Automatic metal ring piece correcting equipment with size being adjusted in stepless mode and correcting method thereof
Technical Field
The invention relates to the technical field of machining and manufacturing of mechanical parts, in particular to automatic size-stepless-adjustment metal ring piece correcting equipment and a correcting method thereof.
Background
In the mechanical part manufacturing industry, the metal circular ring is often processed and manufactured, and the product is simple and convenient and has wide application. However, during casting, the ring may warp or become out of round, resulting in failure to meet assembly and service requirements. After a metal ring is produced in a factory, the metal ring is generally stacked, the warping deformation of the ring can be corrected to a certain degree, and the effect is limited. Moreover, the metal ring may be deformed during use, and the deformed metal ring is usually returned to a factory for correction, and the factory generally uses manpower to perform correction, which is time-consuming and labor-consuming. Meanwhile, most of the existing correction and correction processes are generally used for performing cold correction on the metal ring, and the metal ring is difficult to perform hot correction, but obviously, the ring subjected to hot correction is easier to correct.
Through retrieval, relevant patents have been published on equipment for correcting circular metal workpieces, for example, the chinese patent application nos.: 202010667990.X, filing date: the invention is named as follows on 7-month and 13-month 2020: a roundness correction device for ring-type deformed pieces. The correcting device in the application comprises a shaping frame, a movable assembly and a fixed assembly, wherein the movable assembly and the fixed assembly are arranged on the shaping frame; the fixed assembly is arranged below the movable assembly and comprises a shaping disc seat, positioning bearings and a clamping seat, the shaping disc seat is fixedly arranged on the shaping frame, the number of the positioning bearings is 2, the positioning bearings are arranged below the arc-shaped plate in parallel, and a length measuring instrument is arranged in the clamping seat. Although the device of this application can replace the operation mode of artifical correction to a certain extent, can not once only carry out whole correction, complex operation, when correcting to the ring under the different specifications, need dismantle the device again and adjust the position, inefficiency.
For another example, the chinese patent application No. is: 201810625874.4, filing date: in 2018, 6 and 18 months, the invention and creation name is as follows: a flattening device for metal ring parts. Level device in this application includes workstation, fixing device, leveling device and cushion cap, fixing device sets up on the workstation, leveling device sets up on the workstation, the cushion cap sets up the side at the workstation, fixes the metal ring through the last movable roller of fixing device in the operation, and wheel and flattening down wheel are pressed to its common roll on the flattening on the leveling device, carries out the flattening with upwarping or the distortion of metal ring. This application can correct and polish the ring workpiece surface of deformation to a certain extent, but it is when correcting, can only correct at one end to through the transmission of gyro wheel, thereby slowly correct whole ring, correct efficiency lower.
Therefore, a novel metal circular ring workpiece correction device needs to be designed, and on one hand, radial non-roundness and upper and lower surface non-roundness of a metal circular ring can be effectively corrected; on the other hand, the correction efficiency and the automation degree of the correction operation are improved.
Disclosure of Invention
1. Problems to be solved
The invention aims to overcome the defects of relatively poor correction effect, complex operation, low efficiency, waiting for improvement of automation degree and the like in the conventional correction and trimming of a circular metal ring piece, and provides automatic correction equipment for the metal ring piece with stepless size adjustment and a correction method thereof. By adopting the technical scheme of the invention, the problems can be effectively solved, the cost is economic, the correction of the metal rings with different specifications can be met, no equipment needs to be manually disassembled, and the operation is simple and rapid.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the invention relates to automatic size stepless regulation metal ring piece correcting equipment, which comprises a base, and a rounding mechanism, a flattening mechanism and a measuring mechanism which are arranged on the base, wherein the rounding mechanism, the flattening mechanism and the measuring mechanism are arranged on the base, and the automatic size stepless regulation metal ring piece correcting equipment comprises:
the rounding mechanism comprises an inner pressing plate and an outer pressing plate which are symmetrically arranged inside and outside, and the installation positions and the intervals of the inner pressing plate and the outer pressing plate are adjustable; the inner pressing plate and the outer pressing plate are respectively provided with a rounding roller which rotates through a driving motor and is used for correcting the roundness of the inner diameter and the outer diameter of the metal ring piece;
the leveling mechanism comprises an upper pressing plate and a lower pressing plate which are arranged in an up-and-down symmetrical mode, and the installation positions and the intervals of the upper pressing plate and the lower pressing plate are adjustable;
the measuring mechanism comprises a horizontal measuring part and a vertical measuring part, the horizontal measuring part is used for detecting the radial roundness of the metal ring piece, and the vertical measuring part is used for detecting the flatness of the upper surface and the lower surface of the metal ring piece.
Furthermore, the circle correcting mechanism and the leveling mechanism are respectively provided with a plurality of groups and are distributed at equal intervals along the circumferential direction, and the circle correcting mechanism and the leveling mechanism are alternately distributed.
Furthermore, the power box comprises a first power box, a second power box and a third power box, wherein driving motors are arranged in the first power box and the second power box, output shafts of the driving motors are connected with the adjusting rods in a driving mode, and a driving motor is arranged in the third power box, and an output shaft of the driving motor is connected with the adjusting screw in a driving mode; wherein:
a driving motor is arranged in the first power box, the driving motors are respectively connected with adjusting rods, and a sliding rod is fixedly connected to one power box; the adjusting rod and the sliding rod penetrate through the lower pressing plate, the adjusting rod is in threaded connection with the lower pressing plate, and the sliding rod is in sliding connection with the lower pressing plate;
two driving motors are symmetrically arranged in the second power box, the two driving motors are respectively connected with adjusting rods, and a sliding rod is fixedly connected to the second power box; the adjusting rods and the sliding rods penetrate through the inner pressing plate and the outer pressing plate, the two adjusting rods are in threaded connection with the outer pressing plate, and one adjusting rod is in threaded connection with the inner pressing plate; the sliding rods are connected with the inner pressing plate and the outer pressing plate in a sliding mode and used for guiding and limiting the movement of the inner pressing plate and the outer pressing plate, and the diameter of each sliding rod is larger than that of each adjusting rod;
the third power box is arranged at the top of the upper pressure plate, the interior of the third power box is connected with an adjusting screw rod through a driving motor, the adjusting screw rod penetrates through the upper pressure plate and then is in threaded connection with the lower pressure plate, and the adjusting screw rod is also in threaded connection with the upper pressure plate; the top of the lower pressing plate is provided with a telescopic guide rod, and the upper part of the telescopic guide rod is inserted into the upper pressing plate and used for guiding the movement of the upper pressing plate.
Furthermore, the two sliding rods penetrating through the inner pressing plate and the outer pressing plate are symmetrically arranged respectively.
Furthermore, the inner pressing plate and the outer pressing plate of each rounding mechanism are processed into a concave shape, rounding rollers are rotatably arranged at the concave parts, the rounding rollers are distributed along the vertical direction, and the distance between the two rounding rollers is slightly smaller than the difference value between the inner diameter and the outer diameter of the metal ring piece; the upper pressing plate of each leveling mechanism is processed into a concave shape, the lower pressing plate is processed into an L shape, leveling rollers are rotatably arranged at the concave parts of the upper pressing plate and the lower pressing plate, the leveling rollers are distributed along the horizontal direction, and the distance between the two leveling rollers is slightly smaller than the difference value of the upper surface and the lower surface of the metal ring piece.
Furthermore, two opposite surfaces of the upper pressing plate and the lower pressing plate are provided with slopes, and the thickness close to the inner side is larger than that of the outer side; the leveling rollers which are symmetrically arranged up and down are all processed into a conical structure, and the diameter of one end of the leveling rollers close to the inner side of the metal ring piece is smaller than that of one end of the leveling rollers far away from the inner side of the metal ring piece.
Furthermore, the horizontal measuring part comprises laser displacement sensors arranged on the inner side and the outer side of the metal ring piece, and the vertical measuring parts are arranged on the laser displacement sensors on the upper side and the lower side of the metal ring piece.
Furthermore, the two ends of the rounding roller and the two ends of the leveling roller are both installed through bearing seats, and one ends of the rounding roller and the leveling roller are both connected with an output shaft of the driving motor.
Furthermore, limiting rings are arranged at the centers of the roll necks at the two ends of the leveling roll and at the centers of the roll necks at the two ends of the leveling roll, and the mounting cavity of the bearing block is rotatably connected with the limiting rings through rolling bearings.
The invention relates to a size stepless regulation automatic metal ring piece correcting method, which adopts the correcting equipment to correct the metal ring piece and specifically comprises the following steps:
step one, adjusting an inner pressing plate, an outer pressing plate, an upper pressing plate and a lower pressing plate to appropriate positions simultaneously according to the size of a metal ring piece; then, simultaneously adjusting the distance between the inner pressing plate and the outer pressing plate and the distance between the upper pressing plate and the lower pressing plate to ensure that the distance between the two leveling rollers on the inner pressing plate and the outer pressing plate is greater than the difference between the inner diameter and the outer diameter of the metal ring piece, and the distance between the two leveling rollers on the upper pressing plate and the lower pressing plate is greater than the difference between the upper surface and the lower surface of the metal ring piece;
step two, after the metal ring piece is placed to the equipment, the distance between the inner pressing plate and the outer pressing plate and the distance between the upper pressing plate and the lower pressing plate are adjusted simultaneously, so that the rounding roller and the leveling roller respectively clamp the inner side, the outer side, the upper side and the lower side of the metal ring piece;
driving the rounding roller and the leveling roller to rotate, driving the metal ring piece to rotate, and correcting the roundness and the flatness of the metal ring piece; in the correction process, a measuring mechanism collects the size data of the metal ring piece in real time;
and step four, stopping the rotation of the straightening roll and the straightening roll after the size data of the metal ring piece meet the processing requirements, then adjusting the distance between the inner pressing plate and the outer pressing plate and the distance between the upper pressing plate and the lower pressing plate, and taking down the corrected metal ring piece.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention discloses automatic size stepless-adjustment metal ring piece correcting equipment which comprises a base, and a circle correcting mechanism, a flattening mechanism and a measuring mechanism which are arranged on the base, wherein the circle correcting mechanism is used for correcting the roundness of a metal ring piece, the flattening mechanism is used for correcting the flatness of the metal ring piece, and the measuring mechanism is used for measuring the size data (the diameter and the thickness data of the ring) of the metal ring piece in real time in the correcting process. Through carrying out optimal design to its overall structure, can once only revise the warpage and the out-of-round condition of metal ring to avoid many times local correction loaded down with trivial details, effectively improved work efficiency.
(2) According to the automatic correction equipment for the metal ring piece with the stepless size adjustment function, the specific structures of the circle correction mechanism and the flattening mechanism are designed, so that the automatic adjustment of the installation positions and the intervals of the circle correction mechanism and the flattening mechanism is effectively realized, the correction of the metal rings with different sizes can be met, any equipment does not need to be manually disassembled, the operation is simple and rapid, and the automatic production is favorably realized. Meanwhile, the metal ring pieces except for the ring shape can be corrected by adjusting the mounting positions of the rounding mechanism and the flattening mechanism, the use range of the equipment is further expanded, and the practicability is high. In addition, through the setting of multiunit rounding mechanism and flattening mechanism to optimize its installation distribution, thereby further improved the correction effect, make whole correction process can accomplish fast.
(3) According to the automatic size-stepless-adjustment metal ring piece correcting equipment, the two opposite surfaces of the upper pressing plate and the lower pressing plate are provided with the slopes, the vertically symmetrically-arranged leveling rollers are processed into the conical structures, the diameter of one end, close to the inner side of the metal ring piece, of each leveling roller is smaller, the diameter of one end, far away from the inner side of the metal ring piece, of each leveling roller is larger, and the difference of linear speeds of the inner side and the outer side of the metal ring piece can be effectively considered through the design, so that the metal ring piece can rotate more stably, the stable correction can be better guaranteed, and the service life of the equipment can be prolonged.
(4) The automatic correction equipment for the metal ring piece with the stepless size adjustment can be used for hot correction and cold correction, greatly meets the use requirements of different environments, has higher automation degree, reduces the artificial participation, and is time-saving and labor-saving; meanwhile, the laser displacement sensor is used for measuring in the correction process, so that the detection precision and the detection efficiency are obviously improved.
(5) According to the automatic correction method for the metal ring piece with the stepless size adjustment, the equipment is adopted to correct and round the metal ring piece, the radial out-of-roundness and the up-down surface unevenness of the metal ring piece can be effectively corrected, compared with the conventional manual correction, the correction effect is effectively guaranteed, the correction efficiency and the correction automation degree are obviously improved, the labor cost is favorably reduced, and the economic benefit is better.
Drawings
Fig. 1 is a schematic structural diagram of an automatic straightening device for a metal ring piece with stepless size adjustment, which is disclosed by the invention;
FIG. 2 is a schematic top view of the automatic straightening device for a metal ring with steplessly adjustable size according to the present invention;
FIG. 3 is a schematic view of the installation structure of the guide rail according to the present invention;
FIG. 4 is a schematic structural diagram of a rounding mechanism according to the present invention;
FIG. 5 is a schematic view of a mounting structure of a rounding roller in the rounding mechanism of the present invention;
FIG. 6 is a schematic structural view of the leveling mechanism of the present invention;
FIG. 7 is a schematic view of the mounting structure of the upper and lower pressing plates in the leveling mechanism of the present invention;
FIG. 8 is a schematic view of the mounting structure of the leveling rolls in the leveling mechanism of the present invention.
In the figure:
1. a base; 11. a first power box; 12. a second power box; 13. a slide bar; 14. adjusting a rod;
2. a work table; 21. a receding groove;
31. an inner pressure plate; 32. an outer pressing plate; 33. a rounding roller; 34. a first bearing housing; 35. a first threaded through hole; 36. a first light hole;
41. an upper pressure plate; 42. a lower pressing plate; 43. leveling rollers; 44. a second bearing housing; 45. a second threaded through hole; 46. a second light hole; 47. adjusting the screw rod; 48. a telescopic guide rod; 49. a third power box;
51. a first laser displacement sensor; 52. a second laser displacement sensor; 53. a third laser displacement sensor; 54. a fourth laser displacement sensor; 55. a fifth laser displacement sensor;
6. a metal ring member; 7. a rolling bearing; 8. a limit ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 8, the automatic metal ring straightening device with the stepless size adjustment function of the embodiment includes a base 1, and a rounding mechanism, a leveling mechanism and a measuring mechanism which are mounted on the base 1, where the base 1 can be processed into a rectangular or circular structure according to actual needs, in the embodiment, a workbench 2 is arranged above the top of the rectangular structure, a yielding groove 21 is processed on the workbench 2 at a position corresponding to the rounding mechanism and the leveling mechanism, and the position adjustment of the rounding mechanism and the leveling mechanism is facilitated by the arrangement of the yielding groove 21.
The rounding mechanism comprises an inner pressing plate 31 and an outer pressing plate 32 which are arranged in an internal-external symmetry mode, and the installation position and the distance of the inner pressing plate and the outer pressing plate can be adjusted (any adjusting device can be adopted). The inner pressing plate 31 and the outer pressing plate 32 are both processed into a concave shape, and the concave part is rotatably provided with a rounding roller 33. Specifically, as shown in fig. 1 and 3, the rounding roller 33 is installed along the vertical direction, both ends of the rounding roller 33 are rotatably installed on the upper and lower horizontal ear plates of the inner and outer pressing plates 31 and 32, respectively, and the rounding roller 33 is controlled by a driving motor (not shown) to rotate for correcting the roundness of the inner and outer diameters of the metal ring 6. When the metal ring part is corrected, the distance between the pair of rounding rollers 33 needs to be controlled to be slightly smaller than the difference between the inner diameter and the outer diameter of the metal ring part 6, so that the metal ring part 6 can be clamped (the two rounding rollers 33 are tightly attached to the inner side and the outer side of the metal ring part 6), when one of the rounding rollers 33 rotates (namely, one of the rounding rollers 33 serves as a driving roller and the other serves as a driven roller), the metal ring part 6 is driven to move by virtue of friction force, so that the rounding roller 33 on the other side is driven to roll, and further, the inner diameter and the outer diameter out-of-roundness of the metal ring part 6 are corrected and corrected.
As shown in fig. 1 and 6, the leveling mechanism includes an upper pressing plate 41 and a lower pressing plate 42 that are disposed vertically symmetrically and whose installation positions and intervals can be adjusted (any one of the existing adjusting devices can be used), the upper pressing plate 41 is processed into a "concave" shape, the lower pressing plate 42 is processed into an "L" shape, the recessed portions of the upper pressing plate 41 and the lower pressing plate 42 can be rotatably installed with leveling rollers 43, and the leveling rollers 43 are installed along the horizontal direction and are controlled to rotate by a driving motor (not shown in the figures) for correcting the upper and lower flatness of the metal ring 6. When the metal ring member 6 is corrected, the distance between the pair of leveling rollers 43 needs to be controlled to be slightly smaller than the difference between the upper surface and the lower surface of the metal ring member 6, so that the metal ring member 6 is clamped between the two leveling rollers 43, and when one of the leveling rollers 43 rotates (namely, one leveling roller 43 serves as a driving roller and the other one serves as a driven roller), the metal ring member 6 is driven by friction force to move, so that the leveling roller 43 on the other side is driven to roll, and the correction of the uneven upper surface and the uneven lower surface of the metal ring member 6 are completed. Similarly, if special needs exist, for example, when the metal ring member 6 is heavy and one driving roll is difficult to drive the whole workpiece to move, the two leveling rolls 43 can be controlled to rotate in different directions, so that the metal ring member 6 can be moved conveniently, and the leveling efficiency can be improved.
The measuring mechanism comprises a horizontal measuring part and a vertical measuring part, the horizontal measuring part is used for detecting the radial roundness of the metal ring piece 6, and the vertical measuring part is used for detecting the flatness of the upper surface and the lower surface of the metal ring piece 6. Specifically, as shown in fig. 1-2 and fig. 6, the horizontal measuring part and the vertical measuring part both adopt the laser displacement sensor to collect size data of the metal ring piece during correction, so that the detection precision and the detection efficiency are remarkably improved. The horizontal measuring part comprises a first laser displacement sensor 51, a second laser displacement sensor 52 and a third laser displacement sensor 53 which are arranged at the top of the workbench 2 (the three laser displacement sensors are all mounted at positions avoiding the position of the rounding mechanism and the position of the leveling mechanism, so that emitted laser is not blocked, and the inner and outer diameter data of the metal ring piece 6 can be conveniently acquired in real time). The first laser displacement sensor 51 and the third laser displacement sensor 53 are symmetrically arranged on two opposite sides of the outer diameter of the metal ring part 6, and the second laser displacement sensor 52 is arranged in the center of the workbench 2. The vertical measuring part comprises a fourth laser displacement sensor 54 and a fifth laser displacement sensor 55 which are arranged in an up-and-down symmetrical mode, the fourth laser displacement sensor 54 is installed on the upper pressing plate 41, the fifth laser displacement sensor 55 is installed on the lower pressing plate 42, and the fourth laser displacement sensor 54 and the fifth laser displacement sensor 55 are arranged to avoid the installation position of the leveling roller 43, so that the thickness data (namely the difference value of the upper surface and the lower surface) of the metal ring part 6 can be collected conveniently.
It should be noted that, in order to enable the apparatus of the present invention to perform thermal correction on the metal ring, the position of the laser displacement sensor is set to a position far away from the metal ring 6 as much as possible, so as to effectively avoid the hot workpiece from baking the metal ring, and if necessary, a thermal insulation protective cover may be also provided to protect the laser displacement sensor, which is further beneficial to improving the service life of the sensor and reducing the production cost.
In addition, in order to further improve the automation degree of the equipment, the equipment can also be controlled by adopting the existing mature PLC control system, each driving device in the equipment is programmed and controlled, only corresponding processing parameters are required to be input into the system, so that the correction and the trimming of the out-of-roundness and the flatness of the metal ring piece 6 can be realized, the warping and the out-of-roundness of the metal ring piece 6 can be automatically corrected at one time, the complexity of multiple times of local correction is avoided, and the working efficiency is effectively improved.
Example 2
As shown in fig. 1 to 8, the automatic straightening device for a metal ring piece with stepless size adjustment of the present embodiment has a main structure substantially the same as that of embodiment 1, and mainly differs therefrom in that: as shown in fig. 1, the circle-straightening mechanism and the flattening mechanism are provided with a plurality of groups and are distributed at equal intervals along the circumferential direction, the circle-straightening mechanism and the flattening mechanism are alternately distributed, and the installation distribution of the circle-straightening mechanism and the flattening mechanism is optimized through the arrangement of the plurality of groups of circle-straightening mechanisms and flattening mechanisms, so that the straightening effect is further improved, and the whole straightening process can be quickly completed. Meanwhile, the specific number of the circle correcting mechanism and the flattening mechanism can be determined according to the actual situation (in order to ensure better straightening effect, more than two circle correcting mechanisms and flattening mechanisms are preferably arranged respectively), and the invention is not particularly limited. In this embodiment, four rounding mechanisms and four leveling mechanisms are provided as an example.
The power box is arranged on the top of the base 1 corresponding to each rounding mechanism and each flattening mechanism and is used for accommodating driving equipment, so that the positions of the rounding mechanisms and the flattening mechanisms and the distance between each group of rounding rollers 33 and the flattening rollers 43 can be adjusted, the straightening of metal ring pieces 6 with different sizes and specifications can be met, manual disassembly of any equipment is not needed, the operation is simple and rapid, and the automatic production is facilitated; on the other hand, the metal ring piece 6 except the ring shape can be corrected by adjusting the installation positions of the rounding mechanism and the flattening mechanism, so that the application range of the equipment is further expanded, and the practicability is high.
Specifically, the power boxes include a first power box 11, a second power box 12 and a third power box 49, wherein, as shown in fig. 2 and fig. 3, each leveling mechanism includes two first power boxes 11 symmetrically arranged, one power box is arranged at the edge of the base 1, the other power box is arranged at the central region of the base 1, and a driving motor (not shown in the figures) can be installed in the first power box 11 to provide driving force for driving the lower pressing plate 42 of the leveling mechanism to move.
The lower end of the lower pressure plate 42 is provided with a second threaded through hole 45 and a second unthreaded hole 46 which are symmetrical, the output shaft of the driving motor in the first power box 11 is connected with the adjusting rod 14, the adjusting rod 14 penetrates through the lower pressure plate 42 through the second threaded through hole 45, threads matched with the second threaded through hole 45 are formed on the adjusting rod 14, and two ends of the adjusting rod can be rotatably arranged in the two first power boxes 11. Meanwhile, a sliding rod 13 is fixedly connected between the two symmetrically arranged first power boxes 11 of each group of leveling mechanisms, and the sliding rod 13 penetrates through the lower pressing plate 42 through a second unthreaded hole 46. Control driving motor rotates during regulation, drives and adjusts pole 14 and rotates, through holding down plate 42 and the screw-thread fit who adjusts pole 14 to the realization is adjusted holding down plate 42 together with top board 41's position, and more importantly, through the setting of slide bar 13, can effectively carry out spacing and direction to the horizontal migration of holding down plate 42, prevents to adjust pole 14 and rotates and drive holding down plate 42 and take place to rotate, thereby has effectively improved the stability and the reliability of adjusting. In addition, the diameter of the sliding rod 13 is slightly smaller than that of the second unthreaded hole 46, so that the influence of friction force can be effectively reduced when the position of the leveling mechanism is adjusted, and the stability of the movement of the lower pressure plate 42 can be improved as much as possible.
The third power box 49 is fixedly installed on the top of the upper press plate 41, and a driving motor (not shown) is installed inside the third power box for providing driving force to complete the distance adjustment between the upper press plate 41 and the lower press plate 42. Specifically, as shown in fig. 6 and 7, an adjusting screw 47 and a telescopic guide rod 48 are provided between the upper platen 41 and the lower platen 42. An output shaft of the driving motor is connected with an adjusting screw rod 47, the adjusting screw rod 47 penetrates through the upper pressure plate 41 and then is in threaded connection with the lower pressure plate 42, and the adjusting screw rod 47 is also in threaded connection with the upper pressure plate 41. The bottom of the telescopic guide rod 48 is fixedly installed on the top of the lower pressure plate 42, and the upper part of the telescopic guide rod is inserted into the upper pressure plate 41 and used for guiding the movement of the upper pressure plate 41. Drive adjusting screw 47 through rotating driving motor and rotate, the screw thread that meshing top board 41 and holding down plate 42 inner chamber were equipped with, because flexible guide arm 48 carries on spacingly and direction to top board 41 for top board 41 can't take place to rotate, and holding down plate 42 also can't rotate, and adjusting screw 47 lower part meshes with the screw thread of holding down plate 42 inner chamber, thereby drives top board 41 and wholly removes along vertical direction, thereby has realized the distance adjustment between two leveling rollers 43.
As shown in fig. 1-4, each group of rounding mechanisms includes two symmetrically disposed second power boxes 12, one power box is disposed at the edge of the base 1, and the other power box is disposed in the central region of the base 1. Two driving motors (not shown in the figure) are symmetrically arranged in the second power box 12, and the two driving motors can be arranged in one second power box 12 according to actual requirements, and can also be respectively arranged in the two second power boxes 12. The output shafts of the two driving motors are respectively connected with adjusting rods 14, the two adjusting rods 14 penetrate through the inner pressing plate 31 and the outer pressing plate 32 through first threaded through holes 35 (or first unthreaded holes 36), threads matched with the first threaded through holes 35 are machined on the adjusting rods, and two ends of the adjusting rods can be rotatably installed in the two second power boxes 12. It should be noted that only one adjusting rod 14 is connected with the inner pressing plate 31 through the screw thread, and the other adjusting rod 14 is connected with the inner pressing plate 31 through the first unthreaded hole 36.
Similarly, a sliding rod 13 is fixedly connected between two symmetrically arranged second power boxes 12 of each group of rounding mechanisms, the sliding rod 13 respectively penetrates through the inner pressing plate 31 and the outer pressing plate 32 through a first unthreaded hole 36, and the diameter of the sliding rod 13 is larger than that of the adjusting rod 14. During adjustment, a driving motor is controlled to rotate to drive an adjusting rod 14 to rotate, and the positions of the inner pressing plate 31 and the outer pressing plate 32 are integrally adjusted through the threaded fit of the inner pressing plate 31 and the outer pressing plate 32 with the adjusting rod 14. Then, another driving motor is controlled to rotate to drive another adjusting rod 14 to rotate, and the adjusting rod 14 is connected with the unthreaded hole of the inner pressing plate 31, so that the adjusting rod can freely rotate in the inner cavity of the inner pressing plate 31, the position of the inner pressing plate 31 cannot move, and only can be meshed with the outer pressing plate 32 to move, so that the adjustment of the distance between the inner pressing plate 31 and the outer pressing plate 32 is realized.
Meanwhile, through the arrangement of the sliding rod 13, the horizontal movement of the inner pressing plate 31 and the horizontal movement of the outer pressing plate 32 can be effectively limited and guided, the adjusting rod 14 is prevented from rotating to drive the inner pressing plate 31 and the outer pressing plate 32 to rotate, and therefore the adjusting stability and the adjusting reliability are effectively improved. In addition, the diameter of the sliding rod 13 is slightly smaller than that of the first unthreaded hole 36, so that the influence of friction can be effectively reduced when the position of the leveling mechanism is adjusted, and the stability of the movement of the inner platen 31 and the outer platen 32 can be improved as much as possible. More preferably, the two sliding rods 13 penetrating through the inner platen 31 and the outer platen 32 are symmetrically arranged, so that the moving stability of the inner platen 31 and the outer platen 32 can be further improved.
In addition, more optimally, in this embodiment, three first unthreaded holes 36 and one first threaded through hole 35 may also be respectively provided on the inner pressing plate 31 and the outer pressing plate 32, and the first threaded through holes 35 on the inner pressing plate 31 and the outer pressing plate 32 are arranged in a staggered manner, when the positions of the inner pressing plate 31 and the outer pressing plate 32 are adjusted, one adjusting rod 14 may be respectively controlled to rotate, so as to realize independent control of movement of the inner pressing plate 31 and the outer pressing plate 32, when the distance in front of the inner pressing plate 31 and the outer pressing plate 32 is adjusted, one adjusting rod 14 may be controlled to drive the inner pressing plate 31 or the outer pressing plate 32 to move, and the inner pressing plate 31 and the outer pressing plate 32 may also be controlled to move simultaneously, which is simple and convenient to operate.
Example 3
As shown in fig. 1 to 8, the automatic straightening device for a metal ring piece with stepless size adjustment of the present embodiment has a main structure substantially the same as that of embodiment 2, and mainly differs therefrom in that: the two opposite surfaces of the upper pressing plate 41 and the lower pressing plate 42 are provided with slopes. In the present embodiment, the thickness near the inner side of the ring member 6 is greater than the thickness near the outer side of the ring member 6. Meanwhile, the leveling rollers 43 which are symmetrically arranged up and down are all processed into a conical structure, the diameter of one end of each leveling roller which is close to the inner side of the metal ring piece 6 is smaller than that of one end of each leveling roller which is far away from the inner side of the metal ring piece 6, and the contact surfaces of the upper leveling roller 43 and the lower leveling roller 43 with the metal ring piece 6 can be effectively ensured to be horizontal on the one hand by optimally designing the specific structure of the leveling mechanism. On the other hand, because the inner and outer diameters of the metal ring 6 are different in size, when the leveling roller 43 rotates at a certain speed, the upper and lower surfaces of the metal ring require a slower speed (slower linear speed) near the inner diameter portion and a faster speed (faster linear speed) near the outer diameter portion, and a roller of a conventional shape (such as a cylindrical roller) cannot provide corresponding linear speeds for the speed characteristics of different positions of the upper and lower surfaces of the metal ring. According to the invention, the upper leveling roller 43 and the lower leveling roller 43 are designed into a conical structure, the diameter of the outer part of each roller is larger, so that a larger linear speed required by the metal ring piece 6 can be provided, the diameter of the inner part of each roller is smaller, so that a smaller linear speed required by the metal ring piece 6 can be provided, the use requirement is met, and the correction effect is effectively improved. Similarly, in consideration of the difference between the inner diameter and the outer diameter of the metal ring member 6, the rotating speed of the outer rounding roller 33 needs to be controlled to be higher than that of the inner rounding roller 33, so as to ensure the straightening effect.
In addition, as shown in fig. 1 and fig. 4 to 8, two ends of the rounding roller 33 are installed through a first bearing seat 34, two ends of the leveling roller 43 are installed through a second bearing seat 44, the first bearing seat 34 and the second bearing seat 44 are both provided as split sliding bearing seats, so that the rolling and installation and later maintenance are convenient, and one ends of the rounding roller 33 and the leveling roller 43 are both connected with an output shaft of a driving motor (not shown in the figures). The driving motor can be arranged on the pressing plate, and the existing mature driving equipment such as a hydraulic motor, a steering engine and the like can be adopted, so that the invention does not need to be specifically required.
More optimally, the limiting rings 8 are arranged at the centers of the roll necks at the two ends of the rounding roller (33) and the roll necks at the two ends of the leveling roller 43, the first bearing seat 34 or the second bearing seat 44 are rotatably connected with the limiting rings 8 in the installation cavity (namely in the installation hole) through the installation rolling bearing 7, the roll necks can be effectively protected by arranging the limiting rings 8, and the limiting rings 8 can be maintained by replacing the limiting rings 8 when the roller is worn due to long-term use, so that the production cost can be effectively reduced.
The invention discloses a method for automatically correcting a metal ring piece with a stepless size adjustment function, which corrects the metal ring piece 6 by adopting the correction equipment and specifically comprises the following steps:
firstly, adjusting the positions of a rounding mechanism and a leveling mechanism according to the size of the metal ring piece 6, wherein the size of the inner diameter, the size of the outer diameter and the size of the thickness (namely the difference value of the upper surface and the lower surface). First, the plurality of inner press plates 31, outer press plates 32, upper press plates 41, and lower press plates 42 may be adjusted to appropriate positions at the same time (or sequentially). Then, the distance between the inner pressing plate 31 and the outer pressing plate 32 and the distance between the upper pressing plate 41 and the lower pressing plate 42 are adjusted simultaneously (or sequentially), so that the distance between the two leveling rollers 33 on the inner pressing plate 31 and the outer pressing plate 32 is greater than the difference between the inner diameter and the outer diameter of the metal ring 6, and the distance between the two leveling rollers 43 on the upper pressing plate 41 and the lower pressing plate 42 is greater than the difference between the upper surface and the lower surface of the metal ring 6, thereby facilitating the placement of the metal ring 6.
And step two, manually or by adopting a manipulator, putting the metal ring piece 6 into the equipment, and simultaneously (or sequentially) adjusting the distance between the inner pressing plate 31 and the outer pressing plate 32 and the distance between the upper pressing plate 41 and the lower pressing plate 42 to enable the rounding roller 33 and the leveling roller 43 to clamp the inner side, the outer side, the upper side and the lower side of the metal ring piece 6 respectively.
And step three, driving the rounding roller 33 and the leveling roller 43 to rotate, driving the metal ring piece 6 to rotate, and correcting the roundness and the flatness of the metal ring piece 6. During the straightening process, the measuring mechanism collects the dimensional data of the metal ring part 6 in real time.
And step four, after the size data of the metal ring piece 6 meet the processing requirements, stopping the rotation of the straightening rollers 33 and the straightening rollers 43, then simultaneously (or sequentially) adjusting the distance between the plurality of inner pressing plates 31 and the outer pressing plates 32 and the distance between the upper pressing plate 41 and the lower pressing plate 42, and taking down the straightened metal ring piece 6.
It should be noted that when the metal ring part 6 is corrected, the driving motor is adopted for driving during adjustment, the current mature industrial PLC control system can be adopted for controlling the synchronous (or sequential) start and stop of a plurality of driving motors, the metal ring part 6 can be corrected in a hot mode and can be corrected in a cold mode, the use requirements of different environments are greatly met, the automation degree is high, artificial participation is reduced, time and labor are saved, labor cost is reduced, and economic benefits are good.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.