ES2204245B1 - MACHINE FOR RETOQUE AND ADJUSTMENT OF MOLDS. - Google Patents

Abstract

Machine for touch-up and adjustment of molds consisting of a fixed structure with guide columns of a lower table and an upper mobile plate that approaches / moves away from the lower table when moving through the guide columns. The machine is characterized in that in the fixed structure threaded spindles are arranged, parallel to the guide columns, making the upper mobile plate nut and a means of actuating the threaded spindles, said actuating means forming a closed kinematic chain so that the movement of the spindles be synchronous. Of application in machine tool.

Description

Machine for retouching and mold adjustment.

The present invention aims at a machine for touch-up and adjustment of molds, called opener of tooling The machine consists of a movable lower table and a upper plate (bearing, in turn of a tilting plate with respect to the).

In this type of machines it is essential to ensure both the positioning accuracy of the top plate on the mold to try as the parallelism between mobile plate and table lower.

With the tool opener object of the invention high positioning accuracy is achieved (of the order 0.05 mm) and parallelism between the mobile plate and the table lower (of the order of 0.1 millimeters / meter).

To achieve these requirements the machine consists, conventionally, of a fixed structure with guide columns, of a lower table and a plate upper mobile approaching / moving away from the lower table than move in the guide columns. The machine is characterized to achieve its goal of parallelism and precision for having in the fixed structure of:

to)

some threaded spindles, parallel to the guide columns, making the upper mobile plate nut;

b)

some actuation means of the threaded spindles, forming said drive means a closed kinematic chain so that Spindle movement is synchronous.

The column drive is commanded by a single servomotor, with incremental displacements in direction ascending or descending and mechanical transmission to the games of nut / spindle This ensures high accuracy of positioning and a great parallel between mobile plate and table lower.

To better understand the purpose of this invention, a preferred form of practical realization, susceptible to accessory changes that do not distort its foundation.

Figure 1 represents a general view in elevation of a machine for touch-up and adjustment of molds according to the invention.

Figure 2 represents a profile view, corresponding to figure 1.

Figure 3 represents a plan view upper, corresponding to figure 2.

Figure 4 represents a plan view lower, corresponding to figure 2.

Figure 5 represents, in enlarged detail, a of the columns (4).

An example of practical, non-limiting embodiment of the present invention.

The machine according to the invention makes it possible to perform the final adjustments between the two parts of a mold. It's equiped of the following elements:

one.-

A sliding table.

2.-

A mobile top plate.

3.-

A tilting top plate.

4.-

Columns / spindle.

5.-

Mechanical drive

and.-

Fixed structure.

The fixed structure consists of a lower socket (el) and a superior platform (e_2) joined by guide columns (11).

The lower table (1) is movable longitudinally in a horizontal plane - see figure 4-.

The upper mobile plate (2) moves in up / down direction using 4 columns (11) and, at your once, it carries a plate (3), tilting about it - see figure 2-.

In addition to using columns (11), the connection between mobile plate (2) and lower table (1) is done by about nut / spindle sets as columns (4) that are arranged in The fixed structure.

The aforementioned spindle columns (4) they are structured in spindle (4a) - that rotates freely without displacement relative to lower table (1) - and nut (4b) that is linearly move on said spindle with the mobile avocado (2) and plate  tilting (3). The said mechanical drive means (5) are synchronized transmissions (5a) forming a kinematic chain closed, driven by a single servomotor (5b).

With this structuring, the machine has three main movements:

one.-

Vertical movement, which allows zoom in or out of the upper molds and lower.

2.-

Plate tilt movement mobile (3) that allows the mold to rotate 90 degrees higher.

3.-

Movement of displacement of the table (1) that allows the extraction of the lower mold.

The tilting movements of the mobile plate (3) and table movement (1) are done by hydraulic drive

The vertical movement is done by guiding the four columns (11) and turning four spindles (4a) that are synchronized (5a) and operated by a single servomotor (5b). The movement is activated by incremental shifts up or down and all command orders are executed by two command hands.

This particularity of four columns (11) and Four spindles (4) ensures:

to)

A high positioning accuracy (of the order of 0.05 millimeters)

b)

Automatic dish repositioning mobile (2) to the dimension selected by the user.

C)

A great parallel between the mobile plate (2) and the lower table (1) (of the order of 0.1 millimeters / meter).

d)

Thrust Force Limitation user programmable

The machine incorporates impact cylinders that discharge all their energy on the die for operations of marking of the same.

Claims (2)

1. Machine for touch-up and adjustment of molds consisting of a fixed structure with guide columns of a lower table and an upper mobile plate that approaches / moves away from the lower table when moving through the guide columns. The machine is characterized in that the fixed structure has
nen:

to).-

threaded spindles, parallel to the guide columns, making the plate nut top mobile;

b) .-

means of actuation of the threaded spindles, said drive means forming a Kinematic chain closed so that spindle movement Be synchronous.

2. Machine for retouching and adjusting molds, according to the preceding claim, characterized in that said means of actuation of the columns are synchronized transmissions driven by a single servo motor, with incremental displacements in ascending or descending direction and mechanical transmission to the nut / spindle sets .