Clamp for visual inspection equipment

Abstract

The utility model discloses a fixture for visual inspection equipment, which comprises a U-shaped base, fixing plates are symmetrically and fixedly mounted on two sides of the middle of the base, a fixing ring is fixedly mounted between the two fixing plates, and a positioning arc block is fixedly mounted in the middle of the upper surface of each fixing plate. A rotating ring is rotatably installed between the two positioning arc blocks, rotating rods are rotatably installed in the middle of the rotating ring in an annular array mode through shaft pins with the central axis of the rotating ring as the axis, welded pipe fittings are vertically placed in a fixing ring, the bottoms of the pipe fittings are placed on a supporting table, the rotating ring is driven to rotate through a first hydraulic rod, and the rotating ring is driven to rotate through a second hydraulic rod. The rotating rods on the rotating ring are limited by the positioning rods to rotate, then the range of the size of a circle formed by the three extrusion wheels is changed, pipe fittings with different diameters can be fixed, the pipe fittings are vertically placed in the fixing ring, it can be guaranteed that the pipe fittings are vertically placed, and the problem that the pipe fittings incline is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for visual inspection equipment. Background Art

[0002] Visual inspection refers to the process of converting the captured target into an image signal through a machine vision product, transmitting it to a dedicated image processing system, and converting it into a digital signal based on pixel distribution, brightness, color and other information. The image system performs various operations on these signals to extract the target's features, and then controls the operation of the equipment on site based on the results of the judgment. For the inspection of some pipe fittings after welding, the pipe fittings need to be fixed on a fixture and the welds of the pipe fittings need to be inspected using a visual camera.

[0003] When fixing pipe fittings, existing clamps basically fix the pipe fittings rigidly by bolts, etc., and can only fix pipe fittings of specified sizes. For some clamps that can fix pipe fittings of different diameters, some use clamps connected by springs to fix pipes of different diameters. However, this method will cause different deformation amounts of springs at different positions, causing the pipe fittings to be uneven and affecting the measurement. Utility Model Content

[0004] The purpose of the utility model is to provide a fixture for visual inspection equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for visual inspection equipment, comprising a base, the base is U-shaped, fixed plates are symmetrically fixedly installed on both sides of the middle part of the base, a fixed ring is fixedly installed between the two fixed plates, a positioning arc block is fixedly installed in the middle of the upper surface of the fixed plate, a swivel is rotatably installed between the two positioning arc blocks, a rotating rod is rotatably installed in the middle part of the swivel through an axle pin ring array with the central axis of the swivel as the axis, an extrusion wheel is installed at the end of the rotating rod away from the swivel, the size range of the circle formed by the three extrusion wheels can be changed by the rotation of the swivel and the misalignment between the fixed ring, which is used to fix pipes of different diameters, a visual camera for visual inspection of the pipes is installed on one side of the base, and the visual camera is arranged above the top of the swivel.

[0006] As a further preferred embodiment of the present technical solution, a first hydraulic rod is rotatably installed on one side of the base via an axle pin, and the movable end of the first hydraulic rod is rotatably connected to the lower surface of the swivel ring via an axle pin. A positioning rod is fixedly installed in a ring array in the middle part of the fixed ring with the central axis of the fixed ring as the axis, and a positioning groove is opened in the middle part of the swivel rod, which is slidably connected to the positioning rod.

[0007] As a further preferred embodiment of the present technical solution, the positioning groove and the positioning rod are slidably arranged in close fit.

[0008] As a further preferred embodiment of the present technical solution, a second hydraulic rod is fixedly installed on the bottom of the base, a lifting plate is fixedly installed on the movable end of the second hydraulic rod, and a support platform for supporting the pipe fittings is fixedly installed on the middle part of the upper surface of the lifting plate.

[0009] As a further preferred embodiment of the technical solution, limiting holes are symmetrically provided at both ends of the lifting plate, limiting rods are symmetrically fixedly installed on both sides of the base, and the limiting rods are slidably connected to the limiting holes.

[0010] As a further preferred embodiment of the present technical solution, a fixed frame is fixedly installed on one side of the base, a third hydraulic rod is fixedly installed on the middle part of one side of the fixed frame, the moving end of the third hydraulic rod passes through the fixed frame and is fixedly installed on a moving seat, a motor is fixedly installed on the bottom of the moving seat, the output end of the motor passes through the moving seat and is fixedly installed with a rubber roller, and the output end of the motor is rotatably arranged with the moving seat.

[0011] As a further preferred embodiment of the present technical solution, a fixed block is symmetrically fixedly installed on the upper surface of the fixed frame, a sliding hole is opened on the top of the fixed block, a sliding rod is slidably installed inside the sliding hole, a mounting table is fixedly installed between the ends of the two sliding rods, and the upper surface of the mounting table is fixedly connected to the visual camera.

[0012] The utility model provides a fixture for visual inspection equipment, which has the following beneficial effects:

[0013] (1) The utility model places the welded pipe vertically inside the fixed ring, places the bottom of the pipe on the support platform, drives the rotating ring to rotate through the first hydraulic rod, and the rotating rod on the rotating ring will rotate under the restriction of the positioning rod, thereby changing the size range of the circle formed by the three extrusion wheels, so that pipes of different diameters can be fixed.

[0014] (2) The utility model can ensure the vertical placement of the pipe fitting by vertically placing the pipe fitting inside the fixing ring, thereby preventing the pipe fitting from tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the partial explosion structure of the utility model;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model;

[0019] In the figure: 1. base; 2. fixing plate; 3. fixing ring; 4. positioning arc block; 5. swivel; 6. swivel rod; 7. extrusion wheel; 8. visual camera; 9. first hydraulic rod; 10. positioning rod; 11. positioning groove; 12. second hydraulic rod; 13. lifting plate; 14. support table; 15. limiting hole; 16. limiting rod; 17. fixing frame; 18. third hydraulic rod; 19. moving seat; 20. motor; 21. rubber roller; 22. fixing block; 23. sliding hole; 24. sliding rod; 25. mounting table. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a clamp for visual inspection equipment includes a base 1, which is U-shaped, with fixed plates 2 symmetrically fixedly installed on both sides of the middle of the base 1, a fixed ring 3 fixedly installed between the two fixed plates 2, a positioning arc block 4 fixedly installed in the middle of the upper surface of the fixed plate 2, a swivel 5 rotatably installed between the two positioning arc blocks 4, a rotating rod 6 rotatably installed in the middle of the swivel 5 through an axle pin ring array with the central axis of the swivel 5 as the axis, an extrusion wheel 7 is installed at the end of the rotating rod 6 away from the swivel 5, the size range of the circle formed by the three extrusion wheels 7 can be changed by the rotation of the swivel 5 and the misalignment between the fixed ring 3, which is used to fix pipes of different diameters, and a visual camera 8 for visual inspection of pipes is installed on one side of the base 1, and the visual camera 8 is arranged above the top of the swivel 5.

[0022] like Figures 1 to 4 As shown, a first hydraulic rod 9 is rotatably installed on one side of the base 1 through an axle pin, and the movable end of the first hydraulic rod 9 is rotatably connected to the lower surface of the swivel ring 5 through an axle pin. A positioning rod 10 is fixedly installed in a ring array in the middle of the fixed ring 3 with the central axis of the fixed ring 3 as the axis. A positioning groove 11 is opened in the middle of the swivel rod 6, and the positioning groove 11 is slidably connected to the positioning rod 10.

[0023] The first hydraulic rod 9 drives the swivel 5 to rotate, and the swivel rod 6 on the swivel 5 is restricted by the positioning rod 10 to rotate, thereby changing the size range of the circle formed by the three extrusion wheels 7, so that pipes with different diameters can be fixed.

[0024] like Figures 1 to 4 As shown, the positioning groove 11 and the positioning rod 10 are tightly fitted and slidably arranged.

[0025] The positioning rod 10 perfectly squeezes the positioning groove 11 on the rotating rod 6 to prevent the rotating rod 6 from swinging randomly.

[0026] like Figures 1 to 4 As shown, a second hydraulic rod 12 is fixedly mounted on the bottom of the base 1, a lifting plate 13 is fixedly mounted on the movable end of the second hydraulic rod 12, and a supporting platform 14 for supporting pipe fittings is fixedly mounted on the middle of the upper surface of the lifting plate 13.

[0027] When the height of the weld is not opposite to the visual camera 8 , the second hydraulic rod 12 drives the lifting plate 13 to move up and down, so that the pipe can be lifted and lowered to make the height of the weld correspond to the visual camera 8 .

[0028] like Figures 1 to 4 As shown, the two ends of the lifting plate 13 are symmetrically provided with limiting holes 15 , and the two sides of the base 1 are symmetrically fixedly installed with limiting rods 16 , and the limiting rods 16 are slidably connected with the limiting holes 15 .

[0029] When the lifting plate 13 is lifted or lowered, the lifting of the lifting plate 13 and the lifting of the pipe fittings can be stably controlled.

[0030] like Figures 1 to 4 As shown, a fixing frame 17 is fixedly installed on one side of the base 1, a third hydraulic rod 18 is fixedly installed on the middle part of one side of the fixing frame 17, a moving end of the third hydraulic rod 18 passes through the fixing frame 17 and is fixedly installed with a moving seat 19, a motor 20 is fixedly installed on the bottom of the moving seat 19, an output end of the motor 20 passes through the moving seat 19 and is fixedly installed with a rubber roller 21, and the output end of the motor 20 is rotatably arranged with the moving seat 19.

[0031] The third hydraulic rod 18 drives the movable seat 19 to move, and the rubber roller 21 will fit and squeeze the pipe. The motor 20 drives the rubber roller 21 to rotate, and the friction between the rubber roller 21 and the pipe drives the pipe to rotate, thereby realizing all-round detection of the weld of the pipe.

[0032] like Figures 1 to 4 As shown, a fixed block 22 is symmetrically fixedly installed on the upper surface of the fixed frame 17, a sliding hole 23 is opened on the top of the fixed block 22, a sliding rod 24 is slidably installed inside the sliding hole 23, and a mounting platform 25 is fixedly installed between the ends of the two sliding rods 24, and the upper surface of the mounting platform 25 is fixedly connected to the visual camera 8.

[0033] The visual camera 8 on the mounting platform 25 is slid along the track of the sliding hole 23, so that the visual camera 8 can be brought close to the pipe fitting to detect the weld of the pipe fitting.

[0034] The utility model provides a fixture for visual inspection equipment, and the specific working principle is as follows:

[0035] When the device is in use, the welded pipe fitting is placed vertically inside the fixing ring 3, and the bottom of the pipe fitting is placed on the supporting platform 14. When the height of the weld is not opposite to the visual camera 8, the lifting plate 13 is driven to rise and fall by the second hydraulic rod 12, and the pipe fitting can be lifted and lowered so that the height of the weld corresponds to the visual camera 8. Then, the rotating ring 5 is driven to rotate by the first hydraulic rod 9, and the rotating rod 6 on the rotating ring 5 will rotate under the restriction of the positioning rod 10, thereby changing the size range of the circle formed by the three extrusion wheels 7, so that pipe fittings of different diameters can be fixed. Then, the visual camera 8 on the mounting platform 25 is slid along the trajectory of the sliding hole 23, and the visual camera 8 can be brought close to the pipe fitting to detect the weld of the pipe fitting. When the pipe fitting needs to be rotated, the moving seat 19 is driven to move by the third hydraulic rod 18, and the rubber roller 21 will fit and extrude the pipe fitting. The rubber roller 21 is driven to rotate by the motor 20, and the friction between the rubber roller 21 and the pipe fitting will drive the pipe fitting to rotate, thereby realizing all-round detection of the weld of the pipe fitting.

[0036] 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 fixture for visual inspection equipment, characterized in that: The invention comprises a base (1), wherein the base (1) is arranged in a U shape, and fixed plates (2) are symmetrically fixedly installed on both sides of the middle of the base (1), a fixed ring (3) is fixedly installed between the two fixed plates (2), a positioning arc block (4) is fixedly installed in the middle of the upper surface of the fixed plate (2), a rotating ring (5) is rotatably installed between the two positioning arc blocks (4), a rotating rod (6) is rotatably installed in the middle of the rotating ring (5) through axle pins in an annular array with the central axis of the rotating ring (5) as the axis, and an extrusion wheel (7) is installed at one end of the rotating rod (6) away from the rotating ring (5), and the size range of the circle formed by the three extrusion wheels (7) can be changed by the rotation of the rotating ring (5) and the misalignment between the fixed ring (3), so as to fix pipes of different diameters, and a visual camera (8) for visually inspecting the pipes is installed on one side of the base (1), and the visual camera (8) is arranged above the top of the rotating ring (5).

2. A fixture for visual inspection equipment according to claim 1, characterized in that: A first hydraulic rod (9) is rotatably mounted on one side of the base (1) via an axle pin, and a movable end of the first hydraulic rod (9) is rotatably connected to the lower surface of the rotating ring (5) via an axle pin. A positioning rod (10) is fixedly mounted in a ring array in the middle of the fixed ring (3) with the central axis of the fixed ring (3) as the axis. A positioning groove (11) is provided in the middle of the rotating rod (6), and the positioning groove (11) is slidably connected to the positioning rod (10).

3. A fixture for visual inspection equipment according to claim 2, characterized in that: The positioning groove (11) and the positioning rod (10) are tightly fitted and slidably arranged.

4. A fixture for visual inspection equipment according to claim 2, characterized in that: A second hydraulic rod (12) is fixedly mounted on the bottom of the base (1), a lifting plate (13) is fixedly mounted on the movable end of the second hydraulic rod (12), and a support platform (14) for supporting the pipe fitting is fixedly mounted on the middle of the upper surface of the lifting plate (13).

5. A fixture for visual inspection equipment according to claim 4, characterized in that: The two ends of the lifting plate (13) are symmetrically provided with limiting holes (15), and the two sides of the base (1) are symmetrically fixedly installed with limiting rods (16), and the limiting rods (16) are slidably connected to the limiting holes (15).

6. A fixture for visual inspection equipment according to claim 4, characterized in that: A fixing frame (17) is fixedly mounted on one side of the base (1), a third hydraulic rod (18) is fixedly mounted on the middle part of one side of the fixing frame (17), a moving end of the third hydraulic rod (18) passes through the fixing frame (17) and is fixedly mounted on a moving seat (19), a motor (20) is fixedly mounted on the bottom of the moving seat (19), an output end of the motor (20) passes through the moving seat (19) and is fixedly mounted on a rubber roller (21), and the output end of the motor (20) is rotatably arranged with the moving seat (19).

7. A fixture for visual inspection equipment according to claim 6, characterized in that: A fixing block (22) is symmetrically fixedly installed on the upper surface of the fixing frame (17), a sliding hole (23) is opened on the top of the fixing block (22), a sliding rod (24) is slidably installed inside the sliding hole (23), a mounting platform (25) is fixedly installed between the ends of the two sliding rods (24), and the upper surface of the mounting platform (25) is fixedly connected to the visual camera (8).

Images