CN218380769U

CN218380769U - Height measurement tool for center hole

Info

Publication number: CN218380769U
Application number: CN202221962180.8U
Authority: CN
Inventors: 张金龙; 梁有根; 连云祥; 邬铭铭; 金仁良; 陈永苗
Original assignee: Shaoxing Chunhui Precision Electromechanical Co ltd
Current assignee: Shaoxing Chunhui Precision Electromechanical Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-01-24
Anticipated expiration: 2032-07-27

Abstract

The application discloses height measurement frock of centre bore, it belongs to the measuring tool field. A height measurement tool for a center hole comprises: the fixing column is provided with a circular first accommodating cavity, and a threaded hole is formed in the side surface of the fixing column; the cylindrical sleeve is abutted with the fixed column; the lower end of the dial indicator is abutted against the inner side of the cylindrical sleeve; the screw is in threaded connection with the fixed column; the guide block is abutted to the outer side of the fixed column, and a circular second containing cavity is formed in the guide block; the first sliding block is connected with the guide block in a sliding manner and moves in the vertical direction; the positioning block is connected with the guide block in a sliding mode and moves in the horizontal direction, and the radian of the right end of the positioning block is the same as the diameter of the workpiece; the transmission block is fixedly connected with the positioning block; the two ends of the first spring are fixedly connected with the inner wall of the guide block and one side of the positioning block respectively; and the driving ring is fixedly connected with the upper end of the first sliding block. The utility model provides a beneficial effect lies in providing the height measurement frock of centre bore that detects the precision height.

Description

Height measurement tool for center hole

Technical Field

The application relates to the field of measuring tools, in particular to a height measuring tool for a center hole.

Background

In the machining process of the shaft parts, the shaft parts generally need to be continuously machined through a lathe, a milling machine and a grinding machine, shaft center holes have an important role in subsequent machining, and generally, the center holes are used as references in rough machining and finish machining, so the depth of the center holes needs to meet the requirements specified in process files.

The center hole is a positioning reference and a checking reference for processing the shaft parts, and if the depths of the center holes are different, the final processing quality of the shaft parts is greatly influenced.

The existing method for measuring the depth of the conical hole generally comprises the steps of selecting a reference point on the end face of a shaft, and repeatedly measuring the distance between the bottom of the hole and the reference point by using a depth gauge to obtain the depth of the conical hole.

At present, a height measuring tool with a central hole with high detection precision is not available.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

In order to solve the technical problems mentioned in the background section above, some embodiments of the present application provide a height measuring tool for a central hole, including a fixing column having a circular first cavity, a side surface of which is provided with a threaded hole; the cylindrical sleeve is abutted against the inner wall of the first containing cavity and is opposite to the threaded hole; the lower end of the dial indicator is in interference fit with the inner side of the cylindrical sleeve; the bolt is in threaded connection with the threaded hole; the guide block is abutted to the outer side of the fixed column, and a circular second containing cavity is formed in the guide block; the first sliding block is connected with the guide block in a sliding manner and moves in the vertical direction; the positioning block is connected with the guide block in a sliding mode and moves in the horizontal direction, and the radian of the right end of the positioning block is the same as the diameter of the workpiece; the transmission block is fixedly connected with the positioning block and is provided with an inclined plane extending along the axial direction and the radial direction; the two ends of the first spring are fixedly connected with the inner wall of the guide block and one side of the positioning block respectively; and the driving ring is fixedly connected with the upper end of the first sliding block.

Furthermore, the guide block is provided with a first sliding chute and a second sliding chute; the first sliding groove extends along the axial direction to enable the first sliding block to move in the vertical direction; the second chute second cavity extends in the radial direction to enable the positioning block to move in the horizontal direction.

Furthermore, the guide block is detachably mounted on the outer side of the fixing column; the guide block and the fixing column are fixed through screws.

Further, the drive ring and the first slider are fixed by screws.

Further, the transmission block and the positioning block are fixed through screws.

Furthermore, chamfers for preventing hands from being scraped are arranged at two ends of the fixing column.

Further, the height measurement frock of centre bore still includes: a limiting block; and the limiting block is fixedly connected with the upper end of the guide block and used for limiting the position of the first sliding block.

The beneficial effect of this application lies in: the utility model provides a height measurement frock of centre bore that concrete detection precision is high.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.

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

In the drawings:

FIG. 1 is an overall schematic diagram according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a portion of the embodiment, primarily illustrating the structure of the actuator block and the positioning block;

fig. 3 is a schematic structural view of a part of the embodiment, mainly illustrating the structure of the positioning portion.

Reference numerals:

100. a height measuring tool for the central hole; 101. fixing a column; 101a, a first cavity; 101b, a threaded hole; 101c, chamfering; 102. a cylindrical sleeve; 103. a dial indicator; 104. a bolt; 105. a guide block; 105a, a second cavity; 105b, a first chute; 105c, a second chute; 106. a first slider; 107. positioning blocks; 107a, a positioning part; 108. a transmission block; 108a, a bevel; 109. a first spring; 110. a drive ring; 111. and a limiting block.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and the embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.

It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.

It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.

It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 3, a center hole height measuring tool 100 includes: the device comprises a fixing component, a detection component and a positioning component;

the fixed subassembly includes: fixed column 101, cylindrical sleeve 102, bolt 104. The fixing column 101 is provided with a first circular accommodating cavity 101a, a threaded hole 101b is formed in the side face of the fixing column 101, and chamfers 101c for preventing hands from being scraped are arranged at two ends of the fixing column 101; the cylindrical sleeve 102 abuts against the inside of the fixing column 101 and is opposite to the threaded hole. The bolt 104 is screwed into the screw hole 101 b. The detection assembly comprises: and a dial indicator 103. The lower end of the dial indicator 103 is in interference fit with the inner side of the cylindrical sleeve 102, and the cylindrical sleeve 102 and the cylindrical shell at the lower end of the dial indicator 103 are fixed with the fixing column 101 through a bolt 104.

The positioning assembly comprises: the device comprises a guide block 105, a first slide block 106, a positioning block 107, a transmission block 108, a first spring 109, a driving ring 110 and a limiting block 111.

The guide block 105 is abutted with the outer side of the fixed column 101, a circular second containing cavity 105a is formed in the guide block 105, and the guide block 105 is provided with a first sliding groove 105b and a second sliding groove 105c; the first sliding groove 105b extends axially along the second accommodating cavity 105a, the second sliding groove 105c extends radially along the second accommodating cavity 105a, the guide block 105 is detachably mounted on the outer side of the fixing column 101, and the guide block 105 and the fixing column 101 are fixed through screws. The first slider 106 is slidably connected to the guide block 105 and moves in the vertical direction. The positioning block 107 is slidably connected to the guide block 105, and moves in the horizontal direction, and a positioning portion 107a having the same diameter as the workpiece is provided at the right end thereof. The driving block 108 is fixedly connected with the positioning block 107 through screws, and is provided with a 108a extending along the axial direction and the radial direction and an inclined surface 108a. Two ends of the first spring 109 are fixedly connected with the inner wall of the guide block 105 and one side of the positioning block 107 respectively. The driving ring 110 is fixedly connected with the upper end of the first slide block 106 through screws. The limiting block 111 is fixedly connected with the upper end of the guide block 105 and used for limiting the position of the first sliding block 106.

When the height of the center hole is detected, firstly, the dial indicator 103 is calibrated by using a calibration block, after calibration, the rod body parts of the cylindrical sleeve 102 and the dial indicator 103 are fixed by rotating the bolt 104, then the guide block 105 is fixed on the outer side of the fixed column 101 through a screw, then the driving ring 110 is pushed to move, the driving ring 110 moves to drive the first slide block 106 to vertically move along the first sliding groove 105b, the first slide block 106 moves to drive the positioning block 107 to horizontally move along the second sliding groove 105c through the driving block 108, so that the positioning part 107a positions the workpiece, the center of the workpiece is concentric with the center of the detection rod of the dial indicator 103, the detection precision is improved, then the height of the ball is detected through the detection rod of the dial indicator, the depth of the center hole is detected, the operation is simple, the center of the workpiece is concentric with the center of the detection rod of the dial indicator 103, the depth of the center hole can be quickly detected, and the detection precision is high.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) the features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.

Claims

1. A height measurement tool for a center hole comprises:

the fixing column is provided with a circular first accommodating cavity, and a threaded hole is formed in the side surface of the fixing column;

the cylindrical sleeve is abutted against the inner wall of the first containing cavity and is opposite to the threaded hole;

the lower end of the dial indicator is in interference fit with the inner side of the cylindrical sleeve;

the method is characterized in that:

the height measurement frock of centre bore still includes:

the bolt is in threaded connection with the threaded hole;

the guide block is abutted to the outer side of the fixed column, and a circular second containing cavity is formed in the guide block;

the first sliding block is connected with the guide block in a sliding manner and moves in the vertical direction;

the positioning block is connected with the guide block in a sliding manner, moves in the horizontal direction, and the radian of the right end of the positioning block is the same as the diameter of the workpiece;

the transmission block is fixedly connected with the positioning block and is provided with an inclined plane extending along the axial direction and the radial direction;

the two ends of the first spring are fixedly connected with the inner wall of the guide block and one side of the positioning block respectively;

and the driving ring is fixedly connected with the upper end of the first slide block.

2. The height measurement tool for the central hole according to claim 1, characterized in that:

the guide block is provided with a first sliding chute and a second sliding chute;

the first sliding groove extends along the axial direction to enable the first sliding block to move in the vertical direction;

the second chute second cavity extends in the radial direction to enable the positioning block to move in the horizontal direction.

3. The height measurement frock of centre bore of claim 1, characterized in that:

the guide block is detachably arranged on the outer side of the fixed column;

the guide block and the fixing column are fixed through screws.

4. The height measurement frock of centre bore of claim 1, characterized in that:

the driving ring and the first slide block are fixed by screws.

5. The height measurement tool for the central hole according to claim 1, characterized in that:

the transmission block and the positioning block are fixed through screws.

6. The height measurement frock of centre bore of claim 1, characterized in that:

and chamfers for preventing hands from being scraped are arranged at two ends of the fixing column.

7. The height measurement frock of centre bore of claim 1, characterized in that:

the height measurement frock of centre bore still includes: a limiting block;

and the limiting block is fixedly connected with the upper end of the guide block and used for limiting the position of the first sliding block.