A heavy duty rotary positioner

Abstract

The present invention discloses a heavy-duty rotary positioner, comprising a linear guide rail, wherein slide seats are respectively arranged at both ends of the linear guide rail, drive limit assemblies are respectively arranged at the bottom ends of the two slide seats and connected with the linear guide rail, mounting seats are respectively arranged on the two slide seats, support assemblies are respectively arranged on the two mounting seats and connected with gear rings, the two gear rings are rotatably arranged in the mounting seats through the support assemblies, a rotary drive assembly is arranged on the mounting seat beside the support assembly, the rotary drive assembly is meshedly connected with the bottom ends of the gear rings, and the top ends of the gear rings are arranged as an opening. The present invention will facilitate the rotary positioner to rotate large workpieces to a desired angle by arranging gear rings and gear ring caps in cooperation with support assemblies and rotary drive assemblies, will facilitate the large workpieces to be fixed in the gear rings and gear ring caps by upper adjusting clamping screws in cooperation with clamping oil cylinders and lifting and adjusting support assemblies, and will avoid the workpieces from shaking during rotation and machining, and the arrangement of the rotary drive assembly will increase the rotary drive power and ensure the rigidity of the positioner.

Description

Technical Field

[0001] The invention relates to the technical field of positioners, and in particular to a heavy-duty rotary positioner. Background Art

[0002] The positioner is a special welding auxiliary equipment, which is suitable for welding position shifting of rotary work to obtain the ideal processing position and welding speed. It can be used with the manipulator and welding machine to form an automatic welding center, and can also be used for workpiece position shifting during manual operation.

[0003] Most of the existing rotary positioners are only suitable for position processing of small workpieces, but cannot guarantee the rotation accuracy when rotating heavy workpieces. The workpiece is likely to shake during processing, and the stability is poor, so the required rotation angle cannot be achieved, thus affecting the welding process quality. In addition, the rotary positioner is not rigid enough when rotating heavy workpieces. When used for a long time, it is easy to cause wear and tear, which affects its rotation accuracy, and may even be scrapped, increasing costs. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a heavy-duty rotary positioner, comprising a linear guide rail, slide seats are respectively arranged at both ends of the linear guide rail, and driving limit assemblies are respectively arranged at the bottom ends of the two slide seats to connect with the linear guide rail;

[0005] The two slide seats are respectively provided with mounting seats, the two mounting seats are respectively provided with supporting assemblies connected with the gear rings, and the two gear rings are respectively rotatably arranged in the mounting seats through the supporting assemblies;

[0006] A rotary drive assembly is arranged on the mounting seat beside the supporting assembly, and the rotary drive assembly is meshedly connected with the bottom end of the gear ring;

[0007] The top of the gear ring is open, a gear ring cover cap is arranged on the top of the gear ring, and one end of the gear ring cover cap is hinged to one end of the gear ring;

[0008] A connecting rod stretching assembly is arranged at the top of the gear ring cap, and a bottom end of the connecting rod stretching assembly is hinged to a mounting seat;

[0009] An upper adjusting and clamping screw is arranged at the bottom end of the gear ring cover cap, clamping oil cylinders are arranged at both ends of the inner ring of the gear ring, and a lifting and adjusting support assembly is arranged at the bottom end of the inner ring of the gear ring.

[0010] Optionally, the drive limit assembly includes a rack, which is arranged on one end of the inner side of the linear guide rail, a gear is meshed on the rack, the gear is arranged on the output end of the servo motor, the servo motor is arranged on one end of the slide, a plurality of rollers are arranged at the bottom end of the slide to fit the linear guide rail, limit guide wheels are arranged next to the rollers at both ends of the linear guide rail, and the limit guide wheels are rotatably arranged at the bottom end of the slide.

[0011] Optionally, the support component includes an outer ring active support roller, which is fitted on the outer ring at the bottom end of the gear ring, and two outer ring active support rollers are symmetrically arranged on the left and right with the center line of the gear ring as the center of symmetry. Outer ring auxiliary support rollers are respectively arranged at the ends away from each other of the two active support rollers and are fitted on the outer ring of the gear ring. Inner ring first support rollers are respectively arranged above the two outer ring active support rollers, and two inner ring first support rollers are respectively fitted on the inner ring at the bottom end of the gear ring. Inner ring second support rollers are respectively arranged at the ends away from each other of the two inner ring first support rollers and are fitted on the inner ring of the gear ring.

[0012] Optionally, the rotation drive assembly includes a driving gear set, and the driving gear set also includes a left driving gear and a right driving gear, both of which are meshed with the bottom end of the ring gear, and the left driving gear and the right driving gear are symmetrically arranged with the center line of the ring gear as the center of symmetry, the left driving gear and the right driving gear are respectively connected to the output ends of two synchronous motors, and the two synchronous motors are respectively arranged on both ends of the mounting seat, the right driving gear is meshed with a tightening gear at one end away from the left driving gear, and the tightening gear is meshed with a driven gear at one end away from the right driving gear, the driven gear is meshed with the ring gear, and the tightening gear and the driven gear are both rotatably arranged in the mounting seat through a support frame.

[0013] Optionally, the gear ring cover cap is connected to the top of the gear ring by setting a hinge rod at one end close to the connecting rod stretching assembly, and the gear ring cover cap is connected to the top of the gear ring by a pin at one end away from the connecting rod stretching assembly.

[0014] Optionally, an end of the upper adjusting clamping screw away from the gear ring cover cap is threadedly connected to set an extended pressing sleeve, and a workpiece is set between the extended pressing sleeve, the clamping cylinder and the lifting and adjusting support assembly.

[0015] Optionally, the output ends of the two clamping oil cylinders are arranged opposite to each other, and the output ends of the two clamping oil cylinders are both threadedly connected with a pressure block.

[0016] Optionally, the connecting rod stretching assembly includes a ring gear cap connecting rod, a clamping wheel group is arranged at the top end of the ring gear cap connecting rod and is connected to the ring gear cap, the clamping wheel group is arranged into two groups, front and rear, respectively on the front and rear end surfaces of the ring gear cap, the clamping wheel group also includes two upper and lower clamping wheels, the upper and lower clamping wheels are respectively arranged to fit the outer ring and inner ring of the ring gear cap, the bottom end of the ring gear cap connecting rod is hingedly arranged on the mounting seat through a support frame, the end of the ring gear cap connecting rod away from the clamping wheel group is hingedly arranged to the output end of the stretching cylinder, and the stretching cylinder is hingedly arranged on the mounting seat through a support frame.

[0017] Optionally, the lifting and lowering adjustment support assembly includes a lower adjusting clamping screw, which is arranged in the bottom end of the gear ring through a bearing, a support plate is arranged at the top end of the lower adjusting clamping screw, and support guide columns are respectively arranged at both ends of the lower adjusting clamping screw. The bottom ends of the two support guide columns are respectively connected to the bottom end of the gear ring through guide sleeves, and the top ends of the two support guide columns are respectively connected to the two ends of the support plate.

[0018] Optionally, a limit roller group is respectively set at the left and right ends of the gear ring, and the limit roller group includes two front and rear limit rollers. The limit rollers are respectively set on the front and rear end surfaces of the gear ring, and the limit rollers and the gear ring are set perpendicular to each other. The limit rollers are respectively rotatably set on the two ends of the mounting seat.

[0019] The beneficial effects of the present invention are as follows: the structural design is reasonable, and the rotary positioner can be used to rotate large workpieces to the desired angle by setting the gear ring, gear ring cover cap, supporting assembly, and rotary drive assembly. At the same time, the upper adjusting clamping screw, clamping cylinder, and lifting and adjusting support assembly can be used to fix the large workpiece in the gear ring and gear ring cover cap, thereby avoiding the workpiece from shaking during rotation and processing, improving its stability, and ensuring the processing quality. The setting of the rotary drive assembly can also improve the rotary drive power, ensure the rigidity of the positioner, extend its service life, and reduce costs. The connecting rod stretching assembly can facilitate opening the gear ring cover cap and placing the workpiece into the gear ring, thereby improving its work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the sliding seat, the mounting seat, the gear ring and the gear ring cover cap in the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the sliding seat, the mounting seat, the gear ring and the gear ring cover cap in the present invention;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the sliding seat, the mounting seat, the gear ring and the gear ring cover cap in the present invention;

[0026] Figure 6 It is a side view structural schematic diagram of the sliding seat, the mounting seat, the gear ring and the gear ring cover cap in the present invention;

[0027] Figure 7 yes Figure 6 Schematic diagram of the AA cross-section structure.

[0028] In the figure: 1. Linear guide; 2. Slide; 3. Mounting seat; 4. Gear ring; 5. Outer ring active support roller; 501. Outer ring auxiliary support roller; 6. Inner ring first support roller; 7. Inner ring second support roller; 8. Gear ring cap; 9. Clamping wheel group; 10. Gear ring cap connecting rod; 11. Stretching cylinder; 12. Upper adjustment clamping screw; 13. Lengthened pressure sleeve; 14. Clamping cylinder; 15. Rack; 16. Gear; 17. Servo motor; 18. Roller; 19. Limiting guide wheel; 20. Synchronous motor; 21. Driving gear group; 22. Tightening gear; 23. Driven gear; 24. Support frame; 25. Lower adjustment clamping screw; 26. Support plate; 27. Support guide column; 28. Guide sleeve; 29. ​​Articulated rod; 30. Pin; 31. Workpiece. DETAILED DESCRIPTION

[0029] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-7 A heavy-duty rotary positioner shown includes a linear guide rail 1, slide seats 2 are respectively arranged at both ends of the linear guide rail 1, and driving limit assemblies are respectively arranged at the bottom ends of the two slide seats 2 to connect with the linear guide rail 1;

[0034] The two slide seats 2 are respectively provided with mounting seats 3, and the two mounting seats 3 are respectively provided with supporting assemblies connected with the gear ring 4, and the two gear rings 4 are respectively rotatably arranged in the mounting seats 3 through the supporting assemblies;

[0035] A rotation drive assembly is arranged beside the support assembly on the mounting seat 3, and the rotation drive assembly is meshedly connected with the bottom end of the gear ring 4;

[0036] The top of the gear ring 4 is open, and a gear ring cover 8 is provided on the top of the gear ring 4. One end of the gear ring cover 8 is hinged to one end of the gear ring 4.

[0037] A connecting rod stretching assembly is arranged at the top of the gear ring cap 8, and the bottom end of the connecting rod stretching assembly is hinged to the mounting seat 3;

[0038] An upper adjustment clamping screw 12 is arranged at the bottom of the gear ring cap 8, clamping oil cylinders 14 are arranged at both ends of the inner ring of the gear ring 4, and a lifting adjustment support assembly is arranged at the bottom of the inner ring of the gear ring 4. It should be noted that the operation of the driving limit assembly will facilitate the adjustment of the working position of the slide 2 on the linear guide rail 1, so that it is suitable for installation and positioning of workpieces of different lengths. The setting of the support assembly will ensure that it is suitable for heavy workpieces to rotate with the stability of the gear ring 4, share the load, and improve its support strength. The rotation drive assembly provides the power to drive the gear ring 4 to rotate, and at the same time ensures its rigidity so that the gear ring 4 can be stably rotated to the required angle. The connecting rod stretching assembly will facilitate the opening and closing of the gear ring cap 8 on the gear ring 4, so that it is convenient to place the workpiece in the gear ring 4 for fixing. The upper adjustment clamping screw 12 and the clamping oil cylinder 14 cooperate with the lifting adjustment support assembly to facilitate the positioning and fixing of the workpiece, so that it is stable and reliable during rotation and processing, and the processing quality is guaranteed.

[0039] Specifically, the driving limit assembly includes a rack 15, the rack 15 is arranged on one end of the inner side of the linear guide 1, a gear 16 is meshed on the rack 15, the gear 16 is arranged on the output end of the servo motor 17, the servo motor 17 is arranged on one end of the slide 2, a plurality of rollers 18 are arranged at the bottom of the slide 2 to fit the linear guide 1, and limit guide wheels 19 are arranged beside the rollers 18 at both ends of the linear guide 1, and the limit guide wheels 19 are rotatably arranged at the bottom of the slide 2. It should be noted that the servo motor 17 drives the gear 16 to rotate and cooperate with the rack 15 so that the slide 2 moves to the desired working position on the linear guide 1. At the same time, by arranging the rollers 18 and the limit guide wheels 19, it is convenient to limit the movement of the slide 2 to ensure its stable movement.

[0040] Specifically, the support assembly includes an outer ring active support roller 5, which is fitted on the outer ring at the bottom end of the gear ring 4. The outer ring active support roller 5 is symmetrically arranged with the center line of the gear ring 4 as the symmetry center. The two active support rollers 5 are respectively provided with outer ring auxiliary support rollers 501 which are fitted on the outer ring of the gear ring 4 at the ends far away from each other. The inner ring first support rollers 6 are respectively arranged above the two outer ring active support rollers 5. The two inner ring first support rollers 6 are respectively fitted on the inner ring at the bottom end of the gear ring 4. The two inner ring first support rollers 6 are respectively provided with inner ring second support rollers 7 which are fitted on the inner ring of the gear ring 4 at the ends far away from each other. It should be noted that the outer ring active support roller 5, the outer ring auxiliary support roller 501, the inner ring first support roller 6 and the inner ring second support roller 7 cooperate to support and limit the gear ring 4, maintain the rotation angle of the gear ring 4, and share the load at the same time to ensure the load support strength, which is suitable for large workpieces.

[0041] Specifically, the rotary drive assembly includes a driving gear set 21, and the driving gear set 21 also includes a left driving gear and a right driving gear. The left driving gear and the right driving gear are both meshed with the bottom end of the ring gear 4. The left driving gear and the right driving gear are symmetrically arranged with the center line of the ring gear as the center of symmetry. The left driving gear and the right driving gear are respectively connected to the output ends of the two synchronous motors 20, and the two synchronous motors 20 are respectively arranged on both ends of the mounting seat 3. The right driving gear is meshed with a tightening gear 22 at one end away from the left driving gear, and the tightening gear 22 is meshed with a driven gear 23 at one end away from the right driving gear. The driven gear 23 is meshed with the ring gear 4, and the tightening gear 22 and the driven gear 23 are both rotatably arranged in the mounting seat 3 through a support frame 24. It should be noted that the synchronous motor 20 drives the driving gear set 21 to rotate, thereby causing the tightening gear 22 to rotate, driving the driven gear 23 to rotate, and then driving the ring gear 4 to rotate in the mounting seat 3 to the required working angle. At the same time, the tightening gear 22 cooperates with the setting of the driving gear set 21 and the driven gear 23 to ensure the stability of the ring gear 4 during starting and stopping, and ensures the stiffness of the rotating drive assembly, and ensures the accuracy of the ring gear 4 during rotation.

[0042] Specifically, the end of the gear ring cap 8 close to the connecting rod stretching assembly is connected to the top of the gear ring 4 by setting a hinge rod 29, and the end of the gear ring cap 8 away from the connecting rod stretching assembly is connected to the top of the gear ring 4 by a latch 30. It should be noted that the connecting rod stretching assembly works to make the gear ring cap 8 rotate open and close with the hinge of the hinge rod 29 as the rotation center, and when the gear ring cap 8 is closed, it is fixedly connected to the gear ring 4 through the latch 30.

[0043] Specifically, the upper adjusting clamping screw 12 is threadedly connected to the end away from the gear ring cap 8 to set the extended pressing sleeve 13, and the workpiece 31 is set between the extended pressing sleeve 13, the clamping oil cylinder 14 and the lifting adjustment support assembly. It should be noted that the setting of the extended pressing sleeve 13 will facilitate the adjustment and matching of the upper adjusting clamping screw 12 to be suitable for clamping and positioning workpieces of different heights.

[0044] Specifically, the output ends of the two clamping oil cylinders 14 are arranged opposite to each other, and the output ends of the two clamping oil cylinders 14 are both threadedly connected with a pressure block. It should be noted that the clamping oil cylinders 14 work in conjunction with the pressure sensor to clamp and fix the two ends of the workpiece.

[0045] Specifically, the connecting rod stretching assembly includes a ring gear cap connecting rod 10, a tightening wheel group 9 is arranged at the top end of the ring gear cap connecting rod 10 and connected to the ring gear cap 8, the tightening wheel group 9 is arranged as two front and rear groups respectively on the front and rear end surfaces of the ring gear cap 8, the tightening wheel group 9 also includes two upper and lower tightening wheels, the upper and lower tightening wheels are respectively arranged to fit the outer ring and inner ring of the ring gear cap 8, the bottom end of the ring gear cap connecting rod 10 is hingedly arranged on the mounting seat 3 through a support frame, the end of the ring gear cap connecting rod 10 away from the tightening wheel group 9 is hingedly connected to the output end of the stretching cylinder 11, and the stretching cylinder 11 is hingedly arranged on the mounting seat 3 through a support frame. It should be noted that the operation of the stretching cylinder 11 drives the ring gear cap connecting rod 10 to rotate on the mounting seat 3, thereby opening and closing the ring gear cap 8. The setting of the tightening wheel set 9 will roll on the hub of the ring gear cap 8 during the movement of the ring gear cap connecting rod 10, perform motion compensation for the motion trajectory position of the ring gear cap connecting rod 10, and realize the freedom of operation of the ring gear cap connecting rod 10.

[0046] Specifically, the lifting and adjusting support assembly includes a lower adjusting clamping screw 25, which is arranged in the bottom end of the gear ring 4 through a bearing, a support plate 26 is arranged at the top of the lower adjusting clamping screw 25, and support guide pillars 27 are respectively arranged at both ends of the lower adjusting clamping screw 25. The bottom ends of the two support guide pillars 27 are respectively connected to the bottom end of the gear ring 4 through guide sleeves 28, and the top ends of the two support guide pillars 27 are respectively connected to the two ends of the support plate 26. It should be noted that the lower adjusting clamping screw 25 is adjusted according to demand so that the support plate 26 is lifted to the required working position, and at the same time, the support guide pillars 27 cooperate with the guide sleeves 28 to move therewith, providing auxiliary support force to the support plate 26, so that the support plate 26 is suitable for supporting and positioning heavy workpieces of different specifications and sizes.

[0047] Specifically, the left and right ends of the gear ring 4 are respectively provided with a limit roller group, and the limit roller group includes two front and rear limit rollers, which are respectively provided on the front and rear end surfaces of the gear ring 4, and the limit rollers and the gear ring 4 are provided perpendicular to each other, and the limit rollers are rotatably provided on the two ends of the mounting seat 3. It should be noted that the setting of the limit roller group will ensure that the gear ring 4 is limited in motion and ensure its stability during the motion and rotation process.

[0048] The working principle of this specific embodiment is: first, according to the demand, the servo motor 17 drives the gear 16 to rotate and cooperate with the rack 15 so that the slide 2 moves on the linear guide rail 1 to the required working position;

[0049] The tensioning cylinder 11 cooperates with the tightening wheel set 9 to drive the ring gear cap connecting rod 10 to rotate on the mounting seat 3, so that the ring gear cap 8 rotates and opens at the top of the ring gear 4 with the hinge as the rotation center;

[0050] Then, according to the needs, the lower adjusting clamping screw 25 is adjusted to lift the support plate 26 to the required working position, and the workpiece is hoisted onto the support plate 26. Then, the clamping oil cylinder 14 is operated to clamp and position the two ends of the workpiece, and then the upper adjusting clamping screw 12 is lowered to cooperate with the support plate 26 to clamp and position the upper and lower ends of the workpiece.

[0051] After the workpiece is positioned, the stretching cylinder 11 works to rotate the gear ring cap 8 to reset, and then the latch 30 is used to fix the gear ring 4, so that the gear ring cap 8 and the gear ring 4 are combined into a complete gear ring;

[0052] The synchronous motor 20 drives the driving gear set 21 to rotate, so that the tightening gear 22 rotates accordingly, drives the driven gear 23 to rotate, and then drives the ring gear 4 and the ring gear cap 8 to rotate to the required working angle in the mounting seat 3. During the rotation of the ring gear 4 and the ring gear cap 8, the supporting force will be provided by the supporting assembly, and the rotation stability of the ring gear 4 and the ring gear cap 8 will be ensured, so as to achieve the effect of adjusting the rotating workpiece to the required angle for processing;

[0053] After the workpiece is processed, the synchronous motor 20 drives the gear ring 4 and the gear ring cap 8 to reset, the upper adjustment clamping screw 12 is rotated and reset away from the workpiece, the pin 30 is removed, the gear ring cap 8 is rotated and opened by the stretching cylinder 11, and the clamping cylinder 14 is reset away from the workpiece at the same time, and then the processed workpiece is hoisted and transported to the required working position.

[0054] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A heavy-duty rotary positioner, characterized in that: It comprises a linear guide rail, slide seats are respectively arranged at both ends of the linear guide rail, and driving limit assemblies are respectively arranged at the bottom ends of the two slide seats to be connected with the linear guide rail; The two slide seats are respectively provided with mounting seats, the two mounting seats are respectively provided with supporting assemblies connected with the gear rings, and the two gear rings are respectively rotatably arranged in the mounting seats through the supporting assemblies; A rotation drive assembly is arranged beside the support assembly on the mounting seat, and the rotation drive assembly is meshedly connected with the bottom end of the gear ring; The top of the gear ring is open, and a gear ring cover cap is provided on the top of the gear ring, and one end of the gear ring cover cap is hinged to one end of the gear ring; A connecting rod stretching assembly is disposed at the top of the gear ring cap, and a bottom end of the connecting rod stretching assembly is hinged to the mounting seat; An upper adjusting and clamping screw is arranged at the bottom end of the gear ring cover cap, clamping oil cylinders are arranged at both ends of the inner ring of the gear ring, and a lifting and adjusting support assembly is arranged at the bottom end of the inner ring of the gear ring; The support assembly comprises an outer ring active support roller, the outer ring active support roller is fitted on the outer ring at the bottom end of the gear ring, the outer ring active support roller is symmetrically arranged in two with the center line of the gear ring as the symmetry center, the two outer ring active support rollers are respectively provided with outer ring auxiliary support rollers fitted on the outer ring of the gear ring at ends away from each other, inner ring first support rollers are respectively arranged above the two outer ring active support rollers, the two inner ring first support rollers are respectively fitted on the inner ring at the bottom end of the gear ring, and the two inner ring first support rollers are respectively provided with inner ring second support rollers fitted on the inner ring of the gear ring at ends away from each other; The connecting rod stretching assembly includes a gear ring cap connecting rod, a tightening wheel group is arranged at the top end of the gear ring cap connecting rod and connected with the gear ring cap, the tightening wheel group is arranged in two groups, front and rear, respectively on the front and rear end surfaces of the gear ring cap, the tightening wheel group also includes two upper and lower tightening wheels, the upper and lower tightening wheels are respectively arranged in contact with the outer ring and inner ring of the gear ring cap, the bottom end of the gear ring cap connecting rod is hingedly arranged on the mounting seat through a support frame, the end of the gear ring cap connecting rod away from the tightening wheel group is hingedly connected to the output end of the stretching cylinder, and the stretching cylinder is hingedly arranged on the mounting seat through a support frame; The lifting and lowering adjustment support assembly includes a lower adjusting clamping screw, which is arranged in the bottom end of the gear ring through a bearing, a support plate is arranged at the top end of the lower adjusting clamping screw, and support guide columns are respectively arranged at both ends of the lower adjusting clamping screw, the bottom ends of the two support guide columns are respectively connected to the bottom end of the gear ring through guide sleeves, and the top ends of the two support guide columns are respectively connected to the two ends of the support plate.

2. A heavy-duty rotary positioner according to claim 1, characterized in that: The driving limit assembly includes a rack, which is arranged on one end of the inner side of the linear guide rail, a gear is meshed on the rack, the gear is arranged on the output end of the servo motor, the servo motor is arranged on one end of the slide, a plurality of rollers are arranged at the bottom end of the slide to fit the linear guide rail, limit guide wheels are arranged next to the rollers at both ends of the linear guide rail, and the limit guide wheels are rotatably arranged at the bottom end of the slide.

3. A heavy-duty rotary positioner according to claim 1, characterized in that: The rotary drive assembly includes a driving gear set, and the driving gear set also includes a left driving gear and a right driving gear. The left driving gear and the right driving gear are both meshed with the bottom end of the gear ring. The left driving gear and the right driving gear are symmetrically arranged with the center line of the gear ring as the symmetry center. The left driving gear and the right driving gear are respectively connected to the output ends of two synchronous motors, and the two synchronous motors are respectively arranged on both ends of the mounting seat. The right driving gear is meshed with a tightening gear at one end away from the left driving gear, and the tightening gear is meshed with a driven gear at one end away from the right driving gear. The driven gear is meshed with the gear ring, and the tightening gear and the driven gear are both rotatably arranged in the mounting seat through a support frame.

4. A heavy-duty rotary positioner according to claim 1, characterized in that: The end of the gear ring cap close to the connecting rod stretching assembly is connected to the top of the gear ring by setting a hinge rod, and the end of the gear ring cap away from the connecting rod stretching assembly is connected to the top of the gear ring by a pin.

5. A heavy-duty rotary positioner according to claim 1, characterized in that: An end of the upper adjusting clamping screw away from the gear ring cover cap is threadedly connected to provide an extended pressing sleeve, and a workpiece is provided between the extended pressing sleeve, the clamping oil cylinder and the lifting and adjusting support assembly.

6. A heavy-duty rotary positioner according to claim 1, characterized in that: The output ends of the two clamping oil cylinders are arranged opposite to each other, and the output ends of the two clamping oil cylinders are both threadedly connected with a clamping block.

7. A heavy-duty rotary positioner according to claim 1, characterized in that: A limiting roller group is respectively arranged at the left and right ends of the gear ring, and the limiting roller group includes two front and rear limiting rollers. The limiting rollers are respectively arranged on the front and rear end surfaces of the gear ring, and the limiting rollers and the gear ring are arranged perpendicular to each other. The limiting rollers are respectively rotatably arranged on the two ends of the mounting seat.

Images