Driving rotating shaft four-shaft clamp

Abstract

The utility model relates to a four-shaft clamp for driving rotating shafts. Comprising a base, a first supporting piece arranged on the base, a second supporting piece arranged on the base, a first supporting plate arranged on the first supporting piece, a second supporting plate arranged on the second supporting piece, a clamping device for clamping a workpiece and a plate body for supporting the clamping device. A motor is arranged in the first supporting piece; the motor drives the first supporting plate to rotate; the second supporting piece can slide along the base and can be fixed to the base through bolts at the same time. The plate body is arranged on the first supporting plate and the second supporting plate; the first supporting plate and the second supporting plate are L-shaped; and two groups of clamping devices are oppositely arranged. The problems that a conventional clamp cannot achieve firm clamping and cannot meet the machining requirement are solved.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to a four-axis clamp with a drive shaft. Background Technology

[0002] In the prior art, a fixture is a device used in the mechanical manufacturing process to fix the workpiece in the correct position for construction or inspection; it is also called a clamp.

[0003] Chinese patent CN102728765B discloses a ring-shaped parts clamping fixture, including a three-jaw wedge-type power chuck seat and a plurality of base jaws located on the three-jaw wedge-type power chuck seat. A jaw hydraulic seat is fixedly connected to the base jaws. A plurality of jaw base holes are evenly arranged on the jaw hydraulic seat with the center of the three-jaw wedge-type power chuck seat as the axis. A jaw piston and a jaw are sequentially arranged in the jaw base holes. Under the action of hydraulic oil in the jaw base holes, the jaw piston pushes the jaw to move radially along the center of the three-jaw wedge-type power chuck seat.

[0004] However, in actual production and processing, in addition to regular-shaped parts such as circles that can be clamped using the aforementioned fixtures or tooling, a large number of irregular-shaped parts need to be processed. When clamping, in addition to considering the position along the XYZ axes, the clamping tilt angle of the part also needs to be considered. As shown in Figure 1, a part includes a head and a shank, with the shank tilted relative to the head. The head has three pre-drilled holes, and a crescent-shaped notch is provided at the edge of the head away from the shank. Using the aforementioned conventional fixtures cannot achieve secure clamping and cannot meet processing requirements. Utility Model Content

[0005] This application provides a four-axis drive shaft clamp, which solves the technical problem that conventional clamps in the prior art cannot achieve firm clamping and cannot meet processing requirements.

[0006] The technical solution adopted in the embodiments of this application is as follows:

[0007] A four-axis drive shaft clamp includes a base, a first support member disposed on the base, a second support member disposed on the base, a first support plate disposed on the first support member, a second support plate disposed on the second support member, a clamping device for clamping a workpiece, and a plate body supporting the clamping device; the first support member has a built-in motor; the motor drives the first support plate to rotate; the second support member can slide along the base and can be fixed to the base by bolts; the plate body is disposed on the first support plate and the second support plate; the first support plate and the second support plate are L-shaped; and two sets of clamping devices are arranged opposite each other.

[0008] As a further improvement to the above technical solution: the clamping device includes a first clamping member, a first limiting member for limiting the position of the workpiece, and a second limiting member for limiting the workpiece; two sets of the first clamping members are arranged opposite each other; a first groove corresponding to the shape of the workpiece is opened on the first limiting member; a locking block is provided at the working end of the second limiting member; a second groove corresponding to the workpiece is opened on the locking block; the first limiting member and the second limiting member are arranged opposite each other; the locking block locks the workpiece into the first groove.

[0009] As a further improvement to the above technical solution: the first clamping member includes a pushing member, a hinge rod hinged to the pushing member, and a clamping rod for clamping the workpiece; the pushing member is disposed on the plate; one end of the hinge rod is hinged to the pushing member, and the other end of the hinge rod is hinged to the clamping rod; one end of the clamping rod is hinged to the actuating end of the pushing member, and the other end of the clamping rod corresponds to the third limiting member.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0011] Because the first support component uses a built-in motor to drive the first support plate to rotate, and the second support component slides along the base and is fixed by bolts, the fixture can be adjusted in multiple degrees of freedom in the horizontal (X / Y axis) and rotational (around Z axis) directions. This allows for precise adaptation to the spatial angle difference between the head and the tilting handle, ensuring that the workpiece processing surface is aligned with the machine spindle axis, thus overcoming the core pain point that traditional fixtures cannot adjust the tilt angle.

[0012] Precise contouring and limiting: The first limiting component has a first groove that matches the contour of the workpiece head. The second limiting component's locking block covers the edge of the crescent-shaped notch through the second groove, forming a three-dimensional contouring constraint. Combined with the flexible hinge drive of the clamping rod, the clamping force is evenly applied to the preset hole and irregular contour area, avoiding deformation or slippage caused by local stress concentration. It is especially suitable for machining parts with complex geometric features (such as asymmetrical notches and inclined structures).

[0013] Dynamic balance of compound clamping force: The pusher (such as a cylinder) drives the clamping rod to move through the hinge rod. The end clamping force is adaptively adjusted according to the curvature of the workpiece surface, forming a compound effect of radial clamping and axial locking. Combined with the rigid support of the third limiting component, it can achieve high stability fixation and avoid hard contact damage to the workpiece surface, thus meeting the needs of high-precision machining scenarios. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of the four-axis clamp for driving the rotating shaft of this utility model;

[0015] Figure 2 is a top view of the four-axis clamp for driving the rotating shaft of this utility model;

[0016] Figure 3 is a magnified view of part A in Figure 1.

[0017] In the diagram: 1. Base; 2. First support member; 21. Motor; 3. Second support member; 4. First support plate; 5. Second support plate; 6. Clamping device; 61. First clamping member; 611. Pushing member; 612. Hinge rod; 613. Clamping rod; 614. Third limiting member; 615. First groove; 62. First limiting member; 63. Second limiting member; 631. Locking block; 632. Second groove; 8. Plate. Detailed Implementation

[0018] This application provides a four-axis drive shaft clamp, which solves the technical problem that conventional clamps in the prior art cannot achieve firm clamping and cannot meet processing requirements.

[0019] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] A four-axis drive shaft clamp includes a base 1, a first support member 2 mounted on the base 1, a second support member 3 mounted on the base 1, a first support plate 4 mounted on the first support member 2, a second support plate 5 mounted on the second support member 3, a clamping device 6 for clamping workpieces, and a plate body 8 supporting the clamping device 6. The first support member 2 has a built-in motor 21; the motor 21 drives the first support plate 4 to rotate; the second support member 3 can slide along the base 1 and can be fixed to the base 1 by bolts; the plate body 8 is mounted on the first support plate 4 and the second support plate 5; the first support plate 4 and the second support plate 5 are L-shaped; two sets of clamping devices 6 are arranged opposite each other.

[0022] The clamping device 6 includes a first clamping member 61, a first limiting member 62 that restricts the position of the workpiece, and a second limiting member 63 that restricts the workpiece. Two sets of first clamping members 61 are arranged opposite each other. The first limiting member 62 has a first groove 615 corresponding to the shape of the workpiece. The working end of the second limiting member 63 is provided with a locking block 631. The locking block 631 has a second groove 632 corresponding to the workpiece. The first limiting member 62 and the second limiting member 63 are arranged opposite each other. The locking block 631 locks the workpiece into the first groove 615.

[0023] The first clamping member 61 includes a pushing member 611, a hinge rod 612 hinged to the pushing member 611, and a clamping rod 613 for clamping the workpiece; the pushing member 611 is disposed on the plate body 8; one end of the hinge rod 612 is hinged to the pushing member 611, and the other end of the hinge rod 612 is hinged to the clamping rod 613; one end of the clamping rod 613 is hinged to the actuating end of the pushing member 611, and the other end of the clamping rod 613 corresponds to the third limiting member 614.

[0024] Because the first support member 2 has a built-in motor 21 that drives the first support plate 4 to rotate, and the second support member 3 slides along the base 1 and is fixed by bolts, the fixture can be adjusted in multiple degrees of freedom in the horizontal (X / Y axis) and rotational (around Z axis) directions. This accurately adapts to the spatial angle difference between the head and the tilting handle, ensuring that the workpiece machining surface is aligned with the spindle axis of the equipment, thus overcoming the core pain point that traditional fixtures cannot adjust the tilt angle. Precise contouring and limiting adaptation: The first limiting member 62 has a first groove 615 that matches the contour of the workpiece head. The locking block 631 of the second limiting member 63 covers the edge of the crescent-shaped notch through the second groove 632, forming a three-dimensional contouring constraint. Combined with the flexible hinge drive of the clamping rod 613, the clamping force is evenly applied to the preset hole and irregular contour area, avoiding deformation or slippage caused by local stress concentration. This is especially suitable for machining parts with complex geometric features (such as asymmetrical notches and tilted structures). Dynamic balance of composite clamping force: The pushing member 611 (such as a cylinder) is connected by the hinge rod 612. The drive clamping rod 613 moves, and the end clamping force is adaptively adjusted according to the curvature of the workpiece surface, forming a combined effect of radial clamping and axial locking. Combined with the rigid support of the third limiting member 614, it achieves high-stability fixation and avoids hard contact damage to the workpiece surface, meeting the needs of high-precision machining scenarios.

[0025] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A drive spindle four-axis chuck, characterized by, The system includes a base (1), a first support member (2) disposed on the base (1), a second support member (3) disposed on the base (1), a first support plate (4) disposed on the first support member (2), a second support plate (5) disposed on the second support member (3), a clamping device (6) for clamping the workpiece, and a plate (8) supporting the clamping device (6); the first support member (2) has a motor (21) built in it; the motor (21) drives the first support plate (4) to rotate; the second support member (3) can slide along the base (1) and can be fixed to the base (1) by bolts; the plate (8) is disposed on the first support plate (4) and the second support plate (5); the first support plate (4) and the second support plate (5) are L-shaped; and two sets of clamping devices (6) are arranged opposite each other.

2. The driven rotating spindle four-axis fixture of claim 1, wherein, The clamping device (6) includes a first clamping member (61), a first limiting member (62) that restricts the position of the workpiece, and a second limiting member (63) that restricts the workpiece; the first clamping member (61) is arranged in two sets opposite to each other; the first limiting member (62) is provided with a first groove (615) corresponding to the shape of the workpiece; the working end of the second limiting member (63) is provided with a locking block (631); the locking block (631) is provided with a second groove (632) corresponding to the workpiece; the first limiting member (62) and the second limiting member (63) are arranged opposite to each other; the locking block (631) locks the workpiece into the first groove (615).

3. The driven rotating spindle four-axis chuck of claim 2, wherein, The first clamping member (61) includes a pusher (611), a hinge rod (612) hinged to the pusher (611), and a clamping rod (613) for clamping the workpiece; the pusher (611) is disposed on the plate (8); one end of the hinge rod (612) is hinged to the pusher (611), and the other end of the hinge rod (612) is hinged to the clamping rod (613); one end of the clamping rod (613) is hinged to the working end of the pusher (611), and the other end of the clamping rod (613) corresponds to the third limiting member (614).

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