CN201632853U - Cylinder head guide pipe and valve seat hole machining and positioning device - Google Patents
Cylinder head guide pipe and valve seat hole machining and positioning device Download PDFInfo
- Publication number
- CN201632853U CN201632853U CN2009202892794U CN200920289279U CN201632853U CN 201632853 U CN201632853 U CN 201632853U CN 2009202892794 U CN2009202892794 U CN 2009202892794U CN 200920289279 U CN200920289279 U CN 200920289279U CN 201632853 U CN201632853 U CN 201632853U
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- CN
- China
- Prior art keywords
- cylinder head
- valve seat
- conduit
- positioning device
- alignment pin
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a cylinder head pipe and disk seat spot facing work positioner has solved current positioner location accuracy relatively poor, influences the problem of machining precision. The technical scheme includes that the device comprises a body, wherein a positioning pin shaft penetrating through the body is arranged in the body, a guide pipe sleeve hole capable of being sleeved at the front end of a cylinder cover guide pipe is formed in the front end of the positioning pin shaft, and the rear end of the positioning pin shaft is connected with a power source through a transmission mechanism. The utility model discloses simple structure, easy and simple to handle, location are accurate, satisfy the size precision requirement after each item processing of cylinder head pipe and disk seat hole.
Description
Technical field
The utility model relates to a kind of automobile component processing unit (plant), a kind of specifically cylinder head conduit and valve seat orifice processing and positioning device.
Background technology
During automobile component was produced, cylinder head conduit and valve seat orifice requirement on machining accuracy were very high, for example the ZD30K of DongFeng Automobile Co., Ltd cylinder head conduit and the required precision of valve seat orifice finished size (is example with the air inlet side): 1.. the guide hole aperture
Through hole mm; 2.. the guide hole cylindrical is to the 0.15mm that beats of endoporus; 3.. the valve seat conical surface is to the 0.03mm that beats of guide hole; 4.. the valve seat conical surface compensation line diameter degree of depth 18.4 ± 0.05 (INT) mm; 5.. guide hole cylindricity 0.007mm; Especially 2. and jerk value 3. in the above-mentioned processing request,,, can bring the variety of issue that the later stage installs and uses, severe patient even influence the security of the lives and property if can not its machining accuracy of better controlled.
The reason most important that influences machining accuracy is the problem of the location of cylinder head during to cylinder head conduit and valve seat orifice fine finishining, the location of cylinder head is the bottom surface technology dowel hole tradition localization method that adopts plane and two pits in the accurately machined processing method of cylinder head conduit and valve seat orifice, being about to cylinder head is transported to after processing stations carries out coarse positioning by transmission line, utilize plane on the anchor clamps and two alignment pins to cooperate with baseplane and dowel hole on the cylinder cap, thereby carry out fine positioning, make clamp clamp the cylinder head end face then, after finishing location and clamping, restart lathe drive shaft drive corresponding cutters and process conduit and valve seat orifice to the top to direction by the cylinder head bottom surface.Because employing alignment pin fixed air cylinder cap in traditional fine positioning, accurate positioning is relatively poor, and then influences cylinder head conduit and the accurately machined precision of valve seat orifice, and the conduit inside and outside circle after the existence processing and the jerk value of the valve seat conical surface are difficult for the problem of assurance.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, and a kind of simple in structure, easy to operate, accurate positioning height is provided, can satisfies the cylinder head conduit and the valve seat orifice processing and positioning device of cylinder head conduit and the required precision of valve seat orifice finished size fully.
Technical scheme comprises body, is provided with the alignment pin of passing body in the described body, and described alignment pin front end has the conduit trepanning that can be sleeved on the cylinder head guide pipe front end, and the rear end is connected with power source by transmission mechanism.
Also be provided with the positioning supports piece between described alignment pin and the body.
Also be provided with in the described alignment pin and locate the liquid back pipe that trepanning is communicated with.
Described transmission mechanism is a crank mechanism.
Described transmission mechanism comprises that also an end and crank mechanism are hinged, the guide rod that the other end is connected with power source
Because air cylinder head structure, end of conduit is stretched out, and it highly is lower than the end face surface of cylinder head, therefore can consider by the mode of positioning catheter cylinder head to be positioned.During the location, alignment pin is stretched out, and the sheathed catheter borehole jack that makes its front end is on the end of conduit that is positioned at the cylinder head end face, and alignment pin and the coaxial setting of main shaft of controlling cutter work are carried out cylinder head conduit and valve seat orifice more at this moment, can effectively guarantee the precision of processing.Described alignment pin utilizes body as support, realizes the expanding-contracting action of alignment pin through transmission mechanism by power source.
Further, body supports alignment pin by the positioning supports piece and is its guiding, and in the alignment pin leading portion withdrawal positioning supports piece, the positioning supports piece also has protects the alignment pin front end to avoid the effect of colliding during retraction.
Also be provided with liquid back pipe in the described alignment pin, can make cutting more smooth and easy the cutting fluid pipeline discharge thus that is mixed with processing back aluminium bits behind the cutter inner cooling that comes by conduit.
The power that described transmission mechanism provides power source is converted into the flexible reciprocating motion of alignment pin, transmission mechanism can be selected existing various transmission device for use, for example drive link, crank mechanism or the like, the different dynamic direction appropriate design that those skilled in the art can provide according to power source, described power source is not particularly limited yet, as cylinder, hydraulic cylinder, motor or the like.
Beneficial effect:
1, the main shaft coaxial arrangement location of the alignment pin that the utility model is simple in structure, be enclosed within catheter proximal end and control cutter, thus can significantly improve machining accuracy, satisfy the dimension precision requirement after every processing of cylinder head conduit and valve seat orifice.
2, the cutting fluid that is mixed with aluminium bits after the processing is drawn by the liquid back pipe of alignment pin and is effluxed, and guarantees that working angles is smooth and easy.
3, cancel the locate mode of original plane and two pits, adopt the utility model directly to catheter positioning, easy and simple to handle,
Description of drawings
Fig. 1 is the utility model structural representation.
State diagram when Fig. 2 locatees for the utility model.
1-main shaft, 2-lathe tool, 3-valve seat, 4-rifle reamer, 5-conduit, 6-alignment pin, 6.1 conduit trepannings, 6.2-liquid back pipe, 7-cylinder head, 7.1-cylinder head end face, 8-positioning supports piece, 9-body, 10-crank mechanism, 11-guide rod, 12-piston rod.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained explanation:
With reference to Fig. 1, in body 9, be with positioning supports piece 8, be with alignment pin 6 in the positioning supports piece 8, described alignment pin 6 front ends are provided with the conduit trepanning 6.1 that cooperates suit with the conduit 5 of cylinder head 7, one end of rear end and crank mechanism 10 is hinged, one end of the other end of described crank mechanism 10 and guide rod 11 is hinged, and the other end of guide rod 11 is connected with the piston rod of hydraulic cylinder 12.Also be provided with liquid back pipe 6.2 in the described alignment pin 6, described liquid back pipe 6.2 can be considered the cutting fluid in cold in the cutter 4 and processing back aluminium to be worth doing thus pipeline and be drawn and efflux.
Operation principle:
Before cylinder head 7 was delivered to the appointment processing stations, the front end of alignment pin 6 was retracted in the positioning supports piece 6 substantially.After arriving processing stations, cylinder head 7 carries out coarse positioning earlier, primer fluid cylinder pressure then, make piston rod 12 drive crank mechanism 10 active force is reached alignment pin 6 through guide rod 11, level is stretched out forward, conduit trepanning 6.1 just in time is enclosed within on the conduit 5 front end cylindricals and locatees, clamp clamps cylinder head end face 7.1 then, after finishing location and clamping, start lathe, drive shaft 1, level forward to be contained in rifle reamer 4 on the same main shaft 1 and lathe tool 2 (totally 3), arrive and specify working position to begin processing (this moment, main shaft 1 kept coaxial state with alignment pin 6), main shaft forward, process to cylinder head end face 7.1 directions by the cylinder head bottom surface, rifle reamer 4 is the endoporus of processing conduit 5 earlier, main shaft 1 continues forward, lathe tool 2 processing valve seats 3 conical surfaces, after machining finishes, main shaft 1 withdraws from conduit 5, primer fluid cylinder pressure simultaneously, piston rod 12 drives crank mechanisms 10 through guide rod 11 once more active force is passed to alignment pin 6, makes that level is retracted to the home position backward in the positioning supports piece 8 of alignment pin 6 on body 9, its conduit trepanning 6.1 is by throwing off on the conduit 5 leading portion cylindricals, and cylinder head 7 is delivered to next processing stations.
Adopt the said method processing ZD30K of DongFeng Automobile Co., Ltd cylinder head conduit and valve seat orifice, processing back precision satisfies every dimension precision requirement fully after testing, and the guide hole cylindrical is to the 0.15mm that beats of endoporus; The valve seat conical surface is to the 0.03mm that beats of conduit endoporus.
Claims (6)
1. cylinder head conduit and valve seat orifice processing and positioning device, comprise body, it is characterized in that, be provided with the alignment pin of passing body in the described body, described alignment pin front end has the conduit trepanning that can be sleeved on the cylinder head guide pipe front end, and the rear end is connected with power source by transmission mechanism.
2. cylinder head conduit as claimed in claim 1 and valve seat orifice processing and positioning device is characterized in that, also are provided with the positioning supports piece between described alignment pin and the body.
3. cylinder head conduit as claimed in claim 1 or 2 and valve seat orifice processing and positioning device is characterized in that, also are provided with in the described alignment pin and locate the liquid back pipe that trepanning is communicated with.
4. cylinder head conduit as claimed in claim 1 and valve seat orifice processing and positioning device is characterized in that, described transmission mechanism is a crank mechanism.
5. cylinder head conduit as claimed in claim 4 and valve seat orifice processing and positioning device is characterized in that, described transmission mechanism comprises that also an end and crank mechanism are hinged, the guide rod that the other end is connected with power source.
6. cylinder head conduit as claimed in claim 4 and valve seat orifice processing and positioning device is characterized in that, described power source is hydraulic cylinder, pneumatic cylinder or motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202892794U CN201632853U (en) | 2009-12-15 | 2009-12-15 | Cylinder head guide pipe and valve seat hole machining and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202892794U CN201632853U (en) | 2009-12-15 | 2009-12-15 | Cylinder head guide pipe and valve seat hole machining and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201632853U true CN201632853U (en) | 2010-11-17 |
Family
ID=43077331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202892794U Expired - Lifetime CN201632853U (en) | 2009-12-15 | 2009-12-15 | Cylinder head guide pipe and valve seat hole machining and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201632853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430930A (en) * | 2011-10-09 | 2012-05-02 | *** | Device for automatically positioning and clamping eccentric wheel |
| CN102528479A (en) * | 2010-12-30 | 2012-07-04 | 广西玉柴机器股份有限公司 | Four-valve cylinder cover guide pipe inner hole location device of excircle location |
| CN102909525A (en) * | 2011-08-05 | 2013-02-06 | 广西玉柴机器股份有限公司 | Machining method for sealing tape of valve seat ring of cylinder cover |
-
2009
- 2009-12-15 CN CN2009202892794U patent/CN201632853U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528479A (en) * | 2010-12-30 | 2012-07-04 | 广西玉柴机器股份有限公司 | Four-valve cylinder cover guide pipe inner hole location device of excircle location |
| CN102528479B (en) * | 2010-12-30 | 2014-07-02 | 广西玉柴机器股份有限公司 | Four-valve cylinder cover guide pipe inner hole location device of excircle location |
| CN102909525A (en) * | 2011-08-05 | 2013-02-06 | 广西玉柴机器股份有限公司 | Machining method for sealing tape of valve seat ring of cylinder cover |
| CN102909525B (en) * | 2011-08-05 | 2014-10-15 | 广西玉柴机器股份有限公司 | Machining method for sealing tape of valve seat ring of cylinder cover |
| CN102430930A (en) * | 2011-10-09 | 2012-05-02 | *** | Device for automatically positioning and clamping eccentric wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |