CN203248484U - Locating pin used in forming mold tool - Google Patents

Abstract

The utility model relates to a positioning pin used in forming mold tooling. The positioning pin is divided into upper and lower parts. The upper part of the positioning pin is a spherical cylinder. The height of the spherical cylinder is 10mm, and the diameter of the spherical cylinder is 20mm. The center part of the top is a threaded hole, the diameter of the threaded hole is M6 or M8, and the depth of the threaded hole is 9mm. The lower end surface of the ball cylinder is provided with a step with a diameter of 16mm and a height of 2mm. The length of the cylinder is 12-60mm, the diameter of the lower cylinder is 2.5-10mm, and the lower end of the lower cylinder is chamfered at 2*15 degrees or 3*15 degrees or 4*15 degrees or 5*15 degrees. The utility model does not affect the use of the forming die while achieving the purpose of positioning, and also solves the problem that the positioning pin is not easy to disassemble during the use of the forming die.

Description

A positioning pin used in molding tooling

technical field

The utility model relates to a positioning pin used in forming mold tooling.

Background technique

In the molding molds currently used, many composite parts have complex structures. If the overall molding mold is designed, it will be difficult to remove the mold or even the product cannot be removed. Therefore, it is necessary to consider dividing the mold body into pieces during the design process. Separate each mold body, and then take out the product, which will involve the positioning and connection of each mold body, and some tooling will need some edge ribs when using, and these edge ribs will directly participate in tooling bagging and pumping. vacuum, they are also positioned and connected to the phantom. Connection problems can be solved with hexagon socket head screws (GB/T70.1-2000). The problem of positioning, some tooling can take out the product directly without disassembly, using cylindrical pins (GB/T119.1-2000) for positioning; some tooling needs to be disassembled to take out the product, then using curved handle cylindrical pins (HB1868-1987) for positioning ; Because the handle of this pin is relatively long, the vacuum bag will be damaged when the product is formed, and then the vacuum bag will leak, resulting in the failure of the manufactured product. Therefore, there is a need for a pin that can be positioned accurately and can be easily disassembled.

Contents of the invention

The purpose of the utility model is to propose a positioning pin used in forming mold tooling which can be positioned accurately and can be easily disassembled.

The technical solution of the utility model is that the locating pin of the utility model is divided into upper and lower parts, the upper part of the locating pin is a ball cylinder, the height of the ball cylinder is 10mm, the diameter of the ball cylinder is 20mm, and the distance between the spherical surface and the cylinder The connection is transitioned by a circular surface with a radius of 5mm. The center of the top of the spherical surface is a threaded hole. The diameter of the threaded hole is M6 or M8. The depth of the threaded hole is 9mm. The lower end surface of the ball cylinder has a diameter of 16mm and a height of 2mm steps, the lower part of the positioning pin is a cylinder, the length of the lower cylinder is 12-60mm, the diameter of the lower cylinder is 2.5-10mm, and the lower end of the lower cylinder is chamfered 2*15 degrees or 3*15 degrees or 4 *15 degrees or 5*15 degrees. The diameter of the upper spherical surface of the positioning pin is 32 mm.

The utility model has advantages and beneficial effects,

The positioning pin of the utility model, the lower cylinder can accurately locate the tooling; the connection between the spherical surface and the cylinder adopts a round surface with a radius of 5mm for a smooth transition, and there is no damage to the vacuum bag during the use of the vacuum bag forming product. It will not affect the realization of vacuuming and other processes; the center part of the top of the spherical surface is designed as a threaded hole, which is convenient for the disassembly of the positioning pin after the tooling is used. Based on the novelty of these designs and the practicability during use, the utility model achieves the purpose of positioning without affecting the use of the forming die, and at the same time solves the problem that the positioning pin is not easy to disassemble during the use of the forming die. It enables accurate positioning between the mold bodies of the forming mold that needs to be divided into blocks, and is convenient for disassembly. At the same time, it can also meet the bagging requirements of the forming mold, which not only improves the work efficiency, but also improves the success rate of production and saves production. cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the application of the positioning pin in the molding die.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail. The positioning pin 1 is divided into upper and lower parts. The upper part of the positioning pin 1 is a spherical cylinder with a height of 10mm and a diameter of 20mm. The connection between the spherical surface and the cylinder is transitioned by a circular surface with a radius of 5mm. The center part of the top of the spherical surface is a threaded hole, the diameter of the threaded hole is M6 or M8, the depth of the threaded hole is 9mm, the lower end of the ball cylinder is provided with a step with a diameter of 16mm and a height of 2mm, and the lower part of the positioning pin is a cylinder , the length of the lower cylinder is 12-60mm, the diameter of the lower cylinder is 2.5-10mm, and the lower end of the lower cylinder is chamfered at 2*15 degrees or 3*15 degrees or 4*15 degrees or 5*15 degrees. The diameter of the upper spherical surface of the positioning pin 1 is 32 mm.

The design of positioning pin 1 is based on the particularity of its use. It is divided into upper and lower parts. The upper part is a spherical surface. The top center of the spherical surface is a threaded hole. Easy to disassemble, because glue may enter the pin hole when laying cloth on the forming mold, so that the pin is not easy to disassemble, the design of the threaded hole can eliminate this defect; the lower part is the matching part with the mold body (or bushing), according to ordinary Locating pin design. This kind of positioning pin adopts material 45, quenching: HRC33-38, surface oxidation.

Claims (2)

1. positioning dowel that is used for the forming die frock, it is characterized in that, positioning dowel is divided into up and down two-part, the top of positioning dowel is spherocylinder, the spherocylinder height is 10mm, the diameter of spherocylinder is 20mm, sphere and cylindrical joint are the disc transition of 5mm by radius, the top center position of sphere is tapped hole, the diameter of tapped hole is M6 or M8, the degree of depth of tapped hole is 9mm, it is 16mm that the lower end surface of spherocylinder is provided with diameter, highly be the step of 2mm, the bottom of positioning dowel is cylindrical body, and the length of lower cylindrical body is 12-60mm, the diameter of lower cylindrical body is 2.5-10mm, the lower chamfer 2*15 degree of lower cylindrical body or 3*15 degree or 4*15 degree or 5*15 degree.

2. according to claim 1. a kind of positioning dowel for the forming die frock is characterized in that described positioning dowel top spherical diameter is 32mm.

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