SU692715A1 - Device for disassembling press-fir joints - Google Patents

Description

(54) DEVICE FOR DISASSEMBLY OF PRESS CONNECTIONS

I

The invention relates to dismantling devices for providing mainly for disassembling of products such as dies of various sizes.

A device for dismounting press joints is known, which contains a power cylinder mounted on the base, on the rod of which there is a traverse with hinged hooks at its ends, as well as a table for accommodating the assembly to be disassembled.

However, the known device does not provide for the dismantling of multiple stamps of various sizes.

The purpose of the invention is to ensure the dismantling of multi-dies of various sizes with simultaneous extraction of the stamped products.

For this, the device is equipped with an additional gripping mechanism, made in the form of two parallel skalok mounted on the body of the ram cylinder and located at their ends of the turning, interchangeable gripping eccentric cams.

In order to fix the levers relative to the traverse, the levers are provided with eccentric clamps mounted on them. FIG. 1 shows the proposed device, a general view; in fig. 2 - node 1

in fig. one; in fig. 3 shows section A-A in FIG. one; in fig. 4 is a section BB in FIG. 3. A device for dismounting press joints contains table 2 mounted on the base 1, above which the power cylinder 3 is placed (in our example,

Claims (2)

hydraulic), pivotally mounted on the stem 4 of the additional hydraulic cylinder 5 by means of ring 6. To the case of the power cylinder 3 by means of flanges 7 and 8, half rings 9 and 10 and fasteners 11 and 12 secure the rolling pin 13 of the additional gripping mechanism. At the ends of the rollers 13, fastening interchangeable cams 16 are fixed with fasteners 14 and 15 with upper protrusions 17 and lower protrusions 18. The gripping cams 16 are fixed with spring-loaded balls 19. To the rod 20 (see Fig. 3) of the power cylinder 3 with a finger 21 pivotally attached is a yoke 22, on which pivotally mounted lever grippers 23 with eccentric clamps 24, cooperating with the traverse 22 along a curvilinear surface 25 with a radius of 26. In the lower part of the lever grippers 23, fasteners 28 are fastened with fasteners 27. In the upper In this position, the lever arms 23 are fixed in the cross member 22 with spring-loaded fingers 29. A movable carriage 30 moves with a stamp 31 mounted on the table 2. The stamp 31 has annular grooves 32 and 33. The cams 16 lower lugs 18 have the ability to abut the matrix 34. Between the removable ring 35 and the upper lip 17 are provided with a guaranteed clearance a. The removable ring 35 serves to separate the blank 37 from the punch 36. The device operates as follows. The lever grippers 23 are raised to the upper position until they are fixed in the cross member 22 with spring-loaded fingers 29. The stamp 31 is mounted on the movable carriage 30 and moved to align the longitudinal axis of the stamp 31 with the longitudinal axis of the power cylinder 3. Simultaneously moving up and down the rod 4 hydraulic cylinders 5 install upper protrusions 17 and lower protrusions 18 of the cams 16 into the corresponding annular grooves 32 and 33 of the punch 31, with the lower protrusions 18 of the cams 16 abutting the matrix 34, and between the removable rings 35 and the upper protrusions and a gap 17 is formed. Lifted lever arms 23 are lowered. Assistants 28 enter ring groove 32. Lever arms 23 are secured with eccentric clamps 24 interacting with cross member 22 along curvilinear surface 25 with radius 26. When the stem 20 of the power cylinder 3 moves upwards, force passes through the cross bar 22 is transmitted by a lever gripper 23 and an abutment 28. When moving upward, a punch 36 with a ring 35 and a billet 37 is pulled up from the remaining part of the punch 31, which is held by the lower lugs 18 of the cams 16. With further upward movement of the stem 20 of the power cylinder 3 The distance between the ring 35 and the upper protrusions 17 of the cams 16 is selected and the ring 35 rests against the upper protrusions 17 of the cams 16. The rod 20 of the power cylinder 3 continues to move upwards, and the stops 28 now lift the punch 36, separate it from the ring 35 and the workpiece 37, which cannot move with the punch 36, as it is held by the ring 35. Thus, a sequential disassembly of a part of the die into its constituent elements occurred; punch 36 and ring 35 while removing the workpiece 37. The eccentric clips 24 release the lever arms 23 and the disassembled punch elements are folded onto the table 2. The remaining part of the punch is disassembled in a similar sequence, The device is configured for disassembling the next punch size by turning the gripping jaws 16 in the next fixed position. The application of the proposed device will allow the disassembly of dies of various sizes, mainly multi-seat with a consistent coaxial arrangement of dies and punches, by alternately repressing parts of the stamp with simultaneous extraction of the stamped products, increase labor productivity and get an economic effect of about 4 thousand rubles. Claim 1. Device for disassembling the press joints, comprising a cylinder mounted on the base, on the rod of which there is a traverse with lever arms hinged at its ends, as well as a table for placing the assembly to be disassembled, characterized in that in order to ensure dismounting of multi-part dies different sizes with the simultaneous extraction of stamped products, it is equipped with an additional gripping mechanism, made in the form of two Rolling Pin arallelnyh and located at their ends rotatable, replaceable, gripping the eccentric cams. 2. The device according to claim 1, characterized in that in order to fix the levers relative to the traverse, the levers are provided with eccentric clips mounted on them. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 465307, cl. In 23 R 19/02, 1973. 1 / ipat-z