JPS61152314A - Cutting device for thin plate - Google Patents

Abstract

PURPOSE:To form a groove which is correct from edge to edge at the bent position of a thin plate by pressing the thin plate onto a table by a guide roller and cutting the groove immediately by a cutting tool, thus preventing the floating-up of the thin plate. CONSTITUTION:A thin plate 46 on the table 2 of a wellknown planing machine is pressed onto the table by a roller 32, and a V-shaped groove is formed onto the thin plate by attaching a cutter 26 onto the plate 46 immediately after the above-described pressing by the roller 32, shifting the table. In this case, the table 2 is moved in reciprocation, and a cutting tool 26 performs cutting work in reciprocation through the turn by 180 deg.. Even on any side for the cutting tool 26, the roller 32 precedes, and the cutting efficiency is improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention involves forming grooves with a narrow V-shaped cross section to serve as creases in a thin decorative metal plate such as a stainless steel plate that surrounds the surface of a pillar of a building. This invention relates to a cutting device for thin plates formed by cutting.

[Conventional technology]

A planing machine (brainer) is generally used as a machine tool for cutting large metal materials.

This known planing machine has a reciprocating table that holds a workpiece on the upper surface and moves horizontally back and forth, a saddle that is attached to a cross rail that is located on the reciprocating table so that it can move horizontally, and a saddle that can be moved up and down on this saddle. The main part is a tool stand attached to the reciprocating table, and the workpiece fixed on the reciprocating table is reciprocated together with the reciprocating table, and a cutting tool attached to the tool stand cuts into the workpiece to perform cutting.

[Problem that the invention seeks to solve]

Conventional planing machines such as those described above are intended to cut relatively thick materials, and therefore it is very difficult to cut thin materials.

That is, when attempting to form a groove on the surface of a thin material by cutting, if the tip of the cutting tool hits the edge of the thin material, this edge will curl up, making cutting impossible.

The object of the present invention is to provide a cutting device that can cut even thin plates such as those described above.

[First Means to Solve the Problems] In order to solve the above problems, the present invention provides a tool mounting member that is mounted on a tool stand attached to the cross rail of a planing machine, and that is arranged to move up and down and around the vertical axis. A cutting tool that cuts the upper surface of a thin plate fixed on the table to form a groove such as a V-shaped cross section is eccentrically fixed to the lower end of the tool mounting member so that it can be rotated. A guide roller that presses the top surface of the thin plate just before it is cut by the cutting tool is attached to a placket fixed to the lower end of a mounting rod that can be raised and lowered but is not rotatable. The tool stand is mounted so as to be orthogonal to the center of rotation of the tool mounting member, and the tool stand is provided with a turning means for rotating the tool mounting member by 180 degrees to perform reciprocating cutting, and a lifting means for raising and lowering the tool mounting member. It is something.

[Effect]

This invention has the above configuration, and the thin plate placed on the reciprocating table is fixed by a plurality of clamp fittings provided on one side of the reciprocating table.

Next, the cutting tool at the lower end of the cutting tool mounting member attached to the tool stand is directed toward the end of the thin plate and the reciprocating table is started.The guide row 2 first rides on the thin plate and presses the thin plate onto the table, and then the cutting tool is the surface of the thin plate (this is cut and grooves are cut and formed).

In this way, the cutting tool creates a groove along the entire length of the thin plate, and when the cutting tool comes out outside the edge of the thin plate and the table stops, the turning member works and the cutting tool mounting member rises slightly, and the turning means works and the cutting tool mounting member Rotate 1800 times.

Next, the tool mounting member descends, and the tool rest descends by a predetermined depth of cut.The table then begins to move backward, causing the tool to further cut into the groove formed on the thin plate, and the return stroke of cutting begins. .

In this way, the reciprocating table repeats forward and backward movements to perform reciprocating cutting, and when a groove of a predetermined depth is formed, the tool stand is raised, the saddle is moved along the cross rail, and the next position is reached. Cutting begins.

〔Example〕

Next, embodiments of the present invention will be described based on the accompanying drawings.

FIGS. 5 and 6 show the outline of a planing machine, in which 1 is a bed, and 2 is a reciprocating table that moves forward and backward along a guide rail on the top of the bed. 3 is a column erected on the side of the bed 1, and a cross rail 4 located on the table 2 is attached to this column 3.

Reference numeral 8 denotes a left saddle which is attached to the cross rail 4 so as to be freely traverseable, and this saddle 8 is driven by a driving means 9 consisting of a motor, a speed reducer, etc., and is moved by a feed gear L:1o.

Reference numeral 11 denotes a tool stand attached to the saddle 8 so that it can be raised and lowered, and a guide tube 14 at the front of this tool stand 11 has a tool mounting member 12 that can be raised and lowered and rotated, and a mounting rod that can be raised and lowered but does not rotate. 13 are provided.

At the upper end of the tool mounting member 12, there is a rod 1 as shown in FIG.
5 is fixed, and an elevating means 16 such as a hydraulic cylinder for elevating the rod 15 is fixed on the guide cylinder 14. Further, a turning means 17 such as a hydraulic port to a tarry actuator is fixed on the lifting means 16, and the T rod 15 is reciprocated within a range of 180 degrees. Let them do it.

As shown in FIG. 1, a receiving ring 20 is fixed on the receiving portion 19 on the inner periphery of the guide cylinder 14, and a 1-series stop ring 22 is fixed on the lower part of the collar 21 at the upper end of the cutting tool attachment member 12.

Above, the upper side of the receiving ring 20 (inverted trapezoidal recesses 24 as shown in FIG. 18
Two holes are provided at 0 degrees apart, and by engaging and disengaging the concave portion 24 and the convex portion 25, the cutting tool attachment portion 12 is configured to accurately turn 180 degrees.

In addition, at the lower end of the bite mounting member 12, an appropriate mounting entertainment 2 is attached.
7 is used to fix the cutting tool 26, its position is eccentric with respect to the center of rotation of the tool mounting member 12, the direction of the cutting edge is directed toward the center of rotation, and the concave portion 24 and the convex portion 25
When the cutting tool 26 is engaged, the cutting tool 26 is made to face in the direction in which the cutting tool 26 moves.

At the rear of the tool stand 11, there is a vertical guide hole 3 as shown in Fig. 1.
0, and the lifting rod 13 is fitted into the guide hole 30 so as to be able to move up and down, and cannot be rotated by a slide key (not shown).

A bracket 31 is fixed to the lower end of this lifting rod 13, as shown in FIG.
Install the guide roller 32 on the side of the tip of 1.

The middle part of the lifting rod 13 (this is the large diameter part 3 as shown in FIG.
5 is provided, and a spring 37 is provided between the large diameter portion 35 and a receiving tube 36 fixed to the lower end of the guide hole 30 to push up the lifting rod 13.

In addition, the upper part of the guide hole 30 (this is where the cylinder 38 is fitted,
The mounting rod 13 is fitted into the lower end of the cylinder 38 while keeping it liquid-tight, and the upper small diameter portion 39 of the mounting rod 13 penetrates the upper member 40 of the cylinder 38 while keeping it liquid-tight.

A plurality of disc springs 41 are loosely fitted into the upper end of the small diameter part 39, and the disc springs 41 are received by a nut 42 screwed into the male thread at the upper end of the small diameter part 39, thereby limiting the lower limit of the mounting rod 13.

The upper member 40 is provided with an oil hole 43, and when an oil supply and drain pipe (not shown) is connected to this oil hole 43 and pressurized oil is supplied into the cylinder 38, the mounting rod 13 compresses the spring 37 and descends. ,
When the pressure oil in the cylinder 38 is released, the spring 37 causes the mounting rod 13 to rise. However, compressed air may be used instead of pressure oil.

In the case of the embodiment, as shown in FIG.
The angle θ' of the outer circumferential portion of is assumed to be 120°, but this is, of course, just an example.

In addition, in the embodiment, as shown in FIG. 5, the guide tubes 14 are arranged in parallel on the left and right, and the cutting tools 31 and guide rollers 32 are arranged on the left and right, and are raised and lowered separately, but there is only one guide tube 14. In some cases, there may be three or more.

In addition, 44 in the figure is a feed screw (
A drive means 45 (not shown) is a drive means for a reciprocating table advance/retreat mechanism (IA not shown).

Next, the operation of the above embodiment will be explained.

First, a thin plate 46 such as a stainless steel plate is placed on the table 2, and after positioning it with an appropriate positioning piece, a plurality of clamp fittings 47 provided on one side of the table 2 are placed.
to fix it on the table 2.

Next, as shown in Fig. 1, lower the tool mounting member 12,
A state in which the concave portion 25 and the convex portion 26 are engaged, the cutting edge of the cutting tool 26 is directed toward the thin plate 46 on the table 2, pressure oil is supplied into the cylinder 38 from the oil hole 43, and the mounting rod 13 is lowered to the lower limit. When the driving means 45 is started, the table 2 starts to move back and forth, and the guide rollers 32 move towards the end plate 46 as shown in FIG.
7a-Table z It is pressed onto the thin plate 46 and at the same time, the cutting tool 26 cuts immediately after it to form the groove 48.

When a suitable detector detects that the cutting tool 26 has passed one end of the thin plate 46, the lifting means 16 operates to raise the rod 15, and at the same time, the rotary actuator 17 is activated to disengage the concave portion 24 and the convex portion 25. working rod 15
180° together with the tool mounting member 12, turn the tool 26 in the opposite direction as shown by the chain lines in FIGS. 25 engages to fix the cutting tool 26.

Under the above conditions, after the driving means 44 lowers the tool rest 11 slightly and lowers the cutting tool 26, the table 2 starts to move backwards and cuts the previously formed groove 48 even deeper. U32 takes the lead.

By repeating the above action, the table 2 reciprocates, and the cutting tool 31 reciprocates by 180° as shown by the arrow in FIG. Then, the roller 32 is raised, the driving means 9 is activated, and the saddle 8 is moved laterally along the cross rail 4 by a predetermined distance to cut the next groove.

〔effect〕

As described above, this invention enables the formation of precise grooves in a thin plate using a known planing machine, which makes it extremely easy and accurate to bend a stainless steel plate or the like at right angles. Can be bent. During cutting, the guide roller takes the lead and presses the thin plate onto the table, and the cutting tool cuts immediately after that, so there is no risk of the thin plate floating up, and a precise groove is created from end to end. is formed.

Furthermore, since the cutting tool can rotate 180° and reciprocating cutting can be performed, cutting efficiency is high, and there are unique effects such as the guide roller leading the cutting tool no matter which direction the cutting tool is oriented.

[Brief explanation of the drawing]

Fig. 1 is an enlarged longitudinal sectional side view showing the main parts of this invention;
The figure is a vertical 1TR side view further enlarging the lower part of the same as above.
The figure is a cross-sectional plan view of the same as above, Fig. 4 is an enlarged longitudinal sectional front view of the retaining part, Fig. 5 is a front view showing the whole, Fig. 6 is a partially cutaway side view of the same as above, and Fig. 7 is the cutting edge of the cutting tool. It is an enlarged front view of the section. 2... Reciprocating table, 4... Cross rail, 8...
・Saddle, 11... Tool stand, 12... Bit mounting member, 13... Mounting rod, 16... Lifting means, 17...
- Rotating means, 26...Bite, 31...Bracket, 32...Guide roller, 46...Thin plate.

Claims (1)

[Claims] A planing machine that consists of a reciprocating table that holds the workpiece on the top surface and moves horizontally forward and backward, a saddle that is attached to a cross rail located on this table so that it can move laterally, and a tool stand that is attached to this saddle so that it can move up and down. On the board, on this tool stand,
A cutting tool, which cuts the upper surface of a thin plate as a workpiece fixed on a table to form a groove such as a V-shaped cross section, is eccentrically fixed to the lower end of the cutting tool mounting member that is attached so as to be able to move up and down and turn. A mounting rod that can be raised and lowered and cannot rotate is provided adjacent to the cutting tool mounting member, and a bracket fixed to the lower end of this mounting rod has a guide roller that presses the top surface of the thin plate just before it is cut by the cutting tool. The horizontal axis is installed so that it is perpendicular to the center of rotation of the tool mounting member, and the tool rest is mounted on the tool stand by rotating the tool mounting member 180°, so that the direction of the tool at the lower end of the tool can be rotated 180° and reciprocated. A thin plate cutting device characterized by being provided with a turning means for cutting and a lifting means for raising and lowering a cutting tool attachment member.