RU2496597C1 - Device for transfer of billets over die impressions with vertical parting of female dies - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to automation of multipass stamping of complex parts and can be used for transfer of heavy billets like log-length bar or rod in juxtaposition forges with vertical opening of female dies. Proposed device comprises post with flexible suspension to support billet transfer drive. Said mechanism comprises air cylinder and carriage. The latter comprises lateral thrusts and roller arranged at its front to support flexible suspension. Said carriage is coupled with air cylinder to reciprocate horizontally. Besides, aforesaid post accommodates sliders, first and second air thrusts, front thrust and detachable spacers. First and second air thrusts are driven by independent air cylinders.

EFFECT: higher reliability and safety, ease of operation.

6 cl, 4 dwg

Description

The invention relates to automation of the multi-jaw stamping process of complex parts and can be used in devices for transferring heavy workpieces, including workpieces in the form of a long rod or rod, in multi-position forging machines with a vertical die connector.

A device is known for transferring a workpiece to positions of a multi-jaw stamp, comprising a housing, support arms, pivotally connected to the carriage, and support arms, articulated with a beam, the arms are articulated with drive arms kinematically connected to the crank shaft of the press, the base grips having two planes clamping blanks are fixedly attached to the carriage, and gripping strips having one clamping plane are rigidly connected to levers pivotally connected to the carriage, the free ends of the levers are provided with a roller E interacting with abutments, the abutments and some rollers are arranged at the same height, and other rollers and stops - on the other (see RF application for invention №920064480, IPC B21D 43/00, publ 10.03.97 g..).

The device is not adapted for carrying heavy workpieces in the form of a long bar of various sizes in a vertical plane.

Closest to the claimed device is a device for transferring workpieces along streams of a multi-position stamp, containing a gripping mechanism in the form of a hook mounted on a flexible suspension, a gripping mechanism drive in the form of a first pneumatic cylinder of vertical lifting with a piston and a rod, and also means for fixing the gripping mechanism at positions dies, including a groove crawler with an upper stop and a spring-loaded latch driven by a piston of the second pneumatic cylinder (see S.M. Nesvit, OI Nyunko “Horizontal full-time machines and automation ", Mechanical Engineering, Moscow, 1964, str.190-193, fig.103 - prototype).

The disadvantages of this device are:

- large dimensions and weight;

- limited technological capabilities due to the movement of the hook only from top to bottom;

- a large downtime of equipment when changing to stamping a new part:

- inconvenience during repair and commissioning.

The invention solves the problem of creating a compact universal device for transferring workpieces with simple adaptation to various types of dies or to different parts, or to changing the number of positions in the die with the optimal number of structural components, as well as increasing productivity by reducing the time of the technological cycle, expanding technological capabilities and reducing the complexity of the readjustment.

The technical result of the proposed device:

- to increase work efficiency, reliability and safety of use, simplicity, ease of use, low cost;

- in the speed of readjustment for the manufacture of other parts;

- the possibility of combining with various stamps.

The technical result of the invention of the device is achieved by the fact that in the device for transferring workpieces along brooks of a stamp with a vertical matrix connector, comprising a rack-mounted mechanism for moving the workpiece on a flexible suspension with a pneumatic cylinder, crawlers, a first pneumatic stop and a front stop, a second pneumatic stop and removable spacer elements are introduced , the mechanism for moving the workpiece is made with a carriage, the first and second pneumatic supports being driven by independent pneumatic cylinders, the carriage is made with side stops and a roll com in the front portion for attachment and a flexible suspension is connected with a pneumatic cylinder, with a horizontal reciprocating movement for transferring the workpiece on the die streams.

Removable spacer elements are strips of different widths to ensure the movement of the workpiece at a distance between the streams of the stamp.

It is preferable to connect the flexible suspension to the drive of the workpiece moving mechanism through a deflecting roller, a tension drum and rollers fixed to an arm mounted on a rack.

It is advisable to move the workpiece with a hook on a flexible suspension in the form of a cable, and the hook axis can be mounted on the stamping axis in the center of mass of the workpiece.

It is preferable in the carriage to place side stops on two opposite sides through spring dampers and have shaped surfaces.

It is advisable to perform a swivel stand with the console.

When conducting patent research, no solutions were found that are identical to the declared one, and, therefore, the proposed solution meets the criterion of "novelty." The invention does not follow explicitly from the known solutions, therefore, the proposed invention meets the criterion of "inventive step".

Figure 1 shows a device for transferring workpieces along the streams of a die forging with a vertical die connector.

Figure 2 depicts a fragment of the housing.

Figure 3 shows a section aa in figure 2.

Figure 4 shows a top view of the carriage.

Figure 1-4 adopted the following notation:

1 - rack (made rotary with the console);

2 - case (on the console of the rotary rack 1);

3 - hook;

4 - cable;

5 - carriage;

6 - side stops 6 (carriage 5);

7 - spring damper (carriage 5);

8 - roller (carriage 5);

9 - pneumatic cylinder (for horizontal reciprocating movement of the carriage 5);

10 - creepers;

11 - the first pneumatic stop;

12 - second pneumatic stop;

13 - front emphasis;

14 - the first spacer element (removable);

15 - second spacer elements (removable);

16 - a tension drum;

17 - deflecting roller;

18 - rollers (mounted on an arm);

19 - pneumatic distributors;

20 - electrical distribution box;

21 - the first screw;

22 - the second screw.

A device for transferring workpieces along brooks of a stamp with a vertical matrix connector comprises a rack 1, made rotatable with a console and a housing 2, a gripping mechanism for the workpiece in the form of a hook 3 on a flexible suspension in the form of a cable 4, and its drive comprising a carriage 5 mounted in the housing 2, made with side stops 6, spring dampers 7, roller 8 and connected to a pneumatic cylinder 9 with the possibility of horizontal reciprocating movement, crawlers 10, first and second pneumatic supports 11, 12 driven by independent pneumatic cylinders Ndrov, emphasis 13 front, first and second spacer elements 14, 15, made removable in the form of strips of different widths. A tension drum 16, a deflecting roller 17, an arm with two rollers 18, pneumatic distributors 19 and an electric distribution box 20 are also fixed on the rotary console 1.

In the upper horizontal grooves of the housing 2, the first and second pneumatic supports 11, 12, the first and second spacer elements 14, 15 are installed in the form of strips, the front stop 13, which are axially fixed by the first and second screws 22 and 23. In the middle groove of the housing 2 is installed carriage 5 with side stops 6 and a roller 8 in the front. To reduce jerking at the beginning and end of the stroke, the side stops 6 are connected to the carriage 5 on both sides through spring dampers 7 and have shaped surfaces. The hook 3 with a cable 4 through a system of rollers (deflecting roller 17 - rollers 18 - roller 8 of the carriage 5 - rollers 18) is fixed on the tension drum 16.

A device for transferring blanks along the streams of the stamp works as follows. Initially carry out adjustment. By turning the rack 1 and adjusting the roller 17, the deflecting vertical axis of the hook 3 is set on the stamping axis in the center of mass of the workpiece. The rotation of the tension drum 16 hook 3 is set to the upper position. The lower position is set by the front stop 13 with the help of removable first and second spacer elements 14, 15 and the first screw 21. The first and second pneumatic supports 11, 12 are installed at the estimated distance from the front stop 13 with the help of removable first and second spacer elements 14, 15 and are fixed the second screw 22. On the control panel the algorithm for switching on the pneumatic valves 19 is selected by selecting three parameters: the number of positions, the direction of stamping, the first, second pneumatic supports 11, 12 and the front stop 13 are used.

Moving the hook 3 with the workpiece along the brooks of the stamp is carried out by a cable 4 through a system of rollers using a pneumatic cylinder 9 with a carriage 5 to the first and / or second pneumatic supports 11, 12 and the front stop 13 in accordance with the selected algorithm of operation by successively pressing a separate pedal. When the pneumatic valves 19 are turned on, the sprockets 10 of the first and second pneumatic supports 11, 12 are lowered and the stroke is blocked by the side stops 6 of the carriage 5. The sequential inclusion of the first and / or second pneumatic supports 11 and 12 allows you to have from 2 to 4 fixed positions of the hook 3.

The proposed device allows the transfer of workpieces weighing up to 100 kg and a diameter of up to 110 mm.

The horizontal design of the device for transferring workpieces along the brooks of the stamp made it possible to significantly reduce the dimensions, weight and complexity of manufacturing, improve access for commissioning and maintenance. The presence of the deflecting roller 17 allows you to work with blanks of different lengths with their suspension in the center of mass.

The implementation of the carriage 5 with two spring dampers 7 and a shaped thrust surface allows you to reduce jerking and shock at the beginning and end of the stroke. The presence of two independent first and second pneumatic supports 11, 12 allows you to rebuild the device to work with 2, 3 and 4 by means of hand dies with different directions of stamping.

The proposed device is characterized by low weight and compactness, wide technological capabilities, quick changeover to workpieces of various sizes and the ability to use hot stamping dies with a vertical connector of dies of various designs.

Claims (6)

1. A device for transferring workpieces along brooks of a stamp with a vertical die connector, comprising a mechanism for moving the workpiece on a flexible suspension with a pneumatic cylinder placed on a rack, crawlers, a first pneumatic stop and a front stop, characterized in that it is equipped with a second pneumatic stop and removable spacer elements, the workpiece moving mechanism is made with a carriage, the first and second pneumatic supports are driven by independent pneumatic cylinders, and the carriage is made with side stops and with its front part Olika for fastening a flexible suspension and connected to a pneumatic cylinder, with a horizontal reciprocating movement for transferring the workpiece on the die streams. 2. The device according to claim 1, characterized in that the removable spacer elements are made in the form of strips of different widths to ensure the movement of the workpiece at a distance between the streams of the stamp. 3. The device according to claim 1, characterized in that the flexible suspension is connected to the drive of the workpiece moving mechanism through a deflecting roller fixed to the rack, a tension drum and rollers mounted on the bracket. 4. The device according to claim 1, characterized in that the workpiece moving mechanism is made with a hook on a flexible suspension in the form of a cable, the hook axis being configured to be mounted on the stamping axis in the center of mass of the workpiece. 5. The device according to claim 1, characterized in that the side stops of the carriage are located on two opposite sides through spring dampers and have shaped surfaces. 6. The device according to claim 1, characterized in that the rack is made rotatable with the console.

Images