Electric spark leak detection instrument for metal pipe coating detection

Abstract

The utility model discloses an electric spark leak hunting instrument used for metal pipe coating detection, comprising a machine table, a fixing assembly used for fixing a pipe is arranged on the machine table, a moving assembly is movably arranged on the machine table, and an electric spark leak hunting assembly used for carrying out electric spark detection on the surface of the pipe is arranged on the moving assembly. The moving assembly is movably arranged along the axis of the pipe relative to the machine table. The fixing assembly can be used for fixing the pipe so as to position the pipe, and under the action of the moving assembly, the electric spark leak detection assembly can move along the pipe so as to discharge electricity to the surface of the pipe through the electric spark measurement assembly and detect defects of a coating on the surface of the pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe production detection, in particular to an electric spark leak detection instrument used for metal pipe coating detection. Background Art

[0002] Existing technologies, such as the Chinese utility model patent document with publication number CN211652652U, disclose a highly safe electric spark leak detector, which belongs to the field of electric spark detection technology. The technical problem to be solved is to use mechanical means to make the carbon brush slowly and evenly brush across the surface of the object to be tested for detection. The adopted solution is: the main unit is fixed above the horizontal bracket, and vertical brackets are fixed at both ends of the horizontal bracket. The lower ends of the vertical brackets are provided with bases, which are arranged perpendicular to the horizontal brackets. The vertical brackets can move back and forth relative to the bases. The transverse rod is slidably arranged on the transverse bracket, the upper end of the telescopic rod is fixed to the transverse rod, and the lower end of the telescopic rod is fixed with a conductive rod, which is electrically connected to the high-voltage output interface on the main unit, the lower end of the conductive rod is fixed with a probe, and the lower end of the probe is fixed with a carbon brush.

[0003] Based on the above, existing technologies use carbon brushes to move and inspect the surface of an object to be tested. However, these technologies are not suitable for inspecting coatings on pipe surfaces, cannot secure the pipe, and their carbon brush configuration cannot inspect cylindrical surfaces. Further improvements are needed. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electric spark leak detection instrument for detecting coatings on metal pipes.

[0005] An electric spark leak detection instrument designed for this purpose for detecting coatings on metal pipes includes a machine platform, a fixed component for fixing the pipe is provided on the machine platform, a movable component is movably provided on the machine platform, and an electric spark leak detection component for performing electric spark detection on the surface of the pipe is provided on the movable component. The movable component is movably arranged relative to the machine platform along the axis of the pipe.

[0006] Preferably, the fixing assembly includes conical fixers and supporting blocks spaced apart on the left and right sides. The supporting blocks are provided with receiving grooves, and the pipes are placed in the receiving grooves for positioning.

[0007] Preferably, a fixing seat is provided on the machine platform, and the conical fixture is fixedly installed on the fixing seat.

[0008] Preferably, the moving assembly includes a moving seat, the machine platform is provided with a slide rail parallel to the axis of the pipe, and the moving seat is slidably arranged on the slide rail;

[0009] A first motor is provided on the machine platform, a motor shaft of the first motor is connected to a screw, a screw nut is provided on the movable seat, and the screw nut is threadedly connected to the screw.

[0010] Preferably, the spark leak detection assembly includes cylinders spaced apart on the left and right sides of the movable seat, the cylinders are connected to a connecting plate, the connecting plate is mounted with an arc-shaped plate, and carbon brushes are arranged along an arc array on the arc-shaped plate.

[0011] Preferably, the accommodating groove is in a V-shaped structure with a larger upper portion and a smaller lower portion.

[0012] Compared to the prior art, the present invention includes a machine platform, which is provided with a fixed assembly for securing a pipe, a movable assembly movably mounted on the machine platform, and a spark detection assembly mounted on the movable assembly for performing spark detection on the pipe surface. The movable assembly is movable relative to the machine platform along the axis of the pipe. The fixed assembly is used to secure the pipe for easy positioning. The spark detection assembly, under the action of the movable assembly, can move along the pipe, discharging discharges from the spark measurement assembly to the pipe surface, thereby detecting defects in the coating on the pipe surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the three-dimensional structural diagrams of the present utility model;

[0014] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the present utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] See also Figure 1-Figure 3 A spark leak detection instrument for detecting coatings on metal pipes includes a machine platform 10, on which a fixed component 20 for fixing a pipe 100 is provided, a movable component 40 is movably provided on the machine platform 10, and a spark leak detection component 30 for performing spark detection on the surface of the pipe 100 is provided on the movable component 40, and the movable component 40 is movably provided relative to the machine platform 10 along the axis of the pipe 100.

[0018] Based on the above embodiment, the set fixing component can be used to fix the pipe to facilitate positioning of the pipe. Under the action of the moving component, the electric spark leak detection component can move along the pipe to discharge to the surface of the pipe through the electric spark measurement component to detect defects in the coating on the surface of the pipe.

[0019] See also Figure 1 and Figure 2 The fixing assembly 20 includes a conical fixer 230 and a supporting block 210 that are spaced apart on the left and right sides. The supporting block 210 is provided with a receiving groove 211, and the pipe 100 is placed in the receiving groove 211 to achieve positioning.

[0020] The cooperation between the conical fixture 230 and the receiving groove 211 can fix pipes of different diameters. First, the pipe 100 is placed in the receiving groove 211, and then one side of the pipe 100 is inserted and fixed with the conical fixture 230.

[0021] See also Figure 1 The platform 10 is provided with a fixing seat 220 , and the conical fixture 230 is fixedly mounted on the fixing seat 220 .

[0022] See also Figure 1 The moving assembly 40 includes a moving seat 410 , and the platform 10 is provided with a slide rail 110 parallel to the axis of the pipe 100 , and the moving seat 410 is slidably provided on the slide rail 110 ;

[0023] The machine platform 10 is provided with a first motor 420 , the motor shaft of the first motor 420 is connected to a screw rod 430 , and the movable base 410 is provided with a screw nut 400 , which is threadedly connected to the screw rod 430 .

[0024] Under the action of the first motor 420, it drives the screw rod 430 to rotate, thereby driving the screw nut 400 to drive the movable seat 410 to move along the axis direction of the screw rod 430. The first motor 420 can adjust the moving direction by rotating forward and backward.

[0025] See also Figure 1 The spark leak detection assembly 30 includes a cylinder 310 arranged on a movable seat 410 with left and right intervals. The cylinder 310 is connected to a connecting plate 320, and the connecting plate 320 is installed with an arc-shaped plate 330. The arc-shaped plate 330 is provided with carbon brushes 340 along an arc array.

[0026] Furthermore, the two left and right arc-shaped plates 330 enclose a circle, and the pipe 100 is located in the circle when being inspected.

[0027] The function of the air cylinder 310 is to adjust the distance between the two curved plates 330 so as to facilitate the assembly of the pipe 100 between the two curved plates 330 or the removal of the pipe 100 from between the two curved plates 330. This arrangement can fully detect cylindrical pipes 100.

[0028] See also Figure 1The accommodating groove 211 is in a V-shaped structure with a larger upper portion and a smaller lower portion.

[0029] In the present invention, the carbon brush 340 is connected to an existing spark detector, which emits a DC high voltage electricity through the carbon brush. When the carbon brush passes through a defective coating surface, the instrument will automatically sound and light an alarm.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An electric spark leak detection instrument for detecting coatings on metal pipes, comprising a machine (10), characterized in that: The machine (10) is provided with a fixing component (20) for fixing the pipe (100), the machine (10) is movably provided with a moving component (40), the moving component (40) is provided with an electric spark leak detection component (30) for performing electric spark detection on the surface of the pipe (100), and the moving component (40) is movably provided relative to the machine (10) along the axis of the pipe (100).

2. The spark leak detection instrument for metal pipe coating detection according to claim 1, characterized in that: The fixing assembly (20) comprises conical fixers (230) and a supporting block (210) arranged at intervals on the left and right sides. The supporting block (210) is provided with a receiving groove (211), and the pipe (100) is placed in the receiving groove (211) to achieve positioning.

3. The spark leak detection instrument for metal pipe coating detection according to claim 2, characterized in that: A fixing seat (220) is provided on the machine platform (10), and the cone holder (230) is fixedly mounted on the fixing seat (220).

4. The spark leak detection instrument for metal pipe coating detection according to claim 1, characterized in that: The moving assembly (40) includes a moving seat (410), the machine (10) is provided with a slide rail (110) parallel to the axis of the pipe (100), and the moving seat (410) is slidably arranged on the slide rail (110); The machine platform (10) is provided with a first motor (420), the motor shaft of the first motor (420) is connected to a screw rod (430), and the movable seat (410) is provided with a screw nut (400), and the screw nut (400) is threadedly connected to the screw rod (430).

5. The spark leak detection instrument for metal pipe coating detection according to claim 4, characterized in that: The spark leak detection assembly (30) comprises cylinders (310) arranged on a movable seat (410) at intervals on the left and right sides, the cylinders (310) being connected to a connecting plate (320), the connecting plate (320) being installed with an arc-shaped plate (330), and carbon brushes (340) being arranged along an arc-shaped array on the arc-shaped plate (330).

6. The spark leak detection instrument for metal pipe coating detection according to claim 2, characterized in that: The accommodating groove (211) is in a V-shaped structure with a larger upper portion and a smaller lower portion.

7. The spark leak detection instrument for metal pipe coating detection according to claim 5, characterized in that: The left and right arc-shaped plates (330) enclose a circle, and the pipe (100) is located in the circle.

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