CN103056606B - The working method of a kind of thin-walled half shell-pieces - Google Patents

The working method of a kind of thin-walled half shell-pieces Download PDF

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Publication number
CN103056606B
CN103056606B CN201210503051.7A CN201210503051A CN103056606B CN 103056606 B CN103056606 B CN 103056606B CN 201210503051 A CN201210503051 A CN 201210503051A CN 103056606 B CN103056606 B CN 103056606B
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China
Prior art keywords
blank
technique handle
plate
handle
thin
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CN201210503051.7A
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Chinese (zh)
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CN103056606A (en
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姚国兵
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中国航空工业集团公司洛阳电光设备研究所
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Priority to CN201210503051.7A priority Critical patent/CN103056606B/en
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Abstract

The present invention discloses the working method of a kind of thin-walled half shell-pieces, this working method is when processing thin-walled half shell-pieces, reserved technique handle around part blank, it is that the arcuate surface of part blank and inner concave are carried out precision work, offer groove on inner concave by locating surface by the upper and lower plate face of technique handle, wherein for the form fit of the contact and groove of offering the electrospark electrode of groove; And remove technique handle by the clamping bench of clamping part blank, in use, the clamping of part blank is indirectly realized by clamping technique handle, make the part blank can not by direct clamping in the course of processing, decrease clamping stress to the impact of part blank, solve parts of thin-wall casing in prior art cannot on conventional fixture the problem of direct clamping.

Description

The working method of a kind of thin-walled half shell-pieces
Technical field
The present invention relates to mechanical component processing technique field, particularly relate to the working method of a kind of thin-walled half shell-pieces.
Background technology
Thin-walled half shell-pieces 1 has arcuate surface 11, inner concave 12 and is in the inner chamber of the depression of inner concave 12 side, inner concave 12 is offered the groove 13 that several intervals distribute side by side, arcuate surface 11 is convexly equipped with several individual clamping bench 14 spaced apart around the opening of inner chamber, clamping bench 14 has with arcuate surface towards consistent installation end face 15, and the installation end face 15 of all clamping benchs 14 is in the same plane. When machining parts of thin-wall casing, part is carried out precision work by the machining process of general employing routine, but due to reasons such as part structural performance and material behaviors, the fixtures such as conventional vice, pressing plate, bag tire cannot direct clamping parts or very easy cause part deformation because of clamping stress, simultaneously because part shape is complicated, original surface on part cannot be utilized to carry out just looking for and locating, therefore, how to formulate rational processing method, the Set and Positioning problem solved in processing, control the key that part machining deformation is part processing.
Summary of the invention
It is an object of the invention to provide the working method of a kind of thin-walled half shell-pieces, it is intended to solve parts of thin-wall casing in prior art cannot on conventional fixture the problem of direct clamping.
In order to realize above object, the technical solution adopted in the present invention is:
The technical scheme of the working method of thin-walled half shell-pieces of the present invention is as follows:
The working method of a kind of thin-walled half shell-pieces, comprise the following steps: step one, plate-like substrate processes part blank, and in plate-like substrate, reserve the technique handle being integrally connected to around part blank, described technique handle is the plate body being centered around around part blank, and be processed with on technique handle and make the clamping bench on part blank dodge space from what technique handle upper face exposed, the arcuate surface of part blank exposes from the upper face of technique handle, and what the lower face of technique handle was offered the inner space with part blank allows cutter opening;
Step 2, clamping technique handle, and by locating surface of the upper face of technique handle, by allowing cutter opening to the inner concave precision work in the inner chamber of part blank, by locating surface of the lower face of technique handle, to the arcuate surface precision work of part blank;
Step 3, clamping technique handle, and on the inner concave of part blank, offer groove by electrospark electrode, described electrospark electrode has the contact with groove to be offered coupling and locates, with the lower face of technique handle, the reference block coordinated, reference block is in the end of contact, and exposes from the surrounding of contact;
Step 4, clamps part blank by clamping bench on part blank, removes the technique handle around part blank.
Have between step one and step 2, technique handle is opened in the pilot hole being in around part blank, technique handle is fixed on shaping jig by pilot hole by holding bolt, described shaping jig has the upper and lower plate face with technique handle and locates the reference plane coordinated, and offers for the fixture cavity that part blank loads on reference plane.
Have between step 3 and step 4, the clamping bench of part blank offers open holes; Step 4 also has, part blank is fixed on finished product fixture by open holes by joint bolt, described finished product fixture comprises plate-like body, plate-like body is offered and dodges passage for what pass for part blank, dodge the location platform being convexly equipped with on the sidewall of passage for coordinating with clamping bench block, location platform offers the connection hole for coordinating with open holes.
Have between step 2 and step 3, the clamping bench of part blank offers open holes; Have between step 3 and step 4, part blank is fixed on finished product fixture by open holes by joint bolt, described finished product fixture comprises plate-like body, plate-like body is offered and dodges passage for what pass for part blank, dodge the location platform being convexly equipped with on the sidewall of passage for coordinating with clamping bench block, location platform offers the connection hole for coordinating with open holes.
The entity part of described plate-like body is the framework for surrounding around part blank; Space of dodging described in step one is the pitfall coincideing with described framework shape offered in plate-like substrate, and described pitfall is on technique handle upper face part blank and technique handle junction, and surrounds around part blank.
Having between step 2 and step 3, the plate-like substrate being provided with part blank and technique handle is carried out ageing treatment, aging temp is 140 �� 5 DEG C, is incubated 6 hours, comes out of the stove empty cold.
Having between step 3 and step 4, the plate-like substrate being provided with part blank and technique handle is carried out ageing treatment, aging temp is 140 �� 5 DEG C, is incubated 6 hours, comes out of the stove empty cold.
Having between step one and step 2, the upper and lower plate face of grinding technics handle, makes both planenesses be in 0.01 to 0.02.
In step one, on part blank, the installation end face of clamping bench is concordant with the upper face of technique handle.
In step one, technique handle is the U-shaped plate body being centered around around part blank.
The present invention is when processing thin-walled half shell-pieces, reserved technique handle around part blank, it is that the arcuate surface of part blank and inner concave are carried out precision work, offer groove on inner concave by locating surface by the upper and lower plate face of technique handle, wherein for the form fit of the contact and groove of offering the electrospark electrode of groove; And remove technique handle by the clamping bench of clamping part blank, in use, the clamping of part blank is indirectly realized by clamping technique handle, make the part blank can not by direct clamping in the course of processing, decrease clamping stress to the impact of part blank, solve parts of thin-wall casing in prior art cannot on conventional fixture the problem of direct clamping.
Accompanying drawing explanation
Fig. 1 is the perspective view of existing thin-walled half housing;
Fig. 2 is the perspective view of existing thin-walled half housing under another angle;
Fig. 3 is the perspective view of workpiece in step one;
Fig. 4 is the perspective view of workpiece in step one under another angle;
Fig. 5 is the structural representation of shaping jig;
The using state schematic diagram of shaping jig in Fig. 5 when Fig. 6 is processing parts blank arcuate surface;
The using state schematic diagram of shaping jig in Fig. 5 when Fig. 7 is processing parts blank inner concave;
The structural representation of electrospark electrode when Fig. 8 offers first groove on inner concave;
Fig. 9 is the using state schematic diagram of electrospark electrode in Fig. 8;
The structural representation of electrospark electrode when Figure 10 offers the 2nd groove on inner concave;
Figure 11 is the using state schematic diagram of electrospark electrode in Figure 10;
The structural representation of electrospark electrode when Figure 12 offers the 3rd groove on inner concave;
Figure 13 is the using state schematic diagram of electrospark electrode in Figure 12;
The structural representation of electrospark electrode when Figure 14 offers the 4th groove on inner concave;
Figure 15 is the using state schematic diagram of electrospark electrode in Figure 14;
Figure 16 is the structural representation of finished product fixture;
Figure 17 is the using state schematic diagram of finished product fixture in Figure 16.
Embodiment
The embodiment 1 of the working method of thin-walled half shell-pieces of the present invention: as shown in Fig. 1 to Figure 17, comprise the following steps,
Step one, by the position of part blank 2 in plate-like substrate, by the profile of CNC milling machine roughing part blank 2, and in plate-like substrate, reserve the technique handle 3 being integrally connected to around part blank 2, the U-shaped plate body of technique handle 3 for being centered around around part blank, all corners stay and are not more than R4 fillet, and mill out pitfall in the junction of technique handle 3 with part blank 2, and pitfall is centered around part blank 2 around; Reserved process redundancy on part blank 2, so that the arcuate surface of part blank 2 and clamping bench expose from the upper face of technique handle 3, on part blank 2, the installation end face of clamping bench is concordant with the raised part of the upper face of technique handle 3, that offers the inner space with part blank 2 on the lower face of technique handle 3 allows cutter opening, thus obtains the workpiece (as shown in Figure 3 and Figure 4) that is made up of the part blank 2 integrally connected and technique handle 3;
Step 2, carries out ageing treatment to the plate-like substrate being provided with part blank 2 and technique handle 3, ageing treatment technical process be: prepare part �� preheating �� shove charge �� heating and thermal insulation �� come out of the stove. Base material is first contained in porcelain dish, shove charge on the rear double-edged fine-toothed comb loading electric heating bellows or cryostat; Aging temp is 140 �� 5 DEG C, is incubated 6 hours, comes out of the stove empty cold;
Step 3, numerical control milling essence miller skill handle 3 removes the process redundancy on its upper and lower plate face, ensures that the planeness in upper and lower plate face is 0.05. The upper and lower plates face of grinding technics handle 3 again, ensures that planeness is 0.02;
Step 4, technique handle 3 is opened in the pilot hole being in around part blank 2, technique handle 3 is fixed on shaping jig 4 by pilot hole by holding bolt, and taking the upper face of technique handle 3 as locating surface, to the inner concave precision work of part blank 2, taking the lower face of technique handle 3 as locating surface, to the arcuate surface precision work of part blank 2, and on the arcuate surface of part blank 2, it is drilled with the bottom outlet of 8 M3 as required, the inner chamber acute angle of part blank 2 is processed the fillet of R3, it is upper that described shaping jig 4 has with technique handle 3, the reference plane 41 that lower face location coordinates, reference plane 41 is offered for the fixture cavity 42 that part blank loads, such as Fig. 5, shown in Fig. 6 and Fig. 7,
Step 5, continue clamping technique handle 3, and on the inner concave of part blank 2, offer four grooves by electrospark electrode 6, described electrospark electrode 6 has the contact 61 with groove to be offered coupling and locates, with the lower face of technique handle 3, the reference block 62 coordinated, reference block 62 is in the end of contact, and expose from the surrounding of contact, as shown in Fig. 8 to Figure 15;
Step 6, according to the Ageing conditions in step 2, carries out ageing treatment to base material again;
Step 7, offers open holes on the clamping bench of part blank 2;
Step 8, part blank 2 is fixed on finished product fixture 5 by open holes by joint bolt, so that part blank 2 is fixed on finished product fixture 5 by clamping bench, milling machine is removed the technique handle 3 around part blank 2, described finished product fixture 5 comprises plate-like body 51, plate-like body 51 is in frame structure, and it is corresponding with the pitfall being centered around on base material around part blank identical, plate-like body 51 is offered and dodges passage 52 for what pass for part blank 2, dodge the location platform 53 being convexly equipped with on the sidewall of passage 52 for coordinating with clamping bench block, location platform 53 offers the connection hole for coordinating with open holes, as shown in Figure 16 and Figure 17.
The present embodiment is when processing thin-walled half shell-pieces, reserved technique handle 3 around part blank 2, it is that the arcuate surface of part blank 2 and inner concave are carried out precision work, offer groove on inner concave by locating surface by the upper and lower plate face of technique handle 3, wherein for the form fit of the contact and groove of offering the electrospark electrode of groove; And remove technique handle 3 by the clamping bench of clamping part blank 2, in use, the clamping of part blank 2 is indirectly realized so that part blank 2 by direct clamping, can not decrease clamping stress to the impact of part blank 2 in the course of processing by clamping technique handle 3; By the electrospark electrode of the groove design form fit on thin-walled half shell-pieces inner concave, and the contactor end design basis block at electrospark electrode, realize location to coordinate with the lower space of a whole page of technique handle 3, solve the problem of thin-walled half housing further groove processing difficulties.
In the above-described embodiments, the planeness by the upper and lower plate face of technique handle is needed to be worked into 0.02, to ensure to be added by part blank the working accuracy in man-hour, in other embodiments, the upper and lower plate face planeness of technique handle can also be machined into 0.01 to 0.02(and not comprise 0.02) between, thus improve working accuracy; Also or when the upper and lower plates face planeness of plate-like substrate is better the manufacturing procedure to upper and lower plates face can also be saved.
In the above-described embodiments, offer in the junction of technique handle and part blank and the entity pitfall that finished product fixture entity coincide, and with the space of dodging formed by this pitfall, clamping bench is exposed from the upper face of technique handle, and the installation end face of clamping bench is concordant with the technique raised part of handle upper face, in other embodiments, this dodges space can also be greater than the entity for identical parcel finished product platform, or directly remove the raised part of technique handle, the upper face making technique handle is the plane being centered around around part blank, corresponding dodges the angle space between arcuate surface and the upper face of technique handle that space is part blank.
In the above-described embodiments, technique handle is U-shaped plate body, and in other embodiments, technique handle can also be that part blank is integrally connected to the annular at position, intermediate portion place or L-type or yi word pattern plate body.
In the above-described embodiments, the operation offering open holes on clamping bench carries out in step 7, in other embodiments, the operation offering open holes on clamping bench can also be moved and be carried out before step 6, preferably move and carry out to step 4, thus when not pulling down from shaping jig, complete drilling operating, accelerate working efficiency.
In the above-described embodiments, step 2, six is ageing treatment process, with the machining stress removed in part blank, in other embodiments, when the machining stress in part blank is less, it is also possible to only retain the ageing treatment process in step 2 or step 6; Or the ageing treatment process in step 2 and step 6 is all removed.
In the above-described embodiments, on part blank, the installation end face of clamping bench is concordant with the upper face of technique handle, so that when part blank is fixed on finished product fixture, technique handle is all in the side of finished product fixture, in other embodiments, clamping bench can also submerge in the groove offered on technique handle, and corresponding to clamping part blank by clamping bench, finished product fixture can be replaced with the fixture of clamp form.
In the above-described embodiments, adopting shaping jig and finished product fixture to fix technique handle and part blank successively in step 4 and step 8, in other embodiments, two kinds of fixtures with clamp class fixture or can also manually clamp replacement.
In a word, by above content it will be seen that in the embodiment 2 of the working method of thin-walled half shell-pieces of the present invention, this working method can also comprise the steps:
Step one, plate-like substrate processes part blank, and in plate-like substrate, reserve the technique handle being integrally connected to around part blank, described technique handle is the plate body being centered around around part blank, and be processed with on technique handle and make the clamping bench on part blank dodge space from what technique handle upper face exposed, the arcuate surface of part blank exposes from the upper face of technique handle, and what the lower face of technique handle was offered the inner space with part blank allows cutter opening;
Step 2, clamping technique handle, and by locating surface of the upper face of technique handle, by allowing cutter opening to the inner concave precision work in the inner chamber of part blank, by locating surface of the lower face of technique handle, to the arcuate surface precision work of part blank;
Step 3, clamping technique handle, and on the inner concave of part blank, offer groove by electrospark electrode, described electrospark electrode has the contact with groove to be offered coupling and locates, with the lower face of technique handle, the reference block coordinated, reference block is in the end of contact, and exposes from the surrounding of contact;
Step 4, clamps part blank by clamping bench on part blank, removes the technique handle around part blank.

Claims (8)

1. the working method of thin-walled half shell-pieces, it is characterized in that, comprise the following steps: step one, plate-like substrate processes part blank, and in plate-like substrate, reserve the technique handle being integrally connected to around part blank, described technique handle is the plate body being centered around around part blank, and be processed with on technique handle and make the clamping bench on part blank dodge space from what technique handle upper face exposed, the arcuate surface of part blank exposes from the upper face of technique handle, and what the lower face of technique handle was offered the inner space with part blank allows cutter opening;
Step 2, clamping technique handle, and by locating surface of the upper face of technique handle, by allowing cutter opening to the inner concave precision work in the inner chamber of part blank, by locating surface of the lower face of technique handle, to the arcuate surface precision work of part blank;
Step 3, clamping technique handle, and on the inner concave of part blank, offer groove by electrospark electrode, described electrospark electrode has the contact with groove to be offered coupling and locates, with the lower face of technique handle, the reference block coordinated, reference block is in the end of contact, and exposes from the surrounding of contact;
Step 4, offers open holes on the clamping bench of part blank; Part blank is fixed on finished product fixture by open holes by joint bolt, described finished product fixture comprises plate-like body, plate-like body is offered and dodges passage for what pass for part blank, dodge the location platform being convexly equipped with on the sidewall of passage for coordinating with clamping bench block, location platform offers the connection hole for coordinating with open holes; Clamp part blank by clamping bench on part blank, remove the technique handle around part blank.
2. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterized in that, have between step one and step 2, technique handle is opened in the pilot hole being in around part blank, technique handle is fixed on shaping jig by pilot hole by holding bolt, described shaping jig has the upper and lower plate face with technique handle and locates the reference plane coordinated, and offers for the fixture cavity that part blank loads on reference plane.
3. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, the entity part of described plate-like body is the framework for surrounding around part blank; Space of dodging described in step one is the pitfall coincideing with described framework shape offered in plate-like substrate, and described pitfall is on technique handle upper face part blank and technique handle junction, and surrounds around part blank.
4. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, have between step 2 and step 3, the plate-like substrate being provided with part blank and technique handle is carried out ageing treatment, aging temp is 140 �� 5 DEG C, is incubated 6 hours, comes out of the stove empty cold.
5. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, have between step 3 and step 4, the plate-like substrate being provided with part blank and technique handle is carried out ageing treatment, aging temp is 140 �� 5 DEG C, is incubated 6 hours, comes out of the stove empty cold.
6. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, have between step one and step 2, the upper and lower plate face of grinding technics handle, makes both planenesses be in 0.01 to 0.02.
7. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, in step one, on part blank, the installation end face of clamping bench is concordant with the upper face of technique handle.
8. the working method of a kind of thin-walled half shell-pieces according to claim 1, it is characterised in that, in step one, technique handle is the U-shaped plate body being centered around around part blank.
CN201210503051.7A 2012-11-30 2012-11-30 The working method of a kind of thin-walled half shell-pieces CN103056606B (en)

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CN103481017B (en) * 2013-09-18 2015-11-25 沈阳飞机工业(集团)有限公司 The high-efficiency machining method of long beam class thin-walled parts
CN103586640B (en) * 2013-11-14 2016-04-13 湖北三江航天红阳机电有限公司 The processing method of the yielding taper revolving body of the many openings of a kind of thin-walled and revolving body
CN105689995A (en) * 2014-11-26 2016-06-22 无锡市锡北视听设备厂 Manufacturing method of positioning device for high-precision drilling
CN104439977A (en) * 2014-12-03 2015-03-25 北京航星机器制造有限公司 Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts
CN105057753B (en) * 2015-08-13 2018-04-27 成都远翔航空新材料科技有限公司 Special-shaped aviation thin-walled parts Cold-forming process
CN105312644B (en) * 2015-12-01 2017-11-14 中国航空工业集团公司洛阳电光设备研究所 A kind of processing method of clamshell style thin-walled parts
CN105458632B (en) * 2015-12-30 2018-06-29 天津市汇通仪器设备公司 aluminium radiating shell processing method
CN106270835A (en) * 2016-08-31 2017-01-04 中国航天科技集团公司烽火机械厂 A kind of manufacturing technology of journey length regulation support
CN107962350B (en) * 2017-11-13 2019-08-20 昆山市福玛精密钣金有限公司 More basic point formula branch piece high-precision processing technologys
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