CN201476739U - The length detection device of the conical piece - Google Patents

Abstract

The utility model relates to a metering device, especially to a length meter for a precise small cone. The meter includes a gauge seat; a dial gauge is fixed on the gauge seat through a rack; a metering head is connected under the dial gauge; the gauge seat is provided with a cone fixing base; the fixing base is provided with a fixing hole for the cone; a guide groove is arranged on top of the fixing hole; and the outer circumference surface on the upper end of the cone is connected with the guide groove. The utility model provides a meter with the simple structure for metering a part of length of the cone and solves the problem in prior art that the conical surface length of the precise cone is unable to be conveniently metered.

Description

The length detection device of the conical piece

technical field

The utility model relates to a detection tool, in particular to a length detection device for a precision small cone.

Background technique

In modern mechanical processing, the processing of conical surfaces is a very common processing method. Small and precise conical parts are also widely used in watches and computer mainframes. For a conical piece with a certain required length, the proofreading and detection of its length is essential. However, in the prior art, a caliper is generally used for measurement after machining and forming, and the measurement result is not accurate enough. At the same time, the length of a part of the cone cannot be measured at all. For precision conical parts with a diameter between 0.5mm and 2mm, the requirements for the length of the conical surface are very accurate, but the measurement is very inconvenient.

Contents of the invention

The utility model mainly provides a measuring device which is simple in structure and convenient for detecting the length of a part of the cone; it solves the technical problem of the inconvenient conical surface length of the precision cone in the prior art.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a length detection device for a conical piece, comprising a table base, on which a dial indicator is fixed by a bracket, connected below the dial indicator There is a detection head, the table base is provided with a cone fixing seat, the fixing seat is provided with a fixing hole of the cone, and a guide groove is arranged above the fixing hole, and the outer peripheral surface of the upper end of the cone is aligned with the The guide grooves are connected. When it is necessary to measure the length of the cone from the bottom to the top, the lower part of the cone is inserted into the fixing hole, and the diameter of the fixing hole is the same as the outer diameter of the lower cone to be detected, so that the part to be detected is placed in the guide groove, The largest diameter part of the cone is tangent to the guide groove, so as to ensure that the center line of the cone is perpendicular to the horizontal plane and improve the accuracy of detection. The dial indicator is placed above the cone for detection.

As a preference, the fixed seat is in the shape of "T", the horizontal part of the fixed seat is provided with a fixed hole, the vertical part of the fixed seat is provided with a vertical guide groove, and the fixed hole is located on the horizontal part of the guide groove. The center of the projection. The guide groove is arranged parallel to the horizontal plane, so that the cone can be vertically stood to facilitate measurement. The fixing hole is located at the center of the guide groove to facilitate the positioning and fixing of the cone.

Preferably, the guide groove is a "V" shaped through groove. The "V"-shaped through groove is easy to process, and can realize the guidance and detection of part of the length of the cone.

Preferably, a correction block is provided above the vertical part of the fixing seat, the correction block is located behind the guide groove, and the height of the correction block is 0.5mm-1.5mm. A correction block is set above the fixed seat, and the dial indicator is calibrated by using the correction block first, and then the cone is tested. The correction block is higher than the fixed seat, so that the conical piece higher than the "V"-shaped through groove can be detected, and whether it is within the error range, the height of the correction block is greater than the allowable error range.

Preferably, the fixing seat is formed integrally with tungsten steel. The one-piece molding structure is simple, and the tungsten steel material is used at the same time, with small wear and good detection effect.

Therefore, the length detection device of the conical part of the present utility model has the following advantages: use the fixing hole on the fixed seat to cooperate with the guide groove on the fixed seat to select a part of the length of the conical part and locate it, and then use the dial indicator to check the conical part. The length of the test is simple and convenient; at the same time, a correction block higher than the end face of the fixed seat is set on the fixed seat, so that the detection range is wider, and the conical parts that are higher than the guide groove can also be detected. Conical parts, and convenient calibration of the dial indicator.

Description of drawings:

Fig. 1 is a schematic diagram of a length detection device for a cone of the present invention.

Fig. 2 is a perspective view of the fixing seat in Fig. 1 .

Fig. 3 is a top view of the fixing seat in Fig. 1 .

The specific implementation method:

Below through embodiment, in conjunction with accompanying drawing, the technical scheme of utility model is described further in detail.

Example:

As shown in Figure 1, a length detection device for a conical piece includes a table base 1, a "T"-shaped fixing seat 2 and a support rod 3 perpendicular to the end face are provided on the end surface of the table base 1, and the support rod 3 A dial gauge 5 is fixed on it by a bracket 4 . The lower end of the dial indicator 5 is connected with a detection head 6 by threads, and the fixing seat 2 is located below the detection head 6, and the fixing seat is integrally formed by tungsten steel material. As shown in Figures 2 and 3, the fixing base 2 includes a vertical portion 21 parallel to the pole and a horizontal portion 22 parallel to the end surface of the watch base. A vertical "V" guide groove 23 is opened in the center of the vertical part 21 , the guide groove 23 is a through groove, and the length of the guide groove 23 is the same as that of the vertical part 21 . Horizontal part 22 is provided with cone part fixing hole 24, and cone part fixing hole 24 is positioned at the center of guide groove 23, and the diameter of fixing hole 24 is identical with the diameter of the small-diameter end of the part length of the cone part that needs to intercept, thereby by the cone The part of the cone is inserted into the small hole to intercept part of the length of the cone, and the large diameter end of the cone is tangent to the "V"-shaped guide groove 23. The length of the cone is similar to the length of the guide groove 23, so that the The dial gauge 5 detects the length of the cone. The upper end surface of the vertical part 21 is provided with a correction block 25, the correction block 25 is positioned at the rear of the guide groove 23, and the height of the correction block 25 is 1 mm, that is, the correction block 25 is higher than the upper end face of the vertical part 21 by 1 mm, which is convenient for detecting height. The cone on the vertical part.

When testing, first contact the dial indicator to the calibration block to zero the dial indicator, then move the fixing seat back, align the detection head on the dial indicator with the guide groove on the fixing seat, and insert one end of the workpiece into the In the fixing hole on the fixing seat, intercept the length of the conical part to be detected. The detection head is located on the upper end surface of the conical part, and the error is read through the dial gauge to check whether it is within the allowable range of error.

The specific embodiments described herein are only examples to illustrate the concept of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. A length detecting device of a conical part, characterized in that: comprise a table base, on the table base, a dial indicator is fixed by a support, and a detection head is connected below the dial indicator, and the said table base is provided with The cone fixing seat is provided with a fixing hole of the cone, and a guide groove is arranged above the fixing hole, and the outer peripheral surface of the upper end of the cone connects with the guide groove. 2. The measuring device for the length of a conical piece according to claim 1, characterized in that: said fixing seat is in the shape of "T", the horizontal part of the fixing seat is provided with a fixing hole, and the vertical part of the fixing seat is provided with The vertical guide groove, the fixing hole is located at the center of the projection of the guide groove on the horizontal part. 3. The measuring device for the length of a conical piece according to claim 1 or 2, characterized in that: said guide groove is a "V" shaped through groove. 4. The length detecting device of a conical piece according to claim 2, characterized in that: a correction block is arranged above the vertical part of the fixed seat, and the correction block is located behind the guide groove, and the correction block The height is 0.5mm ~ 1.5mm. 5. The measuring device for the length of a conical piece according to claim 1 or 2, characterized in that: said fixing seat is formed integrally with tungsten steel.

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