CN103331660A - Fine processing mold for shoe side of main bearing cap of diesel engine - Google Patents
Fine processing mold for shoe side of main bearing cap of diesel engine Download PDFInfo
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- CN103331660A CN103331660A CN2013102753720A CN201310275372A CN103331660A CN 103331660 A CN103331660 A CN 103331660A CN 2013102753720 A CN2013102753720 A CN 2013102753720A CN 201310275372 A CN201310275372 A CN 201310275372A CN 103331660 A CN103331660 A CN 103331660A
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Abstract
The invention relates to a fine processing mold for a shoe side of a main bearing cap of a diesel engine. The section of a bottom plate is an inverted-n-shaped. Positioning blocks are arranged on the rail surfaces of the mold. The positioning blocks among main bearing caps to be processed are wedge block structures. At least two main bearing caps which are spaced by the positioning blocks, have an upward concave surface and are to be processed are fixed on the bottom plate through I-shaped pressing plates and bolts. The fine processing mold has the advantages that the goal of processing multiple main bearing caps is realized through one-step clamping, and not only can the processing quality be guaranteed, but also the efficiency can be improved.
Description
Technical field
The present invention relates to a kind of diesel engine main bearing cover tile side fine finishining mold, belong to the Machining Technology field.
Background technology
In medium seed diesel engine, main beating cap and support are assembled, and bent axle rotates therein, and the power of diesel engine is exported parts such as also direct or indirect driving valve actuating mechanism, injection pump, lubricating oil pump, water pump by base bearing.Main beating cap suffered horizontal cross component force when work makes it that mobile trend be arranged, and can cause when serious that axis hole loses circle or Main bearing bolt produces additional bending stress, influences the main bearing hole operate as normal.Therefore to carry out fine finishining be very important in the side end face that main beating cap is directly made progress.Present processing method is with cylindrical grinder the main beating cap of whole component parts for assembly of a machine to be carried out grinding, make main beating cap both sides consistent size, but this kind processing method is limited by the allowance of workpiece, grinding machine is applicable to the product that allowance is less, the product efficiency bigger to allowance is low, cost is high, is not suitable for the versatility of converted products.And existing cylindrical grinder stroke is little, and excess of stroke phenomenon appears in the disposable trade union that adds, and can't satisfy the processing needs.The method that perhaps adopts machining spindle one by one to hold lid, processing back measuring spindle holds lid and support watt mouth size, and both cooperatively interact, and fit dimension main beating cap devious is ground.Because base bearing cover tile precision prescribed height in process, single-piece work need be carried out multiple clamping, and multiple clamping has error and exists, machine tooling itself also has micro-error, this will produce cumulative errors to workpiece, influence the workpiece crudy, can not guarantee consistency of product.Because base bearing cover tile and body assembly precision class requirement height, this will directly cause base bearing cover tile percent defective height and inefficiency.
Summary of the invention
Purpose of the present invention overcomes the deficiency of above-mentioned prior art exactly, and a kind of diesel engine main bearing cover tile side fine finishining mold is provided, and realizes processing a plurality of main beating cap by a clamping, not only can guarantee crudy and can raise the efficiency.
The object of the present invention is achieved like this: a kind of diesel engine main bearing cover tile side fine finishining mold, it is characterized in that a cross section is the base plate of the type of falling ∏, its rail level is provided with locating piece, by I shape pressing plate and bolt isolated at least two the concave upright main beating cap to be processed of locating piece is fixed on the base plate.
In order to realize purpose of the present invention better, the locating piece between the described main beating cap to be processed is wedge structure.
Technical scheme of the present invention, the application point of clamping force is positioned on the supporting plane of support component, and supporting plane has rigidity preferably, the strong point is near finished surface, can reduce cutting force like this to the moment of clamping point, the clamping force application point keeps the stable of workpiece, can prevent that workpiece from producing displacement, vibration or flexural deformation.The employing of wedge locating block makes main beating cap simple, convenient locking structure the downward clamping force that tight power is changed over to Y-direction; Improved the frictional force of voussoir and workpiece, remedying the workpiece directions X with frictional force does not have location defect; The stroke of Wedge-type clamping device is little, is conducive to shorten mold length, reduces workpiece and add thin space, improves the workpiece to be processed rigidity, reduces the processing dimension error.By I shape pressing plate and bolt workpiece is fastened on the mold, utilize the workpiece self structure with strong point design workpiece originally on one's body, simplify and praise structure, the loaded down with trivial details property of reduction execute-in-place.
Description of drawings
Fig. 1 is embodiment of the invention diesel engine main bearing cover tile side fine finishining mold principle schematic.
Fig. 2 is embodiment of the invention workpiece three-dimensional coordinate schematic diagram.
Fig. 3 is the stressed schematic diagram of embodiment of the invention Work-sheet pressing.
Be labeled as among the figure: 1-base plate, 2-rail level, 3-locating piece, 4-workpiece, 5-wedge locating block, the I-shaped pressing plate of 6-, 7-bolt, 8-machined surface.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Referring to Fig. 1, Fig. 2 and Fig. 3 in detail, the diesel engine main bearing cover tile side fine finishining mold of present embodiment is described in detail.The diesel engine main bearing cover tile side fine finishining mold of present embodiment, the cross section of its base plate 1 is the type of falling ∏ structure.The rail level 2 of base plate is provided with locating piece 3, and workpiece to be processed 4 is concave upright to be placed on the double track of base plate.Locating piece between workpiece is wedge locating block 5, with the workpiece jam-packed.I shape pressing plate 6 and bolt 7 are fixed in workpiece to be processed 4 on the base plate 1.Two sides that the machined surface 8 of workpiece makes progress for the footpath.
Determining of the direction of clamping force
Workpiece 4 has six-freedom degree in clamping, each free degree restriction one direction moves, clamping force action direction principle should make datum level contact with setting element, reliable to guarantee workpiece 4 location benchmark, consider main beating cap each to be processed, and anchor clamps can not influence the processing of surface of the work, so adopt the not exclusively locate mode of location, directions X is not set bit unit and limited it and move.For guaranteeing that workpiece finishes all processing in a clamping process, adopt wedge type locating piece 5 clamping work pieces 4, the inclined-plane that namely utilizes voussoir changes the thrust of voussoir into clamping force, thereby comes clamping work pieces 4.
Determining of clamping force application point
The clamping force application point should keep the stable of workpiece 4, prevent that workpiece 4 from producing displacement and vibration, so the application point of clamping force should be positioned on the supporting plane of support component, and supporting plane should have rigidity preferably, and the strong point should be as much as possible near finished surface, cutting force be can reduce like this to the moment of clamping point, processing vibration or the flexural deformation of workpiece prevented.
Consider that structure and the directions X of base bearing cover tile do not set the position, the application point of clamping force is located at the position of as close as possible finished surface, workpiece can be subjected to the vertical cutting force of directions X in process, cutting force will produce moment, make workpiece at directions X mobile trend be arranged, by moment formula M=FL be moment=power * arm of force as can be known, when power arm of force under constant situation more little, moment is more little, the power that workpiece is subjected to directions X is just more little, so the position of clamping force application point is located at position shown in the arrow among Fig. 2, by the Wedge-type clamping means, the frictional force that clamps with voussoir and workpiece can be offset workpiece fully and be subjected to capablely at directions X, guarantees that workpiece clamps in the location of directions X.
Focus on the impetus of directions X horizontal pressure foot, make each suffered power of workpiece reach poised state with the stressed principle of triangle, form isosceles triangle by two anchor points and main beating cap semicircle center, main beating cap semicircle center is applied downward power, learn that through stressed analysis triangle and main beating cap semicircle joining are the horizontal pressure foot stress point, make each component reach poised state as shown in Figure 3.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (2)
1. diesel engine main bearing cover tile side fine finishining mold, it is characterized in that a cross section is the base plate of the type of falling ∏, its rail level is provided with locating piece, by I shape pressing plate and bolt isolated at least two the concave upright main beating cap to be processed of locating piece is fixed on the base plate.
2. diesel engine main bearing cover tile side fine finishining mold according to claim 1 is characterized in that the locating piece between the described main beating cap to be processed is wedge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102753720A CN103331660A (en) | 2013-07-01 | 2013-07-01 | Fine processing mold for shoe side of main bearing cap of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102753720A CN103331660A (en) | 2013-07-01 | 2013-07-01 | Fine processing mold for shoe side of main bearing cap of diesel engine |
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| CN103331660A true CN103331660A (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102753720A Pending CN103331660A (en) | 2013-07-01 | 2013-07-01 | Fine processing mold for shoe side of main bearing cap of diesel engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604588A (en) * | 2013-10-30 | 2014-02-26 | 无锡市海航电液伺服系统有限公司 | Damper variable-length loading frame |
| CN104227458A (en) * | 2014-08-12 | 2014-12-24 | 昆山勇翔精密机械有限公司 | Multi-station self-centering rotary clamp for bearing cap |
| CN104354107A (en) * | 2014-12-05 | 2015-02-18 | 中国重汽集团济南复强动力有限公司 | Compressing device for remanufacturing crankcase |
| CN104400635A (en) * | 2014-11-11 | 2015-03-11 | 芜湖市爱德运输机械有限公司 | Edge grinding machine clamping tool |
| CN107139074A (en) * | 2017-07-13 | 2017-09-08 | 胡俊 | A kind of push sanding apparatus for the later half wheel bearing processing of automobile |
Citations (5)
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| SU1289646A1 (en) * | 1985-05-06 | 1987-02-15 | Производственное Объединение "Ворошиловградский Тепловозостроительный Завод Им.Октябрьской Революции" | Device for positioning and rotating work |
| CN202212776U (en) * | 2011-07-07 | 2012-05-09 | 上海万泰汽车零部件有限公司 | Clamp for processing bearing cover on milling machine |
| CN202701855U (en) * | 2012-06-11 | 2013-01-30 | 长春轨道客车股份有限公司 | Upward operation inner centering mechanism |
| CN202846211U (en) * | 2012-05-30 | 2013-04-03 | 东南大学 | Combination fixture special for machining keyways of shafts |
| CN203003554U (en) * | 2012-12-13 | 2013-06-19 | 江苏万富安机械有限公司 | Angle square groove planer milling fixture |
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- 2013-07-01 CN CN2013102753720A patent/CN103331660A/en active Pending
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| SU1289646A1 (en) * | 1985-05-06 | 1987-02-15 | Производственное Объединение "Ворошиловградский Тепловозостроительный Завод Им.Октябрьской Революции" | Device for positioning and rotating work |
| CN202212776U (en) * | 2011-07-07 | 2012-05-09 | 上海万泰汽车零部件有限公司 | Clamp for processing bearing cover on milling machine |
| CN202846211U (en) * | 2012-05-30 | 2013-04-03 | 东南大学 | Combination fixture special for machining keyways of shafts |
| CN202701855U (en) * | 2012-06-11 | 2013-01-30 | 长春轨道客车股份有限公司 | Upward operation inner centering mechanism |
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| 叶俊勇 等: "高效销轴铣扁V型槽夹具和刀具设计", 《机械工程师》, no. 3, 31 March 2009 (2009-03-31) * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604588A (en) * | 2013-10-30 | 2014-02-26 | 无锡市海航电液伺服系统有限公司 | Damper variable-length loading frame |
| CN103604588B (en) * | 2013-10-30 | 2018-06-05 | 无锡市海航电液伺服系统股份有限公司 | Damper becomes length loading frame |
| CN104227458A (en) * | 2014-08-12 | 2014-12-24 | 昆山勇翔精密机械有限公司 | Multi-station self-centering rotary clamp for bearing cap |
| CN104400635A (en) * | 2014-11-11 | 2015-03-11 | 芜湖市爱德运输机械有限公司 | Edge grinding machine clamping tool |
| CN104354107A (en) * | 2014-12-05 | 2015-02-18 | 中国重汽集团济南复强动力有限公司 | Compressing device for remanufacturing crankcase |
| CN107139074A (en) * | 2017-07-13 | 2017-09-08 | 胡俊 | A kind of push sanding apparatus for the later half wheel bearing processing of automobile |
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Application publication date: 20131002 |