Technical equipment for machining multi-hole-site micro-hole with angle through electric spark

Abstract

The utility model discloses technological equipment for machining a multi-hole-site micro-hole with an angle through electric spark, which belongs to the technical field of electric spark machining and manufacturing and comprises a base, an inclined plane is arranged on one side of the bottom of the base, and the inclined plane abuts against a machining platform. A plurality of pin holes are circumferentially formed in the bottom surface of the positioning faceplate, pins corresponding to the pin holes are fixedly connected to the top surface of the base, and a stud is fixedly connected to the center of the top surface of the positioning faceplate; a workpiece to be machined abuts against the top face of the positioning faceplate. And the compression nut is in threaded connection with the stud and is used for compressing the workpiece on the positioning faceplate. The electric spark forming device can be used for electric spark forming machining of angled and multi-hole-site deep and long micro holes in various metal materials difficult to machine, and has the advantages of being accurate in positioning, convenient to operate, safe, reliable and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to EDM (Electric Discharge Machining) manufacturing technical field, especially relates to a kind of process equipment of EDM multiple hole position with angle tiny hole. BACKGROUND

[0002] EDM (Electric Discharge Machining) is a kind of processing method using electric heat energy, its basic principle is that impulse spark discharge is continuously generated between tool and workpiece in processing process, and metal is removed by high temperature generated locally and momentarily during spark discharge.For some difficult-to-machine metal materials such as high-temperature alloy and hard alloy, EDM is almost relied on to complete processing of some special structures, especially for slender and tiny holes.With the development of modern manufacturing technology, the design of various components tends to be more and more precise, and the types of various deep and long holes are also increasing, so traditional mechanical processing cannot meet the production needs, and the role of EDM gradually emerges.

[0003] During EDM machine tool processing, parts with radial rotary holes are often encountered, and the holes have a certain inclination angle, such as multiple hole position slender inclined hole, and the existing single-axis EDM (Electric Discharge Machining) numerical control machine tool can only process small holes perpendicular to base surface, and cannot complete processing of such parts, so multi-axis equipment (such as five-coordinate numerical control EDM machine tool) is needed to realize processing, and the processing equipment is limited, and the cost of multi-axis equipment is also relatively high.

[0004] In addition, due to the working principle of EDM (Electric Discharge Machining), on the one hand, the processing speed of EDM is slow, and the cost and period are difficult to meet the production rhythm;On the other hand, the processing precision of EDM is lower than that of mechanical processing, and high-precision processing requirements cannot be realized when processing inclined hole, so process equipment is needed to improve and optimize to improve processing speed and precision as much as possible.

[0005] Therefore, a kind of process equipment of EDM multiple hole position with angle tiny hole is provided. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides a kind of process equipment of EDM multiple hole position with angle tiny hole.

[0007] To achieve the above purpose, the utility model provides a kind of process equipment of EDM multiple hole position with angle tiny hole, comprising:

[0008] Base, the bottom side of the base is provided with an inclined surface, and the inclined surface is abutted on the processing platform.

[0009] A positioning disc is provided with a plurality of pin holes in the bottom surface, and a pin is fixedly connected to the top surface of the base corresponding to the pin hole; and the workpiece to be machined is abutted to the top surface of the positioning disc.

[0010] A compression nut is threadedly connected to the stud for compressing the workpiece on the positioning disc.

[0011] Preferably, the base is provided with a groove on the side surface for fixing the base on the machining platform.

[0012] Preferably, the base is provided with a recess hole in the center of the bottom, and the center of the top surface of the base is provided with a boss corresponding to the recess hole.

[0013] Preferably, the top surface of the positioning disc is provided with a protrusion corresponding to the workpiece contact surface.

[0014] Preferably, the angle of the inclined surface is between 0° and 80°.

[0015] Preferably, the compression nut is abutted with the workpiece through a cover plate.

[0016] Preferably, the plurality of pin holes are uniformly distributed on the positioning disc.

[0017] Compared with the prior art, the positioning disc has the following advantages and technical effects:

[0018] The compression nut compresses the workpiece on the top surface of the positioning disc and is fixed, and the workpiece can be rotated by rotating the positioning disc, so that the pin holes in different positions are opposite to the head of the electric spark puncher. When the positioning disc is rotated, the different pin holes on the positioning disc are inserted with the pins to quickly position the workpiece to be machined, avoiding repeated positioning and alignment when machining multiple small holes, solving the problems of difficult alignment, low efficiency, and difficult control of precision, and improving the machining efficiency. The insertion mode makes the positioning disc and the base easy to install and disassemble. When machining multiple small holes at different angles on the same product, the positioning disc is only needed to be rotated and positioned by the pin, and the operation is convenient. The inclined surface is abutted to the machining platform, the inclination angle of the workpiece can be adjusted, the inclination angle of the angled hole is compensated, the angled hole can be converted into a straight hole for machining, and the product machining process can be converted from multi-axis equipment to single-axis equipment after conversion, reducing the equipment requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings, and their description, are presented to explain the application and not to limit or define the application undesirably. In the drawings:

[0020] Figure 1The utility model discloses a process equipment structure schematic diagram of electric spark machining multi-hole position with angle micro -hole.

[0021] In the figure: 1, base; 2, pin; 3, positioning chuck; 4, cover plate; 5, compression nut; 6, stud; 7, inclined surface; 8, groove; 9, pin hole. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0023] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0024] Refer to Figure 1 As shown in the figure, the embodiment provides a process equipment of electric spark machining multi-hole position with angle micro -hole, comprising:

[0025] Base 1, the bottom side of base 1 is provided with inclined surface 7, and the inclined surface 7 is abutted on the machining platform;

[0026] Positioning chuck 3, a plurality of pin holes 9 are circumferentially arranged on the bottom surface of positioning chuck 3, and the pin 2 is fixedly connected to the top surface of base 1 corresponding to the pin hole 9; the stud 6 is fixedly connected to the top surface center of positioning chuck 3; and the workpiece to be machined is abutted on the top surface of positioning chuck 3.

[0027] Compression nut 5, the compression nut 5 is threadedly connected with the stud 6, and is used for compressing the workpiece on the positioning chuck 3.

[0028] The pressing nut 5 presses the workpiece against the top surface of the positioning disc and is fixed, and the workpiece can be rotated by rotating the positioning disc 3, so that the pin holes 9 at different positions are aligned with the head of the electric spark puncher. When the positioning disc 3 is rotated, the different pin holes 9 on the positioning disc 3 are inserted with the pins 2, so that the rapid positioning of the hole to be processed can be realized, and the repeated positioning and alignment during the processing of multiple position small holes is avoided. The problems of difficult alignment, low efficiency and difficult control of precision are solved, and the processing efficiency is improved. The insertion mode makes the positioning disc 3 and the base 1 easy to install and disassemble. When processing multiple small holes at different angles on the same product, only the positioning disc 3 is rotated and positioned by the pins 2, and the operation is convenient. The inclined surface 7 is abutted on the processing platform, the inclination angle of the workpiece can be adjusted, the inclination angle of the angle inclined hole is compensated, the inclined hole can be converted into a straight hole for processing, and the product processing process can be converted from multi-axis equipment to single-axis equipment, thereby reducing the equipment requirements.

[0029] Further, the inclination angle can be adjusted according to the size of the hole angle, so that the inclined surface 7 compensates for the hole angle, and the hole is located in the vertical processing position, which is convenient for single-axis equipment processing.

[0030] Further optimization scheme, the base 1 side is provided with a groove 8, and the groove 8 is used for fixing the base 1 on the processing platform.

[0031] The groove 8 can be inserted with the pin 2, and the screw can be threadedly connected. The pin 2 is linked or the screw is connected in a threaded manner, and the specific fixing manner is not limited. Any means that can fix the base 1 and the processing platform is within the protection scope of the application.

[0032] Further optimization scheme, the bottom center of the positioning disc 3 is provided with a recess, and the top center of the base 1 is provided with a protrusion corresponding to the recess.

[0033] The protrusion and the recess are matched, which is convenient for aligning and positioning the positioning disc 3 when the positioning disc 3 is connected with the base, and is also convenient for the butt joint of the pin hole 9 on the positioning disc 3 and the pin 2.

[0034] Further optimization scheme, the top surface of the positioning disc 3 is provided with a protrusion corresponding to the workpiece contact surface.

[0035] The protrusion on the positioning disc 3 is used for positioning cooperation with the workpiece.

[0036] Further optimization scheme, the angle of the inclined surface 7 is between 10° and 80°.

[0037] Further optimization scheme, the pressing nut 5 and the workpiece are abutted with the cover plate 4.

[0038] The pressing nut 5 will generate a large pressure on the workpiece surface during the pressing process, the cover plate 4 can uniformly distribute the pressure of the pressing nut 5 on the workpiece surface, plays a protection role, avoids that the edge of the pressing nut 5 causes damage to the workpiece surface, and produces scratches or indentations.

[0039] Further optimization scheme, a plurality of pin holes 9 are uniformly distributed on the positioning disc 3.

[0040] When the pin holes 9 are uniformly distributed on the positioning disc 3, the positioning disc 3 can be regarded as a dividing device, the free division of the workpiece in the circumferential direction is realized, and the division accuracy can be freely adjusted by the number of pin holes 9.

[0041] The specific use method of the above-mentioned process equipment for electric spark machining of a plurality of small holes with small angles is as follows:

[0042] Step one: adopt corresponding fasteners, connect and fix the base 1 with the machining platform through two recesses 8 at the bottom of the base 1;

[0043] Step two: engage the boss above the base 1 with the recess below the positioning disc 3, and find the round runout and straightness of the surface of the positioning disc 3 to be within 0.01 mm after fixing;

[0044] Step three: place the workpiece to be machined on the positioning disc 3, and press the cover plate 4 and fix it through the pressing nut 5 and the stud 6, at this time, the inclination angle of the small hole of the workpiece has been compensated and adjusted through the inclined surface 7 of the base 1, and the subsequent machining can be processed as a straight hole;

[0045] Step four: before the preparation of the electric spark electrode wire, find the position of any small hole on the workpiece by adjusting the butt joint of the pin 2 on the base 1 and the corresponding pin hole 9 on the positioning disc 3;

[0046] Step five: start the numerical control program to complete the machining of the small hole;

[0047] Step six: after the machining of the small hole is completed, remove the positioning pin 2 and adjust the positioning disc 3 to accurately divide at a fixed angle, and then tighten the positioning pin 2 after positioning;

[0048] Step seven: repeat steps five to six to complete the batch rapid positioning and machining of the small holes, until the inclined machining of all hole positions is completed, and the product is removed.

[0049] The details of the utility model not described are conventional technical means known to those skilled in the art.

[0050] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0051] The above-described embodiments are merely preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope defined by the claims of the utility model.

Claims

1. An electric discharge machining process equipment for machining a small hole with an angle in a porous site, characterized in that, Include: Base (1), the bottom side of the base (1) is provided with an inclined surface (7), the inclined surface (7) is abutted on the processing platform; Positioning chuck (3), the bottom surface of the positioning chuck (3) is provided with a plurality of pin holes (9) in circumference, the top surface of the base (1) is fixedly connected with a pin (2) corresponding to the pin hole (9), and the top surface of the positioning chuck (3) is fixedly connected with a stud (6) in the center; The workpiece to be processed is abutted on the top surface of the positioning chuck (3); The compression nut (5) is threadedly connected with the stud (6), and is used for compressing the workpiece on the positioning chuck (3).

2. The process equipment for electric discharge machining of a small hole with an angle of a porous site according to claim 1, characterized in that: The side surface of the base (1) is provided with a groove (8), and the groove (8) is used for fixing the base (1) on the processing platform.

3. The process equipment for electric discharge machining of a small hole with an angle according to claim 1, characterized in that: The bottom center of the positioning chuck (3) is provided with a recess, and the top center of the base (1) is provided with a boss corresponding to the recess.

4. The process equipment for electric discharge machining of a small hole with an angle according to claim 1, characterized in that: The top surface of the positioning chuck (3) is provided with a protrusion corresponding to the workpiece contact surface.

5. The process equipment for electric discharge machining of a small hole with an angle according to claim 1, characterized in that: The angle of the inclined surface (7) is between 10°-80°.

6. The process equipment for electric discharge machining of a small hole with an angle of a porous site according to claim 1, characterized in that: The compression nut (5) and the workpiece are abutted with a cover plate (4).

7. The process equipment for electric discharge machining of a small hole with an angle according to claim 1, characterized in that: A plurality of pin holes (9) are uniformly distributed on the positioning chuck (3).

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