JPS5933487B2 - traveling cutting machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a traveling cutting machine used in a manufacturing facility that continuously produces bent steel pipes, bent steel materials, etc., and is capable of cutting materials with various curvatures by replacing the traveling rail of a die set truck. This invention relates to a cutting machine that can travel and cut according to each curvature without cutting.

Conventionally, in a traveling cutting machine for bent materials, a die set cart is moved on a rail that matches the curvature of the material to be cut, and synchronized with the material to be cut passing through the cutting machine.

Therefore, in order to cut a different material with a different curvature, it is necessary to replace the fixed rail with a rail that matches the curvature of the different material.

However, it is difficult to suspend heavy parts such as die sets.
It has been difficult to cut materials with various curvatures with a single traveling cutting machine because replacing the rails requires a lot of time and manpower and reduces work efficiency.

Therefore, the purpose of this invention is to provide a cutting machine that can travel and cut materials with various curvatures with one device.The die set truck moves in a straight line, but the cutting die placed on the truck is separate from the truck.
It moves in an arc with the same curvature as the material to be cut.For example, when a guide groove with a predetermined curvature is bored in a guide plate removably installed between the trolley rails, the cutting mold moves with the trolley. The feature is that the guide groove is traced and moved in an arc with the same curvature as the material to be cut for synchronization.

That is, in this invention, a turntable is mounted on a cart that runs in a straight line on a base so that it can be moved and rotated in a direction perpendicular to the running direction of the cart, and the turntable is attached to a workpiece to be cut in the running direction of the cart on the base. A curvature guide plate provided with guide grooves made of combined arcs of predetermined curvature is removably fixed and attached, and a guide arm having a pair of guide rolls at a predetermined interval for inserting into the guide grooves and tracing the guide rolls is connected to the turntable. This is a traveling cutting machine whose main purpose is to restrain the movement of the turntable and cut the cutting mold etc. placed on the turntable while the cart is running in synchronization with the curvature of the material to be cut.

For example, a turntable on which a cutting die is placed is pivoted on a trolley that engages with a rail on a base and moves in a straight line so that it can move in a direction perpendicular to the rail, and guide rolls that trace a guide groove are installed at both ends. A pivoted horizontal guide arm is pivoted at its center on the bottom of the trolley, and a turntable is connected to the guide arm so that the rotation of the arm is interlocked with the rotation of the arm, allowing the material to be cut to pass through the cutting die at the same time. A curvature guide plate provided with a curvature guide groove is removably fixed on the base between the rails, and a pair of guide rolls are fitted into the guide groove to restrain the movement of the turntable, so that when the bogie is running, the turntable is restrained. This is a device that travels and cuts by moving the turntable in an arc with the same curvature as the material to be cut, separate from straight travel.

The traveling cutting machine of the present invention has a variety of curved guide plates provided with guide grooves that match the curvature of the material to be cut, and a method for fixing the plates is, for example, by fitting them into fitting grooves provided between the rails of the base. By fixing the guide plate in place, a single cutting machine can easily cut various types of bent materials as needed by simply replacing the curvature guide plate one by one according to the curvature of the material to be cut.

Note that by making the grooves of the curvature guide plate straight, it can also be used as a normal traveling cutting machine.

It is obvious that the traveling cutting machine having the structure according to the present invention can be constructed using a known die set truck, cutting machine, and member pivoting and connecting methods.

Embodiments according to the present invention will be described below with reference to the drawings.

Here, we will show an example of application to a press cutter type.

A bed 1 on which devices are placed has a column 5 erected on its upper surface, and is supported by being loosely inserted into a connecting pipe on the lower surface of a press slide 6 that descends during cutting.

A cutting die 50 is provided between the bed 1 and the press slide 6.
A traveling trolley 10 on which a vehicle is mounted is configured to travel.

Lower rails 3 are fixed to the bed 1 at predetermined intervals via rail fixing members 2, and each lower rail 3 is provided with a recessed portion on its outward side surface for fitting with a traveling carriage 10.

Further, an upper rail 7 is similarly fixed to the press slide 6.

The traveling trolley 10 is a rectangular plate with two opposing side surfaces,
An engaging part 11 having a convex part on the inside is provided vertically and fits into the recess of the lower rail 3, and the entire carriage 10 is carried by the needle roller bearing unit 13 at the bottom and moves on the surface of the lower rail 3.

A loose insertion groove 12 is provided on the engaging portion 11 side of the truck 10, and the needle roller bearing unit 13 is inserted into the groove 12 by the sealing member 1.
4 to fix and install.

Note that ring plates 15 are provided at both ends of the groove 12.

The press slide 6 has a connecting pipe 26 protruding from its lower part, is loosely fitted into the column 5, and is supported so as to be movable up and down.

The engaging portion 21 of the rectangular upper truck 20 is installed in the side fitting groove of the upper rail 7 that hangs down to the press slide 6, similar to the traveling truck 10.
The upper carriage 20 slides on the rail surface using a built-in 21 dollar roller bearing unit (23).

This bearing unit 23 is fixed in a loose insertion groove 22 provided in the upper part of the upper truck 20 using a sealing member 24.

Note that 25 is a ring mounting plate.

In addition, struts 16 are erected at diagonal positions on the upper surface of the traveling carriage 10, and a connecting pipe 26 is suspended from the lower surface of the upper carriage 20 at the position of the strut 16 and loosely inserted into the strut 16, so that the press slide 6 can move up and down. It is configured so that it can be linked to.

A striker 27 protrudes from the lower surface of the upper truck 20, and strikes the upper member of the cutting mold 50 placed on the turntable 30 when the upper truck 20 is lowered to cut the bent material.

Note that the press slide 6 is moved downward and upward by an electric motor and a crankshaft (not shown) provided at the bottom of the base.

The turntable 30 on which the cutting die 50 is placed has a shaft member 31 inserted into the center of the turntable 30 and inserted through the center of the traveling carriage 10 .

On the other hand, a needle roller bearing unit 35 having a planar configuration is installed on the upper surface of the traveling carriage 20 in a direction perpendicular to the lower rail 3, with a sliding wall 33 and a sliding plate 34 arranged in an L-shape around the shaft member 31. One set of transfer dust is arranged, and a slide member 32 is placed on it.

Note that a ring plate 36 is provided between the upper surface of the sliding wall 33 and the sliding member 32 to seal the seat surface.

The shaft member 31 is rotatably supported by the slide member 32 via a bearing 37.

Further, a metal liner 32a is provided on the upper surface of the slide member 32.
A lower surface portion of the turntable 30 abuts against and is slidably supported, thereby supporting the impact during cutting.

Next, in the lower part of the shaft member 31 through which the cart 10 is inserted vertically,
A flat guide arm 38 parallel to the bottom surface of the traveling trolley 10 in the 3 directions of the lower rail is fitted at its center, and the shaft member 31
It is attached so that it can rotate around the center.

Guide rollers 39 that rotate in the horizontal direction are pivotally attached to both ends of the guide arm 38 in the rail direction by pins 39a.

Therefore, the turntable 30 moves in the direction of the upper and lower rails, is free in the direction of the slide member 32 in a direction perpendicular to the rails, and is further configured to be rotatable about the shaft member 31.

With the above configuration, the turntable 30 is not restrained by the linear motion of the carriage 10 that slides between the lower rail 3 of the bed 1 and the upper rail 70 of the press slide 6, and is in a separate state.

A gripping member having a fitting groove in the direction of the rails 3 is fixed between the lower rails 3, 3 of the bed 1, and a curvature guide plate 40 having a guide groove 41 bored at a predetermined curvature is fitted and fixed.

Therefore, if the curvature guide plate has the same shape, it can be attached and detached freely.

This guide groove 41 has a shape into which the guide rollers 39 of the guide arm 38 described above can be inserted. A guide groove 41 is provided on one end side of the
Some of the parts that make up the wall are removable.

In other words, one end of the guide plate 40 serves as an insertion opening member 42 that can be attached and detached, and is fixed with a pin 43.

Therefore, the curvature guide plate 40 can be easily attached to the bed 1 and the guide roller 39 can be introduced into the guide groove 41. A plurality of curvature guide plates 40 provided with guide grooves 41 of various curvatures are prepared and one can be selected as appropriate. It can be attached to bed 1.

Next, the traveling device 51 that slides the traveling vehicle 10 is provided with a gripping member 53 at the tip of the arm 52, which transmits the rotation of an electric motor to a rack-shaped arm 52 via a gear, for example. It may also be configured to be connected to the side surface and run by extending the arm 52.

To explain the operation of the traveling cutting machine having the configuration detailed above, the traveling carriage 10 is restrained by the upper and lower rails 3°7 and moves linearly, and the turntable 30 placed on this
is restrained by the guide groove 41 of the curvature guide plate 400 via the shaft member 31 and guide arm 38 to perform circular arc movement.

As the traveling carriage 100 travels, the turntable 30 on which the cutting die 50 is mounted draws an arc with a predetermined curvature, and can be synchronized with the bending material traveling inside the cutting die 50, thereby making cutting possible.

As mentioned above, the movement of the turntable 30 can be changed freely as the curvature guide plate 40 fixed to the bed 1 is replaceable.
There is no need to suspend the entire device, replace rails, etc., and change the direction of movement of the cutting machine, as in the past.

Further, the load of the turntable 30 is supported by a traveling trolley 10 which is engaged with each of the rails 3 and 7 of the bed 1 and the press slide 6, and the turntable 30 itself is attached to the bed 1.
Since the movement is restrained by the curvature guide plate 40 that is firmly held by the curvature guide plate 40, there is no unnecessary movement of each member due to impact during cutting, and each member is correctly restrained and performs a predetermined movement.

That is, the traveling cutting machine of the present invention can travel and cut materials with various curvatures by a simple operation of replacing the curvature guide plate with one cutting device.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing a die set of a traveling cutting machine according to the present invention, Fig. 2 is a partially cutaway side view of Fig. 1, Fig. 3 is a top view of the die set, and Fig. 4 is a die set according to the invention. FIG. 3 is a top view of the curvature guide plate according to FIG. In the figure: 1...Bed, 2...Rail fixing member, 3...Lower rail, 4...Guide groove, 5...Column , 6...Press slide, 7...Upper rail, 10...Traveling trolley, 11, 21...Engaging portion, 12.22...
... Loose insertion groove, 13, 23 ... Needle roller bear link unit, 14, 24 ... Sealing member,
15゜25... Ring plate, 16... Pillar, 20... Upper truck, 26... Connecting pipe, 2T
...Striker-130...Turntable, 31...Shaft member, 32...Slide member, 32a-...Metal liner, 33.
...Sliding wall, 34...Sliding plate, 35...
...Needle roller bearing unit, 36...
... Ring plate, 37 ... Bearing, 38.
...Guide arm, 39...Guide roller, 39a...'pin, 40...Curvature guide plate, 41...Guide groove, 42 ...Insertion opening member, 43...Pin, 50...Cutting mold, 51...Travel device, 52...
Arm, 53... Biting member.

Claims (1)

[Claims] 1 Place the turntable on a trolley that runs in a straight line on the base.
A curvature guide plate is attached to the base so that it can be moved and rotated in a direction perpendicular to the running direction of the trolley, and has a guide groove formed by a predetermined curvature arc that matches the material to be cut in the running direction of the trolley on the base. A guide arm having a pair of guide rolls placed at a predetermined interval at a predetermined interval and inserted into a guide groove to trace the guide arm is connected to the turntable to restrain the movement of the turntable, and is placed on the turntable when the trolley is running. A traveling cutting machine that cuts the cutting mold etc. at the same time as the curvature of the material to be cut.