Marking device

Abstract

The invention discloses a marking device comprising a marking awl assembly which comprises a marking awl (11) with adjustable length, and a positioning component (2) connected with the marking awl assembly, wherein a bushing (31) and a measuring rule (32) arranged in the bushing (31) are further connected between the marking awl assembly and the positioning component (2); one of the bushing (31) and the measuring rule (32) is connected with the marking awl assembly, and the other of the bushing (31) and the measuring rule (32) is connected with the positioning component (2); the measuring rule (32) can be drawn out or retracted from the bushing (31) and fixed so as to precisely and continuously adjust the length of the marking device; and splicing tubes (4) can be spliced in different numbers according to marking lengths needed by different workpieces. The marking device can precisely and continuously adjust the length so as to be capable of marking parts with different sizes, ensures precise marking size, has convenient use and solves the problem of difficult marking of large workpieces because the workpieces do not need to be placed on a marking platform, thereby being capable of being used as a special tool for marking for large workpieces.

Description

technical field [0001] The invention relates to the technical field of scribing tools, in particular to a ground gauge. Background technique [0002] In the manufacturing process of construction machinery products, the scribing process of large parts is often involved. Existing scribing tools are not easy to ensure the dimensional accuracy of large parts and components, and some parts and components with irregular shapes or certain angles are not easy to achieve scribing process with the common scribing tools in the prior art. [0003] The ground plan is a commonly used marking tool in the industrial manufacturing process, and it is a kind of planning. As far as the current technical state is concerned, the ground rules are generally manufactured by each processing unit according to their own needs. Therefore, there are basically no certain standards and specifications for the ground rules. [0004] Please refer to figure 1 , figure 1 It is a schematic structural diagram...

AI Technical Summary

Problems solved by technology

[0008] It can be seen from the above that the ground rules in the prior art are basically made temporarily according to the processing needs, the production is relatively rough, and the dimensional accuracy is not high. For some scribing processes that do not require high dimensional accuracy, they can basically meet the needs, but for It cannot be applied to the scribing process that requires high dimensional accuracy.

[0009] At the same time, the length of the ground gauge has been determined, so only the marking process of the same length can be applied. When the length of the parts changes, it is necessary to remake the corresponding ground plan to complete the marking process, thus increasing the working time and increasing the working cost.

[0010] At the same time, the rigid ground gauge in the prior art uses the fixed marking needle 1'3 as a positioning component, and the fixed marking needle 1'3 is welded to the steel bar 1'1. When the positioning reference of the parts changes, for example, When the positioning reference is a hole, shaft or pipe, the fixed needle 1′3 is not suitable as a positioning component

[0011] In addition, for some large component products, the ground rules in the prior art are not suitable

Large-scale parts and components are large in size, have different lengths, and have various angles. Using the ground planning line in the prior art obviously cannot guarantee the dimensional accuracy of the parts

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