CN215509130U

CN215509130U - Drilling and milling integrated cutter

Info

Publication number: CN215509130U
Application number: CN202121840448.6U
Authority: CN
Inventors: 戴少杰; 恽建琴; 戴志伟
Original assignee: Changzhou Zhiwei Tools Co ltd
Current assignee: Changzhou Zhiwei Tools Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-14
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to a drilling and milling integrated cutter, which comprises a cutter handle and a central drill, wherein the cutter handle comprises a mounting section and a drilling and milling section, a containing hole of the central drill is formed in the center of one end face of the drilling and milling section, which is far away from the mounting section, the central drill extends into the containing hole, one end part of the central drill is remained outside the containing hole, chip grooves are respectively formed in the drilling and milling sections at two sides of the containing hole, one surface of each chip groove is a mounting plane, a blade mounting groove is formed in the mounting plane, and the other surface of each chip groove is formed by connecting a straight inclined surface and an arc surface. According to the utility model, the center drill and the milling cutter are simultaneously arranged on one cutter handle, so that the periphery of the hole can be milled while drilling, and the processing quality of the hole and the periphery of the hole is ensured; the chip removal of drilling and milling is fully considered by the design of the chip groove, and the chip removal is maximized.

Description

Drilling and milling integrated cutter

Technical Field

The utility model relates to the technical field of cutters, in particular to a drilling and milling integrated cutter.

Background

The existing drill bit can only drill holes and cannot mill the surface of a plate. When drilling on sheet metal, have partly metal piece fly to the panel around drilling, if can carry out the milling process in advance to panel around the hole simultaneously in drilling, then can guarantee the effect of follow-up processing, and can guarantee the life of processing cutter.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: overcomes the defects in the prior art and provides a drilling and milling integrated cutter.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a bore and mill integrative cutter, bores including handle of a knife and center, the handle of a knife includes the installation section and bores the section of milling, bore the section of milling and keep away from the terminal surface center of installation section and set up the holding hole that the center bored, the center bores and stretches into in the holding hole and its tip is stayed outside the holding hole, the brill of holding hole both sides mills the section and has a chip groove respectively, the one side of chip groove is mounting plane, the last blade mounting groove of having seted up of mounting plane, the another side of chip groove is met by straight inclined plane and arc surface and is formed.

The center drill and the milling cutter are simultaneously arranged on one cutter handle, so that the periphery of the hole can be milled while drilling, and the processing quality of the hole and the periphery of the hole is ensured; the chip removal of drilling and milling is fully considered by the design of the chip groove, and the chip removal is maximized.

Further defined, the center drill is a double-head cone-protection center drill.

So set up, the core drill can be used by the double-end. The cone-protecting type center drill is widely applied to various machining due to the using advantages thereof, and the structural characteristics thereof are mainly shown as follows: 1. drilling the workpiece by the drill point; 2. the taper of the taper hole is consistent with the taper of the tip on a machine tool, so that the workpiece and the tip can be in overall contact when the subsequent machining is carried out, the coaxiality of two ends of the workpiece is ensured on one hand, the tip is uniformly worn on the other hand, and the tip is prevented from being scrapped due to local wear; 3. the function of the protection cone is to protect the cone from being damaged and to guide the ball center.

Further defined, the point angle and the angle of the pilot cone of the central drill are 120 °, which ensures a cone angle of 60 °.

In order to ensure the hardness of the machining part of the center drill, the center drill is further limited to be provided with coatings within the range of 10mm from the end parts at both ends.

In order to facilitate the limiting of the center drill, the outer wall of the drilling and milling section is further limited, and a pin hole of the limiting center drill is formed in the outer wall of the drilling and milling section.

In view of milling the end face, it is preferable that the blade mounting groove has a triangular cross section, and a blade is fixed in the blade mounting groove by a pin.

In order to ensure the blade is firmly fixed, the edge of the installation plane close to the blade installation groove is further limited to be provided with a pressing block for pressing the blade.

In order to facilitate the installation of the cutter on a numerical control machine tool or a special lathe, the peripheral surface of the installation section is further limited to be provided with a limiting inclined plane groove.

The utility model has the beneficial effects that: according to the utility model, the center drill and the milling cutter are simultaneously arranged on one cutter handle, so that the periphery of the hole can be milled while drilling, and the processing quality of the hole and the periphery of the hole is ensured; the chip removal of drilling and milling is fully considered by the design of the chip groove, and the chip removal is maximized.

Drawings

The utility model is further described with reference to the following figures and embodiments.

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

Fig. 2 is a schematic structural view of the tool shank of the present invention.

Fig. 3 is a schematic view of the construction of the center drill of the present invention.

In the figure: 1. the cutter comprises a cutter handle, 2 parts of a center drill, 3 parts of a blade, 4 parts of a pressing block, 11 parts of a mounting section, 12 parts of a drilling and milling section, 13 parts of a containing hole, 14 parts of a chip groove, 111 parts of a limiting inclined plane groove, 141 parts of a mounting plane, 142 parts of a blade mounting groove, 143 parts of a straight inclined plane, 144 parts of an arc surface and 15 parts of a pin hole.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1 and 2, the drilling and milling integrated tool comprises a tool holder 1 and a center drill 2, wherein the tool holder 1 comprises a mounting section 11 and a drilling and milling section 12, a containing hole 13 of the center drill 2 is formed in the center of one end face of the drilling and milling section 12, which is far away from the mounting section 12, the center drill 2 extends into the containing hole 13, one end part of the center drill is left outside the containing hole 13, chip flutes 14 are respectively arranged on the drilling and milling sections 12 on two sides of the containing hole 13, one face of each chip flute 14 is a mounting plane 141, a blade mounting groove 142 is formed in the mounting plane 141, and the other face of each chip flute 14 is formed by connecting a straight inclined face 143 and an arc face 144.

Wherein, the outer wall of the drilling and milling section 11 is provided with a pin hole 15 for limiting the central drill 2. The cross section of the blade mounting groove 142 is triangular, and a blade 3 is fixed in the blade mounting groove 142 through a pin shaft. The edge of the mounting plane 141 near the blade mounting groove 142 is provided with a pressing block 4 for pressing the blade 3. The outer peripheral surface of the mounting section 11 is provided with a limiting inclined plane groove 111.

As shown in fig. 3, the center drill 2 is a double head cone protection center drill. The top angle (alpha in fig. 2) and the angle of the pilot cone of the central drill 2 are 120 deg. (beta in fig. 2), ensuring a cone angle of 60 deg. (gamma in fig. 2). The central drill 2 is provided with coatings within the range of 10mm from the end parts at two ends.

The drilling and milling integrated cutter can replace a traditional cutter for drilling a central hole and a milling cutter disc for machining an end face, a numerical control lathe and a special machine tool can be used, and the cutter handle 1 is compact in structure and can be applied to the condition of limited cutter space. The central drill 2 is a double-head cone protecting central drill, and both ends of the central drill can be used, so that the processing cost is saved.

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 present invention, and not to limit the scope of the present invention, 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 a bore integrative cutter of milling, bores its characterized in that including handle of a knife and center: the handle of a knife includes the installation section and bores the section of milling, bore the section of milling and keep away from the holding hole that the center bored is seted up at a terminal surface center of installation section, the center bores and stretches into the holding downthehole and its tip and stay outside the holding hole, the brill of holding hole both sides mills the section and has a chip groove respectively, the one side of chip groove is mounting plane, the last blade mounting groove of having seted up of mounting plane, the another side of chip groove is met by straight inclined plane and arc surface and forms.

2. The integrated drilling and milling cutter as claimed in claim 1, wherein: the center drill is a double-head cone protecting center drill.

3. The integrated drilling and milling cutter as claimed in claim 2, wherein: the top angle and the cone protecting angle of the central drill are 120 degrees, and the cone angle is ensured to be 60 degrees.

4. The integrated drilling and milling cutter as claimed in claim 2, wherein: and coatings are arranged in the range of 10mm from the end parts of the two ends of the central drill.

5. The integrated drilling and milling cutter as claimed in claim 1, wherein: and the outer wall of the drilling and milling section is provided with a pin hole for limiting the central drill.

6. The integrated drilling and milling cutter as claimed in claim 1, wherein: the cross section of the blade mounting groove is triangular, and a blade is fixed in the blade mounting groove through a pin shaft.

7. The integrated drilling and milling cutter as claimed in claim 6, wherein: and a pressing block for pressing the blade is arranged on the edge, close to the blade mounting groove, of the mounting plane.

8. The integrated drilling and milling cutter as claimed in claim 1, wherein: and the peripheral surface of the mounting section is provided with a limiting inclined plane groove.