Bending equipment for automobile luggage rack

Abstract

The utility model discloses bending equipment for an automobile luggage rack, which belongs to the technical field of automobile part forming and comprises a rack and a machine table arranged on the rack, two bending assemblies with the same structure are symmetrically arranged on the rack on two sides of the machine table, and each bending assembly comprises a rotating mechanism and a swinging mechanism. The rotating mechanism comprises a rotating disc base arranged on the rack and a rotating table arranged on the rotating disc base, and the mounting end of the rotating table is rotatably arranged on the rotating disc base through a pivotal bearing; a mounting frame is arranged on the upper end face of the rotary table, a through hole is formed in the mounting frame in the vertical direction, a movable frame is arranged on the end face, opposite to the through hole, of the mounting frame, the swing mechanism is arranged in the movable frame and comprises a swing frame, and a swing arm body is arranged in the swing frame; a hydraulic chuck is arranged at the end of the swing arm body located on the machine table side. A traditional motion mode is changed into a rotary numerical control bending operation mode, and the rotary numerical control bending machine has the advantage of being high in transmission efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile component forming, and in particular relates to a bending device for an automobile luggage rack. Background Art

[0002] In the production process of automobile luggage racks, the bending process is a crucial link, and the bending equipment is the key component to achieve this process. The free ends of the bending equipment are equipped with clamping devices. When working, the clamping devices clamp the two ends of the workpiece respectively, the forming mold is close to the middle of the workpiece, and the two rotating arms rotate in the direction of approaching the base to bend the workpiece into shape. At the beginning of bending, the nylon core enters the luggage rack cavity to ensure that the luggage rack does not collapse during the bending process, and there are no pits and detailed shrinkage. However, the bending equipment currently widely used has exposed some obvious shortcomings in actual operation, which not only affects production efficiency, but also poses a potential threat to product quality.

[0003] Existing bending equipment has low mechanical efficiency, slow bending speed, poor dimensional uniformity, and the cam's dimensions change due to wear and tear after long-term operation. The products produced by the XY method have poor stability, are difficult to meet customer needs, and have high subsequent maintenance costs. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a bending device for a car luggage rack, which can realize the transformation from the traditional mechanical cam operation mode and XY motion mode to a rotary CNC bending operation mode. It has the advantages of high mechanical transmission efficiency, smoother transmission and less loss than the traditional one.

[0005] The utility model is implemented as follows: a bending device for a car luggage rack comprises a frame and a platform arranged on the frame, two bending assemblies with the same structure are symmetrically arranged on the frame located on both sides of the platform, and the bending assembly comprises a rotating mechanism and a swinging mechanism;

[0006] The rotating mechanism comprises a turntable base arranged on the frame and a turntable arranged on the turntable base, and the mounting end of the turntable is rotatably arranged on the turntable base through a slewing bearing;

[0007] The upper end surface of the turntable is provided with a mounting frame, a through hole is provided on the mounting frame in the vertical direction, a movable frame movable in the vertical direction is provided on the end surface of the mounting frame opposite to the through hole, the swing mechanism is provided in the movable frame, the swing mechanism includes a swing frame provided in the movable frame and capable of longitudinal swinging, a swing arm body capable of transverse swinging is provided in the swing frame, the swing arm body passes through the through hole in the horizontal direction and extends to the side of the machine platform;

[0008] A hydraulic chuck is arranged at the end of the swing arm body located on the machine side, and a nylon core is arranged horizontally between the two chucks of the hydraulic chuck; the swing arm body includes a first mounting frame and a second mounting frame arranged in the first mounting frame; a seventh ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, and the mounting end of the nylon core passes through the hydraulic chuck and the electric turntable in sequence and is connected to the screw of the seventh ball screw pair, and the second mounting frame is provided with an eighth servo motor for driving the nut in the seventh ball screw pair to rotate.

[0009] Furthermore, a second guide rail pair is provided on the upper end surface of the turntable base, the guide rail in the second guide rail pair is an annular guide rail that coincides with the rotation trajectory of the turntable, the turntable is arranged on a slider of the second guide rail pair, and a gear ring that coincides with the rotation trajectory of the turntable is provided on the outer edge of the turntable base, a second servo motor is provided on the turntable located on the gear ring side, and a gear meshing with the gear ring is provided on the output shaft of the second servo motor.

[0010] Furthermore, the outer wall of the second mounting frame is provided with a seventh guide rail pair, and the inner wall of the first mounting frame is connected to the slider of the seventh guide rail pair;

[0011] A sixth ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, a seventh servo motor is arranged on the end surface of the first mounting frame away from the hydraulic chuck side, the output shaft of the seventh servo motor is connected to the screw of the sixth ball screw pair, and the nut of the sixth ball screw pair is connected to the second mounting frame;

[0012] The second mounting frame comprises a movable plate arranged at a side away from the hydraulic chuck, and the nut of the seventh ball screw pair is mounted on the movable plate through a roller bearing;

[0013] A mounting hole is formed on the side wall of the first mounting frame along the length direction, and a movable plate on the side of the mounting hole passes through the mounting hole and extends outward, and the eighth servo motor is mounted on the movable plate extending to the outside of the first mounting frame.

[0014] Furthermore, a fixed optical axis is provided in the first mounting frame and the second mounting frame along the length direction, and the fixed optical axis is connected to the lead screw of the seventh ball screw pair via a fixed plate;

[0015] The end of the lead screw in the seventh ball screw pair passes through the first mounting frame and extends to a side away from the hydraulic chuck, and a protective sheet metal for protecting the lead screw is arranged on the end surface of the first mounting frame.

[0016] Furthermore, the hydraulic chuck is arranged at the end of the swing arm body through an electric turntable.

[0017] Furthermore, the horizontal sides of the swing frame are arranged in the mobile frame through horizontal rotating shafts, and a support frame is arranged on the mobile frame, and a fifth servo motor and a fifth guide rail pair arranged in the vertical direction are arranged on the support frame, and a first hinge block is arranged on the slider of the fifth guide rail pair, and the first hinge block is hinged to the upper end surface of the swing frame through a first hinge; a fourth ball screw pair is penetrated on the first hinge block in the vertical direction, the nut of the fourth ball screw pair is connected to the first hinge block, and the output shaft of the fifth servo motor is connected to the screw in the fourth ball screw pair.

[0018] Furthermore, the vertical ends of the swing arm body are arranged in the swing frame through a vertical rotating shaft, and a sixth servo motor and a sixth guide rail pair arranged along the length direction of the swing arm body are arranged on the swing arm body away from the hydraulic chuck installation side, and a second hinge block is arranged on the slider of the sixth guide rail pair, and the second hinge block is hinged to the side wall of the swing frame through a second hinge; a fifth ball screw pair is arranged on the second hinge block in a horizontal direction, the nut of the fifth ball screw pair is connected to the second hinge block, and the output shaft of the sixth servo motor is connected to the screw in the ball screw pair.

[0019] Furthermore, a first guide rail pair is arranged on the upper end surface of the frame along the horizontal direction of the frame, the turntable base is installed on the slider of the first guide rail pair, a first servo motor and a first ball screw pair arranged along the horizontal direction of the frame are arranged in the frame, the output shaft of the first servo motor is connected to the screw in the first ball screw pair, and the nut of the first ball screw pair is connected to the lower end surface of the turntable base.

[0020] Furthermore, a third guide rail pair is arranged on the upper end surface of the turntable along the horizontal direction of the turntable, the lower end surface of the mounting frame is installed on the slider of the third guide rail pair, a third servo motor and a second ball screw pair arranged along the horizontal direction of the turntable are arranged in the turntable, the output shaft of the third servo motor is connected to the screw in the second ball screw pair, and the nut of the second ball screw pair is connected to the lower end surface of the mounting frame.

[0021] Furthermore, a fourth guide rail pair is arranged on the end face of the mounting frame, the movable frame is arranged on the slider of the fourth guide rail pair, a third ball screw pair is arranged on the mounting frame in the vertical direction, the screw in the third ball screw pair is connected to the movable frame, and a fourth servo motor for driving the nut in the third ball screw pair to rotate is arranged on the mounting frame.

[0022] The utility model has the advantages and technical effects: due to the adoption of the above technical solution, the traditional mechanical cam operation mode and XY motion mode are transformed into a rotary CNC bending operation mode. It has the advantages of high mechanical transmission efficiency, smoother transmission and less loss than the traditional one.

[0023] The servo motor drives the lead screw, which drives the nylon core to reciprocate, so as to better control the position of the nylon core. It is applicable to multiple models and solves the problem of difficult adjustment of the core position and low adjustment accuracy during the bending process of the car luggage rack. It not only significantly improves the stability of the product, reduces the error rate in the production process, but also reduces the production cost. At the same time, the precise control of the servo motor has greatly improved the production efficiency, significantly enhanced the production stability, and optimized the production process of the car luggage rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the rotating mechanism provided by the embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the installation of the turntable, the mounting frame and the swing mechanism provided in the embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the structure of the swing mechanism provided by the embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the swing arm body provided by an embodiment of the utility model;

[0029] Figure 6 This is a front view of the swing arm body provided by the embodiment of the utility model;

[0030] Figure 7 yes Figure 6 AA section view in;

[0031] Figure 8 It is a schematic diagram of the internal structure of the first installation frame and the second installation frame provided in an embodiment of the utility model.

[0032] In the figure: 1, frame; 2, machine platform; 3, rotating mechanism; 3-1, turntable base; 3-2, turntable; 3-3, slewing bearing; 3-4, first guide pair; 3-5, first servo motor; 3-6, first ball screw pair; 3-7, second guide pair; 3-8, gear ring; 3-9, second servo motor; 3-10, gear; 3-11, third guide pair; 3-12, third servo motor; 3-13, second ball screw pair; 4, swing mechanism; 4-1, swing frame; 4-2, support frame; 4-3, fifth servo motor; 4-4, fifth guide pair; 4-5, first hinge block; 4-6, first hinge; 4-7, fourth ball screw pair; 4-8, swing arm body; 4-9, sixth servo motor; 4 -10, sixth guide rail pair; 4-11, second hinge block; 4-12, second hinge; 4-13, fifth ball screw pair; 4-14, first mounting frame; 4-15, second mounting frame; 4-16, seventh guide rail pair; 4-17, sixth ball screw pair; 4-18, seventh servo motor; 4-19, eighth servo motor; 4-20, seventh ball screw pair; 4-21, mounting hole; 4-22, movable plate; 4-23, fixed optical axis; 4-24, fixed plate; 4-25, protective sheet metal; 5, mounting frame; 5-1, through hole; 6, movable frame; 7, hydraulic chuck; 8, third ball screw pair; 9, fourth servo motor; 10, fourth guide rail pair; 11, electric turntable; 12, nylon core. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0034] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] like Figures 1 to 8 As shown, the present application provides a bending device for a luggage rack of an automobile, comprising a frame 1 and a platform 2 arranged on the frame 1, two bending assemblies with the same structure are symmetrically arranged on the frame 1 located on both sides of the platform 2, and the bending assembly comprises a rotating mechanism 3 and a swinging mechanism 4. The rotating mechanism 3 comprises a turntable base 3-1 arranged on the frame 1 and a turntable 3-2 arranged on the turntable base 3-1, and the mounting end of the turntable 3-2 is rotatably arranged on the turntable base 3-1 through a slewing bearing 3-3.

[0036] The upper end surface of the frame 1 is provided with a first guide rail pair 3-4 in the horizontal direction of the frame 1, and the turntable base 3-1 is installed on the slider of the first guide rail pair 3-4. The frame 1 is provided with a first servo motor 3-5 and a first ball screw pair 3-6 in the horizontal direction of the frame 1. The output shaft of the first servo motor 3-5 is connected to the screw in the first ball screw pair 3-6, and the nut of the first ball screw pair 3-6 is connected to the lower end surface of the turntable base 3-1. By driving the first servo motor 3-5 to drive the screw in the first ball screw pair 3-6 to rotate, the turntable base 3-1 can reciprocate along the first guide rail pair 3-4 under the drive of the nut of the first ball screw pair 3-6, so as to realize the movement of the bending assembly toward the machine table 2.

[0037] The upper end surface of the turntable base 3-1 is provided with a second guide rail pair 3-7, the guide rail in the second guide rail pair 3-7 is an annular guide rail that coincides with the rotation trajectory of the turntable 3-2, the turntable 3-2 is set on the slider of the second guide rail pair 3-7, and the outer edge of the turntable base 3-1 is provided with a gear ring 3-8 that coincides with the rotation trajectory of the turntable 3-2, and the turntable 3-2 located on the side of the gear ring 3-8 is provided with a second servo motor 3-9, and the output shaft of the second servo motor 3-9 is provided with a gear 3-10 that meshes with the gear ring 3-8. The rotation of the turntable base 3-1 is driven by the cooperation of the gear 3-10 and the gear ring 3-8, which ensures the action accuracy of the rotation process, and the installed annular guide rail makes the transmission more stable, improves the rotation speed and mechanical transmission efficiency of the equipment, and the installed annular guide rail cooperates with the slewing bearing 3-3 at the rotation center of the turntable 3-2 to complete the rotation, improves the rigidity and stability of the equipment, eliminates the vibration caused by the excessive length of the turntable 3-2 and the resulting instability, prevents the loosening of fasteners in various parts, and extends the service life of various workpieces and standard parts. Drive the second servo motor 3-9, the second servo motor 3-9 drives the gear 3-10 to rotate along the gear ring 3-8, and drives the turntable 3-2 to cooperate with the slewing bearing 3-3 around the rotation center to complete the rotation of the turntable 3-2.

[0038] The upper end surface of the turntable 3-2 is provided with a mounting frame 5. Furthermore, the upper end surface of the turntable 3-2 is provided with a third guide rail pair 3-11 along the horizontal direction of the turntable 3-2, and the lower end surface of the mounting frame 5 is installed on the slider of the third guide rail pair 3-11. The turntable 3-2 is provided with a third servo motor 3-12 and a second ball screw pair 3-13 arranged along the horizontal direction of the turntable 3-2. The output shaft of the third servo motor 3-12 is connected to the screw in the second ball screw pair 3-13, and the nut of the second ball screw pair 3-13 is connected to the lower end surface of the mounting frame 5.

[0039] A through hole 5-1 is provided on the mounting frame 5 in the vertical direction, and a movable frame 6 which can move in the vertical direction is arranged on the end face of the mounting frame 5 relative to the through hole 5-1. Specifically, a fourth guide rail pair 10 is arranged on the end face of the mounting frame 5, and the movable frame 6 is arranged on the slider of the fourth guide rail pair 10. A third ball screw pair 8 is arranged on the mounting frame 5 in the vertical direction, and the screw in the third ball screw pair 8 is connected to the movable frame 6. A fourth servo motor 9 for driving the nut in the third ball screw pair 8 to rotate is arranged on the mounting frame 5, and a pulley group is arranged on the output shaft of the fourth servo motor 9, and the output shaft of the fourth servo motor 9 is connected to the driving wheel of the pulley group, and the nut in the third ball screw pair 8 is arranged in the driven wheel of the pulley group.

[0040] The swing mechanism 4 is arranged in the mobile frame 6, and the swing mechanism 4 includes a swing frame 4-1 which is arranged in the mobile frame 6 and can swing longitudinally. Specifically, the horizontal sides of the swing frame 4-1 are arranged in the mobile frame 6 through horizontal rotating shafts, and a support frame 4-2 is arranged on the mobile frame 6, and a fifth servo motor 4-3 and a fifth guide rail pair 4-4 arranged in the vertical direction are arranged on the support frame 4-2, and a first hinge block 4-5 is arranged on the slider of the fifth guide rail pair 4-4, and the first hinge block 4-5 is hinged to the upper end surface of the swing frame 4-1 through a first hinge 4-6; a fourth ball screw pair 4-7 is arranged on the first hinge block 4-5 in the vertical direction, and the nut of the fourth ball screw pair 4-7 is connected to the first hinge block 4-5, and the output shaft of the fifth servo motor 4-3 is connected to the screw in the fourth ball screw pair 4-7. The fifth servo motor 4-3 is driven to rotate the screw in the fourth ball screw pair 4-7, and the nut of the fourth ball screw pair 4-7 drives the first hinge block 4-5 to move linearly on the fifth guide rail pair 4-4, and then driven by the first hinge 4-6, the swing frame 4-1 swings longitudinally around the horizontal axis.

[0041] A swing arm body 4-8 that can swing laterally is arranged in the swing frame 4-1. Specifically, the vertical ends of the swing arm body 4-8 are arranged in the swing frame 4-1 through vertical rotating shafts. The swing arm body 4-8 away from the installation side of the hydraulic chuck 7 is provided with a sixth servo motor 4-9 and a sixth guide rail pair 4-10 arranged along the length direction of the swing arm body 4-8. A second hinge block 4-11 is arranged on the slider of the sixth guide rail pair 4-10. The second hinge block 4-11 is hinged to the side wall of the swing frame 4-1 through a second hinge 4-12. A fifth ball screw pair 4-13 is arranged on the second hinge block 4-11 in the horizontal direction. The nut of the fifth ball screw pair 4-13 is connected to the second hinge block 4-11, and the output shaft of the sixth servo motor 4-9 is connected to the screw in the ball screw pair. The sixth servo motor 4-9 is driven to rotate the screw in the fifth ball screw pair 4-13, and the nut of the fifth ball screw pair 4-13 drives the second hinge block 4-11 to move linearly on the sixth guide rail pair 4-10, and then driven by the second hinge 4-12, the swing arm body 4-8 swings horizontally around the vertical axis.

[0042] The swing arm body 4-8 passes through the through hole 5-1 in the horizontal direction and extends to the side of the machine platform 2; a hydraulic chuck 7 is arranged at the end of the swing arm body 4-8 located on the side of the machine platform 2. Preferably, the hydraulic chuck 7 is arranged at the end of the swing arm body 4-8 through an electric turntable 11, which can realize the rotation of the hydraulic chuck 7 and meet the working requirements of the stretching and bending operation.

[0043] The swing arm body includes a first mounting frame 4-14 and a second mounting frame 4-15 arranged in the first mounting frame 4-14, and a nylon core 12 is horizontally arranged between the two clamps of the hydraulic clamp 7;

[0044] A seventh ball screw pair 4-20 is arranged along the length direction in the first mounting frame 4-14 and the second mounting frame 4-15, and the mounting end of the nylon core 12 passes through the hydraulic chuck 7 and the electric turntable 11 in sequence and is connected to the screw of the seventh ball screw pair 4-20, and an eighth servo motor 4-19 for driving the nut in the seventh ball screw pair 4-20 to rotate is arranged on the second mounting frame 4-15.

[0045] Furthermore, a sixth ball screw pair 4-17 is arranged along the length direction in the first mounting frame 4-14 and the second mounting frame 4-15, and a seventh servo motor 4-18 is arranged on the end face of the first mounting frame 4-14 away from the hydraulic chuck 7, and the output shaft of the seventh servo motor 4-18 is connected to the screw of the sixth ball screw pair 4-17, and the nut of the sixth ball screw pair 4-17 is connected to the second mounting frame 4-15.

[0046] Furthermore, the outer wall of the second mounting frame 4-15 is provided with a seventh guide rail pair 4-16, and the inner wall of the first mounting frame 4-14 is connected to the slider of the seventh guide rail pair 4-16. The seventh guide rail pair 4-16 is provided to support and guide the second mounting frame 4-15 to perform high-precision and high-reliability movement in a straight line direction, reduce friction, and improve movement efficiency.

[0047] Further, the second mounting frame 4-15 includes a movable plate 4-22 arranged on the side away from the hydraulic chuck 7, the nut of the seventh ball screw pair 4-20 is mounted on the movable plate 4-22 through a roller bearing, and the nut of the sixth ball screw pair 4-17 is mounted on the movable plate 4-22;

[0048] The side wall of the first mounting frame is provided with a mounting hole 4-21 along the length direction, and a movable plate 4-22 on the side of the mounting hole 4-21 passes through the mounting hole 4-21 and extends outward, and the eighth servo motor 4-19 is mounted on the movable plate 4-22 extending to the outside of the first mounting frame 4-14.

[0049] Furthermore, the output shaft of the eighth servo motor 4-19 and the nut of the seventh ball screw pair 4-20 are driven by a belt.

[0050] Furthermore, a fixed optical axis 4-23 is provided in the first mounting frame 4-14 and the second mounting frame 4-15 along the length direction, and the fixed optical axis 4-23 is connected to the screw of the seventh ball screw pair 4-20 through a fixed plate 4-24. The fixed optical axis 4-23 and the fixed plate 4-24 can support the screw in the seventh ball screw pair 4-20 to ensure the straightness during the movement.

[0051] Furthermore, the end of the screw in the seventh ball screw pair 4-20 passes through the first mounting frame 4-14 and extends to the side away from the hydraulic chuck 7, and a protective sheet metal 4-25 for protecting the screw is provided on the end surface of the first mounting frame 4-14.

[0052] When working, the eighth servo motor 4-19 rotates, and drives the nut in the seventh ball screw pair 4-20 to rotate through the belt transmission, thereby driving the screw to reciprocate along the length direction of the first mounting frame, and the screw drives the nylon core 12 to reciprocate. When the position needs to be adjusted, the seventh servo motor 4-18 is driven, and the seventh servo motor 4-18 drives the screw of the sixth ball screw pair 4-17 to rotate, thereby causing the nut in the sixth ball screw pair 4-17 to drive the second mounting frame to reciprocate along the length direction of the first mounting frame. The seventh guide rail pair 4-16 on the second mounting frame realizes the guide support of the linear motion.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bending device for a car luggage rack, comprising a frame and a platform arranged on the frame, characterized in that: Two bending assemblies with the same structure are symmetrically arranged on the frames located on both sides of the machine platform, and the bending assembly includes a rotating mechanism and a swinging mechanism; The rotating mechanism comprises a turntable base arranged on the frame and a turntable arranged on the turntable base, and the mounting end of the turntable is rotatably arranged on the turntable base through a slewing bearing; The upper end surface of the turntable is provided with a mounting frame, a through hole is provided on the mounting frame in the vertical direction, a movable frame movable in the vertical direction is provided on the end surface of the mounting frame opposite to the through hole, the swing mechanism is provided in the movable frame, the swing mechanism includes a swing frame provided in the movable frame and capable of longitudinal swinging, a swing arm body capable of transverse swinging is provided in the swing frame, the swing arm body passes through the through hole in the horizontal direction and extends to the side of the machine platform; A hydraulic chuck is arranged at the end of the swing arm body located on the machine side, and a nylon core is arranged horizontally between the two chucks of the hydraulic chuck; the swing arm body includes a first mounting frame and a second mounting frame arranged in the first mounting frame, and a seventh ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, and the mounting end of the nylon core passes through the hydraulic chuck and the electric turntable in sequence and is connected to the screw of the seventh ball screw pair, and the second mounting frame is provided with an eighth servo motor for driving the nut in the seventh ball screw pair to rotate.

2. The bending device of the automobile luggage rack according to claim 1, characterized in that: A second guide rail pair is arranged on the upper end surface of the turntable base, the guide rail in the second guide rail pair is an annular guide rail which coincides with the rotation trajectory of the turntable, the turntable is arranged on the slider of the second guide rail pair, a gear ring which coincides with the rotation trajectory of the turntable is arranged on the outer edge of the turntable base, a second servo motor is arranged on the turntable located on the gear ring side, and a gear which meshes with the gear ring is arranged on the output shaft of the second servo motor.

3. The bending device for a luggage rack of a vehicle according to claim 1 or 2, characterized in that: The outer wall of the second mounting frame is provided with a seventh guide rail pair, and the inner wall of the first mounting frame is connected to the slider of the seventh guide rail pair; A sixth ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, a seventh servo motor is arranged on the end surface of the first mounting frame away from the hydraulic chuck side, the output shaft of the seventh servo motor is connected to the screw of the sixth ball screw pair, and the nut of the sixth ball screw pair is connected to the second mounting frame; The second mounting frame comprises a movable plate arranged at a side away from the hydraulic chuck, and the nut of the seventh ball screw pair is mounted on the movable plate through a roller bearing; A mounting hole is formed on the side wall of the first mounting frame along the length direction, and a movable plate on the side of the mounting hole passes through the mounting hole and extends outward, and the eighth servo motor is mounted on the movable plate extending to the outside of the first mounting frame.

4. The bending device for a luggage rack of a vehicle according to claim 3, characterized in that: A fixed optical axis is arranged in the first mounting frame and the second mounting frame along the length direction, and the fixed optical axis is connected to the lead screw of the seventh ball screw pair via a fixed plate; The end of the lead screw in the seventh ball screw pair passes through the first mounting frame and extends to a side away from the hydraulic chuck, and a protective sheet metal for protecting the lead screw is arranged on the end surface of the first mounting frame.

5. The bending device for a luggage rack of a vehicle according to claim 1, characterized in that: The hydraulic chuck is arranged at the end of the swing arm body through an electric turntable.

6. The bending device for a luggage rack of a vehicle according to claim 1, characterized in that: The horizontal sides of the swing frame are arranged in the moving frame through horizontal rotating shafts, and a supporting frame is arranged on the moving frame. A fifth servo motor and a fifth guide rail pair arranged in a vertical direction are arranged on the supporting frame, and a first hinge block is arranged on the slider of the fifth guide rail pair, and the first hinge block is hinged to the upper end surface of the swing frame through a first hinge; a fourth ball screw pair is penetrated through the first hinge block in the vertical direction, the nut of the fourth ball screw pair is connected to the first hinge block, and the output shaft of the fifth servo motor is connected to the screw in the fourth ball screw pair.

7. The bending device for a luggage rack of a vehicle according to claim 1, characterized in that: The vertical ends of the swing arm body are arranged in the swing frame through a vertical rotating shaft, and a sixth servo motor and a sixth guide rail pair arranged along the length direction of the swing arm body are arranged on the swing arm body away from the hydraulic chuck installation side, and a second hinge block is arranged on the slider of the sixth guide rail pair, and the second hinge block is hinged to the side wall of the swing frame through a second hinge; a fifth ball screw pair is arranged through the second hinge block in the horizontal direction, the nut of the fifth ball screw pair is connected to the second hinge block, and the output shaft of the sixth servo motor is connected to the screw in the ball screw pair.

8. The bending device for a luggage rack of a vehicle according to claim 1, characterized in that: The upper end surface of the frame is provided with a first guide rail pair along the horizontal direction of the frame, the turntable base is installed on the slider of the first guide rail pair, a first servo motor and a first ball screw pair arranged along the horizontal direction of the frame are arranged in the frame, the output shaft of the first servo motor is connected to the screw in the first ball screw pair, and the nut of the first ball screw pair is connected to the lower end surface of the turntable base.

9. The bending device for a luggage rack of an automobile according to claim 1, characterized in that: A third guide rail pair is arranged on the upper end surface of the turntable along the horizontal direction of the turntable, and the lower end surface of the mounting frame is installed on the slider of the third guide rail pair. A third servo motor and a second ball screw pair arranged along the horizontal direction of the turntable are arranged in the turntable, and the output shaft of the third servo motor is connected to the screw in the second ball screw pair, and the nut of the second ball screw pair is connected to the lower end surface of the mounting frame.

10. The bending device of the automobile luggage rack according to claim 1, characterized in that: A fourth guide rail pair is arranged on the end surface of the mounting frame, the movable frame is arranged on the slider of the fourth guide rail pair, a third ball screw pair is arranged on the mounting frame in the vertical direction, the screw in the third ball screw pair is connected to the movable frame, and a fourth servo motor for driving the nut in the third ball screw pair to rotate is arranged on the mounting frame.

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