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Marking device taking outline as datum and making method

A scribing device and datum technology, which is applied in the field of mechanical processing, can solve the problems of profile straightness error, troublesome scribing datum, poor profile rigidity, etc., and achieve the effect of ensuring accuracy, high scribing precision and fast speed

Pending Publication Date: 2019-08-16
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when fitters directly scribe and drill mounting holes on rough materials such as long angle steel, H-shaped steel, and light channel steel, due to the slightly poor rigidity of these profiles, they are easily deformed due to the influence of unfavorable factors in production and transportation, resulting in the straightness of the profiles. There will always be errors, and the straightness error will bring trouble to the selection of the marking reference, because the profile has no processing surface at this time, and the production generally uses the line connecting the center points of the two ends of the profile as the marking reference, and at this time due to the straight line The error of the degree will cause the position of the hole to be processed to deviate greatly from the reference, making the position of the processed hole too close or too far from the edge of the outer contour, which violates the design requirements of the drawing, and the installation is difficult or impossible.
In order not to affect the installation, it is necessary to select undeformed profiles for drilling processing, cut off or discard deformed materials, resulting in waste of materials

Method used

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  • Marking device taking outline as datum and making method
  • Marking device taking outline as datum and making method
  • Marking device taking outline as datum and making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, query figure 1 , figure 2 , a scribing device based on the outer contour, comprising a reference disc 1, a through hole perpendicular to the disc surface is provided on the disc surface of the reference disc 1, an adjusting rod 2 is installed in the through hole, and the adjusting rod 2 A penetrating needle hole is provided on the side of the head, a needle 4 is inserted in the hole, and the needle 4 is fixed by a fixing bolt 5 . The reference plate 1 is also provided with a screw hole perpendicular to and connected with the through hole, an adjusting bolt 3 is installed in the screw hole, and the adjusting rod 2 is fixed by the adjusting bolt 3 . The roller 7 is installed on the roller shaft 9, and the roller shaft 9 is installed in the vertical groove 6.

[0028] Both the adjusting rod 2 and the reference plate 1 are provided with a scale; the scale on the adjusting rod 2 is set at the position of the center of the needle as the zero scale; the reference...

Embodiment 2

[0040] Example 2, query image 3, a scribing device based on the outer contour, including a reference disc 1, a through hole perpendicular to the disc surface is provided on the disc surface of the reference disc 1, an adjustment rod 2 is installed in the through hole, and the adjustment rod 2 ends A penetrating needle hole is provided on the side of the head, and a needle 4 is inserted into the hole, and the needle 4 is fixed by a fixing bolt 5. There are three vertical grooves 6 on the reference plate 1, one of which is It is located below the through hole of the adjusting rod, and the other two are symmetrically distributed on both sides of the through hole of the adjusting rod. When marking the straight profile, only load onto the rollers and clamps in the vertical grooves on both sides, and the method of use is the same as in Embodiment 1. When scribing a circular profile, remove the rollers on the vertical grooves on both sides, and only install the rollers in the middl...

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Abstract

The invention discloses a marking device taking an outline as the datum and a marking method. The marking device comprises a datum plate, wherein a through hole perpendicular to a plate surface is formed in the plate surface of the datum plate; a regulating rod is mounted in the through hole; a through marking needle hole is formed in the side surface of the head of the regulating rod; a marking needle is inserted into the marking needle hole; the marking needle is fixed by a bolt; at least one vertical slot is formed below the through hole; one roller is arranged in the vertical slot; duringmarking, the regulating rod is regulated, so that a distance from the marking needle to the datum plate reaches dimension requirements of a drawing; the datum plate is held in hands, the profiling processing principle is used, and the outline is taken as the datum to mark a blank section bar workpiece. The marking device disclosed by the invention is simple in structure, is convenient in operation, is high in marking precision, is high in marking speed, is wide in range of application, drills and marks a section bar which is liable to deform, does not have mounting hole processing errors, andfacilities saving processing materials.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a scribing device and a scribing method based on an outer contour. Background technique [0002] At present, when fitters directly scribe and drill mounting holes on rough materials such as long angle steel, H-shaped steel, and light channel steel, due to the slightly poor rigidity of these profiles, they are easily deformed due to the influence of unfavorable factors in production and transportation, resulting in the straightness of the profiles. There will always be errors, and the straightness error will bring trouble to the selection of the marking reference, because the profile has no processing surface at this time, and the production generally uses the line connecting the center points of the two ends of the profile as the marking reference, and at this time due to the straight line The error of the degree will make the position of the hole to be processed grea...

Claims

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Application Information

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IPC IPC(8): B25H7/04
CPCB25H7/04B25H7/045Y02P70/50
Inventor 张富
Owner SHANDONG IRON & STEEL CO LTD