CN203516355U

CN203516355U - Cylinder locating pin

Info

Publication number: CN203516355U
Application number: CN201320533866.XU
Authority: CN
Inventors: 吴怀青
Original assignee: TIANJIN YIQING HAOYU PRECISION MOULD Co Ltd
Current assignee: TIANJIN YIQING HAOYU PRECISION MOULD Co Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-04-02
Anticipated expiration: 2023-08-29

Abstract

The utility model provides a cylinder locating pin which is composed of a body part and a plug-in part. The body part is of an elliptical columnar structure. Bosses are symmetrically arranged on the edges of the bottom of the body part. The plug-in part is fixed in the middle of the upper surface of the body part, and the middle of the plug-in part and the middle of the body part are communicated and form a pin hole. The cylinder locating pin is simple in structure and ingenious in design, due to the special structural design of the body part and the plug-in part, the fixing effect between a male die and a female die is prominent, accurate positioning can be performed in a pre-machining process, a gap formed in the machining process between the male die and the female die is effectively reduced, meanwhile, the good shearing-resisting function is achieved, and the cone locating pin meets the requirement for large-scale industrial production.

Description

A kind of cylindrical positioning pins

Technical field

The utility model relates to mould manufacturing field, especially a kind of cylindrical positioning pins.

Background technique

Locating stud is in the mould consisting of two-part or more parts, the adjacent two-part of mould are accurately located and the pin of design, visible, locating stud plays the role of positioning, mould must just can be made perfect product by accurate synchronization when closure, and locating stud can allow upper and lower two molds play the effect of accurate location.

In Design of Dies and manufacture, locating stud is one of modal part, and because it is only for the location between part, therefore, few people can give it and too much pay close attention to.

In Cold Press Working, the dimensional accuracy of blanking part depends on the size of punch-die working portion, and the dimension difference between them forms blanking die gap.Gap is the important technical parameter of Stamping Die Design, and its size has a great impact tools such as blanking part cross section quality, blanking force, die lifes.Excessive gap, stamping-out there will be punching burr; Gap is too small, and section can produce secondary slight crack, occurs extruding burr, all make the cross section quality after stamping-out undesirable, and reasonable clearance not only contributes to the raising of stamping-out cross section quality, also contributes to the raising of die life.

In manufacturing process, according to the different gap assured plan adopting in Design of Dies, correspondingly take different gap equipment adjustment methods, at present, normal use have equipment adjustment methods such as pad method, light transmission method, method of measurement, copper facing (zinc) method, coating, technique allowance, positioning work piece location.

In general, the working part that punch, die are processed respectively, because the reasonable clearance of mould in theory forms, therefore, its assembling principle is to fix the working part of be difficult for adjusting, and guarantees that by adjusting the position that the position of another working part changes between punch-die gap is even, now, only pull tight in advance screw, not fixed locating stud.

Yet practical experience is for many years noticed those skilled in the art, if can pay close attention to targetedly locating stud, use locating stud, often can produce the special effect of getting twice the result with half the effort in Design of Dies or manufacture process.Therefore, for particular mold, design targetedly locating stud, there is very important production practices meaning.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of cylindrical positioning pins.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of cylindrical positioning pins, by main body part and insertion parts, formed, described main body part is oval column structure, this main body part bottom margin is arranged with boss, described insertion parts is fixed on described main body part upper surface middle part, and this insertion parts and main body part middle part is communicated with and forms pin-and-hole.

Preferably, above-mentioned cylindrical positioning pins, described insertion parts is cylindrical-shaped structure.

Preferably, above-mentioned cylindrical positioning pins, the cross section of described pin-and-hole is circular.

Preferably, above-mentioned cylindrical positioning pins, the material of described main body part and insertion parts is On The Quality of Bearing Steels.

The utility model structure has following beneficial effect:

Above-mentioned cylindrical positioning pins, simple in structure, design ingenious, the special construction design of main body part and insertion parts, outstanding to the fixed effect between punch, die, formerly in course of working, accurately locate, effectively reduced the gap forming in course of working between punch, die, play good anti-shearing effect simultaneously, be applicable to the needs of large-scale industrial production.

Accompanying drawing explanation

Fig. 1 is the structural representation of cylindrical positioning pins described in the utility model;

Fig. 2 is the worm's eye view of cylindrical positioning pins described in the utility model.

In figure: 1-main body part 2-boss 3-insertion parts 4-pin-and-hole

Embodiment

For further illustrating the utility model, now coordinate accompanying drawing to be described in detail:

As depicted in figs. 1 and 2, described cylindrical positioning pins, by the main body part 1 of On The Quality of Bearing Steels and the insertion parts 3 of On The Quality of Bearing Steels, formed, described main body part 1 is oval column structure, this main body part 1 bottom margin is arranged with boss 2, described insertion parts 3 is cylindrical-shaped structure, and this insertion parts 3 is fixed on described main body part 1 upper surface middle part, and this insertion parts 3 and main body part 1 middle part are communicated with and form cross section is circular pin-and-hole 4.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a cylindrical positioning pins, by main body part and insertion parts, formed, it is characterized in that: described main body part is oval column structure, this main body part bottom margin is arranged with boss, described insertion parts is fixed on described main body part upper surface middle part, and this insertion parts and main body part middle part is communicated with and forms pin-and-hole.

2. cylindrical positioning pins according to claim 1, is characterized in that: described insertion parts is cylindrical-shaped structure.

3. cylindrical positioning pins according to claim 1, is characterized in that: the cross section of described pin-and-hole is for circular.

4. cylindrical positioning pins according to claim 1 and 2, is characterized in that: the material of described main body part and insertion parts is On The Quality of Bearing Steels.