KR20110114142A - Apparatus for cutting lug and piece - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lug and piece cutting device for cutting lugs and pieces installed in a ship block, comprising: a caterpillar installed as a wheel of a feed cart to generate a feed force during traveling and cutting; and a plurality of caterpillars installed inside the caterpillar. A cutter section in which a band saw is wound around a magnetic chuck, a band saw wheel driven by a wheel motor at the front of the body frame, and a plurality of guide rollers alternately arranged with a plurality of guide rollers, and are installed in a triangle shape; The cutter height adjusting part for fixing the cutter part up and down by fixing the cutter part to the LM guide to be installed and the LM guide block installed thereon, and lifting the band saw wheel and the wheel motor at the rear of the cutter part together to adjust the tension of the band saw wheel. Possible to adjust the tension and the upper surface of the band saw when cutting the lug body with a roller attached to the cylinder rod. Characterized by configured to include a cutting guide portion for preventing the rim, the plurality of the installed in multiple locations around the band saw air cooling, coolant, such as a brush scraper is optionally installed or composite band saw cooling unit is.

Description

Lug and Piece Cutting Device {Apparatus for cutting Lug and Piece}

The present invention relates to a lug and a piece cutting device for cutting a lug or a piece installed in ship blocks, by installing a band saw cutter on the front of a feed cart on which a caterpillar is installed, and driving the cutting force at the time of driving and cutting by a caterpillar drive. The lower guide rollers on which the band saw is wound are installed in order to reduce the size of the equipment by installing a plurality of rollers large and small in consideration of the minimum radius of curvature of the band saw. A lug and piece cutting device which allows height adjustment.

In general, when the ship is constructed, the whole ship is divided into several large blocks, and then stacked and connected to complete the ship. In the block mounting process, a lug for connecting with a large crane is necessarily installed. The lug is made through a separate production and then fixed by welding to each of the blocks, and the hook (hook) of the crane to the lug is carried to the position required for the block.

Thereafter, after the mounting process was completed, the lugs had to be removed from the block, and the removal of such lugs had considerable difficulty compared to the installation process. In particular, the above lugs are installed to be quite robust for the prevention of safety accidents, the removal process is more difficult, there is a risk of painting damage, there was a difficulty in using devices for preventing painting damage.

In view of such difficulty in removing lugs, a technique has been developed to remove lugs using a band saw or a large cutter.

As an example of a lug cutting device using a conventional band saw, the lug cutter of Utility Model Registration Application No. 20-2003-0010847 is known.

Figure 1 is an illustration of a conventional lug cutter, as shown therein, is a cutting equipment using a band saw (band saw) to remove the lug installed for crane use.

A saw blade configured to rotate by a drive wheel 12 and a driven wheel 13 arranged side by side on the cutter body 11a, the cutter 11 comprising a cutter 10 and a frame 10 supporting the cutter. 14 is moved to the same horizontal direction as the surface of the hull block, the cutter 11 is configured to include a conveying means for linearly reciprocating the top guide 10a of the frame 10, the frame ( 10, the magnetic chuck 17, which is moved up and down by the cylinder 15, and the movable wheel 18, which is moved up and down, are installed by the cylinder 17 fixed to the bracket.

The band saw 14 is wound around the outer surfaces of the driving wheel 12 and the driven wheel 13, and obtains the rotational force for cutting through the rotation of the driving wheel 12. The cutter made of the driving wheel 12 and the driven wheel 13 is capable of linear reciprocating motion through the guide of the left and right frame 10. The band saw 14 rotates while cutting linearly along the guide while moving toward the lug to be cut. A magnetic chuck 17 is provided to fix the equipment during cutting, and a moving wheel 18 fixed to the bracket and moved up and down by the cylinder 17 is installed.

 As another conventional technology, a lug cutting device is disclosed in Korean Patent Laid-Open Publication No. 10-2007-0001863.

Figure 2 is a block diagram showing an embodiment of another conventional lug cutting device.

With a main frame 20 constituting the body for cutting the lug and the cloud portion 30 and the plurality of support ribs which are installed on the main frame 20 to support the rolling movement of the main frame 20 and both sides It consists of a cutter portion 40 for cutting the lugs fixed to the block, the cutter portion 40 is configured to include three drive pulleys (41).

In addition, the main frame 20 has a residual removal unit 50 for removing the remaining portions of the lugs and support ribs remaining in the block after the lugs and the support ribs are cut and a residual to solve the residual stress existing in the lugs before the lug cutting. Lug cutting device is configured to further include at least one of the stress relief.

The prior art in FIGS. 1 and 2 includes a frame and a guide device on the frame to drive the cutter unit to cut the lug by transferring the cutter unit. The problem with this structure is that the size of the frame must be increased to enable the cutting operation according to the size of the lug to be cut, and the overall size of the frame makes it difficult for the operator to move the cutting equipment to the position where the lug is mounted. Equipment movement may not be possible.

In addition, the prior art according to FIGS. 1 and 2 uses a band saw as a cutting tool. In FIG. 1, a band saw is formed on the outer circumferential surface of each wheel by using two driving wheels and a driven wheel which are generally used for driving the band saw. Use by winding. This wheel configuration has a relatively large width of the cutting equipment, in order to solve this problem is composed of three drive wheels to be arranged in a triangle as in the prior art of Figure 2 and the relatively of the three wheels of the triangular structure The diameters of the two wheels arranged at the bottom were made smaller than the height of the lugs.

However, the problem with this structure is that the wheel diameter of the bottom is applied below the minimum curvature of the band saw, which may cause the life of the band saw to be deteriorated, and when applied above the minimum curvature of the band saw, the two wheels as shown in FIG. It can have the cutting equipment width that the structure has.

In the prior art, the cutting unit is mounted on both side support guides of the frame to perform the cutting operation. The frame is fixed so that the lug cutting height is not adjusted. When the lug is cut at the fixed height, there is a problem that it is difficult to cut at an appropriate height (height to minimize the lug cutting member remaining after cutting) due to the deformation of the bottom plate generated during the lug welding.

The present invention provides equipment by using the cutting feed force of the cutting unit and the drive unit to move the equipment to the lug position in order to solve the problems caused by the enlargement of the cutting equipment caused by using the frame and the guide device for the transfer of the cutting unit using the band saw. It is to provide a lug and piece cutting device for solving the problem of large size.

In addition, the present invention is to provide a lug and piece cutting device to minimize the overall size by arranging a plurality of large and small guide rollers on the lower left and right side corresponding to the main driving wheel to adjust the radius of curvature of the band saw.

The present invention is installed on the left and right sides of the lower end of the body frame of the lug cutting device and the carafiller for generating a feed force by the traveling motor;

A band saw wheel driven by a wheel motor is installed at the front center upper side of the body frame, and two types of guide rollers having different sizes are arranged alternately on the lower left and right sides, and the band saw wheel and the plurality of guide rollers A cutter portion for rotatably winding the band saw to cut the lugs by rotation of the band saw;

A tension adjusting unit installed to lift the band saw wheel to the upper part of the cutter to adjust the tension of the band saw;

A cutter height adjusting part for adjusting an upper and lower height of the cutter part by installing an LM guide block on the LM guides installed above and below the body frame and fixing the cutter part on the LM guide block;

Two cylinders are arranged to be inclined from both sides to the center lower direction with respect to the lug passing portion of the body frame, and rollers are installed at the end of the operating portion of the cylinder, and the guide roller presses the upper surface of the band saw by the cylinder operation. Cutting feed guide unit to prevent shaking;

It is installed in a plurality of positions around the band saw, characterized in that it comprises an air injection nozzle, cooling oil supply nozzle for cooling, a brush scraper for cleaning the foreign material of the band saw comprises a band saw cooling unit or optionally installed.

The cutting unit,

A base plate fixed to the LM guide block so as to vertically move up and down at a front portion of the transport cart, and having a lug passing portion for passing therethrough including a lug and a lug support rib to be cut at a lower center portion;

A band saw wheel having a slide groove formed up and down in a central portion of the base plate, the wheel shaft being coupled to the upper and lower slides and installed in front of the base plate;

A plurality of guide rollers having different sizes to be rotatably fixed to the lower left and right sides of the base plate corresponding to the band saw wheel;

A band saw wound around the band saw wheel and a plurality of guide rollers having different sizes and rotatably installed;

A wheel motor for generating rotational power of the band saw wheel,

And a power transmission means for transmitting power by connecting the motor pulley installed on the rotation shaft of the reducer of the wheel motor and the wheel pulley installed on the rotation shaft of the band saw wheel with a power transmission belt.

The present invention is implemented by the caterpillar driving and cutting cutting of the cutting device together, it is possible to reduce the size of the equipment compared to the prior art of cutting and transporting the cutter by the use of the frame, the lower left and right installed in response to the band saw wheel By arranging two or more guide rollers in alternating arrangement of the guide rollers in consideration of the minimum radius of curvature of the band saw, it is possible to reduce the size of the triangular band saw installation, and to adjust the cutter up and down, so that the band saw is at the bottom surface when driving. Safe movement is possible by not being close to, and when cutting, by pressing the band saw by the cutting guide roller to prevent the band saw shake, there is an effect that can adjust the tension of the band saw by installing the cutter tension control.

1 is an illustration of a conventional lug cutter.
Figure 2 is a configuration showing an embodiment of another conventional lug cutting device.
3 is a front configuration diagram of a lug and a piece cutting device according to the present invention.
4 is a right configuration diagram showing a vertical height adjustment configuration.
5 is a plan view illustrating a configuration in which a magnetic chuck is installed in a caterpillar.
6 is a left configuration diagram for explaining a tension control configuration.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a front configuration diagram of a lug and a piece cutting device according to the present invention, FIG. 4 is a right configuration diagram showing a vertical height adjustment configuration, and FIG. 5 is a planar configuration diagram illustrating a configuration in which a magnetic chuck is installed in a caterpillar. 6 is a left configuration diagram for explaining the tension control configuration.

 As shown therein,

Caterpillar 120 is installed on the lower left and right sides of the body frame 101 constituting the body to generate a transfer force by the driving motor 121;

Magnetic chuck installed inside the caterpillar 120 to generate an adhesive force on the target iron plate installed lugs to be cut by the magnetic force, and to adjust the strength of the magnetic force according to the cutting process, traveling process and launching process 170;

The front and rear of the body frame 101 is installed to be able to move up and down, the band saw wheel 114 of the upper center and the plurality of guide rollers 115, 116 of the lower left and right are wound around the wheel motor 111 A cutter unit 110 for driving the band saw wheel 114 to cut the lugs by the rotation of the band saw 117;

A tension adjusting unit installed at the cutting unit 110 to adjust the tension of the band saw 117 by lifting the band saw wheel 114 upward;

The LM guide block 142 is installed in the LM guide 141 which is installed up and down inside the body frame 101 and driven by the height adjusting drive motor 143, and the cutting unit is provided in the LM guide block 142. A cutter height adjusting unit for fixing 110 to raise and lower the cutter unit 110 up and down;

Two guide cylinders 151 and 152 are fixed to the body frame 101 and are inclined in the center lower direction. The guide rollers 151a are cut at the end of the operating rod of the guide cylinders 151 and 152. 152a is installed, and the cutting guide rollers 151a and 152a press the upper surface of the band saw 117 by the operation of the guide cylinders 151 and 152 to prevent the band saw 117 from shaking. Wealth;

The plurality of band saw cooling units 160 are installed at a plurality of positions around the band saw 117 and are provided with a composite or selectively installed air spray nozzles for cooling, insulating oil supply nozzles, and brush scrapers for cleaning foreign substances of the band saw 117. Characterized in that configured to include.

The cutting unit 110,

The base is fixed to the LM guide block 142 is installed vertically to the lifting and lower portion of the transport cart and the lug passing portion 112a for including the lug and the lug support rib to be cut in the lower center portion to pass through Plate 112;

A band saw wheel 114 is formed in the center of the base plate 112, the slide groove is formed up and down, the wheel shaft is coupled to the upper and lower slides and installed in front of the base plate;

A plurality of guide rollers 115 and 116 having different sizes rotatably fixed to the lower left and right sides of the base plate 112 corresponding to the band saw wheel 114;

A band saw 117 wound around the band saw wheel 114 and a plurality of guide rollers 115 and 116 having different sizes and rotatably installed;

A power transmission means 111a installed inside the base plate 112 and transmitting power to the band saw wheel 114;

It comprises a wheel motor 111 for generating a rotational power of the band saw wheel 114 to rotate the band saw wheel 114 through the power transmission means (111a).

In addition, the cutting unit 110,

Between the band saw wheel 114 and the left and right guide rollers 115 and 116 are respectively provided one by one, and further includes a taper-shaped release prevention roller 118 to prevent the band saw 117 from being separated. Characterized in that configured.

The tension control unit,

A base plate long hole 131 formed in the base plate 112 in a vertical direction to allow the band saw wheel 114 to slide up and down;

A horizontal bracket 134 installed on the base plate 112,

A tension adjusting cylinder 133 installed on the horizontal bracket 134;

It is fixed to the end of the tension control cylinder rod 133a penetrating to the lower portion of the horizontal bracket 134, characterized in that consisting of a power transmission means bracket 134 for fixing and supporting the power transmission means (111a).

The cutter height adjusting unit further includes a stopper 144 for stopping the LM guide 141 so that the height of the cutter unit 110 can be fixed at the working height during the cutting operation.

In the present invention configured as described above, the caterpillar 120 is installed at the left and right sides of the body frame 101, and a plurality of magnetic chucks 170 are installed in the caterpillar 120. The front of the body frame 101 is provided with a cutter unit 110 for cutting the lug using the band saw 117 to slide up and down. The cutting unit 110 is provided with a tension control unit, the LM guide 141 is installed up and down inside the body frame 101 and the cutting unit 110 is fixed to the LM guide block 142 to adjust the height up and down. It is configured to be possible. In addition, an air cooling nozzle for cooling the band saw 117 of the cutter unit 130, a cutting oil spray nozzle, a brush scraper, and the like are further installed.

The present invention moves the band saw 117 by moving the position of the lug to be cut by the caterpillar 120, that is, the working position, and driving the wheel motor 111 by lowering the cutting unit 110 at the working position. It rotates to cut the bottom of the lug. At this time, the cutting guide rollers 151 and 152 are pressed on the upper surface of the band saw 117 to prevent the shaking of the band saw 117 to maintain a horizontal state on the bottom surface.

In the present invention, the lug is cut using a band saw 117 as a cutter tool. Among the problems of the related arts described with reference to FIGS. 1 and 2, first, the problem caused by the enlargement of cutting equipment caused by using the frame and the guide device for the transfer of the lug cutter unit is to be solved.

In the present invention, without using the frame and the guide device as described above, the implementation of the feed force of the cutter portion to be transported when cutting the bottom of the lug and the drive unit to transfer the cutting equipment to the lug to be cut was used in the same manner. In order to prevent the vibration of the cutting equipment that can occur when cutting the lug to maximize the frictional force with the ground by using a caterpillar 120 rather than a drive type of the general wheel, the magnetic chuck 170 is provided in the caterpillar 120 drive unit Minimized by using magnetic force for vibration or impact during cutting. The magnetic chuck 170 has a control to operate all of the plurality of magnetic chuck 170 when cutting the lug and only to operate the magnetic force enough to prevent the overturn of the equipment for high-speed driving when moving to another lug after cutting. Possible devices were provided.

In addition, the caterpillar drive unit 120 is mounted on the left and right rear sides of the cutter unit 110 to move the cutter unit 110 in order to cut the lugs mounted on the front of the equipment and does not interfere with the lugs passing through the cutter unit 110. It was not.

The lug cutting device of the present invention used a caterpillar drive motor 121 to drive each of the caterpillar 120 mounted on both sides of the equipment, it is possible to change the direction of the high-speed feed and cutting equipment at the time of cutting at low speed and movement. When the cutting equipment is configured as described above, the size of the overall equipment can be reduced compared to the method of using the frame and the guide device in the previous technology, and the driving and direction switching of the cutting equipment and the cutting transfer can be performed only by the caterpillar drive unit.

In order to improve the shape of the cutting unit 110, in the present invention, a wheel in which the band saw 117 is wound in a triangular structure is disposed. In the prior art, two small wheels were placed at the bottom and one large wheel was placed at the top to wind the band saw around the outer surface of the wheel. However, because the band saw has a minimum curvature that can be bent and the band saw must be wound on the wheel beyond this minimum curvature to ensure the life of the band saw, the two smaller wheel diameters at the bottom are located above the minimum bending radius of the band saw. Should be. The two wheel sizes of the lower part thus arranged may increase the width of the cutting equipment, and when the width of the cutting equipment increases, the cutting may not be possible due to the interference member on the lug side.

The present invention arranges the band saw 117 to be wound around the outer surface of the plurality of guide rollers 115 and 116 above the minimum radius of curvature of the band saw instead of the two lower wheels in order to minimize the width of the cutting equipment. In addition, the arrangement of the guide rollers 115 and 116 may be alternately arranged between the small rollers 115 and the large rollers 116 so that the band saw 117 may be rotated by gently winding the outer surfaces of the guide rollers 115 and 116. It was made.

The cutter 110 has a band saw 117 wound around the wheel 114 and the guide rollers 115 and 116 to prevent the peeling off during rotation. And a band saw cooling unit 160 having a plurality of air cooling nozzles, a coolant spray nozzle, and a brush scraper disposed around the band saw 117.

 In addition, the cutting guiding rollers 151a and 152a attached to the ends of the guide cylinders 151 and 152 when the center member of the lug is cut through the guide cylinders 151 and 152 disposed on the left and right sides of the upper surface of the band saw 117. In contact with to prevent the shaking of the band saw 117. In addition, when cutting the wing member (supporting portion) of the lug, the guide cylinders 151 and 152 are automatically operated to allow the cutting guide rollers 151a and 152a to enter the cutting unit 110, thereby allowing the wing member and the cutting guide to be cut. The rollers 151a and 152a are not interfered with.

When the lug is attached through welding, the heat of the welding causes the bottom plate to deform and the flatness of the bottom surface is reduced. Therefore, in the present invention, the cutter height adjusting unit for adjusting the cutter unit 110 up and down height was installed. The cutter height adjusting unit has an LM guide block 142 is installed in the LM guide 141 is installed up and down, and the cutter unit 110 is fixed to the LM guide block 142. It is installed to the fixed frame fixedly attached to the LM guide block 142 to the inner side of the base plate 112 of the cutter unit 110, the LM guide 141 is driven by a height adjustment drive motor 143. It is possible to adjust the height of the cutter unit 110 up and down.

When the cutting equipment needs to be moved to another position, the cutter unit 110 is lifted to prevent the bottom surface and the band saw 117 from interfering with each other when driving. When the cutting equipment is located at the cutting operation position, the height of the cutting unit 110 is lowered to minimize the height of the remaining members remaining after the cutting without contacting the band saw 117 and the bottom surface. When the cutting unit 110 is adjusted up and down height can be driven up and down through the LM guide block 142 along the up and down LM guide 141 installed on the body frame 101 located above the caterpillar 120, the drive motor The driving force of 143 may move the cutter unit 110 by a predetermined height. The stopper 144 is provided to move the cutter unit 110 downwardly before cutting to maintain its height accurately during the cutting operation.

The cutter unit 110 is provided with a tension adjusting unit for adjusting the height of the upper band saw wheel 114 of the band saw 117 and the wheel motor 111 for rotating the band saw wheel 114 to initialize the band saw 117. After mounting on the cutter unit 110 can be given a suitable tension.

When the tension adjusting cylinder 133 is driven and the tension adjusting cylinder rod 113a is pulled, the tension adjusting unit 133 is lifted upwardly while the power transmission means bracket 134 fixedly coupled to the cylinder rod is lifted. Since the base plate is raised to the top through the long hole 131 to pull the band saw 117, the tension can be adjusted.

101: body frame 110: cutting unit
111: wheel motor 111a: power transmission means
112: base plate 113: lug passing part
114: band saw wheel 115, 116: guide roller
117: band saw 118: release prevention roller
120: caterpillar 121: driving motor
131: base plate long hole 132: horizontal frame
133: tension control cylinder 134: power transmission means bracket
141: LM guide 142: LM guide block
143: Height adjusting drive motor
151,152: Cutting guide cylinder 151a, 152a: Cutting guide roller
160: band saw cooling unit 160: magnetic chuck

Claims (6)

Caterpillar 120 is installed on the lower left and right sides of the lug cutting device body frame 101 to generate a feed force by the traveling motor 121;
A magnetic chuck 170 installed inside the caterpillar 120 to generate adhesion to a target iron plate on which a lug to be cut by magnetic force is installed;
The front and rear of the body frame 101 is installed to be able to move up and down, the band saw wheel 114 of the upper center and the plurality of guide rollers 115, 116 of the lower left and right are wound around the wheel motor 111 A cutter unit 110 for driving the band saw wheel 114 to cut the lugs by the rotation of the band saw 117;
The LM guide block 142 is installed in the LM guide 141 which is installed up and down inside the body frame 101 and driven by the height adjusting drive motor 143, and the cutting unit is provided in the LM guide block 142. A cutter height adjusting unit for fixing 110 to raise and lower the cutter unit 110 up and down;
The plurality of band saw cooling units 160 are installed at a plurality of positions around the band saw 117 and are provided with a composite or selectively installed air spray nozzles for cooling, insulating oil supply nozzles, and brush scrapers for cleaning foreign substances of the band saw 117. Lug and piece cutting device comprising a.
According to claim 1, The lug and piece cutting device,
Two guide cylinders 151 and 152 are arranged in an inclined form in the center lower direction from the inside of the band saw 117 of the cutter unit 110, and are provided at the end of the operating rod of the guide cylinders 151 and 152. The cutting guide rollers 151a and 152a are installed, and the cutting guide rollers 151a and 152a press the inner upper surface of the band saw 117 by the operation of the guide cylinders 151 and 152 to shake the band saw 117. Lug and piece cutting device characterized in that it further comprises a cutting guide for preventing the.
The method of claim 1, wherein the cutting unit 110,
The base is fixed to the LM guide block 142 is installed vertically to the lifting and lower portion of the transport cart and the lug passing portion 112a for including the lug and the lug support rib to be cut in the lower center portion to pass through Plate 112;
A band saw wheel 114 is formed in the center of the base plate 112, the slide groove is formed up and down, the wheel shaft is coupled to the upper and lower slides and installed in front of the base plate;
A plurality of guide rollers 115 and 116 having different sizes rotatably fixed to the lower left and right sides of the base plate 112 corresponding to the band saw wheel 114;
A band saw 117 wound around the band saw wheel 114 and a plurality of guide rollers 115 and 116 having different sizes and rotatably installed;
A wheel motor 111 generating rotational power of the band saw wheel 114;
Including a power transmission means 111a for transmitting power by connecting a motor pulley installed on the rotation shaft of the reduction gear of the wheel motor 111 and the wheel pulley installed on the rotation shaft of the band saw wheel 114 with a power transmission belt. Lug and piece cutting device, characterized in that configured.
The method of claim 3, wherein the cutting unit 110,
Between the band saw wheel 114 and the left and right guide rollers 115 and 116 are respectively provided one by one, and further includes a taper-shaped release prevention roller 118 to prevent the band saw 117 from being separated. Lug and piece cutting device, characterized in that configured.
The method of claim 3, wherein the cutting unit 110,
It is installed on the cutter unit 110 further includes a tension adjusting unit for adjusting the tension of the band saw 117 by lifting the band saw wheel 114 to the top,
The tension control unit,
A base plate long hole 131 formed in the base plate 112 in a vertical direction to allow the band saw wheel 114 to slide up and down;
A horizontal bracket 134 installed on the base plate 112,
A tension adjusting cylinder 133 installed on the horizontal bracket 134;
It is fixed to the end of the tension control cylinder rod 133a penetrating to the lower portion of the horizontal bracket 134, characterized in that consisting of a power transmission means bracket 134 for fixing and supporting the power transmission means (111a) Lug and piece cutting device.
According to claim 1, wherein the cutter height adjustment unit,
Lug and piece cutting device, characterized in that further comprises a stopper (144) for stopping the LM guide (141) so that the height of the cutter unit 110 is fixed at the working height during the cutting operation.

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