CN107962413A - A kind of clamping device and its clamping technique of the processing of auxiliary piston top surface - Google Patents
A kind of clamping device and its clamping technique of the processing of auxiliary piston top surface Download PDFInfo
- Publication number
- CN107962413A CN107962413A CN201810035451.7A CN201810035451A CN107962413A CN 107962413 A CN107962413 A CN 107962413A CN 201810035451 A CN201810035451 A CN 201810035451A CN 107962413 A CN107962413 A CN 107962413A
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- CN
- China
- Prior art keywords
- piston
- face
- lathe
- clamping
- split type
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention provides a kind of clamping device and its clamping technique of the processing of auxiliary piston top surface, including the clamping cylinder being connected with lathe clamping device, in clamping barrel front end connection piston sleeve, a pair of through hole concentric with piston pin axis hole is opened up on piston sleeve, insertion one runs through the pin rod in gudgeon pin shaft hole between through hole, one tensioning mechanism of connection in the middle part of pin rod, one split type benchmark snap ring is set in a piston card slot, under tensioning mechanism effect, the rear end face of split type benchmark snap ring is attached to piston sleeve outer end face and its front end face is attached on the side wall of respective pistons card slot.Piston is fixedly connected on lathe clamping device by the device, can precisely realize that the processing of top land is processed in face on the basis of annular groove, ensure that the parallelism precision between top and annular groove, and the apparatus structure is simple and easy to operate.
Description
Technical field
The present invention relates to Piston Machining equipment field of auxiliary, be specially a kind of auxiliary piston top surface processing clamping device and
Its clamping technique.
Background technology
Piston of automobile is made of top, head and skirt section three parts, its basic shape be one from top to bottom, diameter it is gradual
The cylindrical tube to become larger, piston crown is part more than piston ring groove, to ring installation；Piston skirt refers to from oil
Rise to the part of piston bottom surface annular groove lower face；Two pin shaft holes are set between skirt upper portion and oil ring groove, and gudgeon pin shaft is just
In axis pin bore between two pin shaft holes.
Higher and higher to piston machining accuracy with the high speed development of Modern Engine, the processing of top land top surface is most heavy
The parameter wanted is the depth of parallelism between piston-top surface and piston ring groove, due to the processing of top land top surface and adding for piston ring groove
Work is all processed respectively, both processes are separate, and resetting causes machining benchmark between the two inconsistent, because
This is it is difficult to ensure that the depth of parallelism between the two.
Chinese Patent Application No. 2013203553159, discloses entitled：A kind of dress at the top of piston fine cut groove, smart car
Put, processing two processes of annular groove and roof can all be carried out on the apparatus using the patent, piston only needs one-time positioning i.e.
Can, two manufacturing procedure benchmark are identical, therefore ensure that the depth of parallelism between the two, and machining accuracy is further improved.
The content of the invention
The present invention is directed to above shortcoming, there is provided the clamping device and its clamping technique of auxiliary piston top surface processing, it is living
Plug is fixedly connected on lathe clamping device by the device, can precisely realize the processing of top land on the basis of annular groove face into
Row processing, while also solve top processing of the piston without the special piston of seam allowance positioning and piston lower surface shape, it ensure that
Parallelism precision between top and annular groove, the apparatus structure are simple and easy to operate.
The technical solution adopted by the present invention to solve the technical problems is：Including the clamping cylinder being connected with lathe clamping device
Body, in clamping barrel front end connection piston sleeve, opens up a pair of through hole concentric with piston pin axis hole, logical on piston sleeve
Insertion one runs through the pin rod in gudgeon pin shaft hole between hole, connects a tensioning mechanism in the middle part of pin rod, one is set in a piston card slot
Split type benchmark snap ring, under tensioning mechanism effect, the rear end face of split type benchmark snap ring is attached to piston sleeve outer end face and its
Front end face is attached on the side wall of respective pistons card slot.
The present invention devises, and the tensioning mechanism includes a tie rod, and tie rod is arranged on clamping cylinder and piston sleeve
Between, its front end connects a tensioning ring and lathe tension system is connected with its rear end, and the tensioning ring is sleeved in the middle part of pin rod.
The present invention devises, and the split type benchmark snap ring includes the semi-circular ring that two halves are fastened on one piece.
A kind of clamping technique of the clamping device of auxiliary piston top surface processing, its step are as described below：
Step 1：Clamping cylinder is clamped using the clamping disk of lathe, lathe and whole device are realized by clamping plus clamping cylinder
Between connection fix, correction piston sleeve is cylindrical, and carries out datum level processing to piston sleeve outer end face with lathe cutter head；
Step 2：Two semi-circular rings are stuck in a piston ring groove and can mutually be fastened on one piece, split type reference card
Belong to clearance fit between the inner circle inner wall of ring and piston ring groove bottom, split type reference card ring thickness is equal to the width of piston ring groove
Degree is somewhat a little bit smaller, and then the piston skirt with split type benchmark snap ring is put into piston sleeve, allows top land court
To lathe cutter head machine direction, then by pin rod, through hole is inserted into toward through hole direction below above piston sleeve, while allows pin
Bar penetrates two piston pin axis holes and its middle part is sleeved on tensioning ring；
Step 3：Start lathe tension system switch, lathe tension system pulls tie rod backward, and tie rod is drawn by tensioning ring
Dynamic pin rod, pin rod pulls whole piston backward by piston pin axis hole, due to piston barrel outer end face and split type benchmark snap ring
Between mutual stop, end face and the piston barrel outer end face of split type benchmark snap ring are bonded to each other in one piece and its other end
Face is bonded to each other with respective pistons card slot side, and piston, which is tightened up, to be fixed between piston sleeve and split type benchmark snap ring, together
When piston tip facing to lathe cutter head direction；
Step 4：Start lathe, its cutter head carries out turnery processing to piston top end face；
Step 5：Lathe tension system is released, the piston processed is lifted down, by another piston repeat step one to step 4
Carry out the processing of piston top end face.
Brief description of the drawings
Fig. 1 show the schematic diagram one of the present invention；
Fig. 2 show the schematic diagram two of the present invention.
Embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings：
It is as shown in Figs. 1-2 the specific embodiment of the present invention, which includes the clamping cylinder being connected with lathe clamping device
Body 1, in 1 front end of clamping cylinder connection piston sleeve 2, opens up a pair of through hole concentric with piston pin axis hole 4 on piston sleeve 2
3, a pin rod 5 for running through gudgeon pin shaft hole 4, one tensioning mechanism of the middle part of pin rod 5 connection, in a piston card are inserted between through hole 3
One split type benchmark snap ring 7 is set in groove 6, and under tensioning mechanism effect, the rear end face of split type benchmark snap ring 7 is attached to piston bush
2 outer end faces of cylinder and its front end face are attached on the side wall of respective pistons card slot.
In this example, the tensioning mechanism includes a tie rod 8, and tie rod 8 is arranged on clamping cylinder 1 and piston sleeve
Between 2, its front end connects a tensioning ring 9 and lathe tension system is connected with its rear end, and the tensioning ring 9 is sleeved on the middle part of pin rod 5.
In this example, the split type benchmark snap ring 7 includes the semi-circular ring 10 that two halves are fastened on one piece.
The clamping technique of the device is described in detail below, its step is as described below：
Step 1：Clamping cylinder 1 is clamped using the clamping disk of lathe, lathe and whole dress are realized by clamping plus clamping cylinder 1
Connection between putting is fixed, and correction piston sleeve 2 is cylindrical, and carries out datum level to 2 outer end face of piston sleeve with lathe cutter head and add
Work；
Step 2：Two semi-circular rings 10 are stuck in a piston ring groove 6 and can mutually be fastened on one piece, split type benchmark
Belong to clearance fit between 6 bottom of inner circle inner wall and piston ring groove of snap ring 7, split type 7 thickness of benchmark snap ring is equal to piston ring
The width of groove 6 is somewhat a little bit smaller, and then the piston skirt with split type benchmark snap ring 7 is put into piston sleeve 2, allows work
Then pin rod 5 is inserted from through hole 3 above piston sleeve 2 toward through hole direction below towards lathe cutter head machine direction at plug top
Enter, while allow pin rod 5 to penetrate two piston pin axis holes 4 and its middle part and be sleeved on tensioning ring 9；
Step 3：Start lathe tension system switch, lathe tension system pulls tie rod 8 backward, and tie rod 8 passes through tensioning ring
9 pull pin rod 5, and pin rod 5 pulls whole piston backward by piston pin axis hole 4, due to 2 outer end face of piston barrel and split type base
Mutual stop between quasi- snap ring 7, end face and 2 outer end face of piston barrel of split type benchmark snap ring 7 are bonded to each other at one piece
It is bonded to each other with its other end and 6 side of respective pistons card slot, piston, which is tightened up, is fixed on piston sleeve 2 and split type benchmark
Between snap ring 7, while piston tip is facing to lathe cutter head direction；
Step 4：Start lathe, its cutter head carries out turnery processing to piston top end face；
Step 5：Lathe tension system is released, the piston processed is lifted down, by another piston repeat step one to step 4
Carry out the processing of piston top end face.
Emphasize again a bit：At present, piston of automobile processing develops towards high-precision machine direction, integrally adds to provide piston
Working medium amount and machining accuracy, most of piston all eliminates processing seam allowance at present for we, so if using current roof again
Clamp for machining, it is difficult to which the piston without processing seam allowance is calibrated and positioned, from the above mentioned, present patent application is equally applicable
Piston in processing without processing seam allowance, its machining accuracy higher and more convenient to use；
It can be seen that in step 3：The end face of split type benchmark snap ring 7 is bonded to each other with 2 outer end face of piston barrel, at the same time
The calibration positioning of datum level is carried out to 2 outer end face of piston barrel in step 1, while split type benchmark snap ring 7 is another
End face is bonded to each other with 6 side of respective pistons card slot, then 7 two 2 outer end face of piston barrel, split type benchmark snap ring ends
It is parallel to each other between face, piston card slot side and parallel accuracy is very high, while can guarantee that in process and live using the device
Plug not loosen easily, therefore ensure that processing processing datum is not easy not change.
Claims (4)
- A kind of 1. clamping device of auxiliary piston top surface processing, it is characterised in that：Including the clamping being connected with lathe clamping device Cylinder (1), in clamping cylinder (1) front end connection piston sleeve (2), opens up a pair of and piston pin axis hole on piston sleeve (2) (4) concentric through hole (3), a pin rod (5) for running through gudgeon pin shaft hole (4) is inserted between through hole (3), is connected in the middle part of pin rod (5) A tensioning mechanism is connect, a split type benchmark snap ring (7) is set in a piston card slot (6), it is split type under tensioning mechanism effect The rear end face of benchmark snap ring (7) is attached to piston sleeve (2) outer end face and its front end face is attached on the side wall of respective pistons card slot.
- A kind of 2. clamping device of auxiliary piston top surface processing according to claim 1, it is characterised in that：The fastener Structure includes a tie rod (8), and tie rod (8) is arranged between clamping cylinder (1) and piston sleeve (2), its front end connection one is drawn Tight ring (9) connects lathe tension system with its rear end, and the tensioning ring (9) is sleeved in the middle part of pin rod (5).
- A kind of 3. clamping device of auxiliary piston top surface processing according to claim 2, it is characterised in that：It is described split type Benchmark snap ring (7) includes the semi-circular ring (10) that two halves are fastened on one piece.
- 4. a kind of clamping technique of the clamping device of auxiliary piston top surface processing as claimed in claim 3, the following institute of its step State：Step 1：Using the clamping disk of lathe clamp clamping cylinder (1), by clamping plus clamping cylinder (1) realize lathe with it is whole Connection between a device is fixed, and correction piston sleeve (2) is cylindrical, and piston sleeve (2) outer end face is carried out with lathe cutter head Datum level is processed；Step 2：Two semi-circular rings (10) are stuck in a piston ring groove (6) and can mutually be fastened on one piece, it is split type Belong to clearance fit, split type benchmark snap ring (7) thickness between the inner circle inner wall of benchmark snap ring (7) and piston ring groove (6) bottom Equal to the width or somewhat a little bit smaller of piston ring groove (6), the piston skirt with split type benchmark snap ring (7) is then put into work In plug sleeve (2), top land is allowed towards lathe cutter head machine direction, then by pin rod (5) from through hole above piston sleeve (2) (3) be inserted into toward through hole direction below, at the same allow pin rod (5) penetrate two piston pin axis holes (4) and its in the middle part of be sleeved on tensioning ring (9) on；Step 3：Start lathe tension system switch, lathe tension system pulls tie rod (8) backward, and tie rod (8) passes through drawing Tight ring (9) pulls pin rod (5), and pin rod (5) pulls whole piston backward by piston pin axis hole (4), due to piston barrel (2) outside Mutual stop between end face and split type benchmark snap ring (7), end face and the piston barrel (2) of split type benchmark snap ring (7) Outer end face is bonded to each other to be bonded to each other in one piece and its other end with respective pistons card slot (6) side, and piston is tightened up fixation Between piston sleeve (2) and split type benchmark snap ring (7), while piston tip is facing to lathe cutter head direction；Step 4：Start lathe, its cutter head carries out turnery processing to piston top end face；Step 5：Lathe tension system is released, the piston processed is lifted down, by another piston repeat step one to step 4 Carry out the processing of piston top end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035451.7A CN107962413A (en) | 2018-01-15 | 2018-01-15 | A kind of clamping device and its clamping technique of the processing of auxiliary piston top surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035451.7A CN107962413A (en) | 2018-01-15 | 2018-01-15 | A kind of clamping device and its clamping technique of the processing of auxiliary piston top surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107962413A true CN107962413A (en) | 2018-04-27 |
Family
ID=61994139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035451.7A Withdrawn CN107962413A (en) | 2018-01-15 | 2018-01-15 | A kind of clamping device and its clamping technique of the processing of auxiliary piston top surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107962413A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848740A (en) * | 2019-03-12 | 2019-06-07 | 陕西柴油机重工有限公司 | A kind of folder outer circle molded line high-precision clamp for machining |
| CN112658596A (en) * | 2020-11-16 | 2021-04-16 | 山东振挺精工活塞有限公司 | Process for solving problem of unqualified parallelism of die-casting piston pin hole |
| CN114012471A (en) * | 2021-11-12 | 2022-02-08 | 安徽省恒泰动力科技有限公司 | Anti-pulling-crack clamping mechanism for processing piston combustion chamber and using method |
-
2018
- 2018-01-15 CN CN201810035451.7A patent/CN107962413A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848740A (en) * | 2019-03-12 | 2019-06-07 | 陕西柴油机重工有限公司 | A kind of folder outer circle molded line high-precision clamp for machining |
| CN109848740B (en) * | 2019-03-12 | 2021-08-13 | 陕西柴油机重工有限公司 | Clamp for high-precision machining of outer circle molded line of clamp |
| CN112658596A (en) * | 2020-11-16 | 2021-04-16 | 山东振挺精工活塞有限公司 | Process for solving problem of unqualified parallelism of die-casting piston pin hole |
| CN114012471A (en) * | 2021-11-12 | 2022-02-08 | 安徽省恒泰动力科技有限公司 | Anti-pulling-crack clamping mechanism for processing piston combustion chamber and using method |
| CN114012471B (en) * | 2021-11-12 | 2022-10-28 | 安徽省恒泰动力科技有限公司 | Anti-pulling-crack clamping mechanism for processing piston combustion chamber and using method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180427 |
|
| WW01 | Invention patent application withdrawn after publication |