CN105798714A - Center bearing device for grinding of crankshaft main journal - Google Patents
Center bearing device for grinding of crankshaft main journal Download PDFInfo
- Publication number
- CN105798714A CN105798714A CN201610309969.6A CN201610309969A CN105798714A CN 105798714 A CN105798714 A CN 105798714A CN 201610309969 A CN201610309969 A CN 201610309969A CN 105798714 A CN105798714 A CN 105798714A
- Authority
- CN
- China
- Prior art keywords
- support arm
- grinding
- support
- longitudinal
- adjusting bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention provides a center bearing device for grinding of a crankshaft main journal. The center bearing device comprises an L-shaped bearing base, wherein a first support arm and a second support arm are arranged in the L-shaped bearing base; one end of the first support arm is movably connected to the L-shaped bearing base by a lower hinge pin, and a transverse bearing block is arranged at the other end of the first support arm; one end of the second support arm is movably connected to the L-shaped bearing base by an upper hinge pin, and a longitudinal bearing block is arranged at the other end of the second support arm; a first servo motor and a second servo motor are further arranged on the L-shaped bearing base; the first servo motor is connected with a transverse torque adjusting bolt which presses and touches the first support arm; the second servo motor is connected with a longitudinal torque adjusting bolt which presses and touches the second support arm; and the longitudinal bearing block and the transverse bearing block are on the same plane and form an included angle alpha. The center bearing device is simple in structure and convenient to operate, and can guarantee the grinding precision of the crankshaft journal and stabilize the process quality.
Description
Technical field
The present invention relates to the supporting arrangement of crankshaft grinding, be specifically related to a kind of main bearing journal grinding center supporting arrangement.
Background technology
Existing multi-cylinder crankshaft processing technology is planar end surface centering → milling trunnion rod journal → timeliness → corase grind trunnion corase grind rod journal → fine grinding main bearing journal → fine grinding rod journal.When this technique relates to longer bent axle, journal size precision need to reach IT6 level, axle journal circularity and cylindricity≤0.006, surface roughness≤0.4, axle journal beat≤0.04, and its technological requirement is significantly high.Conventional crankshafts axle journal grinding all adopts central liquid hydraulic support grinding, owing to machine tool hydraulic system is by the impact of the factors such as weather, oil temperature, control valve, process time, supporting pressure transient, thus causing the circularity of crankshaft journal, roughness and beating and do not reach requirement, it is difficult to ensure crankshaft quality.
Summary of the invention
The technical problem to be solved is to provide a kind of simple in construction, can ensure circularity and the cylindricity of crankshaft journal grinding, improves work efficiency, reduces the main bearing journal grinding center supporting arrangement of production cost.
For solving above-mentioned technical problem, one main bearing journal grinding center supporting arrangement of the present invention, including " L " shape support plinth, in described " L " shape support plinth, it is provided with the first support arm and the second support arm；Described first support arm one end is movably connected on " L " shape support plinth by lower bearing pin, and the described first support arm other end is provided with lateral support block；Described second support arm one end is movably connected on " L " shape support plinth by upper pin, and the other end of described second support arm is provided with longitudinal supporting block；Described " L " shape support plinth is additionally provided with the first servomotor, the second servomotor；Described first servomotor is connected to athwartship moment adjusting bolt, and described athwartship moment adjusting bolt pressure touches the first support arm；Described second servomotor is connected to longitudinal moment adjusting bolt, and described longitudinal moment adjusting bolt pressure touches the second support arm；Described longitudinal supporting block and lateral support block are in same plane and form angle α.During operation, being installed to by standard crankshaft on lathe and on two top tops, will control the first servomotor servo horizontal direction and move ahead, the first support arm rotates with lower bearing pin for fulcrum and contacts journal surface to lateral support block, and this position is horizontal zero-bit；Dial gauge indicator is directed at axle journal again and regulates athwartship moment adjusting bolt interference 0.03-0.05 millimeter rear tight bolt；Afterwards, control the second servomotor servo horizontal direction again to move ahead, second support arm rotates with upper pin for fulcrum and makes longitudinal supporting block contact journal surface with vertical direction, this position is longitudinal zero-bit, dial gauge indicator is directed at journal surface equally and regulates after longitudinal moment adjusting bolt interference 0.03-0.05 millimeter again and tight bolt；Aforesaid operations tries grinding defective products workpiece after completing, and unloads Work inspection device workpiece spindle roundness and axle journal is beated after workpiece axle journal rounding, should readjust the magnitude of interference of vertical and horizontal until grinding work piece is qualified as do not reached requirement.Adopt and two centre bearing devices during grinding six throw crankshaft of the present invention, need to be increased, support III, V trunnion respectively.The present invention arranges two supporting-points, horizontal and vertical component during grinding and workpiece gravity is born respectively with the adjustment of servomotor moment, when workpiece grinds hour gradually, centre bearing device has constant moment of force automatic tracking function, and additionally the present invention can also be set as constant moment of force position control.Ensure that grinding work piece axle journal circularity and cylindricity and intermediate journal beating to spindle axis line.
Preferably, described lower bearing pin is arranged on the base of " L " shape support plinth, and described upper pin is arranged on the side of " L " shape support plinth.It facilitates the first support arm and the second support arm to connect, and rationally distributed, operation is stable, efficient.
Preferably, described lateral support block and the first support arm, longitudinal supporting block and the second support arm are movably connected with.It is convenient for changing after its abrasion, it is ensured that axle journal mill pin precision.
To sum up, present configuration is simple, easy to operate, can ensure that the precision of crankshaft journal mill pin, process for stabilizing quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of duty of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated
As it is shown in figure 1, one main bearing journal grinding center supporting arrangement of the present invention, including " L " shape support plinth 300, in described " L " shape support plinth 300, it is provided with the first support arm 403 and the second support arm 503；Described first support arm 403 one end is movably connected on " L " shape support plinth 300 by lower bearing pin 402, and described first support arm 403 other end is provided with lateral support block 401；Described second support arm 503 one end is movably connected on " L " shape support plinth 300 by upper pin 502, and the other end of described second support arm 503 is provided with longitudinal supporting block 501；Described " L " shape support plinth 300 is additionally provided with first servomotor the 100, second servomotor 200；Described first servomotor 100 is connected to athwartship moment adjusting bolt 400, and described athwartship moment adjusting bolt 400 pressure touches the first support arm 403；Described second servomotor 200 is connected to longitudinal moment adjusting bolt 500, and described longitudinal moment adjusting bolt 500 pressure touches the second support arm 503；Described longitudinal supporting block 501 and lateral support block 401 are in same plane and form angle α.
Described lower bearing pin 402 is arranged on the base of " L " shape support plinth 300, and described upper pin 502 is arranged on the side of " L " shape support plinth 300.
Described lateral support block 401 and the first support arm 403, longitudinal supporting block 501 and the second support arm 503 are movably connected with.
The know-why of the present invention is: utilize first servomotor the 100, second servomotor 200 numerical control servo constant moment of force automatic tracking function, it is ensured that permanent supporting force horizontally and vertically, can constant force support from motion tracking at diameter of work mill hour.Utilize plane crank wabbler mechanism principle, it is achieved the first servomotor 100 moves horizontally to positive direction, promote the first support arm 403 to rotate centered by lower bearing pin 402, it is ensured that horizontal direction displacement supports；Utilizing plane crank wabbler mechanism principle, it is achieved the second servomotor 200 moves horizontally to positive direction, promote the second support arm 503 to rotate centered by upper pin 502, it is ensured that vertical direction displacement supports, after completing axle journal 700 supporting, abrasive grinding wheel 600 implements grinding.
Embodiment (Weihe River bavin WD615 crankshaft journal grinding)
Standard Weihe River bavin WD615 bent axle installs to lathe, two top pressures of grinding machine touch crankshaft end-face, control the first servomotor 100 axial positive direction of servo to move horizontally, first support arm 403 rotates to lateral support block 401 with lower bearing pin 402 and contacts journal surface, this position is transverse direction zero-bit, then and tight bolt dial gauge indicator is directed at axle journal and regulates athwartship moment adjusting bolt 400 interference 0.03-0.05 millimeter again, the second servomotor 200 servo axially pros are selected to move horizontally again, second support arm 503 rotates to longitudinal supporting block 501 along upper pin 502 and contacts journal surface, this position is longitudinal direction zero-bit, then and tight bolt ibid longitudinal moment adjusting bolt 500 interference 0.03-0.05 millimeter is adjusted with dial gauge.Aforesaid operations completes abrasive grinding wheel 600 to start to try grinding defective products workpiece, unloads inspection circularity and beat after axle journal 700 rounding of workpiece, should readjust the horizontal and vertical magnitude of interference until grinding work piece is qualified as do not reached requirement.
III, V trunnion need to be supported respectively with the present invention during grinding six throw crankshaft.
After adopting technique scheme, reach following beneficial effect:
1, axle journal 700 circularity and cylindricity improve 1 grade, and roughness can reach 0.2, axle journal 700 beat≤0.02, technological ability is guaranteed；All the time axle journal 700 cylindrical is held, it is possible to improve grinding accuracy and prevent the self-excited vibration of workpiece under job state of the present invention.
2, improve grinding work efficiency, reduce production cost.After adopting the present invention, leave fine grinding grinding allowance 0.8-0.9 millimeter for, roughly grind allowance 1.2-1.5 millimeter, be the 70% of former coarse-fine mill surplus；Corase grind work efficiency improves 15%, and fine grinding work efficiency improves 30%.The former technique corase grind time is 600 seconds according to statistics, single-piece corase grind 9.6 yuan/root of production cost；The former technique fine grinding time is 1200 seconds, single-piece fine grinding 14.2 yuan/root of production cost；And after adopting the present invention, single-piece is thick, 5.7 yuan/root can drop in fine grinding production cost, relevant enterprise is applied, economic benefits.
From this, the present invention coordinates with existing crank shaft grinding machine, can ensure the quality of product while improving work efficiency, reducing production cost.
Claims (3)
1. a main bearing journal grinding center supporting arrangement, including " L " shape support plinth (300), it is characterised in that: it is provided with the first support arm (403) and the second support arm (503) in described " L " shape support plinth (300)；Described first support arm (403) one end is movably connected on " L " shape support plinth (300) by lower bearing pin (402), and described first support arm (403) other end is provided with lateral support block (401)；Described second support arm (503) one end is movably connected on " L " shape support plinth (300) by upper pin (502), and the other end of described second support arm (503) is provided with longitudinal supporting block (501)；Described " L " shape support plinth (300) are additionally provided with the first servomotor (100), the second servomotor (200)；Described first servomotor (100) is connected to athwartship moment adjusting bolt (400), and described athwartship moment adjusting bolt (400) pressure touches the first support arm (403)；Described second servomotor (200) is connected to longitudinal moment adjusting bolt (500), and described longitudinal moment adjusting bolt (500) pressure touches the second support arm (503)；Described longitudinal supporting block (501) and lateral support block (401) are in same plane and form angle α.
2. main bearing journal grinding center supporting arrangement according to claim 1, it is characterized in that: described lower bearing pin (402) is arranged on the base of " L " shape support plinth (300), and described upper pin (502) is arranged on the side of " L " shape support plinth (300).
3. main bearing journal grinding center supporting arrangement according to claim 1, it is characterised in that: described lateral support block (401) is movably connected with the second support arm (503) with the first support arm (403), longitudinal supporting block (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309969.6A CN105798714A (en) | 2016-05-11 | 2016-05-11 | Center bearing device for grinding of crankshaft main journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309969.6A CN105798714A (en) | 2016-05-11 | 2016-05-11 | Center bearing device for grinding of crankshaft main journal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105798714A true CN105798714A (en) | 2016-07-27 |
Family
ID=56455678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610309969.6A Pending CN105798714A (en) | 2016-05-11 | 2016-05-11 | Center bearing device for grinding of crankshaft main journal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944925A (en) * | 2017-05-13 | 2017-07-14 | 钟阳光 | A kind of grinder center frame |
| CN109366288A (en) * | 2018-12-16 | 2019-02-22 | 浙江工业大学 | A kind of constant moment of force automatic trimming device for toilet seat |
| CN109702585A (en) * | 2018-12-16 | 2019-05-03 | 浙江工业大学 | A kind of constant moment of force automatic trimming device for toilet lid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04201170A (en) * | 1990-11-30 | 1992-07-22 | Nippon Seiko Kk | Outer surface grinding device for long shaft |
| JPH05200665A (en) * | 1992-01-22 | 1993-08-10 | Mazda Motor Corp | Grinding device for shaft-like workpiece |
| JPH1190822A (en) * | 1997-09-22 | 1999-04-06 | Nippei Toyama Corp | Work rest device |
| JP2003117813A (en) * | 2001-10-12 | 2003-04-23 | Nippei Toyama Corp | Work rest device and method of controlling the device |
| CN101116944A (en) * | 2007-08-24 | 2008-02-06 | 湖南大学 | Servo autotracking support for bent axle grinding |
| CN205600441U (en) * | 2016-05-11 | 2016-09-28 | 安徽白兔湖动力股份有限公司 | Crankshaft main journal grinding center supporting arrangement |
-
2016
- 2016-05-11 CN CN201610309969.6A patent/CN105798714A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04201170A (en) * | 1990-11-30 | 1992-07-22 | Nippon Seiko Kk | Outer surface grinding device for long shaft |
| JPH05200665A (en) * | 1992-01-22 | 1993-08-10 | Mazda Motor Corp | Grinding device for shaft-like workpiece |
| JPH1190822A (en) * | 1997-09-22 | 1999-04-06 | Nippei Toyama Corp | Work rest device |
| JP2003117813A (en) * | 2001-10-12 | 2003-04-23 | Nippei Toyama Corp | Work rest device and method of controlling the device |
| CN101116944A (en) * | 2007-08-24 | 2008-02-06 | 湖南大学 | Servo autotracking support for bent axle grinding |
| CN205600441U (en) * | 2016-05-11 | 2016-09-28 | 安徽白兔湖动力股份有限公司 | Crankshaft main journal grinding center supporting arrangement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944925A (en) * | 2017-05-13 | 2017-07-14 | 钟阳光 | A kind of grinder center frame |
| CN109366288A (en) * | 2018-12-16 | 2019-02-22 | 浙江工业大学 | A kind of constant moment of force automatic trimming device for toilet seat |
| CN109702585A (en) * | 2018-12-16 | 2019-05-03 | 浙江工业大学 | A kind of constant moment of force automatic trimming device for toilet lid |
| CN109366288B (en) * | 2018-12-16 | 2024-03-01 | 浙江工业大学 | Automatic constant-torque trimming device for toilet seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106826474B (en) | Small size thin wall complex structure part superfine grinding lathe | |
| CN101918175B (en) | Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts | |
| CN102821894B (en) | Turning spindle assembly of composite processing center | |
| CN105798714A (en) | Center bearing device for grinding of crankshaft main journal | |
| CN104148680B (en) | A kind of method reducing numerically-controlled slide turning slender axles deviation from cylindrical form | |
| CN201609863U (en) | Milling and burnishing machine using plunger ball-milling generating method | |
| CN101259594B (en) | Large-scale flat plate milling equipment | |
| US10537971B2 (en) | Measuring steady rest for supporting and measuring central workpiece regions grinding machine with such a measuring steady rest, and method for supporting and measuring central workpiece regions | |
| CN102049668B (en) | Processing method of molding curve part and device used in same | |
| CN206519813U (en) | A kind of high-precision line slideway special purpose grinder | |
| CN103521788A (en) | Numerical control micro-nano bright mirror surface lathe and application thereof | |
| CN104191346A (en) | High-precision automatic polishing device | |
| CN205438045U (en) | Interior surface grinding device | |
| RU2697533C1 (en) | Circular grinder | |
| CN101244530B (en) | Grinder | |
| CN101716743B (en) | Processing technique of plunger ball-milling generating method of as well as grinding and polishing machine thereof | |
| CN103111924A (en) | Multipurpose surface grinder | |
| CN205600441U (en) | Crankshaft main journal grinding center supporting arrangement | |
| CN203566178U (en) | Numerical control lathe for bright micro-nano mirror surfaces | |
| CN201109049Y (en) | Worm coact accuracy tool setting gauge | |
| JP2006320970A (en) | Machining device | |
| CN107877380A (en) | A kind of crank-shaft link neck angle measurement error compensation method | |
| CN204843769U (en) | Cam grinding machine | |
| CN209551222U (en) | A kind of automobile axle housing hydraulic positioning compression device | |
| CN208409411U (en) | A kind of axis class centre bore grinding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
|
| RJ01 | Rejection of invention patent application after publication |