Using this stamp
The invention relates to the processing of products by pressure. The stamp in the area of the tail portion of the product contains the node consisting of collets covering the end part of the product, interacting on the outer conical part with a glass placed at the bottom of the Shoe. Cup and collet spring-loaded elastic plate. While editing products glass regulates the desired location along the height of the collet, ensuring a tight grip on her end portion of the product and its perpendicularity to the flange or box-shaped part of the product. The invention allows for rigid fixation of the rear part of the device, thereby improving its quality. 2 Il. The invention relates to the machining of parts with pressure and is aimed at improving the quality of edits.Known referential stamps, includes collet or sleeve for fixing sections detail in the stamps. But, for example, in the casting of malleable cast iron after annealing, the size relative to the nominal can vary from zero to 2% growth.In addition, vary the size and specificity foundry (bulging, burns state humidity sand and others). These factors affect the ability rigidly fix or in the flange of them (for example, casting crankcase steering for car "Ural" (drawing - 375-3401015), which leads to Nezabravka it, and therefore, unusable.Known for forging the stamp on and.with. 467777 (CL 21 13/02), consisting of upper and lower halves with mounted at the lower part of the punch and ejector.Forging is presented here as a rear tubular part and a flange part.Fixing the end portion of the workpiece there is provided an insert resting on the annular plate.Insert the forging has a corresponding configuration in the form of a Central hole, the forging of which is removed by the ejector.Having in mind that the casting varies in size, the stable size of the hole it is in some cases will not be included, and if you are at the proper clearance, then securely fixed to not be.In this regard, the design of the stamp will not provide the task to edit castings.Famous stamp mainly for editing a curvilinear shape (see and. C. 1232354; MCI 21 13/02), comprising upper and lower plates with mounted on them working tools and means of orientation of the workpiece in the form of two conical rollers, between which is clamped the tail is davleniam, and not circular coverage that does not ensure the perpendicularity of the tail when the edit box to (flange) part of the casting, and therefore, the design of the stamp of the task does not solve.In addition, between the rolls is stable size instead of having to obtain a variable size depending on each casting.The closest analogue of the invention is using this stamp on and.with. SU 1232354 (21 J 13/02, 1986), containing the upper and lower shoes, the top and bottom of the matrix. However, this invention can provide a complete solution of the problem of reliable fixation of tail products with fluctuating dimensions as to width and length, as there is no automatic adjustment of the clamped object length, and therefore, will not be reliable clamping width, which is unacceptable.The technical result of the invention is rigid fixing the tail end products (castings), regardless of the fluctuations of its size in width and length.The delivered result is achieved that is known for using this stamp containing the upper and lower shoes, the top and bottom of the matrix, what's new is that it has a collet cone with narozniak surface, and the Cup - inner cone, turning into a cylindrical surface, and the glass is installed in the lower Shoe of the conditions mates with him on the cylindrical surface, the collet is placed in a glass and paired with him on a tapered outer surface and has the shape of the end portion vipralambha holes, and the collet and a glass of spring-loaded by means of elastic plates and installed with the possibility of axial movement.In Fig. 1 shows a General view referential stamp; Fig.2 - node 1 - section along the axis of the stamp in the area of node 1.Using this stamp consists of shoes: top 1 and bottom 2, collected with matrices: the top 3 and bottom 4. In the lower Shoe 2 includes a glass 5, the contacting inner conical surface with the collet 6, lying on the box 7, spring-loaded elastic plate 8.The Cup 5 at the base of the spring-loaded elastic plate 9, lying on attached to the Shoe 2 strap 10.Using this stamp works as follows.Korablino product 11 is embedded in the lower matrix 4 tail part 12 down, the end of which rests on the bottom of the collet 6, the spring plate 8 through the box 7 that provides pripodniatii product 11 on the lower part of the stamp. The Cup 5 is maximae collets 6 collet goes down, decreases in diameter and spans the sectors of the end part 12 of the product 11. In the case of receiving the increased thickness and the length of the end portion 12 of the product 11, the collet 6 will be located somewhat higher than the calculated size, height and pressure on the Cup 5 the outer surface, respectively'll get it down to the desired size, preventing hard thrust between the terminal and the box parts of the product that will eliminate the breakdown products 11.With the completion of the editing of the Cup 5 is raised to its original position, and the collet 6 under the action of the elastic element is disclosed, providing free viem articles 11 of the stamp.Then the operation is repeated.In the Foundry 1 JSC "Ural plant", referential stamps: MPS-942 for castings housing steering (Ed. 375-3401015) and MPS-1500 for castings bearing cap (ed. 236-1701040-A2) of the proposed design are experienced in production; the result is positive, the perpendicularity of the tail portion of the casting box to be guaranteed.
ClaimsUsing this stamp containing the upper and lower shoes, the top and bottom of the matrix, characterized in that it is provided with a collet with a conical outer surface, a cylindrical glass and electionday in the cylindrical surface, and installed in the lower Shoe of the conditions mates with him on the cylindrical surface, the collet is placed in the glass, paired with him on a tapered outer surface and has the shape of the end portion vipralambha holes, and the collet and a glass of spring-loaded by means of elastic plates and installed with the possibility of axial movement.
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