CN201033339Y

CN201033339Y - Punch press tower-rotating punch die feeding device

Info

Publication number: CN201033339Y
Application number: CNU2007200518092U
Authority: CN
Inventors: 余启福
Original assignee: GUANGZHOU KETEC PRECISION TOOLING CO Ltd
Current assignee: GUANGZHOU KETEC PRECISION TOOLING CO Ltd
Priority date: 2007-05-23
Filing date: 2007-05-23
Publication date: 2008-03-12
Anticipated expiration: 2017-05-23

Abstract

The utility model relates to an upper die device for the punching die of punch turret, belonging to the punch and punching die device, which is characterized in that one to four locating pins are distributed evenly on the lower end face of the snap ring of the strike head assembly; six to twelve locating holes which are integral multiples than the quantity of the locating pins are distributed evenly on the circumference part of the upper end face of the guide sleeve corresponding to the locating pins. With the selective matching of the locating pins on the lower end face of the snap ring and the locating holes on the upper end face of the guide sleeve, while the punch cutting edge is grinded and shortened and needs to adjust the axial movement of the punch, the utility model enables to adjust the length of the punch quickly, and has the advantages of reliable location and simple structure.

Description

Punch press capstan head punch die upper mould device

Technical field

The utility model relates to the punch press die set, particularly the upper mould device of capstan head punch die.

Background technology

The drift upper end of the capstan head punch die upper mould device of existing punch press is fixed on the nose of punch by screw thread, the lower end of drift is sleeved in stop ring and the guide pin bushing, be set with ejector spring between the nose of punch on the drift and the stop ring, the top and bottom of ejector spring are pressed over respectively on the upper surface of the lower surface of the nose of punch and stop ring.When the drift cutting edge behind the contraction in length, needs to adjust the axial displacement of drift through grinding, to guarantee the axial height size of drift.Because drift moves down, stop ring is corresponding also to move down, and causes the ejector spring axial dimension to increase, and elastic force changes, and the change of patrix total height is big, causes the blanking performance change.Though between the nose of punch and guide pin bushing, set up the ejector spring stopping means, under the situation that punch length shortens, after adjusting, can keep the precompressed length of ejector spring and patrix overall size constant, thereby make the blanking of mould constant all the time, the service life of improving drift simultaneously.But its weak point is the punch die structure more complicated, and adjusts loaded down with trivial details.

Summary of the invention

The purpose of this utility model provides a kind of punch press capstan head punch die upper mould device, this device is after drift grinds, under the situation that punch length shortens, can adjust the axial displacement of drift apace, after adjusting, can keep the blanking performance of mould constant, improve the service life of drift, and simple in structure.

Technical solution of the present utility model is to be laid with one to four alignment pin on the lower surface of stop ring of attacking head sub-assembly of punch press capstan head punch die upper mould device, is laid with six to 12 locating holes that become integral multiple with the alignment pin respective numbers on the upper surface of guide pin bushing with on the corresponding circumferential location of described alignment pin.

Above-described attacking head sub-assembly can be provided with hollow guide rod, and the upper end of drift is fixed on by being threaded in the hollow guide rod endoporus.

The mobilizable lower end that is fixed on the hollow guide rod outside of the stop ring of above-described attacking head sub-assembly, the lower end edge of hollow guide rod is axially arranged with gathering sill, radially is provided with guide finger on the stop ring with on the corresponding position of described gathering sill.

Drift of the present utility model can by guide rod with form towards core, lower end of the guide rod by screw thread be connected on the core.

Operation principle of the present utility model is, when drift cutting edge and behind the contraction in length through grinding, only need the stop ring of attacking head sub-assembly is up drawn, the alignment pin that is fixed on the stop ring lower surface is pulled out from the locating hole of guide pin bushing upper surface, stop ring is rotated to an angle with respect to the guide pin bushing inhour, then the alignment pin on the stop ring lower surface is aimed at locating hole corresponding on the guide pin bushing upper surface and be pressed into, the stop ring lower surface is pressed on the upper surface of guide pin bushing, thereby adjusts the axial displacement of drift.

The utility model has the advantages that the axial displacement of adjusting drift is quick, the location is reliable, and simple in structure, and low cost of manufacture can prolong drift service life more than 2 times than existing upper mould device.

Description of drawings

Fig. 1 is application examples 1 organigram of the present utility model;

Fig. 2 is along the cutaway view of A-A among Fig. 1;

Fig. 3 is application examples 2 organigrams of the present utility model;

Fig. 4 is along the cutaway view of A-A among Fig. 3.

The specific embodiment

Embodiment 1

According to Fig. 1, shown in Figure 2, the utility model comprises attacking head sub-assembly 13, drift, guide pin bushing 11.Drift by guide rod 5 with form by being threaded towards core 9, drift also can be made whole.The nose of punch 2 of attacking head sub-assembly 13 is installed in the upper end of guide rod 5, and stop ring 7 matched in clearance are installed in the middle part of guide rod 5.On the guide rod 5 between the nose of punch 2 and the stop ring 7, be set with ejector spring 4.Two halves sheet back-up ring 3 is installed, also available circumferential clasp between the nose of punch 2 and the guide rod 5.In two halves sheet back-up ring 3 upper ends O RunddichtringO 1 is installed.Be processed with a gathering sill vertically on the lateral surface of guide rod 5, and radially be processed with a through hole on the corresponding stop ring 7 of this gathering sill, interference fit is equipped with its front end and inserts guide finger 8 in the above-mentioned gathering sill in this through hole.On the lower surface of stop ring 7 vertically the worker 1 (also can be 2,3,4) pin-and-hole is arranged, interference fit is installed with alignment pin 6 in the pin-and-hole.Be processed with 10 (also can be 6,7,8,9,11,12) locating holes 12 on the upper surface of the guide pin bushing below the stop ring 7 11, the number of locating hole 12 should be the integral multiple of the number of alignment pin 6.The bulge loop of stop ring 7 is inserted in the endoporus of upper end of guide pin bushing 11, be processed with an annular groove on the lateral surface of the bulge loop of stop ring 7, also be processed with an annular groove on the guide pin bushing 11 corresponding, form an annular rounded groove, O RunddichtringO 14 is installed in the annular rounded groove with it.One side of the body of guide pin bushing 11 is processed with axially directed groove, is installed with guide finger 10 with the corresponding position of described gathering sill on the lateral surface at the middle part of core 9.

Embodiment 2

The stop ring 7 of present embodiment is identical with embodiment 1 with the structure of guide pin bushing 11.The present embodiment difference from Example 1 is hollow guide rod 5 is installed in the attacking head sub-assembly 13, and drift 9 by guide rod be made into towards core whole.The upper end of hollow guide rod 5 is connected with the nose of punch 2 with O RunddichtringO 1 by a circumferential clasp 3.On the hollow guide rod 5 between the nose of punch 2 and the stop ring 7, be set with ejector spring 4.The upper end of drift 9 is processed with external screw thread, and this external screw thread is connected with the internal thread of the upper end of hollow guide rod 5.The lower end of hollow guide rod 5 is processed with the flange of band bellmouth, and this bellmouth is sleeved on the tapered pole at drift 9 middle parts.Stop ring 7 is sleeved on the outside of the lower end of hollow guide rod 5, and the lower surface of the round bulge loop of stop ring 7 leans against on the upper surface of flange of hollow guide rod 5.Hollow guide rod 5 with stop ring 7 on the guide finger 8 corresponding bodies of rod on be processed with gathering sill vertically.

Claims

1. punch press capstan head punch die upper mould device, comprise attacking head sub-assembly, guide pin bushing, drift, it is characterized in that being laid with one to four alignment pin on the lower surface of stop ring of attacking head sub-assembly, be laid with six to 12 locating holes that become integral multiple with alignment pin quantity on the upper surface of guide pin bushing with on the corresponding circumferential location of described alignment pin.

2. punch press capstan head punch die upper mould device according to claim 1 is characterized in that the attacking head sub-assembly is provided with hollow guide rod, and the upper end of drift is fixed on by being threaded in the hollow guide rod endoporus.

3. punch press capstan head punch die upper mould device according to claim 2, the lower end that is fixed on the hollow guide rod outside that it is characterized in that the stop ring activity of attacking head sub-assembly, the lower end edge of hollow guide rod is axially arranged with gathering sill, radially is provided with guide finger on the stop ring with on the corresponding position of described gathering sill.

4. according to claim 1 or 2 or 3 described punch press capstan head punch die upper mould devices, it is characterized in that drift by guide rod with forms towards core, lower end of the guide rod by screw thread with on core, be connected.