U-shaped pipe detection device

Abstract

The utility model relates to a U-shaped pipe detection device, relates to a U-shaped pipe production technology, and aims to solve the problems that in the prior art, the detection efficiency of a U-shaped pipe is low, and the size of the U-shaped pipe is disqualified, the U-shaped pipe detection device comprises a workbench, the workbench is provided with a feeding belt used for conveying the U-shaped pipe, and the feeding belt is in timing transmission; a detection head and a detection bent plate are arranged on the two sides of the feeding belt respectively, and the side wall of the detection head and the inner wall of the detection bent plate are arc-shaped walls matched with the axial radian of the U-shaped pipe; one side of the detection head is provided with a first cylinder, and one side of the detection bending plate is provided with a second cylinder. The beneficial effects are that the feeding belt conveys a plurality of U-shaped pipes to a position between the detection head and the detection bending plate, the first cylinder pushes the detection head to move to push the U-shaped pipes into the detection bending plate, a detector checks whether the sizes of the U-shaped pipes are qualified, then the second cylinder pushes the detection bending plate to move, and the first cylinder contracts to drive the detection head to reset. Therefore, one-time detection of the U-shaped pipe is completed, and the U-shaped pipe can be detected quickly and efficiently.

Description

Technical Field

[0001] This application relates to the technical field of U-shaped tube production, and in particular to a U-shaped tube detection device. Background Art

[0002] U-shaped tubes are commonly used in refrigeration equipment such as air conditioners to prevent refrigerant backflow, ensure the normal operation of the compressor, and also isolate impurities such as dust in the pipeline; most U-shaped tubes are made of copper, and copper has good plasticity, which is convenient for processing and forming.

[0003] The U-shaped tube is made by filling a straight copper tube with a support material, then bending the straight copper tube into a U shape, and cutting off the bent U-shaped part to obtain the U-shaped tube. In industrial production, U-shaped tubes are mass-produced, so the dimensional accuracy of U-shaped tubes is prone to errors, and it is necessary to detect whether the dimensions of the U-shaped tubes are qualified; in the prior art, the dimensional detection of U-shaped tubes is mostly manual visual inspection, with low efficiency and prone to unqualified U-shaped tubes in terms of dimensions. Therefore, how to quickly detect the dimensional accuracy of U-shaped tubes is a technical problem existing in the prior art. Summary of the Utility Model

[0004] In order to quickly detect the dimensional accuracy of U-shaped tubes, this application provides a U-shaped tube detection device.

[0005] The U-shaped tube detection device provided by this application adopts the following technical solutions:

[0006] A U-shaped tube detection device includes a workbench. It is characterized in that a feeding belt for conveying U-shaped tubes is arranged on the workbench. The feeding belt is controlled and driven by the cooperation of a motor and a gear set, and the motor rotates regularly to control the feeding belt to drive regularly through the gears; on both sides of the feeding belt, a detection head and a detection bending plate are respectively arranged. The side wall of the detection head and the inner wall of the detection bending plate are both set as arc-shaped walls adapted to the axial arc of the U-shaped tube; on one side of the detection head, a first cylinder is arranged, and the telescopic rod of the first cylinder is connected to the detection head. On one side of the detection bending plate, a second cylinder is arranged, and the telescopic rod of the second cylinder is connected to the detection bending plate.

[0007] Preferably, arc-shaped grooves are arranged on both the side wall of the detection head and the inner wall of the detection bending plate. The arc-shaped grooves are used to adapt to the outer wall of the U-shaped tube diameter; several pressure sensors are embedded in both arc-shaped grooves. A display is arranged on the workbench, and the pressure sensors are electrically connected to the display, and the values of each pressure detector are displayed on the display.

[0008] Preferably, the pressure sensors are also electrically connected to the first cylinder and the second cylinder respectively.

[0009] Preferably, a plurality of positioning grooves for placing U-shaped tubes are provided on the feeding belt. The depth of the positioning grooves is 0.5-1.5 mm. Each time the feeding belt drives, the groove width of the positioning groove is greater than the width of the U-shaped tube to be detected, and it drives a positioning groove to move between the detection head and the detection bending plate. When the detection head pushes the U-shaped tube for detection, it will push the U-shaped tube out of the positioning groove. After detection, the detection bending plate pushes the U-shaped tube back into the positioning groove.

[0010] Preferably, the detection head and the first cylinder, and the detection bending plate and the second cylinder are all detachably connected. Mounting heads are rotatably connected to both the detection head and the detection bending plate. The two mounting heads are respectively threadedly connected to the telescopic rods of the first cylinder and the second cylinder. When it is necessary to detect different U-shaped tubes, the mounting heads on the detection head and the detection bending plate can be screwed to disengage from the telescopic rods of the first cylinder and the second cylinder, and then new detection heads and detection bending plates can be replaced.

[0011] Compared with the prior art, the beneficial effects of the present application are as follows: The U-shaped tube to be detected is conveyed between the detection head and the detection bending plate through the feeding belt. The first cylinder is started to drive the detection head to extend into the U-shaped tube, push the U-shaped tube out of the positioning groove, and further merge with the detection bending plate. After the two sides of the U-shaped tube are in contact with the detection head and the detection bending plate, the first cylinder stops. The pressure sensors on the detection head and the detection bending plate detect, and the pressure detection data is displayed on the display. The fitting degree of the U-shaped tube with the detection head and the detection bending plate is judged by the uniformity of the pressure, so as to detect whether the size is qualified. Description of the Drawings

[0012] Figure 1 It is a top view of the U-shaped tube detection device in the embodiment of the present application.

[0013] Figure 2 It is a structural schematic diagram of the detection head in the embodiment of the present application.

[0014] Figure 3 It is a structural schematic diagram of the detection bending plate in the embodiment of the present application.

[0015] Description of the reference numerals: 1, workbench; 11, feeding belt; 111, positioning groove; 12, first cylinder; 13, second cylinder; 14, display; 2, detection head; 3, detection bending plate; 4, arc groove; 41, pressure sensor; 5, mounting head. Detailed Embodiment

[0016] The following further describes the present application in detail with reference to the drawings.

[0017] The embodiment of the present application discloses a U-shaped tube detection device.

[0018] As shown in the figure, the U-shaped tube detection device includes a workbench 1. A feeding belt 11 is arranged on the workbench 1. The feeding belt 11 is driven by a structure of a gear set and a motor. The motor is set to rotate regularly to drive the feeding belt 11 to synchronously drive. A detection head 2 and a detection bent plate 3 are also arranged on the workbench 1. The detection head 2 and the detection bent plate 3 are respectively located on both sides of the feeding belt 11. One side wall of the detection head 2 is an arc wall, and the inner wall of the detection bent plate 3 is an arc wall. Both arc walls are adapted to the axial radian of the U-shaped tube with qualified dimensions.

[0019] Further, a first cylinder 12 is arranged on the side of the detection head 2 away from the detection bent plate 3, and a second cylinder 13 is arranged on the side of the detection bent plate 3 away from the detection head 2. The first cylinder 12 and the second cylinder 13 are fixedly connected to the workbench 1. The side wall of the detection head 2 is rotatably connected with a mounting head 5. A threaded hole is opened on the mounting head 5 of the detection head 2. An external thread is arranged on the telescopic rod of the first cylinder 12. The mounting head 5 is sleeved on the telescopic rod of the first cylinder 12 and screwed, and then the threaded connection can be realized to achieve the connection between the detection head 2 and the first cylinder 12; the side wall of the detection bent plate 3 is also rotatably connected with a connection head, and is connected to the second cylinder 13 in the same connection manner as the detection head 2. When different U-shaped tubes need to be detected, the mounting heads 5 on the detection head 2 and the detection bent plate 3 can be screwed to disengage from the telescopic rods of the first cylinder 12 and the second cylinder 13, and then new detection heads 2 and detection bent plates 3 can be replaced.

[0020] For the connection between the detection head 2 and the first cylinder 12 and the connection between the detection bent plate 3 and the second cylinder 13, connection methods such as screw connection can also be selected.

[0021] Further, arc grooves 4 are arranged on both the arc side wall of the detection head 2 and the inner wall of the detection bent plate 3. The arc grooves 4 are used to adapt to the outer wall of the U-shaped tube diameter; a number of pressure sensors 41 are embedded in the inner walls of the arc grooves 4 of the detection head 2 and the detection bent plate 3. The number of pressure sensors 41 is evenly distributed. A display 14 is arranged on the workbench 1. The pressure sensors 41 are electrically connected to the display 14 and are also electrically connected to the first cylinder 12 and the second cylinder 13.

[0022] Further, a number of positioning grooves 111 are arranged on the feeding belt 11. The number of positioning grooves 111 is evenly arranged in sequence along the length direction of the feeding belt 11. The positioning grooves 111 are U-shaped. The groove width of the positioning grooves 111 is greater than the tube diameter of the U-shaped tube to be detected. The groove depth of the positioning grooves 111 is 0.5 - 1.5 millimeters, preferably 1 millimeter. The positioning grooves 111 can make the position of the U-shaped tube on the feeding belt 11 relatively stable, and the groove depth of 0.5 - 1.5 millimeters is convenient for the detection head to push the U-shaped tube out of the positioning grooves 111 to reduce resistance.

[0023] When performing the U-shaped tube detection work, the staff sequentially place multiple U-shaped tubes into each positioning groove 111. The feeding belt 11 operates to drive a U-shaped tube to move between the detection head 2 and the detection bending plate 3. The feeding belt 11 pauses working. The first cylinder 12 starts to drive the detection head 2 to move. The detection head 2 extends into the U-shaped tube, pushes the U-shaped tube out of the positioning groove 111, and further pushes it into the detection bending plate 3 to merge with the detection bending plate 3. At the same time, the side wall of the U-shaped tube is in contact with the arc groove 4. At this time, the first cylinder 12 stops. The pressure sensors 41 on the detection head 2 and the detection bending plate 3 perform detection. The pressure detection data at various positions on the detection head 2 and the detection bending plate 3 are displayed on the display 14. The fitting degree of the U-shaped tube with the detection head 2 and the detection bending plate 3 is judged by the degree of uniform pressure, so as to detect whether the size is qualified.

[0024] At the same time, the pressure sensors 41 can also transmit the pressure detection data to the first cylinder 12 and the second cylinder 13. If the first cylinder 12 does not stop after pushing the U-shaped tube to merge with the detection bending plate 3, and the pressure value on the pressure sensor 41 exceeds the threshold required for detection, the first cylinder 12 is stopped. At the same time, the telescopic rod of the second cylinder 13 contracts cooperatively to prevent the U-shaped tube from being deformed by pressure.

[0025] After the U-shaped tube detection is completed, the first cylinder 12 starts to contract to drive the detection head 2 to reset. The second cylinder 13 starts to extend, so that the detection bending plate 3 pushes the U-shaped tube to move onto the conveyor belt 11. After the U-shaped tube returns to the positioning groove 111 again, the second cylinder 13 starts to contract to drive the detection bending plate 3 to reset. At this time, the conveyor belt starts to drive the next U-shaped tube to move between the detection head 2 and the detection bending plate 3 for detection. The staff can judge whether the U-shaped tube is qualified according to the pressure data on the display 14. If it is unqualified, it is directly taken away from the feeding belt 11. If it is qualified, the U-shaped tube continues to move with the feeding belt 11 to the end of the feeding belt 11 for material collection.

[0026] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A U-shaped tube detection device, comprising a workbench (1), characterized in that, A feeding belt (11) is arranged on the workbench (1), and the feeding belt (11) is driven regularly; a detection head (2) and a detection bent plate (3) are respectively arranged on both sides of the feeding belt (11), and the side wall of the detection head (2) and the inner wall of the detection bent plate (3) are both arranged as arc-shaped walls adapted to the axial radian of the U-shaped tube; a first cylinder (12) is arranged on one side of the detection head (2), and a second cylinder (13) is arranged on one side of the detection bent plate (3).

2. The U-shaped tube detection device according to claim 1, wherein, A number of pressure sensors (41) are embedded on the side wall of the detection head (2) and the inner wall of the detection bent plate (3), a display (14) is arranged on the workbench (1), and the pressure sensors (41) are electrically connected to the display (14).

3. The U-shaped tube detection device according to claim 2, wherein Arc-shaped grooves (4) are arranged on the side wall of the detection head (2) and the inner wall of the detection bent plate (3), the pressure sensors (41) are embedded in the groove walls of the arc-shaped grooves (4), and the arc-shaped grooves (4) are used to be adapted to the outer wall of the U-shaped tube diameter.

4. The U-shaped tube detection device according to claim 2, wherein, The pressure sensors (41) are also electrically connected to the first cylinder (12) and the second cylinder (13) respectively.

5. The U-shaped tube detection device according to claim 1, wherein, A number of positioning grooves (111) for placing the U-shaped tube are arranged on the feeding belt (11), and each time the feeding belt (11) is driven, it drives a positioning groove (111) to move between the detection head (2) and the detection bent plate (3).

6. The U-shaped tube detection device according to claim 5, characterized in that, The depth of the positioning groove (111) is 0.5 - 1.5 millimeters.

7. The U-shaped tube detection device according to claim 1, characterized in that, The detection head (2) and the first cylinder (12), as well as the detection bent plate (3) and the second cylinder (13), are all detachably connected.

8. The U-shaped tube detection device according to claim 1, characterized in that, Mounting heads (5) are rotatably connected to both the detection head (2) and the detection bent plate (3), and the two mounting heads (5) are respectively threadedly connected to the telescopic rods of the first cylinder (12) and the second cylinder (13).

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