CN211464954U

CN211464954U - Composite milling cutter for high-speed rail brake pad support machining

Info

Publication number: CN211464954U
Application number: CN201921989348.2U
Authority: CN
Inventors: 廉婧婧
Original assignee: Changzhou Chuangspute Rail Transit Technology Co ltd
Current assignee: Changzhou Chuangspute Rail Transit Technology Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-09-11
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a high-speed railway brake lining holds in palm compound milling cutter of processing usefulness, including handle of a knife and milling cutter body, milling cutter body comprises dovetail milling cutter body and end face milling cutter body, and the dovetail milling cutter body sets up the front end at the end face milling cutter body, dovetail milling cutter body, and end face milling cutter body and handle of a knife are integrative takes shape, and fixed mounting has the rhombus blade on the dovetail milling cutter body, and fixed mounting has the rectangle blade on the end face milling cutter body. The utility model aims at overcoming the defect that prior art exists, provide one kind and can accomplish dovetail and dovetail face milling simultaneously to the convenient high-speed railway brake lining that clears up to the cooling oil duct holds in the palm processing and uses compound milling cutter.

Description

Composite milling cutter for high-speed rail brake pad support machining

Technical Field

The utility model belongs to the technical field of high-speed railway parts machining production and specifically relates to a compound milling cutter of high-speed railway brake lining support processing usefulness.

Background

The brake pad support is a key part in a high-speed rail braking system, the brake pad support is mainly a part formed by casting and then machining, in the manufacturing process, more machining time is spent for machining, and when a dovetail groove and a dovetail groove end face on the brake pad support are machined by machining, two milling cutters are often required to complete milling of the dovetail groove and the dovetail groove end face in two steps, so that the machining time is greatly increased. In addition, the existing milling cutter cooling oil passage is arranged inside the cutter body, the diameter of the oil passage is small, the cleaning is inconvenient, and the problem that the internal cooling oil passage is blocked after the milling cutter cooling oil passage is used for a period of time can be solved. In order to realize the production task with high efficiency and high quality, the composite milling cutter for machining the high-speed rail brake pad support is designed, and can simultaneously complete the milling of a dovetail groove and the end face of the dovetail groove and conveniently clean a cooling oil duct.

Disclosure of Invention

The utility model aims at overcoming the defect that prior art exists, provide one kind and can accomplish dovetail and dovetail face milling simultaneously to the convenient high-speed railway brake lining that clears up to the cooling oil duct holds in the palm processing and uses compound milling cutter.

Realize the utility model discloses the technical scheme of purpose is: a composite milling cutter for machining a high-speed rail brake pad support comprises a cutter handle and a milling cutter body; the milling cutter body consists of a dovetail milling cutter body and an end milling cutter body; the dovetail milling cutter body is arranged at the front end of the end milling cutter body; the dovetail milling cutter body, the end milling cutter body and the cutter handle are integrally formed; the dovetail milling cutter body is fixedly provided with a rhombic blade; and the end milling cutter body is fixedly provided with a rectangular blade.

Further, the central shafts of the cutter handle, the dovetail milling cutter body and the end milling cutter body are provided with cooling oil channels in the upward direction.

Furthermore, a nut groove is formed in the center of the front end face of the dovetail milling cutter body and communicated with the cooling oil channel.

Furthermore, an auxiliary cooling oil channel lower runner is arranged on the dovetail milling cutter body and is semicircular.

Furthermore, a cover plate is complementarily arranged on the lower flow channel of the auxiliary cooling oil channel and the nut groove, so that the communication between the auxiliary cooling oil channel and the cooling oil channel is realized.

Furthermore, the cover plate consists of a middle plate and an upper cover plate of the auxiliary cooling oil channel, and a semicircular flow channel is arranged on the upper cover plate of the auxiliary cooling oil channel; the middle plate is clamped in the nut groove, and the upper cover plate of the auxiliary cooling oil channel is correspondingly clamped on the lower flow channel of the auxiliary cooling oil channel.

Further, the cover plate is locked and fixed in the nut groove through an inner hexagonal nut.

Furthermore, a support table is arranged in the nut groove, and the inner diameter of the intermediate plate is smaller than that of the support table.

Furthermore, a hole is formed in the joint of the upper cover plate of the auxiliary cooling oil channel and the middle plate, and the hole ensures that the cooling oil channel is communicated with the auxiliary cooling oil channel.

After the technical scheme is adopted, the utility model discloses following positive effect has:

(1) the utility model discloses compound milling cutter, it mills in an organic whole to collect high-speed railway brake lining support face milling and dovetail, will need two swoves in the past, mills the machining that the process could just accomplish through the twice, directly optimizes into a sword simultaneous processing cell body and terminal surface, under the condition of guaranteeing the precision, shortens the machining time, reduction in production cost has still improved work efficiency widely, and this utility model discloses simple structure, convenient operation.

(2) The utility model discloses at the in-process that mills, use the coolant oil to cool off, the inside oil circuit of milling cutter blocks up easily after using a period, the utility model discloses a nimble detachable structure, the convenience is to the washing of the inside coolant oil passageway of milling cutter and vice coolant oil passageway, and dismantles and assemble all very simply, repeatedly usable, fine assurance cooling oil circuit unblocked, has improved the cooling effect, has also increased milling cutter's life to a certain extent.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic diagram of the basic structure of the present invention;

FIG. 2 is a top view of the basic structure of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a top view of the structure of the present invention;

FIG. 5 is a schematic view of the structure of the present invention before installation;

fig. 6 is a top view of the cover plate of the present invention;

FIG. 7 is a front view of the cover plate of the present invention;

FIG. 8 is an exploded view of the secondary cooling oil gallery of the present invention;

fig. 9 is a schematic structural view of the hexagon socket nut of the present invention;

the reference numbers in the drawings are as follows: the milling cutter comprises a cutter handle 1, a milling cutter body 2, diamond-shaped blades 21, nut grooves 22, a support platform 221, an end milling cutter body 3, rectangular blades 31, a cooling oil channel 4, an inner hexagonal nut 6, a cover plate 7, an intermediate plate 71, an auxiliary cooling oil channel upper cover plate 72, a semicircular flow channel 721, a hole 73 and an auxiliary cooling oil channel lower flow channel 8.

Detailed Description

(example 1)

Referring to fig. 1 to 2, the utility model comprises a handle 1 and a milling cutter body, wherein the milling cutter body comprises a dovetail milling cutter body 2 and an end milling cutter body 3, and the dovetail milling cutter body 2 is arranged at the front end of the end milling cutter body 3; the dovetail milling cutter body 2, the end milling cutter body 3 and the cutter handle 1 are integrally formed; the dovetail milling cutter body 2 is fixedly provided with diamond-shaped blades 21 through bolts, and the end milling cutter body 3 is fixedly provided with rectangular blades 31 through bolts.

(example 2)

Referring to fig. 3 to 9, the present invention is based on embodiment 1, a cooling oil channel 4 is provided upwards in the central axis of the shank 1, the dovetail milling cutter body 2 and the end milling cutter body 3, and the front end of the cooling oil channel 4 is communicated with a nut groove 22 provided in the central position of the front end face of the dovetail milling cutter body 2; the inner wall of the nut groove 22 is circumferentially provided with threads, and the threads are matched with the outer threads of the inner hexagonal nut 6 (the inner periphery of the inner hexagonal nut 6 is not provided with threads, the outer periphery of the inner hexagonal nut 6 is provided with threads, and the inner hexagonal nut 6 can be communicated or not communicated); an auxiliary cooling oil channel lower flow channel 8 is arranged on the dovetail milling cutter body 2, the auxiliary cooling oil channel lower flow channel 8 is a semicircular flow channel, and the auxiliary cooling oil channel lower flow channel 8 is clamped complementarily through a cover plate 7 to realize that an auxiliary cooling oil channel (wherein the auxiliary cooling oil channel is formed by clamping the auxiliary cooling oil channel lower flow channel 8 and an auxiliary cooling oil channel upper cover plate 72) is communicated with the cooling oil channel 4; the cover plate 7 is composed of an intermediate plate 71 and an upper cover plate 72 of an auxiliary cooling oil channel, a hole 73 is formed in the joint of the upper cover plate 72 of the auxiliary cooling oil channel and the intermediate plate 71, the hole 73 ensures that the cooling oil channel 4 is communicated with the auxiliary cooling oil channel, a semicircular flow channel 721 is arranged on the upper cover plate 72 of the auxiliary cooling oil channel, the semicircular flow channel 721 and an lower flow channel 8 of the auxiliary cooling oil channel which is also semicircular form a cylindrical channel, namely the auxiliary channel through which cooling oil flows, the intermediate plate 71 is clamped in the nut groove 22, the upper cover plate 72 of the auxiliary cooling oil channel is correspondingly clamped on the lower flow channel 8 of the auxiliary cooling oil channel, the cover plate 7 is locked and fixed in the nut groove 22 through an inner hexagon nut 6, a support table 221 is arranged in the nut groove 22, and the inner diameter.

The utility model discloses a theory of operation does: when the cooling oil channel is installed, the cover plate 7 is correspondingly placed on the nut groove 22 and the auxiliary cooling oil channel lower flow channel 8, and then the cover plate 7 is screwed into the nut groove 22 through the inner hexagonal nut 6, so that the cover plate 7 is tightly installed in the corresponding groove. When the dovetail milling cutter is used, the dovetail groove part is machined by the dovetail milling cutter body 2, the outer end face is directly milled by the end face milling cutter body 3, cooling oil enters the cooling oil channel 4 from the rear end of the cutter handle 1 and is then sprayed outwards from the auxiliary cooling oil channel through the hole 73, the auxiliary cooling oil channel is arranged in a gap in front of the dovetail milling cutter, and after the cooling oil is sprayed out, the auxiliary cooling oil channel rotates along with the circumference of the milling cutter to cool the diamond-shaped blade 21; if need wash vice cooling oil passageway and cooling oil passageway 4, can directly pull down milling cutter, screw off hexagon socket nut 6 afterwards, take out apron 7 from nut groove 22, can wash vice cooling oil passageway and cooling oil passageway 4 directly perceivedly conveniently afterwards, it can according to former method reinstallation to wash finishing.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a compound milling cutter of high-speed railway brake lining support processing usefulness which characterized in that: comprises a cutter handle (1) and a milling cutter body; the milling cutter body consists of a dovetail milling cutter body (2) and an end milling cutter body (3); the dovetail milling cutter body (2) is arranged at the front end of the end milling cutter body (3); the dovetail groove milling cutter body (2), the end face milling cutter body (3) and the cutter handle (1) are integrally formed; a rhombic blade (21) is fixedly arranged on the dovetail milling cutter body (2); the end milling cutter body (3) is fixedly provided with a rectangular blade (31).

2. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 1, wherein: and the central shafts of the cutter handle (1), the dovetail milling cutter body (2) and the end milling cutter body (3) are upwards provided with a cooling oil channel (4).

3. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 1, wherein: the center of the front end face of the dovetail milling cutter body (2) is provided with a nut groove (22), and the nut groove (22) is communicated with the cooling oil channel (4).

4. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 1, wherein: and an auxiliary cooling oil channel lower runner (8) is arranged on the dovetail milling cutter body (2), and the auxiliary cooling oil channel lower runner (8) is semicircular.

5. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 4, wherein: and a cover plate (7) is complementarily arranged on the lower flow channel (8) of the auxiliary cooling oil channel and the nut groove (22) to realize the communication of the auxiliary cooling oil channel and the cooling oil channel (4).

6. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 5, wherein: the cover plate (7) consists of a middle plate (71) and an upper cover plate (72) of an auxiliary cooling oil channel, and a semicircular flow channel (721) is arranged on the upper cover plate (72) of the auxiliary cooling oil channel; the middle plate (71) is clamped in the nut groove (22), and the auxiliary cooling oil channel upper cover plate (72) is correspondingly clamped on the auxiliary cooling oil channel lower flow passage (8).

7. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 6, wherein: the cover plate (7) is locked and fixed in the nut groove (22) through an inner hexagonal nut (6).

8. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 3, wherein: a support table (221) is arranged in the nut groove (22), and the inner diameter of the intermediate plate (71) is smaller than that of the support table (221).

9. The compound milling cutter for machining the brake shoe of the high-speed rail according to claim 6, wherein: a hole (73) is formed in the joint of the upper cover plate (72) of the auxiliary cooling oil channel and the middle plate (71), and the hole (73) ensures that the cooling oil channel (4) is communicated with the auxiliary cooling oil channel.