CN112246916B - A accurate roll extrusion correcting unit for aviation thin wall metal structure - Google Patents
A accurate roll extrusion correcting unit for aviation thin wall metal structure Download PDFInfo
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- CN112246916B CN112246916B CN202010843128.XA CN202010843128A CN112246916B CN 112246916 B CN112246916 B CN 112246916B CN 202010843128 A CN202010843128 A CN 202010843128A CN 112246916 B CN112246916 B CN 112246916B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses an accurate rolling correction device for an aviation thin-wall metal structural part, which belongs to the technical field of aviation thin-wall part rolling correction and comprises a support, a force increasing device, a transmission rolling device, a force measuring rolling device, an approaching buffer device, a digital display system and a computer data analysis system. The support provides support for the rolling correction device; the force increasing device outputs rolling load; monitoring and feeding back a rolling load value in real time by a force measuring rolling device and an approaching buffer device; the transmission rolling device provides rolling power and detects the running state of the rolling device in real time; and the digital display system and the computer data analysis system are used as a man-machine interaction system to adjust the output of the rolling load value in real time. The device applies pressure from the two sides of the thin-wall structural part, ensures uniform rolling, prevents unnecessary workpiece deformation from being introduced, can adjust rolling force in real time according to different deformation areas, and adopts a closed-loop control system to accurately control the rolling force.
Description
Technical Field
The invention relates to an accurate rolling correction device for an aviation thin-wall metal structural part, and belongs to the technical field of aviation thin-wall part rolling correction.
Background
In the numerical control machining process of the aviation structural part, the material removal rate is high, the structural rigidity is low, and the deflection deformation often occurs due to the residual internal stress of a metal material, machining stress introduced in the machining process and structural asymmetry. The machined components generally have the problems of different degrees and different forms of machining deformation, and the precision and the requirement required by airplane assembly cannot be met. At present, most of correction modes of aviation structural parts are manual hammer knocking correction and lead screw force increasing correction modes. Because the deformation of the part after numerical control machining is different at different positions, the deformation of the part can be overcorrected or incompletely corrected by adopting manual rough correction and single rolling correction load, the correction precision of the part completely depends on the experience and the eyesight observation of an operator, and the installation precision and the service life of the part are difficult to guarantee.
At present, the rolling devices for thin-wall parts are fewer, and the structural design has problems, for example,
1. in patent CN201253645Y, a rolling and shape correcting tool is disclosed, which uses a pre-tightening bolt to provide rolling load, and uses a driving wheel and a free wheel to perform rolling and shape correction on a thin-walled workpiece. The rolling load of the tool can not provide different rolling loads in real time according to different deformation of rolling positions, the pre-tightening bolts are used for applying rolling force to roll parts with the same structure, the pre-tightening bolts are adjusted once when each part is rolled, the repeatability is low, the correction precision is not easy to control, and the error fluctuation is large.
2. Patent CN105252206A discloses a two side rolling press device for thin-walled structure, adopt the pneumatic cylinder to provide the roll extrusion load, roll extrusion head centering roll extrusion, the roll extrusion position is difficult to detect, this two side rolling press device does not have terminal force measuring mechanism, the accurate control to the roll extrusion load is difficult to realize, difficult accurate high-efficient roll extrusion of realization is rectified, because the adoption of aviation thin-walled spare all is high strength aluminum alloy, the roll extrusion load value that needs apply is big, it is high to the intensity requirement of structure, utilize hinge structure transmission roll extrusion load, the structure volume is too big.
3. In patent CN107186000A, a method for correcting part deformation is disclosed, in which a pre-tightening bolt is used to provide rolling load, and the rolling load is corrected one by one according to the deformation direction of the corrected part and the deformation of a selected specific deformation point, a technician is required to select the deformation point according to experience, and a real-time monitoring and feedback device is absent for the rolling force during the rolling process, the pre-tightening bolt is not easy to realize real-time adjustment of the rolling load, the repeatability is low, and the position detection and feedback device is absent in the correction method, and the rolling precision is difficult to control.
In conclusion, the existing rolling correction technology has the defects that the pre-tightening bolt is used for providing rolling load, the structure is large in size, the structure is low in centering property, and unnecessary deformation is easily introduced; the existing rolling correction device lacks detection on rolling positions and cannot provide different rolling correction loads according to different positions; the rolling load in the correction process is applied with a single load by depending on the experience of technicians, and a real-time detection and feedback mechanism of the tail end rolling load is lacked, so that the installation precision of the part is met, the service life of the part is prolonged, and the intellectualization and the precision of the rolling correction process are realized.
Disclosure of Invention
Aiming at the defects, the invention provides a precise rolling correction device for an aviation thin-wall metal structural part.
The invention discloses a rolling correction device for an aviation thin-wall metal structural part, which adopts the following technical scheme:
the invention provides an accurate rolling correction device for an aviation thin-wall metal structural member, which comprises a support, a force increasing device, a transmission rolling device, a force measuring rolling device, an approaching buffer device and a digital display system, wherein the support is provided with the force increasing device and the transmission rolling device;
the support is provided with an increasing air cylinder mounting position, an increasing slide rail mounting groove, a rotating shaft output mechanism mounting position and a driver mounting position, and the increasing air cylinder mounting position, the rotating shaft output mechanism mounting position and three central lines of the driver mounting position are aligned and coplanar and are used for supporting parts of the device; the force increasing device adopts a wedge-shaped force increasing amplifying mechanism to ensure that the output meets the rolling load of the corrected part and stable rolling pressure is output; the transmission rolling device realizes the driving of the device and is used for detecting the rolling position in real time and feeding back a position signal to the digital display system so as to realize the accurate rolling of the rolling device; the digital display system is used as a control system of the rolling device, the deformation of the rolling device is obtained according to the position signal fed back by the transmission rolling device, the required correction load value is output by the digital display system and input into the force measurement rolling device, and the deformation and the rolling load form a group of complete data pairs; the force measuring and rolling device adopts double force measuring mechanisms, and detects and feeds back a tail end rolling load and a tail end output load of the cylinder in real time so as to realize accurate control of the rolling load and form a closed loop system of the device; the approaching buffer device is used for buffering the mechanism, so that overtravel of the device is prevented, noise in the rolling process is reduced, and the safety of the rolling device is improved.
As a further technical scheme, increase power device including increasing power cylinder, increase power slide rail, increase power slip table, increase power output connecting block, increase power pivot and wedge output piece, increase power cylinder as output power component, increase power cylinder and pass through increase power output connecting block and increase the power pivot and link to each other, increase power slide rail and increase power slip table as the direction component of roll extrusion in-process, increase power pivot as power transmission component, wedge output piece install on increasing power slip table, its wedge and increase power pivot cooperation realize the reinforcement.
As a further technical scheme, the force measuring and rolling device comprises a cantilever type force sensor, a rolling bearing and a first force sensor module, the cantilever type force sensor is used for measuring rolling load in real time, the rolling bearing is installed at the upper end of the cantilever type force sensor, and the first force sensor module is installed in a force increasing output connecting block and used for detecting the output acting force of the force increasing air cylinder.
As a further technical scheme, the transmission rolling device comprises a driving machine, a rotating shaft output mechanism and an active rolling mechanism, wherein the driving machine is used as a transmission power element of the rolling device, the rotating shaft output mechanism is installed on a rotating shaft output mechanism installation position of the support, and the active rolling mechanism is installed at the tail end of the upper part of the rotating shaft output mechanism.
As a further technical scheme, the rotating shaft output mechanism comprises an output shaft support, an output rotating shaft and a micro encoder, the output shaft support is used as a supporting element, the output rotating shaft is used as a power transmission element, wherein the axis of the output rotating shaft, the axis of a cantilever type force sensor in the force measuring rolling device and the axis of a boosting cylinder plunger rod in the boosting device are aligned and coplanar in a three-line mode, and the micro encoder is coaxially installed at the tail end of the lower portion of the output rotating shaft.
As a further technical scheme, the active rolling mechanism mainly comprises a rolling wheel, a flat key III, a rolling baffle and a rolling height adjusting bolt, wherein an upper end roller shaft collar and an output rotating shaft are coaxially arranged, a guide strip is arranged on the upper end roller shaft collar, the rolling wheel is connected to the output rotating shaft through the flat key III, the upper surface of the rolling wheel is aligned with the upper surface of a rolling bearing of the force measuring rolling device, a guide groove is formed in the rolling baffle and is matched with the guide strip of the upper end roller shaft collar, and the rolling height adjusting bolt adjusts the height of the rolling baffle through the screwing amount of the adjusting bolt.
As a further technical solution, the proximity buffering device includes a first cushion rubber pad, a second cushion rubber pad, a first proximity switch and a second proximity switch, the first cushion rubber pad and the second cushion rubber pad are used as buffering elements, and the first proximity switch and the second proximity switch are used as position control elements.
As a further technical scheme, the digital display system comprises a follow-up digital display screen and a device control box, wherein the follow-up digital display screen is used for displaying interactive elements in the rolling process, and the device control box is provided with power supply access interfaces, data transmission interfaces and data transmission interfaces for feeding back and controlling the state of the rolling process.
When the device is applied, the side wall of the edge strip on the workpiece is respectively tangent with the rolling bearing and the rolling wheel, the clamping gap is adjusted by controlling the extension of the plunger rod of the cylinder, and the upper end of the edge strip is in surface-to-surface contact with the rolling baffle plate to control the rolling height. In the correction process, the rolling force is monitored in real time through the cantilever type force sensor and the first force sensor module, the rolling force is fed back to the computer data analysis system through the device control box, the rolling force is adjusted in real time, the fiber length of a rolling area is changed, and therefore the preset correction precision is achieved.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the invention, the wedge-shaped force increasing device is utilized, so that the rolling load is amplified, the adjusting range of the rolling load is expanded, and the force transmission process is stable;
2. by adopting the transmission rolling device and the approach buffer device, the correction positions with different heights can be realized, the rolling position and the rolling speed are detected, the running state of the rolling device is fed back, and the rolling efficiency is improved;
3. the force-measuring rolling device is adopted to realize real-time detection of rolling load in the rolling process, the rolling load is fed back to a control system of the device, different rolling loads are analyzed and calculated according to deformation of different positions of a workpiece, the rolling load is adjusted in real time through a device control box, over-correction and incomplete correction are prevented, and therefore correction precision and service life of parts are improved;
4. the digital display system and the computer data analysis system realize a man-machine interaction mode in the rolling process, change the correction mode depending on manual experience correction and trial-and-error method, and reduce the operation requirements of technical personnel.
5. The device has compact structure, adopts a closed-loop design structure, light weight, high mechanism strength and convenient disassembly and maintenance, and is suitable for operation in various occasions, such as manual operation, manipulator operation and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a left side view of the overall structure of the present invention.
Fig. 3 is a schematic diagram of the transmission structure of the present invention.
Fig. 4 is a schematic view of the rolling force output device of the present invention.
FIG. 4-1 is a schematic view of a force increasing device according to the present invention.
FIG. 4-2 is an exploded view of the force increasing device of the present invention.
Fig. 4-3 are schematic diagrams of wedge-shaped output blocks of the present invention.
Figure 5 is a rolling apparatus linkage profile of the present invention.
FIG. 6 is a flow chart of the rolling correction method of the present invention.
In the figure: 1. a workpiece; 2. fixing bolts for rolling wheels; 3. rolling a wheel retainer ring; 4. rolling wheels; 5. rolling a baffle plate; 5-1, rolling a height adjusting bolt; 6. a bearing end cap; 7. a protective shell II; 8. a support; 9. a motor end handle base; 10. an output shaft support; 11. a motor end handle; 12. a driver; 13. a device control box; 14. an arcuate handle; 15. a force increasing cylinder; 16. a handle mounting slide block; 17. force increasing slide rails; 18. a force increasing sliding table; 19. a protective shell I; 20. a follow-up digital display screen; 21. a cantilevered force sensor; 22. rolling a bearing; 23. axially positioning the end cap; 24. a shaft end retainer ring; 25. a bolt at the tail end of the pin shaft; 26. a level detection sensor; 27. a second proximity switch; 28. a flat bond III; 29. an output shaft; 30. an upper end roller collar; 31. an upper end bearing of the output shaft; 32. a flat bond II; 33. an output gear; 34. a bearing at the lower end of the output shaft; 35. an encoder magnetic cylinder; 36. an encoder chip; 37. a copper stud; 38. an input gear; 39. a flat bond I; 40. a wedge-shaped output block; 40-1, vertical edges of the wedge-shaped output block; 40-2, wedge output block inclined plane; 40-3, pin shaft mounting holes; 41. a power increasing output connecting block; 41-1, increasing power output connecting block shaft holes; 42. a circumferential positioning key; 43. a first cushion rubber pad; 44. a first proximity switch; 45. a computer data analysis system; 46. a force-increasing rotating shaft; 47. a force measuring rod; 48. a second cushion rubber pad; 49. a miniature pressure sensor; 50. a manipulator bracket; 51. a cylinder base; 52. motor base.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As described in the background of the invention, the prior art has shortcomings, and in order to solve the above technical problems, the present invention provides a precise rolling correction device for aviation thin-wall metal structural members.
Example 1
As shown in the attached figure 1, the invention provides a precise rolling correction device for an aviation thin-wall metal structural part, which mainly comprises: the device comprises a support 8, a force increasing device, a transmission rolling device, a force measuring rolling device, an approaching buffer device, a digital display system and a computer data analysis system 45.
Increase power device and transmission rolling press device are installed to support 8, and two device central lines align coplane installation, and dynamometry rolling press device is installed at increasing power device output with being close buffer, and digital display system installs in increasing power device shell both sides, and computer data analysis system 45 is connected with digital display system data output port.
The force increasing device adopts a wedge-shaped force increasing amplifying mechanism to ensure that the output meets the rolling load of the corrected part and outputs stable rolling pressure; the driving of the rolling device realization device is used for detecting the rolling position in real time and feeding back a position signal to the digital display system so as to realize accurate rolling of the rolling device; the digital display system is used as a control system of the rolling device, the deformation of the rolling device is obtained according to the position signal fed back by the transmission rolling device, the required correction load value is output by the digital display system and input into the force measurement rolling device, and the deformation and the rolling load form a group of complete data pairs; the force measuring and rolling device adopts double force measuring mechanisms, and detects and feeds back a tail end rolling load and a tail end output load of the cylinder in real time so as to realize accurate control of the rolling load and form a closed loop system of the device; the approaching buffer device is used for buffering the mechanism, so that overtravel of the device is prevented, noise in the rolling process is reduced, and the safety of the rolling device is improved.
Further, be provided with on support 8 and increase power cylinder 15 installation position, increase power slide rail 17 mounting groove, pivot output mechanism installation position and driving machine 12 installation position, wherein, have and increase power cylinder 15 installation position, pivot output mechanism installation position and the central line of driving machine 12 installation position and align the coplane.
As shown in fig. 4 and 4-1, the force increasing device comprises a force increasing cylinder 15, a force increasing slide rail 17, a force increasing slide table 18, a force increasing output connection block 41, a force increasing rotating shaft 46, a wedge-shaped output block 40 and a protective shell i 19; the force-increasing air cylinder 15 is used as an output power element and is arranged on a force-increasing air cylinder mounting position at the lower end of the support 8, the force-increasing slide rail 17 is mounted in a force-increasing slide rail mounting groove of the support 8, the force-increasing slide table 18 is matched with the force-increasing slide rail 17 in a surface fit mode, the force-increasing slide table 18 can slide on the force-increasing slide rail 17 stably, and the force-increasing slide rail and the force-increasing slide table are used as guide elements in a rolling process to guide the movement of the wedge-shaped output block 40; the force increasing output connecting block 41 is connected with a plunger rod of the force increasing cylinder 15 through a bolt, as shown in FIG. 4-2, a shaft hole 41-1 is arranged on the force increasing output connecting block 41, a force increasing rotating shaft 46 is coaxially installed with the shaft hole 41-1 of the force increasing output connecting block, a wedge-shaped output block 40 is fixed on the force increasing sliding table 18 through a bolt, the whole wedge-shaped output block 40 is of a rectangular block structure, a groove is arranged in the rectangular block, the groove is provided with a wedge-shaped output block inclined surface 40-2, the force increasing rotating shaft 46 is inserted in the groove and moves in a tangent mode with the wedge-shaped output block inclined surface 40-2, a protective shell I19 is arranged on the wedge-shaped output block 40, a pin shaft mounting hole 40-3 is further arranged on the wedge-shaped output block 40, and the axis of the pin shaft mounting hole 40-3 is perpendicular to the axis of the force increasing rotating shaft, as shown in FIG. 4, the axis of the pin shaft mounting hole 40-3 is a vertical straight line, and the straight line of the boosting rotating shaft is a horizontal straight line. The concrete working process of this increase power device is: increase power device through increasing power cylinder 15 output effort, on increasing power output connecting block 41, increase power pivot 46 and insert the wedge plane of acting on wedge output block 40 with cylinder output effort on increasing power output connecting block 41, utilize the wedge plane that has certain angle on the wedge output block 40 to enlarge the effort to output roll extrusion load.
As shown in fig. 4-3, the wedge-shaped output block 40 is provided with a wedge-shaped output block inclined surface 40-2 and a pin shaft mounting hole 40-3, if an included angle between the wedge-shaped output block inclined surface 40-2 and the wedge-shaped output block vertical edge 40-1 is defined as an output angle α, the preferred output angle range is 0 ° < α <45 °, and the amplification factor of the rolling force output by the rolling device is 1/tan α.
As shown in fig. 4, the force measuring rolling device includes a cantilever type force sensor 21, a circumferential positioning key 42, an axial positioning end cover 23, a rolling bearing 22, a shaft end retainer ring 24, a pin shaft end bolt 25 and a first force sensor module, wherein the cantilever type force sensor 21 is installed in a pin shaft installation hole 40-3 of a wedge-shaped output block 40 and is used for measuring a rolling load in real time; circumferential direction positioning key 42 sets up in cantilever type force sensor 21's lower extreme keyway, and axial positioning end cover 23 sets up in the upper end of wedge output piece 40 for cantilever type force sensor 21's axial fixity, and rolling bearing 22 is installed in cantilever type force sensor 21 upper end, and round pin axle end bolt 25 is installed in cantilever type force sensor 21's upper end screw hole, and first force sensor module is installed in the first force sensor installation hole site that increases power output connecting block 41 for detect and increase power cylinder output effort size.
Wherein the first force sensor module comprises a miniature pressure sensor 49 and a force measuring lever 47. One end of the force measuring rod 47 is installed on the miniature pressure sensor 49, one end of the force measuring rod is in contact with the force increasing rotating shaft 46, and the output force of the force increasing cylinder 15 is measured through the pressing-in amount of the force increasing rotating shaft 46.
As shown in fig. 3, the transmission rolling device includes a driver 12, an input gear 38, a flat key i 39, a rotating shaft output mechanism and an active rolling mechanism, wherein the driver 12 is mounted on a driver mounting position of the bracket 8, the input gear 38 is connected to an output shaft of the driver 12 through the flat key i 39, the rotating shaft output mechanism is mounted on a rotating shaft output mechanism mounting position of the bracket 8, and the active rolling mechanism is mounted at the upper end of the rotating shaft output mechanism.
The rotating shaft output mechanism comprises an output shaft bracket 10, an output rotating shaft 29, an output gear 33, a micro encoder, an output shaft lower end bearing 34, a flat key II 32, an output shaft upper end bearing 31 and a bearing end cover 6, wherein the output shaft lower end bearing 34 and the output shaft upper end bearing 31 are respectively arranged in a bearing hole of the output shaft bracket 10, the output rotating shaft 29 and the two bearings are coaxially arranged, the axis of the output rotating shaft 29, the axis of the cantilever type force sensor 15 in the force measuring rolling device and the axis of the plunger rod of the force increasing cylinder 21 in the force increasing device are aligned and coplanar in three lines, the micro encoder is coaxially arranged at the tail end of the lower part of the output rotating shaft 29, the output gear 33 is connected on the output rotating shaft 29 through a flat key II 32, the bearing end cover 6 is arranged at the upper end of the output shaft bracket 10, for axial fixation of the bearing at the upper end of the output rotating shaft 29, the output gear 33 is meshed with the input gear 38;
the specific transmission process of the transmission rolling device is as follows: the driving machine 12 drives the input gear 38 to rotate, the input gear 38 drives the output gear 33 to rotate, the output gear 33 drives the output rotating shaft 29 to rotate, and then the output rotating shaft 29 drives the rolling wheel to rotate.
Furthermore, the tail end of the lower part of the output rotating shaft 29 is provided with a magnetic column mounting blind hole for mounting a magnetic column 35 of the embedded encoder.
The miniature encoder comprises an encoder chip 36, a copper column bolt 37 and an encoder magnetic column 35, wherein the encoder chip 36 is installed at the lower end of the output shaft support 10 through the copper column bolt 37, and the encoder magnetic column 35 is installed in a magnetic column installation blind hole of the output rotating shaft 29 and used for monitoring the moving speed and the rolling position of the rolling correction mechanism in real time.
As shown in fig. 3, the active rolling mechanism includes an upper roller collar 30, a rolling wheel 4, a rolling wheel retainer ring 3, a flat key iii 28, a rolling baffle 5, a rolling height adjusting bolt 5-1, a protective shell ii 7 and a rolling wheel fixing bolt 2, the upper roller collar 30 and an output rotating shaft 29 are coaxially installed, a guide strip is arranged on the upper roller collar 30, the rolling wheel 4 is connected on the output rotating shaft 29 through the flat key iii 28, the upper surface of the rolling wheel 4 is aligned with the upper surface of a rolling bearing 22 of a force measuring rolling device to avoid flanging of a part edge strip caused by high and low, a guide groove is arranged on the rolling baffle 5 to be matched with the guide strip of the upper roller collar 30, a rolling height adjusting bolt 5-1 is arranged on the rolling baffle 5, the rolling height adjusting bolt 5-1 adjusts the rolling height through adjusting the screwing amount of the bolt, the rolling wheel fixing bolt 2 is arranged at the upper end of the output rotating shaft 29, and the protective shell II 7 is arranged on the bracket 8.
The rolling baffle 5 is provided with a horizontal detection sensor 26 for detecting the running state of the rolling device and feeding back to an operator so as to control the running state of the rolling device.
The proximity cushioning device includes a first cushion rubber pad 43, a second cushion rubber pad 48, a first proximity switch 44, and a second proximity switch 27. First cushion rubber pad 43 and second cushion rubber pad 48 are installed respectively at the lower extreme and the upper end that increase power output connecting block 41, and first proximity switch 44 is installed at the upper end that increases power output connecting block 41, and second proximity switch 27 is installed at the rear side of protective housing I19, and first proximity switch 44 proximity switch and second proximity switch 27 are connected with device control box 13.
The digital display system comprises a follow-up digital display screen 20 and a device control box 13, wherein the follow-up digital display screen 20 is arranged on the rear side of a protective shell I19, the device control box 13 is arranged on the front side of the protective shell I19, the device control box 13 is provided with a power supply access interface, a data transmission interface and a data transmission interface, and all data of the rolling device are input and output from the control box.
The computer data analysis system 45 guides the rolling model into the computer data analysis system, analyzes and calculates the rolling force required by each section according to different deformation, the calculated data is input into the device control box 13, and the real-time rolling load of the rolling device is fed back to the computer analysis system, so that the real-time monitoring and interaction functions are realized.
The device is also provided with a handheld auxiliary device. Handheld auxiliary device include motor end handle base 9, motor end handle 11, bow-shaped handle 14 and handle installation slider 16, motor end handle base 9 sets up at the lower extreme of support 8, installs with driving machine 12 is coaxial, motor end handle 11 is installed on motor end handle base 9, handle installation slider 16 is pairwise setting in the spout of increasing power jar 15, bow-shaped handle 14 installation is on handle installation slider 16.
As shown in fig. 6, the rolling correction method of the present invention comprises the following steps: the workpiece is placed on the rolling correction position of the invention, the computer analysis system 45 is used for analysis and calculation, and signals are transmitted to the device control box 13; the rolling and correction of the device are controlled by a device control box 13; in the operation process of the device, the position signal is transmitted to the device control box 13 through the transmission rolling device, then transmitted to the computer analysis system 45 through the device control box 13, the rolling position is calculated by the computer analysis system 45, a rolling load signal required by the rolling position is output, and the output load of the force increasing device is adjusted in real time through the device control box 13; the force-increasing cylinder output load and the tail end rolling load are detected in real time by the force-measuring rolling device and fed back to the device control box 13, a set of complete data pairs are formed by the deformation and the rolling load, a closed-loop adjusting system of the whole rolling device is achieved, the correction precision of the rolling device and the stability of the system are improved, and accurate rolling correction is achieved.
In particular, the amount of the solvent to be used,
as can be seen from fig. 1 and fig. 2, the present embodiment mainly includes: the device comprises a workpiece 1, a force increasing device, a transmission rolling device, a force measuring rolling device, an approaching buffer device, a digital display system and a computer data analysis system 45. Before the work piece rolling correction work starts, numerical control machining data of the deformed part needs to be led into a computer data analysis system 45, different correction load values are calculated according to different deformation quantities, the numerical values are led into a device control box 13 in a digital display system, and rolling numerical value real-time data are transmitted into a follow-up digital display screen 20 in the digital display system, so that an operator can observe the correction condition conveniently.
In the work process of rolling and correcting the workpiece, a handheld auxiliary device is used for adjusting the state of the rolling device to realize balanced and stable rolling; placing a workpiece 1 in a rolling space of a rolling wheel 4 and a rolling bearing 22, wherein the workpiece 1 is a T-shaped thin-walled workpiece, the vertical part of the workpiece is a flange side wall, and adjusting the position height of a rolling baffle by adjusting the screwing amount of a rolling height adjusting bolt 5-1 so as to control the rolling height, and the rolling baffle is utilized to ensure that a rolling mechanism moves uniformly above the flange of the workpiece 1; increase power device and pass through increasing power cylinder 15 output effort, on increasing power output connecting block 41, increase power pivot 46 with cylinder output effort wedge plane on wedge output block 40, utilize the wedge plane that has certain angle on the wedge output block 40 to enlarge the effort to export predetermined roll extrusion load, roll extrusion bearing 22 through on the dynamometry rolling device is used in the flange lateral wall of work piece 1, roll extrusion bearing 22 is tangent the roll extrusion with the flange lateral wall of work piece 1.
The cylindrical surface of the rolling wheel 4 is tangent to the other surface of the edge strip of the workpiece 1 for rolling, a driving machine 12 is used for outputting a power load, an output rotating shaft 29 is driven by the meshing of an input gear and an output gear, the rolling wheel 4 is driven by the output rotating shaft to roll the two sides of the edge strip of the workpiece 1, so that the material fiber at the rolling position is increased, the material fiber is offset with the deformation in the numerical control machining process, and the correction of the workpiece 1 is realized; by adjusting the position of the connecting thread of the output shaft bracket 10, the central lines of the rolling wheel 4 and the rolling bearing 22 are adjusted to be aligned and coplanar, thereby avoiding unnecessary deformation caused by the misalignment of the central lines and reducing the installation precision of parts. And the embedded encoder is utilized to measure the rotating speed and the rolling position of the rotating shaft in real time, so that the rolling load is adjusted.
In order to prevent the overtravel phenomenon of the device, the first buffer rubber pad 43 and the second buffer rubber pad 48 in the proximity buffer device are used as buffer media, so that the noise between parts is reduced, the overtravel problem of the device is prevented by the first proximity switch 44 and the second proximity switch 27, and the safety performance of the device is improved.
The motion matching process of the approach buffering device comprises the following steps: in the device, in the operation process of pushing up the boosting air cylinder 15, the boosting output connecting block 41 rises under the action of the boosting air cylinder 15, the position state of the boosting output connecting block 41 is detected in real time by the first proximity switch 44, and a position signal of the boosting output connecting block 41 is fed back to the device control box 13; second proximity switch 27 installs in the outside of the outside I19 of protective housing of wedge output piece 40 under the drive of increase power pivot 46, wedge output piece 40 is to the lateral wall motion of work piece 1, detect and feed back wedge output piece 40's position state by second proximity switch 27, in signal transmission arrives device control box 13, send early warning signal when first proximity switch 44 and second proximity switch 27's arbitrary sensor, this device is then in emergency stop state, thereby prevent that the overtravel problem from appearing in the device, the security of the device is improved.
The workpiece 1 proposed in the above embodiment 1 is a T-shaped thin-walled workpiece, but the present invention may also perform rolling correction on workpieces having edge strip side walls, such as an aviation bulkhead workpiece, a U-shaped workpiece, and the like, which are not described in detail in the embodiments, and the implementation is described only by taking the T-shaped workpiece as an embodiment.
Example 2
Example 2 is a modification of example 1.
The embodiment utilizes the precise rolling correction device for aviation thin-wall metal structural parts provided by the embodiment 1. Because the size of aeronautical structure spare differs, for being used for extra-large-scale aeronautical structure spare to rectify, adopt manipulator bracket device to connect and increase power cylinder base and driver machine base, realize many synchronous many roll extrusion correcting units of roll extrusion correction.
As shown in fig. 5, when used in combination with a robot, the booster cylinder mount 51 and the drive machine mount 52 of a single rolling press are connected to a robot arm bracket 50, and the robot arm bracket 50 is mounted on the robot arm or the machine tool. And connecting the device control box of each rolling correction device to the device control box of any one rolling correction device, wherein the specific device control box is used as a main control box to control a plurality of rolling correction devices. The number of the rolling mechanisms is required to be adjusted according to actual conditions, one rolling correction device can be used by an operator for a relatively small thin-wall structural member, and a plurality of rolling correction devices can be controlled by a manipulator or a machine tool for combined use for a relatively large thin-wall structural member.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (10)
1. An accurate rolling correction device for an aviation thin-wall metal structural member is characterized by comprising a support, a force increasing device, a transmission rolling device, a force measuring rolling device, an approach buffering device and a digital display system;
the force increasing device and the transmission rolling device are arranged on the bracket, and the central lines of the two devices are aligned and arranged in a coplanar manner; the force increasing device adopts a wedge-shaped force increasing amplifying mechanism, and outputs a rolling load meeting the requirement of the corrected part; the transmission rolling device is used for detecting a rolling position in real time and feeding back a position signal to the digital display system;
the force measuring and rolling device and the approach buffer device are arranged at the output end of the force increasing device, wherein the force measuring and rolling device adopts a double force measuring mechanism and detects and feeds back a tail end rolling load and a tail end output load of the air cylinder in real time to form a closed loop system of the device; the approach buffer device is used for buffering the mechanism and preventing the overtravel of the device;
the digital display system obtains the deformation of the rolling device according to the position signal fed back by the transmission rolling device, outputs the required correction load value by the digital display system, and inputs the correction load value into the force measurement rolling device, and the deformation and the rolling load form a group of complete data pairs.
2. The accurate rolling correction device for the aviation thin-wall metal structural part according to claim 1, characterized in that the force increasing device comprises a force increasing cylinder, a force increasing slide rail, a force increasing slide table, a force increasing output connecting block, a force increasing rotating shaft and a wedge-shaped output block; increase power cylinder and increase the power pivot and link to each other through increasing power output connecting block as output power component, increase power slide rail and increase power slip table and regard as the direction component of roll extrusion in-process, wedge output piece install on increasing power slip table, its wedge face and increase power pivot cooperation.
3. The precise roll calibration device for aerospace thin-walled metal structural members of claim 2, wherein the force measuring roll device comprises a cantilevered force sensor, a roll bearing and a first force sensor module, the cantilevered force sensor module being mounted within a pin mounting hole of the wedge output block; the rolling bearing is installed on the upper end of the cantilever type force sensor, and the first force sensor module is installed in the force increasing output connecting block.
4. The accurate rolling correction device for aviation thin-wall metal structural members as claimed in claim 2, wherein the proximity buffer device comprises a first buffer rubber pad, a second buffer rubber pad, a first proximity switch and a second proximity switch, the first buffer rubber pad and the second buffer rubber pad are used as buffer elements and are respectively provided with the lower end and the upper end of the force increasing output connecting block, the first proximity switch and the second proximity switch are used as position control elements, the first proximity switch is arranged at the upper end of the force increasing output connecting block, and the second proximity switch is arranged at the rear side of the protective shell of the force increasing device.
5. The precise rolling correction device for aviation thin-wall metal structural parts as claimed in claim 3, wherein the transmission rolling device comprises a driving machine, a rotating shaft output mechanism and an active rolling mechanism, the driving machine is used as a transmission power element of the rolling device, the rotating shaft output mechanism is arranged on a rotating shaft output mechanism mounting position of the support and connected with an output end of the driving machine, and the active rolling mechanism is arranged at the upper end of the rotating shaft output mechanism.
6. The precise rolling correction device for aviation thin-wall metal structural members as claimed in claim 5, wherein the rotating shaft output mechanism comprises an output shaft support, an output rotating shaft and a micro encoder, the output shaft support is used as a supporting element, the output rotating shaft is used as a power transmission element, wherein the axis of the output rotating shaft, the axis of a cantilever type force sensor in the force measuring rolling device and the axis of a plunger rod of a force increasing cylinder in the force increasing device are aligned and coplanar in three lines, and the micro encoder is coaxially installed at the lower end of the output rotating shaft.
7. The precise rolling correction device for aviation thin-wall metal structural members as claimed in claim 6, wherein the active rolling mechanism mainly comprises a rolling wheel, a rolling baffle, a rolling height adjusting bolt and an upper end roller shaft collar, the upper end roller shaft collar is coaxially installed with the output rotating shaft and is provided with a guide strip, the rolling wheel is connected to the output rotating shaft, the upper surface of the rolling wheel is aligned with the upper surface of a rolling bearing of the force measuring rolling device, the rolling baffle is provided with a guide groove matched with the guide strip of the upper end roller shaft collar, and the rolling height adjusting bolt adjusts the height of the rolling baffle through the screwing amount of the adjusting bolt.
8. The precise rolling correction device for aviation thin-wall metal structural parts as claimed in claim 1, wherein the digital display system comprises a follow-up digital display screen and a device control box, the follow-up digital display screen is used for displaying interactive elements in the rolling process, and the control box is provided with power supply access interfaces, data transmission interfaces and data transmission interfaces for feeding back and controlling the state of the rolling process.
9. The precise roll finishing apparatus for aerospace thin-walled metal structures of claim 1, further comprising a hand-held auxiliary device mounted on the force increasing device and the drive rolling device.
10. The precise rolling correction device for aviation thin-wall metal structural members as claimed in claim 1, further comprising a manipulator bracket device, wherein the manipulator bracket device is connected with the booster cylinder base of the booster device and the driver base of the transmission rolling device.
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| CN202010843128.XA CN112246916B (en) | 2020-08-20 | 2020-08-20 | A accurate roll extrusion correcting unit for aviation thin wall metal structure |
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| CN202010843128.XA CN112246916B (en) | 2020-08-20 | 2020-08-20 | A accurate roll extrusion correcting unit for aviation thin wall metal structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039624B2 (en) * | 1972-11-22 | 1975-12-18 | ||
| CN201140241Y (en) * | 2007-11-22 | 2008-10-29 | 山东大学 | Rolling shape-righting apparatus |
| CN201253645Y (en) * | 2008-08-22 | 2009-06-10 | 成都飞机工业（集团）有限责任公司 | Rolling shape-correction tool |
| KR20140042103A (en) * | 2012-09-27 | 2014-04-07 | 현대제철 주식회사 | Reforming apparatus for steel |
| CN104384255A (en) * | 2014-09-25 | 2015-03-04 | 北京航空航天大学 | Shape-correcting device special for aerial irregularly shaped extruding structure component |
| CN109226351A (en) * | 2018-09-06 | 2019-01-18 | 泰安华鲁锻压机床有限公司 | A kind of horizontal straightening machine of full-automatic H profile steel |
| CN208744648U (en) * | 2018-09-30 | 2019-04-16 | 三峡大学 | A kind of two-stage reinforced self-locking formula air-actuated jaw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9744578B2 (en) * | 2015-04-20 | 2017-08-29 | Siemens Medical Solutions Usa, Inc. | Crystal growth crucible re-shaper |
-
2020
- 2020-08-20 CN CN202010843128.XA patent/CN112246916B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039624B2 (en) * | 1972-11-22 | 1975-12-18 | ||
| CN201140241Y (en) * | 2007-11-22 | 2008-10-29 | 山东大学 | Rolling shape-righting apparatus |
| CN201253645Y (en) * | 2008-08-22 | 2009-06-10 | 成都飞机工业（集团）有限责任公司 | Rolling shape-correction tool |
| KR20140042103A (en) * | 2012-09-27 | 2014-04-07 | 현대제철 주식회사 | Reforming apparatus for steel |
| CN104384255A (en) * | 2014-09-25 | 2015-03-04 | 北京航空航天大学 | Shape-correcting device special for aerial irregularly shaped extruding structure component |
| CN109226351A (en) * | 2018-09-06 | 2019-01-18 | 泰安华鲁锻压机床有限公司 | A kind of horizontal straightening machine of full-automatic H profile steel |
| CN208744648U (en) * | 2018-09-30 | 2019-04-16 | 三峡大学 | A kind of two-stage reinforced self-locking formula air-actuated jaw |
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| CN112246916A (en) | 2021-01-22 |
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