Detection device

Abstract

The utility model discloses a detection device, and particularly relates to the technical field of detection equipment. The detection device comprises a fixed support; the lens piece is arranged on the fixed bracket; the camera is arranged on the lens piece so as to acquire feature information of the workpiece to be detected; and in the plurality of light sources, part of the light sources are arranged on the sides, close to the to-be-detected workpiece, of the other part of the light sources so as to irradiate the to-be-detected workpiece from different positions. According to the utility model, the plurality of light sources are arranged on the fixed bracket, so that the integration level is improved, the occupied space is reduced, the productivity is favorably improved, the complexity of equipment management is reduced, the operation and maintenance cost is reduced, the detection efficiency is improved, the distances between the plurality of light sources and the workpiece to be detected are different, different effects are exerted, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a testing device. Background Technology

[0002] On the production line, quality inspection of the phone's mid-frame is a crucial step in ensuring that the product meets design standards. Related technologies typically involve setting up light sources and lenses at multiple stations to independently inspect different parts of the mid-frame, identifying dimensional deviations, surface defects, or assembly errors. Because the inspection process requires the mid-frame to pass through multiple stations sequentially for different parts, the overall inspection efficiency is low, impacting production cycle time. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a detection device that improves detection efficiency.

[0004] A detection device according to an embodiment of the present invention includes: a fixed bracket; a lens component disposed on the fixed bracket; a camera disposed on the lens component to acquire feature information of a workpiece to be tested; and multiple light sources, wherein some of the multiple light sources are disposed on the side of the other multiple light sources close to the workpiece to be tested, so as to illuminate the workpiece to be tested from different positions.

[0005] The detection device according to the present invention improves integration and reduces space occupation by setting multiple light sources on a fixed bracket, which is conducive to increasing production capacity, reducing the complexity of equipment management, reducing operation and maintenance costs, and improving detection efficiency. Moreover, the multiple light sources are at different distances from the workpiece to be tested, thus playing different roles and improving the accuracy of detection.

[0006] In some embodiments, the camera and the light source are located on opposite sides of the fixed bracket.

[0007] In some embodiments, the plurality of light sources include a first light source and a second light source, the second light source being disposed on the side of the first light source near the workpiece to be tested, the fixed bracket being provided with a first support member, the first light source being disposed on the first support member, the first light source being provided with a second support member, and the second light source being disposed on the second support member.

[0008] In some embodiments, the fixed bracket includes: a bracket body on which the lens is disposed; a mounting portion on which the mounting portion is disposed and has mounting holes; and a connecting portion on which the connecting portion is disposed and connected to the first support member.

[0009] In some embodiments, the first support extends toward a direction away from the camera, the first support is provided with a first limiting groove, the first limiting groove extends along the extending direction of the first support, and the first light source is provided with a first mating part, the first mating part being slidably disposed in the first limiting groove.

[0010] In some embodiments, the second support member includes: a mating body having a second limiting groove, the first light source having a second mating part having a second mating portion slidably disposed within the second limiting groove; and a bending portion disposed at the end of the mating body away from the first light source, the bending portion being connected to the second light source.

[0011] In some embodiments, the light source extends circumferentially along the extension of the central axis of the lens element.

[0012] In some embodiments, there are multiple cameras, and the multiple cameras are located on different sides of the lens element.

[0013] In some embodiments, the plurality of cameras include a first camera and a second camera, the first camera being disposed on a first side of the lens assembly, the second camera being disposed on a second side of the lens assembly, the lens assembly being provided with a point light generating element, the point light generating element being disposed on a third side of the lens assembly, and the second side and the third side being configured as opposite sides.

[0014] In some embodiments, the workpiece to be tested is the mid-frame of a mobile phone.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the detection device in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram showing the distribution of the first light source and the second light source in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooperation between the first mating part and the first limiting groove in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram showing the position of the mounting holes in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the cooperation between the second mating part and the second limiting groove in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram showing the position of the point light generating element in an embodiment of this utility model.

[0023] Figure label:

[0024] 100. Detection device; 10. Fixed bracket; 11. First support member; 111. First limiting groove; 12. Second support member; 121. Matching body; 1211. Second limiting groove; 122. Bending part; 13. Bracket body; 14. Mounting part; 141. Mounting hole; 15. Connecting part; 20. Lens component; 21. Point light generating component; 30. Camera; 31. First camera; 32. Second camera; 40. Light source; 41. First light source; 411. First mating part; 412. Second mating part; 42. Second light source. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The detection device 100 of this utility model embodiment is described below with reference to the accompanying drawings.

[0031] Reference Figure 1 According to an embodiment of the present invention, a detection device 100 includes: a fixed bracket 10, a lens 20, a camera 30, and multiple light sources 40.

[0032] Lens 20 is mounted on fixed bracket 10. Camera 30 is mounted on lens 20 to acquire feature information of the workpiece under test. Among multiple light sources 40, some light sources 40 are located on the side of other light sources 40 close to the workpiece under test, so as to illuminate the workpiece under test from different positions.

[0033] The lens assembly 20 contains a lens, through which light passes and is focused onto the image sensor of the camera 30. Each pixel unit converts the light signal into an electrical signal.

[0034] The camera 30 contains an image sensor. The pixel units on the image sensor convert light signals into electrical signals to acquire feature information of the workpiece under test. The feature information includes the outline, shape, or surface flatness, texture, etc. of the workpiece under test, and determines whether the workpiece under test is qualified. For example, if the workpiece under test is a mobile phone frame, the mobile phone frame may have defects such as cracks or gaps. The camera 30 acquires feature information to determine whether the mobile phone frame is qualified.

[0035] Specifically, camera 30 can be an area scan camera, which is an imaging device that acquires images in units of "areas". It can acquire complete two-dimensional image information in a single exposure, increasing the amount of information acquired.

[0036] On the production line, quality inspection of the phone's mid-frame is a crucial step in ensuring product compliance with design standards. Related technologies typically involve setting up light sources and lenses at multiple stations to independently inspect different parts of the mid-frame, identifying dimensional deviations, surface defects, or assembly errors. However, this inspection method has several drawbacks. First, the need for multiple stations to house the light sources and lenses results in complex equipment configurations, consuming significant production space and limiting production line layout, thus hindering capacity expansion. Second, the independent calibration and maintenance of each station's light source and lens increases the complexity of equipment management and raises operational costs. Furthermore, the process requires the mid-frame to sequentially pass through multiple stations for different parts inspection, leading to low overall inspection efficiency and impacting production cycle time.

[0037] In this embodiment of the utility model, by integrating multiple light sources 40 on the fixed bracket 10, the light sources 40 of multiple workstations are concentrated on the same workstation, thereby improving the integration level, reducing the space occupied, which is conducive to increasing production capacity, reducing the complexity of equipment management, reducing operation and maintenance costs, and the mobile phone frame does not need to pass through multiple workstations in sequence during the testing process, thereby improving the testing efficiency.

[0038] Meanwhile, some of the light sources 40 are located on the side of the other light sources 40 that are close to the workpiece to be tested. For example, the first light source 40 is closer to the workpiece to be tested than the second light source 40. The first light source 40 produces a shadow effect on the workpiece to be tested, which helps to detect small defects or texture changes on the surface of the workpiece to be tested. The second light source 40 is farther away from the workpiece to be tested, which helps to highlight the surface features and edges of the workpiece to be tested, and is suitable for detecting the contour and shape of the workpiece to be tested.

[0039] Specifically, there can be two light sources 40, in which one light source 40 is closer to the workpiece to be measured than the other light source 40; or, there can be three, four, five or more light sources 40, which will not be elaborated here.

[0040] According to the present invention, the detection device 100 improves integration and reduces space occupation by setting multiple light sources 40 on the fixed bracket 10, which is conducive to increasing production capacity, reducing the complexity of equipment management, reducing operation and maintenance costs, and improving detection efficiency. Moreover, the multiple light sources 40 are at different distances from the workpiece to be tested, thus playing different roles and improving the accuracy of detection.

[0041] Reference Figure 1 In some embodiments, the camera 30 and the light source 40 are located on opposite sides of the fixed bracket 10.

[0042] Multiple light sources 40 are located on the same side of the fixed bracket 10, while the camera 30 and the light sources 40 are located on opposite sides of the fixed bracket 10, such as the top and bottom sides, the left and right sides, the front and back sides, etc.

[0043] In the above scheme, by setting the camera 30 and the light source 40 on opposite sides of the fixed bracket 10, the space around the fixed bracket 10 is fully utilized, and the camera 30 and the light source 40 are arranged reasonably. The light source 40 and the camera 30 are independent, which reduces the probability of mutual interference.

[0044] Specifically, the camera 30 is positioned on the upper side of the fixed bracket 10, the light source 40 is positioned on the lower side of the fixed bracket 10, and the workpiece to be measured is located below the light source 40. The light source 40 is closer to the workpiece to be measured, providing higher brightness.

[0045] Reference Figure 2 In some embodiments, the plurality of light sources 40 include a first light source 41 and a second light source 42. The second light source 42 is disposed on the side of the first light source 41 near the workpiece to be measured. A first support member 11 is provided on the fixed bracket 10. The first light source 41 is disposed on the first support member 11. A second support member 12 is provided on the first light source 41. The second light source 42 is disposed on the second support member 12.

[0046] The light source 40 includes multiple light sources 40 that illuminate the workpiece to be tested from different positions. The multiple light sources 40 include a first light source 41 and a second light source 42. Compared with the first light source 41, the second light source 42 is closer to the workpiece to be tested. A first support member 11 is provided on the fixed bracket 10. The first light source 41 is fixed on the first support member 11 and supported by the first support member 11. A second support member 12 is installed on the first light source 41 and the second light source 42 is fixed on the second support member 12 and supported by the second support member 12.

[0047] In the above scheme, the fixed bracket 10 is provided with a first support member 11, the first light source 41 is provided on the first support member 11, the first light source 41 is provided with a second support member 12, and the second light source 42 is provided on the second support member 12. The first light source 41 is supported by the first support member 11, and the second light source 42 is supported by the second support member 12. The first light source 41 and the second light source 42 are fixed, making the structure simpler, the overall method more reliable, and reducing the overall cost.

[0048] Specifically, the first support member 11 is bolted to the fixed bracket 10. The first support member 11 extends downward. The first light source 41 is located below the fixed bracket 10 and is connected to the first support member 11. The second support member 12 is fixed to the first light source 41. The second support member 12 extends downward. The second light source 42 is located below the first light source 41 and is mounted on the second support member 12.

[0049] Reference Figure 3In some embodiments, the fixed bracket 10 includes: a bracket body 13, a mounting part 14, and a connecting part 15.

[0050] The lens component 20 is mounted on the bracket body 13. The mounting part 14 is mounted on the bracket body 13 and has a mounting hole 141. The connecting part 15 is mounted on the bracket body 13 and connects to the first support member 11.

[0051] The bracket body 13 is provided with a mounting part 14, and the mounting hole 141 on the mounting part 14 is used to pass bolts through it. The bracket body 13 is fixed by bolts, for example, the bracket body 13 is fixed on the base, thereby fixing the entire detection device 100. The lens component 20 is installed on the bracket body 13 to fix the lens component 20. The connecting part 15 is used to connect the first support component 11 and fix the first support component 11 on the bracket body 13.

[0052] In the above solution, by setting the mounting part 14 and the connecting part 15 on the bracket body 13 to fix the lens component 20 and the light source 40 respectively, the overall structure is more reasonable and the overall assembly is more convenient. At the same time, it makes it easier to fix the bracket 10, thus improving convenience.

[0053] Specifically, the mounting part 14 is located at the left end of the bracket body 13, and the mounting part 14 is provided with a plurality of mounting holes 141, through which bolts are inserted.

[0054] Reference Figures 3 to 5 In some embodiments, the first support member 11 extends toward a direction away from the camera 30, and the first support member 11 is provided with a first limiting groove 111. The first limiting groove 111 extends along the extending direction of the first support member 11, and the first light source 41 is provided with a first mating part 411, which is slidably disposed in the first limiting groove 111.

[0055] The first limiting groove 111 has a certain length and extends along the extension direction of the first support member 11. The first light source 41 is provided with a first mating part 411, which passes through the first limiting groove 111 and is slidably disposed in the first limiting groove 111. The first mating part 411 slides in the first limiting groove 111, so that the first light source 41 can move relative to the fixed bracket 10.

[0056] In the above scheme, by setting a first limiting groove 111 extending along the extension direction of the first support member 11, and setting a first mating part 411 on the first light source 41, the first mating part 411 is slidably disposed in the first limiting groove 111. The first limiting groove 111 restricts the movement of the first mating part 411, so that the first light source 41 moves relative to the fixed bracket 10, thereby making the first light source 41 adjustable. This allows the first light source 41 to be adjusted and optimized according to different detection needs, such as adjusting the angle and position of the light source 40, improving the detection effect on the workpiece to be tested, and increasing the applicability range.

[0057] Specifically, the first mating part 411 is an annular protrusion provided on the first light source 41. The annular protrusion is located in the first limiting groove 111, and the first limiting groove 111 restricts the annular protrusion.

[0058] Reference Figure 3 In some embodiments, the second support member 12 includes a mating body 121 and a bending portion 122.

[0059] The mating body 121 is provided with a second limiting groove 1211, and the first light source 41 is provided with a second mating part 412, which is slidably disposed in the second limiting groove 1211. A bent part 122 is disposed at the end of the mating body 121 away from the first light source 41, and the bent part 122 is connected to the second light source 42.

[0060] The second limiting groove 1211 is provided on the mating body 121. The second limiting groove 1211 has a certain length and extends along the extension direction of the mating body 121. The first light source 41 is provided with a second mating part 412, which is slidably disposed in the second limiting groove 1211. The second mating part 412 restricts the movement of the mating body 121, so that the second light source 42 moves relative to the first light source 41. This allows the second light source 42 to be adjusted, so that the second light source 42 can be adjusted and optimized according to different detection requirements, such as adjusting the angle and position of the light source 40, to improve the detection effect on the workpiece under test and increase the applicability range.

[0061] In the above scheme, by setting a second limiting groove 1211, a second mating part 412 is provided on the first light source 41. The second mating part 412 is slidably disposed in the second limiting groove 1211. The movement of the mating body 121 is restricted by the second mating part 412, so that the second light source 42 can move relative to the first light source 41. This makes the second light source 42 adjustable, so that the second light source 42 can be adjusted and optimized according to different detection needs, such as adjusting the angle and position of the light source 40, improving the detection effect on the workpiece under test, and increasing the applicability range. Furthermore, the bending part 122 is located at the end of the mating body 121 away from the first light source 41. The bending part 122 connects to the second light source 42, which facilitates the installation of the second light source 42 and makes the structure simpler.

[0062] Specifically, there are multiple cooperating bodies 121, which are spaced apart along the circumferential direction of the first light source 41. A bent portion 122 is located at the bottom end of the cooperating body 121, and the bent portion 122 bends inward and is connected to the second light source 42.

[0063] In some embodiments, the light source 40 extends in the circumferential direction along the extension of the central axis of the lens element 20.

[0064] The light source 40 has a certain length and extends circumferentially along the extension line of the central axis of the lens component 20.

[0065] In the above scheme, by setting the light source 40 to extend circumferentially along the extension line of the central axis of the lens component 20, the light emitted by the light source 40 can illuminate a larger area of ​​the workpiece to be tested, and the workpiece to be tested emits more light into the lens component 20, thus giving full play to its effectiveness and improving performance.

[0066] Specifically, the light source 40 is constructed as a ring, and the extension line of the central axis of the lens component 20 passes through the hole in the middle of the ring.

[0067] Reference Figure 4 In some embodiments, there are multiple cameras 30, which are located on different sides of the lens element 20.

[0068] Multiple cameras 30 are mounted on the lens assembly 20, and the multiple cameras 30 are set at different positions on the lens assembly 20 and located on different sides of the lens assembly 20.

[0069] In the above scheme, by placing multiple cameras 30 on different sides of the lens component 20, the surrounding space of the lens component 20 is fully utilized, and multiple cameras 30 are arranged in a reasonable manner, making the overall structure more compact and improving the space utilization rate. Furthermore, multiple cameras 30 can shoot and capture images simultaneously, improving efficiency. By concentrating multiple cameras 30 on a fixed bracket 10, costs are reduced and inspection efficiency is improved.

[0070] Specifically, there are two cameras 30. The first camera 30 is located on the upper side of the lens component 20, and the second camera 30 is located on the right side of the lens component 20; or, the first camera 30 is located on the upper side of the lens component 20, and the second camera 30 is located on the left side of the lens component 20; of course, the two cameras 30 can also be set in other different positions, or more cameras 30 can be set, which will not be elaborated here.

[0071] Reference Figure 6 In some embodiments, the plurality of cameras 30 include a first camera 31 and a second camera 32. The first camera 31 is disposed on a first side of the lens member 20, and the second camera 32 is disposed on a second side of the lens member 20. A point light generating element 21 is provided on the lens member 20, and the point light generating element 21 is disposed on a third side of the lens member 20. The second side and the third side are configured as opposite sides.

[0072] The first camera 31 is located on the first side of the lens component 20, the second camera 32 is located on the second side of the lens component 20, and the point light generator 21 is located on the third side of the lens component 20. The point light generator 21 is used to generate high-brightness, concentrated light, which is suitable for precise illumination of a specific area or object.

[0073] In the above scheme, a point light generating element 21 is set on the third side of the lens element 20. The third side is opposite to the second side, making full use of the space around the lens element 20, improving space utilization, facilitating the operation of the point light generating element 21, and improving convenience.

[0074] Specifically, the first camera 31 is located on the upper side of the lens component 20, the second camera 32 is located on the right side of the lens component 20, and the point light generating component 21 is located on the left side of the lens component 20.

[0075] In some embodiments, the workpiece to be tested is the mid-frame of a mobile phone.

[0076] The detection device 100 is used to detect the mid-frame of the mobile phone. The light source 40 illuminates the mid-frame of the mobile phone, and the camera 30 obtains the feature information of the mid-frame of the mobile phone through the lens 20 to detect the mid-frame of the mobile phone.

[0077] In some specific embodiments, a beam splitter is provided inside the lens element 20.

[0078] In some specific embodiments, appropriate lens components 20, point light generating components 21, first light source 41, second light source 42, and multiple cameras 30 can be selected according to the specific shape and size of the mobile phone frame, and the configuration can be increased or decreased according to specific project needs. By adjusting the angle and brightness of the light source 40, and parameters such as the focal length and exposure time of the camera 30, the best detection effect on the mobile phone frame can be achieved. At the same time, the multi-station integrated design allows the detection device 100 to complete multiple detection tasks at one station, reducing costs and improving efficiency.

[0079] Other configurations and operations of the detection device 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0080] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A detection device, characterized in that, include: Fixed bracket (10); Lens component (20), the lens component (20) is disposed on the fixed bracket (10); A camera (30) is mounted on the lens (20) to acquire feature information of the workpiece to be measured; Multiple light sources (40), wherein some of the multiple light sources (40) are located on the side of other light sources (40) close to the workpiece to be tested, so as to illuminate the workpiece to be tested from different positions.

2. The detection device according to claim 1, characterized in that, The camera (30) and the light source (40) are located on opposite sides of the fixed bracket (10).

3. The detection device according to claim 1, characterized in that, The plurality of light sources (40) include a first light source (41) and a second light source (42). The second light source (42) is disposed on the side of the first light source (41) near the workpiece to be tested. The fixed bracket (10) is provided with a first support member (11). The first light source (41) is disposed on the first support member (11). The first light source (41) is provided with a second support member (12). The second light source (42) is disposed on the second support member (12).

4. The detection device according to claim 3, characterized in that, The fixed bracket (10) includes: The support body (13) has the lens component (20) mounted on it. Mounting part (14), the mounting part (14) is provided on the bracket body (13), the mounting part (14) is provided with mounting hole (141); A connecting part (15) is provided on the support body (13) and the connecting part (15) is connected to the first support member (11).

5. The detection device according to claim 3, characterized in that, The first support member (11) extends in a direction away from the camera (30), and the first support member (11) is provided with a first limiting groove (111). The first limiting groove (111) extends along the extending direction of the first support member (11), and the first light source (41) is provided with a first mating part (411). The first mating part (411) is slidably disposed in the first limiting groove (111).

6. The detection device according to claim 5, characterized in that, The second support member (12) includes: The main body (121) is provided with a second limiting groove (1211), and the first light source (41) is provided with a second mating part (412). The second mating part (412) is slidably disposed in the second limiting groove (1211). A bending portion (122) is provided at one end of the mating body (121) away from the first light source (41), and the bending portion (122) is connected to the second light source (42).

7. The detection device according to claim 1, characterized in that, The light source (40) extends circumferentially along the extension of the central axis of the lens element (20).

8. The detection device according to claim 1, characterized in that, There are multiple cameras (30), and the multiple cameras (30) are located on different sides of the lens (20).

9. The detection device according to claim 8, characterized in that, The plurality of cameras (30) include a first camera (31) and a second camera (32). The first camera (31) is disposed on a first side of the lens assembly (20), and the second camera (32) is disposed on a second side of the lens assembly (20). A point light generator (21) is provided on the lens assembly (20), and the point light generator (21) is disposed on a third side of the lens assembly (20). The second side and the third side are configured as opposite sides.

10. The detection device according to any one of claims 1 to 9, characterized in that, The workpiece to be tested is the mid-frame of a mobile phone.

Images