A forward and backward swing guide mechanism for the tool holder body of a gear shaping machine

Abstract

The invention relates to a forward and backward swing guide mechanism of the tool holder body of a gear shaping machine, which includes a tool holder body, which is hinged on a column through an ear shaft, a main shaft is installed inside the tool holder body, and a gear shaping cutter is installed at the end of the main shaft. It is characterized in that: a crank link mechanism is installed on the top of the main shaft to drive it to reciprocate up and down, and a longitudinal swing guide mechanism is installed at the position where the lower end of the main shaft matches the column; the longitudinal swing guide mechanism includes steel guide rails, steel guide rails Fixedly installed on the tool holder body, the right side of the steel guide rail matches the right gap compensation device, and the right gap compensation device is installed on the right side of the column; the left side of the steel guide rail matches the left side The gap compensation device is matched, and the left gap compensation device is installed on the left side of the column. It realizes the design requirement that the tool holder body swings back and forth to allow the tool to be guided without backlash, and has the advantages of the feasibility of the assembly process, so it is especially suitable for the existing gear shaper to guide the tool.

Description

technical field [0001] The invention belongs to the field of gear shaping machine devices, and in particular relates to a backlash-free guiding mechanism for a tool holder body of a gear shaping machine. Background technique [0002] Gear shaping is to use a gear shaping cutter on a gear shaping machine to process gears according to the principle of generating method. The gear shaper cutter is installed on the cutter shaft to make up and down reciprocating cutting motion through the crank mechanism. During the return stroke of the gear shaper cutter, the tool holder body swings back and forth to realize the retraction action of the gear shaper cutter. Such as figure 2 Shown is a structural schematic diagram of the front and rear swing guide mechanism of the existing gear shaping machine tool holder body, which is composed of inserts, adjustment pads, and steel guide rails, and cast iron inserts are used as the guide mechanism. According to the requirements of the guiding p...

AI Technical Summary

Problems solved by technology

[0004] 1. The assembly process of the insert guide mechanism is complicated. In order to ensure sufficient guide rigidity and the tool holder body can swing flexibly, the sliding gap between the insert and the steel guide rail needs to be strictly controlled

[0005] 2. There is a guide gap after the insert guide mechanism has been running for a long time. The tool holder body will be affected by the cutting momentum during the gear shaping process, and the tool holder body will vibrate, which will affect the machining accuracy of the machine tool.

[0006] 3. It is inconvenient to adjust the gap of the guide mechanism of the insert, which requires professional and technical personnel to adjust, and it is difficult to maintain the machine tool later

[0007] 4. In the follow-up encountering the above situation, it is usually necessary to re-adjust the gap between the inserts. If the guide gap is too small, the tool holder body cannot swing flexibly. If the gap is too large, it will affect the cutting rigidity of the gear shaping machine tool shaft.

Images