Instrumental node for forming heads parts rod type


(57) Abstract:

Usage: metal forming, namely the manufacture of cold-formed tool for upsetting a large amount of heads parts rod type. The inventive instrumental node contains a floating punch, which is made under the palm rest of the stepped cavity. In most parts of the stepped cavity posted by spring and guide Bush. The end face of the bushing flange is pressed by a spring to a floating punch. The emphasis that is designed to transfer axial strengthening stalkivatel, installed inside the guide tube. When you move the focus remains alignment with stalkivatel. 1 Il.

The invention relates to the processing of metals by pressure and can be used in the manufacture of cold-formed tool, in particular for precipitation of a large amount of heads parts rod type.

Famous instrumental node for forming the heads of a large volume containing satellitel, floating punch, movable along the axis of the several springs, and the matrix [1]

A disadvantage of the known instrumental node is complex, bulky design. Longitudinal movement platen with a large outer diameter, that significantly increases the size and metal of all instrumental node.

The closest to the essential features is instrumental node for forming heads parts rod type, containing a spring interacting with the floating punch, focus and satellitel [2]

The disadvantage of this tool node is in a low resistance of its constituent parts. The emphasis in the process of landing moves freely in contact with the spring and has no direction on the cylindrical surface. If this is not ensured alignment of emphasis regarding stalkivatel. The axis of focus intersects with the axis of stalkivatel, the end face plane of focus becomes non-parallel to the plane of the end face of stalkivatel, there is a strong beating of end stops, leading to breakage stalkivatel. Broken particles stalkivatel, once in the spring, deform it turns.

The basis of the invention the task is to create convenient in use instrumental node for forming heads parts rod type with simple and robust design, ensuring a high quality of precipitation heads of large volume and predetermination node for forming heads parts rod type, contains a floating punch, satellitel, the stop and the spring located in the cavity of the floating punch, to prevent breakage of stalkivatel and failure of the spring it has a sleeve, the emphasis has the ability to move inside the sleeve along the axis while maintaining alignment with stalkivatel, and the plug has a stepped hole for accurate placement of the guide sleeve in the part of the cavity of larger diameter.

The use of such a tool site as possible with the prior forms of procurement for further planting in the open or closed die, and the settling of the final form of the head of a large volume.

The drawing shows a General view of the instrument node in a longitudinal incision in the final moulding of the head.

Instrumental node for forming the head of the blank 1 includes a floating punch 2, which is made under the palm rest step 3 cavity 4. In most parts of the stepped cavity posted by spring 5 and the guide sleeve 6, the end face of the flange which is pressed by a spring to a floating punch. Emphasis 3, for transmitting axial forces to stalkivatel 7, is installed inside the guide sleeve with the>At the initial moment of landing under the action of the spring 5 guide sleeve 6, which is in most part a stepped cavity 4 of the floating punch 2, is brought together with him in the extreme forward position. Then the floating punch 2 covers the workpiece 1. Upon further movement of satellitel 7 under the influence of the stop 3 brings the workpiece.

The use of instrumental node will significantly increase the reliability of cold-formed machine in work by preventing the possibility of breakage of stalkivatel spring and plunger.

Instrumental node for forming heads parts rod type, containing a floating punch, satellitel, the stop and the spring located in the cavity of the floating punch, characterized in that it is provided with a guide sleeve, and the emphasis placed can move inside the sleeve along its axis while maintaining alignment with stalkivatel when moving, while the cavity of the punch made speed for precise placement of the guide sleeve in the part of the cavity of larger diameter.


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FIELD: metal working.

SUBSTANCE: hard alloy matrix has casing, bushing pressed in the case and hard alloy insertion. Bushing has multifaced hole. Hard alloy insertion is composed by several sections made in form of trapezoidal-section prisms which have cut angles at their non-working edges. Number of sections corresponds to number of faces of item to be headed. Cuts of angles are made symmetrically to faces of working edge. Slits are made in several places of multifaced hole bushing at the ponts where faces cross each other.

EFFECT: improved resistance of matrix; simplified assembly.

3 cl, 1 dwg

FIELD: plastic metal working, possibly manufacture of rod parts with heads.

SUBSTANCE: method comprises steps of placing portion of heated measure blank in movable die spring-loaded in axial direction and forming thickened portion. Die is mounted with possibility of motion in direction coinciding with that of punch motion. Additional step is realized for forming rod due to placing portion of blank in one-piece die with technological gap. Before forming thickened portion and rod, free heading of the whole blank is performed. Then die is moved and simultaneously first stage of heading thickened portion and step of rod forming by closed heading are realized. Closed heading is performed due to moving portion of blank in direction inverse relative to motion direction of punch and die. Then thickened portion is headed in fixed position of die.

EFFECT: possibility for making rod parts with thickened portion by means of simple technological tooling in high-speed automatic presses.

3 cl, 6 dwg, 2 ex

FIELD: plastic working of metals, possibly manufacture of Г-shaped parts from sheet blanks.

SUBSTANCE: method comprises steps of placing two sheet blanks in die and deforming them by means of vertically descending punch for forming two Г-shaped parts with flange arranged normally relative to rear flat face of parts. Blanks are subjected to upsetting while they rest one upon other by their flat faces.

EFFECT: enhanced efficiency of process, simplified design of fitting.

1 dwg

FIELD: construction equipment.

SUBSTANCE: rod ends are made with thickenings which have screw. For rods joining joiner is used with inner screw. Thickenings on rod ends are received on forging press fitted with equipment for cold heading of reinforcing rod ends. As stated device for disembarkation forging die is used, having longitudinal channel along the length for operation security with long reinforced rods.

EFFECT: provision of process capability widening of used equipment with serviceability and economic feasibility preservation.

20 cl, 12 dwg

FIELD: technological processes.

SUBSTANCE: for parts production cold-upsetting tool is used in the form of multi-position unit. Unit includes five positions and contains puncheons, thrusters, assembled matrixes and strippers. Assembled matrix in the fourth position is installed motionlessly and is equipped with reduction step at the insert. Stripper of the fourth position is arranged with the opening, in which spring-loaded puncheon is installed. Cut billet is subjected to setting and calibration with leveling of butt ends and formation of conical marks. By means of further billet setting head is created. Then opening is pressed out in the billet and its external diameter is reduced with formation of step. Reduction of diameter is carried out in motionless matrix with insert, which has reduction step. For that purpose billet is displaced until it thrusts stripper with spring-loaded puncheon with its butt-end. Puncheon is installed in billet pressed out opening. Later billet is displaced together with puncheon and stripper via reduction step of matrix. After that billet opening is interweaved.

EFFECT: expansion of technological resources.

2 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: end section of billet is heated and deformed in die block. At that at first metal is accumulated for molding of rod head. Accumulation is done in at least three stages in puncheon cavity. Volume of this cavity is selected provided that its value is reduced from the first stage of deformation to the last one in interval that makes 1.2÷1.1 from volume of finished rod head. Then nipple part of head is molded in puncheon cavity with provision of its profile and geometric dimensions. Remaining part of rod head external surface is molded in matrix cavity.

EFFECT: higher quality of produced items with simultaneous simplification of production and reduction of expenses.

2 dwg

FIELD: technological processes.

SUBSTANCE: device comprises fixed plate for installation on press table, cylinder with semi-matrices and upper movable plate with shape puncheons. Upper plate is connected to press slider by means of tailpiece. Gasket with inclined surface and guides is rigidly fixed to stationary plate. Cylinder equipped with mechanism of its sliding moves in guides. Device is provided with hold-down connected to upper movable plate and polyurethane component. Semi-matrices have cavity, where pusher is installed. Working opening of semi-matrices is provided along extruded bar within the limits of the upper allowance for its manufacture. Upper hold-down and semi-matrices have cone to arrange stock hold-down together polyurethane component, whenever upper plate moves down.

EFFECT: higher efficiency.

4 dwg

FIELD: technological processes, metal working.

SUBSTANCE: invention is related to metal plastic working and may be used to manufacture products from lengthy billets with relative length of extruded part that exceeds the length permissible under condition of longitudinal stability. Area of extruded part of billet adjacent to clamping part of split matrix is heated up to maximum forging temperature. This area has relative length, which does not exceed length permissible as per condition of longitudinal stability. Moreover, heating is provided for end section of extruded part by means of heat transfer until minimum forging temperature is obtained on its end surface. Billet is installed in clamping part of split matrix with installation of deforming puncheon and end section of billet extruded part in movable guide bush. Bush is aligned with split matrix. Then edging is carried out by free upset, and product is shaped in single stage.

EFFECT: improved quality of manufactured products and efficiency of their manufacturing process.

4 dwg, 1 ex

FIELD: metallurgy.

SUBSTANCE: invention refers to metal processing by pressure and can be applied in production of multifacet items, such as nuts. Die includes cartridge, intermediate bushing, bushing with multifacet hole, and soli alloy insert. Insert includes separate sections in the numbers equal to number of upset item facets. Sections are made in the form of prisms with trapezoid cross-section with beveled corners at non-operational ends. Insert section corner bevels are symmetrical to operational end facets. Bushing with multifacet hole features cuts at facet junctions. Intermediate bushing is housed tightly in the case and clamps cut bushing with multifacet hole. Insert section thickness b is selected out of 1/3S ≤ b ≤ 2/3 S range, where S is turnkey size of the upset item.

EFFECT: enhanced bushing durability, solid alloy saving.

1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used for producing oilwell tubing. Pipe-end upsetting is carried out by forming outer surface of upset part and zone arranged behind upset part, as well as inner surface of upset pipe-end. Forming of upset part outer surface and zone arranged there behind, is performed using upsetting die. Said die has cylindrical and taper sections to form upset part and taper section to form zone behind upset part. Upset pipe-end inner surface is formed by upsetting punch with section for aforesaid forming. OD of said section exceeds by 0.6-1.5 mm the rated ID of oilwell tubing smooth part. Note here that upsetting die and punch are used with due allowance for thermal expansion factor of upset metal making 1.0065 -1.0085.

EFFECT: upset pip-ends that do not require additional machining.

2 dwg