KR20170034705A - Movable flat machining equipment - Google Patents

Movable flat machining equipment Download PDF

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Publication number
KR20170034705A
KR20170034705A KR1020150133356A KR20150133356A KR20170034705A KR 20170034705 A KR20170034705 A KR 20170034705A KR 1020150133356 A KR1020150133356 A KR 1020150133356A KR 20150133356 A KR20150133356 A KR 20150133356A KR 20170034705 A KR20170034705 A KR 20170034705A
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KR
South Korea
Prior art keywords
support rods
support
fine height
fine
grinder
Prior art date
Application number
KR1020150133356A
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Korean (ko)
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KR101774247B1 (en
Inventor
한상현
김종대
김희중
김영준
Original Assignee
국방과학연구소
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Priority to KR1020150133356A priority Critical patent/KR101774247B1/en
Publication of KR20170034705A publication Critical patent/KR20170034705A/en
Application granted granted Critical
Publication of KR101774247B1 publication Critical patent/KR101774247B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/005—Portal grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/13—Surface milling of plates, sheets or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/003—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/182—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings

Abstract

According to the present invention, a mobile planing machine comprises: a Y-shaped frame formed to extend in different directions from a center portion, and having first to third support rods, wherein each of the support rods is configured to be supported and movable on one surface of a structure; and a grinder having a body portion attached to at least one of the first to third support rods, and a head portion rotatably coupled to the body portion, wherein the head portion is disposed to be protruded more than a rear surface of the frame, and the Y-shaped frame is arranged to face one surface of the structure when supported on one surface of the structure.

Description

[0001] MOVABLE FLAT MACHINING EQUIPMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable planar processing machine for repairing a plane of a large structure.

The present invention is characterized in that when it is necessary to precisely repair a plane of a large structure installed on the site, the entire large structure or the large structure is disassembled and disassembled and is not moved to a position where the plane processing machine is installed, The present invention relates to a movable planar processing machine capable of performing maintenance directly at a site where the robot is installed.

As an example of this, a case of using a triple sonic wind tunnel will be described.

The inner side of the sidewall, which constitutes the triple sonic wind tunnel, consists of a finely machined plane to homogenize the flow of fluid into the nozzle. The sidewall of the wind tunnel is formed on a scale having a volume of approximately 11.6 m x 4.5 m x 1 m and corresponds to a large structure having a self weight of 30 tons. Therefore, when the machined surface of the sidewall of the wind tunnel is broken or damaged, it is necessary to disassemble the sidewall of the wind tunnel having the above-mentioned scale and weight and move it to the position of the manufacturer of the plane machine capable of machining the plane of the large structure There was a difficulty.

In addition, it is very difficult for a company having a planing machine capable of processing the plane of a large structure as described above, and it is very difficult to tune the schedule for working with the planing machine. These problems make it difficult to repair wind tunnel quickly.

In addition, there is a difference in quality on the machining plane for each plane to be machined depending on the skill of the operator who processes the plane.

The present invention has been made to solve the above-mentioned problems.

That is, the present invention is a company having a planing machine capable of processing the plane of a large structure in order to process a plane of a large structure such as a sidewall of a wind tunnel, and does not move the entire large structure, The present invention provides a movable planar machining apparatus capable of machining a flat surface so as to obtain a desired flat surface immediately and accurately.

Further, it is desirable to provide a movable planar machining apparatus capable of adjusting a machining depth, that is, a depth of cut.

Also, it is desirable to provide a movable planar processing machine having a reference point and a dial scale for directly indicating the machining depth or the cutting depth as described above.

In addition, it is desirable to provide a movable planar processing machine having a structure capable of reducing weight so as to facilitate handling or movement.

Further, it is desirable to provide a movable planar processing machine which does not damage the plane to be processed by the movable planar processing machine.

It is another object of the present invention to provide a movable planar machining apparatus capable of selecting the roughness of a machining plane by allowing the head portion of the grinder to be replaced with a head portion having various grain sizes.

According to an aspect of the present invention, there is provided a movable planar machining apparatus including a movable planar machining unit that is formed to extend in different directions from a center portion and is supported on one surface of a structure, A Y-shaped frame having a first support bar and a second support bar; And a grinder having a body portion mounted on at least one of the first to third support rods and a head portion rotatably coupled to the body portion, wherein the head portion is disposed so as to protrude from the back surface of the frame And the Y-shaped frame is disposed to face one surface of the structure when the frame is supported on one surface of the structure.

According to another embodiment of the present invention, the first to third support rods are provided with the first to third support portions, respectively, at the ends extending from the center portion, and the first to third support portions And the first to third fine height adjusting units are configured to be adjustable in height, respectively.

According to another embodiment of the present invention, each of the first to third fine height adjustment portions is provided so as to pass through the first to third support rods, respectively, and one end of the through- A fine height adjustment bolt configured to support the third support rod; A fine height adjusting nut provided on the first to third support rods and fixing the fine height adjusting bolts to the first to third support rods; And a bolt fixing nut provided below the first to third support rods so as to correspond to the positions of the fine height adjustment nuts and fixing the fine height adjustment bolts to the first to third support rods Is provided.

According to another embodiment of the present invention, a reference point is displayed on the nut for fine height adjustment to provide height information adjusted by the first through third fine height adjusting units, And a dial scale is displayed on an outer periphery of the through hole.

According to another embodiment of the present invention, a movable planar machining apparatus is provided, wherein a handle is provided on at least two of the first to third support rods.

According to another embodiment of the present invention, the support rod on which the grinder is fixed is provided with one or more holders for holding the body part to be fixed to the support rod.

According to another embodiment of the present invention, the first to third supporting portions are made of a copper alloy.

According to another embodiment of the present invention, there is provided a movable planar machining apparatus characterized in that the grinder is capable of selectively replacing and installing head parts of various sizes.

According to the present invention, when a flat surface of a large structure having a flat surface is broken, the large structure can be disassembled and the large structure can be flat- It enables quick and precise plane machining.

In addition, by adjusting the fine height, it is possible to finely adjust the depth of plane processing or the depth of cut.

In addition, by providing the reference point and the dial scale, it is possible to recognize the machining depth or the depth of cut of the plane to be machined through the movable planar machining apparatus of the present invention before starting the cutting operation.

Further, by providing the handle, the movable planar processing machine of the present invention can be easily moved, and the working radius can be widened.

Further, by providing the holder, it is easy to attach and detach the grinder constituting the movable planar processing machine of the present invention.

In addition, the portion of the movable planar machining apparatus according to the present invention, which is in contact with the plane to be machined, is made of a material having a hardness lower than that of the machining plane, thereby minimizing damage to the machining plane.

Further, since the head portion of the grinder constituting the movable planar machining apparatus of the present invention can be replaced with the head portion having various grain sizes, it is possible to allow the operator to process the flat surface with the desired roughness.

1 is a perspective view showing an embodiment of a movable planar processing machine of the present invention.
2A is an enlarged view of the fine height adjustment unit shown in FIG.
FIG. 2B is a conceptual diagram for explaining a height adjustment using the fine height adjustment unit shown in FIG. 2A.
FIG. 3 is a conceptual diagram for explaining a state in which the movable planar processing machine shown in FIG. 1 is processing a surface of a large structure.

Hereinafter, a movable planer for repairing a large-scale planar structure according to the present invention will be described in detail with reference to the accompanying drawings.

As used herein, the singular forms " a " and " an " are to be construed as including plural referents unless the context clearly dictates otherwise.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical meanings and concepts of the present invention.

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

1 is a perspective view showing an embodiment of a movable planar processing machine 100 of the present invention.

A movable planar machining apparatus 100 according to an embodiment of the present invention includes a Y-shaped frame 110 and a grinder 120.

The Y-shaped frame 110 has first to third support rods 111 to 113 formed to extend in different directions from a central portion and configured to be supported on one surface of the structure, respectively.

The grinder 120 further includes a body 121 mounted on at least one support bar of the first through third support rods 111 through 113 and a head portion rotatably coupled to the body 121 122).

The head part 122 protrudes from the back surface of the Y-shaped frame 110 so that when the Y-shaped frame 110 is supported on the processing plane 10 of the structure, And is disposed to face the plane 10.

The movable planar processing machine 100 of the present invention is used for repairing a plane of a large structure. The movable planar processing machine 100 has a Y-shaped frame 110, which is the most efficient structure to reduce its own weight, and adopts a structure in which the commercial grinder 120 is fixed to the Y-shaped frame have.

The Y-shape corresponds to an efficient shape that can minimize the weight of the mobile planer 100 itself and can evenly be supported on the plane.

In addition, the first to third support rods 111 to 113 constituting the Y-shaped frame 110 may further include the hollow portion 115 to further reduce the weight. Accordingly, the weight of the entire movable planer 100 can be reduced while maintaining the strength of the Y-shaped frame 110 itself.

As shown in FIG. 1, the hollow 115 may have a circular shape or an elliptical shape, and may have a rectangular or other various shapes. However, it is preferable that the shape of the hollow portion 115 is designed not to lower the strength of the first to third support rods 111 to 113 themselves constituting the Y-shaped frame 110 .

Further, the shapes and structures of the Y-shaped frame 110 and the grinder 120 are not to be construed as limited only to the structures described in this specification. For example, it should be noted that the adoption of the Y-shaped frame 110 is only an embodiment of the present invention.

Therefore, it should be understood that the frame 110 constituting the movable planar processing machine does not necessarily have to be Y-shaped, but X-shaped and various other shapes can also be employed.

According to another embodiment of the present invention, the Y-shaped frame 110 is mounted on one side 10 of the large structure on the ends of the first to third support rods 111 to 113 extending from the center portion, The first to third supporting portions 131 to 133 are provided.

The first to third supporting portions 131 to 133 may have a simple supporting structure. However, according to another embodiment of the present invention, the first to third support portions 131 to 133 may be constituted by first to third fine height adjustment portions that can be finely adjusted in height through a rotation operation of a shaft or a bolt have.

The operator can adjust the height of the first to third support rods 111 to 113 through the structure of the first to third fine height adjustment portions and finally adjust the height of the head portion 122 of the grinder It is possible to adjust the machining depth or cutting depth of the large structure plane 10. [

According to the present invention, it is not necessary to disassemble or move the large structure in order to perform the maintenance work of the flat surface 10 when the flat surface 10 of the large structure, which has a great difficulty in disassembly and movement, is damaged or damaged. That is, it is possible to directly process the flat surface 10 at a site where a large structure is installed.

Accordingly, it is possible to remarkably shorten the time required to disassemble or move the large structure, which was required in the stage of preparing the work for repairing the flat surface 10 of the large structure in the past, Saving effect can be obtained.

Referring to FIG. 1, first to third supporting portions 131 to 133 are respectively provided at ends of the first to third supporting rods 111 to 113 extending from the center portion.

The first to third supporting portions 131 to 133 may be provided with a fine height adjusting nut 201, a bolt fixing nut 203 and a fine height adjusting bolt 205.

The fine-height adjusting bolt 205 is installed to penetrate the first to third support rods 111 to 113, respectively, and one end of the through-hole is in contact with the first to third support rods 111 to 113, .

The fine height adjustment nut 201 is provided on the first to third support rods 111 to 113 and the fine height adjustment bolt 205 is fixed to the first to third support rods 111 to 113 And serves to adjust the height of the fine height adjusting bolt 205. [

The bolt fixing nut 203 is provided under the first to third support rods 111 to 113 to fix the fine height adjustment bolt 205 to the first to third support rods 111 to 113 . That is, the bolt fixing nut 203 and the fine height adjusting nut 201 are installed to face each other with the first to third supporting rods 111 to 113 interposed therebetween.

Each of the first to third supports 131 to 133 is provided with one bolt and two nuts.

FIG. 2B is a conceptual diagram for explaining a height adjustment using the fine height adjustment unit shown in FIG. 2A.

First, the bolt fixing nut 203 is sufficiently loosened. Then, the fine-height adjusting bolt 205 is fixed as it is, and the fine-height adjusting nut 201 is turned to adjust the height of each of the first to third supporting portions 131 to 133. Finally, the bolts 205 and the fine height adjusting nuts 201 are fixed to the first to third support rods 111 to 113 by turning the bolt fastening nuts 203 in the opposite direction to the loosening of the bolt fastening nuts 203 do.

As shown in FIG. 2A, the upper portion of the fine height adjusting bolt 205 is partially cut to have a cutting surface. By using a tool designed to cover the same shape as the shape of the upper portion including the cut surface of the fine height adjusting bolt 205, the fine height adjusting bolt 205 is restrained so as not to rotate, Only the height adjusting nut 201 can be individually rotated.

When the fine height adjustment unit is operated, the height of the first to third support units 131 to 133 is adjusted to a desired level by the operator, and accordingly, the height of the head unit 122 of the grinder 120 is also adjusted The machining depth or cutting depth of the machining plane of the structure is adjusted.

2A is an enlarged view of the fine height adjustment unit shown in FIG.

When the nut 201 for fine height adjustment is rotated in the clockwise direction, the height of the support rod decreases as the portion protruding in the direction of the work plane 10 of the large structure increases. On the other hand, when the fine height adjusting nut 201 is rotated counterclockwise, the portion of the large structure projecting in the direction of the working plane 10 is decreased, and the height of the support rod is increased.

When the height of the support bar is increased, the height of the head portion 122 of the grinder fixed to the support bar is also increased. On the other hand, when the height of the support bar is lowered, the height of the head part 122 of the grinder 120 fixed to the support bar is also lowered accordingly.

If the height of the head portion 122 of the grinder 120 is increased, the depth of cutting or machining of the flat surface 10 of the large structure becomes shallow, and the amount of cutting or machining becomes small. On the contrary, when the height of the head portion 122 of the grinder 120 is lowered, the depth of the cutting or cutting of the plane 10 of the large structure becomes deeper, and the amount of cutting or machining becomes larger.

According to another embodiment of the present invention, as shown in FIG. 2A, a reference point 204 is provided on the fine height adjusting nut 201 to provide adjusted height information of the first through third fine height adjusting portions And a dial scale 202 may be displayed on the outer circumference of the through holes provided in the first to third supporting portions 131 to 133. [

The worker can easily and easily grasp the height of each supporting portion through the reference point 204 and the dial scale 202. By confirming the height information of the first to third fine height adjusting units, the cutting depth of the movable planar processing machine 100 can be easily grasped.

The method of adjusting the height of the first to third fine height adjusting units when the reference point 204 and the dial scale 202 are provided in the first to third supporting units 131 to 133 will be described in more detail.

First, the bolt fixing nut 203 is sufficiently loosened. Then, the fine-height adjusting bolt 205 is fixed as it is, and the fine-height adjusting nut 201 is turned to adjust the height of each of the first to third supporting portions 131 to 133. At this time, the height adjusted through the reference point 204 and the dial scale 202 can be immediately confirmed. Therefore, the operator can rotate the fine height adjusting nut 201 by a desired height. Finally, the bolts 205 and the fine height adjusting nuts 201 are fixed to the first to third support rods 111 to 113 by turning the bolt fastening nuts 203 in the opposite direction to the loosening of the bolt fastening nuts 203 do.

The reference point 204 and the dial scale 202 are respectively shown on the outer periphery of the through hole provided in the fine height adjusting nut 201 and the first to third supporting portions 131 to 133 as shown in FIG. However, this is only an embodiment of the present invention, and it can be displayed at various other positions as long as the cutting depth can be easily grasped.

1, a movable planar machining apparatus 100 having a handle 140 on a second support rod and a third support rod 112 is shown.

Since the handle 140 is provided on the movable planar processing machine 100 of the present invention, the operator can easily handle the movable planar processing machine 100 and can easily handle the movable planar processing machine 100 on the working plane of the large structure during processing. Can be adjusted easily.

However, this is only an embodiment of the present invention, and the handle 140 may be provided on at least two of the first to third support rods 111 to 113. The arrangement of the handle 140 can be made efficient in consideration of the center of gravity of the movable planar processing machine 100 and handling. By providing such a handle 140, it is possible to adjust the position of the movable planar processing machine 100 on the working plane 10 of the large structure during machining.

1, a movable planar machining apparatus 100 having two holders 150 on a first support rod 111 is shown.

The movable planar machining apparatus 100 of the present invention includes the holder 150 so that the grinder 120 can be fixed to the support rod. The holder 150 can cover the body 121 of the grinder 120 and is designed to be fixed to the support bar.

The fixing position of the holder 150 may be changed depending on where the body 121 of the grinder 120 is fixed. Although the number of the holders 150 is shown according to FIG. 1, only one can be employed as long as the grinder 120 can be fixed without shaking. Of course, more than two holders 150 may be employed.

The use of the movable planar machining apparatus 100 employing the above-described structure eliminates the need for fixing (clamping) the large structure and the movable planar processing apparatus of the present invention, so that all the horizontal and vertical planes 10 on the large structure The work of machining the surface while moving freely becomes easy.

Hereinafter, another embodiment of the present invention will be described in more detail with reference to FIG.

Fig. 3 is a conceptual diagram for explaining how the movable planar processing machine 100 shown in Fig. 1 processes a plane 10 of a large structure.

As described above, the mobile planar machining apparatus 100 of the present invention facilitates the work of machining planes while moving on a vertical or horizontal plane 10 on a large structure which can not be moved or disassembled. To this end, the movable planar processing machine 100 has a structure in which the first to third supporting portions 131 to 133 are moved in contact with each other on the plane of the large structure during operation.

The fact that the first to third supporting portions 131 to 133 of the movable planar processing machine 100 can move while being in contact with the plane 10 of the large structure during the process of machining the plane 10, Is a problem that can be easily considered.

In order to prevent this, according to another embodiment of the present invention, the first to third supporting portions 131 to 133 are made of a copper alloy material, so that they can be planarized while minimizing damage to existing planes . Of course, in this case, the material of the working plane 10 should be made of a material having a hardness higher than that of the fine height adjusting unit, so that damage to the working plane can be prevented.

3 is a perspective view showing a state where a large structure plane 10 is made of a rolled steel material for general structure and the first to third supporting portions 131 to 133 of the movable type planer 100 are made of a copper alloy, Is carried out.

The alloy number of the rolled steel for general structure used in the study of the present invention is SS400, the hardness is 160 HB Brinell Hardness, the alloy number of the copper alloy is C26xx series, the hardness is 120 HV Vickers Hardness, to be.

It should be noted, however, that this is only an embodiment of the present invention, and the present invention is not limited to this material.

The hardness of the materials of the first to third supporting portions 131 to 133 is smaller than that of the planar material of the large structure and the larger the difference is, the more the object of minimizing the damage of the working plane of the present invention can be satisfied.

The movable planar machining apparatus 100 described above is not limited to the configurations and the methods of the embodiments described above, but the embodiments may be configured such that all or some of the embodiments are selectively combined so that various modifications can be made. have.

For example, various operations such as milling, grinding, polishing and the like can be performed, since it is possible to manufacture tools of various shapes or to selectively install commercial tools instead of the grinder used in the embodiments described above according to the user's demand. This allows the operator to select and process the surface of a large structure with the desired illumination.

100 movable planar processing machine 132 second supporting portion
110 Y-shaped frame 133 Third supporting portion
111 first support rod 140 handle
112 second support rod 150 holder
113 Third support rod 201 Fine height adjustment nut
115 hollow section 202 dial scale
120 Grinder 203 Bolt fixing nut
121 Body part 204 Reference point
122 Head part 205 Fine height adjustment bolt
131 first support portion

Claims (8)

A Y-shaped frame formed to extend in different directions from the center and each having first to third support rods supported on one surface of the structure; And
A grinder having a body mounted on at least one support bar of the first through third support rods and a head rotatably coupled to the body,
Wherein the head portion is disposed so as to protrude from the back surface of the Y-shaped frame, and the Y-shaped frame is disposed to face one surface of the structure when supported on one surface of the structure. The method according to claim 1,
The first to third support rods are respectively provided with the first to third support portions at the ends extending from the center portion,
Wherein the first to third support portions are provided with first to third fine height adjustment portions each of which is configured to be adjustable in height in the direction of the structure through a rotation operation. 3. The method of claim 2,
Each of the first through third fine height adjusting units may include:
A fine height adjustment bolt which is installed to penetrate the first to third support rods respectively and the one end of which penetrates is in contact with the structure to support the first to third support rods;
A fine height adjusting nut provided on the first to third support rods and fixing the fine height adjusting bolts to the first to third support rods; And
And a bolt fixing nut provided below the first to third support rods and fixing the fine height adjusting bolt to the first to third support rods. The method of claim 3,
And a height adjustment unit for adjusting the height of the first and second micro-
A reference point is displayed on the nut for fine height adjustment,
And dial scales are displayed on the outer peripheries of the through holes provided in the first to third support portions. 5. The method according to any one of claims 1 to 4,
Wherein a handle is provided on at least two of the first to third support rods. 5. The method according to any one of claims 1 to 4,
Wherein the supporting rod to which the grinder is fixed is provided with one or more holders for holding the body and fixing the body to the supporting rod. 5. The method according to any one of claims 1 to 4,
Wherein the first to third supporting portions are made of a copper alloy. 5. The method according to any one of claims 1 to 4,
Wherein the grinder is capable of selectively replacing and installing a head part having various particle sizes.
KR1020150133356A 2015-09-21 2015-09-21 Movable flat machining equipment KR101774247B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218249A1 (en) 2017-03-20 2018-09-20 Hyundai Motor Company System and method for detecting the position of a vehicle
CN109176197A (en) * 2018-10-26 2019-01-11 戴嘉诚 A kind of construction wall steel wire tenderizer
CN111390682A (en) * 2020-06-02 2020-07-10 上海建工四建集团有限公司 Portable wall surface grinding machine and using method thereof
CN113458942A (en) * 2021-07-08 2021-10-01 徐风堂 Portable welding rod tail grinding device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6188055B2 (en) * 2013-03-21 2017-08-30 三菱重工業株式会社 Indentation amount adjusting device and polishing apparatus provided with the indentation amount adjusting device
KR101500580B1 (en) * 2013-12-20 2015-03-10 대우조선해양 주식회사 Scaffold piece cutting machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218249A1 (en) 2017-03-20 2018-09-20 Hyundai Motor Company System and method for detecting the position of a vehicle
CN109176197A (en) * 2018-10-26 2019-01-11 戴嘉诚 A kind of construction wall steel wire tenderizer
CN111390682A (en) * 2020-06-02 2020-07-10 上海建工四建集团有限公司 Portable wall surface grinding machine and using method thereof
CN113458942A (en) * 2021-07-08 2021-10-01 徐风堂 Portable welding rod tail grinding device

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