Testing equipment

Abstract

The present application relates to the technical field of detection equipment, and in particular to a detection equipment. In the process of detecting a piece to be tested, the piece to be tested is loaded through a fixture device, first data information of the piece to be tested is obtained through a first detection sensor, second data information of the piece to be tested is obtained through a second detection sensor, and the detection result is determined according to the first data information and the second data information. The first detection sensor is driven close to or away from the piece to be tested by a first moving mechanism, and the second detection sensor is driven close to or away from the piece to be tested by a second moving mechanism. When the thickness of the piece to be tested changes, the distance between the first detection sensor and the second detection sensor can be adjusted with the change in the thickness of the piece to be tested, so that the detection equipment can adapt to the detection of pieces to be tested of different sizes and models, and can also adapt to the detection of different parts of the piece to be tested. In this way, the adaptability of the detection equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to a detection equipment. Background Art

[0002] As an important part of the vehicle, the performance index of the brake disc is related to the safety of the vehicle. In particular, the flatness and thickness of the brake disc are important indicators for judging the performance of the brake disc. Poor flatness will lead to uneven wear on the surface of the brake disc, affecting the braking performance, and in severe cases, causing brake failure. If the thickness of the brake disc does not meet the expected requirements, the hardness and rigidity of the brake disc surface will decrease, and the disc will explode due to excessive impact force during emergency braking, seriously affecting driving and road safety. Therefore, it is necessary to test the thickness of the brake disc to ensure that the thickness of the brake disc meets the expected requirements and ensure driving safety.

[0003] At present, in the process of testing the size indicators of brake discs, the detection sensors are usually fixed, which makes it difficult to adapt to the detection of different parts of brake discs or different models of brake discs, resulting in the adaptability of the detection equipment being difficult to meet the expected requirements.

[0004] It can be seen that how to improve the adaptability of detection equipment is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present application provides a detection device, which aims to solve the technical problem of how to improve the adaptability of the detection device in the prior art.

[0006] The present application provides a detection device, comprising:

[0007] A fixture device, wherein the fixture device is used to load the workpiece to be tested;

[0008] A first detection device, the first detection device comprising a first detection sensor and a first moving mechanism, the first moving mechanism being used to drive the first detection sensor to approach or move away from the object to be tested during the detection process, and the first detection sensor being used to obtain first data information of the object to be tested from one side of the object to be tested;

[0009] A second detection device, the second detection device comprising a second detection sensor and a second moving mechanism, the second moving mechanism being used to drive the second detection sensor to approach or move away from the object to be tested during the detection process, and the second detection sensor being used to obtain second data information of the object to be tested from a side of the object to be tested away from the first detection device;

[0010] Wherein, the detection result is determined according to the first data information and the second data information.

[0011] Optionally, the fixture device comprises:

[0012] A limiting mechanism, the limiting mechanism is used to limit the position of the test piece;

[0013] A positioning mechanism is used to provide a reference to the positioning features on the test piece so as to position the test piece.

[0014] Optionally, the limiting mechanism includes:

[0015] A table plate, wherein the table plate is provided with a limiting hole, and the side wall profile of the limiting hole is adapted to the profile of the workpiece to be tested;

[0016] The first limiting members are at least three in number and are dispersedly arranged along the sidewall profile of the limiting hole. The first limiting members are used to limit the piece to be tested.

[0017] Optionally, the limiting mechanism further includes:

[0018] A limiting ring, wherein the outer contour of the limiting ring is adapted to the side wall contour of the limiting hole, and the inner contour of the limiting ring is adapted to the contour of the tested piece after the modification;

[0019] A second limiting member, the number of which is at least three, the second limiting members are dispersedly arranged along the inner contour, and the second limiting members connect the table plate and the limiting ring;

[0020] Wherein, the second limiting member is provided with a limiting portion, the limiting portion at least extends to the range of the inner contour, and the limiting portion is used to limit the position of the test piece after the modification.

[0021] Optionally, the positioning mechanism includes:

[0022] A light emitting member, the light emitting member being used to emit visible light;

[0023] A mounting bracket, the mounting bracket is used to fix the light emitting element;

[0024] Wherein, during the detection process of the piece to be tested, the light emitting element irradiates the visible light to the piece to be tested. When the visible light irradiates the positioning feature, it indicates that the positioning of the piece to be tested is in line with expectations.

[0025] Optionally, the mounting bracket comprises:

[0026] A support member, the support member is used to support the light output member;

[0027] A mounting member, the mounting member is mounted on the bracket member, and the light emitting member is mounted on the mounting member;

[0028] Wherein, the relative position and / or relative angle between the mounting member and the bracket member is adjusted to adjust the irradiation position of the visible light.

[0029] Optionally, the first detection device further includes a third detection sensor, and the third detection sensor is used to obtain image information of the object to be tested.

[0030] Optionally, the first data information includes first distance data, and the second data information includes second distance data.

[0031] Optionally, the detection device further includes:

[0032] A first displacement device, the first displacement device is used to drive the fixture device to move along a first direction;

[0033] A second displacement device, the second displacement device is used to drive the fixture device to move along a second direction;

[0034] The first direction intersects with the second direction, and a plane where the first direction and the second direction are located is perpendicular to a detection direction of the first detection sensor.

[0035] Optionally, the fixture device further comprises a detection component, and the detection component is used to detect whether the fixture device is loaded with the workpiece to be tested.

[0036] The beneficial effects achieved by the present application are: in the process of testing the workpiece to be tested, the workpiece to be tested is loaded through the fixture device, the first data information of the workpiece to be tested is obtained through the first detection sensor, the second data information of the workpiece to be tested is obtained through the second detection sensor, and the detection result is determined according to the first data information and the second data information. The first detection sensor is driven close to or away from the workpiece to be tested by the first moving mechanism, and the second detection sensor is driven close to or away from the workpiece to be tested by the second moving mechanism. When the thickness of the workpiece to be tested changes, the distance between the first detection sensor and the second detection sensor can be adjusted with the change in the thickness of the workpiece to be tested, thereby enabling the detection equipment to adapt to the detection of workpieces of different sizes and models, and also enabling the detection equipment to adapt to the detection of different parts of the workpiece to be tested. In this way, the adaptability of the detection equipment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of the three-dimensional structure of a detection device in an embodiment of the present invention;

[0038] Figure 2 is a schematic diagram of the explosion structure of the detection device in an embodiment of the present invention;

[0039] Figure 3 is a schematic diagram of the three-dimensional structure of a first detection device in an embodiment of the present invention;

[0040] Figure 4 is a schematic diagram of the three-dimensional structure of the second detection device in an embodiment of the present invention;

[0041] Figure 5 is a schematic diagram of a three-dimensional structure of a fixture device loaded with a workpiece to be tested in an embodiment of the present invention;

[0042] Figure 6 is a schematic diagram of an explosion structure in which a fixture device is loaded with a workpiece to be tested in an embodiment of the present invention;

[0043] Figure 7 is a schematic diagram of the three-dimensional structure of a fixture device loaded with a changed workpiece to be tested in an embodiment of the present invention;

[0044] Figure 8 Schematic diagram of the exploded structure of the fixture device loaded with the changed test piece in the embodiment of the present invention.

[0045] Main unit symbol description:

[0046] 100. Testing equipment; 10. Fixture device; 11. Limiting mechanism; 111. Table; 112. Limiting hole; 113. Side wall profile; 114. First limiting member; 115. Limiting ring; 116. Outer profile; 117. Inner profile; 118. Second limiting member; 119. Limiting part; 12. Positioning mechanism; 121. Light emitting member; 122. Visible light; 123. Mounting bracket; 124. Bracket member; 125. Mounting member; 13. Testing assembly; 20. First testing device; 21. First testing sensor; 22. First moving mechanism; 23. Third testing sensor; 30. Second testing device; 31. Second testing sensor; 32. Second moving mechanism; 40. First displacement device; 50. Second displacement device; 60. Measured object; 61. Positioning feature; 70. Measured object after modification. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar units or units with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by terms such as "length", "width", "up", "down", "left", "right", "horizontal", "top" and "bottom" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] 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 invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, an electrical connection, or can communicate with each other; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two units or the interaction relationship between two units. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the examples of various specific processes and materials provided by the present invention, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0053] See also Figures 1 to 4 In some embodiments of the present application, a detection device 100 proposed in the present application includes: a fixture device 10, a first detection device 20 and a second detection device 30. The first detection device 20 includes a first detection sensor 21 and a first moving mechanism 22. The second detection device 30 includes a second detection sensor 31 and a second moving mechanism 32.

[0054] The fixture device 10 is used to load the test piece 60. The first moving mechanism 22 is used to drive the first detection sensor 21 to approach or move away from the test piece 60 during the detection process, and the first detection sensor 21 is used to obtain the first data information of the test piece 60 from one side of the test piece 60. The second moving mechanism 32 is used to drive the second detection sensor 31 to approach or move away from the test piece 60 during the detection process, and the second detection sensor 31 is used to obtain the second data information of the test piece 60 from the side of the test piece 60 away from the first detection device 20. The detection result is determined according to the first data information and the second data information.

[0055] During the process of testing the piece to be tested 60, the piece to be tested 60 is loaded through the fixture device 10, the first data information of the piece to be tested 60 is obtained through the first detection sensor 21, the second data information of the piece to be tested 60 is obtained through the second detection sensor 31, and the detection result is determined according to the first data information and the second data information. The first detection sensor 21 is driven to approach or move away from the piece to be tested 60 by the first moving mechanism 22, and the second detection sensor 31 is driven to approach or move away from the piece to be tested 60 by the second moving mechanism 32. When the thickness of the piece to be tested 60 changes, the distance between the first detection sensor 21 and the second detection sensor 31 can be adjusted with the change of the thickness of the piece to be tested 60, so that the detection device 100 can adapt to the detection of pieces to be tested 60 of different sizes and models, and can also adapt to the detection of different parts of the piece to be tested 60. In this way, the adaptability of the detection device 100 is improved.

[0056] In some embodiments of the present application, the first detection sensor 21 includes a first distance sensor, and the second detection sensor 31 includes a second distance sensor.

[0057] In some embodiments of the present application, the first data information includes first distance data, and the second data information includes second distance data.

[0058] The first distance data information on one side of the test piece 60 is obtained by the first distance sensor, and the second distance data information on the other side of the test piece 60 is obtained by the second distance sensor. The distance between the first distance sensor and the second distance sensor is known, so let the distance between the first distance sensor and the second distance sensor be D, the first distance data information be D1, the second distance data information be D2, and the thickness of the test piece 60 be H, then H=D-D1-D2. In this way, the detection result is determined according to the first data information and the second data information, wherein the first data information is the first distance data information, the second data information is the second distance data information, and the detection result is the thickness of the test piece 60.

[0059] In the process of detecting the thickness of different parts of the same test piece 60, if the thickness of different parts of the test piece 60 is greatly different, or the detection distance is greatly different, it is necessary to move the test piece 60 in the detection direction of the first detection sensor 21 and the second detection sensor 31, or move the first detection sensor 21 and the second detection sensor 31.

[0060] Since the test piece 60 is loaded on the fixture device 10, it is difficult to move the test piece 60, and if the test piece 60 is moved, the detection device 100 cannot adapt to the detection of different thicknesses. Therefore, the adaptability of the detection device 100 can be improved by moving the first detection sensor 21 and the second detection sensor 31.

[0061] When detecting a portion of the test piece 60 with a larger thickness, the first detection sensor 21 can be driven away from the test piece 60 by the first moving mechanism 22, and the second detection sensor 31 can be driven away from the test piece 60 by the second moving mechanism 32, thereby increasing the distance between the first detection sensor 21 and the second detection sensor 31, so that the test piece 60 can enter between the first detection sensor 21 and the second detection sensor 31, and the two side surfaces of the test piece 60 are respectively within the detection range of the first detection sensor 21 and the second detection sensor 31, so that the detection equipment 100 can adapt to the detection of a portion of the test piece 60 with a larger thickness.

[0062] When detecting a portion of the test piece 60 with a smaller thickness, the first detection sensor 21 can be driven close to the test piece 60 by the first moving mechanism 22, and the second detection sensor 31 can be driven close to the test piece 60 by the second moving mechanism 32, thereby reducing the distance between the first detection sensor 21 and the second detection sensor 31, so that the two side surfaces of the test piece 60 are respectively within the detection range of the first detection sensor 21 and the second detection sensor 31, so that the detection device 100 can adapt to the detection of a portion of the test piece 60 with a smaller thickness.

[0063] After detecting the part of the test piece 60 close to the first detection sensor 21, when detecting the part close to the second detection sensor 31, the first moving mechanism 22 can drive the first detection sensor 21 to move toward the second detection sensor 31, and the second moving mechanism 32 can drive the second detection sensor 31 to move away from the test piece 60, thereby causing the space between the first detection sensor 21 and the second detection sensor 31 to move toward the second detection sensor 31, so that the two side surfaces of the test part of the test piece 60 are within the detection range of the first detection sensor 21 and the second detection sensor 31, so that the detection equipment 100 can adapt to the detection of different parts of the test piece 60.

[0064] When detecting the flatness of the test piece 60 , the first detection sensor 21 or the second detection sensor 31 can detect the distance parameters of multiple points on one side of the test piece 60 , and then simulate the simulated surface of one side of the test piece 60 according to the distance parameter information, and then evaluate the flatness of the test piece 60 according to the simulated surface.

[0065] When detecting the parallelism of the two surfaces of the test piece 60, the first detection sensor 21 and the second detection sensor 31 can respectively detect the distance parameters of multiple points on the two surfaces of the test piece 60, and then simulate the virtual surfaces of the two surfaces of the test piece 60 according to the distance parameters of the two surfaces. The parallelism of the test piece 60 can be evaluated by evaluating the parallelism of the two virtual surfaces.

[0066] In some embodiments of the present application, the first moving mechanism 22 and the second moving mechanism 32 can be driven by an electric screw to respectively drive the first detection sensor 21 and the second detection sensor 31 to move under the guidance of the linear slide assembly, and a grating ruler can also be provided to detect the moving distance of the first detection sensor 21 and the second detection sensor 31. Among them, the working principles of the electric screw, the linear slide assembly and the grating ruler are conventional technical means in the field, so they are not described here.

[0067] In some embodiments of the present application, the fixture device 10 includes: a limiting mechanism 11 and a positioning mechanism 12. The limiting mechanism 11 is used to limit the position of the workpiece 60. The positioning mechanism 12 is used to provide a reference to the positioning feature 61 on the workpiece 60 to position the workpiece 60.

[0068] In the process of loading the test piece 60 through the fixture device 10, the test piece 60 is limited by the limiting mechanism 11, so as to avoid displacement of the test piece 60 during the detection process, thereby ensuring the reliability and accuracy of the detection result. In the process of positioning the test piece 60, the test piece 60 can be moved or rotated, so that the positioning feature 61 on the test piece 60 is moved to the specified position with reference to the positioning mechanism 12, thereby completing the positioning of the test piece 60. By positioning the test piece 60, the test piece 60 is loaded on the fixture device 10 in the expected orientation. When different test pieces 60 of the same batch are detected, the same parts of different test pieces 60 of the same batch can be detected by the detection device 100 by positioning the test piece 60, thereby improving the repeatability and reliability of the detection results of the detection device 100.

[0069] It is understandable that if different parts of different test pieces 60 of the same batch are tested, the differences in the test results will increase due to the differences in the test parts, and the test results of different parts are difficult to verify or refer to each other, thereby reducing the reliability of the test results. However, by testing the same parts of different test pieces 60 of the same batch, since the test parts are the same, the test results are only affected by the production quality, so the differences in the test results are small, and they can be verified or referred to each other, thereby ensuring the repeatability and reliability of the test results.

[0070] See also Figure 1 to Figure 2 and Figures 5 and 6 In some embodiments of the present application, the limiting mechanism 11 includes: a platform 111 and a first limiting member 114. The platform 111 is provided with a limiting hole 112, and the side wall profile 113 of the limiting hole 112 is adapted to the profile of the workpiece 60 to be tested. The number of the first limiting members 114 is at least three, and the first limiting members 114 are dispersedly arranged along the side wall profile 113, and the first limiting members 114 are used to limit the workpiece 60 to be tested.

[0071] When the limiting mechanism 11 limits the position of the piece to be tested 60, the piece to be tested 60 is placed into the limiting hole 112, so that the piece to be tested 60 is exposed from the limiting hole 112, thereby preventing the table 111 from blocking the piece to be tested 60, so that the first detection sensor 21 and the second detection sensor 31 can effectively detect the piece to be tested 60 and obtain valid detection data.

[0072] After the piece to be tested 60 is placed into the limiting hole 112, the piece to be tested 60 is lifted by the first limiting member 114, and the piece to be tested 60 is limited in at least three directions by at least three first limiting members 114, thereby limiting the degree of freedom of the piece to be tested 60 and avoiding displacement of the piece to be tested 60, thereby improving the reliability of the detection result.

[0073] In some embodiments of the present application, the first limiting member 114 includes a lifting portion and a limiting surface. At least the lifting portion of the first limiting member 114 extends into the range of the limiting hole 112, and the limiting surface is displaced from the side of the lifting portion.

[0074] After the piece to be tested 60 is placed within the range of the limiting hole 112, the piece to be tested 60 is blocked by the lifting portion of the first limiting member 114, and then the lifting portion lifts the piece to be tested 60. After the piece to be tested 60 is lifted by the first limiting member 114, the limiting surface located on the side of the lifting portion limits the piece to be tested 60, thereby preventing the piece to be tested 60 from being displaced, thereby ensuring the reliability of the detection result of the detection device 100.

[0075] See also Figure 1 to Figure 2 and Figures 7 and 8 In some embodiments of the present application, the limiting mechanism 11 further includes: a limiting ring 115 and a second limiting member 118. The outer contour 116 of the limiting ring 115 is adapted to the side wall contour 113, and the inner contour 117 of the limiting ring 115 is adapted to the contour of the part to be tested 70 after the remodeling. The number of the second limiting members 118 is at least three, and the second limiting members 118 are dispersedly arranged along the inner contour 117, and the second limiting members 118 connect the table 111 and the limiting ring 115. Among them, the second limiting member 118 is provided with a limiting portion 119, and the limiting portion 119 extends at least to the range of the inner contour 117, and the limiting portion 119 is used to limit the part to be tested 70 after the remodeling.

[0076] After the test piece 60 is reshaped, the contour size of the reshaped test piece 70 is reduced, and it is difficult to effectively limit the reshaped test piece 70 through the first limiter 114. A limit ring 115 can be inserted into the limit hole 112, and the limit ring 115 is connected to the table 111 through at least three second limiters 118, so as to improve the reliability of the connection between the limit ring 115 and the table 111. All the second limiters 118 are connected to the limit ring 115, so that all the second limiters 118 are supported by the limit ring 115, and the structural strength of the second limiters 118 is improved. In the process of limiting the reshaped test piece 70, the reshaped test piece 70 is placed within the inner contour 117 of the limit ring 115, and the reshaped test piece 70 is limited and lifted by the second limiter 118, so as to avoid displacement of the reshaped test piece 70 during the detection process, and improve the reliability of the detection result.

[0077] Since the limiting ring 115 is located within the limiting hole 112 , the limited ring 115 and the second limiting member 118 can limit the reshaped test piece 70 , so that the detection device 100 can adapt to the detection of the reshaped test piece 70 with a smaller size.

[0078] In some embodiments of the present application, the positioning mechanism 12 includes: a light emitting member 121 and a mounting bracket 123. The light emitting member 121 is used to emit visible light 122. The mounting bracket 123 is used to fix the light emitting member 121. In the process of detecting the object to be tested 60, the light emitting member 121 irradiates the visible light 122 to the object to be tested 60. When the visible light 122 irradiates the positioning feature 61, it indicates that the positioning of the object to be tested 60 is in line with expectations.

[0079] After the piece to be tested 60 is placed into the fixture device 10, the position of the piece to be tested 60 is limited by the limiting mechanism 11 to prevent the piece to be tested 60 from being displaced in the fixture device 10. The light emitting member 121 irradiates the piece to be tested 60 with visible light 122, thereby forming a light spot on the surface of the piece to be tested 60. The piece to be tested 60 is rotated, so that the positioning feature 61 on the piece to be tested 60 is close to the light spot formed on the surface of the piece to be tested 60 by the visible light 122 irradiated by the light emitting member 121, until the positioning feature 61 coincides with the light spot. If the positioning feature 61 coincides with the light spot, it means that the positioning of the piece to be tested 60 meets the expected requirements. The piece to be tested 60 is positioned by forming a light spot on the surface of the piece to be tested 60 by the light emitting member 121, and the light spot is clearly visible and will not cause damage to the piece to be tested 60. When the test piece 60 is rotated, since the light emitting element 121 does not move, the light spot always stays at the reference position and does not move with the test piece 60, thereby ensuring the repeatability of the positions of different test pieces 60 of the same batch after positioning, thereby improving the reliability and repeatability of the detection results of the detection equipment 100.

[0080] In some embodiments of the present application, the positioning feature 61 of the test piece 60 may include a feature with a fixed position, such as a hole, a notch, a groove, a mark or a pattern on the test piece 60 .

[0081] In some embodiments of the present application, the mounting bracket 123 includes: a bracket member 124 and a mounting member 125. The bracket member 124 is used to support the light emitting member 121. The mounting member 125 is mounted on the bracket member 124, and the light emitting member 121 is mounted on the mounting member 125. The relative position and / or relative angle between the mounting member 125 and the bracket member 124 are adjusted to adjust the irradiation position of the visible light 122.

[0082] When the part to be tested 60 is changed, the position of the positioning feature 61 on the part to be tested 60 changes, and the relative position and / or relative angle between the mounting member 125 and the bracket member 124 can be adjusted, thereby adjusting the irradiation position of the visible light 122, so that the position of the light spot formed by the visible light 122 on the part to be tested 60 changes, so that the light spot formed by the visible light 122 on the part to be tested 60 can coincide with the positioning feature 61 on the part to be tested 70 after the change of model, thereby enabling the positioning mechanism 12 to adapt to the positioning of parts to be tested 60 of different models.

[0083] See also Figures 1 to 3In some embodiments of the present application, the first detection device 20 further includes a third detection sensor 23, and the third detection sensor 23 is used to obtain image information of the test piece 60. The third detection sensor 23 includes a camera detection module.

[0084] After the test piece 60 is fixed and positioned, the image information of the test piece 60 is obtained by the third detection sensor 23, and then the center position of the test piece 60 and the position of the positioning feature 61 are determined. Then, a coordinate system about the test piece 60 is formed by the center position of the test piece 60 and the position of the positioning feature 61, wherein the line passing through the center position of the test piece 60 and the position of the positioning feature 61 can be used as the X-axis of this coordinate system, the center position of the test piece 60 can be used as the origin of this coordinate system, and the line passing through the center position of the test piece 60 and perpendicular to the X-axis can be used as the Y-axis of this coordinate system. By establishing a coordinate system about the test piece 60, the coordinate information and distance information of the detection point can be obtained, and then the thickness, flatness or parallelism of the test piece 60 can be calculated by the obtained coordinate information and distance information, so as to facilitate the detection device 100 to detect the test piece 60.

[0085] In some embodiments of the present application, the detection device 100 further includes: a first displacement device 40 and a second displacement device 50. The first displacement device 40 is used to drive the fixture device 10 to move along the first direction. The second displacement device 50 is used to drive the fixture device 10 to move along the second direction. The first direction intersects with the second direction, and the plane where the first direction and the second direction are located is perpendicular to the detection direction of the first detection sensor 21. The detection direction of the first detection sensor 21 is parallel to the detection direction of the second detection sensor 31.

[0086] The first displacement device 40 and the second displacement device 50 drive the fixture device 10 to move in the first direction and the second direction respectively. After the piece to be tested 60 is loaded in the fixture device 10, the first displacement device 40 and the second displacement device 50 drive the piece to be tested 60 to move in a plane space perpendicular to the direction of the first detection sensor 21, so that the first detection sensor 21 and the second detection sensor 31 can detect at different positions of the piece to be tested 60, so that the first detection sensor 21 and the second detection sensor 31 can obtain multiple groups of detection data. By analyzing and calculating the multiple groups of detection data, the detection accuracy and reliability of the detection device 100 are improved.

[0087] In some embodiments of the present application, the first displacement device 40 and the second displacement device 50 can be driven by an electric screw to drive the fixture device 10 to move in the first direction and the second direction respectively under the guidance of the linear slide assembly, and a grating ruler can also be provided to detect the movement distance of the fixture device 10 in the first direction and the second direction respectively. Among them, the working principles of the electric screw, the linear slide assembly and the grating ruler are conventional technical means in the field, so they are not described here.

[0088] See also Figure 1 to Figure 2 In some embodiments of the present application, the fixture device 10 further includes a detection component 13 , and the detection component 13 is used to detect whether the fixture device 10 is loaded with a workpiece to be tested 60 .

[0089] The detection component 13 detects whether the fixture device 10 is loaded with the test piece 60. If the fixture device 10 is loaded with the test piece 60, the first detection sensor 21 and the second detection sensor 31 are driven by the first moving mechanism 22 and the second moving mechanism 32 to move out of the range of the test piece 60 to avoid the first detection sensor 21 and the second detection sensor 31 from colliding with the test piece 60, thereby ensuring the safety of the detection equipment 100.

[0090] In some typical application scenarios of the present application, the test piece 60 is a brake disc.

[0091] During the inspection of the piece to be tested 60, the piece to be tested 60 is placed in the limiting hole 112 of the table 111, and the piece to be tested 60 is lifted and limited by the first limiting member 114. The light emitting member 121 irradiates the piece to be tested 60 with visible light 122, thereby avoiding the formation of a light spot on the piece to be tested 60. The piece to be tested 60 is rotated to move the positioning feature 61 (such as a threaded hole) on the piece to be tested 60 to the light spot, thereby completing the positioning of the piece to be tested 60. In this way, the piece to be tested 60 is fixed to the fixture device 10 at the expected position and angle.

[0092] After the test piece 60 is fixed and positioned, the image information of the test piece 60 is obtained by the third detection sensor 23, and then the center position of the test piece 60 and the position of the positioning feature 61 are determined. Then, a coordinate system about the test piece 60 is formed by the center position of the test piece 60 and the position of the positioning feature 61, wherein the line passing through the center position of the test piece 60 and the position of the positioning feature 61 can be used as the X-axis of this coordinate system, the center position of the test piece 60 can be used as the origin of this coordinate system, and the line passing through the center position of the test piece 60 and perpendicular to the X-axis can be used as the Y-axis of this coordinate system.

[0093] After the coordinate system is established, the first moving mechanism 22 drives the first detection sensor 21 to move, so that the distance between the first detection sensor 21 and the object to be tested 60 meets the expected requirements; the second moving mechanism 32 drives the second detection sensor 31 to move, so that the distance between the second detection sensor 31 and the object to be tested 60 meets the expected requirements. In this way, the positioning of the first detection sensor 21 and the second detection sensor 31 is completed.

[0094] After positioning the first detection sensor 21 and the second detection sensor 31, the first displacement device 40 and the second displacement device 50 drive the fixture device 10 loaded with the test piece 60 to move so that the measured point of the test piece 60 reaches the detection range of the first detection sensor 21 and the second detection sensor 31. Then, the first distance data and the second distance data of the measured point are detected by the first detection sensor 21 and the second detection sensor 31 respectively. By moving the test piece 60 for multiple times, multiple measured points of the test piece 60 are detected to obtain distance data of multiple points. After obtaining the distance data, the coordinate data corresponding to the measured point is recorded. In this way, the first data information and the second data information of the test piece 60 are obtained, and then the detection result is calculated based on the first data information and the second data information.

[0095] The thickness of the test piece 60 can be calculated according to the first distance data and the second distance data.

[0096] A simulated surface of the test piece 60 can be simulated through the distance data and coordinate data of multiple points, and then the flatness and parallelism of the test piece 60 can be calculated based on the simulated surface.

[0097] When different thickness positions of the test piece 60 are detected, the first moving mechanism 22 and the second moving mechanism 32 respectively drive the first detection sensor 21 and the second detection sensor 31 to move, so that the distances between the first detection sensor 21 and the second detection sensor 31 and the test piece 60 meet the expected requirements, thereby enabling the detection device 100 to adapt to the detection needs of different thickness positions of the test piece 60.

[0098] When the tested piece 60 is reshaped, the tested piece 70 after the reshape is smaller than the tested piece 60 before the reshape. A positioning ring can be inserted into the limiting hole 112 of the table 111, and the table 111 and the limiting ring 115 are connected through the second limiting member 118. All the second limiting members 118 are connected through the limiting ring 115, thereby improving the structural strength of the second limiting members 118. The tested piece 60 is limited and lifted by the second limiting member 118, thereby avoiding displacement of the tested piece 60 during the detection process and improving the reliability of the detection result. In this way, the tested piece 70 after the reshape is limited by the limiting ring 115 and the second limiting member 118, so that the detection device 100 can adapt to the detection of the tested piece 60 of smaller size.

[0099] In the description of this specification, the description with reference to the terms "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] In addition, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A detection device, characterized in that: include: A fixture device, wherein the fixture device is used to load the workpiece to be tested; A first detection device, the first detection device comprising a first detection sensor and a first moving mechanism, the first moving mechanism being used to drive the first detection sensor to approach or move away from the object to be tested during the detection process, and the first detection sensor being used to obtain first data information of the object to be tested from one side of the object to be tested; A second detection device, the second detection device comprising a second detection sensor and a second moving mechanism, the second moving mechanism being used to drive the second detection sensor to approach or move away from the object to be tested during the detection process, and the second detection sensor being used to obtain second data information of the object to be tested from a side of the object to be tested away from the first detection device; wherein a detection result is determined according to the first data information and the second data information; The fixture device includes: A limiting mechanism, the limiting mechanism is used to limit the position of the test piece; A positioning mechanism, the positioning mechanism is used to provide a reference to the positioning feature on the test piece to position the test piece; The limiting mechanism comprises: A table plate, wherein the table plate is provided with a limiting hole, and the side wall profile of the limiting hole is adapted to the profile of the workpiece to be tested; A first limiting member, the number of which is at least three, the first limiting members being dispersedly arranged along the sidewall profile of the limiting hole, and the first limiting members being used to limit the position of the workpiece to be tested; The limiting mechanism also includes: A limiting ring, wherein the outer contour of the limiting ring is adapted to the side wall contour of the limiting hole, and the inner contour of the limiting ring is adapted to the contour of the tested piece after the modification; A second limiting member, the number of which is at least three, the second limiting members are dispersedly arranged along the inner contour, and the second limiting members connect the table plate and the limiting ring; Wherein, the second limiting member is provided with a limiting portion, the limiting portion at least extends into the range of the inner contour, and the limiting portion is used to limit the position of the test piece after the shape change; The positioning mechanism comprises: A light emitting member, the light emitting member being used to emit visible light; A mounting bracket, the mounting bracket is used to fix the light emitting element; Wherein, during the detection process of the piece to be tested, the light emitting element irradiates the visible light to the piece to be tested, and when the visible light irradiates the positioning feature, it indicates that the positioning of the piece to be tested is in line with expectations; The mounting bracket comprises: A support member, the support member is used to support the light output member; A mounting member, the mounting member is mounted on the bracket member, and the light emitting member is mounted on the mounting member; Wherein, the relative position and / or relative angle between the mounting member and the bracket member is adjusted to adjust the irradiation position of the visible light.

2. The detection device according to claim 1, characterized in that: The first detection device further includes a third detection sensor, and the third detection sensor is used to obtain image information of the object to be detected.

3. The detection device according to claim 1, characterized in that: The first data information includes first distance data, and the second data information includes second distance data.

4. The detection device according to claim 1, characterized in that: The detection device also includes: A first displacement device, the first displacement device is used to drive the fixture device to move along a first direction; A second displacement device, the second displacement device is used to drive the fixture device to move along a second direction; The first direction intersects with the second direction, and a plane where the first direction and the second direction are located is perpendicular to a detection direction of the first detection sensor.

5. The detection device according to claim 1, characterized in that: The fixture device further comprises a detection component, and the detection component is used to detect whether the fixture device is loaded with the workpiece to be tested.

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