CN110039349A - A kind of high-precision pin hole positioning device - Google Patents
A kind of high-precision pin hole positioning device Download PDFInfo
- Publication number
- CN110039349A CN110039349A CN201910471009.3A CN201910471009A CN110039349A CN 110039349 A CN110039349 A CN 110039349A CN 201910471009 A CN201910471009 A CN 201910471009A CN 110039349 A CN110039349 A CN 110039349A
- Authority
- CN
- China
- Prior art keywords
- pin
- rises
- stick
- rise
- tension mandrel
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008828 contractile function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a kind of high-precision pin hole positioning devices, including fixture pallet, the outer rim of the fixture pallet is equipped with several through-holes, hydraulic expanding pin is installed in the through-hole, the hydraulic expanding pin includes that the pin that rises rises stick, the pin that the rises stick that rises is hollow structure, and through there is a tension mandrel, which can rise in the pin that rises is moved up and down in stick at middle part；The rise rear end of stick of the pin that rises is connected with connecting rod, and one end of the connecting rod is recessed forms groove downwards, and the tension mandrel protrudes into the groove, and can move up and down along the groove；Driving mechanism is installed in the rear end of the connecting rod, and the driving mechanism is for controlling the tension mandrel tensioner and contraction state.The present invention realizes the purpose eliminating position gap, preventing plowing from, to realize high accuracy positioning.
Description
Technical field
The present invention relates to cylinder block and head processing technique fields, and in particular to a kind of high-precision pin hole positioning device.
Background technique
The cabinets type components such as cylinder block and head are processed, " plane and two pits " positioning are usually all made of, as shown in Figure 1, traditional
" fixtures of plane and two pits " disadvantage: two pins are one " round pin " and one " link pin ", and when due to workpiece positioning, the positioning pin on fixture is needed
To enter the dowel hole on workpiece, be in contact with each other and cooperatively form positioning, to ensure that clamping workpiece is convenient (smoothly entering pin), positioning
Pin is clearance fit with workpiece pin hole, therefore the gap between the two will become systematic error, influence machining accuracy, simultaneously
During workpiece enters pin, workpiece pin hole inner wall inevitably with positioning pin contacts, causes scratch, scratches.Dowel hole is drawn
Wound, scratch will affect subsequent handling positioning, cause a series of adverse consequences.
Summary of the invention
For the defects in the prior art, the present invention provides high-precision pin hole positioning device, to avoid dowel hole appearance
It scratches, scratch, thus Improving The Quality of Products.
The present invention is achieved by the following technical solutions:
A kind of high-precision pin hole positioning device, including fixture pallet, the outer rim of the fixture pallet is equipped with several through-holes, described logical
Hydraulic expanding pin is installed, the hydraulic expanding pin includes that the pin that rises rises stick, and the pin that the rises stick that rises is hollow structure, and middle part is passed through in hole
It is installed with a tension mandrel, which can rise in the pin that rises moves up and down in stick；The pin that rises rise stick upper end be zigzag knot
Structure, the upper end of the tension mandrel be it is round table-like, when tension mandrel from the pin that rises rise stick stretch out after, the pin that rises rises the upper end expansion of stick,
In tensioner state, when tension mandrel from the pin that rises rise stick retract after, the pin that rises rises the upper end retraction of stick, is in contraction state；It is described
The rise rear end of stick of the pin that rises is connected with connecting rod, and one end of the connecting rod is recessed forms groove downwards, the tension mandrel
It protrudes into the groove, and can be moved up and down along the groove；The rear end of the connecting rod is installed by driving mechanism, the driving mechanism
For controlling the tension mandrel tensioner and contraction state.
Preferably, the driving device use hydraulic cylinder, the oil inlet and oil outlet of the hydraulic cylinder with it is described recessed
Slot connection.
Preferably, the rise upper end of stick of the pin that rises is equipped with positioning support.
The beneficial effects of the present invention are embodied in: high-precision pin hole positioning device of the invention uses " tensioner " principle, positioning
Pin can realize automatic tension/contractile function by hydraulic control, and before workpiece enters pin, the pin that rises is in contraction state (at this point, fixed
The gap of position pin and workpiece location hole is in 0.5mm), it can smoothly enter pin；After workpiece smoothly enters pin, positioning pin tensioner is eliminated
Gap between positioning pin and workpiece pin hole, it is ensured that pin and pin hole intimate contact are realized and eliminate position gap, prevent plowing from
Purpose, to realize high accuracy positioning.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of traditional " plane and two pits " positioning device；
Fig. 2 is the perspective view for the high-precision pin hole positioning device that one embodiment of the invention provides；
Fig. 3 is the main view of hydraulic expanding pin shown in Fig. 2；
Fig. 4 is the cross-sectional view of hydraulic expanding pin shown in Fig. 3.
In attached drawing, 1 fixture pallet, 2 hydraulic expanding pins, 3 pins that rise rise stick, 4 tension mandrels, 5 connecting rods, 6 grooves, 7 drivings
Mechanism, 8 positioning supports.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In conjunction with Fig. 2-Fig. 4, the high-precision pin hole positioning device of the present embodiment, including fixture pallet, the fixture pallet 1
Outer rim is equipped with several through-holes, is equipped with hydraulic expanding pin 2 in the through-hole, and the hydraulic expanding pin 2 includes that the pin that rises rises stick 3, described to rise
The pin stick 3 that rises is hollow structure, and through there is a tension mandrel 4, which can rise in the pin that rises is moved up and down in stick 3 at middle part；
The rise upper end of stick 3 of the pin that rises is laciniation, the upper end of the tension mandrel 4 be it is round table-like, when tension mandrel 4 is from the pin that rises
The stick 3 that rises stretch out after, the pin that rises rise stick 3 upper end expansion, be in tensioner state, when tension mandrel 4 from the pin that rises rise stick 3 retract after, rise
The upper end retraction for selling the stick 3 that rises, is in contraction state；The rise rear end of stick 3 of the pin that rises is fixed with connecting rod 5, and the connection is drawn
One end of bar 5, which is recessed downwards, forms groove 6, and the tension mandrel 4 protrudes into the groove 6, and can move up and down along the groove 6；
Driving mechanism 7 is installed in the rear end of the connecting rod 5, and the driving mechanism is for controlling 4 tensioner of tension mandrel and shrinking
State.
In the present embodiment, the driving device 7 uses hydraulic cylinder, the oil inlet and oil outlet of the hydraulic cylinder and institute
Groove connection is stated, hydraulic cylinder is controlled using PLC controller；The rise upper end of stick 3 of the pin that rises is equipped with positioning support 8,
The positioning support 8 is used to support workpiece.
The course of work of the invention is as follows:
After workpiece enters pin on fixture, lathe PLC sends signal to " hydraulic station ", and hydraulic station drives hydraulic cylinder, draws connection
Bar 5 from the pin that rises rise 3 upper end of stick stretch out, promote hydraulic expanding pin spreading, workpiece tensioner positioned；After completion of processing, lathe PLC is given
" hydraulic station " send signal, hydraulic station drive hydraulic cylinder, make connecting rod 5 from the pin that rises rise 3 upper end of stick retract, promote hydraulic expanding
Pin retraction, workpiece is unclamped.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (3)
1. a kind of high-precision pin hole positioning device, including fixture pallet, it is characterised in that: the outer rim of the fixture pallet (1) is set
There are several through-holes, be equipped in the through-hole hydraulic expanding pin (2), the hydraulic expanding pin (2) is risen stick (3) including the pin that rises, described to rise
Pin rises by stick (3) as hollow structure, and through there is a tension mandrel (4), which can rise in stick (3) in the pin that rises at middle part
It moves up and down；The rise upper end of stick (3) of the pin that rises is laciniation, the upper end of the tension mandrel (4) be it is round table-like, when rising
Tight mandrel (4) rises after stick (3) stretch out from the pin that rises, and the pin that rises rises the upper end expansion of stick (3), tensioner state is in, when tension mandrel (4)
Rise after stick (3) retracts from the pin that rises, the pin that rises rises the upper end retraction of stick (3), is in contraction state；The pin that rises rises the rear ends of stick (3)
It is connected with connecting rod (5), one end of the connecting rod (5), which is recessed downwards, to be formed groove (6), and the tension mandrel (4) is stretched
Enter in the groove (6), and can be moved up and down along the groove (6)；Driving mechanism (7) are installed in the rear end of the connecting rod (5), institute
Driving mechanism is stated for controlling the tension mandrel (4) tensioner and contraction state；.
2. high-precision pin hole positioning device according to claim 1, it is characterised in that: the driving device (7) uses liquid
Compressing cylinder, the oil inlet and oil outlet of the hydraulic cylinder are connected to the groove.
3. high-precision pin hole positioning device according to claim 1, it is characterised in that: the pin that rises rises the upper ends of stick (3)
Positioning support (8) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471009.3A CN110039349A (en) | 2019-05-31 | 2019-05-31 | A kind of high-precision pin hole positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471009.3A CN110039349A (en) | 2019-05-31 | 2019-05-31 | A kind of high-precision pin hole positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110039349A true CN110039349A (en) | 2019-07-23 |
Family
ID=67284326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471009.3A Pending CN110039349A (en) | 2019-05-31 | 2019-05-31 | A kind of high-precision pin hole positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110039349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043124A (en) * | 2019-12-13 | 2020-04-21 | 一汽解放汽车有限公司 | Novel locating pin with locking function |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028138A1 (en) * | 1999-10-26 | 2001-10-11 | Chupick Charles | Free-floating hydraulic clamping device with edge-gripping arbor |
| CN103465070A (en) * | 2013-09-22 | 2013-12-25 | 江苏毅合捷汽车科技股份有限公司 | Hole positioning jig |
| CN203471349U (en) * | 2013-09-24 | 2014-03-12 | 芜湖陀曼精机科技有限公司 | Vertical lathe workbench clamping mechanism |
| CN204487224U (en) * | 2015-02-26 | 2015-07-22 | 盛瑞传动股份有限公司 | The hydraulic tool of processing oil scavenge pump pump cover |
| CN106475831A (en) * | 2016-12-10 | 2017-03-08 | 保定向阳航空精密机械有限公司 | Minor diameter blank hole Self-centering device |
| CN106736736A (en) * | 2016-12-07 | 2017-05-31 | 宁夏工商职业技术学院 | A kind of fixture suitable for the processing of bead part |
| CN107127612A (en) * | 2017-06-17 | 2017-09-05 | 无锡瑞真精机股份有限公司 | Process the vertical vehicle hydraulic pressure fixture of automobile turbocharger housing outlet side |
| CN206493148U (en) * | 2017-02-20 | 2017-09-15 | 重庆元享机械有限公司 | Dowel device for plane and two pitses |
| CN206824688U (en) * | 2017-05-17 | 2018-01-02 | 杭州鸿昱科技有限公司 | One kind centering tension tool fixture |
| CN108869499A (en) * | 2018-09-03 | 2018-11-23 | 菲斯达精密工业部件（苏州）有限公司 | Hydraulic positioning pin |
| CN210731742U (en) * | 2019-05-31 | 2020-06-12 | 海纳川（滨州）轻量化汽车部件有限公司 | High-precision pin hole positioning device |
-
2019
- 2019-05-31 CN CN201910471009.3A patent/CN110039349A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028138A1 (en) * | 1999-10-26 | 2001-10-11 | Chupick Charles | Free-floating hydraulic clamping device with edge-gripping arbor |
| CN103465070A (en) * | 2013-09-22 | 2013-12-25 | 江苏毅合捷汽车科技股份有限公司 | Hole positioning jig |
| CN203471349U (en) * | 2013-09-24 | 2014-03-12 | 芜湖陀曼精机科技有限公司 | Vertical lathe workbench clamping mechanism |
| CN204487224U (en) * | 2015-02-26 | 2015-07-22 | 盛瑞传动股份有限公司 | The hydraulic tool of processing oil scavenge pump pump cover |
| CN106736736A (en) * | 2016-12-07 | 2017-05-31 | 宁夏工商职业技术学院 | A kind of fixture suitable for the processing of bead part |
| CN106475831A (en) * | 2016-12-10 | 2017-03-08 | 保定向阳航空精密机械有限公司 | Minor diameter blank hole Self-centering device |
| CN206493148U (en) * | 2017-02-20 | 2017-09-15 | 重庆元享机械有限公司 | Dowel device for plane and two pitses |
| CN206824688U (en) * | 2017-05-17 | 2018-01-02 | 杭州鸿昱科技有限公司 | One kind centering tension tool fixture |
| CN107127612A (en) * | 2017-06-17 | 2017-09-05 | 无锡瑞真精机股份有限公司 | Process the vertical vehicle hydraulic pressure fixture of automobile turbocharger housing outlet side |
| CN108869499A (en) * | 2018-09-03 | 2018-11-23 | 菲斯达精密工业部件（苏州）有限公司 | Hydraulic positioning pin |
| CN210731742U (en) * | 2019-05-31 | 2020-06-12 | 海纳川（滨州）轻量化汽车部件有限公司 | High-precision pin hole positioning device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043124A (en) * | 2019-12-13 | 2020-04-21 | 一汽解放汽车有限公司 | Novel locating pin with locking function |
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