CN204278141U - Linear saw and use its numerically controlled processing equipment - Google Patents
Linear saw and use its numerically controlled processing equipment Download PDFInfo
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- CN204278141U CN204278141U CN201420615257.3U CN201420615257U CN204278141U CN 204278141 U CN204278141 U CN 204278141U CN 201420615257 U CN201420615257 U CN 201420615257U CN 204278141 U CN204278141 U CN 204278141U
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Abstract
The utility model provides a kind of linear saw and uses its numerically controlled processing equipment.Described linear saw comprises: processing department (1), for extending linearly direction machining object along described linear saw, and on this processing object, generate working groove, described linear saw also comprises empty avoiding portion (2), described empty avoiding portion (2) is provided so that it is in the process by described working groove, and at least part of time does not contact with described working groove or is not subject to the active force from described working groove.According to the linear saw of the utility model embodiment owing to being provided with clearance structure, make the linear deformation of sawing if having time and producing after space reply machining object, thus effectively can prevent the generation of accumulated error, the positional precision of processing seam is improved greatly.
Description
Technical field
The utility model relates to machining tool field, particularly machining sheet saw blade and use the numerically controlled processing equipment of this saw blade.
Background technology
Linear saw blade is cutting tool conventional in existing manual saw and power saws, after saw blade being arranged in manual saw or power saws, due to the reverse active force backward of processing object that saw blade is subject in a forward direction, and saw blade do move up and down time, sawtooth is subject to upper and lower opposition, saw blade often produces deformation adding man-hour, comprises the deformation of saw blade linear direction and the deformation perpendicular to linear direction.In addition, saw blade itself has elasticity, therefore also can produce certain error when installing saw blade.
Due to the stress and deformation of saw blade itself, the error of lathe, characteristic of processing object etc. factors; above-mentioned linear saw usually can produce mismachining tolerance when each machining; each mismachining tolerance size is also dissimilar, and this error can be accumulated, till the deformation quantity that saw blade is maximum.Because existing saw blade sawtooth in process contacts with processing object always, thus cause last processing deformation to eliminate, retain always and accumulate, forming accumulated error, not only affect machining accuracy, also can cause shorten the service life of saw blade.
The above-mentioned technical problem of conventional linear saw is illustrated below for processing linear gap on plank.
Linear saw is used up and down reciprocatingly to add man-hour, above-below direction (Z-direction) stressed (processing object is to the active force of sawtooth) does not coincide with the center line linearly sawed, so will moment of torsion be produced, further, the saw blade in processing gap is general all thinner, and on the direction perpendicular to sawtooth hump place plane, rigidity is not enough, thus saw blade there will be bending, curved major will appear at the both sides of saw blade, i.e. Y direction, as shown in Figure 1.
In addition, saw blade is adding man-hour, the material being subject to processed plank can not the impact of uniformity etc. several factors, make stressed being difficult to of the saw blade left and right sides keep flat permanent always, unbalance stress also can cause saw blade add there will be man-hour bending, the bending meeting of saw blade causes saw blade Working position to depart from and offsets with machine direction, make the position of saw blade and rectilinear slot position to be processed not on same straight line, the angle of saw blade X-direction can not with straight line keeping parallelism to be processed, certain deviation angle can be produced, as shown in Figure 2 a and 2 b, wherein, the linear saw of black part submeter in figure, Fig. 2 a is the straight line processing effect (also can regard desirable straight line processing effect as) of initial state, Fig. 2 b is the straight line processing effect creating deviation angle.
Because of saw blade deformation cause machining path offset after, because sawtooth has certain height, and the plank processed has certain thickness, sawtooth is just clamped by the gap that deviation angle occurs that cuts before, saw blade is made still to continue to process with the angle departed from forward, offset distance is just increasing, and this accumulates skew exactly, or perhaps processing accumulated error.Fig. 2 b shows certain accumulation skew simultaneously.Meanwhile, in order to ensure straight line Working position, Z-direction can not be departed from usually in the two ends of linear saw, like this, the angle that machining path departs from is larger, and the deformation of linear saw is also larger, that is, in the process of mismachining tolerance accumulation, also have accumulated the deformation error of linear saw.
On the other hand, saw blade deformation also can produce a reverse restoring force, and this restoring force is by power stretching for saw blade.Because aforesaid deformation accumulation strengthens, when the restoring force of saw blade deformation be greater than gap depart from produced depart from chucking power time, saw blade starts the in a disguised form anti-direction of synform and replys, its machining path also can offset to the side offset shown in Fig. 2 b in the opposite direction, until get back to straight line Working position (Fig. 2 c), then, can continue to produce the deformation of mismachining tolerance Cumulate Sum to a direction (may be also may be and Fig. 2 b equidirectional with Fig. 2 b rightabout) to accumulate (Fig. 2 d), until again get back to straight line Working position (Fig. 2 e).
This to a direction skew, get back to straight line Working position, then offset, the process returning straight line Working position can constantly occur always, and therefore cause the straight line of processing not straight, the path of processing is changing always, typically there will be the machining path of serpentine.In addition, if described generation to depart from chucking power very large, make saw blade deformation be accumulated to its unaffordable degree, so saw blade may rupture.In existing solution, the reduction of accumulated error, can only strengthen from the rigidity of saw blade, machine tool error reduces, processing object characteristic is as far as possible excellent promotes and improve, but cannot fundamentally eliminate, thus the positional precision causing existing linear saw to carry out processing is low.
Utility model content
In order to the accumulated error preventing saw blade from adding man-hour, improve Working position precision, according to an aspect of the present utility model, provide a kind of linear saw, it comprises: processing department, for extending linearly direction machining object along what linearly saw, and on this processing object, generate working groove, linear saw also comprises empty avoiding portion, and empty avoiding portion is provided so that it is by the process of working groove, and at least part of time does not contact with working groove or is not subject to the active force from working groove.
According to the linear saw of the utility model embodiment, alternatively, the length in empty avoiding portion is greater than the thickness of processing object, and the width in empty avoiding portion is less than the Breadth Maximum of processing department, and the thickness in empty avoiding portion is less than the maximum machining width of processing department.
According to the linear saw of the utility model embodiment, alternatively, the maximum machining width of processing department equals the maximum gauge after the sawtooth open circuit of the sawtooth thickness of processing department or processing department.
According to the linear saw of the utility model embodiment, alternatively, the difference of the maximum machining width of processing department and the thickness in empty avoiding portion is greater than in this empty avoiding portion by the bending side-play amount that the frontal saw of processing object produces on the thickness direction in empty avoiding portion.
According to the linear saw of the utility model embodiment, alternatively, processing department and empty avoiding portion extend linearly the one-body molded or assembly and connection in direction along what linearly saw.
According to the linear saw of the utility model embodiment, alternatively, the one or both ends of linear saw are provided with fixed part, and the thickness of this fixed part is not more than the thickness of processing department, and width is not more than the Breadth Maximum of processing department.
According to the linear saw of the utility model embodiment, alternatively, linear saw comprises more than one processing department, and empty avoiding portion is arranged between two adjacent processing departments.
According to the linear saw of the utility model embodiment, alternatively, linear saw comprises more than one processing department and more than one empty avoiding portion, and multiple processing department and multiple empty avoiding portion are spaced.
According to the another aspect of the utility model embodiment, provide a kind of linear saw, it comprises: sawtooth and hump, wherein, the serrate part of linear saw tool is processing department, linear saw also comprises empty avoiding portion, the serrate one section of hump of the not tool be connected with processing department forms empty avoiding portion, the length in empty avoiding portion is greater than the thickness of the processing object of linear saw, and the thickness of hump is less than the thickness of sawtooth, or the thickness of one section of hump at place, empty avoiding portion is less than the thickness of sawtooth, or the thickness in empty avoiding portion is less than the thickness of sawtooth.
According to the another aspect of the utility model embodiment, provide a kind of numerically controlled processing equipment, it comprises aforesaid linear saw.
According to the one side again of the utility model embodiment, provide a kind of numerically controlled processing equipment, equipment comprises: numerical-control motor, any one linear saw in claim; Numerical-control motor comprises: vibrating motor, mobile motor; Vibrating motor vibrates this linear extending linearly on direction of saw for control linear saw; Mobile motor is used for control linear saw perpendicular to the plane translational motion extending linearly direction.
According to the numerically controlled processing equipment of the utility model embodiment, alternatively, numerical-control motor also comprises electric rotating machine, and this electric rotating machine is used for control linear saw with this central shaft linearly sawed for axle rotates.
According to the numerically controlled processing equipment of the utility model embodiment, alternatively, numerically controlled processing equipment also comprises clamping device head and resilient tool head, and clamping device head is installed on vibrating motor side, for gripping one end of linear saw; Resilient tool head directly or indirectly connecting linear saw the other end, wherein, this resilient tool head comprises stage clip or extension spring.
According to the linear saw of the utility model embodiment owing to being provided with clearance structure, make the linear deformation of sawing if having time and producing after space reply machining object, thus effectively can prevent the generation of accumulated error, the positional precision of processing seam is improved greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described below by the accompanying drawing of embodiment, apparently, the accompanying drawing in the following describes only relates to embodiments more of the present utility model, but not to restriction of the present utility model.
Fig. 1 is the three-dimensional view of the linear saw according to prior art;
Fig. 2 a ~ Fig. 2 e is the design sketch stage by stage utilizing the linear saw of prior art to process plank;
Fig. 3 a and Fig. 3 b is the schematic diagram of the basic structure of linear saw according to the utility model embodiment, and wherein, Fig. 3 a is the front view of linear saw, and Fig. 3 b is the side view of linear saw;
Fig. 4 a, Fig. 4 b and Fig. 4 c show a kind of structure of the linear saw of the utility model embodiment, and wherein, Fig. 4 a is the front view of linear saw, and Fig. 4 b is a side view of linear saw, and Fig. 4 c is the opposite side view of linear saw;
Fig. 5 a, Fig. 5 b and Fig. 5 c show the another kind of structure of the linear saw of the utility model embodiment, and wherein, Fig. 5 a is the front view of linear saw, and Fig. 5 b is a side view of linear saw, and Fig. 5 c is the opposite side view of linear saw;
Fig. 6 a, Fig. 6 b and Fig. 6 c show another structure of the linear saw of the utility model embodiment, and wherein, Fig. 6 a is the front view of linear saw, and Fig. 6 b is a side view of linear saw, and Fig. 6 c is the opposite side view of linear saw;
Fig. 7 shows the schematic diagram of the numerically controlled processing equipment according to the utility model embodiment.
Reference numeral
I cutting tip
II support section
1 processing department
1A processing department
1B processing department
2 empty avoiding portions
2A empty avoiding portion
2B empty avoiding portion
701 motors
702 tool heads
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing of the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of the utility model protection.
Unless otherwise defined, technical term used herein or scientific terminology should be in field belonging to the utility model the ordinary meaning that the personage with general technical ability understands." first ", " second " that use in the utility model patent application specification and claims and similar word do not represent any order, quantity or importance, and are only used to distinguish different parts.Equally, the similar word such as " " or " " does not represent that quantity limits yet, but represents to there is at least one.
As described in the background section, conventional linear saw, in reciprocal process, can produce accumulation deformation (error), can not realize the processing of high-precision straight line on the one hand, also can accelerate linearly to saw the aging of self on the other hand, even cause the damage of saw blade to rupture.Based on aforesaid analysis, the Bending Deformation of saw itself can produce a restoring force, and the effect of this restoring force makes to saw to be returned to the straightened condition before bending; But, due to the clamping action of processed object, this restoring force cannot be had an effect, thus deformation can not be replied in time, and then produce accumulation deformation.
The clamping action of processed object generally includes the clamping force (Y direction) of two inwalls in the gap processed, and linearly saws the reaction force from processing object that direction of advance (X-direction) is subject to.Wherein, described reaction force is contrary with saw direction of advance, the active force that top inner wall due to the gap (working groove) processed offsets with saw and applies it, this active force makes saw can not be returned to straightened condition in the Y-axis direction to the frictional force that saw produces.In fig. 2 a, represent the clamping force in aforesaid Y direction with F2, represent the reaction force in aforementioned X-direction with F1.
According to the technical solution of the utility model, by changing the structure of conventional linear saw, specifically, by arranging clearance structure, make to saw the aforementioned active force be not subject within regular hour and space from object to be processed, thus under the effect of deformation recovery power, be returned to the straight line Working position of saw, although so still deformation error can be produced in process, aforesaid accumulated error can be eliminated.
Fig. 3 a and Fig. 3 b is the schematic diagram of the basic structure of linear saw according to the utility model embodiment.Wherein, Fig. 3 a is the front view of linear saw, and Fig. 3 b is the side view of linear saw.Fig. 3 a and Fig. 3 b embodies two kinds of structure dividing mode.A kind of mode carries out dividing from the angle of the outside effect of linear saw, comprising: cutting tip I and support section II; Another kind of mode carries out dividing from the angle of the inside effect of linear saw, comprising: processing department 1, empty avoiding portion 2 and fixed part 3.From the angle in space, also can think, first kind of way is the angular divisions of width (X-direction corresponding in Fig. 1) from Fig. 3 a; The second way is the angular divisions of length direction (linearly sawing bearing of trend, the Z-direction corresponding in Fig. 1) from Fig. 3 a and Fig. 3 b.
See Fig. 3 a, in the first manner description scheme, then this is linearly sawed and comprises: for carrying out the cutting tip I of machining to processing object, such as, sawtooth; And for supporting the support section II of this cutting tip I, i.e. hump.
The said linear saw of the utility model embodiment can be the saw blade in sawtooth orientation with certain length." linearly saw linear direction " or direction that " linear sawline bearing of trend " or " Z-direction " and sawtooth in the cutting tip I linearly sawed arrange identical or parallel.Because saw blade has certain length, and its machined surface is thinner, and support section II can play the effect supporting saw blade, improve linear intensity of sawing, and also can facilitate the installation and removal of saw blade.
Alternatively, such as, the rigid material plate of strip can be made into cutting tip I along the side on its long limit, the opposite side on its long limit is made into support section II, and support section II can be only rigidity raw material itself, also can process further, such as, polished further by support section II, calcining, its shape, structure, thickness etc. all can be identical or different with cutting tip I.
Alternatively, support section II can be made up of the multistage of difformity and thickness, namely has different shapes and thickness at diverse location.Alternatively, other materials can be installed on the support section II of rigid material reinforce linear saw and support.
Alternatively, cutting tip I and support section II, except one-body molded, also can be assembled relation.Cutting tip I directly can be carried out assembling and being connected with the support section II made separately, be formed and linearly saw.
Description scheme in the second, then comprise according to the linear saw of the utility model embodiment: processing department 1, empty avoiding portion 2 and fixed part 3.
Processing department 1, empty avoiding portion 2 and fixed part 3 also can be one-body molded or assembling is formed.
As shown in Figure 3 a, processing department 1 is the serrate part of linear saw band, includes the appropriate section of the support section II of cutting tip I and one or connection with it.The direction of the sawtooth teeth of cutting tip I is schematic.
Empty avoiding portion 2 between processing department 1 and fixed part 3, with processing department 1 and/or fixed part 3 is one-body molded or assembly and connection.Empty avoiding portion 2, linearly sawing in the process of processing object, through working groove, but is not subject to processing the inwall active force of seam in the process of passing working groove.That is, in empty avoiding portion 2 through in the process of processing object, empty avoiding portion 2 can not clamp by processed groove both sides inwall, also can not offset with working groove top side inwall, and thus processing object also can not to the effect of linear saw forces occurring.Like this, as Such analysis, linear saw (comprising processing department 1) is returned to straight line Working position, so can eliminate the accumulated error in process under the effect of the deformation recovery power of linear saw self.
According to embodiment of the present utility model, the length in empty avoiding portion 2 is greater than the thickness (the processing distance in Z-direction) of processing object, width is less than the Breadth Maximum (X-direction) of processing department 1, and thickness is less than the width (the processing distance in Y direction) of working groove, like this, when empty avoiding portion 2 is by processing object, can ensure both can not the inwall clamping of processed groove both sides within certain period.Also can not offset with working groove top side inwall, thus can not by the active force of processing object within this period.The length of described period depends on the length in empty avoiding portion 2 and the difference of processing object thickness, and linear saw movement angle in the Z-axis direction and speed.
Specifically, as shown in Figure 3 a, the width L2 in empty avoiding portion 2 is less than the Breadth Maximum L1 (distance corresponding in X-direction in Fig. 1) of processing department 1, and wherein the Breadth Maximum of processing department 1 is actually sawtooth maximum elongation in the X-axis direction and the width sum of hump.If the width in empty avoiding portion 2 is less than the Breadth Maximum of processing department 1, after processing department 1 pair of processing object carries out machining and moves in the X-axis direction, empty avoiding portion 2 can continue to move a segment distance in the X-axis direction (such as, distance L=L1-L2), and in the process of empty avoiding portion 2 movement, empty avoiding portion 2 can not touch processing object in the X-axis direction, thus can not be subject to active force in the X-axis direction.
As shown in Figure 3 b, the thickness W2 in empty avoiding portion 2 is less than the width (the processing distance in Y direction) of working groove.Width (the processing distance in Y direction) due to working groove depends on the working width of processing department 1, and that is, the width of working groove equals or slightly larger than the maximum machining width of processing department 1.When processing department 1 is at the upper sawtooth arranged in a straight line of bearing of trend (Z-direction), namely the width of working groove equals or slightly larger than thickness (Y direction) W1 of sawtooth.
After processing department 1 pair of processing object carries out machining and moves in the X-axis direction, empty avoiding portion 2 can continue to move a segment distance in the X-axis direction (such as, distance L=L1-L2), move through working groove in the Z-axis direction simultaneously, thickness due to empty avoiding portion 2 is less than the width of working groove, make in the process of empty avoiding portion 2 movement, empty avoiding portion 2 can not clamped by the inwall of processed groove both sides in Y direction, thus empty avoiding portion 2 all can not be subject to limiting its active force of replying from processing object in X-direction and Y direction.
Similar aforementioned, within a process-cycle, after processing department 1 pair of processing object carries out machining, can be bent linear saw entirety (comprising processing department 1 and empty avoiding portion 2) deformation, like this, even if the thickness in empty avoiding portion 2 is less than the width of working groove, a side in empty avoiding portion 2 also likely contacts with the respective side inwall of working groove, but this side inwall is also rightabout active force with deformation to the active force in empty avoiding portion 2, can not hinder the deformation recovery of linear saw.Alternatively, the thickness in empty avoiding portion 2 is set, makes the difference of the maximum machining width of processing department 1 and this thickness be greater than the deformation side-play amount of empty avoiding portion 2 in Y direction, thus empty avoiding portion 2 is not contacted with working groove inwall when passing working groove.So when empty avoiding portion 2 is by processing object, empty avoiding portion 2 does not contact with processing object completely, thus linearly saws total detachment processing object, the deformation of linear saw is replied.
Embodiment according to Fig. 3 a and Fig. 3 b, can realize empty avoiding portion 2 with the support section II without cutting tip I.Such as, can remove or sawtooth is not installed, thus reducing the width of X-direction; Because cutting tip I is identical at Y direction thickness with support section II, by thin that this does not have a support section II of cutting tip I all or part of to realize the minimizing of Y direction thickness.
Also can there be sawtooth in empty avoiding portion 2, only these sawtooth teeth are less than the maximum length of teeth in X-direction of cutting tip I in the maximum length of X-direction, or these sawtooth teeth and its corresponding support section II are less than cutting tip I and its corresponding support section II on the whole in the maximum length of X-direction in the maximum length of X-direction on the whole.Consider that time of deformation and empty avoiding portion 2 movement velocity in X-direction replied by linear saw, require that empty avoiding portion 2 can to move a segment distance in X-direction non-contiguously with processing object, realizing empty avoiding portion 2 with the support section II without cutting tip I is schemes that a kind of ratio is easier to realize.
Alternatively, increase the maximum machining width of processing department 1 by structures such as sawtooth open circuits, thus the thickness that need not thin without the support section II of cutting tip I is to realize empty avoiding portion 2, and the thickness in empty avoiding portion 2 also can be made to be less than the maximum machining width of processing department 1.
The above-mentioned scheme that thins is that the thickness of support section II by not having cutting tip I reduces and realizes empty avoiding portion 2.Part or all the thickness of this part support section II can be reduced, as long as the length meeting the part (empty avoiding portion 2) that thickness reduces is greater than the thickness of processing object.Similarly, by thinning the thickness arranging empty avoiding portion 2, make the difference of the maximum machining width of processing department 1 and this thickness be greater than the deformation side-play amount of empty avoiding portion 2 in Y direction, thus empty avoiding portion 2 is not contacted with working groove inwall when passing working groove.
Alternatively, whole support section II is thinned, or use thickness to be less than the support section II of cutting tip I, the processing in empty avoiding portion 2 can be made so simpler.In order to ensure the integral hardness of linear saw, empty avoiding portion 2 still needs to have certain thickness.
In the scheme of Fig. 3 a and Fig. 3 b, the thickness of the partial continuous length of the support section II of cutting tip I is not had to be less than the maximum machining width (equaling the maximum machining width of processing department 1) of cutting tip I, and using the support section II of this part as empty avoiding portion 2.Alternatively, processing makes do not have the thickness of whole continuous lengths of the support section II of cutting tip I to be less than the maximum machining width of cutting tip I, and using the support section II of this part as empty avoiding portion 2, the utilization ratio of linear saw length can be improved, make the processing object of corresponding fixed thickness realize shorter linear saw.
Alternatively, the length in processing department 1 and empty avoiding portion 2 can adjust according to the thickness of processing object.This adjustment can be the linear saw (comprising processing department 1 and the empty avoiding portion 2 of different length) of design different size, also can be to design the variable linear saw in empty avoiding portion 2.As previously mentioned, the length in empty avoiding portion 2 is greater than the thickness of processing object.Alternatively, the length of processing department 1 also can be greater than the thickness of processing object.The cutting output of processing department 1 pair of processing object can be increased like this.Consider that linear saw entire length lengthens and may reduce its rigidity, therefore, the length in overall thinking processing department 1 and empty avoiding portion 2 to configure.
Fixed part 3 is arranged on the end of linear saw, for gripping from outside to linear saw.In the scheme of Fig. 3 a and Fig. 3 b, all there is fixed part 3 at the two ends of linear saw, two ends can be realized and fix.Alternatively, also only fixed part 3 can be at one end set, carry out one end and fix.Or, also directly can clamp processing department 1 and/or the empty avoiding portion 2 of linear saw, thus without the need to arranging fixed part 3.As shown in Figure 3 a and Figure 3 b shows, fixed part 3 can be machined described processing department 1 and empty avoiding portion 2 remaining part afterwards to original strip section, therefore its width in the X-axis direction can be substantially equal to processing department 1 width in the X-axis direction (Fig. 3 a), its thickness in the Y-axis direction can be substantially equal to processing department 1 thickness in the Y-axis direction (Fig. 3 b).Like this, not only simplify process (without the need to processing separately fixed part 3), fixed part 3 can also be made to have certain width and thickness, clamping of being more convenient for, rigidity is also stronger.Alternatively, fixed part 3 also can have other shape, such as, hook-shaped, for being fixed on extension spring or pull bar etc.In addition, the thickness of fixed part 3 and width are generally no more than thickness and the width of processing department 1 respectively, and such fixed part 3 can easily move in and out from processing seam together with processing department 1.
Linear saw can extend linearly direction along instrument and moves under automatic or manual drives, and carries out translational motion extending linearly in the vertical plane in direction with instrument.The motion that instrument extends linearly direction comprises only to one-way movement and the two-way back and forth movement in a direction.Linear saw can be in the optional position in three dimensions, and no matter in what position, the direction that extends linearly of linear processing tool all refers to the length direction that its sawtooth arranges.Such as, when the processing object flat sheet using linear saw level of processing to place, the sawtooth orientation of linearly sawing and horizontal plane are placed, namely place with processing object board material vertical, then the motion of linear saw comprises: extend linearly moving of direction along instrument, namely perpendicular to the lengthwise movement in the direction up or down (corresponding to aforesaid Z-direction) of horizontal plane; And, with the described translational motion campaign extended linearly in the vertical plane in direction, such as, to the motion of X-axis and/or Y direction.If linear saw is placed on the position angled with horizontal plane, so, instrument extends linearly the orientation that direction still refers to linear saw sawtooth, and this direction is now angled with horizontal plane too; And with described to extend linearly the vertical plane in direction angled with horizontal plane too.
According to embodiment of the present utility model, when the processing department 1 of linear saw acts on processing object, both did moving along its bearing of trend, also did the translational motion in the plane vertical with its bearing of trend; When empty avoiding portion 2 is by processing object, linear saw both did moving along its bearing of trend, also did the translational motion in the plane vertical with its bearing of trend.
A processing department 1 and an empty avoiding portion 2 is included according to the linear saw of the utility model embodiment shown in Fig. 3 a and Fig. 3 b.From the direction of sawtooth teeth, namely to the direction that processing object cuts, processing department 1 is positioned at the top in empty avoiding portion 2, and the two does not intersect.Alternatively, according to other embodiment of the present utility model, empty avoiding portion 2 can be positioned at the top of processing department 1, as shown in figures 4 a and 4b.
Alternatively, one or more processing department 1 can also be comprised according to the linear saw of the utility model embodiment, and one or more empty avoiding portion 2.Alternatively, processing department 1 and empty avoiding portion 2 can occur at interval; Alternatively, processing department 1 and empty avoiding portion 2 can occur in pairs; Alternatively, the quantity in empty avoiding portion 2 can be less than or equal to or greater than the quantity of processing department 1, such as, linear saw can comprise two processing departments 1 and an empty avoiding portion 2 (as Fig. 5 a, Fig. 5 b and Fig. 5 c), or, linear saw can comprise a processing department 1 and two empty avoiding portions 2 (as Fig. 6 a, Fig. 6 b and Fig. 6 c), or, linear saw can comprise two sections of processing departments 1 and two sections of empty avoiding portions 2, etc.Like this, according to the processing object of varying strength different-thickness, the linear saw of different structure can be chosen, also according to different machining accuracies, the linear saw of different structure can be selected.
If linear saw has multiple empty avoiding portion 2, the length in so each empty avoiding portion 2 is generally all greater than the thickness of processing object, and its width is less than the width of processing department 1, and its thickness is less than the maximum machining width of processing department 1.
Below for several linear saw structure, be described to its movement locus with to the process of processing object.
As mentioned above, Fig. 4 a, Fig. 4 b and Fig. 4 c show a kind of structure of the linear saw of the utility model embodiment.See Fig. 4 a, Fig. 4 b and Fig. 4 c, linear saw comprises processing department 1 and an empty avoiding portion 2, and processing department 1 under, empty avoiding portion 2 is upper.
Linearly to saw the machined surface of the processing object perpendicular to horizontal positioned, processing department 1 is first by the machined surface of processing object, and then, empty avoiding portion 2 is again by the machined surface of processing object.To linearly saw bottom, be placed on the initial position of the edge upper surface of processing object, after linear saw initial position is determined, linear saw moves downward along saw blade linear direction, carry out the translational motion of direction of advance simultaneously, in process, the frictional force that linear saw receives the resistance of direction of advance and the resistance of saw blade linear direction and produces because of chucking power and the resistance that offsets, saw blade there will be Bending Deformation, the deformation of saw blade causes saw blade Working position to depart from or machine direction skew, the position of saw blade and rectilinear slot to be processed be not on same straight line, when the end of processing department 1 leaves processing object, the empty avoiding portion 2 of linear saw is through processing object, now, linear saw is still while carry out the motion of linear direction, while carry out the motion of direction of advance, due to the thickness of whole support section II, or at least the thickness of the support section II at place of empty avoiding portion 2 is less than the thickness (equaling the maximum machining width of processing department 1 in this embodiment) of cutting tip I, therefore, when empty avoiding portion 2 is by processing object, linear saw can not clamp in processed good gap, thus linear saw can recover deformation, under the rigid return power of saw blade itself and/or the stretching action at linear saw two ends, linear saw is returned to rapidly straight line Working position, still processes according to original linear position, reaches the effect correcting skew, eliminates the generation of accumulated error.
When empty avoiding portion 2 is by processing object, the stand out (L1-L2 in similar earlier figures 3a) due to processing department 1 and empty avoiding portion 2 equals the length X of sawtooth teeth alternatively
sT, thus when empty avoiding portion 2 is by processing gap, empty avoiding portion 2 is generally less than these sawtooth teeth length X at direction of advance (X-direction) forward travel distance
sT, reach at most the distance of sawtooth teeth length.Like this, empty avoiding portion 2 can be made not contact with processing object in a forward direction.In order to meet this condition, usually, in empty avoiding portion 2 by the time of processing object, Z is met
2/ V
2Z≤ X
sT/ V
2X, wherein, Z
2the length (Z-direction) in empty avoiding portion, X
sTthe length (X-direction) of sawtooth teeth, V
2Xand V
2Zempty avoiding portion 2 respectively by during processing object in X-direction with at the speed of Z-direction or average speed.
When empty avoiding portion 2 is completely by processing gap, or when linearly sawing stop motion or change track, linear saw completes this cutting carried out processing object.
As previously mentioned, alternatively, the difference of the thickness in empty avoiding portion 2 and the maximum machining width of processing department 1 is greater than the side-play amount that saw blade produced before this empty avoiding portion 2 is by processing object, like this, when empty avoiding portion 2 is by processing object, cutting tip I and the support section II of whole linear saw all do not contact with processing object, and linear saw can not the clamping of processed good gap.
Next, alternatively, linear saw only does one-way movement on linear bearing of trend, and does not continue to advance along direction of advance, so, under the drive of motor, or under the drive of return mechanism in numerically controlled processing equipment, or manually mobile linear saw to the original position of second process-cycle, now first process-cycle terminates, such as, the upper surface position of processing plate still got back to by linear saw, carries out the processing of second period.By that analogy, processing object is processed.
Alternatively, adopt the mode of Reciprocated cutting, stock-removing efficiency is higher.At this moment, linear saw moves reciprocatingly on linear bearing of trend, aforesaid cutting is actually half period, i.e. the first half period, then, linear saw carried out for the second half period, and linear saw carries out in move upward (direction contrary relative to the cutting direction of the first half period) along linear direction, and empty avoiding portion 2 first passes through processing object.
During this, if be less than or equal to sawtooth teeth length at the horizontal forward travel distance in the first half period empty avoiding portion 2, so in the second half process-cycles, moving along linear sawline direction can only be done by empty avoiding portion 2, and does not do moving along direction of advance.This is because, if the first half period empty avoiding portion 2 forward travel distance has equaled the length of sawtooth teeth, so the second half period, moving along linear sawline direction is only done in empty avoiding portion 2, do not do the translational motion along direction of advance, otherwise empty avoiding portion 2 will not advance space.
Or in the second half period, moving along linear sawline direction had both been done in empty avoiding portion 2, did again the translational motion along direction of advance, still needed at the forward travel distance of the second half period and the forward travel distance sum of the first half period the length being less than or equal to sawtooth teeth.This continuous motor pattern in a forward direction is more conducive to controlling linear saw.
Empty avoiding portion 2 is by after processing object, and processing department 1 again by processing object, and is cut processing object again, and the second half period terminated.
Due in next cycle (second process-cycle), first carry out the cutting of processing department to processing object, therefore, the cumulative maximum error that in fact empty avoiding portion 2 can eliminate is the margin of error of reciprocal twice cutting.
In the process-cycle afterwards, linear saw proceeds direction of advance translational motion and moving along linear direction again, by that analogy, processes processing object.
If linear saw has multiple processing department 1 and multiple empty avoiding portion 2, then processing department 1 and empty avoiding portion 2 sequentially pass through the machined surface of processing object successively, and processing department 1, when by machined surface, contacts machining object with processing object; When empty avoiding portion 2 is by machined surface, not by the clamping of processing object, reply deformation.
Fig. 5 a, Fig. 5 b and Fig. 5 c show the another kind of structure of the linear saw according to the utility model embodiment.See Fig. 5 a, Fig. 5 b and Fig. 5 c, linear saw comprises two processing departments, processing department 1A and processing department 1B, and an empty avoiding portion 2, and empty avoiding portion 2 is at two between processing department 1A and 1B.
Linearly to saw the machined surface of the processing object perpendicular to horizontal positioned, be processed as example to it, processing department 1A is first by the machined surface of processing object, and then, empty avoiding portion 2 is by the machined surface of processing object, and processing department 1B is again by the machined surface of processing object afterwards.
By the initial processing position point being placed on the edge upper surface of processing object bottom linearly sawed, carry out the processing of one-period.After linear saw initial position is determined, linear saw carries out carrying out longitudinally moving downward and in the machined surface of the processing object vertical with instrument linear direction, carrying out the translational motion of direction of advance along linear direction, namely the processing department 1A of first linear saw carries out the translational motion of direction of advance and carries out longitudinal direction along linear direction and move downward, in the process of processing department 1A machining object, linear saw receives the resistance of direction of advance and the resistance of saw blade bearing of trend and frictional force, saw blade there will be Bending Deformation, the deformation of saw blade causes saw blade Working position to depart from or machine direction skew, the position of saw blade and rectilinear slot to be processed be not on same straight line, when the end of processing department 1A leaves processing object, the empty avoiding portion 2 of linear saw is through processing object, now, linear saw is still while carry out the motion of linear direction, while carry out the motion of direction of advance, due to the thickness of whole support section II, or at least the thickness of place of empty avoiding portion 2 support section II is less than the thickness of cutting tip I, therefore, when empty avoiding portion 2 is by processing object, linear saw can not clamp in processed good gap, thus linear saw can recover deformation, under the rigid return power of saw blade itself and/or the stretching action at linear saw two ends, linear saw is returned to rapidly straight line Working position, still processes according to original linear position, reaches the effect correcting skew, eliminates the generation of accumulated error.
Similar aforementioned, when empty avoiding portion 2 is by processing object, empty avoiding portion 2 is generally less than the sawtooth teeth length of processing department 1A at the forward travel distance of X-direction, maximum sawtooth teeth length.
Subsequently, processing department 1B by processing object, and cuts processing object, and linear saw proceeds longitudinally to move downward along linear direction, and carries out the translational motion of direction of advance.Process in the process of plank sheet material at processing department 1B, linear saw still can receive the resistance of direction of advance and the resistance of saw blade bearing of trend and frictional force, may Bending Deformation be there is in saw blade, the deformation of saw blade likely causes saw blade Working position to depart from or machine direction skew, and the position of saw blade and rectilinear slot to be processed be not on same straight line.
Alternatively, when the end of processing department 1B leaves processing object, can control linear saw the speed of service or movement locus, make it slow down or stop motion.
Next, alternatively, linear saw only extends linearly on direction at it and carries out one-way movement, driven by motor can be used, or a response agency is set on numerical control device drives, or Non-follow control, make linearly to cut the original position reaching second process-cycle, now first process-cycle terminates.After second process-cycle terminates, under the drive of motor, or manually move the original position linearly cutting next cycle, linear saw carries out the processing in the 3rd cycle, by that analogy, processes processing object.
Alternatively, linearly saw carries out upper and lower reciprocating motion, and so, aforesaid cutting is actually half period, i.e. the first half period, and then, linear saw carried out for the second half period, and the processing department 1B linearly sawed, empty avoiding portion 2 and processing department 1A are successively by processing gap.In this second half period, linear saw carries out longitudinally moving upward and carrying out translational motion perpendicular on the processing plane of linear direction along linear direction, processing department 1B first passes through processing object, processing object is cut, then the empty avoiding portion 2 of linear saw passes through processing object, when empty avoiding portion 2 is by processing object, linear saw adds the error produced man-hour and can be corrected and recover, and the margin of error at this moment eliminated is the margin of error that twice cutting produces; Finally, processing department 1A again by processing object, and cuts processing object, and first process-cycle terminates.
Due in next cycle (second process-cycle), first carry out the cutting of processing department to processing object, therefore, the cumulative maximum error that in fact empty avoiding portion 2 can eliminate also is the margin of error of reciprocal twice cutting.
Second process-cycle, linear saw continues to move downward forward again, by that analogy, processes processing object.
As compared to the linear saw structure shown in Fig. 4 a, Fig. 4 b with Fig. 4 c, the linear saw structure shown in Fig. 5 a, Fig. 5 b and Fig. 5 c is provided with a processing department by increase, can increase cutting output.
Fig. 6 a, Fig. 6 b and Fig. 6 c show another structure of the linear saw according to the utility model embodiment.See Fig. 6, linear saw comprises two empty avoiding portions, empty avoiding portion 2A and empty avoiding portion 2B, and a processing department 1, and processing department 1 is between empty avoiding portion 2A and empty avoiding portion 2B.
Linearly to saw the machined surface of the processing object perpendicular to horizontal positioned, example is processed as to it, empty avoiding portion 2A first by the machined surface of processing object, then, processing department 1 is again by the machined surface of processing object, and the portion 2B of empty avoiding is afterwards again by the machined surface of processing object.Due to empty avoiding portion 2A to processing object without shear action, through hole can be set by the initial manufacture position of processing object and make empty avoiding portion 2A be passed through processing object.
Or directly the lower end of processing department 1 is placed in the initial processing position of processing object, makes processing department 1 first by the machined surface of processing object, then empty avoiding portion 2B is again by the machined surface of processing object.
By linearly sawing the initial processing position point being placed on processing object, carry out the processing of one-period.After processing starts, linear saw carries out the translational motion of direction of advance and carries out longitudinal direction along linear direction and move downward, such as, according to the aforementioned the scheme directly lower end of processing department 1 being placed in the initial processing position of processing object, the processing department 1 of linear saw is carried out the translational motion of direction of advance and is carried out longitudinal direction along linear direction and move downward, in the process of processing department 1 machining object, linear saw receives the resistance of direction of advance and the resistance of blade direction and frictional force, saw blade likely there will be Bending Deformation, the deformation of saw blade may cause saw blade Working position to depart from or machine direction skew, the position of saw blade and rectilinear slot position to be processed be not on same straight line, when processing object is left in the upper end of processing department 1, the empty avoiding portion 2B of linear saw is through processing object, now, linear saw is still while carry out the motion of linear direction, while carry out the motion of horizontal direction of advance, thickness due to whole support section II or at least support section II at 2B place of empty avoiding portion is less than the thickness of cutting tip I, therefore, when empty avoiding portion 2B is by processing object, linear saw can not clamp in processed good gap, linear saw is so can recover deformation, under the rigid return power of saw blade itself and/or the stretching action at linear saw two ends, saw blade is returned to rapidly straight line Working position, still processes according to original linear position, reaches the effect correcting skew, eliminates the generation of accumulated error.
Under the pattern moving back and forth processing, empty avoiding portion 2B is double by the processing gap on processing object, and during by processing object, its horizontal forward travel distance sum is generally less than the sawtooth length of processing department 1, the distance of maximum advance sawtooth length.
When empty avoiding portion 2B is upwards again by after processing object, the processing department 1 of linear saw passes through processing object, when processing department 1 is by processing object, processing object is processed, equally, linear saw, in this working angles, still may produce deformation and cut orbit displacement, but this error can at empty avoiding portion 2A subsequently by being eliminated during processing object and being corrected.At empty avoiding portion 2A by after processing object, first process-cycle terminates.
Second process-cycle, linear saw continues to move downward forward again, and the 3rd process-cycle, linear saw continues to move downward forward again, by that analogy, processes processing object.
Under reciprocal cooked mode, in a complete machining cycle, linear saw structure shown in Fig. 4 a, Fig. 4 b and Fig. 4 c and the linear saw structure shown in Fig. 5 a, Fig. 5 b and Fig. 5 c have all carried out by eliminating processing department during processing gap the error that twice cutting accumulate in an empty avoiding portion, and the linear saw structure shown in Fig. 6 a, Fig. 6 b and Fig. 6 c, because the two ends up and down in processing department are all provided with empty avoiding portion, therefore after processing object being cut, error can be eliminated in time at every turn, prevent error accumulation better effects if.
Adding man-hour, linear saw needs accurately to control in the pace of direction of advance, makes the saw blade of linear saw have the sufficient empty avoiding time.That is, the empty avoiding portion of linear saw when moving by the speed of processing object with linearly saw the velocity of displacement advanced on processing object and needs to match, empty avoiding portion was no more than by the time of processing object and linearly saws advance sawtooth teeth apart from the required time.
Because the translational motion of direction of advance is integrally done in the processing department of linearly sawing and empty avoiding portion, also do the one-way movement along saw blade linear direction or reciprocating motion simultaneously, like this, after processing department is cut processing object, empty avoiding portion passes through processing object, in the process of empty avoiding portion by processing object, linear saw is still in horizontal advance, empty avoiding portion is longer by the time of processing object, the lateral displacement that linear saw advances is larger, if empty avoiding portion is by the overlong time of processing object, so linear saw proceeds to the region that processing object is not cut, so linear saw cannot advance, or the wearing and tearing of saw blade or the skew of angle may be caused, produce and cut error.If empty avoiding portion is too short by the time of processing object, then the lateral displacement of linear saw advance is too small, much smaller than there being serrated portion sawtooth teeth length, processing department just starts to process again next time, the major part in the gap of having cut may be caused to be cut one time again, stock-removing efficiency is too low, loses time and resource.
On the other hand, empty avoiding portion also will enough make the deformation of whole linear saw recover completely by the time of processing object, thus plays the effect eliminating accumulated error.
Therefore, linear saw empty avoiding portion needed to be no more than the time needed for linear saw advance displacement sawtooth teeth length by the time of processing object, but can not be excessively little, suitably can adjusting according to factors such as the material of processing object and machining accuracies, making the empty avoiding portion of linear saw need to match by the speed of processing object and the velocity of displacement linearly saw when to carry out horizontal advance on processing object when moving.If adopt vibrating motor to carry out control linear saw in the reciprocating motion of Z-direction, then to control the matching relationship of linear saw velocity of displacement on an x-y plane that vibrating motor vibration frequency and displacement motor control well.
Linear saw of the present utility model can be used in manual saw or power saws, and numerically controlled processing equipment also can be used to drive it.
The utility model embodiment still provides a kind of numerically controlled processing equipment using linear saw, and Fig. 7 shows the schematic diagram of numerically controlled processing equipment, and see Fig. 7, this numerically controlled processing equipment has multiple motor 701, involving vibrations motor, translation motor, electric rotating machine etc.Vibrating motor moves on linear bearing of trend for control linear saw; Mobile motor is carrying out translational motion for control linear saw S perpendicular on the described direction extending linearly direction, such as, along moving of X-axis and/or Y-axis, electric rotating machine can control linear saw with the central shaft of saw blade for axle, carry out the rotary motion of different angles.
Numerically controlled processing equipment can comprise one or more tool heads 702, for the one or both ends connected or fixed linear is sawed.
In embodiment shown in Fig. 7, numerically controlled processing equipment has one group of tool heads 702, and it comprises a clamping device head and a resilient tool head, and one end of linear saw is clamped and fixed on clamping device head, and the other end is connected to resilient tool head directly or indirectly.Clamping device head is installed on a vibrating motor, thus vibrating motor drives the linear saw on clamping device head to move reciprocatingly.This elastic mechanism such as stage clip or extension spring.The elastic reaction of extension spring or stage clip can play positioning action to linear saw, also can provide restoring force for linearly sawing reply deformation.
Numerical-control motor can also adjust movement position and the angle of described tool heads according to digital control signal, thus adjustment machining angle.
According to the linear saw of the utility model embodiment owing to being provided with clearance structure, make the linear deformation of sawing if having time and producing after space reply machining object, thus effectively can prevent the generation of accumulated error, the positional precision of processing seam is improved greatly.
The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (13)
1. linearly saw for one kind, it comprises:
Processing department (1), for extending linearly direction machining object along described linear saw, and generates working groove on this processing object,
It is characterized in that,
Described linear saw also comprises empty avoiding portion (2),
Described empty avoiding portion (2) is provided so that it is in the process by described working groove, and at least part of time does not contact with described working groove or is not subject to the active force from described working groove.
2. linear saw according to claim 1,
It is characterized in that,
The length of described empty avoiding portion (2) is greater than the thickness of described processing object,
The width of described empty avoiding portion (2) is less than the Breadth Maximum of described processing department (1), and
The thickness of described empty avoiding portion (2) is less than the maximum machining width of described processing department (1).
3. linear saw according to claim 1,
It is characterized in that,
The maximum machining width of described processing department (1) equals the maximum gauge after the sawtooth thickness of described processing department (1) or the sawtooth open circuit of described processing department (1).
4. linear saw according to claim 1,
It is characterized in that,
The difference of the maximum machining width of described processing department (1) and the thickness in described empty avoiding portion (2) is greater than the bending side-play amount that described linear saw produces on the thickness direction of described empty avoiding portion (2) before this empty avoiding portion (2) are by described processing object.
5. linear saw according to claim 1,
It is characterized in that,
Described processing department (1) and described empty avoiding portion (2) extend linearly the one-body molded or assembly and connection in direction along described linear saw.
6. linear saw according to claim 1,
It is characterized in that,
The one or both ends of described linear saw are provided with fixed part (3), and the thickness of this fixed part (3) is not more than the thickness of described processing department (1), and width is not more than the Breadth Maximum of described processing department (1).
7. linear saw according to claim 1,
It is characterized in that,
Described linear saw comprises more than one processing department (1), and described empty avoiding portion (2) is arranged between two adjacent described processing departments (1).
8. linear saw according to claim 1,
It is characterized in that,
Described linear saw comprises more than one processing department (1) and more than one empty avoiding portion (2), and described multiple processing department (1) and described multiple empty avoiding portion (2) are spaced.
9. linearly saw for one kind, it comprises: sawtooth (I) and hump (II),
Wherein, the part that described linear saw has sawtooth (I) is processing department (1),
It is characterized in that,
Described linear saw also comprises empty avoiding portion (2),
Above described empty avoiding portion (2) is formed the one section of hump (II) without sawtooth (I) be connected with described processing department (1),
The length of described empty avoiding portion (2) is greater than the thickness of the processing object of described linear saw, and
The thickness of described hump (II) is less than the thickness of described sawtooth (I), or the thickness of described one section of hump (II) at described empty avoiding portion (2) place is less than the thickness of described sawtooth (I), or the thickness in described empty avoiding portion (2) is less than the thickness of described sawtooth (I).
10. a numerically controlled processing equipment, is characterized in that, described numerically controlled processing equipment comprises the linear saw in claim 1-9 described in any one.
11. 1 kinds of numerically controlled processing equipments, is characterized in that,
Described equipment comprises: numerical-control motor (701), the linear saw in claim 1-9 described in any one;
Described numerical-control motor (701) comprising: vibrating motor, mobile motor;
Described vibrating motor vibrates this linear extending linearly on direction of saw for controlling described linear saw;
Described mobile motor is for controlling described linear saw perpendicular to the described plane translational motion extending linearly direction.
12. numerically controlled processing equipments according to claim 11, is characterized in that,
Described numerical-control motor (701) also comprises electric rotating machine, and this electric rotating machine is for controlling described linear saw with this central shaft linearly sawed for axle rotates.
13. numerically controlled processing equipments according to claim 11, is characterized in that,
Described numerically controlled processing equipment also comprises clamping device head and resilient tool head,
Described clamping device head is installed on described vibrating motor side, for gripping one end of described linear saw;
Described resilient tool head connects the other end of described linear saw directly or indirectly, and wherein, this resilient tool head comprises stage clip or extension spring.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339422A (en) * | 2014-10-22 | 2015-02-11 | 东莞市益松数控科技有限公司 | Linear saw and machining method using same as well as numerically-controlled machining equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339422A (en) * | 2014-10-22 | 2015-02-11 | 东莞市益松数控科技有限公司 | Linear saw and machining method using same as well as numerically-controlled machining equipment |
| WO2016062249A1 (en) * | 2014-10-22 | 2016-04-28 | 东莞市益松数控科技有限公司 | Linear saw, machining method using same and numerical control machining device |
| US10661468B2 (en) | 2014-10-22 | 2020-05-26 | Dongguan City Yisong High Technology Co., Ltd. | Linear saw, and machining method and numerical control machining device that use same |
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