CN104999143A - Electric spark grinding tool for PCD piece - Google Patents
Electric spark grinding tool for PCD piece Download PDFInfo
- Publication number
- CN104999143A CN104999143A CN201510431618.8A CN201510431618A CN104999143A CN 104999143 A CN104999143 A CN 104999143A CN 201510431618 A CN201510431618 A CN 201510431618A CN 104999143 A CN104999143 A CN 104999143A
- Authority
- CN
- China
- Prior art keywords
- connection
- electrode
- electrode disk
- spark
- grinding
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
- B23H1/06—Electrode material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to an electric spark grinding tool for a PCD piece. The electric spark grinding tool comprises a piece attaching workpiece, a spark machine electrode and an electric spark machine tool shaft. The piece attaching workpiece is provided with a first installation fixing hole and a piece attaching groove. The spark machine electrode comprises a connection fixing disc assembly, an electrode disc and a bolt. The connection fixing disc assembly comprises a connection upper disc and a connection lower disc. A connection hole in the connection lower disc corresponds to a connection hole in the electrode disc. The bolt penetrates through the connection hole in the connection lower disc and the connection hole in the electrode disc, so that the connection fixing disc assembly is connected with the electrode disc. The grinding face of the electrode disc is opposite to the piece attaching groove of the piece attaching workpiece. The electric spark machine tool shaft is in matched connection with a second installation fixing hole in the connection fixing disc assembly. The electric spark grinding tool for the PCD piece is simple in structure, convenient to operate, efficient, reliable and capable of achieving large-size PCD piece grinding.
Description
Technical field
The present invention relates to a kind of PCD sheet electric spark grinding fixture, belong to Grinding Technology field.
Background technology
PCD is also known as polycrystalline diamond, and PCD sheet is after being the metal dust Homogeneous phase mixing such as micron-sized diamond particles and Co, Ni by granularity, under high pressure-temperature, and a kind of composite sheet that tungsten carbide (WC) base material sinters.
PCD sheet is often applied to cutter, bearing supporter etc. because of its good characteristic, but because of the roughness requirements that PCD sheet its rigidity limits and accessory is processed, current PCD sheet grinding mainly adopts grinding and polishing method, not only process operation is loaded down with trivial details, and working (machining) efficiency is low, and the roughness of PCD sheet and flatness are difficult to meet workpiece demand, and because of the restriction of grinding and polishing structure, cannot carry out the grinding of large scale PCD sheet, large scale PCD sheet processes often dependence on import, and cost is higher.
Electric spark grinding refers to and produce the spark machined that pulsed discharge removes conductive material between instrument and workpiece, existing multiple patents propose the method and apparatus of EDM Grinding, wash to cut and meet machining tool motor as patent CN101670519A discloses a kind of electric spark end face with mechanical grinding, patent CN1557606 discloses a kind of non-conductive material electric discharge machine composite grinding method and lathe, the electrode of these electric spark grinding devices and emery wheel all adopt wheel cylindrical and absorption surface, working (finishing) area is little, easily cause large-size workpiece flatness difference, and because of its structure cannot break through PCD sheet hardness restriction, all be not suitable for the grinding of PCD sheet.
Summary of the invention
The object of the invention is the defect for prior art, provide a kind of PCD sheet electric spark grinding fixture, structure is simple, and easy to operate, high efficient and reliable, can realize the grinding of large scale PCD sheet.
The present invention is achieved by the following technical solutions.
A kind of PCD sheet electric spark grinding fixture, comprise paster workpiece, spark machine electrode and spark-erosion machine tool axle, wherein, described paster workpiece is provided with the first installation fixing hole, described paster workpiece has mounting surface, described mounting surface is provided with paster groove, described spark machine electrode comprises and is connected and fixed dish assembly, electrode disk and bolt, the described dish assembly that is connected and fixed is provided with the second installation fixing hole, the described dish assembly that is connected and fixed comprises the upper dish of connection and is connected lower wall, described connection is coiled, connection lower wall and electrode disk are disc structure, the diameter that described connection is coiled is d1, the diameter of described connection lower wall is d2, the diameter of described electrode disk is d3, described d1:d2:d3=1:3:10, described connection lower wall is provided with some connecting holes, described electrode disk is provided with some connecting holes, described electrode disk has grinding face, the connecting hole of described connection lower wall is corresponding with the connecting hole of electrode disk to be arranged, described bolt is through connecting the connecting hole of lower wall and the connecting hole of electrode disk, realization is connected and fixed dish assembly and is connected with electrode disk, the described grinding face of spark machine electrodes dish and the paster groove of paster workpiece are oppositely arranged, described spark-erosion machine tool axle be connected and fixed the installation fixing hole coiling assembly and be connected.
A kind of PCD sheet electric spark grinding fixture, wherein, described electrode disk is tungsten copper material.
A kind of PCD sheet electric spark grinding fixture, wherein, the connecting hole of described connection lower wall and the connecting hole of electrode disk all have four and are square profile.
Beneficial effect of the present invention is:
Spark-erosion machine tool axle is connected with spark-erosion machine tool, PCD sheet is affixed in the paster groove of paster workpiece, open spark-erosion machine tool, spark-erosion machine tool axle rotarily drives and is connected and fixed dish assembly, being connected and fixed dish assembly drives tungsten copper electrode disk to rotate, and makes the grinding face of electrode disk carry out grinding to PCD sheet surface.
The diameter connecting upper dish in the present invention is d1, the diameter connecting lower wall is d2, and the diameter of electrode disk is d3, and d1:d2:d3=1:3:10, not only make spark-erosion machine tool axle and be connected and fixed that coil assembly fixing tightr, and ensureing to be connected and fixed and coil assembly fastening transmission is formed to tungsten copper electrode disk.
The present invention utilizes tungsten copper electrode disk and PCD sheet surface to keep narrow and small spark gap, make in spark gap, to produce high-frequency spark discharge removal PCD slice surface metal material, reach the object of grinding, when avoiding traditional grinding and polishing frock to PCD sheet Surface Machining, disc surface contacts grinding with PCD sheet, and mill is short for service life, and the metallic particles under grinding is not easily removed, cause PCD sheet surface roughness and flatness of poor quality, and the problem that working (machining) efficiency is low.
The present invention adopts whole disk of tungsten copper electrode disk to the processing of PCD sheet surfacing, avoids traditional electrical spark processing tool and adopts cylindrical, cause the problem that working (finishing) area is little, cannot realize the requirement of PCD sheet processing plane degree.
Structure of the present invention is simple, and easy to operate, high efficient and reliable, can realize the grinding of large scale PCD sheet, and the PCD sheet surface roughness processed reaches 0.005, and flatness reaches 0.005, can replace imported product, reduce costs.
Accompanying drawing explanation
Fig. 1 is working state schematic representation of the present invention.
Fig. 2 is paster workpiece left view of the present invention.
Fig. 3 is that the present invention is connected and fixed dish assembly plan view.
Fig. 4 is electrode disk top view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
A kind of PCD sheet electric spark grinding fixture, comprise paster workpiece 1, spark machine electrode 11 and spark-erosion machine tool axle 5, wherein, described paster workpiece 1 is provided with the first installation fixing hole 2, described paster workpiece 1 has mounting surface 12, described mounting surface 12 is provided with paster groove 13, described spark machine electrode 11 comprise be connected and fixed dish assembly 8, electrode disk 10 and bolt 9, the described dish assembly 8 that is connected and fixed is provided with the second installation fixing hole 15, the described dish assembly 8 that is connected and fixed comprises the upper dish 6 of connection and is connected lower wall 7, dish 6 in described connection, connection lower wall 7 and electrode disk 10 are disc structure, in described connection, the diameter of dish 6 is d1, the diameter of described connection lower wall 7 is d2, the diameter of described electrode disk 10 is d3, d1:d2:d3=1:3:10, described connection lower wall 7 is provided with some connecting holes 14, described electrode disk 10 is tungsten copper material, described electrode disk 10 is provided with some connecting holes 16, described electrode disk 10 has grinding face 4, the connecting hole 14 of described connection lower wall 7 is corresponding with the connecting hole 16 of electrode disk 10 to be arranged, connecting hole 14 and the connecting hole 16 of electrode disk 10 of described connection lower wall 7 all have four and are square profile, described bolt 9 is through the connecting hole 16 of the connecting hole 14 with electrode disk 10 that connect lower wall 7, realization is connected and fixed dish assembly 8 and is connected with electrode disk 10, the grinding face 4 of described spark machine electrode 11 electrode disk 10 is oppositely arranged with the paster groove 13 of paster workpiece 1, described spark-erosion machine tool axle 5 be connected and fixed the installation fixing hole 15 coiling assembly 8 and be connected.
PCD sheet 3 is affixed in the paster groove 13 of paster workpiece 1, open spark-erosion machine tool, spark-erosion machine tool axle 5 rotarily drives and is connected and fixed dish assembly 8, is connected and fixed dish assembly 8 and drives tungsten copper electrode disk 10 to rotate, make grinding face 4 pairs of PCD sheet 3 surfaces of electrode disk 10 carry out grinding.
Structure of the present invention is simple, and easy to operate, high efficient and reliable, can realize the grinding of large scale PCD sheet, and the PCD sheet surface roughness processed reaches 0.005, and flatness reaches 0.005, can replace imported product, reduce costs.
The foregoing is only preferred embodiment of the present invention, be not limited to the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a PCD sheet electric spark grinding fixture, it is characterized by, comprise paster workpiece, spark machine electrode and spark-erosion machine tool axle, wherein, described paster workpiece is provided with the first installation fixing hole, described paster workpiece has mounting surface, described mounting surface is provided with paster groove, described spark machine electrode comprises and is connected and fixed dish assembly, electrode disk and bolt, the described dish assembly that is connected and fixed is provided with the second installation fixing hole, the described dish assembly that is connected and fixed comprises the upper dish of connection and is connected lower wall, described connection is coiled, connection lower wall and electrode disk are disc structure, the diameter that described connection is coiled is d1, the diameter of described connection lower wall is d2, the diameter of described electrode disk is d3, described d1:d2:d3=1:3:10, described connection lower wall is provided with some connecting holes, described electrode disk is provided with some connecting holes, described electrode disk has grinding face, the connecting hole of described connection lower wall is corresponding with the connecting hole of electrode disk to be arranged, described bolt is through connecting the connecting hole of lower wall and the connecting hole of electrode disk, realization is connected and fixed dish assembly and is connected with electrode disk, the described grinding face of spark machine electrodes dish and the paster groove of paster workpiece are oppositely arranged, described spark-erosion machine tool axle be connected and fixed the installation fixing hole coiling assembly and be connected.
2. a kind of PCD sheet electric spark grinding fixture as claimed in claim 1, it is characterized by, described electrode disk is tungsten copper material.
3. a kind of PCD sheet electric spark grinding fixture as claimed in claim 1, is characterized by, and the connecting hole of described connection lower wall and the connecting hole of electrode disk all have four and be square profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510431618.8A CN104999143A (en) | 2015-07-22 | 2015-07-22 | Electric spark grinding tool for PCD piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510431618.8A CN104999143A (en) | 2015-07-22 | 2015-07-22 | Electric spark grinding tool for PCD piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999143A true CN104999143A (en) | 2015-10-28 |
Family
ID=54372145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510431618.8A Pending CN104999143A (en) | 2015-07-22 | 2015-07-22 | Electric spark grinding tool for PCD piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523910A (en) * | 2021-06-22 | 2021-10-22 | 合肥聚能电物理高技术开发有限公司 | Hole groove machining method for tungsten-copper composite board and tungsten-copper composite board |
-
2015
- 2015-07-22 CN CN201510431618.8A patent/CN104999143A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523910A (en) * | 2021-06-22 | 2021-10-22 | 合肥聚能电物理高技术开发有限公司 | Hole groove machining method for tungsten-copper composite board and tungsten-copper composite board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |
|
| WD01 | Invention patent application deemed withdrawn after publication |