CN203945138U

CN203945138U - Machining large cutter box parts special fixture

Info

Publication number: CN203945138U
Application number: CN201420359522.6U
Authority: CN
Inventors: 刘振玲; 闫新婷; 张桂萍; 黄世经
Original assignee: Tianjin No 1 Machine Tool Works
Current assignee: Tianjin No 1 Machine Tool Works
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2014-11-19
Anticipated expiration: 2024-06-30

Abstract

The utility model relates to a kind of machining large cutter box parts special fixture, be characterised in that: comprise that cross section is trapezoidal plate body, be arranged on driving handle and the multiple boss that are arranged on plate body upper surface on plate body two sides, plate body bottom surface is the lower datum level coordinating with processed cutter casing, plate body bottom is shaped with the keyway for coordinating with the protruding key of cutter casing, keyway left surface is the left side datum level matching with the protruding key of processed cutter casing one side, under keyway left side datum level and plate body, datum level is mutual vertical plane, under the upper datum level of boss and plate body, datum level is the face of being parallel to each other.Advantage is: simple in structure, easy to use, the manufacturing process facilitating while therefore can be large-scale cutter box parts scraping and advanced technique, thus can improve cutter casing part processing precision, quality and work efficiency, and can economize on the use of funds, special adaptation, produces in batches.

Description

Machining large cutter box parts special fixture

Technical field

The utility model belongs to metal cutting machinery technical field, particularly relates to a kind of machining large cutter box parts special fixture.

Background technology

Machine tool casing is the important component part of whole lathe, and other parts of lathe are coupled to each other together by cutter casing, so the quality of cutter casing part quality directly affects the precision of whole lathe.When cutter box parts is added to man-hour, first to process the desired locating surface of design, then taking this locating surface as basal plane, reprocessing has with it hole and the end face of corresponding requirements, this just needs the required precision of part to be processed locating surface high, its flatness franchise value can not be greater than 0.01mm, each centerline hole and locating surface depth of parallelism franchise value, perpendicularity franchise value all can not be greater than 0.01mm, hole end surface and locating surface depth of parallelism franchise value, perpendicularity franchise value equally also all can not be greater than 0.01mm, so adopt traditional difficult processing to reach the designing requirement of part to be processed, also manufacturing schedule and efficiency have been restricted simultaneously, cannot adapt to the batch production of large-scale cutter box parts, this just needs part to be processed to reach the desired precision of design by scraping means, to guarantee the quality of part to be processed.

Summary of the invention

The utility model provides a kind of large-scale cutter box parts requirement on machining accuracy and production efficiency, simple in structure, easy to operate machining large cutter box parts special fixture of increasing substantially for solving the technical problem existing in known technology.

The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:

Machining large cutter box parts special fixture, it is characterized in that: comprise that cross section is trapezoidal plate body, be arranged on driving handle and the multiple boss for coordinating with cutter box parts that are arranged on plate body upper surface on plate body two sides, described plate body bottom surface is the lower datum level coordinating with processed cutter casing, described plate body bottom is shaped with the keyway for coordinating with the protruding key of cutter casing, described keyway left surface is the left side datum level matching with the protruding key of processed cutter casing one side, under keyway left side datum level and plate body, datum level is mutual vertical plane, under the upper datum level of described boss and plate body, datum level is the face of being parallel to each other.

The utility model can also adopt following technical scheme:

Described boss is circular bosses.

It is 40mm boss that described plate body upper surface is provided with 3 diameters, two auxiliary boss that diameter is 20mm.

Under described plate body, datum level flatness franchise value is less than 0.01mm.

Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, be that this fixture is according to part to be processed required precision and feature, determine size and the precision of this fixture by calculate and measurement, because this jig Design is reasonable, simple in structure, easy to use, therefore the manufacturing process facilitating while can be large-scale cutter box parts scraping and advanced technique, thereby can improve cutter casing part processing precision, quality and work efficiency, and can economize on the use of funds, special adaptation, produces in batches.

Brief description of the drawings

Fig. 1 is the utility model fixture schematic diagram;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is cutter box parts schematic diagram;

Fig. 5 is use schematic diagram of the present utility model.

In figure: 1, plate body; 2, circular bosses; 3, driving handle; 4, keyway; 4-1, keyway left side datum level; 5, lower datum level; 6, auxiliary boss; 7, the protruding key of cutter casing; 8, cutter casing upper surface; 9, axis hole A; 10, axis hole B; 11, cutter casing lower surface; 12, axis hole C; 100, cutter casing; 200, scraping flat board.

Detailed description of the invention

For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1-Fig. 3, machining large cutter box parts special fixture, comprises that cross section is trapezoidal plate body 1, is arranged on the driving handle 3 on plate body two sides and is arranged on multiple boss for coordinating with cutter box parts of plate body upper surface.Described plate body bottom surface is the lower datum level 5 coordinating with processed cutter casing, be shaped with the keyway 4 for coordinating with the protruding key 7 of cutter casing in described plate body bottom, described keyway left surface is the left side datum level 4-1 matching with processed cutter casing tongue one side, under keyway left side datum level and plate body, datum level 5 is mutual vertical plane, and under the upper datum level of described boss and plate body, datum level is the face of being parallel to each other.

In the present embodiment, described boss is circular bosses.

In the present embodiment, it is the auxiliary boss 6 that 2, two diameters of 40mm circular bosses are 20mm that described plate body upper surface is provided with 3 diameters.

In the present embodiment, under described plate body, datum level flatness franchise value is less than 0.01mm.

In order to reduce error, reduce difficulty of processing, become principle simultaneously in plate body upper surface according to 3, be provided with the upper datum level of three 40mm circular bosses, 2 composition, its three boss table tops require in same plane, and described three boss table tops and lower datum level 5 are the face of being parallel to each other, its depth of parallelism franchise value is controlled in 0.008mm, to guarantee the precision of this fixture, because the precision of this fixture is guaranteed, so the precision of processed cutter box parts and quality are also guaranteed.

Operation principle of the present utility model is:

Refer to Fig. 4 and Fig. 5, first the lower surface 11 of processed cutter casing 100 is placed on scraping flat board 200, then this fixture is placed on cutter casing, the upper surface 8 of facing-up cutter casing, the left side of the protruding key 7 of cutter casing, because this clamp precision requires high, can ensure that like this between the upper surface 8 of cutter casing 100 and the protruding key of cutter casing left side, perpendicularity franchise value is not more than 0.01mm, because upper surface 8 and the protruding key of cutter casing left side are the desired locating surface of design, ensureing on the basis of upper surface 8 and the protruding key of cutter casing left side precision, and then can ensure the axis hole A9 of upper surface 8 and the protruding key of cutter casing left side related request, axis hole B10, the precision of axis hole C12 and cutter casing lower surface 11, to meet the designing requirement of drawing.

The embodiment describing in the utility model accompanying drawing is exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.

Claims

1. a machining large cutter box parts special fixture, it is characterized in that: comprise that cross section is trapezoidal plate body, be arranged on driving handle and the multiple boss for coordinating with cutter box parts that are arranged on plate body upper surface on plate body two sides, described plate body bottom surface is the lower datum level coordinating with processed cutter casing, described plate body bottom is shaped with the keyway for coordinating with the protruding key of cutter casing, described keyway left surface is the left side datum level matching with the protruding key of processed cutter casing one side, under keyway left side datum level and plate body, datum level is mutual vertical plane, under the upper datum level of described boss and plate body, datum level is the face of being parallel to each other.

2. machining large cutter box parts special fixture according to claim 1, is characterized in that: described boss is circular bosses.

3. machining large cutter box parts special fixture according to claim 2, is characterized in that: it is 40mm boss that described plate body upper surface is provided with 3 diameters, two auxiliary boss that diameter is 20mm.

4. machining large cutter box parts special fixture according to claim 1, is characterized in that: under described plate body, datum level flatness franchise value is less than 0.01mm.