CN104842031A - Tool for electric discharge machining of deep holes - Google Patents

Tool for electric discharge machining of deep holes Download PDF

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Publication number
CN104842031A
CN104842031A CN201510277774.3A CN201510277774A CN104842031A CN 104842031 A CN104842031 A CN 104842031A CN 201510277774 A CN201510277774 A CN 201510277774A CN 104842031 A CN104842031 A CN 104842031A
Authority
CN
China
Prior art keywords
hole
electrode bar
head
bar
described electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510277774.3A
Other languages
Chinese (zh)
Inventor
金威
朱永
黄立平
沈明强
苏爱民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HASCO KSPG Nonferrous Components Shanghai Co Ltd
Original Assignee
Kolbenschmidt Pierburg Shanghai Nonferrous Components Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kolbenschmidt Pierburg Shanghai Nonferrous Components Co Ltd filed Critical Kolbenschmidt Pierburg Shanghai Nonferrous Components Co Ltd
Priority to CN201510277774.3A priority Critical patent/CN104842031A/en
Publication of CN104842031A publication Critical patent/CN104842031A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14Making holes

Abstract

The invention provides a tool for electric discharge machining of deep holes. The tool at least comprises an electrode rod and a connecting round rod, a first axial center blind hole is formed in the tail end face of the electrode rod axially, a radial hole is formed in the head of the electrode rod radially and communicated with a first axial through hole, the connecting round rod is provided with a second axial center blind hole axially, the head of the connecting round rod is connected with the tail of the electrode rod, distance from a position where the connecting round rod is connected with the electrode rod to the head of the electrode rod is equal to designed length of a to-be-machined deep hole, and the tail of the connecting round hole is connected with an electric discharge machine. During machining, the distance from the position where the connecting round rod is connected with the electrode rod is equal to the designed length of the to-be-machined deep hole, so that convenience is brought to controlling machining depth; the head of the electrode rod is provided with the radial hole radially, so that sweeps can be smoothly discharged from the radial hole and do not need to be cleaned frequency, and time and manpower are saved greatly.

Description

Spark machined deep hole instrument
Technical field
The present invention relates to a kind of deep hole processing instrument, particularly relate to a kind of spark machined deep hole instrument.
Background technology
With reference to figure 1, insert 100 one end of cylinder body compression mod need process several Cooling Holes 101, and this Cooling Holes 101 is by arrange from outside to inside and coaxial exit orifice 1011 and deep hole 1012 are formed, and the diameter of exit orifice 1011 is greater than deep hole 1012 diameter; Deep hole 1012 diameter is 5mm, and length is 60mm.When adopting spark machined Cooling Holes 101, due to the limitation of cylinder body compression mod cavity shape herein, working depth is wayward, easily causes causing deep hole 1012 and die cavity through when deep hole processing.In addition, adopt during this deep hole 1012 of spark machined and cannot carry out chip removal, cause carbon distribution non-conductive, can not normal process, need constantly to clear up scrap, average two day time just can process deep hole 1012, caused time and manpower significant wastage.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of spark machined deep hole instrument, for overcoming the above-mentioned technical problem existed in prior art.
For achieving the above object and other relevant objects, the invention provides a kind of spark machined deep hole instrument, at least comprise: electrode bar be connected round bar, described electrode bar circular in cross-section, described electrode bar tail end face offers the first axial centre blind hole vertically; Described electrode bar head radially offers radial hole, and described radial hole and described first axially extending bore UNICOM; Described connection round bar offers the second axial central through hole vertically; Described connection round bar head is connected with described electrode bar afterbody, and described connection round bar is equal with the deep hole design length for processing to described electrode bar head distance with the junction of described electrode bar; Described connection round bar afterbody is connected with spark-erosion machine tool.
Further, described second axial central through hole diameter is equal with described first axial centre blind hole diameter.
Further, described electrode bar head is dome-type.
Further, described connection round bar head is connected with described electrode bar tailing screw flight.
Further, described connection round bar head has external screw thread, and described electrode bar afterbody has the internal thread hole be connected with described external screw thread; The length of described electrode bar is equal with the deep hole design length for processing.
As mentioned above, spark machined deep hole instrument of the present invention, has following beneficial effect:
Spark machined deep hole of the present invention comprises electrode bar with instrument and is connected round bar, described connection round bar head is connected with described electrode bar afterbody, now the first axial centre blind hole of described electrode bar forms an electric spark fluid apertures with described the second axial central through hole being connected round bar, electric spark liquid level, in this electric spark fluid apertures, ensures to carry out spark machined in an orderly manner; Because the junction of described connection round bar and described electrode bar is equal with the deep hole design length for processing to described electrode bar head distance, being convenient to the controlled working degree of depth, avoiding in process and deep hole and the through problem of die cavity occur; In addition, because described electrode bar head radially offers radial hole, and described radial hole and described first axially extending bore UNICOM, the scrap produced in process flows into described radial hole from described first axial centre blind hole, then scrap is discharged smoothly from described radial hole, do not need to clear up scrap continually, greatly save time and manpower.
Accompanying drawing explanation
Fig. 1 is shown as insert schematic diagram.
Fig. 2 is shown as a kind of spark machined deep hole instrument schematic diagram of the present invention.
Fig. 3 is shown as electrode bar schematic diagram of the present invention.
Fig. 4 is shown as connection round bar schematic diagram of the present invention.
Element numbers explanation
100 inserts
101 Cooling Holes
1011 exit orifice
1012 deep holes
1 electrode bar
11 first axial centre blind holes
12 radial holes
2 connect round bar
21 second axial central through hole
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 4.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, all should still drop in scope that disclosed technology contents can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 2, the invention provides a kind of spark machined deep hole instrument, at least comprise: electrode bar 1 be connected round bar 2, described connection round bar 2 head is connected with described electrode bar 1 afterbody, and described connection round bar 2 is equal with deep hole 1012 design length for processing to described electrode bar 1 head distance with the junction of described electrode bar 1, see Fig. 1; Described connection round bar 2 afterbody is connected with spark-erosion machine tool.
Described electrode bar 1 circular in cross-section, described electrode bar 1 tail end face offers the first axial centre blind hole 11 vertically; Described electrode bar 1 head radially offers radial hole 12, and described radial hole 12 and described first axially extending bore UNICOM, see Fig. 3.
With reference to 4, described connection round bar 2 offers the second axial central through hole 21 vertically; Preferably, described second axial central through hole 21 diameter and described first axial centre blind hole 11 equal diameters.
Referring to figs. 2 to Fig. 4, when described connection round bar 2 head and described electrode bar 1 afterbody link together, the first axial centre blind hole 11 of described electrode bar 1 forms an electric spark fluid apertures with described the second axial central through hole 21 being connected round bar 2.During deep hole processing 1012, electric spark liquid level, in this electric spark fluid apertures, ensures to carry out spark machined in an orderly manner; Because described connection round bar 2 is equal with deep hole 1012 design length for processing to described electrode bar 1 head distance with the junction of described electrode bar 1, being convenient to the controlled working degree of depth, avoiding in process and deep hole 1012 problem through with die cavity occurs, seeing Fig. 1; In addition, because described electrode bar 1 head radially offers radial hole 12, and described radial hole 12 and described first axially extending bore UNICOM, the scrap produced in process flows into described radial hole 12 from described first axial centre blind hole 11, then scrap is discharged smoothly from described radial hole 12, do not need to clear up scrap continually, greatly save time and manpower.In order to make scrap discharge smoothly, there will not be packing phenomenon, preferably, the bellmouth orifice that described radial hole 12 increases from the inside to the outside gradually for diameter.
Preferably, described connection round bar 2 head is connected with described electrode bar 1 tailing screw flight.Preferably, described connection round bar 2 head has external screw thread, and described electrode bar 1 afterbody has the internal thread hole be connected with described external screw thread; The length of described electrode bar 1 is equal with deep hole 1012 design length for processing, and sees Fig. 2.In edm process, because the length of described electrode bar 1 is equal with deep hole 1012 design length for processing, described deep hole 1012 processing length of convenient control, improves deep hole 1012 working (machining) efficiency and machining accuracy, sees Fig. 1.
With reference to figure 1 and Fig. 3, preferably, described electrode bar 1 head is dome-type.Adopt this head be dome-type electrode bar 1 processing deep hole 1012 can eliminate or delay internal stress, when when die-cast product, insert 100 is being subject in external force and described deep hole 1012 under cold and hot cooling water alternating action, insert 100 can not crack, eliminate the potential risk of leaking, thus extend insert 100 service life, see Fig. 1 and Fig. 3.
In sum, spark machined deep hole instrument of the present invention, because described connection round bar 2 is equal with deep hole 1012 design length for processing to described electrode bar 1 head distance with the junction of described electrode bar 1, is convenient to the controlled working degree of depth.And described electrode bar 1 head radially offers radial hole 12, adding the scrap produced man-hour can discharge smoothly from described radial hole 12, does not need to clear up scrap continually, greatly saves time and manpower.The present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.

Claims (5)

1. a spark machined deep hole instrument, it is characterized in that, at least comprise: electrode bar (1) be connected round bar (2), described electrode bar (1) circular in cross-section, described electrode bar (1) tail end face offers the first axial centre blind hole (11) vertically; Described electrode bar (1) head radially offers radial hole (12), and described radial hole (12) and described first axial centre blind hole (11) UNICOM; Described connection round bar (2) offers the second axial central through hole (21) vertically; Described connection round bar (2) head is connected with described electrode bar (1) afterbody, and described connection round bar (2) is equal with the deep hole design length for processing to described electrode bar (1) head distance with the junction of described electrode bar (1); Described connection round bar (2) afterbody is connected with spark-erosion machine tool.
2. spark machined deep hole instrument according to claim 1, is characterized in that: described second axial central through hole (21) diameter and described first axial centre blind hole (11) equal diameters.
3. spark machined deep hole instrument according to claim 1, is characterized in that: described electrode bar (1) head is dome-type.
4. spark machined deep hole instrument according to claim 1, is characterized in that: described connection round bar (2) head is connected with described electrode bar (1) tailing screw flight.
5. spark machined deep hole instrument according to claim 4, is characterized in that: described connection round bar (2) head has external screw thread, and described electrode bar (1) afterbody has the internal thread hole be connected with described external screw thread; The length of described electrode bar (1) is equal with the deep hole design length for processing.
CN201510277774.3A 2015-05-27 2015-05-27 Tool for electric discharge machining of deep holes Pending CN104842031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510277774.3A CN104842031A (en) 2015-05-27 2015-05-27 Tool for electric discharge machining of deep holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510277774.3A CN104842031A (en) 2015-05-27 2015-05-27 Tool for electric discharge machining of deep holes

Publications (1)

Publication Number Publication Date
CN104842031A true CN104842031A (en) 2015-08-19

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109530829A (en) * 2018-11-09 2019-03-29 中国航空工业集团公司西安飞行自动控制研究所 The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86106290A (en) * 1985-09-16 1987-03-18 洛迦诺电子工业股份有限公司 Galvanic corrosion processing method and carry out the electro-erosion machine of this method
JPS62114823A (en) * 1985-11-08 1987-05-26 Matsushita Electric Ind Co Ltd Spindle body structure for electric discharge machine
CN202344074U (en) * 2011-09-30 2012-07-25 西安航空动力控制有限责任公司 Electrochemical burring tool
CN202411589U (en) * 2012-01-10 2012-09-05 黄河水利职业技术学院 EDM (Electrical discharge machining) electrode of irregular thin and deep hole
CN102773573A (en) * 2011-05-13 2012-11-14 北京市电加工研究所 Electric spark deep blind hole machining device
CN204800092U (en) * 2015-05-27 2015-11-25 上海皮尔博格有色零部件有限公司 Spark -erosion machining is instrument for deep hole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86106290A (en) * 1985-09-16 1987-03-18 洛迦诺电子工业股份有限公司 Galvanic corrosion processing method and carry out the electro-erosion machine of this method
JPS62114823A (en) * 1985-11-08 1987-05-26 Matsushita Electric Ind Co Ltd Spindle body structure for electric discharge machine
CN102773573A (en) * 2011-05-13 2012-11-14 北京市电加工研究所 Electric spark deep blind hole machining device
CN202344074U (en) * 2011-09-30 2012-07-25 西安航空动力控制有限责任公司 Electrochemical burring tool
CN202411589U (en) * 2012-01-10 2012-09-05 黄河水利职业技术学院 EDM (Electrical discharge machining) electrode of irregular thin and deep hole
CN204800092U (en) * 2015-05-27 2015-11-25 上海皮尔博格有色零部件有限公司 Spark -erosion machining is instrument for deep hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109530829A (en) * 2018-11-09 2019-03-29 中国航空工业集团公司西安飞行自动控制研究所 The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system

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Application publication date: 20150819

RJ01 Rejection of invention patent application after publication