CN213827929U

CN213827929U - Special fixture of pivot angle cutter head processing

Info

Publication number: CN213827929U
Application number: CN202021718984.4U
Authority: CN
Inventors: 王凤晨
Original assignee: Beijing Beiyi Machine Tool Co ltd
Current assignee: Beijing Beiyi Machine Tool Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-07-30
Anticipated expiration: 2030-08-18

Abstract

A special fixture for machining a swing angle milling head belongs to the technical field of machinery. The bottom plate passes through triangular support plate connection supporting seat, and the cross-section of supporting seat is the L type, and the top surface both ends and the contained angle department of supporting seat have the dress card reference surface respectively, and the dress card reference surface is first dress card reference surface, and second dress card reference surface and third dress card reference surface, first dress card reference surface have location screw hole (8), and second dress card reference surface has location screw hole (8), and third dress card reference surface has cylinder pinhole (10). The utility model has the advantages that: the box body is integrally machined in a final finish machining mode, the consistency is good, the stress deformation is small, the size precision and the integral form and position tolerance precision are improved, and the effect is very obvious.

Description

Special fixture of pivot angle cutter head processing

Technical Field

The utility model relates to a special fixture of pivot angle cutter head processing belongs to mechanical technical field.

Background

Because the box body of the swing angle milling head consists of a plurality of holes and planes, the box body is not suitable for designing auxiliary clamping of a casting process navel (because the process navel is removed after finish machining, stress change can occur, the adjacent related sizes are changed, and the phenomena of form and position tolerance, accuracy out-of-tolerance and the like are caused). And the appearance is provided with a plurality of arc surfaces, so that the universal fixture is inconvenient to clamp at one time during the finish machining process, and the finish machining of the sizes of all the pores is completed.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a special fixture for processing a swing angle milling head.

A bottom plate is connected with a supporting seat through a triangular supporting plate, the cross section of the supporting seat is L-shaped, clamping reference surfaces are arranged at two ends of the top surface of the supporting seat and at included angles respectively, the clamping reference surfaces are a first clamping reference surface, a second clamping reference surface and a third clamping reference surface, the first clamping reference surface is provided with a positioning threaded hole, the second clamping reference surface is provided with a positioning threaded hole, and the third clamping reference surface is provided with a cylindrical pin hole. The screw hole is M10 screw hole, and the cylinder pinhole diameter is 10 mm. The bottom plate is distributed with fixed holes. More than 2 triangular support plates are supported between the support base and the bottom plate.

The utility model has the advantages that: the box body is integrally machined in a final finish machining mode, the consistency is good, the stress deformation is small, the size precision and the integral form and position tolerance precision are improved, and the effect is very obvious.

When the box body is subjected to the final finish machining process, the upper surface of the tool clamp is matched with the process surface of the box body, and the 5-M10 threaded hole and the 2-phi 10H7 cylindrical pin hole which are formed in the process surface of the box body are used for installing and positioning, so that the effects of supporting the box body and clamping are achieved, and the stress deformation of the box body caused by directly pressing and clamping the box body is avoided. And unifying the machining standard during finish machining, wherein the machining standard is associated with the technical requirement of the key design standard of the box body. The purposes of one-time clamping and one-time integral processing are achieved.

Drawings

The invention itself, however, as well as many of the attendant advantages thereof, will be best understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein like reference numerals indicate like parts throughout the several views, and wherein:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the usage state of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Obviously, many modifications and variations of the present invention based on the spirit of the present invention will be apparent to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description, "plurality" means two or more unless specifically limited otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.

The following description is further illustrative in combination for the purpose of facilitating an understanding of the embodiments, and is not intended to limit the embodiments of the invention.

Example 1: as shown in figures 1 and 2, a special fixture for machining a swing angle milling head, a bottom plate 1 is connected with a supporting seat 2 through a triangular supporting plate 3, the cross section of the supporting seat 2 is L-shaped, clamping reference surfaces are respectively arranged at two ends and an included angle of the top surface of the supporting seat 2, the clamping reference surfaces are a first clamping reference surface 5, a second clamping reference surface 6 and a third clamping reference surface 7, the first clamping reference surface 5 is provided with a positioning threaded hole 8, the second clamping reference surface 6 is provided with a positioning threaded hole 8, the third clamping reference surface 7 is provided with a cylindrical pin hole 10, the positioning threaded hole is an M10 threaded hole, the diameter of the cylindrical pin hole is phi 10mm, and fixing holes 4 are distributed in the bottom plate 1. More than 2 triangular support plates 3 are supported between the support base 2 and the base plate 1.

When the box body is subjected to a final finish machining process, the supporting surface of the tool clamp is matched with the process surface of the box body 11, and the 5-M10 threaded hole and the 2-phi 10H7 cylindrical pin hole which are formed in the process surface of the box body are used for installing and positioning, so that the effects of supporting the box body and clamping are assisted, and the stress deformation of the box body caused by directly pressing and clamping the box body is avoided. And unifying the machining standard during finish machining, wherein the machining standard is associated with the technical requirement of the key design standard of the box body. The purposes of one-time clamping and one-time integral processing are achieved.

Example 2: as shown in fig. 1 and 2, a fixture special for machining a swing angle milling head is used for modeling a swing angle milling head box by using three-dimensional design software, and analyzing the stress and the gravity center of the swing angle milling head box. And then selecting the appearance of the box body to facilitate clamping, adding a process plane, a positioning pin hole and a screw connecting hole, and giving requirements on geometric tolerance and dimensional precision. Secondly, designing a special tool clamp by combining the process requirements of the box body, optimizing the structure, drawing a two-dimensional view according to the optimized structure conversion, performing verification and manufacture, casting a blank by using an HT-300 material, performing annealing treatment after the blank is manufactured, eliminating internal stress, and performing finish machining by using a numerical control machine tool.

As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the invention and its effects. Therefore, all such modifications are included in the scope of the present invention.

Claims

1. A special fixture for machining a swing angle milling head is characterized in that a bottom plate is connected with a supporting seat through a triangular supporting plate, the cross section of the supporting seat is L-shaped, clamping reference surfaces are arranged at two ends of the top surface and at a included angle of the supporting seat respectively, the clamping reference surfaces are a first clamping reference surface, a second clamping reference surface and a third clamping reference surface, the first clamping reference surface is provided with a positioning threaded hole 8, the second clamping reference surface is provided with a positioning threaded hole 8, and the third clamping reference surface is provided with a cylindrical pin hole 10; the positioning threaded hole is an M10 threaded hole, and the diameter of the cylindrical pin hole is 10 mm; the bottom plate is distributed with fixing holes; more than 2 triangular support plates are supported between the support base and the bottom plate.