CN216864763U - Gasket and milling cutter structure - Google Patents

Abstract

A gasket and a milling cutter structure are provided, the gasket is arranged on a milling cutter seat and used for a milling cutter to lean against, and the gasket comprises a body, a milling cutter face, a cutter seat face, a through hole, an extending part, a first groove and a second groove. The milling knife face is located on a first side of the body. The tool seat surface is positioned on a second side of the body. The through hole penetrates through the body and is used for a blade body of the milling cutter to penetrate through, and the through hole has an axial direction. The extending part is positioned on the tool seat surface, protrudes from the body towards the second side and surrounds the through hole, and the radial thickness of the extending part is gradually reduced towards the second side along the axial direction. The first groove is positioned on the tool seat surface. The second groove is positioned between the first groove and the extension part, and an annular bulge is formed between the second groove and the first groove. Therefore, the stability of the gasket in use can be improved.

Description

Gasket and milling cutter structure

Technical Field

The present invention relates to a shim and a milling cutter structure, and more particularly, to a shim and a milling cutter structure for milling a road surface.

Background

In order to meet the needs of the modern society for road surface finishing, manufacturers of milling tools have a gasket disposed between the milling cutter and the milling cutter seat in the known milling cutter structure to buffer the impact of the milling cutter on the milling cutter seat during the milling operation, thereby prolonging the service lives of the milling cutter and the milling cutter seat. However, the known shim is often unable to stably abut against the milling cutter and the milling cutter seat due to the impact force during the milling operation, and thus the buffering effect is limited.

In view of the above, a gasket capable of improving the stability of use is still the object of the common efforts of the related industries.

SUMMERY OF THE UTILITY MODEL

The present invention provides a spacer and a milling cutter structure, which can increase the friction between the spacer and the milling cutter holder by the arrangement of a first groove and a second groove on the surface of the milling cutter holder, thereby improving the stability of the spacer.

According to an embodiment of the present invention, a shim is disposed on a milling cutter holder for supporting a milling cutter, and includes a body, a milling cutter face, a seat face, a through hole, an extending portion, a first groove, and a second groove. The milling cutter face is located on a first side of the body. The tool seat surface is positioned on a second side of the body. The through hole penetrates through the body and is used for a cutter body of the milling cutter to penetrate through, and the through hole has an axial direction. The extending part is positioned on the tool seat surface, protrudes from the body towards the second side and surrounds the through hole, and the radial thickness of the extending part is gradually reduced towards the second side along the axial direction. The first groove is positioned on the tool seat surface. The second groove is positioned between the first groove and the extension part, and an annular bulge is formed between the second groove and the first groove.

The raised surface formed by the first groove and the second groove increases the surface area of the tool seat surface in contact with the milling tool holder, so as to improve the friction force between the tool seat surface and the milling tool holder and prevent the gasket from falling off. Thereby, the stability of the gasket in use can be increased.

The gasket according to the embodiment described in the preceding paragraph, wherein the depth of the first groove in the axial direction may be less than or equal to the depth of the second groove in the axial direction.

The gasket according to the embodiment of the preceding paragraph, wherein the body may include a plurality of radial protrusions and a plurality of radial recesses, and the radial recesses and the radial protrusions are staggered.

The gasket according to the embodiment described in the previous paragraph may further comprise a plurality of notches. Each notch is arranged in each radial concave part and is positioned on the milling cutter face.

The gasket according to the embodiment of the previous paragraph, wherein the through hole and the milling cutter face form a first opening, and the through hole and the insert seat face form a second opening. The inner diameter of the first opening is larger than the inner diameter of the second opening.

According to another embodiment of the present invention, a milling cutter structure is provided, which includes a milling cutter, a milling cutter seat and a shim. The milling and planing tool comprises a tool bit and a tool body. The milling cutter seat is used for installing a milling cutter. The gasket is arranged on the milling cutter seat and used for bearing the milling cutter. The shim comprises a body, a milling cutter face, a cutter seat face, a through hole, an extending part, a first groove and a second groove. The milling cutter face is located on a first side of the body. The tool seat surface is positioned on a second side of the body. The through hole penetrates through the body and is used for the tool body of the milling tool to penetrate through, and the through hole has an axial direction. The extending part is positioned on the tool seat surface, protrudes from the body towards the second side and surrounds the through hole, and the radial thickness of the extending part is gradually reduced towards the second side along the axial direction. The first groove is located on the tool seat surface. The second groove is positioned between the first groove and the extension part, and an annular bulge is formed between the second groove and the first groove.

Therefore, through the surface of the gasket with the height of the tool seat surface fluctuating, the friction force between the gasket and the milling tool holder can be increased, the gasket is prevented from falling off, and the use stability of the gasket is further improved.

The milling cutter structure according to the embodiment described in the preceding paragraph, wherein the depth of the first groove in the axial direction may be less than or equal to the depth of the second groove in the axial direction.

The milling cutter structure according to the embodiment of the preceding paragraph, wherein the body of the shim may include a plurality of radial protrusions and a plurality of radial recesses, and the radial recesses and the radial protrusions are staggered.

The milling cutter structure according to the embodiment of the preceding paragraph, wherein the shim may further comprise a plurality of notches. Each notch is arranged in each radial concave part and is positioned on the milling cutter face.

The milling cutter structure according to the embodiment of the present invention, wherein the through hole and the milling cutter face form a first opening, and the through hole and the cutter seat face form a second opening. The inner diameter of the first opening is larger than the inner diameter of the second opening.

Drawings

FIG. 1 is a perspective view of a gasket according to a first embodiment of the present invention;

FIG. 2 is a schematic top view of the gasket according to the first embodiment of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the gasket taken along line 3-3 of FIG. 2;

FIG. 4 is a perspective view of a gasket according to a second embodiment of the utility model;

FIG. 5 is a schematic top view of the gasket according to the second embodiment of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the gasket taken along line 6-6 of FIG. 5 in accordance with the second embodiment; and

fig. 7 is a schematic view illustrating a milling cutter structure according to a third embodiment of the present invention.

[ notation ] to show

10-milling cutter structure

100,200,500 gaskets

110,210: body

111: notch

120,220 milling and planing tool face

130,230 tool seating surface

140,240 perforation

150,250: extension part

160,260 first groove

161,261 annular projection

170,270 second groove

211 radial projection

212 radial recess

300 milling and planing tool

400 milling tool apron

d1, d2 depth

W1, W2 inner diameter

X is axial direction

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. For the purpose of clarity, numerous implementation details are set forth in the following description. However, the reader should understand that these implementation details should not be used to limit the utility model. That is, in some embodiments of the utility model, these implementation details are not necessary. In addition, for the sake of simplicity, some conventional structures and elements are shown in the drawings in a simple schematic manner; and repeated elements will likely be referred to using the same reference number or similar reference numbers.

Furthermore, the terms first, second, third, etc. herein are used only to describe various elements or components, and there is no limitation on the elements/components themselves, so that a first element/component may be referred to as a second element/component instead. And the combination of elements/components/mechanisms/modules herein is not a commonly known, conventional or known combination in the art, and cannot be readily determined by one of ordinary skill in the art based on whether the elements/components/mechanisms/modules are known per se.

Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic perspective view of a gasket 100 according to a first embodiment of the utility model, fig. 2 is a schematic top view of the gasket 100 according to the first embodiment of fig. 1, and fig. 3 is a schematic cross-sectional view of the gasket 100 according to the first embodiment of fig. 2 along a sectional line 3-3. As shown in fig. 1 to 3, the shim 100 is disposed on a milling cutter seat (not shown in the first embodiment) and is used for supporting a milling cutter (not shown in the first embodiment). The shim 100 includes a body 110, a milling face 120, a seating face 130, a through hole 140, an extension 150, a first recess 160, and a second recess 170. The milling face 120 is located on a first side of the body 110, and the cutting face 130 is located on a second side of the body 110. The through hole 140 penetrates through the body 110 and is used for a blade of the milling cutter to penetrate through. The through hole 140 has an axial direction X. The extension portion 150 is located on the seat surface 130 and protrudes from the body 110 toward the second side and surrounds the through hole 140, and a radial thickness of the extension portion 150 is tapered toward the second side along the axial direction X. The first groove 160 is located at the insert seat surface 130. The second groove 170 is located between the first groove 160 and the extension portion 150, and an annular protrusion 161 is formed between the second groove 170 and the first groove 160.

When the shim 100 is assembled with the milling insert seat, the extension portion 150 may be installed into the milling insert seat along a tapered direction, and the annular protrusion 161 formed by the first groove 160 and the second groove 170 increases the surface area of the insert seat surface 130 contacting the milling insert seat to increase the friction force, thereby preventing the shim 100 from falling off the milling insert seat due to external force during the milling process. Thereby, stability of use of the gasket 100 can be increased. Details of the gasket 100 will be described later.

In the first embodiment, the shim 100 may further include a plurality of notches 111 located on the milling face 120 and arranged around the axial direction X. When the user wants to replace the milling blade, the recess 111 is configured to facilitate the user to remove the milling blade from the milling blade seat through the tool.

As shown in fig. 3, the through hole 140 and the milling cutter face 120 may form a first opening, the through hole 140 and the cutter seat face 130 may form a second opening, and the inner diameter W1 of the first opening is larger than the inner diameter W2 of the second opening. Therefore, when the blade of the milling and planing tool penetrates through the through hole 140, the inner diameter W1 of the first opening facilitates the blade of the milling and planing tool to penetrate through the first opening, so that the assembling margin of the milling and planing tool mounted on the gasket 100 and the milling and planing tool holder is increased, and the smoothness of assembling the milling and planing tool is improved.

Furthermore, the depth d1 of the first groove 160 in the axial direction X is equal to the depth d2 of the second groove 170 in the axial direction X. Therefore, when the milling cutter performs milling operation, the height fluctuation formed by the first groove 160 and the second groove 170 on the seat surface 130 can disperse the impact force.

Referring to fig. 4, 5 and 6, fig. 4 is a perspective view of a gasket 200 according to a second embodiment of the utility model, fig. 5 is a top view of the gasket 200 according to the second embodiment of fig. 4, and fig. 6 is a cross-sectional view of the gasket 200 according to the second embodiment of fig. 5 along a sectional line 6-6. The insert 200 includes a body 210, a milling face 220, a seating face 230, a through hole 240, an extension 250, a first recess 260, and a second recess 270. In the second embodiment, the configuration and structure of the gasket 200 are similar to those of the gasket 100 of the first embodiment, and are not repeated herein. Specifically, in the second embodiment, the body 210 may include a plurality of radial protrusions 211 and a plurality of radial recesses 212, and the radial recesses 212 are staggered with the radial protrusions 211. As shown in fig. 5, the radial recesses 212 and the radial protrusions 211 form a wave on the outer edge of the body 210, so that the gasket 200 has a quincuncial shape as a whole. In other embodiments, the gasket may further comprise a plurality of notches. Each notch is disposed in each radial recess and located on the milling cutter face, which is not limited by the present invention.

As shown in fig. 6, the inner diameter W1 of the first opening formed by the through hole 240 and the milling face 220 may be greater than the inner diameter W2 of the second opening formed by the through hole 240 and the seating face 230. Further, the depth d1 of the first groove 260 in the axial direction X is smaller than the depth d2 of the second groove 270 in the axial direction X. The first recess 260, the second recess 270 and the annular protrusion 261 form different-depth undulating surfaces on the seat surface 230, so that the seat surface 230 can bear radial shearing force, thereby preventing the shim 200 from falling off the milling seat.

Fig. 7 is a schematic view of a milling cutter structure 10 according to a third embodiment of the utility model. The milling cutter structure 10 includes a milling cutter 300, a milling cutter holder 400 and a shim 500. The milling and planing tool 300 includes a tool head and a tool body. The milling cutter holder 400 is used to mount the milling cutter 300. Shim 500 is disposed on milling insert seat 400 and is used for supporting milling insert 300. Shim 500 may be a shim 100 as in the first embodiment. Thereby, the friction between the lifting pad 500 and the milling cutter holder 400 is utilized to further improve the stability of the milling cutter structure 10 during the milling operation.

In summary, the present invention has the following advantages: firstly, the friction force between the gasket and the milling cutter seat can be increased through the arrangement of the first groove and the second groove; secondly, through the configuration of the extension part, the assembly fluency of the gasket and the milling cutter seat can be further improved; and thirdly, the tool apron surface can bear radial shearing force through the height fluctuation formed on the tool apron surface by the grooves with different depths.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (10)

1. A shim for a milling cutter holder for a milling cutter to rest on, the shim comprising:

a body;

a milling face located on a first side of the body;

a seat surface located on a second side of the body;

a through hole penetrating through the body and used for a cutter body of the milling cutter to penetrate, wherein the through hole has an axial direction;

an extension part which is positioned on the tool apron surface, protrudes from the body towards the second side and surrounds the through hole, and the radial thickness of the extension part is gradually reduced towards the second side along the axial direction;

a first groove located on the tool apron surface; and

a second groove located between the first groove and the extending part, and an annular bulge is formed between the second groove and the first groove.

2. The gasket of claim 1 wherein the depth of the first groove in the axial direction is less than or equal to the depth of the second groove in the axial direction.

3. The gasket of claim 1 wherein the body comprises a plurality of radial protrusions and a plurality of radial recesses, and wherein the plurality of radial recesses are staggered from the plurality of radial protrusions.

4. The gasket of claim 3, further comprising:

and each notch is arranged in each radial concave part and is positioned on the milling cutter face.

5. The shim of claim 1, wherein the bore and the milling face form a first opening, the bore and the seating face form a second opening, and the first opening has an inner diameter greater than the inner diameter of the second opening.

6. A milling cutter structure, comprising:

a milling planer tool, which comprises a tool bit and a tool body;

a milling cutter seat for mounting the milling cutter; and

a shim disposed on the milling cutter holder and used for the milling cutter to lean against, the shim comprising:

a body;

a milling tool face positioned on a first side of the body;

a tool seat surface positioned on a second side of the body;

a through hole penetrating through the body and used for the cutter body of the milling and planing cutter to penetrate through, wherein the through hole has an axial direction;

an extension part which is positioned on the tool apron surface, protrudes from the body towards the second side and surrounds the through hole, and the radial thickness of the extension part is gradually reduced towards the second side along the axial direction;

a first groove located on the tool apron surface; and

a second groove located between the first groove and the extending part, and an annular bulge is formed between the second groove and the first groove.

7. The milling cutter structure of claim 6, wherein the depth of the first groove in the axial direction is less than or equal to the depth of the second groove in the axial direction.

8. The milling cutter structure of claim 6, wherein the body of the shim includes a plurality of radial protrusions and a plurality of radial recesses, and the plurality of radial recesses are staggered from the plurality of radial protrusions.

9. The milling cutter structure of claim 8, wherein the shim further comprises:

and each notch is arranged in each radial concave part and is positioned on the milling cutter face.

10. The milling cutter structure of claim 6 wherein the bore and the milling cutter face define a first opening, the bore and the cutting surface define a second opening, the first opening having an inner diameter greater than the inner diameter of the second opening.

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