Steel structure flatness detection tool

Abstract

The utility model relates to a flatness detection tool for a steel structure. The flatness detection tool is characterized by comprising a magnetic attraction base, a rotary support, a connecting rod, a roller unit and a dial indicator detection frame, the magnetic attraction base of the tool is placed on the surface of a structure to be measured, and it is ensured that the tool base is fully attached to the surface of the component. The connecting rod is reinforced through a roller unit, the dial indicator is installed on the connecting rod through a clamping device, and the distance can be adjusted along the axial direction of the connecting rod. Before measurement, the dial indicator is adjusted to the zero position, during measurement, the lever is rotated, the pointer jerk value of the dial indicator is observed to obtain a flatness error value, the flatness error value is marked, finally, the plane difference value of each point position is determined, and the out-of-tolerance position is directly subjected to hot work correction. The tool is suitable for checking the flatness of a flange before and after the manufacturing of a structural member, and is especially suitable for checking the flatness of machining surfaces with high precision requirements, so that the detection precision can be improved to 0.01 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel surface detection technical field especially relates to a steel structure flatness detection frock. BACKGROUND

[0002] The manufacturing process control and manufacturing precision requirement of component are higher and higher, for example, the flatness of the large car connecting support and the lower crossbeam flange plate is out of tolerance due to the deformation of the steel plate, the welding deformation of the structural part or the stress deformation of the component, thereby affecting the smooth progress of the next process. After the large car connecting support is manufactured, the upper plane needs to be machined integrally, and the machining position must ensure that the overall flatness is less than 5mm (machining allowance 5mm) to meet the machining requirements. In the past, when detecting the compliance of the incoming material and the overall flatness before the machine tool, only a ruler is used for rough measurement, the measurement accuracy of the ruler is low, and the measurement range is small, only the local flatness can be reflected, and the overall error of the long length cannot be reflected. When adjusting the parallelism of the tool on the component after the machine tool, it is found that the flatness of the whole machined surface exceeds the allowable deviation range, and it cannot be machined, and the machine tool needs to be disassembled for fire correction. If the error is too large, the plane needs to be welded and then machined, which is time-consuming and laborious, and the quality cannot be guaranteed. CONTENT OF THE UTILITY MODEL

[0003] The technical problem to be solved by the utility model is to provide a steel structure flatness detection frock, which can solve the problems

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a steel structure flatness detection frock, the innovation point of which is that the utility model comprises a magnetic base, a rotating support, a connecting rod, a roller unit and a dial indicator detection frame.

[0005] The magnetic base is in a disc-shaped structure, and the magnetic base has magnetism and can adsorb the surface of the steel structure plate; an annular track groove is arranged on the upper surface of the magnetic base, and a circular hole is formed at the center position of the magnetic base, and a thrust bearing is arranged in the circular hole.

[0006] The rotating support is vertically arranged at the center position of the upper surface of the magnetic base; the rotating support is in a cylindrical structure and is connected with the thrust bearing at the bottom; the central axis of the rotating support and the central axis of the thrust bearing are the same axis; a connecting rod accommodating hole is vertically formed at the position close to the top end of the rotating support.

[0007] The connecting rod passes through a connecting rod accommodating hole on the rotating support along a horizontal direction, a pair of roller frames are arranged on the connecting rod above the annular track groove on the magnetic base, the roller frames are distributed on two sides of the rotating support, roller units are arranged on the roller frames, and the roller units are embedded in the annular track groove on the upper surface of the magnetic base, so that the roller units and the annular track groove are matched to provide a guide for rotation of the connecting rod.

[0008] The dial gauge detection frame is arranged on the connecting rod and can reciprocate along the extension direction of the connecting rod, and a dial gauge is arranged on the dial gauge detection frame to contact the surface of the steel structure.

[0009] Further, the dial gauge detection frame is in the form of a ring-shaped housing and is nested on the connecting rod, bolt holes are arranged on the dial gauge detection frame, and the dial gauge detection frame is locked on the connecting rod through cooperation of the bolts and the bolt holes.

[0010] The utility model discloses the advantages are:

[0011] 1) the magnetic base of the tool is placed on the surface of the structure to be measured, ensuring that the tool base is fully attached to the surface of the component. The connecting rod is reinforced by the roller unit, and the dial gauge is installed on the connecting rod by a clamping device and can be adjusted in distance along the axial direction of the connecting rod. Before measurement, the dial gauge is adjusted to zero, the lever is rotated during measurement, the flatness error value is obtained by observing the dial gauge pointer jump, and the mark is made, and the plane difference of each point is finally determined, and the fire correction is directly performed on the excessive position. This tool is suitable for checking the flatness of the flange before and after the structure is made, especially for detecting the flatness of the machined surface with high precision, so that the detection accuracy can be improved to 0.01mm. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0013] Figure 1 It is a front view of a flatness detection tool for a steel structure.

[0014] Figure 2 It is a top view of a flatness detection tool for a steel structure. DETAILED DESCRIPTION

[0015] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based upon the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of the application.

[0017] As shown in Figure 1 Figure 2 The utility model provides a kind of steel structure flatness detection tool, including magnetic base 1, rotating support 2, connecting rod 3, gyro wheel unit 4 and dial gauge detection frame 5.

[0018] Magnetic base 1 is discoid structure, and magnetic base 1 has the surface of steel structure plate material and can be adsorbed magnetically;Annular track groove is arranged on the upper surface of magnetic base 1, and a circular hole is opened at the center position of magnetic base 1, and a thrust bearing is arranged in the circular hole.

[0019] Rotating support 2 is vertically arranged at the center position of the upper surface of magnetic base 1;Rotating support 2 is cylindrical structure and is connected with thrust bearing at bottom;The central axis of rotating support 2 and the central axis of thrust bearing are the same axis;Connecting rod accommodating hole is opened at the position close to top of rotating support 2 perpendicularly to axis direction.

[0020] Connecting rod 3 passes through connecting rod accommodating hole on rotating support along horizontal direction, and a pair of gyro wheel frame 41 is arranged on connecting rod 3 above annular track groove on magnetic base 1, and gyro wheel frame 41 is distributed at both sides of rotating support 2, gyro wheel unit 4 is arranged on gyro wheel frame, and gyro wheel unit 4 is embedded in annular track groove on the upper surface of magnetic base 1, and guiding is provided when connecting rod 3 rotates by gyro wheel unit 4 and annular track groove cooperation.

[0021] Dial gauge detection frame 5 is installed on connecting rod, and dial gauge detection frame 5 can reciprocate along the extension direction of connecting rod 3, and dial gauge 51 that contacts with the surface of steel structure is arranged on dial gauge detection frame.

[0022] Dial gauge detection frame 5 is annular housing, and dial gauge detection frame 5 is nested on connecting rod 3;Bolt hole is arranged on dial gauge detection frame 5, and dial gauge detection frame 5 is locked on connecting rod 3 by bolt and bolt hole cooperation.

[0023] The working principle of the utility model is: the magnetic attraction base of the tool is placed on the surface of the structure to be measured, ensuring that the tool base and the surface of the component are fully attached. The connecting rod is reinforced by the roller unit, and the dial indicator is installed on the connecting rod by a clamping device and can be adjusted in distance along the connecting rod axis. Before measurement, the dial indicator is adjusted to zero, the lever is rotated during measurement, the flatness error value is obtained by observing the dial indicator pointer jump, and the mark is made, the plane difference of each point is finally determined, and the fire correction is directly performed on the excessive position. The tool is suitable for checking the flatness of the flange before and after the structure is made, especially the machining surface flatness detection of some high precision requirements, so that the detection accuracy can be improved to 0.01mm.

[0024] Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model.

Claims

1. A steel structure flatness detection tool, characterized in that: Including magnetic base, rotating support, connecting rod, roller unit and dial indicator detection frame; The magnetic base is in a disc structure, and has a surface capable of attracting a steel structure plate. An annular track groove is arranged on the upper surface of the magnetic base, and a circular hole is formed at the center of the magnetic base, and a thrust bearing is arranged in the circular hole. The rotating support is vertically arranged at the center of the upper surface of the magnetic base. The rotating support is in a cylindrical structure, and the bottom thereof is connected with the thrust bearing. The central axis of the rotating support is the same as the central axis of the thrust bearing. A connecting rod accommodating hole is vertically formed on the rotating support near the top end. The connecting rod passes through the connecting rod accommodating hole on the rotating support in the horizontal direction. A pair of roller frames are arranged on the connecting rod above the annular track groove of the magnetic base, and are distributed on both sides of the rotating support. The roller frames are provided with roller units, and the roller units are embedded in the annular track groove on the upper surface of the magnetic base. The roller units and the annular track groove cooperate to provide a guide for the rotation of the connecting rod. The dial indicator detection frame is installed on the connecting rod, and can reciprocate along the extension direction of the connecting rod. The dial indicator detection frame is provided with a dial indicator in contact with the surface of the steel structure.

2. The flatness detection tool for steel structure according to claim 1, characterized in that: The dial indicator detection frame is in a ring-shaped housing, and is nested on the connecting rod. The dial indicator detection frame is provided with a bolt hole, and the dial indicator detection frame is locked on the connecting rod by cooperation of the bolt and the bolt hole.

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