CN216246056U - Coaxiality detection tool for cylindrical part with threads at two ends - Google Patents

Abstract

The utility model discloses a coaxiality detection tool for a cylindrical part with threads at two ends, which comprises a workbench frame, a bearing box, a rotating shaft, a left thread sample ring, a right thread sample ring and a dial indicator, wherein the workbench frame is provided with a bearing box; the right side of the upper surface of the working table frame is connected with the rotating shaft which is horizontally arranged through a bearing box, the left end of the rotating shaft is fixed with the right end thread sample ring, and the right end thread sample ring is used for connecting a right end thread section of a part to be measured; the left end thread sample ring is used for connecting a left end thread section of the part to be detected; and the left side of the upper surface of the working rack is provided with two dial indicators through a dial indicator bracket respectively, and the two dial indicators are used for measuring the coaxiality of the outer wall of the thread sample ring at the left end and the middle cylindrical section of the part to be measured respectively. The coaxiality detection tool can quickly detect whether the coaxiality of the threaded sections at the two ends and the cylindrical section in the middle of the part to be detected meets the design requirements or not.

Description

Coaxiality detection tool for cylindrical part with threads at two ends

Technical Field

The utility model relates to a coaxiality detection tool for a cylindrical part with threads at two ends, and belongs to the technical field of quality detection.

Background

The processing part of a certain product has connecting thread for both ends tip outer wall all processes, and for guaranteeing that this part is smooth with the assembly of other parts, after this parts machining, still need carry out the axiality to it and detect, specifically be the external screw thread section that detects this part both ends to and whether satisfy the axiality requirement between the middle part cylinder section. In the traditional process, a three-coordinate measuring instrument is usually adopted for measuring when the coaxiality of parts is detected, the three-coordinate measuring instrument cannot pick up a measuring point at a reference thread to fit a reference surface, a cylindrical matching surface of a reference thread end is required to be used as a reference for detection in actual measurement, and the three-coordinate measuring instrument needs to detect various parts, so that the measurement efficiency is low, and the production efficiency is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of low detection efficiency, large detection error and the like when a traditional coaxiality detection method is used for detecting a cylindrical part with external thread sections at two ends, and provides a coaxiality detection tool for the cylindrical part with threads at two ends.

The purpose of the utility model is realized by the following technical scheme:

the utility model relates to a coaxiality detection tool for a cylindrical part with threads at two ends, which comprises a workbench frame, a bearing box, a rotating shaft, a left thread sample ring, a right thread sample ring and a dial indicator, wherein the workbench frame is provided with a bearing box;

the upper surface of the working table frame is a supporting plane, the right side of the upper surface of the working table frame is fixedly provided with the bearing box, the bearing box is rotatably connected with the rotating shaft which is horizontally arranged through a bearing, the left end of the rotating shaft is fixed with the right end thread sample ring, the axis of the right end thread sample ring is consistent with the axis of the rotating shaft, the inner wall of the right end thread sample ring is provided with an internal thread matched with the right end thread section of the part to be detected, and the right end thread sample ring is used for connecting the right end thread section of the part to be detected; the inner wall of the left end thread sample ring is provided with an internal thread matched with the left end thread section of the part to be detected, and the left end thread sample ring is used for connecting the left end thread section of the part to be detected; and the left side of the upper surface of the working rack is provided with two dial indicators through a dial indicator bracket respectively, and the two dial indicators are used for measuring the coaxiality of the outer wall of the thread sample ring at the left end and the middle cylindrical section of the part to be measured respectively.

In order to facilitate the rotation of the rotating shaft, a handle is fixed at the right end of the rotating shaft.

Working process

When the coaxiality is detected, firstly, the right end of the part to be detected is in threaded connection with the right end thread sample ring, and then the left end thread sample ring is in threaded connection with the left end of the part to be detected; then adjusting the mounting positions of the two dial indicators on the connected dial indicator bracket to enable the detection heads of the two dial indicators to respectively abut against the outer wall of the thread sample ring at the left end and the outer wall of the middle cylindrical section of the part to be detected; and finally, rotating the rotating shaft through the handle so as to drive the part to be detected and the left end thread sample ring and the right end thread sample ring connected with the two ends of the part to be detected to rotate around the shaft center, and observing the reading change of the two dial indicator pointers after the rotating shaft rotates for a circle so as to judge whether the thread sections at the two ends of the part to be detected and the coaxiality of the middle cylindrical section of the part to be detected meet the design requirements or not.

Advantageous effects

The coaxiality detection tool is simple in structure, convenient to assemble and high in detection efficiency, can quickly detect whether the coaxiality of the threaded sections at the two ends and the cylindrical section in the middle of the part to be detected meets the design requirements or not, ensures the product quality of the part, meets the requirement of mass production, and has wide popularization and application values.

Drawings

FIG. 1 is a schematic structural view of a coaxiality detection tool according to the present invention;

in the figure, 1 — the working gantry; 2-a bearing housing; 3-a rotating shaft; 4-left end thread sample ring; 5-right end thread sample ring; 6-dial indicator; 7-a bearing; 8-dial indicator support; 9-handle.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Examples

As shown in FIG. 1, the coaxiality detection tool for the cylindrical part with threads at two ends comprises a working bench 1, a bearing box 2, a rotating shaft 3, a left thread sample ring 4, a right thread sample ring 5 and a dial indicator 6;

the upper surface of the working table frame 1 is a supporting plane, the bearing box 2 is fixed on the right side of the upper surface of the working table frame 1, the bearing box 2 is rotatably connected with the rotating shaft 3 which is horizontally arranged through a bearing 7, the left end of the rotating shaft 3 is fixed with the right end thread sample ring 5, the axis of the right end thread sample ring 5 is consistent with the axis of the rotating shaft 3, the inner wall of the right end thread sample ring 5 is processed with internal threads matched with the right end thread section of the part to be measured, and the right end thread sample ring 5 is used for connecting the right end thread section of the part to be measured; the inner wall of the left end thread sample ring 4 is provided with an internal thread matched with the left end thread section of the part to be detected, and the left end thread sample ring 4 is used for connecting the left end thread section of the part to be detected; two dial indicators 6 are respectively installed on the left side of the upper surface of the working rack 1 through a dial indicator bracket 8, and the two dial indicators 6 are respectively used for measuring the coaxiality of the outer wall of the thread sample ring 4 at the left end and the middle cylindrical section of the part to be measured.

In order to facilitate the rotation of the rotating shaft 3, a handle is fixed at the right end of the rotating shaft 3.

Working process

When the coaxiality is detected, firstly, the right end of the part to be detected is in threaded connection with the right end thread sample ring 5, and then the left end thread sample ring 4 is in threaded connection with the left end of the part to be detected; then adjusting the mounting positions of the two dial indicators 6 on the connected dial indicator bracket 8, and enabling the detection heads of the two dial indicators 6 to respectively abut against the outer wall of the left end thread sample ring 4 and the outer wall of the middle cylindrical section of the part to be detected; and finally, rotating the rotating shaft 3 through a handle so as to drive the part to be detected and the left end thread sample ring 4 and the right end thread sample ring 5 connected with the two ends of the part to be detected to rotate around the shaft center, and observing the reading change of the pointers of the two dial indicators 6 after the rotating shaft 3 rotates for a circle so as to judge whether the coaxiality of the thread sections at the two ends of the part to be detected and the middle cylindrical section of the part to be detected meet the design requirements or not.

Claims (2)

1. The utility model provides a axiality of both ends area screw thread cylinder detects frock which characterized by: the device comprises a workbench frame, a bearing box, a rotating shaft, a left end thread sample ring, a right end thread sample ring and a dial indicator;

the upper surface of the working table frame is a supporting plane, the right side of the upper surface of the working table frame is fixedly provided with the bearing box, the bearing box is rotatably connected with the rotating shaft which is horizontally arranged through a bearing, the left end of the rotating shaft is fixed with the right end thread sample ring, the axis of the right end thread sample ring is consistent with the axis of the rotating shaft, the inner wall of the right end thread sample ring is provided with an internal thread matched with the right end thread section of the part to be detected, and the right end thread sample ring is used for connecting the right end thread section of the part to be detected; the inner wall of the left end thread sample ring is provided with an internal thread matched with the left end thread section of the part to be detected, and the left end thread sample ring is used for connecting the left end thread section of the part to be detected; and the left side of the upper surface of the working rack is provided with two dial indicators through a dial indicator bracket respectively, and the two dial indicators are used for measuring the coaxiality of the outer wall of the thread sample ring at the left end and the middle cylindrical section of the part to be measured respectively.

2. The coaxiality detection tool according to claim 1, wherein: a handle is fixed at the right end of the rotating shaft.

Images