CN215787270U

CN215787270U - End plate drilling and milling integrated screw tap

Info

Publication number: CN215787270U
Application number: CN202121832336.6U
Authority: CN
Inventors: 徐力; 徐胜; 戴曦; 顾斌
Original assignee: Changshu Longteng Rolling Element Co ltd; Changshu Longteng Special Steel Co Ltd
Current assignee: Changshu Longteng Rolling Element Co ltd; Changshu Longteng Special Steel Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-02-11
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to an end plate drilling and milling integrated screw tap which comprises a screw tap body, wherein screw tap teeth distributed annularly are arranged on the circumferential outer wall of the screw tap body, at least three chip grooves are formed in the outer wall of the screw tap body, the chip grooves are formed in the circumferential outer wall along the axis direction of the screw tap body, the upper end of the screw tap body is connected with a driving assembly, a threaded hole is formed in the lower end face of the screw tap body, a milling cutter is fixed in the threaded hole through a fastening screw, the milling cutter is a disc-shaped end milling cutter, and at least three milling edges are arranged on the milling cutter. This application can effectively improve screw tap life when guaranteeing tapping quality.

Description

End plate drilling and milling integrated screw tap

Technical Field

The utility model relates to an end plate drilling and tapping integrated machining system.

Background

With the advance of the revolution of the domestic mechanical automation, the requirements of the processing precision and the yield of the end plate for the pretensioned prestressed concrete pipe pile are continuously improved, in the current processing technology of the through-diameter groove, a large through hole is processed firstly, a thread is milled in the through hole, then a small hole with half depth is drilled beside the through-diameter groove, and finally the through-diameter groove and the center of the small hole with half punched are punched through together by a punch. In the process of drilling the end plate, at present, through holes are firstly punched by a punch press and then tapped by a screw tap, but in the process of machining, as the end plate has considerable thickness and hardness, a trapezoidal punching head is mostly adopted for convenience in punching, so that the machined hole pattern is small at the top and large at the bottom, the hole diameter of the screw tap must be firstly enlarged and then the screw tap is simultaneously tapped during tapping, the working difficulty of the screw tap is brought, the service life of the screw tap is influenced, and the final quality of a company is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an end plate drilling and milling integrated screw tap which can effectively prolong the service life of the screw tap while ensuring the tapping quality.

The end plate drilling and milling integrated screw tap comprises a screw tap body, screw tap teeth are distributed on the outer wall of the circumference of the screw tap body in an annular mode, at least three chip discharge grooves are formed in the outer wall of the screw tap body, the chip discharge grooves are formed in the outer wall of the circumference along the axis direction of the screw tap body, the upper end of the screw tap body is connected with a driving assembly, a threaded hole is formed in the lower end face of the screw tap body, a milling cutter is fixed in the threaded hole through a tightening screw, the milling cutter is a disc-shaped end milling cutter, and at least three milling edges are formed in the milling cutter.

Optionally, the milling diameter of the milling cutter is not larger than the maximum diameter of the tap teeth at the tap body.

Optionally, the flutes are arcuate in cross-section.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the end plate drilling and milling integrated screw tap, the screw tap structure is specially designed, the detachable end milling cutter is matched for tapping, the hole diameter can be enlarged through the end milling cutter before tapping, so that pretreatment is provided for tapping, the drilling and milling and the tapping are driven through the rotation of the screw tap body, the structure is simplified, the machining efficiency is improved, the hole forming quality is guaranteed, and meanwhile the service life of the screw tap is effectively prolonged.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural view of an end plate drill-mill integrated tap according to one embodiment of the present invention;

fig. 2 is an axial view of the end plate drill-mill integrated tap of fig. 1.

Wherein the reference numerals are as follows:

1. the tap comprises a tap body, 2, tap teeth, 3, chip grooves, 4 and a milling cutter.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiment provides an end plate bores and mills integral type screw tap, as shown in fig. 1, fig. 2, including screw tap body 1, screw tap tooth 2 that is the annular distribution is seted up to the circumference outer wall of screw tap body 1, follows three at least chip grooves 3 have been seted up to the outer wall of screw tap body 1, chip grooves 3 along the axis direction of screw tap body 1 sets up on the circumference outer wall, the upper end of screw tap body 1 links to each other with drive assembly, set up threaded hole on the lower terminal surface of screw tap body 1, milling cutter 4 is fixed through tightly deciding the screw in the screw hole, wherein, milling cutter 4 is discoid end mill 4, the three at least face milling sword has on milling cutter 4.

For smooth chip removal, the cross section of the chip removal groove 3 is arc-shaped.

The utility model provides an end plate bores mills integral type screw tap, it is through carrying out the special design to the screw tap structure, cooperation detachable end mill 4 carries out the tapping, can be earlier through end mill 4 enlarged bore diameter before the tapping to for the tapping action provides the pretreatment, nevertheless bore and mill and the tapping are that the rotation an organic whole through screw tap body 1 carries out the driven, simplified the structure, but improved machining efficiency, guaranteed the pore-forming quality, effectively prolong the life of screw tap simultaneously.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides an end plate bores and mills integral type screw tap, a serial communication port, includes the screw tap body, the screw tap tooth that is the annular distribution is seted up to the circumference outer wall of screw tap body, follows three at least chip grooves have been seted up to the outer wall of screw tap body, the chip groove along the axis direction of screw tap body sets up on the circumference outer wall, the upper end of screw tap body links to each other with drive assembly, set up threaded hole on the lower terminal surface of screw tap body, milling cutter is fixed through holding the screw in the screw hole, wherein, milling cutter is discoid end mill, the last three at least milling blades that have of milling cutter.

2. The end plate drilling and milling integrated tap according to claim 1, wherein the drilling and milling diameter of the milling cutter is not greater than the maximum diameter of the tap teeth at the tap body.

3. The end plate drilling and milling integrated tap according to claim 1, wherein a cross section of the flute is curved.