CN202780557U

CN202780557U - Combined fixture for bearing hole in die casting piece

Info

Publication number: CN202780557U
Application number: CN201220411136.8U
Authority: CN
Inventors: 任怀德
Original assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Current assignee: Zhuhai Runxingtai Electrical Equipment Co Ltd
Priority date: 2012-08-20
Filing date: 2012-08-20
Publication date: 2013-03-13
Anticipated expiration: 2022-08-20

Abstract

The utility model is applicable for the field of die casting processing, and provides a combined fixture for a bearing hole in a die casting piece. The combined fixture for the bearing hole in the die casting piece comprises a bottom plate, two positioning pins, three supporting columns and three clamping mechanisms, wherein one end of each positioning pin is fixedly arranged on the bottom plate; the other end of each positioning pin is in clearance fit with a blank hole of a product; the supporting columns are fixedly arranged on the bottom plate, and further arranged below three bosses far away from the edge of the processed bearing hole in the product correspondingly; and the clamping mechanisms are fixedly arranged on the bottom plate, and further located beside the bosses far away from the edge of the processed bearing hole in the product correspondingly. With the adoption of the combined fixture for the bearing hole in the die casting piece, not only can the deformation problem of a cast thin-wall product be effectively solved, but also the processing efficiency is improved; moreover, the combined fixture for the bearing hole in the die casting piece can be applied onto a processing center; the processing can be completed in one step; the structure is simple; and the manufacturing cost is low.

Description

A kind of die casting dead eye built-up jig

Technical field

The utility model belongs to the die-casting process field, relates in particular to a kind of die casting dead eye built-up jig.

Background technology

At present, the machining bearing hole need to be carried out with the processing method of machinery usually on the die casting thin-wall product, such as using lathe, milling machine, boring machine and Cutter Body Processing with Machining Center etc.But the die casting thin-wall product has easy distortion, allowance is little, material is soft, toughness and the characteristics such as pore are arranged, and at the dead eye that the die casting thin-wall product is processed, and the requirements such as high accuracy, best bright finish, little ovality and position degree be accurate are arranged.

In the prior art, adopt the machining process anchor clamps that adopt in the machining bearing hole on the die casting thin-wall product much all also to be in artificial tighten mode, efficient is not high.Simultaneously, some can't reach specification requirement because the excessive so far die casting of locating surface thin-wall product is out of shape the dead eye that causes processing easily, is difficult to realize producing in enormous quantities.

The utility model content

The utility model provides a kind of die casting dead eye built-up jig, be intended to solve to adopt machining process on the die casting thin-wall product during machining bearing hole die casting thin-wall product be out of shape easily and the low problem of working (machining) efficiency.

The utility model is achieved in that a kind of die casting dead eye built-up jig, comprising:

Base plate;

One end is fixed on the described base plate, and the blank hole of the other end and product is 2 alignment pins of matched in clearance;

Be fixed on the described base plate, and be separately positioned on the product away from 3 support columns under 3 boss at processed dead eye edge; And

Be fixed on the described base plate, and lay respectively on the product away from 3 other clamp mechanism of 3 boss at processed dead eye edge.

Further, described clamp mechanism comprises:

Be fixed on the described base plate, and lay respectively on the product away from 3 other cylinders of each boss at processed dead eye edge;

Be separately fixed on the piston rod of each cylinder, and lay respectively on the product away from 3 pressing plates directly over each boss at processed dead eye edge; And

One end is fixed on the described base plate, and the other end is respectively 3 leads of matched in clearance with each pressing plate.

Further, the top after described 3 support columns are installed is equally flat.

Further, has a kidney slot in the middle of the described pressing plate.

Further, described pressing plate firmly is connected with screw with the piston rod of cylinder.

Further, described cylinder by screwed lock on described base plate.

Die casting dead eye built-up jig in the utility model not only can solve the problem of casting thin-wall product distortion effectively, has also improved working (machining) efficiency, can be used on the machining center, and time processing puts in place, and is simple in structure, low cost of manufacture.

Description of drawings

Fig. 1 is Fig. 1 provides die casting dead eye built-up jig for the utility model structure chart.

Among the figure:

The 1-base plate;

The 2-alignment pin;

The 3-support column;

The 4-clamp mechanism:

The 41-cylinder;

The 42-pressing plate;

The 43-lead.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Referring to Fig. 1, the die casting dead eye built-up jig in the utility model comprises base plate 1, alignment pin 2, support column 3 and clamp mechanism 4.

Clamp mechanism 4 comprises cylinder 41, pressing plate 42 and lead 43.

Wherein, 2 alignment pin 2 one ends are fixed on the base plate 1, and the blank hole of the other end and product is matched in clearance.

3 support columns 3 are fixed on the base plate 1, and are separately positioned on the product under 3 boss away from processed dead eye edge.

3 clamp mechanism 4 are fixed on the base plate 1, and lay respectively on the product by 3 boss away from processed dead eye edge.

3 cylinders 41 are fixed on the base plate 1, and lay respectively on the product by each boss away from processed dead eye edge.

3 pressing plates 42 are separately fixed on the piston rod of each cylinder 41, and lay respectively on the product away from directly over each boss at processed dead eye edge.

3 lead 43 1 ends are fixed on the base plate 1, and the other end is matched in clearance with each pressing plate 42 respectively.

In the utility model, locate by the blank hole on the product with alignment pin 2 first, re-use cylinder 41 and under the guide effect of lead 43, be with dynamic pressure plate 42, and with product on match away from the support column 3 under each boss at processed dead eye edge, thereby can clamp product by clamping boss.

In the utility model, use 2 point location principles, adopt 2 alignment pins, 2 location, can make accurate positioning.Use the principles on 3 fixed planes, 3 boss away from processed dead eye edge clamp product on the product by clamping, and can avoid that product is stressed too much to be out of shape.

In the utility model, alignment pin 2 is monolateral with the gap of blank hole to be 0.05mm, accurate positioning in the time of can guaranteeing the product installation.

The top was equally flat after 3 support columns 3 were installed, and large of rear product is installed is become horizontal plane to guarantee product.

In the utility model, do a kidney slot in the middle of the pressing plate 42, lead 43 is monolateral with the gap of pressing plate 42 to be 0.2mm, and each pressing plate 42 is pressed on the support column 3 exactly, can not press in pressing plate 42 compaction process partially thereby make, evenly can not be out of shape to guarantee that product is stressed.

Pressing plate 42 firmly is connected with screw with the piston rod of cylinder 41.

Cylinder 41 need be tightened up a screw and is locked on the base plate 1.

The utility model can clamp product with the cylinder clamping of 40N.Simultaneously, also just offset the power that produces because of cutter whirling vibration in the working angles, so just can better solve the die casting thin-wall product and hold yielding problem.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a die casting dead eye built-up jig is characterized in that, described die casting dead eye built-up jig comprises:

Base plate;

2. die casting dead eye built-up jig as claimed in claim 1 is characterized in that described clamp mechanism comprises:

3. die casting dead eye built-up jig as claimed in claim 1 is characterized in that, the top after described 3 support columns are installed is equally flat.

4. die casting dead eye built-up jig as claimed in claim 2 is characterized in that, has a kidney slot in the middle of the described pressing plate.

5. die casting dead eye built-up jig as claimed in claim 2 is characterized in that, described pressing plate firmly is connected with screw with the piston rod of cylinder.

6. die casting dead eye built-up jig as claimed in claim 2 is characterized in that, described cylinder by screwed lock on described base plate.