JPH0710819Y2 - Rolling machine structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The disclosed technology belongs to a technical field of a structure of a rolling machine for obtaining various processed products by using a plurality of tools used for rolling a tooth profile on a workpiece. .

Thus, this invention utilizes the material plasticity of the metal work,
When performing rolling forming processing of tooth profiles such as splines, the die fixing base is a rolling machine that uses a certain number of dies with a certain tooth profile as a tool so that they can be exchanged While the die supported by the operation of the clamper is moved up and down along the column with respect to the work supported by the center and pressed to perform plastic working, the clamper is controlled when the die is exchanged for setup change or the like. The invention relates to a rolling machine structure which is designed to be disengaged under the control of a die, and in particular, when a replacement die is set and reset on a die fixing base, a die clamper that grips the side of the die is rolled. Installed on a rotary plate supported by an annular guide rail installed on the board,
The invention relates to a rolling machine structure in which the dies are set and reset to and from the die fixing base by approaching and separating the clamper from the die fixing base.

<Prior Art> As is well known, a rolling machine is used for forming a tooth-shaped member such as a spline shaft or a gear as an element member of a mechanical device by subjecting a metal work as a workpiece to plastic working. Since the member having different specifications such as tooth thickness is rolled by the transfer of the so-called reference surface of the die to the rolling surface of each work, the setting of the die on the rolling machine must be ensured. Therefore, as shown in FIG. 6 up to now, the die fixing base 2 of the rolling machine 1 is provided with a pair of relatively movable wedge bases 3 and 3 ', so that the wedge bases 3 and 3'are slightly different from each other. The height of the processed surface of the dies 4, 4'is adjusted through the slides of the dies 4, and the dies 4, 4'of the dies clampers 5, 5 ...
4'is fixed to the fixed base 2 through a crane or a jig in a predetermined manner so that the processing surface height of the dies 4, 4 ', that is, the reference surface is held, and specifications of specifications such as tooth thickness are provided. The work 6 is processed according to the above.

In addition, the die fixing base 2 is arranged along the liner 8 provided on the column 7 through groove engagement or the like so that the hydraulic cylinder 2'on the apparatus frame.
It was designed to move up and down for processing.

Then, the rolling machine 1 is used for machining a plurality of kinds of works having different shapes by exchanging a plurality of tools like other mechanical devices. For replacement of the dies 4, 4'due to wear of the dies 4, 4 ', the die clamper 5 is disengaged from the die fixed base 2 and the die fixed base 2 is used with an appropriate crane, jig or the like. The dice 4 and 4'are detached and a new exchange die is set.

Although the dies 4 and 4'of the rolling machine 1 are conventionally replaced by using a crane or a jig as described above, it is usually performed manually by the operator himself.

<Problems to be Solved by the Invention> However, since the rolling machine 1 performs plastic working on both side surfaces of the work 6, in principle, the dies 4, 4 ′ are pressed against the side surfaces of the work 6. And the structure,
As shown in FIG. 6, the die fixing bases 2 which are movable up and down through groove engagement with the liners 8 provided along the columns 7 are arranged on both sides with the work center 9 as the center, and The dies 4, 4'of the structure are configured to be moved up and down by a hydraulic cylinder 2'provided on the upper frame of the columns 7, 7 in a posture in which the dies 4, 4'are close to the outer diameter of the work 6. The work space allowed when exchanging the dies 4 and 4'is narrowed, and various restrictions are imposed on the work of the operator and the attachment of a general transfer device.

Therefore, since the dies 4 and 4'may be heavy, it is not necessary for the operator to change the tools.
It takes 10 to 15 minutes per (4 '), and there is a problem that it is not possible to frequently perform the work of exchanging dies of various types smoothly, and it takes time to adjust the height and the like The interruption has the disadvantage of reducing production tact.

In addition, in the production line, automation of rolling machine processing,
There was the inconvenience that labor could not be saved and productivity was hindered.

Therefore, usually, dies for each specification and a die fixing base are prepared in advance to deal with this, so that management of stock parts is also troublesome, resulting in a high cost.

<Purpose of the Invention> The purpose of the present invention is to solve the problems in the die replacement of the rolling machine based on the above-mentioned conventional technology, and to solve the technical problems
When the dice are detached from and mounted on the die fixing base of the rolling machine through the control of the clamper, the used dies are removed and transported, and the dice to be replaced are moved up and down close to each other along the column. Conveying device is attached so as not to interfere with the die fixing base, the die is pressed against the work surely, the productivity of the rolling machine is enhanced by automating the exchange of the die, and the processing accuracy and the production tact are improved. It is intended to provide an excellent rolling machine structure which can be obtained in the machine manufacturing industry so as to benefit the processing technology application field.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned object of claim for utility model registration, supports the die so as to be freely attachable to the die fixing base. In the rolling machine structure in which the die clamper is electrically connected to the control device and supports the die fixing base so that it can be raised and lowered along the column, the clamper that can be held and released from the side of the die is the die fixing base. Is provided on a radial rail of a rotary plate provided on the column above the column so that the rotary plate is erected on the column, and an actuator for rotating a clamper provided on the column is a control device. It is a technical measure taken so that it is linked to.

<Operation> When carrying in and out the dice in the die exchange of the rolling machine, the dice are held in the mounting posture with respect to the die fixing base in accordance with the narrow working space when exchanging the dice. At least two clampers adapted to grip the dies on the side thereof are arranged, while a transfer route of the dies to the die fixing base is formed above the set surface of the die fixing base, and the rolling machine is provided. Of a plurality of clampers arranged at equal intervals by a slider movably supported by a ring-shaped rotary plate provided in the empty space The expansion direction of the clamp claw is made to coincide with the moving direction of the slider, and each clamper follows the slider in a rotary manner etc. to carry out and carry in the die above the die fixing table. An actuator for turning drive of the clamper, which is adapted to operate via the control device on the die fixing table, is activated, and the clamper is stopped, and at the retracted position, the clamper is disengaged from the die and gripped on the die fixing table. In this way, dice can be freely exchanged in a narrow space.

<Embodiment> Next, an embodiment of the present invention will be described below with reference to FIGS. It should be noted that parts that are the same as those in FIG. 6 will be described using the same symbols.

In the embodiment shown in FIGS. 1 to 4, 1'is a rolling machine which forms the center of the gist of the present invention, and is a die 4 as a tool.
The die fixing base 2 is automatically exchanged, set, and reset, and the configuration shown below mainly describes the transfer section of the die 4.

In addition, the die 4 has a liner 8 against the column 7 as in the conventional mode.
It is clamped and set on the die fixing base 2 which moves up and down by a hydraulic cylinder 2'provided on the frame through a groove engagement (not shown).

The work 6 supported by the work center 9 and subjected to the rolling process has a predetermined small size similar to the conventional one and is used for rolling the gears. Therefore, in the rolling machine 1 '. Due to the structure, the replacement space of the dice 4 is narrow as in the conventional case.

Thus, a pair of ring-shaped thin guide rails 10, 10 are erected on the frame 11 formed on the upper part of the column 7, and each guide rail 10 passes through the frame 11 to be in a horizontal posture. They are installed next to each other so that their peripheral edges are not in contact with each other.

Each of the guide rails 10 supports a rotary plate 12 formed in the same shape in plan view so as to be rotatable in sliding contact with the lower surface, and the sliding contact portions of both guides are appropriately lined.

Further, as shown in FIG. 3, an inner tooth (not shown) is engraved on the inner circumference of the rotary plate 12 and a pinion of a hydraulic motor 13 as an actuator fixedly mounted on the guide rail 10 via a bracket. It is in mesh.

Further, as shown in FIG. 3, the rotary plate 12 has
A pair of rails 15, 15 having a plate width a of the rotary plate 12 extending from the inner peripheral edge to the outer peripheral edge and forming one group.
In the present embodiment, four rails 15 and 15 are radially arranged at equal intervals.

Then, as shown in FIG. 2, the die fixing base 2 of the die 4 is used.
Clampers 16, 16 ... used for replacement of rails are rails 1
A sub-slider 17 movably supported by 5, 5 is suspended integrally with a sub-slider 17, and a clamper body 18 is vertically connected to the sub-slider 17.

In addition, the clamper main body 18 of each clamper 16 is provided with clamp claws 19, 19 having a U-shape in a plan view so as to be freely openable and closable via an arm portion to clamp and unclamp both sides of the die 4. As shown in FIG. 2, rods 21 'and 22' of a pair of cylinders 21 and 22 interlocked with a valve 20 mounted on the clamper body 18 are connected to the clamp claws 19 and 19, respectively. The side of the die 4 is pinched or released by opening and closing in the same plane in a link manner.
Die 4 is operated by opening and closing the clamp claws 19 and 19 by setting and resetting the valve operating pin 23 provided in the upward position on the 18
Both sides of are clamped and unclamped.

As shown in FIG. 2, the rotary plate 12 has a pin hole 24 at a portion corresponding to an upward extension line of the valve operating pin 23.
Has been drilled.

And, on the upper surface of the guide rail 10, there is provided a pressing cylinder 26 which is connected to an appropriate control device 25 and sets and resets the valve operating pin 23, and the push pin 27 is used for indexing drilled in the rail 10. Of the valve operating pin 23, and the valve operating pin 23 is operated by also passing through the pin hole 24 formed in the rotary plate 12.

Then, an encoder (not shown) is attached to the hydraulic motor 13 provided on each guide rail 10 and is electrically connected to the control panel 25 so that the displacement amount can be freely controlled.
The rotary plate 12 is rotationally driven through internal teeth provided on the index plate 12 to index the clamper 16 which holds the loaded die 4.

In addition, the guide rail 10 provided in the lower part of the frame 11,
A hook device 29 is provided on the frame 11 that operates on a notch (not shown) provided on the upper surface of the sub-slider 17 at an inner portion of the frame 10.

Then, a cylinder (not shown) equipped in the hook device 29 is electrically connected to the control device 25, and the notch of the hook device 29 is hooked to the notch of the sub slider 17 by the operation of the cylinder so that the sub slider 17 is not engaged. It is possible to stop the advance / retreat along rails 15.

Incidentally, the control device 25 of the rolling machine 1'is supported by the guide rail 10 during the rolling process of the work 6 via the die 4, and the rotary plate 12 which suspends the clamper 16 is supported.
Is set to the initial setting position so that it does not interfere with the vertical movement along the column 7 by the hydraulic cylinder 21 above the die fixing base 2.

In the above-mentioned configuration, after the predetermined rolling process for the work 6 by the predetermined die 4 set on the rolling machine 1 ',
Similar to the conventional mode, the dies 4 for rolling the work having different specifications are exchanged.

Therefore, in this invention, the control device 25 of the rolling machine 1'performs the rotation and indexing control of the rotary plate 12 as a slider with respect to the guide rail 10 by the hydraulic motor 13.

As a result, the clamper 16 not equipped with the die 4 moves along the guide rail 10 via the rotary plate 12 and stops at the corresponding position of the die fixing base 2 at the standby position, and at the same time, the pin hole provided in the guide rail 10. 28 and rotary plate
Pressing cylinder 26
Of the push pin 27 is formed, and the hydraulic cylinder 26 is operated there, and the push pin 27 is inserted into the pin holes 24, 28.
So that the valve 20 is operated.

Next, the control device 25 controls the sub-slider with respect to the hook device 29.
Perform the operation of stopping the advance of the claw with respect to the notch of 17 and retreating and leaving.

As a result, the clamper 16 set above the die fixing base 2 is stopped via the hook of the hook of the hook device 29 to the notch of the sub-slider 17, and the clamped claw is held along the rail 15 in the set posture. 19 and 19 are fixed to the die 2
The push pin 27 of the pressing cylinder 26 is controlled by the control of the pressing cylinder 26 provided on the guide rail 10 of the control device 25 so that the push pin 27 of the pressing cylinder 26 is moved to the side of the processed die 4 supported by the guide rail 10. , The pin hole 28 and the pin hole 24 provided in the rotary plate 12 are sequentially inserted and lowered,
It abuts against the valve operating pin 23 and presses it to close the valve 20.

Thus, the valve 20 that is closed during this time is the cylinder 21, 22.
And the clamper claw 1 pivotally supported by the clamper body 18
By closing 9 and 19, the clamper 16 supporting the die 4 on the die fixing base 2 is controlled to be disengaged, and the processed die 4 is separated from the die fixing base 2.

Then, the control device 25 releases the die clamper 5, and the die 4 is transferred to the clamper 16 in a baton touch manner.

Then, the clamper 16 holding the die 4 is moved in the outer circumferential direction along the rail 15 via the rotary plate 12 by a crane (not shown) or the like, and the die 4 is removed from the die fixing base 2.

Thus, the four clampers 16, 16, 16, 16 suspended from the rotary plate 12 move in the same direction along the guide rail 10 in a rotary manner via the control device 25, and the processed die 4 is moved. Clamper 16 held by the crane is unreeled and carried in, and the die 4 for exchanging the clamper 16 held by the crane and the like at the same time is carried out, and is inserted into the pin hole 28 and the rotary plate 12 provided in the guide rail 10. The pin holes 24 provided are aligned again via the control device 25 and stopped on the die fixing base 2.

Then, the hook device 29 is again attached to the sub slider of the clamper 16.
17 is locked, the rotary plate 12 is indexed and its rotation is stopped, the clamper 16 draws in the die 4 which is kept in the set posture with respect to the die fixing base 2, and the die fixing base 2 is suspended in a hanging posture along the rail 15. Let it set on top.

Then, the die clamper 5 presses the die 4 through the control device 25, and at the same time, the push pin 27 of the pressing cylinder 26 is pressed.
Is contacted with the valve operating pin 23 of the clamper 16, the clamp claws 19, 19 of the clamper 16 are expanded and separated from the die 4.

Then, when the replacement die 4 is mounted on the die fixing base 2, the push pin 27 moves backward, and the clamper 16 moves along the rail 15 with the clamp claws 19 and 19 closed by the operation of the cylinder of the hook device 29. Die fixing table 2
Will be more withdrawn.

When the indexing work is performed by the hydraulic motor 13, the rotary plate 12 moves along the guide rail 10, and its stop position is suspended on the ring-shaped rail 10 in the embodiment through the displacement amount control by the encoder. Clamper
It is indexed so that the die fixing base 2 is located at a predetermined portion of the gap between the 16 and 16.

After the die 4 is replaced with the die fixing base 2, the vertical movement of the die fixing base 2 along the column 7 is not hindered, and the normal rolling process is performed.

Next, in another embodiment shown in FIG. 5, guide rails 10 'and 10' as brackets are provided at the processing standby positions of the die fixing bases 2 provided on the columns 7'and 7'of the rolling machine 1 ". The guide rail 10 ′ is arranged with respect to the die fixing base 2 that moves vertically along the column 7, and
The rotary plate 12 'is cut out so as to be slidably contactable with each other, and the hook device 29' and the pressing cylinder are provided.
26 'is disposed on the guide rail 10' so as to operate with respect to the clamper 16, and the clamper 16 is provided above the die mounting surface on the die fixing base 2 which is located symmetrically with respect to the work center 9. Can be moved closer to and away from each other, and the dice 4 can be exchanged with respect to each die fixing base 2 at the same time.

Of course, the embodiment of the present invention is not limited to the above-mentioned embodiments. For example, a plurality of rails are appropriately laid on the slider to increase or decrease the number of clampers, or a ring-shaped rail, Further, the rotary plate may be a parabolic bracket and a slider, and various modes such as using a sensor or a limit switch can be adopted to control the displacement amount of the slider with respect to the bracket.

<Effects of the Invention> As described above, according to the present invention, basically, the die set on the die fixing base of the rolling machine, which performs the rolling process on the work through the die, is mounted on the periphery of the work supported by the center. In the rolling device structure that is symmetrically press-fitted to each other, when exchanging the dies, the die to be replaced is conveyed while maintaining the set posture with respect to the die fixing base, Clamping and unclamping control for the dies of the provided clamper can be linked to the die transfer so that the dies can be detached and mounted on the die fixing table, so that the dies are automatically fixed. The excellent effect is obtained that the table can be replaced and the productivity of the rolling machine can be improved.

Then, a rotary plate supporting the clamper is attached to the rolling machine, and when the clamper is moved with respect to the die fixing base, the rotary plate is moved in the expanding direction of the claws of the clamper that grips the die on the side part. The die fixing table can be installed and removed in and out of the die fixing table by allowing the rotary plate to be displaced in the direction perpendicular to the moving direction while matching the directions so that the die fixing table can be installed in a narrow space. It has an excellent effect that a heavy-duty die can be reliably and automatically replaced smoothly and smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 5 are explanatory views of an embodiment of the present invention, FIG. 1 is a front view of a rolling machine in one embodiment, FIG. 2 is an enlarged front view of a clamper, and FIG. 3 is a perspective top view of the rotary rolling machine, FIG. 4 is a side view of the same rolling machine, FIG. 5 is a front view of the rolling machine in another embodiment, and FIG. 6 is a conventional rolling machine. It is a front view. 4, 4 '... Die, 2 ... Die fixing base, 5 ... Die clamper, 25 ... Controller, 7 ... Column, 1 1' ... Rolling machine,
20 ... Valve, 16 ... Clamper, 15 ... Rail, 12 ... Rotary plate, 10 ... Bracket, 13 ... Actuator, 23
… Clamper operating pin, 11… Frame

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shoji Igawa 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd. (72) Inventor Akira Muraoka 20 Ishigane, Toyama-shi, Toyama Fujikoshi Machine Tool Co., Ltd. (72) Creator Hisao Sawasaki 20 Ishigane, Toyama City, Toyama Prefecture Fujikoshi Machine Tool Manufacturing Co., Ltd. (72) Creator Yoshihiko Kosugi 4-7-23 Nae Station, Nakamura-ku, Aichi Prefecture Fujikoshi Nagoya Branch

Claims (1)

[Scope of utility model registration request] 1. A die clamper for supporting a die on a die fixing base so as to be freely engageable with the die, is electrically connected to a control device,
In a rolling machine structure in which the die fixing base is supported so as to be vertically movable along a column, a clamper that can be held and released relative to the side of the die has a diameter of a rotary plate provided on the column above the die fixing base. A rolling machine structure, characterized in that the actuator is provided so as to be able to move back and forth in a direction rail, and is installed on the column on the other hand, and an actuator for rotating the rotary plate equipped with a clamper is linked to a control device.