GB2622896A

GB2622896A - Horizontal numerical control round bending machine

Info

Publication number: GB2622896A
Application number: GB2300270.2A
Authority: GB
Inventors: Zhao Ying; Jing Yigang; Sun Qun; Jiang Shangsheng; Liu Haoyuan; Song Zhihao; Meng Xiangyan
Original assignee: Liaocheng University
Current assignee: Liaocheng University
Priority date: 2022-10-01
Filing date: 2023-01-09
Publication date: 2024-04-03
Also published as: CN115532907A

Abstract

The machine includes a driving work roll 1 in a fixed position on a rack, loading 4 and unloading 2 work rolls on the right and left side respectively of the driving work roll, and a pressure work roll 3 between the loading/unloading rolls. Servo motors 23, 24, drive the loading/unloading work rolls towards/away from the driving work roll. A pressure servo motor 5 drives the pressure work roll towards/away from the driving roll. Left and right rebound compensating work roll groups 10, 20, are outside the loading/unloading rolls. The rack has a work roll base and loading/unloading roll supporting wall plates 17, 18. There is a pressure roll installation area between the wall plates. A loading guide rail 6 is on the side walls of the two unloading wall plates. The setting mode of the loading and unloading wall plates is the same. The wall plates are integrally formed with the driving roll base. The right rebound group has a compensating roller 8 and a roll bending fixed support plate, with axes of the plate and compensating roller vertically arranged. The compensating roller abuts against a machined workpiece to prevent rebound deformation of the workpiece.

Description

HORIZONTs ONTROL ROUND BENDING MACHINE

TECHNICAL FIELD

100011 The present disclosure relates to a round bending machine in particular to a horizontal numerical control round bending machine.

BACKGROUND

[0002] At present, according to the machining requirements of different workpieces sucu as the weight of workpieces and the shapes to be formed, vertical or horizontal round bending machines can be selected. The traditional horizontal round bending machine comprises three work rolls. Two of the three work rolls are used for forming a supporting surface, and then the remaining work roll is used for applying pressure to the supporting surface, so that the profiles are bent. However, when the work rolls apply pressure to the supporting sulface" the work rolls vibrate dining the moving process, and the three work rolls can rotate. However, the two work rolls forming the supporting surface do not limit the profiles:, so that the profiles on the two sides are easily bent with errors due to the factors such as vibration and deviation. Because the traditional horizontal round bending machine has only three work rolls, it is difficult to meet different machining requirements, and the working mode is unitary.

100031 The round. bending machine can bend round. corners of thin plates or tubular profiles. The round bending machine comprises a support, a. workbench, a numerical control system and a hydraulic pump. The workbench is placed on the support, and the workbench is provided with a cylindrical pressing die and a. cylindrical pressure-bearing die. A through hole is formed in the workbench. The hydraulic pump is provided with a. piston rod capable of moving hack and forth. When in use, the hydraulic pump pushes the pressing die to move forward after being electrified to generate -pressure on the profiles, so that the bending of the profiles is realized. The existing round bending machine has the advantages that diffbrent sizes and specifications of pressing dies need to be used when diffbrent shapes of profiles are machined, so the pressing dies need to be replaced frequently, and the production efficiency is reduced. Because the roll bending forming process is an elastic-plastic deformation process of materials" the rebound of parts is an inevitable phenomenon. Thus, the bending angle and curvature radius of parts are recovered after forming. The rebound phenomenon can affect the final shape and dimensional accuracy of parts, resulting in that the parts do not meet the accuracy requirements.

The research on roll bending technology in China has been started relatively late, and the same compatible products cannot reach the level of foreign products. in recent years, many civil aircraft enterprises in China have introduced high-end profile roll bending equipment for production. However, as the core technology of the control system is still grasped by other enterprises" so far, main aircraft roll bending parts cannot be produced independently and need ed, so that the development progress of new products is seriously affected.

SUMMARY

[0005] The technical problems to be solved by the present disclosure arc to solve the problems of instability and relatively large error in the traditional horizontal round bending machining of profiles, to solve the problem that parts do not meet the accuracy requirement due to material rebound, to solve the problem of repeatedly changing the pressing die, and to solve the problems of ow efficiency, h labor intensity and the like of traditional manual profile feeding 10006i In order to solve the technical problems, the present disclosure adopts the thllowing technical scheme 100071 A horizontal numerical control round bending machine comprises a rack, a work roil group and a numerical control system; wherein a drivin, work roll is arranged at the center of the upper surface of the rack, an unloading work roll and a loading work roll are respectively arranged on the left and right sides of the driving work roll, and a pressure work roll is arranged between the unloading work roll and the loading work roll; [0008j the position of the driving work roll is fixed; the loading work roil is arranged on the right side of the driving work roll, and a right servo motor drives the loading work roll to get close to or away from the driving work roll for position adjustment; the unloading work roll is arranged on the left side of the driving work roll; and a left servo motor drives the unloading, work roll to get close to or away from the driving work roll for position adjustment; the pressure work roll is driven by a pressure servo motor to net close to or away from the driving work roll for position adjustment; rebound compensating work roll groups are arranged outside the unloading work roll and the loading work roll, and the rebound compensating work roll groups comprise a left rebound compensating work roll group and a right rebound compensating lvork roll group; [0009] the upper surface of the rack is provided with a driving work roll base, loading work roll supporting wall plates and unloading work roll supporting wall plates; the driving work roll base is connected and provided with the driving work roll; the loading work roll supporting wall plates and the unloading work roll supporting wall plates are arranged in a splay shape; a pressure roll insiallation area is arranged between the loading work roll supporting wall plate and the unloading work roll supporting wall plate; the loading work roll supporting wall plate is arranged on one side of the driving work roll base; the two loading work roll supporting wail plates are arranged at intervals: a loading guide rail is arranged on the opposite inner side walls of the two unloading work roll supporting wall plates arranged at intervals: the loading guide rail is used fin connecting: and arranging the loading work roll; the miloading work roil supporting wall plate is arranged at the position on the other side, symmetrical to the loading work roll supporting wall plate, of driving work roll, and the setting mode of the unloading work roll supporting waft plate is the same as that of the loading work roll supporting wall plate; the loading work roll supporting wall plate, the unloading work roll supporting wall plate and the driving work roll base are integrally formed; [00:10] the right rebound compensating work roil group is provided with a right rebound compensating roller and a right auxiliary roll bending fixed support plate, the right auxiliary roil bending fixed support plate is parallel to the upper surface and the rack and used for supporting a machined workpiece in a rolling manner, the right rebound compensating roller is arranged at the right auxiliary roll bending fixed support plate, the axes of the right auxiliary roll bending fixed support plate and the right rebound compensating roller are vertically' arranged, the right rebound compensating roller is arranged over the right auxiliary roll bending, fixed support plate, and the right rebound compensating roller abuts against the machined wodspiece to prevent rebound deformation of the machined workpiece; and the structures and working principles of the left rebound compensating work roil group and the right rebound compensating work roll group are the same.

[0011] The horizontal numerical control round bending e has the following id [0012] Firstly, Lhe curved working gap can be changed by moving the loading work unloading work roll and the pressure work roll, so that the device is suitable for different machining needs, and different shapes are machined.

[0013] Secondly, through the correcting force of the pressure work roll for preventing the machined workpieee from rebounding, the plastic deformation in the defamation zone is increased, and the stress distribution state is changed, so that the rebound is reduced, the machining accuracy of the parts is improved, the machining safety is ensured, and the stability of the device is improved_ [0014] Thirdly, by arranging the right rebound compensating roller and the right auxiliary roll bending fixed support plate, the right rebound compensating roller and the right auxiliary roil bending fixed support plate act together to support and limit the machined workpiece to prevent rebound deformation of the profiles. The structures and working principles of the left rebound compensating roll group and the right rebound compensating work roll group are the same. [0015] Fourthly, the driving work roll base on the upper surface of the rack, the loading work roll supporting wall plate and the unloading work roll supporting wall plate are integrally formed, so that the connection and fixation of the driving work roll, the loading work roil and the pressure work roll are more stable, the deviation of the position change caused by the temperature and other environmental Influences of the split connecting parts is reduced, the machining accuracy in the working, state is improved, and the relative position is also convenient to adjust.

[0016] Preferably, the further technical scheme of the present disclosure is as follows.

[0017] The loading work roll is arranged on a lantern ring. The lcartern ring is installed on a loading guide rail. The loading work roll is connected with a right servo motor through die lantern ring. The right servo motor drives the loading work roll to move along the loading guide rail to get close to or away from the driving work roll for position adjustment. The setting mode of the unloading work roll is the same as that of the loading work roll.

[0018] The lantern dog is arranged to ensure the stability during machining, and the two driven work rolls such as the loading work roll and the unloading work roll move along the guide rail and are limited by the guide rail to improve the adjustment accuracy.

[0019] The right rebound compensating roller and the right auxiliary roll bending fixed support plate are both installed on a right auxiliary roll bending sliding block, a right auxiliary roll bending servo motor drives a right auxiliary roll bending ball screw, the right auxiliary roil bending ball screw drives the right auxiliary roll bending sliding block, and the right auxiliary roll bending sliding block drives the right rebound compensating roller and the right auxiliary roll bending fixed support plate to move and change positions; the right rebound compensating work roll group is arranged on a support shaft, and the right auxiliary roll bending hydraulic rod drives the support shaft to rotate, and the rotation of die support shaft drives the right rebound compensating roller and the right auxiliary roll bonding fixed support plate to rotate and adjust the positions along with the rotation of the support shaft [0020] The rebound compensating roller and the right auxiliary roll bending fixed support plate are arranged on the sliding block" and the position can be adjusted along the right auxiliary roll bending ball screw by driving the sliding block. Meanwhile, the right rebound compensating work roil group is arranged on the support shaft. When the support shaft rotates, the rebound compensating roller rotates to adjust the position along with the rotation of the support shaft. In order to meet the needs of different profiles and different machining angles during working at different positions, when the position is adjusted, the round where the rebound compensating roller is located is adjusted to be in tangent contact with the machined workpiece.

[0021] A torsion device is further arranged on the rack. The torsion device is provided with a torsion motor, a coupling, clamping blocks, a worm and a worm gear. The torsion motor drives the wormi through the coupling. The worm drives the W. OM gear to rotate. The center of the worm gear is provided with the clamping blocks. A torsion hole is formed among the clamping blocks. The machined workpiece is inserted into the torsion hole and then limited by the clamping blocks.

[00221 When the torsion device works, the materials pass through the inlet of the torsion device, and the clamping blocks can block the materials. And then, the torsion motor is started, and the worm is driven by the coupling to rotate. Meanwhile, the worm gear is driven to rotate, so that the materials can be twisted and deformed under the action of the clamping blocks and the worm gear. Through the above-mentioned arrangement, the horizontal numerical control round bonding machine has a bending function and a torsion function.

[0023] The torsion device is further provided with a torsion box and a torsion end cover, the worm and the worm gear are arranged in the torsion box, the torsion end cover is arranged on one side of the torsion box, and the torsion motor is connected and fixed to the torsion end cover. [0024] By arranging the torsion -box and. the torsion end cover, the torsion motor is convenient to connect and arrange.

[0025] The torsion device is arranged on a left auxiliary roll bending sliding block. The torsion device is installed on the left auxiliary roll bending sliding block. The movement principle and mode of the left auxiliary roll bending, sliding block are the same as those of the right auxiliary roll bending sliding block. The torsion device can move along with the nioveincni of the left auxiliary roll bending sliding block, so that the working position is changed. Thus, the linkage provides a more comprehensive machining mode for the torsion device.

[0026] The torsion device is ananged over the machine box to reduce the arrangement of supporting parts.

[0027] The pressure: work roll is arranged on a supporting lantern ring. The supporting lantern ring is hinged and connected with a. pressure work roll support shaft. The pressure servo motor drives the supporting lantern ring to rotate around the pressure work roll support shaft and drives the pressure work roll to get close to or away from the driving work roll. The pressure work roll support shaft is installed inside the rack.

[0028] Through the above-mentioned arranuemenu the pressure work. roll can be driven by the pressure sent motor along the pressure work roll to get close to or away from the driving work roll for position adjustment. The position can be adjusted by rotating, so that the needs of work are preferably met.

[0029] The ball screw passes through the sliding block to be installed Off the guide rail, so that the movement of the auxiliary roll bending mechanism along the guide rail is realized. The rollers on the rebound compensating roll bending mechanism can freely rotate on the material machining plane. 'The profiles can be subjected to secondary reinforced bending according to the rebound trend after the profiles are bent and formed, so that the device is suitable for machining of various material shapes to meet various work needs, and the usability of the device is greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG 1 is an exploded view of a specific embodiment in the present disclosure.

[0031] FIG 2 is an exploded view of a specific embodiment in the present disclosure.

[0032] FIG 3 is an exploded view of a specific embodiment in the present disclosure.

10033] FIG 4 is a structural schematic diagram of a specific embodiment in the present disclosure.

[0034] FIG 5 is a structural schematic diagram of a specific embodiment in the presem disclosure.

[0035] FIG. 6 is a space diagram of a specific embodiment in the present disclosure.

[00361 Reference signs in the attached figures: I, driving work roll; 2, unloading work roll; 3, pressure work roll; 4, loading work roll; 5. pressure servo motor; 6, loading guide rail; 7, right auxiliary roll bending sliding block; 8, right rebound compensating roller; 9, right auxiliary roll bending sleeve; Ilk right rebound compensating work roil group; II, driving roller servo motor; 12, driving roller sleeve; 13, supporting lantem ring; 14, jat ebound coinpensating roller; 15, left auxiliary to bending sliding block, 16, right: auxiliari roll bending guide rail; 17, right auxiliary roll bending fixed support plate; 18, left auxiliary roll bending fixed support plate; 19, left auxiliary roll bending guide rail; 20, left rebound compensating work nail group; 21, right auxiliary roll bending hydraulic rod; 22, left auxiliary' roll bending hydraulic rod: 23, right servo motor; 24, left servo motor; 25, right auxiliary roll bending servo motor; 26, right auxiliary roil bending ball screw:, 27" left auxiliary roll bending ball screw; 28, left roll bending servo motor; 29, box shell; 30, lifting bolt 31, rack radiating plate: 32, supporting base; 33" torsion motor; 34, coupling, 35" torsion. end cover; 36, torsion box; 37, clamping block; 38, rikorin; and 39, worm gear.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The description of the present disclosure is further described in conjunction with the following embodiments.

[00381 Referring to FIG. I, disclosed is a horizontal numerical control round bending machine. The horizontal numerical control round bending machine comprises a rack" a work roll group and a numerical control system. A driving work roll I. is arranged at the center of the upper surface of the rack. The driving work roll I is driven by a driving roller servo motor 11 to work. An unloading work roll 2 and a loading work roll 4 are respectively arranged on the left and right sides of the driving work roll I. A pressure work roll 3 is arranged between the unloading 'work roll 2 and the loading work roll 4. The position of the driving work roll 1 is selected at the center of the upper surface of the rack. A driving roller sleeve 12 on which the driving work roll 1 is installed is locked by bolts, so that the position of the driving roller sleeve cannot be moved, and the driving work roll I rotates and works.

[0039] The loading work roll 4 is arranged on the right side of the driving roll I. The loading work roll 4 is arranged on a lantern ring. The lantern ring is installed on a. loading guide rail 6. The loading work roll 4 is connected with a right servo motor 23 through the lantern ring. The light servo motor 23 drives the loading work roll 4 to move along the loading guide rail 6 to get close to or away from the driving work roll 1 -for position adjustment.

[0040] The unloading work roll 2 is arranged on the left side of the driving; work. roll I. The unloading work roll 2 is arranged on a lantern ring. The lantern ring is installed on an unloading guide rail. The unloading work roll 2 is connected, with a loft servo motor 24 through the lantern ring. The left servo motor 24 drives the unloading work roll 2 to move along the unloading guide to -Jet close to or away from the driving work roll I for position adjustment.

The pressure work roll 3 is arranged on a supporting lantern ring 11 The supporting lantern ring 13 is hinged and connected with a pressure work roll support shaft. The pressure servo motor 5 drives the supporting lantern ring 13 to rotate around the pressure work roll support shaft and drives the pressure work roll 3 to get close to or away from the driving work roll 1. The pressure work roll support shaft is installed inside the rack.

[0042] The upper surface of the rack is provided with a driving work roll base:, loading work roll supporting wall plates and unloading work roll supporting wall plates. The driving work roll base is connected and provided with the driving work roll 1. The loading work roll supporting wall plates and the unloading. work roll supporting wall plates are arranged in a splay shape. A pressure roll installation area is arranged between the loading work roll supporting wail plate and the unloading work roll supporting wall plate. The loading work roll supporting wall plate is arranged on one side of the driving work roll base. The two loading work roll supporting wall plates are arranged at intervals. A loading guide rail 6 is arranged on the opposite inner side walls of the two unloading work roll supporting wall plates arranged at intervals. The loading guide rail 6 is used for connecting and arranging the loading work roll 4. The unloading work roll supporting wall plate is arranged at the position on the other side, symmetrical to the loading work roil supporting wall plate, of the driving work roll I The setting mode of the unloading work roll supporting wall plate is the same as that of the ks:),iii:g work cofl The loading work roll supporting wall plate, the unloading work roll supporting wall plate and the driving work roll base are integrally fanned.

[0043] A right rebound compensating work roll group 10 is provided with a right rebound compensating roller 8 and a right auxiliary roll bending fixed support plate 17. The right rebound compensating roller 8 and the right auxiliary roll bending fixed support plate 17 are both installed on a right auxiliary roll bending sliding block 7. A right auxiliary roll bending servo motor 25 drives a right auxiliary roll bending ball screw 26. The right auxiliary roll bending bail screw 26 drives the right auxiliary roll bending sliding block 7. The right auxiliary roil bending sliding block 7 drives the right rebound compensating roller 8 and the right auxiliary roll bending fixed support plate 17 to move and change positions. The right rebound compensating work roll group is arranged on a support shaft. The right auxiliary roll bending hydraulic rod 21 drives the support shall to rotate. The top of the support shaft is connected with the rack through a right auxiliary roil bending sleeve 9. The rotation of the support shaft drives the right rebound compensating roller 8 and the right auxiliary roll bending fixed support plate 17 to rotate and adjust the positions along with the rotation of the support shaft, in order to meet the needs of different profiles and different machining angles during working at different positions, when the position is adjusted, the round where the contact point of the right rebound compensating roller 8 is located is adjusted to be in tangent contact with a machined workpiece.

[0044] A left rebound compensating work roll group 20 is provided with a left rebound compensating roller 14, a left auxiliary roll bending sliding block 15, a left auxiliary roll bend-Mg fixed support plate IS, a left auxiliary roll bending guide rail 19, a left auxiliary roll bending; hydraulic rod 22, a left auxiliary roll bending ball screw 27 and a left roll bending servo motor 28. The structures and working principles of the left rebound compensating work roll group 20 and the right rebound compensating work roll group 10 are the same [0045] The side wall plate of the box shell 29 is a rack radiating plate 34, and radiating holes are formed for facilitating heat radiation. The box shell 29 is provided with two spaced lifting bolts convenient for connection and fixation. A supporting base 32 is arranged on the bottom surface of the box shell 29, and the supporting base 32 is used for supporting the box shell 29. [0046] A torsion device is installed above the left auxiliary roll bending sliding block 15. The torsion device is composed of a torsion motor 33, a coupling 34, a torsion end cover 35, a torsion box 36" clamping blocks 37, a W01131 38 and a wonn gear 39. The torsion motor 33 drives the worm 38 through the coupling 34. The worm 38 drives the worm gear 39 to rotate. The center of the worm gear 39 is provided with the clamping blocks 37. A torsion hole is formed among the clamping blocks 37_ The machined workpiece is inserted into the torsion hole and then limited by the clamping blocks 37. The W01111 38 and the worm gear 39 are arranged in the torsion box 36. The torsion end cover 35 is arranged on one side of the torsion box 36. The torsion motor 33 is connected and fixed to the torsion end cover 35.

[0047] The torsion device is installed on the left auxiliary roll bending sliding block 15. The movement principle and mode of the left auxiliary roll bending sliding block 15 are the same as those of the right auxiliary roll bending sliding block 7. The torsion device can move along with the movement of the left auxiliary roll bending sliding block 15, so that the working position is changed. Thus, the linkage provides a more comprehensive machining mode for the torsion [0048] The working principle and working process of the device are as follows [0049] When the horizontal inummical control round bending machine works, it is necessary to input reference codes into the interface of the numerical control system. After the action simulation is confirmed. to be correct, the round bending machine is started, materials to be machined are placed on the workbench and arranged in the working gap formed by the driving work roil 1, the unloading work roll 2" the loading work roll 4 and the pressure work roll 3 with an auxiliary fixture. During machining, the feeding amount of the left servo motor 24, the right servo motor 23 and the pressure servo motor 5 is controlled by the terminal control of the numerical control system to adjust the working gap in the fourth roller forming mechanism, and the driving work roil 1 rotates to drive the feeding of the materials, so that the preliminary machining of the profiles is automatically completed. Because of the rebound characteristic of the materials, the rebound compensation for the profiles is particularly important. Because the left and right mechanisms are the same and the adjustment methods are the same, the adjustment of the right mechanism is taken as an example. The numerical control system controls the right auxiliary, roll bending servo motor 25 to control the right auxiliary roll bending sliding, block 7 to move along a right auxiliary roll bending guide rail 1.6, and the whole auxiliary roll bending device can be driven by the right auxiliary roll bending sleeve 9 to rotate around the central axis. In this way, the position of the right rebound compensating roller 8 can be adjusted according to the requirements, so that the right rebound compensating roller 8 can complete the rebound compensation of the profiles at the correct position.

[0050] When the torsion device works, the materials pass through the inlet of the torsion device, and the clamping blocks 37 can block the materials. And then, the torsion motor 33 is started, and the worm 38 is driven by the coupling 34 to rotate. Meanwhile, the worm gear 39 is driven to rotate" so that the materials can be twisted and deformed under the action of the clamping blocks 37 and the worm gear 39. Through the above-mentioned arrangement, the horizontal numerical control round bending machine has a bending function and a torsion function.

Claims

W DAT IS CLAIM ED 15t 1. A horizontal numerical control round bending machine. eontpnsinu a rack,a work roll group and a numerical control system, wherein a driving work roll (I) is arranged at the center of the upper surface of the tack, an unloading work roll (2) and a loading work roll (4) are respectively arranged on the left and right sides of the driving work roll (I), and a pressure work roll (3) is arranged between the unloading work roll (2) and the loading work roll (4), the position of the driving work roll (1) is fixed; the loading work roll (4) 15 arranged on the right side of the driving work roll (I), and a right servo motor (23) drives the loading work roll (4) to get dose to or away from the driving work roll (1) for position adjustment:, the unloading work roll (2) is arranged on the left side of the driving work roll Cl). arid a left servo motor (24) drives the unloading work roll (2) to get close to or away from the driving work roll ( I) for position adjustment; the pressure work roll (3) is driven by a pressure servo motor (5) to get close to or away from the driving work roll (I) far position. adjustment; rebound compensating work roll groups are arranged outside the unloading work roll (2) and the loading work roil (4), and the rebound compensating work roll groups comprise a left rebound compensating work roll group and a right rebound compensating work roll group; the upper surface of the rack is provided with a driving work roll base, loading work roll supporting wall plates and unloading work roll supporting wall plates; the driving work roll base is connected and provided with 11 driving work roll (1); the loading work roil supporting wail plates and the unloading work roil supporting wall plates are arranged in a splay shape; a pressure roll installation area is arranged between the loading work roll supporting wall plate and the unloading work roll supporting wall plate; the loading, work roll supporting wall plate is arranged on one side of the driving work roll base; the two loading work roll supporting wall plates are arranged at intervals; a loading guide rail (6) is arranged on the opposite inner side walls of the two unloading work roll supporting wall plates arranged at intervals, the loading guide rail (6) is used for connecting and arranging the loading work roll (4); the unloading work roll supporting wall plate is arranged at the position on the other side, symmetrical to the loading work roll. supporting; wall plate, of the driving work roll (1), and the setting mode of the unloading work roll supporting wall plate is the same as that of the loading work roil supporting wall plate; the loading work roll supporting wall plate, the unloading work roll supporting wall plate and the driving work roll base are integrally formed, the right rebound compensating work roll group is provided with a right rebound compensating roller (8) and a right auxiliary roll bending fixed support plate (17), the right rebound compensating roller (8) is arranged at the right auxiliary roll bending fixed support plate (17), the axes of the right auxiliary roll bending fixed support plate (17) and. the right rebound compensating roller (8) are vertically arranged, the right rebound compensating roller (8) is arranged over the right auxiliary roll bending fixed support plate (17)., and the right rebound compensating roller (8) abuts against a machined workpiece to prevent rebound deformation of the machined iyorkpiece, and the structures and working principles of the left rebound compensating work roll group and the right rebound compensating work roll group are the same.
2. The horizontal numerical control round bending machine according to claim 1, wherein the loading work roll (4) is arranged on a lantern ring, the lantern ring is installed on the loading guide lad (6), the loading work in 1 (4) is connected with the rig,ht 5enr7o motor (23) through the lantern ring, and the right servo motor (23) drives the loading work roll (4.) to move along the loading guide rail (6) to get close to or away From the drwing work roll (I) for position adjustment, and the setting mode of the unloading work roll (2) is the same as that of the loading work roll (t).
3. The horizontal numerical control round. bending machine according to claim 1,, wherein the right rebound compensating roller (8) and the right auxiliary roll bending fixed support plate (17) are both installed on a right auxiliary roll bending sliding block (7); a right auxiliary mil bending servo motor (25) drives a right auxiliary roll bending ball screw (26), the right auxiliary roll bending ball screw (26) drives the right auxiliary roll bending sliding block (7), and the right auxiliary roll bending sliding block (7) drives the right rebound compensating roller (8) and the right auxiliary roll bending fixed support plate (17) to move and change positions, the right rebound compensating work roll group is arranged on a support shaft, and the right auxiliary roil bending hydraulic rod (21) drives the support shaft to rotate, and the rotation of the support shaft drives the right rebound compensating roller (8) and the right auxiliary roil bending fixed support plate (17) to rotate and adjust the positions along with the rotation of the support shaft.
4. The horizontal numerical control round bending machine according to claim 1, wherein the rack is further provided with a torsion deice, the torsion device is provided with a torsion motor (33), a coupling (34), clamping blocks (37), a worm (38) and a worm gear (39); the torsion motor (33) drives the worm (38) through the coupling (34)" the worm (38) drives the W01111 gear (39) to rotate, the center of the worm gear (39) is provided with the clamping blocks (37), a torsion hole is formed among the clamping blocks (37), and the machined tyorkpiece is inserted into the torsion hole and then limited by the clamping blocks (37).
5. The horizontal numerical control round bending machine according to claim 4, wherein the torsion device is further provided with a torsion box (36) and a torsion end cover (35), the worm (38) and the worm gear (39) are arranged in the torsion box (36), the torsion end cover (3.5) is arranged on one side of the torsion box (36), and the torsion motor (33) is connected and fixed to the torsion end cover (35).
6. The horizontal numerical control round bending machine according to claim 4" wherein the torsion device is arranged on a left auxiliary roll bending sliding block (15).
7. The horizontal numerical control round bending machine according to claim 1, wherein the pressure work roll (3) is arranged on a supporting lantern ring (13), the supporting lantern ring (13) is hinged and connected with a pressure work roil support shaft, the pressure servo motor (5) drives the supporting lantern ring (13) to rotate around the pressure work roll support shaft and drives the pressure work roll (3) to get close to or away from the driving work roll (1), and. the pressure work roll support shaft is installed inside the rack.