KR20140007995A - Milling machine - Google Patents

Abstract

A milling machine is disclosed. The milling machine of the present invention comprises: a milling tool assembly which includes a shaft and a milling tool attached to the outer circumference of the shaft; an insertion unit in which the milling tool assembly is inserted; a housing assembly which includes a lower body and an upper body coupled to each other; one or more guide roller assembly with guide rollers which are attached to both sides of the milling tool and are supported by a base metal during processing; a screw assembly which adjusts a cutting depth of the milling tool by allowing the guide roller assembly to move forward or backward by a screw adjustment.

Description

Milling Device {MILLING MACHINE}

The present invention relates to a milling apparatus.

In general, the milling machine is one of the machine tools for cutting a workpiece by rotating a milling cutter installed in a tool chuck, which allows complex cutting such as plane cutting, groove cutting, and cutting, and thus has a wide range of applications. Therefore, it is used also for manufacture of a ship.

Ship manufacturing process consists of receiving the material, processing it, and mounting it on the dock through the process of sojo → jojo → jojo and then performs final assembly.

At this time, in order to mount the block on the dock during the manufacturing process of the ship, a structure called a lug is welded to the mounting object, and the lug is coupled with the hook of the crane by using a hole drilled in the side of the lug. , The mounting object is moved using a crane.

However, after the mounting object is mounted in the dock, the lug may be removed because it is an unnecessary structure.

The lugs of the hull are various sizes and shapes depending on the block, the length is also up to 600mm ~ 1200 mm, the most of such lugs are conventionally cut by leaving about 25 mm using an oxygen cutter. The remainder of the lug was then milled and finally finished with a grinder.

Accordingly, the portable milling equipment is used, but such a portable milling equipment is not suitable as a portable milling equipment for milling the entire surface, such as an improved surface milling and a chamfering machine for processing a part of the target surface.

Korean Patent No. 10-0985830 discloses a compact milling apparatus for removing lug residue. This patent document is compact and lightweight, so it is easy to carry and uses a simple milling means that can be used efficiently when removing the lugs used for block mounting to prevent musculoskeletal disorders of the operator and to prevent the occurrence of lugs by cutting It is also easy to recover and prevents contamination of the surrounding environment while simultaneously increasing work efficiency and productivity. However, it is necessary to easily control the depth of cut in portable milling equipment and satisfy the requirement that the entire surface can be machined.

(Patent Document 1) Korean Registered Patent No. 10-0985830 (announced Jan. 1, 2010)

Embodiment of the present invention is to provide a milling device that is easy to adjust the cutting depth, fine adjustment is possible, and can guide the base material to be a reference during processing.

Milling apparatus according to an aspect of the present invention is a milling tool assembly consisting of a shaft and a milling tool attached to the outer periphery of the shaft: an insert portion into which the milling tool assembly is inserted is formed, and includes an upper body and a lower body coupled to each other; Housing assembly: A pair of guide roller assembly attached to both sides of the milling tool, each having a guide roller supported on the base material during processing: and cutting the milling tool by moving the guide roller assembly forward or backward by screw adjustment It further comprises a screw assembly for adjusting the depth. A mounting block assembly that is fastened to the milling tool assembly inserted into the insert of the housing assembly may further include, and the front and rear of the milling tool assembly in accordance with the rotation of the mounting block assembly Can be moved in a direction.

The guide roller assembly may include a position indicating means indicating a position forward and backward through the opening of the housing assembly.

The position display means may have one end attached to the upper surface of the main body of the guide roller assembly, and the other end may include a position display piece exposed through the opening of the housing assembly, and a ruler displayed below the position display piece.

The guide body for guiding forward and backward of each of the guide roller assemblies may be attached to the lower body of the housing assembly, and the guide block assembly may slide along the guide.

Embodiment of the present invention is easy to adjust the cutting depth, fine adjustment is possible by the eccentric shaft structure, and can guide the base material to be a reference when processing by the guide roller, the entire surface can be processed.

1 is an exploded perspective view showing a milling apparatus according to an embodiment of the present invention,
FIG. 2 is a top perspective view of the coupling diagram of FIG. 1;
3 is a bottom perspective view of the coupling of FIG.
Figure 4 is a perspective view showing the guide roller assembly of Figure 1,
5 is a perspective view showing the screw assembly of FIG.
6 is a perspective view of the guide roller assembly of FIG. 4 and the screw assembly of FIG. 4 combined;
7 is a cross-sectional view taken along line AA of FIG. 2,
8 is a cross-sectional view of the mounting block assembly of FIG. 1,
9 is an operating state diagram finely adjusted by the eccentric structure of the mounting block assembly,
10 is a schematic diagram comparing a cutting surface by a milling apparatus and a conventional machining method according to an embodiment of the present invention,
11 is a flow chart of work performed by the milling apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Figure 1 shows an exploded perspective view showing a milling apparatus according to an embodiment of the present invention, Figures 2 and 3 show the upper and lower perspective views, respectively, as a coupling diagram of FIG. On the other hand, Figure 4 shows a perspective view showing the guide roller assembly of Figure 1, Figure 5 shows a perspective view showing the screw assembly of FIG.

As shown in Figures 1 to 3, the milling apparatus 100 according to an embodiment of the present invention is a milling tool assembly 120, a housing assembly 140, a pair of guide roller assembly 160 and It may include a screw assembly 180.

The milling tool assembly 120 may include a shaft 122 that is vertically mounted and a milling tool 124 attached to the outer periphery of the bottom of the shaft 122. A motor (not shown) is attached to the upper portion of the shaft 122, and as the shaft 122 is rotated by the driving of the motor, the milling tool 124 is rotated so that the entire machining surface of the base material 2 (FIG. 10). Cutting for is performed.

The housing assembly 140 may include an upper body 142 and a lower body 144 forming a hollow housing, and an insert 148 into which the milling tool assembly 120 may be inserted.

The hollow housing assembly 140 to which the upper body 142 and the lower body 144 are coupled has openings 146 formed at both sides thereof. In the center of the upper body 142 and the lower body 144, the insertion portion 148 into which the milling tool assembly 120 is inserted may be formed to form a hollow. Sliding grooves 149 may be formed in the lower main body 144 on both sides of the insertion part 148.

The guide body 150 may be attached to the lower body 144 to guide the forward and backward movement of the guide roller assembly 160.

The milling tool 124 of the milling tool assembly 120 inserted into the insert 148 may protrude to be exposed at the lower body 144.

Referring to Figure 4, each of the guide roller assembly 160 is inserted into the insertion portion 148 of the housing assembly 140, the guide roller 162 supported on the machining surface of the base material 2 to the lower body 144 It is provided to be attached to both sides of the milling tool 124 protruding from, and also the guide groove 166 is coupled to the screw fastening hole 164 and the guide stage 150 may be formed. In addition, the screw coupling hole 168 may be formed on the upper surface to attach the position marking means 300 to be described later.

Referring to Figure 5, the screw assembly 180 serves to adjust the cutting depth. The screw assembly 180 includes a pair of screws 182 having one end screwed into the screwing holes 164 of each of the guide roller assemblies 160, and a screw 182 to rotatably support the screws 182. A combined support 184 and a knob 186 attached to the other end of the screw 182 may be included.

6 illustrates a state in which the screw assembly of FIG. 4 and the guide roller assembly of FIG. 5 are coupled to each other. When the knob 186 is rotated, the guide roller assembly 160 screwed to the screw 182 may be guided to the guide table 150 to move forward and backward. Accordingly, the cutting depth can be adjusted.

Referring back to FIG. 1, on the other hand, the milling apparatus 100 according to an embodiment of the present invention may further include a mounting block assembly 200 capable of finely controlling the cutting depth.

FIG. 7 shows a sectional view taken along the line A-A of FIG. 2, and FIG. 8 shows a sectional view of the mounting block assembly of FIG. 1.

7 and 8, the mounting block assembly 200 is an eccentric shaft housing in which the shaft 122 of the milling tool assembly 120 is eccentrically installed and fitted to the shaft 122 of the milling tool assembly 120. The bearing 212 is attached to the eccentric portion 220 is inserted into the insertion portion 148 of the housing assembly 140, and may include a rotary part 240 formed integrally on the eccentric portion 220. The eccentric portion 220 may be formed thicker than the other side of the thickness of one side.

9 shows an operating state diagram which is finely adjusted by the eccentric structure of the mounting block assembly, and FIG. 10 shows a schematic diagram comparing a conventional machining method with a cutting surface by a milling apparatus according to an embodiment of the present invention.

When the rotating part 240 is rotated by 180 degrees, the eccentric part 220 formed thicker on the one side than the other side is positioned oppositely, so that the milling tool assembly 120 has a predetermined distance in the front-rear direction as shown in FIG. For example, about 1 cm). In this way, by adjusting the rotation angle of the rotating unit 240 during the cutting operation, it is possible to finely move the milling tool assembly 120 in the front and rear direction. Thereby, the cutting depth can be finely adjusted.

In addition, the milling apparatus 100 according to an embodiment of the present invention may further include a position indicating means 300 indicating a position in which the guide roller assembly 160 is moved forward and backward.

1, 3 and 9, the position display means 300 is one end is attached to the upper surface of the main body of the guide roller assembly 160, the other end is a position exposed to the opening 146 of the housing assembly 140 The display piece 320 and a ruler 340 displayed on the lower portion of the position display piece 320 may be included.

In the present embodiment, the ruler 340 may be displayed on the lower body 144 of the housing assembly 140 or may be displayed on the guide stand 150.

According to the milling apparatus according to an embodiment of the present invention configured as described above, as shown in FIG. 10, the entire surface can be cut to process the base material 2 as compared to the conventional processing method such as improvement and chamfering. .

11 shows a flow chart of work performed by a milling apparatus according to an embodiment of the present invention.

As shown in FIG. 11, after adjusting the guide roller assembly 160 by rotating the knob 186 of the screw assembly 180 to adjust the cutting depth, the guide roller 162 of the guide roller assembly 160 is rotated. It contacts with the process surface of the base material 2, and performs an initial cutting operation.

Thereafter, while driving the motor to cut the base material 2, the cutting operation is completed by moving along the machining surface of the base material 2 and cutting the longitudinal direction.

As such, the milling apparatus of the present invention is easy to adjust the cutting depth by the screw assembly, fine adjustment is possible by the eccentric shaft structure, the guide roller can guide the base material to be a reference when machining, the entire surface Can be processed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not explicitly disclosed in the embodiments of the present invention. It is to be understood that the invention is not limited to the disclosed embodiments. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

120 milling tool assembly 122 shaft
124: milling tool 140: housing assembly
142: upper body 144: lower body
146; Opening 148: Insertion
149: sliding groove 150: guide stand
160: guide roller assembly 162: guide roller
164: screw fastening 166: guide groove
168 screw connection hole 180 screw assembly
182: screw 184: support
186: Knob 200: Mounting Block Assembly
212: bearing 220: eccentric part
240: rotating part 300: position display means
320: location indicator 340: ruler

Claims (5)

A milling tool assembly comprising a shaft and a milling tool attached to the shaft periphery;
A housing assembly having an insertion portion into which the milling tool assembly is inserted and including an upper body and a lower body coupled to each other;
At least one guide roller assembly attached to both sides of the milling tool, the guide roller assembly having guide rollers supported by the base material during processing; And
Milling apparatus including a screw assembly for adjusting the cutting depth of the milling tool by moving the guide roller assembly forward or backward by screw adjustment The method of claim 1,
And a mounting block assembly fastened to the milling tool assembly inserted into the insert of the housing assembly.
Milling apparatus for moving the milling tool assembly back and forth in accordance with the rotation of the mounting block assembly. The method of claim 1,
The guide roller assembly is a milling apparatus including a position indicating means for indicating a position forward and backward through the opening of the housing assembly. The method of claim 3,
The position display means is one end is attached to the upper surface of the main body of the guide roller assembly, the other end of the milling apparatus including a position display piece exposed to the opening of the housing assembly, and a ruler displayed on the lower portion of the position display piece. The method of claim 1,
And a guide stand for guiding forward and backward of each of the guide roller assemblies, and the guide block assembly slides along the guide stand.

Images