CN109262333A - A kind of diameter adjustable positioning pin and its application method - Google Patents
A kind of diameter adjustable positioning pin and its application method Download PDFInfo
- Publication number
- CN109262333A CN109262333A CN201811296699.5A CN201811296699A CN109262333A CN 109262333 A CN109262333 A CN 109262333A CN 201811296699 A CN201811296699 A CN 201811296699A CN 109262333 A CN109262333 A CN 109262333A
- Authority
- CN
- China
- Prior art keywords
- shell
- positioning pin
- interior slide
- workpiece
- slide mass
- 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
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003892 spreading Methods 0.000 claims abstract description 6
- 230000011218 segmentation Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 5
- 230000004807 localization Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a kind of diameter adjustable positioning pin and its application method, including shell and interior slide mass, the top of the shell is open circles frustum, and it is evenly divided into pintongs, lower part is hollow cylinder, without segmentation, the top of the interior slide mass is the frustum of a cone, and lower part is cylindrical body.In a relaxed state, the interior slide mass be inserted into the shell it is hollow in, and interior slide body top can be in close contact with cover top portion.When cylinder pulls the interior slide mass, the shell upper spreading simultaneously locks workpiece, to realize the high accuracy positioning of workpiece, when cylinder return, the shell upper is restored to relaxed state, can facilitate taking-up workpiece.Positioning pin of the invention is used in fixture, can be improved the positioning accuracy of workpiece, to guarantee CNC machining accuracy, is improved CNC and is processed yields.
Description
Technical field
The present invention relates to clamping tool for machine work technical field more particularly to a kind of diameter adjustable positioning pin and its users
Method.
Background technique
It in field of machining, especially CNC manufacture field, needs to clamp workpiece using fixture, to carry out workpiece
It is accurately positioned.The positioning accuracy of workpiece directly influences machining accuracy.Round orifices orientation method refers to that there are more in inside workpiece
A circular locating openings, install cylindrical positioning pins in the corresponding position of fixture, are in close contact by positioning pin with location hole to realize
The positioning of workpiece.Certainly, the location hole on workpiece is also possible to other shapes, as long as positioning pin can closely match with location hole
It closes, just can complete positioning function.In following statement, above-mentioned localization method is referred to as " hole localization method ".
In order to enable workpiece to be conveniently sleeved on positioning pin, positioning pin outer diameter is usually smaller than workpiece location hole outer diameter
0.1~0.2mm, and positioning pin is once made, outer diameter just cannot be adjusted, in addition, positioning pin and workpiece location hole all have system
Tolerance is made, therefore, positioning pin and workpiece location hole can't always be holding close contact state, cause hole localization method abundant
The translation freedoms of workpiece are limited, to influence the positioning accuracy of workpiece, are not able to satisfy the mach needs of high-precision.
Summary of the invention
The present invention is intended to provide a kind of diameter adjustable positioning pin and its application method, to improve the positioning accurate of hole localization method
Degree.
A kind of diameter adjustable positioning pin, including shell and interior slide mass, the shell be hollow cylinder, the shell it is upper
Portion and workpiece location hole cooperate, and are divided into more valves；The lower part of the shell and fixture positioning hole cooperate；The interior slide mass exists
Sliding, as the interior slide mass is from the top of the shell to the lower slide of the shell, is divided into more in the shell
The shell upper of valve can be expanded.
Preferably, the top of the shell is open circles frustum, and is evenly divided into pintongs, and lower part is hollow cylinder,
Without segmentation.It is easy to process that the top of the shell is evenly divided into pintongs, and expansion effect is good.
Preferably, the diameter on the interior slide mass top is bigger than the diameter of lower part.
Preferably, the top of the interior slide mass is the frustum of a cone, and lower part is cylindrical body.The frustum of a cone is for strutting the shell
Top, the cylindrical body is used to pull the whole slide of the interior slide mass.
Preferably, in a relaxed state, the interior slide mass is inserted into the hollow of the shell on the top of the shell
In, and interior slide body top can be in close contact with cover top portion.
Preferably, the tail end of the lower cylinder of the interior slide mass has connection structure, and is connected by the connection structure
Connect pull unit.The pull unit can pull the interior slide mass sliding.
Preferably, the connection structure is external screw thread, and the pull unit is cylinder, the external screw thread and the cylinder
The internal screw thread of piston brace rod fastens.
Preferably, the shell and the interior slide mass are all made of the manufacture of the metal materials such as stainless steel.
A kind of application method of diameter adjustable positioning pin, comprising the following steps:
The lower part of the positioning pin shell is fastened in clamp base location hole by step 1, and by the interior slide mass
Tail end connect cylinder；
Workpiece is longitudinally inserted in the positioning pin by step 2, so that the top of the shell is inserted into workpiece location hole, and make work
Part plane of structure comes into full contact with clamp base；
Step 3, control cylinder tense the interior slide mass, and the shell upper spreading simultaneously laterally locks workpiece；
Step 4 applies pressure to workpiece plane of structure, longitudinal to lock workpiece；
Step 5 after the completion of work pieces process, controls cylinder return, and the shell upper is restored to relaxed state, takes out work
Part.
The working principle of the positioning pin is that, when cylinder pulls the interior slide mass, the shell upper spreading is simultaneously locked
Clamping of workpieces, to realize the high accuracy positioning of workpiece, when cylinder return, the shell upper is restored to relaxed state, can be square
Just workpiece is taken out.
Compared with the prior art, the advantages of the present invention are as follows can significantly improve the positioning accuracy of workpiece, to guarantee
CNC machining accuracy improves CNC and processes yields.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be right by taking " round orifices orientation method " as an example
Attached drawing needed in embodiment technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is a kind of embodiment of the invention, for those of ordinary skill in the art, without creative efforts, also
The attached drawing of other " hole localization methods " can be obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the positioning pin of the embodiment of the present invention in a relaxed state；
Fig. 2 is structural schematic diagram of the positioning pin of the embodiment of the present invention under tension.
The title that each component is marked in figure is as follows: 101, open circles frustum；102, hollow cylinder；103, the frustum of a cone；
104, cylindrical body；105, external screw thread.
Specific embodiment
The invention discloses a kind of diameter adjustable positioning pin and its application methods.Below in conjunction with the attached drawing 1- in the present invention
2, the technical solution in the present invention is clearly and completely described, it is clear that described is only a kind of implementation of the invention
Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of labour.
As shown in Figure 1, a kind of diameter adjustable positioning pin and its application method, including shell 101&102 and interior slide mass
103&104。
Preferably, the top of the shell is open circles frustum 101, and is evenly divided into pintongs, and lower part is hollow cylinder
Body 102, without segmentation.
Preferably, the top of the interior slide mass is the frustum of a cone 103, and lower part is cylindrical body 104.
Preferably, in a relaxed state, the interior slide mass 103&104 is inserted into the hollow of the shell 101&102
In, and can be in close contact at the top of interior slide mass 103&104 at the top of shell 101&102.
Preferably, the tail end of the lower cylinder 104 of the interior slide mass has external screw thread 105, can be with cylinder piston
The internal screw thread of connecting rod fastens.
Preferably, the shell 101&102 and the interior slide mass 103&104 are all made of the metal materials systems such as stainless steel
It makes.
A kind of application method of diameter adjustable positioning pin, comprising the following steps:
The lower part of the positioning pin shell is fastened in clamp base location hole by step 1, and by the interior slide mass
Tail end connect cylinder；
Workpiece is longitudinally inserted in the positioning pin by step 2, so that the top of the shell is inserted into workpiece location hole, and make work
Part plane of structure comes into full contact with clamp base；
Step 3, control cylinder tense the interior slide mass, and the shell upper spreading simultaneously laterally locks workpiece；
Step 4 applies pressure to workpiece plane of structure, longitudinal to lock workpiece；
Step 5 after the completion of work pieces process, controls cylinder return, and the shell upper is restored to relaxed state, takes out work
Part.
The working principle of the positioning pin is, when cylinder pulls the interior slide mass 103&104, as shown in Fig. 2, described
Shell 101&102 top spreading simultaneously locks workpiece, so that the high accuracy positioning of workpiece is realized, when cylinder return, such as Fig. 1 institute
Show, the top the shell 101&102 is restored to relaxed state, can facilitate taking-up workpiece.
Compared with the prior art, the advantages of the present invention are as follows can significantly improve the positioning accuracy of workpiece, to guarantee
CNC machining accuracy improves CNC and processes yields.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of diameter adjustable positioning pin, which is characterized in that including shell and interior slide mass, the shell is hollow cylinder, institute
The top and workpiece location hole for stating shell cooperate, and are divided into more valves；The lower part of the shell and clamp base location hole cooperate；
The interior slide mass slides in the shell, as the interior slide mass is from the top of the shell to the lower part of the shell
Sliding, is divided into the shell upper of more valves that can expand.
2. a kind of diameter adjustable positioning pin according to claim 1, which is characterized in that the top of the shell is open circles
Frustum, and it is evenly divided into pintongs, lower part is hollow cylinder, without segmentation.
3. a kind of diameter adjustable positioning pin according to claim 1, which is characterized in that the diameter on the interior slide mass top
It is bigger than the diameter of lower part.
4. a kind of diameter adjustable positioning pin according to claim 3, which is characterized in that the top of the interior slide mass is circle
Frustum, lower part are cylindrical body.
5. a kind of diameter adjustable positioning pin according to claim 4, which is characterized in that the lower cylindrical of the interior slide mass
The tail end of body has connection structure, and connects pull unit by the connection structure.
6. a kind of diameter adjustable positioning pin according to claim 5, which is characterized in that the connection structure is external screw thread,
The pull unit is cylinder, and the internal screw thread of the external screw thread and the piston brace rod of the cylinder fastens.
7. a kind of diameter adjustable positioning pin according to claim 1, which is characterized in that the top of the interior slide mass and institute
The top for stating shell can be in close contact.
8. a kind of diameter adjustable positioning pin according to claim 1, which is characterized in that the shell and the interior slide mass
It is all made of metal material manufacture.
9. a kind of application method of diameter adjustable positioning pin according to claim 1, which is characterized in that including following step
It is rapid:
The lower part of the positioning pin shell is fastened in clamp base location hole by step 1, and by the tail of the interior slide mass
End connection cylinder；
Workpiece is longitudinally inserted in the positioning pin by step 2, and the top of the shell is made to be inserted into workpiece location hole, and keeps workpiece horizontal
Face comes into full contact with clamp base；
Step 3, control cylinder tense the interior slide mass, and the shell upper spreading simultaneously laterally locks workpiece；
Step 4 applies pressure to workpiece plane of structure, longitudinal to lock workpiece；
Step 5 after the completion of work pieces process, controls cylinder return, and the shell upper is restored to relaxed state, takes out workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296699.5A CN109262333A (en) | 2018-11-01 | 2018-11-01 | A kind of diameter adjustable positioning pin and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296699.5A CN109262333A (en) | 2018-11-01 | 2018-11-01 | A kind of diameter adjustable positioning pin and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109262333A true CN109262333A (en) | 2019-01-25 |
Family
ID=65191611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296699.5A Pending CN109262333A (en) | 2018-11-01 | 2018-11-01 | A kind of diameter adjustable positioning pin and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109262333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586573A (en) * | 2021-07-08 | 2021-11-02 | 东风时代(武汉)电池***有限公司 | Variable diameter locating pin |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192968A (en) * | 1996-01-19 | 1997-07-29 | Koganei Corp | Positioning clamp device |
| CN102121496A (en) * | 2011-02-23 | 2011-07-13 | 广汽本田汽车有限公司 | Round pin-inserted positioning device and tensioning and positioning round pin thereof |
| CN202684568U (en) * | 2012-07-25 | 2013-01-23 | 重庆大江美利信压铸有限责任公司 | Integrated high-accuracy positioning and clamping fixture |
| CN104552143A (en) * | 2014-12-02 | 2015-04-29 | 重庆秦安机电股份有限公司 | Positioning pin device |
| CN104626015A (en) * | 2014-12-24 | 2015-05-20 | 佛山市宝航机械装备行业知识产权服务有限公司 | Round pin locating device |
| US20170050246A1 (en) * | 2015-08-19 | 2017-02-23 | GM Global Technology Operations LLC | Expanding locating and clamping pin |
| CN206263653U (en) * | 2016-08-31 | 2017-06-20 | 广东恒宝精密科技股份有限公司 | A kind of valve body processes built-in fast fixture |
| CN207402513U (en) * | 2017-11-02 | 2018-05-25 | 广西玉柴机器股份有限公司 | Self-expanding dowel mechanism |
| CN209239591U (en) * | 2018-11-01 | 2019-08-13 | 广东格林精密部件股份有限公司 | A kind of diameter adjustable positioning pin |
-
2018
- 2018-11-01 CN CN201811296699.5A patent/CN109262333A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192968A (en) * | 1996-01-19 | 1997-07-29 | Koganei Corp | Positioning clamp device |
| CN102121496A (en) * | 2011-02-23 | 2011-07-13 | 广汽本田汽车有限公司 | Round pin-inserted positioning device and tensioning and positioning round pin thereof |
| CN202684568U (en) * | 2012-07-25 | 2013-01-23 | 重庆大江美利信压铸有限责任公司 | Integrated high-accuracy positioning and clamping fixture |
| CN104552143A (en) * | 2014-12-02 | 2015-04-29 | 重庆秦安机电股份有限公司 | Positioning pin device |
| CN104626015A (en) * | 2014-12-24 | 2015-05-20 | 佛山市宝航机械装备行业知识产权服务有限公司 | Round pin locating device |
| US20170050246A1 (en) * | 2015-08-19 | 2017-02-23 | GM Global Technology Operations LLC | Expanding locating and clamping pin |
| CN206263653U (en) * | 2016-08-31 | 2017-06-20 | 广东恒宝精密科技股份有限公司 | A kind of valve body processes built-in fast fixture |
| CN207402513U (en) * | 2017-11-02 | 2018-05-25 | 广西玉柴机器股份有限公司 | Self-expanding dowel mechanism |
| CN209239591U (en) * | 2018-11-01 | 2019-08-13 | 广东格林精密部件股份有限公司 | A kind of diameter adjustable positioning pin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586573A (en) * | 2021-07-08 | 2021-11-02 | 东风时代(武汉)电池***有限公司 | Variable diameter locating pin |
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