A Grinding Fixture for Machining Cylindrical Symmetric Inclines

Abstract

The invention discloses a grinding clamp used for machining symmetrical slopes of cylinders. The grinding clamp comprises a base, a stud, a left support, a right support, a main shaft, a locking disc, core shafts, a mat, a nut, double-end pins and positioning columns. The main shaft sequentially penetrates the locking disc, the left support and the right support from left to right and is connected with the locking disc through a key, and the main shaft and the locking disc can rotate jointly. The locking disc is of a sector structure and is connected with the left support through the stud. The base is of a structure with symmetrical slopes, the positioning columns are inserted into the slopes, and positioning of workpieces is guaranteed. The workpieces are arranged on the core shafts in a sleeving manner and clamped through screws, and the cylindrical faces of the workpieces are attached to the positioning columns. The grinding clamp has the beneficial effects that the angles of the machined slopes are guaranteed through locking of the locking disc, inaccuracy caused when the slopes are machined through a rotating dividing head is avoided, and operation is convenient; as six core shaft installing positions are arranged on the main shaft, the machining efficiency is improved; and meanwhile as clamping is carried out through the screws, assembling and disassembling are convenient and rapid, the machining cost is low, and the working efficiency is high.

Description

technical field [0001] The invention belongs to the field of grinding jigs, and in particular relates to a grinding jig for processing cylindrical symmetrical slopes. Background technique [0002] ZD6 switch machine is a device used in railway signal products to change the opening direction of the switch, lock the switch point rail, and respond to the position status of the point rail. place. Extrusion column (such as figure 1 , 2 Shown) is an important part of the pin protection device of the switch machine. Artifact composition (such as image 3 As shown) in the overall assembly with other parts, the 56° inclined surfaces on both sides coincide with the two 34° inclined surfaces on the corresponding parts, so the workpiece needs to process the inclined surfaces on the cylinder, and at the same time, the precision of the processed surface is high. Therefore, it is adopted The grinding machine rotates the dividing head to realize the angle of the inclined surface, but t...

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Problems solved by technology

Artifact composition (such as image 3 As shown) in the overall assembly with other parts, the 56° inclined surfaces on both sides coincide with the two 34° inclined surfaces on the corresponding parts, so the workpiece needs to process the inclined surfaces on the cylinder, and at the same time, the precision of the processed surface is high. Therefore, it is adopted The grinding machine rotates the dividing head to realize the angle of the inclined surface, but the processing efficiency is low, and the operation of the worker is time-consuming and laborious. Therefore, a high-efficiency processing device with high processing accuracy for the inclined surface is required.

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