Water tank pipe end part caliber testing fixture

Abstract

The utility model discloses a water tank pipe end portion caliber testing fixture, comprising a fixed plate, one side of the fixed plate is provided with a positioning groove, the positioning groove is internally provided with a detection block used for being inserted into the water tank pipe end portion, the detection block comprises a positioning plate embedded in the positioning groove, an insertion plate fixedly connected with the positioning plate, and an independently arranged moving plate, the fixed plate is further provided with a linear adjusting mechanism, and the linear adjusting mechanism is used for adjusting the distance between the movable plate and the inserting plate. Compared with the prior art, the positioning plate and the insertion plate included in the detection block can be replaced, and the movable plate can move under the action of the linear adjusting mechanism, so that the detection block can be suitable for water tank pipes of different specifications after being adjusted, a vernier caliper is not needed to measure the water tank pipes, the detection is more convenient and simpler, and the detection efficiency is improved. The large error caused by the detection technique is avoided, and the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water tank pipe detection, in particular to a water tank pipe end diameter gauge. Background Art

[0002] The water tank pipe is mainly used in the cooling system of an automobile, connecting the water tank and the engine, and is responsible for transferring the heat generated by the engine to the water tank through the coolant. The cross-section of the water tank pipe is generally rectangular, also called a flat pipe.

[0003] Bending is a process of making metal materials undergo plastic deformation by applying external force, usually carried out on a bending machine. The water tank pipe is formed by bending. Its raw material is an aluminum strip. The aluminum strip is bent by the die of the bending machine to form a hollow rectangle, and finally the butted edges are welded to form the water tank pipe.

[0004] After the water tank pipe is bent and formed, it is necessary to measure the end diameter of the water tank pipe to ensure that the water tank pipe can match the corresponding pipe joint. The existing detection method is that personnel use a vernier caliper to measure the end diameter of the water tank pipe. However, the use of a vernier caliper requires sufficient experience, such as personnel with organic processing or inspection experience. Front-line workers often do not have this experience. After using the vernier caliper, there are large errors in the measurement results due to the operation method, resulting in inaccurate measurement results. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a water tank pipe end diameter gauge. The positioning plate and the insertion plate included in the detection block can be replaced, and the moving plate can move under the action of a linear adjustment mechanism, so that the detection block can be adjusted to be applicable to water tank pipes of different specifications after adjustment. Furthermore, there is no need to use a vernier caliper to measure it, and the detection is more convenient and simple, avoiding large errors caused by the detection method and improving the measurement accuracy.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A water tank pipe end diameter gauge includes a fixed plate. A positioning groove is opened on one side of the fixed plate. A detection block for inserting the end of the water tank pipe is arranged in the positioning groove. The detection block includes a positioning plate embedded in the positioning groove, an insertion plate fixedly connected to the positioning plate, and a separately arranged moving plate. The fixed plate is also provided with a linear adjustment mechanism for adjusting the distance between the moving plate and the insertion plate.

[0008] Furthermore, the linear adjustment mechanism includes a limit groove opened on the surface of the fixed plate. A slider is slidably connected in the limit groove. One side of the fixed plate is threadedly connected with a screw rod. One end of the screw rod is located in the limit groove and is rotatably connected to the slider. The moving plate is fixed to the slider.

[0009] Further, a positioning hole is provided on the positioning plate, a positioning rod is inserted on the fixing plate, and one end of the positioning rod is located within the positioning hole.

[0010] Further, the positioning hole is provided at the top of the fixing plate and is a through hole, a threaded hole is provided at the bottom of the positioning groove, and the bottom end of the positioning rod passes through the positioning hole and is threadedly connected to the threaded hole.

[0011] Further, a rubber pad is provided on the surface of the positioning groove in contact with the positioning plate.

[0012] Further, a length scale is provided on the surface of the fixing plate located on the moving path of the moving plate.

[0013] Further, a handle is fixed to the side of the fixing plate away from the detection block.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] The positioning plate and the insertion plate included in the detection block of the present utility model can be replaced, and the moving plate can move under the action of the linear adjustment mechanism, so that the detection block can be adjusted to be applicable to water tank pipes of different specifications after adjustment. Furthermore, it is not necessary to use a vernier caliper to measure it, and the detection is more convenient and simple, avoiding large errors caused by detection methods and improving the measurement accuracy.

[0016] The screw of the present utility model is rotatably connected to the slider, and the slider is limited by the limiting groove. Therefore, when the screw rotates, the slider will move along with the movement of the end of the screw, thereby changing the distance between the moving plate and the insertion plate, and further enabling the detection block to detect water tank pipes of different calibers and lengths.

[0017] The positioning plate of the present utility model is fixed in the positioning groove through the positioning rod. Therefore, when the positioning rod is taken out, the positioning plate can be replaced, and thus the corresponding insertion plate can be replaced.

[0018] A length scale is provided on the surface of the fixing plate of the present utility model. Through the length scale, the position of the moving plate can be judged, so as to facilitate the operator to adjust the moving plate to the required position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall structural schematic diagram of a water tank pipe end caliber detector of the present utility model.

[0020] Figure 2 is a schematic diagram of the connection of the fixing plate, the linear condition mechanism, the positioning groove and the moving plate connection mechanism of a water tank pipe end caliber detector of the present utility model.

[0021] Figure 3 is a schematic diagram of the connection structure of the fixing plate and the detection block of a water tank pipe end caliber detector of the present utility model.

[0022] Figure 4 This is a schematic diagram of the connection structure between the positioning plate and the insertion plate of a caliper for checking the end diameter of a water tank pipe of the present utility model.

[0023] In the figure: 1, fixed plate; 2, handle; 3, positioning rod; 4, detection block; 401, positioning plate; 4011, positioning hole; 402, insertion plate; 403, moving plate; 5, linear adjustment mechanism; 501, slider; 502, screw; 503, limiting groove; 7, positioning groove; 8, threaded hole; 9, length scale. Specific embodiments

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] As Figures 1-4 shown, a caliper for checking the end diameter of a water tank pipe includes a fixed plate 1. A positioning groove 7 is opened on one side of the fixed plate 1. A detection block 4 for inserting the end of the water tank pipe is arranged in the positioning groove 7. The detection block 4 includes a positioning plate 401 embedded in the positioning groove 7, an insertion plate 402 fixedly connected to the positioning plate 401, and a separately arranged moving plate 403. The fixed plate 1 is also provided with a linear adjustment mechanism 5 for adjusting the distance between the moving plate 403 and the insertion plate 402.

[0026] In this embodiment, as Figure 1 and Figure 2 shown, the linear adjustment mechanism 5 includes a limiting groove 503 opened on the surface of the fixed plate 1. A slider 501 is slidably connected in the limiting groove 503. One side of the fixed plate 1 is threadedly connected with a screw 502. One end of the screw 502 is located in the limiting groove 503 and is rotatably connected to the slider 501. The moving plate 403 is fixed to the slider 501. When checking the end diameter of the water tank pipe, the detection block 4 should be inserted into the pipe orifice of the water tank pipe. If the detection block 4 fits perfectly with the pipe orifice of the water tank pipe after insertion (there is no obvious shaking after the detection block 4 is inserted into the pipe orifice, and it can also be inserted into the pipe orifice of the water tank pipe), it proves that the end diameter of the water tank pipe is within the specified range. If the detection block 4 cannot be inserted into the pipe orifice of the water tank pipe or there is obvious shaking after being inserted into the pipe orifice of the water tank pipe, it proves that the end diameter of the water tank pipe does not meet the dimensional requirements.

[0027] When detecting water tank pipes with different sizes and calibers, the screw rod 502 can be manually rotated according to the designed caliber of the water tank pipe. Since the screw rod 502 is rotationally connected to the slider 501 through a bearing and the slider 501 is limited by the limiting groove 503, when the screw rod 502 rotates, the slider 501 will move along with the movement of the end of the screw rod 502, thereby changing the distance between the moving plate 403 and the inserting plate 402, and further enabling the detection block 4 to detect water tank pipes with different caliber lengths.

[0028] As Figure 1 and Figure 3 shown, positioning holes 4011 are formed in the positioning plate 401, and positioning rods 3 are inserted into the fixing plate 1. One end of the positioning rod 3 is located in the positioning hole 4011. When the positioning rod 3 is disengaged from the positioning hole 4011, the positioning plate 401 can be removed from the positioning groove 7, thereby removing the positioning plate 401 and the inserting plate 402 together from this inspection tool, and then replacing the inserting plate 402 with other specifications (the specifications of the positioning plate 401 are the same), so that the replaced inserting plate 402 can detect the height value of the corresponding end caliber of the water tank pipe. Moreover, since the water tank pipe is formed by bending through a mold, the height inside different positions of the water tank pipe is the same, so the moving plate 403 does not need to be replaced.

[0029] In summary, after adjustment, this inspection tool can detect the calibers of the ends of water tank pipes with different specifications, so there is no need to use a vernier caliper to measure them. The detection is more convenient, avoiding large errors caused by detection methods and improving the measurement accuracy.

[0030] Among them, as Figure 4 and Figure 3 shown, the positioning holes 4011 are formed at the top of the fixing plate 1 and the positioning holes 4011 are through holes. Both the fixing plate 1 and the positioning groove 7 are rectangular. Threaded holes 8 are formed at the bottom of the positioning groove 7. The bottom end of the positioning rod 3 passes through the positioning hole 4011 and is threadedly connected to the threaded hole 8. Threads are provided on the outer periphery of the bottom of the positioning rod 3. Therefore, the bottom of the positioning rod 3 can be screwed into the threaded hole 8 and threadedly connected to the threaded hole 8, thereby further improving the connection stability between the fixing plate 1 and the positioning groove 7. As Figure 3 shown, a rubber pad is provided on the surface of the positioning groove 7 in contact with the positioning plate 401. The rubber pad has elasticity and can ensure full contact between the positioning plate 401 and the inner wall of the positioning groove 7.

[0031] Among them, as Figure 1 shown, a length scale 9 is provided on the surface of the fixing plate 1 on the moving path of the moving plate 403. Through the length scale 9, the position of the moving plate 403 can be judged, and thus the distance between the moving plate 403 and the inserting plate 402 can be judged.

[0032] Among them, as Figure 1 shown, a handle 2 is fixed to the side of the fixing plate 1 away from the detection block 4.

[0033] Working principle: First, select a suitable plug board 402 according to the specifications of the water tank pipe to be detected. Then, place the positioning board 401 fixed by this plug board 402 into the positioning groove 7, and pass the positioning rod 3 through the positioning hole 4011 and finally thread it with the threaded hole 8, so as to fix the positioning board 401 and the plug board 402. Next, manually rotate the screw rod 502 according to the specifications of the water tank pipe, so that the slider 501 moves along with the movement of the end of the screw rod 502, and further change the distance between the moving board 403 and the plug board 402, so that the distance between the moving board 403 and the plug board 402 meets the requirements, and the end diameter of the water tank pipe to be detected can be detected. The specific detection method is: Insert the adjusted detection block 4 into the pipe orifice of the water tank pipe. If the detection block 4 fits perfectly with the pipe orifice of the water tank pipe after insertion (the detection block 4 can be inserted into the pipe orifice without obvious shaking), it proves that the end diameter of the water tank pipe is within the specified range. If the detection block 4 cannot be inserted into the pipe orifice of the water tank pipe or there is obvious shaking after being inserted into the pipe orifice of the water tank pipe, it proves that the end diameter of the water tank pipe does not meet the dimensional requirements.

[0034] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water tank pipe end diameter inspection tool, comprising a fixing plate (1), characterized in that: One side of the fixed plate (1) is provided with a positioning groove (7). A detection block (4) for inserting the end of a water tank pipe is arranged in the positioning groove (7). The detection block (4) includes a positioning plate (401) embedded in the positioning groove (7), a plug plate (402) fixedly connected to the positioning plate (401), and a separately arranged moving plate (403). The fixed plate (1) is further provided with a linear adjustment mechanism (5) for adjusting the distance between the moving plate (403) and the plug plate (402).

2. The end diameter inspection tool for a water tank pipe according to claim 1, characterized in that: The linear adjustment mechanism (5) includes a limiting groove (503) opened on the surface of the fixed plate (1). A slider (501) is slidably connected in the limiting groove (503). One side of the fixed plate (1) is threadedly connected with a screw rod (502). One end of the screw rod (502) is located in the limiting groove (503) and is rotatably connected to the slider (501). The moving plate (403) is fixed on the slider (501).

3. The end diameter inspection tool for a water tank pipe according to claim 2, characterized in that: A positioning hole (4011) is opened on the positioning plate (401). A positioning rod (3) is inserted into the fixed plate (1). One end of the positioning rod (3) is located in the positioning hole (4011).

4. A water tank pipe end diameter inspection tool according to claim 3, characterized in that: The positioning hole (4011) is opened at the top of the fixed plate (1) and the positioning hole (4011) is a through hole. A threaded hole (8) is opened at the bottom of the positioning groove (7). The bottom end of the positioning rod (3) passes through the positioning hole (4011) and is threadedly connected to the threaded hole (8).

5. The end diameter inspection tool for a water tank pipe according to claim 1, characterized in that: A rubber pad is arranged on the surface of the positioning groove (7) in contact with the positioning plate (401).

6. The caliber detector for the end part of a water tank pipe according to claim 2, wherein: A length scale (9) is arranged on the surface of the fixed plate (1) on the moving path of the moving plate (403).

7. A water tank pipe end diameter inspection tool according to any one of claims 1-6, characterized in that: A handle (2) is fixed on the side surface of the fixed plate (1) away from the detection block (4).

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