A kind of technological equipment processing smooth block
Technical field
The present invention relates to the technological equipment of internal combustion engine and compressor components processing.In particular to the technological equipment of the smooth block of processing crank round slider machine.
Background technology
In traditional internal combustion engine and compressor, realize the conversion between the reciprocating motion of piston and the rotary motion of bent axle by toggle.But in described toggle, due to the existence of connecting rod, the internal combustion engine of toggle and compressor have the defects such as bulky, heavy, balance quality is poor.
For solving the problem, Chinese patent literature CN85200358B discloses one " crankshaft circular slide block reciprocating piston internal combustion engine "; Chinese patent literature CN85100359B discloses one " crankshaft circalar slide block reciprocating piston compressor "; Chinese patent literature CN1067741C discloses one " crank and double-round slide reciprocating piston internal combustion engine "; Chinese patent literature CN1067742C discloses one " crank and multi-round slide reciprocating piston internal combustion engine ".
The common feature of internal combustion engine and compressor disclosed in above-mentioned Chinese patent literature, in reciprocating motion wherein and rotation movement mutual conversion mechanism, instead of toggle with circular slider-crank mechanism.Circular slider-crank mechanism comprises bent axle, smooth block and piston.Smooth block is provided with eccentric circular hole; Piston comprises bizet and piston seat, and the piston seat of piston is provided with circular slider accommodation hole.The rotatable circular slider accommodation hole being placed in piston of smooth block, the crank-pin of bent axle is rotatable to be assemblied in described eccentric circular hole.
When above-mentioned mechanism is applied to internal combustion engine and compressor, toggle can be replaced.For internal combustion engine, during work, combustion gas expansion in combustion chamber promotes piston movement, the smooth block disposed therein by piston driving moves reciprocatingly, and smooth block rotates in described piston simultaneously, the synthesis of described reciprocating motion and rotary motion makes the central axis of the central axis flexing axle of the eccentric circular hole on smooth block rotate; And the dead in line of the central axis of described eccentric circular hole and the crank-pin of bent axle, thus the conversion reciprocating to the rotary motion of bent axle of piston can be realized.The internal combustion engine of motion conversion just in time with above-mentioned of compressor is contrary, no longer describes here.
Different with traditional crank connecting link machine, crank round slider machine does not arrange connecting rod, but have employed a part being referred to as smooth block and instead of connecting rod.Smooth block is arranged in the accommodating hole on piston or dynamic balance slide block.In the mechanism with multiple smooth block, to combine with the phase difference of 180 degree between adjacent smooth block, be solidified as a whole after the mode of combination not only will combine, but also easy accessibility.After combination, on smooth block, the precision of some size positions is also higher.Under normal circumstances, smooth block single part must have higher required precision, and the precision after guarantee combination meets designing requirement.This makes to need in the processing and manufacturing of smooth block to use high level process equipment, thus manufacturing cost is promoted greatly.
Summary of the invention
The invention provides a kind of technological equipment processing smooth block, technological equipment structure of the present invention is simple, and can ensure the required precision of the smooth block processed.
One of them aspect of the present invention, provides a kind of technological equipment processing smooth block, comprising: cylindrical base, the eccentric shaft stretched by this base one end facing epitaxy, by outward extending two positioning pin columns in other end and securing member;
The eccentric throw E that eccentric shaft departs from base axis is identical with the eccentric distance e of smooth block eccentric orfice;
The excircle dimension of described two positioning pin columns and the dowel hole of smooth block to be processed match, and the distance that its axis separates is identical with the pitch-row in two rationed marketing holes;
Two positioning pin column axis are identical with size relationship relative to the position of smooth block cylindrical with two dowel holes on smooth block with size relationship relative to the position of base axis;
Two positioning pin column axis are identical with size relationship relative to the position of the eccentric orfice of smooth block with two dowel holes on smooth block with size relationship relative to the position of eccentric shaft axis;
On the end face arranging positioning pin column at described base and relative to the position of eccentric shaft, be provided with and allow tool bore;
Described securing member is dismantled and assembled to be arranged on two positioning pin columns, and after smooth block is inserted in positioning pin column, smooth block is anchored on base by securing member.
Optionally, described base cylindrical is not less than smooth block cylindrical to be processed.
Optionally, the scope being outwards not more than smooth block cylindrical to be processed at the end face Shang Qieyou center arranging positioning pin column of described base is also provided with the first boss.
Optionally, to be detachably fixed with one between described eccentric shaft and base or the two is one-body molded.
Optionally, to be detachably fixed with one between arbitrary positioning pin column and base or the two is one-body molded.
Optionally, also comprise pressing plate, the position corresponding to positioning pin column on pressing plate arranges two through hole, and after smooth block to be processed is inserted in positioning pin column, positioning pressuring plate pushes down this smooth block by opposite side, and by described securing member, three is fastening.
Optionally, corresponding to base allowing the position of tool bore be also provided with cutter relieving through hole on pressing plate, the aperture size of cutter relieving through hole is not less than the aperture size of eccentric orfice on smooth block to be processed.
Optionally, the outline of described pressing plate does not exceed outside smooth block excircle configuration to be processed.
Optionally, the outline of described pressing plate exceeds outside smooth block excircle configuration to be processed, at pressing plate towards described smooth block side and the region not exceeding this smooth block excircle configuration is provided with the second boss.
Optionally, also balance weight is provided with pressing plate was last.
Optionally, described in allow tool bore be circular port, radial diameter is not less than the eccentric orfice diameter of smooth block to be processed.
Compared with prior art, one of them aspect of the present invention has the following advantages: when utilizing this technological equipment to process smooth block, first on smooth block blank, form two dowel holes; Then, the dowel hole of two on smooth block blank is inserted in two positioning pin columns of the base of this technological equipment, fixes with securing member; At the outer bowlder of processing smooth block, the periphery (i.e. outer peripheral face) of holder base, and when processing smooth block eccentric orfice, holder eccentric shaft, the cylindrical axis of the smooth block of such processing overlaps with base axis, and the eccentric orfice axis of smooth block overlaps with eccentric shaft axis; Thus ensure that the precision of the eccentric throw of smooth block eccentric orfice; Meanwhile, due in process, be two dowel hole location all the time, also ensure that the precision of dowel hole relative to phase position and size relationship between smooth block cylindrical and eccentric orfice; Make the smooth block applying the processing of this technological equipment when being assembled into circular slider set in 180 phase differences, the eccentric throw of eccentric orfice can not because of the problem adjusting turnback angle that secundly then occurs; In addition, apply this technological equipment and can process smooth block on engine lathe, can not manufacturing cost be increased.
Accompanying drawing explanation
Fig. 1 assembles one of structural representation after smooth block to be processed for the technological equipment shown in Fig. 3;
Fig. 2 assembles the structural representation two after smooth block to be processed for this for the technological equipment shown in Fig. 3;
Fig. 3 is the example structure schematic diagram of the technological equipment of processing smooth block of the present invention;
Fig. 4 is the structural representation of the embodiment of invention pressing plate;
Fig. 5 is the structural representation of the smooth block utilizing embodiments of the invention technological equipment to process;
Fig. 6 is the structural representation after process lightening grooves on the smooth block shown in Fig. 5.
Detailed description of the invention
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Fig. 3 is the example structure schematic diagram of the technological equipment of processing smooth block of the present invention.Fig. 1 assembles one of structural representation after smooth block to be processed for the technological equipment shown in Fig. 3; Fig. 2 assembles the structural representation two after smooth block to be processed for this for the technological equipment shown in Fig. 3.
Please refer to Fig. 3, in the present embodiment, this technological equipment comprises cylindrical base 1, the eccentric shaft 2 stretched by wherein one end facing epitaxy of described base 1 and by outward extending two positioning pin columns of other end end face, is called the first positioning pin column 1-3a and the second positioning pin column 1-3b.This technological equipment also comprises securing member (not shown in Fig. 3).A kind of concrete structure of securing member is shown, i.e. bolt 4 in Fig. 1 and Fig. 2.Described base 1 and eccentric shaft 2, one-body molded between base 1 and two positioning pin columns.
Please continue to refer to Fig. 3, described eccentric shaft 2 is in cylindrical, and described cylindrical base 1 and described eccentric shaft 2 axis being parallel, distance is therebetween called the eccentric throw E of eccentric shaft 2, and this eccentric throw E is identical with the eccentric distance e of eccentric orfice on smooth block to be processed.
Described first positioning pin column 1-3a and the second positioning pin column 1-3b is cylinder, and the axis of two positioning pin columns all with the axis being parallel of described base 1.The excircle dimension of described two positioning pin columns and two dowel holes of smooth block to be processed match, and the distance that its axis separates is identical with the pitch-row of two dowel holes, and this makes smooth block be socketed on two described positioning pin columns by two dowel holes.
Because the pore size measuring dowel hole on smooth block is generally identical, in the present embodiment, the first described positioning pin column 1-3a is identical with the radial dimension of the second positioning pin column 1-3b; The axial length of the two is not less than the thickness of smooth block.
The first described positioning pin column 1-3a and the second position of positioning pin column 1-3b on base 1 meet following relation, and described two positioning pin columns are identical with size relationship relative to the position of smooth block cylindrical with dowel hole on smooth block with size relationship relative to the position of this base axis.And two positioning pin column axis are identical with size relationship relative to the position of the eccentric orfice of smooth block with two dowel holes on smooth block with size relationship relative to the position of eccentric shaft 2 axis.That is, two positioning pin columns, base and eccentric shaft are corresponding with two dowel holes of smooth block, smooth block body and eccentric orfice respectively, after smooth block is socketed on positioning pin column by its dowel hole, the axes coincide of smooth block cylindrical central axis and described base 1, smooth block eccentric orfice axis and described eccentric shaft 2 dead in line.
Relative to the position of eccentric shaft 2 on the end face that described base 1 arranges two positioning pin columns, be also provided with and allow tool bore 1-1.The described tool bore 1-1 that allows is circular port in the present embodiment, and its aperture is not less than the aperture of smooth block eccentric orfice to be processed, for when processing smooth block eccentric orfice, dodges space for cutter provides, and ensures eccentric orfice processing.It should be noted that, described in allow tool bore 1-1 not must for circular port, it can also be the shape such as oval, square, as long as its size can meet this technological equipment dodge space when processing smooth block eccentric orfice for process tool provides enough.
The technological equipment of the present embodiment also comprises a securing member, and it is for by fastening for smooth block blank to be processed, and in the present embodiment, this securing member is bolt 4 as illustrated in fig. 1 and 2.Accordingly, the first positioning pin column 1-3a and the second positioning pin column 1-3b arrange the screw thread matched, after smooth block blank is socketed on two positioning pin columns, smooth block blank is anchored on this technological equipment by the free end of positioning pin column by bolt 4, in order to processing.
In the present embodiment, described base 1, eccentric shaft 2 and positioning pin column 1-3a and 1-3b are cylindrical.Wherein, two positioning pin columns radial dimension determined by smooth block eccentric orfice.And the radial dimension of described base 1 and eccentric shaft 2 under clamping condition, can have larger alternative at guarantee turning attachment.In the present embodiment, base 1 is cylinder, and its axis thickness need meet the needs of turning attachment clamping, and radial dimension is not less than the outside diameter of smooth block to be processed.The radial dimension of eccentric shaft 2 is less than the size of base 1, and its cylindrical is wrapped within base 1 cylindrical completely.
It should be noted that, described base 1 is not limited to one-body molded with eccentric shaft 2, it can also be fixed with one by the dismantled and assembled mode such as to be such as threaded, the advantage of dismantled and assembled mode is, adapt to different turning attachments, different bases 1 and eccentric shaft 2 can be used instead, can also ensure that the relative position between base 1 and eccentric shaft 2 remains unchanged simultaneously.Same, can be also dismantled and assembled relation between base 1 and two positioning pin columns, repeat no more here.
When base 1 radial dimension is greater than excircle dimension to be processed, the end face arranging two described positioning pin columns of described base 1 also needs to arrange the first boss 1-2.This end face center that described first boss 1-2 is arranged at base 1 is outwards not more than the scope of smooth block cylindrical (containing excircle configuration) to be processed.Described first boss 1-2 top contacts with smooth block end face, with bowlder outside processing smooth block for cutter is by out position.Described first boss 1-2 is can for identical with smooth block radial dimension cylindrical, and it also can be several equally distributed several small embossments.
For better by fastening for smooth block blank to be processed, technological equipment can also include pressing plate, and as shown in Figure 4, pressing plate 5 is half oblate cylinder, corresponding the position of positioning pin column is provided with two through holes thereon: the first through hole 5-3a and 5-3b.During use, as depicted in figs. 1 and 2, smooth block 6 is socketed on two positioning pin columns of technological equipment, and an end face of smooth block 6 is contacted with base 1; Then by pressing plate 5 by the opposite side noose of smooth block on positioning pin column, and then by the outside of bolt 4 clamping platen 5.By arranging this pressing plate 5, the thrust of bolt 4 pairs of smooth blocks can be made evenly distribute and put on smooth block.
Correspondingly on described pressing plate 5 be also provided with cutter relieving through hole 5-1 with the position of tool bore 1-1 that allows of base 1, the size of cutter relieving through hole 5-1 is not less than the aperture size of eccentric orfice on smooth block to be processed.
The outline of described pressing plate 5 does not generally exceed outside the excircle configuration of smooth block to be processed, to avoid affecting the processing of cutter to smooth block cylindrical; Certainly, when pressing plate 5 outline is larger, need to arrange as second boss (not shown) of the first boss 1-2 on base 1 at pressing plate 5 towards the side of smooth block, second boss is arranged at the region not exceeding this smooth block excircle configuration, set-up mode can identical with the first described boss 1-2 the two there is identical effect.
In addition, pressing plate 5 can also arrange balance weight as required, when processing eccentric circular hole, equilibrium centrifugation power.
Described pressing plate 5 is not limited to the shape shown in Fig. 4, and it can also have other shape, such as square, oval etc.
When utilizing the technological equipment processing smooth block of embodiments of the invention, first on smooth block blank, form two dowel holes.Then, the dowel hole of two on smooth block blank is inserted in two positioning pin columns of the base 1 of this technological equipment, fix with bolt or as shown in Figure 1, with pressing plate 5 and bolt 4, smooth block is fixed.At the outer bowlder of processing smooth block, the periphery (i.e. outer peripheral face) of holder base 1, and when processing smooth block eccentric orfice, holder eccentric shaft, the cylindrical axis of the smooth block of such processing overlaps with base axis, and the eccentric orfice axis of smooth block overlaps with eccentric shaft axis.Thus ensure that the precision of the eccentric throw of smooth block eccentric orfice, meanwhile, due in process, be two dowel hole location all the time, also ensure that the precision of dowel hole relative to phase position and size relationship between smooth block cylindrical and eccentric orfice.Make the smooth block applying the processing of this technological equipment when being assembled into circular slider set in 180 phase differences, the eccentric throw of eccentric orfice can not because of the problem adjusting turnback angle that secundly then occurs.And apply this technological equipment and can process smooth block on engine lathe, can not manufacturing cost be increased.Fig. 5 shows the structural representation of the smooth block 6 utilizing technological equipment of the present invention to process, add man-hour, on this smooth block, dowel hole 6-3a and 6-3b inserts in positioning pin column 1-3a and 1-3b as shown in Figure 3 respectively, and eccentric circular hole 6-1 is after processing in eccentric shaft 2 axes coincide as shown in Figure 3.Further, other structures such as lightening grooves 6-2 and oil duct can be processed on smooth block 6, repeat no more here.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.