CN107932143B - Multi-component composite turning machining work die for crankshaft bearing cover and application method of multi-component composite turning machining work die - Google Patents
Multi-component composite turning machining work die for crankshaft bearing cover and application method of multi-component composite turning machining work die Download PDFInfo
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- CN107932143B CN107932143B CN201711421051.1A CN201711421051A CN107932143B CN 107932143 B CN107932143 B CN 107932143B CN 201711421051 A CN201711421051 A CN 201711421051A CN 107932143 B CN107932143 B CN 107932143B
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- crankshaft bearing
- hydraulic lifting
- turning
- surface contact
- contact supporting
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- 238000007514 turning Methods 0.000 title claims abstract description 111
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000003754 machining Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 7
- 238000003825 pressing Methods 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
Abstract
The invention relates to a multi-component composite turning work die for a crankshaft bearing cover, which not only can clamp and turn a plurality of crankshaft bearing covers at one time, but also is quick and accurate in clamping of the crankshaft bearing covers, and is convenient to operate. The advantages are that: firstly, the labor and time are saved for the working mould, and the production quality and the production efficiency can be greatly improved; secondly, the workpiece is positioned by adopting the diamond-shaped positioning pins and the surface contact supporting strips and is tightly pressed by the hydraulic lifting plates, so that the workpiece is fast, stable and accurate in clamping and convenient and fast to operate.
Description
Technical Field
The invention relates to a multi-component composite turning working die for a crankshaft bearing cover, which not only can clamp and turn a plurality of crankshaft bearing covers at one time, but also is quick and accurate in clamping of the crankshaft bearing covers, and is convenient to operate, and a use method of the multi-component composite turning working die, and belongs to the field of manufacturing equipment of the crankshaft bearing covers.
Background
The crankshaft bearing cap is an important accessory of the engine, and one important index for measuring the damage of the crankshaft bearing cap is roundness error of the arc-shaped groove of the crankshaft bearing cap, and the arc-shaped groove of the existing crankshaft bearing cap is processed on a common lathe (the lathe is an existing common processing device and is a lathe for turning a rotating workpiece by using a turning tool). The defects are that: firstly, a lathe can only process one crankshaft bearing cover at a time, which is labor-and time-consuming and has low production efficiency; the second machining process is complicated, multiple times of tool changing are needed to carry out turning treatment on the crankshaft bearing cover, the roundness error of the arc-shaped groove of the crankshaft bearing cover is seriously affected by errors generated by the multiple times of tool changing, and in addition, an operator is required to have a exquisite technology for machining a high-precision workpiece of an ordinary lathe, and the factors seriously restrict the production qualification rate and the production efficiency of the crankshaft bearing cover; and thirdly, the energy consumption is high, so that the production cost of the crankshaft bearing cover is further increased.
Disclosure of Invention
The design purpose is as follows: in order to avoid the defects in the background art, the multi-component composite turning work die for the crankshaft bearing covers is designed, so that the multiple crankshaft bearing covers can be clamped and turned at one time, the clamping of the crankshaft bearing covers is quick and accurate, and meanwhile, the operation is convenient.
The design scheme is as follows: to achieve the above design objective. 1. The design that the upper end surface of the fixed base is transversely provided with two surface contact supporting strip sides is one of the technical characteristics of the invention. The purpose of this design is: the upper end surface of the fixed base is transversely provided with two surface contact supporting strip sides, the upper end surface of the surface contact supporting strip is provided with a plurality of workpiece positioning pins, and when the hydraulic lifting device is used, two rows of hydraulic lifting plates are lifted upwards; then, a plurality of crankshaft bearing covers to be processed are respectively arranged between the two surface contact supporting strips in a two-surface contact way through the lower end surfaces of lugs on two sides of the crankshaft bearing covers and the upper end surfaces of the two surface contact supporting strips, and through holes on the lugs are in plug-in fit with workpiece positioning pins on the surface contact supporting strips when the lugs on the crankshaft bearing covers are in surface contact with the surface contact supporting strips; finally, the two rows of hydraulic lifting plates are lowered to enable the lower end faces of the pressing plates in the hydraulic lifting plates to press the upper end faces of the corresponding crankshaft bearing covers, so that the rapid and accurate clamping of the crankshaft bearing covers is realized, the precision of subsequent turning of the crankshaft bearing covers is guaranteed, and the production and processing efficiency (at least 5 times of efficiency) of the crankshaft bearing covers is improved. 2. The design that the composite turning tool transversely passes through the semicircular groove is a second technical feature of the invention. The purpose of this design is: the multi-component composite turning work die for the crankshaft bearing cover can be matched with an existing lathe for use, when the composite turning work die is installed, the fixed base is firstly installed on the slide carriage box of the lathe, then the composite turning tool is installed between the chuck and the tail frame center of the lathe, the composite turning tool transversely passes through the semicircular groove, the central line of the circular cutter bar in the composite turning tool coincides with the central line of the semicircular groove, the composite turning tool rotates around the central line of the circular cutter bar under the transmission of the lathe spindle box, the slide carriage box can drive the fixed base to move forwards and backwards along the central line of the circular cutter bar under the driving of manpower or a motor (namely, turning is carried out on the concave arc-shaped wall surfaces of the crankshaft bearing cover by using the rotating turning tool), and thus the blades on the composite turning tool can finish turning the concave arc-shaped wall surfaces of the plurality of crankshaft bearing covers at one time along with the movement of the slide carriage box; in addition, the cross section of the semicircular groove is semicircular, so that scraps generated by the composite turning tool when turning the crankshaft bearing cover can slide to the bottom of the groove along the arc-shaped groove wall and are discharged out of the semicircular groove through side ports on two sides of the semicircular groove, and the influence on machining caused by scrap iron accumulation is avoided. 3. The design that a plurality of hydraulic lifting plates arranged at the upper end of the surface contact supporting strip are arranged in a shape of a Chinese character '1', two workpiece positioning pins are correspondingly arranged under a pressing plate in each hydraulic lifting plate, and the two workpiece positioning pins are positioned at two sides of a hydraulic lifting rod in the hydraulic lifting plate is the third technical feature of the invention. The purpose of this design is: the surface contact supporting strip is characterized in that a plurality of hydraulic lifting plates arranged at the upper end of the surface contact supporting strip are arranged in a shape of a Chinese character '1', two workpiece positioning pins are correspondingly arranged under a pressing plate in each hydraulic lifting plate, the two workpiece positioning pins are positioned on two sides of a hydraulic lifting rod in the hydraulic lifting plate, the hydraulic lifting rod and the pressing plate are arranged in a T shape, namely, a pair of hydraulic lifting plates can simultaneously press two crankshaft bearing covers (the arrangement of a pressing device is reduced), so that the structure of a working die is simplified, the working efficiency of the pressing device is improved, and meanwhile, the use of energy is reduced. 4. The cross section of the workpiece positioning pin is diamond-shaped, and the workpiece positioning pin is a fourth technical feature of the invention. The purpose of this design is: the cross section of the workpiece locating pin is diamond-shaped, and the diamond-shaped workpiece locating pin can reduce contact friction force when the workpiece locating pin is in plug-in fit with a through hole on a lug of the crankshaft bearing cover, so that the crankshaft bearing cover is located and installed in a time-saving and labor-saving mode. 5. The design of the composite turning tool consists of a circular cutter bar, a rough turning blade, a semi-finish turning blade and a finish turning blade is fifth of the technical characteristics of the invention. The purpose of this design is: the composite turning tool comprises a circular cutter bar, a rough turning blade, a semi-finish turning blade and a finish turning blade, when the composite turning tool turns a crankshaft bearing cover, the rough turning blade, the semi-finish turning blade and the finish turning blade turn the concave circular arc-shaped wall surface of the crankshaft bearing cover in sequence, the roundness error of the concave circular arc-shaped surface of the crankshaft bearing cover subjected to three times of turning can be controlled within 0.02mm, and meanwhile, the crankshaft bearing cover is turned successively through three blades, so that the stability of the use of the blades can be ensured, and the whole service life of the blades can be prolonged; in addition, because the outer circular surface of the circular cutter bar is sequentially provided with the rough turning blade mounting hole, the semi-finish turning blade mounting hole and the finish turning blade mounting hole from first to last according to the turning sequence, the rough turning blade is arranged in the turning blade mounting hole, the semi-finish turning blade is arranged in the semi-finish turning blade mounting hole, and the finish turning blade is arranged in the finish turning blade mounting hole, the time required by tool changing can be saved, and in addition, the precision error caused by tool changing can be avoided.
Technical scheme 1: the utility model provides a compound turning worker mould of bent axle bearing cap multicomponent, includes unable adjustment base and compound lathe tool, unable adjustment base up end transversely opens and has semi-circular recess and semi-circular recess to link up unable adjustment base both sides terminal surface, unable adjustment base up end transversely is equipped with two face contact supporting strips and two face contact supporting strips are located semi-circular recess notch both sides, face contact supporting strip up end is equipped with a plurality of work piece locating pins and face contact supporting strip upper end and is equipped with a plurality of hydraulic lifting plates, the centre line of circular cutter bar coincides with the centre of a circle line of semi-circular recess in the compound lathe tool of compound lathe tool transverse passage semi-circular recess and the radius of the rotary track radius of finish turning blade is less than semi-circular recess in compound lathe tool when compound lathe tool is rotatory around circular cutter bar centre line.
Technical scheme 2: the use method of the multi-component composite turning work die of the crankshaft bearing cover comprises the steps of firstly, lifting two rows of hydraulic lifting plates upwards; then, a plurality of crankshaft bearing covers to be processed are respectively arranged between the two surface contact supporting strips in a two-surface contact way through the lower end surfaces of lugs on two sides of the crankshaft bearing covers and the upper end surfaces of the two surface contact supporting strips, and through holes on the lugs are in plug-in fit with workpiece positioning pins on the surface contact supporting strips when the lugs on the crankshaft bearing covers are in surface contact with the surface contact supporting strips; and finally, the two rows of hydraulic lifting plates are lowered to enable the lower end faces of the pressing plates in the hydraulic lifting plates to press the upper end faces of the corresponding crankshaft bearing covers, so that a plurality of crankshaft bearing covers can be clamped rapidly and accurately.
Compared with the background technology, the multi-component composite turning machining die for the crankshaft bearing cover is labor-saving and time-saving, and can greatly improve the production quality and the production efficiency; secondly, the crankshaft bearing cover is positioned by adopting the diamond-shaped positioning pins and the surface contact supporting strips and is pressed by the hydraulic lifting plates, so that the shaft bearing cover is fast, stable and accurate in clamping and convenient and rapid in operation.
Drawings
FIG. 1 is a schematic diagram of a multi-component composite turning tooling die for a crankshaft bearing cap.
Fig. 2 is a schematic structural view of a multi-component composite turning tooling die (clamping crankshaft bearing caps) for crankshaft bearing caps.
Detailed Description
Example 1: reference is made to figures 1 and 2. The utility model provides a compound lathe work worker mould of bent axle bearing cap multicomponent, includes unable adjustment base 1 and compound lathe tool 2, unable adjustment base 1 up end transversely opens and has semi-circular recess 11 and semi-circular recess 11 link up unable adjustment base 1 both sides terminal surface, unable adjustment base 1 up end transversely is equipped with two face contact supporting bars 3 and two face contact supporting bars 3 are located semi-circular recess 11 notch both sides, face contact supporting bar 3 up end is equipped with a plurality of work piece locating pins 4 and face contact supporting bar 3 upper end is equipped with a plurality of hydraulic lifting plates 5, the centre line of circular cutter arbor 21 in compound lathe tool 2 transverse passage semi-circular recess 11 and compound lathe tool 2 coincides with the centre line of semi-circular recess 11 and the radius of semi-circular recess 11 of the rotatory orbit (the orbit of finish turning blade 24 is circular) of finish turning blade 24 in compound lathe tool 2 when compound lathe tool 2 rotates around circular cutter arbor 21 centre line. The plurality of hydraulic lifting plates 5 arranged at the upper end of the surface contact supporting strip 3 are arranged in a shape of a Chinese character '1', two workpiece positioning pins 4 are correspondingly arranged right below the pressing plate 52 in each hydraulic lifting plate 5, and the two workpiece positioning pins 4 are positioned at two sides of the hydraulic lifting rod 51 in the hydraulic lifting plate 5. The hydraulic lifting plate 5 comprises a hydraulic lifting rod 51 and a pressing plate 52, wherein the hydraulic lifting rod 51 and the pressing plate 52 are arranged in a T shape, and the pressing plate 52 is fixed at the upper end of the hydraulic lifting rod 51. The cross section of the workpiece positioning pin 4 is diamond-shaped. The composite turning tool 2 is composed of a circular cutter bar 21, a rough turning blade 22, a half fine turning blade 23 and a fine turning blade 24, wherein a rough turning blade mounting hole 25, a half fine turning blade mounting hole 26 and a fine turning blade mounting hole 27 are sequentially formed in the outer circular surface of the circular cutter bar 21 from front to back in turning sequence, the rough turning blade 22 is installed in the rough turning blade mounting hole 25, the half fine turning blade 23 is installed in the half fine turning blade mounting hole 26, and the fine turning blade 24 is installed in the fine turning blade mounting hole 27; the radius of the rotation locus of the rough turning blade 22 (the rotation locus of the rough turning blade 22 is circular) is smaller than the radius of the rotation locus of the semi-finishing turning blade 23 (the rotation locus of the semi-finishing turning blade 23 is circular), and the radius of the rotation locus of the semi-finishing turning blade 23 is smaller than the radius of the rotation locus of the finishing turning blade 24. The rough turning blade mounting hole 25, the semi-finish turning blade mounting hole 26 and the finish turning blade mounting hole 27 are arranged on the outer surface of the circular cutter bar 21 in a straight line, and the straight line is parallel to the center line of the circular cutter bar 21. Two mounting holes 12 are respectively formed in two sides of the fixed base 1.
The multi-component composite turning work die for the crankshaft bearing cover can be matched with an existing lathe for use, during installation, the fixing base 1 is firstly installed on a slide carriage box of the lathe, then the composite turning tool 2 is installed between a chuck and a tail frame center of the lathe, the composite turning tool 2 transversely passes through the semicircular groove 11, the center line of a circular cutter bar 21 in the composite turning tool 2 coincides with the center line of the semicircular groove 11, the composite turning tool 2 rotates around the center line of the circular cutter bar 21 under the transmission of a lathe spindle box, and the slide carriage box can drive the fixing base 1 to move back and forth along the center line of the circular cutter bar 21 under the driving of manpower or a motor.
Example 2: on the basis of example 1. The use method of the multi-component composite turning work die of the crankshaft bearing cover comprises the steps of firstly, lifting two rows of hydraulic lifting plates 5 upwards; then, a plurality of crankshaft bearing caps to be processed are respectively arranged between the two surface contact supporting strips 3 through the two surface contact of the lower end surfaces of lugs on two sides of the crankshaft bearing caps and the upper end surfaces of the two surface contact supporting strips 3, and through holes on the lugs are in plug-in fit with workpiece positioning pins 4 on the surface contact supporting strips 3 when the lugs on the crankshaft bearing caps are in surface contact with the surface contact supporting strips 3; finally, the two rows of hydraulic lifting plates 5 are lowered to enable the lower end faces of the pressing plates 52 in the hydraulic lifting plates 5 to press the upper end faces of the corresponding crankshaft bearing covers, so that a plurality of crankshaft bearing covers can be clamped rapidly and accurately. The crankshaft bearing cap is longitudinally arranged between two surface contact supporting strips 3.
It should be understood that: although the above embodiments describe the design concept of the present invention in more detail, these descriptions are merely descriptions of the design concept of the present invention, and not limitations on the design concept of the present invention, and any combination, addition or modification not exceeding the design concept of the present invention falls within the scope of the present invention.
Claims (5)
1. The utility model provides a compound lathe work worker mould of bent axle bearing cap multicomponent, includes unable adjustment base (1) and compound lathe tool (2), characterized by: the automatic lifting device is characterized in that a semicircular groove (11) is transversely formed in the upper end face of the fixed base (1) and penetrates through the end faces of two sides of the fixed base (1), two surface contact supporting strips (3) are transversely arranged on the upper end face of the fixed base (1) and located on two sides of a notch of the semicircular groove (11), a plurality of workpiece locating pins (4) are arranged on the upper end face of the surface contact supporting strip (3) and a plurality of hydraulic lifting plates (5) are arranged at the upper end of the surface contact supporting strip (3), the plurality of hydraulic lifting plates (5) arranged at the upper end of the surface contact supporting strip (3) are arranged in a shape of a '1', two workpiece locating pins (4) are correspondingly arranged under a pressing plate (52) in each hydraulic lifting plate (5), and the two workpiece locating pins (4) are located on two sides of a hydraulic lifting rod (51) in the hydraulic lifting plate (5); the cross section of the workpiece positioning pin (4) is diamond-shaped; the composite turning tool (2) transversely passes through the semicircular groove (11), the center line of the circular cutter bar (21) in the composite turning tool (2) coincides with the center line of the semicircular groove (11), and the radius of the rotating track of the finish turning blade (24) in the composite turning tool (2) is smaller than the radius of the semicircular groove (11) when the composite turning tool (2) rotates around the center line of the circular cutter bar (21); the using method of the multi-component composite turning machining working die for the crankshaft bearing cover comprises the following steps: firstly, lifting two rows of hydraulic lifting plates (5) upwards; then, a plurality of crankshaft bearing covers to be processed are respectively arranged between the two surface contact supporting strips (3) through the two surface contact of the lower end surfaces of lugs on two sides of the crankshaft bearing covers and the upper end surfaces of the two surface contact supporting strips (3), and through holes on the lugs are in plug-in fit with workpiece positioning pins (4) on the surface contact supporting strips (3) when the lugs on the crankshaft bearing covers are in surface contact with the surface contact supporting strips (3); the crankshaft bearing cover is longitudinally arranged between the two surface contact supporting strips (3); and finally, the two rows of hydraulic lifting plates (5) are lowered to enable the lower end surfaces of the pressing plates (52) in the hydraulic lifting plates (5) to press the upper end surfaces of the corresponding crankshaft bearing covers, so that the rapid and accurate clamping of the crankshaft bearing covers is realized.
2. The crankshaft bearing cap multi-component composite turning mold of claim 1, wherein: the hydraulic lifting plate (5) comprises a hydraulic lifting rod (51) and a pressing plate (52), wherein the hydraulic lifting rod (51) and the pressing plate (52) are arranged in a T shape, and the pressing plate (52) is fixed at the upper end of the hydraulic lifting rod (51).
3. The crankshaft bearing cap multi-component composite turning mold of claim 1, wherein: the combined turning tool (2) comprises a circular cutter bar (21), a rough turning blade (22), a semi-finish turning blade (23) and a finish turning blade (24), wherein rough turning blade mounting holes (25), semi-finish turning blade mounting holes (26) and finish turning blade mounting holes (27) are sequentially formed in the outer circular surface of the circular cutter bar (21) from front to back in turn, rough turning blades (22) are mounted in the rough turning blade mounting holes (25), semi-finish turning blades (23) are mounted in the semi-finish turning blade mounting holes (26), and finish turning blades (24) are mounted in the finish turning blade mounting holes (27).
4. A crankshaft bearing cap multi-component composite turning mold as set forth in claim 3, wherein: the rough turning blade mounting hole (25), the semi-finish turning blade mounting hole (26) and the finish turning blade mounting hole (27) are arranged on the outer surface of the circular cutter bar (21) in a straight line, and the straight line is parallel to the central line of the circular cutter bar (21).
5. The crankshaft bearing cap multi-component composite turning mold of claim 1, wherein: two sides of the fixed base (1) are respectively provided with two mounting holes (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421051.1A CN107932143B (en) | 2017-12-25 | 2017-12-25 | Multi-component composite turning machining work die for crankshaft bearing cover and application method of multi-component composite turning machining work die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421051.1A CN107932143B (en) | 2017-12-25 | 2017-12-25 | Multi-component composite turning machining work die for crankshaft bearing cover and application method of multi-component composite turning machining work die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107932143A CN107932143A (en) | 2018-04-20 |
| CN107932143B true CN107932143B (en) | 2023-11-10 |
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| CN201711421051.1A Active CN107932143B (en) | 2017-12-25 | 2017-12-25 | Multi-component composite turning machining work die for crankshaft bearing cover and application method of multi-component composite turning machining work die |
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| Publication number | Publication date |
|---|---|
| CN107932143A (en) | 2018-04-20 |
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