CN107695754A - A kind of thin-walled parts hot charging processing fixed provision for disengagement and fixed method for dismounting - Google Patents

A kind of thin-walled parts hot charging processing fixed provision for disengagement and fixed method for dismounting Download PDF

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Publication number
CN107695754A
CN107695754A CN201710987274.8A CN201710987274A CN107695754A CN 107695754 A CN107695754 A CN 107695754A CN 201710987274 A CN201710987274 A CN 201710987274A CN 107695754 A CN107695754 A CN 107695754A
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CN
China
Prior art keywords
thin
walled parts
dismounting
fixed
mandrel
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CN201710987274.8A
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Chinese (zh)
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CN107695754B (en
Inventor
赵莉
徐楠
邢帅
张利
刘欣
王洪星
张世军
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CNNC Tianjin Technology Development Co Ltd
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CNNC Tianjin Technology Development Co Ltd
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Priority to CN201710987274.8A priority Critical patent/CN107695754B/en
Publication of CN107695754A publication Critical patent/CN107695754A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • 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
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • 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
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/025—For detaching only

Abstract

Processed the invention discloses a kind of thin-walled parts hot charging includes fixed central spindle, dismounting pad and pull bar with fixed provision for disengagement and fixed method for dismounting, described device；The fixed central spindle has that mandrel is cylindrical, and hot worked thin-walled parts insert fixed central spindle, is held tightly after cooling on mandrel is cylindrical；The dismounting pad is flexibly connected with described fixed central spindle, driven described thin-walled parts is departed from fixed central spindle between fixed central spindle and thin-walled parts；The pull bar is connected through thin-walled parts opening with described dismounting pad, for pulling the dismounting pad to disengage it from the fixed central spindle.The present invention is easy to operate, can improve the machining accuracy of thin-walled parts.

Description

A kind of thin-walled parts hot charging processing fixed provision for disengagement and fixed method for dismounting
Technical field
The present invention relates to parts technical field, is processed more particularly to a kind of thin-walled parts hot charging with fixed provision for disengagement And fixed method for dismounting.
Background technology
It is whole due to part during turning thin-wall part with the continuous improvement of design accuracy in machining field Body is rigidly poor, the deformation of thin-walled parts is directly often caused using claw clamping clamping, it is impossible to meet design requirement, especially It is the thin-walled parts for both ends open, thin-walled is located at the big opening end of part, is extremely easily deformed, a kind of to be directed to the thin of this Wall part hot charging processing needs further to research and develop with fixed provision for disengagement.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of thin-walled parts hot charging is processed With fixed provision for disengagement and fixed method for dismounting.
Technical scheme is used by realize the purpose of the present invention：
A kind of fixed provision for disengagement of thin-walled parts hot charging processing, including：
Fixed central spindle, have the mandrel to match with thin-walled parts cylindrical, hot worked thin-walled parts insert fixed central spindle, Held tightly after cooling on mandrel is cylindrical
Dismounting pad, is flexibly connected with described fixed central spindle, driven to make institute between fixed central spindle and thin-walled parts The thin-walled parts stated depart from fixed central spindle；
Pull bar, the opening through thin-walled parts are connected with described dismounting pad, for pulling the dismounting pad to disengage it from The fixed central spindle.
Preferably, the fixed central spindle is assemblied on machine tool chief axis three-jaw.
Preferably, the center of the fixed central spindle is provided with pilot hole, and the dismounting pad, which is provided with, can match insertion dress The assembly side of distribution.
Preferably, the dismounting pad has two concentric round platforms, and the gap of the first round platform and the pilot hole coordinates, The external diameter of second round platform is less than the cylindrical external diameter of mandrel.
Preferably, the center of the dismounting pad is provided with screwed hole, and the pull bar corresponding end is provided with and the screwed hole The connection screw thread to match.
Preferably, the end of the pull bar is provided with handle.
Preferably, the pull bar is assemblied on lathe cutter saddle.
Preferably, the pull bar is assemblied on lathe cutter saddle by connecting rod, and cavity, end shape are provided with the connecting rod Into the opening passed through for pull bar, the end of the pull bar is fixed with sliding block, and the sliding block does not emerge in opening, and described Cavity is slidably connected, and can be rotated in cavity, and the distal end of the connecting rod is installed on lathe cutter saddle.
Preferably, the end of the fixed central spindle is provided with the defining flange for being used for limiting thin-walled parts position, described spacing Flange is arranged on the cylindrical end of mandrel.
Another aspect of the present invention, in addition to a kind of thin-walled parts hot charging processing processing method of fixed provision for disengagement, Comprise the following steps：
Step 1, thin-walled parts are put into electrical heating baking oven and heat the scheduled time, be drawn off after heat parts expansion Baking oven；
Step 2, dismounting is padded and loads mandrel；
Step 3, thin-walled parts are loaded into mandrel while hot；
Step 4, after thin-walled parts shrinkage and the cylindrical interference of mandrel are held tightly, the external form of thin-walled parts is processed；
Step 5, dismounting pad is driven by pull bar, thin-walled parts is removed from mandrel, complete part dismounting.
Preferably, the step 5 is specially：Pull bar is screwed in the screwed hole at dismounting pad center, mobile machine tool knife rest, connection Bar and pull bar can drive dismounting pad to remove thin-walled parts from mandrel, complete the dismounting of part.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, using the principle expanded with heat and contract with cold, thin-walled parts are put into electrical heating case loading mandrel are taken out after workpiece thermal expansion, Thin-walled parts can be held tightly (size is slightly larger than thin-walled parts inner chamber) cylindrical with mandrel after temperature declines, and the car for carrying out part external form adds Work.
2nd, mandrel afterbody one end is clamped using lathe three-jaw, will be fixed on after pull bar and connecting rod assembling on lathe cutter saddle. The knife rest equipped with pull bar, connecting rod is moved to machine tool chief axis center certain position after completion of processing, manually by pull bar front end spiral shell The screwed hole at dismounting pad center, then slow follow rest backward are screwed at line, pull bar can drive dismounting pad to move thin-walled parts Go out disassembling mandrel to get off.Instant invention overcomes difficult point of the prior art, and structure is novel, easy to operate, improves thin-walled parts Machining accuracy.
Brief description of the drawings
Fig. 1 show the structural representation of embodiment 1.
Fig. 2 show the schematic diagram that the thin-walled parts of embodiment 2 load after mandrel.
The pull bar that Fig. 3 show embodiment 2 screws in the schematic diagram that dismounting is padded.
Fig. 4 show the schematic diagram after the dismounting thin-walled parts of embodiment 2.
Wherein：1- fixed central spindles, 1a- mandrels are cylindrical, 1b- pilot holes, 2- dismounting pads, 2a- screwed holes, 3- thin-walled parts, 4- pull bars, 4a- connection screw threads, 5- connecting rods, 6- defining flanges.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It is it should be appreciated that described herein Specific embodiment only to explain the present invention, be not intended to limit the present invention.
The thin-walled parts of the present invention, there is the structure of both ends open, the opening of cylindrical shape thin-walled one end is big opening end, small The thickness of openend and reducing end face is relatively thick.
Embodiment 1, pull bar 4 pull manually：
As shown in figure 1, a kind of fixed provision for disengagement of thin-walled parts hot charging processing, including：
Fixed central spindle 1, there is the cylindrical 1a of mandrel, the big opening end insertion fixed central spindle of hot worked thin-walled parts, cooling Afterwards, cylindrical shape thin-walled is held tightly on mandrel is cylindrical；
Pad 2 is dismantled, is flexibly connected with described fixed central spindle 1, it is driven between fixed central spindle 1 and thin-walled parts 3 Described thin-walled parts are made to depart from fixed central spindle；
Pull bar, it is connected through the small openend of thin-walled parts with described dismounting pad, for pulling the dismounting pad to make it Depart from the fixed central spindle.
Pull bar 4 pulls manually.
Embodiment 2, pull bar 4 coordinate lathe to pull：
A kind of fixed provision for disengagement of thin-walled parts hot charging processing, including：
Fixed central spindle 1, there is the cylindrical 1a of mandrel, the big opening end insertion fixed central spindle of hot worked thin-walled parts, cooling Afterwards, cylindrical shape thin-walled is held tightly on mandrel is cylindrical；
Pad 2 is dismantled, is flexibly connected with described fixed central spindle 1, it is driven between fixed central spindle 1 and thin-walled parts 3 Described thin-walled parts are made to depart from fixed central spindle；
Pull bar, it is connected through the small openend of thin-walled parts with described dismounting pad, for pulling the dismounting pad to make it Depart from the fixed central spindle.
As in Figure 2-4, the fixed central spindle 1, pull bar 4 can coordinate machine, realize automation, the fixed central spindle 1 is assemblied on machine tool chief axis three-jaw.The pull bar 4 is assemblied on lathe cutter saddle, pull bar 4 is pulled by lathe, so as to help to tear open Unload pad 2 and depart from fixed central spindle 1.
It is preferred that the center of the fixed central spindle 1 is provided with pilot hole 1b, the dismounting pad 2 is provided with can Match the assembly side in plugging in fitting hole.Connected by snap fit, pad 2 easy to disassemble departs from fixed core in the presence of pull bar 4 Axle 1.
It is preferred that the dismounting pad 2 has two concentric round platforms, the external diameter of the first round platform and pilot hole Internal diameter matches, and is fixed on described fixed central spindle 1 for will dismantle pad 2, the external diameter of the second round platform is with the cylindrical 1a's of mandrel External diameter is suitable, so dismantles pad 2 and may also function as the effects of fixed thin-walled parts, and except before this, the diameter of the second round platform is more than the The diameter of one round platform, the circular end face of the second round platform is stress surface, is in contact with the reducing end face of thin-walled parts, promotes reducing end Face so that thin-walled parts depart from fixed central spindle 1.
It is preferred that the pull bar is connected through a screw thread with fixed central spindle.The center of the dismounting pad is provided with Screwed hole 2a, the near-end of the pull bar are provided with connection screw thread 4a, the mode of threaded connection, are easy to separate dismounting pad with pull bar, It is easy to dismounting pad assembling in fixed central spindle.
It is preferred that the pull bar is assemblied on lathe cutter saddle by connecting rod, the pull bar is connected with being formed at The cavity at bar center is slidably connected, and the distal end of the connecting rod is installed on lathe cutter saddle.Drawing is can be manually rotated in this way, can realize Bar, it is set to be screwed into screwed hole 2a, lathe cutter saddle pulls pull bar automatically, and help dismantles pad and departs from fixed central spindle 1, so as to play Dismantle the effect of thin-walled parts.
It is preferred that the end of the fixed central spindle is provided with the defining flange 6 for being used for limiting thin-walled parts position, institute Stating defining flange and being arranged on the cylindrical end of mandrel can specifically be limited the position of thin-walled parts, be easy to following process.
Working method：
Step (1), thin-walled parts are put into electrical heating baking oven and heat the regular hour, by it after heat parts expansion Take out baking oven；
Step (2), dismounting is padded and loads mandrel；
Thin-walled parts are loaded mandrel by step (3) while hot；
Step (4), after thin-walled parts shrinkage and the cylindrical interference of mandrel are held tightly, the external form of thin-walled parts is processed；
Step (5), dismounting pad is driven by pull bar, thin-walled parts are removed from mandrel, completes part dismounting.
It is preferred that shown method of work comprises the following steps：
As shown in Figure 2 by the clamping of mandrel 1 of the device on machine tool chief axis three-jaw, pull bar 4 will even after being assembled with connecting rod 5 Extension bar 5 is fixed on lathe cutter saddle.Thin-walled parts 3 are put into electrical heating baking oven simultaneously and heat the regular hour, treat that part adds Baking oven is drawn off after thermal expansion.Pad 2 will first be dismantled to be fitted into the pilot hole 1b that mandrel 1 pads with dismounting, while hot by thin-walled parts 3 Load mandrel 1.With the gradual shrinkage and cylindrical 1a (size is slightly larger than thin-walled parts inner chamber) interference of mandrel 1 of thin-walled parts 3 Hold tightly, the external form of thin-walled parts 3 can then be machined.
After the completion of Vehicle Processing, the cutter spacing where pull bar 4 is adjusted to machine tool chief axis center as shown in Figure 2, to thin-walled zero The end face certain position of part 3, pull bar 4 is screwed in the screwed hole 2a at 2 centers of dismounting pad manually.
As shown in figure 3, using the slow follow rest of machine tool program, connecting rod 5 and pull bar 4 can drive dismounting pad 2 by thin-walled Part 3 is removed from mandrel 2, completes the dismounting of part.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (11)

  1. A kind of 1. fixed provision for disengagement of thin-walled parts hot charging processing, it is characterised in that including：
    Fixed central spindle, have the mandrel to match with thin-walled parts cylindrical；
    Dismounting pad, be flexibly connected with described fixed central spindle, between fixed central spindle and thin-walled parts, it is driven make it is described Thin-walled parts depart from fixed central spindle；
    Pull bar, it is connected through thin-walled parts opening with described dismounting pad, it is described solid for pulling the dismounting pad to disengage it from Centering spindle.
  2. A kind of 2. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the fixation Mandrel is assemblied on machine tool chief axis three-jaw.
  3. A kind of 3. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the fixation The center of mandrel is provided with pilot hole, and the dismounting pad is provided with the assembly side that can match plugging in fitting hole.
  4. A kind of 4. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the dismounting Pad has two concentric round platforms, and the gap of the first round platform and the pilot hole coordinates, and the external diameter of the second round platform is less than mandrel Cylindrical external diameter.
  5. A kind of 5. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the dismounting The center of pad is provided with screwed hole, and the pull bar corresponding end is provided with the connection screw thread to match with the screwed hole.
  6. A kind of 6. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the pull bar End be provided with handle.
  7. A kind of 7. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the pull bar It is assemblied on lathe cutter saddle.
  8. A kind of 8. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the pull bar It is assemblied in by connecting rod on lathe cutter saddle, cavity is provided with the connecting rod, end forms the opening passed through for pull bar, described The end of pull bar is fixed with sliding block, and the sliding block does not emerge in opening, and described cavity is slidably connected, can be in cavity Rotate, the distal end of the connecting rod is installed on lathe cutter saddle.
  9. A kind of 9. fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, it is characterised in that the fixation The end of mandrel is provided with the defining flange for being used for limiting thin-walled parts position, and the defining flange is arranged on the cylindrical end of mandrel Portion.
  10. 10. based on a kind of processing method of the fixed provision for disengagement of thin-walled parts hot charging processing as claimed in claim 1, including Following steps：
    Step 1, thin-walled parts are put into electrical heating baking oven and heat the scheduled time, be drawn off drying after heat parts expansion Case；
    Step 2, dismounting is padded and loads mandrel；
    Step 3, thin-walled parts are loaded into mandrel while hot；
    Step 4, after thin-walled parts shrinkage and the cylindrical interference of mandrel are held tightly, the external form of thin-walled parts is processed；
    Step 5, dismounting pad is driven by pull bar, thin-walled parts is removed from mandrel, complete part dismounting.
  11. 11. processing method as claimed in claim 10, it is characterised in that the step 5 is specially：Pull bar is screwed in into dismounting pad The screwed hole at center, mobile machine tool knife rest, connecting rod and pull bar can drive dismounting pad to remove thin-walled parts from mandrel, complete The dismounting of part.
CN201710987274.8A 2017-10-20 2017-10-20 Fixed dismounting device and fixed dismounting method for hot-set machining of thin-wall part Active CN107695754B (en)

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CN201710987274.8A CN107695754B (en) 2017-10-20 2017-10-20 Fixed dismounting device and fixed dismounting method for hot-set machining of thin-wall part

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CN107695754B CN107695754B (en) 2023-09-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109015058A (en) * 2018-07-13 2018-12-18 株洲硬质合金集团有限公司 Assembly and disassembly method and device for micron order intensely processed products
CN111546289A (en) * 2020-04-28 2020-08-18 成都谦睿哲环保科技有限公司 Disassembly mechanism of filter screen plate mechanism
CN113997009A (en) * 2021-10-26 2022-02-01 宣城市雍基超镜面精密机械制造有限公司 Forming method of light thin-wall aluminum guide roller

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6629480B1 (en) * 1999-11-26 2003-10-07 E.P.D. Device for assembly of tools in tool carriers by thermal expansion and preadjustment and measurement of the mounted assembly
CN105014230A (en) * 2015-08-07 2015-11-04 江苏通宇钢管集团有限公司 Aluminum alloy pipe end seal-welding device and welding method
CN106625061A (en) * 2015-10-30 2017-05-10 北京实验工厂 Grinding method for excircle of inner hole of ultraprecise thin-wall shaft sleeve part
CN207606567U (en) * 2017-10-20 2018-07-13 中核(天津)科技发展有限公司 A kind of fixed provision for disengagement of thin-walled parts hot charging processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6629480B1 (en) * 1999-11-26 2003-10-07 E.P.D. Device for assembly of tools in tool carriers by thermal expansion and preadjustment and measurement of the mounted assembly
CN105014230A (en) * 2015-08-07 2015-11-04 江苏通宇钢管集团有限公司 Aluminum alloy pipe end seal-welding device and welding method
CN106625061A (en) * 2015-10-30 2017-05-10 北京实验工厂 Grinding method for excircle of inner hole of ultraprecise thin-wall shaft sleeve part
CN207606567U (en) * 2017-10-20 2018-07-13 中核(天津)科技发展有限公司 A kind of fixed provision for disengagement of thin-walled parts hot charging processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109015058A (en) * 2018-07-13 2018-12-18 株洲硬质合金集团有限公司 Assembly and disassembly method and device for micron order intensely processed products
CN111546289A (en) * 2020-04-28 2020-08-18 成都谦睿哲环保科技有限公司 Disassembly mechanism of filter screen plate mechanism
CN113997009A (en) * 2021-10-26 2022-02-01 宣城市雍基超镜面精密机械制造有限公司 Forming method of light thin-wall aluminum guide roller

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