Roller path turning finishing device for slewing bearing

Abstract

The present application relates to slewing bearing turning technical field, solve the problem of not being able to meet the high-precision machining of slewing bearing, specifically is used in raceway turning finishing device in slewing bearing, including processing platform, the top of processing platform is fixedly installed with rack, the bottom of rack is fixedly installed with lifting push cylinder, the bottom end of lifting push cylinder is fixedly connected with horizontal plate, the bottom of horizontal plate is annularly provided with multiple groups of slide rails, the slide rail is fixedly connected at the bottom of horizontal plate, the inside of slide rail is slidably connected with sliding block, the bottom of sliding block is provided with synchronous abutting assembly, the top of processing platform is fixedly installed with inner support clamp and turning mechanism, compared with the prior art, the present application is by setting the abutting roller with adjustable abutting range on the top of slewing bearing, and cooperating with the inner support clamp to provide vertical and horizontal thrust for the slewing bearing at the same time, effectively solve the problem of inner support deformation of slewing bearing.

Description

Technical Field

[0001] This invention relates to the field of slewing bearing turning technology, specifically to a finishing apparatus for raceway turning in slewing bearings. Background Technology

[0002] Slewing bearings are large bearings capable of withstanding comprehensive loads, simultaneously bearing large axial and radial loads and overturning moments. Slewing bearings generally have mounting holes, internal or external gears, lubrication holes, and sealing devices, thus enabling compact host machine designs and easy maintenance. Slewing bearings come in four series: toothless, external gear, and internal gear four-point contact ball bearings; double-row angular contact ball bearings; crossed cylindrical roller bearings; crossed tapered roller bearings; and three-row cylindrical roller composite bearings. Four-point contact ball bearings have high static load capacity, crossed cylindrical roller bearings have high dynamic load capacity, and the preload of crossed tapered roller bearings provides greater support rigidity and rotational accuracy. The increased load-carrying capacity of three-row cylindrical roller composite bearings leads to higher bearing height.

[0003] Slewing bearings are characterized by large diameter and thin walls. In addition, the high machining accuracy requirements of slewing bearings themselves can easily lead to the inability of traditional turning equipment and internal support fixing equipment to meet the high precision requirements of slewing bearings. Furthermore, during the turning process, the turning tool rolls against the slewing bearing. Due to the thin wall of the slewing bearing, it will generate vertical vibration, which will affect the turning accuracy of the slewing bearing.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a finishing device for raceway turning in slewing bearings. A slider installed in a ring at equal angles drives the corresponding synchronous clamping components connected below to move synchronously, so that the circle formed by the synchronous clamping components can more closely clamp slewing bearings of different diameters. Multiple sets of abutment rollers arranged inside the housing are also arc-shaped, so that the abutment rollers can clamp the top of slewing bearings of different diameters while eliminating vibration during the turning process of the slewing bearing. It can also ensure that the normal rotation of the slewing bearing is not hindered by the abutment rollers, which greatly improves the turning accuracy of the slewing bearing and solves the technical defects mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a finishing device for turning raceways in a slewing bearing, comprising a machining platform, a frame fixedly mounted on the top of the machining platform, a lifting push cylinder fixedly mounted on the bottom of the frame, a horizontal plate fixedly connected to the bottom end of the lifting push cylinder, multiple sets of slide rails arranged in a ring at the bottom of the horizontal plate, the slide rails fixedly connected to the bottom of the horizontal plate, a slider slidably connected inside the slide rails, a synchronous clamping component provided at the bottom of the slider, and an internal support fixture and a turning mechanism fixedly mounted on the top of the machining platform.

[0007] Furthermore, the synchronous clamping assembly includes a sliding frame and a sliding rod. The sliding frame is fixedly connected to the bottom of the slider. The two ends of the sliding rod are fixed to the inner wall of the sliding frame by spot welding. Two sliding seats are sleeved on the outer side of the sliding rod. One sliding seat is slidably connected to the sliding rod, and the other sliding seat is fixedly connected to the sliding rod. A miniature electric push rod is fixedly connected to the top of the inner wall of the sliding frame. The output end of the miniature electric push rod is fixedly connected to the side wall of the corresponding sliding seat.

[0008] Furthermore, a bracket is fixedly connected to the bottom of the sliding seat, and an abutment rod is rotatably connected inside the bracket. The middle parts of two corresponding abutment rods are rotatably connected to each other. A cover is provided at the bottom of the abutment rod, and an I-shaped groove is opened at the top of the cover. Two I-shaped limiting blocks are provided in the I-shaped groove. One I-shaped limiting block is slidably connected in the I-shaped groove, and the other I-shaped limiting block is fixedly connected in the I-shaped groove. A bracket is fixedly connected to the top of the I-shaped limiting block. The bottom end of the abutment rod is rotatably connected to the bracket. Multiple sets of abutment rollers are movably connected to the bottom of the cover through bearings.

[0009] Furthermore, a support rod is fixedly connected to the side wall of the cover, and an air blowing valve is fixedly connected to the bottom of the support rod. An oiling mechanism is provided on the side of the support rod, which includes an oil supply frame and an oil supply pipe. A secondary rod frame is fixedly fixed to the side wall of the support rod by spot welding. The oil supply frame is fixedly installed at the bottom of the secondary rod frame, and multiple sets of through pipes are connected to the side wall of the oil supply frame.

[0010] Furthermore, a transfer pipe is fixedly installed on the top of the auxiliary rod frame, and the transfer pipe is connected to the oil delivery frame. A diverter shaft is movably connected inside the transfer pipe through a bearing. An oil outlet groove is opened through the middle of the diverter shaft. The bottom end of the first oil delivery pipe is connected to the top of the transfer pipe. Brush bristles are installed inside the pipe.

[0011] Furthermore, a support is fixedly connected to the top of the secondary frame, and a connecting shaft is movably connected inside the transfer tube via a bearing. One end of the connecting shaft is fixedly connected to the splitter shaft, and the other end of the connecting shaft is fixedly connected to a motor.

[0012] Furthermore, a rotating shaft is movably connected to the bottom center of the horizontal plate via a bearing. A toothed ring is fixedly connected to the outer side of the rotating shaft. An electric push cylinder is fixedly installed at the bottom of the horizontal plate. A toothed plate that meshes with the toothed ring is fixedly connected to the output end of the electric push cylinder. The toothed plate is slidably connected to the bottom of the horizontal plate. A turntable is fixedly connected to the bottom end of the rotating shaft. A connecting rod is rotatably connected to the side wall of the turntable. One end of the connecting rod is rotatably connected to a corresponding slider.

[0013] Compared with the prior art, the beneficial effects of the present invention are: In use, the present invention uses a slider installed at equal angles in a ring to drive the corresponding synchronous clamping components below to move synchronously. This allows the circle formed by the synchronous clamping components to conform to the contours of slewing bearings of different diameters, facilitating a closer clamping of the slewing bearings. Furthermore, the cover is arc-shaped, and the multiple sets of abutment rollers inside the cover are also arc-shaped. This allows the abutment rollers to clamp the tops of slewing bearings of different diameters while eliminating vibrations during the turning process of the slewing bearings. It also ensures that the normal rotation of the slewing bearings is not hindered by the abutment rollers, thereby greatly improving the turning accuracy of the slewing bearings.

[0014] In use, the motor controls the distributor shaft to rotate in a circular motion, intermittently connecting the oil outlet groove, the oil delivery pipe, and the oil delivery frame. This enables a quantitative output of lubricating oil, effectively preventing waste. Furthermore, the inclined design of the pipe directs the lubricating oil into the corresponding pipe, allowing the brush bristles to absorb the oil. Combined with the rotating slewing bearing, the brush bristles coat the slewing bearing's raceway with lubricating oil, thus cooling the bearing. Simultaneously, the cutting head of the turning mechanism, which comes into contact with the lubricating oil, is also cooled, significantly improving the turning accuracy of the slewing bearing. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a perspective view of the synchronous clamping component of the present invention; Figure 2 This is a bottom view of the horizontal plate structure in this invention; Figure 3 This is a top view of the processing platform structure in this invention; Figure 4 This is a schematic diagram of the internal structure of the transfer pipe and oil delivery frame in this invention; Figure 5 This is a schematic diagram of the internal structure of the sliding frame in this invention; Figure 6 This is a schematic diagram of the casing structure in this invention; Figure 7 This is a schematic diagram of the toothed plate structure in this invention; Figure 8 This is a front view of the lifting cylinder structure in this invention.

[0016] Reference numerals: 1. Processing platform; 2. Frame; 3. Lifting cylinder; 4. Horizontal plate; 5. Slide rail; 6. Slider; 7. Synchronous clamping assembly; 701. Slide frame; 702. Slide rod; 703. Slide seat; 704. Miniature electric push rod; 705. Abutting rod; 706. Cover; 707. I-shaped slide groove; 708. I-shaped limit block; 709. Abutting roller; 8. Support rod; 9. Air blowing. 10. Valve; 101. Oiling mechanism; 102. Oil delivery frame; 103. Oil delivery pipe 1; 104. Through pipe; 105. Transfer pipe; 106. Diverter shaft; 107. Oil outlet groove; 108. Brush bristles; 11. Sub-rod frame; 12. Connecting shaft; 13. Motor; 14. Internal support fixture; 15. Turning mechanism; 16. Turntable; 17. Connecting rod; 18. Gear ring; 19. Electric push cylinder; 20. Gear plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: As Figures 1-8 As shown, the finishing device for turning raceways in a slewing bearing includes a machining platform 1, a frame 2 fixedly mounted on the top of the machining platform 1, a lifting cylinder 3 fixedly mounted on the bottom of the frame 2, a horizontal plate 4 fixedly connected to the bottom end of the lifting cylinder 3, multiple sets of slide rails 5 arranged in a ring at the bottom of the horizontal plate 4, the slide rails 5 fixedly connected to the bottom of the horizontal plate 4, a slider 6 slidably connected inside the slide rails 5, a synchronous clamping component 7 provided at the bottom of the slider 6, and an internal support fixture 14 and a turning mechanism 15 fixedly mounted on the top of the machining platform 1. It should be noted that the inner support fixture 14 and the turning mechanism 15 are existing mechanisms. The inner support fixture 14 is used to support the circular inner sidewall of the slewing bearing to be machined. The turning mechanism 15 is used to turn the raceway of the sidewall of the slewing bearing. A rotating shaft is movably connected to the bottom center of the horizontal plate 4 through a bearing. A toothed ring 18 is fixedly connected to the outer side of the rotating shaft. An electric push cylinder 19 is fixedly installed at the bottom of the horizontal plate 4. A toothed plate 20 that meshes with the toothed ring 18 is fixedly connected to the output end of the electric push cylinder 19. The toothed plate 20 is slidably connected to the bottom of the horizontal plate 4. A turntable 16 is fixedly connected to the bottom end of the rotating shaft. A connecting rod 17 is rotatably connected to the sidewall of the turntable 16. One end of the connecting rod 17 is rotatably connected to the corresponding slider 6. The synchronous clamping assembly 7 includes a sliding frame 701 and a sliding rod 702. The sliding frame 701 is fixedly connected to the bottom of the slider 6. The two ends of the sliding rod 702 are fixed to the inner wall of the sliding frame 701 by spot welding. Two sliding seats 703 are sleeved on the outer side of the sliding rod 702. One sliding seat 703 is slidably connected to the sliding rod 702, and the other sliding seat 703 is fixedly connected to the sliding rod 702. A miniature electric push rod 704 is fixedly connected to the top of the inner wall of the sliding frame 701. The output end of the miniature electric push rod 704 is fixedly connected to the side wall of the corresponding sliding seat 703.

[0019] A bracket 1 is fixedly connected to the bottom of the sliding seat 703. An abutment rod 705 is rotatably connected inside the bracket 1. The middle parts of two corresponding abutment rods 705 are rotatably connected to each other. A cover 706 is provided at the bottom of the abutment rod 705. An I-shaped groove 707 is opened at the top of the cover 706. Two I-shaped limiting blocks 708 are provided inside the I-shaped groove 707. One I-shaped limiting block 708 is slidably connected inside the I-shaped groove 707, and the other I-shaped limiting block 708 is fixedly connected inside the I-shaped groove 707. A bracket 2 is fixedly connected to the top of the I-shaped limiting block 708. The bottom end of the abutment rod 705 is rotatably connected to the bracket 2. Multiple sets of abutment rollers 709 are movably connected to the bottom of the cover 706 through bearings. A support rod 8 is fixedly connected to the side wall of the cover 706. An air blowing valve 9 is fixedly connected to the bottom of the support rod 8. An oiling mechanism 10 is provided on the side of the support rod 8.

[0020] In the specific setup, the slewing bearing to be processed is placed in the inner support fixture 14. The inner support fixture 14 presses against the inner circular sidewall of the slewing bearing to be processed. At this time, the electric push cylinder 19 is activated. The electric push cylinder 19 drives the toothed plate 20 to slide, thereby causing the toothed ring 18 and the rotating shaft, which are meshed with the toothed plate 20, to rotate synchronously. During the rotation of the rotating shaft, the turntable 16 is driven to rotate. During the rotation of the turntable 16, the slider 6 is driven to slide along the slide rail 5 through the connecting rod 17 until the circle formed by the synchronous pressing components 7 set below the multiple sliders 6 matches the contour of the slewing bearing. Then, the micro electric push rod 704 is activated, which drives one of the sliding seats 703 to slide along the slide rod 702. During the sliding process, the sliding seat 703 drives the corresponding connected abutment rod 705 to deflect each other. During the deflection process, the abutment rod 705 drives the corresponding connected I-shaped limit block 708 to slide along the I-shaped slide groove 707, thereby realizing the lifting and fine adjustment of the cover 706. Then, the lifting push cylinder 3 is activated, which drives the horizontal plate 4 to descend synchronously until the synchronous pressing component 7 descends to a position close to the top of the slewing bearing. At this time, the abutment roller 709 included in the synchronous pressing component 7, whose position has been adjusted, abuts against the top of the slewing bearing. It should be noted here that, as Figure 1As shown, the cover 706 is arc-shaped, and the multiple sets of abutment rollers 709 inside the cover 706 are also arc-shaped. This allows the abutment rollers 709 to press against the top of slewing bearings of different diameters while ensuring that the normal rotation of the slewing bearing is not hindered by the abutment rollers 709, which greatly improves the turning accuracy of the slewing bearing.

[0021] After the slewing bearing is pressed against the inner wall of the inner support fixture 14 and the top of the synchronous pressing component 7, the inner support fixture 14 drives the slewing bearing to rotate. At the same time, the turning mechanism 15 performs raceway turning on the slewing bearing. Because the synchronous pressing component 7 is provided on the top of the slewing bearing to be processed, multiple sets of abutting rollers 709 arranged in an arc shape always abut against and roll on the top of the rotating slewing bearing. Meanwhile, the slide rail 5 is arranged in a ring at equal angles, so that the multiple sets of abutting rollers 709 are also arranged in a ring at equal angles, so that the force points of the slewing bearing being abutted are balanced. This avoids the problem that the pressure on one side of the slewing bearing is too high during the process of being pressed by the synchronous pressing component 7, which would cause the bearing to be placed unevenly and affect the turning accuracy.

[0022] Example 2: The oiling mechanism 10 includes an oil delivery frame 101 and an oil delivery pipe 102. The side wall of the support rod 8 is fixed with a secondary rod frame 11 by spot welding. The oil delivery frame 101 is fixedly installed at the bottom of the secondary rod frame 11. The side wall of the oil delivery frame 101 is connected to multiple sets of through pipes 103.

[0023] A transfer pipe 104 is fixedly installed on the top of the auxiliary rod frame 11, and the transfer pipe 104 is connected to the oil supply frame 101. A diverter shaft 105 is movably connected inside the transfer pipe 104 through a bearing. An oil outlet groove 106 is opened through the middle of the diverter shaft 105. The bottom end of the oil supply pipe 102 is connected to the top of the transfer pipe 104. A brush bristle 107 is installed inside the through pipe 103. A support is fixedly connected to the top of the auxiliary rod frame 11. A connecting shaft 12 is movably connected inside the transfer pipe 104 through a bearing. One end of the connecting shaft 12 is fixedly connected to the diverter shaft 105, and the other end of the connecting shaft 12 is fixedly connected to a motor 13. During the turning process of the slewing bearing, both the slewing bearing and the turning tool will generate a lot of heat. If the turning tool does not add lubricating oil for a long time, it will affect the turning accuracy of the slewing bearing. Moreover, the slewing bearing has a large diameter and thin wall, and it is also prone to slight deformation when overheated, which will also affect the turning accuracy. To solve the above problems, the specific improvements are as follows: During the turning process of the slewing bearing, the air blowing valve 9 cools the turning raceway and cleans the waste chips through the cooperation of the external conduit and the air supply mechanism. The motor 13 drives the split shaft 105 to rotate through the connecting shaft 12. The top of the split shaft 105 is provided with an oil outlet groove 106. One end of the oil supply pipe 102 is connected to the external lubricating oil tank, and the other end of the oil supply pipe 102 is connected to the transfer pipe 104. During the process of the motor 13 driving the split shaft 105 to rotate in a circular motion, when the oil outlet groove 106 is connected to the oil supply pipe 102 and the top of the oil supply frame 101, the lubricating oil flows from the oil supply pipe 102 to the oil outlet groove 106, and then to the oil supply frame 101. The through pipe 103 is inclined, so the lubricating oil flows into the corresponding through pipe 103, allowing the bristles 107 to absorb the lubricating oil. In conjunction with the rotating slewing bearing, the bristles 107 coat the slewing bearing with lubricating oil, thus cooling the slewing bearing. At the same time, the cutting head of the turning mechanism 15 is also cooled by contact with the lubricating oil, thereby greatly improving the turning accuracy of the slewing bearing. Furthermore, the motor 13 controls the flow divider shaft 105 to rotate in a circular motion, so that the oil outlet 106 is intermittently connected with the oil delivery pipe 102 and the oil delivery frame 101, thereby realizing the quantitative output of lubricating oil and effectively avoiding the problem of lubricating oil waste.

[0024] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A finishing apparatus for raceways in slewing bearings, comprising a machining platform (1), characterized in that, The top of the processing platform (1) is fixedly installed with a frame (2), the bottom of the frame (2) is fixedly installed with a lifting cylinder (3), the bottom end of the lifting cylinder (3) is fixedly connected with a horizontal plate (4), the bottom of the horizontal plate (4) is provided with multiple sets of slide rails (5) in a ring shape, the slide rails (5) are fixedly connected to the bottom of the horizontal plate (4), the slide rails (5) are slidably connected with a slider (6) inside the slide rails (5), the bottom of the slider (6) is provided with a synchronous clamping component (7), and the top of the processing platform (1) is fixedly installed with an internal support clamp (14) and a turning mechanism (15). The synchronous clamping assembly (7) includes a sliding frame (701) and a sliding rod (702). The sliding frame (701) is fixedly connected to the bottom of the slider (6). The two ends of the sliding rod (702) are fixed to the inner wall of the sliding frame (701) by spot welding. Two sliding seats (703) are sleeved on the outer side of the sliding rod (702). One sliding seat (703) is slidably connected to the sliding rod (702), and the other sliding seat (703) is fixedly connected to the sliding rod (702). A miniature electric push rod (704) is fixedly connected to the top of the inner wall of the sliding frame (701). The output end of the miniature electric push rod (704) is fixedly connected to the side wall of the corresponding sliding seat (703). The bottom of the sliding seat (703) is fixedly connected to a bracket, and abutment rod (705) is rotatably connected inside the bracket. The middle parts of two corresponding abutment rods (705) are rotatably connected to each other. A cover (706) is provided at the bottom of the abutment rod (705). An I-shaped groove (707) is provided at the top of the cover (706). Two I-shaped limiting blocks (708) are provided inside the I-shaped groove (707). One I-shaped limiting block (708) is slidably connected inside the I-shaped groove (707), and the other I-shaped limiting block (708) is fixedly connected inside the I-shaped groove (707). A bracket is fixedly connected to the top of the I-shaped limiting block (708). The bottom end of the abutment rod (705) is rotatably connected to the bracket. The bottom of the cover (706) is movably connected to multiple sets of abutment rollers (709) through bearings. A rotating shaft is movably connected to the bottom center of the horizontal plate (4) via a bearing. A toothed ring (18) is fixedly connected to the outer side of the rotating shaft. An electric push cylinder (19) is fixedly installed at the bottom of the horizontal plate (4). A toothed plate (20) that meshes with the toothed ring (18) is fixedly connected to the output end of the electric push cylinder (19). The toothed plate (20) is slidably connected to the bottom of the horizontal plate (4). A turntable (16) is fixedly connected to the bottom end of the rotating shaft. A connecting rod (17) is rotatably connected to the side wall of the turntable (16). One end of the connecting rod (17) is rotatably connected to a corresponding slider (6).

2. The finishing apparatus for raceway machining in a slewing bearing according to claim 1, characterized in that, The side wall of the cover (706) is fixedly connected to a support rod (8), the bottom of the support rod (8) is fixedly connected to an air blowing valve (9), and the side of the support rod (8) is provided with an oiling mechanism (10). The oiling mechanism (10) includes an oil delivery frame (101) and an oil delivery pipe (102). The side wall of the support rod (8) is fixed with a secondary rod frame (11) by spot welding. The oil delivery frame (101) is fixedly installed at the bottom of the secondary rod frame (11). The side wall of the oil delivery frame (101) is connected to multiple sets of through pipes (103).

3. The finishing apparatus for raceway machining in a slewing bearing according to claim 2, characterized in that, The top of the auxiliary rod frame (11) is fixedly installed with a transfer pipe (104), and the transfer pipe (104) is connected to the oil delivery frame (101). The transfer pipe (104) is movably connected with a split shaft (105) through a bearing. The middle of the split shaft (105) is provided with an oil outlet groove (106). The bottom end of the first oil delivery pipe (102) is connected to the top of the transfer pipe (104). The through pipe (103) is provided with bristles (107).

4. The finishing apparatus for raceway machining in a slewing bearing according to claim 3, characterized in that, The top of the sub-frame (11) is fixedly connected to a support, and the transfer tube (104) is movably connected to a connecting shaft (12) through a bearing. One end of the connecting shaft (12) is fixedly connected to the splitting shaft (105), and the other end of the connecting shaft (12) is fixedly connected to a motor (13).

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