CN210498336U

CN210498336U - Convenient to use's drawing pin

Info

Publication number: CN210498336U
Application number: CN201920715373.5U
Authority: CN
Inventors: 何文东; 洪家朴; 艾明
Original assignee: Wuhu Jiuhong Heavy Industry Co ltd
Current assignee: Wuhu Jiuhong Heavy Industry Co ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-05-12
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a convenient to use's lift pin, include: the nut and the screw are hexagonal nuts, a threaded hole is formed in the middle of the nut, one of the surfaces of the outer peripheral surface of the nut is welded with the screw, the screw is composed of a nut, a cylindrical portion and a necking portion, the nut of the screw is welded with the nut, the nut is arranged at one end of the cylindrical portion, one end, away from the nut, of the necking portion is sharp, and external threads are arranged on the outer peripheral surface, close to one side of the necking portion, of the necking portion and the cylindrical portion. The utility model discloses when using, insert the loose piece with the screw in, slowly rotate to certain degree of depth after, then through the lift pin with the loose piece outside tensile can, have labour saving and time saving, convenient to use's advantage, and this application is made conveniently, the material source is extensive, the cost is with low costs.

Description

Convenient to use's drawing pin

Technical Field

The utility model relates to a convenient to use's lift pin is applied to metal casting processing technology field.

Background

Important parts of the large gantry machining center comprise a lathe bed, a workbench, a cross beam, a stand column and the like, main structural parts of the large gantry machining center are formed by casting, a mold is needed in the casting process, a movable block is a part of the mold, is separated from a main mold in the mold making process, is connected with the main mold in the modes of a pin, a dovetail and the like, and is mainly used for sharing a boss of which the part is not on a parting surface and blocks which can be borrowed mutually. The movable block can reduce the difficulty of mold making and modeling, save materials and reduce workload. After the casting mold is completed, the movable block needs to be taken out of the mold, for some large movable blocks, the mold stripping device can be installed on the movable block, for some movable blocks with small size, the mold stripping device cannot be installed, the movable block can be taken out only by manpower, some movable blocks are clamped tightly, and the product is easy to damage due to the fact that the movable block is manually taken out without an acting point. To the above-mentioned technique and problem, this application provides a convenient to use's lift pin.

SUMMERY OF THE UTILITY MODEL

For solving the defect of the prior art scheme, the utility model discloses a convenient to use's lift pin has convenient to use, labour saving and time saving's advantage.

The utility model discloses a convenient to use's lift pin, include: the nut and the screw are hexagonal nuts, a threaded hole is formed in the middle of the nut, one of the surfaces of the outer peripheral surface of the nut is welded with the screw, the screw is composed of a nut, a cylindrical portion and a necking portion, the nut of the screw is welded with the nut, the nut is arranged at one end of the cylindrical portion, one end, away from the nut, of the necking portion is sharp, and external threads are arranged on the outer peripheral surface, close to one side of the necking portion, of the necking portion and the cylindrical portion.

The inner diameter of the threaded hole in the nut is larger than 1 cm.

The length of the screw is more than 5 cm.

By adopting the technical scheme, the method has the following advantages:

1. when the screw is used, the screw is inserted into the loose piece, the loose piece is slowly rotated to a certain depth, and then the loose piece is stretched outwards through the lift pin;

2. time and labor are saved, and labor is saved compared with the traditional method of directly taking the loose piece manually;

3. the manufacturing cost is low, the combination of the nut and the screw is adopted, the manufacturing is simple, and the material source is wide.

Drawings

Fig. 1 is a schematic structural view of a lift pin of the present invention.

Wherein: 1-a nut; 2-screws; 21-a screw cap; 22-a cylindrical portion; 23-a throat; 231-external thread.

Detailed Description

As shown in fig. 1, the utility model discloses a convenient to use's lift pin, include: nut 1, screw 2, nut 1 is hexagon nut, the middle part of nut 1 is equipped with the screw hole, weld a screw 2 on one of them face of nut 1 outer peripheral face, screw 2 comprises nut 21, cylinder portion 22, throat portion 23, nut 21 and the nut 1 welding of screw 2 are in the same place, nut 21 sets up in cylinder portion 22 one end, the one end that throat portion 23 deviates from nut 21 is sharp-pointed form, all be equipped with external screw thread 231 on the outer peripheral face of throat portion 23 and cylinder portion 22 near throat portion 23 one side.

The inner diameter of a threaded hole in the nut 1 is larger than 1 cm.

The length of the screw 2 is more than 5 cm.

The utility model discloses an implement like this: after the casting is accomplished, need take out the loose piece from forming die on, can insert into the loose piece with 2 sharp-pointed one ends of screw, then slowly rotate, with 2 screw in loose pieces of a section distance, then the manual work holds 1 one end of nut, with the drawing pin outwards tensile, can be with the outside tensile department mould of loose piece, this application can find the impetus fast to take out the loose piece from the mould rapidly. Adopt this technical scheme, can replace artifical direct manual taking out loose piece from the mould, labour saving and time saving, and set up nut 1, the manual work can not only be followed whole holding nut 1, can also stretch into the screwed hole with the finger, and application method is various.

Finally, it should be noted that: the above embodiments are only used for illustrating the present invention and do not limit the technical solution described in the present invention; thus, while the present invention has been described in detail with reference to the various embodiments thereof, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and within the scope and spirit of the following claims.

Claims

1. An ejector pin that is easy to use, comprising: nut, screw, the nut is hexagon nut, the middle part of nut is equipped with screw hole, its characterized in that: the screw is welded on one of the surfaces of the outer peripheral surface of the nut, the screw is composed of a nut, a cylindrical portion and a necking portion, the nut of the screw is welded with the nut, the nut is arranged at one end of the cylindrical portion, one end, away from the nut, of the necking portion is sharp, and external threads are arranged on the outer peripheral surfaces of the necking portion and the cylindrical portion, close to one side of the necking portion.

2. A lift pin for ease of use as defined in claim 1, wherein: the inner diameter of the threaded hole in the nut is larger than 1 cm.

3. A lift pin for ease of use as defined in claim 1, wherein: the length of the screw is more than 5 cm.