Combined tool for assisting punching die of punching machine

Abstract

The utility model relates to a combined tool for assisting a punch die of a punch press. In order to fill the blank in the prior art, the auxiliary punch die combination tool comprises a bottom plate, a top plate, a positioning plate and an elastic pressing disc, the bottom plate and the top plate are connected through four supporting columns, center through holes are formed in the center of the bottom plate and the center of the top plate, a matched stamping cutter disc is fixed in the center through holes, and the upper surface of the matched stamping cutter disc is flush with the upper surface of the top plate. Two parallel long slotted holes are further formed in the top plate, the positioning plate comprises a long plate and a baffle fixed to one side of the long plate, the long slotted holes are formed in the long plate, the positioning plate is placed on the top plate and fixed through bolts, the elastic pressing disc comprises an upper disc and a lower ring disc, the upper disc is fixed to the middle of a matched punching tool bit, and a plurality of guide holes are formed in the periphery of the upper disc. A guide column is arranged in each guide hole in a penetrating mode, and the portions, between the upper disc and the lower ring disc, of the guide columns are sleeved with spiral springs respectively. The punching die facilitates workpiece positioning, does not need to hold a workpiece by hand at the moment of punching, and is suitable for being used in cooperation with a punching machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to an auxiliary punch press die combination tool. BACKGROUND

[0002] In the past punch press processing process, the time is consumed before operation preparation, the manual scribing positioning, the position adjustment, the fixing and other procedures of the workpiece to be processed are time-consuming and have big error, and the processing quality is difficult to guarantee.

[0003] The Chinese utility model patent with the publication number CN204294731U, which was authorized on April 29, 2015, discloses a self-adjusting numerical control wheel cover puncher for impeller hole opening, comprising: a workbench, which is arranged above the ground and is fixed with a support piece for sleeving an impeller, a cylindrical shaft is arranged in the middle of the support piece, a support circular plate is connected to the top end of the cylindrical shaft, and an equal division disc is connected to the bottom end of the cylindrical shaft, and the equal division disc is drivingly connected with a motor; a punching device, which is arranged on a support connected with the workbench, the punching device comprises a punching cylinder and a punch cutter connected with the punching cylinder, a buffer piece is sleeved on the punch cutter, a guide rail is further arranged on the support, and the punching device is movably connected with the guide rail; and a hydraulic power device, which is drivingly connected with the punching cylinder.

[0004] The puncher has the following problems as the conventional punch press:

[0005] 1. The punch cutter disc (i.e. the support circular plate in CN204294731U) has a small area and cannot support a large workpiece, so the workpiece must be manually held during punching of the large workpiece, and the hand holding the workpiece is easily injured during punching;

[0006] 2. There is no adjustable positioning piece, so the workpiece is inconvenient to position on the punch press during punching. SUMMARY

[0007] The utility model solves the technical problem of filling the above-mentioned blank of the prior art, and provides an auxiliary punch press die combination tool, which has a simple structure, is convenient to adjust, is convenient for workpiece positioning, and does not need to manually hold the workpiece during punching.

[0008] To solve the above technical problems, the auxiliary punch press die combination tooling comprises a bottom plate, a top plate, a positioning plate and an elastic pressure disc, the bottom plate and the top plate are connected through four supports, center through holes are formed in the center of the bottom plate and the center of the top plate, a matching punch cutter disc is fixed in the center through hole, the upper surface of the matching punch cutter disc is flush with the upper surface of the top plate, notched grooves are formed on the two sides of the bottom plate, a bolt is arranged in each notched groove, and the notched grooves are fixed in dovetail grooves of a workbench of a matching punch press, two long groove holes parallel to each other are formed in the top plate, the positioning plate comprises a long plate and a baffle fixed on one side of the long plate, the long plate is provided with a long groove hole, the positioning plate is placed on the top plate, the long groove hole on the long plate intersects with the projection of the two long groove holes on the top plate on the same horizontal plane, and a bolt is arranged at the intersection, and the elastic pressure disc comprises an upper disc and a lower ring disc, the upper disc is fixed in the middle of a matching punch cutter head, a plurality of guide holes are formed around the upper disc, a guide column is arranged in each guide hole, the lower end of each guide column is connected to the lower ring disc, an adjusting nut is arranged at the top end of each guide column, and a spiral spring is arranged around the guide column between the upper disc and the lower ring disc, the two ends of the spiral spring are arranged on the upper disc and the lower ring disc, and the lower end of the matching punch cutter is higher than the lower surface of the lower ring disc.

[0009] By adjusting the position of the positioning plate on the top plate, the adjacent edges of the workpiece to be punched are arranged on the long plate and the baffle respectively and are fixed by the bolts, so that the positioning requirements of most workpieces can be met, the upper surface of the top plate is flush with the upper surface of the matching punch cutter disc, and large-area support can be provided for the workpiece to be punched, when the matching punch cutter is pressed down, the lower ring disc is first pressed on the workpiece to fix the workpiece, then the matching punch cutter is continuously pressed down to complete the punching, in this process, the lower ring disc and the guide column are supported by the workpiece and do not descend any more, each spiral spring is compressed, and the workpiece is clamped between the lower ring disc and the top plate, so that the workpiece does not need to be manually held.

[0010] As an optimization, two rectangular notches connected with the center through hole are formed in the top plate, so that the matching punch cutter disc can be conveniently disassembled and replaced.

[0011] The auxiliary punch press die combination tooling has the advantages of simple structure, convenient adjustment, convenient workpiece positioning, no need to manually hold the workpiece during punching, and suitability for being matched with a punch press. BRIEF DESCRIPTION OF DRAWINGS

[0012] The auxiliary punch press die combination tooling will be further described below with reference to the drawings:

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the auxiliary punch press die combination tooling.

[0014] In the diagram: 1 is the base plate, 2 is the top plate, 3 is the positioning plate, 31 is the long plate, 32 is the baffle, 4 is the support column, 5 is the punching disc, 6 is the notch, 7 is the bolt, 8 is the long slot, 9 is the upper plate, 10 is the lower ring plate, 11 is the punching head, 12 is the guide post, 13 is the adjusting nut, 14 is the helical spring, and 15 is the rectangular notch. Detailed Implementation

[0015] Implementation method one: such as Figure 1 As shown, this auxiliary punch press die assembly includes a base plate 1, a top plate 2, a positioning plate 3, and an elastic pressure plate. The base plate 1 and the top plate 2 are connected by four pillars 4. Both the base plate 1 and the top plate 2 have central through holes, in which the punch cutter disc 5 is fixed. The upper surface of the punch cutter disc 5 is flush with the upper surface of the top plate 2. The base plate 1 has notches 6 on both sides, each notch 6 equipped with a bolt 7, which is then fixed to the dovetail groove of the punch press worktable (not shown). The top plate 2 also has two parallel elongated slots 8. The positioning plate 3 includes a long plate 31 and a baffle 32 fixed to one side of the long plate 31. The long plate has elongated slots 8. The positioning plate 3 is placed on the top plate. On plate 2, the long slot 8 on its long plate 31 intersects with the projection of the two long slots 8 on the top plate 2 on the same horizontal plane, and bolts 7 are respectively installed at the intersection. The elastic pressure plate includes an upper plate 9 and a lower ring plate 10. The upper plate 9 is fixed to the middle of the punch head 11. Multiple guide holes are opened around the upper plate 9, and a guide post 12 is inserted into each guide hole. The lower end of each guide post 12 is connected to the lower ring plate 10. An adjusting nut 13 is provided at the top of each guide post 12. A helical spring 14 is sleeved on the guide post 12 between the upper plate 9 and the lower ring plate 10. The two ends of the helical spring 14 abut against the upper plate 9 and the lower ring plate 10 respectively. The lower end of the punch head 11 is higher than the lower surface of the lower ring plate 10. The top plate 2 has two rectangular notches 15 connected to the central through hole.

Claims

1. An auxiliary punch press die assembly tooling, characterized in that: The system includes a base plate, a top plate, a positioning plate, and a spring-loaded pressure plate. The base plate and top plate are connected by four pillars. Both the base plate and top plate have central through holes, in which the punch plate is fixed. The upper surface of the punch plate is flush with the upper surface of the top plate. The base plate has notched slots on both sides, each with a bolt for fixing it to a dovetail groove in the punch press worktable. The top plate also has two parallel elongated slots. The positioning plate includes a long plate and a baffle fixed to one side of the long plate. The long plate has elongated slots. The positioning plate is placed on the top plate. The projections of the long slots on the upper plate and the two long slots on the top plate on the same horizontal plane intersect, and bolts are respectively inserted at the intersection. The elastic pressure plate includes an upper plate and a lower ring plate. The upper plate is fixed in the middle of the punch head. Multiple guide holes are opened around the upper plate. A guide post is inserted in each guide hole. The lower end of each guide post is connected to the lower ring plate. An adjusting nut is provided at the top of each guide post. A helical spring is sleeved on the guide post between the upper plate and the lower ring plate. The two ends of the helical spring abut against the upper plate and the lower ring plate respectively. The lower end of the punch head is higher than the lower surface of the lower ring plate.

2. The auxiliary punch press die assembly tooling according to claim 1, characterized in that: Two rectangular notches are cut into the top plate and connected to the central through hole.

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