Spraying device for fluorescent penetrant detection

Abstract

The utility model discloses a spraying device for fluorescent penetrant detection, which comprises a bearing frame, a spraying material barrel is mounted on the bearing frame, and a spraying control mechanism and a spraying angle adjusting mechanism are connected below the spraying material barrel; the spraying control mechanism comprises a regulation and control bin communicated with the bottom of the spraying material barrel, a PLC is integrally arranged on the side wall of the regulation and control bin, the regulation and control bin is tightly connected with a spraying pipe through a communicating pipe, the spraying pipe is of a special structure with the middle being annularly opened, and a plurality of sets of spraying heads are arranged on the lower portion of the spraying pipe in a communicating mode. The spraying angle adjusting mechanism comprises L-shaped positioning frames installed on the two side walls of the bearing frame correspondingly, the spraying angle adjusting mechanism is meshed with a transmission gear at the output end of a control motor through cooperation of the L-shaped positioning frames, a movable shaft, a rotating shaft and the control motor, flexible rotation of the spraying pipe is achieved, the spraying angle can be adjusted according to detection requirements, and the spraying efficiency is improved. And the flexibility and comprehensiveness of spraying operation are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of fluorescent penetrant detection devices, and in particular to a spraying device for fluorescent penetrant detection. Background Technology

[0002] In key aspects of industrial production and product quality control, fluorescent penetrant testing, with its non-destructive testing characteristics, has become an important means of detecting surface and near-surface defects in materials. In the entire testing process, the operation of spraying fluorescent penetrant directly affects the accuracy and reliability of the test results. The ideal spraying effect requires the penetrant to adhere evenly and precisely to the surface of the object being tested, providing a good foundation for subsequent defect identification based on fluorescence display.

[0003] However, traditional fluorescent penetrant testing spraying devices have revealed a series of obvious defects. The spray head at the bottom of the traditional spray tube is usually fixed at a specific position and angle, which can only achieve spraying in a limited direction and range. When faced with objects with complex shapes and varied structures, this fixed spray head is difficult to spray the fluorescent penetrant evenly onto every surface in all directions without dead angles, resulting in many blind spots in the detection and seriously reducing the reliability of the detection results.

[0004] Therefore, we provide a spraying apparatus for fluorescent penetrant detection. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a spraying device for fluorescent penetrant detection, which effectively solves these problems through the adjustable angle of the spray head.

[0006] In view of this, the present invention provides a spraying device for fluorescence penetrant detection, including a support frame, on which a spraying material cylinder is installed, and a spraying control mechanism and a spraying angle adjustment mechanism are connected below the spraying material cylinder;

[0007] The spraying control mechanism includes a control chamber connected to the bottom of the spraying material cylinder. A PLC controller is integrated on the side wall of the control chamber. The control chamber is tightly connected to the spraying pipe through a connecting pipe. The spraying pipe has a special structure with a central ring-shaped opening, and several sets of spraying heads are connected below it.

[0008] The spraying angle adjustment mechanism includes L-shaped positioning frames respectively installed on the two side walls of the support frame. The two L-shaped positioning frames are pivotally connected to a rotating shaft through a movable shaft. The spray pipe is arranged between the two sets of L-shaped positioning frames in a way that rotates synchronously with the rotating shaft, and one end of the rotating shaft is connected to a control motor drive.

[0009] Preferably, each group of spray heads is equipped with a separate control valve, and the independent control valve on each group of spray heads can be electrically connected to the PLC controller integrated into the side wall of the control chamber.

[0010] Preferably, one end of the rotating shaft is provided with a toothed cavity structure, and the output end of the control motor is equipped with a transmission gear. The rotating shaft is meshed with the transmission gear at the output end of the control motor by means of the toothed cavity formed at one end of the shaft.

[0011] Preferably, the support frame is provided with a detachable material positioning platform, and positioning blocks are respectively installed at both ends of the material positioning platform. Through this structural design, when the material is placed on the material positioning platform, the positioning blocks at both ends can effectively position it.

[0012] Preferably, the limiting end faces of the positioning blocks at both ends are provided with protective pads, and the protective pads are specifically made of rubber.

[0013] Preferably, a forward / reverse thread adjustment rod is installed in the side groove of the material positioning platform. The forward / reverse thread adjustment rod is connected to two sets of guide blocks. The two sets of guide blocks are respectively connected to the forward thread section and the reverse thread section of the forward / reverse thread adjustment rod through a threaded engagement. The positioning blocks at both ends are respectively fixedly connected to the corresponding guide blocks.

[0014] Preferably, both the positioning block and the guide block are provided with through holes, and the positioning block and the guide block are installed in a detachable manner by means of a pin.

[0015] Compared with the prior art, the present invention provides a spraying device for fluorescence penetrant detection, which has the following beneficial effects:

[0016] 1. In this utility model, the spraying angle adjustment mechanism, through the cooperation of an L-shaped positioning frame, a movable shaft, a rotating shaft and a control motor, allows the toothed cavity at one end of the rotating shaft to mesh with the transmission gear at the output end of the control motor, thereby enabling the spraying tube to rotate flexibly and adjusting the spraying angle according to the testing requirements, thus improving the flexibility and comprehensiveness of the spraying operation.

[0017] 2. This utility model integrates the control chamber in the spraying control mechanism with the PLC controller, and each spraying head is equipped with an independent control valve and electrically connected to the PLC controller, which can accurately control the amount of sprayed material and the spraying pressure, thus avoiding material waste.

[0018] 3. In this utility model, the positioning platform on the support frame has a positive and negative tooth adjustment rod in the side groove that cooperates with the guide block to adjust the spacing of the positioning blocks, which can adapt to material parts of different sizes. The positioning block and the guide block are detachably connected by a pin, which is convenient for maintenance and replacement.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0021] Figure 2 This is a partial structural diagram of the spraying control mechanism proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the spray pipe, rotating shaft, and control motor proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the material positioning platform structure proposed in this utility model.

[0024] In the diagram: 1. Support frame; 2. Spray material cylinder; 3. Spraying control mechanism; 31. Control chamber; 32. PLC controller; 33. Spray pipe; 34. Spray head; 341. Control valve; 4. Spraying angle adjustment mechanism; 41. L-shaped positioning frame; 411. Movable shaft; 42. Rotating shaft; 43. Control motor; 5. Material positioning platform; 51. Positioning block; 511. Protective pad; 52. Guide block; 53. Positive and negative thread adjustment rod; 54. Pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1: A spraying device for fluorescence penetrant detection, such as... Figures 1-4 As shown, it includes a support frame 1, a spray material cylinder 2 is installed on the support frame 1, a spray control mechanism 3 and a spray angle adjustment mechanism 4 are connected below the spray material cylinder 2;

[0028] The spraying control mechanism 3 includes a control chamber 31 connected to the bottom of the spraying material cylinder 2. A PLC controller 32 is integrated on the side wall of the control chamber 31. The control chamber 31 is closely connected to the spraying pipe 33 through a connecting pipe. The spraying pipe 33 has a special structure with a ring-shaped opening in the middle, and several sets of spraying heads 34 are connected below it.

[0029] The spraying angle adjustment mechanism 4 includes L-shaped positioning frames 41 respectively installed on the two side walls of the support frame 1. The two L-shaped positioning frames 41 are pivotally connected to the rotating shaft 42 through the movable shaft 411. The spray pipe 33 is set between the two sets of L-shaped positioning frames 41 in a way that rotates synchronously with the rotating shaft 42, and one end of the rotating shaft 42 is driven and connected to the control motor 43.

[0030] In use, the workpiece to be tested is placed on the material positioning platform 5 of the support frame 1, and an appropriate amount of fluorescent penetrant is injected into the spray material cylinder 2. The PLC controller 32 is turned on to initialize the entire spraying process. Under the action of gravity, the fluorescent penetrant in the spray material cylinder 2 enters the connecting pipe through the regulating chamber 31 connected to the bottom, and then flows to the spray pipe 33. After the fluorescent penetrant enters the spray pipe 33, since the spray pipe 33 has a central ring-shaped structure, it will be evenly distributed to several sets of spray heads 34 connected below. If it is necessary to perform differentiated spraying on different areas, the control valve 341 on each set of spray heads 34 can be controlled by the PLC controller 32 to precisely adjust the spraying state of each spray head 34. If the workpiece has a complex shape and the spraying angle needs to be adjusted, the control motor 43 is started. The output gear of the control motor 43 rotates, driving the toothed cavity structure at one end of the rotating shaft 42 that meshes with it. This causes the rotating shaft 42 to rotate around the movable shaft 411. Since the spray tube 33 rotates synchronously with the rotating shaft 42, the angle of the spray tube 33 is adjusted, which drives the spray head 34 to change the spraying direction. This allows for comprehensive spraying of different parts of the workpiece, ensuring that the fluorescent penetrant evenly covers the surface of the workpiece. It should be noted that the control chamber 31, PLC controller 32, spray head 34, and control valve 341 installed on the spray head 34 involved in this fluorescent penetrant testing spraying device are all existing mature technologies, and therefore will not be described in detail here.

[0031] like Figures 1-4 As shown, each spray head 34 is equipped with a separate control valve 341. The independent control valve 341 on each spray head 34 can be electrically connected to the PLC controller 32 integrated on the side wall of the control chamber 31. During the spraying process, there may be situations where certain local areas of the workpiece do not need to be sprayed. At this time, the control valve 341 of the corresponding area spray head 34 can be closed by using the PLC controller 32 to stop the spraying operation of that spray head 34. When spraying needs to continue, it can be opened in time to avoid unnecessary spraying and make the spraying process more precise and efficient.

[0032] like Figures 1-4 As shown, one end of the rotating shaft 42 is provided with a toothed cavity structure, and the output end of the control motor 43 is equipped with a transmission gear. The rotating shaft 42 is meshed with the transmission gear at the output end of the control motor 43 through the toothed cavity formed at one end. In use, through the precise control of the control motor 43, combined with the meshing of the transmission gear and the toothed cavity, the rotation angle and speed of the rotating shaft 42 can be precisely adjusted. In the process of fluorescent penetrant detection, the spray tube 33 may need to rotate at different angles and speeds in order to uniformly spray the fluorescent penetrant onto the surface of the object. Precise control can ensure that the rotation of the spray tube 33 meets the detection requirements, thereby improving the accuracy and reliability of the detection.

[0033] Example 2: A spraying device for fluorescence penetrant detection, such as... Figures 1-4 As shown, a detachable material positioning platform 5 is provided on the support frame 1. Positioning blocks 51 are respectively installed at both ends of the material positioning platform 5. Through this structural design, when the material is placed on the material positioning platform 5, the positioning blocks 51 at both ends can effectively position it.

[0034] The positioning blocks 51 at both ends are provided with protective pads 511 on their limiting end faces. The protective pads 511 are specifically made of rubber.

[0035] A forward / reverse thread adjustment rod 53 is installed in the side groove of the material positioning table 5. The forward / reverse thread adjustment rod 53 is connected to two sets of guide blocks 52. The two sets of guide blocks 52 are respectively connected to the forward thread section and the reverse thread section of the forward / reverse thread adjustment rod 53 through threaded engagement. The positioning blocks 51 at both ends are fixedly connected to the corresponding guide blocks 52.

[0036] Both the positioning block 51 and the guide block 52 have reserved through holes, and the positioning block 51 and the guide block 52 can be installed in a detachable manner by means of the pin 54.

[0037] In use, place the material to be tested stably on the material positioning table 5, rotate the forward and reverse tooth adjustment rod 53 to make the two sets of guide blocks 52 move the positioning blocks 51 towards each other until the protective pads 511 on the positioning blocks 51 at both ends gently contact the two end faces of the material. The protective pads 511 are made of rubber, which can prevent the positioning blocks 51 from scratching or damaging the surface of the material while positioning it, thus achieving effective positioning of the material. When it is necessary to replace the positioning blocks 51 of different specifications or to clean the positioning blocks 51 and guide blocks 52, the pin 54 can be pulled out to remove the positioning blocks 51 from the guide blocks 52. After completing the corresponding operation, the positioning blocks 51 can be reinstalled through the pin 54.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spraying device for fluorescence penetrant detection, comprising a support frame (1), a spraying material cylinder (2) mounted on the support frame (1), and a spraying control mechanism (3) and a spraying angle adjustment mechanism (4) connected below the spraying material cylinder (2), characterized in that: The spraying control mechanism (3) includes a control chamber (31) connected to the bottom of the spraying material cylinder (2). A PLC controller (32) is integrated on the side wall of the control chamber (31). The control chamber (31) is closely connected to the spraying pipe (33) through a connecting pipe. The spraying pipe (33) has a special structure with a central ring, and several spraying heads (34) are connected below it. The spraying angle adjustment mechanism (4) includes L-shaped positioning frames (41) respectively installed on the two side walls of the support frame (1). The two L-shaped positioning frames (41) are pivotally connected to a rotating shaft (42) via a movable shaft (411). The spray pipe (33) is arranged between the two sets of L-shaped positioning frames (41) in a way that rotates synchronously with the rotating shaft (42). One end of the rotating shaft (42) is driven and connected to the control motor (43).

2. The spraying device for fluorescence penetrant detection according to claim 1, characterized in that, Each spray head (34) is equipped with a control valve (341), and the independent control valve (341) on each spray head (34) can be electrically connected to the PLC controller (32) integrated on the side wall of the control chamber (31).

3. The spraying device for fluorescence penetrant detection according to claim 1, characterized in that, One end of the rotating shaft (42) is provided with a toothed cavity structure, and the output end of the control motor (43) is equipped with a transmission gear. The rotating shaft (42) is meshed with the transmission gear at the output end of the control motor (43) by means of the toothed cavity formed at one end of it.

4. The spraying device for fluorescence penetrant detection according to claim 1, characterized in that, The support frame (1) is provided with a detachable material positioning platform (5). The two ends of the material positioning platform (5) are respectively equipped with positioning blocks (51). Through this structural design, when the material is placed on the material positioning platform (5), the positioning blocks (51) at both ends can effectively position it.

5. The spraying device for fluorescence penetrant detection according to claim 4, characterized in that, The positioning blocks (51) at both ends are provided with protective pads (511) on their limiting end faces. The protective pads (511) are specifically made of rubber.

6. The spraying device for fluorescence penetrant detection according to claim 4, characterized in that, A forward / reverse thread adjustment rod (53) is installed in the side groove of the material positioning platform (5). The forward / reverse thread adjustment rod (53) is connected to two sets of guide blocks (52). The two sets of guide blocks (52) are respectively connected to the forward thread section and the reverse thread section of the forward / reverse thread adjustment rod (53) through threaded engagement. The positioning blocks (51) at both ends are respectively fixedly connected to the corresponding guide blocks (52).

7. The spraying device for fluorescence penetrant detection according to claim 6, characterized in that, Both the positioning block (51) and the guide block (52) have reserved insertion holes, and the positioning block (51) and the guide block (52) are installed in a detachable manner by means of a pin (54).

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