CN211071471U

CN211071471U - Mechanical precision blanking and punching die

Info

Publication number: CN211071471U
Application number: CN201922005649.3U
Authority: CN
Inventors: 李扩辚; 刘建科
Original assignee: Wujiang Suonan Precision Machinery Co ltd
Current assignee: Wujiang Suonan Precision Machinery Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-24
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a precise blanking cut-out press of machinery especially relates to cut-out press technical field, including die and moulding-die, die upper end four corners all is fixed with the stand, and moulding-die swing joint runs through moulding-die and moulding-die sliding connection in the die top, stand upper end, and it has the edge of a knife to open in the middle of the die upper end, is fixed with the drift in the middle of the moulding-die lower extreme. When the drift slides in the tool opening and punches a hole and blanking work, the rack can move down to drive the gear to rotate, make the gear drive reel rotate and twine the stay cord at the outer wall, the stay cord can stimulate the railing to move simultaneously, and when the drift roll-off edge of a knife, then can move up and drive gear antiport along with the rack, the railing can be pulled by the extension spring and reply the normal position and play the work that blocks the waste material simultaneously, thereby prevent that the waste material card from inside the edge of a knife, the problem of the buffering effect too poor of the accurate spare part blanking-punching die waste material of current machinery card easily at the inside and die of edge of a knife is solved.

Description

Mechanical precision blanking and punching die

Technical Field

The utility model relates to a cut-out press technical field especially relates to a mechanical accurate blanking cut-out press.

Background

The mould is used for making the tool of the shaping article, this kind of tool is formed by various parts, different moulds are formed by different parts, it mainly realizes the processing of the appearance of the article through the change of the physical state of the shaping material, it is called as "industrial mother", the punching mould, as the name suggests, is the mould for punching.

At present, when mechanical precision parts are punched, punched waste is easy to be brought into a knife edge along with upward movement of a punch, so that the waste is easy to be clamped in the knife edge, the next punching work of the punch is influenced, and the service life of a female die is shortened due to the poor buffering effect of the female die when the female die is matched with a pressing die.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a mechanical precision blanking-punching die, solved the easy card of current mechanical precision spare part blanking-punching die waste material in the too poor problem of the inside buffering effect of edge of a knife and die.

The utility model provides a technical scheme that its technical problem adopted is: a mechanical precision blanking and punching die comprises a female die and a pressing die, wherein stand columns are fixed at four corners of the upper end of the female die, the pressing die is movably connected above the female die, the upper end of the stand column penetrates through the pressing die and is in sliding connection with the pressing die, a knife edge is formed in the middle of the upper end of the female die, a punch is fixed in the middle of the lower end of the pressing die and is in inserted connection with the knife edge, a blanking port is formed in the middle of the lower end of the female die, the upper end of the blanking port penetrates through the knife edge, grooves are formed in the left side and the right side of the upper end of the female die and are located on the inner side of the female die, a side pipe is fixed at one side, close to the blanking port, of each groove, a sliding block is connected in a sliding mode inside each side pipe, a handrail is fixed in the middle of one end, close to, the tail end of the pull rope extends out of the side pipe, one side, far away from the blanking port, of the inner portion of each groove is rotatably connected with a rotating shaft, a winding drum is fixed to the outer portion of each rotating shaft, a gear is fixed to the outer portion of each rotating shaft, the gear is located in front of the winding drum, and racks are fixed to the left side and the right side of the lower end of the pressing die; every the recess tank bottom all evenly connects ten at least second buffer spring mutually, every the recess is inside all to be passed through second buffer spring elastic connection has the rubber slab, the rubber slab with the rack contacts, the second buffer spring other end with the rubber slab meets, the moulding-die lower extreme just is located it has four at least first buffer spring to be the even looks of annular around the drift to connect.

On the basis of the technical scheme, the outer side of one end, close to the railing, of the sliding block is connected with a tension spring, and the other end of the tension spring is connected with the side pipe.

On the basis of the technical scheme, one end, far away from the blanking opening, of each side pipe is an open end, and one end, close to the blanking opening, of each side pipe is a closed end.

On the basis of the technical scheme, the tail end of the pull rope is wound on the outer wall of the winding drum on the same side.

On the basis of the technical scheme, the lower end of the rack extends into the groove on the same side, and the rack is positioned on one side of the gear, which is far away from the side pipe, and is in meshed transmission connection with the gear.

On the basis of the technical scheme, the lower end of each first buffer spring is connected with a pressing block.

Compared with the prior art, the utility model discloses the beneficial effect who realizes: according to the mechanical precision blanking and punching die, when a punch slides into a knife edge to perform punching and blanking work, a rack can move downwards to drive a gear to rotate, so that the gear drives a winding drum to rotate to wind a pull rope on the outer wall, the pull rope can pull a rail to move, when the punch slides out of the knife edge, the rack can move upwards to drive the gear to rotate reversely, the rail can be pulled by a tension spring to return to the original position to block waste materials, and therefore the waste materials are prevented from being clamped inside the knife edge; when the moulding-die down pushed down, through first buffer spring, can play the cushioning effect between die and the moulding-die, simultaneously, along with the rack down extrudees the rubber slab, and makes the rubber slab press the compression of second buffer spring to play the buffering work of rack, and then play the cushioning effect between die and the moulding-die once more, improved the cushioning nature of die like this.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is an enlarged view of a portion A of the rack of FIG. 1;

Fig. 3 is a schematic diagram of the separation of the pressing die and the concave die of the present invention.

In the figure: 1-female die, 2-upright post, 3-pressing die, 4-punch, 5-first buffer spring, 6-pressing block, 7-knife edge, 8-blanking port, 9-groove, 10-second buffer spring, 11-rubber plate, 12-rack, 13-side tube, 14-pull rope, 15-rail, 16-tension spring, 17-slide block, 18-rotating shaft, 19-gear and 20-winding drum.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a mechanical precision blanking and punching die comprises a female die 1 and a pressing die 3, wherein four corners of the upper end of the female die 1 are respectively fixed with a stand column 2, the pressing die 3 is movably connected above the female die 1, the upper end of the stand column 2 penetrates through the pressing die 3 and is in sliding connection with the pressing die 3, a knife edge 7 is arranged in the middle of the upper end of the female die 1, a punch 4 is fixed in the middle of the lower end of the pressing die 3, the punch 4 is spliced with the knife edge 7, a blanking port 8 is arranged in the middle of the lower end of the female die 1, the upper end of the blanking port 8 penetrates through the knife edge 7, grooves 9 are formed in the left side and the right side of the upper end of the female die 1, the grooves 9 are positioned at the inner side of the female die 2, a side tube 13 is fixed on one side close to the blanking port 8 inside each groove 9, a sliding block 17 is connected inside each side tube 13, the tail end of the handrail 15 penetrates through the interior of the blanking port 8, one end, far away from the blanking port 8, of each sliding block 17 is connected with a pull rope 14, the tail end of each pull rope 14 extends out of the side tube 13, one side, far away from the blanking port 8, of each groove 9 is rotatably connected with a rotating shaft 18, a winding drum 20 is fixed on the outer portion of each rotating shaft 18, a gear 19 is fixed on the outer portion of each rotating shaft 18, the gear 19 is located in front of the winding drum 20, racks 12 are fixed on the left side and the right side of the lower end of the pressing die 3, one end, far away from the blanking port 8, of each side tube 13 is an open end, one end, close to the blanking port 8, of each side tube 13 is a closed end, the tail end of each pull rope 14 is wound on the outer wall of the winding drum 20 on the same side, the lower end of each rack 12 extends into the groove 9 on the same side, when punch 4 slides into edge of a knife 7 in the blanking work that punches a hole, the rack 12 of the left and right sides all can move down and slide into recess 9, drive left gear 19 anticlockwise rotation along with left rack 12 moves down, and rack 12 on right side moves down and drives gear 19 clockwise on right side, because gear 19 can utilize pivot 18 to drive reel 20 and rotate, make two reels 20 respectively anticlockwise rotation and clockwise rotation about making, left reel 20 anticlockwise rotation can twine left stay cord 14 at the outer wall, and reel 20 clockwise rotation on right side can twine stay cord 14 on right side at the outer wall, stay cord 14 can stimulate railing 15 to move simultaneously, and make railing 15 no longer block edge of a knife 7 lower extreme opening.

On the contrary, when the punch 4 moves upwards to slide out of the knife edge 7, the rack 12 moves upwards to drive the left gear 19 and the right gear 19 to rotate clockwise and rotate anticlockwise respectively, so that the pull rope 14 is released from the outer wall of the gear 19, and meanwhile, the railing 15 is pulled by the tension spring 16 to return to the original position to block the opening at the lower end of the knife edge 7, so that the waste material is blocked inside the knife edge 7, and the waste material is prevented from being clamped inside the knife edge 7.

On the basis of the above embodiment, further, at least ten second buffer springs 10 are uniformly connected to the bottom of each groove 9, a rubber plate 11 is elastically connected to the inside of each groove 9 through the second buffer springs 10, the rubber plate 11 contacts with the rack 12, the other end of the second buffer spring 10 is connected to the rubber plate 11, at least four first buffer springs 5 are uniformly connected to the lower end of the die 3 around the punch 4 in an annular shape, when the die 3 is pressed downward, the first buffer springs 5 can play a role in buffering between the die 1 and the die 3, and simultaneously, as the rack 12 presses the rubber plate 11 downward, the rubber plate 11 presses the second buffer springs 10 to compress, thereby playing a role in buffering the rack 12 and further playing a role in buffering between the die 1 and the die 3 again, this improves the cushioning properties of the die 1.

Preferably, the slider 17 is close to the outside of railing 15 one end is connected with extension spring 16, the extension spring 16 other end with side pipe 13 meets, through extension spring 16, can work as, extension spring 16 can be drawn slider 17 and move towards blanking mouth 8 direction, and slider 17 drives railing 15 and inserts towards blanking mouth 8 simultaneously, prevents like this that the waste material from being brought into in the edge of a knife 7.

Preferably, the lower end of each first buffer spring 5 is connected with a press block 6, and when the first buffer spring 5 is driven by the press die 3 to move downwards, the first buffer spring 5 can drive the press block 6 to move downwards, so that the press block 6 can press mechanical precision parts.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a precise blanking-punching die of machinery, includes die and moulding-die, die upper end four corners all is fixed with the stand, moulding-die swing joint is in the die top, the stand upper end runs through the moulding-die with moulding-die sliding connection, it has the edge of a knife to open in the middle of the die upper end, be fixed with the drift in the middle of the moulding-die lower extreme, the drift with the edge of a knife is pegged graft, its characterized in that:

A blanking port is arranged in the middle of the lower end of the female die, the upper end of the blanking port penetrates through the knife edge, grooves are formed in the left side and the right side of the upper end of the female die, the grooves are positioned on the inner side of the upright post, a side tube is fixed on one side of the inner part of each groove close to the blanking port, a sliding block is connected in each side tube in a sliding manner, a railing is fixed in the middle of one end of each sliding block close to the blanking port, the tail end of the handrail penetrates into the blanking port, one end of each sliding block far away from the handrail is connected with a pull rope, the tail end of the pull rope extends out of the side pipe, one side of the inner part of each groove far away from the blanking port is rotatably connected with a rotating shaft, a winding drum is fixed on the outer part of each rotating shaft, a gear is fixed on the outer part of each rotating shaft, the gear is positioned in front of the winding drum, and racks are fixed on the left side and the right side of the lower end of the pressing die; every the recess tank bottom all evenly connects ten at least second buffer spring mutually, every the recess is inside all to be passed through second buffer spring elastic connection has the rubber slab, the rubber slab with the rack contacts, the second buffer spring other end with the rubber slab meets, the moulding-die lower extreme just is located it has four at least first buffer spring to be the even looks of annular around the drift to connect.

2. The mechanical precision blanking-punching die of claim 1, characterized in that: the outside that the slider is close to railing one end has connect the extension spring mutually, the extension spring other end with the side tube meets.

3. The mechanical precision blanking-punching die of claim 1, characterized in that: every the side pipe is kept away from the one end of blanking mouth is the open end, every the side pipe is close to the one end of blanking mouth is the blind end.

4. The mechanical precision blanking-punching die of claim 1, characterized in that: the tail end of the pull rope is wound on the outer wall of the winding drum on the same side.

5. The mechanical precision blanking-punching die of claim 1, characterized in that: the lower end of the rack extends into the groove on the same side, and the rack is positioned on one side of the gear far away from the side pipe and is in meshed transmission connection with the gear.

6. The mechanical precision blanking-punching die of claim 1, characterized in that: the lower end of each first buffer spring is connected with a pressing block.