CN108176885B

CN108176885B - Polygon milling device

Info

Publication number: CN108176885B
Application number: CN201711341149.6A
Authority: CN
Inventors: 李金良
Original assignee: Langkuai Intelligent Technology Hangzhou Co ltd
Current assignee: Langkuai Intelligent Technology Hangzhou Co ltd
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2021-04-09
Anticipated expiration: 2037-12-14
Also published as: CN108176885A

Abstract

The invention discloses a polygonal milling device, which comprises a cylindrical shell, a rotating base, a first rotating shaft, a second rotating shaft and two cutters, wherein the rotating base is rotatably arranged in the shell and is coaxial with the shell, the first rotating shaft and the second rotating shaft are rotatably arranged on the rotating base, the two cutters are respectively arranged at one ends, far away from the rotating base, of the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft are parallel to the central axis of the rotating base and are axially symmetrical relative to the central axis, be provided with the internal gear coaxial with the shell on the shell inner wall, all be provided with the gear with internal gear meshing in first pivot and second pivot, every the cutter is including being used for installing body in first pivot and second pivot and for a plurality of blades of the radial extension of the central axis, every the cutting edge of blade extends along the direction that is on a parallel with the central axis, and a plurality of blades on every cutter distribute on same circumference uniformly. The device can mill the polygon with high efficiency.

Description

Polygon milling device

Technical Field

The invention relates to the field of processing of valve bodies such as valve cores, in particular to a polygonal milling device for the surfaces of the valve bodies such as the valve cores.

Background

In the processing of valve bodies such as valve cores, a certain section of circumferential surface needs to be processed into a polygon, particularly a hexagon, so as to form a structure matched with a wrench or meet other requirements. In the prior art, a single cutter is mostly adopted for processing polygons to process the surfaces of the polygons one by one, and when each surface is processed, the surface needs to be repositioned, so that errors are easily increased, and the efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a polygon milling device, which can continuously process the surface of a polygon without positioning every time when the polygon is processed, thereby improving the processing precision on one hand and improving the production efficiency on the other hand.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a polygonal milling device comprises a cylindrical shell, a rotating base which is rotatably arranged in the shell and is coaxial with the shell, a first rotating shaft and a second rotating shaft which are rotatably arranged on the rotating base, and two cutters which are respectively arranged at one ends of the first rotating shaft and the second rotating shaft, which are far away from the rotating base, wherein the first rotating shaft and the second rotating shaft are parallel to the central axis of the rotating base and are mutually symmetrical relative to the central axis, be provided with the internal gear coaxial with the shell on the shell inner wall, all be provided with the gear with internal gear meshing in first pivot and second pivot, every the cutter is including being used for installing body in first pivot and second pivot and for a plurality of blades of the radial extension of the central axis, every the cutting edge of blade extends along the direction that is on a parallel with the central axis, and a plurality of blades on every cutter distribute on same circumference uniformly.

Preferably, the two gears on the first and second shafts are offset from each other in a direction parallel to the central axis.

Preferably, the first rotating shaft and the second rotating shaft are both arranged on the rotating base through two first bearings which are coaxially arranged.

Preferably, one side that carries on the back mutually with rotating base for two gears is provided with the coaxial stabilizer ring of central axis and solid fixed ring, be provided with the two through-holes that supply first pivot and second pivot to pass on the stabilizer ring respectively, gu fixed ring and shell threaded connection, the stabilizer ring partially sets up between the terminal surface of solid fixed ring and shell in the footpath.

Preferably, the first rotating shaft and the second rotating shaft are matched with the stabilizing ring through two coaxially arranged second bearings.

Preferably, the lower end of the outer ring of the second bearing abuts against the stabilizing ring, the lower end of the inner ring abuts against a corresponding shaft shoulder of the first rotating shaft or the second rotating shaft, the upper end of the outer ring abuts against a first fixing nut in threaded connection with the through hole, and the upper end of the inner ring abuts against a second fixing nut in threaded connection with the first rotating shaft or the second rotating shaft.

Compared with the prior art, the invention has the following beneficial effects:

the polygonal milling device can continuously mill until a preset milling effect is achieved, repositioning is not needed in the milling process, the machining precision is guaranteed, and meanwhile the machining efficiency is improved.

Drawings

FIGS. 1 and 2 are perspective views of a preferred embodiment according to the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment according to the present invention;

FIG. 4 is a block diagram of a housing in accordance with a preferred embodiment of the present invention;

FIG. 5 is a block diagram of a first shaft in accordance with a preferred embodiment of the present invention;

FIG. 6 is a block diagram of a swivel base in accordance with a preferred embodiment of the present invention;

fig. 7 is a block diagram of a tool mounting according to a preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 to 7, a polygonal milling device includes a cylindrical housing 1, a cylindrical rotating base 2 coaxially disposed in the housing 1, a first rotating shaft 7 and a second rotating shaft 8 rotatably fixed on the rotating base 2, and two cutters 9 respectively fixed on the first rotating shaft 7 and the second rotating shaft 8 at one end far away from the rotating base 2. The housing 1 and the rotating base 2 can rotate relatively, and specifically, the housing 1 and the rotating base 2 are connected through two bearings 12 to reduce friction generated by relative sliding.

Two-shaft receiving grooves 21 for receiving the first and second rotating

shafts

7 and 8 are provided on the rotating base 2, and the axes of the two shaft receiving grooves 21 are parallel to the axis of the rotating base 2 and are symmetrical to each other with respect to the axis of the rotating base 2. The ends of the first and

second shafts

7, 8 remote from the tool 9 are inserted into the corresponding shaft receiving slots 21. Specifically, one end of the first rotating shaft 7 inserted into the corresponding shaft receiving groove 21 is engaged with the side wall of the corresponding shaft receiving groove 21 through the two bearings 72, one end of the second rotating shaft 8 inserted into the corresponding shaft receiving groove 21 is engaged with the side wall of the corresponding shaft receiving groove 21 through the two bearings 82, friction between the first rotating shaft 7 and the second rotating shaft 8 and the rotating base 2 can be reduced through the

bearings

72 and 82 on the one hand, and shaking of the first rotating shaft 7 and the second rotating shaft 8 can be reduced on the other hand.

A first gear 71 and a second gear 81 are coaxially provided on the first rotating shaft 7 and the second rotating shaft 8, respectively, and the first gear 71 and the second gear 81 are axially offset from each other when the first rotating shaft 7 and the second rotating shaft 8 are inserted into the corresponding shaft receiving grooves 21. An internal gear 11 engaged with the first gear 71 and the second gear 81 is disposed on the inner sidewall of the housing 1, so that when the rotating base 2 drives the first rotating shaft 7 and the second rotating shaft 8 to revolve around the axis of the rotating base 2, due to the engagement of the internal gear 11 with the first gear 71 and the second gear 81, the first rotating shaft 7 and the second rotating shaft 8 rotate around their respective axes, and thus polygonal milling can be achieved. Specifically, the first gear 71 is integrally formed with the first rotating shaft 7, the second gear 81 is integrally formed with the second rotating shaft 8, the internal gear 11 is integrally formed with the housing 1, and the width of the internal gear 11 should be such that the first gear 71 and the second gear 81 can still mesh with the internal gear 11 when they are staggered.

In order to ensure further stability of the first rotating shaft 7 and the second rotating shaft 8, a stabilizing ring 3 which can rotate relative to the shell 1 is sleeved on the first rotating shaft 7 and the second rotating shaft 8 together on the opposite sides relative to the first gear 71 and the second gear 81, through holes for the first rotating shaft 7 and the second rotating shaft 8 to penetrate through are respectively arranged on the stabilizing ring 3, and one ends of the first rotating shaft 7 and the second rotating shaft 8, which are provided with cutters 9, penetrate through the through holes of the stabilizing ring 3. The first rotating shaft 7 is matched with the stabilizing ring 3 through two bearings 73, and the second rotating shaft 8 is matched with the stabilizing ring 3 through two bearings 83. Stabilizer ring 3 presses on the terminal surface of the corresponding side of shell 1 through solid fixed ring 4, gu fixed ring 4 and shell 1 threaded connection, can adjust the distance between the terminal surface of the corresponding side of solid fixed ring 4 and shell 1 in order to guarantee that stabilizer ring 3 can normal rotation, also can not take place great rocking.

To facilitate the mounting of the

bearings

73 and 83, one end of the inner side of the stabilizer ring 3 is provided with an abutting ring for abutting against the inner end of the outer race of the

bearings

73 and 83, and the inner ends of the inner race of the

bearings

73 and 83 abut against the shoulders of the first and second rotating

shafts

7 and 8. The outer ends of the outer rings of the

bearings

73 and 83 are abutted against a first fixing nut, and the first fixing nut is in threaded fit with the side wall of the through hole of the stabilizing ring 3 so as to realize abutting against of the outer ends of the outer rings of the

bearings

73 and 83. The inner ends of the outer races of the plurality of

bearings

73 and 83 abut on second fixing nuts which are screw-fitted with the first and second rotating

shafts

7 and 8, respectively.

At the end of the housing 1 remote from the tool 9, a fixing flange 5 is provided, by means of which fixing flange 5 the housing 1 is fixed to a structure that is not rotatable relative to the housing 1. One end of the rotating base 2, which is far away from the cutter 9, is connected with a rotating flange 6, and the rotating flange 6 is used for being connected with a transmission device such as a rotatable rotating shaft and the like so as to drive the revolution and the rotation of the cutter 9.

The tool 9 includes an annular body 91 mounted on the first rotating shaft 7 or the second rotating shaft 8, and a plurality of blades 92 uniformly arranged on the circumferential surface of the body 91, and a cutting edge is arranged on an end surface of each blade 92 away from the body 91, and the cutting edge extends along the axial direction of the rotating base 2 so as to machine the side surface of the workpiece. As shown, each tool 9 has three blades 92, which enables a hexagonal shape to be machined, and when each tool 9 has two blades 92, a quadrangular shape to be machined.

When the machining tool is used, workpieces such as a valve core to be machined are moved between the two cutters 9 along the axis of the rotating base 2, the transmission device drives the rotating base 2 to rotate so as to drive the two cutters 9 to rotate around the axis of the rotating base 2 and rotate around the axis of the rotating base, and a needed polygon can be machined after milling for a period of time.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polygonal milling device is characterized by comprising a cylindrical shell, a rotating base which is rotatably arranged in the shell and is coaxially arranged with the shell, a first rotating shaft and a second rotating shaft which are rotatably arranged on the rotating base, and two cutters which are respectively arranged at one ends, far away from the rotating base, of the first rotating shaft and the second rotating shaft, wherein the first rotating shaft and the second rotating shaft are parallel to the central axis of the rotating base and are mutually symmetrical relative to the central axis, an internal gear which is coaxial with the shell is arranged on the inner wall of the shell, gears which are meshed with the internal gear are arranged on the first rotating shaft and the second rotating shaft, each cutter comprises a body and a plurality of blades, the body is used for being arranged on the first rotating shaft or the second rotating shaft, the blades are uniformly arranged on the peripheral surface of the body, the cutting edge of each blade extends along the direction parallel to the central axis, and the blades on each cutter are uniformly distributed on the same circumference, the two gears on the first rotating shaft and the second rotating shaft are mutually staggered along the direction parallel to the central axis; a stabilizing ring and a fixing ring which are coaxial with the central axis are arranged on one side opposite to the rotating base relative to the two gears, two through holes for the first rotating shaft and the second rotating shaft to pass through are respectively arranged on the stabilizing ring, the fixing ring is in threaded connection with the shell, the stabilizing ring is partially arranged between the fixing ring and the end surface of the shell in the radial direction, a rotating flange connected with an external transmission device is arranged at one end of the rotating base, and the rotating flange is directly fixed on the rotating base; the rotary base is provided with two shaft receiving grooves for receiving the first rotating shaft and the second rotating shaft, and the axes of the two shaft receiving grooves are parallel to the central axis of the rotary base and are symmetrical relative to the central axis of the rotary base;

the first rotating shaft and the second rotating shaft are both arranged on the rotating base through two first bearings which are coaxially arranged;

the first rotating shaft and the second rotating shaft are matched with the stabilizing ring through two coaxially arranged second bearings;

the inner end of the outer ring of the second bearing is abutted against the stabilizing ring, the inner end of the inner ring is abutted against the corresponding shaft shoulder of the first rotating shaft or the second rotating shaft, the outer end of the outer ring is abutted against the first fixing nut in threaded connection with the through hole, and the inner end of the outer ring is abutted against the second fixing nut in threaded connection with the first rotating shaft or the second rotating shaft.