Fixed-angle grinding wheel head rigidity enhancement braking device

Abstract

This invention relates to a rigidity-enhancing braking device for a fixed-angle grinding wheel head, mainly used to enhance the rigidity of the grinding wheel head for braking and positioning. It comprises: a base; a turntable pivotally connected to the base; a grinding wheel head mounted on the turntable; a drive device mounted on the base and connected to one side of the turntable, thereby providing a drive to rotate the turntable and the grinding wheel head reciprocally relative to the base by a specific angle; and a braking device connected between the base and the turntable. The braking device further includes an annular groove on the turntable, a piston ring installed within the annular groove, at least one brake pad on the bottom end face of the piston ring, and at least one oil inlet or air inlet on the top surface of the annular groove for introducing external hydraulic oil or air pressure.

Claims

1. A rigidity-enhancing braking device for a fixed-angle grinding wheel head, comprising: a base; a turntable pivotally connected to the base; a grinding wheel head connected to the turntable; a drive device mounted on the base and connected to one side of the turntable, for driving the turntable and the grinding wheel head to reciprocate and rotate relative to the base at a specific angle; and a braking device connected between the base and the turntable, wherein the braking device further comprises an annular groove on the turntable facing the base, a piston ring installed inside the annular groove, at least one brake pad between the bottom end face of the piston ring and the table surface of the base, and at least one oil inlet or air inlet on the top surface of the annular groove for introducing external hydraulic oil or air pressure source.

2. The rigidity-enhancing braking device for the fixed-angle grinding wheel head as described in claim 1, wherein a connecting portion is provided on one side of the turntable, and the connecting portion provides connection for the drive device.

3. The fixed-angle grinding wheel head rigidity enhancement braking device as described in claim 2, wherein the driving device further includes a linear slide rail, a slider and an actuating cylinder, wherein the linear slide rail and the actuating cylinder are fixedly connected to the base, and the slider is connected to the linear slide rail, wherein one side of the slider is connected to the connecting part provided on the turntable, and the other side is connected to one end of the moving rod of the actuating cylinder, so as to facilitate the actuating cylinder to drive the slider to perform relative displacement along the X-axis on the linear slide rail.

4. The fixed-angle grinding wheel head rigidity enhancement braking device as described in claim 3, wherein a Z-axis guide groove and a guide post are respectively added between the connecting part of the turntable and one side of the slider, and the guide post is vertically fitted into the guide groove so that when the slider makes X-axis displacement, the guide post makes relative radial displacement in the guide groove.

5. The fixed-angle grinding wheel head rigidity enhancement braking device as described in claim 3 or 4, wherein the driving device further includes a first stop and a second stop, and the first stop and the second stop are fixed on the base so as to allow the connecting part of the turntable to rotate precisely at a fixed angle between the first stop and the second stop.

6. The rigidity-enhancing braking device for the fixed-angle grinding wheel head as described in claim 5, wherein a first position sensor and a second position sensor are respectively provided corresponding to the first stop and the second stop, and the first position sensor and the second position sensor are connected to the base.

7. The rigidity-enhancing braking device for the fixed-angle grinding wheel head as described in claim 1, wherein the turntable is pivotally connected to the base by a composite bearing; and wherein a central rotating shaft and a bearing fitted into the central rotating shaft are additionally provided between the turntable and the grinding wheel head.

8. The rigidity-enhancing braking device for the fixed-angle grinding wheel head as described in claim 1, wherein an annular groove is added to the top surface of the annular groove of the braking device, and the oil inlet or air inlet is located on the top surface of the annular groove.

9. The rigidity-enhancing braking device for the fixed-angle grinding wheel head as described in claim 8, wherein the bottom of the grinding wheel head is provided with at least one through hole to facilitate the introduction of an external oil pressure pipe or air pressure pipe to the oil inlet or air inlet.

10. The fixed-angle grinding wheel head rigidity enhancement braking device as described in any one of claims 1-4 and 7-9, wherein the piston ring of the braking device is provided with a U-shaped cross section and at least one O-ring is provided on the outer periphery and the inner periphery of the piston ring respectively.

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