CN216791246U - Plate forming flow characterization line marking tool - Google Patents

Abstract

The utility model provides a plate forming flow characterization line marking tool, and belongs to the technical field of marking tools. The marking tool comprises a circular central connecting area and a measuring scale which is connected to the outer circumference of the central connecting area in a sliding way; the one end that central authorities joining region was kept away from to the dipperstick is provided with the fixation clamp, has seted up the locating hole on the dipperstick. The plate forming flowing characterization line marking tool provided by the utility model converts empirical judgment into a marking tool, has the capability of being suitable for the deformation states of plates in various shapes, is ingenious in design, simple to operate and intuitive in display, and can accurately and intuitively characterize the inflow change of the plates in the forming process so as to evaluate the reliability of a stamping simulation result.

Description

Plate forming flow characterization line marking tool

Technical Field

The utility model relates to the technical field of marking tools, in particular to a plate forming flow characterization line marking tool.

Background

At present, in the field of plate stamping and forming, because multiple nonlinear theoretical relations are involved, the practical result is difficult to be guided by general theoretical calculation, and a computer numerical simulation technology is a high-efficiency and rapid research mode and can obtain comprehensive experimental data in each experiment.

However, in the actual application process, a plurality of stamping simulation software algorithms are different, and engineers have different boundary condition identification and control, which has a great influence on the final simulation calculation result. The traditional way of distinguishing between simulation and actual stamping results is visual identification, and then an empirical judgment is made to see if the appearance of the simulation result is synchronized with the actual stamping result.

The paper, study on the forming defects of automobile panels based on inflow, volume 44, No. 9 of 2018 in the die industry, only measures the change of the outer contour of a plate before and after deformation to illustrate the inflow condition of the plate, does not consider the situations of expansion and thinning of the plate and the thickness of a stacked layer, and only measures the outer contour insufficiently rigorously. In a study on the combination of punching CAE simulation analysis and actual die adjustment, in document 2 of 11 th stage of 2018 in the manufacture of dies, it is mentioned that the inflow of a plate has a certain judgment value compared with the accuracy of a result of a plate forming simulation, but the inflow of an outer contour is only measured, and an accurate quantification scheme is not provided.

In a thesis "working method for debugging a thin plate stamping and drawing die", equipment manufacturing technology-2016, 08 th, document 3, reference is made to comparison of inflow simulation results of outer edges to explain the inflow condition of a plate, the conditions of expansion and thinning of the plate and the thickness of a stacked layer, and the comparison is performed by a thinning rate measurement method. The method takes fixed point displacement as a quantification means, and can replace the two steps to accurately represent the plate inflow condition.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve the problems that the prior art depends heavily on experience judgment of technicians, cannot perform quantitative analysis and cannot be popularized and applied, and meanwhile, the technical problem that mark marks disappear after forming friction is marked on a sheet is solved.

In order to achieve the purpose, the utility model provides the following technical scheme:

a plate forming flow characterization line marking tool comprises a circular central connecting area and a measuring scale connected to the outer circumference of the central connecting area in a sliding mode;

the one end that the dipperstick kept away from the joining region of central authorities is provided with the fixation clamp, the locating hole has been seted up on the dipperstick.

Preferably, the measuring scale is a telescopic measuring scale.

Preferably, the measuring tape is a tape measure.

Preferably, the tape measure is made of metal.

Preferably, the number of the measuring scales is 8.

Compared with the prior art, the utility model has the following beneficial effects:

1. the plate forming flowing characterization line marking tool provided by the utility model converts empirical judgment into a marking tool, has the capability of being suitable for the deformation states of plates in various shapes, is ingenious in design, simple to operate and intuitive in display, and can accurately and intuitively characterize the inflow change of the plates in the forming process so as to evaluate the reliability of a stamping simulation result.

2. The plate forming flowing characterization line marking tool provided by the utility model can be freely adjusted in the measuring direction, the size change degree and the point selection according to the actual situation, and the selection can be fixed so as to contrast the point position change before and after deformation to characterize the plate deformation flowing state.

3. The plate forming flowing characterization line marking tool provided by the utility model can be suitable for various special-shaped plates and special-shaped parts, simply and conveniently realizes characterization of a deformation flowing state, is used for quantitatively verifying the reduction degree of a simulation forming process, has simple structure, simple and convenient operation and ingenious design, characterizes the plate flowing trend, changes a three-dimensional shape into a quantifiable shape, simultaneously avoids the problem that mark marks disappear after forming friction is marked on the plates, compares a forming simulation result with an actual result to judge the reliability of the simulation result and guides simulation reduction to the actual production process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the retaining clip;

FIG. 3 is a rectangular sheet material indicia illustration;

in the figure, 1 is a central connection area, 2 is a measuring scale, 21 is a positioning hole, and 3 is a fixing clamp.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the present invention provides a plate forming flow characterization line marking tool, which includes a circular central connection area 1 and a measuring ruler 2 slidably connected to an outer circumference of the central connection area 1;

the one end that dipperstick 2 kept away from central authorities joining region 1 is provided with fixation clamp 3, locating hole 21 has been seted up on the dipperstick 2.

In the present invention, the measuring scale 2 is a telescopic measuring scale.

In the present invention, the measuring tape 2 is a tape measure.

In the utility model, the measuring tape is made of metal.

In the present invention, the number of the measuring sticks 2 is 8.

According to the plate forming flow characteristic line marking tool provided by the utility model, 8 telescopic measuring scale joints are distributed in the central link zone and are connected in a slidable manner, and the telescopic measuring scales can slide randomly along the circles and stay at each position; the telescopic measuring ruler is a metal measuring tape, and positioning holes 21 are uniformly distributed in the center of the ruler and used for taking points at the proper positions of the plates; as shown in fig. 2, the fixing clip 3 is preferably a clamping device made of internal metal and external rubber, which is curved in shape and can be formed by bending a metal plate, and the position of the measuring head can be fixed on the sheet or the formed part for determining the size change of the sheet at the corresponding position.

The specific application method of the utility model is as follows:

the method comprises the steps of forming a front plate, selecting a proper position and proper measurement characteristic points according to the shape of the plate and the shape of a formed part, wherein the selected path corresponds to eight telescopic measuring scales in eight directions of O-D1 and O-D2.. And (3) positioning each point position on the plate material in the center of one positioning hole of the telescopic measuring ruler, if the point position is not in the center of the positioning hole, adjusting the direction of the telescopic measuring ruler, wherein no transposition is adopted in the embodiment, and marking the central point positions Z1 and Z2..

And (4) the operation steps of the deformed sheet are the same as the process, the moving distance is shifted corresponding to the viewpoint of each point, and the representation of sheet flowing is finished.

And in the two-dimensional plane, the displacement of two points can represent the flowing condition of the plate. Meanwhile, the change of each point of the plate can correspond to the point in the simulation result one by one, so that the forming simulation reduction degree of the plate is correspondingly explained.

The method considers the outer contour and the inner plate, and represents more comprehensively and accurately by fixed-point displacement.

The utility model scientifically marks point positions and can accurately quantify the plate flowing state of each part.

The above are merely preferred embodiments of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by the equivalent or modified embodiments and the modified concepts of the present invention.

Claims (5)

1. A plate forming flow characterization line marking tool is characterized by comprising a circular central connecting area and a measuring scale which is connected to the outer circumference of the central connecting area in a sliding manner;

the one end that the dipperstick kept away from the joining region of central authorities is provided with the fixation clamp, the locating hole has been seted up on the dipperstick.

2. The sheet forming flow characterization line identification tool of claim 1, wherein the measurement ruler is a telescopic measurement ruler.

3. A sheet forming flow characterizing line marking tool as claimed in claim 2, wherein the measuring ruler is a tape measure.

4. A sheet forming flow characterizing line marking tool as claimed in claim 3, wherein the tape measure is of metal.

5. A sheet forming flow characterization line indicator tool according to any one of claims 1-4, wherein the number of said measuring ruler is 8.

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