CN211696130U

CN211696130U - Measuring tool for measuring length of thin rod of part

Info

Publication number: CN211696130U
Application number: CN201922458073.6U
Authority: CN
Inventors: 董永胜; 郝亮; 冀晋辉; 陈攀; 袁树明
Original assignee: Beijing Singukeller Automotive Cold Forming Parts Inc
Current assignee: Beijing Singukeller Automotive Cold Forming Parts Inc
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-16
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a measuring tool for measuring part slender rod length, include: the device comprises a first cylinder, a second cylinder, a third cylinder, a dial indicator, a center rod, a spring, a bolt and a base platform. The first cylinder, the second cylinder and the third cylinder are precisely assembled together and connected by two bolts. The center rod and the spring are arranged in the center rod, the center rod and the spring can freely slide left and right under the interaction of the spring and external force, and the rear end of the center rod is in contact with a probe of the dial indicator. The function of the base platform is to support the entire device. The whole measuring tool is checked and adjusted. A standard sample rod with a known length and a known diameter is manufactured in advance, and after the sample rod is loaded into a measuring tool, the reading of a calibration dial indicator is zero. The part to be measured is loaded into the first cylinder, and the flange surface of the part to be measured is in close contact with the end surface of the first cylinder. The utility model discloses a measuring tool for measuring part slender pole length can be fast accurate come out required dimensional measurement, other measurement methods relatively, have simplified measurement greatly, have reduced personnel's intensity of labour, have improved personnel's labor efficiency.

Description

Measuring tool for measuring length of thin rod of part

Technical Field

The utility model belongs to the automobile parts production field, concretely relates to measuring tool for measuring part slender rod length.

Background

The traditional method for measuring the length of the slender rod of the part is to use a vernier caliper to measure. However, the operation difficulty is high, the small end face is not flat, the flange measuring face has tiny concave-convex, and the thin rod is thin, and can be bent by applying a slight force during the test, so that the measuring result changes, and therefore, the vernier caliper has large measuring error, and the precision requirement is difficult to guarantee.

In addition, the labor intensity of operators is high during detection in the mode, if tens of thousands of products need to be detected one by one, the operators can repeatedly perform mechanical labor for a long time, and the eyes, hands, shoulders and other parts are very tired. Secondly, the sorting efficiency is low, and the production measurement requirements of tens of thousands of products are difficult to meet. In view of the situation, a convenient and fast measuring means is urgently needed in the production field.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem of the great and inconvenient use of the low error of the current detecting instrument precision, the utility model provides a measuring tool for measuring part slender rod length that swift convenience and measurement accuracy are high.

In order to realize the above object, the utility model adopts the following technical scheme: a measuring tool for measuring the length of a thin rod of a part comprises a first cylinder, a second cylinder, a third cylinder, a dial indicator, a center rod, a spring, a bolt and a base platform. The dial indicator is fixedly arranged at the rear end of the base platform through an indicator frame; the first cylinder, the second cylinder and the third cylinder are precisely assembled together and are connected together by two bolts, and the first cylinder, the second cylinder and the third cylinder are arranged at the front end of the base platform; the spring is arranged between the central rod and the bolt; the rear end of the center rod is contacted with a probe of the dial indicator.

The first cylinder, the second cylinder and the third cylinder of the measuring tool are connected by two M6 bolts. The center rod and the spring are arranged in the center rod, the center rod can freely slide left and right under the interaction of the spring and external force, and the rear end of the center rod is in contact with a probe of the dial indicator. The function of the base platform is to support the entire device.

The entire measuring device is checked and adjusted before the measurement. Standard bars of known length and diameter are prefabricated and, after the bars are loaded into the gauge, the dial indicator is calibrated to read zero.

The part to be measured is loaded into the first cylinder, and the flange surface of the part to be measured is in close contact with the end surface of the first cylinder. At the moment, the small head end of the part pushes the central rod to move, the other end of the central rod pushes the dial indicator, the indication number of the dial indicator is the difference between the actual slender rod length and the drawing standard length, if the difference value is smaller than 0.05mm, the length of the slender rod of the part is qualified, and otherwise, the part is unqualified.

Preferably, the standard bar has a length of 61mm, a diameter of 4.5mm, and a measurement error of only 0.05 mm.

The utility model discloses can be fast accurate come out required dimensional measurement, other measurement methods relatively have simplified measurement greatly, have reduced personnel's intensity of labour, have improved personnel's labor efficiency. Compared with a vernier caliper sorting mode, the production efficiency is improved by more than 5 times, and 2500 pieces of sorting work can be completed every 8 hours. In addition, by adopting the checking fixture for operation, the influence of human factors on measurement can be greatly reduced, the reliability is greatly improved, the measurement result is highly reliable, and the probability of misjudgment is small to be ignored.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

The above description is only exemplary embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Drawings

FIG. 1 is a schematic structural diagram of a gauge for measuring the length of a slender rod of a part according to the present invention;

wherein: 1-first cylinder, 2-second cylinder, 3-third cylinder, 4-dial indicator, 5-center rod, 6-spring, 7-bolt, 8-base platform.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

As shown in fig. 1, a measuring tool for measuring the length of a thin rod of a part comprises a first cylinder 1, a second cylinder 2, a third cylinder 3, a dial indicator 4, a central rod 5, a spring 6, a bolt 7 and a base platform 8, wherein the dial indicator 4 is fixedly mounted at the rear end of the base platform 8 through an indicator frame; the first cylinder 1, the second cylinder 2 and the third cylinder 3 are precisely assembled together and connected together by two M6 bolts 7, and the first cylinder 1, the second cylinder 2 and the third cylinder 3 are arranged at the front end of the base platform 8; the spring 6 is between the central rod 5 and the bolt 7; the rear end of the center rod 5 is in contact with the probe of the dial indicator 4.

The bolt 7 is M6, the bolt 7 has two, well rod 5 is under the interact of spring 6 and external force, and well rod can freely slide from side to side, the minimum scale of percentage table 4 is 0.01 mm.

The part to be measured is loaded into the first cylinder 1, and the flange surface of the part is in close contact with the end surface of the first cylinder 1. At the moment, the small head end of the part pushes the central rod 5 to move, the other end of the central rod 5 pushes the dial indicator 4, the indication number of the dial indicator 4 is the difference between the actual thin rod length and the drawing standard length, if the difference value is smaller than 0.05mm, the length of the thin rod of the part is qualified, and otherwise, the part is unqualified.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. The utility model provides a measure of measurement part pin length which characterized in that: the measuring tool comprises a first cylinder (1), a second cylinder (2), a third cylinder (3), a dial indicator (4), a central rod (5), a spring (6), a bolt (7) and a base platform (8), wherein the dial indicator (4) is fixedly arranged at the rear end of the base platform (8) through an indicator frame; the first cylinder (1), the second cylinder (2) and the third cylinder (3) are precisely assembled together and connected together by two bolts (7), and the first cylinder (1), the second cylinder (2) and the third cylinder (3) are arranged at the front end of the base platform (8); the spring (6) is arranged between the central rod (5) and the bolt (7); the rear end of the center rod (5) is contacted with a probe of the dial indicator (4).

2. A gauge for measuring the length of a pin for a part according to claim 1, wherein: the bolt (7) is M6.

3. A gauge for measuring the length of a pin for a part according to claim 1, wherein: the central rod (5) can freely slide left and right under the mutual action of the spring (6) and external force.

4. A gauge for measuring the length of a pin for a part according to claim 1, wherein: the minimum scale of the dial indicator (4) is 0.01 mm.

5. A gauge for measuring the length of a pin for a part according to claim 2, wherein: two bolts (7) are arranged.