CN114888735B - Positioning device and application method thereof - Google Patents

Abstract

The invention relates to a positioning device, in particular to a device for cylinder combination positioning of semi-type parts. Comprising the following steps: the device comprises a double-end stud, a customized nut and a positioning pin, wherein the double-end stud is in clearance fit with the cylinder closing bolt hole, the customized nut is in threaded connection with the double-end stud, and the positioning pin is in clearance fit with the pin hole; the invention provides a positioning device for semi-classified workpieces, and aims to design a positioning device which can solve the problems that a positioning pin cannot be accurately inserted into a pin hole and a cylinder-closing bolt cannot be fixed easily when the semi-classified parts are combined in the prior art.

Description

Positioning device and application method thereof

Technical Field

The invention relates to a positioning device, in particular to a device for cylinder combination positioning of semi-type parts.

Background

When the existing half-type parts are required to be combined, the upper half part and the lower half part are required to be placed on a cylinder combining platform, and then a cylinder combining locating pin is inserted into a pin hole to be located, so that a cylinder combining bolt can be accurately screwed into the cylinder combining bolt hole. However, in the process of machining the half parts, deformation often occurs to a certain extent, in addition, the upper half and the lower half of the workpiece cannot be completely leveled during cylinder combination, which can lead to the fact that the positioning pin cannot be accurately inserted into the upper half pin hole and the lower half pin hole during cylinder combination, and even the pin hole is possibly damaged.

Disclosure of Invention

The invention provides a positioning device for semi-classified workpieces, and aims to design a positioning device which can solve the problem that a positioning pin cannot be accurately inserted into a pin hole when semi-classified parts are combined in the prior art.

The purpose of the invention is realized in the following way: the positioning device comprises: the device comprises a double-end stud and a custom nut, wherein the double-end stud is arranged on a workpiece, and the custom nut is connected with the double-end stud.

The using method of the positioning device comprises the following steps:

s1: the upper workpiece and the lower workpiece are horizontally placed on a cylinder combining platform, the lower end of the stud is screwed into a cylinder combining bolt hole in the middle of the lower workpiece, and the cylinder combining bolt hole of the upper workpiece penetrates through the stud;

s2: the customized nut is connected with the upper end of the double-end stud through threads, and when the matching distance between an upper workpiece and a lower workpiece is fastened by the customized nut, the pin hole on the lower workpiece can be clearly observed through the pin hole of the upper workpiece;

s3: and inserting the locating pin into the pin hole through the upper workpiece, screwing the cylinder closing bolt into the other empty cylinder closing bolt hole, fastening the cylinder closing bolt to a clearance of a matching surface to meet the preset requirement, taking out the stud, replacing the stud with the cylinder closing bolt, and closing the cylinder.

In one embodiment, the workpiece is divided into an upper workpiece and a lower workpiece, a plurality of cylinder closing bolt holes and pin holes which are distributed at intervals are correspondingly arranged on the upper workpiece and the lower workpiece, a sinking table structure is arranged at the upper section of the cylinder closing bolt holes, and the positioning device comprises: the device comprises a double-end stud, a custom nut and a locating pin, wherein the double-end stud is in clearance fit with the cylinder closing bolt hole, the custom nut is in threaded connection with the double-end stud, and the locating pin is in clearance fit with the pin hole.

In one embodiment, the custom nut is divided into an upper portion and a lower portion, the upper portion having the same inner diameter as the lower portion.

In one embodiment, the upper portion is provided with internal threads and the lower portion has a smooth inner wall.

In one embodiment, the outer diameter of the upper part is larger than the aperture of the cylinder closing bolt hole, the outer diameter of the lower part is smaller than the aperture of the cylinder closing bolt hole, and a boss structure is arranged on the outer edge of the end face of the upper part matched with the lower part.

In one embodiment, the boss structure is matched with the countersink structure.

In one embodiment, the stud is formed by an upper end and a lower end, the diameter of the upper end is smaller than that of the lower end, and an arc-shaped transition surface is arranged between the upper end and the lower end.

In one embodiment, the upper end and the lower end are provided with external threads.

In one embodiment, the threaded engagement of the stud with the custom nut is at least medium.

The technical scheme adopted by the invention can achieve the following beneficial effects:

the device has a simple structure and is convenient to operate, and the problem that the locating pin cannot be accurately inserted into the pin hole and the cylinder-closing stud is difficult to fix when the cylinder-closing of the semi-type parts is realized by providing the locating device.

Drawings

FIG. 1 is a schematic diagram of a positioning device;

FIG. 2 is a schematic view of a custom nut;

FIG. 3 is a schematic view of a stud;

FIG. 4 is a top view of the upper workpiece;

100-custom nuts, 101-upper, 102-lower, 103-threads, 200-studs, 201-upper, 202-lower, 300-upper work piece, 301-lower work piece, 302-cylinder bolt holes, 303-pin holes.

Description of the embodiments

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The work piece divide into work piece 300 and work piece 301 down, go up work piece 300 with it is provided with a plurality of interval distribution's a jar bolt hole 302 and pinhole 303 to go up to correspond down on the work piece 301, a jar bolt hole 302 upper segment sets up heavy platform structure, positioner includes: the device comprises a stud 200, a custom nut 100 and a locating pin, wherein the stud 200 is in clearance fit with the cylinder combining bolt hole 302, the custom nut 100 is in threaded connection with the stud 200, and the locating pin is in clearance fit with the pin hole 303.

Referring to fig. 2, the customized nut 100 is composed of an upper portion 101 and a lower portion 102, the inner diameters of the upper portion 101 and the lower portion 102 are the same, the outer diameter of the upper portion 101 is larger than the aperture of the cylinder closing bolt hole 302, the outer diameter of the lower portion 102 is smaller than the aperture of the cylinder closing bolt hole 302, the customized nut 100 is convenient to limit the stud 200 in the cylinder closing bolt hole 302, threads 103 are arranged in the upper portion 101 and are matched with the threads of the upper end 201 of the stud 200, the inner wall of the lower portion 102 is smooth, the screwing process of the customized nut 100 and the upper end 201 is smooth, meanwhile, the inner wall of the lower portion 102 is smooth, the axial deviation angle of the stud 200 can be finely adjusted when the customized nut 100 is screwed, the alignment of the upper workpiece 300 and the lower workpiece 301 is guaranteed, and a boss structure is arranged at one end, close to the lower portion 102, of the upper portion 101.

Referring to fig. 3, the stud 200 is formed of an upper end 201 and a lower end 202, the diameter of the upper end 201 is smaller than that of the lower end 202, an arc-shaped transition surface is disposed between the upper end 201 and the lower end 202, and the level of thread fit between the custom nut 100 and the upper end 201 of the stud 200 is at least a middle level.

Referring to fig. 1, an upper workpiece 300 and a lower workpiece 301 are placed on a cylinder combining platform in a flat manner, a plurality of corresponding pin holes 303 and cylinder combining bolt holes 302 are formed in the upper workpiece 300 and the lower workpiece 301 at intervals, the cylinder combining bolt holes of the upper workpiece 300 are through holes, the inner walls of the through holes are smooth, the cylinder combining bolt holes 302 of the lower workpiece 301 are blind holes, the blind holes are provided with threads, one end of the stud 200 is screwed into the cylinder combining bolt holes 302 formed in the lower workpiece 301, the upper workpiece 300 is threaded into the corresponding cylinder combining bolt holes 302 of the upper workpiece 300 along the stud 200, the custom nut 100 plays a role of connecting the stud 200 with the upper workpiece 300, the boss structure of the custom nut 100 is matched with the sinking platform structure of the cylinder combining bolt holes of the upper workpiece 300, the inner walls of the cylinder combining bolt holes are smooth, the lower end 202 of the stud 200 is connected with the cylinder combining bolt holes of the lower workpiece 301, the upper end 201 is connected with the custom nut 100, the upper end of the stud 200 is screwed into the corresponding cylinder combining bolt holes of the lower workpiece 301, the stud 200 is screwed into the corresponding cylinder combining bolt holes, and the corresponding cylinder combining bolt holes of the upper workpiece 300 are screwed into the corresponding cylinder combining bolt holes, and the positions of the cylinder combining bolt holes are completely matched with the cylinder combining bolt holes, and the cylinder combining bolt holes are completely matched with the stud holes, and the cylinder combining bolt holes are replaced by inserting holes, and the stud holes are completely matched with the corresponding cylinder holes, and the cylinder combining bolt holes are replaced by the bolt holes, and the positioning holes are completely matched with the bolt holes and the cylinder 300.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (5)

1. A positioner for semi-classification work piece, the work piece divide into work piece and lower work piece, go up the work piece with it is provided with a plurality of interval distribution's a jar bolt hole and pinhole to go up and correspond down on the work piece, a jar bolt hole upper segment sets up heavy platform structure, its characterized in that, positioner includes: the device comprises a double-end stud, a customized nut and a positioning pin, wherein the double-end stud is in clearance fit with the cylinder closing bolt hole, the customized nut is in threaded connection with the double-end stud, and the positioning pin is in clearance fit with the pin hole; the customized nut is divided into an upper part and a lower part, the inner diameter of the upper part is the same as that of the lower part, the upper part is provided with internal threads, the inner wall of the lower part is smooth, the outer diameter of the upper part is larger than the aperture of the cylinder closing bolt hole, the outer diameter of the lower part is smaller than the aperture of the cylinder closing bolt hole, and the outer edge of the end face of the upper part matched with the lower part is provided with a boss structure; the double-end stud consists of an upper end and a lower end, wherein the diameter of the upper end is smaller than that of the lower end, and an arc-shaped transition surface is arranged between the upper end and the lower end.

2. The positioning device of claim 1 wherein the boss structure mates with the counter structure.

3. The positioning device of claim 1 wherein said upper end and said lower end are each provided with external threads.

4. The positioning device of claim 1 wherein the threaded engagement of the stud with the custom nut is at least medium.

5. A method of using a positioning device according to any one of claims 1 to 4, comprising the steps of:

s1: the upper workpiece and the lower workpiece are horizontally placed on a cylinder combining platform, the lower end of the stud is screwed into a cylinder combining bolt hole in the middle of the lower workpiece, and the cylinder combining bolt hole of the upper workpiece penetrates through the stud;

s2: the customized nut is connected with the upper end of the double-end stud through threads, and when the matching distance between an upper workpiece and a lower workpiece is fastened by the customized nut, the pin hole on the lower workpiece can be clearly observed through the pin hole of the upper workpiece;

s3: and inserting the locating pin into the pin hole through the upper workpiece, screwing the cylinder closing bolt into the other empty cylinder closing bolt hole, fastening the cylinder closing bolt to a clearance of a matching surface to meet the preset requirement, taking out the stud, replacing the stud with the cylinder closing bolt, and closing the cylinder.