CN109454304A - A kind of thin blind hole machining technique - Google Patents
A kind of thin blind hole machining technique Download PDFInfo
- Publication number
- CN109454304A CN109454304A CN201811613842.9A CN201811613842A CN109454304A CN 109454304 A CN109454304 A CN 109454304A CN 201811613842 A CN201811613842 A CN 201811613842A CN 109454304 A CN109454304 A CN 109454304A
- Authority
- CN
- China
- Prior art keywords
- mold insert
- hole
- blind hole
- thin blind
- thin
- 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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
Abstract
The invention discloses a kind of thin blind hole machining techniques, include the following steps: step 1: the position for needing to process thin blind hole on workpiece processes mold insert hole, the deep equality of the depth in the mold insert hole and the thin blind hole, the internal diameter in the mold insert hole are greater than the internal diameter of the thin blind hole；Step 2: processing the mold insert matched with the mold insert hole；Step 3: processing through-hole by the way of wire cutting on the mold insert, the dimension process of through-hole is identical as the dimension process of thin blind hole；Step 4: the mold insert is fixedly mounted in the mold insert hole.By the above-mentioned means, the present invention can guarantee the dimension process of thin blind hole, and will not there are process residues in thin blind hole.
Description
Technical field
The present invention relates to technical fields of mechanical processing, more particularly to a kind of thin blind hole machining technique.
Background technique
It requires processing diameter minimum due to product or the needs of mould structure, on the workpiece of part and the hole not penetrated through is (thin blind
Hole).Since the aperture of thin blind hole is minimum and aperture requires height, so processing (reason: without so on lathe can not be gone with lathe
The cutter of minor diameter；, can be small and deep because of hole if there is corresponding cutter, easily broken using cutter).Simultaneously as blind hole not through
Workpiece, therefore it is not available linear cutter (wire cutting requires hole to be necessary for through hole).For the above reason, the prior art is usual
It is processed by the way of electric spark, but the thin blind hole precision of electrical discharge machining is inadequate, size requirement, while electrical fire is often not achieved
Flower processing can remain carbon slag in thin blind hole, and can not clean out because the aperture of thin blind hole is too small.
For this reason, it may be necessary to design a kind of processing technology of thin blind hole for being able to solve the above problem.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of thin blind hole machining techniques, can guarantee the size of thin blind hole
Technique, and will not there are process residues in thin blind hole.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of thin blind hole machining technique is provided,
Include the following steps:
Step 1: need the position for processing thin blind hole to process mold insert hole on workpiece, the depth in the mold insert hole with it is described
The deep equality of thin blind hole, the internal diameter in the mold insert hole are greater than the internal diameter of the thin blind hole；
Step 2: processing the mold insert matched with the mold insert hole；
Step 3: processing through-hole, the dimension process of through-hole and thin blind hole by the way of wire cutting on the mold insert
Dimension process is identical；
Step 4: the mold insert is fixedly mounted in the mold insert hole.
Preferably, in step 2, the mold insert and the mold insert hole are interference fit, and the outer diameter of the mold insert lower end is small
Internal diameter in the mold insert hole, in order to which mold insert imports in mold insert hole.
Preferably, in step 4, the fixed installation specifically: the mold insert is put into cooling in liquid nitrogen and is contracted to fit
It is encased in the mold insert hole after closing size, this is suitble to having a size of mold insert can be made to be encased in the mold insert hole and realize room temperature
The size being interference fitted afterwards.
Preferably, the internal diameter of the thin blind hole is not more than 0.5mm, and its tolerance range requires within the scope of 0.005mm.
Preferably, the internal diameter in the mold insert hole is 3~10 times of the thin blind hole internal diameter.
A kind of workpiece, one end of workpiece are provided with deep hole, and the other end of workpiece is provided with external screw thread；The work piece screw thread
The end at place is provided with the mold insert hole, and the mold insert is fixedly installed in the mold insert hole, has size work on the mold insert
Skill through-hole identical with required thin blind hole dimension process；Since the mold insert is fixed in the mold insert hole, so through-hole
One end by mold insert hole bottom surface close, in structure with thin blind hole is equivalent in function.
The beneficial effects of the present invention are: the present invention can guarantee the dimension process of thin blind hole, and will not be there are in thin blind hole
Process residues；If gone wrong in process simultaneously, scrapped without whole, high degree reduces processing cost；
The processing is simple for it, conveniently.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view that a kind of thin blind hole machining technique of the present invention applies the workpiece on workpiece；
Fig. 2 is the partial enlargement structural representation in Fig. 1.
The components in the drawings are labeled as follows: 1, workpiece；2, mold insert hole；3, mold insert；4, through-hole；5, deep hole；6, external screw thread.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Fig. 1 and Fig. 2 are please referred to, the embodiment of the present invention includes:
A kind of thin blind hole machining technique, includes the following steps:
Step 1: need the position for processing thin blind hole to process mold insert hole 2 using vertical machining centre on workpiece 1, it is described
The deep equality of the depth in mold insert hole 2 and the thin blind hole；The internal diameter in the mold insert hole 2 is 10 times of the thin blind hole internal diameter；
The internal diameter of the thin blind hole is 0.39mm, and the tolerance range of the thin blind hole requires within the scope of 0.005mm；
Step 2: the mold insert 3 matched with the mold insert hole 2, the mold insert 3 are processed using vertical machining centre
It is interference fit with the mold insert hole 2, the outer diameter of 3 lower end of mold insert is less than the internal diameter in the mold insert hole 2, in order to mold insert 3
It imports in mold insert hole 2；
Step 3: through-hole 4 (being equivalent to thin blind hole) is processed by the way of wire cutting on the mold insert 3, through-hole 4
Dimension process is identical as the dimension process of thin blind hole；
Step 4: the mold insert 3 is put into cooling in liquid nitrogen and is contracted to be encased in the mold insert hole 2 after being suitble to size, it should
It is suitble to having a size of mold insert 3 can be made to be encased in the mold insert hole 2 and realize the size being interference fitted after room temperature.
A kind of workpiece using thin blind hole machining technique, one end of workpiece 1 are provided with deep hole 5, and the other end of workpiece 1 is provided with
External screw thread 6；End on the workpiece 1 where external screw thread 6 is provided with the mold insert hole 2, is fixedly installed in the mold insert hole 2
It states mold insert 3, there is dimension process through-hole 4 identical with required thin blind hole dimension process on the mold insert 3；Due to the mold insert 3
It is fixed in the mold insert hole 2, so one end of through-hole 4 is closed by the bottom surface in mold insert hole 2, in structure and in function
It is equivalent to thin blind hole, and the processing is simple, convenient easy for through-hole 4, can guarantee dimension process, is not easy in hole residual there are processing
Slag.
The present invention can guarantee the dimension process of thin blind hole, and will not there are process residues in thin blind hole；If existed simultaneously
Through-hole 4 goes wrong in processing or use process, scraps without whole, only needs to change mold insert 3, high degree reduces processing
Cost and time；The processing is simple for it, conveniently.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of thin blind hole machining technique, which comprises the steps of:
Step 1: need the position for processing thin blind hole to process mold insert hole on workpiece, the depth in the mold insert hole with it is described thin blind
The deep equality in hole, the internal diameter in the mold insert hole are greater than the internal diameter of the thin blind hole；
Step 2: processing the mold insert matched with the mold insert hole；
Step 3: processing through-hole, the size of the dimension process of through-hole and thin blind hole by the way of wire cutting on the mold insert
Technique is identical；
Step 4: the mold insert is fixedly mounted in the mold insert hole.
2. a kind of thin blind hole machining technique according to claim 1, it is characterised in that: in step 2, the mold insert and institute
Mold insert hole is stated as interference fit, the outer diameter of the mold insert lower end is less than the internal diameter in the mold insert hole, in order to which mold insert imports mold insert
In hole.
3. a kind of thin blind hole machining technique according to claim 1, it is characterised in that: in step 4, the fixed installation
Specifically: the mold insert is put into cooling in liquid nitrogen and is contracted to be encased in the mold insert hole after being suitble to size, this is suitble to size
For mold insert can be made to be encased in the mold insert hole and realize the size being interference fitted after room temperature.
4. a kind of thin blind hole machining technique according to claim 1, it is characterised in that: the internal diameter of the thin blind hole is not more than
0.5mm, and its tolerance range requires within the scope of 0.005mm.
5. a kind of thin blind hole machining technique according to claim 1, it is characterised in that: the internal diameter in the mold insert hole is described
3~10 times of thin blind hole internal diameter.
6. a kind of workpiece requires a kind of thin blind hole machining technique using any of the above, it is characterised in that: the workpiece
One end is provided with deep hole, and the other end of workpiece is provided with external screw thread；End where the work piece screw thread is provided with the mold insert
Hole is fixedly installed the mold insert in the mold insert hole, has dimension process and required thin blind hole dimension process on the mold insert
Identical through-hole；Since the mold insert is fixed in the mold insert hole, so one end of through-hole is sealed by the bottom surface in mold insert hole
Close, in structure with thin blind hole is equivalent in function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613842.9A CN109454304A (en) | 2018-12-27 | 2018-12-27 | A kind of thin blind hole machining technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613842.9A CN109454304A (en) | 2018-12-27 | 2018-12-27 | A kind of thin blind hole machining technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109454304A true CN109454304A (en) | 2019-03-12 |
Family
ID=65615342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811613842.9A Pending CN109454304A (en) | 2018-12-27 | 2018-12-27 | A kind of thin blind hole machining technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109454304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756729A (en) * | 2019-10-17 | 2020-02-07 | 吉林省诚鼎精密铸造有限公司 | Machining and manufacturing method for lifting hole of automobile mould foam model |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501017A (en) * | 2011-11-08 | 2012-06-20 | 中国航空工业集团公司航空动力控制系统研究所 | Method for processing internal spline of blind hole on end face of cylindrical shaft |
| CN105041838A (en) * | 2015-06-25 | 2015-11-11 | 宁波韵升股份有限公司 | Motor shaft with inner spline and manufacturing method of motor shaft |
| CN205325104U (en) * | 2015-11-30 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | Temperature differential method assembly fixture |
| CN106272240A (en) * | 2016-08-24 | 2017-01-04 | 北京星航机电装备有限公司 | A kind of lining assembly tool and assembly method |
| CN106837453A (en) * | 2017-01-19 | 2017-06-13 | 奇瑞汽车股份有限公司 | A kind of Combined hollow camshaft and its processing technology |
-
2018
- 2018-12-27 CN CN201811613842.9A patent/CN109454304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501017A (en) * | 2011-11-08 | 2012-06-20 | 中国航空工业集团公司航空动力控制系统研究所 | Method for processing internal spline of blind hole on end face of cylindrical shaft |
| CN105041838A (en) * | 2015-06-25 | 2015-11-11 | 宁波韵升股份有限公司 | Motor shaft with inner spline and manufacturing method of motor shaft |
| CN205325104U (en) * | 2015-11-30 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | Temperature differential method assembly fixture |
| CN106272240A (en) * | 2016-08-24 | 2017-01-04 | 北京星航机电装备有限公司 | A kind of lining assembly tool and assembly method |
| CN106837453A (en) * | 2017-01-19 | 2017-06-13 | 奇瑞汽车股份有限公司 | A kind of Combined hollow camshaft and its processing technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756729A (en) * | 2019-10-17 | 2020-02-07 | 吉林省诚鼎精密铸造有限公司 | Machining and manufacturing method for lifting hole of automobile mould foam model |
| CN110756729B (en) * | 2019-10-17 | 2020-12-29 | 吉林省诚鼎精密铸造有限公司 | Machining and manufacturing method for lifting hole of automobile mould foam model |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190312 |
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| RJ01 | Rejection of invention patent application after publication |