CN104526271B - A kind of waist moldeed depth hole forming method and the slip casting block prepared - Google Patents
A kind of waist moldeed depth hole forming method and the slip casting block prepared Download PDFInfo
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- CN104526271B CN104526271B CN201410710911.3A CN201410710911A CN104526271B CN 104526271 B CN104526271 B CN 104526271B CN 201410710911 A CN201410710911 A CN 201410710911A CN 104526271 B CN104526271 B CN 104526271B
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- notch
- slip casting
- milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Abstract
The invention discloses a kind of waist moldeed depth hole forming method and the slip casting block prepared, it comprises the following steps：According to workpiece to be processed shape blanking, the first semi-finished product are obtained；First semi-finished product are resolved into a few segment workpiece, the second semi-finished product are obtained；Bore two through holes along its length on each second semi worked pieces, obtain the 3rd semi-finished product；Each 3rd semi-finished product are welded into assembly successively, the 4th semi-finished product are obtained；The groove milling mouthful along its length of two deep holes of correspondence, obtains the 5th semi-finished product on the 4th semi-finished product；Machining bar shaped plate simultaneously beats groove, obtains the 6th semi-finished product；By the 6th semi-finished product welding fabrication corresponding with the notch of the 5th semi-finished product.Invention not only avoids the various accuracy errors during Boring, brill Milling Machining is directly carried out after being decomposed due to deep hole, therefore cost is relatively low, and can reach the requirement of the precision to deep hole hole wall, linearity, smoothness etc., assembled shaping is welded again to complete, and improves production efficiency.
Description
Technical field
The present invention relates to a kind of waist moldeed depth hole forming method and the slip casting block prepared.
Background technology
Deep hole refers to the hole that the ratio between hole depth and aperture are more than 6.The processing of deep hole machining, particularly elongated hole, is that machinery adds
A difficult problem in work.Difficult point is that cutter is elongated, and poor rigidity is easily snapped off, and processing is strong
Degree is inadequate, and machining accuracy is difficult to ensure that.Name of patent application is " deep hole processing method and the slip casting prepared
Block "（Publication No.：CN 103192230 A）The hole section of slip casting block from katolysis, is milled out two notches, so by middle proposition
Spicing forming type afterwards.But, the flatness of two notches is difficult to control in welding process, and very big pressure is needed during defeated slurry
The flowing of dynamic slurry is pushed, weld seam can bear very big tensile force, and tensile force can cause weld seam crackle occur, cause hole to be burst apart.
The content of the invention
The technical problems to be solved by the invention are a kind of processing side of not enough offer existed for above-mentioned prior art
Just the slip casting block that the waist moldeed depth hole forming method of welding quality, can be improved and prepared.
The technical solution adopted in the present invention is：A kind of waist moldeed depth hole forming method, it is characterised in that：It includes following step
Suddenly：
Step one：According to workpiece to be processed shape blanking, the first semi-finished product are obtained；
Step 2：First semi-finished product are resolved into a few segment workpiece, the second semi-finished product are obtained；
Step 3：Bore two through holes along its length on each second semi worked pieces, obtain the 3rd semi-finished product；
Step 4：Each 3rd semi-finished product successively assembly are got up and are welded and fixed, the 4th semi-finished product are obtained, make the 4th half into
Product generally form two deep holes；
Step 5：The groove milling mouthful along its length of two deep holes of correspondence, beats at the opening of notch on the 4th semi-finished product
Groove, obtains the 5th semi-finished product；
Step 6：Machining bar shaped plate simultaneously beats groove, and the lower surface of bar shaped plate will be finished, the 6th is obtained
Semi-finished product；
Step 7：By the 6th semi-finished product welding fabrication corresponding with the notch of the 5th semi-finished product.
By above-mentioned technical proposal, in addition to step 8, it is specially：To the welding position Kai Po of the processing workpiece of welding fabrication
Mouthful, then with use carbon-dioxide arc welding capping after bottom argon arc welding, then carry out overall processing, polish, obtain finished product.
By above-mentioned technical proposal, the water pressure test is carried out after the completion of step 8, is strained after the water pressure test is qualified by induction type
The linearity in piece mensuration measurement waist moldeed depth hole, the roughness in waist moldeed depth hole is measured by endoporus roughness measuring instrument.
By above-mentioned technical proposal, the assembled process in step 4 is specially：Each is punctured into successively by two central shafts
The series connection assembly of each 3rd semi-finished product is got up in two through holes of three semi-finished product.
By above-mentioned technical proposal, the detailed process of groove milling mouthful is in step 5：The position of groove milling mouthful is in two deep hole lines
Centerline groove milling mouthful, i.e., insert milling since position of center line, traversing carry out milling to the left and right in two times, then slotting milling is extremely again
Inside two deep holes, notch is formed, two sides and bottom surface respectively to notch carry out side milling and end mill refine finally.
By above-mentioned technical proposal, step 7 is specially：5th semi-finished product are placed on horizontal table, notch is upward,
Then the 6th semi-finished product are placed into the 5th semi-finished product notch according to bevel shape so that two semi-finished product spicing forming types, it is most laggard
Row welding, splicing welding joint is watertight weld seam.
A kind of slip casting block, it includes slip casting block main body, it is characterised in that：The slip casting block main body is bar shaped tabular, in note
Waist moldeed depth hole is provided with lumps main body, the slip casting block main body is prepared from by any of the above-described method
Having the beneficial effect that acquired by the present invention：Invention not only avoids the various precision during Boring are inclined
Difference, directly carries out brill Milling Machining after being decomposed due to deep hole, easy to process, therefore cost is relatively low, and can reach to deep hole hole wall
The requirement of precision, linearity, smoothness etc., then assembled shaping i.e. completion is welded, improve production efficiency；The present invention uses notch
With the welding of plate, welding quality is improved, it is to avoid hole is burst apart situation caused by being stretched due to pressure in hole to weld seam
Occur.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the invention.
Fig. 2 is the side view of the 5th semi-finished product in Fig. 1.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of waist moldeed depth hole forming method that the present embodiment is provided, it comprises the following steps：
Step one：According to workpiece to be processed shape blanking, the first semi-finished product 1 are obtained；
Step 2：First semi-finished product are resolved into a few segment workpiece, the second semi-finished product 2 are obtained；
Step 3：Bore two through holes along its length on each second semi worked pieces, obtain the 3rd semi-finished product
3；
Step 4：Each 3rd semi-finished product are welded into assembly successively, during assembly, each 3rd semi-finished product led to
Cross two central shafts and be inserted into two through holes and be together in series, so as to ensure the axiality in each hole, obtain the 4th semi-finished product 4, make
4th semi-finished product 4 generally form two deep holes；
Step 5：Two deep holes of correspondence groove milling mouthful along its length on the 4th semi-finished product 4, the position of groove milling mouthful be
The centerline groove milling mouthful of two deep hole lines, i.e., the slotting milling since position of center line, traversing carry out milling to the left and right in two times, so
Insert again inside milling to two deep holes afterwards, form notch（The shape of notch is as shown in Figure 2）, last two sides and bottom respectively to notch
Face carries out side milling and end mill refine, is met permissible accuracy, and beats groove at the opening of notch, obtains the 5th semi-finished product
5；
Step 6：Machining bar shaped plate simultaneously beats groove, and the lower surface of bar shaped plate will be finished, the 6th is obtained
Semi-finished product 6；
Step 7：By the 6th semi-finished product welding fabrication corresponding with the notch of the 5th semi-finished product, the 5th semi-finished product are placed on
On horizontal table, the 6th semi-finished product upwards, are then placed into the 5th semi-finished product notch so that two by notch according to bevel shape
Semi-finished product spicing forming type, is finally welded.Splicing welding joint is watertight weld seam.
Step 8：To the welding position bevel of the processing workpiece of welding fabrication, then with using titanium dioxide after bottom argon arc welding
Carbon protection welding cap face, to ensure the quality of weld seam, then carries out overall processing, polishing, obtains finished product 7.
Step 9：Need to carry out the water pressure test after the completion of welding, by the pressurization that adds water in device to hole, observation boost process, which is neutralized, to be held
The change of weld seam during pressure, if having phenomenon of osmosis.
The straight line degree measurement in waist moldeed depth hole uses induction type foil gauge mensuration, i.e., in slip casting block surface patch plus foil gauge,
The linearity in waist moldeed depth hole is measured by sensor.The roughness in waist moldeed depth hole is measured using endoporus roughness measuring instrument.
Welding of the invention by using notch and bar shaped plate, the flatness of notch and bar shaped plate is easily controlled, energy
Enough ensure both welding precisions, and waist-shaped hole inwall is all finished and formed, it is ensured that slurry circulates smooth in hole, it is to avoid
There is the situation of hole plug, also avoid bead crack occur, and then the pressure in hole can be avoided to cause weld seam stretching
Hole the occurrence of burst apart, further increase product quality.
The present embodiment additionally provides a kind of slip casting block, and it includes slip casting block main body, and the slip casting block main body is bar shaped tabular,
Waist-shaped hole is provided with slip casting block, its general long 2-3m is far longer than aperture, belongs to deep hole machining scope, the slip casting block
Main body is prepared from by the above method.The present invention is by changing deep hole processing technology, so as to cutter and fixture requirement
The deep hole processed is caused to meet the requirement of precision, linearity, smoothness in the case of relatively low.
Claims (2)
1. a kind of waist moldeed depth hole forming method, it is characterised in that：It comprises the following steps：
Step one：According to workpiece to be processed shape blanking, the first semi-finished product are obtained；
Step 2：First semi-finished product are resolved into a few segment workpiece, the second semi-finished product are obtained；
Step 3：Bore two through holes along its length on each second semi worked pieces, obtain the 3rd semi-finished product；
Step 4：It is punctured into successively in two through holes of each 3rd semi-finished product by two central shafts and each 3rd semi-finished product is connected
Assembly is got up, and is welded and fixed, and obtains the 4th semi-finished product, the 4th semi-finished product is generally formed two deep holes；
Step 5：The groove milling mouthful along its length of two deep holes is corresponded on the 4th semi-finished product, the detailed process of groove milling mouthful is：Milling
The position of notch is the centerline groove milling mouthful in two deep hole lines, i.e., milling is inserted since position of center line, to the left and right several times
Traversing carry out milling, is then inserted inside milling to two deep holes again, forms notch, and two sides and bottom surface respectively to notch are carried out finally
Side milling and end mill refine, groove is beaten at the opening of notch, obtains the 5th semi-finished product；
Step 6：Machining bar shaped plate simultaneously beat groove, the lower surface of bar shaped plate will be finished, obtain the 6th half into
Product；
Step 7：By the 6th semi-finished product welding fabrication corresponding with the notch of the 5th semi-finished product, it is specially：5th semi-finished product are placed
On horizontal table, the 6th semi-finished product upwards, are then placed into the 5th semi-finished product notch by notch according to bevel shape so that
Two semi-finished product spicing forming types, are finally welded, and splicing welding joint is watertight weld seam；
Step 8, be specially：To the welding position bevel of the processing workpiece of welding fabrication, then with using dioxy after bottom argon arc welding
Change carbon protection welding cap face, then carry out overall processing, polishing, obtain finished product；
The water pressure test is carried out after the completion of step 8, waist moldeed depth hole is measured by induction type foil gauge mensuration after the water pressure test is qualified
Linearity, pass through the roughness that endoporus roughness measuring instrument measures waist moldeed depth hole.
2. a kind of slip casting block, it includes slip casting block main body, it is characterised in that：The slip casting block main body is bar shaped tabular, in slip casting
Waist moldeed depth hole is provided with block main body, the slip casting block main body is prepared from by the method described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710911.3A CN104526271B (en) | 2014-12-01 | 2014-12-01 | A kind of waist moldeed depth hole forming method and the slip casting block prepared |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710911.3A CN104526271B (en) | 2014-12-01 | 2014-12-01 | A kind of waist moldeed depth hole forming method and the slip casting block prepared |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526271A CN104526271A (en) | 2015-04-22 |
| CN104526271B true CN104526271B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410710911.3A Active CN104526271B (en) | 2014-12-01 | 2014-12-01 | A kind of waist moldeed depth hole forming method and the slip casting block prepared |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392468B (en) * | 2016-12-16 | 2019-03-19 | 武汉大学 | A kind of metal increasing material manufacturing method of deep-hole parts |
| CN112077539B (en) * | 2020-09-07 | 2022-04-19 | 昆山鸿永胜精密五金制品有限公司 | Manufacturing method of waist-shaped lining hole |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202377288U (en) * | 2011-11-29 | 2012-08-15 | 陈武国 | Segmented mold for deep and long hole |
| CN102661155B (en) * | 2012-05-18 | 2014-05-07 | 武汉船用机械有限责任公司 | Shield machine synchronous grouting pipeline system and shield machine with same |
| CN103192230B (en) * | 2013-04-22 | 2015-09-09 | 中铁科工集团有限公司 | Deep hole processing method and the slip casting block prepared |
| CN104014994B (en) * | 2014-05-30 | 2016-10-05 | 武汉船用机械有限责任公司 | A kind of processing method of embedded single fluid grouting plate |
| CN104018851B (en) * | 2014-05-30 | 2016-07-13 | 武汉船用机械有限责任公司 | A kind of embedded single fluid grouting plate |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20150422 Assignee: China Railway Science & Industry Rail Transit Equipment Co., Ltd. Assignor: WUHAN DETIAN SHENKONG MACHINERY CO., LTD. Contract record no.: 2015420000115 Denomination of invention: Waist type deep hole processing method and prepared grouting blocks License type: Exclusive License Record date: 20150626 |
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