JPH069704Y2 - Shaped steel processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention performs various processing such as cutting, punching and notching of long shaped steel such as angle steel, I-shaped steel and strip steel. The present invention relates to a shaped steel processing machine, and more particularly, to a shaped steel processing machine having an improved turret table portion capable of surely removing scraps generated during processing.

(Prior Art) Conventionally, a turret table provided with a plurality of dies radially has been used in a shape-steel machine for performing various kinds of machining on a work. The turret table is movable back and forth, rotatable and vertically movable. When performing various types of machining on a workpiece, rotate the turret table to index the desired die to the machining position, and then move it forward to position the die at the lower position of the ram. Is processed. After the desired processing is completed, the turret table is retracted to the retracted position to index the die for the next processing.

(Problems to be solved by the invention) By the way, when the desired machining is performed on the workpiece at the machining position,
The scraps (scraps) drop downward and are discharged, but sometimes they are caught in a mold or the like.
There is a problem that the scrap stuck to the die falls when the turret table is moved backward for rotation for indexing, and falls into the drive unit of the turret table, causing a failure.

(Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a turret base rotatably supported on a frame with a rotation shaft vertically and rotatably. A plurality of upper mold and lower mold are mounted on the turret table mounted on the upper part of the shaft, and a through hole communicating with the lower mold is provided.
A ram that presses the upper die indexed to the processing position by the rotation of the turret table and the advance of the turret base is provided above the turret table so as to be vertically movable, and the turret table is located below the turret table at the processing position. A shaped steel processing machine provided with a support frame for supporting from above, a receiving plate provided with a scrap discharge path is provided on the supporting frame, and an auxiliary cover having substantially the same width is provided on the rear side of the receiving plate, A disc-shaped scrap receiver provided in sliding contact with the lower surface of the turret table so as to be rotatable relative to the turret table is formed with a notch portion in the front-rear direction in which the receiving plate and the auxiliary cover are sandwiched. It is a thing.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 6, FIG. 7 and FIG. 8, the shaped steel processing machine 1 comprises a general body frame 5 in which left and right side frames 3R and 3L of C type are integrally assembled. is there. The body frame 5 is provided with a fixed table 7 for supporting a long work W such as an angle steel.

On the right side of the table 7, a material feeding table 9 that supports and feeds the work W is arranged. The left end of a channel-shaped support frame 11 extending in the left-right direction in the material feeding table 9 is fixed to the table 7, and the right end of the support frame 11 is supported by a vertically-supported column 13. Material sending stand 9
On the further right side of the roller stand 15, a roller stand 15 is installed upright.

A sizing table 17 is arranged on the left side of the table 7, and the sizing table 17 has a channel-shaped sizing frame 19 extending in the left-right direction and a plurality of vertically installed sizing frames 19 for supporting the sizing frame 19. The column 21 and the like.

The table 7, support frame 11, roller stand 1
A plurality of support rollers 23 for supporting the work W are rotatably supported by cantilever support at appropriate intervals in the left-right direction on the 5 and the sizing frame 19. Therefore, the work W supported by the plurality of support rollers 23 is smoothly moved from the material feeding table 9 side to the sizing table 17 side or the opposite direction.

A sizing device 27 having a butting plate 25 for positioning the workpiece W is provided on the sizing table 17 so as to be movable in the left-right direction. The sizing device 27 is movable by an NC-controlled DC servomotor 29 attached to the rear portion of the sizing device 27. Therefore, DC
The sizing device 27 is automatically moved in the left-right direction by NC control by the servo motor 29, and the tip end portion of the work W is brought into contact with the abutting plate 25 for accurate positioning.

The main body frame 5 is provided with a plurality of "U" -shaped mold holders 31 provided with an upper mold and a lower mold for appropriately working the work W supported on the plurality of support rollers 23. A turret table 33 provided radially is mounted so as to be rotatable and movable back and forth. This turret table 33
Is provided with a through hole for discharging scraps in communication with the lower mold. In order to move the turret table 33 back and forth, a handle device 37 is provided on a part of the operation panel 35 attached to the front part of the table 7. Therefore, when the handle device 37 is rotated clockwise or counterclockwise, the turret table 33 is moved back and forth.

Further, an upper frame 39 is provided above the main body frame 5 while being supported by the side frames 3R and 3L. A ram 41 for pressing an upper die indexed and positioned at a predetermined position to process the work W is mounted on the upper frame 39 so as to be vertically movable. Since the ram 41 is vertically moved by a hydraulic cylinder or a crank mechanism and may have a general structure, a detailed description of the ram 41 will be omitted. This lamb 41
The ram speed knob 43 and the ram pressure knob 45 for remote operation for controlling the ram speed and ram pressure of
Are arranged side by side on the right side of. Therefore, the ram speed and the ram pressure of the ram 41 are adjusted by the operator operating the ram speed knob 43 and the ram pressure knob 45.

For example, the side frame 3R in the body frame 5
Side frame 3R
A cable duct 47 is erected at a position close to. An NC control device 49 for automatically controlling the sizing device 27 and the like is provided above the cable duct 47. Further, an operating nameplate 51 for a shaped steel working machine is attached to the upper frame 39 near the NC control device 49.

The turret table 33 is provided so as to be rotatable and movable back and forth. The specific structure of the rotary drive unit of the turret table 33 is shown in FIGS. 3, 4, and 5.
As shown in the figure, a slide base 55 is fixed on the lower frame 53 of the main body frame 5 with a plurality of bolts 57. Plural, for example, two parallel guide rails 59 extending in the front-rear direction (hereinafter referred to as Y-axis direction; left-right direction in FIG. 3) are attached to the slide base 55 with a plurality of bolts 61.

The guide rail 59 is provided with a guide member 63 that is guided along the guide rail 59. The guide member 63 has a plurality of bolts 6 on the lower surface of the turret base 65.
It is attached at 7. 4th of this turret base 65
In the figure, a nut member 69 is integrally fixed to the right portion, and a ball screw 71 extends in the Y-axis direction and is screwed into the nut member 69.

As shown in FIG. 3, a rotating shaft 75 is rotatably supported on the shaft center of the turret base 65 via a plurality of tapered roller bearings 73. The turret table 33 is mounted on the rotating shaft 75 with a plurality of bolts 77. Further, a bracket 79 for a guard motor is integrated with a plurality of bolts 81 on the right portion of the turret base 65 in FIG. A guard motor (not shown) is attached to the guard motor bracket 79. The guard motor and the turret table 33 are interlockingly connected with each other via a known transmission member such as a sprocket and a chain.

With the above structure, when the guard motor is driven, the turret table 33 is rotated and indexed and positioned with respect to the turret base 65 via the tapered roller bearing 75 via the transmission member. Also, the turret base 6
5 rotates in the Y-axis direction via the nut member 69 when the ball screw 71 is rotated.
Will also be moved together. At this time, the guide member 63 is guided and moves along the guide rail 59.

A stopper member 81 is attached to the rear end portion (right end portion in FIG. 3) of the slide base 55 with a bolt 83, and the stopper member 81 moves further when the turret base 65 moves rearward in the Y-axis direction. It plays the role of a stopper to prevent it.

A limit switch 85 is attached to the left end of the slide base 55 in FIG. 4 with a plurality of bolts 87, and a dog 89 is integrated with the lower portion of the turret base 65. Thus, when the turret base 65 moves rearward of the Y-axis and the turret table 33 comes to a position where it can rotate, the limit switch 85 and the dog 89 act to move the position where the turret base 33 can rotate. It is something to detect.

An indexing device 9 for accurately indexing the turret table 33 is provided on the left side of the turret base 65 in FIG.
1 is provided. That is, a hydraulic cylinder 93 is attached to the left side of the turret base 65 in FIG. 4 by a plurality of bolts 95, and a vertically movable shot pin 97 is attached to the axial center of the hydraulic cylinder 93. . A spring 99 is interposed between the shot pin 97 in the hydraulic cylinder 93 and constantly urged upward.

A dog 101 is attached to the lower portion of the shot pin 97. Also, one side of the hydraulic cylinder 93 (the fifth
A limit switch 105 is attached to the lower part of the upper part in the figure) via a bracket 103.

On the other hand, the turret table 33 is provided with six indexing positioning holes 107 radially below the outer periphery of the turret table 33 at intervals of 60 degrees, for example.

With the above configuration, the state shown in FIG.
7 shows the state in which the tip of the shot pin 97 is inserted into 7 and the turret table 33 is indexed and positioned. When performing another indexing positioning from the state of FIG. 4, when the hydraulic cylinder 93 is operated and the shot pin 97 is lowered, the dog 101 is also lowered and the dog 1
01 is separated from the limit switch 105, the tip of the shot pin 97 is removed from the indexing positioning hole 107, and the turret table 33 is ready for indexing.

Then, in this state, for example, the turret table 33
When the hydraulic pressure of the hydraulic cylinder 93 is cut off after rotating 60 degrees, the shot pin 97 is lifted by the urging force of the spring 99 and the tip of the shot pin 97 is indexed into the positioning hole 10.
7 and the indexing positioning is performed.
At this time, it is detected that the dog 101 attached to the lower portion of the shot pin 97 ascends and comes into contact with the limit switch 105 to perform indexing positioning.

On the front side (left side in FIG. 3) of the lower frame 53 to which the slide base 55 is attached, a processing position (ram 41
A support frame 109 for supporting the turret table 33 from below is provided upright on the support frame 109.
Are integrally attached such as a plurality of bolts 113.
The relationship between the receiving plate 111 and the turret table 33 is specifically shown in FIGS. 1 (A), (B), (C) and FIG.

That is, in FIG. 1 (A) and FIG. 2, a rectangular scrap discharge path 115 is formed in the center of the receiving plate 111, and this discharge path 115 removes the scrap generated during processing by dropping it downward. It is for doing. Both sides of the receiving plate 111 (both left and right in FIG. 1A) are stepped portions 111A. A small clearance S is formed between the lower surface of the turret table 33 and the receiving plate 111, as is apparent from FIG. A bracket 117 is fixed to the upper right side of the receiving plate 111 in FIG.
The receiving plate 111 is provided on the bracket 117.
An auxiliary cover 119 having a width substantially the same as the width is fixed by welding or the like.

The auxiliary cover 119 is formed in a substantially quadrangular shape, and a semi-arcuate concave portion into which a rotation shaft 75 for rotating the turret table 33 can be inserted is located on the rear side (upper side in FIG. 1A). 119R is formed.

A disc-shaped scrap receiver 121 is provided on the lower surface of the turret table 33 in contact with the lower surface as shown in FIG. The front center part of the scrap receiver 121 (lower center part in FIG. 1A) is the stepped portion 11 of the auxiliary cover 119 and the receiving plate 111.
U-shaped notch 121U with 1A sandwiched therebetween
Are formed in the front-back direction. The scrap receiver 12
A guide plate 123 is integrally formed on the lower surface of the auxiliary cover 119 so that the lower surface and the upper surface of the auxiliary cover 119 can slidably contact each other.

With the above configuration, when the turret table 33 is rotated at the backward movement end position shown in FIG. 1 (A), the receiving plate 111 is provided in the notch 121U of the scrap receiver 121.
Since the auxiliary cover 119 and the turret table 33 rotate, the scrap receiver 121 does not rotate. That is, the auxiliary cover 119 and the like serve to prevent the scrap receiver 121 from rotating.

Further, when the turret table 33 is moved forward (downward in FIG. 1A) from the backward movement end position shown in FIG. 1A, the notch 121U of the scrap receiver 121 causes the auxiliary cover 119 and the receiving plate 111 to move. While being guided by the step portion 111A, they move together by the distance L as shown in FIG. 2 to the forward end position shown in FIG. 1 (B), and the workpiece W is brought into a desired processing state.

In the state shown in FIG. 1 (B), when the workpiece W is subjected to predetermined processing by the upper and lower molds supported by the desired mold holder 31, the turret table 33 receives the pressing force at the time of processing by the plate 111. Will receive. By setting the clearance S formed between the receiving plate 111 and the turret table 33 within the elastic deformation range of the tapered roller bearing 73 used for rotating the turret table 33, It is possible to prevent the taper roller bearing 73 from being damaged during pressurization. Therefore, since the turret table 33 has no mechanism for levitating, the turret table 3
The structure of the drive unit 3 can be simplified, and the manufacturing cost can be reduced.

The scrap receiver 121 receives a pressing force simultaneously with the turret table 33 during processing and descends. However, as shown in FIG. The urging force of the spring 125, which is constantly urged, is returned to the state in which it is always in contact with the lower surface of the turret table 33. That is, the scrap receiver 121 is arranged on the lower surface of the turret table 33 without providing a gap.

The scrap receiver 121 is in contact with the lower surface of the turret table 33 and is returned to the retracted end position of the turret table as shown in FIG. Therefore, even if scrap that is generated during processing and is caught in the lower mold is moved, it will not fall to another place. Therefore, scrap can be dropped on the spot into the discharge passage 115 of the receiving plate 111 or can be dropped into the discharge passage 115 of the receiving plate 111 when the scrap reaches the forward end position shown in FIG. 1B again. Is.

In this way, the scrap that is generated during processing and is caught on the lower die, for example, does not fall to the drive unit of the turret table 33, so that the cause of failure can be eliminated.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention provides a turret base 65 rotatably supported by a frame with a rotating shaft 75 vertically and rotatably, A plurality of upper molds and lower molds are mounted on the turret table 33 attached to the upper part of the rotating shaft 75, and a communication hole communicating with the lower mold is provided to rotate the turret table 33 and the turret base 65. Ram 4 that presses the upper die indexed to the processing position by advancing the
1 is provided above the turret table 33 so as to be vertically movable, and the turret table 3 is provided at the processing position.
3 is a shaped steel processing machine provided with a support frame 109 for supporting from below, a receiving plate 111 having a scrap discharge path 115 is provided on the supporting frame 109, and a rear side of the receiving plate 111 is provided. An auxiliary cover 119 having substantially the same width is provided, and a disc-shaped scrap receiver 121 provided in sliding contact with the lower surface of the turret table 33 so as to be rotatable relative to the turret table 33,
A notch 121U in the front-rear direction is formed such that the receiving plate 111 and the auxiliary cover 119 are sandwiched.

Therefore, according to the present invention, when the scrap remaining in the lower die after processing is dropped during the rotation of the turret table 33, the scrap is received by the scrap receiver 121, and It is located in a through hole formed in the turret table 33 so as to communicate with the mold, and when the turret table 33 rotates, it is moved on the scrap receiver 121 according to the rotation of the turret table 33, and the notch 121U of the scrap receiver 121. When it is carried to the position of, it falls from this notch 121U.

That is, according to the present invention, even if scrap or the like remains in the lower mold and drops when the turret table 33 rotates, it can reliably drop from the notch 121U of the scrap receiver 121, and It is possible to prevent various problems caused by the scattering.

[Brief description of drawings]

1 (A), (B) and (C) are plan views showing a main part according to the present invention, and FIG. 1 (A) shows a state in which the turret table is at the backward end position. B) shows a state in which the turret table has reached the forward end position. 2 is an enlarged sectional view taken along the line II-II in FIG. 1 (A),
FIG. 3 is an enlarged side sectional view of a turret table drive unit, FIG. 4 is an enlarged front sectional view of the turret table drive with a part thereof omitted, FIG. 5 is a plan view of FIG. 4, and FIG. FIG. 7 is a front view of a shaped steel working machine according to an embodiment of the present invention, FIG. 7 is a plan view of FIG. 6, and FIG. 8 is a right side view of FIG. 1 …… Shaping machine 33 …… Turret table 65 …… Turret base 75 …… Rotating shaft 109 …… Supporting frame 111 …… Receiving plate 115 …… Discharging path 119 …… Auxiliary cover 121 …… Scrap receiving

Claims (1)

[Scope of utility model registration request] 1. A turret table (65) mounted on a turret base (65) vertically and rotatably supported on a turret base (65) movably supported on a frame. 33) A plurality of upper molds and lower molds are mounted on the upper part of the upper mold and a through hole communicating with the lower mold is provided. A ram (41) that presses the ejected upper die is provided above the turret table (33) so as to be vertically movable, and a support frame (109) that supports the turret table (33) from below in the processing position. ) Is provided, a receiving plate (111) having a scrap discharge path (115) is provided on the support frame (109), and the receiving frame (111) is provided. A disk shape provided with an auxiliary cover (119) having substantially the same width on the rear side of the plate (111) and slidably contacting the lower surface of the turret table (33) so as to be rotatable relative to the turret table (33). The shaped steel working machine, characterized in that the scrap receiver (121) is formed with a notch (121U) in the front-rear direction in which the receiving plate (111) and the auxiliary cover (119) are sandwiched.