CN202861826U - Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface - Google Patents
Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface Download PDFInfo
- Publication number
- CN202861826U CN202861826U CN 201220521464 CN201220521464U CN202861826U CN 202861826 U CN202861826 U CN 202861826U CN 201220521464 CN201220521464 CN 201220521464 CN 201220521464 U CN201220521464 U CN 201220521464U CN 202861826 U CN202861826 U CN 202861826U
- Authority
- CN
- China
- Prior art keywords
- bearing cap
- pressing plate
- milling
- anchor clamps
- engine camshaft
- 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 - Fee Related
Links
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a fixture used for rough milling and finish milling of an engine camshaft bearing cap undersurface. The fixture used for rough milling and finish milling of the engine camshaft bearing cap undersurface comprises a baseboard, a compressing mechanism which is arranged on the baseboard and is used for compressing a bearing cap, and a locating mechanism which is arranged on the baseboard and is used for locating the bearing cap. The locating mechanism comprises a locating piece and at least two locating pins, wherein a top surface of the locating piece is a flat surface, and heads of the locating pins are spherical surfaces. The side of the bearing cap is placed on a locating plane formed by the locating piece. The undersurface of the bearing cap is arranged on the outboard of the fixture. The heads of the locating pins support the end surface of the bearing cap. Compared with the prior art, the fixture uses the combination of the locating piece and the locating pins to take the place of a long strip board to locate, so a contact surface of the bearing cap in clamping is reduced largely, and accurate clamping of a cylinder cover is achieved. The fixture is simple in structure, convenient to operate, and high in processing efficiency of a bearing block of a camshaft. Workers can operate a machine without training.
Description
Technical field
The utility model relates to a kind of anchor clamps, and specifically, the utility model relates to the anchor clamps that the thick finish-milling processing in a kind of engine camshaft bearing cap bottom surface is used.
Background technology
In the prior art field, the main function of the camshaft-bearing cap of engine is to satisfy the location of inlet and outlet camshaft and fixing for the camshaft-bearing cap by engine, guarantee when camshaft rotates, cam is along with the motion of piston in time opening/closing inlet valve and exhaust valve.So the machining accuracy of the camshaft-bearing cap particularly processing precision direct influence of bearing cap bottom surface the working condition of piston opening/closing inlet valve and exhaust valve, but at present, often adopt built-up jig general on the lathe to realize that frock clamps in this process, in lathe, bearing cap to be placed on two strip plates during clamping, then with being with helical spring pressing plate to push down bearing cap, then start lathe and carry out the thick fine finishining in bearing cap bottom surface, this not only needs the operator that very masterful technique is arranged, and because the smaller clamping that is difficult for of camshaft-bearing cap structure, so that the operator is consuming time a lot of when selecting and general built-up jig is installed, this has caused again unnecessary impact to the bearing cap working (machining) efficiency, in addition again because the large datum level of strip plate has caused bearing cap locating surface flatness problems of too, to such an extent as to produce very large system deviation, the yield rate of the bearing cap bottom surface of processing this moment just descends to some extent.
So select a kind of clamping device of the thick finish-milling of a kind of engine cylinder cover camshaft-bearing cap bottom surface of accurately clamping of special use just to seem particularly urgent.
The utility model content
Technical problem to be solved in the utility model provides the anchor clamps that the thick finish-milling processing in a kind of engine camshaft bearing cap bottom surface is used, to realize the accurate clamping of camshaft-bearing cap.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: the anchor clamps that the thick finish-milling processing in a kind of engine camshaft bearing cap bottom surface is used, comprise base plate, be located at the hold-down mechanism that be used for to compress bearing cap on the base plate and be located at the detent mechanism that bearing cap is positioned on the base plate, this detent mechanism comprises that end face is keeper and at least two alignment pins that head is sphere on plane, bearing cap is placed on the plane of orientation of this keeper formation with its side, the bottom surface of bearing cap is positioned at the outside of anchor clamps, and the head of alignment pin is against on the end face of bearing cap.
Described keeper is arc.
Described alignment pin is provided with two, and line is arranged symmetrically with centered by the axis of two alignment pins and described bearing cap.
Described hold-down mechanism matches with described keeper and compresses described bearing cap, bearing cap is pressed on the plane of orientation of keeper formation, this hold-down mechanism comprises with described base plate to parallel pressing plate be connected to columniform pressure head on the pressing plate and that be positioned at keeper top, pressure head is pressed on the side of bearing cap, be provided with the support column that is used for supporting pressing plate that wore pressing plate at base plate, have perforating on the pressing plate, pressing plate is also locked by the locking nut on the support column.
Perforating on the described pressing plate is the strip hole that arranges along the pressing plate length direction.
Be provided with a vertical panel at described base plate, described alignment pin is installed on the side of vertical panel, and described support column vertically is installed on the vertical panel.
Be provided with the studdle that the height of described pressing plate is regulated at described base plate, an end of studdle is connected with base thread, and the other end is against on the pressing plate.
Also cover has spring on described support column, and an end of spring is against on the vertical panel, and the other end is against on the pressing plate.
The utility model adopts technique scheme, compared with prior art, these anchor clamps replace strip plate to position with keeper in conjunction with alignment pin, so that the contact surface of bearing cap in clamping reduces greatly, thereby greatly reduced face in traditional frock Position with One Plane and Two Holes owing to the excessive problem that produces excessive flatness, lay a solid foundation for reducing unnecessary systematic error in the operation of thick finish-milling camshaft-bearing cap bottom surface, realized the accurate clamping of cylinder cap, and this clamp structure is simple, easy to operate, the camshaft bearing bush seat working (machining) efficiency is high, and the employee who processes this product need not especially training and gets final product operation on duty.
Description of drawings
Fig. 1 is the structural representation of anchor clamps of the present utility model;
Fig. 2 is the top view of Fig. 1;
Mark among the above-mentioned figure is: 1, base plate; 2, alignment pin; 3, vertical panel; 4, keeper; 5, pressure head; 6, pressure head connector; 7, pressing plate; 8, support column; 9, spring; 10, studdle; 11, crossed countersunk head screw; 12, soket head cap screw; 13, bearing cap; 14, hex nut.
The specific embodiment
Be the anchor clamps that the thick finish-milling processing in a kind of engine camshaft bearing cap of the present utility model bottom surface is used as depicted in figs. 1 and 2, it comprises base plate 1, be located at the hold-down mechanism that be used for to compress bearing cap 13 on the base plate 1 and be located at the detent mechanism that bearing cap 13 is positioned on the base plate 1, this detent mechanism comprises that end face is keeper 4 and at least two alignment pins 2 that head is sphere on plane, bearing cap 13 is placed on the plane of orientation of these keeper 4 formation with its side, the bottom surface of bearing cap 13 is positioned at the outside of anchor clamps, and the head of alignment pin 2 is against on the end face of bearing cap 13.
As shown in Figure 2, keeper 4 is arc, and keeper 4 adapts with the side of bearing cap 13, and the lateral dimension of its size and bearing cap 13 is suitable.Keeper 4 is fixed on the base plate 1 by two crossed countersunk head screws 11, and its upper surface forms the lower locating surface in bearing cap 13 clamping process.Alignment pin 2 is provided with two in the present embodiment, and line is arranged symmetrically with centered by the axis of two alignment pins 2 and bearing cap 13.Reliable in order to guarantee that bearing cap 13 adds the man-hour position, a vertical panel 3 is installed in the middle of base plate 1, and is used for two alignment pins 2 of installation in the centre position in these vertical panel 3 left sides with keeper 4 correspondence positions.
The hold-down mechanism of these anchor clamps matches with keeper 4 and compresses bearing cap 13, bearing cap 13 is pressed on the plane of orientation of keeper 4 formation, as depicted in figs. 1 and 2, this hold-down mechanism comprises with base plate 1 to parallel pressing plate 7 be connected to columniform pressure head 5 on the pressing plate 7 and that be positioned at keeper 4 tops, pressure head 5 is pressed on the side of bearing cap 13, be provided with the support column 8 that is used for supporting pressing plate 7 that wore pressing plate 7 at base plate 1, have perforating on the pressing plate 7, pressing plate 7 and the locking nut that passes through on the support column 8 are locked.Pressure head 5 is connected on the pressing plate 7 by pressure head connector 6, and pressure head connector 6 passes pressing plate 7 and locks by hex nut 14.Because bearing cap 13 is guaranteeing that camshaft accurately rotates the accurate particularity of this part self, pressure head 5 adopts nylon to make, in case when clamping bearing cap 13 is produced excessive permanent compressive strain.The lower end of support column 8 is fastened on the vertical panel 3, and pressing plate 7 is passed in the upper end, and the perforating on the pressing plate 7 is the strip hole that arranges along pressing plate 7 length directions.Also cover has spring 9 on support column 8, and an end of spring 9 is against on the vertical panel 3, and the other end is against on the pressing plate 7.Be provided with the studdle 10 that the height of pressing plate 7 is regulated at base plate 1, an end of studdle 10 is threaded with base plate 1, and the other end is against on the pressing plate 7, and studdle 10 also passes through nut also tightly on base plate 1.Whole like this bearing cap 13 is just clamped on lathe fully, thick fine finishining has been carried out in last bottom surface that just can bearing cap 13, for fixing at lathe, these anchor clamps also are equipped with fixing with convenient whole anchor clamps of four soket head cap screws 12 at the corner location of base plate 1, can in time change when excessive when excessive deformation or keeper 4 wear extenies occur pressure head in the multiple clamping 5.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (8)
1. the thick finish-milling in engine camshaft bearing cap bottom surface is processed the anchor clamps that use, it is characterized in that: comprise base plate, be located at the hold-down mechanism that be used for to compress bearing cap on the base plate and be located at the detent mechanism that bearing cap is positioned on the base plate, this detent mechanism comprises that end face is keeper and at least two alignment pins that head is sphere on plane, bearing cap is placed on the plane of orientation of this keeper formation with its side, the bottom surface of bearing cap is positioned at the outside of anchor clamps, and the head of alignment pin is against on the end face of bearing cap.
2. the thick finish-milling in engine camshaft bearing cap bottom surface according to claim 1 is processed the anchor clamps that use, and it is characterized in that: described keeper is arc.
3. the thick finish-milling in engine camshaft bearing cap bottom surface according to claim 2 is processed the anchor clamps that use, and it is characterized in that: described alignment pin is provided with two, and line is arranged symmetrically with centered by the axis of two alignment pins and described bearing cap.
4. according to claim 2 or the anchor clamps that use of the thick finish-milling in 3 described engine camshaft bearing cap bottom surfaces processing, it is characterized in that: described hold-down mechanism matches with described keeper and compresses described bearing cap, bearing cap is pressed on the plane of orientation of keeper formation, this hold-down mechanism comprises with described base plate to parallel pressing plate be connected to columniform pressure head on the pressing plate and that be positioned at keeper top, pressure head is pressed on the side of bearing cap, be provided with the support column that is used for supporting pressing plate that wore pressing plate at base plate, have perforating on the pressing plate, pressing plate is also locked by the locking nut on the support column.
5. the anchor clamps of engine camshaft bearing cap bottom surface thick finish-milling processing use according to claim 4 is characterized in that: the strip hole of the perforating on the described pressing plate for arranging along the pressing plate length direction.
6. the thick finish-milling in engine camshaft bearing cap bottom surface according to claim 5 is processed the anchor clamps that use, it is characterized in that: be provided with a vertical panel at described base plate, described alignment pin is installed on the side of vertical panel, and described support column vertically is installed on the vertical panel.
7. the thick finish-milling in engine camshaft bearing cap bottom surface according to claim 6 is processed the anchor clamps that use, it is characterized in that: be provided with the studdle that the height of described pressing plate is regulated at described base plate, one end of studdle is connected with base thread, and the other end is against on the pressing plate.
8. the thick finish-milling in engine camshaft bearing cap bottom surface according to claim 7 is processed the anchor clamps that use, and it is characterized in that: also cover has spring on described support column, and an end of spring is against on the vertical panel, and the other end is against on the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521464 CN202861826U (en) | 2012-10-12 | 2012-10-12 | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521464 CN202861826U (en) | 2012-10-12 | 2012-10-12 | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202861826U true CN202861826U (en) | 2013-04-10 |
Family
ID=48028582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521464 Expired - Fee Related CN202861826U (en) | 2012-10-12 | 2012-10-12 | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202861826U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097074A (en) * | 2014-06-24 | 2014-10-15 | 苏州市职业大学 | Dual station milling clamp with press plate capable of being supported in floating mode |
| CN104175256A (en) * | 2014-07-21 | 2014-12-03 | 重庆长安汽车股份有限公司 | Assembling fixture for one-way valve of No.1 camshaft cover of engine |
| CN107433536A (en) * | 2017-08-21 | 2017-12-05 | 江苏瑞尔隆盛叶轮科技有限公司 | A kind of mesopore positioning and the clamp structure clamped |
| CN113579809A (en) * | 2021-08-02 | 2021-11-02 | 天润工业技术股份有限公司 | Large-scale engine bearing cap processing frock |
-
2012
- 2012-10-12 CN CN 201220521464 patent/CN202861826U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097074A (en) * | 2014-06-24 | 2014-10-15 | 苏州市职业大学 | Dual station milling clamp with press plate capable of being supported in floating mode |
| CN104175256A (en) * | 2014-07-21 | 2014-12-03 | 重庆长安汽车股份有限公司 | Assembling fixture for one-way valve of No.1 camshaft cover of engine |
| CN104175256B (en) * | 2014-07-21 | 2016-02-03 | 重庆长安汽车股份有限公司 | A kind of assembling jig for an engine camshaft cover check valve |
| CN107433536A (en) * | 2017-08-21 | 2017-12-05 | 江苏瑞尔隆盛叶轮科技有限公司 | A kind of mesopore positioning and the clamp structure clamped |
| CN113579809A (en) * | 2021-08-02 | 2021-11-02 | 天润工业技术股份有限公司 | Large-scale engine bearing cap processing frock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203622001U (en) | Novel fixture for rough and fine milling of bottom surface of bearing cover of engine camshaft | |
| CN203887583U (en) | Fixture used for drilling and milling of engine cylinder head bottom face | |
| CN202861826U (en) | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface | |
| CN103433776A (en) | Composite fixture with measurable pressure | |
| CN202668114U (en) | Top surface finish-milling clamp for cylinder cover | |
| CN101434041B (en) | Clamping fixture for transverse alignment of multiple-boss workpiece, and alignment and position method thereof | |
| CN206998316U (en) | A kind of gantry for diesel engine cylinder head processing is vertical to add fixture | |
| CN101972934A (en) | Mechanical clamping device for rotary workbench | |
| CN208450902U (en) | Fuel tank closes weldering flexible locating cramping apparatus | |
| CN102729067A (en) | Clamp for machining drilling and milling joint surface of engine cylinder head | |
| CN203621997U (en) | Clamp for rough milling machining of intake and exhaust surfaces of engine cylinder head | |
| CN206241955U (en) | bolt mounting tool | |
| CN103223608B (en) | A kind of end face finish-milling fixture being applicable to the gradient engine cylinder cover of band | |
| CN206065989U (en) | Engine cylinder cover end face bores Milling Machining clamping device | |
| CN204771669U (en) | Tight device in top | |
| CN204524940U (en) | Cylinder cover valve seating fine finishining frock | |
| CN103894851B (en) | Lateral register automatic clamping device and using method | |
| CN201848749U (en) | Adjustable clamp for grinding separation surfaces of automobile connecting rod body | |
| CN202825305U (en) | Clamp used for drilling and milling for top face of engine cylinder cover | |
| CN205733954U (en) | Fixture is rough milled in automobile engine cylinder head bottom surface | |
| CN202668193U (en) | Full floating type pneumatic clamp | |
| CN203804589U (en) | Automatic clamping device with side direction positioning | |
| CN202668151U (en) | Clamp for machining drilling-milling combined surface of cylinder cover of engine | |
| CN211564683U (en) | Hydraulic combined punching and shearing machine | |
| CN203621953U (en) | Novel fixture for fine milling of top surface of engine cylinder head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131012 |