Deflection detection device for back pipe

Abstract

According to the deflection detection device for the back pipe, a seat plate is fixedly supported on the plate surface of a platform plate, a supporting cylinder is detachably fixed to the seat plate, a rotating seat is arranged above the supporting cylinder, the lower end of the rotating seat is rotationally connected with the upper end of the supporting cylinder, and an inverted-cone-shaped column is concentrically and fixedly connected to the upper end face of the rotating seat; a flange at the lower end of the back pipe is detachably and fixedly connected with the rotating base through a plurality of bolts evenly distributed on the circumference, the inverted-cone-shaped column is matched with the interior of the back pipe, a stand column located on the outer side of the base plate is fixed to the platform plate, and a detection assembly used for conducting multi-point swing detection on the back pipe in the rotating process is fixed to the stand column in a position adjustable mode. According to the utility model, conditions are provided for rotation during detection of the back pipe, rapid center positioning during installation of the back pipe is facilitated, auxiliary supporting conditions are provided for reliable connection of the back pipe and the rotating seat, the defect of small-range displacement of the back pipe caused by bolt connection gaps during detection is avoided, the swing detection precision of the back pipe is improved, and the supporting is reliable and stable; and conditions are provided for high-precision detection of the straightness of the back tube.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection auxiliary tools, and in particular relates to a deflection detection device for a back tube. Background Art

[0002] During the use of the back tube with flange, there are high requirements for alignment straightness. Therefore, in order to prevent the deflection defect caused by low straightness accuracy of the back tube during operation, the straightness of the back tube after processing needs to be detected. The traditional detection method is to place the back tube horizontally and then manually detect it. However, due to its own gravity, the horizontally placed back tube has different degrees of errors in various positions. In addition, this method has low detection efficiency and poor detection accuracy, and cannot meet customers' requirements for the straightness of titanium back tubes. Therefore, in order to solve the above problems, it is necessary to make improvements. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a deflection detection device for a back pipe is provided, which provides conditions for the rotation of the back pipe during detection by rotatably installing a rotating seat for center positioning and fixing the back pipe on the upper end of a support cylinder, and by concentrically fixing an inverted cone column on the rotating seat, it is convenient for rapid center positioning of the back pipe during installation, and provides auxiliary support conditions for the reliable connection between the back pipe and the rotating seat, avoiding the disadvantage of a small range of displacement of the back pipe caused by the bolt connection gap during the rotation of the back pipe, improving the detection accuracy of the back pipe swing, having a simple structure, convenient and quick installation, reliable and stable support, and providing conditions for high-precision detection of the straightness of the back pipe.

[0004] The technical solution adopted by the utility model: a sway detection device for a back tube, comprising a platform plate, a seat plate is supported and fixed on the plate surface of the platform plate, and a support tube is detachably fixed on the seat plate, a rotating seat is provided above the support tube, and the lower end of the rotating seat is rotatably connected to the upper end of the support tube, an inverted cone column is concentrically fixed to the upper end surface of the rotating seat, and the flange at the lower end of the back tube is detachably fixed to the rotating seat by a plurality of bolts evenly distributed around the circumference, and the inverted cone column is adapted to the inside of the back tube, a column located outside the seat plate is fixed on the platform plate, and a detection component for performing multi-point sway detection on the back tube during rotation is adjustably fixed on the column.

[0005] Among them, the detection component includes a universal magnetic base and a dial indicator. The magnetic base at one end of the universal magnetic base is magnetically fixed on the column, and the dial indicator is installed on the other end of the universal magnetic base. The universal magnetic base is adjusted to make the probe of the dial indicator contact the outer wall of the back tube detection position.

[0006] Furthermore, a bearing is installed in the bearing groove at the upper port position of the support cylinder, and a step column with a lower end diameter smaller than an upper end diameter is fixed in the middle of the bottom surface of the rotating seat, the lower end of the step column is interference fit with the inner ring of the bearing, and the step surface of the step column is against the end face of the inner ring of the bearing.

[0007] Furthermore, an annular platform is concentrically provided on the upper end surface of the rotating seat, and an equal-diameter protrusion at the lower end of the inverted conical column is adapted to be included in the inner hole of the annular platform. A plurality of countersunk holes are formed on the upper end surface of the inverted conical column, and connecting screws arranged in the countersunk holes are threadedly connected to the rotating seat, thereby realizing detachable fixing of the inverted conical column on the rotating seat.

[0008] Furthermore, the inverted cone column is made of PVC material.

[0009] Furthermore, a ladder located outside the column is provided on the platform plate.

[0010] Furthermore, the flange plate at the lower end of the support tube is detachably fixed to the base plate by a plurality of bolts evenly distributed around the circumference.

[0011] The advantages of this utility model compared with the prior art:

[0012] 1. This technical solution provides conditions for the rotation of the back tube during detection by rotatably installing a rotating seat for positioning and fixing the center of the back tube at the upper end of the support tube;

[0013] 2. This technical solution fixes the inverted cone column concentrically on the rotating seat, which facilitates the rapid center positioning of the back tube during installation, and provides auxiliary support conditions for the reliable connection between the back tube and the rotating seat, avoiding the disadvantage of small-scale displacement of the back tube due to the bolt connection gap during the rotation of the back tube, and improving the accuracy of back tube swing detection;

[0014] 3. This technical solution uses an inverted cone column made of PVC material, which is convenient for the quick adaptation of the back tube and the rotating seat, and provides reliable support for the connection between the lower end of the back tube and the flange. At the same time, it can eliminate the adverse effects of the inverted cone column on the back tube surface during installation and testing, and ensure the appearance quality of the back tube;

[0015] 4. This technical solution has a simple structure, is easy and quick to install, has reliable and stable support, provides conditions for high-precision detection of the back tube straightness, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiment of the present utility model Figure 1-2 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0021] Deflection detection device for back pipe, such as Figure 1-2As shown, it includes a platform plate 1, a seat plate 2 is supported and fixed on the plate surface of the platform plate 1, and a support tube 3 is detachably fixed on the seat plate 2. Specifically, the flange plate at the lower end of the support tube 3 is detachably fixed to the seat plate 2 by a plurality of bolts evenly distributed around the circumference; a rotating seat 4 is provided above the support tube 3, and the lower end of the rotating seat 4 is rotatably connected to the upper end of the support tube 3, an inverted cone column 5 is concentrically fixedly connected to the upper end surface of the rotating seat 4, and a flange 6 at the lower end of the back tube 7 is detachably fixedly connected to the rotating seat 4 by a plurality of bolts evenly distributed around the circumference, and the inverted cone column 5 is adapted to the inside of the back tube 7, and a flange 6 located outside the seat plate 2 is fixed on the platform plate 1 The column 8 on the side, and the detection component for performing multi-point swing detection on the back tube 7 during the rotation process is adjustably fixed on the column 8; in the above structure, the rotating seat 4 for center positioning and fixing the back tube 7 is rotatably installed on the upper end of the support cylinder 3, so as to provide conditions for the rotation of the back tube 7 during detection; and the inverted cone column 5 is concentrically fixed on the rotating seat 4, so as to facilitate the rapid center positioning of the back tube 7 during installation, and provide auxiliary support conditions for the reliable connection between the back tube 7 and the rotating seat 4, so as to avoid the disadvantage of small-range displacement of the back tube 7 due to the gap of the bolt connection during the rotation of the back tube 7, and improve the accuracy of the back tube swing detection;

[0022] like Figure 1 As shown, the specific structure of the detection component is as follows: the detection component includes a universal magnetic base 9 and a dial indicator 10, the magnetic base 9-1 at one end of the universal magnetic base 9 is magnetically fixed on the column 8, and the dial indicator 10 is installed on the other end of the universal magnetic base 9, and the universal magnetic base 9 is adjusted to make the probe of the dial indicator 10 contact the outer wall of the detection position of the back tube 7; when the detection position needs to be changed, the magnetic base 9-1 on the universal magnetic base 9 is moved to the column 8 corresponding to the detection position of the back tube 7 and magnetically fixed.

[0023] like Figure 2 As shown, the rotating connection structure between the support cylinder 3 and the rotating seat 4 is specifically as follows: a bearing 12 is installed in the bearing groove at the upper end position of the support cylinder 3, and a step column 4-1 with a lower end diameter smaller than an upper end diameter is fixed to the middle of the bottom surface of the rotating seat 4, the lower end of the step column 4-1 is interference fit with the inner ring of the bearing 12, and the step surface of the step column 4-1 is against the end face of the inner ring of the bearing 12.

[0024] The specific structure of the inverted conical column 5 is as follows: an annular platform 4-2 is concentrically provided on the upper end surface of the rotating seat 4, and the equal-diameter convex column at the lower end of the inverted conical column 5 is adapted to the inner hole of the annular platform 4-2, and a plurality of countersunk holes are formed on the upper end surface of the inverted conical column 5, and the connecting screws arranged in the countersunk holes are threadedly connected to the rotating seat 4 to realize the detachable fixed connection of the inverted conical column 5 on the rotating seat 4; specifically, the inverted conical column 5 is made of PVC material; in order to facilitate the observation of the pointer reading on the dial indicator 10, a ladder 11 located outside the column 8 is specially provided on the platform plate 1; in the above structure, the inverted conical column 5 made of PVC material is convenient for the quick adaptation of the back tube 7 and the rotating seat 4, and provides reliable support for the connection between the lower end of the back tube 7 and the flange 6, and at the same time can eliminate the adverse effects of the inverted conical column 5 on the surface of the back tube 7 during installation and detection, thereby ensuring the appearance quality of the back tube 7;

[0025] This technical solution has a simple structure, is easy and quick to install, has reliable and stable support, provides conditions for high-precision detection of the back tube straightness, and has high use value.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A deflection detection device for a back tube, comprising a platform plate (1), a seat plate (2) being supported and fixed on the plate surface of the platform plate (1), and a support tube (3) being detachably fixed on the seat plate (2), characterized in that: A rotating seat (4) is provided above the support tube (3), and the lower end of the rotating seat (4) is rotatably connected to the upper end of the support tube (3); an inverted cone column (5) is concentrically fixedly connected to the upper end surface of the rotating seat (4), and a flange (6) at the lower end of the back tube (7) is detachably fixedly connected to the rotating seat (4) by a plurality of bolts evenly distributed around the circumference, and the inverted cone column (5) is adapted to fit inside the back tube (7); a column (8) located outside the seat plate (2) is fixed to the platform plate (1), and a detection component for performing multi-point swing detection on the back tube (7) during rotation is adjustably fixed on the column (8).

2. The deflection detection device for a back tube according to claim 1, characterized in that: The detection assembly comprises a universal magnetic base (9) and a dial indicator (10); a magnetic base (9-1) at one end of the universal magnetic base (9) is fixed on the column (8) by magnetic attraction, and the dial indicator (10) is installed on the other end of the universal magnetic base (9); and the probe of the dial indicator (10) is brought into contact with the outer wall of the detection position of the back tube (7) by adjusting the universal magnetic base (9).

3. The deflection detection device for a back tube according to claim 1, characterized in that: A bearing (12) is installed in the bearing groove at the upper port position of the support cylinder (3), and a stepped column (4-1) with a lower end diameter smaller than an upper end diameter is fixed in the middle of the bottom surface of the rotating seat (4), the lower end of the stepped column (4-1) is interference fit with the inner ring of the bearing (12), and the step surface of the stepped column (4-1) is against the end surface of the inner ring of the bearing (12).

4. The deflection detection device for a back tube according to claim 1, characterized in that: The upper end surface of the rotating seat (4) is concentrically provided with an annular platform (4-2), and the equal-diameter protrusion at the lower end of the inverted conical column (5) is adapted to the inner hole of the annular platform (4-2). The upper end surface of the inverted conical column (5) is provided with a plurality of countersunk holes, and the connecting screws arranged in the countersunk holes are threadedly connected to the rotating seat (4), so as to realize the detachable fixing of the inverted conical column (5) on the rotating seat (4).

5. The deflection detection device for a back tube according to claim 4, characterized in that: The inverted cone column (5) is made of PVC material.

6. The deflection detection device for a back tube according to any one of claims 1 to 5, characterized in that: The platform plate (1) is provided with a ladder (11) located outside the column (8).

7. The deflection detection device for a back tube according to claim 6, characterized in that: The flange plate at the lower end of the support cylinder (3) is detachably fixed to the seat plate (2) by means of a plurality of bolts evenly distributed around the circumference.

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