KR101056741B1 - Device for grinding the surface - Google Patents

Abstract

PURPOSE: A surface grinding apparatus is provided to facilitate the maintenance of grinding direction and achieve uniform ground surface even in case of long time work. CONSTITUTION: A carriage unit comprises a base part(100), at least a pair of first wheel parts(130) supporting the base part, and a handle part(120) provided on a side of the base part. A polishing wheel(210) is provided on the other side of the base part, adjacent to the handle part, and arranged in parallel to the first wheel parts. A driving unit(230) is connected to the rotary shaft of the polishing wheel and provides the torque to the polishing wheel. A drive shaft is coupled to a side of the driving unit and connected through the polishing wheel in order to transfer the power created in the driving unit to the polishing wheel. A fixing member is coupled to the end of the drive shaft on the side connected to the polishing wheel. A contact member is located between the fixing member and the polishing wheel in order to fill a gap between the fixing member and different polishing tools. A grinder unit(200) grinds the surface of a board with the frictional force generated by the torque of the polishing wheel between the polishing wheel and the board. A position compensating unit(300) is movably coupled to the carriage unit and controls the height of the grinder unit according to changes in the height of the grinder unit caused by the abrasion of the polishing wheel.

Description

Surface Polishing Machine {DEVICE FOR GRINDING THE SURFACE}

The present invention relates to a surface polishing apparatus, and more particularly, to a polishing apparatus for removing rust, surface defects and roll damage generated on the surface of a flat plate having a large area during ship drying.

As the industry develops, the volume of logistics increases and the need for transportation increases. Among them, the shipbuilding industry has developed a lot as a safe and economical advantage as a long-distance means of transportation, and especially in the world market, Korea's shipbuilding industry is growing so much that it can compete with the first and second place. Growing.

In general, the ship is constructed by welding a plurality of steel plates and should remove the welding residue or rust generated on the hull surface after the welding operation, PIM due to surface defects and roll damage.

However, in the related art, the grinding shaft of the grinding wheel is driven vertically with the steel plate, which has a property of leaving the grinding wheel in the direction of rotation in the working direction, so that it is difficult to go in the direction intended by the operator, which causes safety accidents. Can be.

 In addition, in order to obtain an even polishing surface, the grinding wheel should always be perpendicular to the steel plate, it is difficult for the operator to maintain the same angle at all times for a long time, and if the vertical grinding wheel is not maintained, Due to the phenomenon that occurs, the polishing surface becomes uneven, which requires the operator to rework with a hand grinder.

In addition, the grinding amount must be kept constant at the beginning and the end, but as the grinding wheel is worn, it is difficult to keep the grinding amount constant. To adjust this, the worker has to adjust the height of the grinding wheel. There is a problem.

Accordingly, the present invention is to solve such a conventional problem, the problem to be solved of the present invention is easy to maintain the direction to be polished, to provide a ship surface polishing apparatus to have a uniform and constant polishing surface even for long time work without uneven wear. It is.

Surface polishing apparatus according to an embodiment of the present invention is installed in the transfer bogie unit and the transfer bogie unit to polish the surface of the plate by the friction force generated between the polishing member and the plate using the rotational force of the polishing member And a position compensating unit rotatably coupled to the grinder unit and the conveyance bogie unit so that the height of the conveyance bogie unit is adjusted according to the change of the height of the grinder unit from the plate by abrasion of the abrasive member.

The transport cart unit may include a horizontal base portion and at least one pair of first wheel parts for supporting the base portion and a handle portion provided at one side of the base portion, and the grinder unit may include the handle portion. It is provided on the other side of the base portion to be adjacent to the wheel-type polishing member disposed in parallel with the first wheel portion and may be connected to the rotating shaft of the polishing member may include a driving unit for providing a rotational force to the polishing member. .

The position compensation unit may include a second wheel for supporting the grinder unit adjacent to the surface of the plate so that the second wheel part and the second wheel part support the one side of the transport cart unit adjacent to the grinder unit. Rotating portion for rotating the portion up and down may include a damper portion for providing a repulsive force to the rotation of the rotating portion.

The damper part may be formed of a spring and disposed between the transfer cart unit and the pivot part.

The grinder unit may further include an impeller coupled between the polishing member and the driving unit to convert the rotational force generated by the driving unit into wind power to remove foreign substances generated during polishing.

The grinder unit is coupled to one side of the driving unit, and the other side of the driving shaft is coupled to the polishing member to transmit power generated by the driving unit to the polishing member and the driving shaft of the side coupled to the polishing member. A fixing member coupled to the end and positioned between the fixing member and the polishing member, may further include a close contact member for filling the separation distance with the fixing member generated when using the polishing member having a variety of polishing widths.

The rotating part may further include a fixing part provided between the transfer cart unit and the rotating part to fix the rotating part to a predetermined position.

The base portion may further include a weight coupled to a position adjacent to the position compensation unit to adjust the amount of polishing by adjusting the pressure of the polishing member against the polishing object.

The base unit may include a driving motor coupled to the pivot shaft of the first wheel.

The display unit may further include an image acquisition unit that is coupled to one side of the transport cart unit to transmit the polished surface of the grinder unit as an image signal, and a display unit that may display an image acquired by combining with the image acquisition unit. .

The surface polishing apparatus may further include an operation unit coupled to an upper portion of the handle part to control an operation of the driving unit.

On the other hand, the grinder unit may be coupled to one side of the transport cart.

According to the surface polishing apparatus according to the present invention, the grinder unit coupled to the transfer bogie unit rotates the position compensating unit in preparation for the amount of wear generated when the surface of the plate is polished, and adjusts the height by the amount of the lost wear to always provide a constant amount of polishing. do.

In addition, when the polishing unit is provided on the side of the surface polishing apparatus, not only the operator can easily identify the polishing surface, but also the replacement of the polishing member for polishing a portion such as a welding surface is easy.

In addition, when the outer circumferential surface of the cylindrical polishing member is mounted to be horizontal to the plate member to be polished, it prevents the occurrence of single wear during polishing.

In addition, when the impeller is formed in the grinder unit, foreign matters generated during polishing may be easily removed.

In addition, having a close contact member to fill the separation distance with the fixing member, it is possible to use a polishing member having a variety of polishing widths.

1 is a perspective view showing a surface polishing apparatus according to a first embodiment of the present invention.
2 is a perspective view of the surface polishing apparatus of FIG.
3 is a bottom perspective view illustrating the position compensator of FIG. 1.
4 is a side view illustrating an operating state of the position compensator of FIG. 1.
5 is a bottom perspective view of the grinder unit and the position compensator of FIG. 1.
6 is a side view illustrating an operating state of the grinder unit and the position compensator of FIG. 1.
7 shows a partially enlarged view according to the second embodiment of the present invention.
8 is a partially enlarged view according to a third embodiment of the present invention.
9 is a partially enlarged view according to a fourth embodiment of the present invention.
10 is a partially enlarged view according to a fourth embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text.

However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

≪ Example 1 >

1 and 2 are perspective views for explaining a surface polishing apparatus according to an embodiment of the present invention, Figure 5 is a bottom perspective view for explaining a position compensation unit and a grinder unit.

1, 2 and 5, the surface polishing apparatus 1000 of the present embodiment is coupled to one side of the transfer bogie unit 100 and the transfer bogie unit to enable the operator to transfer in the desired direction plate And a grinder unit 200 capable of polishing the surface, and a position compensating unit 300 coupled to the transport cart unit to adjust the height in response to the amount of wear of the polishing member.

In detail, the transport cart unit 100 may include a base part 110, a handle part 120, and a first wheel part 130. For example, the base 110 may be formed of a rectangular rectangular plate. Or, depending on the situation it may be modified in the form of a c-shape or the like to facilitate coupling of the other device on one side of the base portion.

The handle part 120 is coupled to one side of the base part 110. One end of the handle portion 120 is coupled to one surface of the base portion 110 is configured to have a height and length for the operator to easily adjust the surface polishing apparatus 100.

The first wheel part 130 is provided below the base part 110. For example, the first wheel unit 130 is coupled to one end of a bearing unit (not shown) and a shaft (not shown) provided in the lower portion of the base portion, or formed by forming a protrusion on the side of the base portion 110, etc. It has a structure that can smoothly transfer the transfer cart unit (100).

The grinder unit 200 includes an abrasive member 210, an abrasive member cover 220, a driver 230, and an impeller 240. For example, the polishing member 210 may be formed in a cylindrical shape, and the outer circumferential surface of the cylinder is coupled to form a horizontal plane with a plate, and a general polished stone or ceramic polished stone may be used to easily polish the surface of the plate.

The abrasive member cover 220 includes a first cover 221, a second cover 222, and a hinge 223. One side of the first cover 221 is coupled to the side of the base plate 110, it may be formed in a cylindrical shape to surround the polishing member 210 to block foreign substances generated during polishing.

One side of the second cover 221 is rotatably coupled to the lower portion of the first cover 220 through the hinge 223, the other side is in contact with the plate material in accordance with the amount of wear of the abrasive member 223 It can be rotated on the basis of the standard to maintain contact with the plate.

The driving unit 230 includes a motor M, a first pulley 232, a second pulley 233, a V-belt 234, a cover 235, and a drive shaft 236. For example, the motor M is coupled to the upper portion of the base 110 to generate power.

The first pulley 232 is coupled to the rotation shaft of the motor (M) and transmits power to the second pulley 233 through the V-belt 234.

In addition, the polishing coupled to the other end by the power transmitted from the second pulley coupled to one end of the drive shaft 236 rotatably coupled to a bearing unit (not shown) provided in the lower portion of the base portion 110 I can let a member rotate

In addition to the combination of the pulley and the belt, it is also possible to install and drive the motor directly to the chain and the sprocket or the polishing member.

The impeller 240 is formed of a plurality of blades so as to generate wind power when rotating, and coupled with the drive shaft 236 to rotate together when the drive shaft 236 rotates the drive shaft 236 Cause

At this time, the generated wind prevents the polishing residues generated when the polishing member 210 polishes the plate to be accumulated in the polishing member cover 220.

3 and 4 are bottom perspective views and operating state diagrams for explaining the position compensation unit shown in Figure 1, Figure 6 is an operating state diagram showing the operation of the position compensation unit according to the degree of wear according to the polishing of the polishing member. .

4 and 6, the position compensating unit 300 includes a pivoting part 310, a damper part 320, and a second wheel part 330. For example, the pivoting part 310 may be coupled to the shaft, and the shaft may be coupled to a bearing unit 312 provided above the base part 110 to be rotatable.

The damper part 320 may include a spring 321, a lower fixing member 322, an upper fixing member 323, and a vertical holding hinge 324. The spring 321 may be coupled between the lower fixing member 322 and the upper fixing member 323.

One side of the lower fixing member 322 is coupled to the base portion 110, the other side projection is fitted to the inner surface of the spring 321 is separated by elasticity caused by the compression caused by the spring 321 is rotated Can be prevented.

One side of the upper fixing member 323 is coupled to the vertical holding hinge 324, the other projection is coupled to the inner surface of the spring 321 is elastic to the spring 321 is generated by compression according to the rotation It is possible to prevent the departure by.

Both ends of the vertical retaining hinge 324 are rotatably coupled to a groove (not shown) formed in the pivoting part 310 and a hole (not shown) formed in the upper fixing member 323. ) Can maintain the upper fixing member 323 vertically when rotated relative to the rotation shaft 311 to prevent the spring 321 from bending.

The second wheel part 330 is coupled to the lower end of the rotating part 310, may be made of a wheel for smooth running, the torsion phenomenon occurs when the polishing member 210 is coupled to the side surface polishing the plate Can be suppressed.

Surface polishing apparatus 1000 having the above-described structure is suitable for polishing the surface of a wide range of vessels, such that the progress of the work is made quickly, thereby saving labor costs. In addition, as described above, as the abrasive member 210 is worn, the position compensation unit 300 rotates and maintains a constant height so as to have an even polishing surface, and the polishable part of the abrasive member 210 may be used without further manipulation. It can improve the working efficiency and greatly reduce the material cost.

<Example 2>

7 is a partially enlarged view for explaining a surface polishing apparatus according to a second embodiment of the present invention.

The surface polishing apparatus according to the present embodiment is substantially the same as the surface polishing apparatus 1000 according to the first embodiment described above except for the rotating part fixing unit 400 and the rotating part fixing groove 410. Is omitted, the surface polishing apparatus 1000 uses the same reference numerals for the other components except for the rotating part fixing unit 400 and the rotating part fixing groove 410.

Referring to FIG. 7, the surface polishing apparatus 1000 further includes a rotating part fixing unit 400 and a rotating part fixing groove 410 capable of fixing the rotating part 310 to a predetermined height. For example, the rotating unit fixing unit 400 may include a pin that is coupled to one side of the base unit 110 to move forward or backward.

The rotating part fixing groove 410 may be formed so that the rotating part fixing unit 400 may be fitted to one surface of the rotating part 310.

Accordingly, when the polishing member 210 replacement work or operation is completed and moved to another zone, the polishing member 210 may be exchanged or moved by fixing the rotating part 310 with the rotating part fixing unit 400.

<Example 3>

8 is a partially enlarged view for describing the surface polishing apparatus 1000 according to the third embodiment of the present invention.

Since the surface polishing apparatus 1000 according to the present exemplary embodiment is substantially the same as the surface polishing apparatus according to the first embodiment described above except for the polishing amount adjusting unit, overlapping descriptions are omitted, and other configurations except the polishing amount adjusting unit are omitted. The same reference numerals are used for elements.

Referring to FIG. 8, the surface polishing apparatus 1000 further includes a weight storing unit and a weight. For example, the weight storing unit may be installed at one surface of the control unit or adjacent to the grinder unit to easily transfer the weight to the polishing member.

The weight may be made of a circular or rectangular rectangle and the like and may be made of a metal having a high specific gravity.

As described above, according to the embodiment, the degree of pressure that the polishing member is pressed on the plate may vary depending on how much the weight is stored in the weight accommodating part, so that the amount of polishing may be adjusted according to the degree of surface defects.

<Example 4>

9 is a partially enlarged view for explaining the surface polishing apparatus 1000 according to the fourth embodiment of the present invention.

Since the surface polishing apparatus 1000 according to the present exemplary embodiment is substantially the same as the surface polishing apparatus 1000 according to the first embodiment described above except for the traveling motor 600, redundant description thereof will be omitted, and the traveling motor will be omitted. The same reference numerals are used for components other than (600).

Referring to FIG. 9, the surface polishing apparatus 1000 may further include a driving motor 600. For example, the driving motor 300 may be coupled to a shaft (not shown) coupled to the bearing unit and the first wheel unit 130 at the lower portion of the base unit 110.

Alternatively, it can be coupled using a power train such as chains, sprockets and pulleys, v-belts.

Thus, according to the embodiment, the feeding speed can be adjusted using the traveling motor 600, the surface defects are deep, the area requiring a large amount of polishing slowly or less surface defects can be used to transfer quickly where the small amount of polishing is needed. In addition, it has a uniform polishing surface because it can achieve a constant polishing rate than the man pushes and adjusts.

Example 5

10 is a partially enlarged view for explaining the surface polishing apparatus 1000 according to the fifth embodiment of the present invention.

Since the surface polishing apparatus 1000 according to the present embodiment is substantially the same as the surface polishing apparatus 1000 according to the first embodiment described above except for the image acquisition unit 700 and the display unit 710, the overlapping description will be described. Are omitted, and the same reference numerals are used for the other components except for the image acquisition unit 700 and the display unit 710.

Referring to FIG. 10, the surface polishing apparatus 1000 may further include an image acquirer 700 and a display 710. For example, the image acquisition unit 700 may be installed on the upper portion of the first cover 221. Or, it is preferable that the surface polished by the polishing member 210 is installed in a well visible place.

The display unit 710 may be installed above the handle part 120. Or it is desirable to install in a place where the operator can easily identify.

As described above, the operator can easily check the state of the polished surface photographed by the image acquisition unit 700 to the display unit 710, thereby improving work efficiency.

 In addition, if a worker encounters a problem on the polished surface or plate to be polished during work, the image is sent to the manager through wireless communication, so that the manager can identify the problem faster and more accurately than the reporting system via telephone or walkie talkie. Or the operator can be notified of the instructions.

<Example 6>

11 is a partially enlarged view for explaining the surface polishing apparatus 1000 according to the sixth embodiment of the present invention.

Since the surface polishing apparatus 1000 according to the present exemplary embodiment is substantially the same as the surface polishing apparatus 1000 according to the first embodiment described above except for the contact member 800 and the fixing member 810, the overlapping description will be described. The same reference numerals are used for other components except for the contact member 800 and the fixing member 810.

Referring to FIG. 11, the surface polishing apparatus 1000 may further include an adhesion member 800 and a fixing member 810. For example, the contact member 800 may be formed in a cylindrical shape, and a through hole may be formed to be coupled to the driving shaft 236.

The fixing member 810 may use a fastening member such as a nut, and is coupled to a screw thread formed at an end of the driving shaft 236.

According to this embodiment, the polishing member 210 has to use a polishing member having a small width when polishing a special portion such as a welding surface, which does not fall within the range in which the fixing member 810 can be fixed. In this case, the fixing member 810 may be fixed by further coupling the contact member 800 according to the width, thereby reducing waste of the polishing member.

<Example 7>

10 is a partially enlarged view for explaining the surface polishing apparatus 1000 according to the seventh embodiment of the present invention.

Since the surface polishing apparatus 1000 according to the present embodiment is substantially the same as the surface polishing apparatus 1000 according to the first embodiment described above except for the operation unit 900, the overlapping description is omitted, and the operation unit 900 is omitted. The same reference numerals are used for the other components except for.

Referring to FIG. 10, the surface polishing apparatus 1000 may further include an operation unit 900. For example, the operation unit 900 may be made of a panel including a plurality of switches, it may be installed on the handle portion 120. Or it is preferable to install in the place which is easy for an operator to operate.

According to this embodiment, the operation unit 900 is electrically connected to the surface polishing apparatus 1000, the driving motor 600, the image acquisition unit 700, the display unit 710, and the like to turn on / off light. I can operate it.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1000: surface polishing apparatus 100: feed cart unit
110: base portion 120: handle portion
130: first wheel portion 200: grinder unit
210: abrasive member 220: abrasive member cover
221: first cover 222: second cover
222: second cover 223: hinge
M: Motor 232: First Pulley
233: second pulley 234: V-belt
235 cover 236 drive shaft
240: impeller 300: position compensation unit
310: rotating part 311: rotating shaft
312: rotating bearing unit 320: damper
321: spring 322: lower fixing member
323: upper fixing member 324: vertical holding hinge
400: rotating part fixing oil 410: rotating part fixing groove
500: weight storage unit 510: weight
600: driving motor 700: image acquisition unit
710: display unit 800: contact member
900: control panel

Claims (8)

At least a pair of first wheel parts for supporting a horizontal base part and the base part; And a transport cart unit including a handle part provided at one side of the base part.
A polishing member provided on the other side of the base portion so as to be adjacent to the handle portion and disposed in parallel with the first wheel portion; A driving unit connected to the rotating shaft of the polishing member to provide a rotational force to the polishing member; A driving shaft coupled to one side of the driving unit and the other side penetratingly coupled to the polishing member to transfer power generated by the driving unit to the polishing member; A fixing member coupled to an end of the drive shaft on a side of the polishing member and penetratingly coupled; And an adhesive member positioned between the fixing member and the polishing member to fill a separation distance from the fixing member generated when using the polishing member having various polishing widths. A grinder unit for polishing the surface of the plate with frictional force generated between the plate and the plate; And
And a position compensation unit rotatably coupled to the transfer cart unit to adjust the height of the grinder unit in response to a change in height of the grinder unit from the plate due to wear of the abrasive member. delete The method of claim 1, wherein the position compensation unit,
A second wheel part for supporting on one side of the transport cart unit adjacent to the grinder unit;
A rotating part for rotating the second wheel part up and down with respect to the transfer cart unit such that the second wheel part is in close contact with the surface of the plate; And
And a damper unit for providing a repulsive force against rotation of the pivot unit. The method of claim 3, wherein the damper portion,
It is formed of a spring, the surface polishing apparatus, characterized in that disposed between the transfer unit and the rotating portion. The method of claim 1, wherein the grinder unit,
And an impeller coupled between the polishing member and the driving unit to convert the rotational force generated by the driving unit into wind power to remove foreign substances generated during polishing. delete The surface polishing apparatus of claim 1, further comprising an operation unit coupled to an upper portion of the handle part to control an operation of the driving part. The surface polishing apparatus according to claim 1, wherein the grinder unit is installed at one side of the transfer cart unit.

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