CN218511667U

CN218511667U - Measuring tool for detecting symmetry degree of circular arc and linear groove

Info

Publication number: CN218511667U
Application number: CN202222293623.5U
Authority: CN
Inventors: 周兴伟
Original assignee: CSG TRW Chassis Systems Co Ltd
Current assignee: CSG TRW Chassis Systems Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-02-21
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to a circular arc and straight line groove symmetry detect measuring tool belongs to size detection measuring tool technical field, including the main scale, reference block and scale, the downside at the scale is connected through the connecting screw symmetry to the reference block, and the reference block is the L type, and the reference block is 0.01mm at X planar straightness that hangs down and have the depth of parallelism at the Y plane, and spout and adjustment tank have been seted up to the scale, main scale and spout sliding connection, and the main scale constitutes slide caliper with the scale, and the main scale is connected with thrust screw, thrust screw and adjustment tank sliding connection, and the scale is connected with and is used for restricting the gliding locking screw of main scale. The detection measuring tool utilizes the two ends of the reference block to be tightly attached to a workpiece, the thrust screw is pushed to enable the main scale to slide along the scale and abut against the working arc surface, the distance sizes of the left surface and the right surface of the part are respectively detected, and the difference value of the obtained sizes is the symmetry degree of the arc and the linear groove.

Description

Measuring tool for detecting symmetry degree of arc and linear groove

Technical Field

The utility model belongs to the technical field of the size detection measuring tool, a circular arc and sharp recess symmetry detection measuring tool is related to.

Background

The symmetry degree of the arc groove and the straight line groove belongs to the space size, and the common vernier caliper cannot be used for direct detection, so that the existing detection method uses a three-coordinate measuring instrument, the detection cost is high, and the real-time detection on a production field is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a circular arc detects measuring tool with straight line recess symmetry connects the benchmark piece that is the L type at the downside of scale, and the work piece benchmark is hugged closely at the both ends of benchmark piece, and the main scale is connected to the upside of scale, adjusts the main scale along the scale and makes its and the arc surface butt of working, detects the part left and right sides respectively, and the difference of gained size is the symmetry of circular arc and straight line recess promptly, and this device simple structure, the testing result is reliable, the on-the-spot real-time detection of being convenient for production.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an arc and straight line recess symmetry measuring tool which characterized in that: the ruler comprises a main ruler, a reference block and a ruler, wherein the reference block is connected to the lower side of the ruler through a connecting screw, two ends of the reference block are abutted to arc grooves of a workpiece, sliding grooves and adjusting grooves are respectively formed in two adjacent surfaces of the ruler, the main ruler is connected with the sliding grooves in a sliding mode, the main ruler is connected with a thrust screw, the thrust screw is connected with the adjusting grooves in a sliding mode, the ruler is further connected with a locking screw used for limiting the sliding of the main ruler, and scale marks are engraved on the main ruler and the ruler.

Furthermore, the reference block is L-shaped, and the perpendicularity of the reference block on an X plane and the parallelism of the reference block on a Y plane are both 0.01mm.

Further, the width of the reference block is larger than the width of the circular arc groove of the workpiece, and the reference block is symmetrically arranged relative to the scale.

Furthermore, the main scale and the scale form a vernier caliper, and the precision of the scale marks carved by the main scale and the scale is 0.02mm.

The beneficial effects of the utility model reside in that:

the detection measuring tool is simple in structure and convenient to install, the main scale is driven to slide along the sliding groove of the scale by the thrust screw, when the detection end face of the main scale is in line contact with the arc of the workpiece, the main scale is locked by the locking screw, the scale marks on the main scale and the scale are read to obtain a detection value on one side, the detection value on the other side is obtained by the same method, and the difference value between the two detection values is the symmetry degree of the arc and the straight line groove; the measurement is simple and rapid, the obtained detection value is reliable, and the method can be flexibly applied to the real-time detection of field production. The reference block is L-shaped, the perpendicularity on an X plane and the parallelism on a Y plane are both 0.01mm, and the detection and positioning can be carried out in the X direction and the Y direction at the same time; the width of the reference block is larger than the width of the arc groove of the workpiece, and the reference block is symmetrically arranged relative to the scale in actual detection, so that the measuring point of the main scale is positioned at the center of the width of the arc groove, and the stress balance of the measuring tool is ensured; the main scale slides along the sliding groove of the scale, and the main scale and the sliding groove form a vernier caliper, so that the detection precision can reach 0.02mm, and the detection precision is high.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the specification which follows.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings, wherein:

fig. 1 is a cross-sectional view of the measuring tool for measuring the symmetry of the arc and linear grooves of the present invention;

FIG. 2 is a schematic diagram of a measuring tool for measuring the symmetry of a circular arc and a linear groove of a workpiece according to the present invention;

reference numerals: the device comprises a main scale 1, a reference block 2, a scale 3, a thrust screw 4, a locking screw 5, a connecting screw 6 and a workpiece 7.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples can be combined with each other without conflict.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, the figures are shown in schematic form and not in pictorial form; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes, and should not be construed as limitations of the present invention, and it will be understood that specific meanings of the above terms can be understood by those skilled in the art according to specific situations.

Please refer to fig. 1, which is a measuring tool for detecting the symmetry degree of an arc and a straight line groove, and includes a main scale 1, a reference block 2 and a scale 3, wherein the reference block 2 is connected to the lower side of the scale 3 through a connecting screw 6, the reference block 2 is L-shaped, the perpendicularity of the reference block 2 on an X plane and the parallelism of the reference block 2 on a Y plane are both 0.01mm, the width of the reference block 2 is greater than the width of the arc groove of a workpiece 7, the reference block 2 is symmetrically arranged with respect to the scale 3, the scale 3 is respectively provided with a sliding groove and an adjusting groove on the front surface and the upper surface, the main scale 1 is slidably connected with the sliding grooves, the main scale 1 and the scale 3 form a vernier caliper, the main scale 1 and the scale 3 are provided with scale marks with the precision of 0.02mm, the main scale 1 is connected with a thrust screw 4, the thrust screw 4 is slidably connected with the adjusting groove, and the scale 3 is connected with a locking screw 5 for limiting the sliding of the main scale 1 through a screw thread.

The specific implementation mode is as follows:

referring to fig. 2, firstly, the reference block 2 is abutted against the measuring reference of the workpiece 7 in the X and Y directions, then the thrust screw 4 is pushed to drive the main scale 1 to slide along the sliding groove of the scale 3 until the main scale contacts the large arc measured surface of the workpiece 7, so that the detection surface of the main scale 1 is in line contact with the measured surface of the workpiece 7, then the locking screw 5 is screwed, the scale marks on the main scale 1 and the scale 3 are used for reading the detection value, the left and right large arc surfaces of the workpiece 7 are respectively measured according to the method, and the obtained difference value between the two detection values is the symmetry degree of the arc and the linear groove of the workpiece 7. The detection measuring tool is simple in structure, convenient to install, reliable in obtained detection value and capable of being flexibly applied to real-time detection of field production; the perpendicularity of the L-shaped reference block 2 on the X plane and the parallelism of the L-shaped reference block on the Y plane are both 0.01mm, and the L-shaped reference block can be detected and positioned in the X direction and the Y direction at the same time; the width of the reference block 2 is larger than the width of the arc groove of the workpiece 7, and the reference block 2 is symmetrically arranged relative to the scale 3 during actual detection, so that the measuring point of the main scale 1 is positioned at the center of the width of the arc groove, and the stress balance of the measuring tool is ensured; the main scale 1 slides along the sliding groove of the scale 3, and the main scale and the scale form a vernier caliper, so that the detection precision can reach 0.02mm, and the detection precision is high.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides an arc and straight line recess symmetry measuring tool which characterized in that: including main scale (1), reference block (2) and scale (3), reference block (2) are connected through connecting screw (6) the downside of scale (3), the circular arc recess butt of the both ends of reference block (2) and work piece (7), spout and adjustment tank have been seted up respectively at two adjacent faces in scale (3), main scale (1) with spout sliding connection, main scale (1) is connected with thrust screw (4), thrust screw (4) with adjustment tank sliding connection, scale (3) still are connected with and are used for the restriction gliding locking screw (5) of main scale (1), main scale (1) with scale (3) have all carved scale mark.

2. The measuring tool for detecting the symmetry degree of the circular arc groove and the straight line groove as claimed in claim 1, wherein: the reference block (2) is L-shaped, and the perpendicularity of the reference block (2) on an X plane and the parallelism of the reference block on a Y plane are both 0.01mm.

3. The measuring tool for detecting the symmetry degree of the circular arc groove and the straight line groove as claimed in claim 1, wherein: the width of the reference block (2) is larger than the width of an arc groove of a workpiece (7), and the reference block (2) is symmetrically arranged relative to the scale (3).

4. The measuring tool for detecting the symmetry degree of the circular arc groove and the straight line groove as claimed in claim 1, wherein: the main scale (1) and the scale (3) form a vernier caliper, and the precision of scale marks carved on the main scale (1) and the scale (3) is 0.02mm.