CN106197360A - Lower opening concentricity measuring device on a kind of support - Google Patents

Abstract

The invention relates to a device for measuring the concentricity of the upper and lower holes of a bracket, which includes a detection base plate and vertical support columns installed on the detection base plate. The detection base plate has a plurality of detection slots opened at different preset angles, each A detection and positioning piece that can move in the detection groove for positioning the orifice plate under the support is provided in the detection groove, and a sliding connector that can move up and down in a straight line along the support column is installed on the vertical support column. A plurality of horizontally extending measuring arms are provided with movable detection positioning pins for positioning the orifice plate on the support. The invention has the advantages of simple operation, high efficiency, strong stability and high precision, the effective detection stroke is 500 mm, and the measured circle center angle is less than or equal to 0.1 mm.

Description

A device for measuring the concentricity of upper and lower holes of a bracket

technical field

The invention belongs to the technical field of measuring instruments, and in particular relates to a device for measuring the concentricity of upper and lower holes of a bracket.

Background technique

At present, the devices used to measure the concentricity of connecting brackets in petrochemical industry generally use three-coordinates, position degree meters, and the workpiece to be measured is relatively single, and the position degree of special-shaped parts cannot be measured. The stroke of the stylus is also limited, the probe wear on the workpiece to be measured is relatively large, the later maintenance costs are high, and programming is required, which is cumbersome.

Contents of the invention

The object of the present invention is to solve the above-mentioned technical problems and provide a simple and convenient measuring device for measuring the concentricity of the upper and lower holes of the bracket, which can effectively measure the concentricity of the upper and lower holes of the connecting bracket, and is suitable for parts of different specifications and sizes Measurement.

To achieve the above object, the present invention adopts the following technical solutions:

A device for measuring the concentricity of the upper and lower holes of a bracket, comprising a detection base plate and a vertical support column installed on the detection base plate, the detection base plate has a plurality of detection slots set at different preset angles, each of the detection There is a detection positioning piece that can move in the detection groove for positioning the orifice plate under the support in the groove, and multiple horizontal support columns are installed on the vertical support column through sliding connectors that can move up and down in a straight line along the support column. Extending the measuring arm, the horizontally extending measuring arm is equipped with movable detection positioning pins for positioning the orifice plate on the support.

The vertical support column is a hexagonal column, which is detachably connected to the detection base plate, and the inner wall of the sliding member is a corresponding hexagonal hole.

A support column socket is preset on the detection base plate, and the vertical support column is inserted into the support column socket.

The detection slots include four basic detection slots arranged in a cross shape, and at least one auxiliary detection slot is provided between two adjacent basic detection slots.

The detection base is a rectangular plate, and four detection slots are arranged on the diagonal of the rectangular plate.

The detection slot is a T-shaped slot.

The invention has the advantages of simple operation, high efficiency, strong stability and high precision, the effective detection stroke is 500 mm, and the measured circle center angle is less than or equal to 0.1 mm.

Description of drawings

Fig. 1 shows the three-dimensional structure schematic diagram of the concentricity measuring device of the upper and lower holes of the bracket of the present invention;

Fig. 2 shows the side view schematic diagram of the concentricity measuring device of the upper and lower holes of the bracket of the present invention;

Fig. 3 shows a top view of the device for measuring the concentricity of the upper and lower holes of the bracket according to the present invention.

detailed description

Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.

As shown in Figures 1-3, a device for measuring the concentricity of the upper and lower holes of a bracket includes a detection base plate 10 and a vertical support column 15 installed on the detection base plate. A plurality of detection grooves used as a benchmark for detecting parts, each of which is provided with a detection positioning member 12 that can move in the detection groove for positioning the lower orifice plate of the support, on the vertical support column A plurality of horizontally extending measuring arms 17 are installed through a sliding connection piece 16 that can move up and down in a straight line along the support column, and a movable detection positioning pin 18 for positioning the orifice plate on the support is installed on the horizontally extending measuring arm. .

Wherein, in terms of specific implementation, in the present invention, the vertical support column 15 is a hexagonal surface column, which is detachably connected to the detection base plate, and the inner wall of the slider is a corresponding hexagonal hole.

In the present invention, the sliding member 16 can move linearly on the vertical support column 15, so as to facilitate the measurement of the concentricity of the holes on the upper orifice plate and the lower orifice plate of the connection brackets with different heights.

Further, the vertical support column is provided with a lower limit device for the slider, which can be a limit block or a limit pin, which is used to keep the slider fixed at a position on the vertical support column without moving to the same position as the vertical support column. Detects the contact state of the bottom plate.

In the present invention, a support column insertion hole is preset at the center of the detection base plate, and the vertical support column is inserted into the support column insertion hole.

In the present invention, the detection slots include four basic detection slots 11 arranged in a cross shape, and at least one auxiliary detection slot is provided between two adjacent basic detection slots.

In terms of specific implementation, there are two auxiliary detection grooves, including the first auxiliary detection groove 13 and the first auxiliary detection groove 14, which are respectively located in two interval areas, that is, two interval areas formed by three basic detection grooves, Of course, one or two, or even a plurality of auxiliary detection grooves may be provided in all interval regions formed by the basic detection grooves, and there is no specific limitation.

Corresponding positioning pins may also be provided in the auxiliary detection groove, or may not be provided, and the positioning pins or positioning pieces in the basic detection groove are used for use.

In terms of specific implementation, in the present invention, the detection base is a rectangular plate, and the four detection slots are arranged on the diagonal of the rectangular plate.

Specifically, the detection groove is a T-shaped groove, or an I-shaped groove, which is not limited in detail.

In order to facilitate the sharing of detection positioning pins, in the present invention, the size and shape of the detection grooves are consistent, and the outer end leads directly to the outer end surface of the detection bottom plate, so that the detection positioning pins can be taken out.

In the present invention, the slider 16 can be taken out from the top of the vertical support column, and then installed on the vertical support column after changing an angle, so that the position of the horizontally extending measuring arm 17 will be relative to the detection base The position of the detection groove on the top is changed, so that it can adapt to the measurement of the concentricity of the upper and lower orifice plates of different supports.

The sliding part and the horizontal extension arm are connected on the lower end surface of the sliding part through the stepped matching surface 19 and then connected and fixed together by bolts 20 .

When measuring, first lift the horizontally extending measuring arm to a certain height, place the lower plate of the connecting bracket to be tested on the detection base, and use the corresponding positioning piece to position the corresponding hole on the lower orifice plate, that is, extend into the lower plate In the corresponding hole of the orifice plate, then the lower positioning part 21 of the detection positioning pin on the horizontally extending measuring arm is inserted into the corresponding hole of the upper orifice plate of the connection bracket, through the positioning of the horizontally extending measuring arm of the upper part, it can be installed on the The corresponding measuring instrument on the horizontal measuring arm can accurately read the angle between the bottom plate hole and the upper plate hole of the connected bracket, such as using a rotating digital display angle meter to measure the angle between the bottom plate hole and the upper plate hole of the support It can measure whether the upper and lower holes are concentric.

The invention has the advantages of simple operation, high efficiency, strong stability and high precision, the effective detection stroke is 500 mm, and the measured circle center angle is less than or equal to 0.1 mm.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (6)

1. lower opening concentricity measuring device on a support, it is characterised in that include a detection base plate and be arranged on described inspection Survey the vertical support column on base plate, described detection base plate has the multiple detection grooves offered by default different angles, each described Detection groove in be provided with for support orifice plate is positioned can in this detection groove the detection and location part of movement, described vertically By multiple horizontal-extending measurement arm, institute can be provided with along the sliding connector of described support column straight line lifting moving on support column State the moveable detection and location pin being provided with on horizontal-extending measurement arm for support up-hole plate is positioned.

Lower opening concentricity measuring device on support the most according to claim 1, it is characterised in that described vertical support column is six Edged surface post, is detachable connection with described detection base plate, is corresponding hexagonal configuration hole in the inwall of described sliding part.

Lower opening concentricity measuring device on support the most according to claim 2, it is characterised in that preset on described detection base plate Support column jack, described vertical support column is had to be inserted in described support column jack.

Lower opening concentricity measuring device on support the most according to claim 3, it is characterised in that described detection groove includes four Substantially detect groove, arrange in cross shape, between two adjacent described basic detection grooves, be provided with at least one auxiliary detection groove.

Lower opening concentricity measuring device on support the most according to claim 4, it is characterised in that described detection base is rectangle Shape plate, four detection grooves are arranged on the diagonal of this rectangular-shaped plate.

6. according to lower opening concentricity measuring device on support described in any one of claim 1-5, it is characterised in that described detection groove For T-slot.