A kind of punching die of vacuum booster upper push-rod assembly
Technical field
The invention belongs to technical field of mold, relate to a kind of punching die, particularly a kind of punching die of vacuum booster upper push-rod assembly.
Background technology
Push-rod assembly on the automobile vacuum booster is the output block of vacuum booster, its end links to each other with automobile pedal bracket, it is to link to each other by a prong with pedal support that the other end is one, prong comprises two linking arms, each linking arm is provided with one and utilizes punching die punching press through hole out, owing between two linking arms an intersegmental crack is arranged, traditional punching die breaks two arms of prong easily, distortion or damage, but the method for employing two times punch, namely need to clamp with punching press for twice and just can finish, because two arms of this push-rod assembly separate, the processing of the waste material that produces for punching is trouble comparatively also, this punching efficient and quality to the push-rod assembly on the automobile vacuum booster has a significant impact, and the disposable punching of vacuum resistance gauge upper push-rod assembly is a difficult problem always.
Summary of the invention
The objective of the invention is the problems referred to above for existing technology existence, a kind of punching die of vacuum booster upper push-rod assembly is provided, technical problem to be solved by this invention is that the disposable punching that liquidates of two through holes of linking arm on the push-rod assembly is finished.
Purpose of the present invention can realize by following technical proposal: a kind of punching die of vacuum booster upper push-rod assembly, this punching die comprises frame, upper bolster, drift, and horizontally disposed punch and die, it is characterized in that, the upper surface of described die and lower surface respectively offer one can with the strip groove of workpiece clamping, described drift vertically is arranged on the upper bolster and over against strip groove, be equipped with on described punch and the die and be positioned under the drift and the through hole that allows drift to pass, the lower end of described frame is provided with the waste material push rod that a waste material that after punching is finished workpiece is produced pushes away from die, and the rear end of described frame is provided with a material returned push rod that workpiece can be pushed away die.
Operation principle of the present invention is: refer to vacuum booster upper push-rod assembly during the workpiece mentioned in this specification, it comprises two parallel and symmetrical linking arms of a connecting rod and interlinking lever end, in this programme, two linking arms of workpiece are connected in the strip groove, because two strip groove minute upper and lower surfaces of die are offered, distortion or fracture so can not bend during pressure on being subjected to vertical direction of two linking arms, be positioned at two linking arms of the drift stamped workpieces when upper bolster is descending directly over the strip groove, thereby two disposable punching presses in hole on two linking arms are finished, and the waste material push rod that is positioned at the frame lower end can be after the workpiece punching be finished to passing through hole on the workpiece and the through hole on the die, the waste material that promotes the punching press generation makes its discharge, after waste material is discharged, material returned push rod can promote workpiece disengaging die falls down it, thereby finish the disposable punching to workpiece, and efficient is higher, can be to two linking arms on the defective work piece.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, described punch is provided with alignment sheets, and described alignment sheets can be resisted against in the strip groove on the die upper surface.The effect of alignment sheets is when punch moves down, and alignment sheets cooperates with strip groove and mutually locates, and then drift carries out punching press to workpiece, can allow drift carry out punching to workpiece accurately.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, described waste material push rod be positioned at die under and can pass through hole on the die, described waste material push rod can promote the cylinder one that the waste material push rod moves up and down and is connected with one.The waste material push rod passes the through hole on workpiece and the die from the bottom to top, and the waste material of generation was cleared up after punching press was finished to workpiece, and this waste material push rod has cylinder control, the danger that may bring operating personnel when avoiding manually-operated.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, described material returned push rod front end is provided with two material returned arms, described material returned arm can be plugged in respectively in two strip grooves on the die, and described material returned push rod can promote material returned push rod mobile cylinder two in strip groove and is connected with one.When workpiece machines, and after the waste material cleaning finished, cylinder two promoted material returned push rods, two material returned arms on the material returned push rod are slided along two strip grooves, the promotion workpiece falls down from the opposite side of strip groove, and workpiece has cylinder control, contingent danger in the time of can avoiding artificial feeding.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, the front end of described frame is provided with one can regulate workpiece in the position on the die and can be with workpiece against the material ejecting structure that is fixed on the die.Position in die is subjected to displacement the generation that causes the problems such as punching position is inaccurate in order to prevent workpiece after installation and in the punching course, in die one side with the material returned push rod right opposite material ejecting structure is set, before the processing workpiece is fixed on this material ejecting structure, two linking arms of workpiece are connected in the strip groove, when the workpiece punching is finished and after waste material cleaning finishes, adjust this material ejecting structure, workpiece can also be unclamped from die, so that material returned push rod is released workpiece smoothly.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, described material ejecting structure comprises the slide block one that the support arm one that is fixed on the frame and can horizontally slip at support arm, described slide block one be provided with one can with workpiece against and workpiece is pressed on screw rod in the strip groove, described screw rod is plugged on the slide block one and can moving forward and backward along slide block one, and also being provided with one on the described slide block one can be with the U-shaped carriage that workpiece holds up and opening arranges towards horizontal cross.U-shaped carriage holds up the connecting rod of workpiece, and the transverse shifting slide block is adjusted the lateral attitude of workpiece on die, after adjusting, two linking arms of workpiece is snapped in the strip groove, then screws screw rod and makes workpiece being resisted against in the strip groove on the die tightly.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, as another kind of technical scheme, described material ejecting structure comprises the slide block two that the support arm two that is fixed on the frame and slide before and after can be on support arm two, described slide block two is positioned at the dead ahead of strip groove, and offers the recess that an end that can be set in workpiece holds up workpiece on this slide block two.The interlinking lever end of workpiece leans in recess, belongs to tight fit between slide block two and the support arm two, and slide block two can be not loosening behind the position that regulates with strip groove, and front and back promote slide block two so that two linking arms of workpiece are resisted against in the strip groove.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly, described material returned putting back-end is connected with an adjustable plate, described adjustable plate vertically offers the dovetail groove guide rail, described material returned push rod can be connected to also can be along the slippage of dovetail groove guide rail in the dovetail groove guide rail, and piston rod and the adjustable plate of described cylinder two are connected.Belong to tight fit between guide rail and the adjustable plate, can move up and down adjustable plate two material returned arms on the material returned push rod are inserted in the strip groove, owing to loss and the vibrations of mould, need in use for some time to regulate the position of material returned push rod.
In the punching die of above-mentioned a kind of vacuum booster upper push-rod assembly; this punching die also comprises die shoe; described die shoe upper end is installed with a fixed block one; be provided with a fixed block two between described fixed block one and the die; described die, fixed block one and fixed block two threes are connected mutually, are provided with the protection pad between described fixed block one and the lower bolster.Fixed block two is fixed thereon die, and the protection pad plays the damping of shocks effect of whole mould in the vertical direction.
Compared with prior art, the present invention has the following advantages:
1, adopted the method for offering strip groove in the upper and lower surface of die in the punching die of this vacuum booster upper push-rod assembly, two two linking arms of workpiece are connected to respectively in two strip grooves, when punching press, can not cause on the one hand two linking arms to bend is out of shape or fracture, and because two linking arms have been padded up, can bear larger impulsive force, so the punching that can disposablely liquidate is finished.
2, in this structure, adopted material returned push rod and waste material push rod, production efficiency and the production safety of this mould played fine effect.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the punching die of this vacuum booster upper push-rod assembly among the embodiment one.
Fig. 2 is the structural representation of material returned push rod and die among the embodiment one.
Fig. 3 is the structural representation of material ejecting structure and die among the embodiment one.
Fig. 4 is the structural representation of the push-rod assembly on the workpiece vacuum booster processed of this punching die.
Fig. 5 is the enlarged drawing of material ejecting structure among the embodiment one.
Fig. 6 is the enlarged drawing of material ejecting structure among the embodiment two.
Among the figure, 1, frame; 21, upper bolster; 22, die shoe; 3, drift; 31, through hole; 41, punch; 42, die; 421, strip groove; 5, waste material push rod; 6, material returned push rod; 61, material returned arm; 7, alignment sheets; 81, cylinder one; 82, cylinder two; 91, support arm; 92, slide block one; 93, screw rod; 94, U-shaped carriage; 95, support arm two; 96, slide block two; 97, recess; 10, adjustable plate; 11, fixed block one; 12, fixed block two; 13, protection pad; 14, connecting rod; 15, linking arm.
The specific embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment one:
Such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, this punching die comprises frame 1, upper bolster 21, drift 3, and horizontally disposed punch 41 and die 42, the upper surface of die 42 and lower surface respectively offer one can with the strip groove 421 of workpiece clamping, drift 3 vertically is arranged on the upper bolster 21 and over against strip groove 421, be equipped with on punch 41 and the die 42 and be positioned under the drift 3 and the through hole 31 that allows drift 3 to pass, the lower end of frame 1 is provided with the waste material push rod 5 that a waste material that after punching is finished workpiece is produced pushes away from die 42, the rear end of frame 1 is provided with a material returned push rod 6 that workpiece can be pushed away die 42, punch 41 is provided with alignment sheets 7, alignment sheets 7 can be resisted against in the strip groove 421 on die 42 upper surfaces, the effect of alignment sheets 7 is when punch 41 moves down, alignment sheets 7 cooperates with strip groove 421 and mutually locates, then 3 pairs of workpiece of drift carry out punching press, can allow drift 3 carry out punching to workpiece accurately, waste material push rod 5 be positioned at die 42 under and can pass through hole 31 on the die 42, waste material push rod 5 can promote the cylinder 1 that waste material push rod 5 moves up and down and is connected with one, waste material push rod 5 passes the through hole 31 on workpiece and the die 42 from the bottom to top, the waste material of generation was cleared up after punching press was finished to workpiece, this waste material push rod 5 has cylinder control, the danger that may bring operating personnel when avoiding manually-operated, material returned push rod 6 front ends are provided with two material returned arms 61, material returned arm 61 can be plugged in respectively in two strip grooves 421 on the die 42, material returned push rod 6 can promote material returned push rod 6 and is connected at the cylinder 2 82 of strip groove 421 interior movements with one, when workpiece machines, and after waste material cleaning finishes, cylinder 2 82 promotes material returned push rod 6, two material returned arms 61 on the material returned push rod 6 are slided along two strip grooves 421, the promotion workpiece falls down from the opposite side of strip groove 421, workpiece has cylinder control, contingent danger in the time of can avoiding artificial feeding.
As shown in Figure 4 and Figure 5, the front end of frame 1 is provided with one can regulate workpiece in the position on the die 42 and can be with workpiece against the material ejecting structure that is fixed on the die 42, the generation that dislocation causes the problems such as punching position is inaccurate occurs in the position in die 42 in order to prevent workpiece after installation and in the punching course, in die 42 1 sides with material returned push rod 6 right opposites material ejecting structure is set, before the processing workpiece is fixed on this material ejecting structure, two linking arms 15 of workpiece are connected in the strip groove 421, when the workpiece punching is finished and after waste material cleaning finishes, adjust this material ejecting structure, workpiece can also be unclamped from die 42, so that material returned push rod 6 is released workpiece smoothly, material ejecting structure comprises the slide block 1 that the support arm 1 that is fixed on the frame 1 and can horizontally slip at support arm, slide block 1 be provided with one can with workpiece against and workpiece is pressed on screw rod 93 in the strip groove 421, screw rod 93 is plugged on the slide block 1 and can moving forward and backward along slide block 1, and also being provided with one on the slide block 1 can be with the U-shaped carriage 94 that workpiece holds up and opening arranges towards horizontal cross.U-shaped carriage 94 holds up the connecting rod 14 of workpiece, the transverse shifting slide block is adjusted the lateral attitude of workpiece on die 42, after adjusting, two linking arms 15 of workpiece are snapped in the strip groove 421, then screw screw rod 93 and make workpiece being resisted against in the strip groove 421 on the die 42 tightly.
As depicted in figs. 1 and 2; material returned push rod 6 rear ends are connected with an adjustable plate 10; adjustable plate 10 vertically offers the dovetail groove guide rail; material returned push rod 6 can be connected to also can be along the slippage of dovetail groove guide rail in the dovetail groove guide rail; the piston rod of cylinder 2 82 and adjustable plate 10 are connected; belong to tight fit between guide rail and the adjustable plate 10; can move up and down adjustable plate 10 inserts in the strip groove 421 two material returned arms 61 on the material returned push rod 6; because loss and the vibrations of mould; need in use for some time to regulate the position of material returned push rod 6; this punching die also comprises die shoe 22; die shoe 22 upper ends are installed with a fixed block 1; be provided with a fixed block 2 12 between fixed block 1 and the die 42; die 42; fixed block 1 is connected mutually with fixed block 2 12 threes; be provided with protection pad 13 between fixed block 1 and the lower bolster, fixed block 2 12 is fixed thereon die 42, and protection pad 13 plays the damping of shocks effect of whole mould in the vertical direction.
Embodiment two:
Such as Fig. 2 and shown in Figure 6, the content of present embodiment is roughly identical with embodiment one, difference is that material ejecting structure comprises the slide block 2 96 that the support arm 2 95 that is fixed on the frame 1 and slide before and after can be on support arm 2 95, slide block 2 96 is positioned at the dead ahead of strip groove 421, and offer one on this slide block 2 96 and can be set in an end of workpiece with the recess 97 of workpiece picking-up, connecting rod 14 ends of workpiece lean in recess 97, belong to tight fit between slide block 2 96 and the support arm 2 95, slide block 2 96 can be not loosening behind the position that regulates with strip groove 421, and front and back promote slide block 2 96 so that two linking arms 15 of workpiece are resisted against in the strip groove 421.
The operation principle of this punching die is: refer to vacuum booster upper push-rod assembly during the workpiece mentioned in this specification, it comprises two parallel and symmetrical linking arms 15 of a connecting rod 14 and connecting rod 14 ends, in this programme, two linking arms 15 of workpiece are connected in the strip groove 421, because 421 minutes upper and lower surfaces of two strip grooves of die 42 are offered, distortion or fracture so can not bend during pressure on being subjected to vertical direction of two linking arms 15, be positioned at two linking arms 15 of drift 3 stamped workpieces when upper bolster 21 is descending directly over the strip groove 421, thereby two disposable punching presses in hole on two linking arms 15 are finished, and the waste material push rod 5 that is positioned at frame 1 lower end can be after the workpiece punching be finished to passing through hole 31 on the workpiece and the through hole 31 on the die 42, the waste material that promotes the punching press generation makes its discharge, after waste material is discharged, material returned push rod 6 can promote workpiece disengaging die 42 falls down it, thereby finish the disposable punching to workpiece, and efficient is higher, can be to two linking arms 15 on the defective work piece.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.