Die set for making corrugated sheet parts

FIELD: plastic working of metals, namely sheet forming processes and equipment.

SUBSTANCE: die set includes movable upper plate with members for fastening on press slide; punch; die with bending protrusions. Punch is mounted on die through rotary unit. Bearing surface of punch in zone of transmitting effort is cylindrical one. Slides are mounted on bearing surface of punch. There are grooves on lateral surfaces of punch. Upper surfaces of slides and grooves are equidistant relative to bearing surface of punch. Rollers mounted on jaws of plate are arranged in said grooves with possibility of motion. Fixing members for orienting sheet blanks are mounted in die.

EFFECT: enhanced accuracy, lowered number of operations at making corrugations on sheet blank with use of standard press equipment.

4 cl, 3 dwg

 

The invention relates to the processing of metals by pressure, namely, sheet stamping.

Famous stamp on author. mon. The USSR №592482, in which the forming of corrugations occurs under the influence of punches having the ability to move freely relative to each other due to their hinged mounting on the movable levers mounted on the spring polosko. When the stamp bending force depends on the efforts of the resistance of the spring and cannot be arbitrarily large, so the stamp can only be applied for processing sheets of small thickness, the flute height is limited by the stroke of the spring.

Famous stamp on author. mon. The USSR №1509154 adopted by the authors for the prototype, comprising upper and lower plates attached to them by the other one and the matrix, the upper plate is fixed to the rotary traverse non-standard media. Manufacturing of components in series and includes a preliminary bending of the wall of the flute and calibration the following.

The disadvantage of this stamp is the need for specialized equipment, which leads to additional costs; low productivity of the stamp due to the fact that in one stroke of the press is flexible and calibration of only one corrugation; low precision manufacturing of parts caused by the accumulation of the error in p is ramadani and hosting details. This stamp is not possible to make an item with random corrugation (one wall must be made with a right angle, as is used for fixation step). This stamp is missing the latch on the first step, which does not allow to obtain the same configuration of the first flute to get the details.

This invention solves the problem of creating a stamp based on standard extrusion equipment, which increases the accuracy of the corrugations on the plate part and reduces the number of technological operations to obtain the corrugations.

To achieve the technical result in the stamp for the manufacture of sheet parts with corrugations, comprising a movable top plate with fasteners on the press slide, a punch, a matrix with bending the tabs, plug attached to the matrix via the swivel arm, the base surface of the punch in the zone of the power transmission is made cylindrical, the supporting surface of the fixed punch runners, with the sides of the punch made the grooves, the upper surface of the rails and grooves are made equidistant support surface of the plug, the grooves are installed with the possibility of moving the rollers attached to the cheek plate on the matrix set the tabs for the orientation of the sheet blanks.

In addition, the grooves are made with the release of the and the working surface of the punch.

In addition, the runners are made of soft metal.

In addition, the runners are made of bronze.

A distinctive feature of the proposed stamp is the presence of the swivel unit mounted on the matrix that is associated with the punch, allowing rotation of the plug in the transmission of translational motion of the press slide through the supporting surface of the punch and plate that allows alternate bending all of the corrugations during rotation of the plug relative to the matrix and final calibration details at the end of the stroke per stroke of the press, to get better detail. The base surface of the punch in the zone of the power transmission is made cylindrical. On the support surface of the fixed punch runners, designed to transfer forces from the press through the base surface of the plate when converting the vertical translational motion of the press slide in the rotary movement of the punch. On the sides of the punch made the slots so that their top surface and the surface of the runners equidistantly supporting the cylindrical surface of the punch. In the slots for movement mounted rollers attached to the cheek plate to return the punch to its original position in the reverse course of the press. The matrix is supplied with clamps for the orientation of the sheet blanks.

To ensure the ecene security and ease of Assembly grooves made with access to the base surface of the punch, that ensures, if necessary, the exit rollers from engagement with the punch. The output of the rollers occurs in case of lifting of the press slide over the maximum height of the disclosure stamp, which prevents the stamp from damage.

The runners can be made of soft metal, such as bronze or other material providing a minimum coefficient of friction, which can significantly improve performance by reducing slip, humanisten of die wear, increasing maintainability and ensure a smooth rotation of the punch.

We offer you stamp for the manufacture of sheet parts with corrugations illustrated in the drawings, figure 1-3.

Figure 1 shows a stamp, being in the open position at the beginning of flexible parts; figure 2 shows the stamp, which is in the closed position at the end of the flexible sheet; figure 3 - a view A-a in figure 2.

The stamp for the manufacture of parts with the corrugations of the sheet blanks includes a rotary plug 1 is attached to the matrix 2 through the rotary node formed by the upper bracket 3 and the lower holder 4 connected by an axis 5. The top plate 6 with the fastening elements on the press slide (not shown). The plate 6 is fixed cheeks 7, on which is mounted a roller 8 mounted in the slots 9 of the punch 1. The grooves 9 are made with the release of 10 TNA is put on the surface of the punch 1. Bearing surface of the plug in the transmission area of the efforts made in the form of a cylindrical segment that is equal to or larger opening angle of the stamp that converts the translational movement of the plate 6, attached to the press slide, rotary movement of the plug 1 by means of sliding. On the supporting surface of the punch 1 is fixed rails 11 mating with a stove 6 surface 12 are equidistant support surface of the punch 1. The upper surface 13 of the slots 9 are made equidistant support surface of the punch 1. The matrix 2 is installed clamps 14 to the sheet blanks 15. In particular, the latch 14 can be performed with the slots to adjust the position of the sheet on the matrix. The mating surfaces of the plates 7 and 11 runners are a couple of slides designed to increase the wear resistance of the stamp, as well as facilitating smooth rotation of the punch. Runners 11 to reduce the sliding friction is made of soft bronze, and plate 6 made of steel, which allows to achieve a minimum coefficient of friction.

The stamp for the manufacture of parts with the corrugations of the sheet blanks is designed for use on standard extrusion equipment and works as follows. Sheet workpiece 15 is placed on the matrix 2 between the clamps 14, after which the force from the RAM of the press is through the mating surfaces of the plates 7 and runners 11 is transmitted to the other one 1 and converted into a rotary movement of the punch relative to the axis 4. There is a gradual one flexible corrugation and preliminary lifting of the material for the formation of the next corrugation, at the end of rotation of the punch 1 is the final calibration of all corrugations details. Upon the return movement of the press slide force through the rollers 7 is transmitted to the upper surface 13 of the grooves and the return of the punch 1 to its original position, thus breaking occurs the working parts of the stamp.

1. Stamp for manufacturing sheet parts with corrugations, comprising a movable top plate with fasteners on the press slide, a punch, a matrix with bending the tabs, characterized in that the punch attached to the matrix via the swivel arm, the base surface of the punch in the zone of the power transmission is made cylindrical, the supporting surface of the fixed punch runners, with the sides of the punch made the grooves, the upper surface of the rails and grooves are made equidistant support surface of the plug, the grooves are installed with the possibility of moving the rollers attached to the cheek plate on the matrix set the tabs for the orientation of the sheet blanks.

2. The stamp according to claim 1, characterized in that the grooves are made with access to the bearing surface of the punch.

3. The stamp according to claim 1, characterized in that the runners are made of soft material.

4. The stamp according to claim 3, characterized in that Pelosi is made of bronze.



 

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The invention relates to the processing of metals by pressure, in particular the bending (or stamping) of V-shaped articles from sheet blanks, and can be used for making parts of structures made of hard materials, such as molybdenum alloys

FIELD: plastic working of metals, namely sheet forming processes and equipment.

SUBSTANCE: die set includes movable upper plate with members for fastening on press slide; punch; die with bending protrusions. Punch is mounted on die through rotary unit. Bearing surface of punch in zone of transmitting effort is cylindrical one. Slides are mounted on bearing surface of punch. There are grooves on lateral surfaces of punch. Upper surfaces of slides and grooves are equidistant relative to bearing surface of punch. Rollers mounted on jaws of plate are arranged in said grooves with possibility of motion. Fixing members for orienting sheet blanks are mounted in die.

EFFECT: enhanced accuracy, lowered number of operations at making corrugations on sheet blank with use of standard press equipment.

4 cl, 3 dwg

FIELD: machine engineering, namely equipment for corrugating sheet materials.

SUBSTANCE: transformed mandrel has shaping surface of flat trapezoidal members jointly coupled one to other by means of flexible material to which said members are secured with use of adhesive. Shaping surface has flat members in the form of isosceles triangles arranged in rows between trapezoidal members and jointly coupled to them along saw-tooth folded-structure lines. Said isosceles triangles are oriented in such a way that their bases turned one to other are jointly coupled along zigzag lines of protrusions and their apexes form articulation joints along zigzag lines of recesses.

EFFECT: enhanced quality of articles.

3 cl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to devices for bending sheet material to form corrugations and it can be used in devices for manufacture of folding single curvature filler used in production of curvilinear panels for aircraft and other transport vehicles. For manufacture of corrugated filler with saw-tooth corrugations with creates and hollows in form of zigzag lines device is used which contains forming mandrel consisting of row of flat forming members interconnected by tight cloth glued to their lower surfaces to form hinge joints at edges of forming members and to provide at compression by forming mandrel saw-tooth corrugations with crests and hollows in form of zigzag lines, device to change position of forming members in space and vacuum bag. Flat members are glued on cloth to provide forming saw-tooth lines of corrugated filler between rows of hinge joints in form of isosceles triangles with common bases along zigzag lines of crests formed at compression of forming mandrel to form zigzag line of crests of corrugated filler. Crests of isosceles triangles opposite to common base are orientated along saw-tooth corrugation formed at compression of forming mandrel to form zigzag line of hollows of corrugated filler.

EFFECT: provision of regular cylindrical form in cross direction of assembled multiple layer panel with corrugated filler with preset radius of curvature without internal stresses.

2 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to devices for corrugating sheet material by bending and it can be used in production of light filler for multilayer panels, filter elements and packing material. Proposed device contains forming mandrel consisting of flat forming members connected to each other by means to tight cloth to form hinge joints at edges of forming members, transforming device and vacuum bag. Forming mandrel is of equilibrium relief make, and its hinge joints are made of elastically deformable material to change position of forming members in space owing to spring to provide transformation of forming mandrel together with blank from stretched flat state of forming mandrel into its intermediate equilibrium relief state. Said transforming device is made to provide stretching of mandrel from its equilibrium relief state into flat state and transformation of forming mandrel into maximum compressed state at application of compression forces to its edges in horizontal direction.

EFFECT: enlarged operating capabilities of device, improved quality of formed articles of material with elastic characteristics at flexing.

2 cl, 4 dwg

FIELD: plastic working of metals.

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EFFECT: possibility for producing complex-shape corrugations.

20 dwg

FIELD: mechanic.

SUBSTANCE: die contains forming and sizing punches installed on the upper platform, one of which is placed between compressed clamps, and a matrix installed on the lower platform. The clamps are installed with the possibility to contact the matrix bosses, coaxially to them.

EFFECT: provides rigid securing of corrugated part of sheet for non-deforming production of corrugated profile.

1 dwg

FIELD: technological processes.

SUBSTANCE: invention is related to technologies for production of light volume fillers from sheet materials and may be used in production of multilayer panels used in aircrafts, construction and other industries. Sheet billet is marked with folding lines, which create alternating pairs of zigzag strips with design value of size difference along width of strips in every pair, which represent combinations of sections in the form of parallelograms. Billet is transformed into relief condition and pressed to limit condition defined by complete mutual contact of corrugation facets, with creation of filler block with wedge-like protrusions in block areas. Then filler block is pressed along height to produce protrusions as a result of crumpling, and therefore, flat double-sided folds are created in their place - areas of variable width along length of zigzag strips joint within the limits of every facet. Afterwards filler block is stretched to preset condition defined by rated value of block height, and height of wedge-like protrusions is defined by value of size difference along width of zigzag strips assigned from condition of provision of required area of contact area.

EFFECT: strength and reliability of multilayer panel is increased, and its specific mass characteristics are improved.

2 cl, 5 dwg

FIELD: mechanics.

SUBSTANCE: invention relates to mechanical engineering, particularly to equipment which is designed to corrugate sheet rolled material by forming method. The invention may be used in lightweight aggregate production for multi-layer panels, filtering elements and packing materials. The forming punch with equal moulding flat elements is placed in the basis of the device. The said moulding elements are hinge connected with each other at their edges. There is also a facility changing the above elements position in the space. In addition, the device includes drum with rotary drive being installed on bearing supports, spring-loaded lever to bring forming punch into the flat state and a mechanism to press rolled material to the outer surface of forming punch. The forming punch is implemented with a closed strip being rolled on the said drum so that it can contact the facility changing moulding elements position in the space by their side line edges and upper surface of the moulding elements.

EFFECT: wide range of technological possibilities.

4 cl, 5 dwg

FIELD: technological processes.

SUBSTANCE: invention is related to the field of metal plastic working, in particular to accessories for corrugation of belt material. Device comprises the following components installed on the common base and connected to drive - reciprocal mechanism for belt feed with feeding frame, joined to mechanism of corrugation rib pitch control, stamping corrugating unit with matrices in the form of plates and puncheons in the form of combs, joined with mechanism of corrugation height control and mechanisms of its reciprocal motion in plane, which is perpendicular both to direction of initial belt motion and to direction of stamping unit motion along columns. Besides every matrix is made of two adjacent parts with section of every part in the form of angle bar shelf with alternating section and certain thickness. Adjacent matrices in every plate are installed as oppositely mirror-like and are joined with rivets with certain gap and pitch of rivets location. On the common base upstream and downstream the belt feed control mechanism, two identical mechanism units are installed, every of which consists of mechanisms of controlled fixed installation of belt installed one after another depending on belt width and controlled reciprocal motion of controlled fixed installation in direction perpendicular to direction of belts motion. Between mentioned units mechanism is installed for permanent belt braking.

EFFECT: increased resistance of matrices and quality of corrugated belts.

3 cl, 7 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to construction and may be used for production of variable-corrugation metal and nonmetallic sheet straight and curved elements. Billet is clamped between rotating female die and male die selected from different-gage and/or different-form male dies to match female die. Replacement or male and female dies does not require outage of process line.

EFFECT: higher efficiency of processing, expanded performances.

1 dwg

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