CS217758B1 - Device for pressing at least two inner housings - Google Patents

Abstract

Device for pressing at least two inner sleeves, between which a constant distance must be maintained. The essence of the invention is best seen from Fig. 1. The device has a support pin, provided with at least one primary shoulder, on which a divided spacer insert is arranged and on whose outer wall a secondary shoulder is arranged. The invention is applicable in the widest range for pressing several sleeves into one hole one after the other and with observance of the prescribed distance.

Description

Device for crimping at least two inner bushings between which a constant distance must be maintained.

The invention is best seen in FIG. 1. The device has a support pin provided with at least one primary shoulder on which a split spacer is arranged and on the outer wall of which a secondary shoulder is arranged.

The invention is applicable to the widest extent for molding several sleeves into a single hole in succession and keeping the prescribed distance.

Ofeř.t

BACKGROUND OF THE INVENTION The present invention relates to a device for crimping at least two inner sleeves, particularly into a control valve body, while maintaining a prescribed distance between the sleeves, wherein the sleeves are pressed by a support pin which is relatively movable relative to the base plate with the control valve body mounted.

In the hitherto known devices for. By pressing the inner sleeves into the bodies, the first sleeve is mounted on the shoulder of the support pin and the base plate in which the body is fixed slides down towards the support pin. As the base plate moves, the sleeve is inserted into the cavity of the control valve body and the base plate extends upwardly above the support pin after pressing. The valve body is removed from the base plate, mounted inverted, and the procedure repeated as the second sleeve is pressed. In this device, pressing multiple sleeves into the valve body is laborious. Another disadvantage of these devices. it is necessary to make relatively large adjustments when changing the distance between individual bushings, or when pressing the bushings into valve housings of different dimensions. In these cases it is necessary to replace the support pin or change the stroke of the base plate. These drawbacks generally apply to all cases where several bushings with a predetermined distance between them need to be pressed into one hole.

These drawbacks are overcome by a device for crimping at least two inner sleeves according to the invention, while maintaining a prescribed distance between the sleeves, where the sleeves are pressed by means of a support pin which is relatively movable relative to the base plate with the body to which the sleeves are to be pressed. The principle of the invention is characterized in that the bearing pin provided with an axial bore for the centering mandrel and on the outer surface a basic shoulder for receiving one bushing has two axial and mutually parallel notches on its face and a primary shoulder for. receiving at least one split spacer having a secondary shoulder on its outer wall to receive another sleeve.

The advantage of the device according to the invention is to halve the pressing time of two or more inner sleeves and at the same time to reduce the laboriousness of this operation. The distance between the sleeves can only be changed by changing the spacers, which is advantageous when pressing the sleeves into bodies of different dimensions and reliably maintaining the distance between the sleeves.

1 shows a side view of a part of the device, FIG. 2 is a side view of an alternative arrangement of a support pin with split support inserts, FIG. 3 is a front view of a support pin, FIG. 4 is a front elevation of a split spacer, and FIG. 5 is a plan view of a split spacer.

The support pin 2 is mounted in the clamping plate 1 and its; the axis is identical to the axis of the guide ring 3. The guide ring 3, together with the body 4 into which the sleeves 11 need to be pressed, is supported by a loading plate 5. As an example, a control valve body 4 is used. keeping the distance between them. A primary shoulder 6 is provided on the support pin 2, on which a split spacer 7 is provided, consisting of two identical parts (Figs. 4, 5). The split spacer 7 is formed by two axial and parallel notches 8 on the face of the support pin 2 and the centering mandrel 9, which is guided in the axial bore 12 of the support pin 2. The notches 8 are part of the support pin 2. an outer wall by a secondary shoulder 10 for housing the housing 11 (shown in dotted lines). Under the primary shoulder 6, a base shoulder 13 is also provided on the bearing pin 2 to accommodate the other housing 11.

In an alternative arrangement (Figure ^1.2)] e for pressing the third housing 11 using other split spacers 7 ', which is seated on the upper surface 17 of the split spacer 7th

The detailed arrangement of the support pin 2 is apparent from Fig. 3, from which it is apparent the arrangement of the notches 8 which, before being pressed into the gap 18 (Fig. 4) in the split spacer 7.

Before pressing the sleeves 11, the clamping plate 1 with the bearing pin 2 is set up. The first sleeve 11 is fitted with the first sleeve 11, then the split spacer 7 is seated on the primary shoulder 8 a, It moves towards the clamping plate 1 on the guide columns and by pushing it to the lower position (shown, dashed), the sleeves 11 are pressed after passing the guide ring 3 into the control valve body 4. The required distance between the sleeves 11 is given by the fixed distance between the basic shoulder 13 and the secondary shoulder 10, or between the secondary shoulders 10 of the split spacer 7 and the split spacer 7 ‘. Changing distances, respectively. by changing the size of the split spacers 7, 7 ‘, it is possible to vary the distance between the sleeves 11.

When the base plate 5 is lifted, the control valve body 4 with the pressed-on sleeves 11 is removed and the split spacer 7 is removed, thus completing the entire pressing operation.

The device according to the invention can be used wherever it is necessary to press multiple sleeves while maintaining a constant distance between them.

Claims (1)

SUBJECT Device for crimping at least two inner sleeves, while maintaining a prescribed distance between the sleeves, wherein the sleeves are pressed by means of a support pin which is relatively movable relative to a base plate with a fixed body into which the sleeves are to be pressed, the pin (2) provided with an axial bore (12) for the centering mandrel (9) and on the outer surface of the invention a basic shoulder (13) for receiving one bushing (11) has two axial and parallel slots (8) and a primary shoulder (8) for receiving at least one split spacer (7) provided with a secondary shoulder (10) on its outer wall for receiving another sleeve (11).