Machining center rotary table capable of adjusting grinding angle

Abstract

The utility model relates to the technical field of machining center rotary tables, in particular to a machining center rotary table capable of adjusting the grinding angle, which comprises an operation table, a clamping block is arranged at the bottom of the operation table, the clamping block is L-shaped, an installation circular ring is arranged on the lower portion of the clamping block, and a groove body matched with the clamping block in shape is formed in the top of the installation circular ring. The rotating assembly is arranged below the operation table, and the rotating assembly is used for driving the operation table; the clamping assembly is arranged on the periphery of the operation table, and the clamping assembly is used for clamping an object to be machined; and the buffer assembly is arranged at the top of the clamping assembly, the buffer assembly is used for reducing impact force during clamping, and the purpose of the utility model is to provide the machining center rotary table capable of adjusting the grinding angle, so that the machining efficiency and the flexibility are improved when multi-angle machining is needed.

Description

Technical Field

[0001] The utility model relates to the technical field of machining center turntables, in particular to a machining center turntable with adjustable grinding angle. Background Art

[0002] With the rapid development of the manufacturing industry, as a high-precision and high-efficiency machining equipment, machining centers have been widely used in the fields of aerospace, automobile manufacturing, mold processing, etc. Among them, as one of the core components of the machining center, the performance of the machining center turntable directly affects the machining accuracy and efficiency of workpieces. The machining center turntable is an important part of the machining center, mainly responsible for the rotation and positioning of workpieces to achieve multi-axis linkage machining. Traditional machining center turntables usually adopt a fixed structure, and the grinding angle cannot be adjusted, which to a certain extent limits the machining ability and flexibility of the machining center.

[0003] In the prior art, the Chinese patent document with the publication number CN218225513U proposed a self-locking mechanism for a four-axis turntable fixture of a machining center. By setting a bottom plate, a clamping mechanism is installed on the top of the bottom plate, chutes are arranged at equal angles on the top of the bottom plate, and a locking mechanism is installed at the bottom of the bottom plate; in this utility model, through the cooperation between the rotating disk, the movable rod and the screw rod, the two clamping rods can be made to move downward and separate from the fixed ring, and then the screw rod can be rotated, and at the same time the spring is stretched. When the spring returns to its original position, the two clamping rods can move upward until their tops are located inside the corresponding positioning holes, and then the rotating disk can be fixed, so as to facilitate the fixing of the screw rod and prevent the rotating disk from rotating due to external touch. However, consistent with the conventional technology, it is necessary to manually twist the operation console, which reduces the machining efficiency and flexibility and has poor practicability. Therefore, this application discloses a machining center turntable with adjustable grinding angle to solve the machining efficiency and flexibility when multi-angle machining is required. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a machining center turntable with adjustable grinding angle to solve the machining efficiency and flexibility when multi-angle machining is required.

[0005] Based on the above purpose, the present utility model provides a machining center turntable with adjustable grinding angle, including: an operation table, a clamping block is installed at the bottom of the operation table, the clamping block is L-shaped, an installation ring is installed at the lower part of the clamping block, a groove matching the shape of the clamping block is opened at the top of the installation ring, and a plurality of telescopic rods are also installed at the bottom of the clamping block. The bottom of the telescopic rod is installed with a base, and a vertical spring is sleeved on the plurality of telescopic rods. The top of the vertical spring abuts against the bottom of the installation ring, and the bottom of the vertical spring abuts against the base;

[0006] A rotating component, which is arranged below the operating table and is used to drive the operating table;

[0007] A clamping component, which is arranged on the periphery of the operating table and is used to clamp the object to be processed;

[0008] A buffer component, which is arranged on the top of the clamping component and is used to reduce the impact force during clamping.

[0009] Preferably, the rotating component includes a spline shaft. A servo motor is installed at the bottom of the spline shaft through the base. A spline sleeve is slidably installed above the spline shaft. A circular groove is also provided at the top of the spline sleeve. A mounting rod is sleeved in the top circular groove of the spline sleeve. The top of the spline sleeve is snap-fitted and rotatably connected to the center of the bottom of the operating table, and the spline sleeve can slide up and down on the spline shaft.

[0010] Preferably, a speed-changing gear is also rotatably installed at the other end of the mounting rod. A toothed ring is also installed at the position corresponding to the speed-changing gear on the spline sleeve. And a tooth groove is also provided at the position corresponding to the diameter size of the speed-changing gear at the bottom of the operating table.

[0011] Preferably, the clamping component includes a mounting seat. The bottom of the mounting seat is installed on the base. A through rectangular groove is provided at the top of the mounting seat. A circular groove is provided on the inner wall of the groove, and a rotating rod is rotatably installed in the circular groove.

[0012] Preferably, a connecting rod is sleeved on the rotating rod. The connecting rod is L-shaped. The lower end of the connecting rod is Y-shaped. A lifting wheel is rotatably installed on the inner wall of the lower end of the connecting rod. The lifting wheel abuts against the bottom of the mounting ring. And a spring receiving block is also installed on the inner wall of the mounting seat. A spring is installed on the upper part of the spring receiving block. The other end of the spring is installed on the lower part of the connecting rod.

[0013] Preferably, the buffer component includes two groups of guide rods. The two groups of guide rods are slidably inserted into the top of the connecting rod. A force-bearing spring is also installed between the two groups of guide rods. One end of the force-bearing spring is installed on the side wall of the connecting rod. The other end of the force-bearing spring is provided with a mounting plate. The other ends of the two groups of guide rods are also installed on the side wall of the mounting plate.

[0014] Preferably, both ends of the mounting plate are Y-shaped. Fixed rods are rotatably installed on the inner walls of the Ys. Sliding wheels are rotatably installed on the fixed rods.

[0015] Advantages of the present utility model: The provision of the rotating assembly enables the operating table to rotate freely by 360 degrees, facilitating grinding operations at different angles, greatly improving the processing efficiency and flexibility. The precise control of the rotating assembly can also ensure the positioning accuracy of the workpiece during rotation, reduce errors, and enhance the processing quality. The design of the clamping assembly combined with the buffer assembly not only ensures the stable clamping of the workpiece during processing but also effectively reduces the impact force on the workpiece during clamping through the buffering effect, avoiding workpiece damage or deformation and improving the processing success rate and workpiece integrity. Due to the flexibility and adjustability of the structure of the present utility model, it can adapt to the processing requirements of workpieces of various shapes, sizes, and materials, improving the versatility and application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 Schematic three-dimensional structure diagram of a partial structure cross-section of the present utility model;

[0019] Figure 3 Schematic diagram of a partial structure of the present utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structure diagram of part A in;

[0021] Figure 5 Enlarged structure diagram of the clamping assembly of the present utility model;

[0022] Figure 6 For the present utility model Figure 5 Enlarged structure diagram of part B in.

[0023] The markings in the figure are:

[0024] 1. Operating table; 2. Clamping block; 3. Installation ring; 4. Telescopic rod; 5. Vertical spring; 6. Base; 7. Tooth groove; 8. Variable-speed tooth; 9. Installation rod; 10. Spline shaft; 11. Spline sleeve; 12. Tooth ring; 13. Installation seat; 14. Spring force-receiving block; 15. Spring; 16. Connecting rod; 17. Supporting wheel; 18. Rotating rod; 19. Guide rod; 20. Installation plate; 21. Sliding wheel; 22. Fixed rod; 23. Stress spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in combination with specific embodiments.

[0026] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with general skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] The present utility model provides a machining center turntable with adjustable grinding angle as shown in Figures 1 to 6 Figure [not provided], which includes: an operating table 1, a clamping block 2 is installed at the bottom of the operating table 1, the clamping block 2 is L-shaped, an installation ring 3 is installed at the lower part of the clamping block 2, a groove body conforming to the shape of the clamping block 2 is opened at the top of the installation ring 3, and a plurality of telescopic rods 4 are also installed at the bottom of the clamping block 2. A base 6 is installed at the bottom of the telescopic rods 4, and a vertical spring 5 is sleeved on the plurality of telescopic rods 4. The top of the vertical spring 5 abuts against the bottom of the installation ring 3, and the bottom of the vertical spring 5 abuts against the base 6; a rotating assembly, the rotating assembly is arranged below the operating table 1, and the rotating assembly is used to drive the operating table 1; a clamping assembly, the clamping assembly is arranged on the periphery of the operating table 1, and the clamping assembly is used to clamp the workpiece to be processed; a buffer assembly, the buffer assembly is arranged on the top of the clamping assembly, and the buffer assembly is used to reduce the impact force during clamping. The setting of the rotating assembly enables the operating table 1 to rotate freely 360 degrees, facilitating grinding processing at different angles, greatly improving the processing efficiency and flexibility. The precise control of the rotating assembly can also ensure the positioning accuracy of the workpiece during rotation, reduce errors, and improve the processing quality. The design of the clamping assembly combined with the buffer assembly not only ensures the stable clamping of the workpiece during processing, but also effectively reduces the impact force on the workpiece during clamping through the buffering effect, avoiding workpiece damage or deformation, and improving the success rate of processing and the integrity of the workpiece. Due to the flexibility and adjustability of the structure of the present utility model, it can adapt to the processing requirements of workpieces of various shapes, sizes and materials, improving the versatility and application range of the equipment.

[0028] Furthermore, in this example, as shown inFigure 2 , Figure 3 and Figure 4 As shown in Figure 2 , Figure 3 and Figure 4 , the rotating assembly includes a spline shaft 10. A servo motor is installed through the bottom of the spline shaft 10 and penetrates the base 6. A spline sleeve 11 is slidably installed above the spline shaft 10. A circular chute is also opened at the top of the spline sleeve 11. A mounting rod 9 is sleeved in the chute at the top of the spline sleeve 11. The top of the spline sleeve 11 is snap-fitted and rotatably connected to the center of the bottom of the operating table 1. The spline sleeve 11 can slide up and down on the spline shaft 10. The other end of the mounting rod 9 is also rotatably installed with a variable-speed gear 8. An expansion link is also installed below the variable-speed gear 8. The variable-speed gear 8 is rotatably connected to the expansion link. The bottom of the expansion link is installed on the base 6, and the top of the expansion link is installed at the bottom of the variable-speed gear 8. A toothed ring 12 is also installed at the position corresponding to the variable-speed gear 8 on the spline sleeve 11. A tooth groove 7 is also provided at the position corresponding to the diameter size of the variable-speed gear 8 at the bottom of the operating table 1. The toothed ring 12 meshes with the variable-speed gear 8, and the variable-speed gear 8 meshes with the tooth groove 7. The servo motor, as the main power source of the rotating assembly, is installed below the base 6 and is connected to the spline shaft 10 through its output shaft. When the servo motor is started, its power is transmitted to the spline shaft 10 through the output shaft, driving the spline shaft 10 to rotate. The spline shaft 10 and the spline sleeve 11 are connected by splines. This connection method can not only transmit rotational motion but also allow a certain amount of axial sliding. Therefore, when the spline shaft 10 rotates driven by the servo motor, the spline sleeve 11 will also rotate accordingly, and the spline shaft 10 can slide up and down inside the spline sleeve 11. One end of the mounting rod 9 is slidably sleeved in the chute at the top of the spline sleeve 11, and the other end is rotatably installed with a variable-speed gear 8. The variable-speed gear 8 meshes with the toothed ring 12, and the toothed ring 12 is fixed on the spline sleeve 11 and rotates synchronously with the spline sleeve 11. When the spline sleeve 11 rotates, the toothed ring 12 will also rotate with the spline sleeve 11. The variable-speed gear 8 is driven to rotate by the toothed ring 12 through meshing. However, since the variable-speed gear 8 can rotate on the mounting rod 9 and the variable-speed gear 8 is installed on the base 6 through the expansion link, the variable-speed gear 8 will not change its position while being driven to rotate by the toothed ring 12 due to the action of the expansion link. Thus, the variable-speed gear 8 drives the rotation of the tooth groove 7. Therefore, a transmission with different speed ratios can be achieved. At the same time, a tooth groove 7 corresponding to the position of the diameter size of the variable-speed gear 8 is provided at the bottom of the operating table 1. Under the continuous drive of the servo motor, the spline sleeve 11 drives the variable-speed gear 8 and the toothed ring 12 to rotate, thereby driving the operating table 1 to rotate around the center of its bottom. By adjusting the speed and direction of the servo motor, the rotation speed and direction of the operating table 1 can be controlled.

[0029] Further, in this example, as Figure 5As shown, the clamping assembly includes a mounting seat 13, the bottom of the mounting seat 13 is mounted on the base 6, the top of the mounting seat 13 is provided with a through rectangular groove, the inner wall of the groove is provided with a circular groove, a rotating rod 18 is rotatably installed in the circular groove, and a connecting rod 16 is sleeved on the rotating rod 18, the connecting rod 16 is L-shaped, and the lower end of the connecting rod 16 is Y-shaped, and a lifting wheel is rotatably installed on the inner wall of the lower end of the connecting rod 16, and the lifting wheel 17 abuts against the bottom of the mounting ring 3, and a spring force block 14 is also installed on the inner wall of the mounting seat 13, and a spring 15 is installed on the upper part of the spring force block 14, and the other end of the spring 15 is installed at the lower part of the connecting rod 16. In the initial state, the connecting rod 16 is designed to be L-shaped, so that the lifting wheel 17 naturally droops and abuts against the bottom of the mounting ring 3. At this time, the spring 15 is in a released state, one end of which is connected to the spring force block 14, and the other end is connected to the lower part of the connecting rod 16, The parts provide a certain pre-tightening force. When it is necessary to clamp the workpiece, first place the workpiece on the operating table 1. As the workpiece is placed, the weight of the workpiece will act on the lifting wheel 17, and the operating table 1 will drop and drive the mounting ring 3 to drop. At this time, the connecting rod 16 will rotate around the axis of the rotating rod 18, so that the top of the connecting rod 16 will shrink inward, thereby increasing the clamping force on the workpiece. Due to the presence of the spring 15, the clamping assembly can adapt to workpieces of different weights and sizes to ensure that the workpiece is always firmly clamped during the processing. In addition, the elasticity of the spring 15 can also absorb the vibration and impact generated during the processing to a certain extent, protecting the workpiece and processing equipment. When the processing is completed and the workpiece needs to be removed, just lift the workpiece gently to make it detach from the clamping operating table 1. As the workpiece is removed, the elastic force of the spring 15 will push the connecting rod 16 and the lifting wheel 17 back to the initial position to prepare for the next clamping operation.

[0030] Furthermore, in this example, Figure 6As shown in the figure, the buffer assembly includes two groups of guide rods 19. The two groups of guide rods 19 are slidably inserted into the top of the connecting rod 16. Holes with the same size as the guide rods 19 are opened on both sides of the top of the connecting rod 16. A force-bearing spring 23 is also installed between the two groups of guide rods 19. One end of the force-bearing spring 23 is installed on the side wall of the connecting rod 16, and the other end of the force-bearing spring 23 is installed with a mounting plate 20. The other ends of the two groups of guide rods 19 are also installed on the side wall of the mounting plate 20. Both ends of the mounting plate 20 are Y-shaped. Fixed rods 22 are rotatably installed on the inner walls of both ends of the mounting plate 20, and sliding wheels 21 are rotatably installed on the fixed rods 22. In the initial state, the two groups of guide rods 19 are firmly inserted into the top of the connecting rod 16. The force-bearing spring 23 is in a certain compressed state. One end of it is fixed on the side wall of the connecting rod 16, and the other end is connected to the mounting plate 20. Both ends of the mounting plate 20 are designed to be Y-shaped. The fixed rods 22 and the sliding wheels 21 rotatably installed on the inner walls of the Y-shape are in a free state, ready to hold the workpiece. When the workpiece is placed on the operating table 1, the sliding wheels 21 first come into contact with the surface of the workpiece. Due to the design of the sliding wheels 21, they can smoothly roll on the surface of the workpiece, reducing friction and resistance. As the workpiece is further clamped, the lifting wheels 17 and the connecting rod 16 will receive a downward pressure from the workpiece. This pressure is transmitted through the connecting rod 16 to the guide rods 19 and the force-bearing spring 23. The force-bearing spring 23, as a buffer element, will absorb and disperse this part of the pressure, reducing the impact force directly acting on the workpiece. At the same time, as the force-bearing spring 23 is compressed, the mounting plate 20 moves towards the connecting rod 16, and the fixed rods 22 and the sliding wheels 21 also adjust their positions accordingly to adapt to the shape of the workpiece and the clamping requirements. Due to the elastic effect of the force-bearing spring 23, the buffer assembly can make adaptive adjustments according to workpieces of different weights and sizes. A heavier workpiece will cause a greater compression of the force-bearing spring 23, thereby increasing the buffering effect, while a lighter workpiece will keep the force-bearing spring 23 in a smaller compressed state. This adaptive adjustment ensures the stability of the clamping process and the safety of the workpiece. During the processing of the workpiece, the buffer assembly continuously provides stable support and buffering. When the processing is completed and the workpiece is removed, the buffer assembly will release the elastic potential energy accumulated before, helping the workpiece to smoothly leave the clamping area.

[0031] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0032] The present utility model aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A machining center turntable with adjustable grinding angle, characterized in that: include: An operating table (1), wherein a card block (2) is installed at the bottom of the operating table (1), the card block (2) is L-shaped, a mounting ring (3) is installed at the bottom of the card block (2), a groove body matching the shape of the card block (2) is opened at the top of the mounting ring (3), and a plurality of groups of telescopic rods (4) are installed at the bottom of the card block (2), a base (6) is installed at the bottom of the telescopic rods (4), and vertical springs (5) are also sleeved and installed on the plurality of groups of telescopic rods (4), the top of the vertical spring (5) abuts against the bottom of the mounting ring (3), and the bottom of the vertical spring (5) abuts against the base (6); A rotating assembly, the rotating assembly being arranged below the operating table (1) and being used to drive the operating table (1); A clamping assembly, the clamping assembly being arranged at the periphery of the operating table (1), and the clamping assembly being used to clamp an object to be processed; A buffer component is arranged on the top of the clamping component, and the buffer component is used to reduce the impact force during clamping.

2. The machining center turntable with adjustable grinding angle according to claim 1, characterized in that: The rotating assembly comprises a spline shaft (10), the bottom of the spline shaft (10) passes through the base (6) and is equipped with a servo motor, and a spline sleeve (11) is slidably installed above the spline shaft (10), and a circle of sliding grooves is also provided at the top of the spline sleeve (11), a mounting rod (9) is sleeved in the top sliding groove of the spline sleeve (11), and the top of the spline sleeve (11) is engaged and rotatably connected to the bottom center of the operating table (1), and the spline sleeve (11) can slide up and down on the spline shaft (10).

3. The machining center turntable with adjustable grinding angle according to claim 2, characterized in that: The other end of the mounting rod (9) is also rotatably mounted with a speed gear (8), a telescopic rod is also mounted below the speed gear (8), the bottom of the telescopic rod is mounted on the base (6), the top of the telescopic rod is mounted on the bottom of the speed gear (8), a gear ring (12) is also mounted on the spline sleeve (11) at a position corresponding to the speed gear (8), and a tooth groove (7) is also provided at a position corresponding to the diameter size of the speed gear (8) at the bottom of the operating table (1), the gear ring (12) is meshed with the speed gear (8), and the speed gear (8) is meshed with the tooth groove (7).

4. The machining center turntable with adjustable grinding angle according to claim 1, characterized in that: The clamping assembly comprises a mounting seat (13), the bottom of which is mounted on the base (6), the top of which is provided with a through rectangular groove, the inner wall of which is provided with a circular groove, and a rotating rod (18) is rotatably mounted in the circular groove.

5. The machining center turntable with adjustable grinding angle according to claim 4, characterized in that: A connecting rod (16) is sleeved on the rotating rod (18), the connecting rod (16) is L-shaped, the lower end of the connecting rod (16) is Y-shaped, a lifting wheel (17) is rotatably mounted on the inner wall of the lower end of the connecting rod (16), the lifting wheel (17) abuts against the bottom of the mounting ring (3), and a spring force block (14) is also mounted on the inner wall of the mounting seat (13), a spring (15) is mounted on the upper part of the spring force block (14), and the other end of the spring (15) is mounted on the lower part of the connecting rod (16).

6. The machining center turntable with adjustable grinding angle according to claim 1, characterized in that: The buffer assembly comprises two groups of guide rods (19), the two groups of guide rods (19) are slidably inserted on the top of the connecting rod (16), and holes with the same size as the guide rods (19) are opened on both sides of the top of the connecting rod (16). A force spring (23) is also installed between the two groups of guide rods (19), one end of the force spring (23) is installed on the side wall of the connecting rod (16), and the other end of the force spring (23) is installed with a mounting plate (20), and the other ends of the two groups of guide rods (19) are also installed on the side wall of the mounting plate (20).

7. The machining center turntable with adjustable grinding angle according to claim 6, characterized in that: Both ends of the installation piece (20) are provided with a through groove, the inner wall of the groove is rotatably mounted with a fixing rod (22), and the fixing rod (22) is rotatably mounted with a sliding wheel (21).

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