Hole grinding device for internal scrap discharging type rose reamer

Abstract

The invention discloses a hole grinding device for an internal scrap discharging type rose reamer. The hole grinding device for the internal scrap discharging type rose reamer comprises a clamping assembly and a hole grinding assembly, wherein the clamping assembly comprises a spring, a spring collet, a mandril, a first V-shaped block and a second V-shaped block, the spring collet is arranged at the front end of the spring, the rear end of the mandril is connected to the spring and extends forwards to penetrate through the spring collet, and the mandril is sleeved with the spring collet in the mode that the spring collet can be separated from or clamped to the mandril so that the mandril can be limited in the axial direction; a workpiece is placed in a V-shaped groove where the first V-shaped block and the second V-shaped block are fixed, and the front end of the mandril penetrates through an inner hole to be machined of the workpiece so that the position of the inner hole can be adjusted and corrected; the hole grinding assembly comprises an electric grinding head, an ejector rod and a grinding wheel, the electric grinding head is connected with the ejector rod and drives the ejector rod to rotate, and the grinding wheel is arranged at the front end of the ejector rod and rotates along with the ejector rod. The hole grinding device for the internal scrap discharging type rose reamer has the advantages that the structure is simple, operation processes are simple, operation is easy and convenient, the calibration accuracy is high, and the polishing quality is high.

Description

technical field [0001] The invention relates to grinding equipment, in particular to a device for grinding holes with an internal chip removal chamfering knife. Background technique [0002] The internal chip removal chamfering tool is a new type of special tool for chamfering. It grinds the relief angle on the outer conical surface. Iron filings are discharged from the hole. Due to the internal chip removal, the cooling effect is good, the chip removal is smooth, and the roughness of the processed surface is also good. Manufacturers generally use a special fixture to drill a hole on the inclined surface before heat treatment during production. After heat treatment, some factories perform polishing treatment, and some factories fix the workpiece on the special fixture and install it on the inner circular grinder, and use four claws to align and grind the inner hole. The disadvantages of the prior art are: (1) the inner hole adopts polishing technology, which is labor-inte...

AI Technical Summary

Problems solved by technology

The disadvantages of the prior art are: (1) The inner hole adopts polishing technology, which is labor intensive and low in production efficiency. Polishing can only remove some black skin on the surface, which fails to improve the quality of the inner hole and improve the cutting performance.

(2) Although the special fixture for internal grinding can improve the quality of the inner hole and improve the cutting performance, it is difficult to achieve accurate positioning. Increased quantity requirements, low production efficiency, not suitable for mass production

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