SU795972A1 - Apparatus for moving press tool - Google Patents

Description

(54) DEVICE FOR MOVING A PRESS TOOL

The invention relates to tooling, and specifically to devices designed to lift and move a pressing tool, such as dies, when installed on a press working table and removed from the working area of the press. .

A device for moving a pressing tool, consisting of upper and lower parts, mainly along the press table, contains spring-loaded ball bearings placed on opposite sides of the lower part of the tool, interacting with guides located on the press table fl.

However, in the known device, the sets of springs holding the tool over the stalk through the slats with rollers have a total force greater than the weight of the tool. With large dimensions, this is impractical, since considerable effort will be required to fix the bottom plate of the tool, and in the process of work, under the action of constant load and vibration, the rollers are inserted into the die plate. In connection with this, it will be necessary to re-equip the working surface.

table presses in use.

The purpose of the invention is the expansion of technological capabilities.

This goal is achieved by the fact that the device is equipped with strips installed on opposite sides of the tool, installed in strips with a possibility of reciprocating movement relative to ball bearings with retainers, as well as retainer stops, while spring-loaded supports are placed in planks, and the total force of the springs of ball bearings less than the total weight of the upper and lower parts of the tool, but more than the weight of the lower part of the tool, in addition, the latches are made in the form of a flat rail with alternating round and oval holes corresponding to the stops of the clamps and the springs of the spring-loaded ball bearings.

FIG. 1 shows a device, a general view in section, at different positions of the lock in FIG. 2 is a longitudinal section of the device bar; in fig. 3 - a clamp.

The device consists of two strips 1, each of which is attached to the lower part of the stamp 2 by means of screws 3. The case body 1 has a longitudinal groove, opened towards the stand 4 of the press. In the groove there is a ball bearing consisting of a separator 5, balls 6 and a lining 7, preventing the balls from falling out of the separator. Above the separator 5 is a ken, a movable clamp 8, made in the form of a flat rail with alternating oval 9 and 10 round holes. The ball bearings are spring-loaded with coil springs 11, one end of which is fixed to the separator, and the other —in the threaded plug 12. Inside the groove of the body of the plank, there are stops 13 located above the latches. The holes 9 and 10 of the latch correspond to the springs 11 and the stops 13 of the device. The balls b rest on the guides 14 located on the press table outside the die zone and designed to prevent the balls from being hardened into the press table from hardened steel.

The movement of the tool using the device is as follows.

Before installing the stamp on the press, the retainer 8 is brought into engagement between the head 13 and the separator 5, which prevents vertical displacement (insertion) of the ball bearing in the bar and provides a gap between the stamp 2 and the press table 4. The stamp 2 is inserted into the working area of the press from the auxiliary table (not shown). 9 pagodar balls, moving the stamp in any direction is provided by applying a force of no more than 2D kgf. To prevent the balls from being buried in the press table, hardened strips 15 are provided that are located on the press table outside the stamp area. When the upper part 16 of the stamp is attached to the press ram, the weight of that part of the tool that continues to exert pressure on the press table becomes less than the total force of the springs, therefore, the springs 11 Raise the tool upward by the gap b, and the load is removed from the lock. When moving latch 8 to another

the extreme position is the alignment of the holes 10 of the retainer with the stops 13. In this case the ball bearing can move inside the body of the bar, which allows 5 to lower the lower part 17 of the stamp onto the press table and fix it. The force required to hold the punch is insignificant and equal to the difference in force between the set of device springs and the weight

Q bottom of the stamp.

The advantage of the proposed device in comparison with the known is the simplicity of its design. The use of this device will not require the conversion of existing

 presses and increase costs when creating new ones. The device also reduces the time and complexity of the process of installing the stamp in the working area of the press.

Fopvlyla invention

Claims (2)

1. A device for moving a pressing tool consisting of upper and lower parts, preferably along a press table, containing placed on opposite ones. The lower parts of the tool are spring-loaded ball bearings that interact with guides located on the press table, so that, in order to expand technological capabilities, it is provided with slats installed on opposite sides of the lower part of the tool; reciprocating movement with respect to the ball bearings with retainers, as well as retainers with retainers, while the spring-loaded supports are placed in the slats. 2. The device according to claim 1, wherein the fixture is made in the form of a flat rail with alternating round and oval openings for guiding, respectively, the stops of the fixtures and the springs of the ball bearings. Sources of information taken into account in the examination 1. Patent ACHA number 3456481, v cl. 72-446, cl. At 30 V 15/02, published 07.22.69 jS .1 5