Rotary clamping device of numerical control machining center

Abstract

The utility model provides a numerical control machining center rotary clamping device which comprises a workbench, a sliding groove is formed in the workbench, clamping blocks are symmetrically and movably arranged in the sliding groove, a movable connecting rod is rotationally arranged on one side of each clamping block, arc-shaped connecting rods are rotationally connected to one side of each movable connecting rod, and the arc-shaped connecting rods on the two sides are rotationally connected through a hydraulic rod. The hydraulic rods are arranged to drive the arc-shaped connecting rods to rotate, so that the movable connecting rods are driven to move the clamping blocks, the automatic clamping function is achieved, the guide rods, the movable sleeves, the connecting rods and the like are arranged, linkage between the connecting rods can be more stable, and the clamping effect is more stable; a rotating motor is arranged to drive a rotating gear to rotate, so that a rotating ring rotates, rotation of the workbench is achieved, a workpiece on the workbench is machined at different angles, the usability of the device is improved, the workpiece can be always supported and fixed by the workbench by driving the workbench to rotate, and the clamping effect is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a rotary clamping device for a numerical control machining center. Background Art

[0002] CNC machining is a process for machining parts on CNC machine tools. This method uses digital information to control the displacement of parts and tools. It is an effective way to solve problems such as a wide variety of parts, small batches, complex shapes, and high precision, and to achieve efficient and automated processing. CNC machining is widely used in the manufacturing process of large integral structural parts such as aircraft parts, such as integral wing panels, wing beams, and reinforcement frames. These parts usually need to be processed on modern CNC milling machines with multiple high-speed milling heads. In the CNC machining process, the clamping mechanism plays a vital role. The clamping mechanism is mainly used to clamp parts, objects, and other parts that need to be processed to achieve the effects of fixing or limiting. In response to these problems, a new type of rotary clamping device for CNC machining centers came into being, aiming to improve machining efficiency and meet diverse machining needs.

[0003] The publication number "CN217254466U" provides a CNC rotary clamping device for a machining center, comprising a base plate, the base plate is equipped with a mounting block, the mounting block is equipped with a shaft rod, the mounting block is equipped with a second motor, the shaft rod is assembled with the second motor, the shaft rod is equipped with a connecting plate, the connecting plate is equipped with a mounting plate, the mounting plate is equipped with a movable rod, the movable rod is equipped with a clamping block, the movable rod is equipped with a fixed plate, the movable rod is equipped with a telescopic spring, the fixed plate is equipped with a first tooth plate and a second tooth plate, the shaft rod is equipped with an assembly plate, the assembly plate is equipped with an operating plate, the operating plate is equipped with a rotating rod, the rotating rod is equipped with an operating gear and a transmission gear, the operating plate is equipped with a first motor, and the transmission gear is wrapped with a chain. The above-mentioned CNC rotary clamping device for a machining center solves the problems of poor versatility of the existing workpiece clamping device on the machining center through the cooperation of the first tooth plate and the second tooth plate, and different clamps need to be replaced, which has high labor intensity and low work efficiency.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] During use of the above device, although the problem of poor versatility in clamping workpieces can be solved by the cooperation of the tooth plate, when the workpiece is clamped and rotated, the workpiece is only clamped by the clamping block, which can easily cause unstable clamping and lead to problems such as loose clamping, thereby affecting the processing efficiency and processing progress. Utility Model Content

[0006] The purpose of the utility model is to provide a rotary clamping device for a numerical control machining center to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A rotary clamping device for a numerical control machining center comprises a workbench, a sliding groove is provided on the workbench, a clamping block is symmetrically and movably arranged in the sliding groove, a moving connecting rod is rotatably provided on one side of the clamping block, a curved connecting rod is rotatably connected to one side of the moving connecting rod, the curved connecting rods on both sides are rotatably connected by a hydraulic rod, a mounting groove is provided in the workbench, and the curved connecting rod is arranged in the mounting groove;

[0009] A stabilizing component, which is disposed in the mounting groove and is used to stabilize the clamping of the clamping block;

[0010] A rotating assembly is arranged at the bottom of the workbench and is used to rotate the workbench.

[0011] Preferably, the stabilizing assembly includes fixed hinges fixedly arranged on both sides of the workbench, the fixed hinges are rotatably connected to the arc-shaped connecting rod, a connecting rod is fixedly arranged on one side of the arc-shaped connecting rod, a fixed block is fixedly arranged on the top of the inner wall of the mounting groove, a guide rod is fixedly arranged on the bottom of the fixed block, a movable sleeve is movably sleeved on the guide rod, connecting hinges are fixedly arranged on both sides of the movable sleeve, and the connecting hinge and the connecting rod are rotatably connected via the connecting rod.

[0012] Preferably, the rotating assembly includes a plurality of rotating rings equidistantly fixed on the workbench, the rotating rings are fixedly connected to two adjacent surfaces of the workbench, a rotating tooth plate is fixedly provided on the rotating ring, a rotating base is provided at the bottom of the workbench, a rotating motor is fixedly provided on the rotating base, a rotating rod is fixedly provided on one side of the rotating motor, one side of the rotating rod is rotatably provided on the rotating base, rotating gears are fixedly provided on the rotating rod at equal distances, and the rotating gears and the rotating tooth plate are meshed with each other.

[0013] Preferably, support rods are symmetrically rotatably arranged on both sides of the rotating base, support gears are equidistantly fixedly arranged on the support rods, limit blocks are fixedly arranged on both sides of the support gears, and the support gears are meshed with the rotating gear plate.

[0014] Preferably, a limiting ring is fixedly provided on the bottom of the guide rod.

[0015] Preferably, the rotating base is made of wear-resistant material.

[0016] Preferably, the surface of the clamping block is fixedly provided with anti-slip grooves.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can drive the arc-shaped connecting rod to rotate by setting a hydraulic rod, thereby driving the movable connecting rod to move the clamping block, thereby realizing the function of automatic clamping. At the same time, by setting the guide rod, the movable sleeve, the connecting rod and the connecting rod, the linkage between the connecting rods can be more stable, thereby making the clamping effect of the clamping block more stable.

[0019] 2. The utility model realizes the rotation of the workbench by setting a rotating motor to drive the rotating gear to rotate, thereby rotating the rotating ring meshing with the rotating gear, and can perform processing operations at different angles on the workpiece on the workbench, thereby improving the usability of the device. Moreover, driving the workbench to rotate can make the workpiece always supported and fixed by the workbench, making the clamping effect more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the workbench structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the stabilizing component structure of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of the rotating assembly structure of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the rotating component of the utility model from the bottom perspective.

[0025] In the figure: 1. workbench; 2. sliding groove; 3. clamping block; 4. moving connecting rod; 5. arc connecting rod; 6. hydraulic rod; 7. mounting groove; 8. fixed hinge; 9. connecting rod; 10. fixed block; 11. guide rod; 12. moving sleeve; 13. connecting hinge; 14. connecting rod; 15. rotating ring; 16. rotating gear plate; 17. rotating base; 18. rotating motor; 19. rotating rod; 20. rotating gear; 21. support rod; 22. support gear; 23. limit block; 24. limit ring; 25. anti-slip pattern. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5, the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A rotary clamping device for a numerical control machining center comprises a workbench 1, a sliding groove 2 is provided on the workbench 1, a clamping block 3 is symmetrically and movably arranged in the sliding groove 2, an anti-slip pattern 25 is fixedly arranged on the surface of the clamping block 3, a moving connecting rod 4 is rotatably arranged on one side of the clamping block 3, an arc connecting rod 5 is rotatably connected to one side of the moving connecting rod 4, the arc connecting rods 5 on both sides are rotatably connected by a hydraulic rod 6, an installation groove 7 is provided in the workbench 1, and the arc connecting rod 5 is arranged in the installation groove 7;

[0030] In this embodiment, the clamping blocks 3 on both sides can move in the sliding groove 2, and the sliding groove 2 plays a supporting and guiding role for the clamping blocks 3. The anti-slip pattern 25 can increase the friction between the clamping blocks 3 and the workpiece, making the clamping more stable. The hydraulic rod 6 can drive the arc-shaped connecting rods 5 on both sides to rotate by telescoping, so that the arc-shaped connecting rods 5 drive the moving connecting rods 4 to act on the clamping blocks 3, thereby driving the clamping blocks 3 to reciprocate for clamping;

[0031] A stabilizing component, which is arranged in the mounting groove 7 and is used to stabilize the clamping of the clamping block 3;

[0032] The rotating assembly is arranged at the bottom of the workbench 1 and is used to rotate the workbench 1 .

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the stabilizing assembly, which includes fixed hinges 8 fixedly arranged on both sides of the workbench 1, the fixed hinges 8 are rotatably connected to the arc-shaped connecting rod 5, a connecting rod 9 is fixedly arranged on one side of the arc-shaped connecting rod 5, a fixed block 10 is fixedly arranged on the top of the inner wall of the mounting groove 7, a guide rod 11 is fixedly arranged at the bottom of the fixed block 10, a limiting ring 24 is fixedly arranged at the bottom of the guide rod 11, a movable sleeve 12 is movably sleeved on the guide rod 11, and connecting hinges 13 are fixedly arranged on both sides of the movable sleeve 12, and the connecting hinge 13 is rotatably connected to the connecting rod 9 through a connecting rod 14;

[0035] The setting of the fixed hinge 8 in this embodiment can make the arc-shaped connecting rod 5 rotate synchronously, thereby improving the clamping accuracy. The connecting rod 9 is connected to the movable sleeve 12 through the connecting rod 14. When the arc-shaped connecting rod 5 moves, the movable sleeve 12 will be driven to rise and fall on the guide rod 11 through the connecting rod 9, thereby limiting and supporting the arc-shaped connecting rod 5, so that the arc-shaped connecting rod 5 can rotate synchronously, and the clamping blocks 3 on both sides can move synchronously, thereby enhancing the stability of the clamping blocks 3.

[0036] Embodiment three:

[0037] On the basis of Example 1, this example describes one of the implementable structures of the rotating component, which includes a plurality of rotating rings 15 equidistantly fixedly arranged on the workbench 1, the rotating rings 15 are fixedly connected to two adjacent surfaces of the workbench 1, a rotating tooth plate 16 is fixedly arranged on the rotating rings 15, a rotating base 17 is arranged at the bottom of the workbench 1, the rotating base 17 is made of wear-resistant material, a rotating motor 18 is fixedly arranged on the rotating base 17, a rotating rod 19 is fixedly arranged on one side of the rotating motor 18, and one side of the rotating rod 19 is rotatably arranged on the rotating base 17, and rotating gears 20 are fixedly arranged on the rotating rod 19 at equal intervals, and the rotating gear 20 is meshed with the rotating tooth plate 16.

[0038] Support rods 21 are symmetrically arranged on both sides of the rotating base 17, and support gears 22 are fixedly arranged on the support rods 21 at equal distances. Limiting blocks 23 are fixedly arranged on both sides of the support gears 22, and the support gears 22 are meshed with the rotating gear plate 16;

[0039] In this embodiment, the rotating base 17 can rotate on its own, the rotating ring 15 is fixedly connected to two adjacent surfaces of the workbench 1, the rotating motor 18 can drive the rotating gear 20 to rotate, the rotating gear 20 and the rotating gear plate 16 on the rotating ring 15 are meshed with each other, thereby driving the rotating ring 15 to rotate, and the rotation of the rotating ring 15 drives the workbench 1 to rotate, the supporting gear 22 on the support rod 21 can support and fix the rotating ring 15, and the limit block 23 can limit the rotating ring 15 to make the rotating ring 15 more stable when rotating.

[0040] The hydraulic rod 6, the rotating base 17 and the rotating motor 18 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and the specifications and models of the hydraulic rod 6, the rotating base 17 and the rotating motor 18 are well known to those skilled in the art and will not be described in detail here.

[0041] Working principle: When the workpiece needs to be clamped, the operator first places the workpiece on the workbench 1, and then starts the hydraulic rod 6 to extend the hydraulic rod 6, thereby driving the arc connecting rod 5 to rotate, and the arc connecting rod 5 drives the moving connecting rod 4 to act on the clamping block 3, thereby driving the clamping block 3 to move back and forth for clamping. When the arc connecting rod 5 moves, it will drive the moving sleeve 12 to rise and fall on the guide rod 11 through the connecting rod 9, thereby limiting and supporting the arc connecting rod 5, so that the arc connecting rod 5 can rotate synchronously, and the clamping blocks 3 on both sides can move synchronously, thereby enhancing the stability of the clamping block 3;

[0042] When it is necessary to perform multi-angle processing on the workpiece, the rotating base 17 can be controlled to rotate. When it is necessary to flip the workpiece, the rotating motor 18 is turned on. The rotating motor 18 can drive the rotating gear 20 to rotate. The rotating gear 20 is meshed with the rotating tooth plate 16 on the rotating ring 15, thereby driving the rotating ring 15 to rotate. The rotation of the rotating ring 15 drives the workbench 1 to rotate. The supporting gear 22 on the support rod 21 can support and fix the rotating ring 15. The limit block 23 can limit the rotating ring 15 to make the rotating ring 15 more stable when rotating.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary clamping device for a CNC machining center, comprising a worktable (1), characterized in that: The workbench (1) is provided with a sliding groove (2), a clamping block (3) is symmetrically and movably arranged in the sliding groove (2), a movable connecting rod (4) is rotatably arranged on one side of the clamping block (3), a curved connecting rod (5) is rotatably connected to one side of the movable connecting rod (4), and the curved connecting rods (5) on both sides are rotatably connected via a hydraulic rod (6), a mounting groove (7) is provided in the workbench (1), and the curved connecting rod (5) is arranged in the mounting groove (7); A stabilizing component, the stabilizing component being arranged in the mounting groove (7) and being used for stabilizing the clamping of the clamping block (3); A rotating assembly is arranged at the bottom of the workbench (1) and is used to rotate the workbench (1).

2. A rotary clamping device for a CNC machining center according to claim 1, characterized in that: The stabilizing component comprises fixed hinges (8) fixedly arranged on both sides of the workbench (1), the fixed hinges (8) being rotatably connected to the arc-shaped connecting rod (5), a connecting rod (9) being fixedly arranged on one side of the arc-shaped connecting rod (5), a fixed block (10) being fixedly arranged on the top of the inner wall of the mounting groove (7), a guide rod (11) being fixedly arranged on the bottom of the fixed block (10), a movable sleeve (12) being movably sleeved on the guide rod (11), connecting hinges (13) being fixedly arranged on both sides of the movable sleeve (12), and the connecting hinge (13) being rotatably connected to the connecting rod (9) via a connecting rod (14).

3. The rotary clamping device for a CNC machining center according to claim 1, characterized in that: The rotating assembly comprises a plurality of rotating rings (15) fixedly arranged on a workbench (1) at equal intervals, the rotating rings (15) being fixedly connected to two adjacent surfaces of the workbench (1), a rotating tooth plate (16) being fixedly arranged on the rotating rings (15), a rotating base (17) being arranged at the bottom of the workbench (1), a rotating motor (18) being fixedly arranged on the rotating base (17), a rotating rod (19) being fixedly arranged on one side of the rotating motor (18), one side of the rotating rod (19) being rotatably arranged on the rotating base (17), a rotating gear (20) being fixedly arranged on the rotating rod (19) at equal intervals, and the rotating gear (20) and the rotating tooth plate (16) being meshed with each other.

4. A rotary clamping device for a CNC machining center according to claim 3, characterized in that: Support rods (21) are symmetrically rotatably arranged on both sides of the rotating base (17), support gears (22) are fixedly arranged at equal distances on the support rods (21), and limit blocks (23) are fixedly arranged on both sides of the support gear (22), and the support gear (22) is meshed with the rotating gear plate (16).

5. The rotary clamping device for a CNC machining center according to claim 2, characterized in that: A limiting ring (24) is fixedly arranged at the bottom of the guide rod (11).

6. The rotary clamping device for a CNC machining center according to claim 3, characterized in that: The rotating base (17) is made of wear-resistant material.

7. The rotary clamping device for a CNC machining center according to claim 1, characterized in that: The surface of the clamping block (3) is fixedly provided with anti-slip grooves (25).

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