Two-dimensional code defect detecting and positioning device

Abstract

The utility model discloses a two-dimensional code defect detecting and positioning device, which belongs to the field of two-dimensional code defect detection and comprises a base. A height adjusting assembly is vertically arranged on the base; two angle adjusting assemblies are slidably assembled on the height adjusting assembly, and a camera body is assembled between the two angle adjusting assemblies. According to the two-dimensional code defect detecting and positioning device, the camera body can shoot two-dimensional codes on a workpiece from multiple angles, the two-dimensional codes at different positions can be captured in cooperation with height adjustment of the camera body, detection blind areas are reduced, it is ensured that the camera body can capture complete two-dimensional code images, and the detection accuracy is improved. Further completing defect detection on the two-dimensional code on the workpiece; the height adjusting assembly automatically controls the camera body, errors and instability caused by manual adjustment are reduced, and it is ensured that the camera body is located at the optimal position all the time for detection.

Description

Technical Field

[0001] The utility model belongs to the field of two-dimensional code defect detection, and specifically relates to a two-dimensional code defect detection and positioning device. Background Art

[0002] A QR code is a black and white graphic that records data symbol information distributed in a plane (two-dimensional direction) according to a certain geometric pattern. In the prior art, the QR code is generally set on the workpiece by laser, spray paint, etc., and then the QR code information is recognized and read by a QR code detection device. The QR code detection device is generally fixed to the base with bolts, and a camera is provided on the detector. The camera recognizes and detects the QR code on the workpiece and converts it into corresponding information.

[0003] For example, a Chinese public patent with patent number CN220706899U discloses a two-dimensional code detection device; the cited document has the effect of improving the convenience of using the two-dimensional code detection device and being able to adjust the height of the camera at any time without the aid of tools.

[0004] In actual use, although the above cited patent realizes the height adjustment of the camera for QR code detection, it still has certain limitations in use, that is, the camera height in the document needs to be adjusted manually, the overall adjustment is not accurate enough, and in batch detection, the adjustment method is cumbersome and requires a lot of man-hours; at the same time, the camera angle detection in the cited document is single, and can only perform QR code detection at vertical height, resulting in the camera being unable to capture the complete image of the QR code when the workpiece position is deflected, resulting in a limited detection range and an increased risk of missed detection and false detection, and the camera with a fixed angle may be disturbed by light reflection, resulting in a decrease in image quality, thereby affecting the accuracy of QR code recognition and detection. Therefore, a QR code defect detection and positioning device is proposed to solve the problems in the cited document. Utility Model Content

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides a QR code defect detection and positioning device, which has the advantage of precise control of the camera height to adapt to QR code detection at different heights. The camera can be adjusted at an angle to facilitate QR code detection at different angles, and the overall detection is more accurate.

[0006] To achieve the above-mentioned purpose, the utility model provides a two-dimensional code defect detection and positioning device, comprising a base; a height adjustment component is vertically arranged on the base; two groups of angle adjustment components are slidably assembled on the height adjustment component, and a camera body is assembled between the two groups of angle adjustment components;

[0007] The height adjustment assembly comprises an adjustment seat arranged on the base, a rectangular groove is provided on the front end surface of the adjustment seat along the vertical direction thereof, a threaded screw is rotated in the rectangular groove, a slider seat is meshed with the outside of the threaded screw, and a connecting seat is installed on the side of the slider seat;

[0008] The two groups of angle adjustment components each include a bracket seat arranged on the side of the connecting seat, a positioning plate is installed on the side of the bracket seat, a shaft sleeve is embedded in the positioning plate, a rotating rod is rotatably arranged in the shaft sleeve, and the two rotating rods are symmetrically arranged and clamping forks are installed on the opposite sides thereof;

[0009] The camera body is clamped between the two clamping forks.

[0010] As a further improvement of the utility model, the adjustment seat is equipped with a bearing member, the bottom end of the threaded screw is rotatably matched with the bearing member, the outer side surface of the slider seat is in contact with the inner wall of the adjustment seat; the connecting seat is detachably arranged on the side of the slider seat by a bolt member.

[0011] As a further improvement of the utility model, a reciprocating motor is installed on the top of the adjusting seat, and the output end of the reciprocating motor passes through the adjusting seat and is connected to the top of the threaded screw.

[0012] As a further improvement of the utility model, the bushing is provided with a ball bearing, the rotating rod is rotatably matched with the ball bearing, ear seats are integrally provided on both sides of the outer wall of the camera body, the two ear seats respectively correspond to one of the clamping forks and are embedded in the clamping forks, and a bolt member is also provided between the clamping fork and the ear seat.

[0013] As a further improvement of the utility model, an extension plate is protruding from the bottom of the bracket seat, a guide rod cylinder is installed on the side of the extension plate, an output end of the guide rod cylinder is connected to a rack, and the rack slides on the side of the bracket seat.

[0014] As a further improvement of the utility model, one end of the two rotating rods passes through the shaft sleeve and the positioning plate and is extended to be connected with a gear, and the two gears are respectively arranged corresponding to one of the guide rod cylinders and mesh with each other.

[0015] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0016] The two-dimensional code defect detection and positioning device of the present invention can shoot the two-dimensional code on the workpiece from multiple angles by rotating the angle of the camera body, compared with the single detection range in the cited document. Combined with the height adjustment of the camera body, it can ultimately ensure that the two-dimensional codes in different positions can be captured, reducing the detection blind area, ensuring that the camera body can capture the complete two-dimensional code image, and then complete the defect detection of the two-dimensional code on the workpiece. At the same time, by adjusting the detection angle of the camera body, the problems of direct light and reflection can be avoided, and a clearer image can be obtained, thereby improving the accuracy of two-dimensional code recognition and defect detection.

[0017] The two-dimensional code defect detection and positioning device of the utility model can, in actual use, cover a larger detection area of ​​the camera body by adjusting the detection height of the camera body, thereby allowing the camera body to adapt to workpieces of different sizes and shapes, ensuring that all two-dimensional codes are within the field of view of the camera. At the same time, the height adjustment component can accurately adjust the height of the camera body to ensure that the camera body and the workpiece maintain an optimal distance, thereby obtaining a clearer image and improving the accuracy of two-dimensional code recognition and defect detection. Compared with the manual adjustment method in the cited document, the automatic control of the camera body by the height adjustment component of the present application reduces the error and instability caused by manual adjustment, ensuring that the camera body is always in the best position for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the height adjustment component and the angle adjustment component of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the angle adjustment component and the camera body of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall installation structure of the angle adjustment component of the utility model.

[0022] In all the drawings, the same figure marks represent the same technical features, specifically: 1. base; 2. height adjustment assembly; 21. adjustment seat; 22. bearing member; 23. threaded screw; 24. slider seat; 25. connecting seat; 26. reciprocating motor; 3. angle adjustment assembly; 31. bracket seat; 32. extension plate; 33. rack; 34. positioning plate; 35. bushing; 36. rotating rod; 37. clamping fork; 38. guide rod cylinder; 39. gear; 4. camera body; 41. ear seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] Depend on Figure 1-4 A two-dimensional code defect detection and positioning device is provided, comprising a base 1; a height adjustment component 2 is vertically arranged on the base 1; two groups of angle adjustment components 3 are slidably assembled on the height adjustment component 2, and a camera body 4 is assembled between the two groups of angle adjustment components 3;

[0026] The height adjustment assembly 2 includes an adjustment seat 21 disposed on the base 1, a rectangular groove is provided on the front end surface of the adjustment seat 21 along the vertical direction thereof, a threaded screw 23 is rotated in the rectangular groove, a slider seat 24 is meshed with the outside of the threaded screw 23, and a connecting seat 25 is installed on the side of the slider seat 24;

[0027] The two angle adjustment components 3 each include a bracket seat 31 disposed on the side of the connecting seat 25, a positioning plate 34 is installed on the side of the bracket seat 31, a shaft sleeve 35 is embedded in the positioning plate 34, a rotating rod 36 is rotatably arranged in the shaft sleeve 35, and the rotating rod 36 is symmetrically arranged and a clamping fork 37 is installed on the opposite side thereof;

[0028] The camera body 4 is clamped between the clamping forks 37 .

[0029] In this embodiment, in actual use, the detection angle adjustment of the camera body 4 can be achieved through the mutual movement and coordination of multiple components in the angle adjustment assembly 3; when the rack 33 is moving vertically, it is limited by the meshing of the rack 33 and the gear 39, so that the set rotating rod 36 can be rotated, thereby driving the camera body 4 on the clamping fork 37 at the end of the rotating rod 36 to rotate. By rotating the angle of the camera body 4, compared with the single detection range in the cited document, the camera body 4 of the present application can shoot the QR code on the workpiece from multiple angles, and cooperate with the height adjustment of the camera body 4, it can finally ensure that the QR codes in different positions can be captured, reduce the detection blind area, and ensure that the camera body 4 can capture the complete QR code image, thereby completing the defect detection of the QR code on the workpiece.

[0030] Furthermore, by adjusting the detection angle of the camera body 4, the problems of direct light and reflection can be avoided, and a clearer image can be obtained, thereby improving the accuracy of two-dimensional code recognition and defect detection.

[0031] Furthermore, by the mutual movement and coordination of multiple components within the height adjustment component 2, the vertical height adjustment of the angle adjustment component 3 and the camera body 4 installed on the height adjustment component 2 can be achieved. In actual use, by adjusting the detection height of the camera body 4, the camera body 4 can cover a larger detection area, so that the camera body 4 can adapt to workpieces of different sizes and shapes, ensuring that all QR codes are within the field of view of the camera. At the same time, the height adjustment component 2 can accurately adjust the height of the camera body 4 to ensure that the camera body 4 maintains an optimal distance from the workpiece, thereby obtaining a clearer image and improving the accuracy of QR code recognition and defect detection. Compared with the manual adjustment method in the cited document, the automatic control of the camera body 4 by the height adjustment component 2 of the present application reduces the error and instability caused by manual adjustment, ensuring that the camera body 4 is always in the best position for detection.

[0032] Specifically, refer to Figure 1-2 The adjusting seat 21 is equipped with a bearing member 22, the bottom end of the threaded screw 23 is rotatably matched with the bearing member 22, the outer side surface of the slider seat 24 is in contact with the inner wall of the adjusting seat 21; the connecting seat 25 is detachably arranged on the side surface of the slider seat 24 by a bolt member.

[0033] In this embodiment, the bearing member 22 is provided to cooperate with the threaded screw 23 in rotation, so that the threaded screw 23 can rotate more smoothly and steadily, reduce the wear of the threaded screw 23 during rotation, and increase the service life of the height adjustment component 2. At the same time, the bearing member 22 can provide stable and precise rotational motion, so that the threaded screw 23 can maintain highly precise positioning when adjusting the height of the camera body 4, thereby improving the accuracy and stability of defect detection.

[0034] Furthermore, the connecting seat 25 is assembled on the side of the slider seat 24 by means of bolts. In actual use, when the user needs to disassemble and repair the angle adjustment assembly 3 and the camera body 4, it can be more portable.

[0035] Specifically, refer to Figure 1-2 A reciprocating motor 26 is installed at the top of the adjusting seat 21 , and the output end of the reciprocating motor 26 passes through the adjusting seat 21 and is connected to the top of the threaded screw 23 .

[0036] In this embodiment, the reciprocating motor 26 is used to control the reciprocating rotation of the threaded screw 23. In a preferred embodiment, as shown in the embodiment Figure 2 As shown in , by connecting the reciprocating motor 26 to a power source, the output end of the reciprocating motor 26 can rotate, and the threaded screw 23 connected to the output end of the reciprocating motor 26 can cooperate with the bearing member 22 to rotate accordingly;

[0037] The power connection method of the reciprocating motor 26 is the existing technology, and the control circuit can be realized by simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0038] Specifically, refer to Figure 3-4 The shaft sleeve 35 is provided with a ball bearing, and the rotating rod 36 rotates with the ball bearing. Ear seats 41 are integrally provided on both sides of the outer wall of the camera body 4. The two ear seats 41 respectively correspond to one of the clamping forks 37 and are embedded in the clamping fork 37. Bolts are also provided between the clamping fork 37 and the ear seats 41.

[0039] In this embodiment, the ball bearing in the shaft sleeve 35 can be used to ensure stable rotation of the rotating rod 36. In actual use, when the rotating rod 36 rotates, the camera body 4 on the clamping fork 37 can be driven to rotate.

[0040] In a preferred embodiment, an ear seat 41 provided on the side of the camera body 4 can be used to allow the camera body 4 to be installed between two clamping forks 37. The user aligns the ear seat 41 on the side of the camera body 4 with the two clamping forks 37 on the angle adjustment assembly 3, and then engages the ear seat 41 into the clamping fork 37. Then, the user uses a bolt to complete the connection between the clamping fork 37 and the ear seat 41. At this time, the camera body 4 can be assembled in the angle adjustment assembly 3.

[0041] Specifically, refer to Figure 3-4 An extension plate 32 is protruding from the bottom of the bracket seat 31, and a guide rod cylinder 38 is installed on the side of the extension plate 32. The output end of the guide rod cylinder 38 is connected to a rack 33, and the rack 33 slides on the side of the bracket seat 31.

[0042] In this embodiment, the guide rod cylinder 38 can be used to drive the rack 33 to move vertically. In a preferred embodiment, the user can also set a guide rail on the side of the bracket seat 31 to limit the rack 33, thereby ensuring that the rack 33 is always in a straight line when moving.

[0043] Specifically, refer to Figure 3-4 One end of the rotating rod 36 passes through the shaft sleeve 35 and the positioning plate 34 and is extended to be connected with a gear 39. The gear 39 is respectively arranged corresponding to one of the guide rod cylinders 38 and meshes with it.

[0044] In this embodiment, the rack 33 can be used to drive the gear 39 to rotate. In a preferred embodiment, as shown in FIG. Figure 3As shown in the figure, when the rack 33 moves, it is limited by the meshing of the rack 33 and the gear 39, and the connection between the gear 39 and the rotating rod 36 allows the rotating rod 36 to rotate. The user can control the angle rotation of the gear 39 by controlling the moving distance of the rack 33.

[0045] The two-dimensional code defect detection and positioning device of the utility model:

[0046] Step 1: In actual use, when the user needs to assemble the camera body 4, the ear seat 41 on the side of the camera body 4 is aligned with the two clamping forks 37 on the angle adjustment component 3, and then the ear seat 41 is embedded in the clamping fork 37, and the clamping fork 37 and the ear seat 41 are connected by bolts. At this time, the camera body 4 can be assembled in the angle adjustment component 3;

[0047] Step 2: When the user needs to use the camera body 4 to detect defects on the QR code, the height of the camera body 4 can be adjusted by using the height adjustment component 2, and the angle of the camera body 4 can be adjusted by using the angle adjustment component 3;

[0048] Step 3: During this period, when the user uses the height adjustment component 2 to adjust the height, the reciprocating motor 26 is connected to a power source so that the output end of the reciprocating motor 26 can rotate. At this time, the threaded screw 23 connected to the output end of the reciprocating motor 26 can cooperate with the bearing 22 to rotate. When the threaded screw 23 is reciprocating, it is limited by the adjustment seat 21. At this time, the slider seat 24 engaged with the outside of the threaded screw 23 can drive the connecting seat 25 to rise and fall vertically along the travel range of the threaded screw 23. At this time, the two sets of angle adjustment components 3 installed on the side of the connecting seat 25 can follow the movement of the connecting seat 25 for synchronous lifting and lowering. The user adjusts the height adjustment component 2 according to the height of the QR code on the workpiece until the camera body 4 is at a suitable detection height;

[0049] Step 4: When the QR code on the workpiece moves to one side of the camera body 4 as the production line drives, the user can use the camera body 4 to detect the QR code on the workpiece, and then use image transmission to cooperate with the inspection personnel to complete the defect detection of the QR code. At the same time, when the placement position of the QR code changes, the user can adjust the angle adjustment component 3 by connecting the guide rod cylinder 38 to an external air source. At this time, by giving the guide rod cylinder 38 an output air pressure value, the guide rod cylinder 38 can drive its output end and the angle adjustment component 3 located on the output end to move radially. When the rack 33 is moving, it is affected by The meshing limit of the rack 33 and the gear 39, combined with the connection between the gear 39 and the rotating rod 36, allows the rotating rod 36 to rotate, thereby driving the two clamping forks 37 at the ends of the rotating rod 36 and the camera body 4 installed on the clamping fork 37 to rotate. By rotating the angle of the camera body 4, the camera body 4 can shoot the QR code on the workpiece from multiple angles. Combined with the height adjustment of the camera body 4, it can ultimately ensure that the QR codes at different positions can be captured, reducing the detection blind area, ensuring that the camera body 4 can capture the complete QR code image, and then complete the defect detection of the QR code on the workpiece.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-dimensional code defect detection and positioning device, characterized in that ； The invention comprises a base (1); a height adjustment component (2) is vertically arranged on the base (1); two groups of angle adjustment components (3) are slidably assembled on the height adjustment component (2), and a camera body (4) is assembled between the two groups of angle adjustment components (3); The height adjustment assembly (2) comprises an adjustment seat (21) arranged on the base (1), a rectangular groove is provided on the front end surface of the adjustment seat (21) along the vertical direction thereof, a threaded screw (23) is rotated in the rectangular groove, a slider seat (24) is meshedly arranged on the outside of the threaded screw (23), and a connecting seat (25) is installed on the side of the slider seat (24); The two groups of angle adjustment components (3) each comprise a support seat (31) arranged on a side of the connecting seat (25), a positioning plate (34) being installed on the side of the support seat (31), a shaft sleeve (35) being embedded in the positioning plate (34), a rotating rod (36) being rotatably arranged in the shaft sleeve (35), the two rotating rods (36) being symmetrically arranged and clamping forks (37) being installed on opposite sides thereof; The camera body (4) is clamped between the two clamping forks (37).

2. The two-dimensional code defect detection and positioning device according to claim 1, characterized in that: The adjusting seat (21) is equipped with a bearing member (22), the bottom end of the threaded screw (23) is rotatably matched with the bearing member (22), and the outer side surface of the slider seat (24) is in contact with the inner wall of the adjusting seat (21); the connecting seat (25) is detachably arranged on the side surface of the slider seat (24) by means of bolt members.

3. The two-dimensional code defect detection and positioning device according to claim 1, characterized in that: A reciprocating motor (26) is installed at the top of the adjustment seat (21), and an output end of the reciprocating motor (26) passes through the adjustment seat (21) and is connected to the top of the threaded screw rod (23).

4. The two-dimensional code defect detection and positioning device according to claim 1, characterized in that: The shaft sleeve (35) is provided with a ball bearing, and the rotating rod (36) is rotatably matched with the ball bearing. Ear seats (41) are integrally provided on both sides of the outer wall of the camera body (4). The two ear seats (41) respectively correspond to one of the clamping forks (37) and are embedded in the clamping fork (37). A bolt member is also provided between the clamping fork (37) and the ear seat (41).

5. The two-dimensional code defect detection and positioning device according to claim 1, characterized in that: An extension plate (32) is protruding from the bottom of the support seat (31), a guide rod cylinder (38) is installed on the side of the extension plate (32), an output end of the guide rod cylinder (38) is connected to a rack (33), and the rack (33) slides on the side of the support seat (31).

6. The two-dimensional code defect detection and positioning device according to claim 5, characterized in that: One end of each of the two rotating rods (36) passes through the shaft sleeve (35) and the positioning plate (34) and is extended to be connected with a gear (39). The two gears (39) are respectively arranged corresponding to one of the guide rod cylinders (38) and mesh with each other.

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