CN205852328U - A kind of connecting rod cap positioning fixture - Google Patents
A kind of connecting rod cap positioning fixture Download PDFInfo
- Publication number
- CN205852328U CN205852328U CN201620825644.9U CN201620825644U CN205852328U CN 205852328 U CN205852328 U CN 205852328U CN 201620825644 U CN201620825644 U CN 201620825644U CN 205852328 U CN205852328 U CN 205852328U
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Abstract
This utility model relates to a kind of connecting rod cap positioning fixture, which solves and is currently used for the fixture of positioning linkage rod lid and there is location difficulty, centering difficulty, can not meet the technical problem of production in enormous quantities.It includes base, and base connects slide locating mechanism, key, backing pin one, backing pin two, support, holding screw, pressing plate one, pressing plate two, gib head pressing plate, hold-down bolt one, hold-down bolt two and four supportings；Slide locating mechanism includes that slip location-plate, slip location-plate are provided with and mates, with key, the keyway being connected, and slip location-plate connects handle, and the two ends of slip location-plate connect alignment pin one and alignment pin two, and keyway both sides are provided with U-lag one and U-lag two；Holding screw is connected with support；The two ends of base connect guide post one and guide post two；One end of pressing plate one is connected with guide post one, and the other end is connected with base by bolt one；One end of pressing plate two is connected with guide post two, and the other end is connected with base.This utility model is widely used in the location centering of connecting rod cap.
Description
Technical field
This utility model relates to Diesel Engine Technique Field, particularly relates to a kind of connecting rod cap positioning fixture.
Background technology
In Diesel Engine Technique Field, connecting rod is the union piece of piston and bent axle, the bowl cover of connecting rod and shaft two junction
Flatness, perpendicularity require tighter.The positioning fixture of the existing bowl cover as described in Fig. 1 and 2 in Figure of description, for this structure
Existing processing method is: design fixture is made using connecting rod cap end face as main locating surface, the convex shoulder face of connecting rod cap and bowl cover hole
For auxiliary positioning so that connecting rod cap has position correct, fixing in fixture, and will even by stud and dish type pressing plate
Bowl cover is fixed on fixture, and fixture utilizes key to be arranged on the workbench of vertical machining centre, then processing connecting rod cap faying face.
There is location difficulty, centering difficulty, production in enormous quantities can not be met in the existing fixture for positioning linkage rod lid
Technical problem.
Summary of the invention
This utility model in order to the fixture solving to be currently used for positioning linkage rod lid exist location difficulty, centering difficulty, can not
Meet the technical problem produced in enormous quantities, it is provided that a kind of position easily, centering easily, disclosure satisfy that the connecting rod cap of production in enormous quantities
Positioning fixture.
This utility model provide connecting rod cap positioning fixture, including base, on base connect have slide locating mechanism, key,
Backing pin one, backing pin two, support, holding screw, pressing plate one, pressing plate two, gib head pressing plate, hold-down bolt one, hold-down bolt two and four
Individual supporting；Slide locating mechanism includes that slip location-plate, slip location-plate are provided with and mates the keyway being connected, slip location-plate with key
Upper connection has handle, and the two ends of slip location-plate connect alignment pin one and alignment pin two, and keyway both sides are provided with U-lag one and U
Shape groove two；Holding screw is connected with support；
The two ends of base connect guide post one and guide post two；One end of pressing plate one is connected with guide post one, the other end
It is connected with base by bolt one；One end of pressing plate two is connected with guide post two, and the other end is connected with base；
Connect with hold-down bolt one and hold-down bolt two between U-lag one and the U-lag two of gib head pressing plate and slip location-plate
Connect.
Preferably, U-lag one and U-lag two and the centrosymmetry of keyway, the length of slip location-plate takes in bowl cover location
The 92%-97% of bore dia.
The beneficial effects of the utility model are, can realize efficiently quickly location, fast aligning in vertical machining centre, one
The clamping of several part can be realized on individual lathe, and readily accessible, reach the purpose efficiently produced in batches.
This utility model further feature, by the description of detailed description below, is clearly stated that.
Accompanying drawing explanation
Fig. 1 is the positioning fixture schematic diagram of prior art；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of connecting rod cap positioning fixture of the present utility model；
Fig. 4 is the top view of Fig. 1；
Fig. 5 is the structural representation of slide locating mechanism；
Fig. 6 is the structural representation of slide locating mechanism；
Fig. 7 is the schematic diagram arranging datum hole.
Symbol description in figure:
1. base, 2. guide post one, 3. guide post two, 4. pressing plate one, 5. holding screw, 6. support, 7. bolt one, 8. spiral shell
Female one, 9. backing pin one, 10. alignment pin one, 11. packing rings one, 12. keys, 13. packing rings two, 14. slip location-plates, 15. handles, 16.
Gib head pressing plate, 17. supportings, 19. pressing plates two, 20. bolts two, 21. nuts two, 22. backing pins two, 23. alignment pins two, 24. compress
Bolt one, 25. hold-down bolts two, 26.U shape groove one, 27.U shape groove two, 28. keyways, 29. datum holes, 30. platens.
31. bases, 32. supportings, 33. dish type pressing plates, 34. studs, 35. keys, 36. band shoulder nuts, 37. print positions.
Detailed description of the invention
As shown in fig. 3 to 7, the middle part of base 1 is the platform placing connecting rod cap, and intermediate position connects slip localization machine
Structure, key 12, backing pin 1, support 6, backing pin 2 22 and four supportings 17, slide locating mechanism includes slip location-plate 14, slides
Location-plate 14 is provided with the keyway 28 mated with key 12, and key 12 is connected with this keyway 28.Connect on slip location-plate 14 and have two handss
Handle 15, the two ends of slip location-plate 14 connect alignment pin 1 and alignment pin 2 23.Keyway 28 both sides are provided with U-lag 1 He
U-lag 2 27.The material of alignment pin 1 and alignment pin 2 23 uses 20GB/T699-1999, locating surface carburizing 0.8-1.2mm,
Harden 52-57HRC.
Holding screw 5 is connected with support 6.
The two ends of base 1 are the installing plates for being installed together with vertical machining centre, guide post 1 and guide post two
3 are connected on installing plate.One end of pressing plate 1 is provided with pilot hole, and the other end is provided with bolts assemblies hole, and guide post 1 is inserted
Entering in pilot hole, bolt 1 is connected through bolts assemblies hole with the middle deck of base 1, and nut 1 is connected with bolt 1.
One end of pressing plate 2 19 is provided with pilot hole, and the other end is provided with bolts assemblies hole, and guide post 23 inserts this pilot hole
In, bolt 2 20 is connected through this bolts assemblies hole with the middle deck of base 1, and nut 2 21 is connected with bolt 2 20.
Hold-down bolt 1 inserts in the U-lag 1 of slip location-plate 14 after passing gib head pressing plate 16, gib head pressing plate 16
And with packing ring 1 and nut fastening between hold-down bolt 1.Hold-down bolt 2 25 inserts to slide after passing gib head pressing plate 16 to be determined
In the U-lag 2 27 of position plate 14, with packing ring 2 13 and nut fastening between gib head pressing plate 16 and hold-down bolt 2 25.
The centrosymmetry of U-lag 1 and U-lag 2 27 and keyway 28, and diameter error is not more than 0.01, keyway 28 with
Key 12 is slidably matched, and its fit clearance is 0.030-0.04, and it is straight that length L of slip location-plate 14 typically takes bowl cover location endoporus
The 92%-97% in footpath.
During use, connecting rod cap is placed in four supportings 17, makes connecting rod cap contact with backing pin 1 and backing pin 2 22, slide
Detent mechanism is positioned in bowl cover hole, promotes two handles 15 to make slip location-plate 14 slide, until alignment pin 1 and alignment pin
The edge of 2 23 and the contact internal walls in bowl cover hole, withstand on the side of connecting rod cap with holding screw 5, with pressing plate 1 and pressing plate two
19 are pressed on bowl cover, are pressed in above bowl cover with hold-down bolt 1, hold-down bolt 2 25 by gib head pressing plate 16, are compressed by bowl cover,
Bowl cover hole can quickly be accurately positioned, centering.Slide locating mechanism eliminates the machining accuracy of part to be processed locating surface to location
The impact of precision.
Four supportings 17 are installed as main positioning reference plane, the three degree of freedom (shifting of z of limiting rod lid using end face
Dynamic, two rotary freedoms of y and x), using the convex shoulder face after polish as positioning reference plane, two freedom of limiting rod lid
Degree (movement of y, the rotary freedom of z), using the connecting rod cap side of polish as auxiliary positioning benchmark, limit feature is
Later one-movement-freedom-degree (one-movement-freedom-degree of x), by installing holding screw 5 in side supports 6, withstands on the side of bowl cover,
So six-freedom degree of connecting rod cap is completely restricted, and part is positioned completely.
Vertical machining centre workbench can be installed three connecting rod cap positioning fixtures simultaneously, use slide locating mechanism complete
After becoming the location work of a connecting rod cap, then carry out other operations of two, make three connecting rod caps reach quickly to position simultaneously.Add
Three connecting rod caps only need to be processed by work center successively, facilitates simple and direct, substantially increases working (machining) efficiency.
The purpose of slide locating mechanism design is the machining accuracy the eliminating part to be processed locating surface shadow to positioning precision
Ring, i.e. the location mode of slide locating mechanism is unrelated with the machining accuracy of part locating surface.
As it is shown in fig. 7, for determining apparatus processing coordinate round dot, clip base devises machine spindle centering benchmark
Hole.Datum hole location dimension mark uses the method printing actual value, eliminates the mismachining tolerance that fixture causes because of dimensional accuracy,
Improve the manufacturability that fixture manufactures, reduce manufacturing cost.H general taking equipment main shaft radius more than 1.4 times.Print position 37
Printing word height be 8mm.
The above only to preferred embodiment of the present utility model, is not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.Every in claim of the present utility model
In the range of restriction, any modification, equivalent substitution and improvement etc. done, all should be within protection domain of the present utility model.
Claims (2)
1. a connecting rod cap positioning fixture, is characterized in that, including base, described base connects and has slide locating mechanism, key, gear
Pin one, backing pin two, support, holding screw, pressing plate one, pressing plate two, gib head pressing plate, hold-down bolt one, hold-down bolt two and four
Supporting；Described slide locating mechanism includes that slip location-plate, described slip location-plate are provided with and mates, with described key, the keyway being connected,
Connecting on described slip location-plate and have handle, the two ends of described slip location-plate connect alignment pin one and alignment pin two, described
Keyway both sides are provided with U-lag one and U-lag two；Described holding screw is connected with support；
The two ends of described base connect guide post one and guide post two；One end of described pressing plate one is connected with guide post one, separately
One end is connected with base by bolt one；One end of described pressing plate two is connected with guide post two, and the other end is connected with base；
With hold-down bolt one and hold-down bolt between described gib head pressing plate and the U-lag one of described slip location-plate and U-lag two
Two connect.
2. according to connecting rod cap positioning fixture as claimed in claim 1, it is characterised in that described U-lag one and U-lag two and key
The centrosymmetry of groove, the length of described slip location-plate takes the 92%-97% of bowl cover location diameter of bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825644.9U CN205852328U (en) | 2016-08-02 | 2016-08-02 | A kind of connecting rod cap positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825644.9U CN205852328U (en) | 2016-08-02 | 2016-08-02 | A kind of connecting rod cap positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205852328U true CN205852328U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620825644.9U Active CN205852328U (en) | 2016-08-02 | 2016-08-02 | A kind of connecting rod cap positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205852328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263157A (en) * | 2017-07-25 | 2017-10-20 | 深圳市圆梦精密技术研究院 | A kind of part clamp for processing of robots |
-
2016
- 2016-08-02 CN CN201620825644.9U patent/CN205852328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263157A (en) * | 2017-07-25 | 2017-10-20 | 深圳市圆梦精密技术研究院 | A kind of part clamp for processing of robots |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |