阅读说明：本技术 一种管尺及管尺的制造方法 (Pipe ruler and manufacturing method thereof ) 是由 伍可文 乔宪涛 饶淋 于 2021-01-04 设计创作，主要内容包括：本发明涉及测量工具技术领域,公开了一种管尺及管尺的制造方法,其中管尺包括尺体,所述尺体为柱体形,所述尺体的外周沿其延伸方向设有刻度,所述尺体的内部沿所述尺体的中心轴方向设有安装孔,所述安装孔在所述尺体的延伸方向覆盖所述刻度,所述安装孔内设有线体,且所述线体与所述尺体相连,所述线体具有柔性且在所述尺体的中心轴方向不可伸缩。本发明解决了如何提高车内管线长度测量的精度的问题。(The invention relates to the technical field of measuring tools and discloses a pipe ruler and a manufacturing method thereof, wherein the pipe ruler comprises a ruler body, the ruler body is cylindrical, scales are arranged on the periphery of the ruler body along the extending direction of the ruler body, a mounting hole is arranged in the ruler body along the central axis direction of the ruler body, the mounting hole covers the scales in the extending direction of the ruler body, a wire body is arranged in the mounting hole and connected with the ruler body, and the wire body is flexible and can not stretch out and draw back in the central axis direction of the ruler body. The invention solves the problem of how to improve the accuracy of the measurement of the length of the pipeline in the vehicle.)

1. The pipe ruler is characterized by comprising a ruler body, wherein the ruler body is cylindrical, scales are arranged on the periphery of the ruler body along the extending direction of the ruler body, a mounting hole is formed in the inner portion of the ruler body along the central shaft direction of the ruler body, the mounting hole covers the scales in the extending direction of the ruler body, a wire body is arranged in the mounting hole and connected with the ruler body, and the wire body is flexible and cannot stretch in the central shaft direction of the ruler body.

2. A tubular rule according to claim 1 wherein the rule body is made of rubber.

3. The tube ruler of claim 2, wherein the body hardness value is shore a 20-80 degrees.

4. A pipe ruler according to claim 1, wherein the ruler body has a diameter of 6-12 mm and the wire body has a diameter of 0.5-1.5 mm.

5. The pipe ruler of claim 1, wherein the wire body is made of chemical fiber materials, aluminum wires or iron wires.

6. A pipe rule according to claim 1, characterized in that the wire body is glued to the rule body, the wire body having dimensions adapted to the mounting hole.

7. A pipe rule according to claim 1 wherein at least one end of the mounting hole extends through an end face of the rule body.

8. A method of manufacturing a pipe rule, comprising the steps of:

positioning the wire body at the central axis of a cavity of a forming die for forming the ruler body;

injecting a molten raw material into an inner cavity of the forming mold, and extruding and forming the ruler body;

and cutting off the part of the wire body extending out of the end part of the ruler body.

9. The method for manufacturing the pipe ruler according to claim 8, wherein the end face of the forming mold is provided with a through hole communicated with the cavity, and a positioning member is provided at a position of the forming mold corresponding to the through hole, and the wire body is positioned at the central axis of the cavity of the forming mold for forming the ruler body by the following steps:

one end of the wire body extends into the cavity, and the other end of the wire body extends out of the through hole and is clamped and positioned by the positioning piece.

10. A method of manufacturing a pipe rule according to claim 8 wherein the molding material is rubber.

Technical Field

The invention relates to the technical field of measuring tools, in particular to a pipe ruler and a manufacturing method thereof.

Background

In the trial production process of new automobile products, the lengths of the in-automobile pipelines (such as a nylon air pipe, a clutch oil pipe, a diesel oil pipe, a urea water pipe, a urea injection pipe, a frame harness, a transition line and the like) need to be measured so as to verify the actual production lengths of various pipelines and facilitate the accuracy of subsequent mass production. Therefore, the precision of the measurement of the in-vehicle pipeline will affect the subsequent production links, if the measurement error is too large, problems will occur during assembly and manufacturing, and the in-vehicle pipeline or other parts need to be readjusted or redesigned, which will cause unnecessary waste.

In the prior art, a ruler or a tape measure is usually adopted for measuring the pipeline in the vehicle, but the ruler has high hardness and insufficient flexibility, and cannot be completely arranged along the spatial direction of the pipeline, so that the measurement precision is low; the tape measure body is a thin-sheet steel strip, the flexibility is poor, and during measurement, the tape measure body cannot be completely arranged along the space trend of a pipeline for measurement due to the fact that the corner characteristic and the turning radius of the tape measure body are inconsistent with those of a circular pipeline, and the measurement precision is low.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: how to improve the accuracy of pipeline length measurement in the car.

In order to solve the technical problem, the invention provides a tubular ruler, which comprises a ruler body, wherein the ruler body is cylindrical, the periphery of the ruler body is provided with scales along the extending direction of the ruler body, the inside of the ruler body is provided with a mounting hole along the central axis direction of the ruler body, the mounting hole covers the scales along the extending direction of the ruler body, a wire body is arranged in the mounting hole and connected with the ruler body, and the wire body is flexible and can not stretch out and draw back along the central axis direction of the ruler body.

Further, the ruler body is made of rubber.

Further, the hardness value of the ruler body is Shore A20-80 degrees.

Further, the diameter of the ruler body is 6-12 mm, and the diameter of the wire body is 0.5-1.5 mm.

Further, the wire body is made of chemical fiber materials, aluminum wires or iron wires.

Further, the line body is bonded with the ruler body, and the size of the line body is matched with the mounting hole.

Furthermore, at least one end of the mounting hole penetrates through the end face of the ruler body.

In order to solve the above technical problem, another aspect of the present invention provides a method for manufacturing a tube ruler, which includes the following steps:

positioning the wire body at the central axis of a cavity of a forming die for forming the ruler body;

injecting a molten raw material into an inner cavity of the forming mold, and extruding and forming the ruler body;

and cutting off the part of the wire body extending out of the end part of the ruler body.

Further, the terminal surface of forming die be equipped with the through-hole of die cavity intercommunication, forming die is corresponding to the position of through-hole is equipped with the setting element, specifically fixes a line body in the central axis department of the die cavity of forming die who is used for the shaping chi body through following step:

one end of the wire body extends into the cavity, and the other end of the wire body extends out of the through hole and is clamped and positioned by the positioning piece.

Further, the molding material is rubber.

Compared with the prior art, the pipe ruler and the manufacturing method thereof have the advantages that:

according to the pipe ruler and the pipe ruler manufactured by the pipe ruler manufacturing method, the ruler body can be arranged side by side with the pipeline in the vehicle, the ruler body is of a cylindrical structure and can be completely fixed along with the trend of the pipeline, the ruler body and the pipeline can be kept consistent at the corner of the pipeline, and the accuracy of pipeline measurement is improved; the length standard that the line body did not have the elasticity as the pipe chi, and the central axis that the line body was established at the chi body is in the length of line body can not change when measuring, and measuring length is read to rethread scale, has ensured the accuracy of pipe chi self, and then has improved interior pipe line length measurement's of car precision.

Drawings

FIG. 1 is a schematic structural view of a pipe gauge according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of fig. 1 taken along section a-a.

Wherein, 1-ruler body, 2-line body.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., used herein are used in the orientation or positional relationship indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either 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 and 2, according to one aspect of the present invention, a tube ruler is provided, which includes a ruler body 1, wherein the ruler body 1 is cylindrical, scales are provided on the outer periphery of the ruler body 1 along the extending direction of the ruler body, a mounting hole is provided in the ruler body 1 along the central axis direction of the ruler body 1, the mounting hole covers the scales in the extending direction of the ruler body, a wire body 2 is provided in the mounting hole, the wire body 2 is connected to the ruler body 1, and the wire body 2 is flexible and is not stretchable in the central axis direction of the ruler body 1.

Based on the scheme, the ruler body 1 can be arranged side by side with a pipeline in a vehicle, because the ruler body 1 is of a cylindrical structure, the ruler body can be completely fixed along the direction of the pipeline, for example, the ruler body is bound with the pipeline side by side, and the pipe ruler can keep the turning path of the ruler body 1 consistent with the turning path of the pipeline at the corner of the pipeline, so that the accuracy of pipeline measurement is improved; the length standard that the line body 2 did not have the elasticity as the pipe chi, the central axis that the line body 2 was established at the chi body 1 is in the length of line body 2 can not change when measuring, has ensured the accuracy of pipe chi self, and then has improved the interior pipeline length measurement's of car precision.

As shown in FIG. 1, the outer contour of the ruler body 1 is marked with scale marks, the length of the ruler body 1 can be set according to specific conditions, and the length of the ruler body 1 in the embodiment is 2 m. Because the effect of the line body 2 is the accuracy of assurance pipe chi self, the length of line body 2 should be can cover all scales, and the line body 2 is installed in the mounting hole, so the length of mounting hole should cover the scale also.

The ruler body 1 of the embodiment is made of rubber, the rubber has flexibility, the ruler body 1 can be arranged along a pipeline, and the hardness value of the rubber ruler body 1 is Shore A20-80 degrees.

As an alternative mode, the diameter of the ruler body 1 is 6-12 mm, and the size is convenient for the ruler body 1 to be fixed with a pipeline.

The line body 2 can be made of chemical fiber materials, such as polyester yarns, nylon yarns and the like, or can be made of aluminum wires or iron wires, so that the line body 2 is flexible and can not stretch out and draw back in the direction of the central axis of the ruler body 1, and the line body 2 is used as the standard length of the pipe ruler, so that the measurement accuracy of the pipe ruler is guaranteed.

Optionally, the diameter of the wire body 2 is 0.5-1.5 mm, the wire body 2 is too thin and is easy to break after being bent for many times, and the wire body 2 is too thick and is not beneficial to deformation of the ruler body 1. Wherein, the line body 2 bonds with the chi body 1, and the specific size and the mounting hole looks adaptation of line body 2.

At least one end of the mounting hole penetrates through the end face of the ruler body.

In another aspect, the present invention provides a method for manufacturing a pipe ruler, which includes the following steps:

s1, positioning the wire body 2 at the central axis of a cavity of a forming die for forming the ruler body 1;

the cavity of the forming die is in a cylindrical shape corresponding to the ruler body 1, and two ends of the line body 2 can extend out of the die to be fixed.

And S2, injecting the raw material of the ruler body 1 in a molten state into the inner cavity of the molding die, and extruding and molding the ruler body 1.

And S3, cutting off the part of the wire body 2 extending out of the end part of the ruler body 1, so that the wire body 2 is parallel to the ruler body 1 at the end part.

Wherein, forming die's terminal surface be equipped with the through-hole of die cavity intercommunication, forming die is equipped with the setting element corresponding to the position of through-hole, specifically fixes a position the line body 2 in the central axis department of the die cavity of forming die who is used for shaping chi body 1 through following step: one end of the wire body 2 extends into the cavity, and the other end of the wire body 2 extends out of the through hole and is clamped and positioned by the positioning piece. The two ends of the wire body 2 can also extend out of the end faces of the two sides of the mold respectively for positioning, and the two ends of the wire body 2 are respectively provided with a fixing device for fastening and fixing the wire body 2.

In addition, the molding material is rubber, the ruler body 1 is formed by extrusion through the rubber, and then the part of the line body 2 extending out is cut.

To sum up, the embodiment of the invention provides a pipe ruler and a manufacturing method thereof, wherein the ruler body 1 can be arranged side by side with an in-vehicle pipeline, because the ruler body 1 is of a cylindrical structure, the ruler body can be completely fixed along the trend of the pipeline, and the ruler body 1 can be kept consistent with the pipeline at the corner of the pipeline, so that the accuracy of pipeline measurement is improved; the length standard that the line body 2 did not have the elasticity as the pipe chi, the central axis that the line body 2 was established at the chi body 1 is in the length of line body 2 can not change when measuring, has ensured the accuracy of pipe chi self, and then has improved the interior pipeline length measurement's of car precision.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.