Tapered pipe wall thickness detection device

Abstract

The utility model relates to a conical pipe wall thickness detection device, which comprises a bottom plate, a clamping mechanism and a measuring mechanism, the clamping mechanism is used for fixedly clamping a conical pipe, and the clamping mechanism is arranged on the bottom plate; the measuring mechanism is arranged on the bottom plate, the measuring mechanism comprises a synchronous plate, an inner wall datum point, a measuring dial indicator and an elastic adjusting assembly, the synchronous plate is arranged on the bottom plate in a sliding mode, and the inner wall datum point, the measuring dial indicator and the elastic adjusting assembly are all arranged on the synchronous plate; the inner wall reference point abuts against the inner wall of the conical pipe all the time under the action of the elastic adjusting assembly, an elastic measuring head of the measuring dial indicator abuts against the outer wall of the conical pipe all the time, and the inner wall reference point and the measuring dial indicator synchronously move in the axial direction of the conical pipe under driving of the synchronous plate. The device is simple in structure and low in manufacturing cost, and effectively reduces the detection cost.

Description

Technical Field

[0001] This utility model relates to the field of workpiece inspection technology, and in particular to a device for detecting the wall thickness of a tapered tube. Background Technology

[0002] like Figure 1 The tapered tube 200 shown needs to have its wall thickness measured using measuring tools during the production process to ensure that the produced tapered tube meets the requirements.

[0003] Chinese Patent CN 207703172 U discloses a pipe wall thickness measuring instrument, including a measuring housing (1). The measuring housing (1) contains a pipe wall thickness measuring device (2), a pipe conveying device (3), and a driving device (4). The driving device (4) drives the pipe conveying device (3). The pipe conveying device (3) includes an upper conveyor belt (5) and a lower conveyor belt (6), with a gap between the upper conveyor belt (5) and the lower conveyor belt (6) for pipe passage. Along the conveying direction of the pipe conveying device (3), the pipe wall thickness measuring device (2) is located behind the pipe conveying device (3). Although this pipe wall thickness measuring instrument can complete the wall thickness test of the tapered pipe 200, its manufacturing cost is high, resulting in high testing costs. Utility Model Content

[0004] Therefore, it is necessary to provide a tapered pipe wall thickness measuring device to address the problem of high manufacturing costs of existing pipe wall thickness measuring instruments, which leads to high testing costs.

[0005] A tapered tube wall thickness detection device, comprising:

[0006] Base plate;

[0007] A clamping mechanism, wherein the clamping mechanism is used to fix and clamp the tapered tube, the clamping mechanism being disposed on the base plate; and

[0008] A measuring mechanism is mounted on the base plate. The measuring mechanism includes a synchronization plate, an inner wall reference point, a dial indicator, and an elastic adjustment component. The synchronization plate is slidably mounted on the base plate. The inner wall reference point, the dial indicator, and the elastic adjustment component are all mounted on the synchronization plate. The inner wall reference point is always in contact with the inner wall of the tapered tube under the action of the elastic adjustment component. The elastic measuring head of the dial indicator is always in contact with the outer wall of the tapered tube. The inner wall reference point and the dial indicator move synchronously along the axial direction of the tapered tube under the drive of the synchronization plate.

[0009] The aforementioned tapered tube wall thickness detection device, through the cooperation of the base plate, clamping mechanism and measuring mechanism, can detect the wall thickness of the tapered tube in real time, and the detection results are highly accurate. When the measuring point of the tapered tube is changed, there is no need to reposition it, which effectively improves the detection efficiency. This tapered tube wall thickness detection device has a simple structure and low manufacturing cost, which effectively reduces the detection cost.

[0010] In one embodiment, the clamping mechanism includes a fixed base, a sliding plate, a mounting base, a positioning sleeve, a movable sleeve, and a handwheel. The fixed base is fixedly connected to the base plate, the positioning sleeve is rotatably mounted on the fixed base via a bearing, a transverse guide rail is provided on the base plate, a transverse slide block is slidably connected to the transverse guide rail, the sliding plate is fixedly connected to the transverse slide block, the mounting base is fixedly mounted on the sliding plate, the movable sleeve is rotatably mounted on the mounting base via a bearing, and the handwheel is fixedly connected to the movable sleeve.

[0011] In one embodiment, the synchronization plate is fixedly connected to the transverse slide.

[0012] In one embodiment, the measuring mechanism further includes a longitudinal guide rail, a longitudinal slide block, and a base plate. The longitudinal guide rail is disposed on the synchronization plate and is perpendicular to the transverse guide rail. The longitudinal slide block is slidably connected to the longitudinal guide rail, and the base plate is fixedly connected to the longitudinal slide block.

[0013] In one embodiment, the measuring mechanism further includes a fixed arm, which is fixedly disposed on the substrate. The positioning sleeve has an axially perforated hole, and the end of the fixed arm away from the substrate passes through the perforation and extends into the tapered tube to be fixedly connected to the inner wall reference point.

[0014] In one embodiment, the elastic adjustment assembly includes a fixed frame, an elastic element, and a push rod. The fixed frame is fixedly mounted on the synchronization plate. One end of the push rod passes through the fixed frame and engages with a nut. The elastic element is fitted over the push rod. One end of the elastic element abuts against the fixed frame, and the other end of the elastic element abuts against the push rod. The other end of the push rod abuts against the side end of the base plate.

[0015] In one embodiment, the measuring mechanism further includes a base fixedly disposed on the side of the substrate away from the elastic adjustment component, and the measuring dial indicator is fixedly disposed on the base.

[0016] In one embodiment, the clamping mechanism further includes a locking assembly, which includes a connecting seat, a handle, a locking shaft, a locking seat, and a connecting member. The connecting seat is fixedly connected to the slide plate, and the locking seat is fixedly disposed on the base plate. The locking seat includes a main seat portion, a sleeve portion connected to the main seat portion, and a hinge portion connected to the main seat portion. One end of the locking shaft is fixedly connected to the connecting seat, and the other end of the locking shaft passes through the sleeve portion and is hinged to one end of the connecting member. The handle includes a handle portion and a connecting portion connected to the handle portion. The connecting portion is hinged to the hinge portion, and the other end of the connecting member is hinged to the connection between the handle portion and the connecting portion.

[0017] In one embodiment, the tapered tube wall thickness detection device further includes a transverse standard rod and a longitudinal standard rod. The synchronization plate and the base plate are provided with a first transverse positioning hole, and the slide plate and the base plate are provided with a second transverse positioning hole. There are two transverse standard rods, one of which is inserted into the first transverse positioning hole and the other is inserted into the second transverse positioning hole. The base plate and the synchronization plate are provided with a longitudinal positioning hole, and the longitudinal standard rod is inserted into the longitudinal positioning hole.

[0018] In one embodiment, the tapered tube wall thickness detection device further includes an adjustment standard rod, the base plate is provided with an adjustment standard hole, the synchronization plate is provided with a fixing hole, and the lower end of the adjustment standard rod passes through the adjustment standard hole and extends into the fixing hole. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a tapered tube;

[0020] Figure 2 This is an assembly structure diagram of the tapered tube wall thickness detection device in one embodiment of the present invention;

[0021] Figure 3 For example Figure 2 Another view of the tapered tube wall thickness detection device shown;

[0022] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0023] Figure 5 for Figure 3 Enlarged view of section B;

[0024] Figure 6 For example Figure 2 The diagram shows the tapered tube wall thickness detection device in the state of tapered tube size detection.

[0025] The meanings of the numbers in the attached diagram are as follows:

[0026] 100-Coiled pipe wall thickness detection device;

[0027] 10-Base plate, 11-Transverse guide rail, 12-Transverse slide block

[0028] 20-Clamping mechanism, 21-Fixed seat, 22-Slide plate, 221-Second transverse positioning hole, 3-Mounting seat, 24-Positioning sleeve, 25-Modible sleeve, 26-Handwheel, 27-Locking assembly, 271-Connecting seat, 272-Handle, 2721-Handle portion, 2722-Connecting part, 273-Locking shaft, 274-Locking seat, 2741-Main seat portion, 2742-Sleeve portion, 2743-Hinge portion, 275-Connecting piece, 276-Leaning groove;

[0029] 30-Measuring mechanism, 31-Synchronization plate, 311-First transverse positioning hole, 32-Inner wall reference point, 33-Measuring dial indicator, 34-Elastic adjustment component, 341-Fixed frame, 342-Elastic element, 343-Push rod, 35-Longitudinal guide rail, 36-Base plate, 361-Longitudinal positioning hole, 362-Adjustment standard hole, 37-Fixed arm, 38-Base;

[0030] 40 - Lateral standard bar;

[0031] 50 - Longitudinal standard bar

[0032] 60 - Adjustment standard lever,

[0033] 70 - Calibration piece;

[0034] 200-conical tube. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Please see Figure 2 The tapered tube wall thickness detection device 100 according to one embodiment of the present utility model includes a base plate 10, a clamping mechanism 20 and a measuring mechanism 30, wherein the clamping mechanism 20 and the measuring mechanism 30 are both disposed on the base plate 10.

[0042] Please see Figure 2 and Figure 3 The clamping mechanism 20 is used to fix and clamp the tapered tube 200. The clamping mechanism 20 includes a fixed base 21, a sliding plate 22, a mounting base 23, a positioning sleeve 24, a movable sleeve 25, and a handwheel 26. The fixed base 21 is fixedly connected to the base plate 10. The positioning sleeve 24 is rotatably mounted on the fixed base 21 via bearings. A transverse guide rail 11 is provided on the base plate 10, and the transverse guide rail 11 is slidably connected to the transverse slide block 12. The sliding plate 22 is fixedly connected to the transverse slide block 12. The mounting base 23 is fixedly mounted on the sliding plate 22. The movable sleeve 25 is rotatably mounted on the mounting base 23 via bearings. The handwheel 26 is fixedly connected to the movable sleeve 25. The inner walls of the positioning sleeve 24 and the movable sleeve 25 are provided with inclined surfaces, and the edge of the tapered tube 200 abuts against the inclined surfaces. The inclined surfaces ensure that the tapered tube 200 is always aligned with the center line, and also make the clamping of the tapered tube 200 by the movable sleeve 25 and the positioning sleeve 24 more secure.

[0043] Please see Figure 3 and Figure 4The clamping mechanism 20 further includes a locking assembly 27, which includes a connecting seat 271, a handle 272, a locking shaft 273, a locking seat 274, and a connecting member 275. The connecting seat 271 is fixedly connected to the slide plate 22, and the locking seat 274 is fixedly disposed on the base plate 10. The locking seat 274 includes a main seat portion 2741, a sleeve portion 2742 connecting the main seat portion 2741, and a hinge portion 2743 connecting the main seat portion 2741. One end of the locking shaft 273 is fixedly connected to the connecting seat 271, and the other end of the locking shaft 273 passes through the sleeve portion 2742 and is hinged to one end of the connecting member 275. The handle 272 includes a handle portion 2721 and a connecting portion 2722 connecting the handle portion 2721. The connecting portion 2722 is hinged to the hinge portion 2743, and the other end of the connecting member 275 is hinged to the connection between the handle portion 2721 and the connecting portion 2722.

[0044] Please see Figure 3 and Figure 4 The number of the connecting parts 275 is two, and the two connecting parts 275 are respectively disposed on both sides of the locking shaft 273. A clearance groove 276 is provided between the two connecting parts 275. When the hinge part 2743 is engaged in the clearance groove 276, the locking assembly 27 is in a locked state, thereby positioning the slide plate 22.

[0045] Please see Figure 2 The measuring mechanism 30 includes a synchronization plate 31, an inner wall reference point 32, a measuring dial indicator 33, and an elastic adjustment component 34. The synchronization plate 31 is fixedly connected to the transverse slide block 12 so that the synchronization plate 31 is slidably disposed on the base plate 10. The inner wall reference point 32, the measuring dial indicator 33, and the elastic adjustment component 34 are all disposed on the synchronization plate 31. Under the action of the elastic adjustment component 34, the inner wall reference point 32 is always in contact with the inner wall of the tapered tube 200. The elastic measuring head of the measuring dial indicator 33 is always in contact with the outer wall of the tapered tube 200. The inner wall reference point 32 and the measuring dial indicator 33 move synchronously along the axial direction of the tapered tube 200 under the drive of the synchronization plate 31.

[0046] Please see Figure 2 The measuring mechanism 30 also includes a longitudinal guide rail 35, a longitudinal slide block and a base plate 36. The longitudinal guide rail 35 is disposed on the synchronization plate 31 and is perpendicular to the transverse guide rail 11. The longitudinal slide block is slidably connected to the longitudinal guide rail 35 and the base plate 36 is fixedly connected to the longitudinal slide block.

[0047] Please see Figure 2The measuring mechanism 30 also includes a fixed arm 37, which is fixedly mounted on the substrate 36. The positioning sleeve 24 has an axially perforated hole. The end of the fixed arm 37 away from the substrate 36 passes through the perforation and extends into the tapered tube 200, where it is fixedly connected to the inner wall reference point 32.

[0048] Please see Figure 2 and Figure 5 The elastic adjustment assembly 34 includes a fixed frame 341, an elastic element 342, and a push rod 343. The fixed frame 341 is fixedly mounted on the synchronization plate 31. One end of the push rod 343 passes through the fixed frame 341 and engages with a nut. The elastic element 342 is fitted over the push rod 343, with one end abutting against the fixed frame 341 and the other end abutting against the push rod 343. The other end of the push rod 343 abuts against the side end of the base plate 36. Thus, under the combined action of the elastic element 342 and the push rod 343, the inner wall reference point 32 is always in contact with the inner wall of the tapered tube 200 under the action of the elastic adjustment assembly 34, thereby ensuring the accuracy of the measurement data from the dial indicator 33.

[0049] Please see Figure 2 The measuring mechanism 30 also includes a base 38, which is fixedly disposed on the side of the base plate 36 away from the elastic adjustment component 34, and the measuring dial indicator 33 is fixedly disposed on the base 38.

[0050] Please see Figure 6 The tapered tube wall thickness detection device 100 further includes a transverse standard rod 40 and a longitudinal standard rod 50. The synchronization plate 31 and the base plate 10 are provided with a first transverse positioning hole 311, and the slide plate 22 and the base plate 10 are provided with a second transverse positioning hole 221. There are two transverse standard rods 40, one of which is inserted into the first transverse positioning hole 311 and the other is inserted into the second transverse positioning hole 221. The base plate 36 and the synchronization plate 31 are provided with a longitudinal positioning hole 361, and the longitudinal standard rod 50 is inserted into the longitudinal positioning hole 361.

[0051] Please see Figure 6 The tapered tube wall thickness detection device 100 further includes an adjustment standard rod 60, the base plate 36 is provided with an adjustment standard hole 362, the synchronization plate 31 is provided with a fixing hole, and the lower end of the adjustment standard rod 60 passes through the adjustment standard hole 362 and extends into the fixing hole.

[0052] Since the positions of the first transverse positioning hole 311, the second transverse positioning hole 221, the longitudinal positioning hole 361, the adjustment standard hole 362, and the fixing hole are set according to the dimensions of the standard tapered tube 200, when one of the transverse standard rods 40 is inserted into the first transverse positioning hole 311, another transverse standard rod 40 is inserted into the second transverse positioning hole 221, the longitudinal standard rod 50 is inserted into the longitudinal positioning hole 361, and the lower end of the adjustment standard rod 60 passes through the adjustment standard hole 362 and extends into the fixing hole, it is possible to detect whether the current dimensions of the tapered tube 200 are within the standard range, thereby quickly determining whether the current tapered tube 200 is qualified and effectively improving the detection rate.

[0053] Please see Figure 3 The tapered tube wall thickness detection device 100 also includes a calibration component 70 for zeroing the measuring dial gauge 33. The calibration component 70 is fixedly installed on the base plate 10, so that the measuring dial gauge 33 can be calibrated at all times, effectively improving the accuracy of the measurement data.

[0054] The working principle of the tapered tube wall thickness detection device 100 in this embodiment is as follows: During operation, one end of the tapered tube 200 is first placed inside the positioning sleeve 24, and the tapered tube 200 is fitted onto the fixed arm 37. The inner wall reference point 32 abuts against the inner wall of the tapered tube 200. Then, the sliding plate 22 is pushed, causing the movable sleeve 25 to fit onto the other end of the tapered tube 200. Then, the handle 272 is driven to swing, causing the hinge part 2743 to engage in the relief groove 276. At this time, the locking assembly 27 is in the locked state. This fixes the tapered tube 200 in a fixed state. Then, the synchronizer plate 31 is manually moved along the transverse guide rail 11 to a suitable position. With the assistance of the elastic adjustment component 34, the inner wall reference point 32 remains in contact with the inner wall of the tapered tube 200, and the elastic measuring head of the dial gauge 33 remains in contact with the outer wall of the tapered tube 200. The handwheel 26 is manually rotated to rotate the tapered tube 200. The wall thickness of the tapered tube 200 can be detected in real time by observing the value of the dial gauge 33. Furthermore, when changing the measuring point of the tapered tube 200, repositioning is unnecessary, effectively improving detection efficiency.

[0055] The beneficial effects of this utility model are as follows: the wall thickness of the tapered tube 200 can be detected in real time through the cooperation of the base plate 10, the clamping mechanism 20 and the measuring mechanism 30, and the detection result is highly accurate. When the measuring point of the tapered tube 200 is changed, there is no need to reposition it, which effectively improves the detection efficiency. The tapered tube wall thickness detection device 100 has a simple structure and low manufacturing cost, which effectively reduces the detection cost.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for detecting the wall thickness of a conical tube, characterized in that, include: Base plate; A clamping mechanism is provided on the base plate for fixing and clamping the tapered tube. as well as A measuring mechanism is mounted on the base plate. The measuring mechanism includes a synchronization plate, an inner wall reference point, a dial indicator, and an elastic adjustment component. The synchronization plate is slidably mounted on the base plate. The inner wall reference point, the dial indicator, and the elastic adjustment component are all mounted on the synchronization plate. The inner wall reference point is always in contact with the inner wall of the tapered tube under the action of the elastic adjustment component. The elastic measuring head of the dial indicator is always in contact with the outer wall of the tapered tube. The inner wall reference point and the dial indicator move synchronously along the axial direction of the tapered tube under the drive of the synchronization plate.

2. The tapered tube wall thickness detection device according to claim 1, characterized in that, The clamping mechanism includes a fixed base, a sliding plate, a mounting base, a positioning sleeve, a movable sleeve, and a handwheel. The fixed base is fixedly connected to the base plate. The positioning sleeve is rotatably mounted on the fixed base via a bearing. A transverse guide rail is provided on the base plate. A transverse slide block is slidably connected to the transverse guide rail. The sliding plate is fixedly connected to the transverse slide block. The mounting base is fixedly mounted on the sliding plate. The movable sleeve is rotatably mounted on the mounting base via a bearing. The handwheel is fixedly connected to the movable sleeve.

3. The tapered tube wall thickness detection device according to claim 2, characterized in that, The synchronization plate is fixedly connected to the transverse slide.

4. The tapered tube wall thickness detection device according to claim 2, characterized in that, The measuring mechanism further includes a longitudinal guide rail, a longitudinal slide block, and a base plate. The longitudinal guide rail is disposed on the synchronization plate and is perpendicular to the transverse guide rail. The longitudinal slide block is slidably connected to the longitudinal guide rail, and the base plate is fixedly connected to the longitudinal slide block.

5. The tapered tube wall thickness detection device according to claim 4, characterized in that, The measuring mechanism also includes a fixed arm, which is fixedly mounted on the substrate. The positioning sleeve has an axially perforated hole, and the end of the fixed arm away from the substrate passes through the perforation and extends into the tapered tube to be fixedly connected to the inner wall reference point.

6. The tapered tube wall thickness detection device according to claim 5, characterized in that, The elastic adjustment assembly includes a fixed frame, an elastic element, and a push rod. The fixed frame is fixedly mounted on the synchronization plate. One end of the push rod passes through the fixed frame and engages with a nut. The elastic element is fitted over the push rod. One end of the elastic element abuts against the fixed frame, and the other end of the elastic element abuts against the push rod. The other end of the push rod abuts against the side end of the base plate.

7. The tapered tube wall thickness detection device according to claim 6, characterized in that, The measuring mechanism further includes a base, which is fixedly disposed on the side of the substrate away from the elastic adjustment component, and the measuring dial indicator is fixedly disposed on the base.

8. The tapered tube wall thickness detection device according to claim 2, characterized in that, The clamping mechanism further includes a locking assembly, which includes a connecting seat, a handle, a locking shaft, a locking seat, and a connecting member. The connecting seat is fixedly connected to the slide plate, and the locking seat is fixedly disposed on the base plate. The locking seat includes a main seat portion, a sleeve portion connecting the main seat portion, and a hinge portion connecting the main seat portion. One end of the locking shaft is fixedly connected to the connecting seat, and the other end of the locking shaft passes through the sleeve portion and is hinged to one end of the connecting member. The handle includes a handle portion and a connecting portion connecting the handle portion. The connecting portion is hinged to the hinge portion, and the other end of the connecting member is hinged to the connection between the handle portion and the connecting portion.

9. The tapered tube wall thickness detection device according to claim 4, characterized in that, It also includes a horizontal standard rod and a vertical standard rod. The synchronization plate and the base plate are provided with a first horizontal positioning hole, and the slide plate and the base plate are provided with a second horizontal positioning hole. There are two horizontal standard rods, one of which is inserted into the first horizontal positioning hole and the other is inserted into the second horizontal positioning hole. The base plate and the synchronization plate are provided with a vertical positioning hole, and the vertical standard rod is inserted into the vertical positioning hole.

10. The tapered tube wall thickness detection device according to claim 4, characterized in that, It also includes an adjustment standard rod, the base plate is provided with an adjustment standard hole, the synchronization plate is provided with a fixing hole, and the lower end of the adjustment standard rod passes through the adjustment standard hole and extends into the fixing hole.

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