JPS58157546A - Die receiving base adjusting device of former - Google Patents

Abstract

PURPOSE:To enable free adjustment of movement of a die receiving base confirming visually trial stroke of heading during operation by adjusting supporting position of a die by moving back and forth the die receiving base that supports the die by rotating an operation shaft from outside. CONSTITUTION:In a former device, a die 1 and a die receiving base 2 are fitted to a die block 3 with the rear end of the die 1 supported by the die stand 2. The die receiving base 2 is screwed to screw receiving cylinder 2a allowing advance and retreat against the die block 3. At the same time, a worm gear 5 that engaged with a screw 4 provided in the die block 3 is formed in the outer periphery of the front end of the die receiving base 2. The operation shaft 6 of the screw 4 is exposed to the outer end face of the die block 3 to allow operation from outside. The end of the operation shaft of the screw 4 is linked with a driving source such as a motor, etc. Thus, adjustment of movement of the die receiving base, so far impossible, can be performed freely from outside.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that moves a die pedestal supporting a die forward and backward by rotating an operating shaft from the outside to adjust the supporting position with respect to the die.

In the past, it was common to incorporate the die holder into the die block in an immovable manner, so the supporting position of the die was always constant. When forging by punching, the temperature range for the material before and after reaching the set temperature cannot be easily confirmed, especially immediately after the machine starts operating, so it is inevitable that dimensional variations will occur in the material for heading due to temperature differences. Ta. For this reason, it is customary to repeat test shots a few times continuously over a long period of time until the material addition and temperature approach a predetermined value, are averaged, and normal operation is achieved. If the die support position is constant, if the heating temperature of the material is below the set value, the volume will be insufficient and a forged product of the specified shape will not be obtained.On the other hand, if the heating temperature is above the set value, the meat will overhang, e.g. This is because, as shown in FIG. 4, a pressed product with uneven tips will be produced. Therefore, in such a case, it would be good if the die support position could be adjusted by moving the position of the die holder forward or backward.
The die holder built into the die block could not be adjusted without disassembling it.

Therefore, in consideration of these conventional points, this invention has made it possible to freely adjust the movement of the die pedestal, which was previously impossible, by being able to operate it from the outside while visually checking the trial forging during operation. This is what I did.

The details will be explained below with reference to the embodiments shown in the drawings.

The structure of the present invention is such that the die 1 and the die pedestal 2 are fitted into a die block 3 in a state where the rear end of the die 1 is supported in contact with the die pedestal 2. 2 is screwed onto a screw receiver 2a so as to be movable forward and backward relative to the die block 3, and a worm that engages with a threaded screw mounted on the die block is provided on the outer periphery of the front end of the die receiver 2! 15 and a threaded screw with 4
The operating shaft 6 is exposed to the outer end surface of the die block 3 so as to be operable from the outside, and the operating shaft end of the threaded screw 4 is provided with a connecting means that can be linked to a drive source such as a motor 7. It is characterized by this.

The die 1 has a die case 1a and a nib lb at the front end.

1o are fitted with a nib stand 1d supported at the rear end, and the whole is integrated by a tightening ring 1e screwed onto the rear end. This die 1 is inserted into the die fitting part of the die block 3 through the front end opening 3a, and is engaged with a lock pin 8 to prevent it from coming off, but the distance in the front and rear direction is a minute distance 1Ii (usually around 1taea). It is specified that only one person can move freely.

The screw receiver 2a of the die holder 2 is immovably fixed in the die block portion with a lock pin 9, and has a female thread 1 on the inner peripheral surface.
0''lI: The die holder 2 has a male thread 11 formed on the outer circumferential surface of its cylindrical portion, which is inserted through the front end opening of the screw receiver 2a and screwed into both screws 10 and 11. The front end of the die holder 2 protrudes like a flange, and a worm l is attached to the outer circumferential surface of the flange.
Form 1gl5. The threaded screw 4 is installed in the die block 3 in a direction perpendicular to the die axis so that a part of the screw 4 protrudes into the die insertion part and meshes with the worm a15, and has a shaft 6 protruding from both ends. ' and an operating shaft 6 so as to be rotatable. 13 is its bearing collar 414 is a set screw, 18 is a knockout pin, and 19 is its push rod. The shaft end of the operating shaft 6 is exposed to the outer end surface of the die block 3. A square hole 15 or a protrusion is provided in order to perform rotation operation, and a tool is placed on it to rotate it. Alternatively, the drive shaft of the motor 7 may be connected to rotate the motor 7 by power.If the motor 7 is rotated by power, remote control is also possible.

When the threaded screw 4t-1 is turned in either the forward or reverse direction by the operation shaft 6, the die holder 2 is rotated by the worm m5 engaged with it, and the die holder 2 is rotated in both directions within the screw holder 2a. When the screws 10 and 11 are screwed together, it moves forward when turned in the correct direction, and backward when turned in the reverse direction. Therefore, when the S material 17 is upset into the die hole of the die 1 by the punch 16 and forged, if the heating temperature of the material 17 is higher than the set value, the die pedestal 2 is moved back and reversed. If the temperature is low, adjusting the forward movement will eliminate the difference in change due to thermal expansion while keeping the forward position of the inch 16 constant. Therefore, the time and number of trial shots are significantly shortened, waste of materials and labor are eliminated, productivity is improved, and work efficiency is significantly increased.

In addition, by moving the die pedestal 2 back and forth, the threaded screw 4
A slight deviation occurs in the meshing of the worm teeth 5 with respect to the worm teeth 5, but since the amount of movement of the die pedestal due to the adjustment is a minute distance of around IIIff1, the meshing does not become misaligned.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view of a die pedestal device showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Figs. 2 is a cross-sectional view of the die-shaped hole portion, the former shows a normal state, and the latter shows a case of excessive volume. 1... Dice 2... Dice holder 3.
...Die block 4...Screw screw 5
...Worm m6...Operation shaft 7...
Motor 2a...Screw receiver Applicant: Sakamura Machinery Co., Ltd.

Claims (1)

[Scope of Claims] α) In an apparatus in which the die and the die pedestal are fitted into a die block with the rear end of the die abutting and supported on the die pedestal, the die pedestal is fitted into the die block. A worm #1 is formed on the outer periphery of the front end of the die holder to be engaged with a threaded screw installed in the die block. A die pedestal adjustment device for a hoe 7, characterized in that it is exposed to the outer end surface of a die block so as to be operable from the outside. @) The die pedestal adjusting device in the hoe 7 according to claim 1, characterized in that a connecting means capable of interlocking with a drive source such as a motor is provided at the end of the operation shaft of the threaded screw. .