CN219131453U

CN219131453U - Boring machine integrating boring, chamfering and countersinking

Info

Publication number: CN219131453U
Application number: CN202320156986.6U
Authority: CN
Inventors: 胡清洪
Original assignee: Chongqing Zhuhui Cnc Equipment Co ltd
Current assignee: Chongqing Zhuhui Cnc Equipment Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-06
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a boring machine integrating boring, chamfering and countersinking, which comprises a machine tool body, wherein a boring cutter holder is arranged on the machine tool body and is connected to the machine tool in a front-back sliding way through a sliding base, and the boring cutter holder is provided with a boring pushing mechanism for pushing the boring cutter holder to move back and forth; the front side of the boring cutter holder is provided with a cutter body, the cutter body comprises a cutter rest, and a boring cutter for boring a blank pipe, a chamfering cutter for chamfering a blank port and a countersink cutter for countersinking the blank port are sequentially arranged on the cutter rest from front to back; the countersink knife and the chamfer knife are respectively positioned at two sides of the knife rest, the processing cutting edge of the countersink knife is arranged forwards, and the processing cutting edge of the countersink knife is perpendicular to the axis of the knife rest. The boring machine can bore, process the excircle, chamfer, countersink and cut simultaneously, and improves the working efficiency.

Description

Boring machine integrating boring, chamfering and countersinking

Technical Field

The utility model relates to the technical field of processing machine tools, in particular to a boring machine integrating boring, chamfering and countersinking.

Background

Boring refers to the further processing of a forged, cast or drilled hole. The boring hole can enlarge the aperture, improve the precision, reduce the surface roughness and correct the deflection of the original hole axis well. In addition, the common workpiece machining also needs to machine chamfer angles and port countersinks in the boring holes. Whereas conventional machining tools can perform only one machining, such as rough boring and finish boring. And the next working procedure needs to be additionally clamped, which is time-consuming and labor-consuming. In addition, because deviation may occur in the clamping process, errors are easily caused when boring the inner hole, and therefore, when clamping is performed, the mounting position needs to be carefully adjusted, otherwise, the machining requirement cannot be met.

Or the cutting tools are clamped on the same machine tool, but different cutting tools are required to be switched for machining, and the position and the distance between the cutting tools and the workpiece are required to be adjusted before each switching, so that time and labor are wasted. Accordingly, there is an urgent need for a boring machine capable of simultaneously performing multiple processes.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art, and particularly creatively provides a boring machine integrating boring, chamfering and countersinking, which can simultaneously bore an inner hole, process an outer circle, chamfer, countersink and cut, improve the working efficiency and ensure the processing precision of the boring as far as possible.

In order to achieve the above purpose, the utility model provides a boring machine integrating boring, chamfering and countersinking, comprising a machine tool body, wherein a boring tool holder is arranged on the machine tool body, the boring tool holder is connected on the machine tool in a front-back sliding way through a sliding base, and the boring tool holder is provided with a boring pushing mechanism for pushing the boring tool holder to move back and forth;

the front side of the boring cutter holder is provided with a cutter body, the cutter body comprises a cutter rest, and a boring cutter for boring a blank pipe, a chamfering cutter for chamfering a blank port and a countersink cutter for countersinking the blank port are sequentially arranged on the cutter rest from front to back;

the countersink cutter and the chamfer cutter are respectively positioned at two sides of the cutter frame, the processing cutting edge of the countersink cutter is arranged forwards, and the processing cutting edge of the countersink cutter is perpendicular to the axis of the cutter frame;

the boring cutter is a plurality of axially arranged boring cutters, all boring cutters are arranged at the front end of the cutter frame and are in acute triangle, wherein a certain acute angle is formed between the edge of any boring cutter, which is close to the outer side of the cutter frame, and the axis of the cutter frame, and the cutter point of the boring cutter, which extends out of the cutter frame, is the cutter point of the rear side, the edges of the front sides of the rest boring cutters are all perpendicular to the axis of the cutter frame, and the cutter points of the front sides extend out of the cutter frame, so that deviation in the front-rear direction exists between the processing cutter point of the boring cutter and the processing cutter points of the rest boring cutters, and the processing precision of the boring cutter is higher than that of the rest boring cutter, so that the processing cutter point of the boring cutter is a sleeking cutter.

In the scheme, the method comprises the following steps: the countersink cutter and the chamfer cutter are respectively positioned at two sides of the cutter frame, the processing cutting edge of the countersink cutter is arranged forwards, and the processing cutting edge of the countersink cutter is perpendicular to the axis of the cutter frame;

the boring cutter is a plurality of axially arranged boring cutters, all boring cutters are arranged at the front end of the cutter frame and are in acute triangle, wherein a certain acute angle is formed between the edge of any boring cutter, which is close to the outer side of the cutter frame, and the axis of the cutter frame, and the cutter point of the boring cutter, which extends out of the cutter frame, is the cutter point of the rear side, the edges of the front sides of the rest boring cutters are all perpendicular to the axis of the cutter frame, and the cutter points of the front sides extend out of the cutter frame, so that deviation in the front-rear direction exists between the processing cutter point of the boring cutter and the processing cutter points of the rest boring cutters, and the processing precision of the boring cutter is higher than that of the rest boring cutter, so that the processing cutter point of the boring cutter is a sleeking cutter. The inner wall machined by the rest boring cutters can be finished by the trimming blade, so that the machining efficiency is improved.

In the scheme, the method comprises the following steps: all boring cutters are installed on a cutter frame through a first installation frame, installation ribs are arranged on the cutter frame corresponding to the boring cutters, strip-shaped holes extending back and forth are formed in the first installation frame, the first installation frame is fixed on the installation ribs through installation bolts penetrating through the strip-shaped holes, the boring cutter shaft is adjusted upwards through the strip-shaped holes, the position of the boring cutter is adjusted forwards and backwards, ejection screws are arranged on the cutter frame corresponding to each first installation frame, and the front ends of the first installation frames are ejected towards the outer sides of the cutter frame through the ejection screws, so that the radial adjustment of the boring cutters is achieved.

In the scheme, the method comprises the following steps: the chamfering tool and the countersink tool are mounted on the tool rest through second mounting frames, mounting holes extending left and right are formed in the tool rest corresponding to the second mounting frames, the second mounting frames are inserted into the mounting holes of the mounting tools, threaded holes perpendicular to the mounting holes and communicated with the mounting holes are formed in the tool rest, and the second mounting frames are abutted to the mounting holes through abutting bolts in the threaded holes in a threaded mode to achieve fixation. The boring cutter, the chamfering cutter and the countersink cutter are convenient to adjust in the radial direction and the axial direction.

In the scheme, the method comprises the following steps: the included angle of the acute angle is 10-20 degrees.

In the scheme, the method comprises the following steps: the cooling device is characterized in that a cooling channel extending forwards and backwards is arranged in the tool rest, the rear end of the cooling channel extends out of a main shaft of the tool rest, and a cooling branch channel is arranged at the front end of the cooling channel corresponding to each boring cutter. The cooling channel and the cooling branch channel can cool down the boring cutter, and the temperature of the boring cutter during cutting is reduced.

In the scheme, the method comprises the following steps: the boring pushing mechanism is a screw nut mechanism, a groove extending forwards and backwards is formed in the top of the machine tool, the boring pushing mechanism is fixed in the groove, and a sliding base on the machine tool is provided with a sliding rail for guiding the sliding base. The boring pushing mechanism is arranged in the groove, so that the space can be reasonably utilized, and the structure is more compact.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: the boring machine has the advantages that the boring machine integrates an inner hole, chamfering and countersinking, can be processed on the same machine tool, is not required to be converted into other machine tools, reduces the clamping time, improves the working efficiency, simultaneously avoids errors caused by repeated clamping, improves the processing precision and meets the processing requirements. And the finishing edge can finish machining the inner wall machined by other boring cutters, so that the machining precision is ensured, the clamping position of a workpiece is not required to be adjusted for multiple times, the distance and the position between each cutter and the workpiece are not required to be adjusted for multiple times, the one-step forming is realized, and the working efficiency is improved. The boring cutter is a plurality of axially arranged boring cutters, deviation in the front-rear direction exists between the trimming blade and the rest boring cutters, boring is conducted, trimming is conducted again, abrasion to the trimming blade can be reduced as much as possible, and the service time and machining precision of the trimming blade are guaranteed.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic view of the tool holder of the present utility model;

FIG. 3 is a schematic view of another angle of the tool holder of the utility model;

FIG. 4 is a cross-sectional view of the tool holder of the utility model;

fig. 5 is a cross-sectional view of the tool holder of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 5, a boring machine integrating boring, chamfering and countersinking comprises a machine tool body 1, wherein a boring tool holder 2 is arranged on the machine tool body 1, the boring tool holder 2 is connected on the machine tool 1 in a front-back sliding way through a sliding base 2a, and the boring tool holder 2 is provided with a boring pushing mechanism 1b for pushing the boring tool holder to move back and forth. Specifically, the boring pushing mechanism 1b is a screw nut mechanism, and the top of the machine tool 1 is provided with a groove 1a extending forwards and backwards. The boring pushing mechanism 1b is fixed in the groove 1a, and a sliding rail a for guiding the sliding base 2a is arranged on the machine tool 1 corresponding to the sliding base 2 a.

The front side of the boring cutter holder 2 is provided with a cutter body 3, the cutter body 3 comprises a cutter rest 3b, and the cutter rest 3b is sequentially provided with a boring cutter 3d for boring a blank pipe, a chamfering cutter 3g for chamfering a blank port and a countersink cutter 3h for countersinking the blank port from front to back.

Wherein, the countersink 3h and the chamfer 3g are respectively positioned at two sides of the tool rest 3b, the processing cutting edge of the countersink 3h is arranged forward, and the processing cutting edge is vertical to the axis of the tool rest 3 b.

The boring cutters 3d are a plurality of axially arranged boring cutters 3d, all boring cutters 3d are arranged at the front end of the cutter rest 3b and are in an acute triangle shape, wherein an included angle of 10-20 degrees is formed between the edge of any boring cutter 3d, which is close to the outer side of the cutter rest 3b, and the axis of the cutter rest 3b, and the cutter tips of the boring cutters 3d, which extend to the outer side of the cutter rest 3b, are the rear cutter tips, the edges of the front sides of the rest 3d are perpendicular to the axis of the cutter rest 3b, and the front cutter edges of the rest 3d, which extend to the outer side of the cutter rest 3b, so that deviation in the front-rear direction exists between the machining cutter tips of the boring cutters 3d and the machining cutter tips of the rest 3d, and the machining precision of the boring cutters 3d is higher than that of the rest 3d, so that the machining cutter tips of the boring cutters 3d are the trimming cutter tips 3d'. The inner wall machined by the rest boring cutter 3d can be finished by the trimming blade 3d', so that the machining efficiency is improved.

Preferably, all boring cutters 3d are all installed on the cutter frame 3b through the first mounting frame 3c, the cutter frame 3b is provided with a mounting rib corresponding to the boring cutters 3d, the first mounting frames 3c are all provided with strip-shaped holes 3f extending front and back, the first mounting frames 3c are fixed on the mounting rib through mounting bolts penetrating through the strip-shaped holes 3f, the axial adjustment of the boring cutters 3d is realized through the strip-shaped holes 3f, the adjustment of the front and back positions of the boring cutters 3d is realized, the cutter frame 3b is provided with ejection screws 3e corresponding to each first mounting frame 3c, the front ends of the first mounting frames 3c are ejected towards the outer side of the cutter frame 3b through the ejection screws 3e, and the radial adjustment of the boring cutters 3d is realized.

The chamfering tool 3g and the countersink tool 3h are mounted on the tool rest 3b through a second mounting frame 3l, mounting holes extending leftwards and rightwards are formed in the tool rest 3b corresponding to the second mounting frame 3l, the second mounting frame 3l is inserted into the mounting hole of the mounting tool, threaded holes 3i perpendicular to and communicated with the mounting holes are formed in the tool rest 3b, and the second mounting frame 3l is abutted against the mounting holes through abutting bolts in the threaded holes 3i in a threaded mode to achieve fixation. The boring cutter 3d, the chamfering cutter 3g and the countersink cutter 3h are convenient to adjust in the radial direction and the axial direction.

Preferably, a cooling channel 3j extending back and forth is provided in the tool holder 3b, the rear end of the cooling channel 3j extends out of the main shaft of the tool holder 3b, and a cooling branch channel 3k is provided at the front end of the cooling channel 3j corresponding to each boring tool 3 d. The cooling channel 3j and the cooling branch channel 3k can cool down the boring cutter 3d, and the temperature of the boring cutter 3d during cutting is reduced.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. Boring machine integrating boring, chamfering and countersinking, and is characterized in that: the boring machine comprises a machine tool body (1), wherein a boring cutter holder (2) is arranged on the machine tool body (1), the boring cutter holder (2) is connected to the machine tool body (1) in a front-back sliding way through a sliding base (2 a), and the boring cutter holder (2) is provided with a boring pushing mechanism (1 b) for pushing the boring cutter holder to move back and forth;

the front side of the boring cutter holder (2) is provided with a cutter body (3), the cutter body (3) comprises a cutter rest (3 b), and the cutter rest (3 b) is sequentially provided with a boring cutter (3 d) for boring a blank pipe, a chamfering cutter (3 g) for chamfering a blank port and a countersink cutter (3 h) for countersink the blank port from front to back;

the countersink cutter (3 h) and the chamfer cutter (3 g) are respectively positioned at two sides of the cutter rest (3 b), the processing cutting edge of the countersink cutter (3 h) is arranged forwards, and the processing cutting edge is perpendicular to the axis of the cutter rest (3 b);

the boring cutters (3 d) are a plurality of axially arranged boring cutters (3 d) and are all arranged at the front end of the cutter rest (3 b) and are acute-angle triangles, wherein a certain acute-angle included angle is formed between the edge of any boring cutter (3 d) close to the outer side of the cutter rest (3 b) and the axis of the cutter rest (3 b), the cutter point of the boring cutter (3 d) extending to the outer side of the cutter rest (3 b) is the rear cutter point, the edges of the front sides of the rest boring cutters (3 d) are all perpendicular to the axis of the cutter rest (3 b), and the front cutter edges extend to the outer side of the cutter rest (3 b), so that deviation exists between the processing cutter point of the boring cutter (3 d) and the processing cutter points of the rest boring cutters (3 d) in the front-rear direction, and the processing precision of the boring cutter (3 d) is higher than that of the rest boring cutter (3 d), and the processing cutter point of the boring cutter (3 d) is a light cutter point (3 d').

2. The boring machine integrating boring, chamfering and countersinking as claimed in claim 1, wherein: all boring cutter (3 d) are all installed on knife rest (3 b) through first mounting bracket (3 c), corresponding boring cutter (3 d) are provided with the installation bead on knife rest (3 b), all be equipped with bar hole (3 f) that extend around on first mounting bracket (3 c), first mounting bracket (3 c) are fixed on the installation bead through the mounting bolt that passes bar hole (3 f) to realize boring cutter (3 d) axial regulation through bar hole (3 f), realize boring cutter (3 d) fore-and-aft position's regulation, be equipped with ejection screw (3 e) on knife rest (3 b) corresponding to every first mounting bracket (3 c), through ejection screw (3 e) are ejecting first mounting bracket (3 c) front end towards knife rest (3 b) outside, realize boring cutter (3 d) radial regulation.

3. The boring machine integrating boring, chamfering and countersinking as claimed in claim 2, wherein: the chamfering tool is characterized in that the chamfering tool (3 g) and the countersink tool (3 h) are mounted on the tool rest (3 b) through second mounting frames (3 l), mounting holes extending left and right are formed in the tool rest (3 b) corresponding to the second mounting frames (3 l), the second mounting frames (3 l) are inserted into the mounting holes of the mounting tool, threaded holes (3 i) perpendicular to the mounting holes and communicated with the mounting holes are formed in the tool rest (3 b), and the second mounting frames (3 l) are abutted to the mounting holes through abutting bolts in the threaded holes (3 i) to achieve fixation.

4. The boring machine integrating boring, chamfering and countersinking as claimed in claim 2, wherein: the included angle of the acute angle is 10-20 degrees.

5. The boring machine integrating boring, chamfering and countersinking as claimed in claim 1, wherein: the cooling device is characterized in that a cooling channel (3 j) extending forwards and backwards is arranged in the tool rest (3 b), the rear end of the cooling channel (3 j) extends out of a main shaft of the tool rest (3 b), and a cooling branch channel (3 k) is arranged at the front end of the cooling channel (3 j) corresponding to each boring cutter (3 d).

6. The boring machine integrating boring, chamfering and countersinking as claimed in claim 1, wherein: the boring pushing mechanism (1 b) is a screw nut mechanism, a groove (1 a) extending forwards and backwards is formed in the top of the machine tool body (1), the boring pushing mechanism (1 b) is fixed in the groove (1 a), and a sliding rail (a) for guiding the sliding base (2 a) is arranged on the machine tool body (1) corresponding to the sliding base (2 a).