CN209364455U - A kind of machining fixture of soft thin-wall workpiece - Google Patents
A kind of machining fixture of soft thin-wall workpiece Download PDFInfo
- Publication number
- CN209364455U CN209364455U CN201822175978.8U CN201822175978U CN209364455U CN 209364455 U CN209364455 U CN 209364455U CN 201822175978 U CN201822175978 U CN 201822175978U CN 209364455 U CN209364455 U CN 209364455U
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- CN
- China
- Prior art keywords
- shaft
- fixture
- locating slot
- wall workpiece
- soft thin
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Abstract
The utility model belongs to the technical field of thin-wall workpiece, and in particular to a kind of machining fixture of soft thin-wall workpiece, the machining fixture include fixture body (1) and eccentric shaft (3)；Fixture body (1) upper surface is cascaded surface, cascaded surface includes top surface and overmoving surface (L), locating slot is arranged on top surface, the bottom surface (K) of locating slot is parallel with top surface, and overmoving surface (L) has to be lower than the bottom surface (K) of locating slot, two sides of locating slot are vertical with bottom surface (K), and two sides of locating slot are vertical, eccentric shaft (3) is multi-diameter shaft, and the upper end locating shaft axis and lower end connecting shaft axis of multi-diameter shaft are not point-blank, eccentric shaft (3) lower section connecting shaft is threadedly coupled with fixture body (1).The utility model structure is simple, easy to use, meets the processing quality requirement of soft thin-wall workpiece, suitable for there is the processing of the soft thin-wall workpiece of location hole in workpiece square edge.
Description
Technical field
The utility model belongs to the technical field of thin-wall workpiece, and in particular to a kind of machining fixture of soft thin-wall workpiece,
Suitable for there is the processing of the soft thin-wall workpiece of location hole in workpiece square edge.
Background technique
As shown in Figure 1, part category thin-walled plate shaped piece, one side is plane, and another side removes about 300 square millimeters
The face H be matching surface, remaining be compound angle face, edge thinnest part is only 1 millimeter.The part material is aluminum component, cannot be adopted
The dimensional accuracy and form tolerance requirement for guaranteeing thickness A with the traditional machining processes of steel part grinding facet, in XK715/2 number
It is used on the basis of entire bottom surface E on control milling machine, compresses mode with pressing plate and processed, it is total when as a result thickness multiple spot detects
There is local off-gage phenomenon, product qualification rate only up to 20% seriously affects manufacturing schedule, larger production cost after processing.Soft material
Such as aluminium, copper.
Utility model content
The purpose of the utility model is to provide a kind of machining fixtures of soft thin-wall workpiece, and structure is simple, easy to use, full
The processing quality requirement of the soft thin-wall workpiece of foot.
The technical solution of the utility model is, a kind of machining fixture of soft thin-wall workpiece includes fixture body and eccentric shaft；
Fixture body upper surface is cascaded surface, and cascaded surface includes top surface and overmoving surface, and locating slot is arranged on top surface, locating slot
Bottom surface it is parallel with top surface, and overmoving surface has to be lower than the bottom surface of locating slot, two sides of locating slot and plane perpendicular, and fixed
Two sides of position slot are vertical, and eccentric shaft is multi-diameter shaft, and the upper end locating shaft axis of multi-diameter shaft and lower end connecting shaft axis are not
Point-blank, eccentric shaft lower section connecting shaft is threadedly coupled with fixture body.
Part locating shaft and lower part connecting shaft have 0.3 millimeter of eccentricity on eccentric shaft.
The bottom of fixture body is provided with flange, and the upper surface of flange is used to fixture body being fixed on milling machine table, i.e.,
It is clamped on an upper by machine tool fixture.
Eccentric shaft upper end center has Hexagon hole.
The beneficial effects of the utility model, the utility model reduce positioning reference plane, greatly reduce positioning reference plane and are produced
Raw error；Original process are used to be positioned on the basis of entire bottom surface D, itself flatness tolerance is insufficient to compensate for being filled by positioning
Card, measurement, the error of the generations such as processing and equipment precision cannot meet the technological requirements, and now just be positioned using the hole E on workpiece, card
Particularly K plane makees positioning datum, presses real workpiece, the clamping of eccentric shaft side with hand.Since the area of positioning reference plane K is only D
Face 1/6th, position error accordingly reduce 1/6th, and position error is substantially reduced, and yield rate is up to 98% after improvement；This is practical
Novel change is loaded mode, and pressing plate compresses laborious time-consuming, now uses the clamping of eccentric shaft extrusion side, fast power-saving；This is practical new
Type is loaded high-efficient, and effect is enhanced about more than once, and fixture structure is simple, and outer dimension is small, is not required to that original lathe is transformed.
Detailed description of the invention
Fig. 1 is using a kind of design of part schematic diagram of the machining fixture of soft thin-wall workpiece of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is a kind of machining fixture structural schematic diagram of soft thin-wall workpiece of the utility model；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the assembling structure schematic diagram of part to be processed and the utility model；
Fig. 6 is the top view of Fig. 5.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings of the specification.
As shown in Figures 1 to 6, a kind of machining fixture of soft thin-wall workpiece of the utility model includes fixture body and eccentric shaft
3。
1 upper surface of fixture body is cascaded surface, and cascaded surface includes top surface and overmoving surface L.Locating slot is arranged on top surface, positioning
The bottom surface K of slot is parallel with top surface, and overmoving surface L has to be lower than the bottom surface K of locating slot, reaches the non-cooperation bottom for making workpiece to be machined
Face D is hanging, reduces position error, and eliminating workpiece deformation influences.Two sides of locating slot are vertical with bottom surface K, and locating slot
Two sides are vertical, constitute 90 degree right-angle surfaces, and when processing, positioning surface is squeezed on two sides of locating slot and workpiece, position
Clamping.The bottom of fixture body 1 is provided with flange, and the upper surface M of flange is used to fixture body 1 being fixed on milling machine table, i.e.,
It is clamped on the M of upper surface by machine tool fixture, realizes and fix.The bottom surface K of locating slot is equipped with a threaded hole for installing screw thread
Eccentric shaft 3,3 upper end center of eccentric shaft have Hexagon hole, and eccentric shaft 3 is multi-diameter shaft, and two sections of axis of multi-diameter shaft are not at one
On straight line, i.e., 3 upper section cylinder locating shaft of eccentric shaft and lower section connecting shaft have 0.3 millimeter of eccentricity, lower section connecting shaft and fixture body 1
It is threadedly coupled, squeezes on 90 degree of two sides of workpiece to fixture body 1 by 0.3 millimeter of eccentricity.
Process is as follows；Fixture body 1 is fixed on milling machine table, and the location hole E of workpiece hole is sleeved on eccentric shaft 3
On Upper cylindrical face, at real work pieces mate face, is screwed, rotated with the Hexagon hole of die nut and 3 upper end center of eccentric shaft
Eccentric shaft 3, until the two sides right-angle surface of locating slot on right angle positioning surface on workpiece and fixture body 1 is compacted.Clamping force is from inclined
0.3 eccentricity of mandrel.The utility model is used to process the surface of thin-wall workpiece, guarantees that thickness A is as shown in Figure 2.After improvement
Yield rate is up to 99.8%.
Above-described embodiment is by taking XK715/2 CNC milling machine as an example, certainly, can also be with for machining center or other equipment.
In conclusion the content of the utility model is not limited in the above embodiments, in same area it is insighted it
Scholar can propose other embodiments easily within the technological guidance's thought of the utility model, but this embodiment is all wrapped
It includes within the scope of the utility model.
Claims (4)
1. a kind of machining fixture of soft thin-wall workpiece, it is characterized in that: the machining fixture includes fixture body (1) and eccentric shaft (3)；
Fixture body (1) upper surface is cascaded surface, and cascaded surface includes top surface and overmoving surface (L), and locating slot is arranged on top surface, positioning
The bottom surface (K) of slot is parallel with top surface, and overmoving surface (L) has to be lower than the bottom surface (K) of locating slot, two sides of locating slot and bottom
Vertically, and two sides of locating slot are vertical in face (K), and eccentric shaft (3) is multi-diameter shaft, and the upper end locating shaft axis of multi-diameter shaft and
Not point-blank, eccentric shaft (3) lower section connecting shaft is threadedly coupled lower end connecting shaft axis with fixture body (1).
2. a kind of machining fixture of soft thin-wall workpiece described in accordance with the claim 1, it is characterised in that: eccentric shaft (3) top
Locating shaft and lower part connecting shaft is divided to have 0.3 millimeter of eccentricity.
3. a kind of machining fixture of soft thin-wall workpiece described in accordance with the claim 1, it is characterised in that: the bottom of fixture body (1)
Portion is provided with flange, and the upper surface (M) of flange is used to fixture body (1) being fixed on milling machine table, that is, passes through machine tool fixture
It is clamped on upper surface (M).
4. a kind of machining fixture of soft thin-wall workpiece described in accordance with the claim 1, it is characterised in that: eccentric shaft (3) upper end
There is Hexagon hole at center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175978.8U CN209364455U (en) | 2018-12-24 | 2018-12-24 | A kind of machining fixture of soft thin-wall workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175978.8U CN209364455U (en) | 2018-12-24 | 2018-12-24 | A kind of machining fixture of soft thin-wall workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209364455U true CN209364455U (en) | 2019-09-10 |
Family
ID=67830583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822175978.8U Expired - Fee Related CN209364455U (en) | 2018-12-24 | 2018-12-24 | A kind of machining fixture of soft thin-wall workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209364455U (en) |
-
2018
- 2018-12-24 CN CN201822175978.8U patent/CN209364455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20201224 |