CN107081588A - The pressing method of thin and long shafts part - Google Patents
The pressing method of thin and long shafts part Download PDFInfo
- Publication number
- CN107081588A CN107081588A CN201710485277.1A CN201710485277A CN107081588A CN 107081588 A CN107081588 A CN 107081588A CN 201710485277 A CN201710485277 A CN 201710485277A CN 107081588 A CN107081588 A CN 107081588A
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- CN
- China
- Prior art keywords
- press
- thin
- pressing
- long shafts
- pressing head
- 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
- 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
Abstract
The present invention relates to a kind of pressing method of thin and long shafts part, it comprises the following steps：Pressing machine is started working, when pressing head of packing press is depressed into position S1 with thin and long shafts part, starts monitoring pressure assembling force F1；When pressing head of packing press continues to be depressed at the S2 of position with thin and long shafts part, the pressure assembling force F2 at mark position S2；Pressing head of packing press, when pressure assembling force is equal to F3, marks now position S3 with thin and long shafts part backtracking；The final depressed position value S5 that compensation press-fits value H and pressing head of packing press is calculated, formula is H=F2/ ((F2 F3)/(S2 S3)), S5=S4+H；The final depressed position value S5 of pressing head of packing press is inputted into pressing machine；Pressing head of packing press presses to position S5 with thin and long shafts part, and pressing head of packing press unclamps thin and long shafts part, press-fits end, pressing head of packing press retracts reset.The present invention method press-fit reliably, efficiency is higher, fraction defective is low and will not change the original performance of product.
Description
Technical field
The present invention relates to a kind of component assembling method, present invention relates especially to a kind of side of press-fiting of thin and long shafts part
Method.
Background technology
The assembly of thin and long shafts part and Model For The Bush-axle Type Parts, is typically refused using the interference fit of axle and axle sleeve to transmit torsion
Either gap coordinates along with positioning pin connection is refused to transmit torsion, and conventional interference fit method is exactly dead with pressing machine
Workpiece is press fit into target location by spacing mode, or heating Model For The Bush-axle Type Parts make its internal diameter become big or make shaft sleeve
Part softening ensures fitted position so as to reduce press-fiting pressure.Using dead spacing pressing method to the coherence request of product very
Height, the magnitude of interference of part must be controlled in the excursion of very little, and the disadvantage of this method is exactly that production cost is higher, no
Fraction defective after then press-fiting is very high, and secondary workpiece is a lot, and part of doing over again also is not easily controlled, therefore brings very strong wind to quality
Danger.Another is the pressing method for heating Model For The Bush-axle Type Parts, although press mounting dimension is easily controlled, but heating easily makes axle sleeve
Class part deformation, and for the product that mechanical property is required, heating is possible to that the performance of product can be changed, and easily brings latent
Quality risk.
The content of the invention
The purpose of the present invention be overcome the deficiencies in the prior art there is provided one kind press-fit reliably, efficiency it is higher and not
Change the pressing method of the thin and long shafts part of the original performance of product.
The technical scheme provided according to the present invention, the pressing method of the thin and long shafts part comprises the following steps：
The first step：Pressing clamp is fixed on the work top of pressing machine；
Second step：Axle sleeve is loaded in pressing clamp, by thin and long shafts part on pressing machine head；
3rd step：The target of setting pressing machine head press-fits position S4, starting pressure assembling force monitoring position S1 and rollback pressure assembling force and supervised
Control value F3；
4th step：Pressing machine is started working, and pressing head of packing press starts to push with thin and long shafts part；
4th step：When pressing head of packing press is depressed into position S1 with thin and long shafts part, start monitoring pressure assembling force F1；
5th step：When pressing head of packing press continues to be depressed at the S2 of position with thin and long shafts part, the pressure at mark position S2
Fill power F2；
6th step：Pressing head of packing press constantly reduces with thin and long shafts part backtracking, now pressure assembling force, when pressure assembling force is equal to
During F3, now position S3 is marked；
7th step：Calculate compensation and press-fit the final depressed position value S5 of value H and pressing head of packing press, formula for H=F2/ ((F2-F3)/
(S2-S3)), S5=S4+H；
8th step：The final depressed position value S5 of pressing head of packing press is inputted into pressing machine；
9th step：Pressing head of packing press presses to position S5 with thin and long shafts part, and pressing head of packing press unclamps thin and long shafts part,
Press-fit end, pressing head of packing press retracts reset.
The present invention method press-fit reliably, efficiency is higher, fraction defective is low and will not change the original performance of product.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A kind of pressing method of thin and long shafts part comprises the following steps：
The first step：On the work top that pressing clamp 4 is fixed on to pressing machine 5；
Second step：Axle sleeve 2 is loaded in pressing clamp 4, by thin and long shafts part 1 on pressing machine head 3；The thin and long shafts
A diameter of 15mm of part 1, the length of thin and long shafts part 1 is 320mm, the required precision h7 of thin and long shafts part 1；This is elongated
Axle sleeve 2 of the axial workpiece 1 with the magnitude of interference in 0.01 ~ 0.02mm is assembled, and press-fits required precision for 0.2mm；
3rd step：The target of setting pressing machine head 3 press-fits position S4, starting pressure assembling force monitoring position S1 and rollback pressure assembling force and supervised
Control value F3；
4th step：Pressing machine is started working, and pressing head of packing press 3 starts to push with thin and long shafts part 1；
4th step：When pressing head of packing press 3 is depressed into position S1 with thin and long shafts part 1, start monitoring pressure assembling force F1；
5th step：When pressing head of packing press 3 continues to be depressed at the S2 of position with thin and long shafts part 1, at mark position S2
Pressure assembling force F2；
6th step：Pressing head of packing press 3 constantly reduces with the backtracking of thin and long shafts part 1, now pressure assembling force, when pressure assembling force etc.
When F3, now position S3 is marked；
7th step：The final depressed position value S5 that compensation press-fits value H and pressing head of packing press 3 is calculated, formula is H=F2/ ((F2-
F3)/(S2-S3)), S5=S4+H；
8th step：The final depressed position value S5 of pressing head of packing press 3 is inputted into pressing machine 5；
9th step：Pressing head of packing press 3 presses to position S5 with thin and long shafts part 1, and pressing head of packing press 3 unclamps thin and long shafts zero
Part 1, press-fits end, and pressing head of packing press 3 retracts reset.
After being press-fited using the method for embodiment 1 to a collection of thin and long shafts part 1 and axle sleeve 2, fraction defective is 5% ~ 10%,
And the fraction defective of traditional pressing method is used for 40% ~ 50%；So, method of the invention greatly reduces fraction defective, Er Qieben
The method of invention has the advantages that step is simple, easily operated.
Claims (1)
1. a kind of pressing method of thin and long shafts part, it is characterized in that this method comprises the following steps：
The first step：By pressing clamp（4）It is fixed on pressing machine（5）Work top on；
Second step：By axle sleeve（2）Load pressing clamp（4）It is interior, by thin and long shafts part（1）Mounted in pressing machine head（3）On；
3rd step：Set pressing machine head（3）Target press-fit position S4, starting pressure assembling force monitoring position S1 and rollback pressure assembling force
Monitoring value F3；
4th step：Pressing machine is started working, pressing head of packing press（3）With thin and long shafts part（1）Start to push；
4th step：Work as pressing head of packing press（3）With thin and long shafts part（1）When being depressed into position S1, start monitoring pressure assembling force F1；
5th step：Work as pressing head of packing press（3）With thin and long shafts part（1）When continuing to be depressed at the S2 of position, mark position S2
The pressure assembling force F2 at place；
6th step：Pressing head of packing press（3）With thin and long shafts part（1）Backtracking, now pressure assembling force constantly reduce, when press-fiting
When power is equal to F3, now position S3 is marked；
7th step：Calculate compensation and press-fit value H and pressing head of packing press（3）Final depressed position value S5, formula be H=F2/ ((F2-
F3)/(S2-S3)), S5=S4+H；
8th step：By pressing head of packing press（3）Final depressed position value S5 input pressing machine（5）；
9th step：Pressing head of packing press（3）With thin and long shafts part（1）Press to position S5, pressing head of packing press（3）Unclamp elongated
Axial workpiece（1）, press-fit end, pressing head of packing press（3）Retract reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485277.1A CN107081588A (en) | 2017-06-23 | 2017-06-23 | The pressing method of thin and long shafts part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485277.1A CN107081588A (en) | 2017-06-23 | 2017-06-23 | The pressing method of thin and long shafts part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107081588A true CN107081588A (en) | 2017-08-22 |
Family
ID=59607070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710485277.1A Pending CN107081588A (en) | 2017-06-23 | 2017-06-23 | The pressing method of thin and long shafts part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107081588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732658A (en) * | 2021-08-03 | 2021-12-03 | 东风汽车集团股份有限公司 | Shaft part press-fitting equipment and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395845Y (en) * | 1997-04-16 | 2000-09-13 | 铁道部四方车辆研究所 | Pressure-displacement type observing and controlling device for bearing pressing and mounting machine |
| US20080043304A1 (en) * | 2006-06-02 | 2008-02-21 | Microzeus Llc | Methods and systems for micro transmissions |
| CN101176967A (en) * | 2007-12-10 | 2008-05-14 | 广州市嘉特斯机电制造有限公司 | Bearing press-in device and method of use thereof |
| CN101288934A (en) * | 2007-04-16 | 2008-10-22 | 浙江三花制冷集团有限公司 | Servo press mounting device for monitoring press mounting force and displacement |
| CN101539648A (en) * | 2009-04-28 | 2009-09-23 | 四川飞普科技有限公司 | Method and equipment for automatically controlling press mounting of assembly part |
| CN103567701A (en) * | 2013-11-07 | 2014-02-12 | 耐世特汽车系统（苏州）有限公司 | Method for installing elastic part |
| CN106378607A (en) * | 2016-10-18 | 2017-02-08 | 南京航空航天大学 | Shaft hole interference assembly automatic press mounting device and method |
-
2017
- 2017-06-23 CN CN201710485277.1A patent/CN107081588A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395845Y (en) * | 1997-04-16 | 2000-09-13 | 铁道部四方车辆研究所 | Pressure-displacement type observing and controlling device for bearing pressing and mounting machine |
| US20080043304A1 (en) * | 2006-06-02 | 2008-02-21 | Microzeus Llc | Methods and systems for micro transmissions |
| CN101288934A (en) * | 2007-04-16 | 2008-10-22 | 浙江三花制冷集团有限公司 | Servo press mounting device for monitoring press mounting force and displacement |
| CN101176967A (en) * | 2007-12-10 | 2008-05-14 | 广州市嘉特斯机电制造有限公司 | Bearing press-in device and method of use thereof |
| CN101539648A (en) * | 2009-04-28 | 2009-09-23 | 四川飞普科技有限公司 | Method and equipment for automatically controlling press mounting of assembly part |
| CN103567701A (en) * | 2013-11-07 | 2014-02-12 | 耐世特汽车系统（苏州）有限公司 | Method for installing elastic part |
| CN106378607A (en) * | 2016-10-18 | 2017-02-08 | 南京航空航天大学 | Shaft hole interference assembly automatic press mounting device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732658A (en) * | 2021-08-03 | 2021-12-03 | 东风汽车集团股份有限公司 | Shaft part press-fitting equipment and control method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214199 Liguo Industrial Park, Donggang Town, Xishan District, Wuxi City, Jiangsu Province Applicant after: Jiangsu ZOJE Seiko Polytron Technologies Inc Address before: 214199 Liguo Industrial Park, Donggang Town, Xishan District, Wuxi City, Jiangsu Province Applicant before: Wuxi Zhongjie Vibration Isolators Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |