Disclosure of utility model
The utility model aims to solve the technical problem of providing a device which is low in cost and is operated and used for measuring the wall thickness of the special-shaped position of the hollow transmission shaft.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft comprises:
The positioning seat is horizontally provided with a transmission shaft positioning hole;
The measuring seat is provided with a vertical adjusting track, the vertical adjusting track is provided with a measuring arm and a gauge stand which are parallel to each other in a sliding manner, the measuring arm and the gauge stand are parallel to the axis of the positioning hole of the transmission shaft, the measuring arm and the gauge stand are respectively provided with a measuring head and a gauge which are arranged oppositely, and the measuring head and the gauge are perpendicular to the axis of the positioning hole of the transmission shaft.
Further, scale marks are arranged on the measuring arm.
Further, the measuring arm and the gauge stand are both provided with connecting blocks, and the connecting blocks are in sliding connection with the vertical adjusting rail.
Further, a holding part is arranged on the measuring seat.
Further, the positioning seat is provided with a key bar, the key bar is provided with a transmission shaft storage bracket in a sliding manner, and the key bar and the transmission shaft storage bracket are parallel to the axis of the transmission shaft positioning hole.
Further, the positioning seat comprises a bottom plate and a supporting column, the supporting column is vertically arranged on the bottom plate, and the transmission shaft positioning hole is formed in the supporting column.
The device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft has the beneficial effects that the positioning seat is arranged for positioning and mounting of the hollow transmission shaft and mounting of the detection assembly, the transmission shaft positioning hole on the positioning seat is used for mounting the comparison part of the hollow transmission shaft and the workpiece to be measured, the vertical adjusting track of the measuring seat can realize the interval adjustment of the measuring arm and the gauge stand, when the device is used, after the interval is adjusted according to the product size, the measuring arm with the measuring head stretches into the hollow transmission shaft until the deep part reaches the position required by the drawing, the measuring head is abutted against the inner wall of the hollow transmission shaft, then the measuring head of the gauge is abutted against the outer wall of the hollow transmission shaft, and the wall thickness value of the measured position can be obtained through comparing the comparison part of the hollow transmission shaft and the gauge deviation value of the workpiece to be measured. The device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft has the advantages of simple structure and convenient operation, can realize quick and accurate wall thickness measurement on a production line, enlarges the application range of the device while ensuring the measurement precision, and reduces the cost.
Drawings
FIG. 1 is a front view of an apparatus for measuring wall thickness at a profiled location of a hollow drive shaft;
FIG. 2 is a top view of an apparatus for measuring wall thickness at a profiled location of a hollow drive shaft;
Description of the reference numerals:
1. Positioning seat, 11, transmission shaft positioning hole, 12, bottom plate, 13, support column, 14, key bar, 15, transmission shaft storage bracket, 2, measuring seat, 21, vertical adjusting track, 22, measuring arm, 221, measuring head, 222, scale mark, 23, gauge stand, 231, gauge, 24, connecting block, 25 and holding part.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The utility model provides a device for measuring the wall thickness of a special-shaped position of a hollow transmission shaft, which is applied to wall thickness measurement of the special-shaped position of the hollow transmission shaft and discrimination of the uniformity of the whole wall thickness.
Referring to fig. 1 to 2, a device for measuring wall thickness at a special-shaped position of a hollow transmission shaft according to the present utility model includes:
the positioning seat 1 is horizontally provided with a transmission shaft positioning hole 11;
the measuring seat 2 is provided with a vertical adjusting track 21, the vertical adjusting track 21 is provided with a measuring arm 22 and a gauge seat 23 which are parallel to each other in a sliding manner, the measuring arm 22 and the gauge seat 23 are parallel to the axis of the transmission shaft positioning hole 11, the measuring arm 22 and the gauge seat 23 are respectively provided with a measuring head 221 and a gauge 231 which are arranged oppositely, and the measuring head 221 and the gauge 231 are perpendicular to the axis of the transmission shaft positioning hole 11.
From the above description, the device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft has the beneficial effects that the positioning seat 1 is arranged for positioning and mounting the hollow transmission shaft and mounting the detection component, the transmission shaft positioning hole 11 on the positioning seat 1 is used for mounting the comparison piece of the hollow transmission shaft and the workpiece to be measured, the vertical adjusting track 21 of the measuring seat 2 can realize the distance adjustment between the measuring arm 22 and the gauge stand 23, when the device is used, after the distance is adjusted according to the product size, the measuring arm 22 with the measuring head 221 extends into the hollow transmission shaft until the deep part reaches the position required by the drawing, the measuring head 221 is abutted against the inner wall of the hollow transmission shaft, then the measuring head of the gauge 231 is abutted against the outer wall of the hollow transmission shaft, and the wall thickness value of the measured position can be obtained by comparing the deviation value of the comparison piece of the hollow transmission shaft and the gauge 231 of the workpiece to be measured. The device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft has the advantages of simple structure and convenient operation, can realize quick and accurate wall thickness measurement on a production line, enlarges the application range of the device while ensuring the measurement precision, and reduces the cost.
In an alternative embodiment, graduations 222 are provided on the feeler arm 22.
From the above description, it is understood that the length of the measuring arm 22 extending into the hollow transmission shaft is controlled with reference to the graduation marks 222, thereby ensuring measurement accuracy.
In an alternative embodiment, both the feeler 22 and the gauge stand 23 are provided with a connection block 24, the connection block 24 being slidingly connected to the vertical adjustment track 21.
From the above description, the distance between the measuring arm 22 and the gauge stand 23 is adjusted by adjusting the position of the connecting block 24 in the vertical adjusting track 21, so as to meet the measurement requirements of hollow transmission shafts with different sizes.
In an alternative embodiment, the measuring seat 2 is provided with a grip portion 25.
As is apparent from the above description, the grip portion 25 functions to facilitate the hand holding of a person.
In an alternative embodiment, the positioning seat 1 is provided with a key bar 14, the key bar 14 is provided with a transmission shaft storage bracket 15 in a sliding manner, and the key bar 14 and the transmission shaft storage bracket 15 are parallel to the axis of the transmission shaft positioning hole 11.
From the above description, the transmission shaft storage bracket 15 is used for placing the comparison piece or the workpiece to be measured, so that the measurement efficiency is improved, the front and rear positions of the transmission shaft storage bracket 15 can be flexibly adjusted until the transmission shaft storage bracket is at a proper position, and the stability of workpiece placement is ensured.
In an alternative embodiment, the positioning seat 1 comprises a bottom plate 12 and a supporting column 13, the supporting column 13 is vertically arranged on the bottom plate 12, and the transmission shaft positioning hole 11 is arranged on the supporting column 13.
Referring to fig. 1 to 2, a first embodiment of the present utility model is an apparatus for measuring wall thickness at a special-shaped position of a hollow transmission shaft, comprising:
The positioning seat 1 is horizontally provided with a transmission shaft positioning hole 11, and the section shape of the transmission shaft positioning hole 11 is circular;
the measuring seat 2 is provided with a vertical adjusting track 21, the vertical adjusting track 21 is provided with a measuring arm 22 and a gauge seat 23 which are parallel to each other in a sliding manner, the measuring arm 22 and the gauge seat 23 are parallel to the axis of the transmission shaft positioning hole 11, the measuring arm 22 and the gauge seat 23 are respectively provided with a measuring head 221 and a gauge table 231 which are arranged oppositely, the measuring head 221 and the gauge table 231 are perpendicular to the axis of the transmission shaft positioning hole 11, the measuring head 221 and the gauge table 231 are respectively provided with a measuring ball head, and the measuring head 221 and the measuring arm 22 are detachably connected and are convenient to replace.
Graduation marks 222 are provided on the measuring arm 22. The measuring arm 22 and the gauge stand 23 are both provided with a connecting block 24, and the connecting block 24 is in sliding connection with the vertical adjusting rail 21. The measuring seat 2 is provided with a grip portion 25. The positioning seat 1 comprises a bottom plate 12 and supporting columns 13, and cushion blocks are arranged at four corners of the bottom plate 12, so that balanced placement and convenient moving are facilitated. The support column 13 is vertically arranged on the bottom plate 12, and the transmission shaft positioning hole 11 is arranged on the support column 13. The positioning seat 1 is provided with a key bar 14, the key bar 14 is locked on the positioning seat 1 through a fastener, the key bar 14 is provided with two groups of transmission shaft storage brackets 15 in a sliding manner, and the key bar 14 and the transmission shaft storage brackets 15 are parallel to the axis of the transmission shaft positioning hole 11.
The working principle of the embodiment is that the zeroing action is performed firstly during operation. Firstly, the comparison piece placed on the transmission shaft storage bracket 15 is picked up, the measured end passes through the transmission shaft positioning hole 11 of the support column 13 until the rear half section of the workpiece is abutted against the transmission shaft positioning hole 11, then the measuring seat 2 is held by hand, the measuring arm 22 is penetrated into the comparison piece, the scale mark 222 of the measuring arm 22 is visually detected until the penetrated part reaches the place required by the drawing, at this time, the measuring head 221 is contacted with the inner surface of the comparison piece, the gauge 231 is contacted with the outer surface of the comparison piece, then the measured end of the comparison piece is slightly dragged by hand to save balance, the workpiece is prevented from interfering with the measuring arm 22, the measuring precision is ensured, the pointer of the dial of the gauge 231 is reset to zero, the reset action is finished, the detection mechanism can take out the inside of the measured workpiece, and the comparison piece is put back to the original position. When the measured workpiece is measured, the operation steps are consistent with the zero return action of the comparison part, the wall thickness value of the measured position can be obtained only by observing the offset of the dial pointer of the gauge 231 in the last step, and whether the wall thickness is uniformly deviated can be judged by moving the side wall forwards and backwards.
In summary, the device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft is provided with the positioning seat for positioning and mounting the hollow transmission shaft and mounting the detection assembly, the transmission shaft positioning hole on the positioning seat is used for mounting the comparison part of the hollow transmission shaft and the workpiece to be measured, the vertical adjustment track of the measurement seat can realize the interval adjustment of the measurement arm and the gauge stand, after the interval is adjusted according to the product size during use, the measurement arm with the measurement head stretches into the hollow transmission shaft until the deep part reaches the position required by the drawing, the measurement head is abutted against the inner wall of the hollow transmission shaft, then the measurement head of the gauge is abutted against the outer wall of the hollow transmission shaft, and the wall thickness value of the measured position can be obtained through comparing the comparison part of the hollow transmission shaft and the gauge deviation value of the workpiece to be measured. The device for measuring the wall thickness of the special-shaped position of the hollow transmission shaft has the advantages of simple structure and convenient operation, can realize quick and accurate wall thickness measurement on a production line, enlarges the application range of the device while ensuring the measurement precision, and reduces the cost.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.