Irregular outer edge chamfering device

Abstract

The utility model relates to the technical field of chamfering machines, and discloses an irregular outer edge chamfering device which comprises a chuck and a grinding wheel, the chuck is rotationally connected to a rack, and a driving mechanism for driving the chuck to rotate is arranged on the rack; the driving mechanism is a first motor, and the first motor directly drives the chuck to rotate or drives the chuck to rotate through a speed reducer; the driving mechanism can also be a gear-rack mechanism, a gear is coaxially and fixedly connected with the chuck, and a rack is connected with a telescopic cylinder for driving the rack to linearly move; the driving mechanism is electrically connected with a controller, the grinding wheel is fixed to one end of a rotating shaft, the other end of the rotating shaft is connected with a driving element driving the rotating shaft to rotate, the driving element is fixed to one end of a turnover frame, the turnover frame is rotationally connected to a support, and the support is fixedly connected with the rack. The rotatable chuck is matched with the follow-up grinding wheel, so that the outer edge of an irregular workpiece can be automatically chamfered, and the problem of low efficiency of existing manual chamfering is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chamfering machines, and particularly relates to an irregular outer edge chamfering device. Background Art

[0002] A hub bearing is a component applied to an automobile axle to bear weight and provide precise guidance for the rotation of the hub. It undertakes the important task of reducing the frictional resistance during the operation of the chassis and maintaining the normal driving of the automobile. Therefore, as a key component of automobile parts, the hub bearing must be strictly quality-controlled. The flanges of existing hub bearings generally have irregular shapes. The chamfering work on the outer edge of the hub bearing flange after processing is generally carried out manually by workers using tools such as grinders or files, and the chamfering efficiency is relatively low. Content of the Utility Model

[0003] The purpose of the utility model is to provide an irregular outer edge chamfering device, which can automatically chamfer the outer edge of an irregular workpiece through a rotatable chuck and a follow-up grinding wheel, and solves the problem of low efficiency of existing manual chamfering.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] An irregular outer edge chamfering device includes a chuck and a grinding wheel. The chuck is rotatably connected to a machine frame, and a driving mechanism for driving the chuck to rotate is provided on the machine frame; the driving mechanism is a first motor, and the first motor directly drives the chuck to rotate or drives the chuck to rotate through a speed reducer; the driving mechanism can also be a gear-rack mechanism, the gear is fixedly connected to the chuck coaxially, and the rack is connected to a telescopic cylinder for driving its linear movement; the driving mechanism is electrically connected to a controller, and the controller controls the expansion and contraction of the chuck jaws.

[0006] The grinding wheel is fixed to one end of a rotating shaft, and the other end of the rotating shaft is connected to a driving element for driving it to rotate. The driving element is fixed to one end of a turning frame, and the turning frame is rotatably connected to a support, and the support is fixedly connected to the machine frame.

[0007] The utility model is further provided as: the support includes a vertically arranged screw rod, a lifting base inserted on the screw rod, and two locking nuts screwed on the screw rod.

[0008] The screw rod is fixed to the machine frame, the two locking nuts are arranged on both sides of the lifting base and are closely attached to the lifting base, and the turning frame is rotatably connected to the lifting base.

[0009] The present utility model is further configured as follows: A cylinder is fixed on the lifting base, a connecting rod is fixed to the end of the piston rod of the cylinder, a spring connecting plate is fixed to the lower end of the connecting rod, the spring connecting plate is fixed to the lower end of a spring, and the lower end of the spring is fixed to one end of the flipping frame away from the driving element. When chamfering work is carried out, the spring is a compression spring that provides an upward force to the flipping frame, so that the grinding wheel end receives a downward force to keep the grinding wheel always in contact with the workpiece; when replacing the workpiece, the cylinder drives the spring connecting plate to move downward through the connecting rod, so that the spring becomes a tension spring that provides a pulling force to the flipping frame, thereby lifting the grinding wheel end upward.

[0010] The present utility model is further configured as follows: The driving element is a motor. The rotating shaft is fixedly connected coaxially with the motor shaft of the motor, and the motor is fixed on the flipping frame.

[0011] The present utility model is further configured as follows: The driving element is a pneumatic screwdriver or an electric screwdriver. The rotating shaft is connected to the rotatable output end of the pneumatic screwdriver or the electric screwdriver, and the housing of the pneumatic screwdriver or the electric screwdriver is fixed on the flipping frame.

[0012] The prominent effect of the present utility model is:

[0013] Compared with the prior art, through the rotatable chuck cooperating with the follow-up grinding wheel, the outer edge of the irregular workpiece can be automatically chamfered, solving the problem of low efficiency of the existing manual chamfering. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0015] Reference numerals: 10, chuck;

[0016] 20, grinding wheel; 21, rotating shaft; 22, driving element; 23, flipping frame; 24, bracket; 25, cylinder; 26, connecting rod; 27, spring connecting plate; 28, spring;

[0017] 241, screw rod; 242, lifting base; 243, locking nut;

[0018] 90, workpiece. Detailed Description of the Embodiment

[0019] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0020] The following is a reference to Figure 1 to illustrate the embodiments of the present utility model:

[0021] An irregular outer edge chamfering device includes a chuck 10 and a grinding wheel 20. The chuck 10 is rotatably connected to the frame, and a driving mechanism for driving the rotation of the chuck 10 is provided on the frame; the driving mechanism is a first motor, and the first motor directly drives the chuck to rotate or drives the chuck to rotate through a speed reducer; the driving mechanism can also be a gear-rack mechanism, the gear is fixedly connected coaxially with the chuck, and the rack is connected with a telescopic cylinder for driving its linear movement; the driving mechanism is electrically connected to a controller, and the controller controls the expansion and contraction of the jaws of the chuck 10.

[0022] The grinding wheel 20 is fixed at one end of a rotating shaft 21, and the other end of the rotating shaft 21 is connected to a driving element 22 for driving its rotation. The driving element 22 is fixed at one end of a turning frame 23. The turning frame 23 is rotatably connected to a support 24, and the support 24 is fixedly connected to the frame. The driving element 22 is a motor and can also be a pneumatic screwdriver or an electric screwdriver.

[0023] The support 24 in this embodiment includes a vertically arranged screw rod 241, a lifting base 242 sleeved on the screw rod 241, and two locking nuts 243 screwed on the screw rod 241.

[0024] The screw rod 241 is fixed on the frame. The two locking nuts 243 are arranged on both sides of the lifting base 242 and are closely attached to the lifting base 242. The turning frame 23 is rotatably connected to the lifting base 242.

[0025] A cylinder 25 is fixed on the lifting base 242 in this embodiment. The end of the piston rod of the cylinder 25 is fixed with a connecting rod 26. The lower end of the connecting rod 26 is fixed with a spring connecting plate 27. The spring connecting plate 27 is fixedly connected to the lower end of a spring 28. The lower end of the spring 28 is fixed at one end of the turning frame 23 away from the driving element 22. When chamfering, the spring is a compression spring to provide an upward force to the turning frame, so that a downward force is applied to the grinding wheel end to make the grinding wheel always abut against the workpiece; when replacing the workpiece, the cylinder drives the spring connecting plate to move downward through the connecting rod, so that the spring is a tension spring to provide a pulling force to the turning frame, thereby lifting the grinding wheel end upward. The cylinder and the driving element are controlled by the controller.

[0026] Working principle: First, place the workpiece 90 on the chuck 10, and the chuck 10 clamps the workpiece 90; second, the piston rod of the cylinder contracts to drive the spring connecting plate to move upward, and the spring connecting plate drives the spring to change from the tension spring state to the compression spring state, thereby driving the turning frame to turn, and the turning frame drives the grinding wheel to move downward so that the lower half side of the grinding wheel abuts against the outer edge of the workpiece; third, while the grinding wheel approaches the workpiece, the chuck drives the workpiece to rotate, and the driving element drives the grinding wheel to rotate through the rotating shaft, and the grinding wheel thus grinds the outer edge of the workpiece; when the grinding wheel touches different positions of the irregular outer edge of the workpiece, the grinding wheel can automatically move up or down, thereby completing the grinding of the entire outer edge.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An irregular outer edge chamfering device, characterized in that: The invention comprises a chuck (10) and a grinding wheel (20), wherein the chuck (10) is rotatably connected to a frame, and a driving mechanism for driving the chuck (10) to rotate is provided on the frame; the grinding wheel (20) is fixed to one end of a rotating shaft (21), and a driving element (22) for driving the grinding wheel to rotate is connected to the other end of the rotating shaft (21), and the driving element (22) is fixed to one end of a turning frame (23), and the turning frame (23) is rotatably connected to a bracket (24), and the bracket (24) is fixedly connected to the frame.

2. The irregular outer edge chamfering device according to claim 1, characterized in that: The support (24) comprises a vertically arranged screw rod (241), a lifting base (242) inserted into the screw rod (241), and two locking nuts (243) screwed onto the screw rod (241).

3. The irregular outer edge chamfering device according to claim 2, characterized in that: A cylinder (25) is fixed on the lifting base (242); a connecting rod (26) is fixed to the end of the piston rod of the cylinder (25); a spring connecting plate (27) is fixed to the lower end of the connecting rod (26); the spring connecting plate (27) is fixed to the lower end of a spring (28); and the lower end of the spring (28) is fixed to an end of the flip frame (23) away from the driving element (22).

4. The irregular outer edge chamfering device according to claim 1, characterized in that: The driving element (22) is a motor.

5. The irregular outer edge chamfering device according to claim 1, characterized in that: The driving element (22) is a pneumatic screwdriver or an electric screwdriver.

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