CN222124261U - Cylinder groove depth measuring device - Google Patents

Abstract

The utility model discloses a cylinder groove depth measuring device which comprises a laser sensor, a body, an auxiliary push rod, a display meter and a laser range finder, wherein the laser sensor is arranged on the body through screws, the body comprises a support semi-ring, a telescopic guide block and the auxiliary push rod, the support semi-ring is fixed at two ends of the body through screws and positioned at the lower end consistent with the direction of light emitted by the laser sensor, the telescopic guide block is arranged at the upper end opposite to the direction of light emitted by the laser sensor and moves up and down in the vertical direction through the spring, the auxiliary push rod is connected to the body, and the display meter is connected with the laser sensor and the laser range finder through cables. The utility model utilizes the laser sensor to measure the height difference between the inner curved surface of the cylinder and the depth of the groove to determine the size, thereby determining the depth value of the groove.

Description

Barrel type groove depth measuring device

Technical Field

The utility model belongs to a measuring device of barrel parts, and particularly relates to a measuring device of barrel groove depth.

Background

The special-shaped grooves of the withdrawal part are characterized in that the thin wall is easy to deform, the machining, clamping and alignment are difficult, 3-4 groups of different special-shaped grooves are required to be machined on the inner wall of the same part, the width and the length of each group of grooves are different, the longest groove reaches 1700mm, and an inclined section with the length of 150mm exists at the tail end of each groove.

The depth measurement of the groove machined in the cylinder part is generally carried out by adopting measuring equipment such as a micrometer, a caliper and the like, the measuring equipment can only measure the difference between the diameter of the cylinder at the opening part and the diameter of the groove, and the actual depth of the groove is measured at a deeper inner position with a certain gradual change size in the cylinder. And the actual depth of the groove can not be measured when the diameter is measured and calculated, and the depth of the groove can not be ensured. Detection errors may occur.

Disclosure of utility model

The utility model aims to provide a cylinder groove depth measuring device, which utilizes a laser sensor to measure the height difference between a cylinder inner curved surface and the groove depth to determine the size, thereby determining the groove depth value.

The technical proposal is as follows:

The cylinder groove depth measuring device comprises a laser sensor, a body, an auxiliary push rod, a display meter and a laser range finder, wherein the laser sensor is arranged on the body through screws, the body comprises a support semi-ring, a telescopic guide block and the auxiliary push rod, the support semi-ring is fixed at two ends of the body through screws and is positioned at the lower end consistent with the direction of light emitted by the laser sensor, the telescopic guide block is arranged at the upper end opposite to the direction of light emitted by the laser sensor and moves up and down in the vertical direction through a spring, the auxiliary push rod is connected to the body, and the display meter is connected with the laser sensor and the laser range finder through cables.

Further, the laser rangefinder is fixed on the tripod.

Compared with the prior art, the utility model has the following advantages:

the utility model utilizes the laser sensor to measure the height difference between the inner curved surface of the cylinder and the depth of the groove to determine the size, thereby determining the depth value of the groove. And positioning the axial position in the cylinder by using a laser range finder.

The utility model utilizes the laser range finder to position the axial position in the cylinder, and is suitable for measuring the groove sizes of cylinders with various sizes by changing different supporting rings and positioning devices.

Drawings

FIG. 1 is a schematic view of a structure of a device for measuring depth of a groove in a cylinder;

FIG. 2 is a schematic diagram of a measuring method of a cylinder groove depth measuring device according to the present utility model;

Fig. 3 is a measurement schematic of the present utility model.

Detailed Description

The following description fully illustrates the specific embodiments of the utility model to enable those skilled in the art to practice and reproduce it.

Fig. 1 is a schematic structural view of a device for measuring the depth of a groove in a cylinder, and fig. 2 is a schematic view of a method for measuring the depth of a groove in a cylinder.

A cylinder groove depth measuring device comprises a laser sensor 1, a body 2, a boosting rod 7, a display meter 5 and a laser distance meter 6, wherein the laser sensor 1 is installed on the body 2 through screws, the body 2 comprises a support semi-ring 3, a telescopic guide block and the boosting rod, the support semi-ring 3 is fixed at two ends of the body 2 through screws and positioned at the lower end consistent with the light direction emitted by the laser sensor 1, the telescopic guide block is installed at the upper end opposite to the light direction emitted by the laser sensor 1 and enables the telescopic guide block to vertically move up and down through a spring, the boosting rod is connected to the body 2 to enable the body to be pushed in a cylinder, and cables for the display meter are respectively connected with the laser sensor and the laser distance meter.

The laser range finder 6 is placed at the other end of the cylinder measuring port to measure the axial distance. The high-precision laser range finder for measuring the axial distance has the measurement precision of +/-0.1 mm. The laser range finder 6 is fixed at the other end of the measurement by a tripod, and the laser point of the range finder is made to strike on the end face of the body 2 in parallel with the cylinder direction, so that the body 2 can measure the advancing distance in the in-cylinder travel.

As shown in fig. 3, a measurement schematic of the present utility model is shown.

The measuring principle of the utility model is that the measuring cylinder inner curved surface is the height difference between the reference position and the depth of the groove to determine the size. And directly measuring the depth of the groove by measuring the zero position value of the inner curved surface of the cylinder, thereby determining the depth value h of the groove. The method has the advantages of high measurement accuracy and large measurement range, and is suitable for measuring the groove sizes of cylinders with various sizes by replacing different support rings.

When the displacement is measured, the measuring device is placed in the measured cylinder, the laser range finder 1 is placed at the other end of the measured cylinder, the laser beam horizontally irradiates the end face of the body 2, and the numerical value of the range window of the display meter is set to zero when the initial position in the measured cylinder.

The laser beam of the laser sensor 1 is irradiated on the inner curved surface of the cylinder, and the depth measurement size window of the display meter is set to zero.

And positioning the telescopic positioning device in the groove at the other side opposite to the groove to be measured by the rotating direction of the body 2, pushing the measuring device 2 along the axial direction of the cylinder by using the booster rod 7, observing the distance measurement window value in the display table 5 by using the moving axial distance, and displaying the measurement window size of the display table 5 as the measurement depth of the groove to be measured.

The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present utility model may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims (2)

1. A cylindrical groove depth measuring device, characterized in that it comprises: a laser sensor, a body, a booster rod, a display meter, and a laser rangefinder; the laser sensor is mounted on the body with screws, and the body comprises: a supporting half ring, a telescopic guide block, and a booster rod; the supporting half ring is fixed to both ends of the body with screws, and is located at the lower end which is consistent with the direction of light emitted by the laser sensor; the telescopic guide block is mounted at the upper end which is opposite to the direction of light emitted by the laser sensor, and a spring is used to allow the telescopic guide block to move up and down in the vertical direction; the booster rod is connected to the body, and the display meter is connected to the laser sensor and the laser rangefinder respectively with cables. 2. The cylindrical groove depth measuring device as described in claim 1 is characterized in that the laser rangefinder is fixed on a tripod.