SU1683886A1 - Clamping device - Google Patents

Description

one

, (21) (22) 05.23.88 (6) 15.10.91. Bul № 38 (72) V.G. Lebedinsky, V.S.Kazennoe and I.M. Fomin, rk,

(53) 621.,. 3 (088.8)

(56) Catalog from an exhibition in 1972 in Moscow, Tobler, p. 10, a figure from below Clip with the help of four crackers.

(5) CLAMPING DEVICE

(57) The invention relates to metal working, namely to devices for fastening parts. The purpose of the invention is to improve the fixing accuracy by uniformly distributing the fixing forces. Spring loaded cams 7 are installed in pairs perpendicular to the housing grooves, each pair of which is designed to interact with pair wedge pushers. The case has a threaded rod at the end on which a sleeve with a rectangular flange and nut 1 is installed at the threaded end, between which the corresponding wedge pushers are in pairs, which contact with the corresponding cams 7. After the part is installed and the pressure nut is rotated, axial displacement of the wedge occurs pushers and fastening parts cams 7. silt,

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The invention relates to metal working, in particular to devices for fastening parts.

The purpose of the invention is to increase the languor of the anchorage by uniformly distributing the anchoring force.

Figure 1 shows the device, a general view; FIG. 2 shows a section A-A in FIG. 1 on Lig.Z — a section BB in FIG. 2; in fig. - view B in FIG. 2,

The device includes a housing 1 with

two mutually perpendicular T-about-5 parts relative to two mutually

different grooves, the line of intersection of the planes of symmetry which are perpendicular to the main reference plane of the device body 1 and coincides with the axis of the central hole, where the movable sleeve 2, in which the central rod 3 is installed along the moving fit, has a lower rectangular flange in the groove of the housing 1, perceiving the axial load from the nut A of the main clamp and holding the rod 3 from twisting. In case 1, a pin 5 is pressed in, located in the lower groove of the sleeve 2 and in the hole of the central rod 3, which limits the movement of the sleeve 2 up and the axial movement of the rod 3 down,

 The sleeve 2 contacts the two wedge pushers 6 mounted on its cylindrical outer surface and interacting with two cams 7 located in the T-slot of the housing 1, where the stops 8 and springs 9t are installed to return the cams 7 to the initial position In the other T-shaped groove (FIG. 2), stops 10, springs 11 and two cams 12 are installed, interacting with two wedge pushers 13 mounted on the surface of sleeve 2 and contacting with the pressure nut 1. In the central rod e 3 an additional pin 15 on which the power locking nut 1 on the rod 3 is installed quick- washer 16, the main sluzhascha for securing items to the base body 1 while rotating plane nut C of the cam working surface is flat, and the others - by

radius.

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thirty

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perpendicular axes. Then a quick-detachable washer 1b is installed, and a nut k is used to finally clamp the part.

The loosening of the part is performed in the reverse sequence. The nut 4 is retracted, the shi ba 16 is removed. When the thrust knob C is unscrewed, the cams 12 return to the driving position under the action of springs 11, the Nut Ik comes to the additional pin 15 and with its further rotation the movable sleeve 2 moves down, the cams 7 return to the idle position under the action of the springs 9. Eat parts.

Claims (2)

Formula invented The clamping device, in mutually perpendicular grooves of the casing, is pairwise mounted, spring-loaded with respect to cam stops, each pair of which is designed to interact with pairwise wedge pushers moved by a power drive, in order to improve the fixing accuracy, the power drive is made in the form of a rod with a threaded end fixed in the housing with a pin and a sleeve installed on it with a rectangular flange in the middle part and a pressure nut on the end of the thread, designed for for interfacing with corresponding pairwise wedge rollers, and a groove is made on the threaded sleeve, designed to accommodate an additional pin inserted into the device, behind a rod attached at the end, The device works as follows. The part is installed on the reference base plane of the housing 1. When the pressure nut is rotated, it axially moves towards the movable sleeve. 2. They with their butt and flange move towards one another two pairs of wedge pushers 6 and 13 | acting on the cams 7 and 12, which, moving in the T-slots of the housing 1, centering and pre-clamping  the details regarding the two are mutual perpendicular axes. A quick-release washer 1b is then installed, and a nut K produces the final clamp of the part. The loosening of the part is performed in the reverse order. Nut 4 is turned off, washer 16 is removed. When the nut is unscrewed, the cams 12 return to their original position under the action of springs 11, the nut Ik reaches the additional pin 15 and, with its further rotation, the movable sleeve 2 moves down the cams 7 is returned to its original position by the action of springs 9. Eat parts. Invention Formula The clamping device, in mutually perpendicular grooves of the housing of which two pairs of cam loaded relative to the stops are installed, each pair of which is designed to interact with pairwise positioned wedge pushers moved by a power drive, characterized in that, to increase the accuracy of fixing, the power drive is made fixed in the housing with a rod pin with a threaded end and a sleeve mounted on it with a rectangular flange in the middle part and a pressure nut on the threaded end of it, intended to interact with corresponding pairs arranged wedge pushers, wherein the threaded end of the sleeve a groove intended for receiving a pin inserted in an additional device mounted on the end of the rod, with 516838866 In this way, the working surface of one side of the remaining cams of the lachka is flat, and the working radius. Aa / 6 C / 532 Fig 2 fur. 3 Vid