CN214557457U

CN214557457U - Edge milling machine spindle structure convenient for fast replacing cutter head

Info

Publication number: CN214557457U
Application number: CN202120499291.9U
Authority: CN
Inventors: 张学铭; 罗文学; 谢锡来
Original assignee: Shanghai Taole Machinery Co ltd
Current assignee: Shanghai Taole Machinery Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-11-02
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to the technical field of machining equipment, concretely relates to edge milling machine main shaft structure convenient for fast changing a cutter head, which comprises a main shaft assembly and a cutter head assembly which are connected, wherein the main shaft assembly comprises a cutter head fixing screw rod and a hollow main shaft, the inner wall of the main shaft is provided with internal threads, the cutter head fixing screw rod is screwed in the main shaft, the upper end of the cutter head fixing screw rod penetrates out of an upper opening of the main shaft and then is screwed with the cutter head assembly, and the lower end of the cutter head fixing screw rod penetrates out of a lower opening of the main shaft and then is connected with a locking nut; the main shaft assembly is arranged in the shaft seat, the shaft seat is fixed on the mounting plate, the lower end of the main shaft assembly penetrates through the mounting plate, one side of the penetrating end is provided with a fixed pin assembly, and the fixed pin assembly is fixed on the mounting plate; the fixing pin assembly comprises a telescopic fixing pin, and a fixing pin hole is formed in the outer wall of the penetrating end of the main shaft assembly. The utility model discloses application method is simple, compact structure, has promoted machining efficiency when reducing the processing cost of mechanism itself, has practiced thrift the energy again, has further increased the lasting stability and the load-carrying capacity when mechanism uses.

Description

Edge milling machine spindle structure convenient for fast replacing cutter head

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to edge milling machine main shaft structure convenient to quick replacement blade disc.

Background

The edge milling machine is one of common machining equipment, and is used for milling workpieces by driving a cutter disc to rotate at a high speed through a main shaft, is widely applied to various industrial fields such as boiler, pressure vessel manufacturing industry, shipbuilding, electric power, petroleum, chemical machinery, engineering machinery manufacturing and the like, and can be used for processing workpieces such as bevel edges, straight edges, U-shaped grooves and the like of various medium and low carbon steel plates, stainless steel plates and aluminum plates before welding.

The cutter disc of the edge milling machine is arranged on the main shaft, a plurality of blades are arranged on the cutter disc, and the blades rotate around the connection point of the main shaft and the cutter disc at a high speed after the cutter disc is driven to rotate by the rotation of the main shaft, so that the cutting function is realized. Inserts are consumables which wear during milling operations and require regular inspection and replacement. In the structure of the edge milling machine in the prior art, the fixing structure and the assembling process of the cutter head are both complex and inconvenient to disassemble. Therefore, when the cutter head or the blade is replaced and overhauled, the speed of replacing the cutter head or the blade is slow, and certain influence is caused on the production efficiency. In addition, various tools are required in the replacement operation, so that the replacement difficulty is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a milling machine owner axial structure convenient to quick replacement blade disc, solve above technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

the main shaft structure of the edge milling machine comprises a main shaft assembly and a cutter head assembly, wherein the cutter head assembly comprises a cutter head and a blade, the blade is fixed on the cutter head, the cutter head assembly is connected with the main shaft assembly and synchronously rotates along with the main shaft assembly, the main shaft assembly comprises a cutter head fixing screw rod and a main shaft, the main shaft is of a hollow structure, an inner wall of the main shaft is provided with an internal thread corresponding to the cutter head fixing screw rod, the cutter head fixing screw rod is screwed in the main shaft, the upper end of the cutter head fixing screw rod penetrates out of an upper opening of the main shaft and is in threaded connection with the cutter head assembly, and the lower end of the cutter head fixing screw rod penetrates out of a lower opening of the main shaft and is connected with a locking nut;

the spindle assembly is arranged in a spindle seat, the spindle seat is fixed on a mounting plate, the spindle assembly can rotate in the spindle seat, the lower end of the spindle assembly penetrates through the mounting plate, a fixing pin assembly is arranged on one side of the penetrating end, and the fixing pin assembly is fixed on the mounting plate;

the fixed pin subassembly includes a telescopic fixed pin, the outer wall of main shaft assembly's the end of wearing out is equipped with a fixed pinhole, the fixed pin stretches into behind the fixed pinhole, make main shaft assembly is unable after being locked rotates, can make blade disc clamping screw by the main shaft of unscrewing through adjusting lock nut this moment, makes blade disc assembly also by the back-out and break away from blade disc clamping screw at the back-out in-process to accomplish blade disc assembly's dismantlement fast, the change of being convenient for.

The cutter head assembly comprises a cutter head mounting handle, the cutter head is fixedly connected with the cutter head mounting handle, and the cutter head mounting handle is in threaded connection with the cutter head fixing screw rod.

The cutter head mounting handle comprises a handle body and a lower end part, the handle body and the lower end part are both of hollow structures, and the lower end part is of a truncated cone structure;

the lower end of the cutter head mounting handle is inserted into the upper opening of the main shaft, and the inner wall of the upper opening of the main shaft is attached to the outer wall of the lower end of the cutter head mounting handle.

The cutter head mounting handle is characterized in that the upper end face of the cutter head mounting handle is provided with at least one protruding structure, the lower end face of the cutter head is provided with a fixing hole which is convenient to be plugged with the protruding structure, and the effect that the cutter head is fixed on the cutter head mounting handle is achieved after the protruding structure is plugged with the fixing hole.

The main shaft assembly comprises a first shaft sleeve, the fixing pin hole is formed in the first shaft sleeve, and the first shaft sleeve penetrates through the mounting plate from bottom to top and then extends into the lower end opening of the shaft seat;

the main shaft includes main shaft upper portion and main shaft lower part, main shaft upper portion is located in the axle bed, the main shaft lower part be located in the primary shaft cover and with rotate rather than synchronous behind the primary shaft cover fixed connection, be equipped with on the mounting panel the fixed pin, the one end of primary shaft cover is equipped with the fixed pinhole, the fixed pin stretches into make behind the fixed pinhole the primary shaft cover is fixed unable rotatory.

The main shaft is provided with a spline shaft, and the first shaft sleeve is provided with a spline sleeve, so that the first shaft sleeve rotates synchronously along with the main shaft when the main shaft rotates.

And a second shaft sleeve is arranged between the shaft seat and the main shaft, is arranged outside the main shaft and is fixed on the inner wall of the shaft seat, and is internally provided with a bearing which is sleeved on the main shaft and supports the main shaft through the bearing so as to facilitate the rotation of the main shaft.

The outer wall of the penetrating end of the main shaft assembly is provided with at least two fixing pin holes.

All the fixing pin holes are located at the same horizontal height, and the angular displacement between the adjacent fixing pin holes is equal.

The locking nut and the cutter head fixing screw rod are of an integrally formed structure.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses application method is simple, compact structure, has promoted machining efficiency when reducing the processing cost of mechanism itself, has practiced thrift the energy again, has further increased the lasting stability and the load-carrying capacity when mechanism uses.

Drawings

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

FIG. 2 is a schematic view of the inverted structure of FIG. 1;

fig. 3 is a schematic cross-sectional view of fig. 2.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, 2 and 3, a main shaft structure of an edge milling machine convenient for fast changing a cutter head comprises a main shaft assembly 2 and a cutter head assembly 4, wherein the cutter head assembly 4 comprises a cutter head 401 and a blade 403 (the blade mentioned here is also called a cutter head, and is a non-sheet structure), the blade 403 is fixed on the cutter head 401, the cutter head assembly 4 is connected with the main shaft assembly 2 and synchronously rotates along with the main shaft assembly 2, the main shaft assembly 2 comprises a cutter head fixing screw 202 and a main shaft 204, the main shaft 204 is of a hollow structure, an inner wall of the main shaft is provided with an inner thread corresponding to the cutter head fixing screw 202, after the cutter head fixing screw 202 is screwed into the main shaft 204, the upper end of the cutter head fixing screw penetrates through an upper opening of the main shaft 204 and is in threaded connection with the cutter head assembly 4, and the lower end of the cutter head fixing screw penetrates through a lower opening of the main shaft 204 and is connected with a locking nut 205;

the spindle assembly 2 is disposed in the spindle seat 203, the spindle seat 203 is fixed on the mounting plate 3, and the spindle assembly 2 can rotate in the spindle seat 203. The lower end of the main shaft assembly 2 penetrates through the mounting plate 3, a fixing pin assembly 1 is arranged on one side of the penetrating end, and the fixing pin assembly 1 is fixed on the mounting plate 3;

the fixing pin assembly 1 comprises a fixing pin 101, a fixing pin spring 102 and a fixing pin seat 103, the fixing pin spring 102 is sleeved on the fixing pin 101, a ball head 106 is arranged at one end of the fixing pin 101, the spring is convenient to operate while being prevented from being separated, the other end of the fixing pin passes through a hole in the fixing pin seat 103 and then aligns to a penetrating end (namely a first shaft sleeve 201 mentioned below) of the spindle assembly 2 on one side of the fixing pin seat, and the fixing pin seat 103 is fixedly connected with the plate surface of the mounting plate 3. The outer wall of the penetrating end of the spindle assembly 2 is provided with a fixing pin hole 104, and after the fixing pin 101 extends into the fixing pin hole 104, the spindle assembly 2 cannot rotate after being locked, at the moment, the cutter head fixing screw 202 can be screwed out from the spindle 204 by adjusting the locking nut 205, and the cutter head assembly 4 is also screwed out to be separated from the cutter head fixing screw 202 in the screwing-out process, so that the cutter head assembly 4 is rapidly disassembled and conveniently replaced. The fixing pin spring 102 is used for facilitating the fixing pin 101 to be automatically ejected out of the fixing pin hole for resetting.

In some embodiments, the cutterhead assembly 4 includes a cutterhead mounting handle 402, the cutterhead 401 is fixedly connected to the cutterhead mounting handle 402, and the cutterhead mounting handle 402 is in threaded connection with the cutterhead fixing screw 202. The fixed connection between the cutter head and the cutter head mounting handle can be realized by a screw which is screwed in from top to bottom and enables the cutter head and the cutter head mounting handle to be screwed.

In order to facilitate the assembly positioning and further strengthen the fixed connection structure of the cutter head and the cutter head mounting handle, the following arrangement can be made: in some preferred embodiments, the upper end surface of the cutter head mounting handle 402 is provided with at least one protruding structure, the lower end surface of the cutter head 401 is provided with a fixing hole which is convenient for being inserted into the protruding structure, and the protruding structure is inserted into the fixing hole to achieve the effect that the cutter head 401 is fixed on the cutter head mounting handle 402.

In some embodiments, the cutter head mounting shank 402 includes a shank body and a lower end portion, both of which are hollow and of truncated cone configuration;

the lower end part of the cutter disc mounting handle 402 is inserted into the upper opening of the main shaft 204, and the inner wall of the upper opening of the main shaft 204 is attached to the outer wall of the lower end part of the cutter disc mounting handle 402.

It should be noted that the lower end portion is a truncated cone structure, also called a truncated cone structure, which is a cylindrical structure having two parallel circular end surfaces, and the areas of the two circular end surfaces are not equal, so that the side wall of the truncated cone has a certain taper.

In addition, in order to prevent the cutter head mounting handle from slipping along with the rotation of the main shaft and the screw rod, a positioning pin 404 may be arranged at the joint of the cutter head mounting handle and the main shaft, and two positioning pins 404 may be symmetrically arranged on the outer wall of the cutter head mounting handle. The positioning pin hole corresponding to the positioning pin 404 extends from the outer wall of the main shaft to the outer wall of the cutter head mounting handle.

In some embodiments, the spindle assembly 2 includes a first shaft sleeve 201, and the fixing pin hole 104 is disposed on the first shaft sleeve 201, as shown in fig. 2 and 3, the first shaft sleeve 201 passes through the mounting plate 3 from bottom to top and then extends into a lower end opening of the shaft seat 203, where the first shaft sleeve 201 is disposed as an end of the spindle assembly that passes downward through the mounting plate;

the main shaft 204 comprises a main shaft upper part and a main shaft lower part, the main shaft upper part is positioned in the shaft seat 203, and the main shaft lower part is positioned in the first shaft sleeve 201 and rotates synchronously with the first shaft sleeve 201 after being fixedly connected with the first shaft sleeve. The lower surface of mounting panel 3 is equipped with fixed pin 101, and the one end of first axle sleeve 201 is equipped with fixed pinhole 104, makes first axle sleeve 201 fixed unable rotation after fixed pin 101 stretches into fixed pinhole 104, is convenient for adjust the operation to lock nut.

It should be noted that the upper portion of the main shaft is not fixedly connected to the shaft seat 203, and the main shaft 204 can rotate smoothly after the upper portion of the main shaft is supported by the bearing disposed in the shaft seat 203, and the shaft seat 203 is fixed to the mounting plate 3 and thus cannot rotate.

In addition, the mounting plate 3 may be provided with a shaft sleeve hole for the first shaft sleeve 201 to pass through, the first shaft sleeve 201 passes through the shaft sleeve hole from bottom to top and then extends into the lower end opening of the shaft seat 203, and the extending end of the first shaft sleeve 201 can be positioned below the second shaft sleeve under the condition that the second shaft sleeve is provided; as shown in fig. 2, the lower end opening of the shaft holder 203 is covered on the shaft sleeve hole, and the lower end opening of the shaft holder 203 is fixed to the mounting plate 3 by a flange 5. The mounting plate 3 is fixedly connected to a mounting base (not shown), and provides support for the spindle 204 to rotate smoothly. It should be noted that, in order to facilitate the fixing of the upper portion of the shaft seat 203, a flange may be disposed at the upper end opening.

At least two shaft sleeve holes can be formed in the mounting plate 3, so that a plurality of groups of spindle assemblies and cutter head assemblies can be conveniently mounted.

The utility model discloses a realize the fixed connection of main shaft and first axle sleeve, make both can rotate in step, can do following setting: in some embodiments, spindle 204 is provided as a splined shaft and first hub 201 is provided as a splined hub, such that when spindle 204 rotates, first hub 201 rotates synchronously therewith.

In some embodiments, a second shaft sleeve is arranged between the shaft seat and the main shaft, the second shaft sleeve is arranged outside the main shaft and fixed on the inner wall of the shaft seat, a bearing is arranged in the second shaft sleeve, the bearing is sleeved on the main shaft, and the main shaft is supported through the bearing to facilitate rotation of the main shaft. Specifically, the mode that the accessible set up the fixed pin realizes the fixed of second axle sleeve and axle bed, lies in same level and sets up the pinhole on second axle sleeve and axle bed, throws into fixed pin or positioning screw and realizes fixing between them.

In some embodiments, the outer wall of the end of the spindle assembly 2 that passes down out of the mounting plate is provided with at least two fixing pin holes 104. In some preferred embodiments, all of the fixing pin holes 104 are located at the same level, and the angular displacement between adjacent fixing pin holes 104 is equal, i.e., the fixing pin holes 104 are uniformly arranged around the outer wall of the through end of the spindle assembly.

In some embodiments, the lock nut and the cutterhead set screw 202 are integrally formed.

In the mounting, the mounting plate 3 is horizontally placed, and then the main shaft 204 is disposed perpendicular to the plate surface of the mounting plate 3.

To sum up, the utility model realizes the installation and the disassembly of the cutter head by arranging the cutter head installation handle and the cutter head fixing screw rod; through setting up the fixed pin subassembly and realizing being convenient for carry out quick assembly disassembly operation to blade disc set screw after the interim locking of main shaft assembly, make blade disc subassembly can be demolishd rapidly, effectively promoted the operating efficiency.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The edge milling machine spindle structure is characterized in that the spindle assembly comprises a cutter disc fixing screw and a spindle, the spindle is of a hollow structure, an internal thread corresponding to the cutter disc fixing screw is arranged on the inner wall of the spindle, the cutter disc fixing screw is screwed into the spindle, the upper end of the cutter disc fixing screw penetrates out of the upper opening of the spindle and is in threaded connection with the cutter disc assembly, and the lower end of the cutter disc fixing screw penetrates out of the lower opening of the spindle and is connected with a locking nut;

the spindle assembly is arranged in a spindle seat, the spindle seat is fixed on a mounting plate, the lower end of the spindle assembly penetrates through the mounting plate, a fixing pin assembly is arranged on one side of the penetrating end, and the fixing pin assembly is fixed on the mounting plate;

the fixing pin assembly comprises a telescopic fixing pin, and a fixing pin hole convenient for the fixing pin to extend into is formed in the outer wall of the penetrating end of the main shaft assembly.

2. The edge milling machine spindle structure convenient for fast changing the cutter head of claim 1, wherein the cutter head assembly comprises a cutter head mounting handle, the cutter head is fixedly connected with the cutter head mounting handle, and the cutter head mounting handle is in threaded connection with the cutter head fixing screw.

3. The edge milling machine spindle structure convenient for fast changing the cutter head as claimed in claim 1, wherein the cutter head mounting handle comprises a handle body and a lower end part, the handle body and the lower end part are both of a hollow structure, and the lower end part is of a cone frustum structure;

4. The edge milling machine spindle structure convenient for fast changing the cutter head as claimed in claim 3, wherein the upper end surface of the cutter head mounting handle is provided with at least one protruding structure, and the lower end surface of the cutter head is provided with a fixing hole convenient for being plugged with the protruding structure.

5. The edge milling machine spindle structure convenient for fast changing the cutter disc as claimed in claim 1, wherein the spindle assembly comprises a first shaft sleeve, the fixing pin hole is formed in the first shaft sleeve, and the first shaft sleeve penetrates through the mounting plate from bottom to top and then extends into a lower end opening of the shaft seat;

the main shaft comprises a main shaft upper portion and a main shaft lower portion, the main shaft upper portion is located in the shaft seat, the main shaft lower portion is located in the first shaft sleeve and rotates synchronously with the first shaft sleeve after being fixedly connected with the first shaft sleeve, the fixing pin is arranged on the mounting plate, and the fixing pin hole is formed in one end of the first shaft sleeve.

6. The edge milling machine spindle structure convenient for fast changing the cutter head of claim 5, wherein the spindle is provided with a spline shaft, and the first sleeve is provided with a spline sleeve.

7. The edge milling machine spindle structure convenient for fast changing the cutter head of claim 5, wherein a second spindle sleeve is arranged between the spindle seat and the spindle, the second spindle sleeve is arranged outside the spindle and fixed on the inner wall of the spindle seat, a bearing is arranged in the second spindle sleeve, and the bearing sleeve is arranged on the spindle.

8. A main shaft structure of an edge milling machine convenient for fast changing a cutter head according to any one of claims 1 to 7, wherein the outer wall of the penetrating end of the main shaft assembly is provided with at least two fixing pin holes.

9. The edge milling machine spindle structure facilitating quick cutter head replacement of claim 8, wherein all of the fixing pin holes are located at the same level, and angular displacements between adjacent fixing pin holes are equal.

10. The edge milling machine spindle structure convenient for rapid cutter disc replacement according to any one of claims 1 to 7, wherein the lock nut and the cutter disc fixing screw are of an integrally formed structure.