A lathe for detecting and correcting coaxiality of shaft parts

CN224650585UActive Publication Date: 2026-08-18ZHEJIANG DAJIANG PRECISION MACHINERY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522344745.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-08-18
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0004]生活中,对两个轴体进行同轴度测量的车床以及对安装座底部进行磨削的车床属于两个单独个体,对于这种长距离的搬运移动往往会浪费掉大量的时间,进而导致设备的装配效率变低

Benefits of technology

[0015]工人可将两个轴类零件分别固定在两个基座上,通过同轴度测量仪对两个轴体进行同轴度检测,发现其中一个同轴度偏差较大时,工人可直接将出现偏差较大的轴类零件固定在车床本体上设置的固定件上,并通过磨削件对安装座的底面进行磨削,不需要工人对轴类零件进行长距离搬运移动,以提升设备的装配效率。

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Abstract

The application discloses a lathe for shaft part coaxiality detection and correction, and belongs to the shaft part coaxiality detection field.The lathe comprises a lathe body, a base, a coaxiality measuring instrument, a fixing piece and a grinding piece; two bases are arranged, and the side of the base away from the detection platform is in contact with the bottom surface of the mounting seat; the coaxiality measuring instrument is used for detecting the shaft body; the fixing piece is used for fixing the mounting seat; and the grinding piece is used for grinding the bottom surface of the mounting seat fixed on the fixing piece.The beneficial effect is that the coaxiality measuring instrument detects the coaxiality of two shaft bodies, when the coaxiality deviation of one of the shaft bodies is relatively large, the worker can directly fix the shaft part with relatively large deviation on the fixing piece arranged on the lathe body, and grind the bottom surface of the mounting seat through the grinding piece, so that the worker does not need to move the shaft part for a long distance, and the assembly efficiency of the equipment is improved.
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Description

Technical Field

[0001] This application relates to the field of coaxiality testing of shaft parts, and more specifically, to a lathe for coaxiality testing and correction of shaft parts. Background Technology

[0002] During equipment assembly, ensuring that the two shafts, each fixed to an independent mounting base, remain coaxial is a critical requirement. When coaxiality deviation occurs, it is often due to flatness errors or burrs on the bottom surface of one of the mounting bases, resulting in poor contact with the platform and tilting.

[0003] Currently, a coaxiality measuring instrument is mainly used to measure the two shafts. If a large coaxiality deviation is found in one of them, the worker will disassemble the mounting base, move it to another grinding position, fix the mounting base, and grind the bottom surface of the mounting base with a file. After grinding, the coaxiality of the two shafts is checked again until the coaxiality of the two shafts is the same.

[0004] In everyday life, a lathe that measures the coaxiality of two shafts and a lathe that grinds the bottom of the mounting base are two separate entities. Such long-distance handling and movement often wastes a lot of time, which in turn leads to lower equipment assembly efficiency. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a lathe for coaxiality detection and correction of shaft parts, comprising: a shaft body, a mounting base, a lathe body, a base, a coaxiality measuring instrument, a fixing component, and a grinding component; the shaft body is rotatably connected to the mounting base, and the shaft body and the mounting base form a shaft part; the lathe body is provided with a detection platform; two bases are provided, both of which are disposed on the detection platform, and the side of the base facing away from the detection platform contacts the bottom surface of the mounting base; the coaxiality measuring instrument is disposed on one side of the detection platform; the coaxiality measuring instrument is used to detect the shaft body; the fixing component and the grinding component are both disposed on the detection platform, the fixing component is used to fix the mounting base; the grinding component is used to grind the bottom surface of the mounting base fixed on the fixing component.

[0007] Furthermore, when the two mounting seats are respectively fixed on the two bases, a gap is provided between the two shafts.

[0008] Furthermore, the lathe body is also provided with a guide rail and a slider; the guide rail is arranged along the length direction of the shaft, and the slider is slidably connected to the guide rail; the coaxiality measuring instrument has a probe, the probe is used to detect the shaft, and the end of the coaxiality measuring instrument opposite to the probe is arranged on the slider.

[0009] Furthermore, the length of the guide rail is greater than the distance between the two mounting seats placed on the two bases.

[0010] Furthermore, the base includes: a first block and a second block; one end of the first block and the second block are fixedly connected to the detection platform, and the side of the first block and the second block facing away from the detection platform is in contact with the bottom surface of the mounting base; a receiving gap is provided between the first block and the second block.

[0011] Furthermore, the lathe body is also equipped with an air pump, an air gun, and a connecting pipe; one end of the connecting pipe is connected to the air gun, and the other end of the connecting pipe is connected to the output end of the air pump; the air gun is used to clean the bottom surface of the mounting base.

[0012] Furthermore, the fastener is a bench vise or flat-jaw pliers.

[0013] Furthermore, the grinding component is a file, sandpaper, or angle grinder.

[0014] The beneficial effects of this application are as follows:

[0015] Workers can fix two shaft parts onto two bases respectively, and use a coaxiality measuring instrument to check the coaxiality of the two shafts. If one of them has a large coaxiality deviation, the worker can directly fix the shaft part with the large deviation onto the fixing part set on the lathe body, and grind the bottom surface of the mounting base with a grinding tool. This eliminates the need for workers to move the shaft parts over long distances, thereby improving the assembly efficiency of the equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1This is an overall schematic diagram based on an embodiment of this application;

[0020] Figure 2 yes Figure 1 The enlarged view of part A mainly shows the structure of the coaxiality measuring instrument, the probe, and the shaft.

[0021] Figure label:

[0022] 1. Shaft; 2. Mounting base; 3. Lathe body; 31. Inspection platform; 32. Base; 33. Coaxiality measuring instrument; 331. Probe; 34. Bench vise; 4. Guide rail; 5. Slider; 6. Air pump; 7. Connecting pipe; 8. Air gun. Detailed Implementation

[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0024] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Reference Figure 1-2 ,

[0029] A lathe for detecting and correcting the coaxiality of shaft parts includes: a shaft body 1, a mounting base 2, a lathe body 3, a base 32, a coaxiality measuring instrument 33, a fixing component, and a grinding component; the grinding component is a file, sandpaper, or an angle grinder. In this embodiment, the grinding component is preferably a file. The shaft body 1 is rotatably connected to the mounting base 2, and the shaft body 1 and the mounting base 2 form a shaft part; the lathe body 3 is provided with a detection platform 31; two bases 32 are provided, both of which are set on the detection platform 31, and the side of the base 32 facing away from the detection platform 31 is in contact with the bottom surface of the mounting base 2; the coaxiality measuring instrument 33 is set on one side of the detection platform 31; the coaxiality measuring instrument 33 is used to detect the shaft body 1; the fixing component and the grinding component are both set on the detection platform 31, the fixing component is used to fix the mounting base 2; the grinding component is used to grind the bottom surface of the mounting base 2 fixed on the fixing component. Workers can fix two shaft parts onto two bases 32 respectively, and use a coaxiality measuring instrument 33 to test the coaxiality of the two shafts 1. If one of them is found to have a large coaxiality deviation, the worker can directly fix the shaft part with the large deviation onto the fixing part set on the lathe body 3, and grind the bottom surface of the mounting base 2 with a grinding part. This eliminates the need for workers to move the shaft parts over long distances, thereby improving the assembly efficiency of the equipment.

[0030] Specifically, when the two mounting seats 2 are fixed on the two bases 32 respectively, a gap is provided between the two shafts 1 to prevent interference between the two shafts 1 on the two shaft parts when they are placed on the two bases 32 respectively, which would prevent the mounting seats 2 from being fixed on the bases 32. In other embodiments, the lathe body 3 is provided with a double-ended lead screw, a moving block, and a motor, and a guide groove is also provided on the lathe body 3. Two moving blocks are provided, and the moving blocks are threadedly connected to the double-ended lead screw. When the moving blocks are placed in the guide groove, the outer wall surface of the moving blocks is in contact with the inner wall surface of the guide groove. The output end of the motor is connected to the double-ended lead screw. The base 32 is fixedly mounted on the side of the moving block that is away from the guide groove. When the motor drives, the double-ended lead screw rotates, and the moving blocks threadedly connected to the lead screw slide along the extension direction of the guide groove, thereby making the two bases 32 move closer or further apart.

[0031] Specifically, the lathe body 3 is also equipped with a guide rail 4 and a slider 5; the guide rail 4 is arranged along the length direction of the shaft 1, and the slider 5 is slidably connected to the guide rail 4; the coaxiality measuring instrument 33 has a probe 331, which is used to detect the shaft 1, and the end of the coaxiality measuring instrument 33 opposite to the probe 331 is set on the slider 5. The guide rail 4 can provide high-precision guidance for the coaxiality measuring instrument 33, ensuring that the probe 331 moves smoothly along the generatrix of the shaft 1 during measurement, avoiding vibration or offset caused by manually holding the coaxiality measuring instrument 33.

[0032] Specifically, the length of the guide rail 4 is greater than the distance between the two mounting seats 2 placed on the two bases 32. This ensures that the probe 331 of the measuring instrument can completely measure the entire shaft 1 area between the first mounting seat 2 and the second mounting seat 2, without failing to measure certain parts of the shaft 1 due to the guide rail 4 being too short. In other embodiments, the lathe body 3 is also equipped with bolts, a motor, and a lead screw. The bolt is located on the side of the slider 5 away from the lathe body 3, and the bolt is threadedly connected to the lead screw. The output end of the motor is connected to one end of the lead screw. When the motor is driven, the output end of the motor drives the lead screw to rotate. When the lead screw rotates, the bolt, the slider 5, and the coaxiality measuring instrument 33 mounted on the slider 5 will move along the extension direction of the guide rail 4, thereby achieving automated inspection.

[0033] Specifically, the base 32 includes a first block and a second block; one end of the first block and the second block are fixedly connected to the detection platform 31, and the side of the first block and the second block facing away from the detection platform 31 is in contact with the bottom surface of the mounting base 2; a receiving gap is provided between the first block and the second block. Since a bearing is installed inside the mounting base 2, and the bearing is fixed within the mounting base 2, and the shaft 1 is rotatably connected to the bearing, a protrusion extending radially along the shaft 1 is formed on the outer surface of the mounting base 2. The receiving gap is designed to accommodate this protrusion. Specifically, both the first block and the second block are provided with threaded holes, and the mounting base 2 is provided with countersunk holes. A bolt is threaded through the countersunk holes and connected to the threaded holes to fix the mounting base 2 onto the base 32.

[0034] Specifically, the lathe body 3 is also equipped with an air pump 6, an air gun 8, and a connecting pipe 7; one end of the connecting pipe 7 is connected to the air gun 8, and the other end of the connecting pipe 7 is connected to the output end of the air pump 6; the air gun 8 is used to clean the bottom surface of the mounting base 2. After grinding, dust or metal shavings generated during grinding may exist on the bottom surface of the mounting base 2 and the surface of the base 32. The air gun 8 can clean the dust and metal shavings on the bottom surface of the mounting base 2, ensuring that when the mounting base 2 is fixed on the base 32, there is a clean metal-to-metal contact between the bottom surface of the mounting base 2 and the base 32, thereby eliminating secondary errors caused by dust or metal shavings.

[0035] Specifically, the fixing component is a bench vise 34 or flat-jaw pliers. In this embodiment, the fixing component is preferably a bench vise 34.

[0036] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A lathe for detecting and correcting the coaxiality of shaft-type parts, comprising: A shaft and a mounting base, wherein the shaft and the mounting base are rotatably connected, and the shaft and the mounting base together form a shaft-type part; Its features include: a lathe body, a base, a coaxiality measuring instrument, a fixing component, and a grinding component; The lathe body is equipped with a testing platform; Two bases are provided, and both bases are set on the detection platform. The side of the base facing away from the detection platform is in contact with the bottom surface of the mounting base. The coaxiality measuring instrument is mounted on one side of the testing platform; the coaxiality measuring instrument is used to test the shaft. Both the fixing component and the grinding component are mounted on the detection platform. The fixing component is used to fix the mounting base; the grinding component is used to grind the bottom surface of the mounting base fixed on the fixing component.

2. The lathe for coaxiality detection and correction of shaft parts according to claim 1, characterized in that: When the two mounting seats are respectively fixed on the two bases, there is a gap between the two shafts.

3. A lathe for detecting and correcting the coaxiality of shaft parts according to claim 2, characterized in that: The lathe body is also equipped with guide rails and sliders; The guide rail is arranged along the length direction of the shaft, and the slider is slidably connected to the guide rail; The coaxiality measuring instrument has a probe for detecting the shaft, and one end of the coaxiality measuring instrument away from the probe is mounted on the slider.

4. A lathe for detecting and correcting the coaxiality of shaft parts according to claim 3, characterized in that: The length of the guide rail is greater than the distance between the two mounting bases placed on the two bases.

5. A lathe for detecting and correcting the coaxiality of shaft parts according to any one of claims 1-4, characterized in that: The base includes: a first block and a second block; One end of the first block and the second block are fixedly connected to the detection platform, and the side of the first block and the second block facing away from the detection platform is in contact with the bottom surface of the mounting base; A accommodating gap is provided between the first block and the second block.

6. A lathe for detecting and correcting the coaxiality of shaft parts according to claim 5, characterized in that: The lathe body is also equipped with an air pump, an air gun, and a connecting pipe; One end of the connecting pipe is connected to the air gun, and the other end of the connecting pipe is connected to the output end of the air pump; the air gun is used to clean the bottom surface of the mounting base.

7. A lathe for detecting and correcting the coaxiality of shaft parts according to claim 1, characterized in that: The fastener is a bench vise or flat-jaw pliers.

8. A lathe for detecting and correcting the coaxiality of shaft parts according to claim 1, characterized in that: The grinding tool is a file, sandpaper, or angle grinder.