Possesses the high-precision stamping mould assembly of function of safety protection
Technical field
The present invention relates to a kind of diel, particularly relate to a kind of high-precision stamping mould.
Background technology
Our discovery when carrying out punching press to tabular material, there is potential safety hazard in existing diel, when the punch in upper die component moves towards the die in lower mold assemblies, it, owing to perception whether cannot there is object beyond workpiece, is therefore very easy to the human body be strayed into or also thoroughly do not leave near workpieces to cause damage; Avoid this situation, current mentality of designing starting switch is accomplished do not touch by mistake or arrange two buttons presses the structure that could start simultaneously; This structure brings the complexity of operation, and owing to not being directly determine whether to there is foreign matter in Stamping Area, still there is potential safety hazard;
In the diel assembly that we adopt at present, the motion of the relative lower mold assemblies of its upper die component is that cylinder or motor drive; Motor-driven precision is high, and efficiency is low; The efficiency of air cylinder driven is high, but it is unbalanced to there is stamping press, some are needed to carry out punching press keep namely not needing workpiece to rush through hole, but flat panel workpieces is struck out the structure of container of cup moulding, it needs the process of stretcher strain gradually, and current cylinder power can exist the defect of low precision.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of high-precision stamping mould assembly possessing function of safety protection is provided, it possesses reliable hydraulic power, punch can be changed simultaneously, possesses reliable function of safety protection, in a word, its accommodation is wider.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
Possess the high-precision stamping mould assembly of function of safety protection, it is characterized in that: comprise frame and rack-mounted upper die component and lower mold assemblies; Upper die component and lower mold assemblies are arranged in opposite directions, and upper die component is positioned at the top of lower mold assemblies; Described upper die component drives lifting by hydraulic cylinder component; Described upper die component and lower mold assemblies arrange the punch and die that cooperatively interact respectively;
Described hydraulic cylinder component comprises hydraulic cylinder and piston rod, and the bottom of piston rod is connected to the lifter plate of upper die component;
Described upper die component also comprises the punch assemblies being fixed on lifter plate bottom surface; Described punch assemblies comprises the fixed head be fixedly connected with lifter plate bottom surface; Fixed head is provided with punch holder connecting hole, is connected with punch holder in punch holder connecting hole; The upper end of punch holder outside is provided with defining flange, and lower end is provided with external screw thread, and punch holder inside is provided with axial connecting hole, and the hole wall of axial connecting hole is provided with two symmetrical logical keyways; Antirotation keys is provided with between the punch holder connecting hole of defining flange and fixed head; Defining flange and antirotation keys by spacing for punch holder in punch holder connecting hole; Punch mechanism is connected with in axial connecting hole;
Described punch mechanism comprises punch; Punch is located in punch sleeve pipe, and the end of punch and punch sleeve pipe is connected with limiting plate by sunk screw;
The sidewall of the side of the die of described lower mold assemblies is provided with infrared emission head, the sidewall of side is in opposite directions provided with infrared receiving terminal; Described infrared emission head is all connected with controller by wire with infrared receiving terminal, and control relay circuit is all connected with controller with warning circuit; Described control relay circuit is connected to described hydraulic jack.
The preferred embodiment of the present invention and further improvement as follows:
(1) outer surface of described punch near bottom is set with elasticity Spent fuel elements; Elasticity Spent fuel elements adopts polyurethane rubber.
(2) described punch sleeve outer wall is provided with two symmetrical keys; Two symmetrical keys are pressed sliding matching mode with two symmetrical logical keyways of axial connecting hole and are connected; The radial draw-in groove of punch sleeve outer wall bottom is connected with the flange of punch pad, has gap between radial draw-in groove and the flange of punch pad; Described punch pad is put together by two semi-rings, and two semi-rings are connected with nut by screw; The screwed hole of nut is connected with the external screw thread of punch holder outer wall bottom.
(3) described frame is provided with electric control box, described control relay circuit, controller and warning circuit are all arranged in electric control box;
Described frame comprises pedestal; Described base bottom is installed with supporting leg, lower platen is fixedly mounted in base top surface, described lower platen bottom surface is provided with waste material bucket and is positioned at pedestal, dust catcher to be arranged on base seat groove inner bottom surface and to be connected with waste material bucket by pipeline, described pedestal side fixedly mounts described electric control box, and column is fixedly mounted on the end face of lower platen; Upper platen is fixedly mounted on the end face of column, in the installing hole of described upper platen, properties of journal bearing lubricated is installed, workbench is arranged on lower platen, supporting seat is fixedly mounted on upper platen end face, crossbeam is fixedly mounted on supporting seat end face, described hydraulic cylinder is fixedly mounted on the end face of crossbeam, is provided with sliding bearing in the installing hole of described crossbeam, and described piston rod is supported in sliding bearing and properties of journal bearing lubricated; The lifter plate of described upper die component is between lower platen and upper platen, and described hydraulic cylinder is connected with electrohydraulic servo valve by hydraulic tube.
Further: described pedestal adopts shaped steel welding to be made, and pedestal front is provided with switch gate; Be provided with hydraulic fluid tank after described pedestal, hydraulic fluid tank is provided with hydraulic pump.
Further: described lower platen installs described lower mold assemblies, described lower mold assemblies comprises lower bolster, lower bolster is provided with can by the binder assembly of Work-sheet pressing on lower bolster, described binder assembly comprises and is fixed on lower bolster, and the support bar extended to upper die component direction, the sheathed pressing plate moved along its axis on support bar, pressing plate be provided with allow punch axially across through hole, to arranging die hole by lead to the hole site on lower bolster, the nested support spring of support bar part between pressing plate with lower bolster, transversely movable skewback is provided with on the upside of pressing plate, skewback has a head and an afterbody, head is provided with inclined plane, afterbody is provided with the roller that laterally can roll along pressing plate, extension spring is mounted between this afterbody and the link plate being fixed on pressing plate, the skewback upper portion of support bar is provided with the limiting plate that can limit skewback and move up, limiting plate has the inclined plane suitable with the head of skewback,
The bilateral symmetry phase downward-extension of the lifter plate of described upper die component makes lifting side plate, and this lifting side plate has thrust roller can make the inclined-plane of skewback transverse shifting and facing directly at punching press limit skewback transverse shifting before entering mould.
Further: the receive window of described infrared receiving terminal is provided with red plexiglass or red film; Described infrared emission head is provided with collector lens.
The invention has the beneficial effects as follows:
Described upper die component of the present invention drives lifting by hydraulic cylinder component; Hydraulic jack is as power, and its work in driving force possesses wider accommodation away from making this diel assembly, and it is more prone to rush through hole reliably, and the platy structure stamped recess simultaneously can carrying out having deformability forms cup shape structure;
In the present invention, described punch assemblies comprises the fixed head be fixedly connected with lifter plate bottom surface; Fixed head is provided with punch holder connecting hole, is connected with punch holder in punch holder connecting hole; The upper end of punch holder outside is provided with defining flange, and lower end is provided with external screw thread, and punch holder inside is provided with axial connecting hole, and the hole wall of axial connecting hole is provided with two symmetrical logical keyways; Antirotation keys is provided with between the punch holder connecting hole of defining flange and fixed head; Defining flange and antirotation keys by spacing for punch holder in punch holder connecting hole; Punch mechanism is connected with in axial connecting hole; Thus, punch mechanism of the present invention can assembly and disassembly on fixed head reliably; This assembly and disassembly, the reliability of structure that we mainly consider, therefore it can repeatedly be dismantled, and can change reliably; If further design Duo Zu punch mechanism, just can ensure quick-replaceablely to make different punch mechanisms can complete different punching courses reliably simultaneously, avoid the trouble of better whole diel assembly;
Described punch mechanism of the present invention comprises punch; Punch is located in punch sleeve pipe, and the end of punch and punch sleeve pipe is connected with limiting plate by sunk screw; We make punch reliably be combined into one itself by punch sleeve pipe and punch assemblies really by the structure of punch and punch sleeve pipe;
The present invention is provided with infrared emission head on the sidewall of the side of the die of described lower mold assemblies, and the sidewall of side is in opposite directions provided with infrared receiving terminal; Described infrared emission head is all connected with controller by wire with infrared receiving terminal, and control relay circuit is all connected with controller with warning circuit; Described control relay circuit is connected to described hydraulic jack.As long as the arm of operating personnel is through protection zone, the infrared light that infrared emission head sends is obstructed, and just by having judged that arm enters protection zone to the detection of infrared receiving terminal, makes relay switch disconnect immediately, and controlled pressure mechanism is dynamic, patrix is stopped descending.After the arm of operating personnel leaves protection zone, relay switch is closed, and protector automatically resets, and forcing press will continue normal work; This safety protection component has the advantages such as reaction is fast, antijamming capability is strong, its applied range.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of detailed description of the invention of the present invention;
Fig. 2 is the A place structure for amplifying schematic diagram in Fig. 1;
Fig. 3 is the circuit control structure schematic diagram of safety protection component of the present invention;
Fig. 4 is the structural representation of a kind of detailed description of the invention of punch assemblies of the present invention.
Description of reference numerals:
1-pedestal, 2-lower platen, 3-lower mold assemblies, 4-upper die component, the upper sliding bearing of 5-, 6-crossbeam, 7-hydraulic cylinder, 8-hydraulic tube, 9-electrohydraulic servo valve, 10-piston rod, 11-properties of journal bearing lubricated, 12-upper platen, 15-waste material bucket, 16-electric control box, 17-dust catcher, 18-supporting leg, 19-supporting seat;
41-is elevated side plate, 42-lifter plate, 43-inclined-plane, and 44-faces directly, 45-punch assemblies;
301-lower bolster, 302-workpiece, 303-pressing plate, 304-limiting plate, 305-support bar, 306-support spring, 307-adjusting nut, 308-skewback, 309-roller, 310-extension spring, 311-link plate, 312-infrared emission head, 313-infrared receiving terminal, 314-control relay circuit, 315-controller, 316-warning circuit;
4501-fixed head, 4502-antirotation keys, the axial connecting hole of 4503-, 4504-leads to keyway, 4505-punch holder connecting hole, 4506-defining flange, 4507-external screw thread, the radial draw-in groove of 4508-, 4509-flange, 4510-elasticity Spent fuel elements, 4511-punch, 4512-punch pad, 4513-nut, 4514-punch holder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the invention is described:
As shown in figures 1-4, it illustrates the specific embodiment of the present invention, as shown in the figure, the present invention possesses the high-precision stamping mould assembly of function of safety protection, comprises frame and rack-mounted upper die component 4 and lower mold assemblies 3; Upper die component and lower mold assemblies are arranged in opposite directions, and upper die component is positioned at the top of lower mold assemblies; Described upper die component drives lifting by hydraulic cylinder component; Described upper die component and lower mold assemblies arrange the punch 4511 and die that cooperatively interact respectively;
As shown in the figure, described hydraulic cylinder component comprises hydraulic cylinder 7 and piston rod 10, and the bottom of piston rod is connected to the lifter plate 42 of upper die component 4;
As shown in Figure 4, described upper die component 4 also comprises the punch assemblies being fixed on lifter plate bottom surface; Described punch assemblies comprises the fixed head 4501 be fixedly connected with lifter plate bottom surface; Fixed head is provided with punch holder connecting hole 4505, is connected with punch holder 4514 in punch holder connecting hole 4505; The upper end of punch holder outside is provided with defining flange 4506, and lower end is provided with external screw thread 4507, and punch holder 4514 inside is provided with axial connecting hole 4503, and the hole wall of axial connecting hole is provided with two symmetrical logical keyways 4504; Antirotation keys 4502 is provided with between the punch holder connecting hole 4505 of defining flange 4506 and fixed head 4501; Defining flange 4506 and antirotation keys 4502 by spacing for punch holder 4514 in punch holder connecting hole 4505; Punch mechanism is connected with in axial connecting hole 4503;
Described punch mechanism comprises punch 4511; Punch is located in punch sleeve pipe, and the end of punch and punch sleeve pipe is connected with limiting plate by sunk screw;
The sidewall of the side of the die of described lower mold assemblies 3 is provided with infrared emission head 312, the sidewall of side is in opposite directions provided with infrared receiving terminal 313; Described infrared emission head and infrared receiving terminal are all connected with controller 315 by wire, and control relay circuit 314 is all connected with controller 315 with warning circuit 316; Described control relay circuit 314 is connected to hydraulic jack driven unit.
The further improvement of the preferred embodiments of the present invention and preferred embodiment is as follows:
Preferably, as shown in the figure, the outer surface of described punch 4511 near bottom is set with elasticity Spent fuel elements 4510; Elasticity Spent fuel elements adopts polyurethane rubber.Thus, the present invention can after punching press, good discharging, limits the displacement of workpiece after waste material and punching press, and owing to adopting elasticity Spent fuel elements, its structure for stamping forming workpiece can not damage.
Preferably, as shown in the figure, described punch sleeve outer wall is provided with two symmetrical keys; Two symmetrical keys are pressed sliding matching mode with two symmetrical logical keyways 4504 of axial connecting hole 4503 and are connected; The punch sleeve pipe of this structure can make the assembling of punch sleeve pipe more convenient, finally only needs can realize final reliable assembling by interference fit and interference fits; In the preferred embodiments of the present invention, the described radial draw-in groove 4508 of punch sleeve outer wall bottom is connected with the flange 4509 of punch pad 4512, has gap between radial draw-in groove 4508 and the flange 4509 of punch pad 4512; Described punch pad 4512 is put together by two semi-rings, and two semi-rings are connected with nut 4513 by screw; The screwed hole of nut 4513 is connected with the external screw thread 4507 of punch holder 4514 outer wall bottom.Thus, the clamping of punch mechanism and dismounting become and can easily realize; Reliable punching press effect is ensured after clamping assembling; The replacing of punch mechanism can be realized again after dismounting.
In some preferred embodiments, as shown in the figure, whole diel assembly has been carried out extraordinary integrated design by us, concrete, as shown in Figure 1:
Described frame is provided with electric control box 16, described control relay circuit 314, controller 315 and warning circuit 316 are all arranged in electric control box;
Described frame comprises pedestal 1; Described base bottom is installed with supporting leg 18, lower platen 2 is fixedly mounted in base top surface, described lower platen 2 bottom surface is provided with waste material bucket 15 and is positioned at pedestal 1, dust catcher 17 to be arranged on base seat groove inner bottom surface and to be connected with waste material bucket by pipeline, described pedestal side fixedly mounts described electric control box 16, and column is fixedly mounted on the end face of lower platen 2; Upper platen 12 is fixedly mounted on the end face of column, in the installing hole of described upper platen 12, properties of journal bearing lubricated 11 is installed, workbench is arranged on lower platen, supporting seat 19 is fixedly mounted on upper platen end face, crossbeam 6 is fixedly mounted on supporting seat end face, described hydraulic cylinder 7 is fixedly mounted on the end face of crossbeam 6, is provided with sliding bearing 5 in the installing hole of described crossbeam 6, and described piston rod 10 is supported in sliding bearing 5 and properties of journal bearing lubricated 11; The lifter plate 42 of described upper die component 4 is between lower platen 2 and upper platen 12, and described hydraulic cylinder 7 is connected with electrohydraulic servo valve 9 by hydraulic tube 8.Above-mentioned frame is integrated with all parts reliably, the reliable driving of piston rod can be packed, the reliable recovery of waste material and reliable hydraulic control; Finally can realize the integration of whole assembly; Compact conformation, reduces floor space.
One as above-described embodiment is preferred, and described pedestal 1 adopts shaped steel to weld and is made, and pedestal front is provided with switch gate; Described pedestal 1 is provided with hydraulic fluid tank below, and hydraulic fluid tank is provided with hydraulic pump.
One as above-described embodiment is preferred, as shown in the figure, described lower platen 2 installs described lower mold assemblies 3, described lower mold assemblies 3 comprises lower bolster 301, lower bolster 301 is provided with the binder assembly that workpiece 302 can be pressed on lower bolster 301, described binder assembly comprises and is fixed on lower bolster 301, and the support bar 305 extended to upper die component 4 direction, the sheathed pressing plate 303 moved along its axis on support bar 305, pressing plate 303 be provided with allow punch 4511 axially across through hole, to arranging die hole by lead to the hole site on lower bolster 301, the nested support spring 306 of support bar 305 part between pressing plate 303 with lower bolster 301, transversely movable skewback 308 is provided with on the upside of pressing plate 303, skewback 308 has a head and an afterbody, head is provided with inclined plane, afterbody is provided with the roller 309 that laterally can roll along pressing plate, extension spring 310 is mounted between this afterbody and the link plate 311 being fixed on pressing plate 303, skewback 308 upper portion of support bar 305 is provided with the limiting plate 304 that can limit skewback and move up, limiting plate 304 has the inclined plane suitable with the head of skewback 308,
The bilateral symmetry phase downward-extension of the lifter plate 42 of described upper die component 4 makes lifting side plate 41, and this lifting side plate has before entering mould thrust roller 309 can be made the inclined-plane 43 of skewback 308 transverse shifting and faces 44 directly at punching press limit skewback 308 transverse shifting.
Above preferred embodiment, makes whole punching course achieve reliable compression for workpiece; During the cup shape structure of especially tangible stamped recess, it can make the clamping strength of the punching press strength of whole punching course and workpiece more reliable, ensure that punching press effect;
One as above-described embodiment is preferred, the receive window of described infrared receiving terminal is provided with red plexiglass or red film; Described infrared emission head is provided with collector lens.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above; but the invention is not restricted to above-mentioned embodiment; in the ken that those of ordinary skill in the art possess; can also make a variety of changes under the prerequisite not departing from present inventive concept; these changes relate to correlation technique well-known to those skilled in the art, and these all fall into the protection domain of patent of the present invention.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific embodiment, scope of the present invention is defined by the following claims.