CN201266554Y - Oiling device for stamping capacitor aluminum case - Google Patents

Abstract

The utility model provides an oil adding device used during the punching of a capacitor aluminium shell; the punching machine is provided with more than two punching dies which are arranged linearly and a workpiece moving device (7) which is used for moving the workpiece from the previous die to the next die; the oil adding device comprises an oil dipping pool (4) and a pressing rod (2); the oil dipping pool is arranged at the concave die position of the first passage; and the pressing rod is arranged at the convex die position of the first passage. The oil adding device used during the punching of the capacitor aluminium shell adopts multi-passage punching die structure, is provided with the oil dipping pool and the pressing rod at the punching die position of the first passage, and presses the aluminium shell from the pressing rod to the oil dipping pool so as to carry out the oil adding operation. Compared with the prior art, as the oil adding method in an air blowing pipe is canceled, the oil adding device eliminates the phenomenon that the sand and dust are forcibly blown onto the surface of the aluminium shell, thus greatly improving the qualified rate of the product and prolonging the service life of the die; according to the statistics in practical use, the reject rate is reduced from 10 percent to below 1 percent.

Description

Refueling device during the aluminium shell of capacitor punching press

Refueling device when technical field the utility model relates to a kind of aluminium shell of capacitor punching press belongs to capacitor dedicated manufacturing equipment and metal stamping technical field of processing equipment.

Background technology needs an amount of lubricating oil in the punching course of aluminium shell of capacitor, to keep lubricating between aluminum hull and pull and stretch punching out mould, reduce the mould heating and improve useful life.Be gas blow pipe used when utilizing vibrating disk to carry the blank aluminum hull in the past, oil was added in the gas blow pipe, and connected band of gas oil and be blown into the aluminum hull surface.Owing to limited by production workshop environmental condition, the sand and dust soil that often has the workshop environment in the air blowing, make that sending into Drawing Die punching press capacitor blank aluminum hull surface before may be stained with tiny sand-dust impurity, scratch or clamp-on the aluminium shell of capacitor surface when causing punching press, influence product quality, attractive in appearance, simultaneously, the wearing and tearing of mould have also been quickened.

In addition, a kind of punch process of novel film capacitor aluminum hull, owing to coated the rete of insulation above it, the method of above-mentioned oiling just might cause scratching of insulating film layer and cause scrapping, perhaps dust is clamp-oned dielectric film and is formed small opening, stain, influence the quality of product, according to the preliminary statistics, the aluminum hull percent defective that causes during this method punching press is about 10%.

Workpiece shift device in the automatic punching device of China's utility model patent ZL 200720114664.6 disclosed a kind of aluminium shell of capacitor, it uses on the punch press that a plurality of stamping dies of the equidistant arrangement of straight line have been installed, it has the clip of relative punch die folding under knockout plate, be connected on the clip toggle mechanism with the punch die synchronization action, and the workpiece of preceding one mould is shifted to one mould in back.

Summary of the invention is at the problems referred to above, the refueling device when the utility model provides a kind of aluminium shell of capacitor punching press that improves the product percentage of A-class goods, prolongs die life.

Refueling device during aluminium shell of capacitor punching press of the present utility model, the a plurality of stamping dies of plural linear array are arranged with the workpiece shift device of mould together after the workpiece of preceding mould is shifted on the used punch press, said refueling device comprises and dips in oil sump and depression bar, dip in oil sump and be installed on the die position in first road, depression bar is installed on the punch position, first road.

Refueling device during aluminium shell of capacitor punching press of the present utility model is used multiple tracks stamping die structure, dips in oil sump and depression bar with having set up on the stamping die position, former first road, aluminum hull is pressed into by depression bar dips in oil sump and refuel.Compared with prior art, the utility model is owing to the oiling method of having cancelled in gas blow pipe, eliminated the mandatory phenomenon of being stained with the aluminum hull surface of blowing of the sand and dust regolith, therefore can improve the percentage of A-class goods of product and the useful life of mould greatly, used the statistics percent defective to drop to below 1% through reality.

Refueling device during aluminium shell of capacitor punching press of the present utility model, one axial through bore is arranged on the described depression bar, the depression bar bottom is a planar end surface, the other end of perforation joins through an air valve and negative pressure source, air valve and one make depression bar go upward to peak cut off in the past with come downwards to minimum point before the controlling organization opened be connected, this controlling organization normally be installed on the punch press main shaft cam and as the control lever on the air valve of driven member, in the depression bar perforation negative pressure is arranged and aluminum hull is proposed the purpose of dipping in oil sump to reach.

Refueling device during aluminium shell of capacitor punching press of the present utility model, described dipping in is lined with sponge in the oil sump, utilize the characteristic of sponge to reach constantly by fuel sucking pipe from the oil storage tank oil suction with prevent to dip in oil sump and spatter oily purpose.

Description of drawings Fig. 1 is the partial elevation view of the utility model one embodiment, among the figure: the 1-ram, the 2-depression bar, 3-blank aluminum hull, 4-dips in oil sump, and 5-carries aluminum hull equipment, 6-workbench, 7-manipulator.

Fig. 2 is the enlarged drawing of area I among Fig. 1, among the figure: the 1-convex mould base, the 2-depression bar, 3-blank aluminum hull, 4-dips in oil sump, and 41-dips in oil sump, 42-sponge, 5-aluminum hull delivery track, 6-workbench, 7-manipulator.

Embodiment as shown in Figure 1, 2, refueling device during this routine aluminium shell of capacitor punching press, used punch press has a plurality of stamping dies of linear array with the workpiece shift device (manipulator) 7 of mould together after the workpiece of preceding mould is shifted to, and refueling device has and is installed in dipping in oil sump 4 and being installed in the depression bar 2 of the first punch position on the ram 1 of the first die position on the workbench 6.The depression bar bottom is planar end surface and an axial through bore is arranged.When ram 1 the drive of punch press driving wheel following towards the time, grasp through carrying blank aluminum hull 3 that aluminum hull equipment 5 sends here and band by manipulator to the below of the top depression bar head that dips in oil sump, and under ram continues towards the time depression bar head inserted in the blank aluminum hull cavity until contacting with the aluminum hull bottom.Manipulator is opened and depression bar continues down to dash, and is subjected to the air valve of cam control to connect the depression bar centre bore to the aluminum hull air exhauster on main shaft, makes the depression bar front end hold aluminum hull, and aluminum hull is brought into dip in oil sump and refuel.When depression bar rises, when the effect of aluminum hull continuation compression rod negative pressure rises to the crawl position of manipulator from dip in oil sump, manipulator closes up catches aluminum hull, this moment, air valve was cut off and the negative pressure disappearance, depression bar continue to rise, and the aluminum hull that dipped in oil is grasped the back horizontal direction by manipulator and is transplanted on the first road stamping die (the former second mould position) and carries out punching press.

As a kind of improvement, in dipping in oil sump 41, be lined with the sponge 42 of energy oil suction, insert a tubule in the sponge bottom, the other end of tubule is inserted liquid level and is lower than in the oil storage tank of spongy surface, utilize depression bar through the extruding of aluminum hull, lubricating oil is constantly sucked from oil storage tank by tubule dip in oil sump and be covered with sponge sponge.

Claims (4)

1, the refueling device during a kind of aluminium shell of capacitor punching press, the a plurality of stamping dies of plural linear array are arranged with the workpiece shift device of mould together after the workpiece of preceding mould is shifted on the used punch press, it is characterized in that said refueling device comprises dips in oil sump and depression bar, dip in oil sump and be installed on the die position in first road, depression bar is installed on the punch position, first road.

2, the refueling device during aluminium shell of capacitor punching press as claimed in claim 1, it is characterized in that an axial through bore is arranged on the described depression bar, the depression bar bottom is a planar end surface, the other end of perforation joins through an air valve and negative pressure source, air valve and make depression bar go upward to peak cut off in the past with come downwards to minimum point before the controlling organization opened be connected.

3, the refueling device during aluminium shell of capacitor punching press as claimed in claim 2, the controlling organization that it is characterized in that said air valve be mounted on the punch press main shaft cam and as the control lever on the air valve of driven member.

4, the refueling device during aluminium shell of capacitor punching press as claimed in claim 1 is characterized in that described dipping in is lined with sponge in the oil sump, and dipping in oil sump has fuel sucking pipe to connect oil storage tank.

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