SU1458143A1 - Turning clamping device - Google Patents

Abstract

The invention relates to the field of machine tool construction, in particular, to devices for securing parts on the machine tool table. The purpose of the invention is to expand the technological potential by increasing the range of clamping parts, 1x parts. The rotary clamping device comprises a piston 2 placed in the housing 1, on the rod of which the lever 5 is fixed, the spring 7 is designed to press the lever 5 from the surface of the part 8, the housing 1 has an inlet 10. On the housing 1 there is a pin 13, in which the worm wheel is located 15 forming a pair with a worm 16. The cover 13 includes the lower part of the sleeve 17 of a multifaceted shape. Bushing 17 and wheel 15

Description

one

The invention relates to the field of machine tools, in particular, to devices for securing parts on the machine table.

The purpose of the invention is the expansion of technological capabilities by increasing the range of clamping parts.

Figure 1 shows the device section, along the axis of the piston rod; on fig2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 - scan the inner surface of the helical section.

The rotary clamping device contains a piston 2 placed in the housing 1, on the stem 3 of which is sealed with gaskets 4, a clamping lever 5 ,, fixed is fixed on the upper tetrahedral end of the stem 3 of the clamping lever 5, a nut 6o is used. 2 is designed to press the clamping lever 5 from the surface of the part 8 fixed on the table of the machine 9. The case 1 is also fixed on the table of the machine 9 and has to intake the working medium into the rod space of the piston 2 inlet hole 10, to release air from the rodless space of the piston 2, an outlet 11 o is intended. The piston 2 in the housing 1 is sealed with gaskets 12 “On the housing 1 there is a cover 13 with a flange 14о attached to it 13 forming a worm gear 15 A pair with a screw 16. The cover 13 includes the lower part of the sleeve 17 of a multifaceted shape, making it impossible for it to turn, sealed with gaskets 18. The sleeve 17 and the worm gear

five

0

five

D

five

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the wheel 15 forms a screw pair with a thread 19, cut on the outer surface of the sleeve 17 and the inner surface of the worm gear 15 o. A longitudinal screw groove 20 is made on the inner surface of the sleeve 17, having a vertical portion in the lower part. In the groove 20 there is a fixing stop 21 that limits movement a groove 20 of the guide member 22 fixed to the rod 3. Position 23 is the clamping pin in the clamping position. Position 24 - clamping lever in rest position

The device works as follows,

When: supplying the working medium under pressure through the inlet 10 to the rod end of the piston 2, the latter, moving along the path defined by the shape of the groove 20, compresses the spring 7 and forces air out of the headless space through the outlet 11. The guide element 22 moves along the vertical section of the screw groove 20, which ensures the clamping of the part 8 in the direction perpendicular to the surface of the table of the machine 9 °. The clamping lever 5 moves from the rest position 24 to the position of the clamp 23,

The clamping lever 5 is pressed when the pressure in the rod space of the piston 2 is released under the action of unclamping the spring 7 until it stops against the guide element-22, which moves along the groove 20 in the opposite direction, into the locking support 21 o. The air inlet 11 is sucked in; the piston 2 displaces the working medium from the rod space of the piston 2 through the inlet 10. The clamping lever 5 moves from the position of the clamp 23 to the rest position 24.

The height of the clamp 23 of the machined parts 8 is adjusted by changing the offset of the sleeve 17. When the screw 16 is rotated, the worm gear 15 rotates, while at the same time 17 is deprived of the possibility of rotation around its axis in the wheel 13, due to the multifaceted shape of its lower part, it moves vertically along thread 19. When increasing the offset of the sleeve 17 increases the amount of movement of the guide element 22 along the vertical portion of the groove 20, therefore, the height of the position of the clamp 23 increases. Conversely, when the length of the sleeve 17 decreases, the height of the The size of the clamp 23 decreases,

The angle of rotation of the clamping lever, ha 5, is adjusted by moving the lock pin, for example, using a screw and a nut of the stop 21 along the axis of the groove 20o

The direction of rotation and the speed of movement of the clamping lever 5 in different parts of the path of movement is controlled by changing the sleeve 17,

This design of the device allows fixing parts in places with limited access to the clamping surfaces, processing the outer contour of parts on CNC machines without re-fastening, reducing the number of lips / 1458143

parts, reduce the time of processing parts, which provides the device a wide technological capabilities.

Claims (1)

Invention Formula A swivel clamping device 10 comprising a piston with a sealed rod with a clamping lever fixed on it and a pin 15 arranged in a housing for axial displacement and rotation, designed to interact with the walls of the screw-shaped groove in the guide sleeve, characterized in that , in order to expand the technological capabilities by increasing the clamping range of a lx parts, the device is equipped with an abutment mounted on the outer surface of the bushing guide. located on the housing of the pinch and placed in it by the mechanism for controlling the outflow of the guide bushing, made in the form of a worm and screw pair, while the screw pair is formed by a thread on the inner surface of the worm gear and a thread on the outer surface of the screw of the sleeve, which is installed with the possibility of limited movement through the stop, while the lower part of the sleeve is made polyhedral Noah with 75 u.Z 6-6 pg 3 22 paff. Phie,