Electric chuck

Abstract

The utility model discloses an electric chuck which comprises a servo motor, and a driving gear is meshed with a moving gear. The air cylinder can make the moving shaft move axially and drive the moving gear to be located at the first position or the second position. When the moving gear is at the first position, the locking gear is meshed with the chuck gear, and the motor drives the driving gear to rotate forwards or reversely and drives the scroll to rotate so that the clamping jaws on the chuck can be locked or loosened. When the moving gear is at the second position, the locking gear and the chuck gear are released from meshing, the moving gear and the transmission gear are meshed, the motor drives the driving gear to rotate and drives the center rotating shaft to rotate through the moving gear, the transmission gear and the rotating gear in sequence, and the chuck can rotate; and two groups of actions of locking / loosening the clamping jaw and driving the chuck to rotate by the main shaft can be realized by adopting a single motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to an electric rotary locking chuck. Background Art

[0002] In the prior art, the electric chuck is driven by two power sources, one uses a common motor to rotate the "wire disk" through a connecting rod to retract the clamping jaws, and the other power source rotates the main shaft of the original equipment. Another driving method is to use a common motor to rotate the "wire disk" through a connecting rod, and install a driving motor according to actual needs. Two power sources are also required to meet the use of the electric chuck.

[0003] The existing technology has the following defects and deficiencies:

[0004] A. Two drive motors are required to complete the required movement (chuck rotation and chuck locking).

[0005] B. The center of the chuck is not a through hole, which has limitations for the processing of long workpieces.

[0006] C. The rotation angle of the chuck cannot be set arbitrarily, and the clamping force of the jaws cannot be read and set.

[0007] D. The electric chuck is long and has limited installation range. Utility Model Content

[0008] The utility model aims to provide an electric chuck which can realize two sets of actions, namely, locking / loosening of the chuck claws and rotation of the chuck driven by the main shaft, by using a single motor.

[0009] The technical solution of the utility model includes: comprising a servo motor, which can drive the driving gear to rotate forward or reverse, the driving gear is meshed with the moving gear, and can drive the moving gear to rotate; the moving gear and the locking gear are both tightly sleeved on the moving shaft, and the moving shaft can move axially under the action of the cylinder and drive the moving gear to be respectively located at the first position and the second position; the central rotating shaft, the chuck gear, the wire reel, the chuck and the central rotating shaft are coaxially arranged, the chuck and the central rotating shaft are fixedly connected by bolts, and the wire reel and the chuck gear are fixedly connected by bolts; the chuck is arranged with radially movable claws, and the claws are meshed with the wire reel; the rotating gear is tightly sleeved on the central rotating shaft and meshed with the transmission gear; it also includes a chuck and claws, the claws are embedded in the radial grooves of the chuck and can move radially.

[0010] When the moving gear is in the first position, the electric chuck is used to lock / release the jaws, the locking gear and the chuck gear are meshed, the motor drives the driving gear to rotate forward or reverse, and drives the moving gear, moving shaft, locking gear, chuck gear and wire reel to rotate in turn, so that the wire reel drives the jaws to move radially in the chuck toward the axis direction or the opposite direction of the axis to complete the locking or loosening of the workpiece.

[0011] When the moving gear is in the second position, the electric chuck is used to drive the chuck to rotate, the locking gear and the chuck gear are disengaged, the moving gear and the transmission gear are engaged, the motor drives the driving gear to rotate, and in turn drives the moving gear, the transmission gear, the rotating gear, and the central shaft to rotate, so that the chuck can rotate. In this state, the claws, the wire disc, and the chuck gear rotate synchronously, so the locking or loosening state of the claws does not change.

[0012] Preferably, the moving shaft, the central rotating shaft, etc. are supported by a bearing seat.

[0013] Preferably, the chuck has a flange cover.

[0014] Preferably, the chuck is a through hole.

[0015] When the electric chuck of the present invention is used, firstly, the movable gear is adjusted to the first position, the motor is started to drive the driving gear to rotate forward, and the claws clamp the workpiece; secondly, the movable gear is adjusted to the second position, the motor is started to drive the central shaft and the chuck to rotate, and it can be used for workpiece processing; finally, after the workpiece processing is completed, the movable gear is adjusted to the first position again, the motor is started to drive the driving gear to rotate reversely, the claws are released, and the processed workpiece is removed.

[0016] Beneficial effects of the utility model:

[0017] A. One drive motor is used to complete the movement of two drive motors of the existing electric chuck.

[0018] B. The chuck has a through hole to facilitate the passage of the workpiece.

[0019] C. The rotation angle of the chuck and the clamping torque of the jaws can be set.

[0020] D. Reduced length, small space occupied, easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 A schematic diagram of the electric chuck provided by the utility model;

[0023] Figure 2 A cross-sectional view of the electric chuck provided by the utility model when the moving gear is in the first position;

[0024] Figure 3 A cross-sectional view of the electric chuck provided by the utility model when the moving gear is in the second position;

[0025] Reference numerals:

[0026] 1-servo motor, 2-cylinder, 3-moving shaft, 4-moving gear, 5-driving gear, 6-locking gear, 7-chuck gear, 8-wire disk, 9-chuck, 10-claw, 11-transmission gear, 12-rotating gear, 13-center shaft. DETAILED DESCRIPTION

[0027] The example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present invention will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art.

[0028] See also Figure 1 The figure shows the overall schematic diagram of the electric chuck provided by the utility model, including a chuck 9 and a claw 10 arranged on the chuck. The claw can move radially on the chuck 9 to clamp or release the workpiece to be processed (not shown). The chuck 9 can rotate to clamp the workpiece for processing. The radial movement of the claw 10 and the rotation of the chuck 9 are driven by the gear set in the box.

[0029] See also Figure 2 and Figure 3 The electric chuck provided by the utility model includes a servo motor 1, the motor 1 drives the driving gear 5 to rotate, the driving gear 5 is meshed with the moving gear 4; the moving shaft 3, the moving gear 4 and the locking gear 6 are all fastened on the moving shaft 3; the cylinder 2, the cylinder 2 makes the moving shaft 3 move axially and drives the moving gear to be located at the first position ( Figure 2 ) or the second position ( Figure 3 );Central rotating shaft 13, chuck gear 7, wire reel 8, chuck 9 are coaxially arranged with the central rotating shaft 13, chuck 9 is fixedly connected with the central rotating shaft 13 by bolts, wire reel 8 and chuck gear 7 are fixedly connected by bolts; chuck 9 is provided with radially movable claws 10, which are meshed with wire reel 8; rotating gear 12 is tightly sleeved on the central rotating shaft 13 and meshed with transmission gear 11.

[0030] See also Figure 2, when the moving gear 4 is in the first position, the locking gear 6 and the chuck gear 7 are meshed. Figure 3 When the moving gear 4 is in the second position, the locking gear 6 and the chuck gear 7 are disengaged, and the moving gear 4 and the transmission gear 11 are engaged.

[0031] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Any modification or equivalent substitution made to the technical solution of the utility model by ordinary technicians in this field shall be included in the scope of the claims of the utility model as long as it does not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An electric chuck, characterized in that: It includes a servo motor, the motor drives the driving gear to rotate, and the driving gear is meshed with the moving gear; a moving shaft, the moving gear and the locking gear are both tightly sleeved on the moving shaft; a cylinder, the cylinder makes the moving shaft move axially and drives the moving gear to be located at a first position or a second position; a central rotating shaft, a chuck gear, a wire reel, and the chuck is coaxially arranged with the central rotating shaft, the chuck is fixedly connected with the central rotating shaft by bolts, and the wire reel and the chuck gear are fixedly connected by bolts; the chuck is arranged with radially movable claws, and the claws are meshed with the wire reel; The rotating gear is tightly sleeved on the central rotating shaft and meshes with the transmission gear; When the moving gear is in the first position, the locking gear and the chuck gear are meshed; When the moving gear is in the second position, the locking gear and the chuck gear are disengaged, and the moving gear and the transmission gear are engaged.

2. The electric chuck according to claim 1, characterized in that: The servo motor drives the driving gear to rotate forward or reverse.

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