Automatic rotating clamping device

Abstract

The present invention discloses an automatic rotating clamping device, comprising: a clamping mechanism, having a three-jaw chuck and a clamping drive mechanism, wherein the three-jaw chuck is connected to the clamping drive mechanism, and the clamping drive mechanism is used to drive the three movable jaws of the three-jaw chuck to approach or withdraw from the center; and a rotating mechanism, connected to the three-jaw chuck, and used to drive the three-jaw chuck to rotate. The present invention can rotate while clamping a workpiece, realize automatic operation during processing, meet the continuous production tasks of large workpiece rotary cutting and other processing applications, and improve processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of processing equipment, and in particular relates to an automatic rotating clamping device. Background Art

[0002] Clamping devices are widely used in many occasions, such as positioning during product processing. The existing clamping devices have complex structures and are rigid clamping devices. When clamping, the outer surface of the product to be clamped is easily damaged. At the same time, most of the existing technologies only separate the clamping process and the rotation process from each other, and can only achieve one function. Either they can only clamp and cannot rotate continuously, or they can only rotate and the clamping function can only be clamped manually. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an automatic rotating clamping device that can rotate while clamping a workpiece, thereby meeting the processing requirements of a large-diameter workpiece and realizing automated operation to improve processing efficiency.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted is as follows:

[0005] An automatic rotating clamping device, comprising:

[0006] A clamping mechanism, comprising a three-jaw chuck and a clamping drive mechanism, wherein the three-jaw chuck is connected to the clamping drive mechanism, and the clamping drive mechanism is used to drive three movable jaws of the three-jaw chuck to approach or withdraw from the center;

[0007] A rotating mechanism is connected to the three-jaw chuck and is used to drive the three-jaw chuck to rotate.

[0008] As a further improvement of the present invention, the three-jaw chuck comprises a disc body and three evenly distributed movable jaws, and the guide parts of the three evenly distributed movable jaws have threads on the bottom and mesh with the threads on the disc body.

[0009] As a further improvement of the present invention, the clamping drive mechanism includes a connecting shaft, a forward ratchet, a reverse ratchet, a first gear and a first motor, a cylinder and a fork, one end of the connecting shaft is fixedly connected to the three-jaw chuck, and the other end is fixedly provided with a forward ratchet and a reverse ratchet, a first gear meshing with the forward ratchet / reverse ratchet is provided on the output shaft of the first motor, a fork is provided at the piston end of the cylinder, and one end of the first gear is located in the opening of the fork.

[0010] The movement of the fork is controlled by the cylinder, and the fork drives the first gear to slide along the output shaft of the second motor to achieve the engagement of the first gear with the forward ratchet and the reverse ratchet respectively. The forward ratchet / reverse ratchet is driven by the first gear to rotate forward / reverse, thereby driving the disk body to rotate forward / reverse. The threads on the disk body simultaneously drive the three movable claws to approach or withdraw from the center to adapt to workpieces of different models and specifications to be cut.

[0011] When the first gear is engaged with the forward ratchet, the second motor drives the first gear to rotate in the clockwise direction, and the forward ratchet engaged with the first gear rotates in the same direction. At this time, the three movable claws of the three-jaw chuck approach the center; when the first gear is engaged with the reverse ratchet, the second motor drives the first gear to rotate in the counterclockwise direction, and the reverse ratchet engaged with the first gear rotates in the same direction. At this time, the three movable claws of the three-jaw chuck withdraw toward the center.

[0012] As a further improvement of the present invention, a mounting plate is provided on the connecting shaft.

[0013] As a further improvement of the present invention, the rotating mechanism includes a second motor and a joint bearing, the joint bearing is rotatably sleeved on the connecting shaft, a second gear is arranged on the output shaft of the second motor, the second gear is meshed with the outer ring of the joint bearing, and a chuck sleeve is provided on the three-jaw chuck, and the chuck sleeve is fixed on the joint bearing.

[0014] The beneficial effects of the present invention are as follows: the present invention can realize the clamping and rotation of a large workpiece, and the three movable jaws of the three-jaw chuck can be moved closer to or withdrawn from the center by rotating the ratchet wheel forward and the ratchet wheel reversely, thereby realizing the clamping or loosening of the large workpiece, and the large workpiece clamped in the three-jaw chuck can be driven to rotate by the rotating mechanism, thereby realizing the rotary cutting of the large workpiece, and under the condition of the same machine tool size, the utilization rate of the cutting blade is increased by 50%. Taking a cutting blade with a diameter of 400mm as an example, the traditional cutting device can cut a workpiece with a diameter of 130mm, while the present invention can meet the cutting of a workpiece with a diameter of 260mm by setting a rotating clamping device. The present invention greatly improves the cutting capacity, and maximizes the working capacity of the equipment while greatly reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the clamping mechanism of the present invention from a second viewing angle. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] like Figure 1-3 As shown, an automatic rotating clamping device comprises:

[0022] A clamping mechanism 1, comprising a three-jaw chuck 11 and a clamping drive mechanism 12, wherein the three-jaw chuck 11 is connected to the clamping drive mechanism 12, and the clamping drive mechanism 12 is used to drive three movable jaws 14 of the three-jaw chuck 11 to approach or withdraw from the center;

[0023] A rotating mechanism 2 is connected to the three-jaw chuck 11 and is used to drive the three-jaw chuck 11 to rotate.

[0024] The three-jaw chuck 11 includes a chuck body 13 and three evenly distributed movable jaws 14 . The three evenly distributed movable jaws 14 have threads on the bottom of the guide parts and mesh with the threads on the chuck body 13 .

[0025] The clamping drive mechanism 12 includes a connecting shaft 15, a forward ratchet 16, a reverse ratchet 17, a first gear 18 and a first motor 19, a cylinder 110 and a fork 111. One end of the connecting shaft 15 is fixedly connected to the three-jaw chuck 11, and the other end is fixedly provided with a forward ratchet 16 and a reverse ratchet 17. The output shaft of the first motor 19 is provided with a first gear 18 meshing with the forward ratchet 16 / reverse ratchet 17. The piston end of the cylinder 110 is provided with a fork 111, and one end of the first gear 18 is located in the opening of the fork 111.

[0026] The movement of the fork 111 is controlled by the cylinder 110, and the fork 111 drives the first gear 18 to slide along the output shaft of the second motor 21 to achieve the engagement of the first gear 18 with the forward ratchet 16 and the reverse ratchet 17 respectively. The forward ratchet 16 / reverse ratchet 17 are driven by the first gear 18 to rotate forward / reverse, thereby driving the disk body 13 to rotate forward / reverse. The threads on the disk body 13 simultaneously drive the three movable claws 14 to approach or withdraw from the center to adapt to workpieces of different models and specifications to be cut.

[0027] When the first gear 18 is engaged with the forward ratchet 16, the second motor 21 drives the first gear 18 to rotate in the clockwise direction, and the forward ratchet 16 engaged with the first gear 18 rotates in the same direction. At this time, the three movable claws 14 of the three-jaw chuck 11 approach the center; when the first gear 18 is engaged with the reverse ratchet 17, the second motor 21 drives the first gear 18 to rotate in the counterclockwise direction, and the reverse ratchet 17 engaged with the first gear 18 rotates in the same direction. At this time, the three movable claws 14 of the three-jaw chuck 11 withdraw toward the center.

[0028] The connecting shaft 15 is provided with a mounting plate.

[0029] The rotating mechanism 2 includes a second motor 21 and a spherical bearing 22. The spherical bearing 22 is rotatably sleeved on the connecting shaft 15. A second gear 23 is provided on the output shaft of the second motor 21. The second gear 23 is meshed with the outer ring of the spherical bearing 22. A chuck sleeve 24 is provided on the three-jaw chuck 11, and the chuck sleeve 24 is fixed on the spherical bearing 22.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, component splitting or combination, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic rotating clamping device, characterized in that: include: A clamping mechanism, comprising a three-jaw chuck and a clamping drive mechanism, wherein the three-jaw chuck is connected to the clamping drive mechanism, and the clamping drive mechanism is used to drive three movable jaws of the three-jaw chuck to approach or withdraw from the center; The three-jaw chuck comprises a chuck body and three evenly distributed movable jaws, wherein the guide parts of the three evenly distributed movable jaws have threads on the bottom thereof and mesh with the threads on the chuck body; The clamping drive mechanism comprises a connecting shaft, a forward ratchet, a reverse ratchet, a first gear and a first motor, a cylinder and a fork, one end of the connecting shaft is fixedly connected to the three-jaw chuck, and the other end is fixedly provided with a forward ratchet and a reverse ratchet, the output shaft of the first motor is provided with a first gear meshing with the forward ratchet / reverse ratchet, the piston end of the cylinder is provided with a fork, and one end of the first gear is located in the opening of the fork; a mounting plate is provided on the connecting shaft; a rotating mechanism connected to the three-jaw chuck and used to drive the three-jaw chuck to rotate; The rotating mechanism includes a second motor and a spherical bearing, the spherical bearing is rotatably sleeved on the connecting shaft, a second gear is arranged on the output shaft of the second motor, the second gear is meshed with the outer ring of the spherical bearing, a chuck sleeve is provided on the three-jaw chuck, and the chuck sleeve is fixed on the spherical bearing.

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