CN211916212U

CN211916212U - Iron seat milling fixture

Info

Publication number: CN211916212U
Application number: CN202020385454.6U
Authority: CN
Inventors: 焦会军
Original assignee: Qinhuangdao Shanhaiguan Railway Material Co ltd
Current assignee: Qinhuangdao Shanhaiguan Railway Material Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-13
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses an iron seat milling fixture, which comprises a groove-shaped fixture seat, wherein a T-shaped partition plate is arranged on the groove-shaped fixture seat, the T-shaped partition plate is provided with a supporting end surface and a limiting end surface which are mutually vertical, levers which are rotatable and have extrusion heads at one ends are symmetrically arranged on the groove-shaped fixture seats at the two ends of the limiting end surface, the other ends of the levers are hinged with two cylinders arranged at the two sides of the supporting end surface, the moving directions of the two cylinders are opposite, a separating stop block is arranged in the middle of the limiting end surface to form two stations for placing iron seats, and upper limiting cover plates are arranged on the separating stop block and vertical plates at the two; the groove-shaped fixture seat is fixedly installed on the sliding table of the lathe bed, and the milling surface of the iron seat corresponds to the milling power head. Therefore, the milling fixture adopts a four-side positioning workpiece consisting of an upper side surface positioning reference surface, a lower side surface positioning reference surface and an air cylinder clamping surface, and has the advantages of convenient and quick operation, great saving of auxiliary time and improvement of processing efficiency.

Description

Iron seat milling fixture

Technical Field

The utility model relates to an iron stand milling fixture for on railway switch board, specifically speaking are iron stand anchor clamps for installing mill switch backing plate usefulness on the lathe.

Background

The iron seat is a part used on the turnout base plate, the using amount is very large, and one surface needs to be processed after casting. At present, most of iron seat milling fixtures are provided with a plurality of pressure plates which are individually fixed on a sliding table of a machine tool one by one through bolts, and the method has the following defects: each iron seat needs to be independently fixed, the operation is time-consuming and labor-consuming, the auxiliary time is long, and the processing efficiency is low.

Disclosure of Invention

In view of the above current situation, the utility model provides an iron seat milling fixture, it has characteristics such as simple structure, operation are swift, convenient. The fixture can effectively improve the processing efficiency.

The utility model adopts the technical proposal that: an iron seat milling fixture comprises a groove-shaped fixture seat, wherein a T-shaped partition plate is arranged on the groove-shaped fixture seat, the T-shaped partition plate is provided with a supporting end face and a limiting end face which are perpendicular to each other, levers which can rotate and are provided with extrusion heads at one ends are symmetrically arranged on the groove-shaped fixture seats at two ends of the limiting end face, the other ends of the levers are hinged with two air cylinders arranged at two sides of the supporting end face, the moving directions of the two air cylinders are opposite, a separation stop block is arranged in the middle of the limiting end face to form two stations for placing iron seats, and upper limiting cover plates are arranged on the separation stop block and vertical plates; the groove-shaped fixture seat is fixedly installed on a sliding table of a machine tool, and a milling surface of the iron seat corresponds to the milling power head.

In the above, the groove-shaped clamp seat and the T-shaped partition plate are integrally formed, or are of a split combination structure, and the split combination structure is connected through bolts.

In the above, the T-shaped partition plate and the partition block are integrally formed, or are of a split combination structure, and the split combination structure is connected by bolts.

The utility model has the advantages that: because the four-side positioning workpiece formed by the upper and lower side positioning reference surfaces and the air cylinder clamping surface is adopted by the clamp, the clamp has the advantages of convenient and quick operation, great saving of auxiliary time and improvement of processing efficiency.

Drawings

FIG. 1 is a view of the novel clip assembly;

FIG. 2 is a view of the installation of FIG. 1 with a machine tool;

FIG. 3 is a view of a machined surface of an iron seat;

fig. 4 is a reference view of the fixture station milling process with the iron base mounted on the machine tool.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An iron seat milling fixture as shown in fig. 1 to 3 comprises a rectangular groove-shaped fixture seat 1, wherein a T-shaped partition plate is arranged on the groove-shaped fixture seat 1, and the T-shaped partition plate is provided with a supporting end surface 8 and a limiting end surface 9 which are perpendicular to each other. In this embodiment, a split combination structure is adopted between the T-shaped partition plate and the groove-shaped fixture seat 1, and the split combination structure is connected into a whole through bolts. The upper surfaces of the groove-shaped clamp seats 1 at the two ends of the limiting end surface 9 are symmetrically provided with rotatable levers 5 with extrusion heads at one ends, and the levers 5 are hinged through fixed pin shafts 4 on the groove-shaped clamp seats 1; the other end of the lever 5 is hinged with two cylinders 2 which are arranged on two sides of a supporting end surface 8 and have opposite movement directions through a pin shaft 3, and the two cylinders 2 control the lever 5 with an extrusion head to move oppositely and separate a clamp station formed between the stop blocks 6, so that the clamping effect on the station is realized. This is novel to be equipped with at the middle part that is located spacing terminal surface 9 and separate dog 6 and constitute two independent stations that are used for placing the iron stand. In this embodiment, each station can clamp 10 iron seats 13 at a time, the upper limiting cover plate 7 is arranged on vertical plates on two sides of the separation stop 6 and the groove-shaped fixture seat 1, and the upper limiting cover plate 7 is used for limiting the upward movement of the iron seats 13 placed on the station. The clamp formed in the above way is installed on a sliding table 10 of a milling machine body 11 through a groove-shaped clamp seat 1 and is fixed on the sliding table 10 through a T-shaped bolt. The milling surface of the iron seat 13 on the groove-shaped fixture seat 1 corresponds to one side of the milling power head 12.

In the above, the groove-shaped fixture seat 1 and the T-shaped partition plate may be integrally formed, besides being formed by separate combination structures.

In the above, the spacing end face 9 of the T-shaped partition plate and the partition block 6 are integrally formed, or are of a split combination structure, and the split combination structure is connected by bolts.

As shown in fig. 4, the cylinder 2 is in a closed state while the lever 5 is also in a released state. Then, 20 iron bases 13 are respectively placed on the left station and the right station, and are arranged orderly, so that the positioning reference surface of the iron base is ensured to be tightly attached to one side of the limiting end surface 9. And starting the air cylinder 2 to extend a piston rod of the air cylinder 2, swinging the action lever 5 to one side to clamp the iron seat 13, and starting a milling power head 12 of the machine tool to mill the arranged iron seats 13.

And after the milling of the iron seat is finished, closing the air cylinder 2, loosening the lever 5, taking out the iron seat 13, resetting the sliding table 10, and entering the next working cycle.

Claims

1. A milling fixture for an iron seat is characterized by comprising a groove-shaped fixture seat, wherein a T-shaped partition plate is arranged on the groove-shaped fixture seat, the T-shaped partition plate is provided with a supporting end face and a limiting end face which are perpendicular to each other, levers which can rotate and are provided with extrusion heads at one ends are symmetrically arranged on the groove-shaped fixture seats at two ends of the limiting end face, the other ends of the levers are hinged with two air cylinders arranged at two sides of the supporting end face, the moving directions of the two air cylinders are opposite, a separating stop block is arranged in the middle of the limiting end face to form two stations for placing the iron seat, and upper limiting cover plates are arranged on the separating stop; the groove-shaped fixture seat is fixedly installed on the sliding table of the lathe bed, and the milling surface of the iron seat corresponds to the milling power head.

2. The iron seat milling fixture as claimed in claim 1, wherein the slot-type fixture seat is integrally formed with the T-shaped partition plate or is a split combination structure, and the split combination structure is connected by bolts.

3. The iron seat milling fixture according to claim 1, wherein the T-shaped partition plate and the partition block are integrally formed or are in a split combination structure, and the split combination structure is connected through bolts.