Hexahedral workpiece appearance CCD detection device

Abstract

The utility model provides hexahedron workpiece appearance CCD detection device, including rotation detection platform, rotation detection platform includes bracket, the top of bracket is provided with two coaxial and can synchronous same direction rotation's pivot, two the opposite ends of pivot are connected with pneumatic clamping group, the below between two pivot sets up the supporting plate, the below of supporting plate is provided with the support, the bottom fixedly connected with transmission shaft of supporting plate top swing joint, the bottom of support and bracket fixed connection. In the utility model, set up two pivots, two pivots's opposite end connects pneumatic clamping group, and pneumatic clamping group holds hexahedron workpiece and turns over can show hexahedron workpiece opposite two big faces under the lens of CCD camera, and CCD camera can detect the six sides of hexahedron workpiece's six sides fast, need not manual turn over hexahedron workpiece, improve the detection efficiency, reduce the cost of manual investment.

Description

Technical Field

[0001] This utility model relates to the field of hexahedral workpiece inspection technology, specifically a CCD inspection device for the appearance of hexahedral workpieces. Background Technology

[0002] There are many hexahedral workpieces in industrial production. After such hexahedrals are processed, the appearance of all six faces usually needs to be inspected. For example, a square structure contains six sides (two large sides on the top and bottom, and four sides around the perimeter). After the six sides of this hexahedral are formed, the cleanliness of the appearance of the six sides needs to be inspected manually. For example, when there are silkscreened characters formed on the six sides of the hexahedral, whether the characters are clear, whether there is dirt, and whether the appearance and size of the hexahedral meet the requirements. However, manual inspection is slow, people are prone to fatigue, and misjudgment is easy to occur.

[0003] Therefore, devices have emerged on the market that use robotic arms to hold CCD cameras to replace manual inspection. These devices include a placement stage, a robotic arm, and a CCD camera. During inspection, the robotic arm holds the CCD camera and places the hexahedral workpiece on the placement stage. Then, the robotic arm is activated to bring the CCD camera close to the hexahedral workpiece on the placement stage, and the CCD camera performs visual inspection on the six faces of the hexahedral workpiece.

[0004] However, the above-mentioned detection device still has shortcomings in use: when visual inspection is required on two and four sides of a hexahedral workpiece, the bottom surface of the hexahedral workpiece placed on the platform will be blocked. The hexahedral workpiece needs to be flipped over manually before the blocked surface can be inspected, which affects the inspection efficiency. Moreover, when inspecting the six sides of the outer periphery of the hexahedral workpiece, the robotic arm needs to move the CCD camera over a large range to achieve accurate detection, which will increase the space occupied by the entire device.

[0005] Therefore, this utility model provides a CCD inspection device for the appearance of a hexahedral workpiece. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a CCD inspection device for the appearance of hexahedral workpieces, thereby solving the problems mentioned in the background section. This invention has the function of flipping the hexahedral workpiece, which facilitates the robotic arm to drive the CCD camera to perform accurate and rapid inspection of the hexahedral workpiece, thus improving inspection efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a CCD inspection device for the appearance of a hexahedral workpiece, comprising a rotating inspection platform, the rotating inspection platform including a bracket, two coaxial rotating shafts that can rotate synchronously and in the same direction are arranged above the bracket, a pneumatic clamping assembly is connected to the opposite ends of the two rotating shafts, a support plate is arranged below the two rotating shafts, a support is arranged below the support plate, a transmission shaft that is rotatably connected to the top of the support is fixedly connected to the bottom of the support plate, and the bottom end of the support is fixedly connected to the bracket.

[0008] Furthermore, the pneumatic clamping assembly includes a carrier plate, a clamping cylinder, and a clamping plate. One end of the carrier plate is fixedly connected to one end of the rotating shaft, the clamping plate is located at the other end of the carrier plate, and the clamping cylinder is fixedly disposed on one side of the carrier plate with its output shaft fixedly connected to the clamping plate.

[0009] Furthermore, a limiting groove is provided at the other end of the carrier plate, and a guide groove is provided on one side of the carrier plate, with one end communicating with the limiting groove. The clamping plate is slidably disposed in the guide groove and a connecting plate that is fixedly connected to the output shaft of the clamping cylinder is fixedly connected to one side of the clamping plate.

[0010] Furthermore, the bracket includes a base plate and two upright plates fixedly mounted on the top wall of the base plate. A positioning platform is fixedly connected to the top of the upright plates. The rotating shaft passes through the positioning platform. The bottom wall of the support is fixedly connected to the top wall of the base plate.

[0011] Furthermore, an intermediate shaft is provided above the base plate, and the intermediate shaft is rotatably connected to two upright plates. The two ends of the intermediate shaft are respectively connected to a synchronous belt drive group one and two rotating shafts. A servo motor one is fixedly connected to one side of the support, and the servo motor one is connected to the intermediate shaft through a synchronous belt drive group two.

[0012] Furthermore, a second servo motor is fixedly installed inside the support, and the output shaft and transmission shaft of the second servo motor are fixedly connected.

[0013] Furthermore, the tray has a rectangular plate structure, and corner stops located at the corners are fixedly connected to the top wall of the tray.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, two rotating shafts are provided, and the opposite ends of the two rotating shafts are connected to a pneumatic clamping assembly. When the pneumatic clamping assembly clamps and flips the hexahedral workpiece, it can display the two large faces of the hexahedral workpiece in front of the lens of the CCD camera. The CCD camera can quickly detect the appearance of the front and back of the hexahedral workpiece without the need for manual flipping of the hexahedral workpiece, thereby improving detection efficiency and reducing the cost of manual input.

[0016] 2. In this utility model, a rotatable pallet and a transmission shaft and servo motor for controlling the rotation of the pallet are provided. When the pallet rotates, the hexahedral workpiece on it rotates accordingly. The CCD camera located on one side of the hexahedral workpiece can capture and detect the outer peripheral wall of the hexahedral workpiece without the need for a large movement of the robotic arm, thus reducing the space occupied by the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the CCD inspection device for the appearance of a hexahedral workpiece according to this utility model;

[0018] Figure 2 This is a schematic diagram of the pneumatic clamping assembly of the CCD inspection device for the appearance of a hexahedral workpiece according to this utility model;

[0019] Figure 3 for Figure 1 The main view.

[0020] In the diagram: 1. Bracket; 11. Base plate; 12. Vertical plate; 121. Positioning platform; 2. Rotating shaft; 3. Pneumatic clamping assembly; 31. Carrier plate; 311. Limiting groove; 312. Guide groove; 32. Clamping cylinder; 33. Clamping plate; 331. Connecting plate; 4. Support plate; 42. Angle stop; 5. Support; 6. Drive shaft; 7. Intermediate shaft; 8. Synchronous belt drive assembly one; 9. Servo motor one; 101. Synchronous belt drive assembly two; 102. Servo motor two. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: a CCD inspection device for the appearance of a hexahedral workpiece, including a rotating inspection platform. The rotating inspection platform includes a bracket 1, and two coaxial rotating shafts 2 that can rotate synchronously and in the same direction are arranged above the bracket 1. Specifically, the bracket 1 includes a base plate 11 and two upright plates 12 fixedly arranged on the top wall of the base plate 11. A positioning table 121 is fixedly connected to the top of the upright plate 12. The rotating shafts 2 are arranged through the positioning table 121. A bearing is arranged inside the positioning table 121 and sleeved on the outside of the rotating shafts 2. The rotating shafts 2 are arranged horizontally. A pneumatic clamping group 3 is connected to the opposite ends of the two rotating shafts 2. The pneumatic clamping group 3 is used to clamp the hexahedral workpiece. When the two rotating shafts 2 rotate synchronously in the same direction, they can drive the hexahedral workpiece to rotate, which facilitates the external robotic arm to hold a CCD camera to inspect the two large faces of the hexahedral workpiece.

[0023] The pneumatic clamping assembly 3 includes a carrier plate 31, a clamping cylinder 32, and a clamping plate 33. One end of the carrier plate 31 is fixedly connected to one end of the rotating shaft 2, and the clamping plate 33 is located at the other end of the carrier plate 31. The clamping cylinder 32 is fixedly installed on one side of the carrier plate 31 and its output shaft is fixedly connected to the clamping plate 33. The clamping cylinder 32 provides driving force to the movement of the clamping plate 33.

[0024] Furthermore, a limiting groove 311 is provided at the other end of the carrier plate 31. The width of the limiting groove 311 is the same as the width of the hexahedral workpiece. A guide groove 312 is provided on one side of the carrier plate 31, with one end communicating with the limiting groove 311. The clamping plate 33 is slidably disposed in the guide groove 312, and a connecting plate 331 fixedly connected to the output shaft of the clamping cylinder 32 is fixedly connected to one side of the clamping plate 33. After the hexahedral workpiece is placed in the limiting groove 311 between the two carrier plates 31, the clamping plate 33 will clamp the hexahedral workpiece placed in the limiting groove 311 when it moves. In specific implementation, a rubber pad is glued to one side of the clamping plate 33 to avoid damage to the hexahedral workpiece during clamping. In use, a pressure sensor can be installed on one side of the clamping plate 33. A clearance notch is provided on one side of the rubber pad for the pressure sensor. The pressure sensor is used to detect the compressive force on the hexahedral workpiece, so that the external controller (PLC) and solenoid valve can accurately control the stroke of the clamping cylinder 32. The pressure sensor and the controller (PLC) are electrically connected.

[0025] In this embodiment, a support plate 4 is disposed below the two rotating shafts 2, and a support 5 is disposed below the support plate 4. A transmission shaft 6 is fixedly connected to the bottom of the support plate 4 and rotatably connected to the top of the support 5. The bottom end of the support 5 is fixedly connected to the bracket 1. Specifically, the bottom wall of the support 5 is fixedly connected to the top wall of the base plate 11. The support plate 4 is used to support the hexahedral workpiece. When the transmission shaft 6 rotates, it can drive the support plate 4 to rotate. When the support plate 4 rotates, it can drive the hexahedral workpiece on it to rotate. When the robot arm holds the CCD camera and is located on one side of the hexahedral workpiece, controlling the rotation of the support plate 4 will cause the four sides of the hexahedral workpiece to be sequentially aligned with the CCD camera without the need for the robot arm to move significantly.

[0026] In this embodiment, an intermediate shaft 7 is provided above the base plate 11. The intermediate shaft 7 is rotatably connected to two upright plates 12. Specifically, bearings sleeved on the outside of the intermediate shaft 7 are fixedly connected to the two upright plates 12. The two ends of the intermediate shaft 7 are respectively connected to the two rotating shafts 2 through a synchronous belt drive group 1 8. When the intermediate shaft 7 rotates, the two rotating shafts 2 rotate synchronously under the drive of the synchronous belt drive group 1 8. The synchronous belt drive group 1 8 adopts a common structure of synchronous belt and synchronous pulley combination. A servo motor 1 9 is fixedly connected to one side of the support 5. The servo motor 1 9 is connected to the intermediate shaft 7 through a synchronous belt drive group 2 101. The synchronous belt drive group 2 101 usually adopts a common structure of synchronous belt and synchronous pulley combination.

[0027] In this embodiment, the pallet 4 is a rectangular plate structure. The top wall of the pallet 4 is fixedly connected with corner stops 42 located at the corners. The corner stops 42 limit the four corners of the hexahedral workpiece. When the pallet 4 rotates, the corner stops 42 can effectively prevent the hexahedral workpiece from shifting.

[0028] Working Principle: This device requires the use of an external robotic arm. The robotic arm's end arm is equipped with a gripper and a CCD camera. The gripper is used to pick up and place hexahedral workpieces. Servo motor 9 and servo motor 102 are electrically connected to a PLC. The robotic arm is also electrically connected to a PLC. In use, the robotic arm uses the gripper to pick up the hexahedral workpiece and places it in the limiting groove 311 between two carrier plates 31. The PLC controls the two clamping cylinders 32 to move synchronously, causing the clamping plates 33 on the two carrier plates 31 to move towards each other and clamp the hexahedral workpiece. The robotic arm moves the CCD camera directly above the hexahedral workpiece to capture and inspect its front appearance. The PLC starts servo motor 9, and the synchronous belt drive group 101 drives the intermediate shaft 7 to rotate. The intermediate shaft 7 drives the two rotating shafts 2 to rotate synchronously via the synchronous belt drive group 8. The hexahedral workpiece is flipped, with its reverse side facing the CCD camera. The CCD camera captures and detects the reverse side of the workpiece. After both sides of the workpiece are detected, the robotic arm grips the workpiece with its pick-and-place grippers. Then, the controller (PLC) controls the clamping cylinder 32 to move the clamping plates 33 in the opposite direction, releasing the workpiece. The robotic arm places the gripped workpiece on the pallet 4 and moves the CCD camera to one side of the workpiece. The controller (PLC) then controls the servo motor 102 to start, causing the drive shaft 6 to rotate intermittently, and the pallet 4 to rotate intermittently. The outer periphery of the workpiece is captured and detected by the CCD camera. After detection, the robotic arm removes the workpiece from the pallet 4 and places it on a turnover box. The turnover boxes are divided into good product boxes and defective product boxes. The robotic arm places the hexahedral workpiece in the corresponding good product box or defective product box according to the detection results of the CCD camera.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CCD inspection device for the appearance of a hexahedral workpiece, comprising a rotating inspection platform, characterized in that, The rotating detection platform includes a bracket (1), with two coaxial rotating shafts (2) arranged above the bracket (1) and capable of rotating synchronously and in the same direction. A pneumatic clamping assembly (3) is connected to the opposite ends of the two rotating shafts (2). A support plate (4) is arranged below the two rotating shafts (2). A support (5) is arranged below the support plate (4). A transmission shaft (6) is fixedly connected to the bottom of the support plate (4) and rotatably connected to the top of the support (5). The bottom end of the support (5) is fixedly connected to the bracket (1).

2. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 1, characterized in that: The pneumatic clamping assembly (3) includes a carrier plate (31), a clamping cylinder (32) and a clamping plate (33). One end of the carrier plate (31) is fixedly connected to one end of the rotating shaft (2), and the clamping plate (33) is located at the other end of the carrier plate (31). The clamping cylinder (32) is fixedly installed on one side of the carrier plate (31) and its output shaft is fixedly connected to the clamping plate (33).

3. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 2, characterized in that: The other end of the carrier plate (31) is provided with a limiting groove (311), and a guide groove (312) is provided on one side of the carrier plate (31) with one end connected to the limiting groove (311). The clamping plate (33) is slidably disposed in the guide groove (312) and a connecting plate (331) fixedly connected to the output shaft of the clamping cylinder (32) is fixedly connected to one side of it.

4. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 1, characterized in that: The bracket (1) includes a base plate (11) and two upright plates (12) fixedly installed on the top wall of the base plate (11). A positioning platform (121) is fixedly connected to the top of the upright plate (12). The rotating shaft (2) is installed through the positioning platform (121). The bottom wall of the support (5) is fixedly connected to the top wall of the base plate (11).

5. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 4, characterized in that: An intermediate shaft (7) is provided above the base plate (11). The intermediate shaft (7) is rotatably connected to two upright plates (12). The two ends of the intermediate shaft (7) are connected to the synchronous belt drive group one (8) and two rotating shafts (2) respectively. A servo motor one (9) is fixedly connected to one side of the support (5). The servo motor one (9) is connected to the intermediate shaft (7) through the synchronous belt drive group two (101).

6. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 1, characterized in that: A servo motor 2 (102) is fixedly installed inside the support (5), and the output shaft of the servo motor 2 (102) is fixedly connected to the transmission shaft (6).

7. The CCD inspection device for the appearance of a hexahedral workpiece according to claim 1, characterized in that: The tray (4) is a rectangular plate structure, and the top wall of the tray (4) is fixedly connected with corner stops (42) located at the corners.

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