for frequent switching of measuring equipment, thus reducing measurement costs. Furthermore, during omnidirectional measurement, the workpiece remains statically held on the positioning fixture, effectively ensuring the accuracy and certainty of its position during measurement. This completely eliminates measurement errors caused by multiple placements and rotations of the workpiece, greatly improving measurement precision. Attached Figure Description

[0035] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0036] Figure 1 This is a schematic diagram of the structure of the omnidirectional measuring device according to an embodiment of this application. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of the omnidirectional measuring device according to an embodiment of this application. Figure 2 ;

[0038] Figure 3 This is a schematic diagram of the structure of the omnidirectional measuring device according to an embodiment of this application. Figure 3 ;

[0039] Figure 4 This is a schematic diagram showing the arrangement of the third measuring mechanism according to an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the structure of the first measuring mechanism according to an embodiment of this application;

[0041] Figure 6 This is a schematic diagram of the structure of the second measuring mechanism according to an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of the structure of the third measuring mechanism according to an embodiment of this application;

[0043] Figure 8 This is a schematic diagram of the positioning fixture in an embodiment of this application. Figure 1 ;

[0044] Figure 9 This is a schematic diagram of the positioning fixture in an embodiment of this application. Figure 2 ;

[0045] Figure 10 This is a schematic diagram of the overall structure of the omnidirectional measuring device according to an embodiment of this application;

[0046] Explanation of reference numerals in the attached figures:

[0047] 1-First measuring mechanism; 2-Second measuring mechanism; 3-Third measuring mechanism; 4-Positioning fixture; 5-Workpiece to be measured; 6-Safety light curtain; 7-Start button;

[0048] 11-First three-axis motion module; 12-First measuring component; 21-Second three-axis motion module; 22-Second measuring component; 31-Third three-axis motion module; 32-Third measuring component; 41-Support component; 42-Positioning component;

[0049] 111-First X-axis motion module; 112-First Y-axis motion module; 113-First Z-axis motion module; 121-First image acquisition module; 122-First laser projection module; 211-Second X-axis motion module; 212-Second Y-axis motion module; 213-Second Z-axis motion module; 221-Second image acquisition module; 222-Second laser projection module; 311-Third X-axis motion module; 312-Third Y-axis motion module; 313-Third Z-axis motion module; 321-Third image acquisition module; 322-Third laser projection module; 411-Positioning slot; 421-Fixing component;

[0050] 1211 First telecentric lens; 1212 First coaxial light source; 1213 First CCD industrial camera; 2211 Second telecentric lens; 2212 Second coaxial light source; 2213 Second CCD industrial camera; 3211 Third telecentric lens; 3212 Third coaxial light source; 3213 Third CCD industrial camera. Detailed Implementation

[0051] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0052] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0053] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In addition, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In one embodiment of this utility model, such as Figure 1-10 As shown, an all-around measuring device is provided, including a first measuring mechanism 1, a second measuring mechanism 2, a third measuring mechanism 3, and a positioning fixture 4.

[0055] The positioning fixture 4 is used to place the workpiece 5 to be measured, and the positioning fixture 4 serves as a reference for setting up the first measuring mechanism 1, the second measuring mechanism 2 and the third measuring mechanism 3.

[0056] The first measuring mechanism 1 is positioned above the positioning fixture 4. It includes a first three-axis motion module 11 and a first measuring component 12. The first three-axis motion module 11 is used to drive the first measuring component 12 to perform three-axis motion, thereby enabling measurement of the front of the workpiece 5 to be measured from a top view.

[0057] The second measuring mechanism 2 is located below the positioning fixture 4. It includes a second three-axis motion module 21 and a second measuring component 22. The second three-axis motion module 21 is used to drive the second measuring component 22 to perform three-axis motion, so as to measure the back of the workpiece 5 to be measured from the bottom perspective.

[0058] There are multiple third measuring mechanisms 3, which are distributed at intervals on the side of the positioning fixture 4. Each third measuring mechanism 3 includes a third three-axis motion module 31 and a third measuring component 32. The third three-axis motion module 31 is used to drive the third measuring component 32 to perform three-axis motion, so as to measure the side of the workpiece 5 to be measured from a side view. Due to the setting of multiple third measuring mechanisms 3, each side of the workpiece 5 to be measured can be measured from different side views.

[0059] Applying the technical solution of this embodiment, the first measuring mechanism 1 measures the front of the workpiece 5 from a top perspective, the second measuring mechanism 2 measures the back of the workpiece 5 from a bottom perspective, and multiple third measuring mechanisms 3 measure the various sides of the workpiece 5 from a side perspective. This allows for the simultaneous measurement of all surfaces of the workpiece 5. Furthermore, since each measuring mechanism is independent, measurements of all surfaces of the workpiece 5 can be performed simultaneously. Only one placement of the workpiece 5 is required to quickly obtain all the necessary dimensions, greatly improving measurement efficiency and eliminating the need for frequent switching of measuring equipment, thus reducing measurement costs. In addition, during omnidirectional measurement of the workpiece 5, it remains statically held on the positioning fixture 4. This effectively ensures the accuracy and certainty of the workpiece 5's position during measurement, completely eliminating measurement errors caused by multiple placements and flips of the workpiece 5, and greatly improving measurement accuracy.

[0060] See some of the public information. Figure 4 There are four third measuring mechanisms 3, which are respectively set on the left, front, right and rear sides of the positioning fixture 4. During operation, the third measuring mechanism 3 on the left side measures the left side of the workpiece to be measured, the third measuring mechanism 3 on the front side measures the front side of the workpiece to be measured, the third measuring mechanism 3 on the right side measures the right side of the workpiece to be measured, and the third measuring mechanism 3 on the rear side measures the rear side of the workpiece to be measured.

[0061] In this way, by combining the first measuring mechanism 1 and the second measuring mechanism 2, the measurement of six sides of the workpiece to be measured can be completed at one time: the front side, the left side, the front side, the right side, the rear side, and the back side. Moreover, the measurement of the six sides is carried out simultaneously, resulting in extremely high measurement efficiency.

[0062] See some of the public information. Figure 5 The first three-axis motion module 11 mainly includes a first X-axis motion module 111, a first Y-axis motion module 112, and a first Z-axis motion module 113. The first measuring component 12 is mounted on the first Z-axis motion module 113, the first Z-axis motion module 113 is mounted on the first Y-axis motion module 112, and the first Y-axis motion module 112 is mounted on the first X-axis motion module 111. The first X-axis motion module 111 and the first Y-axis motion module 112 are used to move the first measuring component 12 along the front side of the workpiece to be measured, and the first Z-axis motion module 113 is used to move the first measuring component 12 closer to or further away from the front side of the workpiece to be measured.

[0063] Specifically, the first X-axis motion module 111, the first Y-axis motion module 112, and the first Z-axis motion module 113 have the same structure. For example, they can adopt a servo motor plus a lead screw slide, or they can adopt a compound telescopic cylinder or other linear drive mechanism with a certain stroke.

[0064] The first measuring component 12 is vertically arranged at the drive end of the first Z-axis motion module 113, and mainly includes a first image acquisition module 121 and a first laser projection module 122. The first laser projection module 122 is located on one side of the first image acquisition module 121, and the projection direction of the first laser projection module 122 is parallel to the acquisition direction of the first image acquisition module 121. The first image acquisition module 121 is used to measure the planar features of the front of the workpiece to be measured, and the first laser projection module 122 is used to measure the three-dimensional features of the front of the workpiece to be measured.

[0065] Specifically, the first image acquisition module 121 includes a first telecentric lens 1211, a first coaxial light source 1212 mounted on the objective lens end of the first telecentric lens 1211, and a first CCD industrial camera 1213 mounted on the eyepiece end of the first telecentric lens 1211. The first coaxial light source 1212 provides a suitable lighting environment. The first telecentric lens 1211, in conjunction with the first CCD industrial camera 1213, captures the point, line, and surface features of the front of the workpiece to be measured, thereby realizing the measurement of planar geometric features (including length, width, diameter, spacing, etc.).

[0066] The first laser projection module 122 adopts the coaxial point laser measurement principle. It forms a point cloud by scanning the front of the workpiece under test with a laser, and then fits it into a line or surface to realize the measurement of three-dimensional morphological features (including height, flatness, step difference, contour, etc.).

[0067] During operation, the first X-axis motion module 111 and the first Y-axis motion module 112 drive the first Z-axis motion module 113 and the first measuring component 12 thereon to move in the horizontal plane above the workpiece to be measured, so that the first measuring component 12 can be positioned at any measuring position on the front of the workpiece to be measured. Then the first Z-axis motion module 113 moves to adjust the distance between the first measuring component 12 and the front of the workpiece to be measured. The first image acquisition module 121 realizes the measurement of the planar geometric features (including length, width, diameter, spacing, etc.) of the front of the workpiece to be measured. The first laser projection module 122 realizes the measurement of the three-dimensional morphological features (including height, flatness, step difference, contour, etc.) of the front of the workpiece to be measured.

[0068] See Figure 6The second three-axis motion module 21 mainly includes a second X-axis motion module 211, a second Y-axis motion module 212, and a second Z-axis motion module 213. The second measuring component 22 is mounted on the second Z-axis motion module 213, the second Z-axis motion module 213 is mounted on the second Y-axis motion module 212, and the second Y-axis motion module 212 is mounted on the second X-axis motion module 211. The second X-axis motion module 211 and the second Y-axis motion module 212 are used to move the second measuring component 22 along the back side of the workpiece to be measured, and the second Z-axis motion module 213 is used to move the second measuring component 22 closer to or further away from the back side of the workpiece to be measured.

[0069] The second X-axis motion module 211, the second Y-axis motion module 212, and the second Z-axis motion module 213 have the same structure. For example, they can adopt a servo motor plus a lead screw slide structure, or they can adopt a compound telescopic cylinder or other linear drive mechanism with a certain stroke.

[0070] The second measuring component 22 is vertically arranged at the drive end of the second Z-axis motion module 213, and mainly includes a second image acquisition module 221 and a second laser projection module 222. The second laser projection module 222 is located on one side of the second image acquisition module 221, and the projection direction of the second laser projection module 222 is parallel to the acquisition direction of the second image acquisition module 221. The second image acquisition module 221 is used to measure the planar features of the back of the workpiece to be measured, and the second laser projection module 222 is used to measure the three-dimensional features of the back of the workpiece to be measured.

[0071] Specifically, the second image acquisition module 221 includes a second telecentric lens 2211, a second coaxial light source 2212 mounted on the objective lens end of the second telecentric lens 2211, and a second CCD industrial camera 2213 mounted on the eyepiece end of the second telecentric lens 2211. The second coaxial light source 2212 provides a suitable lighting environment. The second telecentric lens 2211, in conjunction with the second CCD industrial camera 2213, captures the point, line, and surface features on the back of the workpiece to be measured, thereby realizing the measurement of planar geometric features (including length, width, diameter, spacing, etc.).

[0072] The second laser projection module 222 adopts the coaxial point laser measurement principle. It forms a point cloud by scanning the back of the workpiece under test with a laser, and then fits it into a line or surface to realize the measurement of three-dimensional morphological features (including height, flatness, step difference, contour, etc.).

[0073] During operation, the second X-axis motion module 211 and the second Y-axis motion module 212 drive the second Z-axis motion module 213 and the second measuring component 22 thereon to move in the horizontal plane below the workpiece to be measured, so that the second measuring component 22 can be positioned at any measuring position on the back of the workpiece to be measured. Then the second Z-axis motion module 213 moves to adjust the distance between the second measuring component 22 and the back of the workpiece to be measured. The second image acquisition module 221 realizes the measurement of the planar geometric features (including length, width, diameter, spacing, etc.) of the back of the workpiece to be measured. The second laser projection module 222 realizes the measurement of the three-dimensional morphological features (including height, flatness, step difference, contour, etc.) of the back of the workpiece to be measured.

[0074] See Figure 7 The third three-axis motion module 31 mainly includes a third X-axis motion module 311, a third Y-axis motion module 312, and a third Z-axis motion module 313. The third measuring component 32 is mounted on the third Z-axis motion module 313, the third Z-axis motion module 313 is mounted on the third Y-axis motion module 312, and the third Y-axis motion module 312 is mounted on the third X-axis motion module 311. The third X-axis motion module 311 and the third Z-axis motion module 313 are used to move the third measuring component 32 along the side of the workpiece to be measured, and the third Y-axis motion module 312 is used to move the third measuring component 32 closer to or further away from the side of the workpiece to be measured.

[0075] The third X-axis motion module 311, the third Y-axis motion module 312, and the third Z-axis motion module 313 have the same structure. For example, they can adopt a servo motor plus a lead screw slide, or they can adopt a compound telescopic cylinder or other linear drive mechanism with a certain stroke.

[0076] The third measuring component 32 is horizontally positioned at the drive end of the third Z-axis motion module 313. It mainly includes a third image acquisition module 321 and a third laser projection module 322. The third laser projection module 322 is located on one side of the third image acquisition module 321. The projection direction of the third laser projection module 322 is parallel to the acquisition direction of the third image acquisition module 321. The third image acquisition module 321 is used to measure the planar features of the side of the workpiece to be measured, and the third laser projection module 322 is used to measure the three-dimensional features of the side of the workpiece to be measured.

[0077] Specifically, the third image acquisition module 321 includes a third telecentric lens 3211, a third coaxial light source 3212 mounted on the objective lens end of the third telecentric lens 3211, and a third CCD industrial camera 3213 mounted on the eyepiece end of the third telecentric lens 3211. The third coaxial light source 3212 provides a suitable lighting environment. The third telecentric lens 3211, in conjunction with the third CCD industrial camera 3213, captures the point, line, and surface features of the side of the workpiece to be measured, thereby realizing the measurement of planar geometric features (including length, width, diameter, spacing, etc.).

[0078] The third laser projection module 322 adopts the coaxial point laser measurement principle. It forms a point cloud by scanning the side of the workpiece under test with a laser, and then fits it into a line or surface to realize the measurement of three-dimensional morphological features (including height, flatness, step difference, contour, etc.).

[0079] During operation, the third X-axis motion module 311 and the third Z-axis motion module 313 work together to move the third measuring component 32 in a vertical plane parallel to the side of the workpiece to be measured, so that the second measuring component 32 can be positioned at any measuring position on the side of the workpiece to be measured. Then, the third Y-axis motion module 312 moves to adjust the distance between the second measuring component 32 and the side of the workpiece to be measured. The third image acquisition module 321 realizes the measurement of the planar geometric features (including length, width, diameter, spacing, etc.) of the side of the workpiece to be measured. The second laser projection module 322 realizes the measurement of the three-dimensional morphological features (including height, flatness, step difference, contour, etc.) of the side of the workpiece to be measured.

[0080] See some of the public information. Figure 8 The positioning fixture 4 mainly includes a support member 41 and a positioning member 42. The support member 41 has a frame structure, forming a clearance space for the free movement of each measuring mechanism. A positioning groove 411 is formed in the middle of the support member 41 for placing the positioning member 42. To ensure that the support member 41 has sufficient rigidity to stably support the positioning member 42 and the workpiece 5 to be measured, the support member 41 can be made of aluminum alloy.

[0081] See Figure 9 The positioning element 42 is used to install the workpiece 5 to be measured. In order to ensure that the workpiece 5 to be measured has sufficient measurement position, the positioning element 42 needs to be adapted to the workpiece 5 to be measured. That is to say, the corresponding positioning element 42 needs to be designed according to the shape characteristics of the workpiece 5 to be measured, so that neither the support element 41 nor the positioning element 42 will block the main or important measurement parts of each plane of the workpiece 5 to be measured.

[0082] When using it, first select a suitable positioning component 42, install the workpiece 5 to be measured onto the positioning component 42, and then place the positioning component 42 and the workpiece 5 to be measured together into the positioning groove 411 in the middle of the support component 41, and then start the measurement program.

[0083] In some publicly available descriptions, to ensure that the workpiece 5 remains stationary throughout the measurement process, a fixing element 421 is provided on the positioning element 42. After the workpiece 5 is installed on the positioning element 42, the fixing element 421 can fix the workpiece 5 on the positioning element 42. Specifically, the fixing element 421 can be a magnet or a suction cup provided on the positioning element 42, as long as it can securely fix the workpiece 5.

[0084] In some disclosures, to prevent the positioning element 42 from scratching the workpiece 5, the positioning element 42 is made of bakelite. Meanwhile, to facilitate the placement and removal of the positioning element 42, openings are provided on opposite sides of the positioning groove 411 in the middle of the support element 41. Furthermore, to prevent incorrect placement of the positioning element 42, one corner of the positioning element 42 employs a C-corner anti-foolproof design.

[0085] See Figures 1 to 3 The outer periphery of the positioning fixture 4 is supported on the worktable by a baffle. The first measuring mechanism 1 is installed above the worktable by a bracket, the second measuring mechanism 2 is installed below the worktable by a bracket, and the third measuring mechanism 3 is installed at intervals on the worktable.

[0086] See Figure 10 The omnidirectional measuring device in this embodiment can be equipped with a protective cover for protection, and a safety light curtain 6 is installed at the feed inlet to ensure that the device is in a stopped state during loading and unloading operations. A start button 7 is installed on each side of the safety light curtain 6, adopting a dual-button start to ensure that both hands are in a safe area when starting.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0088] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0089] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0090] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A comprehensive measuring device, characterized in that, include: Positioning fixture (4) is used to place the workpiece to be tested (5); The first measuring mechanism (1) is disposed above the positioning fixture (4). The first measuring mechanism (1) includes a first three-axis motion module (11) and a first measuring component (12). The first three-axis motion module (11) is used to drive the first measuring component (12) to move in order to measure the front side of the workpiece (5) to be measured. The second measuring mechanism (2) is located below the positioning fixture (4). The second measuring mechanism (2) includes a second three-axis motion module (21) and a second measuring component (22). The second three-axis motion module (21) is used to drive the second measuring component (22) to move in order to measure the back side of the workpiece (5) to be measured. The third measuring mechanism (3) consists of four parts, which are respectively located on the left, rear, right and front sides of the positioning fixture (4). The third measuring mechanism (3) includes a third three-axis motion module (31) and a third measuring component (32). The third three-axis motion module (31) is used to drive the third measuring component (32) to move in order to measure the side of the workpiece (5) to be measured.

2. The omnidirectional measuring device according to claim 1, characterized in that, The first three-axis motion module (11) includes a first X-axis motion module (111), a first Y-axis motion module (112), and a first Z-axis motion module (113); The first measuring component (12) is disposed on the first Z-axis motion module (113), the first Z-axis motion module (113) is disposed on the first Y-axis motion module (112), and the first Y-axis motion module (112) is disposed on the first X-axis motion module (111). The first X-axis motion module (111) and the first Y-axis motion module (112) are used to drive the first measuring component (12) to move along the front of the workpiece (5) to be measured, and the first Z-axis motion module (113) is used to drive the first measuring component (12) to move closer to or away from the front of the workpiece (5) to be measured.

3. The omnidirectional measuring device according to claim 2, characterized in that, The second three-axis motion module (21) includes a second X-axis motion module (211), a second Y-axis motion module (212), and a second Z-axis motion module (213); The second measuring component (22) is disposed on the second Z-axis motion module (213), the second Z-axis motion module is disposed on the second Y-axis motion module (212), and the second Y-axis motion module (212) is disposed on the second X-axis motion module (211); The second X-axis motion module (211) and the second Y-axis motion module (212) are used to drive the second measuring component (22) to move along the back of the workpiece (5) to be measured, and the second Z-axis motion module (213) is used to drive the second measuring component (22) to move closer to or away from the back of the workpiece (5) to be measured.

4. The omnidirectional measuring device according to claim 3, characterized in that, The third three-axis motion module (31) includes a third X-axis motion module (311), a third Y-axis motion module (312), and a third Z-axis motion module (313); The third measuring component (32) is disposed on the third Z-axis motion module (313), the third Z-axis motion module (313) is disposed on the third Y-axis motion module (312), and the third Y-axis motion module (312) is disposed on the third X-axis motion module (311). The third X-axis motion module (311) and the third Z-axis motion module (313) are used to drive the third measuring component (32) to move along the side of the workpiece (5) to be measured, and the third Y-axis motion module (312) is used to drive the third measuring component (32) to move closer to or away from the side of the workpiece (5) to be measured.

5. The omnidirectional measuring device according to claim 2, characterized in that, The first measurement component (12) includes a first image acquisition module (121) and a first laser projection module (122); The first laser projection module (122) is disposed on one side of the first image acquisition module (121), and the projection direction of the first laser projection module (122) is parallel to the acquisition direction of the first image acquisition module (121). The first image acquisition module (121) is used to measure the planar features of the front of the workpiece (5) to be tested, and the first laser projection module (122) is used to measure the three-dimensional features of the front of the workpiece (5) to be tested.

6. The omnidirectional measuring device according to claim 5, characterized in that, The second measurement component (22) includes a second image acquisition module (221) and a second laser projection module (222); The second laser projection module (222) is disposed on one side of the second image acquisition module (221), and the projection direction of the second laser projection module (222) is parallel to the acquisition direction of the second image acquisition module (221). The second image acquisition module (221) is used to measure the planar features of the back side of the workpiece (5) to be tested, and the second laser projection module (222) is used to measure the three-dimensional features of the back side of the workpiece (5) to be tested.

7. The omnidirectional measuring device according to claim 6, characterized in that, The third measurement component (32) includes a third image acquisition module (321) and a third laser projection module (322); The third laser projection module (322) is disposed to the side of the third image acquisition module (321), and the projection direction of the third laser projection module (322) is parallel to the acquisition direction of the third image acquisition module (321). The third image acquisition module (321) is used to measure the planar features of the side of the workpiece (5) to be tested, and the third laser projection module (322) is used to measure the three-dimensional features of the side of the workpiece (5) to be tested.

8. The omnidirectional measuring device according to claim 1, characterized in that, The positioning fixture (4) includes: Support member (41), wherein a positioning groove (411) is provided in the middle of the support member; The positioning element (42) is removably disposed in the positioning groove (411). The positioning element (42) is adapted to the workpiece to be measured (5) so that the workpiece to be measured (5) will not block the measurement part after being placed on the positioning element (42).

9. The omnidirectional measuring device according to claim 8, characterized in that, The positioning member (42) is provided with a fixing member (421), which is used to fix the workpiece (5) to be tested on the positioning member (42).

10. The omnidirectional measuring device according to claim 9, characterized in that, The fastener (421) is a magnet or a suction cup.

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