SU3128A1 - Machine for making forged products, e.g. rail crutches - Google Patents

Description

In the proposed machine, the production of forged products is carried out using a movable carriage with two or more stamps, in one matrix form, for one revolution of the machine shaft. In the already known forging machines, matrices with two or several matrix forms are used, in which the manufactured item is placed in series, subjected to the breaking action of different stamps, and only one racking takes place per revolution of the machine shaft. Due to this, the object of manufacture before each new crust should be placed in a different matrix form and moved each time as far as possible, as far as the second, third, etc. metal stamps should be unchained. The greater the number of stamps and matrix forms, the more times you have to open and close the latter and the more turns the machine must make. before the product is ready. In the present invention, multiple product layouts with two or more stamps occur during one revolution of the machine shaft; in addition, the workpiece, during the entire process of disassembly, remains in the same matrix form motionless. As a result, the design of the machine will be simplified, and its productivity will increase; in addition, for the assembly, the product has to be heated only once. FIG. 1 shows a top view and a partial section of an exemplary machine for manufacturing rail crutches; FIG. 2-section along line AB of FIG. 1, in FIG. 3-section along the line CD of FIG. 1, in FIG. 4 is a rear view of FIG. 3, in FIG. 5-12 - details in an enlarged scale.

In the machine frame a two matrices b and c are placed, one of which c can be moved to the side

l Atrits l along the guides d of the machine frame a. Each matrix has in front of a windowed surface e, protruding half the thickness of the product, forming a wedge when folded, the length of icoToporo should be the greater, the longer the pointed part of the product. In addition, in the matrix (from the opposite side, a depression is made depending on the shape of the product head. The movable matrix; (Figs. 1 and 3) is connected to the knee levers system, which consists of the two arms U and the slider h. One of these levers are attached to the matrix c, the other to the safety bracket /, both of which are connected to the slider A. The latter works on the guides A- attached to the connecting rod I, which is equipped with a roller n and receives movement from the cam pulley mounted on the engine shaft p. Behind the matrices b and (mouth Anovana mobile carriage}), roller, which q is operated from a city pulley cam mounted on the machine shaft. The carriage has guides with a slider, on which various clamps / and f of various lengths are inserted. One way or another is used to move the slider to either side. In turn, the lever and is connected to the machine shaft by means of a groove pulley w.

The ongoing B treatment material is cut from the iron bar in double length and then split in half by an oblique cut, as shown in FIG. 5 and 7, as a result of which each segment receives a one-sided sharpening; thanks to this division, the material is saved. The material thus prepared, for the manufacture of products / with forged tin, is preheated and, when the matrix is open (Fig. 8), is laid one by one into the matrix b, as indicated in FIG. 5 and 7. After that, the shaft of the machine is rotated and the matrix c, moving from the cam pulley, moves through the system of the crank levers.

left, in the direction of the matrix b. In this case, the one-sided pointed end of the article being processed changes and takes the correct shape of the pointed point shown in FIG. 1, 10 and 11; at the same time, the product is tightly clamped between the 10 and 6 b and c. Then the carriage p, driven by the cam pulley, moves in the direction of the dies, at which the head is stamped. Under the action of the first plug the head takes the form shown in FIG. 10. Then, the carriage p is moved back, using a spring or ocodoio device, not shown in the drawing, but the slider s, under the action of a slot washer w and a lever, and moved so that the second raskovochny stamp t stood, respectively, against the product. Then the carriage p moves forward again, and the stamp / - makes the final unpacking of the head of the product, which takes the form y shown in FIG. 11 and 12. After this, the carriage p moves back again and the slider s to the side, i.e. in the original position. The matrix c, thanks to the reverse movement of the connecting rod I, also moves aside. The matrix form, closed at the time of disassembly, opens, and the completely ready crutch s (Fig. 11) drops out of the magic, giving way to the next one. Depending on the shape of the dies and the alignment stamps, the heads can be forged not only for one-sided formation, but also for the concentric shape.

When forging large heads, in such products, where the length of the rod is subjected to disassembly, is large compared to its cross section, for example, more than three times, it can happen that when fabricating matrices, as shown in FIG. 5 and 6, the material will flex or flatten into a shapeless mass. To avoid this, matrices made according to FIG. 7 and 9. The base plate b in this case is supplied with a ustupol 1 or with an edge to which the product to be manufactured / is pressed during disassembly; in turn, in the matrix with,

a ledge or rib is also made, which, when put together, also contributes to the formation of the correct head shape. The delimiters t and i enter the matrix form only when the matrices b and c are perfectly pressed together, as shown in fig. 7 and 9, and performs the cut-off at the time when the article encased in the matrix form is tightly wrapped around both dies, as a result of which the correct operation of the stamps is completely guaranteed.

In the manufacture of other kinds of products, it may not be necessary to have two, but several stamps. Then the slider s does not make two, but several movements to the side, the carriage p is the same amount of forward movement, however, the full and final production of the products is still performed in one matrix form and only in one turn of the machine (shaft. Shifting the product from one When the device of the system of cranked levers d-h in connection with the matrix with pressure (when pressing the matrix) is perceived by the lever, the machine shaft is unloaded, and the machine works easily. shestvleno also in another way, eg., by dvuplechnogo lever and m. p.

SUBJECT OF P. T E B T L.

A machine for the manufacture of forged products, for example, rail crutches, with a carriage moved by means of a rotating cam pulley, characterized using a stationary matrix B with a movable lip with a movement from rotating the cam pulley, mounted on an axis, which also serves to move the carriage with a slider S, equipped with two alignment stamps. and i and receiving a transverse movement from the pulley iv with the shaped groove and the rocker arm m inserted into it with one shoulder, the other arm of which is connected with the connecting rod and the slide, the carriage itself, using a double cam pulley g (Fig. 3), has twice reciprocating movement at one turn of the pulley, with the aim of gradually unchaining the head of the product.

Tapo-lithograph Red Pechatnik, Peneigrad, Int., 7i.

To the patent of the foreign company / YCTflB Vilka-chain

and mshshind FF BRIKR No. 3128

Fig, 10.