CN207077237U - A kind of piston smart car positioning device for seam - Google Patents
A kind of piston smart car positioning device for seam Download PDFInfo
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- CN207077237U CN207077237U CN201721655047.7U CN201721655047U CN207077237U CN 207077237 U CN207077237 U CN 207077237U CN 201721655047 U CN201721655047 U CN 201721655047U CN 207077237 U CN207077237 U CN 207077237U
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- clamping
- clamping jaw
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Abstract
The utility model discloses a kind of piston smart car positioning device for seam, including the rolling clamp being fixed in machine tool main body, the seam positioning seat being arranged on rolling clamp, the circular edge of seam positioning seat is evenly arranged with several plane positionings projection, seam positioning seat is provided with the groove to match with piston blank top sidewall projection, using the axle center of rolling clamp as the equally distributed some clamping jaws in axle center, clamping jaw can clamp piston blank, and move down clamping piston blank in the axial direction of piston blank.Groove, projection on the utility model piston seam positioning seat can realize orientation, three-jaw clamping piston blank, it is oriented to and is moved axially downwards using taper, piston-top surface and seam positioning seat automatic attaching can be made in clamping process, automatically, effectively it can rapidly realize that positioning clamps turnery processing.
Description
Technical field
It the utility model is related to Piston Machining field, and in particular to a kind of piston smart car positioning device for seam.
Background technology
Piston is one of worst key components and parts of condition of work in engine, and it bears height for a long time in high-speed motion
The mechanical load and thermic load of intensity.Nowadays, with the day required engine power performance, economy, reliability and the feature of environmental protection
Beneficial strict, piston has evolved into the product for the high technology content for integrating the multinomial new technology such as light-high-strength new material,
To meet to the heat resistance of piston, wearability, steady guidance quality and sealing requirements, so as to reduce the friction loss of engine,
To reach the purpose of energy-saving and emission-reduction.At the same time, the processing technology of piston also can not be ignored, the size of its major surfaces and position
The requirement of precision is all very high.Generally, the factor for influenceing piston machining accuracy has following three:Process equipment, positioning method and
The selection of positioning datum.China's piston manufacturing no matter traditional handicraft or the advanced Piston Machining technology introduced, absolutely mostly
Number is used as the positioning datum of multiple working procedure using piston seam.Using seam as Piston Machining streamline each operation positioning datum, symbol
Unifying datum principle is closed, can easily process most of machined surfaces of piston, while can also reduce benchmark to greatest extent
Error caused by change, ensure the requirement of each several part size and form and position tolerance.
It is radially during three-jaw clamping piston but piston benchmark seam clamps machine tooling using horizontal hydraulic in the prior art
Mobile, three pawl seats can cause clamping force unbalanced with the reason such as chuck fit clearance size and clamping jaw length, after making clamping
The cylindrical position axis line radial deflection alignment of shafts of piston blank, can also make piston-top surface axial movement with locating table produce away from
From this cylindrical wall thickness to batch machining piston weight difference relevant with depth of inner cavity has an impact；Meanwhile outside piston clamps
Face and top locating surface are cast blank face, and there is irregular and out-of-flatness phenomenon on surface, only carry out top surface positioning with it is cylindrical
Three-jaw arc surface clamps, and does not carry out direction and location and the fixed point clamping of codes and standards to blank, and artificial piston-top surface of placing is determined
Position needs manpower to be adjacent to, and the locality that blank is placed, operator's is random larger, high to the skill set requirements of operator,
Labor intensity is also larger.
Therefore, prior art still lacks the piston seam that a kind of high precision, direction and location easy to operate and fixed point clamp
Orient fixed point location clamping device.
Utility model content
The purpose of this utility model is the defects of being directed to prior art, there is provided a kind of piston smart car positioning device for seam, energy
Enough realize accurate piston smart car seam precise positioning.
The technical solution of the utility model is as follows：A kind of piston smart car positioning device for seam, including it is fixed on machine tool main body
On rolling clamp, be arranged on rolling clamp circular seam positioning seat using the center of rolling clamp as axle center, the seam
The diameter of positioning seat is less than the diameter on piston blank head, and several positioning are uniformly distributed on the lateral wall of the seam positioning seat
Fixed seat, the madial wall of the seam positioning seat are evenly arranged with several plane positionings projection, the plane positioning it is raised with
The distance at rolling clamp center is less than the diameter at the top of piston blank, can be described to stop with carrying out plane positioning at the top of piston blank
Mouth positioning seat passes through interface arrangment and piston blank top sidewall coordinates.Piston blank top surface connects with 3 points on seam positioning seat
Touch and serve point location effect, the contact area of blank out-of-flatness face and positioning seat can be reduced, when can guarantee that batch Piston Machining
Depth of inner cavity is consistent, that is, ensures the weight difference of batch piston.
Preferably, also include being arranged on taper guidance set on rolling clamp, the taper guidance set include with
The center of rolling clamp is the equally distributed some clamping jaws in axle center, the clamping jaw fixed seat being fixedly connected with clamping jaw, the clamping jaw with
For the distance in rolling clamp axle center with being more than piston blank head diameter, clamping jaw can clamp piston blank, and in the axle of piston blank
Clamping piston blank is moved down to direction.Three-jaw clamping piston blank is oriented to using taper and moves axially downwards completion,
Piston-top surface and seam positioning seat automatic attaching can be made in clamping process, locating surface is contacted without detachment.
Preferably, the plane positioning projection is provided with 2-4, preferred value is 3, can be with being carried out at the top of piston blank
3 plane positionings.
Preferably, the clamping jaw is provided with 2-4, preferred value is 3, and clamping jaw clamping front end is diameter and piston blank
Head diameter identical arc surface, arc length are the 1/6-1/3 of piston blank head outer perimeter.
Preferably, the plane positioning is raised identical with the quantity of the clamping jaw, the plane positioning it is raised with it is described
The axis of clamping jaw, which corresponds, to be overlapped, and device positioning crystallized ability is more preferable.
Preferably, also include the clamping jaw fine tuning seat being arranged in clamping jaw axis mesopore.Clamping jaw fine tuning seat can be radially
Upper fixed piston blank so that fixture clamping is more firm.
Preferably, also include moveable vertical compressor arm；Described moveable vertical compressor arm one end is fixed with lathe, the other end
It can be inserted into the inner chamber of piston blank axial location.It piston blank top surface is contacted with seam positioning seat, prevent clamping jaw power
The reason such as unbalanced and the three point contact face for making piston-top surface leave positioning seat.
Preferably, also include being arranged at centre drill in rolling clamp spindle hole, can subsidiary positioning bases to piston blank
Centralized positioning.
Preferably, the interface arrangment is groove and projection fit structure, set in the piston blank top sidewall
Projection, the seam positioning seat are provided with the groove to match with the projection.Rectangle in piston blank top exterior walls is convex
Block, with orientation is closed, effectively can detect and analyze the Wall-Thickness Difference after Piston Machining, energy with the groove on seam positioning seat
Effectively determine Wall-Thickness Difference position and be adjusted.
The beneficial effects of the utility model have：
(1) the rectangle projection on piston blank top surface can have with the groove on seam positioning seat with orientation is closed
Wall-Thickness Difference after the detection of effect and analysis Piston Machining, can effectively determine Wall-Thickness Difference position and be adjusted；
(2) piston blank top surface serves point location effect with the three point contact on seam positioning seat, can reduce piston hair
Base out-of-flatness face and the contact area of seam positioning seat, depth of inner cavity is consistent when can guarantee that batch Piston Machining；
(3) moveable vertical compressor arm holds out against piston cavity, piston blank top surface is contacted with seam positioning seat, prevents
The reasons such as only clamping jaw power is unbalanced and the three point contact face for making piston-top surface leave positioning seat；
(4) three-jaw clamping piston blank is oriented to using taper and moves axially downwards completion, can be made in clamping process
Piston-top surface and seam positioning seat automatic attaching, locating surface is contacted without detachment.
Brief description of the drawings
Fig. 1 apparatus structure schematic diagrams；
The device top view of Fig. 2 embodiments 1；
The device top view of Fig. 3 embodiments 2；
Fig. 4 piston blank structural representations；
Fig. 5 piston blank top views；
Reference：Rolling clamp 1, taper axial component 2, clamping jaw 3, clamping jaw fine tuning seat 4, piston blank 5, moveable vertical
Compressor arm 6, seam positioning seat 7, centre drill 8, positioning fixed seat 9, plane positioning projection 10, groove 11, positioning fixed seat 12, work
Fill in blank head 13, piston blank top 14, piston blank top sidewall projection 15.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in figure 1, a kind of piston smart car positioning device for seam, including the rolling clamp 1 being fixed in machine tool main body, if
The circular seam positioning seat 7 using the axle center of rolling clamp 1 as axle center on rolling clamp 1 is put, the circular seam positioning seat 7
Diameter is less than the diameter on the head of piston blank 5, equally distributed against seam positioning seat 7 by axle center of the axle center of rolling clamp 1
Several positioning fixed seats 9, the circular edge of the seam positioning seat 7 are evenly arranged with several plane positioning projections 10, institute
The diameter that distance of the plane positioning projection 10 apart from the axle center of rolling clamp 1 is less than the top of piston blank 5 is stated, can be with piston blank
Top 14 carries out plane positioning, and the seam positioning seat 7 is coordinated by 14 side walls at the top of interface arrangment and piston blank, preferably
Ground, the seam positioning seat 7 are provided with the groove 11 to match with piston blank top sidewall projection 15, and the groove 11 is length
Cube shape, piston blank top sidewall projection 15 are also cuboid, and both are corresponding can clamping piston blank 5.The plane is determined
Position projection 10 is provided with 3, can carry out 3 plane positionings with the top of piston blank 14.The one end of moveable vertical compressor arm 6 and machine
Bed is fixed, and the other end can be inserted into the inner chamber of the axial location of piston blank 5.The top surface of piston blank 5 and seam positioning seat 7 can more preferably be made
Contact, the reason such as prevent clamping jaw power unbalanced and the three point contact face that makes piston-top surface leave positioning seat.Centre drill 8 is arranged at rotation
Turn in the spindle hole of fixture 1.
As shown in Fig. 2 taper guidance set 2 is arranged on rolling clamp 1, including using the axle center of rolling clamp 1 as axle center
Equally distributed some clamping jaws 3, the clamping jaw fixed seat 9 being fixedly connected with clamping jaw 3, the clamping jaw 3 is apart from the axle center of rolling clamp 1
Distance with more than the diameter of piston blank head 13, clamping jaw 3 can clamp piston blank 5, and downward in the axial direction of piston blank 5
Mobile clamping piston blank 5, piston-top surface and the automatic attaching of seam positioning seat 7 can be made in clamping process, is connect without detachment
Touch locating surface.Clamping jaw 3 is provided with 3, and clamping jaw 3 clamps front end as diameter and piston blank head diameter identical arc surface, arc
The 1/5 of a length of piston blank head outer perimeter.Clamping jaw fine tuning seat 4 is arranged in the axis mesopore of clamping jaw 3, the energy of clamping jaw fine tuning seat 4
Enough diametrically fixed piston blanks so that fixture clamping is more firm.
Seam processing verticle special lathe of the machine tool main body from Japan.The piston blank 3 such as Fig. 4 and Fig. 5 institutes
Show, be adapted with machine tool main body of the present utility model.The axis of raised 10 and 3 clamping jaws 3 of 3 plane positionings is one by one
Corresponding to overlap, device positioning crystallized ability is more preferable.
Using the utility model machining piston, artificial need to only orient the workpiece of piston blank 5 is positioned in clamping jaw 3, is pressed
Starting switch, it becomes possible to it is automatic, effectively, rapidly realize that positioning clamps turnery processing, ensure that 4 grams of the weight difference of piston with
It is interior, within Wall-Thickness Difference 0.2, within seam id tolerance 0.02, within depth tolerances 0.02, within the circularity 0.01 of seam, only
Within the flatness 0.01 of mouth end face.The labor intensity of operator can not only be mitigated, mistake proofing effect reaches zero-fault, and
The machining accuracy of this processing apparatus can also be improved, the Qualified Products Rate of this process is reached 100%.
Embodiment 2
The present embodiment only describes difference from Example 1.
As shown in figure 3, raised do not corresponded with the axis of 3 clamping jaws 3 of 3 plane positionings overlaps,
But correspond and overlap with the axis of 3 positioning fixed seats 12.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned realities
The mode of applying is changed and changed.Therefore, the utility model is not limited to embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into scope of the claims of the present utility model.In addition, although
Some specific terms have been used in this specification, but these terms are merely for convenience of description, not to the utility model structure
Into any restrictions.
Claims (9)
- A kind of 1. piston smart car positioning device for seam, it is characterised in that including be fixed in machine tool main body rolling clamp, set Circular seam positioning seat on rolling clamp using the center of rolling clamp as axle center, the diameter of the seam positioning seat is less than work The diameter on blank head is filled in, several positioning fixed seats are uniformly distributed on the lateral wall of the seam positioning seat, the seam is determined The madial wall of position seat is evenly arranged with several plane positionings projection, the raised distance with rolling clamp center of the plane positioning , can be with carrying out plane positioning at the top of piston blank less than the diameter at the top of piston blank, the seam positioning seat passes through clamping knot Structure coordinates with piston blank top sidewall.
- 2. a kind of positioner as claimed in claim 1, it is characterised in that the taper for also including being arranged on rolling clamp is led To component, the taper guidance set is included using the center of rolling clamp as the equally distributed some clamping jaws in axle center, consolidates with clamping jaw For the distance in the clamping jaw fixed seat connected surely, the clamping jaw and rolling clamp axle center with being more than piston blank head diameter, clamping jaw can Piston blank is clamped, and clamping piston blank is moved down in the axial direction of piston blank.
- 3. a kind of positioner as claimed in claim 2, it is characterised in that the plane positioning projection is provided with 2-4, can With carrying out 3 plane positionings at the top of piston blank.
- 4. a kind of positioner as claimed in claim 2, it is characterised in that the clamping jaw is provided with 2-4, before clamping jaw clamping It is the 1/6-1/3 of piston blank head outer perimeter to hold as diameter and piston blank head diameter identical arc surface, arc length.
- A kind of 5. positioner as described in claim 3 or 4, it is characterised in that the raised and described clamping jaw of plane positioning Quantity it is identical, raised correspond with the axis of the clamping jaw of the plane positioning overlaps.
- 6. a kind of positioner as claimed in claim 2, it is characterised in that also include the folder being arranged in clamping jaw axis mesopore Pawl fine tuning seat.
- 7. a kind of positioner as claimed in claim 2, it is characterised in that also including moveable vertical compressor arm；The activity Vertical compression bar one end is fixed with lathe, the inner chamber of other end insertion piston blank center.
- 8. a kind of positioner as claimed in claim 1, in addition to the centre drill being arranged in rolling clamp spindle hole.
- 9. a kind of positioner as claimed in claim 1, it is characterised in that the interface arrangment is that groove and projection coordinate knot Structure, projection is set in the piston blank top sidewall, the seam positioning seat is provided with the groove to match with the projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655047.7U CN207077237U (en) | 2017-11-30 | 2017-11-30 | A kind of piston smart car positioning device for seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655047.7U CN207077237U (en) | 2017-11-30 | 2017-11-30 | A kind of piston smart car positioning device for seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207077237U true CN207077237U (en) | 2018-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721655047.7U Active CN207077237U (en) | 2017-11-30 | 2017-11-30 | A kind of piston smart car positioning device for seam |
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| CN (1) | CN207077237U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454259A (en) * | 2018-09-26 | 2019-03-12 | 安徽省恒泰动力科技有限公司 | A kind of New Guide Device of aluminum piston Boring |
| CN109926857A (en) * | 2019-04-23 | 2019-06-25 | 上海矢力机械设备有限公司 | A kind of clamping device and its driving method |
| CN112207690A (en) * | 2020-10-13 | 2021-01-12 | 陈攀 | Grinding mechanism for connecting pin hole of air compressor piston |
| CN112276491A (en) * | 2020-10-23 | 2021-01-29 | 漳州市永良针纺机械有限公司 | Automatic flexible manufacturing process for central group of circular knitting machine |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
-
2017
- 2017-11-30 CN CN201721655047.7U patent/CN207077237U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454259A (en) * | 2018-09-26 | 2019-03-12 | 安徽省恒泰动力科技有限公司 | A kind of New Guide Device of aluminum piston Boring |
| CN109926857A (en) * | 2019-04-23 | 2019-06-25 | 上海矢力机械设备有限公司 | A kind of clamping device and its driving method |
| CN109926857B (en) * | 2019-04-23 | 2024-04-12 | 上海矢力机械设备有限公司 | Driving method of clamping device |
| CN112207690A (en) * | 2020-10-13 | 2021-01-12 | 陈攀 | Grinding mechanism for connecting pin hole of air compressor piston |
| CN112276491A (en) * | 2020-10-23 | 2021-01-29 | 漳州市永良针纺机械有限公司 | Automatic flexible manufacturing process for central group of circular knitting machine |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
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