CN103878645B - A kind of ram overhanging deflection compensation device and method - Google Patents
A kind of ram overhanging deflection compensation device and method Download PDFInfo
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- CN103878645B CN103878645B CN201210562935.XA CN201210562935A CN103878645B CN 103878645 B CN103878645 B CN 103878645B CN 201210562935 A CN201210562935 A CN 201210562935A CN 103878645 B CN103878645 B CN 103878645B
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- 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
- B23Q23/00—Arrangements for compensating for irregularities or wear, e.g. of ways, of setting mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
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Abstract
The invention belongs to the Error Compensation Technology field of large-size numerical control machine or large-scale agitating friction soldering equipment, a kind of specifically ram overhanging deflection compensation device and method, comprise saddle, ram, column, force snesor and centroid adjustment mechanism, its central post vertically offers rectangular through-hole I, saddle is arranged in the rectangular through-hole I of column, and be vertically slidably connected with the front end of column and the inwall of rectangular through-hole I, saddle is provided with rectangular through-hole II along its length, ram is inserted in the rectangular through-hole II of saddle, and be slidably connected in the horizontal direction with saddle, saddle is vertical direction motion in the rectangular through-hole I of column, ram stretches out or retracts in the rectangular through-hole II of saddle, the one or both sides of saddle are provided with centroid adjustment mechanism, and the front end place of being slidably connected of saddle and column is provided with force snesor.It is large that the present invention compensates moment of flexure, and compensation effect is good, and precision is high, fast response time, and dynamic property is good.
Description
Technical field
The invention belongs to the Error Compensation Technology field of large-size numerical control machine or large-scale agitating friction soldering equipment, specifically a kind of ram overhanging deflection compensation device and method, be applicable to large-size horizontal digital-control boring-milling machine and the similar large-scale agitating friction soldering equipment of structure.
Background technology
Along with China's aerospace, manufacturing development, large-size horizontal digital-control boring-milling machine and the similar large-scale agitating friction soldering equipment application of structure more and more extensive.But its precision remains the key factor of its development of restriction, wherein ram overhangs distortion on the impact of its precision very greatly, is still insoluble technical problem at present.Ram overhanging distortion refers in ram front end after stretching out saddle, and the reach of ram barycenter makes ram front end downward-sloping.This distortion is that end executing means deviate from default position, thus creates processing or welding error.Current compensation method be mainly moving component barycenter compensates, ram is deformation-compensated, produce the compensation, hydraulic pressure moment of flexure penalty method etc. of being out of shape by ram and saddle entirety gravity center shift.Although existing compensation method compensate for part ram overhanging distortion all to some extent, and achieve some effects, but its weak point is ram stretch out after, compensate the distortion that ram gravity center shift produces, its active force all acts on saddle, and the end error that the distortion of saddle causes does not compensate.But also cause saddle to move up and down the stressed serious inequality of guide rail, way rub is increased, reduces guide rail service life.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of ram overhanging deflection compensation device and method.This apparatus structure is simple, compact, is easy to install, reliable and practical, and it is large to compensate moment of flexure, and compensation effect is good, can meet the requirement of strength and stiffness.
The object of the invention is to be achieved through the following technical solutions:
A kind of ram overhanging deflection compensation device, comprise saddle, ram, column, force snesor and centroid adjustment mechanism, its central post vertically offers rectangular through-hole I, described saddle is arranged in the rectangular through-hole I of column, and be vertically slidably connected with the front end of column and the inwall of rectangular through-hole I, described saddle is provided with rectangular through-hole II along its length, described ram is inserted in the rectangular through-hole II of saddle, and be slidably connected in the horizontal direction with saddle, described saddle is vertical direction motion in the rectangular through-hole I of column, described ram stretches out or retracts in the rectangular through-hole II of saddle, the one or both sides of described saddle are provided with centroid adjustment mechanism, and the front end place of being slidably connected of saddle and column is provided with force snesor, are compensated the distortion after ram overhanging by described centroid adjustment mechanism.
Described centroid adjustment mechanism comprises supporting box and is arranged at the motor in supporting box, hinge support, lift Connection Block, bearing pin, torsional axis, lever arm, spiral lift and spherical linkage, wherein torsional axis is installed on the sidewall of saddle, one end and the torsional axis of supporting box are rotationally connected, the cylindrical end of lever arm is sleeved on torsional axis, and be connected with torsional axis, the other end of lever arm is connected with spherical linkage by bearing pin, described spherical linkage upper end is connected with spiral lift, described motor is arranged on the side of spiral lift, described spiral lift top is provided with lift Connection Block, the both sides of described lift Connection Block are separately installed with the hinge support for support helix lift, described hinge support is connected with the both sides of supporting box, one end of described supporting box and the rectangular through-hole I inwall of column are slidably connected.
The relative two sides that rectangular through-hole I on described column and saddle connect vertically are arranged with auxiliary guide rail, described supporting box is vertically provided with boss, this boss is provided with two auxiliary sliders, and described auxiliary slider and auxiliary guide rail form sliding pair.
The both sides, one end of described supporting box offer bearing mounting base hole, described torsional axis is rotationally connected at the bearing mounting base hole place of supporting box both sides respectively by clutch shaft bearing and the second bearing, the cylindrical end of lever arm and be respectively equipped with sleeve and back-up ring between clutch shaft bearing and the second bearing, the outside of described back-up ring is provided with bearing baffle, and supporting box open side installs cover plate.Described lever arm and torsional axis spline joint.Described torsional axis is affixed by the side of screw and saddle.
The both sides of described column front end rectangular through-hole I are separately installed with main guide rail, and the both sides of the rectangle end face of described saddle are respectively equipped with groove, are provided with described force snesor in this groove, and described force snesor is provided with the master slider forming moving sets with main guide rail.
A kind of ram overhangs deformation-compensated method, the moment of flexure produced after ram overhangs is detected by force snesor, the numerical value detected inputs in control system by described force snesor, control system output order, to centroid adjustment mechanism, is compensated the distortion after ram overhanging by centroid adjustment mechanism.
Motor in described centroid adjustment mechanism receives the instruction of control system and drives spiral lift work, described spiral lift promotes lever arm, lever arm drives torsional axis to rotate, and described torsional axis drives saddle to reverse, and realizes the compensation of distortion after overhanging to ram.
Advantage of the present invention and good effect are:
1. structure of the present invention is simple, compact, is easy to install, reliable and practical, and it is large to compensate moment of flexure, and compensation effect is good, can meet the requirement of strength and stiffness.
2. the present invention compensates that real-time is good, compensation precision is high.The present invention adopts force snesor detection, motor closed-loop control, and compensation precision is high, and its system response time is fast simultaneously, and dynamic property is good.
3. dynamical system of the present invention adopts and electrically drives, and avoids the use of conventional hydraulic, and manufacturing field in Aero-Space has some superiority.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is column internal structure schematic diagram of the present invention;
Fig. 3 is the structural representation of centroid adjustment mechanism of the present invention;
Fig. 4 is the top view of centroid adjustment mechanism of the present invention;
Fig. 5 is the isometric views of centroid adjustment mechanism of the present invention;
Fig. 6 is the structural representation of torsional axis of the present invention;
Fig. 7 is the structural representation of lever arm of the present invention.
Wherein: 1 is saddle, 2 is screw, and 3 is ram, and 4 take rail as the leading factor, 5 is column, and 6 is force snesor, and 7 is master slider, and 8 is auxiliary slider, 9 is auxiliary guide rail, and 10 is motor, and 11 is cover plate, and 12 is hinge support, 13 is lift Connection Block, and 14 is bearing pin, and 15 is bearing baffle, and 16 is torsional axis, 17 is sleeve, and 18 is back-up ring, and 19 is clutch shaft bearing, and 20 is the second bearing, 21 is supporting box, and 22 is lever arm, and 23 is spiral lift, and 24 is spherical linkage.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1 ~ 7, the present invention includes saddle 1, ram 3, column 5, force snesor 6 and centroid adjustment mechanism, its central post 5 vertically offers rectangular through-hole I, two sides relative inside this rectangular through-hole I are vertically arranged with boss, boss is installed auxiliary guide rail 9, on the front end face of column 5, the both sides of rectangular through-hole I are vertically arranged with main guide rail 4.Saddle 1 is T-shaped, and the both sides of wider one end vertically offer groove, is provided with force snesor 6 in this groove, and force snesor 6 is provided with the master slider 7 forming moving sets with main guide rail 4.The one or both sides of saddle 1 are provided with centroid adjustment mechanism, and centroid adjustment mechanism is vertically provided with auxiliary slider 8.Be slidably connected with the main guide rail 4 on column 5 and auxiliary guide rail 9 respectively by master slider 7 and auxiliary slider 8 in the rectangular through-hole I that saddle 1 is arranged at column 5.Saddle 1 is provided with rectangular through-hole II along its length, and be slidably connected in the horizontal direction with saddle 1 in the rectangular through-hole II that ram 3 is inserted in saddle 1, ram 3 stretches out or retracts in the rectangular through-hole II of saddle 1.
Described centroid adjustment mechanism comprises supporting box 21 and is arranged at motor 10, cover plate 11, hinge support 12, lift Connection Block 13, bearing pin 14, bearing baffle 15 torsional axis 16, sleeve 17, back-up ring 18, clutch shaft bearing 19, second bearing 20, lever arm 22, spiral lift 23 and the spherical linkage 24 in supporting box 21, wherein torsional axis 16 is affixed with the side of saddle 1 by screw 2, the cylindrical end of lever arm 22 to be sleeved on torsional axis 16 and with torsional axis 16 spline joint.The cylindrical end of lever arm 22 is equipped with sleeve 17, clutch shaft bearing 19 near the side of saddle 1, and opposite side is equipped with back-up ring 18, second bearing 20 and bearing baffle 15.The other end of lever arm 22 is connected with spherical linkage 24 by bearing pin 14, spherical linkage 24 upper end is connected with spiral lift 23, motor 10 is arranged on the side of spiral lift 23, spiral lift 23 top is provided with lift Connection Block 13, hinge support 12, two hinge support 12 that the both sides of lift Connection Block 13 are separately installed with for support helix lift 23 are connected with the both sides of supporting box 21 respectively.
Described supporting box 21 both sides have bearing mounting base hole, and clutch shaft bearing 19 and the second bearing 20 are installed on the bearing mounting base hole place of supporting box 21 both sides respectively, and supporting box 21 open side installs cover plate 11.Auxiliary slider 8 is arranged on supporting box 21.
The installation process of centroid adjustment mechanism is:
With screw 2, torsional axis 16 and saddle 1 are fixed together, longer one section of torsional axis 16 is outside saddle 1, by clutch shaft bearing 19 and sleeve 17 from torsional axis 16 outstanding go out side install, the side pressing close to saddle 1 is clutch shaft bearing, sleeve 17, for the inner ring of axial restraint clutch shaft bearing 19, makes clutch shaft bearing 19 and lever arm 22 to contact with each other and rubs; Lever arm 22 is positioned at the inside of supporting box 21, be enclosed within torsional axis 16 by the bearing mounting hole of supporting box 21 and the cylindrical hole of lever arm 22, again back-up ring 18, second bearing 20 is inserted on torsional axis 16 in turn afterwards, back-up ring 18, for the inner ring of axial restraint second bearing, makes the second bearing 19 can not contact with each other with lever arm 22 and rubs; At the end face of torsional axis 16, a bearing baffle 15 is installed, for fixing the second bearing 20; The other end of lever arm 22 is connected with spherical linkage 24 by bearing pin 14, spherical linkage 24 upper end is connected with spiral lift 23, motor 10 is arranged on the side of spiral lift 23, spiral lift 23 top is provided with lift Connection Block 13, and the both sides of lift Connection Block are equipped with hinge support 12 respectively, hinge support 12 is affixed with supporting box 21, for support helix lift 23, after installing, core-regulating mechanism entirety is positioned at the inside of supporting box 21, open side installs a cover plate 11, and motor 10 is stretched out by the tapping of cover plate 11; Auxiliary slider 8 is arranged on the boss of supporting box 21, and auxiliary guide rail 9 and auxiliary slider 8 are formed moving sets.
Operation principle of the present invention is:
Ram 3 stretches out, the gravity motion of ram 3, produce moment of flexure, this moment of flexure is delivered to main guide rail 4 through saddle 1, then the force snesor 6 under main guide rail 4 reaches on column 5, the measured value of force snesor 6 is increased, inputs in control system by force snesor 6 measured value, calculate by analysis, export analogue enlargement amount.By in the driver of analogue enlargement amount input motor 10, control the level of torque of motor 10.Motor 10 drives spiral lift 23 to be rectilinear motion by convert rotational motion, the leading screw of spiral lift 23 stretches out, promote lever arm 22, lever arm 22 drives torsional axis 16 to rotate, torsional axis 16 and saddle 1 connect together, make saddle 1 reverse a minute angle, thus end deflection is reduced.Now, below the main guide rail 4 that support saddle 1 moves, the pressure of force snesor 6 reduces, and when force snesor 6 returns to initial alignment value, control system sends moment hold instruction, until the measured value of force snesor 6 again increases or reduces to motor 10 driver.This compensation torque, by saddle 1, through torsional axis 16-lever arm 22-spiral lift 23-supporting box 21-auxiliary guide rail 9, is finally delivered on column 5.
Claims (8)
1. a ram overhanging deflection compensation device, it is characterized in that: comprise saddle (1), ram (3), column (5), force snesor (6) and centroid adjustment mechanism, (5) vertically offer rectangular through-hole I to its central post, described saddle (1) is arranged in the rectangular through-hole I of column (5), and be vertically slidably connected with the front end of column (5) and the inwall of rectangular through-hole I, (1) is provided with rectangular through-hole II to described saddle along its length, described ram (3) is inserted in the rectangular through-hole II of saddle (1), and be slidably connected in the horizontal direction with saddle (1), described saddle (1) is vertical direction motion in the rectangular through-hole I of column (5), described ram (3) stretches out or retracts in the rectangular through-hole II of saddle (1), the one or both sides of described saddle (1) are provided with centroid adjustment mechanism, saddle (1) is provided with force snesor (6) with the front end place of being slidably connected of column (5), is compensated the distortion after ram (3) overhanging by described centroid adjustment mechanism,
Described centroid adjustment mechanism comprises supporting box (21) and is arranged at the motor (10) in supporting box (21), hinge support (12), lift Connection Block (13), bearing pin (14), torsional axis (16), lever arm (22), spiral lift (23) and spherical linkage (24), wherein torsional axis (16) is installed on the sidewall of saddle (1), one end and the torsional axis (16) of supporting box (21) are rotationally connected, the cylindrical end of lever arm (22) is sleeved on torsional axis (16), and be connected with torsional axis (16), the other end of lever arm (22) is connected with spherical linkage (24) by bearing pin (14), described spherical linkage (24) upper end is connected with spiral lift (23), described motor (10) is arranged on the side of spiral lift (23), described spiral lift (23) top is provided with lift Connection Block (13), the both sides of described lift Connection Block (13) are separately installed with the hinge support (12) for support helix lift (23), described hinge support (12) is connected with the both sides of supporting box (21), one end of described supporting box (21) and rectangular through-hole I inwall of column (5) are slidably connected.
2. press the ram overhanging deflection compensation device described in claims 1, it is characterized in that: the relative two sides that the rectangular through-hole I on described column (5) and saddle (1) connect vertically are arranged with auxiliary guide rail (9), (21) are vertically provided with boss to described supporting box, this boss is provided with two auxiliary sliders (8), and described auxiliary slider (8) and auxiliary guide rail (9) form sliding pair.
3. by ram overhanging deflection compensation device described in claim 1, it is characterized in that: the both sides, one end of described supporting box (21) offer bearing mounting base hole, described torsional axis (16) is rotationally connected at the bearing mounting base hole place of supporting box (21) both sides respectively by clutch shaft bearing (19) and the second bearing (20), the cylindrical end of lever arm (22) and be respectively equipped with sleeve (17) and back-up ring (18) between clutch shaft bearing (19) and the second bearing (20), the outside of described back-up ring (18) is provided with bearing baffle (15), supporting box (21) open side installs cover plate (11).
4. by ram overhanging deflection compensation device described in claim 1, it is characterized in that: described lever arm (22) and torsional axis (16) spline joint.
5. by ram overhanging deflection compensation device described in claim 1, it is characterized in that: described torsional axis (16) is affixed with the side of saddle (1) by screw (2).
6. press the ram overhanging deflection compensation device described in claims 1, it is characterized in that: the both sides of described column (5) front end rectangular through-hole I are separately installed with main guide rail (4), the both sides of the rectangle end face of described saddle (1) are respectively equipped with groove, be provided with described force snesor (6) in this groove, described force snesor (6) is provided with the master slider (7) forming moving sets with main guide rail (4).
7. one kind utilizes device described in any one of claim 1-6 to carry out ram to overhang deformation-compensated method, it is characterized in that: detected the moment of flexure produced after ram (3) overhangs by force snesor (6), the numerical value detected inputs in control system by described force snesor (6), control system output order, to centroid adjustment mechanism, is compensated the distortion after ram (3) overhanging by centroid adjustment mechanism.
8. by method according to claim 7, it is characterized in that: the motor (10) in described centroid adjustment mechanism receives the instruction of control system and drives spiral lift (23) to work, described spiral lift (23) promotes lever arm (22), lever arm (22) drives torsional axis (16) to rotate, described torsional axis (16) drives saddle (1) to reverse, and realizes the compensation of distortion after overhanging to ram (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562935.XA CN103878645B (en) | 2012-12-20 | 2012-12-20 | A kind of ram overhanging deflection compensation device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210562935.XA CN103878645B (en) | 2012-12-20 | 2012-12-20 | A kind of ram overhanging deflection compensation device and method |
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| CN103878645A CN103878645A (en) | 2014-06-25 |
| CN103878645B true CN103878645B (en) | 2016-03-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUA20161753A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN MACHINE MACHINE PERFECTED WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
| ITUA20161742A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN TOOL MACHINE WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
| ITUA20161749A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN TOOL MACHINE WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546133B (en) * | 2015-03-17 | 2022-02-11 | 芝浦机械株式会社 | Machine tool |
| CN112146910B (en) * | 2020-09-27 | 2021-08-10 | 清华大学 | Simulation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUA20161753A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN MACHINE MACHINE PERFECTED WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
| ITUA20161742A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN TOOL MACHINE WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
| ITUA20161749A1 (en) * | 2016-03-17 | 2017-09-17 | Hpt Sinergy Srl | CARTESIAN TOOL MACHINE WITH HORIZONTAL SLIDE AND WORKING HEAD WITH OVERHANG, AND SLIDING CARRIAGE FOR THIS MACHINE TOOL |
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| WO2017158090A1 (en) * | 2016-03-17 | 2017-09-21 | Hpt Sinergy S.R.L. | Cartesian machine tool with horizontal slide and cantilevered machining head, and slide carriage for such machine tool |
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| CN103878645A (en) | 2014-06-25 |
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