CN210387722U

CN210387722U - Novel dovetail groove milling cutter

Info

Publication number: CN210387722U
Application number: CN201920656651.4U
Authority: CN
Inventors: 韩学华; 何琦; 田齐
Original assignee: Chengdu Bangpu Cutting Tools Co ltd
Current assignee: Chengdu Bangpu Cutting Tools Co ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-04-24
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a novel dovetail groove milling cutter, including cutter arbor and carbide tool bit, the vertical cross-section of cutter arbor is stepped shaft type structure, the carbide tool bit has been cup jointed in the one end outside of cutter arbor, two sets of T type keys are installed about the horizontal central line symmetry of cutter arbor in the junction outside of cutter arbor and carbide tool bit, and the outside of two sets of T type keys is vertical equal sliding fit and has the screw that runs through T type key, one side that the inside of cutter arbor is close to the screw is the vertical first screw of seting up cooperation screw use, the cutter arbor is close to the inside level of being of one end of carbide tool bit and has seted up the second screw. The utility model discloses in, adopt integrated configuration, adopt steel cutter arbor and carbide tool bit matched with design pattern, improved by machined surface quality and machining efficiency, reduced manufacturing procedure, great saving the cost to perfect combination high-speed steel material and carbide material advantage in processing.

Description

Novel dovetail groove milling cutter

Technical Field

The utility model relates to a dovetail groove milling cutter technical field especially relates to a novel dovetail groove milling cutter.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

The conventional dovetail slot milling cutter made of high-speed tool steel is short in service life, and the machined surface of a workpiece has poor roughness, so that the machining efficiency is low; the cost of the dovetail slot milling cutter made of the integral hard alloy material is too high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the novel dovetail groove milling cutter is provided for solving the problems that the service life is short, the roughness of the machined surface of a workpiece is poor, the machining efficiency is low, and the machining cost of the integral dovetail groove milling cutter made of the hard alloy material is too high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel dovetail groove milling cutter, includes cutter arbor and carbide tool bit, the vertical cross-section of cutter arbor is stepped shaft type structure, the carbide tool bit has been cup jointed in the one end outside of cutter arbor, two sets of T type keys are installed about the horizontal central line symmetry of cutter arbor in the junction outside of cutter arbor and carbide tool bit, and the outside of two sets of T type keys is vertical equal sliding embedding has the screw that runs through T type key, one side that the inside of cutter arbor is close to the screw is the vertical first screw of seting up the cooperation screw and using, the cutter arbor is close to the inside level of being of one end of carbide tool bit and has seted up the second screw, the one end that the outside of cutter arbor is located the carbide tool bit is the level through the second screw and closes soon to be connected with the end screw, and the exterior wall of end screw has cup jointed the gasket between the space department that is.

As a further description of the above technical solution:

the inside of cutter arbor is close to one side of T type key and is seted up the first draw-in groove that cooperation T type key used, the inside of carbide tool bit is close to one side of T type key and is seted up the second draw-in groove that cooperation T type key used, first draw-in groove and second draw-in groove all are transition fit with T type key.

As a further description of the above technical solution:

the inside of carbide tool bit is the level and has seted up the installation slide opening that cooperation cutter arbor used, and installation slide opening and carbide tool bit are transition fit.

As a further description of the above technical solution:

the outer end face of the hard alloy cutter head is fixedly connected with multiple groups of cutting edges in an annular array mode, and the multiple groups of cutting edges are made of hard alloy.

As a further description of the above technical solution:

the inside of two sets of T type keys is located the outside of screw and all sets up the mounting groove that the cooperation screw used, and mounting groove and screw are clearance fit.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, adopt integrated configuration, adopt steel cutter arbor and carbide tool bit matched with design pattern, improved by machined surface quality and machining efficiency, reduced manufacturing procedure, great saving the cost to perfect combination high-speed steel material and carbide material advantage in processing.

Drawings

Fig. 1 is a schematic perspective view of a dovetail slot milling cutter according to the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic structural view of the position a-a of the present invention.

Illustration of the drawings:

1. a cutter bar; 2. a T-shaped bond; 3. a screw; 4. a cemented carbide tip; 5. a gasket; 6. an end screw; 7. a first card slot; 8. a second card slot; 9. a first screw hole; 10. and a second screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In a first embodiment, please refer to fig. 1-3, the present invention provides a technical solution: a novel dovetail groove milling cutter comprises a cutter bar 1 and a hard alloy cutter head 4, wherein the vertical section of the cutter bar 1 is of a stepped shaft structure, the hard alloy cutter head 4 is sleeved on the outer side of one end of the cutter bar 1, two groups of T-shaped keys 2 are symmetrically arranged on the outer side of the joint of the cutter bar 1 and the hard alloy cutter head 4 relative to the horizontal central line of the cutter bar 1, the T-shaped keys 2 are arranged, the cutter bar 1 and the hard alloy cutter head 4 can be clamped and connected, so that the rotation and shaking of the hard alloy cutter head 4 on the outer side of the cutter bar 1 are limited, screws 3 penetrating through the T-shaped keys 2 are vertically and uniformly embedded in the outer sides of the two groups of T-shaped keys 2, the screws 3 are arranged, the T-shaped keys 2 can be limited and fixed between the joint of the cutter bar 1 and the hard alloy cutter head 4, the mounting and fixing stability of the T-shaped keys 2 is improved, one side, close to the screws 3, in, cutter arbor 1 is close to the inside level that is of one end of carbide tool bit 4 and has seted up second screw 10, the outside one end that is located carbide tool bit 4 of cutter arbor 1 is the level through second screw 10 and closes soon and be connected with end screw 6, the setting of end screw 6, the one end at cutter arbor 1 is installed to carbide tool bit 4 of being convenient for, and the exterior wall of end screw 6 has cup jointed gasket 5 between the space department that is located end screw 6 and carbide tool bit 4, the setting of gasket 5, can carry out the elastic support with the gap department between end screw 6 and the carbide tool bit 4 and handle, thereby promote the stability that carbide tool bit 4 was installed on cutter arbor 1.

Embodiment two, as shown in fig. 2 and 3, a first clamping groove 7 used by matching with the T-shaped key 2 is provided at one side of the inside of the cutter bar 1 close to the T-shaped key 2, a second clamping groove 8 used by matching with the T-shaped key 2 is provided at one side of the inside of the cemented carbide tool bit 4 close to the T-shaped key 2, the first clamping groove 7 and the second clamping groove 8 are in transition fit with the T-shaped key 2, the first clamping groove 7 and the second clamping groove 8 are arranged, the T-shaped key 2 is conveniently clamped and placed, meanwhile, the first clamping groove 7 and the second clamping groove 8 are in transition fit with the T-shaped key 2, the connection stability between the cutter bar 1 and the T-shaped key 2 and the cemented carbide tool bit 4 is improved, and therefore, the generation of the phenomenon that the cemented carbide tool bit 4 slides and rocks on the cutter bar.

Embodiment three, as shown in fig. 1 and 3, the inside of carbide tool bit 4 is the level and has seted up the installation slide opening that cooperation cutter arbor 1 used, and installation slide opening and carbide tool bit 4 are transition fit, annular array fixedly connected with multiunit cutting edge is personally submitted to the outer end of carbide tool bit 4, and multiunit cutting edge is carbide and makes, the setting of installation slide opening, the outer end at cutter arbor 1 is installed to carbide tool bit 4 of being convenient for, installation slide opening and carbide tool bit 4 are transition fit simultaneously, the stability of cutter arbor 1 and carbide tool bit 4 installation has been improved, multiunit cutting edge is carbide and makes, the intensity and the hardness of carbide tool bit 4 have been promoted, thereby carbide tool bit 4's life has been prolonged.

In the fourth embodiment, as shown in fig. 3, the inside of the two sets of T-shaped keys 2 located outside the screws 3 are provided with mounting grooves for the screws 3 to use, and the mounting grooves and the screws 3 are in clearance fit, and the screws 3 are placed and fixed when being screwed into the first screw holes 9 due to the mounting grooves.

The working principle is as follows: the dovetail slot milling cutter needs to be assembled, the hard alloy cutter head 4 horizontally slides into one end of the cutter bar 1 with a stepped shaft structure, the second clamping groove 8 arranged in the hard alloy cutter head 4 is rotated to be overlapped with the first clamping groove 7 arranged in the cutter bar 1, the T-shaped key 2 is vertically plugged into the first clamping groove 7 and the second clamping groove 8, the screw 3 is vertically screwed into the first screw hole 9 arranged in the cutter bar 1 through the T-shaped key 2 in an inserting manner, the rotation limiting and fixing treatment of the T-shaped key 2 and the hard alloy cutter head 4 is completed, the gasket 5 is sleeved outside the end screw 6, the end screw 6 is horizontally screwed into the second screw hole 10 arranged in the cutter bar 1, the installation and fixing treatment of the hard alloy cutter head 4 are completed after the screw is screwed, the combined structure not only facilitates the processing and the assembly treatment of the dovetail slot milling cutter, but also improves the quality and the processing efficiency of the processed surface, the processing procedures are reduced, thereby saving the manufacturing cost.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel dovetail groove milling cutter, includes cutter arbor (1) and carbide tool bit (4), its characterized in that, the vertical cross-section of cutter arbor (1) is step shaft type structure, carbide tool bit (4) have been cup jointed in the one end outside of cutter arbor (1), two sets of T type keys (2) are installed about the horizontal central line symmetry of cutter arbor (1) in the junction outside of cutter arbor (1) and carbide tool bit (4), and the outside of two sets of T type keys (2) is vertical equal sliding embedding screw (3) that have through T type key (2), one side that the inside of cutter arbor (1) is close to screw (3) is vertical first screw (9) of seting up cooperation screw (3) and using, inside the level of being of one end that cutter arbor (1) is close to carbide tool bit (4) has seted up second screw (10), the one end that the outside of cutter arbor (1) is located carbide tool bit (4) is the level through second screw (10) and closes to be connected with the end soon The outer surface wall of the end screw (6) is sleeved with a gasket (5) between the end screw (6) and the hard alloy cutter head (4).

2. The novel dovetail groove milling cutter according to claim 1, wherein a first clamping groove (7) matched with the T-shaped key (2) is formed in one side of the interior of the cutter bar (1) close to the T-shaped key (2), a second clamping groove (8) matched with the T-shaped key (2) is formed in one side of the interior of the cemented carbide tool bit (4) close to the T-shaped key (2), and the first clamping groove (7) and the second clamping groove (8) are in transition fit with the T-shaped key (2).

3. The new dovetail slotting cutter according to claim 1, characterized in that the inside of the cemented carbide insert (4) is horizontally provided with a slide hole for fitting the tool holder (1), and the slide hole is in transition fit with the cemented carbide insert (4).

4. A new dovetail milling cutter according to claim 1 or 3, characterized in that the outer end surface of the cemented carbide tip (4) is fixedly connected with a plurality of groups of cutting edges in a circular array, and the plurality of groups of cutting edges are made of cemented carbide.

5. The new dovetail slot milling cutter according to claim 1, characterized in that the inner portions of the two sets of T-shaped keys (2) located on the outer side of the screw (3) are provided with mounting slots for the screw (3), and the mounting slots and the screw (3) are in clearance fit.