CN2472851Y

CN2472851Y - Press slot breaking machine

Info

Publication number: CN2472851Y
Application number: CN 01240385
Authority: CN
Inventors: 魏庆同
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-27
Filing date: 2001-04-27
Publication date: 2002-01-23
Anticipated expiration: 2011-04-27

Abstract

The utility model relates to a notch pressing and splitting machine adopting flaw stress material feeding technology, which is characterized in that: a wedge piece for notch pressing and material splitting is arranged at a position in radial symmetry of the working piece to be fed; the wedge piece is fixed inside the wedge seat; the wedge seat does reciprocation motion under the drive of the power drive device; the wedge piece at one side of the working piece carries out positioning and notch pressing to the working piece; the wedge piece at another side quickly splits the working piece when the notch pressing wedge retreats. The utility model adopts notch pressing instead of lathe cutting ring-shaped groove, and realizes material splitting through flaw destabilization and expansion, therefore has the advantages in that: high efficiency, energy and material saving, with regular flat material splitting fracture.

Description

Press slot breaking machine

The utility model relates to a kind of Press slot breaking machine of using crack stress blanking technology, belongs to machine-building cold working field.

At present, to the king-sized industry of blanking batch,, all adopt process equipments such as sawing, shearing, hot shears, accurate-shearing both at home and abroad as industries such as bearing, instrument, gears.Wherein hot shears is mainly used in the blanking of high strength steel class materials such as bearing steel, tool steel.The hot shears line that domestic bearing industry extensively adopts, productivity ratio be 20-30 spare/minute, the disposable input of equipment reaches about 2,000,000 yuan, and its cutting stock weight error is bigger, be about 3%, the workpiece end face after the blanking is the shape of a hoof, and the inclination angle is greater than 5 °, energy consumption is big: raw material consume big because of the useless part of heated oxide skin and shearing.As for the band saw technology for blanking that domestic tool industry adopts, productivity ratio is very low especially, power consumption big, raw material and the big backward technology of instrument consumption.Therefore, machined industry field press for efficiently, low energy consumption, the new technology of blanking rule, new technology, new equipment.

As far back as 1978, master supervisor professor Wei Qingtong of Gansu Polytechnical Univ has just proposed the new theory of " crack technology and stress blank fracturing ", to the effect that " under the sensitive stress state that suitable preload mode causes; utilize the stress concentration effect of artificial breach, the expansion that can pass through crackle realizes quick with regular the separating of solid material continuous interfacial " of this theory.With this theoretical foundation is foundation, and " research of crack technology principle and stress blank fracturing family machine (tool) " project that Wei Qingtong professor that sweet worker is big and professor Lang Fuyuan preside over and finish is regarded as " a great invention " through the evaluation of State Planning Commission's tissue.But but this theory and technology fails to be converted into utility machine equipment for many years.Its main cause is: the blank cutter of original application crack technology preparation is to utilize the rotation lathe tool to go out cannelure along workpiece perisporium car earlier, adopt both shoulders centering three-point bending to fracture again, its production efficiency is 10-12 spare/second, and the every sword of cutter can only cut 500, therefore fails to be applied.

The purpose of this utility model is in order to provide a kind of utilization to press a mouthful alternative turning cannelure, realize fracture by the crackle unstable propagation, and is efficient, energy-conservation, economize raw material, the smooth pressure schistostoma line blank cutter of blanking fracture rule.

The purpose of this utility model can realize by following measure:

A kind of Press slot breaking machine comprises lathe, Power Drive Unit, supporting base, material conveying platform and workbench, and wherein the lathe bed of lathe and workbench link, and described Power Drive Unit is located on the workbench; Workpiece radial symmetric position in the need blanking is equipped with the voussoir seat, is placed with a voussoir in the voussoir seat at least; Described voussoir seat links to each other with connecting rod, and connecting rod drives by Power Drive Unit; Other is the supporting base that is axially arranged with along workpiece in voussoir seat both sides.

The utility model has following advantage compared to existing technology:

1, the utility model adopts crack technology stress blank fracturing theory, on the basis of original crack stress blank fracturing application technology, carried out bigger improvement, promptly utilize the wedge sword single press mouthful or the multiple pressure mouth replace original application technology along workpiece week sidecar mouth, trend when making the crackle expansion guarantees by stable stress state fully, realizes truly " stress blank fracturing ".

2, the utility model adopts guiding mechanism on by the supporting of blanking workpiece, the length that can avoid the workpiece blanking in the former application technology and the diameter of axle are than the irregular phenomenon of fracture that caused because of " back is out of control " of equidistant supporting, three-point fix blanking less than 1.8 o'clock: promptly utilize asymmetric boundary condition can solve asymmetric " after out of control " who causes how much, concrete grammar is to adopt not wait offset distance, the supporting-point distance that promptly length is held from the fracture to the workpiece is about M times of cutting length, can obtain more smooth fracture behind the utilization pressure mouth cracking fracture.

3, the utility model is equivalent to the velocity of sound owing to crack propagation velocity, thereby brisement efficient is high, and production efficiency can reach disconnected joint 2-3 second, then can reach 1 second disconnected joint as adopting the big Power Drive Unit of energy.

4, the utility model is compared in traditional cutting working method and hot shearings such as the same saw blade of blanking application facet, saw blade cut-outs, and actual consumption significantly reduces.

5, the utility model adopts the polyhedron voussoir to replace lathe tool at the workpiece upper pressure port, thereby its tool loss is few, and every sword can press mouth more than 10,000.

6, the fracture rule of the workpiece of the utility model blanking is smooth, " horseshoe mouth " of no punching blanking and fracture tilt problem, thereby can economize in raw materials.

Concrete structure of the present utility model is provided by the following drawings:

Fig. 1 is the vertical view of embodiment 1 of the present utility model

1-lathe, 2-Power Drive Unit, 3-connecting rod, 4-guide rail

5-supporting base, 6-positioning rule and guiding mechanism 7-workpiece thereof

8-voussoir seat, 9-voussoir, 10-material conveying platform

11-interchangeable formula rest pad, 12-workbench

Fig. 2 is the schematic perspective view of the utility model embodiment 1

Fig. 3 is the utility model embodiment 2 structural representations

Fig. 4 is enforcement 3 structural representations of the present utility model

The utility model is also incited somebody to action in conjunction with the accompanying drawings, and embodiment is described in further detail:

With reference to Fig. 1,2, be the structural representation of the utility model embodiment 1.This Press slot breaking machine comprises lathe 1, Power Drive Unit 2, supporting base 5, material conveying platform 10 and workbench 12, wherein the lathe bed of lathe 1 and workbench 12 link, described Power Drive Unit 2 is plunger displacement pump-cylinder drive, the piston rod that oil cylinder drives in it also is that connecting rod 3 is made back and forth movement, and oil cylinder 2 is located on the workbench 12; Radial symmetric position at the workpiece 7 of need blanking is equipped with voussoir seat 8, is placed with a voussoir 9 in voussoir seat 8: described voussoir 9 is the multiple edge body of band wedge sword; Voussoir seat 8 links to each other with connecting rod 3; Be provided with guide rail 4 on the workbench 12 of being close to voussoir seat 8 both sides, voussoir seat 8 can slide in guide rail 4.In addition in voussoir seat 8 both sides along two supporting bases 5 that are axially arranged with of workpiece 7.Install and fix in supporting base 5 along the interchangeable formula rest pad 11 of workpiece 7 axial adjustable positions, the rest pad 11 in the supporting base 5 is plane or V-arrangement surface bearing.

Side at the supporting base 5 of discharge end is provided with positioning rule and guiding mechanism 6 thereof.

The operation principle of present embodiment is as follows:

After the start, workpiece 7 is delivered to the end of positioning rule and guiding mechanism 6 thereof along material conveying platform 10, make workpiece 7 longitudinal registers, touch the gauge tap of chi end simultaneously, make two three-position four-way valves all switch to the operating position, pressure oil enters two oil cylinders 2 simultaneously, making piston rod 3 is that connecting rod stretches out simultaneously, this moment workpiece 7 both sides voussoir seat 8 under the promotion of connecting rod 3 rapidly near workpiece 7, and by resistance valves is set in the oil circuit, make the voussoir 9 of a side more first near workpiece 7 than the voussoir of opposite side, approaching voussoir 9 is pressed in workpiece 7 on the double base piece 11 with the three-point bending form earlier, makes workpiece 7 located lateral.At this moment, earlier the oil cylinder near side is obstructed, and pressure oil is all transferred in the oil cylinder of back near side, make the back near the voussoir of side faster near and be pressed on the workpiece 7.Because twin-tub is communicated with, pressure is identical in the cylinder, when formerly being responsible for pressing mouth near side, mouth is also pressed near side in the back, and promptly two cylinders move simultaneously, and two side pressure mouths carry out synchronously with curved workpieces 7, withdraw from up to first voussoir near side in good time, the back near the side voussoir subsequently with workpiece 7 brisements.

Behind workpiece 7 brisements and the blanking, the electrichydraulic control complete machine resets.

With reference to Fig. 3, be the utility model embodiment 2, the Power Drive Unit 2 of this embodiment also is plunger displacement pump-cylinder drive, but is placed with three voussoirs 9 in its voussoir seat 8: the rest pad 11 in the corresponding supporting base 5 is the V-arrangement supporting.All the other structures and working procedure and example 1 are together.

With reference to Fig. 4, be the utility model embodiment 3, the Power Drive Unit 2 of this embodiment is the cam that motor-reduction box-gear mechanism drives, and is reciprocating by the synchronous rotation drivening rod 3 of pair of cams, all the other structures and working procedure and example 1 are together.

Claims

1, a kind of Press slot breaking machine, comprise lathe (1), Power Drive Unit (2), supporting base (5), material conveying platform (10) and workbench (12), wherein the lathe bed of lathe (1) and workbench (12) link, and described Power Drive Unit (2) is located on the workbench (12); It is characterized in that being equipped with voussoir seat (8), in voussoir seat (8), be placed with a voussoir (9) at least in workpiece (7) the radial symmetric position of need blanking; Described voussoir seat (8) links to each other with connecting rod (3), and connecting rod (3) drives by Power Drive Unit (2); In addition be axially arranged with supporting base (5) along workpiece (7) in voussoir seat (8) both sides.

2, Press slot breaking machine as claimed in claim 1 is characterized in that the multiple edge body of described voussoir (9) for band wedge sword.

3, Press slot breaking machine as claimed in claim 1 is characterized in that being provided with guide rail (4) on the workbench (12) of being close to voussoir seat (8) both sides, and voussoir seat (8) can slide in guide rail (4).

4, Press slot breaking machine as claimed in claim 1 is characterized in that installing and fixing the interchangeable formula rest pad (11) along the axial adjustable position of workpiece (7) in supporting base (5).

5,, it is characterized in that when the voussoir (9) of voussoir seat (8) was one, the rest pad (11) of described supporting base (5) was plane or V-arrangement surface bearing as claim 1 or 3 described Press slot breaking machines; When the voussoir (9) in the voussoir seat (8) is two when above, rest pad (11) is the V-arrangement supporting.

6, Press slot breaking machine as claimed in claim 1 is characterized in that being provided with positioning rule and guiding mechanism (6) thereof in a side of discharge end supporting base (5).