SU887152A1 - Portable device for unbending cotter pins - Google Patents

Description

one

The device relates to mechanical engineering, in particular car building, locomotive building, etc.

The pinch operation is necessary and is widely used in many devices, for example, in the headset of switches on main roads, on the routes of industrial enterprises, in the articulated joints of automobiles, brake systems, etc.

Splint is known using simple tools such as a hammer, screwdriver, chisel, etc.

The closest to the invention in terms of technical dryness and the achieved result is a portable device for unfolding the linch pins installed in the workpiece, containing a frame-shaped body, which on one side has a support for the workpiece and a lever-driven impactor with a return spring and an unbendor located opposite supports 1. In this case, the lever drive mechanism is designed as a spring-loaded striker with a locking check.

However, this device is inconvenient and can only be used in a limited area; moreover, using this device cannot accurately and quickly produce

shplintovaniye of details of various constructive form.

The aim of the invention is to improve the performance of the device.

5 This goal is achieved by making grooves for the cotter pin on opposite sides of the body, one of which intersects the plane of the support, and the other two are inclined to the smallpox of the first groove and are symmetrical to it, the impact mechanism is made in the form of an L-shaped lever, on the shoulder of which is set against the first groove, at one end of the bend, there is a clamp entered between

15 with a linch pin, and the other end interacts with the L-shaped lever.

The anvil is made removable, covering the shoulder of the L-shaped lever and having a different thickness of opposite

20 walls, and the subrack of the kinan arm of the L-shaped lever is adjustable in length.

FIG. 1 shows the proposed device; in fig. 2-section A-A in FIG. 1. The portable device includes a housing 1

25 in the form of a frame, having on one of the sides a support 2 for the workpiece, and a lever-driven percussion mechanism, made in the form of an L-shaped lever 3, on one arm of which there is an anvil, 4, and

30 friend - spring 5 return. Device

It also contains the bend 6, located opposite the support 2 and made in the form of a lever 8 swinging on the hinge support 7, at one end of which a wedge 9 is mounted and the other interacts with the Shaped lever 3. On opposite sides of the housing 1 there is a groove 10 for the cotter pin I, intersecting The support plane 2, and the grooves 12, inclined to the axis of the groove 10 and symmetrically arranged on the support 2. The anvil 4 is made removable and has a different wall thickness in the cross-section plane, which allows to expand the range of adjustment of the anvil 4 ohm it 90, 180 and 270 °. In addition, grooves 13 are made on the shoulder of the lever 3, which makes it possible to adjust the position of the anvil 4 depending on the size (diameter) of the part 14 (axis, shaft) using the locking ring 15. The housing 1 has a handle 16.

When preparing the device for operation, the housing 1 with the L-shaped lever 3 is turned on the part 14 so that the head of the pin 11 is placed in the groove 10 of the case 1, and the lower end of the pin is longer, just below the edge of the wedge 9 of the flexor 6. Shock rotary the anvil 4 is set to the desired height position, while the position of the L-shaped lever 3 is adjusted by installing the ring 15 into the annular groove 13 in accordance with the size of part 14. At the same time, the lever 8 of the bend 6 rests against the end of the L-shaped lever 3. ovo to work.

Upon impact of the anvil 4, the pin 11 goes down, at the same time the lever 8 is lowered and causes the wedge 9 of the bend 6 to move up and to the right when turning around the chip support 7, therefore the ends of the split pin are bent, lowered and fall into the slots 12 of support 2 of the housing 1.

After removal of the shock load, the spring 5, together with the L-shaped lever 3, returns the anvil 4 to its original position. After removing the housing 1 from the part 14 and the pin 10 through the through slots 12 and the groove 10, the pinch process is completed. The invention improves the working conditions, improves the quality of the pin and increases the productivity of the device.

Claims (2)

1. A portable device for unbending the cotter pins installed in the workpiece containing the frame-shaped a body having a support for the workpiece on one of the sides and a lever-driven impact mechanism with a return spring and a bend-over opposite the support, characterized in that, in order to increase productivity, grooves for the cotter pin are made on opposite sides of the body, one of which intersects the plane of the support , and the other two are inclined to the axis of the first groove and symmetrical to it, and the percussion mechanism is made in the form of an L-shaped lever, on the shoulder of which an anvil is mounted against the first groove, on one end of the bend n entering between the splint mustache, and the other end interacts with the L-shaped lever. 2. The device according to claim 1, characterized in that the anvil is made on a removable, covering the shoulder of the l-shaped lever and having a different thickness of the opposite walls, and the spring-loaded shoulder of the L-shaped lever is adjustable in length. Information sources, taken into account in the examination 1. USSR author's certificate No. 578151, cl. B 21J 15/14, 1977 (prototype). A 1/1 J F // g.