CN205217715U - Lead plate -type blanking die - Google Patents

Abstract

The utility model discloses a lead plate -type blanking die, including last mould part and lower mould part, to go up the mould part and include die shank and terrace die, the die shank overcoat has the upper die base, is equipped with punch plate below the upper die base, and punch plate is connected with the terrace die, and the lower mould part includes the die holder, and die holder upper portion is equipped with the die, and the lower mould part still has the guiding hole that can supply the terrace die up -and -down motion including setting up in the baffle of die top, opening on the baffle, still opened the pinhole on the baffle, and pinhole department is equipped with time belt stop pin who is used for the work piece location. The utility model has the advantages of time belt stop pin that will be used for the stop pin adoption activity of work piece location to set up it on the baffle, thereby do not need to offer corresponding stop pin hole again on the die on guaranteeing the accurate basis in work piece location, thereby guaranteed the intensity of die, improve the mould utility life -span.

Description

Guide-plate type blanking die

Technical field

The utility model relates to a kind of stamping and blanking mode structure, is specially a kind of guide-plate type blanking die.

Background technology

Punching press applies pressure by forcing press and punch die to sheet material to make sheet material plastic forming, thus obtain certain size, a kind of method of processing parts of shape and performance.In punch process, materials processing is become a kind of special process equipment of part, be called diel.

Blanking die is requisite process equipment in punching production, it is the specific purpose tool realizing Pressing Deformation, blanking die structure should have reasonability and advance, blanking die is a kind of blanking die of common form, correct position can be had with during stamping-out on mould sending to make processing work, the pin stop for Workpiece fixing is provided with in blanking die structure, the pin stop generally used now is fixing pin stop, this kind of fixing pin stop is arranged on die, and fixing pin stop pin-and-hole is usually closer apart from the die edge of a knife, therefore the intensity of die can be weakened, make the service life reduction of die, increase the cost in production process.

Utility model content

The utility model is intended to provide a kind of guide-plate type blanking die, to solve because fixing pin stop pin-and-hole is comparatively near apart from the die edge of a knife, strength of concave mould is weakened, the problem of service life reduction.

Guide-plate type blanking die in this programme, comprise upper mould part and lower mould part, upper mould part comprises die shank and punch, die shank overcoat has upper bolster, punch retainer is provided with below upper bolster, upper bolster and punch retainer are connected by screw, punch retainer is connected with punch, lower mould part comprises die shoe, die shoe top is provided with die, die has material-dropping hole, die shoe has discharge opening, lower mould part also comprises the guide plate be arranged at above die, guide plate has the pilot hole that can move up and down for punch, guide plate also has pin-and-hole, pin-and-hole place is provided with the formula that the rewinds pin stop for Workpiece fixing, rewinding formula pin stop towards punch side is inclined-plane, workpiece with rewind formula pin stop inclined-plane touch time, the formula pin stop of rewinding can move up and down along pin-and-hole.

The operation principle of the guide-plate type blanking die in this programme is: when needs add man-hour to workpiece, first workpiece is positioned in mould, now punch moves downward along the pilot hole on guide plate, under the acting in conjunction of punch and die, workpiece is punched into desired structure, stamping is released from die shoe discharge opening through die material-dropping hole, punch backhaul, the workpiece of hoop on punch is removed under the effect of guide plate, the hollow-core construction now will stayed after there is stamping-out on workpiece, when continuing charging, workpiece is pushed ahead, workpiece touches the inclined-plane rewinding formula pin stop in advance process, rewind formula pin stop to move upward along pin-and-hole, continue to push ahead workpiece, until the formula pin stop of rewinding falls within the scope of hollow-core construction that workpiece processes, now rewind formula pin stop to move downward under gravity, reverse tension workpiece makes to rewind formula pin stop side, non-inclined-plane and workpiece hole wall offsets and can locate, repeat above-mentioned steps, until process all holes on workpiece.

The beneficial effect of the guide-plate type blanking die in this programme is: by the formula that the rewinds pin stop of the pin stop employing activity by Workpiece fixing, and formula pin stop will be rewinded be arranged on guide plate, thus do not need on die, offer corresponding backgauge pin-and-hole again on the basis ensureing accurate work piece positioning, thus ensure that the intensity of die, improve the mold use life-span.

Further, lower mould part also comprises the trigger stop for locating during workpiece charging first, trigger stop inside is provided with the spring that trigger stop can be made to reset, during workpiece stamping-out use first, pressing trigger stop props up workpiece end and locates, and decontrol trigger stop, trigger stop can automatically reset under the action of the spring, adopt trigger stop effectively can improve the utilization rate of material, reduce the cost producing material.

Further, be provided with pad between upper bolster and punch retainer, pad dispersibles the pressure that punch transmits, and prevents punch crush injury upper bolster.

Further, lower mould part also comprises for guiding workpiece to enter the stock guide of mould and the stock supporting plate for supporting workpiece between die and guide plate, and stock guide is positioned at above stock supporting plate, and stock guide is connected by screw with stock supporting plate.In workpiece process, stock guide enters mould for guiding workpiece by correct path, and gripper shoe stretches out the part of mould for supporting workpiece simultaneously, prevents the distortion of part workpiece to be processed, ensures the quality of workpiece.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the lower mould part top view of the utility model embodiment.

Detailed description of the invention

Below by detailed description of the invention, the utility model is described in further detail:

Reference numeral in Figure of description comprises: die shank 1, upper bolster 2, pad 3, punch retainer 4, punch 5, rewind formula pin stop 6, guide plate 7, die 8, die shoe 9, beginning with guide pin 10, stock supporting plate 11, stock guide 12.

Embodiment substantially as shown in Figures 1 and 2, guide-plate type blanking die, comprise upper mould part and lower mould part, upper mould part comprises die shank 1, upper bolster 2, pad 3, punch retainer 4 and punch 5, and lower mould part comprises and rewinds formula pin stop 6, guide plate 7, die 8, die shoe 9, trigger stop 10, stock supporting plate 11 and stock guide 12.

Upper mould part the top is die shank 1, die shank 1 overcoat has upper bolster 2, is connected with pad 3 below upper bolster 2, is connected with punch retainer 4 below pad 3, upper bolster 2, be connected by screw together between pad 3 and punch retainer 4 three, punch 5 stiff end is installed in punch retainer 4.

Lower mould part bottom is die shoe 9, die shoe 9 top is provided with die 8, die 8 has material-dropping hole, die shoe 9 has discharge opening, the stock supporting plate 11 that can be used for supporting workpiece is connected above die 8, the stock guide 12 guiding workpiece to enter mould is connected with above stock supporting plate 11, stock guide 12 and stock supporting plate 11 are fixed together by four screws, guide plate 7 is connected above stock guide 12, die shoe 9, die 8, stock guide 12 is connected by 6 straight pins with guide plate 7 four, guide plate 7 is provided with and rewinds formula pin stop 6, the lateral location corresponding with rewinding formula pin stop 6 at guide plate 7 is provided with trigger stop 10, workpiece positions when workpiece carries out cutting first by trigger stop 10, guide plate 7 has pilot hole simultaneously, punch 5 pumps in the pilot hole of guide plate 7, pilot hole provides guide effect for the motion of punch 5, ensure the guiding accuracy of mould, simultaneously after a punching course completes, punch 5 is in return stroke, the workpiece of hoop on punch 5 is removed under the effect of guide plate 7, thus guide plate 7 completes the effect of guiding and discharging simultaneously.

When needs carry out punch process to workpiece, first workpiece one end is positioned on stock guide 12, under the supporting role of stock supporting plate 11, workpiece is pushed in die 8 along stock guide 12 from the right side from a left side, advance trigger stop 10 in push-on process simultaneously, under the positioning action of trigger stop 10, workpiece puts in place, now punch 5 moves downward along the pilot hole of guide plate 7, under the acting in conjunction of die 8, workpiece is punched into desired structure, stamping pushes from die shoe 9 discharge opening through die 8 material-dropping hole, now punch 5 is along pilot hole backhaul, the workpiece of hoop on punch 5 is removed under the effect of guide plate 7, when continuing charging, first decontrol trigger stop 10 to make, under the effect of trigger stop 10 contained spring, make it reset, workpiece touches the inclined-plane rewinding formula pin stop 6 in advance process, rewind formula pin stop 6 to move upward, continue to push ahead workpiece, fall within the scope of hollow-core construction that workpiece processes until rewind formula pin stop 6, now rewind formula pin stop 6 to move downward under gravity, reverse tension workpiece makes to rewind formula pin stop 6 side, non-inclined-plane and workpiece hole wall offsets and can locate, continue to advance workpiece, until process required hole on workpiece.Adopt the guide-plate type blanking die of this structure; the motion of punch relies on guide plate guiding; be easy to the closing precision ensureing punch and die; during punch backhaul simultaneously, guide plate can play discharging effect again; the formula that rewinds pin stop 6 for Workpiece fixing is arranged at guide plate simultaneously; thus on die, do not offer backgauge pin-and-hole, effectively can ensure the intensity of die, improve service life.

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.

Claims (4)

1. a guide-plate type blanking die, comprise upper mould part and lower mould part, described upper mould part comprises die shank and punch, described die shank overcoat has upper bolster, punch retainer is provided with below described upper bolster, described upper bolster and described punch retainer are connected by screw, described punch retainer is connected with described punch, described lower mould part comprises die shoe, described die shoe top is provided with die, described die has material-dropping hole, described die shoe has discharge opening, it is characterized in that: described lower mould part also comprises the guide plate be arranged at above die, described guide plate has the pilot hole that can move up and down for described punch, described guide plate also has pin-and-hole, described pin-and-hole place is provided with the formula that the rewinds pin stop for Workpiece fixing, it is described that to rewind formula pin stop towards punch side be inclined-plane, workpiece and the described formula pin stop inclined-plane that rewinds are when touching, the described formula pin stop that rewinds can move up and down along pin-and-hole.

2. guide-plate type blanking die according to claim 1, is characterized in that: described lower mould part also comprises the trigger stop for locating during workpiece charging first, and described trigger stop inside is provided with the spring that described trigger stop can be made to reset.

3. guide-plate type blanking die according to claim 1, is characterized in that: be provided with pad between described upper bolster and described punch retainer.

4. guide-plate type blanking die according to claim 1, it is characterized in that: described lower mould part also comprises between described die and described guide plate for guiding workpiece to enter the stock guide of mould and the stock supporting plate for supporting workpiece, described stock guide is positioned at above described stock supporting plate, and described stock guide is connected by screw with described stock supporting plate.