CN101357408B - Workpiece cutting method and band-saw machine - Google Patents
Workpiece cutting method and band-saw machine Download PDFInfo
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- CN101357408B CN101357408B CN200810131097.4A CN200810131097A CN101357408B CN 101357408 B CN101357408 B CN 101357408B CN 200810131097 A CN200810131097 A CN 200810131097A CN 101357408 B CN101357408 B CN 101357408B
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Abstract
The invention relates to a workpiece cutting method utilizing a band-saw machine with an endless band-saw blade and a band-saw machine used in the method. The band-saw machine has a plurality of band-saw blade guides that guide tooth tips on the band-saw blade toward a workpiece to be cut, one of the band-saw blade guides being movable in a direction towards and away from at least one other band-saw blade guide; and vibration applying units provided on the plurality of band-saw blade guides to apply vibrations to the band-saw blade in a cutting direction with respect to the workpiece, wherein the respective vibration applying units are coupled to each other via a power transmission unit.
Description
The application submits on July 25th, 2005, and application number is 200580031481.1, the divisional application of the patent application that name is called " cutting-off method of workpiece and band sawing machine ".
Technical field
The present invention relates to the band sawing machine utilizing and there is the cutting-off method of the workpiece of the band sawing machine of ring-type band saw edge and this cutting-off method and use, in more detail, relate to and vibration is applied to the incision direction of band saw edge opposite piece carry out the cutting-off method of the cut-out of workpiece and there is the band sawing machine of the vibration bringing device for applying above-mentioned vibration.
Background technology
Band sawing machine has horizontal band sawing machine and vertical band sawing machine, and the both ends of the saw sword of band shape are engaged by welding and form ring-type by the band saw edge that above-mentioned band sawing machine uses.The cut-out using this ring-type band saw edge to carry out workpiece adds man-hour, for carrying out the cut-out of the short workpiece of length of cut, developing to swing and cutting off.Such as, disclosed in No. 56-107825, the JP of Japanese Patent Publication content.
It is in such as horizontal band sawing machine that above-mentioned swing is cut off, make band saw edge be alternately inclined to state to the right and left below state to carry out the cutting of workpiece.That is, the saw sword frame with band saw edge by alternately repeating to the right lentamente or the inclination of below left, thus make band saw edge to the right or left inclined downward to carry out the cut-out processing of workpiece.Also developed when carrying out above-mentioned swing and cutting off, the guide roller had by making the band saw edge guider of the guiding of carrying out band saw edge moves the structure making band saw edge to the right or left inclined downward to direction of feed.Such as, disclosed in No. 2003-305613, Japanese Patent Publication JP content.
Have again, also developed following technology: the structure of band saw edge made when carrying out swing as above and cutting off, the fluctuating of waveform shape is formed at the back of band saw edge, time in the band saw edge guider part that the peak portion of above-mentioned fluctuating is positioned at a side, the valley risen and fallen is positioned in the band saw edge guider part of the opposing party, make band saw edge to the right or left inclined downward cut off to the swing carrying out workpiece.Such as, disclosed in the Unexamined Patent 9-300131 publication of Japanese Patent Publication content.
But, usually, use milling cutter to carry out cutting processing to band saw edge being best suited in mass-produced gear cutting machine.Therefore, the bandwidth accuracy of band saw edge (extent of deviation of value when carrying out large quantitative determination to the distance at the back side from the tip of tooth top to band saw edge be processed to form by cutting) is though by decisions such as the precision of gear cutting machine and the precision of milling cutter, but the bandwidth accuracy of the band saw edge obtained by this processing, even if the deviation also producing 0.03-0.05mm in good situation.
Though be formed on a band saw edge hundreds of more than tooth top, here, the depth of cut of each tooth of band saw edge is considered in examination.When setting the workpiece height of direction of feed as Hmm, the tooth top of band saw edge be spaced apart Pmm, the rotary speed (saw speed) of band saw edge is Vm/min, and when break time is tmin, the depth of cut amm of each tooth above-mentioned can represent with following formula.
a＝(H×P)/(1000×v×t)mm
Below, in order to carry out concrete calculating, according to the applicant of the application, this day national juristic person, Amada Co., Ltd in 2000 publish blade (band saw edge) catalogue described in machining condition table, therefrom select typical sample and calculate.
1. S45C (JIS) φ 100, the interval P of the tooth top of band saw edge is 7.3mm.
The rotary speed V:48-72m/min of band saw edge
Break time t:1.5-2.2min
The minimum of a value of the depth of cut a of each tooth under this condition is:
(100×7.3)/(1000×72×2.2)＝0.0046mm
Its maximum is: (100 × 7.3)/(1000 × 48 × 1.5)=0.0101mm
2. SUS304 (JIS) φ 500, the interval P of the tooth top of band saw edge is 19.5mm.
The rotary speed V:17-26m/min of band saw edge
Break time t:90-168min
The minimum of a value of the depth of cut a of each tooth under this condition is:
(500×19.5)/(1000×26×168)＝0.0022mm
Its maximum is: (500 × 19.5)/(1000 × 17 × 90)=0.0064mm
As indicated above, usually, the average depth of cut of each tooth of band saw edge is less than 0.001.
But, as mentioned above, even if the bandwidth accuracy of band saw edge also has the deviation of 0.03mm mono-0.05mm in good situation.That is, the depth of cut of each tooth is also little by more than 1/3rd compared with bandwidth accuracy, if cut with this state, Problems existing is: the tooth only having bandwidth ratio wider in bandwidth deviation plays shear action, instead of all teeth all work.
In addition, can also infer easily, also exist and do not produce chip and the tooth of the movement that only rubs with cutting face.Can think, the tooth being perhaps exactly these limit friction limit movements creates undesirable noise and a large amount of heat.
Summary of the invention
The present invention proposes to solve problem as above, the object of this invention is to provide and a kind ofly all workpiece to be cut by controlling band saw edge whole teeth of making it corresponding with workpiece, thus the band sawing machine that the cutting-off method that cuts and this cutting-off method use can be carried out efficiently.
To achieve these goals, according to band sawing machine of the present invention, possesses the band saw edge of ring-type, it is characterized in that, there is the workpiece direction multiple band saw edge guiders of guiding that the tooth top of above-mentioned band saw edge are pointed to will cut off, be arranged to make another band saw edge guider to relative to a band saw edge guider close to away from direction move, in above-mentioned multiple band saw edge guider, possess for applying the vibration bringing device of above-mentioned band saw edge to the vibration of the feed side of workpiece respectively, above-mentioned each vibration bringing device links linkage by power transmission.
In addition, band sawing machine of the present invention, on the base 3 of vise assembly 5 possessing fixation workpiece W, move up and down on guiding crossbeam 14 that saw sword frame 9 that equipment freely possesses band saw edge 7 possesses at above-mentioned saw sword frame 9, support and possess multiple leading arm 13A, 15A, the plurality of leading arm 13A, 15A possesses the band saw edge guider 13 of the above-mentioned band saw edge 7 that leads in bottom, 15, and be arranged to can by another leading arm 15A to relative to a leading arm 13A close to away from direction adjusting position, move up and down to possess freely and support holding member 77, this support holding member 77 is at above-mentioned band saw edge guider 13, the supporting member at the back pushing above-mentioned band saw edge 7 is possessed in 15, it is characterized in that, at above-mentioned each leading arm 13A, 15A moves up and down respectively the pushing stalk 75 possessing freely and make bottom abut above-mentioned support holding member 77, rotatably possesses the motor 57 that possessed by above-mentioned saw sword frame 9 and the rotating shaft 55 that rotates and possess on above-mentioned rotating shaft 55 through a pushing stalk 75 and above-mentioned supported the cam 59 that holding member 77 pushes in downward direction, the splined sleeve 63 that top at an above-mentioned leading arm 15A is rotatably the supported splined shaft 55s that possesses to above-mentioned rotating shaft 55 of spline fitted and arranging slidably, and possess on above-mentioned splined sleeve 63 through another pushing stalk 75 and another supported the cam 65 that holding member 77 pushes in downward direction, become by the rotation of above-mentioned motor 57 and make the formation that the support holding member 77 of both sides moves up and down.
Therefore, according to the present invention, owing to being to be applied with to band saw edge the vibration of the direction of feed of workpiece band saw edge to carry out the cut-out of workpiece, thus, for band saw edge, the whole teeth corresponding with workpiece are all in the state of cutting workpiece, can carry out high efficiency cutting.
In addition, owing to chip being split very short, while raising chip discharge, the heating that caused and heat radiation are alternately repeated, thus, be easy to prevent band saw edge and workpiece from reaching a high temperature by cutting resistance.Therefore, the life-span of band saw edge can be improved.
Accompanying drawing explanation
Fig. 1 be the general structure of the horizontal band sawing machine of the example represented as band sawing machine face key diagram.
Fig. 2 (A) and Fig. 2 (B) represents to illustrate that the band saw edge had band sawing machine applies the key diagram of the structure of the vibration of direction of feed and the action of saw sword.
Fig. 3 (A) and Fig. 3 (B) represents to illustrate that the band saw edge had band sawing machine applies the key diagram of the structure of the vibration of direction of feed and the action of saw sword.
Fig. 4 (A)-Fig. 4 (C) is the key diagram of the various structures of the vibration represented for applying direction of feed to band saw edge.
Fig. 5 (A) and Fig. 5 (B) is the key diagram of the structure of the vibration represented for applying direction of feed to band saw edge.
Fig. 6 (A) and Fig. 6 (B) is the key diagram of the structure of the vibration represented for applying direction of feed to band saw edge.
Fig. 7 (A)-Fig. 7 (D) is the key diagram of the structure of the vibration represented for applying direction of feed to band saw edge.
Fig. 8 is the key diagram of the structure of the vibration represented for applying direction of feed to band saw edge.
Fig. 9 is the key diagram of the structure of the vibration represented for applying direction of feed to band saw edge.
Figure 10 is the key diagram of the structure of the other mode of the vibration represented for applying direction of feed to band saw edge.
Figure 11 is the side-looking key diagram of the major part for the vibration to band saw edge applying direction of feed.
Figure 12 is the key diagram of the structure of the other mode of the vibration represented for applying direction of feed to band saw edge.
Detailed description of the invention
Below, according to Fig. 1-Figure 12, preferred forms of the present invention is described.
First, with reference to Fig. 1, band sawing machine has base 3, and this base 3 is equipped with the vise assembly 5 can fixing the workpiece W that will cut off.In addition, above-mentioned base 3 is also equipped with the saw sword frame 9 possessing ring-type band saw edge 7 also can make saw sword frame 9 opposite piece 7 move to the direction be close to each other or away, meanwhile, the driver 11 of the suitable feed moving effect as hydraulic cylinder etc. for mobile above-mentioned saw sword frame 9 above-mentioned base 3 is also equipped with.Further, leading arm 13A, the 15A in its leading section (bottom) with band saw edge guider 13,15 be equipped with above-mentioned saw sword frame 9; This guider 13,15 is for leading the direction of the tooth top of above-mentioned band saw edge 7 towards workpiece W.As everyone knows, above-mentioned leading arm 13A, 15A are supported on the guiding crossbeam 14 that above-mentioned saw sword frame 9 has, the leading arm 13A of one side is fixed on guiding crossbeam 14, and the leading arm 15A of the opposing party is arranged to its position and can regulates to the direction be toward or away from it relative to above-mentioned leading arm 13A according to the size of workpiece W.In addition, the structure due to this band sawing machine is known, and thus, the more detailed description for band sawing machine is omitted.
In the band sawing machine 1 of structure described above, when making band saw edge 7 be in the state left with workpiece when the action due to driver 11, move it by carrying out driving to band saw edge 7, and by the action of above-mentioned driver 11, saw sword frame 9 is moved to the direction of feed of band saw edge 7 couples of workpiece W, band saw edge 7 couples of workpiece W just can be utilized to cut off.
Carrying out band saw edge 7 driving as above moving it, and when making band saw edge 7 carry out the cut-out of workpiece W to carrying out the direction relative movement of feed to workpiece W, band saw edge 7 utilizes band saw edge guider 13,15 lead and be supported in the two sides of workpiece W.Therefore, band saw edge 7 is between above-mentioned band saw edge guider 13,15, and the elastic deformation due to the effect of the counter-force of the cutting resistance of workpiece W is also in the state of slight curvature.Further, when making each sawtooth of band saw edge 7 have some differences of height because of manufacture deviation etc., sometimes also exist wherein the inoperative sawtooth of the cutting of workpiece W.
Therefore, in the present embodiment, the part of above-mentioned band saw edge guider 13,15 has vibration bringing device, make and utilize this vibration bringing device to band saw edge 7 to the structure direction of feed of workpiece W being applied to vibration.In more detail, above-mentioned band saw edge guider 13,15 is identical with existing general band saw edge guider, while the mid portion of sandwich band saw edge 7, make the back contact of itself and band saw edge 7 and support this back, and band saw edge 7 is led the direction making its tooth top point to workpiece W; On this band saw edge guider 13,15, as Fig. 2 (A) and Fig. 2 (B) schematically, roughly shown in, have and utilize rotation driver 17A, 17B of motor and so on to drive rotary body 19A, the 19B of (rotation).
The back contact of above-mentioned rotary body 19A, 19B and band saw edge also rotates, make that roughly equidistantly there is the recess (part less apart from the radius of pivot, in other words, the part that distance from pivot to the contact point with band saw edge 7 is less) 21A, 21B and the protuberance (part that the radius apart from pivot is larger, in other words, from pivot to the part that the distance of the contact point with band saw edge 7 is larger) non-circular shape of 23A, 23B.
Therefore, as shown in Fig. 2 (A), when recess 21A, 21B of each rotary body 19A, 19B are in the state relative with the back of band saw edge 7, and when band saw edge 7 such as moves horizontally and cuts workpiece W in this condition, make above-mentioned rotation driver 17A, 17B make synchronous rotary; When protuberance 23A, 23B of above-mentioned rotary body 19A, 19B are in the state relative with the back of band saw edge 7, then by protuberance 23A, 23B of rotary body 19A, 19B, the direction of feed of band saw edge 7 to band saw edge is pushed.Therefore, band saw edge 7 just carries out feed energetically to workpiece W.(with reference to Fig. 2 (B)).
Further, when protuberance 23A, 23B of above-mentioned rotary body 19A, 19B all touch the back of band saw edge 7, then band saw edge 7 moves horizontally again, as shown in Fig. 3 (A), utilizes each tooth of above-mentioned band saw edge 7 to cut workpiece W.At this moment, heat is produced due to cutting resistance.
Then, when above-mentioned rotary body 19A, 19B further rotate and become state shown in Fig. 3 (B), recess 21A, 21B of rotary body 19A, 19B are again relative with the back of band saw edge 7.At this moment, be in temporary transient d/d state to the pushing of band saw edge 7, band saw edge 7 moves a bit to the direction leaving workpiece W (with reference to Fig. 3 (B)).Further, when being in the state shown in Fig. 3 (B), in other words, when band saw edge 7 moves a little to the direction leaving workpiece W, itself and workpiece W are peeled off, so above-mentioned chip strips down from above-mentioned workpiece W to the chip generation effect that machining is formed.
Under state shown in from the state shown in Fig. 3 (B) to Fig. 2 (A), because cutting resistance is lower, inhibits the generation of heat and dispel the heat, thus, band saw edge 7 and workpiece W can be avoided to reach a high temperature.
As mentioned above, according to band sawing machine of the present invention, if make above-mentioned rotary body 19A, 19B synchronous rotary, due to rotary body 19A, 19B recess 21A, 21B and protuberance 23A, 23B alternately with the back of band saw edge 7 relatively and contact, thus, band saw edge 7 just produces vibration on the direction of feed to workpiece W.Therefore, relative movement is done to the direction of feed of workpiece W at saw sword frame 9, when utilizing band saw edge 7 to carry out feed action, vibrate at direction of feed by making above-mentioned band saw edge 7, thus the feed action that the mode of impacting carries out band saw edge 7 couples of workpiece W can be carried out repeatedly, and band saw edge 7 is promptly moved a little to the direction leaving workpiece W.
Therefore, when utilizing above-mentioned rotary body 19A, 19B that band saw edge 7 is mobile to the pushing of workpiece W direction, the whole sawtooth 7Ts relative with workpiece W are in the state to workpiece W feed, can effectively carry out the feed of workpiece W, thus effectively can carry out cut-out processing.In addition, when making band saw edge move a little to the direction leaving workpiece W, to the chip generation effect that machining is formed, itself and workpiece W being peeled off, because above-mentioned chip strips down from above-mentioned workpiece W, just decreasing cutting resistance.Therefore, make chip cracked very short, while improving the discharge of chip, be easy to suppress the heating that caused by cutting resistance.Therefore, the life-span of band saw edge 7 can be improved.
In addition, in the above description, explanation is the situation that recess 21A, 21B of rotary body 19A, 19B or protuberance 23A, 23B carry out facing to the back of band saw edge 7 pushing simultaneously.But the protuberance of the recess and another rotary body that also can make a rotary body in rotary body 19A, 19B is simultaneously facing to the structure at the back of band saw edge 7.That is, the phase place of rotary body 19A, 19B of left and right also can be made differently to carry out rotating or the revolution of rotary body 19A, 19B of left and right differently rotates.Even if in this case, also can apply the vibration of direction of feed to band saw edge 7, effect as above can be obtained equally.
But the amplitude of the vibration of the direction of feed to workpiece W of above-mentioned band saw edge 7, considers the bandwidth accuracy of the manufacture deviation of band saw edge 7, be preferably about 0.03mm-0.05mm.Namely, add man-hour carrying out cut-out with band saw edge 7 couples of workpiece W, vibration is produced at direction of feed owing to making band saw edge 7, although the sawtooth 7T of band saw edge 7 effectively can be carried out to the feed of workpiece W, but when the depth of cut is excessive, the load of sawtooth 7T increases, and difference according to circumstances sometimes hypodontia occurs.Therefore, in order to substantially make whole sawtooth 7T cut off workpiece W, preferably vibrate with the amplitude of the extent of deviation that can compensate bandwidth accuracy.
Further, although also different with the size of the translational speed of band saw edge 7 as the frequency of the vibration to the favourable direction of feed of band saw edge 7, several Hz-hundreds of Hz is preferably.That is, frequency is higher, and the number of repetition of each sawtooth 7T to the feed of workpiece W is more, and the length of cut of each tooth to workpiece W of band saw edge 7 is shorter.Therefore, the chip produced is shorter and discharge property improves.But to workpiece W, sawtooth 7T occurs that the feed impacted and the number of repetition acting on large load because of cutting resistance also increase.Therefore, if consider the service life reduction that the repetition load because of each sawtooth 7T effect to band saw edge 7 causes, frequency is preferably within the scope of several Hz-hundreds of Hz.Further, structure for band saw edge 7 is soldering carbide chip and so on tooth top, and owing to increasing frequency, the effect due to impact load is promoted coming off of carbide chip, this situation is undesirable.
When the translational speed of above-mentioned band saw edge 7 with when being in certain relation in the relation of the vibration number of direction of feed, as shown in Fig. 2 (A), Fig. 2 (B) and Fig. 3 (A), Fig. 3 (B), the sawtooth 7T that band saw edge 7 has is mobile T amount of separation about only sawtooth 7 often, then repeat the feed that band saw edge vibrates the band of workpiece W, then length of chip is substantially equal with the length of the spacing of sawtooth 7T.That is, compared by length of chip during the general cutting that the direction of feed of length of chip during vibrocutting and band saw edge 7 couples of workpiece W does not apply to vibrate, its length becomes extremely short.This improves the discharge of chip.
In addition, owing to being carried out the feed of sawtooth 7T to workpiece W by the direction of feed applying vibration at band saw edge 7, thus, as shown in Fig. 2 (B), Fig. 3 (A), each sawtooth 7T improves the nipping property of workpiece W, even easily produce the occasion of the workpiece of work hardening, also can the downside of machining hardened layer, can easily cut.
But, as the structure of vibration band saw edge 7 being applied to direction of feed, both can as shown in Fig. 4 (A), the shape of rotary body 19A, 19B is made polygon, also as shown in Fig. 4 (B), Fig. 4 (C), above-mentioned rotary body 19A, 19B can be made eccentric cam or the eccentric roller of suitable shape.That is, when the rotary body utilizing driver to rotate 19A, 19B are made non-circular shape, various shape can be adopted.In addition, also can the shape of a pair rotary body 19A, 19B be made different.
In addition, as shown in Figure 5, on the swing arm 27 swinging freely centered by pivot 25 had in band saw edge guider 13,15, be provided with and rotatably also limit the backing roll 29 to the movement of side, back with the back contact of band saw edge 7, also can make and non-circular rotary body 19 is contacted and the structure rotated with backing roll 29.Adopting this structure, by utilizing driver 17 to make rotary body 19 rotate, just indirectly can apply the vibration of direction of feed through backing roll 29 pairs of band saw edges 7.
Further, as shown in Fig. 6 (A), the length of one end of swing arm 27 also can be lengthened, make the structure that the rotary body 19 utilizing driver to rotate is set on this swing arm 27.At this moment, as shown in Fig. 6 (B), the structure with the swing arm 27 replacing backing roll 29 with supporting slice 31 also can be made.
In addition, as shown in Fig. 7 (A), also can make, in one end of swing arm 27, there is backing roll 29, there is at the other end structure of the rotary body 19 utilizing driver to rotate.Further, as shown in Fig. 7 (B), the structure at the two ends of swing arm 27 with rotary body 19 also can be made.At this moment, as shown in Fig. 7 (C), the diameter of two rotary bodies 19 also can be different.Further, as shown in Fig. 7 (D), also can make on backing roll 29 around the structure of belt 33 hanging with the protuberance on outer peripheral face with appropriate intervals.
That is, as the structure utilizing the rotary body that rotated by driver drives band saw edge 7 to be applied to the vibration of direction of feed, various structure can be adopted.
As the structure of the vibration to band saw edge applying direction of feed, structure as shown in Figure 8 can also be adopted.Namely, in the guider of band saw edge, clamp band saw edge 7 from both sides and carry out of a pair guide roller 35A, the 35B led, arrange with the back contact of band saw edge 7 and support its flange part 35F, this flange part 35F makes at the back contact with band saw edge 7 and the part supporting it arranges the protuberance 35P with appropriate intervals.Adopt this structure, the back of band saw edge 7 is then in when being supported by above-mentioned protuberance 35P at every turn the state be urged downwardly.Thus, the vibration of direction of feed can be applied to band saw edge 7.
In addition, as another kind, band saw edge 7 is applied to the structure of the vibration of direction of feed, as shown in Figure 9, also following structure can be made, that is: there is in the part of the guider 13,15 of band saw edge the suitable driver 37 of such as solenoid, minitype cylinder and so on, utilize the free reciprocating working beam 39 of the work be contained on this driver 37 or utilize the impact component 41 being contained in the leading section of above-mentioned working beam 39 to clash into the back of band saw edge 7 directly or indirectly.
Adopting said structure, while can at random changing the work period of driver 37, by controlling its power, just can control the bite force of the sawtooth of band saw edge 7 couples of workpiece W.Further, the path increment by controlling above-mentioned working beam 39, the amplitude of the vibration to the direction of feed that band saw edge 7 applies can also be controlled.Therefore, adopt said structure, can correspondingly control the vibration number of the direction of feed of band saw edge 7, amplitude and band saw edge to the feed force (vibration force) of workpiece with the material of the workpiece that will cut off, shape, size etc.
Known by illustrating as above, in a word, in present embodiment mode, owing to keeping band saw edge 7 and leading thus make the tooth top of band saw edge 7 point to the band saw edge guider 13 in workpiece direction, vibration bringing device is set on 15, or near above-mentioned band saw edge guider 13, 15 arrange vibration bringing device, and utilize this vibration bringing device to apply band saw edge to the vibration of the direction of feed of workpiece W to carry out the cut-out of workpiece W to band saw edge 7, thus, even if when there are some differences of height in the sawtooth 7T of band saw edge 7, also whole sawtooth 7T of band saw edge 7 can be made to cut off workpiece W, can cut off efficiently.
Have again, band saw edge 7 is made to produce vibration at direction of feed as described above, owing to improve the nip performance of sawtooth to workpiece, thus, even easily produce the occasion of the workpiece of work hardening, also can cut off well, simultaneously, the length of the chip produced during cutting workpiece can be made to shorten, the discharge of chip can be improved.
In addition, the present invention is not limited to embodiment as above, by carrying out suitable change, also can implement in another manner.That is, in the above description, although explanation is utilize to rotate as rotation driver 17A, the 17B such as motor come driving rotating bodies 19A, 19B, also can omits rotation driver, and make the follower structure rotated along with the rotation of band saw edge 7.
Figure 10 also illustrates another embodiment mode.Preferably in mode, on the top of a leading arm 13A, the gear-box 53 installed by bracket 51 rotatably carries rotating shaft 55.This rotating shaft 55 utilizes the motor 57 be contained on gear-box 53 to rotate.In addition, the bevel gear mechanism, worm and worm gear etc. be contained in gear-box 53 that pass through from motor 57 to the rotation of rotating shaft 55 carries out.
The cam 59 of the suitable shape of such as polygon and so on is installed integratedly in an end of above-mentioned rotating shaft 55, has in the other end of rotating shaft 55 with above-mentioned guiding crossbeam 14 abreast to the splined shaft 55S of another leading arm 15A side horizontal-extending.This splined shaft 55S axially can realize spline fitted with the splined sleeve 63 that only can be rotatably supported on the bearing 61 being contained in above-mentioned leading arm 15A top relative sliding.In the side, end of this splined sleeve 63, the cam 65 identical with above-mentioned cam 59 is installed.
Further, be provided with bracket 67 (with reference to Figure 11) on the top of above-mentioned leading arm 13A, 15A with above-mentioned cam 59,65 accordingly, this bracket 67 is support by pivot 69 swing arm 71 respectively that swing in the vertical direction freely.Above-mentioned each swing arm 71 is rotatably equipped with cam follower 73 respectively that pushed downwards by above-mentioned each cam 59,65.Further, the upper end that can be supported on the push strut 75 on above-mentioned each leading arm 13A, 15A up and down contacts with the lower surface of the front of above-mentioned each swing arm 71.
The bottom of above-mentioned each push strut 75 contacts with the supporting holding member 77 be contained on above-mentioned band saw edge guider 13,15.That is, on above-mentioned band saw edge guider 13,15, same with general band saw edge guider, there is the clamping guiding parts 79 for leading from sandwich band saw edge 7 and to it.And, by pivot 83 can up and down rotatably pivotal support the side, bottom of the above-mentioned supporting holding member 77 of the back pushing pressure part 81 as supporting member or backing roll etc. with the back that can push band saw edge 7, the side, leading section of this supporting holding member 77 contacts with the leading section (bottom) of above-mentioned push strut 75, thus above-mentioned back pushing pressure part 81 is pushed to band saw edge 7 side.
According to said structure, when drive motors 57 rotates, by the above-mentioned axle 55 of an example as power transmission, the cam 59,65 of leading arm 13A, 15A side is rotated respectively simultaneously.Therefore, when utilize above-mentioned cam 59,65 be rotated through cam follower 73 each swing arm 71 is vertically swung time, holding member 77 will be supported with the leading section of each push strut 75 and push to band saw edge 7 direction.Therefore, band saw edge 7 is pushed to the direction of workpiece W feed by back pushing pressure part 81.And, when removing pushing from above-mentioned cam 59,65 (when the recess of cam 59,65 with cam follower 73 to time corresponding, the cutting resistance due to main component (back of the body component) direction makes band saw edge 7 and push strut 75 be in return state.
That is, the cutting of workpiece is carried out in the vibration that also can apply direction of feed to band saw edge 7 with said structure.
In addition, as band saw edge 7 being applied to the structure of band saw edge 7 pairs of workpiece in the vibration of direction of feed, as shown in figure 12, also can make the suitable cam C utilizing and driven the druum cam, edge cam etc. rotated by the motor M be contained on leading arm 13A (15A), make to be contained in the structure supporting the cam follower CF on holding member 77 and move up and down.Further, the structure utilizing the driver AC of hydraulic cylinder or solenoid etc. to make the bearing assembly 85 with backing roll 89 etc. move up and down also can be made.
In addition, as band saw edge 7 being applied to the structure of band saw edge 7 pairs of workpiece in the vibration of direction of feed, also the structure utilizing suitable driver to make the guiding crossbeam 14 of support guide arm 13A, 15A to vibrate at above-below direction (direction of feed of band saw edge 7) can be made, or vibratory drive carried out to the driver 11 of feed moving effect and saw sword frame 9 is vibrated, band saw edge 7 being applied to the structure of the vibration of direction of feed.In addition, also can make, on saw sword frame 9, the motor with eccentric weight is installed, by making this motor rotate, saw sword frame 9 be vibrated, and utilize this vibration to apply the structure of band saw edge 7 pairs of workpiece in the vibration of direction of feed to band saw edge 7.
Namely, as band saw edge 7 being applied to the structure of band saw edge 7 pairs of workpiece in the vibration of direction of feed, structure band saw edge 7 directly being applied to vibration can be adopted, or vibration applies to the structure supporting band saw edge 7 the various structures such as the structure vibrated are applied indirectly to band saw edge.
The invention is not restricted to the explanation as mentioned above to working of an invention mode, by carry out except above-mentioned and except suitable change, can implement in other various mode.
In addition, the full content of No. 2004-217302nd, Japanese Patent application (application on July 26th, 2004) and No. 2005-105112nd, Japanese Patent application (application on March 31st, 2005) is by referring to including in present specification.
Claims (3)
1. a band sawing machine, the base (3) of vise assembly (5) possessing fixation workpiece (W) moves up and down equipment saw sword frame (9) freely, this saw sword frame (9) possesses band saw edge (7), the guiding crossbeam (14) possessed above-mentioned saw sword frame (9) above supports and possesses two leading arm (13A, 15A), these two leading arm (13A, the band saw edge guider (13 of the above-mentioned band saw edge of guiding (7) 15A) is possessed in bottom, 15), and be arranged to can by another leading arm (15A) to relative to a leading arm (13A) close to away from direction adjusting position, at above-mentioned band saw edge guider (13, 15) move up and down to be provided with freely and support holding member (77), this support holding member (77) possesses the supporting member at the back of the above-mentioned band saw edge of pushing (7), it is characterized in that,
At above-mentioned each leading arm (13A, the push strut (75) possessing freely and make bottom abut above-mentioned support holding member (77) is moved up and down respectively 15A), rotatably possesses rotating shaft (55), the motor (57) that this rotating shaft (55) is possessed by above-mentioned saw sword frame (9) and rotating, and the first cam (59) is possessed on above-mentioned rotating shaft (55), by above-mentioned one, this first cam (59) is for supporting that holding member (77) pushes through a push strut (75) in downward direction, splined sleeve (63) is arranged slidably the splined shaft (55s) that possesses to above-mentioned rotating shaft (55) of spline fitted, this splined sleeve (63) is rotatably supported on the top of above-mentioned another leading arm (15A), and possess the second cam (65) that another support holding member (77) in downward direction pushes on above-mentioned splined sleeve (63) through another push strut (75), become by the rotation of above-mentioned motor (57) and make the formation that the support holding member (77) of both sides moves up and down.
2. band sawing machine according to claim 1, is characterized in that,
Above-mentioned first cam (59) with between above-mentioned second cam (65) and above-mentioned push strut (75), be separately positioned on the swing arm (71) above-below direction swung freely, the each cam follower (73) arranged in the centre position of above-mentioned each swing arm (71) is made to contact above-mentioned first cam (59) and above-mentioned second cam (65) and arrange, and below the front making the above-mentioned each swing arm (71) of the upper end of above-mentioned each push strut (75) abutting.
3. band sawing machine according to claim 1 and 2, is characterized in that,
The above-mentioned band saw edge (7) that the rotation of above-mentioned first cam (59) and above-mentioned second cam (65) produces is number Hz ~ hundreds of Hz to the frequency of the vibration of direction of feed.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004217302 | 2004-07-26 | ||
| JP2004-217302 | 2004-07-26 | ||
| JP2004217302 | 2004-07-26 | ||
| JP2005105112 | 2005-03-31 | ||
| JP2005105112A JP3949693B2 (en) | 2004-07-26 | 2005-03-31 | Band saw machine |
| JP2005-105112 | 2005-03-31 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800314811A Division CN101043965B (en) | 2004-07-26 | 2005-07-25 | Cutting method for workpiece and band-saw machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101357408A CN101357408A (en) | 2009-02-04 |
| CN101357408B true CN101357408B (en) | 2015-01-14 |
Family
ID=38808929
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810131097.4A Expired - Fee Related CN101357408B (en) | 2004-07-26 | 2005-07-25 | Workpiece cutting method and band-saw machine |
| CNA2008101310993A Pending CN101357410A (en) | 2004-07-26 | 2005-07-25 | Workpiece cutting method and band-saw machine |
| CN2008101310989A Expired - Fee Related CN101357409B (en) | 2004-07-26 | 2005-07-25 | Workpiece cutting method and band-saw machine |
| CN2005800314811A Active CN101043965B (en) | 2004-07-26 | 2005-07-25 | Cutting method for workpiece and band-saw machine |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101310993A Pending CN101357410A (en) | 2004-07-26 | 2005-07-25 | Workpiece cutting method and band-saw machine |
| CN2008101310989A Expired - Fee Related CN101357409B (en) | 2004-07-26 | 2005-07-25 | Workpiece cutting method and band-saw machine |
| CN2005800314811A Active CN101043965B (en) | 2004-07-26 | 2005-07-25 | Cutting method for workpiece and band-saw machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN101357408B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5879192B2 (en) * | 2012-05-02 | 2016-03-08 | 株式会社アマダホールディングス | Band saw machine |
| CN109396551A (en) * | 2018-07-27 | 2019-03-01 | 浙江锯力煌锯床股份有限公司 | Pulse controlled sawing saw frame |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558614A (en) * | 1984-02-06 | 1985-12-17 | Harris Gerald R | Band saw apparatus and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953117A (en) * | 1982-09-16 | 1984-03-27 | Toshio Hara | Automatic cutting method of band saw and device therefor |
| US6463836B1 (en) * | 1999-02-01 | 2002-10-15 | Howard L. Snodgrass, Jr. | Guide for band saws |
| US6202528B1 (en) * | 1999-02-08 | 2001-03-20 | Gary D. Morgan | Guide for bandsaw blade |
| EP1234629A1 (en) * | 2001-02-27 | 2002-08-28 | So.Fin.A. S.r.l. | Device for reciprocating a band saw perpendicular to its longitudinal axis |
-
2005
- 2005-07-25 CN CN200810131097.4A patent/CN101357408B/en not_active Expired - Fee Related
- 2005-07-25 CN CNA2008101310993A patent/CN101357410A/en active Pending
- 2005-07-25 CN CN2008101310989A patent/CN101357409B/en not_active Expired - Fee Related
- 2005-07-25 CN CN2005800314811A patent/CN101043965B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558614A (en) * | 1984-02-06 | 1985-12-17 | Harris Gerald R | Band saw apparatus and method |
| US4558614B1 (en) * | 1984-02-06 | 1987-03-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101357409B (en) | 2012-08-29 |
| CN101043965B (en) | 2011-12-07 |
| CN101043965A (en) | 2007-09-26 |
| CN101357409A (en) | 2009-02-04 |
| CN101357408A (en) | 2009-02-04 |
| CN101357410A (en) | 2009-02-04 |
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