阅读说明：本技术 一种圆弧底面工件的装夹工装及方法 (Clamping tool and method for arc-bottom workpiece ) 是由 廖基跃 杨凯 于 2019-10-31 设计创作，主要内容包括：本发明涉及工装夹具领域,具体公开了一种圆弧底面工件的装夹工装及方法,包括下模和上模,所述的下模上设置有上模安装腔,所述上模安装腔的底部设置有工件放置腔,所述工件放置腔的两端设置有弹簧片安装及让位槽,所述弹簧安装及让位槽内设置有弹簧片,所述的上模置于所述上模安装腔内,所述下模的工件放置腔的两侧设置有若干螺纹孔,所述上模设置有与螺纹孔一一对应的安装孔,所述上模和下模通过螺钉穿过安装孔与下模上的螺纹孔螺纹连接进行固定。本发明的优点是通过对工件底面施力,保证工件加工优先与上模贴合,并通过模型的结构,保证工件加工面处于水平面。(The invention relates to the field of tool fixtures, and particularly discloses a clamping tool and a clamping method for a workpiece with an arc bottom surface. The die has the advantages that the bottom surface of the workpiece is forced, so that the workpiece is guaranteed to be preferentially attached to the upper die during machining, and the machined surface of the workpiece is guaranteed to be in a horizontal plane through the structure of the die.)

1. The utility model provides a clamping frock of circular arc bottom surface work piece which characterized in that: including lower mould (1) and last mould (2), lower mould (1) on be provided with mould installation cavity (9), the bottom of going up mould installation cavity (9) is provided with the work piece and places chamber (11), the both ends that the chamber (9) was placed to the work piece are provided with spring leaf installation and groove of stepping down (8), be provided with spring leaf (7) in spring installation and the groove of stepping down (8), last mould (2) arrange in go up in the mould installation cavity (9).

2. The clamping tool for the circular arc bottom surface workpiece according to claim 1, characterized in that: and notches (12) are arranged at two ends of the lower die (1) and used for limiting the upper die (2).

3. The clamping tool for the circular arc bottom surface workpiece according to claim 1, characterized in that: the both sides that chamber (11) were placed to the work piece of lower mould (1) are provided with a plurality of screw holes (10), it is provided with the mounting hole with screw hole (10) one-to-one to go up mould (2), it passes screw hole (10) threaded connection on mounting hole and lower mould (1) and fixes to go up mould (2) and lower mould (1) through screw (3).

4. The clamping tool for the circular arc bottom surface workpiece according to claim 1, characterized in that: the side surface of the upper die mounting cavity (9) of the lower die (1) is a positioning surface.

5. The clamping tool for the circular arc bottom surface workpiece according to claim 1, characterized in that: go up to be provided with on mould (2) and be used for carrying out the processing mouth (5) that process to the work piece, processing mouth (5) and lower mould (1) on the work piece place chamber (11) and correspond, the upper end of processing mouth (5) is the inclined plane.

6. The clamping tool for the circular arc bottom surface workpiece according to claim 1, characterized in that: and protruding parts (4) are arranged at two ends of the upper die (2).

7. The method for clamping the clamping tool for the arc-shaped bottom surface workpiece according to any one of 1-6 is characterized in that: the method comprises the following steps:

s1, placing the spring piece (7) into a spring piece mounting and abdicating groove (8) of the lower die (1);

s2, placing two ends of the arc bottom surface of the workpiece (6) on the spring piece (7), wherein the front surface of the workpiece (6) to be processed faces upwards;

s3, vertically installing the upper die (2) into the lower die (1) along the inner cavity positioning surface of the lower die (1), and placing the protruding part (4) of the upper die (2) into the notch (12) arranged at the two ends of the lower die (1);

s4, the lower side plane of the upper die (2) is in contact with the front side of the workpiece (6) to be processed and is supported by the spring piece (7), the bottom surface of the workpiece (6) is stressed to enable the processing front side to be flat to the lower side plane of the upper die (2), the upper die (2) continues to vertically press downwards until the arc bottom surface of the workpiece (6) is pressed to be close to the bottom arc positioning surface of the workpiece placing cavity (11) of the lower die (1), and the spring piece (7) is pressed into the spring piece mounting and abdicating groove (8);

s5, connecting the upper die (2) and the lower die (1) together by using a screw (3), and fixing the workpiece (6) in a tool;

s6, clamping the tool on the machine tool through the clamping position, and ensuring that the machining front face is in the horizontal direction and the machining cutter is perpendicular to the machining front face through the parallelism between the clamping position and the inner cavity positioning face and the limit relation between the upper die and the inner cavity.

Technical Field

The invention relates to a tool clamp, in particular to a clamping tool and a clamping method for a workpiece with an arc bottom surface.

Background

The bottom surface positioning surface of the common fixture is a plane, and a workpiece with a circular arc bottom surface is in line contact with the bottom surface positioning surface of the common fixture, so that the fixture is difficult to stably position, is not well clamped and fixed, and particularly cannot ensure that the front surface of the machined workpiece is in a water surface state, namely the front surface of the machined workpiece is perpendicular to a machining cutter, thereby being incapable of ensuring the perpendicularity of the machined side wall and the front surface.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a clamping tool and a clamping method for a workpiece with an arc bottom surface, which can better ensure the repeated stable positioning and clamping of the workpiece, and particularly can ensure that the machined front surface can be better vertical to a machined cutter, thereby effectively ensuring that the machined front surface has better verticality with the machined side wall.

The purpose of the invention is realized by the following technical scheme: the utility model provides a clamping frock of circular arc bottom surface work piece, includes lower mould and last mould, the lower mould on be provided with the mould installation cavity, the bottom of going up the mould installation cavity is provided with the work piece and places the chamber, the both ends that the chamber was placed to the work piece are provided with the spring leaf installation and step down the groove, the spring installation and step down the inslot and be provided with the spring leaf, last mould arrange in go up the mould installation cavity.

Specifically, the both ends of lower mould are provided with the breach and are used for spacing to last mould.

Specifically, the both sides in chamber are placed to the work piece of lower mould are provided with a plurality of screw holes, go up the mould and be provided with the mounting hole with the screw hole one-to-one, go up mould and lower mould and pass the mounting hole and fix with the screw hole threaded connection on the lower mould through the screw.

Specifically, the side surface of the upper die mounting cavity of the lower die is a positioning surface.

Specifically, be provided with the processing mouth that is used for carrying out the processing to the work piece on going up the mould, the processing mouth is placed the chamber with the work piece on the lower mould and is corresponded, the upper end of processing mouth is the inclined plane.

Specifically, the two ends of the upper die are provided with protruding parts.

A clamping method for a workpiece with an arc bottom surface comprises the following steps:

s1, loading the spring piece into a spring piece mounting and abdicating groove of the lower die;

s2, placing the two ends of the arc bottom surface of the workpiece on spring plates, wherein the front surface of the workpiece to be processed faces upwards;

s3, vertically installing the upper die into the lower die along the inner cavity positioning surface of the lower die, and placing the protruding part of the upper die into the notches arranged at the two ends of the lower die;

s4, the large surface of the upper die is in contact with the front surface of the workpiece to be processed and is supported by the spring piece, the bottom surface of the workpiece is stressed to enable the processing front surface to be flatly attached to the large surface of the upper die, the upper die continues to vertically press downwards until the circular arc bottom surface of the workpiece and the circular arc positioning surface of the lower die are pressed to be attached, and the spring piece is pressed into the spring piece mounting and abdicating groove;

s5, connecting the upper die with the lower die together by using screws, and fixing the workpiece in the tool;

s6, clamping the tool on the machine tool through the clamping position, and ensuring that the machining front face is in the horizontal direction and the machining cutter is perpendicular to the machining front face through the parallelism between the clamping position and the inner cavity positioning face and the limit relation between the upper die and the inner cavity.

The invention has the following advantages:

1. the workpiece is guaranteed to be preferentially attached to the upper die in machining through force application to the bottom surface of the workpiece, and the machined surface of the workpiece is guaranteed to be located on the horizontal plane through the structure of the model.

2. The spring leaf of the component and the installation and abdication structure of the spring leaf in the lower die are designed, so that the spring leaf plays a role in applying force to the bottom surface of the workpiece in advance when the workpiece is installed and is flatly attached to the large surface of the upper die.

3. An inclined plane opening is designed in the upper die, so that machining of a machining position and convenience in chip removal are guaranteed.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a cross-sectional view taken along line C of FIG. 2;

in the figure: 1-lower die, 2-upper die, 3-screw, 4-protrusion, 5-processing port, 6-workpiece, 7-spring piece, 8-spring piece mounting and abdicating groove, 9-workpiece placing cavity, 10-threaded hole, 11-workpiece placing cavity and 12-notch.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, a clamping frock of circular arc bottom surface work piece, includes lower mould 1 and last mould 2, lower mould 1 on be provided with mould installation cavity 9, the bottom of going up mould installation cavity 9 is provided with the work piece and places chamber 11, the both ends that the chamber 9 was placed to the work piece are provided with spring leaf installation and the groove 8 of stepping down, spring installation and the inslot 8 of stepping down are provided with spring leaf 7, last mould 2 arrange in go up in the mould installation cavity 9.

Furthermore, gaps 12 are arranged at two ends of the lower die 1 and used for limiting the upper die 2.

Further, the both sides in chamber 11 are placed to the work piece of lower mould 1 are provided with a plurality of screw holes 10, it is provided with the mounting hole with screw hole 10 one-to-one to go up mould 2, it fixes to go up mould 2 and lower mould 1 through screw 3 and pass the mounting hole and screw hole 10 threaded connection on the lower mould 1.

Further, the side surface of the upper die mounting cavity 9 of the lower die 1 is a positioning surface.

Further, the upper die 2 is provided with a processing opening 5 for processing a workpiece, the processing opening 5 corresponds to the workpiece placing cavity 11 on the lower die 1, and the upper end of the processing opening 5 is an inclined plane.

Furthermore, the two ends of the upper die 2 are provided with the protruding parts 4, so that the upper die 1 and the lower die 2 are convenient to detach, and the overall strength of the upper die 2 is enhanced.

A clamping method for a workpiece with an arc bottom surface comprises the following steps:

s1, loading the spring piece 7 into the spring piece mounting and abdicating groove 8 of the lower die 1;

s2, placing the two ends of the arc bottom surface of the workpiece 6 on the spring piece 7, wherein the front surface of the workpiece 6 to be processed faces upwards;

s3, vertically installing the upper die 2 into the lower die 1 along the inner cavity positioning surface of the lower die 1, and placing the protruding parts 4 of the upper die 2 into the notches 12 arranged at the two ends of the lower die 1;

s4, the large surface of the upper die 2 is in contact with the front surface of the workpiece 6 to be processed and is supported by the spring leaf 7, the bottom surface of the workpiece 6 is stressed to enable the processing front surface to be flat with the large surface of the upper die 2, the upper die 2 continues to vertically press downwards until the arc bottom surface of the workpiece 6 is pressed to be flat with the arc positioning surface of the lower die 1, and the spring leaf 7 is pressed into the spring leaf mounting and abdicating groove 8;

s5, connecting the upper die 2 and the lower die 1 together by using the screw 3, and fixing the workpiece 6 in the tool;

s6, clamping the tool on the machine tool through the clamping position, and ensuring that the machining front face is in the horizontal direction and the machining cutter is perpendicular to the machining front face through the parallelism between the clamping position and the inner cavity positioning face and the limit relation between the upper die and the inner cavity.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.