CN204354121U - Large-sized flange reference circle line-plotting device - Google Patents
Large-sized flange reference circle line-plotting device Download PDFInfo
- Publication number
- CN204354121U CN204354121U CN201420854356.7U CN201420854356U CN204354121U CN 204354121 U CN204354121 U CN 204354121U CN 201420854356 U CN201420854356 U CN 201420854356U CN 204354121 U CN204354121 U CN 204354121U
- Authority
- CN
- China
- Prior art keywords
- bolt
- hole
- paintbrush
- reference circle
- chi
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of large-sized flange reference circle line-plotting device, comprise fagging, lock-screw, paintbrush chi, draw pin, it is characterized in that, have horizontal through hole in the middle part of fagging, paintbrush chi is inserted in horizontal through hole, and is fixed by lock-screw, draws the end that pin is located at paintbrush chi; The fagging of horizontal through hole both sides is arranged with front screw and the rear bolt hole of Vertical dimension, sliding bolt is threaded with rear bolt hole, and ball bearing is equipped with in the bottom of sliding bolt, and cover bolt is inserted in front screw, be placed with steel ball and spring in cover bolt inner chamber, hold-down bolt is connected with cover bolt thread in inner cavity.Large-sized flange reference circle line-plotting device of the present utility model, designs ingenious, and structure is simple, easy to use, can draw required reference circle exactly, and production cost is significantly less than existing large-scale compasses on large-sized flange.
Description
Technical field
The utility model relates to machining auxiliary equipment, especially a kind of large-sized flange reference circle line-plotting device.
Background technology
The reference circle position of each connecting hole on flange, before carrying out connecting hole Drilling operation, must must draw, generally adopt large-scale compasses in prior art by large-scale hollow flange on workpiece, and this large-scale compasses use inconvenient, and price is also very high.
Summary of the invention
The purpose of this utility model is just to provide a kind of easy to use, large-sized flange reference circle line-plotting device that production cost is low.
Large-sized flange reference circle line-plotting device of the present utility model, comprises fagging, lock-screw, paintbrush chi, draws pin, it is characterized in that, horizontal through hole is had in the middle part of fagging, paintbrush chi is inserted in horizontal through hole, and is fixed by lock-screw, draws the end that pin is located at paintbrush chi; The fagging of horizontal through hole both sides is arranged with front screw and the rear bolt hole of Vertical dimension, sliding bolt is threaded with rear bolt hole, and ball bearing is equipped with in the bottom of sliding bolt, and cover bolt is inserted in front screw, be placed with steel ball and spring in cover bolt inner chamber, hold-down bolt is connected with cover bolt thread in inner cavity.
Large-sized flange reference circle line-plotting device of the present utility model, during use, first according to diameter, the calibration diameter of a circle of flange, calculates the length of stretching out needed for paintbrush chi; Paintbrush chi is drawn out to desired location, and fixes with lock-screw; Regulate hold-down bolt, make the picture pin of the steel ball in sliding bolt inner chamber and paintbrush ruler end part in same level, namely steel ball and picture pin syringe needle are positioned over the upper level-end face of flange simultaneously; Regulate the position of sliding bolt, make the ball bearing of its end near flange excircle; Move whole device along flange excircle, ball bearing tightly moves along flange excircle, and steel ball moves along flange upper level-end face, draws pin and is just drawn by reference circle in flange upper level-end face.
Large-sized flange reference circle line-plotting device of the present utility model, designs ingenious, and structure is simple, easy to use, can draw required reference circle exactly, and production cost is significantly less than existing large-scale compasses on large-sized flange.Adopt the product that this large-sized flange reference circle line-plotting device is produced, its precision is higher, and the fitness of each part is higher, and the performance of product is stronger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side direction cut-away view of Fig. 1;
Fig. 3 is bowing to schematic diagram of Fig. 1.
Detailed description of the invention
A kind of large-sized flange reference circle line-plotting device, comprises fagging 1, lock-screw 6, paintbrush chi 7, draws pin 11, it is characterized in that, horizontal through hole is had in the middle part of fagging 1, paintbrush chi 7 is inserted in horizontal through hole, and is fixed by lock-screw 6, draws the end that pin 11 is located at paintbrush chi 7; The fagging 1 of horizontal through hole both sides is arranged with front screw and the rear bolt hole of Vertical dimension, sliding bolt 4 is threaded with rear bolt hole, ball bearing 8 is equipped with in the bottom of sliding bolt 4, sliding bolt 4 is also provided with setscrew nut 2, cover bolt 3 is inserted in front screw, be placed with steel ball 9 and spring 10 in cover bolt 3 inner chamber, hold-down bolt 5 is connected with cover bolt 3 thread in inner cavity.
Claims (1)
1. a large-sized flange reference circle line-plotting device, comprise fagging (1), lock-screw (6), paintbrush chi (7), draw pin (11), it is characterized in that: fagging (1) middle part has horizontal through hole, paintbrush chi (7) is inserted in horizontal through hole, and fixed by lock-screw (6), draw the end that pin (11) is located at paintbrush chi (7); The fagging (1) of horizontal through hole both sides is arranged with front screw and the rear bolt hole of Vertical dimension, sliding bolt (4) is threaded with rear bolt hole, ball bearing (8) is equipped with in the bottom of sliding bolt (4), sliding bolt (4) is also provided with setscrew nut (2), cover bolt (3) is inserted in front screw, be placed with steel ball (9) and spring (10) in cover bolt (3) inner chamber, hold-down bolt (5) is connected with cover bolt (3) thread in inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854356.7U CN204354121U (en) | 2014-12-30 | 2014-12-30 | Large-sized flange reference circle line-plotting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854356.7U CN204354121U (en) | 2014-12-30 | 2014-12-30 | Large-sized flange reference circle line-plotting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204354121U true CN204354121U (en) | 2015-05-27 |
Family
ID=53255614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854356.7U Expired - Fee Related CN204354121U (en) | 2014-12-30 | 2014-12-30 | Large-sized flange reference circle line-plotting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204354121U (en) |
-
2014
- 2014-12-30 CN CN201420854356.7U patent/CN204354121U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |