KR20080000476U - Portable milling machine - Google Patents

Abstract

The present invention relates to a portable milling machine, which allows a worker to easily carry it with his own power, and in particular, to grind a part of an outer circumferential surface having a curved surface into a flat surface, such as various metal rods.

Portable milling machine of the present invention, the horizontal screw 14 is coupled, a pair of support 12 is provided on both sides of the bottom surface, the base 11 to be placed on the surface of the workpiece; A fixing member 13 coupled to one side of the pedestal 11; A horizontal carriage 15, which is upright on an upper surface of the pedestal 11 while being screwed to the horizontal screw 14, and having a vertical screw 16; A vertical carriage 17 screwed to the vertical screw 16; A drive motor 18 coupled to the back of the vertical carriage 17; A rotary cutter 19 coupled to the front surface of the vertical carriage 17; And a power transmission member 20 for connecting the drive motor 18 and the rotary cutter 19 to each other.

The portable milling machine of the present invention has an advantage that the milling operation can be easily and conveniently regardless of the place.

Milling Machines, Screws, Reciprocating

Description

Portable milling machine

1 is a perspective view of an embodiment of the present invention portable milling machine.

Figure 2 is a front view of an embodiment of the present invention portable milling machine.

Figure 3 is a side view of an embodiment of the present invention portable milling machine.

Figure 4 is a plan view of an embodiment of the present invention portable milling machine.

Figure 5 is a bottom view of an embodiment of the present invention portable milling machine.

Figure 6 is a bottom view of another embodiment of the present invention portable milling machine.

           ((Explanation of symbols for main parts of drawing))

     11. Pedestals 11A. Base plate 11B. Support frame

     12. Support 13. Fixing member 14. Horizontal screw

     15. Horizontal carriage 16. Vertical screw 17. Vertical carriage

     18. Drive motor 19. Rotary cutter 20. Power transmission member

     H. Horizontal Through H '. Vertical through hole h. handle

     M. Workpiece

The present invention not only enables the hardness to be measured for quality inspection of heavy metal rods, but also allows the operator to easily attach a name plate or the like with a record of the manufacturing history or engrav the lot number. It is related with the portable milling machine which carried around one side of outer peripheral surfaces, such as various metal bars, with a flat surface while carrying.

Various metal rods, such as alloy steel and carbon steel, should be measured for quality inspection after completion of manufacture, and hardness should be measured on a flat surface to obtain accurate values.

That is, when hardness is measured on the outer circumferential surface of the curved metal rod, it is difficult to vertically press the metal or diamond of the hardness tester with respect to the measurement target surface, and when the hardness cannot be pressed vertically, accurate hardness cannot be measured.

In addition, even when attaching the name plate with the manufacturing history of the metal rod, it is more efficient to attach to the flat surface rather than the curved surface, and even when the lot number or the steel type is engraved, the flat surface is more preferable than the curved surface.

However, in order to grind the flat rod on the outer circumferential surface of the long and heavy metal rod, it is very inconvenient not only to move the metal rod to the milling machine but also to grind the grinding rod. For example, making psalms is not easy.

In addition, when the flat name plate is attached to the outer peripheral surface of the curved surface, the thin name plate is small and deformed, but the attachment state is difficult to be adhered to. There are aspects that are difficult to do

In order to solve the above inconvenience, an easily movable milling machine is essential. In Korea Patent No. 315666, "Portable Milling Machine" is registered, and Utility Model No. 211421 is "Hydraulic system for height adjustment and movement is installed. Portable milling machines "are each published.

Since the two portable milling machines are equipped with wheels for moving, the portable milling machine needs to be moved to a place where planar grinding is required, but the milling operation can be easily performed. As a result, it may not be possible to move, and there is a disadvantage in that the portable milling machine cannot be moved by human force.

That is, the two portable milling machines can be conveniently used when removing a lug, which is a kind of wire rope or hook hook that is welded to the steel structure so that a large steel structure such as a ship or a bridge can be carried by a crane. Where a plurality of metal rods are placed there is a problem that can not move.

The present invention was devised to solve various problems of the mechanical properties of various rods such as metal rods, in particular, the conventional method or apparatus for measuring the hardness, and the self-owner can move freely by force alone. An object of the present invention is to provide a portable milling machine capable of easily grinding a flat surface in a fixed state on an outer circumferential surface.

The object of the present invention is achieved by a support member and a fixing member coupled to a bottom surface of a pedestal for reciprocating a rotary cutter of a milling machine.

The portable milling machine of the present invention can be easily transported by one or two workers to a place where milling work is needed, and thus has a feature that the milling operation can be easily performed without space limitation. .

As described above, the portable milling machine of the present invention that can be used with almost no restrictions in place,

A pedestal placed on the upper surface of the planar grinding object such as a metal rod;

A pair of supports respectively coupled to both sides of the bottom of the pedestal;

A fixing member detachable from the other end of the pedestal in a state in which one end thereof is coupled to one end of the pedestal in the longitudinal direction;

A horizontal carriage vertically installed on an upper surface of the pedestal so that left and right reciprocation are possible;

A vertical carriage coupled to a horizontal carriage so that up and down can be reciprocated;

A rotary cutter coupled to the front side of the vertical carriage;

A drive motor coupled to the back of the vertical carriage;

In order to transmit the rotational force of the drive motor to the rotary cutter, both sides are composed of a power transmission member connected to the rotary cutter and the drive motor, respectively.

In this case, the fixing member is preferably a rigid yet flexible wire rod such as a metal chain or a metal wire.

The power transmission member may include a belt or chain constituting a closed loop, a pulley or a sprocket coupled to the rotary shaft of the rotary cutter and the drive motor, respectively, and a gear and two gears respectively coupled to the rotary shaft of the rotary cutter and the drive motor. It may be composed of a reducer composed of one or more connecting gears for connecting, or may be engaged with each other gears coupled to the rotary shaft of the rotary cutter and the drive motor, it can be freely selected from various structures or forms as necessary. .

The pedestal includes a support plate having a bottom surface placed on an upper surface of a workpiece and a support frame having a rectangular frame shape coupled to an upper surface of the support plate, and the support base has a width direction of the pedestal on both sides of the bottom longitudinal direction of the support plate, that is, the support plate. By being coupled together, it serves to allow the support stand to be placed horizontally on the workpiece.

In addition, the pedestal and the horizontal carriage is provided with a screw, respectively, the screw provided in the pedestal is horizontally coupled along the longitudinal direction of the support frame, the screw provided in the horizontal carriage is the height direction of the upright horizontal carriage, , In a vertical direction.

That is, the horizontal carriage can be moved left and right in the horizontal direction along the pedestal by the rotation of the horizontal screw coupled to the pedestal, the vertical carriage is in the vertical direction by the rotation of the vertical screw provided in the horizontal carriage. Lower reciprocating movement becomes possible.

Method of using a portable milling machine of the present invention configured as described above is as follows.

The pedestal is placed on the upper surface of the metal rod to be processed, so that the bottom of the pedestal between the two supports is in contact with the upper outer peripheral surface of the workpiece.

That is, the longitudinal direction of the pedestal to make a right angle to the axial direction of the metal rod, and the two supports parallel to the axial direction to contact the outer peripheral surface of both sides of the upper outer peripheral surface of the metal rod, respectively.

In the state where the pedestal is placed on the metal rod as described above, the fixing member coupled to one side end of the pedestal in one longitudinal direction is in close contact with the bottom surface of the metal rod, and the other end of the fixing member is coupled to the other end of the pedestal in the longitudinal direction. Secure the milling machine to the metal rod by tightening it.

With the milling machine fixed as above, lower the vertical carriage so that the rotary cutter can come into contact with the metal rod, operate the drive motor, and then horizontally grind the top outer circumferential surface of the metal rod forming the curved surface by moving the horizontal carriage on the pedestal. It becomes possible to process.

The purpose and detailed technical characteristics and effects of the present invention will be clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention.

1 is a perspective view of the present invention portable milling machine, a front view in FIG. 2, a side view in FIG. 3, a plan view in FIG. 4, and a bottom view in FIG. 5.

As shown the present invention portable milling machine,

A rectangular frame-shaped support frame having a flat horizontal hole H formed therethrough in the upper and lower directions along the longitudinal direction of the center portion of the square plate on the bottom plate 11A of the rectangular plate placed on the upper surface of the workpiece M such as a metal rod. A pedestal 11 to which 11B is coupled;

A pair of supports 12 coupled to the pedestal 11, that is, both sides of the bottom longitudinal direction of the support plate 11A along the width direction of the pedestal 11;

Fixing member 13 of which one end is fixedly coupled to one longitudinal end of the pedestal 11 and the other end is detachable to the other longitudinal end of the pedestal 11 while being in contact with the bottom surface of the workpiece (M). Wow;

A horizontal screw 14 coupled to be rotatable in the horizontal through hole H of the support frame 11B, the handle h being provided at one end of the support frame 11B protruding outwardly;

A bottom surface is screwed to the horizontal screw 14, and the support plate 11A so as to be able to reciprocate in the horizontal direction along the upper surface of the support plate 11A while being in close contact with the support frame 11B by the rotation of the horizontal screw 14. It is installed upright on the upper surface, the horizontal carriage 15 of the rectangular frame shape in which the vertical through-hole (H ') is formed along the longitudinal direction in the center of the width direction;

The handle h is coupled to a horizontal carriage 15 upright on the upper surface of the pedestal 11 so as to be rotatable in the vertical through hole H ', and protrudes outwardly through the top of the horizontal carriage 15. A vertical screw 16 provided with;

A vertical carriage (17) screwed to the vertical screw (16) and capable of reciprocating in a vertical direction along a horizontal carriage (15) in accordance with the rotation of the vertical screw (15);

A drive motor 18 coupled to the back of the vertical carriage 17;

A rotary cutter 19 coupled to the front surface of the vertical carriage 17;

It is composed of a power transmission member 20 connecting the drive motor 18 and the rotary cutter 19 in order to transfer the rotational force of the drive motor 18 to the rotary cutter 19.

When the portable milling machine of the present invention configured as described above is placed on the upper outer circumferential surface of the metal rod having the curvature, it is difficult to keep the base plate 11A having a flat bottom in a horizontal state.

That is, in the state in which the bottom center part of the base plate 11A is put on the upper outer peripheral surface of the to-be-processed object M, the support stand 12 of both sides of the bottom center part contacts each outer peripheral surface of the upper outer peripheral surface of the to-be-processed object M together, respectively. (11) The entire horizontal state can be maintained.

At this time, when the workpiece M has a flat upper surface, the support 12 may be omitted.

In addition, the support 12 may have a variety of cross-sectional shapes, but a bar shape having a relatively long length is preferable as compared with the cross-sectional dimension, but a plurality of short supports may be coupled in the width direction, in this case, the support 12 Is more than one pair.

In addition, when the workpiece (M) is a metal rod having a circular cross section, the diameter of the metal rod may be various dimensions, and the two support 12 may be supported to adjust the separation distance between the two supports 12 according to the diameter of the metal rod. It is good to be detachable to the bottom of (11), but to be coupled to a number of bottoms of the pedestal.

In addition, the clamping member 13 may have various clamping structures. For example, as illustrated in FIG. 6, the fixing member 13, which is a wire rod, may have both lengthwise directions of the pedestal 11. It may be replaced by a pair of brackets (B) fixedly coupled to the bottom of the end, and a pair of tightening screws (S) screwed in a state penetrating through each bracket (B).

That is, it is also possible to fix the pedestal 11 to the workpiece (M) by rotating the tightening screw (S).

In the case of the pedestal 11, the support plate 11A and the support frame 11B are configured for rigid reinforcement. However, the support plate 11A may be omitted and only the support frame 11B may be configured as necessary.

As described above, the present invention portable milling machine can be easily transported by the operator, so that the milling operation can be easily performed regardless of the place, and thus, the hardness measurement time of the manufactured metal rod can be significantly shortened. .

Claims (7)

In a movable milling machine equipped with a drive motor and a rotary cutter, A pedestal 11 provided with a straight horizontal through hole H at the center in the width direction and placed on an upper surface of the workpiece M; A fixing member 13 having one side end coupled to one side of the pedestal 11 and the other end detachable to the other side of the pedestal 11 in contact with the bottom surface of the workpiece (M); A horizontal screw 14 coupled to the base 11 so as to be rotatable in the horizontal through hole H, and having a handle h at one end protruding outward; A horizontal carriage 15, which is upright on an upper surface of the pedestal 11 in a state of being screwed to the horizontal screw 14, and has a vertical through hole H 'formed at a central portion in a width direction thereof; A vertical screw 16 coupled to the horizontal carriage 15 so as to be rotatable in the vertical through hole H ', and having a handle h at an upper end projecting outward; A vertical carriage (17) screwed to the vertical screw (16) to reciprocate in a vertical direction along a horizontal carriage (15); A drive motor 18 coupled to the back of the vertical carriage 17; A rotary cutter 19 coupled to the front surface of the vertical carriage 17; Portable milling machine, characterized in that it comprises a power transmission member 20 is connected to both sides of the drive motor (18) and the rotary cutter (19), respectively. According to claim 1, The pedestal 11 is a support frame 11B of the rectangular frame shape is formed with a straight horizontal through hole (H) penetrating in the up and down direction, or. Portable milling machine, characterized in that consisting of a square plate bottom plate (11A) and the support frame (11B) coupled to the top surface of the bottom plate (11A). 2. The portable milling machine according to claim 1, wherein both sides of the bottom center portion of the pedestal (11) are joined to the support (12) which is in close contact with the upper surface of the workpiece (M). 4. Portable milling machine according to claim 3, characterized in that the distance between the two side supports (12) is adjustable. Portable milling machine according to claim 1, characterized in that the fixing member (13) is either a metal chain or a metal wire. The method of claim 1, wherein the fixing member 13, a pair of brackets (B) fixedly coupled to the bottom surface of both ends of the longitudinal direction of the pedestal 11, and screwed in the state penetrating through each bracket (B) Portable milling machine, characterized in that replaceable by a pair of tightening screw (S). The method of claim 1, wherein the power transmission member 20, Or a pair of pulleys coupled to each rotary shaft of the rotary cutter 19 and the drive motor 18, and a belt connecting the two pulleys, Or a pair of sprockets coupled to each rotary shaft of the rotary cutter 19 and the drive motor 18, and a chain connecting the two sprockets, It is composed of a pair of gears coupled to each rotary shaft of the rotary cutter 19 and the drive motor 18 and engaged with each other, A portable milling machine, characterized in that it consists of a pair of gears coupled to each rotary shaft of the rotary cutter (19) and the drive motor (18), and one or more connecting gears connecting the two gears.

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