CN112338610A - Pin hole positioning mechanism used after finish machining of piston pin hole - Google Patents
Pin hole positioning mechanism used after finish machining of piston pin hole Download PDFInfo
- Publication number
- CN112338610A CN112338610A CN202011228680.4A CN202011228680A CN112338610A CN 112338610 A CN112338610 A CN 112338610A CN 202011228680 A CN202011228680 A CN 202011228680A CN 112338610 A CN112338610 A CN 112338610A
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- CN
- China
- Prior art keywords
- connecting piece
- pin hole
- cylinder
- pin
- piston
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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.)
- Pending
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Classifications
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- 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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Abstract
The invention relates to a pin hole positioning mechanism used after finish machining of a piston pin hole, which comprises a fixed sliding table, wherein a base plate is connected to the fixed sliding table in a sliding mode, a guide rod air cylinder is fixed on the base plate and connected with a first connecting piece, the first connecting piece is connected with a clamping air cylinder, the clamping air cylinder is connected with a second connecting piece, and the second connecting piece is connected with a positioning pin. The pin hole positioning mechanism after the piston pin hole is finely processed is simple in structure, can accurately position the engine piston, changes the original diamond pin perforation positioning mode, and effectively overcomes the problems of pin hole scratch and pin cushion.
Description
Technical Field
The invention relates to the technical field of machining of mechanical equipment, in particular to a pin hole positioning mechanism used after piston pin hole finish machining.
Background
The piston is one of the core parts of the engine, and the machining precision requirement is high. Before the engine piston is in the standard VI of China, the finished product is already obtained after the pin hole is finished, but after the standard VI of China is popularized, the requirement cannot be met by common pin hole finish machining, and the submicron machining (mostly ultrasonic machining) can be added after the pin hole is finished, so that the positioning problem after the pin hole is finished is gradually highlighted.
The traditional positioning mode is diamond pin perforation positioning, and the problem that the pin holes are easily scratched and the pins are easily padded exists. Traditional diamond pin perforation location is used for the finish machining after the pinhole rough machining mostly, and the finish machining allowance is big enough to overcome fish tail pinhole and fill up the round pin problem, and the submicron processing (ultrasonic machining) machining allowance after the finish machining is few, and the problem is obvious.
Disclosure of Invention
The invention discloses a pin hole positioning mechanism for a piston pin hole after finish machining, and solves the problem that the pin hole and a cushion pin are scratched in the traditional pin penetrating positioning.
The invention is realized by the following technical scheme:
the pin hole positioning mechanism comprises a fixed sliding table, a base plate is connected to the fixed sliding table in a sliding mode, a guide rod air cylinder is fixed to the base plate, a first connecting piece is connected to the guide rod air cylinder, the first connecting piece is connected with a clamping air cylinder, the clamping air cylinder is connected with a second connecting piece, and the second connecting piece is connected with a positioning pin.
Furthermore, the locating pin is a combined and symmetrical semi-cylindrical structure, the locating pin of each semi-cylinder is respectively connected with the clamping jaw of the clamping cylinder, and the outer wall of the arc of the locating pin is attached to the inner wall of the piston pin hole.
Further, the backing plate is provided with a groove, a slide rail is arranged in the groove, a slide block is arranged on the slide rail, the slide block moves on the slide rail, the slide block is connected with a third connecting piece, and the third connecting piece is connected with the first connecting piece.
Furthermore, the positioning pins are of combined and symmetrical semi-cylindrical structures, and the positioning pin of each semi-cylinder is connected with the clamping jaw of the clamping cylinder respectively.
Further, the backing plate passes through the bolt and installs on fixed slip table.
The invention has the beneficial effects that:
the pin hole positioning mechanism after the piston pin hole is finely processed is simple in structure, can accurately position the engine piston, changes the original diamond pin perforation positioning mode, and effectively overcomes the problems of pin hole scratch and pin cushion.
Drawings
FIG. 1 is a perspective view of example 1 of the present invention;
FIG. 2 is a perspective view of embodiment 2 of the present invention;
FIG. 3 is a side view of embodiment 2 of the present invention;
FIG. 4 is a top view of example 2 of the present invention;
FIG. 5 is a schematic view of the open position of the locating pin of the present invention when it is positioned on the piston to be machined;
FIG. 6 is a schematic view of the construction of the invention with the locating pin closed when it is positioned on the piston to be machined;
shown in the figure:
1. guide arm cylinder, 2, first connecting piece, 3, centre gripping cylinder, 4, second connecting piece, 5, locating pin, 6, fixed slip table, 7, backing plate, 8, slide rail, 9, third connecting piece, 10, slider.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Example 1
Referring to fig. 1, 5, 6, a pinhole positioning mechanism for after piston pin hole finish machining is provided, including fixed slip table 6, sliding connection has backing plate 7 on the fixed slip table 6, be fixed with guide arm cylinder 1 on the backing plate 7, guide arm cylinder 1 is connected with first connecting piece 2, first connecting piece 2 links to each other with centre gripping cylinder 3, centre gripping cylinder 3 is connected with second connecting piece 4, second connecting piece 4 links to each other 5 with the locating pin, locating pin 5 is the half-cylinder structure of combination symmetry, and the locating pin 5 of each half-cylinder links to each other with centre gripping cylinder 3's clamping jaw respectively, the outer wall of locating pin arcuation and the inner wall laminating of piston pin hole. The backing plate 7 is of a flat structure, and the backing plate 7 is installed on the fixed sliding table 6 through bolts.
The working principle of embodiment 1 of the invention is as follows:
after the positioning mechanism receives the instruction, the guide rod cylinder 1 extends forwards to drive the first connecting piece 2, the clamping cylinder 2, the second connecting piece 4 and the positioning pin 5 to simultaneously extend forwards to reach the designated position, the clamping cylinder 2 starts clamping action to drive the positioning pin 5 to open, and the positioning function is realized.
Example 2
Referring to fig. 2-6, a pinhole positioning mechanism for after piston pin hole finish machining is provided, including fixed slip table 6, sliding connection has backing plate 7 on the fixed slip table 6, be fixed with guide arm cylinder 1 on the backing plate 7, guide arm cylinder 1 is connected with first connecting piece 2, first connecting piece 2 links to each other with centre gripping cylinder 3, centre gripping cylinder 3 is connected with second connecting piece 4, second connecting piece 4 links to each other with locating pin 5, locating pin 5 is the half-cylinder structure of combination symmetry, and the locating pin 5 of each half-cylinder links to each other in the clamping jaw of centre gripping cylinder 3 respectively, the outer wall of 5 arcuations of locating pin is laminated with the inner wall of piston pin hole. The backing plate 7 is installed on the fixed sliding table 6 through bolts. The backing plate 7 is provided with a groove, a slide rail 8 is arranged in the groove, a slide block 10 is arranged on the slide rail, the slide block 10 moves on the slide rail 8, the slide block 10 is connected with a third connecting piece 9, the third connecting piece 9 is connected with the first connecting piece 2, and the design can realize accurate guiding and positioning.
The working principle of embodiment 2 of the invention is as follows:
after receiving the instruction, the positioning mechanism extends the rear guide rod cylinder 1 forwards to drive the first connecting piece 2, the clamping cylinder 2, the second connecting piece 4 and the positioning pin 5 to extend forwards simultaneously, and at the moment, the first connecting piece 2 is connected with the third connecting piece 9 to further drive the sliding block 10 to move on the sliding rail 8. After the positioning device reaches the designated position, the clamping cylinder 3 starts clamping action to drive the positioning pin 5 to open, so that the positioning function is realized.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a pinhole positioning mechanism for after piston pin hole finish machining which characterized in that: including fixed slip table (6), sliding connection has backing plate (7) on fixed slip table (6), be fixed with guide arm cylinder (1) on backing plate (7), guide arm cylinder (1) is connected with first connecting piece (2), first connecting piece (2) link to each other with centre gripping cylinder (3), centre gripping cylinder (3) are connected with second connecting piece (4), second connecting piece (4) link to each other with locating pin (5).
2. The pin bore locating mechanism for use after piston pin bore finishing of claim 1, further comprising: the positioning pins (5) are of symmetrical semi-cylindrical structures, the positioning pins of each semi-cylinder are respectively connected with the clamping jaws of the clamping cylinder (3), and the outer walls of the arc-shaped positioning pins (3) are attached to the inner walls of the piston pin holes.
3. The pin bore locating mechanism for use after piston pin bore finishing of claim 1, further comprising: backing plate (7) are equipped with the fluting, be equipped with slide rail (8) in the fluting, be equipped with slider (10) on slide rail (8), the slider removes on slide rail (8), slider (10) link to each other (9) with the third connecting piece, third connecting piece (9) link to each other with first connecting piece (2).
4. The pin bore locating mechanism for use after piston pin bore finishing of claim 1, further comprising: the backing plate (7) is installed on the fixed sliding table (6) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228680.4A CN112338610A (en) | 2020-11-06 | 2020-11-06 | Pin hole positioning mechanism used after finish machining of piston pin hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228680.4A CN112338610A (en) | 2020-11-06 | 2020-11-06 | Pin hole positioning mechanism used after finish machining of piston pin hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112338610A true CN112338610A (en) | 2021-02-09 |
Family
ID=74430161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011228680.4A Pending CN112338610A (en) | 2020-11-06 | 2020-11-06 | Pin hole positioning mechanism used after finish machining of piston pin hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112338610A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB688518A (en) * | 1950-05-19 | 1953-03-11 | United Carr Fastener Corp | Improvements in and relating to fastener devices |
| CN102121496A (en) * | 2011-02-23 | 2011-07-13 | 广汽本田汽车有限公司 | Round pin-inserted positioning device and tensioning and positioning round pin thereof |
| CN202493540U (en) * | 2012-01-04 | 2012-10-17 | 杭州匡盛机械有限公司 | End mold positioning pin used for subway steel die |
| CN105773248A (en) * | 2016-03-28 | 2016-07-20 | 安徽华菱汽车有限公司 | Automatic centering hydraulic fixture |
| CN205950206U (en) * | 2016-08-24 | 2017-02-15 | 昆山标新自动化科技有限公司 | Cell -phone part elastic sheet clamp holds positioning mechanism |
| CN108555696A (en) * | 2018-06-12 | 2018-09-21 | 滨州渤海活塞有限公司 | Piston pin hole Ultra-precision Turning special equipment and its processing technology |
-
2020
- 2020-11-06 CN CN202011228680.4A patent/CN112338610A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB688518A (en) * | 1950-05-19 | 1953-03-11 | United Carr Fastener Corp | Improvements in and relating to fastener devices |
| CN102121496A (en) * | 2011-02-23 | 2011-07-13 | 广汽本田汽车有限公司 | Round pin-inserted positioning device and tensioning and positioning round pin thereof |
| CN202493540U (en) * | 2012-01-04 | 2012-10-17 | 杭州匡盛机械有限公司 | End mold positioning pin used for subway steel die |
| CN105773248A (en) * | 2016-03-28 | 2016-07-20 | 安徽华菱汽车有限公司 | Automatic centering hydraulic fixture |
| CN205950206U (en) * | 2016-08-24 | 2017-02-15 | 昆山标新自动化科技有限公司 | Cell -phone part elastic sheet clamp holds positioning mechanism |
| CN108555696A (en) * | 2018-06-12 | 2018-09-21 | 滨州渤海活塞有限公司 | Piston pin hole Ultra-precision Turning special equipment and its processing technology |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |
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| RJ01 | Rejection of invention patent application after publication |