CN216791153U

CN216791153U - Detection tool for cylindrical workpiece

Info

Publication number: CN216791153U
Application number: CN202122730469.9U
Authority: CN
Inventors: 邹叶鑫; 古湘龙; 侯华金; 李会超; 卜胜繁; 丁石强
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Changsha HVAC Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Changsha HVAC Equipment Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-06-21
Anticipated expiration: 2031-11-09

Abstract

The utility model provides a detection tool for a cylindrical workpiece. The detection tool comprises a central piece, three connecting rod pieces and a central support rod. The first ends of the connecting rod pieces are connected with the side face of the central piece, the first ends of the connecting rod pieces form a testing part which is contacted with the inner wall of the cylindrical workpiece, two adjacent connecting rod pieces are arranged in an angle mode, all the connecting rod pieces are located on the same horizontal plane, and the length of each connecting rod piece is equal to the radius of the cylindrical workpiece. The central support rod is arranged on the bottom surface of the central piece and is vertical to the horizontal plane. The detection tool can be used for rapidly screening and judging whether the inner diameters of large cylindrical workpieces such as the guide ring are qualified or not, is low in manufacturing cost and convenient and fast to operate, and can effectively improve the production quality level.

Description

Detection tool for cylindrical workpiece

Technical Field

The utility model relates to the technical field of detection tools, in particular to a detection tool for a cylindrical workpiece.

Background

In the air conditioning field of present, the part of water conservancy diversion circle and similar structure is because its structure size is big and the side has the inclination in axial direction, can't measure the internal diameter through slide caliper, adopts tools such as tape measure also to be difficult to carry out the precision measurement to the internal diameter.

Generally, two persons are required to assist each other to measure by using the tape measure, a large amount of time is wasted to find a positioning point in the test process, and the two persons need to use 3-5 minutes to test 1 flow guide ring, so that the production efficiency is seriously influenced. Moreover, due to the problems that the positioning points cannot be captured, the test size is not accurate, and the like, measurement deviation is easy to occur. If the part has local deformation or elliptical deformation, the part cannot be measured by visual inspection and tape measure or pull line test, and the omission is easily caused.

According to the above, the current measurement and detection aiming at the guide ring is not only low in efficiency but also insufficient in precision.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a detection tool for a cylindrical workpiece, and aims to solve the technical problems of low detection efficiency and insufficient precision of guide ring detection in the prior art.

The embodiment of the application provides a detect frock for cylindric work piece, includes: a center piece; the first ends of the connecting rod pieces are connected with the side face of the central piece, the first ends of the connecting rod pieces form a testing part which is contacted with the inner wall of the cylindrical workpiece, two adjacent connecting rod pieces are arranged in an angle mode, all the connecting rod pieces are positioned on the same horizontal plane, and the length of each connecting rod piece is equal to the radius of the cylindrical workpiece; and the central support rod is arranged on the bottom surface of the central piece and is vertical to the horizontal plane.

In one embodiment, the detection tool further comprises an operating handle, and the operating handle is arranged on the top surface of the central piece.

In one embodiment, the operating handle is T-shaped or L-shaped.

In one embodiment, the center stay is rotatably mounted on the bottom surface of the center piece.

In one embodiment, the center stay is mounted to the bottom surface of the centerpiece by a guide sleeve arrangement.

In one embodiment, the detection tool further comprises a base, and the base is arranged at the other end, far away from the central piece, of the central support rod.

In one embodiment, the test portion is arcuate in shape.

In one embodiment, there are three link members, and the angle between two adjacent link members is 120 °.

In one embodiment, the central member has a hexagonal prism shape with a mounting structure formed on each side of the central member for connection to the first ends of the link members.

In one embodiment, the link member is removably coupled to the mounting structure.

In the above embodiment, before use, according to the inner diameter of the to-be-detected flow guide ring, the connecting rod pieces of different specifications are selected, the length of each connecting rod piece is equal to the radius of the cylindrical workpiece, and when the flow guide rings of different specifications are measured, the connecting rod pieces of corresponding lengths are selected for replacement, so that the test theoretical diameter of the detection tool is the lower limit of the inner diameter of the flow guide ring. When the test device is used, the flow guide ring is placed on the horizontal plane, the test part of the connecting rod piece is attached to the inner side face of the flow guide ring, the central support rod is supported on the horizontal plane of the center of the flow guide ring, circular motion is performed on the connecting rod piece by taking the central piece as the circle center through rotating the central piece, the test part can be attached to the inner side face of the flow guide ring to normally move, and the inner diameter of a product is qualified. If the local operation is difficult and the guide ring is stuck during operation, the guide ring can be judged to be unqualified in size or have local deformation abnormality. Therefore, the detection tool can be used for rapidly screening and judging whether the inner diameter of a large cylindrical workpiece such as a guide ring is qualified or not, is low in manufacturing cost and convenient to operate, and can effectively improve the production quality level.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a cylindrical workpiece used in the detection tool for the cylindrical workpiece according to the utility model;

FIG. 2 is a schematic perspective view of the inspection tool for cylindrical workpieces according to the present invention;

FIG. 3 is an exploded view of the center piece and center stay of the inspection tool of FIG. 2;

fig. 4 is a schematic structural diagram of the detection tool of fig. 1 when measuring a diameter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Fig. 1, 2 and 3 show an embodiment of the inspection tool for a cylindrical workpiece according to the present invention, which includes a center member 10, three link members 20 and a center stay 30. The first ends of the link members 20 are connected to the side of the center member 10, the first ends of the link members 20 form a test portion 21 which is in contact with the inner wall of the cylindrical workpiece c, two adjacent link members 20 are angularly disposed, and all the link members 20 are located on the same horizontal plane, and the length of the link members 20 is equal to the radius of the cylindrical workpiece c. The center stay 30 is disposed on the bottom surface of the center piece 10, and the center stay 30 is perpendicular to the horizontal plane.

In the technical scheme of this embodiment, the cylindrical workpiece is a flow guide ring, and the above-mentioned embodiment is applied to the detection of the flow guide ring. Specifically, before the detection tool is used, the connecting rod pieces 20 of different specifications are selected according to the inner diameter of the guide ring to be detected, the length of each connecting rod piece 20 is equal to the radius of the cylindrical workpiece c, and the connecting rod pieces 20 of corresponding lengths are selected to be replaced when the guide rings of different specifications are measured, so that the test theoretical diameter of the detection tool is the lower limit of the inner diameter of the guide ring. When the test device is used, the guide ring is placed on the horizontal plane, the test part 21 of the connecting rod piece 20 is attached to the inner side face of the guide ring, the central support rod 30 is supported on the horizontal plane of the center of the guide ring, circular motion is performed on the connecting rod piece 20 by taking the central piece 10 as the circle center through rotating the central piece 10, the test part 21 can be attached to the inner side face of the guide ring to normally move, and the inner diameter of a product is qualified. If the local operation is difficult and the guide ring is stuck during operation, the guide ring can be judged to be unqualified in size or have local deformation abnormality. Therefore, the detection tool can be used for rapidly screening and judging whether the inner diameters of large cylindrical workpieces such as the guide ring are qualified or not, the detection tool is low in manufacturing cost and convenient and fast to operate, and the production quality level can be effectively improved.

Preferably, as shown in fig. 2, there are three link members 20, and the angle between two adjacent link members 20 is 120 °. Thus, the detection tool can be conveniently placed at the center of the cylindrical workpiece, and the center stay 30 of the detection tool is supported at the center of the cylindrical workpiece.

As other alternative embodiments, there may be more link members 20. At a minimum, however, the link members 20 should be two in number so as to function to position the center stay 30 together with the center member 10 at the center position of the cylindrical workpiece.

As a more preferable embodiment, as shown in fig. 2, the inspection tool further includes an operating handle 40, and the operating handle 40 is disposed on the top surface of the center 10. When the operation center 10 drives the connecting rod 20 to rotate, the inner side surface of the cylindrical workpiece is detected by holding the operation handle 40 by hand to drive the connecting rod 20 to rotate. As an alternative embodiment, the operating handle 40 is T-shaped, with the longest axis of the T-shaped structure being connected to the top surface of the central member 10. As an alternative embodiment, the operating handle 40 may also be L-shaped, and likewise, the longest axis of the L-shaped structure is connected to the top surface of the center piece 10.

In a preferred embodiment, the center stay 30 is rotatably mounted on the bottom surface of the center member 10, so that the center member 10 can be rotated relative to the center stay 30, and the center stay 30 is prevented from deviating from the center position of the cylindrical workpiece due to rotation on the supporting surface. As an alternative embodiment, as shown in fig. 3, the center stay 30 is mounted on the bottom surface of the center piece 10 through a guide bush structure 11. When in use, the guide sleeve structure 11 is fixedly arranged on the bottom surface of the central piece 10, a rotating sleeve is formed on the guide sleeve structure 11, and the end part of the central stay bar 30 is inserted into the rotating sleeve to be matched with the rotating sleeve. More preferably, as shown in fig. 3, the detection tool further includes a base 50, the base 50 is disposed at the other end of the center stay 30 away from the center piece 10, and the base 50 is disposed to enable the center stay 30 to stand on the supporting surface more stably. In the technical solution of the present embodiment, the base 50 is a disc-shaped base; as other alternative embodiments, the base 50 may also be a square disk base.

As shown in fig. 2, in the present embodiment, the test portion 21 has an arc shape. Therefore, the testing device can be more adaptive to the inner side surface of the cylindrical workpiece, and the difficulty in moving caused by the fact that the end part of the testing part 21 scratches the inner side surface of the cylindrical workpiece is avoided.

As shown in fig. 2 and 3, in the solution of the present embodiment, the central member 10 has a hexagonal prism shape, and a mounting structure connected to the first end of the link member 20 is formed on each side surface of the central member 10. In use, the link member 20 may be mounted to the side of the hexagonal prism-shaped center member 10 as needed. Preferably, the link member 20 is detachably connected to the mounting structure so that link members 20 of different lengths can be replaced according to actual needs to measure different specifications of guide rings.

According to the technical scheme provided by the utility model, the inner diameters of large cylindrical workpieces such as the guide ring and the like can be rapidly screened and judged to be qualified, and meanwhile, the inner diameters can be accurately measured by matching with a pin gauge. The problem of current water conservancy diversion circle or other similar circular structure tradition measuring tool measure difficulty, inefficiency is solved. This detect frock easy operation, detection speed is fast, can judge whether qualified in 30s, and the use that detects the frock does not have the environmental requirement, is applicable to any workspace, compares traditional measuring method and promotes efficiency of software testing greatly. And two persons are not needed for assisting in testing, the positioning points do not need to be captured, the testing is very convenient, if the local deformation or elliptical deformation phenomenon exists on the flow guide ring, the quick detection tool can detect the deformation or elliptical deformation, and the omission is avoided.

In the technical scheme of this embodiment, the inner diameter of the cylindrical workpiece similar to the guide ring can be measured by using the detection tool. As shown in fig. 4, the specific application method is as follows:

firstly, any one of the link members 20 is disassembled and then reassembled, and two link members 20 are assembled into a straight line by means of two surfaces of the center member 10 in the regular hexagonal prism, so that two link members 20 are connected at 180 degrees.

Then, the guide ring is placed on a horizontal plane, one connecting rod piece 20 is attached to the inner wall of the guide ring and supported on the horizontal plane of the center of the guide ring through a center supporting rod 30, one of the testing parts 21 of the connecting rod piece 20 can be attached to the guide ring, the pin gauge is inserted into the largest gap between the testing part 21 of the other connecting rod piece 20 and the guide ring, and the inner diameter of the guide ring can be measured by detecting the length L of the tool and the diameter D of the pin gauge. The inner diameter of the guide ring is L + D.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a detect frock for cylindric work piece which characterized in that includes:

a central piece (10);

the connecting rod piece comprises at least two connecting rod pieces (20), wherein the first ends of the connecting rod pieces (20) are connected with the side surface of the central piece (10), the first ends of the connecting rod pieces (20) form a testing part (21) which is in contact with the inner wall of a cylindrical workpiece (c), two adjacent connecting rod pieces (20) are arranged in an angle mode, all the connecting rod pieces (20) are located on the same horizontal plane, and the length of each connecting rod piece (20) is equal to the radius of the cylindrical workpiece (c);

the central support rod (30) is arranged on the bottom surface of the central piece (10), and the central support rod (30) is perpendicular to the horizontal plane.

2. The inspection tool for cylindrical workpieces according to claim 1, further comprising an operating handle (40), wherein the operating handle (40) is disposed on the top surface of the center piece (10).

3. The cylindrical workpiece detection tool as recited in claim 2, characterized in that the operating handle (40) is T-shaped or L-shaped.

4. The cylindrical workpiece detection tool according to claim 1, wherein the center stay (30) is rotatably mounted on the bottom surface of the center piece (10).

5. The cylindrical workpiece detection tool as claimed in claim 4, wherein the center stay (30) is mounted on the bottom surface of the center piece (10) through a guide sleeve structure (11).

6. The cylindrical workpiece detection tool according to claim 4, further comprising a base (50), wherein the base (50) is arranged at the other end of the center stay (30) far away from the center piece (10).

7. The detection tool for the cylindrical workpiece according to claim 1, wherein the test portion (21) is arc-shaped.

8. The cylindrical workpiece detection tool according to claim 1, wherein the number of the connecting rod pieces (20) is three, and the angle between two adjacent connecting rod pieces (20) is 120 °.

9. The inspection tool for cylindrical workpieces as recited in claim 1, wherein the central member (10) has a hexagonal prism shape, and a mounting structure connected to the first end of the link member (20) is formed on each side surface of the central member (10).

10. The inspection tool for cylindrical workpieces according to claim 9, wherein the connecting rod member (20) is detachably connected to the mounting structure.