Tubular column machining precision inspection tool
By designing a fixture for inspecting the machining accuracy of tubular columns, and using the inspection columns on the guide rails and positioning supports to calibrate the inner holes and mounting holes of the tubular columns, the problems of low efficiency and poor accuracy of traditional manual measurement are solved, and rapid and accurate accuracy inspection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional pipe column machining accuracy inspection relies on manual measurement, which is inefficient, has poor repeatability, and is greatly affected by human factors, making it difficult to guarantee data accuracy.
A fixture for inspecting the machining accuracy of a tubular column was designed, including a fixed base plate, a guide rail, and a positioning support. The inner hole and mounting hole of the tubular column are calibrated by the accuracy detection components on the guide rail and the positioning support. The accuracy of the inner hole and the mounting hole are detected by the first detection column and the second detection column, respectively, so as to achieve fast and efficient accuracy inspection.
It enables rapid and accurate calibration of the inner bore and mounting holes of the tubing, adapts to the rapid clamping and benchmark calibration of tubing of different lengths, improves measurement efficiency and data accuracy, and reduces the influence of human factors.
Smart Images
Figure CN224121843U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of inspection tooling technology, specifically relating to a tooling for inspecting the machining accuracy of tubular columns. Background Technology
[0002] In modern industry, tubing strings, as a critical basic component, are widely used in numerous industries such as petrochemicals, marine engineering, aerospace, energy and power, and machinery manufacturing. The machining accuracy of tubing string parts (such as tubing, casing, and hydraulic cylinders) directly affects the product's performance, reliability, and service life. The bore diameter, mounting hole layout, and coaxiality of the tubing string are key quality indicators.
[0003] However, traditional inspection methods have many limitations. Traditional methods for inspecting the machining accuracy of tubing mainly rely on workers manually measuring basic dimensions such as the outer diameter, inner diameter, coaxiality, and mounting holes of the tubing using simple measuring tools such as calipers and micrometers. This method is not only inefficient and consumes a lot of manpower and time, but it is also greatly affected by human factors, has poor measurement repeatability, and makes it difficult to guarantee the accuracy of the data.
[0004] Therefore, how to provide a convenient and efficient inspection fixture for testing the machining accuracy of tubular columns is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a tooling for inspecting the machining accuracy of tubular columns, so as to solve at least one of the above-mentioned technical problems.
[0006] To solve the above-mentioned technical problems, this utility model provides a fixture for inspecting the machining accuracy of a tube column. The fixture includes a fixed base plate, a guide rail, and two positioning supports. The guide rail is mounted on the fixed base plate. Each of the two positioning supports includes a slider and a precision detection component. The slider is slidably connected to the guide rail. A tube column is disposed between the two precision detection components. The tube column includes a column body and mounting rings located at both ends of the column body. An inner hole is opened inside the column body. Several mounting holes are opened around the two mounting rings. Each of the two precision detection components includes a fixed seat, a first detection column, and several second detection columns. The fixed seat is disposed on the slider, and the first detection column and several second detection columns are vertically disposed on the inner side of the fixed seat.
[0007] Optionally, the two fixing seats are arranged opposite each other, such that the inner surfaces of the two fixing seats face each other and both face the column.
[0008] Optionally, the placement of the first detection column is consistent with the placement of the inner hole.
[0009] Optionally, the arrangement of the plurality of second detection posts in one of the fixing seats is consistent with the arrangement of the plurality of mounting holes on the mounting ring located at one end of the post; the arrangement of the plurality of second detection posts in another fixing seat is consistent with the arrangement of the plurality of mounting holes on the mounting ring located at the other end of the post.
[0010] Optionally, both of the mounting bases can be detachably mounted on the slider.
[0011] Optionally, the fixed base plate is also provided with two limiting blocks, which are respectively disposed at both ends of the guide rail.
[0012] Optionally, the bottom of the fixed base plate is provided with several fixing holes so that the fixed base plate can be detachably installed on the workbench.
[0013] Optionally, the second detection post is a pin.
[0014] Beneficial effects:
[0015] This utility model provides a fixture for inspecting the machining accuracy of a tubular column, including a fixed base plate, a guide rail, and two positioning supports. The guide rail is mounted on the fixed base plate, and each of the two positioning supports includes a slider and a precision detection component. The slider is slidably connected to the guide rail. In use, the tubular column is positioned between the two precision detection components. The tubular column includes a column body and mounting rings located at both ends of the column body. The column body has an internal hole, and each of the two mounting rings has several mounting holes circumferentially arranged to calibrate the internal hole and mounting holes of the tubular column through the guide rail and the two positioning supports. Specifically, each of the two precision detection components includes a fixed base plate, a guide rail, and two positioning supports. The fixture includes a fixed base, a first inspection post, and several second inspection posts. The first inspection post is used to inspect the accuracy of the inner hole. Simultaneously, the first inspection posts located on both sides of the tube column can be used to check whether the coaxiality of the inner hole on both sides in the length direction is qualified. The second inspection posts are used to inspect the accuracy of the mounting hole. The dimensions of the first and second inspection posts should correspond to the dimensions of the inner hole and mounting hole that meet the usage specifications. In this way, with the setting of guide rails and positioning supports, the inner hole and mounting hole of tube columns of different lengths can be calibrated to create a tooling that facilitates rapid inspection of the machining accuracy of the tube column.
[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of a tooling for inspecting the machining accuracy of a tubular column, provided in an embodiment of this application.
[0019] Figure 2 A side view of a pipe column machining accuracy inspection fixture provided in an embodiment of this application;
[0020] Figure label:
[0021] 1—Fixed base plate;
[0022] 11—Fixing hole;
[0023] 2—Guide rail;
[0024] 21—Limit block;
[0025] 3—Positioning support;
[0026] 31—Slider;
[0027] 32—Precision inspection component;
[0028] 321—Fixed base;
[0029] 322—First detection column;
[0030] 323—Second detection column;
[0031] 4—Tube string;
[0032] 41—Column;
[0033] 42—Mounting ring;
[0034] 43—inner hole;
[0035] 44—Mounting holes; Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] Furthermore, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.
[0038] Please see Figure 1-2 This embodiment provides a fixture for inspecting the machining accuracy of a tube column. The fixture includes a fixed base plate 1, a guide rail 2, and two positioning supports 3. The guide rail 2 is mounted on the fixed base plate 1. Each of the two positioning supports 3 includes a slider 31 and a precision detection component 32. The slider 31 is slidably connected to the guide rail 2. A tube column 4 is disposed between the two precision detection components 32. The tube column 4 includes a column body 41 and mounting rings 42 located at both ends of the column body 41. An inner hole 43 is opened inside the column body 41. Several mounting holes 44 are opened around the two mounting rings 42. Each of the two precision detection components 32 includes a fixed seat 321, a first detection column 322, and several second detection columns 323. The fixed seat 321 is disposed on the slider 31, and the first detection column 322 and several second detection columns 323 are vertically disposed on the inner side of the fixed seat 321.
[0039] Specifically, this utility model provides a tooling for inspecting the machining accuracy of a tube column, including a fixed base plate 1, a guide rail 2, and two positioning supports 3. The guide rail 2 is mounted on the fixed base plate 1. Each of the two positioning supports 3 includes a slider 31 and a precision detection element 32. The slider 31 is slidably connected to the guide rail 2. In use, the tube column 4 is arranged between the two precision detection elements 32. The tube column 4 includes a column body 41 and mounting rings 42 located at both ends of the column body 41. The column body 41 has an inner hole 43. Each of the two mounting rings 42 has several mounting holes 44 arranged around it to allow passage. The guide rail 2 and two positioning supports 3 are used to calibrate the inner hole 43 and mounting hole 44 of the tube column 4. Specifically, both precision testing components 32 include a fixed base 321, a first testing post 322, and several second testing posts 323. The first testing post 322 is used to test the precision of the inner hole 43. At the same time, the first testing posts 322 located on both sides of the tube column 4 can be used to test whether the coaxiality of the inner hole 43 on both sides in the length direction is qualified. The second testing posts 323 are used to test the precision of the mounting hole 44. The dimensions of the first testing post 322 and the second testing post 323 should conform to the requirements. The dimensions of the inner hole 43 and the mounting hole 44 should correspond to the specifications. During use, the tube column 4 should be placed between two fixing seats 321. First, calibrate the mounting hole 44 and inner hole 43 on one side of the tube column 4 with the first detection post 322 and the second detection post 323 on the corresponding fixing seat 321. If the detection post can be successfully inserted into the mounting hole 44 and inner hole 43 on one side of the tube column 4, then the dimensions on one side of the tube column 4 are considered to meet the standard. At this time, one side of the tube column 4 can be temporarily inserted through the first detection post 322 and the second detection post 323. After fixing, the calibration personnel can push another fixed seat 321 to calibrate the dimensions of the other side of the test column 4. If the dimensions of one side of the column 4 do not meet the standard, there is no need to test the other side, and the part can be identified as not meeting the standard. At the same time, the inner diameter, mounting hole size, and inner hole straightness of a single tooling are tested. Through the setting of guide rail 2 and positioning support 3, the tooling is adapted to the quick clamping and benchmark calibration of columns 4 of different lengths, and the dimensions of inner hole 43 and mounting hole 44 are calibrated to build a tooling that facilitates the quick inspection of the machining accuracy of column 4.
[0040] In some possible implementations, the two mounting bases 321 are arranged opposite each other so that the inner surfaces of the two mounting bases 321 face each other and both face the column 4.
[0041] Specifically, as shown in the figure, two fixed seats 321 are arranged opposite each other. The side of the two fixed seats 321 where the first detection column 322 and the second detection column 323 are set is facing inward, that is, towards the tube column 4, for dimensional verification of both sides of the tube column 4.
[0042] In some possible implementations, the first detection column 322 is positioned in the same location as the inner hole 43.
[0043] Specifically, the first detection column 322 is positioned in the same way as the inner hole 43, and is used to calibrate the size of the inner hole 43 of the tube column 4. The coaxiality of the inner hole 43 of the tube column 4 can also be detected by the first detection columns 322 located on both sides.
[0044] In some possible implementations, the arrangement of a plurality of second detection posts 323 in one fixing base 321 is consistent with the arrangement of a plurality of mounting holes 44 on the mounting ring 42 at one end of the column 41; the arrangement of a plurality of second detection posts 323 in another fixing base 321 is consistent with the arrangement of a plurality of mounting holes 44 on the mounting ring 42 at the other end of the column 41.
[0045] Specifically, since the opening methods of several mounting holes 44 on the mounting rings 42 at both ends of the tube column 4 are not exactly the same between tube columns of different specifications, the arrangement of several second detection columns 323 on the fixed seats 321 adjacent to both ends of the tube column 4 is consistent with the arrangement of the corresponding mounting holes 44.
[0046] In some possible implementations, both mounting bases 321 can be detachably mounted on the slider 31.
[0047] Specifically, since there is a possibility that the mounting holes 44 on both sides may be arranged in the same way, inconsistently, or with different hole diameters between different specifications of tube columns 4, the two fixing seats 321 and the slider 31 are both set to be detachable, so that the calibration personnel can flexibly replace the fixing seats 321 according to the specific structure of different tube columns 4.
[0048] In some possible implementations, the fixed base plate 1 is also provided with two limiting blocks 21, which are respectively provided at both ends of the guide rail 2; the bottom of the fixed base plate 1 is also provided with several fixing holes 11 so that the fixed base plate 1 can be detachably installed on the workbench; the second detection column 323 is a pin.
[0049] Specifically, as shown in the figure, the two limit blocks 21 are set to facilitate the restriction of the two sliders 31.
[0050] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
[0051] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A fixture for inspecting the machining accuracy of tubular columns, characterized in that, The fixture for inspecting the machining accuracy of the tubular column includes a fixed base plate (1), a guide rail (2), and two positioning supports (3). The guide rail (2) is mounted on the fixed base plate (1). Each of the two positioning supports (3) includes a slider (31) and a precision detection component (32). The slider (31) is slidably connected to the guide rail (2). A tubular column (4) is provided between the two precision detection components (32). The tubular column (4) includes a column body (41) and mounting rings (42) located at both ends of the column body (41). The column (41) has an inner hole (43) inside, and the two mounting rings (42) are each surrounded by a number of mounting holes (44); wherein, the two precision detection components (32) each include a fixed base (321), a first detection column (322) and a number of second detection columns (323); the fixed base (321) is disposed on the slider (31), and the first detection column (322) and the number of second detection columns (323) are all vertically disposed on the inner side of the fixed base (321).
2. The fixture for inspecting the machining accuracy of the tubular column according to claim 1, characterized in that, The two fixing seats (321) are arranged opposite each other so that the inner surfaces of the two fixing seats (321) face each other and both face the column (4).
3. The fixture for inspecting the machining accuracy of the tubular column according to claim 2, characterized in that, The placement of the first detection column (322) is consistent with the placement of the inner hole (43).
4. The fixture for inspecting the machining accuracy of the tubular column according to claim 3, characterized in that, The arrangement of the plurality of second detection posts (323) in one of the fixing bases (321) is consistent with the arrangement of the plurality of mounting holes (44) on the mounting ring (42) at one end of the column (41); the arrangement of the plurality of second detection posts (323) in another fixing base (321) is consistent with the arrangement of the plurality of mounting holes (44) on the mounting ring (42) at the other end of the column (41).
5. The fixture for inspecting the machining accuracy of the tubular column according to claim 4, characterized in that, Both of the aforementioned fixing seats (321) can be detachably installed on the slider (31).
6. The fixture for inspecting the machining accuracy of the tubular column according to claim 5, characterized in that, Two limiting blocks (21) are also provided on the fixed base plate (1), and the two limiting blocks (21) are respectively provided at both ends of the guide rail (2).
7. The fixture for inspecting the machining accuracy of the tubular column according to claim 6, characterized in that, The bottom of the fixed base plate (1) is also provided with several fixing holes (11) so that the fixed base plate (1) can be detachably installed on the workbench.
8. The fixture for inspecting the machining accuracy of the tubular column according to claim 7, characterized in that, The second detection column (323) is a pin.