Detection device

Abstract

The utility model provides a detection device, which comprises an operation table, a first detection part, a second detection part and a detection control part, and is characterized in that the first detection part is arranged on the operation table to bear a to-be-detected workpiece, the first detection part is provided with a plurality of first distance sensors, and the first distance sensors are used for sensing distance information from a first end surface of the to-be-detected workpiece; the second detection part is arranged on the side, away from the operation table, of the first detection part, a plurality of second distance sensors are arranged on the second detection part and used for sensing distance information from the second end face of the to-be-detected workpiece, and coordinate information of the first distance sensors and coordinate information of the second distance sensors are stored in the detection and control part; the detection and control part is electrically connected with the first detection part and the second detection part, and the detection and control part is used for receiving distance information transmitted by the plurality of first distance sensors and the plurality of second distance sensors; the side, away from the first detection part, of the operation table is provided with supporting legs, and the ends, away from the operation table, of the supporting legs are provided with universal wheels.

Description

Technical Field

[0001] The present application belongs to the technical field of drug column appearance detection, and specifically relates to a detection device. Background Art

[0002] Grain is a solid propellant with geometric shape and size. Its structural integrity affects the effect of combustion propulsion. Therefore, the appearance quality of the grain has an important influence on the quality of the produced grain.

[0003] The existing appearance inspection of the drug column is basically still in the stage of artificial vision mode and subjective judgment, and the external dimensions of the drug column are measured manually. Since the end face of the drug column usually has high or low points or tilts, and some drug column end faces even have R angles, inner depressions or protrusions, it is difficult to manually measure the external dimensions of the drug column, and the correctness of the test results cannot be ensured. At the same time, the test efficiency is low. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present application is to provide a detection device, which can automatically detect the shape and size of the end face of the workpiece to be detected by setting a first detection part and a second detection part, thereby improving the accuracy of the detection result and the detection efficiency.

[0005] In order to solve the above problems, the present application provides a detection device, comprising:

[0006] Operation table;

[0007] A first detection unit, the first detection unit is arranged on the operating table and is used to receive the workpiece to be measured, the first detection unit has a plurality of first distance sensors, and the plurality of first distance sensors are used to sense the distance information from the first end surface of the workpiece to be measured;

[0008] A second detection part, the second detection part is arranged on a side of the first detection part away from the operating table and opposite to the first detection part, and the second detection part has a plurality of second distance sensors, and the plurality of second distance sensors are used to sense distance information from a second end surface of the workpiece to be measured;

[0009] A control unit, wherein the control unit stores coordinate information of a plurality of the first distance sensors and a plurality of the second distance sensors, the control unit is electrically connected to the first detection unit and the second detection unit respectively, and the control unit is used to receive distance information transmitted by the plurality of the first distance sensors and the plurality of the second distance sensors;

[0010] Wherein, a support leg is arranged on a side of the operating table away from the first detection part, and a universal wheel is arranged on an end of the support leg away from the operating table.

[0011] Optionally, the detection device further includes:

[0012] An image acquisition unit is liftably arranged on the operating table and is electrically connected to the inspection unit. The image acquisition unit is used to identify the serial number of the workpiece to be measured, and the serial number is suitable for reflecting the model of the workpiece to be measured.

[0013] Optionally, the detection device further includes:

[0014] A weighing unit is disposed between the first detection unit and the operating table and is electrically connected to the inspection unit. The weighing unit is used to sense the weight information of the workpiece to be measured.

[0015] Optionally, the detection device further includes:

[0016] A lifting part, wherein the lifting part is arranged on the operating table, the second detecting part is connected to the lifting part, and the lifting part is suitable for driving the second detecting part to move along a direction perpendicular to the first detecting part.

[0017] Optionally, the first detection portion includes a first bottom surface and a first top surface, a plurality of the first distance sensors are arranged on the first bottom surface, a plurality of first openings are opened on the first top surface at positions relative to the plurality of the first distance sensors, and a plurality of first top pillars are slidably arranged in the plurality of the first openings in a one-to-one correspondence;

[0018] The second detection portion includes a second bottom surface and a second top surface, a plurality of second distance sensors are arranged on the second bottom surface, a plurality of second openings are opened on the second top surface at positions relative to the plurality of second distance sensors, and a plurality of second top pillars are slidably arranged in the plurality of second openings in a one-to-one corresponding manner.

[0019] Optionally, the first detection unit further includes a first elastic member, the first elastic member is arranged between the first top column and the first distance sensor, a first end of the first elastic member is connected to the first top column, and a second end of the first elastic member is relatively fixed to the first bottom surface;

[0020] The second detection unit also includes a second elastic member, which is arranged between the second top column and the second distance sensor, wherein a first end of the second elastic member is connected to the second top column, and a second end of the second elastic member is relatively fixed to the second bottom surface.

[0021] Optionally, the first detection portion further includes a first flexible sleeve, the first flexible sleeve is disposed on the first elastic member, a first end of the first flexible sleeve is relatively fixed to the first top column, and a second end of the first flexible sleeve is relatively fixed to the first bottom surface;

[0022] The second detection part further includes a second flexible sleeve, the second flexible sleeve is arranged on the second elastic member, a first end of the second flexible sleeve is relatively fixed to the second top column, and a second end of the second flexible sleeve is relatively fixed to the second bottom surface;

[0023] Wherein, the surfaces of the first flexible sleeve and the second flexible sleeve both have annular wrinkles.

[0024] Beneficial Effects

[0025] The embodiment of the utility model provides a detection device, wherein the detection device determines the shape and size of the end face of the workpiece to be measured by obtaining the difference in distance information sensed by distance sensors at different positions, thereby realizing the detection of the outer dimensions of the workpiece to be measured. In the prior art, it is difficult to accurately detect the shape and size of the end face of the workpiece to be measured with poor flatness by manual measurement. Compared with the prior art, in the present application document, the distance sensor senses the distance information from the end face of the workpiece to be measured. Since the distances of various points on the end face of the workpiece to be measured with poor flatness are different from the distance sensor, the shape and size of the end face of the workpiece to be measured are determined by the difference in distance information sensed by distance sensors at different positions, thereby realizing the detection of the outer dimensions of the workpiece to be measured, and improving the accuracy of the detection results. In addition, the detection device can quickly and accurately identify the coded information on the workpiece to be measured by setting an image acquisition unit, thereby reducing labor costs and improving detection efficiency. At the same time, it can avoid errors that may occur when manually entering coded information, thereby improving the accuracy of the detection results. Finally, the detection device can automatically monitor and record the weight of the workpiece to be measured by setting a weighing unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a detection device according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of the first detection unit or the second detection unit in an embodiment of the present application;

[0028] Figure 3 A cross-sectional view of a first detection portion or a second detection portion according to an embodiment of the present application;

[0029] Figure 4 This is a working principle diagram of the detection device according to an embodiment of the present application.

[0030] The reference numerals are:

[0031] 1. Operating table; 2. First detection part; 21. First bottom surface; 22. First top surface; 221. First opening; 23. First distance sensor; 24. First top column; 25. First elastic member; 26. First flexible sleeve; 27. First detection column; 3. Second detection part; 31. Second bottom surface; 32. Second top surface; 321. Second opening; 33. Second distance sensor; 34. Second top column; 35. Second elastic member; 36. Second flexible sleeve; 37. Second detection column; 4. Image acquisition part; 5. Weighing part; 6. Lifting part; 61. Lifting plate; 62. Guide rail. DETAILED DESCRIPTION

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] See also Figures 1 to 4As shown, an embodiment of the present application provides a detection device, including: an operating table 1; a first detection part 2, the first detection part 2 is arranged on the operating table 1, and is used to receive the workpiece to be measured, and the first detection part 2 has a plurality of first distance sensors 23, and the plurality of first distance sensors 23 are used to sense the distance information from the first end face of the workpiece to be measured; a second detection part 3, the second detection part 3 is arranged on the side of the first detection part 2 away from the operating table 1 and opposite to the first detection part 2, and the second detection part 3 has a plurality of second distance sensors 33, and the plurality of second distance sensors 33 are used to sense the distance information from the second end face of the workpiece to be measured; a detection and control part, the detection and control part stores the coordinate information of the plurality of first distance sensors 23 and the plurality of second distance sensors 33, the detection and control part is electrically connected to the first detection part 2 and the second detection part 3, respectively, and the detection and control part determines the shape and size of the first end face and the second end face based on the coordinate information of the plurality of first distance sensors 23 and the plurality of second distance sensors 33 and the distance information transmitted by the plurality of first distance sensors 23 and the plurality of second distance sensors 33.

[0037] The detection device provided in the embodiment of the utility model mainly determines the shape and size of the end face of the workpiece to be measured by the difference in distance information sensed by the distance sensors at different positions obtained by the inspection and control unit, thereby realizing the detection of the outer dimensions of the workpiece to be measured. In the prior art, it is difficult to accurately detect the shape and size of the end face of the workpiece to be measured with poor flatness by manual measurement. Compared with the prior art, in the present application document, the distance sensor senses the distance information from the end face of the workpiece to be measured. Since the distances of various points on the end face of the workpiece to be measured with poor flatness are different from the distance sensor, the shape and size of the end face of the workpiece to be measured are determined by the difference in distance information sensed by the distance sensors at different positions, thereby realizing the detection of the outer dimensions of the workpiece to be measured and improving the accuracy of the detection results.

[0038] Among them, the workpiece to be tested can be a drug column, electronic components, watch covers, composite materials such as plastics, ceramics, buttons, magnesium, aluminum and their alloy parts and other parts that require appearance inspection. In the embodiment of the present application, the workpiece to be tested is a drug column.

[0039] Among them, the detection device is used to detect the external dimensions of the workpiece to be measured. It is understandable that since the shape of the end face of the drug column is not limited to a plane, there may be high or low points or inclinations, and even R angles, inner depressions or protrusions, which makes it difficult to manually measure the external dimensions of the drug column and cannot ensure the correctness of the detection results. In the embodiment of the present application, the detection device can accurately detect the shape and size of the end face of the workpiece to be measured with poor flatness.

[0040] The detection device includes an operating table 1, a first detection unit 2, a second detection unit 3 and a detection unit. The first detection unit 2 and the second detection unit 3 are arranged on the operating table 1, and the detection unit is electrically connected to the first detection unit 2 and the second detection unit 3 respectively.

[0041] Among them, the operating table 1 can be a rectangular work table or a circular work table, and the operating table 1 can be made of a metal with strong rigidity such as carbon steel or stainless steel. In the embodiment of the present application, the operating table 1 is a rectangular work table, and the operating table 1 is preferably made of stainless steel, which has good corrosion resistance, dirt resistance, impact resistance and load-bearing capacity, and can extend the service life of the operating table 1.

[0042] Specifically, the first detection part 2 and the second detection part 3 are arranged opposite to each other in a direction perpendicular to the operating table 1 , and the workpiece to be detected is placed between the first detection part 2 and the second detection part 3 .

[0043] The end of the workpiece to be measured close to the first detection part 2 is a first end surface, and the end of the workpiece to be measured close to the second detection part 3 is a second end surface.

[0044] The first detection unit 2 is provided with a plurality of first distance sensors 23 , and the plurality of first distance sensors 23 are located in the same plane, and the plane where the plurality of first distance sensors 23 are located is parallel to the operating table 1 .

[0045] Specifically, the detection ends of the plurality of first distance sensors 23 are arranged toward the first end surface, and the plurality of first distance sensors 23 are used to sense the distance information from the first end surface. It should be noted that when the flatness of the first end surface is poor, the distances between each point on the first end surface and the plurality of first distance sensors 23 are different, that is, the distance information sensed by the plurality of first distance sensors 23 is different. In the present application, the plurality of first distance sensors 23 are arranged to detect the flatness of the first end surface.

[0046] The second detection unit 3 is provided with a plurality of second distance sensors 33 , and the plurality of second distance sensors 33 are located in the same plane, and the plane where the plurality of second distance sensors 33 are located is parallel to the operating table 1 .

[0047] Specifically, the detection ends of the plurality of second distance sensors 33 are arranged toward the second end surface, and the plurality of second distance sensors 33 are used to sense the distance information from the second end surface. It should be noted that when the flatness of the second end surface is poor, the distances between each point on the second end surface and the plurality of second distance sensors 33 are different, that is, the distance information sensed by the plurality of second distance sensors 33 is different. In the present application, the plurality of second distance sensors 33 are provided to detect the flatness of the second end surface.

[0048] Among them, several first distance sensors 23 and several second distance sensors 33 can be laser distance sensors, ultrasonic distance sensors, infrared distance sensors or millimeter-level radar distance sensors, etc., and the present application does not make further limitations. In the embodiment of the present application, several first distance sensors and several second distance sensors 33 are all laser distance sensors. The laser distance sensor is used to emit detection light to the workpiece to be measured and judge the distance based on the reception time of the reflected light.

[0049] The distance between two adjacent laser distance sensors is 3-10 mm. For example, the distance between two adjacent laser distance sensors is 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm. It can be understood that the smallest distance between two adjacent laser distance sensors leads to more accurate detection results, but the higher the cost of the detection device. The distance between two adjacent laser distance sensors provided in the embodiment of the present application is 3-10 mm, which is the optimal range based on the accuracy of the detection results and the production cost of the detection device.

[0050] The control unit may be a host computer, and the control unit stores coordinate information of a plurality of first distance sensors 23 and a plurality of second distance sensors 33 .

[0051] Specifically, the monitoring unit stores a first coordinate system and a second coordinate system, which are three-dimensional coordinate systems. The position of the first distance sensor 23 at the center point of the first detection unit 2 is the coordinate origin (0, 0, 0) of the first coordinate system, and the first distance sensors 23 at other positions correspond to coordinate information (x1, y1, 0) in the form of coordinate axes on the first coordinate system; the position of the second distance sensor 33 at the center of the second detection unit 3 is the coordinate origin (0, 0, 0) of the second coordinate system, and the second distance sensors 33 at other positions correspond to coordinate information (x2, y2, 0) in the form of coordinate axes on the second coordinate system.

[0052] It should be noted that the position on the first end face of the workpiece to be measured relative to the first distance sensor 23 is the first detection point, and the coordinate information of the first detection point on the first coordinate system is (x1, y1, z1), and z1 is the distance between the first distance sensor 23 and the first detection point; the position on the second end face of the workpiece to be measured relative to the second distance sensor 33 is the second detection point, and the coordinate information of the second detection point on the second coordinate system is (x2, y2, z2), and z2 is the distance between the second distance sensor 33 and the second detection point. Since a plurality of first distance sensors 23 and second distance sensors 33 are provided, so that there are a plurality of first detection points on the first end face, and a plurality of second detection points on the second end face, a plurality of first detection points are provided in a one-to-one correspondence with a plurality of first distance sensors 23, and a plurality of second detection points are provided in a one-to-one correspondence with a plurality of second distance sensors 33.

[0053] The first distance sensor 23 is used to sense the distance between the first distance sensor 23 and the first detection point, ie, z1; the second distance sensor 33 is used to sense the distance between the second distance sensor 33 and the second detection point, ie, z2.

[0054] Specifically, a plurality of first distance sensors 23 and a plurality of second distance sensors 33 are electrically connected to the inspection and control unit, and the inspection and control unit can obtain the distance information sensed by the plurality of first distance sensors 23 and the plurality of second distance sensors 33. It should be noted that the inspection and control unit determines the coordinate information of a plurality of first detection points on the first coordinate system based on the distance information sensed by the plurality of first distance sensors 23, and forms a point cloud diagram of the first end face of the workpiece to be measured, so as to characterize the shape of the first end face; the inspection and control unit determines the coordinate information of a plurality of second detection points on the second coordinate system based on the distance information sensed by the plurality of second distance sensors 33, and forms a point cloud diagram of the second end face of the workpiece to be measured, so as to characterize the shape of the second end face.

[0055] When the coordinates of a plurality of first detection points on the first coordinate system are known, the inspection and control unit can calculate the size of the first end surface through the coordinates of the plurality of first detection points.

[0056] When the coordinates of a plurality of second detection points on the second coordinate system are known, the inspection and control unit can calculate the size of the second end surface through the coordinates of the plurality of second detection points.

[0057] In some possible embodiments provided in the present application, a support leg is provided on a side of the operating table 1 facing away from the first detection part 2 , and a universal wheel is provided on an end of the support leg away from the operating table 1 .

[0058] By providing universal wheels, the detection device can be easily moved to different positions according to specific usage requirements, avoiding manual handling of the detection device, reducing manual labor and improving work efficiency.

[0059] There are at least four supporting legs, which are respectively arranged at four corners of the operating platform 1 .

[0060] Among them, the universal wheel is arranged at one end of the support leg away from the operating table 1, and the universal wheel is connected to the support leg. The connection method thereof can be bolt connection, etc., and this application does not make further limitations.

[0061] In some possible implementations provided in this application, see Figure 1 As shown, the detection device also includes: an image acquisition unit 4, which is movably arranged on the operating table 1 and electrically connected to the inspection and control unit. The image acquisition unit 4 is used to identify the number of the workpiece to be tested, and the number is suitable for reflecting the model of the workpiece to be tested.

[0062] By providing the image acquisition unit 4, the coding information on the workpiece to be tested can be identified quickly and accurately, thereby avoiding possible errors when manually entering the coding information, improving the accuracy of the test results, reducing labor costs, and improving test efficiency.

[0063] The image acquisition unit 4 may be a camera light source component. For example, the image acquisition unit 4 is a high-resolution camera.

[0064] Specifically, the image acquisition unit 4 is arranged on the operating table 1 and is electrically connected to the inspection and control unit. The detection end of the image acquisition unit 4 is arranged toward the operating table 1, and specifically, the camera head of the high-resolution camera is arranged toward the operating table 1, for obtaining images of the workpiece to be measured and the number of the workpiece to be measured, and transmitting the images to the inspection and control unit through a cable. The inspection and control unit has an image processing module that can identify the number of the workpiece to be measured, so as to enter the coding information of the workpiece to be measured.

[0065] The serial number of the workpiece to be measured includes the model number of the workpiece to be measured, the batch number of the workpiece to be measured, the year number of the workpiece to be measured, the production sequence number of the workpiece to be measured, etc.

[0066] The image acquisition unit 4 is movably arranged on the operating table 1 so that the distance between the detection end of the image acquisition unit 4 and the workpiece to be measured can be adjusted to facilitate focusing and improve the clarity of the picture taken by the image acquisition unit 4.

[0067] Specifically, a hydraulic rod is provided on the operating table 1, and a driving end of the hydraulic rod is connected to a camera mounting plate. The camera mounting plate is parallel to the operating table 1, and the image acquisition unit 4 is provided on the camera mounting plate. The hydraulic rod is used to drive the camera mounting plate to move, so as to drive the image acquisition unit 4 to approach or move away from the workpiece to be measured through the camera mounting plate.

[0068] In some possible implementations provided in this application, see Figure 1As shown, the detection device further includes: a weighing unit 5, which is disposed between the first detection unit 2 and the operating table 1 and is electrically connected to the detection unit, and is used to sense the weight information of the workpiece to be detected.

[0069] The weighing unit 5 may be a high-precision weighing sensor or the like.

[0070] Specifically, the weighing part 5 is arranged at the bottom of the first detection part 2 and is electrically connected to the detection and control part. After the workpiece to be measured is placed on the first detection part 2, the weighing part 5 can automatically monitor the weight of the workpiece to be measured and transmit its weight information to the detection and control part to realize the entry of the weight information of the workpiece to be measured.

[0071] In some possible implementations provided in this application, see Figure 1 As shown, the detection device further includes: a lifting part 6, which is disposed on the operating table 1, and the second detection part 3 is connected to the lifting part 6, and the lifting part 6 is suitable for driving the second detection part 3 to move in a direction perpendicular to the first detection part 2.

[0072] By providing the lifting part 6, the distance between the first detection part 2 and the second detection part 3 can be adjusted, so that the detection device can detect workpieces of different specifications, thereby increasing the application range of the detection device.

[0073] Among them, the lifting part 6 can be a linear module, a lifting component or a lifting component, etc., which can drive the second detection part 3 to move in a direction perpendicular to the first detection part 2, and this application does not make further limitations.

[0074] Specifically, in the embodiment of the present application, the lifting part 6 includes a lifting plate 61 and a guide rail 62, the guide rail 62 is arranged perpendicular to the operating table 1, the lifting plate 61 is slidably set on the guide rail 62, the second detection part 3 is connected to the lifting plate 61, and the lifting plate 61 is used to drive the second detection part 3 to slide on the guide rail 62 to adjust the distance between the first detection part 2 and the second detection part 3.

[0075] In some possible implementations provided in this application, see Figure 3 As shown, the first detection portion 2 includes a first bottom surface 21 and a first top surface 22, a plurality of first distance sensors 23 are arranged on the first bottom surface 21, a plurality of first openings 221 are opened on the first top surface 22 at positions relative to the plurality of first distance sensors 23, and a plurality of first top columns 24 are slidably arranged in the plurality of first openings 221 in a one-to-one corresponding manner.

[0076] The first detection unit 2 includes a first shell, and the first shell is used to carry a plurality of first distance sensors 23 . The first shell is provided to provide a stable setting position for the plurality of first distance sensors 23 .

[0077] Specifically, the first shell includes a first bottom surface 21 and a first top surface 22 that are oppositely arranged. The first bottom surface 21 is located on a side of the first top surface 22 away from the workpiece to be measured. A plurality of first distance sensors 23 are fixedly arranged on one side of the first bottom surface 21 opposite to the first top surface 22 .

[0078] Among them, a plurality of first openings 221 are provided on the first top surface 22, and the plurality of first openings 221 are arranged one by one corresponding to the plurality of first distance sensors 23 along a direction perpendicular to the operating table 1. As an embodiment, the first distance sensor 23 emits detection light to the first end surface of the workpiece to be measured through the first opening 221, and determines the distance according to the receiving time of the reflected light; as another embodiment, a first top column 24 is slidably arranged in the first opening 221, and the first distance sensor 23 emits detection light to the first top column 24, and determines the distance according to the receiving time of the reflected light. In the embodiment of the present application, the first top column 24 is slidably arranged in the first opening 221. It should be noted that when the first end surface of the workpiece to be measured is an inclined surface or a curved surface, the first distance sensor 23 may not receive the reflected light when directly emitting detection light to the first end surface of the workpiece to be measured, resulting in the inability of the inspection and control unit to generate a point cloud map of the first end surface of the workpiece to be measured. In the present application, the end of the first top column 24 close to the first distance sensor 23 is a planar structure, which can ensure that the first distance sensor 23 can receive the reflected light.

[0079] Specifically, after the workpiece is placed on the first detection part 2, the first end surface of the workpiece contacts with the plurality of first top pillars 24, and the positions of the plurality of first top pillars 24 change under the action of the self-weight of the workpiece to characterize the shape of the first end surface of the workpiece.

[0080] It is understandable that there is friction damping between the outer wall of the first top column 24 and the inner wall of the first opening 221 to overcome the gravity of the first top column 24 , that is, the position of the first top column 24 remains unchanged under the action of its own weight.

[0081] The first top column 24 may be cylindrical, and the diameter of the first top column 24 is 5-10 mm.

[0082] In some possible implementations provided in this application, see Figure 3 As shown, the second detection portion 3 includes a second bottom surface 31 and a second top surface 32, a plurality of second distance sensors 33 are arranged on the second bottom surface 31, a plurality of second openings 321 are opened on the second top surface 32 at positions relative to the plurality of second distance sensors 33, and a plurality of second top columns 34 are slidably arranged in the plurality of second openings 321 in a one-to-one corresponding manner.

[0083] The second detection unit 3 includes a second shell, and the second shell is used to carry a plurality of second distance sensors 33 . The second shell is provided to provide a stable setting position for the plurality of second distance sensors 33 .

[0084] Specifically, the second shell includes a second bottom surface 31 and a second top surface 32 which are arranged opposite to each other. The second bottom surface 31 is located on a side of the second top surface 32 away from the workpiece to be measured. A plurality of second distance sensors 33 are fixedly arranged on a side of the second bottom surface 31 opposite to the second top surface 32 .

[0085] Among them, a plurality of second openings 321 are provided on the second top surface 32, and the plurality of second openings 321 are arranged one by one corresponding to the plurality of second distance sensors 33 along a direction perpendicular to the operating table 1. As an embodiment, the second distance sensor 33 emits detection light to the second end surface of the workpiece to be measured through the second opening 321, and determines the distance according to the receiving time of the reflected light; as another embodiment, a second top column 34 is slidably arranged in the second opening 321, and the second distance sensor 33 emits detection light to the second top column 34, and determines the distance according to the receiving time of the reflected light. In the embodiment of the present application, a second top column 34 is slidably arranged in the second opening 321. It should be noted that when the second end surface of the workpiece to be measured is an inclined surface or a curved surface, the second distance sensor 33 may not receive the reflected light when directly emitting detection light to the second end surface of the workpiece to be measured, resulting in the inability of the inspection and control unit to generate a point cloud map of the second end surface of the workpiece to be measured. In the present application, the end of the second top column 34 close to the second distance sensor 33 is a planar structure, which can ensure that the second distance sensor 33 can receive the reflected light.

[0086] Specifically, after the workpiece to be measured is placed on the first detection part 2, the second detection part 3 is pressed on the workpiece to be measured, and the second end face of the workpiece to be measured contacts with a plurality of second top pillars 34. The positions of the plurality of second top pillars 34 change under the action of the self-weight of the second detection part 3 to characterize the shape of the second end face of the workpiece to be measured.

[0087] It is understandable that there is friction damping between the outer wall of the second top column 34 and the inner wall of the second opening 321 to overcome the gravity of the second top column 34 , that is, the position of the second top column 34 remains unchanged under the action of its own weight.

[0088] The second top column 34 may be cylindrical, and the diameter of the second top column 34 is 5-10 mm.

[0089] In some possible implementations provided in this application, see Figure 3 As shown, the first detection part 2 further includes a first detection column 27 , which is disposed at one end of the first top column 24 close to the first distance sensor 23 , and is used to reflect the detection light emitted by the first distance sensor 23 .

[0090] The first detection column 27 may be made of retroreflective material.

[0091] Specifically, the first detection column 27 is disposed at one end of the first top column 24 close to the first distance sensor 23 , and can increase the intensity of the reflected light received by the first distance sensor 23 .

[0092] In some possible implementations provided in this application, see Figure 3 As shown, the second detection part 3 further includes a second detection column 37 , which is disposed at one end of the second top column 34 close to the second distance sensor 33 , and is used to reflect the detection light emitted by the second distance sensor 33 .

[0093] The second detection column 37 may be made of retroreflective material.

[0094] Specifically, the second detection column 37 is disposed at one end of the second top column 34 close to the second distance sensor 33 , and can increase the intensity of the reflected light received by the second distance sensor 33 .

[0095] In some possible implementations provided in this application, see Figure 3 As shown, the first detection part 2 further includes a first elastic member 25, which is disposed between the first top column 24 and the first distance sensor 23, wherein a first end of the first elastic member 25 is connected to the first top column 24, and a second end of the first elastic member 25 is relatively fixed to the first bottom surface 21;

[0096] By providing the first elastic member 25 so that the first top column 24 has a tendency to move away from the first distance sensor 23, the first top column 24 can be prevented from moving close to the first distance sensor 23 under the action of its own weight, thereby improving the accuracy of the first end surface detection result of the workpiece to be measured.

[0097] Among them, the first elastic member 25 can be a tension spring, a torsion spring or an elastic sheet, etc., and this application does not make further limitations.

[0098] Specifically, the first elastic member 25 is fixedly arranged on one side of the first bottom surface 21 relative to the first top surface 22 and connected to the first top column 24. After the workpiece to be measured is placed on the first detection part 2, the first elastic member 25 is in a compressed state so that the first top column 24 has a tendency to move away from the first distance sensor 23, so that a plurality of first top columns 24 can accurately characterize the shape of the first end surface of the workpiece to be measured.

[0099] There are a plurality of first elastic members 25 , and the plurality of first elastic members 25 are disposed in one-to-one correspondence with the plurality of first top pillars 24 .

[0100] In some possible implementations provided in this application, see Figure 3As shown, the second detection unit 3 also includes a second elastic member 35, which is arranged between the second top column 34 and the second distance sensor 33, the first end of the second elastic member 35 is connected to the second top column 34, and the second end of the second elastic member 35 is relatively fixed to the second bottom surface 31.

[0101] By providing the second elastic member 35 so that the second top column 34 has a tendency to move away from the second distance sensor 33, the second top column 34 can be prevented from moving close to the second distance sensor 33 under the action of the second shell's own weight, thereby improving the accuracy of the second end face detection result of the workpiece to be measured.

[0102] The second elastic member 35 may be a tension spring, a torsion spring or an elastic sheet, etc., and this application does not make any further limitation.

[0103] Specifically, the second elastic member 35 is fixedly arranged on one side of the second bottom surface 31 relative to the second top surface 32 and connected to the second top column 34. After the second detection part 3 is pressed on the workpiece to be measured, the second elastic member 35 is in a compressed state so that the second top column 34 has a tendency to move away from the second distance sensor 33, so that a plurality of second top columns 34 can accurately characterize the shape of the second end surface of the workpiece to be measured.

[0104] There are a plurality of second elastic members 35 , and the plurality of second elastic members 35 are arranged in one-to-one correspondence with the plurality of second top pillars 34 .

[0105] In some possible implementations provided in this application, see Figure 3 As shown, the first detection part 2 also includes a first flexible sleeve 26 , which is sleeved on the first elastic member 25 , a first end of the first flexible sleeve 26 is relatively fixed to the first top column 24 , and a second end of the first flexible sleeve 26 is relatively fixed to the first bottom surface 21 .

[0106] By disposing the first flexible sleeve 26 outside the first elastic member 25, a propagation channel for the detection light and the reflected light of the first distance sensor 23 can be formed to prevent the ambient light from interfering with the first distance sensor 23, thereby improving the accuracy of the detection result of the first end face of the workpiece to be measured.

[0107] The first flexible sleeve 26 is a hollow structure, and a propagation channel for the detection light and the reflected light of the first distance sensor 23 can be formed inside the first flexible sleeve 26 .

[0108] Specifically, the first flexible sleeve 26 is sleeved on the first elastic member 25 , a first end of the first flexible sleeve 26 is relatively fixed to the first top column 24 , and a second end of the first flexible sleeve 26 is relatively fixed to the first bottom surface 21 .

[0109] The surface of the first flexible sleeve 26 has annular wrinkles, so that the first flexible sleeve 26 can be shortened when the position of the first top column 24 changes, thereby preventing the first flexible sleeve 26 from bending and blocking the transmission of the detection light and reflected light of the first distance sensor 23.

[0110] In some possible implementations provided in this application, see Figure 3 As shown, the second detection part 3 also includes a second flexible sleeve 36 , which is sleeved on the second elastic member 35 , a first end of the second flexible sleeve 36 is relatively fixed to the second top column 34 , and a second end of the second flexible sleeve 36 is relatively fixed to the second bottom surface 31 .

[0111] By disposing the second flexible sleeve 36 outside the second elastic member 35, a propagation channel for the detection light and the reflected light of the second distance sensor 33 can be formed to prevent the ambient light from interfering with the second distance sensor 33, thereby improving the accuracy of the detection result of the second end face of the workpiece to be measured.

[0112] The second flexible sleeve 36 is a hollow structure, and a propagation channel for the detection light and the reflected light of the second distance sensor 33 can be formed inside the second flexible sleeve 36 .

[0113] Specifically, the second flexible sleeve 36 is sleeved on the second elastic member 35 , a first end of the second flexible sleeve 36 is relatively fixed to the second top column 34 , and a second end of the second flexible sleeve 36 is relatively fixed to the second bottom surface 31 .

[0114] The surface of the second flexible sleeve 36 has annular wrinkles, so that the second flexible sleeve 36 can be shortened when the position of the second top column 34 changes, thereby preventing the second flexible sleeve 36 from bending and blocking the transmission of the detection light and reflected light of the second distance sensor 33.

[0115] The embodiment of the utility model provides a detection device, wherein the detection device determines the shape and size of the end face of the workpiece to be measured by the difference of the distance information sensed by the distance sensors at different positions, thereby realizing the detection of the outer dimensions of the workpiece to be measured. In the prior art, it is difficult to accurately detect the shape and size of the end face of the workpiece to be measured with poor flatness by manual measurement. Compared with the prior art, in the present application document, the distance sensor senses the distance information from the end face of the workpiece to be measured. Since the distances of each point on the end face of the workpiece to be measured with poor flatness are different from the distance sensor, the shape and size of the end face of the workpiece to be measured are determined by the difference of the distance information sensed by the distance sensors at different positions, thereby realizing the detection of the outer dimensions of the workpiece to be measured, and improving the accuracy of the detection result. In addition, the detection device can quickly and accurately identify the coded information on the workpiece to be measured by setting the image acquisition unit 4, thereby reducing the labor cost and improving the detection efficiency. At the same time, it can avoid the errors that may occur when manually entering the coded information, thereby improving the accuracy of the detection result. Finally, the detection device can automatically monitor and record the weight of the workpiece to be measured by setting the weighing unit 5.

[0116] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0117] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A detection device, characterized in that: include: Operating table (1); A first detection unit (2), the first detection unit (2) being arranged on the operating table (1) and used for receiving a workpiece to be measured, the first detection unit (2) having a plurality of first distance sensors (23), the plurality of first distance sensors (23) being used for sensing distance information from a first end face of the workpiece to be measured; a second detection part (3), the second detection part (3) being arranged on a side of the first detection part (2) away from the operating table (1) and being arranged opposite to the first detection part (2), the second detection part (3) having a plurality of second distance sensors (33), the plurality of second distance sensors (33) being used to sense distance information from a second end face of the workpiece to be measured; A control unit, wherein the control unit stores coordinate information of a plurality of the first distance sensors (23) and a plurality of the second distance sensors (33), the control unit is electrically connected to the first detection unit (2) and the second detection unit (3), respectively, and the control unit is used to receive distance information transmitted by the plurality of the first distance sensors (23) and the plurality of the second distance sensors (33); Wherein, a support leg is arranged on a side of the operating table (1) away from the first detection part (2), and a universal wheel is arranged on an end of the support leg away from the operating table (1).

2. The detection device according to claim 1, characterized in that: The detection device also includes: An image acquisition unit (4) is movably arranged on the operating table (1) and is electrically connected to the inspection unit. The image acquisition unit (4) is used to identify the serial number of the workpiece to be measured, and the serial number is suitable for reflecting the model of the workpiece to be measured.

3. The detection device according to claim 1, characterized in that: The detection device also includes: A weighing unit (5), the weighing unit (5) is arranged between the first detection unit (2) and the operating table (1) and is electrically connected to the inspection unit, and the weighing unit (5) is used to sense the weight information of the workpiece to be measured.

4. The detection device according to claim 1, characterized in that: The detection device also includes: A lifting part (6), wherein the lifting part (6) is arranged on the operating table (1), the second detection part (3) is connected to the lifting part (6), and the lifting part (6) is suitable for driving the second detection part (3) to move in a direction perpendicular to the first detection part (2).

5. The detection device according to claim 1, characterized in that: The first detection portion (2) comprises a first bottom surface (21) and a first top surface (22); a plurality of the first distance sensors (23) are arranged on the first bottom surface (21); a plurality of first openings (221) are provided on the first top surface (22) at positions corresponding to the plurality of the first distance sensors (23); a plurality of first top columns (24) are slidably arranged in the plurality of the first openings (221) in a one-to-one correspondence; The second detection portion (3) comprises a second bottom surface (31) and a second top surface (32); a plurality of second distance sensors (33) are arranged on the second bottom surface (31); a plurality of second openings (321) are provided on the second top surface (32) at positions corresponding to the plurality of second distance sensors (33); and a plurality of second top columns (34) are slidably arranged in the plurality of second openings (321) in a one-to-one correspondence.

6. The detection device according to claim 5, characterized in that: The first detection part (2) further comprises a first elastic member (25), the first elastic member (25) being arranged between the first top column (24) and the first distance sensor (23), the first end of the first elastic member (25) being connected to the first top column (24), and the second end of the first elastic member (25) being relatively fixed to the first bottom surface (21); The second detection part (3) further comprises a second elastic member (35), wherein the second elastic member (35) is arranged between the second top column (34) and the second distance sensor (33), wherein a first end of the second elastic member (35) is connected to the second top column (34), and a second end of the second elastic member (35) is relatively fixed to the second bottom surface (31).

7. The detection device according to claim 6, characterized in that: The first detection part (2) further comprises a first flexible sleeve (26), the first flexible sleeve (26) being sleeved on the first elastic member (25), the first end of the first flexible sleeve (26) being relatively fixed to the first top column (24), and the second end of the first flexible sleeve (26) being relatively fixed to the first bottom surface (21); The second detection portion (3) further comprises a second flexible sleeve (36), the second flexible sleeve (36) being sleeved on the second elastic member (35), the first end of the second flexible sleeve (36) being relatively fixed to the second top column (34), and the second end of the second flexible sleeve (36) being relatively fixed to the second bottom surface (31); Wherein, the surfaces of the first flexible sleeve (26) and the second flexible sleeve (36) both have annular folds.

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