CN215239408U

CN215239408U - Cutting and converting tool for inner wall vertical boss

Info

Publication number: CN215239408U
Application number: CN202121364922.2U
Authority: CN
Inventors: 李涛; 姚洁; 冯建国
Original assignee: Shaanxi Dingxin Microwave Technology Co ltd
Current assignee: Shaanxi Dingxin Microwave Technology Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2021-12-21
Anticipated expiration: 2031-06-19

Abstract

The utility model discloses a perpendicular boss cutting conversion frock of inner wall belongs to the machining field, and this frock is including installing fastening disk, locating pin and the steering wheel on the work piece, and this work piece is thin wall spare, and comprises base, boss arm and top ring, and the structural feature of this frock make full use of work piece uses fastening disk, locating pin and steering wheel etc. to fix the work piece to utilize locating piece and the locating plate of steering wheel bottom, realize the specific angular adjustment of work piece. Compared with the existing clamping and fixing method, the tool cannot cause stress deformation of the workpiece, is convenient for adjusting the angle of the workpiece, is particularly suitable for machining the boss arm, is accurate in positioning, and can remarkably improve the machining quality and the machining efficiency.

Description

Cutting and converting tool for inner wall vertical boss

Technical Field

The utility model belongs to the machining field especially relates to a perpendicular boss cutting conversion frock of inner wall.

Background

In the machining process of mechanical parts, the positioning and fixing of workpieces are of great importance, and the premise of ensuring the machining precision is provided. In particular, for the processing of some special parts, in order to ensure the processing precision and angle, a great deal of effort is needed to find the processing reference, and the yield is not high. For example: aiming at the processing of the boss arm of the thin-wall workpiece, because the boss arm has a certain angle and the number is a plurality of, the boss arm is possibly stressed and deformed by adopting a common clamping scheme and needs to be disassembled and assembled for many times, the cylindricity of the product is easy to change, the outer diameter precision size and form and position tolerance can also change, and waste products are generated. In addition, the clamping times are increased, and the production efficiency is also influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a perpendicular boss cutting conversion frock of inner wall, this frock make full use of work piece's structural feature uses fastening disc, locating pin and steering wheel etc. to fix the work piece to utilize locating piece and the locating plate of steering wheel bottom, realize the specific angular adjustment of work piece. Compared with the existing clamping and fixing method, the tool cannot cause stress deformation of the workpiece, is convenient for adjusting the angle of the workpiece, is particularly suitable for machining the boss arm, is accurate in positioning, and can remarkably improve the machining quality and the machining efficiency.

The utility model discloses an above-mentioned problem is solved to following technical means:

the utility model provides a perpendicular boss cutting conversion frock of inner wall, is including installing fastening disk, locating pin and the steering wheel on the work piece, wherein: the workpiece is a thin-wall part and consists of a base, boss arms and a top ring, the boss arms are vertically arranged on the base and are used for connecting the base and the top ring, a plurality of machining holes are formed in the boss arms, a bottom hole is formed in the center of the base, and a side hole is formed in the eccentric position of the base; the fastening disc is arranged on one side of the bottom hole, the steering disc is arranged on the other side of the bottom hole, and the fastening disc is arranged on the steering disc through a fastening screw and fixedly connects the workpiece with the steering disc; the positioning pin penetrates through the side hole of the workpiece and is arranged in the positioning hole of the steering wheel; a positioning block is arranged at the bottom of the steering wheel and is of a cuboid structure; the locating piece is installed on the locating plate, and the specific angle adjustment of the workpiece can be realized through rotating the locating piece.

Preferably, the positioning plate is provided with positioning steps for limiting and positioning the block, mounting holes are formed in two sides of the positioning plate, and positioning screws for connecting the base are mounted in the mounting holes.

Preferably, the fixing clamp includes an L-shaped clamping plate, a fixing bolt and a fixing nut, wherein: a transverse arm of the L-shaped clamping plate is provided with a waist-shaped hole, and a vertical arm of the L-shaped clamping plate directly contacts the base; the top of the fixing bolt is arranged in the waist-shaped hole through a fixing nut, and the bottom of the fixing bolt is arranged on the base through threads.

The utility model discloses a perpendicular boss cutting conversion frock of inner wall has following beneficial effect:

the tool comprises a fastening disc, a positioning pin and a steering wheel which are arranged on a workpiece, wherein the workpiece is a thin-wall part and consists of a base, a boss arm and a top ring, the tool makes full use of the structural characteristics of the workpiece, the workpiece is fixed by using the fastening disc, the positioning pin, the steering wheel and the like, and the specific angle adjustment of the workpiece is realized by using the positioning block and the positioning plate at the bottom of the steering wheel. Compared with the existing clamping and fixing method, the tool cannot cause stress deformation of the workpiece, is convenient for adjusting the angle of the workpiece, is particularly suitable for machining the boss arm, is accurate in positioning, and can remarkably improve the machining quality and the machining efficiency.

Drawings

The invention is further described with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the front structure of the tool of the present invention;

fig. 4 is a schematic view of the back structure of the tool of the present invention;

fig. 5 is a schematic view of the tool positioning structure of the present invention.

In the figure, 1-workpiece, 101-base, 102-boss arm, 103-top ring, 104-processing hole, 105-bottom hole, 106-side hole, 2-fastening disc, 201-large ring, 202-small ring, 3-fastening screw, 4-positioning pin, 5-steering wheel, 501-positioning hole, 6-positioning block, 7-positioning plate, 701-positioning step, 702-mounting hole, 8-positioning screw, 9-fixing clamp, 901-L-shaped clamping plate, 902-fixing bolt and 903-fixing nut.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. 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 of the present invention, "a plurality" means two or more unless otherwise specified.

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

As shown in fig. 1 to 5, the inner wall vertical boss cutting and converting tool includes a fastening disc 2, a positioning pin 4 and a steering wheel 5 installed on a workpiece 1, the workpiece 1 is a thin-wall part and is composed of a

base

101, 3 boss arms 102 and a top ring 103, the 3 boss arms 102 are vertically arranged on the base 101 and are used for connecting the base 101 and the top ring 103, grooves and windows for installation or connection are arranged on the top ring 103, a plurality of processing holes 104 are arranged on the boss arms 102, a bottom hole 105 is arranged in the center of the base 101, a side hole 106 is arranged in an eccentric position of the base 101, and specifically, since the number of the boss arms 102 is multiple and the angle is specific, in order to improve the processing quality and the processing efficiency of the boss arms 102, the fastening disc 2, the positioning pin 4 and the steering wheel 5 are required to be used for positioning.

In this embodiment, the fastening disc 2 is installed on one side of the bottom hole 105, the steering wheel 5 is installed on the other side of the bottom hole 105, the fastening disc 2 is installed on the steering wheel 5 through the fastening screw 3 and fixedly connects the workpiece 1 with the steering wheel 5, specifically, the fastening disc 2 comprises a large ring 201 and a small ring 202 which are different in diameter, the large ring 201 serves as a cover body and is used for limiting the movement of the bottom hole 105, the outer wall of the small ring 202 is in clearance fit or transition fit with the inner wall of the bottom hole 105, meanwhile, the positioning pin 4 penetrates through the side hole 106 of the workpiece 1 and is installed in the positioning hole 501 of the steering wheel 5, and at the moment, the position of the workpiece 1 can be completely limited by using two fixing points.

It should be noted that the bottom of the steering wheel 5 is provided with a positioning block 6, the positioning block 6 is of a cuboid structure, the positioning block 6 is installed on the positioning plate 7, the specific angle adjustment of the workpiece 1 can be realized by rotating the positioning block 6, specifically, a positioning step 701 for limiting the positioning block 6 is arranged on the positioning plate 7, mounting holes 702 are formed in two sides of the positioning plate 7, and positioning screws 8 for connecting bases are installed in the mounting holes 702. In the figure, the fixing jig 9 includes an L-shaped clamp plate 901, a fixing bolt 902, and a fixing nut 903, in which: a cross arm of the L-shaped clamping plate 901 is provided with a waist-shaped hole, and a vertical arm of the L-shaped clamping plate 901 is directly contacted with the base; the top of the fixing bolt 902 is mounted in the kidney-shaped hole by a fixing nut 903, and the bottom of the fixing bolt 902 is mounted on the base by a thread.

In this example, there are two sets of 3 × 2 boss arms on the inner wall of the product, the two sets of boss arms are parallel to and perpendicular to the other set of boss, the form and position tolerances are less than 0.015, and the tip angle of each boss arm needs to be back-gouged to maintain the sharp edge. At present, the wire cutting processing method is the best mode. According to traditional processing mode to the plane pressure presss from both sides the work piece on the right-hand member, after a set of boss was accomplished in the cutting, when carrying out 90 conversion cutting other two sets of bosses, the following problem appears: clamping is difficult, after 90 degrees of clamping and replacing, the clamped contact surface is arc-shaped, the position degree after clamping is difficult to determine, and the error is large. The verticality of the vertical boss group cannot be guaranteed, and the rejection rate is high. Utilize the perpendicular boss cutting conversion frock of this inner wall, the concrete operation is as follows: 1) and fixing the positioning plate on one side of a working table of the linear cutting equipment by using a phi 6.5 hole, and correcting the reference surface. 2) After the outer diameter of the steering wheel phi 70 is matched with the product hole, a positioning pin is inserted. 3) And combining and fastening the product and the steering wheel by using a fastening plate and a fastening screw. 4) One side of the steering wheel in the horizontal direction of 60 multiplied by 60 is attached to the step surface of the positioning plate. The vertical direction of the clamp 60 x 60 (universal clamping piece), upper and lower two groups of 3 x 2 bosses and shapes. 5) After the previous step, the steering wheel is turned to 90 degrees, one side of the steering wheel in the vertical direction of 60 multiplied by 60 is attached to the step surface of the positioning plate, the horizontal direction of 60 multiplied by 60 is pressed (a universal clamping piece), and the other group of bosses and the shape of 3 multiplied by 2 are cut. Through the steps, the online cutting equipment completes the processing of the 3 multiplied by 2 lug boss arm groups at three positions of the inner wall of the product. This frock main function is the cutting of conversion 90, has guaranteed two sets of parallel backs of corresponding boss group (a clamping is accomplished), to the perpendicular requirement of another group boss group, constitutes simply moreover, convenient operation, fixes a position accurately, and the product percent of pass promotes to 100% to production efficiency has been improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a perpendicular boss cutting conversion frock of inner wall, its characterized in that, including installing fastening disk (2), locating pin (4) and steering wheel (5) on work piece (1), wherein:

the workpiece (1) is a thin-wall part and consists of a base (101), boss arms (102) and a top ring (103), the boss arms (102) are vertically arranged on the base (101) and are used for connecting the base (101) and the top ring (103), a plurality of machining holes (104) are formed in the boss arms (102), a bottom hole (105) is formed in the center of the base (101), and a side hole (106) is formed in the eccentric position of the base (101);

the fastening disc (2) is installed on one side of the bottom hole (105), the steering disc (5) is installed on the other side of the bottom hole (105), and the fastening disc (2) is installed on the steering disc (5) through a fastening screw (3) and fixedly connects the workpiece (1) with the steering disc (5);

the positioning pin (4) penetrates through the side hole (106) of the workpiece (1) and is arranged in a positioning hole (501) of the steering wheel (5);

a positioning block (6) is arranged at the bottom of the steering wheel (5), and the positioning block (6) is of a cuboid structure;

the positioning block (6) is arranged on the positioning plate (7), and the specific angle adjustment of the workpiece (1) can be realized by rotating the positioning block (6).

2. The inner wall vertical boss cutting and converting tool as claimed in claim 1, wherein a positioning step (701) for limiting a positioning block (6) is arranged on the positioning plate (7), mounting holes (702) are formed in two sides of the positioning plate (7), and positioning screws (8) for connecting bases are mounted in the mounting holes (702).

3. The inner wall vertical boss cutting and converting tool set forth in claim 1, further comprising a fixing clamp (9), wherein the fixing clamp (9) comprises an L-shaped clamping plate (901), a fixing bolt (902) and a fixing nut (903), wherein:

a cross arm of the L-shaped clamping plate (901) is provided with a waist-shaped hole, and a vertical arm of the L-shaped clamping plate (901) is directly contacted with the base;

the top of the fixing bolt (902) is installed in the waist-shaped hole through a fixing nut (903), and the bottom of the fixing bolt (902) is installed on the base through threads.