CN104175103A - Device and method for assembling steelwire snap ring in piston - Google Patents
Device and method for assembling steelwire snap ring in piston Download PDFInfo
- Publication number
- CN104175103A CN104175103A CN201410374392.8A CN201410374392A CN104175103A CN 104175103 A CN104175103 A CN 104175103A CN 201410374392 A CN201410374392 A CN 201410374392A CN 104175103 A CN104175103 A CN 104175103A
- Authority
- CN
- China
- Prior art keywords
- piston
- wire circlip
- push rod
- squeeze head
- compensating squeeze
- 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.)
- Granted
Links
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
- 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 device and a method for assembling a steelwire snap ring in a piston. The device is characterized by comprising a taper sleeve and a feeding mechanism capable of feeding the steelwire snap ring into the taper sleeve; a center pin and an elastic pressure head are arranged above the taper sleeve and can move up and down relative to each other; a fixed seat for placing a piston and supporting a piston connecting rod is arranged below the taper sleeve; a downward jacking rod which can move up and down and clasp the steelwire snap ring together with a piston pin is arranged in the fixed seat. According to the invention, the inner wall of the piston hole is effectively prevented from being scratched by the tension function of the steelwire snap ring, so that good assembly quality is guaranteed, the device is basically suitable for assembling all steelwire snap ring parts, and is low in cost, strong in practicability and high in press-mounting quality.
Description
Technical field
The present invention relates to assemble the device and method of piston wire circlip, be applicable to the assembling of wire circlip class part, especially automobile power assembly assembly line industry.
Background technology
The piston pin of engine adopts wire circlip to make it to remain in piston, general conventional press-fit approach, and its principle is to utilize coordinating of compensating squeeze head and tapered sleeve, first wire circlip contraction is put in place, and then is pressed in the jump-ring slot of piston hole.Feed mechanism is pushed into tapered sleeve aperture the wire circlip of reset condition; Centre pilot pin is first descending, utilizes piston pin center taper hole correcting piston position, ensures piston hole and to press-fit tapered sleeve coaxial; Elasticity paw is descending, is pushing away wire circlip and is entering into by tapered sleeve in the draw-in groove of piston hole; Press-fit each parts reposition.Its shortcoming is: because the size of workpiece is limit, tapered sleeve cannot extend into the inside of piston hole, can only rest on the top of piston hole, like this, in the time that wire circlip enters in piston hole by taper hole, due to tension force effect, can make sharper steel wire port scratch piston hole inwall, affect assembly quality.For this reason, the present invention improves on the basis of principle, has well solved this problem.
Summary of the invention
The object of the invention is to overcome the problems referred to above, a kind of device and method of the novel assembling piston wire circlip that can greatly improve assembly quality is provided.
In order to achieve the above object, the invention provides a kind of device that assembles piston wire circlip, it is characterized in that, comprise tapered sleeve and wire circlip can be delivered to the feed mechanism in tapered sleeve, tapered sleeve top is provided with centrepin and compensating squeeze head, centrepin can move up and down relatively with compensating squeeze head, and the below of tapered sleeve is provided with the holder for laying piston support piston connecting rod, is provided with the lower push rod that can move up and down and can hold wire circlip tightly together with piston pin in described holder.
Preferably, in the time that piston is placed on holder, piston is located by lower push rod.
Preferably, between described tapered sleeve and compensating squeeze head, leave gap, guarantee feed mechanism can be sent the wire circlip of reset condition into tapered sleeve.
Preferably, described centrepin is connected with centrepin control cylinder, drives centrepin to move up and down by centrepin control cylinder.
Preferably, described compensating squeeze head is connected with compensating squeeze head control cylinder, drives compensating squeeze head to move up and down by compensating squeeze head control cylinder.
More preferably, described compensating squeeze head is tighted a bolt and is connected by compensating squeeze head with compensating squeeze head control cylinder.
Preferably, the lower end of described compensating squeeze head is provided with the groove corresponding with wire circlip shape.
Preferably, described lower push rod is connected with lower push rod control cylinder, is moved up and down by lower push rod control cylinder control lower push rod.
More preferably, the device of described assembling piston wire circlip also comprises lower push rod travel control switch, and in the time that wire circlip arrives the jump-ring slot of piston hole, lower push rod travel control switch sends signal, and lower push rod control cylinder drives lower push rod descending.
The present invention also provides a kind of method of assembling piston wire circlip, it is characterized in that, adopts the device of above-mentioned assembling piston wire circlip, and concrete steps comprise:
Step 1: first piston is put on holder, need to press-fits facing up of wire circlip;
Step 2: the feed mechanism of wire circlip is sent to the wire circlip of reset condition in tapered sleeve, wire circlip is located at the opening part of tapered sleeve;
Step 3: centrepin moves downward stroke, at this moment centrepin correcting piston pin make itself and centrepin coaxial;
Step 4: lower push rod with the strength that is greater than centrepin downforce upwards jack-up piston pin make it enter the straight port part of tapered sleeve;
Step 5: compensating squeeze head starts descending, and it is descending in tapered sleeve to promote wire circlip, because tapered sleeve endoporus is taper, wire circlip is tightened up in this process;
Step 6: compensating squeeze head is descending together with embracing wire circlip with piston pin;
Step 7: when wire circlip arrives the jump-ring slot of piston hole, compensating squeeze head is no longer descending, and lower push rod is descending, and the wire circlip of being held tightly is just opened automatically, enters into jump-ring slot, completes the assembling of piston wire circlip.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention can prevent that the tension force effect of wire circlip from scratching piston hole inwall effectively, has ensured good assembly quality, is substantially applicable to the assembling of all wire circlip base parts, and cost is low, practical, press-fits quality high.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of assembling piston wire circlip;
Fig. 2 is elasticity paw and piston pin schematic diagram while holding wire circlip tightly;
Fig. 3 is the schematic diagram when press-fiting Circlip apparatus initial state and being press-fit into place;
Fig. 4 is the partial enlarged drawing of Fig. 1;
Fig. 5 is the detailed view of piston firm banking;
Fig. 6 is the profile of tapered sleeve;
Fig. 7 a is the part drawing of compensating squeeze head;
Fig. 7 b is the partial enlarged drawing of compensating squeeze head.
Detailed description of the invention
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment
As shown in Figure 1, for the apparatus structure schematic diagram of assembling piston wire circlip, the device of described assembling piston wire circlip comprises tapered sleeve 5 and wire circlip 4 can be delivered to the feed mechanism 3 in tapered sleeve 5, tapered sleeve 5 tops are provided with centrepin 1 and compensating squeeze head 2, centrepin 1 is independent separately with compensating squeeze head 2, relatively can slide up and down, the below of tapered sleeve 5 is provided with the holder 6 for laying piston support piston connecting rod, as shown in Figure 2, in described holder 6, be provided with the lower push rod 7 that can move up and down and can hold wire circlip tightly together with piston pin.In the time that piston is placed on holder 6, piston is located by lower push rod 7.
As shown in Figure 4, between described tapered sleeve 5 and compensating squeeze head 2, leave gap, guarantee feed mechanism 3 can be sent the wire circlip of reset condition 4 into tapered sleeve 5.As shown in Figure 3, described centrepin 1 is connected with centrepin control cylinder 8, drives centrepin 1 to move up and down by centrepin control cylinder 8.Described compensating squeeze head 2 is connected with compensating squeeze head control cylinder 9, drives compensating squeeze head 2 to move up and down by compensating squeeze head control cylinder 9.Described compensating squeeze head 2 and compensating squeeze head control cylinder 9 are tighted a bolt and 10 are connected by compensating squeeze head.As shown in Fig. 7 a and 7b, the lower end of described compensating squeeze head 2 is provided with the groove 13 corresponding with wire circlip 4 shapes, is convenient to after wire circlip is forced out tapered sleeve 5 open.As shown in Figure 6, tapered sleeve 5 makes it tighten up wire circlip 4 for tightening up compensating squeeze head 2, and wire circlip 4 is just in time tightened up in the groove of compensating squeeze head lower end.As shown in Figure 5, described lower push rod 7 is connected with lower push rod control cylinder 11, controlling lower push rod 7 by lower push rod control cylinder 11 moves up and down, lower push rod control cylinder 11, hold wire circlip thereby be used for driving lower push rod 7 to realize compensating squeeze head 2 tightly with piston pin, thereby improve assembly quality and the restriction of customer service workpiece size.The device of described assembling piston wire circlip also comprises the lower push rod travel control switch 12 of the stroke for responding to lower push rod 7, in the time that wire circlip 4 arrives the jump-ring slot of piston hole, lower push rod travel control switch 12 sends signal, lower push rod control cylinder 11 drives lower push rod 7 descending, thereby ensures the quality that press-fits of piston circlip.
The method that adopts the device assembling piston wire circlip of above-mentioned assembling piston wire circlip, concrete steps are:
Step 1: first piston is put on holder 6, need to press-fits facing 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, and wire circlip 4 is located at the opening part of tapered sleeve 5;
Step 3: centrepin 1, under the driving of centrepin control cylinder 8, moves downward stroke L1, at this moment centrepin 1 correcting piston pin make it coaxial with centrepin 1;
Step 4: lower push rod 7 under the effect of lower push rod control cylinder 11 with the strength that is greater than centrepin 1 downforce upwards jack-up piston pin make it enter the straight port part of tapered sleeve 5;
Step 5: compensating squeeze head 2 starts descending under the driving of compensating squeeze head control cylinder 9, and it is descending in tapered sleeve 5 to promote jump ring, because tapered sleeve 5 endoporus are taper, jump ring is tightened up in this process;
Step 6: compensating squeeze head 2 and the jump ring being tightened up are descending embrace wire circlip 4 with piston pin under the driving of compensating squeeze head control cylinder 9 together with;
Step 7: when wire circlip 4 arrives the jump-ring slot of piston hole, compensating squeeze head 2 is no longer descending, lower push rod 7 stroke inductive switches 12 send signal, lower push rod control cylinder 11 is died, lower push rod 7 is descending, the wire circlip 4 of being held tightly is just opened automatically, enters into jump-ring slot, completes the assembling of piston wire circlip.
Device provided by the invention has overcome the deficiencies in the prior art, utilize compensating squeeze head to hold jump ring tightly together with piston pin descending, overcome the restriction of workpiece size, greatly improved and press-fited quality, be substantially applicable to the assembling of all wire circlip base parts, cost is low, practical, and compensating squeeze head is independent parts, tight a bolt and miscellaneous part assembling by compensating squeeze head, after wearing and tearing, be easy to change.
Claims (10)
1. one kind is assembled the device of piston wire circlip, it is characterized in that, comprise tapered sleeve (5) and wire circlip (4) can be delivered to the feed mechanism (3) in tapered sleeve (5), tapered sleeve (5) top is provided with centrepin (1) and compensating squeeze head (2), centrepin (1) can move up and down relatively with compensating squeeze head (2), the below of tapered sleeve (5) is provided with the holder (6) for laying piston support piston connecting rod, in described holder (6), be provided with the lower push rod (7) that can move up and down and can hold tightly wire circlip together with piston pin.
2. the device of assembling piston wire circlip as claimed in claim 1, is characterized in that, in the time that piston is placed on holder (6), piston is by lower push rod (7) location.
3. the device of assembling piston wire circlip as claimed in claim 1, it is characterized in that, between described tapered sleeve (5) and compensating squeeze head (2), leave gap, guarantee feed mechanism (3) can be sent the wire circlip of reset condition (4) into tapered sleeve (5).
4. the device of assembling piston wire circlip as claimed in claim 1, it is characterized in that, described centrepin (1) is connected with centrepin control cylinder (8), drives centrepin (1) to move up and down by centrepin control cylinder (8).
5. the device of assembling piston wire circlip as claimed in claim 1, it is characterized in that, described compensating squeeze head (2) is connected with compensating squeeze head control cylinder (9), drives compensating squeeze head (2) to move up and down by compensating squeeze head control cylinder (9).
6. the device of assembling piston wire circlip as claimed in claim 5, is characterized in that, described compensating squeeze head (2) and compensating squeeze head control cylinder (9) by compensating squeeze head tight a bolt (10) be connected.
7. the device of assembling piston wire circlip as claimed in claim 1, is characterized in that, the lower end of described compensating squeeze head (2) is provided with the groove (13) corresponding with wire circlip (4) shape.
8. the device of assembling piston wire circlip as claimed in claim 1, it is characterized in that, described lower push rod (7) is connected with lower push rod control cylinder (11), controls lower push rod (7) move up and down by lower push rod control cylinder (11).
9. the device of assembling piston wire circlip as claimed in claim 8, it is characterized in that, the device of described assembling piston wire circlip also comprises lower push rod travel control switch (12), in the time that wire circlip 4 arrives the jump-ring slot of piston hole, lower push rod travel control switch (12) sends signal, and lower push rod control cylinder (11) drives lower push rod (7) descending.
10. a method of assembling piston wire circlip, is characterized in that, adopts the device of above-mentioned assembling piston wire circlip, and concrete steps comprise:
Step 1: first piston is put into holder (6) upper, need to press-fits facing up of wire circlip (4);
Step 2: the feed mechanism (3) of wire circlip is sent to the wire circlip of reset condition (4) in tapered sleeve (5), and wire circlip (4) is located at the opening part of tapered sleeve (5);
Step 3: centrepin (1) moves downward stroke (L1), at this moment centrepin (1) correcting piston pin make it coaxial with centrepin (1);
Step 4: lower push rod (7) with the strength that is greater than centrepin (1) downforce upwards jack-up piston pin make it enter the straight port part of tapered sleeve (5);
Step 5: compensating squeeze head (2) starts descending, and it is descending in tapered sleeve (5) to promote wire circlip (4), because tapered sleeve (5) endoporus is taper, wire circlip (4) is tightened up in this process;
Step 6: compensating squeeze head (2) is descending together with embracing wire circlip (4) with piston pin;
Step 7: when wire circlip (4) arrives the jump-ring slot of piston hole, compensating squeeze head (2) is no longer descending, and lower push rod (7) is descending, and the wire circlip (4) of being held tightly is just opened automatically, enter into 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 true CN104175103A (en) | 2014-12-03 |
| CN104175103B CN104175103B (en) | 2017-11-14 |
Family
ID=51956603
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104175103B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067860A (en) * | 2017-12-14 | 2018-05-25 | 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 |
| CN108340146A (en) * | 2018-02-06 | 2018-07-31 | 姜棋 | A kind of piston circlip fitting machine and operating method |
Citations (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 |
| CN101386166A (en) * | 2008-06-10 | 2009-03-18 | 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 |
| CN103639686A (en) * | 2013-11-20 | 2014-03-19 | 杭州沃镭科技有限公司 | Feeding and press-assembling device and method for snap springs of brake main valves |
| 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 |
-
2014
- 2014-07-31 CN CN201410374392.8A patent/CN104175103B/en active Active
Patent Citations (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 |
| CN101386166A (en) * | 2008-06-10 | 2009-03-18 | 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 |
| CN103639686A (en) * | 2013-11-20 | 2014-03-19 | 杭州沃镭科技有限公司 | Feeding and press-assembling device and method for snap springs of brake main valves |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067860A (en) * | 2017-12-14 | 2018-05-25 | 博众精工科技股份有限公司 | Turnover type wire circlip transfer device |
| 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 |
| CN108340146A (en) * | 2018-02-06 | 2018-07-31 | 姜棋 | A kind of piston circlip fitting machine and operating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104175103B (en) | 2017-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204748076U (en) | Bell housing positioning and clamping device | |
| CN203712018U (en) | Clamping device for large agricultural machinery gears | |
| CN104175103A (en) | Device and method for assembling steelwire snap ring in piston | |
| CN108044346B (en) | Fixed clamp assembly quality | |
| CN204295254U (en) | The device of assembling piston wire circlip | |
| CN202336849U (en) | Valve locking clamper assembly tool of engine | |
| CN205684994U (en) | A kind of overspeed shaft press-fitting tool | |
| CN204603726U (en) | A kind of hub bearing press-loading apparatus | |
| CN205629891U (en) | Double acting spindle nose pressure equipment device | |
| CN206200512U (en) | A kind of speed changer bonnet oil sealing assembly tooling | |
| CN203791455U (en) | Butt-punching tube piercing die | |
| CN203018997U (en) | Cylinder cover conduit and valve seat balancing press-fitting mechanism | |
| CN103084823A (en) | Cylinder cover conduit and valve seat balance press fitting mechanism | |
| CN202894606U (en) | Pressing mechanism for laser welding of automobile top cap | |
| CN203509614U (en) | Accessory head tension device | |
| CN203003818U (en) | Universal nail puller | |
| CN203926451U (en) | A kind of equipment that automatically installs additional of bearing O type circle | |
| CN203843409U (en) | Centering mechanism for welding pipe fittings and end covers of silencing barrels of automobiles | |
| CN204470474U (en) | Cold headers clamp structure | |
| CN203653645U (en) | Spray nozzle for surface quenching of hanging type rotary workpiece | |
| CN103009117A (en) | Internal clamping fixture | |
| CN205096495U (en) | Get psammitolite anchor clamps | |
| CN204449837U (en) | Bearing assembles gripping mechanism automatically | |
| CN204900466U (en) | Push rod pin axle spring locking device | |
| CN204700467U (en) | Shaped steel automatic soldering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |