CN215864985U

CN215864985U - Detection tool for detecting height difference of cylinder cover combustion chamber

Info

Publication number: CN215864985U
Application number: CN202121947702.2U
Authority: CN
Inventors: 林石磊; 傅旭
Original assignee: FAW Group Corp; Faw Foundry Co Ltd
Current assignee: FAW Group Corp; Faw Foundry Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-18
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the technical field of automobiles, in particular to a gauge for detecting height difference of a cylinder cover combustion chamber. The device comprises a gauge bracket, a support column and a length measuring tool; the support pillar is fixed at the lower end of the checking fixture bracket; a detection probe of the length measuring tool vertically penetrates through the gauge bracket; the supporting column is placed on a positioning datum point of a cylinder cover combustion chamber; the detection probe is placed on a height difference detection point of a cylinder cover combustion chamber. According to the utility model, when the height difference between the casting positioning reference and the height difference detection point of the combustion chamber is equal to the height difference between the bottom surface of the support column of the checking fixture and the probe of the dial indicator, the reading displayed by the dial indicator is adjusted to be zero, when the dial indicator touches the reading of the height difference detection point of the combustion chamber of the casting, the four dial indicators display the height difference of the combustion chamber, and the four dial indicators simultaneously read, so that the height difference of the combustion chamber is quickly detected.

Description

Detection tool for detecting height difference of cylinder cover combustion chamber

Technical Field

The utility model relates to the technical field of automobiles, in particular to a gauge for detecting height difference of a cylinder cover combustion chamber.

Background

The consistency of combustion chambers of cylinders of an engine cylinder cover is poor, so that the running stability of the engine can be influenced, and the power and the torque of the engine can be influenced; affecting the service life of the engine and reaching the emission standard, etc. Therefore, the height difference of the combustion chamber of the cylinder cover needs to be strictly controlled. The height difference of the combustion chamber of the cylinder cover of the general engine is +/-0.25 mm.

The existing detection technology generally adopts three-coordinate detection, a Z-direction reference is established by selecting three points on the bottom surface of a cylinder cover, the positions of the four points are detected by a detection probe, data are adopted, four groups of data are analyzed and compared pairwise, and the height difference of a combustion chamber of the cylinder cover is determined.

Disclosure of Invention

The utility model provides a simple-structure detection tool for detecting the height difference of a cylinder cover combustion chamber, which can be used for online production, is convenient for timely finding deviation and adjusting, and solves the problems of complex process, low detection speed and low efficiency of the conventional cylinder cover combustion chamber height detection method.

The technical scheme of the utility model is described as follows by combining the attached drawings:

a detection tool for detecting height difference of a cylinder cover combustion chamber comprises a detection tool support 1, a support pillar 2 and a length measuring tool 4; the support pillar 2 is fixed at the lower end of the checking fixture bracket 1; a detection probe 3 of the length measuring tool 4 vertically penetrates through the gauge bracket 1; the support column 2 is placed on a positioning datum point of a cylinder head combustion chamber; and the detection probe 3 is placed on a height difference detection point of a cylinder cover combustion chamber.

The checking fixture bracket 1 comprises a triangular bracket 11 and a rectangular bracket 12; a trapezoidal bracket 13 extends from one end of the rectangular bracket 12; lightening holes are formed in the triangular support 11 and the rectangular support 12.

There are three support columns 2.

The length measuring tool 4 is a dial indicator or a dial indicator.

The number of the length measuring tools 4 is four, and the connecting lines of the detecting probes 3 of the four length measuring tools 4 are parallel to the long edge of the rectangular bracket 12.

The utility model has the beneficial effects that:

1) the utility model has simple structure, is light and small, can be used for online production, is convenient for finding deviation in time and is convenient for adjustment.

2) According to the utility model, when the height difference between the casting positioning reference and the height difference detection point of the combustion chamber is equal to the height difference between the bottom surface of the support column of the checking fixture and the probe of the dial indicator, the reading displayed by the dial indicator is adjusted to be zero, when the dial indicator touches the reading of the height difference detection point of the combustion chamber of the casting, the four dial indicators display the height difference of the combustion chamber, and the four dial indicators simultaneously read, so that the height difference of the combustion chamber is quickly detected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of an angle of the present invention;

fig. 2 is a schematic structural view of another angle of the present invention.

In the figure: 1. a gauge holder;

11. a triangular bracket; 12. a rectangular bracket; 13. a trapezoidal bracket;

2. a support pillar;

3. detecting a probe;

4. a length measuring tool.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the gauge for detecting the height difference of the cylinder head combustion chamber comprises a gauge bracket 1, a support pillar 2 and a length measuring tool 4; the support pillar 2 is fixed at the lower end of the checking fixture bracket 1; the detection probe 3 of the length measuring tool 4 vertically penetrates through the gauge support 1.

The number of the support columns 2 is three, and the support columns 2 are placed on the positioning datum points of the cylinder head combustion chamber.

The length measuring tool 4 is a dial indicator or a dial indicator.

The number of the length measuring tools 4 is four, the connecting lines of the detecting probes 3 of the four length measuring tools 4 are parallel to the long edge of the rectangular support 12, and the detecting probes 3 of the length measuring tools 4 are placed on the height difference detecting points of the combustion chamber of the cylinder cover.

The length measuring tool 4 can also be connected with data acquisition equipment to realize data visualization and storage.

The using method of the utility model is as follows:

s1, calibrating the utility model;

placing the three support columns 2 and the four detection probes 3 on a calibration platform, and adjusting screws of the three support columns 2 to enable the height difference between the bottom surfaces of the support columns 2 and the detection probes 3 to be the height difference between the height detection point of the combustion chamber and the theoretical height difference of the positioning datum; the adjusted length measuring tool 4 is then displayed at the zero line.

S2, starting measurement;

firstly, the surface of a casting combustion chamber is horizontally upward, three support columns 2 are respectively placed on three positioning references of a cylinder cover combustion chamber, then four detection probes 3 are placed on corresponding height difference detection points of the combustion chamber, the detection probes 3 contact the detection points, and a length measuring tool 4 displays readings. The reading represents +0.25mm at the left side 25 of the zero line, and represents-0.25 mm at the right side 75 of the zero line, the reading is qualified in the area, and the reading is unqualified when exceeding the area, and the pouring line needs to be adjusted in time.

Compared with three-coordinate detection, the four meters can read at the same time, and the height difference of the cylinder cover combustion chamber can be quickly detected.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A detection tool for detecting the height difference of a cylinder cover combustion chamber is characterized by comprising a detection tool support (1), a support pillar (2) and a length measuring tool (4); the support pillar (2) is fixed at the lower end of the checking fixture bracket (1); a detection probe (3) of the length measuring tool (4) vertically penetrates through the gauge bracket (1); the supporting column (2) is placed on a positioning datum point of a cylinder head combustion chamber; the detection probe (3) is placed on a height difference detection point of a cylinder cover combustion chamber.

2. The checking fixture for detecting the height difference of the combustion chamber of the cylinder head as claimed in claim 1, characterized in that the checking fixture support (1) comprises a triangular support (11) and a rectangular support (12); one end of the rectangular bracket (12) extends out of a trapezoidal bracket; lightening holes are formed in the triangular support (11) and the rectangular support (12).

3. The tool for detecting the height difference of the combustion chamber of the cylinder cover as claimed in claim 1, wherein there are three support pillars (2).

4. The gauge for detecting the height difference of the combustion chamber of the cylinder cover according to claim 1, wherein the length measuring tool (4) is a dial indicator or a dial indicator.

5. The detection tool for detecting the height difference of the combustion chamber of the cylinder cover according to the claim 2, characterized in that the number of the length measuring tools (4) is four, and the connecting lines of the detecting probes (3) of the four length measuring tools (4) are parallel to the long side of the rectangular bracket (12).