Straightening device for Corinthian column processing

Abstract

The present application relates to the technical field of column processing, and discloses a straightening device for column processing, which comprises a workbench and a column body, four groups of supports are fixedly installed on the workbench, a rotating rod is arranged on each support, a rotating column is fixedly sleeved on each rotating rod, support plates are fixedly installed on the front and rear sides of the workbench, connecting blocks are fixedly installed on the two support plates, two rotating drives a are fixedly installed on the two connecting blocks, the output shafts of each rotating drive a are fixedly connected with each rotating rod, the column body is placed on the four rotating columns, the corresponding straightening ring can be driven by the straightening cylinder to move transversely to the bending area, a multi-point limiting support structure is formed by the plurality of straightening rings, balanced constraint is formed on the bending section, the defects of traditional single-point pressing straightening force concentration are abandoned, the straightening force is dispersed, and the problems of local compression injury, reverse bending and other secondary deformation of the rod body are avoided, and the one-time straightening forming effect is better.

Description

Technical Field

[0001] This invention relates to the technical field of goring pillar processing, specifically to a straightening device for goring pillar processing. Background Technology

[0002] Tie rods, also known as tie bars, are core load-bearing precision components of large and medium-sized hydraulic forming equipment such as injection molding machines and die casting machines. They are mostly made of high-strength alloy steel through multiple processes such as forging, turning, grinding, and heat treatment. During the processing of tie rods, factors such as forging stress, heat treatment deformation, uneven cutting force, and bumps during transport can easily cause radial bending of the rod. If the bending exceeds the tolerance, it will directly cause uneven assembly clearance, deviation of equipment clamping force, jamming of moving template, rapid wear and oil leakage of seals, and other faults. In severe cases, it will lead to equipment shutdown and scrap. Therefore, the tie rod must be precisely straightened before precision machining. The traditional process first places the tie rod on a V-shaped support, and manually rotates it in sections with a dial indicator to detect the rod's runout. After marking the bending points, it is then transported to a hydraulic straightening table for single-point top pressure straightening. The detection and straightening stations are separate, and the repeated hoisting and transportation of the workpiece is time-consuming and labor-intensive. The manual reading and marking have large errors. The weight of the slender tie rod can easily cause support deflection, which interferes with the detection data. The bending point positioning is inaccurate, the single straightening pass rate is low, and repeated retesting and multiple straightening are often required, resulting in a long production cycle. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a straightening device for processing goring pillars. It has the advantages of dispersing the straightening force, avoiding secondary deformation problems such as local crushing and reverse bending of the pillar, and achieving better straightening and forming results in one step. It also solves the problem of multiple straightening steps and long production cycles.

[0004] To achieve the aforementioned dispersed straightening force and avoid secondary deformation problems such as local crushing and reverse bending of the rod, and to achieve better straightening and forming results in one step, this invention provides the following technical solution: A straightening device for processing tie rods includes a worktable and a tie rod body. Four sets of supports are fixedly installed on the worktable, each set of supports is equipped with a rotating rod, and each rotating rod is fixedly sleeved with a rotating column. Support plates are fixedly installed on the front and rear sides of the worktable, and connecting blocks are fixedly installed on the two support plates. Two rotary drives a are fixedly installed on the two connecting blocks. The output shaft of each rotary drive a is fixedly connected to each rotating rod. The tie rod body is placed on the four rotating columns. Several sliding grooves are provided on the worktable, and a sliding strip is movably connected in each sliding groove. A moving strip is fixedly installed on each sliding strip, and a set of movable blocks is provided on each moving strip. A straightening ring is provided on each set of movable blocks. Several sets of fixed plates are provided on the left and right sides of the worktable, and a mounting plate is fixedly installed on each set of fixed plates. A straightening cylinder is fixedly installed on each mounting plate.

[0005] Preferably, each of the straightening rings consists of two half-rings, each movable block is fixedly equipped with a connecting strip, each connecting strip is provided with an installation block, each installation block is provided with a connecting groove, each connecting strip is movably connected to each connecting groove, and each connecting strip is provided with a plurality of threaded grooves.

[0006] Preferably, each of the threaded grooves is threaded with a bolt, each connecting strip has a baffle attached to its upper side, each baffle has several through slots, each bolt is movably connected to each through slot, and each mounting block is fixedly connected to each half ring.

[0007] Preferably, each of the moving bars is fixedly installed with a dual-axis cylinder, and the two output shafts of each dual-axis cylinder are fixedly connected to each movable block respectively. Long strips are fixedly installed on both the front and rear sides of each moving bar.

[0008] Preferably, a telescopic device is fixedly installed on each of the two support plates, a lifting block is fixedly installed on the output shaft of each of the two telescopic devices, and a rotary drive b is fixedly installed on each of the two lifting blocks.

[0009] Preferably, each of the output shafts of the rotary drive b is provided with a fixing groove, and a square box is fixedly installed in each fixing groove. A shrink strip is movably connected to each of the two square boxes.

[0010] Preferably, a probe is fixedly installed on each of the two shrink strips, and a shrinking device is fixedly installed on each of the two square boxes. The output shafts of the two shrinking devices movably pass through the two square boxes, and the output shafts of the two shrinking devices are fixedly connected to the two shrink strips respectively.

[0011] Preferably, the workbench is provided with a plurality of mounting slots, each mounting slot is provided with a movable seat, each slide is respectively opened on the movable seat, each set of fixing plates is respectively installed on each movable seat, each mounting slot is fixedly installed with a ring rack on the front and rear inner walls, each movable seat is provided with a motor, and each movable seat has a gear fixedly installed on the motor, each gear meshing with each ring rack.

[0012] Compared with the prior art, the present invention provides a straightening device for processing tie rods, which has the following beneficial effects: This straightening device for processing poles can drive the corresponding straightening ring to move laterally to the bending area through a straightening cylinder. Multiple straightening rings form a multi-point limiting support structure, which provides balanced constraint on the bending section. It eliminates the defects of concentrated force in traditional single-point top pressure straightening, disperses the straightening force, and avoids secondary deformation problems such as local crushing and reverse bending of the pole. The straightening effect is better in one step.

[0013] This straightening device for goring column processing integrates a multi-layered adjustment structure including a telescopic device, a lifting block, a rotary drive (b), and a retraction device. The telescopic device raises and lowers the probe height as a whole, while the retraction device drives the retraction bar to control the radial extension distance of the probe. The rotary drive (b) drives the probe to rotate and scan circumferentially. For goring columns of different diameters and lengths, the probe height, radial detection distance, and scanning angle can be flexibly adjusted. Full-size workpiece inspection can be completed without replacing the entire inspection kit, significantly improving the versatility of the tooling and saving the cost of purchasing and storing multiple sets of inspection tooling.

[0014] This straightening device for processing tie rods features a two-part split structure for the straightening ring. Two sets of movable blocks, driven by a dual-axis cylinder, automatically open and close. During workpiece rotation detection, the straightening ring opens without interfering with the rod's rotation. During straightening operations, the two halves close to wrap around the rod, providing uniform ring support. The straightening ring is equipped with detachable mounting blocks, baffles, and bolt locking mechanisms. After removing the bolts and baffles, straightening rings of different inner diameters can be directly pulled upwards for replacement. The replacement operation is simple and quick, requiring no complete disassembly of the support base, and allows for rapid switching to process tie rods of different outer diameters. Compared to traditional fixed straightening sleeves, this significantly reduces the time required for specification changeover and is suitable for mixed-model batch production.

[0015] This straightening device for processing goblin columns features multiple sliding moving bars and straightening rings connected to a worktable slide groove. Multiple independent straightening cylinders are arranged on both sides of the worktable. Each cylinder can individually drive its corresponding straightening ring for fine-tuning and positioning along the workpiece's axial and radial directions. After detecting and identifying the bending area, multiple straightening rings can be placed on both sides of the bending section to form multi-point support. The straightening cylinders apply pressure evenly in segments, abandoning the traditional single-point pressing mode. This disperses the force on the column and ensures a balanced stress distribution, effectively preventing secondary processing defects such as localized depressions and reverse bending during straightening. It achieves a high one-time straightening success rate and reduces repeated testing and straightening processes.

[0016] This straightening device for processing crossbeams integrates rotary support, automatic scanning detection, and multi-point straightening onto a single worktable. The entire bending detection, defect location, and straightening repair can be completed in a single workpiece clamping operation, eliminating the need to transfer the workpiece to a separate straightening station and saving repeated lifting, loading / unloading, and re-alignment steps. The entire process relies on the coordinated operation of various cylinders and rotary drives, significantly reducing manual handling, manual reading and marking, shortening the processing time per piece, adapting to large-scale continuous production, and significantly reducing manual labor intensity and auxiliary handling time.

[0017] This straightening device for chord processing utilizes a rotary drive to control workpiece rotation, a dual-axis cylinder to control the opening and closing of the straightening ring, a multi-layer adjustment mechanism to adjust the probe position, and independent pressure control by the straightening cylinder for straightening. All actuators work in tandem to achieve automated continuous operation, reducing errors caused by manual operation. The device ensures consistent testing and straightening process parameters for the same batch of chords, resulting in high dimensional consistency in workpiece bending correction. This reliably guarantees the dimensional accuracy of subsequent precision machining of the chords and reduces equipment assembly failures caused by unqualified straightening.

[0018] This straightening device for processing pillars uses a motor inside the moving seat to drive the gears to rotate back and forth, which in turn works with a ring rack to rotate the moving seat back and forth. This allows for adjustment of the angles of the two straightening cylinders on it, enabling multi-point and multi-angle straightening processing. Attached Figure Description

[0019] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a three-dimensional structural diagram of the annular rack of the present invention; Figure 3 This is a three-dimensional structural diagram of the fixing plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the support plate of the present invention; Figure 5 This is a three-dimensional structural diagram of the movable block of the present invention; Figure 6 This is a three-dimensional structural diagram of the telescopic device of the present invention; Figure 7 This is a three-dimensional structural diagram of the shrink strip of the present invention.

[0020] In the diagram: 1. Workbench; 2. Fixed plate; 3. Straightening cylinder; 4. Support plate; 5. Connecting block; 6. Rotary drive a; 7. Rotating column; 8. Straightening ring; 9. Long strip; 10. Tie column body; 11. Slide groove; 12. Mounting block; 13. Moving strip; 14. Slide bar; 15. Movable block; 16. Dual-axis cylinder; 17. Mounting plate; 18. Bolt; 19. Baffle; 20. Through groove; 21. Connecting strip; 22. Threaded groove; 23. Connecting groove; 24. Telescopic device; 25. Lifting block; 26. Rotary drive b; 27. Retraction device; 28. Retraction strip; 29. ​​Probe; 30. Square box; 31. Fixed groove; 32. Bracket; 33. Rotating rod; 34. Gear; 35. Ring rack; 36. Mounting groove; 37. Moving seat. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings, wherein the same parts are indicated by the same reference numerals. It should be noted that the terms “front”, “rear”, “left”, “right”, “upper” and “lower”, “bottom surface” and “top surface” used in the following description refer to the directions in the drawings, and the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific part, respectively.

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-7 The present invention provides a technical solution: a straightening device for processing tie rods, comprising a worktable 1 and a tie rod body 10. Four sets of supports 32 are fixedly installed on the worktable 1. Each set of supports 32 is provided with a rotating rod 33, and a rotating column 7 is fixedly sleeved on each rotating rod 33. Support plates 4 are fixedly installed on both the front and rear sides of the worktable 1. Connecting blocks 5 are fixedly installed on each of the two support plates 4. Two rotary drives a6 are fixedly installed on each of the two connecting blocks 5. The output shaft of each rotary drive a6 is fixedly connected to each rotating rod 33. The tie rod body 10 is placed on the four rotating columns 7. Several sliding grooves 11 are provided on the worktable 1. A sliding strip 14 is movably connected in each sliding groove 11. A moving strip 13 is fixedly installed on each sliding strip 14. Each movable bar 13 is equipped with a set of movable blocks 15, and each set of movable blocks 15 is equipped with a straightening ring 8. Several sets of fixed plates 2 are set on the left and right sides of the worktable 1. Each set of fixed plates 2 is fixedly installed with a mounting plate 17, and each mounting plate 17 is fixedly installed with a straightening cylinder 3. By placing the tie column body 10 on the rotating column 7, and then rotating the drive a6, the rotating column 7 can be rotated, thereby rotating the tie column body 10. In this way, the tie column body 10 can be detected by the detection device. When the tie column body 10 is detected to be bent, the straightening cylinder 3 can be used to drive the corresponding straightening ring 8 to move left and right. Each pair of straightening cylinders 3 corresponds to one straightening ring 8, so multiple straightening rings 8 can be used for multi-point support for straightening. Each straightening ring 8 consists of two half-rings. A connecting strip 21 is fixedly installed on each movable block 15. Each connecting strip 21 is equipped with a mounting block 12. Each mounting block 12 has a connecting groove 23. Each connecting strip 21 is movably connected to each connecting groove 23. Each connecting strip 21 has several threaded grooves 22, and each threaded groove 22 is threaded with a bolt 18. A baffle 19 is attached to the upper side of each connecting strip 21. Each baffle 19 has several through grooves 20, and each bolt 18 is movably connected to each through groove 20. Each mounting block 12 is fixedly connected to each half-ring. Each movable bar 13 is fixedly equipped with a dual-axis cylinder 16. The two output shafts of each dual-axis cylinder 16 are fixedly connected to each movable block 15. Each movable bar 13 has a long bar 9 fixedly installed on both its front and rear sides. Each of the two support plates 4 has a telescopic device 24 fixedly installed. Each of the two telescopic devices 24 has a lifting block 25 fixedly installed on its output shaft. Each of the two lifting blocks 25 has a rotary drive b26 fixedly installed on its output shaft. Each rotary drive b26 has a fixed groove 31 on its output shaft. Each fixed groove 31 has a square box 30 fixedly installed in its fixed groove 31. Each of the two square boxes 30 has a retractable strip 28 movably connected to its two retractable strips 28. A probe 29 is fixedly installed on each of the two square boxes 30. A shrinkage device 27 is fixedly installed on each of the two square boxes 30. The output shafts of the two shrinkage devices 27 respectively movably pass through the two square boxes 30. The output shafts of the two shrinkage devices 27 are fixedly connected to two shrinkage strips 28. A dual-axis cylinder 16 can drive a corresponding set of movable blocks 15 to move back and forth. When straightening the tie rod body 10 is required, the dual-axis cylinder 16 can drive the two half-rings of the straightening ring 8 to merge through the movable blocks 15 and the mounting block 12. When testing the tie rod body 10, the dual-axis cylinder 16 can drive the two half-rings of the straightening ring 8 to move in a direction away from each other. The body 10 can be rotated for testing. By removing the bolt 18, the baffle 19 can be removed, allowing the corresponding mounting block 12 and straightening ring 8 to be moved upwards for replacement. This makes it convenient for staff to replace straightening rings 8 of different sizes according to the diameter of the tie rod body 10. The rotation drive b26 can drive the square box 30 to rotate, which can drive the probe 29 to rotate and test the tie rod body 10. The shrinkage device 27 can drive the shrinkage strip 28 to move back and forth, allowing the position of the probe 29 to be adjusted according to the diameter of the tie rod body 10. At the same time, the height of the probe 29 can be adjusted by the telescopic device 24.

[0024] The present invention also provides another embodiment, which differs from the above embodiment in that: the slide groove 11 is formed on the movable seat 37. The worktable 1 has several mounting slots 36, each mounting slot 36 is provided with a movable seat 37, each slide groove 11 is formed on the movable seat 37, each set of fixing plates 2 is installed on each movable seat 37, and each mounting slot 36 has an annular rack 35 fixedly installed on its front and rear inner walls. Each movable seat 37 has a motor, and each motor in each movable seat 37 has a gear 34 fixedly installed on it. Each gear 34 meshes with each annular rack 35. Each movable seat 37 is movably connected to each annular rack 35 via an annular slide rail. By having the motor in the movable seat 37 drive the gear 34 to rotate back and forth, it can cooperate with the annular rack 35 to drive the movable seat 37 to rotate back and forth, thereby adjusting the angle of the two straightening cylinders 3 on it. This allows for multi-point straightening and multi-angle straightening processing simultaneously.

[0025] In use, the first step is to place the gatepost body 10 on the rotating column 7, and then rotate the rotating drive a6 to drive the rotating column 7 to rotate, which in turn drives the gatepost body 10 to rotate. This allows the gatepost body 10 to be detected by the detection device. When the gatepost body 10 is detected to be bent, the two straightening cylinders 3 corresponding to the straightening ring 8 can work together to push the straightening ring 8 back and forth. In this way, multiple straightening rings 8 can be used for multi-point support to straighten the gatepost body.

[0026] Step 2: The dual-axis cylinder 16 can drive a set of corresponding movable blocks 15 to move back and forth. When straightening the tie rod body 10 is required, the dual-axis cylinder 16 can drive the two half-rings of the straightening ring 8 to merge through the movable blocks 15 and the mounting block 12. When testing the tie rod body 10, the dual-axis cylinder 16 can drive the two half-rings of the straightening ring 8 to open, so that the tie rod body 10 can rotate for testing. By removing the bolts 18, the baffle 19 can be removed, allowing the corresponding mounting block 12 and the straightening ring 8 to move upwards. The straightening ring 8 can be replaced according to the diameter of the pole body 10, so that the staff can easily replace the straightening ring 8 of different sizes. The rotation drive b26 can drive the square box 30 to rotate, which can drive the probe 29 to rotate and detect the pole body 10. The probe 29 is a displacement detection sensor probe used to collect radial runout data of the pole. The shrinkage device 27 can drive the shrinkage strip 28 to move back and forth, so that the position of the probe 29 can be adjusted according to the diameter of the pole body 10. At the same time, the height of the probe 29 can be adjusted by the telescopic device 24.

[0027] Working principle: The goblin column body 10 is placed horizontally on four rotating columns 7, and driven by the rotation drive a6 to rotate it at a constant speed around its own axis. At the same time, the detection mechanism integrated on the support plates 4 at both ends adjusts the height of the probe 29 through the telescopic device 24, adjusts the radial extension distance through the retraction device 27, and drives the probe 29 to scan circumferentially through the rotation drive b26. During the rotation of the goblin column body 10, radial runout data is automatically collected to accurately identify the bending area. After the bending section is detected, the corresponding dual-axis cylinder 16 drives the two half-rings of the straightening ring 8 to close and wrap around the column body, forming a ring constraint. The straightening cylinder 3 drives the corresponding straightening ring 8 to move left and right. Each pair of straightening cylinders 3 corresponds to one straightening ring. 8. The bending section is corrected by applying pressure at multiple points to disperse the straightening force and avoid local damage or reverse bending caused by traditional single-point pressing. In addition, the circumferential angle of the straightening ring 8 and the straightening cylinder 3 can be adjusted as a whole by the motor driving the gear 34 in the moving seat 37 to move along the ring rack 35, so as to achieve multi-angle pressure. The straightening ring 8 adopts a detachable split structure, which can be quickly replaced with different inner diameter specifications according to the workpiece diameter. The whole set of devices integrates rotary support, automatic detection and multi-point straightening on the same worktable 1. The entire process from detection to straightening can be completed in one clamping. The linkage of each actuator realizes automated operation, and finally achieves the effect of straightening and forming in one step and avoiding secondary deformation.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening device for processing tie rods, comprising a worktable (1) and a tie rod body (10), characterized in that: Four sets of brackets (32) are fixedly installed on the workbench (1). Each set of brackets (32) is equipped with a rotating rod (33). A rotating column (7) is fixedly sleeved on each rotating rod (33). Support plates (4) are fixedly installed on the front and rear sides of the workbench (1). Connecting blocks (5) are fixedly installed on the two support plates (4). Two rotary drives (6) are fixedly installed on the two connecting blocks (5). The output shaft of each rotary drive (6) is fixedly connected to each rotating rod (33). The Golin column body (10) is placed on the four rotating columns (7). The workbench (1) is provided with several slide grooves (11), or the movable seat (37) is provided with slide grooves (11). Each slide groove (11) is movably connected with a slide bar (14). Each slide bar (14) is fixedly installed with a moving bar (13). Each moving bar (13) is provided with a set of movable blocks (15). Each set of movable blocks (15) is provided with a straightening ring (8). Several sets of fixed plates (2) are provided on the left and right sides of the workbench (1). Each set of fixed plates (2) is fixedly installed with an mounting plate (17). Each mounting plate (17) is fixedly installed with a straightening cylinder (3).

2. The straightening device for processing tie rods according to claim 1, characterized in that: Each of the straightening rings (8) consists of two half rings. Each movable block (15) is fixedly installed with a connecting strip (21). Each connecting strip (21) is provided with an installation block (12). Each installation block (12) is provided with a connecting groove (23). Each connecting strip (21) is movably connected to each connecting groove (23). Each connecting strip (21) is provided with several threaded grooves (22).

3. The straightening device for processing tie rods according to claim 2, characterized in that: Each of the threaded grooves (22) is threaded with a bolt (18), each connecting strip (21) has a baffle (19) attached to its upper side, each baffle (19) has several through grooves (20), each bolt (18) is movably connected to each through groove (20), and each mounting block (12) is fixedly connected to each half ring.

4. The straightening device for processing tie rods according to claim 1, characterized in that: Each of the moving bars (13) is fixedly installed with a dual-axis cylinder (16), and the two output shafts of each dual-axis cylinder (16) are fixedly connected to each movable block (15). Each moving bar (13) is fixedly installed with long bars (9) on both the front and rear sides.

5. A straightening device for processing tie rods according to claim 1, characterized in that: Telescopic devices (24) are fixedly installed on both of the support plates (4), lifting blocks (25) are fixedly installed on the output shafts of both telescopic devices (24), and rotary drive b (26) is fixedly installed on both lifting blocks (25).

6. A straightening device for processing tie rods according to claim 5, characterized in that: Each of the rotary drive b (26) has a fixed groove (31) on its output shaft, and a square box (30) is fixedly installed in each fixed groove (31). A shrink strip (28) is movably connected in each of the two square boxes (30).

7. A straightening device for processing tie rods according to claim 6, characterized in that: A probe (29) is fixedly installed on each of the two shrink strips (28), and a shrink device (27) is fixedly installed on each of the two square boxes (30). The output shafts of the two shrink devices (27) respectively movably pass through the two square boxes (30), and the output shafts of the two shrink devices (27) are fixedly connected to the two shrink strips (28).

8. A straightening device for processing tie rods according to claim 1, characterized in that: The workbench (1) is provided with several mounting slots (36), each mounting slot (36) is provided with a movable seat (37), each slide (11) is provided on the movable seat (37), each set of fixing plates (2) is installed on each movable seat (37), each mounting slot (36) is fixedly installed with a ring rack (35) on the front and rear inner walls, each movable seat (37) is provided with a motor, each movable seat (37) is fixedly installed with a gear (34) on the motor, and each gear (34) is meshed with each ring rack (35).

Images