SU1710273A1 - Device for fastening of multicell cassettes - Google Patents

Abstract

The invention relates to the machining of metals and can be used when milling flat keys. The aim of the invention is to increase the reliability of the key clamp. The device includes a housing 1, a drive element and a cassette 6 with keys. The drive element is designed as a plunger 10 with a bevel E interacting with a wedge surface C of the movable jaw 9 clamping the keys in the cassette 6. Plunger 10 is connected through the package of disc springs 13, the stop 14 and the L-shaped lever 15. . The adjustment of the clamping force of the keys is made by the adjusting screw 17. 1C. f-ly, 5 ill. : W? It015z <. "18Fi.1.1 ^ Wow VIW > &

Description

The invention relates to the machining of metals and can be used, for example, when milling flat keys.

The aim of the invention is to improve the reliability of the clamp.

In Fig. 1, a device for securing multi-seat cassettes is shown in general: in Fig. 2, view A in Fig. 1, in Fig. 3, a cartridge for clamping parts; figure 4 - section bb in fig.Z; figure 5 is a section bb In figure 4.

The device comprises a housing 1 placed on a slider 2 moved along guides 3, for example, a milling machine, from the hydraulic cylinder 4 of the machine feed drive (Figures 1 and 2). A slot 6 with parts (keys) is fixed on the support with slots under the keys of the keys of the comb 5 of the housing 1, fixed on one side by the support 7 of the fixed jaw 8, and on the other - the movable jaw 9 with the wedge surface C. The latter interact with the drive element made in the form of a spring-loaded plunger 10 with a bevel E.,

At one end of the plunger 10 on the axis 11 is mounted a roller 12, and on the other end is placed a package of cup springs 13, interacting through the stop 14 with one shoulder of the L-shaped lever 15 mounted on the axis 16 in the housing 1. The other lever of the lever 16 is equipped with an adjusting screw 17. Between the guides 3 of the machine, a bar 18 with a bevel is fixed, interacting with the roller 12. The keys are machined with mills 19 (Fig. 2}. The spring 20 serves to return the movable jaw 9 to its original position, which ensures unclamping of the part cartridge 6 ( keys). By 1set 6 we can It can be done, for example, from the strips 21-23, mounted on the axles 24 and fastened in the package with screws 25 and axles 26, riveted from two sides (FIG. 3).

Between the strips mentioned, compensators 27 and 28 and cup springs 29 are placed to select the gaps between the strips, compensators and workpieces installed in the grooves formed between the strips against the stop in the compensator 27 (Fig. 4). Due to the disc springs 29, the parts (keys) are pressed against the walls with a groove, which prevents them from falling out when the keys are installed in the cassette - until the cassette is fixed between the fixed jaw 8 and the movable jaw 9 of the device (Fig. 1).

The device works as follows.

When clamping the key blanks, the working medium under pressure is fed into the right cavity of the hydraulic cylinder 4, and the housing 1 of the device with the slider 2 moves along

guides 3 to the left (Figures 1 and 2). As a result, the roller 12 mounted on the plunger 10 moves down the bevel of the bar 18. Under the action of the packet of disc springs 13, the plunger 10 also moves down to

As a result, the bevel of the plunger 10 moves the movable sponge 9 to the left, overcoming the force of the spring 20, and thus provides clamping of the parts (keys) in the cassette 6. The force of the package of the Belleville springs 13 greatly exceeds the force developed by the spring 20.

The adjustment of the clamping force of the packet of the Belleville springs 13 is carried out by an adjusting screw 17. Thus, a screwed screw

0 17 century. The shoulder of the L-shaped lever 15, it rotates clockwise (Fig. 1). The other arm of the lever 15, which interacts through the stop 14 with the package of the disc springs 13. moves upwards, as a result

5, the springs 13 unclench and the force acting on the plunger 10 and through the non-moving sponge 9 is reduced. After fastening the screw 17, the L-shaped lever 15 is fixed relative to the housing 1 and not

0 changes its position when the roller 12 moves down or up along the bevel of the bar 18. Unscrewing the screw 17 from the lever 15, moving the second arm of the lever 15 down, you can increase the amount of force developed

5 package disc springs 13 (figure 1).

The unclamping of the parts in the cassette 6 is as follows. When applying pressure of the working medium to the left cavity of the hydraulic cylinder 4, housing 1 with a slider 2

0 moves along the guides to the right. As a result, the roller 12 rises along the bevel of the strip 18, moving the plunger 10 upwards. As a result, the movable jaw 9 returns to the right under the action of the springs 20 -

5, the initial position (Fig. 1), providing uncoupling of the part cartridge 6.

Claims (2)

Claim 1. A device for securing multi-cassettes for group processing of parts, comprising a fixed sponge placed on the housing and a movable sponge associated with the drive element, characterized in that, in order to increase the reliability of the clamp, 5, the element is designed as a plunger with a bevel mounted on the housing with the possibility of moving a spring-loaded packet of disc springs with a bevel designed to interact with a wedge surface, which is made on a movable sponge. wherein the spring-loaded plunger is kinematically connected with the housing by means of an L-shaped lever inserted into the tool and placed between one shoulder of the latter and one of the ends of the package of the disc springs, and the movable sponge is spring-loaded relative to the housing in the direction of its movement. 2. The fixture as claimed in claim 1, in connection with the fact that, in order to control the clamping force, it is provided with an adjusting screw located on the other shoulder of the L-shaped lever and intended to interact with the housing. Ch.y.g.