JPH0737807Y2 - Flat plate grinding machine - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is intended to remove burrs, black scales, paints, etc. generated by perforating both ends of a plate member which is a member of a beam or a pillar of an iron structure such as a building or a bridge. The present invention relates to a grinding device for grinding.

[0002]

2. Description of the Related Art A large number of I-shaped beams, box-shaped beams, I-shaped columns, box-shaped columns and the like are used for iron structures. I-shaped beam with small cross section,
I-shaped steel made by drawing is used for the I-shaped pillar,
I-shaped and box-shaped beams and columns used for large iron structures are manufactured by welding long flat plate members by welding. The I-shaped beam or the like manufactured by welding the long flat plate members to each other as described above is formed with a bolt hole for engagement with a member connected to both ends thereof, for example, a bracket or the like, and burrs generated thereby. It is necessary to remove the black skin in the predetermined range of the tip part in order to improve the skin texture. Conventionally, the deburring of the perforated portion and the grinding for removing the black skin at both ends have been performed by a hand grinder, so that there is a drawback that it takes time and labor and work efficiency is poor.

Therefore, the inventors of the present invention have carried out a series of processes including punching, deburring, and black skin removal at both ends of the flange of an I-shaped beam, which is one of long plate members that become members such as beams and columns. We proposed a machining method that can perform continuous and automatic.

The method will be described with reference to the example shown in FIG. 7. A long plate member 1 which is perforated at both ends for deburring and black skin removal is held horizontally and is conveyed by a conveyor 2 such as a roller conveyor. When the material is conveyed in the longitudinal direction of the member and reaches a predetermined position for perforation, the conveyance is automatically stopped, and the center of the member 1 and the center line of the perforation device 4 are aligned by the clamp and centering jig. Clamping so that they are parallel to each other, automatically punching at a predetermined punching position, and after completion of punching, the member 1 is processed by the conveyor 5 at a position where the grinding device 6 can remove the burr and remove the black skin. It is conveyed up to and automatically stopped, and it is automatically ground at the same time at both upper and lower ends to remove burrs and remove black skin.

In the above-described grinding for deburring and black skin removal, first, the grinding tool is moved along the end edge of the member in the width direction of the member, the grinding width of the grinding tool is ground, and the end in the width direction is cut. When it detects that it has reached the section with a proximity switch etc., it conveys the plate member in the longitudinal direction by an amount corresponding to the grinding width of the grinding tool, stops it, moves the grinding tool in the width direction of the plate member, and repeats grinding, Transported only the number of times according to the length of the end to be ground,
Grinding is repeated to complete the required grinding range.

An example of a grinding machine suitable for use in the above processing method will be described below with reference to the drawings.

8 and 9 are a front view and a side view, respectively, of a grinding apparatus 100 suitable for the above purpose. Grinding machine 100
Is an I-shaped column 1 that stands upright on both sides of the workpiece transfer path.
01 and a horizontal member 102 that connects them and that is horizontally extended and that is made of a pair of I-shaped members that also serves as a guide for a cylinder base 105 that mounts an air cylinder 104 that presses the grinding head 103 against the grinding surface of the workpiece. The frame structure constituted by the gate, the grinding head 103 guided by the upper and lower two horizontal members 102, the above-mentioned air cylinder, and the cylinder base 105 and the cylinder base 105 for holding the same.
The ball nuts 106 fixed to the
Ball screw 107 rotatably supported on 01
And a drive motor 108 that moves the grinding head 103 left and right by rotating the same.

A horizontal member 10 made of two parallel I-shaped members
2, the grinding head 103, the ball nut 106, the ball screw 107, and the motor 108 are provided in two sets up and down with the web of the workpiece sandwiched therebetween, and each set can be independently driven. A grinding tool (descaler) 109 is attached downward to the upper grinding head 103, and the lower grinding head 10 is attached.
3 has exactly the same structure except that the grinding tool is attached upward. Therefore, FIG. 9 shows the upper drive motor 108, the lower grinding head 103, the holding cylinder 104 thereof, and the like.

A slider 110 is attached to the rear surface of the cylinder base 105 to which the air cylinder 104 is fixed, and each I of the horizontal member 102 made of a pair of I-shaped members.
Slide rail 11 mounted on the outer surface of the flange of the mold material
It is in sliding contact with 1.

Therefore, by rotating the motor 108 in either direction, the ball screw 107 rotates, and together with the ball nut 106 screwed into the ball screw 107,
The air cylinder 104 and the grinding head 103 move in either the left or right direction, and the slider 110 on the back surface of the cylinder base 105 slides on the slide rail 111.

The grinding tool 109 is rotationally driven by a motor (see 103 'in FIG. 3) not shown in FIGS.
Aperture burr and black scale (scale) are brought into contact with the surface to be flat-plate ground by an appropriate pressing force by the air cylinder 104.
To remove.

However, it is inevitable that a long flat plate member having a large area is in a wavy state more or less. In that case, the grinding surface of the surface grinding tool attached to the grinding head 103 directly connected to the piston of the cylinder fixed to the cylinder base 105 that moves in sliding contact with the pair of slide rails 111 is one-sided contact with the wavy portion. However, the smooth rotation of the grinding tool is hindered or the flat plate member is not uniformly ground.

[0013]

SUMMARY OF THE INVENTION In consideration of the above problems of the grinding apparatus having the above-mentioned structure, which has been proposed by the inventors of the present invention, the present invention is intended for the case where the long flat plate member to be ground has a corrugation. However, it is an object of the present invention to provide a grinding device that can grind uniformly without causing the grinding surface of a grinding tool to come into contact with the corrugated surface following the corrugation and hit the corrugated surface.

[0014]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is a grinding device for removing burrs from both end perforations of a long flat plate member and removing black skin, paint, etc. A guide member extending horizontally between columns provided on both sides in the width direction of a plate member having a grinding surface, a horizontal moving member that slides on the guide member and moves in the horizontal direction by a driving unit, and the horizontal moving member An air cylinder carried by the air cylinder, and a grinding head fixed to a piston of the air cylinder and carrying a flat surface rotary grinding tool. The grinding head is arranged to press the grinding surface of the grinding tool against the surface to be ground by the air cylinder. In a grinding device for urging the horizontal moving member to slide on the guide member by the driving means to perform grinding, a cylinder holding plate to which the air cylinder is integrally mounted is provided. The cylinder holding plate is elastically supported by the horizontal moving member by interposing compression springs and loose fitting bolts between several positions on the plate and corresponding positions of the horizontal moving member. .

[0015]

With the above construction, when the ground portion of the flat plate to be ground is in a wavy state, the grinding surface of the grinding tool is urged to be pressed against the surface of the flat plate by the air cylinder. Is pressed against the flat plate, and a larger repulsive force is applied from the surface to be ground to the part where the grinding surface of the grinding tool is in strong contact with the surface to be ground, causing a moment to rotate the cylinder holding plate. , Part of the compression spring is compressed and the cylinder holding plate rotates, so that the grinding surface of the grinding tool always follows the wavy surface of the flat plate to be ground and makes uniform contact. Deburring and black skin removal are performed.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 are a front view and a side view showing the overall construction of an embodiment in which the present invention is applied to the grinding machine explained in FIGS. 8 and 9.

FIG. 3 shows the grinding head 103, the air cylinder 104, and the slide rail 11 of the grinding apparatus of this embodiment.
It is a figure which shows the structure of 1 vicinity. The same members as those in FIGS. 8 and 9 are designated by the same reference numerals, and different points will be emphasized in the description.

In this apparatus, the slider 110 is not attached to the cylinder base 105, but is attached to the rear surface of the slide base 114 elastically attached to the cylinder base 105 via the loose fitting bolt 112 and the compression spring 113. And is in sliding contact with the slide rail 111 attached to the horizontal member 102. The slide base 114 in FIG. 4,
FIG. 5 shows a front view of the cylinder base 105, and FIG. 6 shows a structure of a connecting portion between the slide base 114 and the cylinder base 105. Slide base 114 and cylinder base 10
5, the cylinder base 105 is provided with a loose fitting hole 115, and the slide base 114 is provided with a screw hole 1.
16 are mounted on the opposite surface in the opened position of these holes, the spot facing 117 and 118 is provided, after the compression spring 119 is fitted in a compressed state these spot facing, no The head bolt 112 has one end screwed into the screw hole 116 of the slide base 114, and the other end is screwed into the cylinder base 105.
After inserting the loose fitting hole 115 of the cylinder base 1 to the nut 120, a constant tension is applied to the compression spring 119 so that the cylinder base 1
05 and the slide base 114 are attached.

As shown in FIG. 4, the slide base 114 is further provided with a slider mounting hole 121 and a ball nut mounting bolt hole 122. Also, as shown in FIG.
A mounting bolt hole 123 for the cylinder 104 is provided in the cylinder base 105.

The configuration other than the above is the same as the configuration described with reference to FIGS.

Since this apparatus has the above-described structure, when the grinding surface of the workpiece to be ground is wavy, the air cylinder 104 causes the grinding head 103 to move, and the grinding surface of the grinding tool becomes the surface to be ground. When biased so as to be pressed, a larger repulsive force acts from the surface to be ground on the portion where the grinding surface of the grinding tool is in strong contact with the surface to be ground, and the compression spring 113 is compressed and automatically compressed. Further, the grinding surface of the grinding tool is inclined together with the cylinder base 105 so as to follow the wavy surface to be ground, and evenly deburred by contacting the surface to be ground with a uniform pressing force.
Black skin can be removed.

[0023]

As described above, according to the present invention, even when the flat plate member whose end is to be ground is wavy, it is possible to automatically perform uniform grinding, and it is necessary to perform manual correction or the like. This is effective in reducing cost and improving processing accuracy.

[Brief description of drawings]

FIG. 1 is a front view of a flat plate grinding machine according to an embodiment of the present invention.

FIG. 2 is a side view of the grinding device.

FIG. 3 is an enlarged front view showing the configuration of the main part of the apparatus.

FIG. 4 is a front view of the slide base.

FIG. 5 is a front view of the cylinder base.

FIG. 6 is a cross-sectional view showing a combined structure of the slide base and the cylinder base.

FIG. 7 is a perspective view showing a configuration of a flat plate punching and grinding method previously proposed by the present inventors.

FIG. 8 is a front view of an example of a grinding device used in the method.

FIG. 9 is a side view of the grinding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat plate member 2 Conveyor 100 Grinding machine 101 Column 102 Horizontal member 103 Grinding head 104 Air cylinder 105 Cylinder base (cylinder holding plate) 108 Driving means 109 Grinding tool 111 Slide rail (guide member) 112 Free fitting bolt 113 Compression spring

Claims (1)

[Scope of utility model registration request] 1. A grinding device for deburring both end perforations of a long flat plate member and for removing black skin, paint, etc., comprising pillars provided on both sides in the width direction of a plate member having a surface to be ground. A guide member extending horizontally between the guide member, a horizontal moving member that slides on the guide member and moves in the horizontal direction by a driving unit, an air cylinder carried by the horizontal moving member, and a plane fixed to a piston of the air cylinder. A grinding head carrying a rotary grinding tool is provided, and the air cylinder urges the grinding head in a direction of pressing the grinding surface of the grinding tool against the surface to be ground, and the driving means guides the horizontal moving member. In a grinding device that slides on a member to perform grinding, a cylinder holding plate to which the above air cylinder is integrally mounted is provided, and between several positions on the cylinder holding plate and corresponding positions of the horizontal moving member. Grinding device respectively by interposing a compression spring and a loosely fitting bolt, characterized in that the resiliently supported in a horizontal moving member the cylinder holding plate.