CN1136989A - Vibration finishing method and apparatus for same - Google Patents

Abstract

In the so-called single-sided punch pressing device, a compound material is fixed to a lower metal mold having a lower die hole into which a punching tool can be inserted. While the compound material is held between the lower metal mold and a pressing plate having an upper die hole into which the punching tool can be inserted, a minute-vibration of frequency of several ten hertz is applied onto the punching tool and then. the compound material is punched out. After that, the punching tool is temporarily drawn from the hole to be worked in the compound material. The punching tool is re-inserted into the worked hole in the compound material while a non-vibration or the minute vibration of frequency of several ten hertz is applied again onto the punching tool.

Description

Vibration finishing method and device thereof

The present invention relates to by press more particularly, to relate to by a press and on printed substrate, to make the vibration finishing method in hole and vibrate precise machining device to the printed substrate or the perforation of similar plate made from carry out the hole method for processing by synthetic material.In this explanation, " synthetic material " this speech means mainly by a kind of thermoplastic resin as matrix, and with a kind of reinforcement material or a kind of packing material (such as glass fibre, carbon fiber, or resin) mix the synthetic material that constitutes mutually, wherein thermoplastic resin comprises ABC resin (butadiene-styrene rubber), PVC-U, Merlon, or similar material.

Normally, boring method and be used as the method for getting through the hole by the perforation of a press and hole processing method etc. to it such as in printed substrate (below be referred to as " plate ").Directly plate is cut with a bench drill and the method for processing of boring a hole in, the surface roughness Ra of the inner surface in the hole that is processed (leaving the average surface roughness of centre of surface line) is generally 10 to 30 microns, there is fabulous shape in hole itself.This technology is used for through hole processing the most frequently, and quite high reliability is arranged.Yet, have to directly process these through holes singly with a bench drill, therefore, the shortcoming of appearance is that the efficient of machining hole is quite low, its cost is very high.

On the other hand, in being referred to as a side perforation punching course, plate is placed on the pressing mold, have the pressing mold hole on the pressing mold, form through hole onboard by a punch (following only be referred to as " drift "), this drift is aimed at the pressing mold hole, can be at short notice, with low cost processing through hole, make this perforation pressing that high productivity ratio be arranged, and it can be processed as various through holes.In addition, the advantage of this technology is to realize simply the punching process for the complexity in the hole of special shape.Yet brought various types of problems: can cause crackle between the hole, or the marginal portion in hole be bleached (difference that depends on the material of plate), this degenerates plasticity.Therefore, in order addressing these problems, must to heat printed substrate, to make and can reduce crackle, this has reduced the productivity ratio of press.Yet in this case, another problem is expansion and the contraction owing to material, and the dimensional accuracy in hole degenerates.

Be described under the typical temperature below with reference to Fig. 7, in punching course by drift, the dimensional accuracy in hole.As shown in Figure 7, the size in the hole on upper and lower surperficial 51 and 52 of plate 55 is made basically identical with the diameter 54a of the diameter 53a of drift 53 and pressing mold 54 respectively.Yet because the metamorphosis of plate 55, the mid portion in hole is outwards outstanding.The diameter variation of this ledge 56 is not constant usually, and this is that diameter 53a is little to 0.05 to 0.2 millimeter owing to due to the condition of thickness of picture plate and so on, still in general, be about 0.8 to 1.5 millimeter hole for diameter.Also have, the surface roughness extreme difference of the inner surface 57 in the hole of being worn, Ra are 140 microns or higher, and this is because the surperficial 57b that its quilt fractures is longer than the surperficial 57a that is sheared of upper part.Therefore, this traditional perforation stamping technology can not be used to process through hole.

In addition, as shown in Figure 8, the speed of press is being reduced, and the gap of the diameter of pressing mold 54 do under the little situation than drift 53, can make the length of the surperficial 57c that is sheared longer, and can make the surperficial 57d that is fractureed shorter than the surperficial 57b that is fractureed than the above-mentioned surperficial 57a that is sheared.Yet it is 100 to 120 microns that surface roughness still is restricted to Ra, and this just has improvement slightly than above-mentioned situation.Other result does not have different with the situation shown in Fig. 7.

Therefore, propose a kind of method for punching, carried out double piercing in the method, thereby improved the roughness of the inner surface in the hole of wearing.According to this method for punching, in first time perforation procedure, use the diameter drift littler 0.1 millimeter that plate is bored a hole earlier than last forming dimension.Then, the ledge with the punch holder plate of last forming dimension cuts away.According to the method, as shown in Figure 9, reduced the surface that is fractureed significantly, and surface roughness to become Ra be 60 to 80 microns, improved the precision in hole simultaneously.Yet the problem of appearance is the positioning accuracy that is difficult to obtain the hole between first and second processing, and the course of processing is divided into two stages.Therefore, in mass production, there is serious problem.

In the uncensored patent publications No.Sho.57 of Japan (1982)-102310, announced another kind of traditional puncturing technique.As can seeing among Figure 10, plate 61 is sandwiched in, and between the dip mold 62 and 63, and is provided with, and low punch 66 and 67 faces toward them, formed pressing mold hole 64 and 65 in the dip mold 62 and 63.When last, low punch 66 and 67 is with respect to by last, low punch 66 and 67 and the plate 61 clamped of pressing mold 62 and 63 when pumping, and plate 61 is perforated.After plate 61 is perforated, on, low punch 66 and 67 continues to pump.This method is referred to as vibration fine finishining and perforation method.Yet, according to this vibration fine finishining and perforation method, the side surface of drift, particularly near the part internal diameter in hole can since by pressing mold (on, low punch vibrates therein, make and can shear the hole disconnected fully) vibrational energy that produced in the plate clamped and be melted and be out of shape, and be easy to be sheared disconnected.Also have, according to this vibration fine finishining and perforation method, this side surface is pressing the inner surface (deliquescing owing to vibrational energy of this face) in hole, and the side surface of drift can be transferred on the inner surface in hole.Therefore, can obtain the hole of very satisfied inner surface.Like this, can obtain being very suitable for hole as through hole.Yet according to the method, the problem that is occurred is that the structure of machine is very complicated, that is to say, require to have a pair of on, low punch and a pair of on, dip mold, and metal die becomes very complicated, cost improves.In addition, also produced the problem that is difficult to remove the perforation residue.

In order to address these problems, for example, the uncensored patent publications No.Sho.62 of Japan (1987)-241700 has announced a kind of method, wherein a drift with a side perforation punching structure is applied one type vibration, so that punch repeatedly the mode of a slight distance of reciprocating motion plate is bored a hole, rather than in a stroke, once plate is bored a hole.According to the method, the problem as peeling off of crackle between the hole and base material on the plate and so on can occur hardly.Be difficult to occur the ruined situation of edge's plasticity in hole.Utilize the material powder or the dust that are ground the plate that produces owing to plate subtly, and they are solidificated on the inner surface in hole by punch.Subsequently, the inner surface of cutting hole, and lean on the inner surface and the friction between the punch in hole that this inner surface is carried out fine finishining, make to process hole with fabulous inner surface.These advantages are very similar to above-mentioned vibration fine finishining and the resulting effect of perforation method.Opposite with above-mentioned vibration fine finishining with perforation method, according to the method for this use one side blow head, even, can not produce heat energy basically, and only can carry out mechanical shearing continuously when repeatedly pump a small distance or make drift when vibration of drift.The inner surface that is sheared in hole is rough.In other words, when the surface in hole because when being melted under the effect of the frictional heat that frictional force produced, the surface of drift not have to be transferred on the inner surface in hole as in vibrating fine finishining and perforation method.Therefore, according to a this side perforation method, surface roughness has further been improved, but has reduced dimensional accuracy significantly, and compares with perforation method in the course of processing by producing more powder or dust on the plate with vibration fine finishining.

Fully take into account above-mentioned problem, the objective of the invention is to address these problems, and provide a kind of vibration finishing method and device, it processes the hole with good surface roughness, and can in synthetic material plate, not produce distortion, and improve precision significantly and cut down finished cost as the printed substrate.

According to the present invention, above-mentioned purpose and other purpose can realize by adopting a kind of improved vibration finishing method in the side perforation decompressor, this device can be mounted in it the synthetic material as printed substrate one class on the pressing mold that has the pressing mold hole, and be provided with a punch, it can penetrate this synthetic material, is inserted in the pressing mold hole.In the method, synthetic material is fixed on the pressing mold, and is provided with a pressing means, be used for synthetic material is pressurizeed.Perforation procedure comprises the steps: with punch synthetic material to be penetrated, and with pressing means synthetic material is pressurizeed artificially simultaneously, and punch is applied tens hertz microvibration; In addition, extracting out in the hole that is processed of punch by synthetic material, with pressing means synthetic material is pressurizeed artificially simultaneously; And punch is inserted once more in the hole that is processed of synthetic material, punch is not applied vibration or applies tens hertz microvibration once more, with pressing means synthetic material is pressurizeed artificially simultaneously.

According to another aspect of the present invention, in a kind of vibration finishing method, the operation that punch is extracted out and inserted is repeated repeatedly, to improve the form accuracy in hole.In addition, even make the inner surface in hole because the mutual slip of the inner surface in punch and hole and after by fine finishining at perforation procedure, still punch is not applied vibration or applies tens hertz microvibration, this makes the roughness of inner surface in hole improve, and reduces powder or the dust that plate produced.

According to another aspect of the present invention, in an a kind of side perforation decompressor, it can be mounted in it the synthetic material as printed substrate one class on the pressing mold that is processed with the pressing mold hole, and being provided with a punch, it can penetrate this synthetic material, is inserted in the pressing mold hole, simultaneously punch is applied tens hertz microvibration, use a kind of vibration precise machining device, wherein synthetic material has been fixed on the pressing mold, and be provided with a pressing means that is used for to this synthetic material pressurization.This pressing means comprises an increased pressure board and a metal die connecting plate (upper mold that has punch is connected the top of it) that is pressed against on the synthetic material, and a hydraulic cylinder is arranged between increased pressure board and metal die connecting plate, make this cylinder to provide adjustable pressure increased pressure board.This increased pressure board is provided with a pressing mold hole, and punch is assembled in this hole slidably with a little gap that is located between them.

Also have, can be understood as,, between increased pressure board and metal die connecting plate, can be provided with picture polyurethane in the position of hydraulic cylinder, an elastic component of spring and so on (it can provide adjustable pressure to increased pressure board), and the regulating part that can regulate the elastic force of this elastic component.As a result, can control the pressure that adds onboard easily and simply by a simpler structure.

According to the present invention with said structure, when the hole is processed, simultaneously tens hertz vibration is applied on the drift, thereby and pressing means made to press make onboard in a side perforation decompressor when plate pressurizeed, along with the hole being carried out in the course of processing drift is inserted in the plate for the first time, plate is cut off gradually.Like this, be processed into a hole, and drift is inserted in the hole.At this moment, the inside of the plate mesopore power of bearing by pressing means makes it be pressed against on the side of drift.As a result, the inner surface in hole is pressed towards drift.Owing to there is tens hertz vibration to be applied on this drift, thus since the inner surface of the pressure plare mesopore of pressing means be pressed against on the drift more tightly.Like this, make by the surface of meticulous shearing and become more smooth.

Though subsequently drift when extracting out in the hole, the drift in the hole that is processed in the plate does not apply resistance, pressurized of plate is being pressed, therefore, the longitudinal cross-section of plate mesopore has formed a ledge.Subsequently, when drift is inserted in this hole once more, when simultaneously drift not being applied vibration or applying tens hertz vibration, this ledge is cut off, and the inner surface in hole is polished again by drift simultaneously.

When drift was extracted out in once more by the hole, the longitudinal cross-section in the hole in the plate of pressurized pressurization can form a ledge once more.Yet the size of this ledge can reduce.In addition, and since the pressure of pressing means and the frictional heat that vibration caused of drift, the surperficial deliquescing that is sheared in hole, and the internal stress of ledge also can reduce.Therefore, when pressing means is taken away on by plate, thereby when unclamping pressure when drift is extracted out in by the hole, because the cause of the elastic recovery of plate, this protuberance branch disappears basically, can obtain the hole that forming accuracy high one has polished greatly.More particularly, because pressing means is designed to when repeatedly drift being penetrated the hole and being extracted out by the hole synthetic material be pressurizeed, so plate can not move, positioning accuracy also is gratifying in the process of repeatedly inserting and extracting out drift.

By this vibration finishing method in the side perforation decompressor of the present invention, can obtain smooth hole, it does not have the convex ridge part basically, and has a good surface roughness, in synthetic material plate, can not produce distortion, improve precision significantly and cut down finished cost as the printed substrate.

Pressing means is designed to base material be pressurizeed towards the center of plate mesopore with pressure, and this pressure is controlled, and makes that the cross section in hole can not produce a convex ridge or protuberate when decontroling this pressure.In addition, because punch patchhole and by extracting out in the hole several times more repeatedly can improve the forming accuracy in hole, this makes can improve the form accuracy in hole.If come the inner surface in hole is carried out fine finishining with the mutual slip between the inner surface in punch and hole, even simultaneously after punch is extracted out in by the hole, still on punch, apply tens hertz microvibration, so, the inner surface in hole will be owing to frictional heat or similarly former thereby denuded, and its surface roughness will be improved.

Increased pressure board is provided with a pressing mold hole, and punch is assembled in this hole slidably with a little gap that is located between them, and this makes them exert pressure to the edge of plate mesopore, and is used for pilot punch.If adopt hydraulic cylinder to control the pressure of pressing means, can realize complicated control, such as in the course of processing in hole to the control of the change of the pressure of pressing means.Therefore, can set best perforation and hole processing conditions simply.

Pressing means of the present invention is similar to the stripper that a plate is shifted out with the inside of cause metal die, and this stripper is used for the press machine of prior art at large.Yet traditional stripper can not be used for moving of confinement plate, does not also consider the strain of plate.Therefore, traditional stripper can not play effect of the present invention.Also have, above-mentioned Japanese uncensored patent publications No.Sho.62-241700 has announced a kind of anchor clamps that are used for clamping plates.In this publication, do not specify the structure and the use of these anchor clamps, yet, we can say that at least these anchor clamps do not provide the function of the strain that overcomes plate.In addition, Japanese uncensored patent publications No.Sho.57-102310 has announced a kind of being provided with, the vibration finishing method of low punch.In the method, plate holder between top die and dip mold, yet, be not provided with them to such an extent that can prevent that material from respect to the moving of the motion of upper punch and low punch, not making their do and the such action of the present invention yet.

Also have,, and be provided with a pressing means and be used for pushing down synthetic material, just can realize the present invention as long as being provided with a vibrating member in a side perforation decompressor is used for providing vibration to drift.Therefore, can successfully use a kind of metal die that adopts traditionally, this helps providing a kind of vibration finishing method and device that carries out hole processing with low cost.

In addition, according to the present invention, owing to can adopt a regulating part or adopt one can regulate the hydraulic cylinder of plate institute applied pressure is controlled the pressure that is applied on the plate simply, so can be easily and set most of desired perforation conditions simply.

Other characteristics of the present invention and advantage will be seen clearly by following connecting in the description of being done with accompanying drawing.Have in the accompanying drawing:

Fig. 1 is the sketch according to the vibration precise machining device of the first embodiment of the present invention;

Near Fig. 2 part the metal die shown in Figure 1 that draws;

Fig. 3 is the schematic block diagram of hydraulic control circuit of the device of Fig. 1;

Fig. 4 is a kind of output waveform figure that is applied to the elementary instruction signal on the punch of device of Fig. 2;

Fig. 5 is the another kind of output waveform figure of the elementary instruction signal on the punch of the device that is applied to Fig. 2 similarly;

Fig. 6 illustrates the experimental result that the present invention compares with the method for punching of prior art;

Fig. 7 is the longitudinal sectional drawing according to a kind of hole of prior art processing method made;

Fig. 8 is the longitudinal sectional drawing according to the hole of another kind of prior art processing method made;

Fig. 9 is the longitudinal sectional drawing according to the hole of the third prior art processing method made; And

The metal die that Figure 10 draws and adopted in another kind of prior art vibration fine finishining and perforation method.

Now, will one embodiment of the present of invention be described with reference to accompanying drawing.Fig. 1 a kind of main body of vibrating fine finishining and processing unit of drawing.The perforation hydraulic cylinder 2 of as shown in Figure 1, can reciprocating motion one and/or can vibrate installs on the framework 1 of main body.A metal die connecting plate 4 is connected to the lower end of perforation hydraulic cylinder rod 3.A press cylinder 5 is contained in the metal die connecting plate 4.As can being seen by Fig. 2, the bar of press cylinder 5 is connected on the pressing means of doing to be integral with increased pressure board 22a 22.A upper mold 6 is connected on the metal die connecting plate 4.Lower mold 7 is connected on the underframe 8 of main body.Hydraulic oil is flowed to perforation hydraulic cylinder 2 by hydraulic power supply through hydraulic valve 9, and hydraulic valve and hydraulic power supply are all not shown.A position transducer 10 that is used for surveying the position of metal die connecting plate 4 is connected on the upper frame 1 of main body.

Fig. 2 is near the key diagram of the part the metal die shown in Figure 1.Referring to Fig. 2, a processed plate 15 is inserted into and increased pressure board 22a and lower mold 7 that pressing means 22 (it can by means of 5 pairs of plates pressurizations of press cylinder) fuses between.In increased pressure board 22a and lower mold 7, have pressing mold hole 24 and 25, the through hole on they are respectively vertically.A punch 26 is connected on the upper mold 6 that is installed on the metal die connecting plate 4.Punch 26 can be assembled in the pressing mold hole 24 and 25 in increased pressure board 22a and the lower mold 7, and slides in the pressing mold hole, leaves little gap between them.In addition, can penetrate punch 26 in the plate 15 along pressing mold hole 24 and 25 with metal die connecting plate 4 (upper mold 6 is connected on this plate) by perforation hydraulic cylinder 2.

Fig. 3 is the schematic block diagram of hydraulic control circuit of the vibration precise machining device of Fig. 1.Control valve 9 is by the control signal control of control valve amplifier 11.Control valve amplifier 11 couples together by perforation hydraulic cylinder 2 output elementary instruction signal 14 (sending the instruction of several hertz to tens hertz sine wave and the desired feed quantity that advances for a short time) with punch 26.The position signalling of amount of movement that is used for detecting perforation hydraulic cylinder rod 3 from position transducer 10 is imported in the position transducer amplifier 13.Simultaneously, also position signalling is exported to control valve amplifier 11 as feedback signal.Like this, control valve amplifier 11 carries out the voltage/current conversion, make that the error signal between command signal and the feedback signal becomes zero, and output is given control valve 9 as an electric current of control signal.Therefore, hydraulic cylinder rod 3 and metal die connecting plate 4 always are controlled, according to the command signal motion from instruction signal generator 12.In addition, the press cylinder 5 that is connected to the lower end of hydraulic cylinder rod 3 is subjected to 27 controls of a directional control valve, makes it upwards to mention to 15 pressurizations of the plate on the bed die 7 with by this plate.Institute's applied pressure is subjected to the control of ratio electromagnetic pressure control valve 28, and this control is based on from the Control current of ratio electromagnetic pressure control amplifier 29.

Operation according to vibration precise machining device of the present invention will be described below.When handle is inserted into a processed plate 15 between increased pressure board 22a and the lower mold 7, and when pressing means 22 pressurizes by means of 5 pairs of lower molds of press cylinder 7, punch 26 is applied the elementary instruction signal that is shown in Fig. 4, its amplitude is tens microns to several millimeters, frequency is several hertz to tens hertz, and punch 26 is fallen.Like this, the pressing mold hole 24 of making the upper mold 6 that is integral and punch 26 pressurized plate 22a with metal die connecting plate 4 is guiding and is being inserted in the plate 15, thereby is passed by plate 15.Punch is further fallen the pressing mold hole 25 that reaches lower mold up to punch.Like this, be subjected to the vibration of commands for controlling to make that repeatedly the amplitude of carrying out is tens microns to several millimeters, frequency is several hertz to tens hertz perforation action.In case punch is lowered to lower mold, just punch 26 is mentioned, do not make its vibration simultaneously, extract out by in up to punch fully by plate 15, still plate 15 is exerted pressure simultaneously.At this moment, produce to be referred to as to shear and leave over or convex ridge, specifically, exactly since plate 15 return action caused at the formed outwards outstanding convex ridge of a part of the inner surface of plate mesopore.Leave over or convex ridge in order to remove this shearing, punch 26 is inserted in the hole in the plate 15 again, once more punch 26 is applied vibration simultaneously.Like this, the shearing of the inner surface of plate 15 mesopores is left over or convex ridge partly is removed.Subsequently, the perforation hydraulic cylinder is upwards mentioned once more, finish a puncture cycle.

At this moment, because press cylinder 5 pressurizes to plate 15 by increased pressure board 22a all the time in above-mentioned perforation procedure,, cause a horizontal pressure that is applied on the punch 26 that pierces in the plate 15 so plate institute applied pressure is produced internal stress in plate 15.In addition, after punch was extracted out by the hole, the pressure of pressing means caused the inner surface of plate mesopore forcibly to produce the convex ridge part.Because the main body side of press cylinder 5 is connected with metal die connecting plate 4, so hydraulic cylinder 5 along with the motion of the hydraulic cylinder 2 of boring a hole is moved together, and is subjected to the external force that motion caused of hydraulic cylinder 2.Yet because the thickness of plate 15 is little, the stroke of perforation hydraulic cylinder is also little, so pressure-control valve 28 can be controlled to a constant value to pressure, makes and can pressurize to plate with a normal pressure.In addition, perforation hydraulic cylinder 2 is upwards mentioned press cylinder 5 with metal die connecting plate 4 or is fallen, even when press cylinder 5 moves a little stroke, whole stroke still can increase.Therefore, can be connected to plate 15 on the pressing mold or at an easy rate and throw off by pressing mold.

More particularly, even after plate was perforated, punch 26 still can reciprocally move up and down, make and to carry out meticulous processing to the inner surface in hole.The residue of perforation is discharged by pressing mold hole 25.Though in being shown in the foregoing description of Fig. 4, vibration and perforation action are to carry out twice, yet, being construed as and can repeating more times, this depends on the shape in hole or the material of plate.As shown in Figure 5, after a vibration and perforation actuation cycle, reciprocating motion that can repeat circuit hydraulic cylinder 2, and do not apply vibration, 22 pairs of plates of pressing means, 15 pressurizations simultaneously.It is more effective that the inner surface that this method is compared to the hole for the purpose of the part of the convex ridge on the inner surface that reduces the hole carries out accurately machined purpose.

In addition, position at press cylinder 5, shown in the dotted line among Fig. 2, adopt an elastic component (such as polyurethane, spring etc.) and a regulating part of the unillustrated elastic force that can regulate this elastic component as making the part that is integral with the longitudinal supporting spare 22 ' of pressing means 22, make increased pressure board 22a flexibly be supported by metal die connecting plate 4.In this case, pressure is owing to the motion of perforation hydraulic cylinder 2 changes.Yet if the thickness of plate 15 is little, pressure will not have big variation.Therefore, elastic component 5 ' means and can adopt than above-mentioned press cylinder 5 simple structures.

Though in the above-described embodiments, the description of being done is about a punch 26, yet, shown in the dotted line among Fig. 2, can adopt a plurality of punch 26 '.Therefore, should admit, can make multiple remodeling and variation, and not depart from purpose of the present invention.

Fig. 6 illustrates a table of the various experimental results of explanation, these results are when boring a hole with the above-mentioned perforation press that is shown in Fig. 1 and that the hole is added man-hour is resulting under various conditions, what make comparisons mutually is: with the single once perforated technology (A of the prior art of a side perforation press, B), double piercing technology (C with the prior art of a side perforation press, D), a kind of experimental vibration finishing method (E) (this method does not adopt press cylinder 5 by increased pressure board 22a plate 15 to be pressurizeed in perforation procedure), and vibration finishing method of the present invention (F).In every kind of method for punching, all exist or the experiment of the perforation when not having increased pressure board.Under situation of the present invention, increased pressure board is added in the vibration finishing method, as illustrated among the F.In Fig. 6, be to carry out to the measurement of the convex ridge of the inner surface in hole in that part of surface of Fig. 6 mesopore configuration 31 representatives, rise is 32 represented that part of definite, and the surface roughness Ra in hole is in 33 represented that part of measurements.

As can according to the process for stamping of prior art, formed convex ridge part or ledge, and surface roughness being poor by Fig. 6 finding, Ra is not less than 60 microns.On the contrary, according to the present invention, as shown in F, can not form convex ridge part or ledge, and the inner surface in hole is better than other result significantly, surface roughness is good, and Ra reaches 30 microns.Institute particularly is as can be by the finding as a result of E, even in vibration perforation processing method, when not having increased pressure board of the present invention, also can form the convex ridge part.Resulting experimental result is compared with F result of the present invention among the method E, forms convex ridge and surface roughness two aspects on the inner surface in hole, all is poor.Therefore, can not reach purpose of the present invention according to the method that E adopted, and this purpose guarantees that the present invention is fabulous.

In the perforation and processing method of above-mentioned prior art, when thickness surpassed about 1.6 millimeters printed substrate processing through hole, the short column that is used as punch is often curved to be turned round.Therefore, in prior art, the diameter of short column is restricted to greater than about 0.8 millimeter.In addition, because crackle is caused on the surface between the hole easily, so even be heated when the hole of plate, the interval of through hole also is restricted to 2 millimeters.Yet,, when the hole of plate is not heated, under operating condition shown in Figure 4, can be spaced apart 1.5 millimeters through hole with the short column making and the processing of 0.5 millimeter of diameter, and can produce bending and crackle according to the present invention.Also have, in the present invention, can carry out the processing of through hole with the piercing force of about 20 ton forces, this is 2/3 times of piercing force conventional under typical temperature.2/3 times the piercing force that therefore, can only need conventional press.In addition, because big active force is not to be applied on the plate instantaneously, break so can significantly reduce to produce in vibration precise machining device and parts thereof, tired and improper, this makes vibration finishing method of the present invention and device that other benefit be arranged.

Claims (7)

1. a kind of vibration finishing method in the side perforation decompressor, wherein can be mounted in it synthetic material on the pressing mold that has the pressing mold hole as printed substrate one class, and be provided with a punch, it can penetrate described synthetic material, be inserted in the described pressing mold hole, described method comprises the steps:

Described synthetic material is fixed on the pressing mold, and is provided with a pressing means, be used for described synthetic material pressurization;

With punch described synthetic material is bored a hole, with described pressing means described synthetic material is pressurizeed artificially simultaneously, and punch is applied tens hertz microvibration;

Subsequently, extracting out in the hole that is processed of described punch by described synthetic material, with described pressing means described synthetic material is pressurizeed artificially simultaneously; And

Punch is inserted once more in the hole that is processed of described synthetic material, once more described synthetic material is pressurizeed artificially simultaneously, and described punch is not applied vibration or applies described tens hertz microvibration.

2. according to a kind of vibration finishing method of claim 1, it is characterized in that the operation that described punch is extracted out and inserted is repeated repeatedly.

3. according to a kind of vibration finishing method of claim 1 or 2, even it is characterized in that after described perforation procedure, still punch is applied tens hertz microvibration, make the hole processed inner surface since punch with the mutual slip of the inner surface in the hole that is processed by fine finishining.

4. a kind of vibration precise machining device in the side perforation decompressor, wherein can be mounted in it synthetic material on the pressing mold that has the pressing mold hole as printed substrate one class, and being provided with a punch, it can penetrate described synthetic material, is inserted in the described pressing mold hole; Wherein described synthetic material is fixed on the pressing mold, and is provided with a pressing means that is used for to described synthetic material pressurization, described punch can do to comprise perforation and/or vibration, and the action of extracting out, and irrelevant with pressing means.

5. according to a kind of vibration precise machining device of claim 4, it is characterized in that described punch can be assembled in the described pressing means, and slide therein, be provided with little gap between them.

6. according to a kind of vibration precise machining device of claim 4 or 5, it is characterized in that described pressing means comprises an increased pressure board and a metal die connecting plate (upper mold that has described punch is connected the top of it) that is pressed against on the described synthetic material, and between described increased pressure board and described metal die connecting plate, a hydraulic cylinder that adjustable pressure can be provided is arranged.

7. according to a kind of vibration precise machining device of claim 4 or 5, it is characterized in that the described pressing means that is provided with has increased pressure board and the metal die connecting plate (upper mold that has described punch is connected the top of it) that is pressed against on the described synthetic material, and as polyurethane, an elastic component of spring and so on and a regulating part can regulating the elastic force of described elastic component are clipped between described pressing means and the described metal die connecting plate.

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