Molding tooling for the manufacture of parts type of terminals with head

 

The invention relates to the processing of metals by pressure and can be used to obtain details of method of planting on forging machines and cold machines. Forming a snap-in contains a matrix with the forming cavity and punches. Punches executed with the guides, and the matrix has guide grooves to move them. Mentioned guides punches and the guide grooves of the matrix are arranged in such a manner that during movement of the punch creates a closed volume for the deformation of the workpiece material. As of punches can be used to punch plated cone and forming punch. Each of these plungers is equipped with a sliding spring-loaded rod. Punches can be performed with a compensating device for increasing the volume of the molding cavity formed by the punch and the die when the workpiece having a volume which exceeds the calculated value. The snap may be a coil for preheating the high-frequency currents of the workpiece before cutting from the Bay or rod. The result is improved quality of the received parts, reducing the complexity of their manufacture. 4 C.p. f-crystals, 2 Il.

Closest to the technical nature of the claimed invention is a molding tooling for the manufacture of parts like rod with a head method landing on forging machines and cold vending machines containing matrix with the molding cavity and punches (SU 1632600 A1, 07.03.1991, B 21 J 5/08).

A disadvantage of the known snap-in is the occurrence of the overflow between the adjoining end faces of the punch and die.

Technical problem which the claimed invention is directed, is to improve the quality of the parts, reducing the complexity of their manufacture.

To solve the problem in known molding tooling for the manufacture of parts like rod with a head method landing on forging machines and cold vending machines containing matrix with the molding cavity and punches, the last made with the guides, and matrix - with guide slots for movement of the guides of the punches, these guides punches and the guide grooves of the matrix are of the conditions of establishment when the movement of the punches closed volume for the deformation of the workpiece material.

As the punches used punch abranson plated cone and forming punch can be made with a compensating device for increasing the volume of the molding cavity, formed by the punch and the die when it is submitted to the forming cavity of the matrix blanks, which exceeds the calculated value.

Matrix pillow cold forging machines and machines are made with two holes, the depth of which is determined from the condition of ensuring the punches as they move at idle.

Snap can be equipped with an inductor for pre-heating to forging temperature by high frequency currents of the workpiece before cutting it from the Bay or rod.

The invention is illustrated by drawings, where:

in Fig.1 shows a molding tooling with punch dialer cone;

in Fig.2 - forming a snap with forming punch.

Molding tooling for the manufacture of parts like rod with a head method of planting, which can be embedded in various forging machines and cold machines, contains a matrix 1 with the molding cavity 2, the punch 3 dialer cone with the guide rail 4, a forming punch 5 with the guide rail 6. Punch 3 dialer cone provided with a sliding rod 7, the spring loaded by a spring 8, which has a sliding stop 17 with pointed head part, a spring 18 and companeros what Euston 12. In the matrix 1 has guide grooves 13 to move the rails 4 and 6, respectively, the plungers 3 and 5. Specified molding snap-in allows you to make part 14 for the two transitions, i.e., for two strokes.

Forming the snap-in is as follows.

When the movement of the punch 3 dialer cone and forming punch 5 forward due to the location of their guides 4 and 6 in the guide grooves 13 of the matrix 1 is provided by the circuit volume, in which the deformation of the workpiece 15. Before sliding the stop 17 and a spring 18 (a force which is sufficient to overcome the friction of the workpiece in a feed “hand” of the machine) pushes the workpiece 5 in the matrix 1. It is inevitable inaccuracies in the segment of the workpiece 15 rebound from the stop, bevel cut, Burr), which changes its volume and leading to tool breakage, are compensated by the compensating device 9 and 12, which may be in the form of a package of Cup springs. The force of the Belleville springs is slightly higher than the required deformation force (landing) of the workpiece. When exceeding the efforts of the Belleville springs of the latter, compressing provide the desired increase in shaping the volume of the punch and the matrix. Takini 7 and 10 under the action of springs 8 and 11 push the product (item 14) from the punches, leaving him in the matrix, and sliding the stop 17 under the action of the spring 18 returns to its original position. After the second finishing blow, the product is ejected from the die ejector 16, which is an element of the forging machine or cold machine.

Due to the fact that forming the snap-in strain occurs in a closed volume with the exception of the offset axis of the punches relative to the axis of the matrix, it is possible to reduce the number of transitions, no surgery object scrap, increases the accuracy of the obtained products.

Compact molding snap-in allows you to embed it inductor for heating billets, giving the opportunity to significantly improve the degree of deformation and to reduce the required deformation force, and the presence of compensating devices contributes to improving the reliability of equipment.

Claims

1. Molding tooling for the manufacture of parts like rod with a head method landing on forging machines and cold vending machines containing matrix with the molding cavity and punches, characterized in that the punches executed with the guides, and matrix - e.g. is engaged in the grooves of the matrix are of the conditions of establishment when the movement of the punches closed volume for the deformation of the workpiece material.

2. Snap on p. 1, characterized in that as the plungers used punch plated cone and forming punch, each of which is equipped with a sliding spring-loaded rod.

3. Snap on p. 2, characterized in that the punch plated cone and forming punch is made with a compensating device for increasing the volume of the molding cavity formed by the punch and the die when it is submitted to the forming cavity of the matrix blanks, which exceeds the calculated value.

4. Snap according to any one of paragraphs.1-3, characterized in that the matrix pillow cold forging machines and machines are made with two holes, the depth of which is determined from the condition of ensuring the punches as they move at idle.

5. Snap according to any one of paragraphs.1-4, characterized in that it is provided with an inductor for pre-heating to forging temperature by high frequency currents of the workpiece before cutting it from the Bay or rod.



 

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