Slewing bearing machining tool convenient to position
By innovating the design of positioning grooves and positioning blocks on the machining fixtures for slewing bearings, the problems of complex positioning and poor versatility in the existing technology are solved, achieving efficient positioning and simplified operation of slewing bearings of different sizes, and reducing production costs.
Patent Information
- Application Number
- CN202520409227.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing slewing bearings have complex positioning structures during processing, are inconvenient to operate, and are difficult to adapt to slewing bearings of different specifications and sizes, resulting in increased production costs and poor versatility.
A machining fixture for slewing bearings with easy positioning was designed. It features three positioning slots on the machining table, with positioning blocks slidably connected within the slots. The positioning blocks are kept stable by compression springs and anti-tilt rods. Combined with fine-tuning rods and spacing rods, it enables precise positioning of slewing bearings of different sizes.
It improves the positioning efficiency and versatility of slewing bearings, simplifies the operation process, reduces production costs, and adapts to the positioning needs of slewing bearings of different specifications and sizes.
Smart Images
Figure CN223820122U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slewing bearing technology, and in particular to a slewing bearing machining fixture that is easy to position. Background Technology
[0002] A slewing bearing typically consists of an inner ring, an outer ring, rolling elements, a cage, and sealing devices. The inner and outer rings have raceways in which the rolling elements roll, achieving relative rotation between the inner and outer rings. The cage separates the rolling elements to prevent them from colliding, while the sealing devices prevent lubricant leakage and the ingress of external impurities. A slewing bearing can withstand axial forces, radial forces, and overturning moments. Its principle is based on the rolling elements transferring the load to the base structure through the rolling of the rolling elements between the inner and outer ring raceways. When the slewing bearing is subjected to external forces, the contact points between the rolling elements and the raceways undergo elastic deformation, thereby absorbing and dispersing the load and ensuring the smooth operation of the slewing bearing. The manufacturing process of a slewing bearing includes forging, machining, heat treatment, and assembly. Forging is used to manufacture the blanks for the rings and rolling elements. Machining involves cutting and grinding the blanks to achieve the required dimensions and precision. Heat treatment involves surface induction hardening of the raceways and gears to improve their hardness and wear resistance. Finally, the rolling elements, cage, seals, and other components are assembled onto the inner and outer rings, and then debugged and tested. This technology is widely used in construction machinery such as excavators, loaders, bulldozers, cranes, and road rollers to achieve the rotational movement of the working device, enabling the machinery to operate in different directions. It is also used in metallurgical cranes, ladle slewing tables, steel grabbers, mud cannons, oxygen blowing devices, and other metallurgical equipment to meet the rotational support requirements of equipment in harsh environments such as high temperatures and heavy loads.
[0003] In the prior art, when machining a slewing bearing, the slewing bearing needs to be placed on a machining table and then positioned so that the position of the slewing bearing is suitable for the machine to perform machining, thereby ensuring the smooth progress of the slewing bearing machining.
[0004] However, the positioning structure in the existing technology is relatively complex and inconvenient to operate, resulting in low positioning efficiency. It also has poor versatility for slewing bearings of different specifications, requiring the design of different tooling for different specifications of slewing bearings, which increases production costs and makes it inconvenient to use slewing bearings of different sizes. Utility Model Content
[0005] The purpose of this invention is to provide a slewing bearing machining fixture that is easy to position, solving the problems of complex positioning structures, inconvenient operation, and inconvenience for the use of slewing bearings of different sizes in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A slewing bearing machining fixture for easy positioning includes a machining table with three positioning grooves on its surface. Positioning blocks are slidably connected inside the positioning grooves, and rollers are rotatably connected to the bottom of the positioning blocks. The positioning blocks and positioning grooves are elastically connected by compression springs. Anti-tilting rods are fixedly connected inside the positioning grooves and pass through the interior of the positioning blocks. A positioning mechanism is provided inside the positioning grooves. A fine-tuning rod is provided on the surface of the positioning blocks through an adjustment mechanism, and a limiting block is fixedly connected to the surface of the fine-tuning rod.
[0008] Preferably, the positioning mechanism includes several rotating slots formed on one side of the positioning groove, and several spacing rods are rotatably connected inside the rotating slots.
[0009] Preferably, one end of the positioning block is fixedly connected to an extension block, and gripping grooves are provided on both sides of the rotating groove.
[0010] Preferably, the adjustment mechanism includes a screw threaded to the surface of the positioning block, with one end of the screw rotatably connected to one end of the fine-tuning rod.
[0011] Preferably, an anti-rotation rod is fixedly connected to the surface of the limiting block, and the anti-rotation rod passes through the surface of the positioning block.
[0012] Preferably, the surface of the positioning block is rotatably connected to an L-shaped anti-movement rod, and three anti-movement blocks are fixedly connected to the top of the processing table, with the anti-movement blocks fitting against the inner side of the adjacent anti-movement rods.
[0013] This utility model has the following beneficial effects:
[0014] When positioning a slewing bearing, first place the slewing bearing in the required position, then release the positioning block so that the limiting block fits against the slewing bearing. Then, use the screw and the spacing rod to determine the positioning position. After that, you can directly position a new slewing bearing of the same size. When you need to position a slewing bearing of different sizes, you only need to adjust the screw and the spacing rod again, so that slewing bearings of different sizes can be easily positioned. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a side view of the present invention;
[0017] Figure 2 for Figure 1 Side view of the central positioning groove;
[0018] Figure 3 for Figure 2 A side view;
[0019] Figure 4 for Figure 3 A side view;
[0020] Figure 5 for Figure 2 Side view of the positioning block.
[0021] In the diagram: 1. Processing table; 2. Positioning groove; 3. Positioning block; 4. Compression spring; 5. Anti-tilting rod; 6. Positioning mechanism; 7. Adjustment mechanism; 8. Fine-tuning rod; 9. Limiting block; 10. Anti-movement rod; 11. Anti-movement block; 12. Roller; 601. Rotation groove; 602. Spacing rod; 603. Extension block; 604. Gripping groove; 701. Screw; 702. Anti-rotation rod. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] Reference Figure 1-5A slewing bearing machining fixture for easy positioning includes a machining table 1. When machining the slewing bearing, it needs to be placed on the machining table 1. The surface of the machining table 1 has three positioning grooves 2, which are arranged in a triangle to facilitate positioning of the slewing bearing from different angles, making the positioning of the slewing bearing more accurate. Positioning blocks 3 are slidably connected inside the positioning grooves 2. The movement of the positioning blocks 3 can position the slewing bearing. The bottom of the positioning blocks 3 is rotatably connected to rollers 12. When the positioning blocks need to be moved... At position 3, the positioning block 3 can be easily moved inside the positioning groove 2 via the roller 12. The positioning block 3 and the positioning groove 2 are elastically connected by a compression spring 4. Before positioning is required, the positioning block 3 needs to be moved away from the center of the processing table 1. After the slewing bearing is placed, the restriction on the positioning block 3 is released, and the positioning block 3 can move by the elastic force of the compression spring 4, thereby quickly approaching the slewing bearing to position it. An anti-tilting rod 5 is fixedly connected inside the positioning groove 2. The anti-tilting rod 5 passes through the inside of the positioning block 3 and acts as a guide for the positioning block 3. The positioning block 3 is prone to tilting during movement due to the restrictive structure. The anti-tilting rod 5 is designed to prevent the positioning block 3 from tilting, ensuring that it moves in one direction without misalignment or tilting. The positioning groove 2 has a positioning mechanism 6 inside, which is a structure that facilitates the restriction of the positioning block 3. It determines the position of the positioning block 3 when it is ejected by the compression spring 4, thus facilitating the positioning of slewing bearings of different sizes. By using three directions, the position of slewing bearings of different sizes can be framed, ensuring that the slewing bearing is not misaligned. The surface of the positioning block 3 is equipped with a fine-tuning rod 8 through the adjustment mechanism 7. The fine-tuning rod 8 is adjusted by the adjustment mechanism 7 when positioning slewing bearings of different sizes, ensuring that the position of the slewing bearing is determined and facilitating the positioning of the slewing bearing. A limiting block 9 is fixedly connected to the surface of the fine-tuning rod 8. After the positioning block 3 moves, it can drive the limiting block 9 on the fine-tuning rod 8 to move together, so that the limiting block 9 can contact the slewing bearing. The contact of the three limiting blocks 9 can determine the position of the slewing bearing, facilitating the positioning of the slewing bearing.
[0024] Furthermore, the positioning mechanism 6 includes several rotating grooves 601 formed on one side of the positioning groove 2. Several spacing rods 602 are rotatably connected inside the rotating grooves 601. When positioning slewing bearings of different sizes is required, it is necessary to adjust according to the diameter of the slewing bearing and rotate the spacing rods 602 of the corresponding diameter so that the spacing rods 602 enter the interior of the positioning groove 2. Then, when the positioning block 3 moves, it will be blocked by the spacing rods 602 located inside the positioning groove 2, so that the slewing bearing can be pushed to the positioning position by the limiting block 9. With the cooperation of the three positioning blocks 3, the slewing bearing can be stably positioned.
[0025] Furthermore, one end of the positioning block 3 is fixedly connected to an extension block 603, and both sides of the rotating groove 601 are provided with gripping grooves 604. When it is necessary to adjust the spacing rod 602, the spacing rod 602 inside the rotating groove 601 can be easily gripped out through the gripping grooves 604, and then the spacing rod 602 can be rotated for convenient use. The extension block 603 at one end of the positioning block 3 can block the spacing rod 602 located inside the positioning groove 2 during use, so that the spacing rod 602 cannot be dislodged from the positioning groove 2 during use, ensuring that the spacing rod 602 can function normally and will not cause positioning failure.
[0026] Furthermore, the adjustment mechanism 7 includes a screw 701 threadedly connected to the surface of the positioning block 3. One end of the screw 701 is rotatably connected to one end of the fine-tuning rod 8. When adjusting the positioning position of the slewing bearing by means of the spacing rod 602, the screw 701 can be rotated after the spacing rod 602 is adjusted. The screw 701 drives the fine-tuning rod 8 to move, thereby causing the limiting block 9 on the fine-tuning rod 8 to move as well. This changes the distance between the limiting block 9 and the positioning block 3, making the positioning of the slewing bearing more accurate.
[0027] Furthermore, an anti-rotation rod 702 is fixedly connected to the surface of the limiting block 9. The anti-rotation rod 702 passes through the surface of the positioning block 3. When the position of the limiting block 9 is adjusted by the screw 701, the screw 701 can prevent rotation by the anti-rotation rod 702. During this process, the screw 701 rotates with the fine-tuning rod 8, so that the limiting block 9 can move and adjust without rotating, so that the limiting block 9 can better limit the slewing bearing.
[0028] Furthermore, an L-shaped anti-movement rod 10 is rotatably connected to the surface of the positioning block 3, and three anti-movement blocks 11 are fixedly connected to the top of the processing table 1. The anti-movement blocks 11 are in contact with the inner side of the adjacent anti-movement rods 10. When it is necessary to position the slewing bearing, the anti-movement rods 10 need to be rotated first, and then the anti-movement rods 10 are pulled to move the positioning block 3 together, so that the anti-movement rods 10 are locked inside the anti-movement blocks 11 to prevent the positioning blocks 3 from interfering with the placement of the slewing bearing. After the slewing bearing is placed, the anti-movement rods 10 are rotated. After the positioning blocks 3 are no longer restricted, they are moved to position the slewing bearing.
[0029] In summary:
[0030] When machining the slewing bearing, the slewing bearing must first be placed on the machining table 1. Then, the three positioning blocks 3 are moved so that the limiting blocks 9 on the positioning blocks 3 are in contact with the slewing bearing. Next, the position of the fine-tuning rod 8 is adjusted by rotating the screw 701, thereby adjusting the position of the limiting blocks 9. During the adjustment process, the anti-rotation rod 702 prevents the limiting blocks 9 from rotating and affecting the clamping of the slewing bearing. After adjusting the fine-tuning rod 8, the corresponding spacing rod 602 can be determined. Then, the anti-rotation rod 10 is pulled to move the positioning blocks 3 away from the slewing bearing. Finally, the anti-rotation rod 10 is lowered so that it engages with the anti-rotation block 11. Then, the corresponding spacing rod 602 inside the rotation groove 601 is rotated into the positioning groove 2 by the gripping groove 604. This process is repeated for all three positioning blocks 3. When machining the slewing bearing later, the slewing bearing is first placed on the machining table 1, and then the anti-rotation rod 10 is directly rotated. The anti-rotation rod 10 engages with the positioning blocks 11. After the anti-movement block 11 disengages, the positioning block 3 can move by the elastic force of the compression spring 4. During the movement, the roller 12 reduces the friction between the positioning block 3 and the positioning groove 2. The anti-tilt rod 5 ensures that the movement of the positioning block 3 will not be tilted, thus ensuring the stability of the positioning block 3. When the positioning block 3 moves to be blocked by the spacing rod 602, the extension block 603 can block the spacing rod 602, and the limiting block 9 will restrict the slewing bearing. When all three positioning blocks 3 do this, the position of the slewing bearing can be determined by the triangle, ensuring the positioning effect of the slewing bearing. With the above structure, when the slewing bearing needs to be processed, the slewing bearing can be easily positioned by the triangular compression of the three positioning blocks 3. When the slewing bearing of different sizes needs to be processed, the positioning blocks 3 can also be easily readjusted, making it convenient to position the slewing bearing of different sizes and improving the positioning efficiency.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A slewing bearing machining fixture for easy positioning, comprising a machining table (1), characterized in that, The surface of the processing table (1) is provided with three positioning grooves (2). A positioning block (3) is slidably connected inside the positioning groove (2). A roller (12) is rotatably connected to the bottom of the positioning block (3). The positioning block (3) and the positioning groove (2) are elastically connected by a compression spring (4). An anti-tilting rod (5) is fixedly connected inside the positioning groove (2). The anti-tilting rod (5) passes through the inside of the positioning block (3). A positioning mechanism (6) is provided inside the positioning groove (2). A fine-tuning rod (8) is provided on the surface of the positioning block (3) through an adjustment mechanism (7). A limiting block (9) is fixedly connected to the surface of the fine-tuning rod (8).
2. The slewing bearing machining fixture for easy positioning according to claim 1, characterized in that, The positioning mechanism (6) includes a plurality of rotating grooves (601) opened on one side of the positioning groove (2), and a plurality of spacing rods (602) are rotatably connected inside the rotating grooves (601).
3. The slewing bearing machining fixture for easy positioning according to claim 2, characterized in that, One end of the positioning block (3) is fixedly connected to an extension block (603), and gripping grooves (604) are provided on both sides of the rotating groove (601).
4. The slewing bearing machining fixture for easy positioning according to claim 1, characterized in that, The adjustment mechanism (7) includes a screw (701) threaded to the surface of the positioning block (3), one end of the screw (701) being rotatably connected to one end of the fine-tuning rod (8).
5. A slewing bearing machining fixture for easy positioning according to claim 4, characterized in that, An anti-rotation rod (702) is fixedly connected to the surface of the limiting block (9), and the anti-rotation rod (702) passes through the surface of the positioning block (3).
6. The slewing bearing machining fixture for easy positioning according to claim 1, characterized in that, The surface of the positioning block (3) is rotatably connected to an L-shaped anti-movement rod (10), and the top of the processing table (1) is fixedly connected to three anti-movement blocks (11), with the anti-movement blocks (11) fitting against the inner side of the adjacent anti-movement rod (10).