CN104175103B - A kind of device and method for assembling piston wire circlip - Google Patents
A kind of device and method for assembling piston wire circlip Download PDFInfo
- Publication number
- CN104175103B CN104175103B CN201410374392.8A CN201410374392A CN104175103B CN 104175103 B CN104175103 B CN 104175103B CN 201410374392 A CN201410374392 A CN 201410374392A CN 104175103 B CN104175103 B CN 104175103B
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- CN
- China
- Prior art keywords
- piston
- wire circlip
- tapered sleeve
- push rod
- assembling
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Classifications
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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
- 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
- B23P19/027—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 using hydraulic or pneumatic means
Abstract
The invention provides a kind of device and method for assembling piston wire circlip.The device of described assembling piston wire circlip, it is characterized in that, including tapered sleeve and the feed mechanism that wire circlip can be sent in tapered sleeve, centrepin and compensating squeeze head are provided with above tapered sleeve, centrepin relative can move up and down with compensating squeeze head, the lower section of tapered sleeve, which is provided with, to be used to lay piston and supports the fixed seat of piston rod, and being provided with described fixed seat can move up and down and can hold the lower push rod of wire circlip tightly together with piston pin.The present invention can effectively prevent the tension force effect of wire circlip from scratching piston hole inwall, ensure that assembling quality well, apply generally to the assembling of all wire circlip base parts, and cost is low, practical, and press fitting quality is high.
Description
Technical field
The present invention relates to the device and method of assembling piston wire circlip, suitable for the assembling of wire circlip class part, especially
It is automobile power assembly assembly line industry.
Background technology
The piston pin of engine is allowed to be maintained in piston using wire circlip, typically conventional press-fit approach, its principle
Using the cooperation of compensating squeeze head and tapered sleeve, wire circlip to be shunk in place first, is then pressed into the jump-ring slot of piston hole again
It is interior.The wire circlip of reset condition is pushed into tapered sleeve aperture by feed mechanism；Centre pilot pin is first descending, utilizes piston pin center
Taper hole correcting piston position, ensure that piston hole and press fitting tapered sleeve are coaxial；Elastic paw is descending, pushes wire circlip and is entered by tapered sleeve
Enter into the neck of piston hole；Press fitting is completed, and each part returns in situ.Its shortcoming is：By the size of workpiece is limited, tapered sleeve without
Method extend into the inside of piston hole, can only rest on the top of piston hole, so, when wire circlip enters piston by taper hole
When in hole, due to tension force effect, sharp steel wire port can be caused to scratch piston hole inwall, influence to assemble quality.Therefore, this
Invention is improved on the basis of principle, solves the problem well.
The content of the invention
The purpose of the present invention is to overcome above mentioned problem, there is provided a kind of new assembling piston that can greatly improve assembling quality
The device and method of wire circlip.
In order to achieve the above object, the invention provides a kind of device for assembling piston wire circlip, it is characterised in that bag
Tapered sleeve and the feed mechanism that wire circlip can be sent in tapered sleeve are included, centrepin and compensating squeeze head, center are provided with above tapered sleeve
Pin relative can be moved up and down with compensating squeeze head, and the lower section of tapered sleeve, which is provided with, to be used to lay piston and support the fixed seat of piston rod,
Being provided with described fixed seat can move up and down and can hold the lower push rod of wire circlip tightly together with piston pin.
Preferably, when piston is placed in fixed seat, piston is positioned by lower push rod.
Preferably, gap is left between described tapered sleeve and compensating squeeze head, ensures that feed mechanism can be reset condition
Wire circlip is sent into tapered sleeve.
Preferably, described centrepin and centrepin control cylinders, by centrepin control cylinder driving centrepin
Lower movement.
Preferably, described compensating squeeze head and compensating squeeze head control cylinders, by compensating squeeze head control cylinder driving bullet
Property pressure head moves up and down.
It is connected it is highly preferred that described compensating squeeze head tightens bolt with compensating squeeze head control cylinder by compensating squeeze head.
Preferably, the lower end of described compensating squeeze head is provided with the groove corresponding with wire circlip shape.
Preferably, described lower push rod and lower push rod control cylinders, by lower push rod control cylinder control lower push rod
Lower movement.
It is highly preferred that the device of described assembling piston wire circlip also includes lower push rod travel control switch, work as steel wire
When jump ring reaches the jump-ring slot of piston hole, lower push rod travel control switch sends signal, lower push rod control cylinder driving lower push rod
It is descending.
Present invention also offers a kind of method for assembling piston wire circlip, it is characterised in that is lived using above-mentioned assembling
The device of wire circlip is filled in, specific steps include：
Step 1：First piston is put into fixed seat, it is necessary to be pressed the face-up of wire circlip；
Step 2：The feed mechanism of wire circlip is sent to the wire circlip of reset condition in tapered sleeve, and wire circlip is located at
The opening of tapered sleeve；
Step 3：Centrepin moves downward stroke, and at this moment correcting piston pin makes it coaxial with centrepin to centrepin；
Step 4：Lower push rod jacks up the straight mouth that piston pin makes it into tapered sleeve with the strength more than pressure under centrepin upwards
Position；
Step 5：Compensating squeeze head starts descending, and promotes wire circlip descending in tapered sleeve, because tapered sleeve endoporus is taper,
Wire circlip is tightened in the process；
Step 6：Compensating squeeze head with piston pin embrace wire circlip together with it is descending；
Step 7：When wire circlip reaches the jump-ring slot of piston hole, compensating squeeze head is no longer descending, and lower push rod is descending, is held tightly
Wire circlip just automatically open up, enter in jump-ring slot, complete piston wire circlip assembling.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can effectively prevent the tension force effect of wire circlip from scratching piston hole inwall, ensure that good assembling
Quality, the assembling of all wire circlip base parts is applied generally to, cost is low, practical, and press fitting quality is high.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of assembling piston wire circlip；
Fig. 2 is schematic diagram when elastic paw holds wire circlip tightly with piston pin；
Schematic diagram when Fig. 3 is press fitting Circlip apparatus initial state and is press-fit into place；
Fig. 4 is Fig. 1 partial enlarged drawing；
Fig. 5 is the detailed view of piston firm banking；
Fig. 6 is the profile of tapered sleeve；
Fig. 7 a are the part drawing of compensating squeeze head；
Fig. 7 b are the partial enlarged drawing of compensating squeeze head.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment
As shown in figure 1, to assemble the apparatus structure schematic diagram of piston wire circlip, described assembling piston wire circlip
Device includes tapered sleeve 5 and the feed mechanism 3 that can be sent wire circlip 4 in tapered sleeve 5, and the top of tapered sleeve 5 is provided with centrepin 1 and bullet
Property pressure head 2, centrepin 1 and compensating squeeze head 2 are each independent, can slide up and down relatively, and the lower section of tapered sleeve 5, which is provided with, to be used to lay work
Fill in and support the fixed seat 6 of piston rod, as shown in Fig. 2 being provided with described fixed seat 6 can move up and down and can be with work
Plug pin holds the lower push rod 7 of wire circlip tightly together.When piston is placed in fixed seat 6, piston is positioned by lower push rod 7.
As shown in figure 4, leaving gap between described tapered sleeve 5 and compensating squeeze head 2, ensure that feed mechanism 3 can be original
The wire circlip 4 of state is sent into tapered sleeve 5.As shown in figure 3, described centrepin 1 is connected with centrepin control cylinder 8, by center
Pin control cylinder 8 drives centrepin 1 to move up and down.Described compensating squeeze head 2 is connected with compensating squeeze head control cylinder 9, by elasticity
Pressure head control cylinder 9 drives compensating squeeze head 2 to move up and down.Described compensating squeeze head 2 passes through elasticity with compensating squeeze head control cylinder 9
Pressure head is tightened bolt 10 and is connected.As illustrated in figs. 7 a and 7b, the lower end of described compensating squeeze head 2 is provided with and the shape phase of wire circlip 4
Corresponding groove 13, it is easy to wire circlip to be opened after being forced out tapered sleeve 5.As shown in fig. 6, tapered sleeve 5 makes for tightening up compensating squeeze head 2
It tightens up wire circlip 4 so that wire circlip 4 is just tightened up in the groove of compensating squeeze head lower end.It is as shown in figure 5, described
Lower push rod 7 is connected with lower push rod control cylinder 11, controls lower push rod 7 to move up and down by lower push rod control cylinder 11, lower push rod control
Cylinder 11 processed, for driving lower push rod 7 so as to realize that compensating squeeze head 2 holds wire circlip tightly with piston pin, so as to improve assembling matter
Amount and the limitation of customer service workpiece size.The device of described assembling piston wire circlip also includes being used for the stroke for sensing lower push rod 7
Lower push rod travel control switch 12, when wire circlip 4 reach piston hole jump-ring slot when, lower push rod travel control switch 12 is sent out
Go out signal, lower push rod control cylinder 11 drives lower push rod 7 descending, so as to ensure the press fitting quality of piston circlip.
Using the method for the device assembling piston wire circlip of above-mentioned assembling piston wire circlip, concretely comprise the following steps：
Step 1：First piston is put into fixed seat 6, it is necessary to be pressed the face-up of wire circlip 4；
Step 2：The feed mechanism 3 of wire circlip is sent to the wire circlip 4 of reset condition in tapered sleeve 5, wire circlip 4
Located at the opening of tapered sleeve 5；
Step 3：Centrepin 1 moves downward stroke L1 under the driving of centrepin control cylinder 8, and at this moment centrepin 1 has been
Correcting piston pin makes it coaxial with centrepin 1；
Step 4：Lower push rod 7 is upward with the strength more than 1 time pressure of centrepin in the presence of lower push rod controls cylinder 11
Jack up the straight oral area position that piston pin makes it into tapered sleeve 5；
Step 5：Compensating squeeze head 2 starts descending under the driving of compensating squeeze head control cylinder 9, and promotes jump ring in tapered sleeve 5
In it is descending, because the endoporus of tapered sleeve 5 is taper, jump ring is tightened in the process；
Step 6：Compensating squeeze head 2 and the jump ring being tightened are embraced under the driving of compensating squeeze head control cylinder 9 with piston pin
Wire circlip 4 is descending together；
Step 7：When wire circlip 4 reaches the jump-ring slot of piston hole, compensating squeeze head 2 is no longer descending, the sensing of the stroke of lower push rod 7
Switch 12 sends signal, and lower push rod control cylinder 11 is died, and lower push rod 7 is descending, and the wire circlip 4 held tightly just automatically opens up,
Enter in jump-ring slot, complete the assembling of piston wire circlip.
Device provided by the invention overcomes the deficiencies in the prior art, and jump ring is held tightly together with piston pin using compensating squeeze head
It is descending, the limitation of workpiece size is overcome, substantially increases press fitting quality, applies generally to the dress of all wire circlip base parts
Match somebody with somebody, cost is low, practical, and compensating squeeze head is single part, and tighten bolt by compensating squeeze head fills with miscellaneous part
Match somebody with somebody, be easily changed after abrasion.
Claims (9)
1. a kind of device for assembling piston wire circlip, it is characterised in that including tapered sleeve（5）With can be wire circlip（4）Send
To tapered sleeve（5）In feed mechanism（3）, tapered sleeve（5）Top is provided with centrepin（1）With compensating squeeze head（2）, centrepin（1）With bullet
Property pressure head（2）Relative it can move up and down, tapered sleeve（5）Lower section be provided with and be used to lay piston and support the fixed seat of piston rod
（6）, described fixed seat（6）In be provided with can move up and down and the lower push rod of wire circlip can be held tightly together with piston pin
（7）；Described compensating squeeze head（2）Lower end be provided with and wire circlip（4）The corresponding groove of shape（13）.
2. the device of assembling piston wire circlip as claimed in claim 1, it is characterised in that when piston is placed in fixed seat
（6）When upper, piston passes through lower push rod（7）Positioning.
3. the device of assembling piston wire circlip as claimed in claim 1, it is characterised in that described tapered sleeve（5）With elasticity
Pressure head（2）Between leave gap, ensure feed mechanism（3）Can be the wire circlip of reset condition（4）It is sent into tapered sleeve（5）.
4. the device of assembling piston wire circlip as claimed in claim 1, it is characterised in that described centrepin（1）With in
Heart pin controls cylinder（8）It is connected, cylinder is controlled by centrepin（8）Drive centrepin（1）Move up and down.
5. the device of assembling piston wire circlip as claimed in claim 1, it is characterised in that described compensating squeeze head（2）With
Compensating squeeze head controls cylinder（9）It is connected, cylinder is controlled by compensating squeeze head（9）Drive compensating squeeze head（2）Move up and down.
6. the device of assembling piston wire circlip as claimed in claim 5, it is characterised in that described compensating squeeze head（2）With
Compensating squeeze head controls cylinder（9）Bolt is tightened by compensating squeeze head（10）It is connected.
7. the device of assembling piston wire circlip as claimed in claim 1, it is characterised in that described lower push rod（7）With under
Push rod controls cylinder（11）It is connected, cylinder is controlled by lower push rod（11）Control lower push rod（7）Move up and down.
8. the device of assembling piston wire circlip as claimed in claim 7, it is characterised in that described assembling piston steel wire card
The device of spring also includes lower push rod travel control switch（12）, when wire circlip (4) reaches the jump-ring slot of piston hole, lower push rod
Travel control switch（12）Send signal, lower push rod control cylinder（11）Drive lower push rod（7）It is descending.
A kind of 9. method for assembling piston wire circlip, it is characterised in that using the assembling any one of claim 1-8
The device of piston wire circlip, specific steps include：
Step 1：Piston is first put into fixed seat（6）Above, it is necessary to be pressed wire circlip（4）It is face-up；
Step 2：The feed mechanism of wire circlip（3）The wire circlip of reset condition（4）It is sent to tapered sleeve（5）In, steel wire card
Spring（4）Located at tapered sleeve（5）Opening；
Step 3：Centrepin（1）Stroke L1 is moved downward, at this moment centrepin（1）Correcting piston pin makes itself and centrepin（1）
Coaxially；
Step 4：Lower push rod（7）With more than centrepin（1）The strength of lower pressure jacks up piston pin and makes it into tapered sleeve upwards（5）'s
Straight oral area position；
Step 5：Compensating squeeze head（2）Start descending, and promote wire circlip（4）In tapered sleeve（5）In it is descending, due to tapered sleeve（5）It is interior
Hole is taper, wire circlip（4）It is tightened in the process；
Step 6：Compensating squeeze head（2）Wire circlip is embraced with piston pin（4）It is descending together；
Step 7：Wire circlip（4）When reaching the jump-ring slot of piston hole, compensating squeeze head（2）It is no longer descending, lower push rod（7）It is descending,
The wire circlip held tightly（4）Just automatically open up, enter in jump-ring slot, complete the assembling of piston wire circlip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374392.8A CN104175103B (en) | 2014-07-31 | 2014-07-31 | A kind of device and method for assembling piston wire circlip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374392.8A CN104175103B (en) | 2014-07-31 | 2014-07-31 | A kind of device and method for assembling piston wire circlip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104175103A CN104175103A (en) | 2014-12-03 |
| CN104175103B true CN104175103B (en) | 2017-11-14 |
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ID=51956603
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374392.8A Active CN104175103B (en) | 2014-07-31 | 2014-07-31 | A kind of device and method for assembling piston wire circlip |
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| CN (1) | CN104175103B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067860B (en) * | 2017-12-14 | 2019-11-05 | 博众精工科技股份有限公司 | Turnover type wire circlip transfer device |
| CN108247323A (en) * | 2018-02-02 | 2018-07-06 | 安徽江淮汽车集团股份有限公司 | Snap ring assembly tool |
| CN108340146B (en) * | 2018-02-06 | 2019-10-15 | 姜棋 | A kind of piston circlip fitting machine and operating method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810996A (en) * | 1956-06-25 | 1959-03-25 | Waldes Kohinoor Inc | Improvements in or relating to apparatus for assembling retaining rings in grooves |
| CN101386166B (en) * | 2008-06-10 | 2010-09-15 | 许晓华 | Internal circlip press-loading device |
| CN203221332U (en) * | 2013-03-13 | 2013-10-02 | 吴康伟 | Full-automatic snap spring assembly machine |
| CN103406750A (en) * | 2013-08-05 | 2013-11-27 | 上海希力自动化设备有限公司 | Piston pin clamping spring press fitting and detection all-in-one machine |
| CN103639686B (en) * | 2013-11-20 | 2015-10-28 | 杭州沃镭科技有限公司 | Main brake valve jump ring feeding press-loading apparatus and pressing method |
| CN204295254U (en) * | 2014-07-31 | 2015-04-29 | 柯马(上海)工程有限公司 | The device of assembling piston wire circlip |
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2014
- 2014-07-31 CN CN201410374392.8A patent/CN104175103B/en active Active
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|---|---|
| CN104175103A (en) | 2014-12-03 |
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