CN110039355B - Bidirectional tensioning positioning bolt - Google Patents
Bidirectional tensioning positioning bolt Download PDFInfo
- Publication number
- CN110039355B CN110039355B CN201910408337.9A CN201910408337A CN110039355B CN 110039355 B CN110039355 B CN 110039355B CN 201910408337 A CN201910408337 A CN 201910408337A CN 110039355 B CN110039355 B CN 110039355B
- Authority
- CN
- China
- Prior art keywords
- expansion shaft
- taper sleeve
- inner hole
- threaded
- hole
- 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.)
- Active
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 21
- 238000003801 milling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation 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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Clamps And Clips (AREA)
Abstract
The invention belongs to the field of aviation machining process equipment, and relates to a bidirectional tensioning positioning bolt. The device comprises an expansion shaft, a threaded taper sleeve, a cross Kong Zhuitao, a screw handle and a guide pin; the expansion shaft is provided with an inner hole, the left end of the expansion shaft is matched with the conical surface of the threaded taper sleeve, and the right end of the inner hole is matched with the conical surface of the through hole taper sleeve; the outer cylindrical surface of the expansion shaft is provided with a slot, and a crack-stopping hole is formed, so that the slot is staggered to ensure that the tension force is uniform; the left end of the expansion shaft is provided with a limit groove, and the right end of the expansion shaft is provided with a limit boss and a blank groove; the thread taper sleeve is provided with a guide pin which can slide along a limit groove at the left end of the expansion shaft; the screw handle is in a bent shape, is provided with a free cutter groove and an external thread, is inserted into an inner hole of the expansion shaft from the right end, is connected to the expansion shaft in a retracting way through a free cutter position on the rolling expansion shaft, and is in threaded transmission with the threaded taper sleeve at the front end of the screw handle; the inner hole of the through Kong Zhuitao is a through hole, and the through Kong Zhuitao is matched with the threaded transmission of the threaded taper sleeve and the screw handle to realize driven. The invention can realize accurate zero-clearance positioning and reliable tensioning.
Description
Technical Field
The invention belongs to the field of aviation machining process equipment, and relates to a bidirectional tensioning positioning bolt.
Background
In the field of aero-mechanical processing, both military and civilian aircraft, there are a large number of products positioned with one side and two holes. The product is generally processed on a numerical control milling machine, and a special milling fixture is required to be matched. The conventional fixture structure is formed by combining a cylindrical pin and a diamond pin to position the two holes, but no matter how high the precision of the positioning holes or the positioning pins is, a certain gap exists, otherwise, the product cannot be mounted on the tool; the gap does not affect the final accuracy of the product for small product sizes, but becomes a major factor affecting the product machining accuracy for large products. And when the large product with larger hole pitch of the two positioning holes is positioned by the two fixing pins, the product is difficult to align the two positioning pins at the same time. The present invention has been made in view of the above technical background.
Disclosure of Invention
Aiming at the problem that the hole pin fit clearance influences the machining precision of a final product, and the problem that when two fixing pins are used for positioning a large product with larger hole distance between two positioning holes, the product is difficult to align the two positioning pins at the same time, the invention provides a bidirectional tensioning positioning bolt.
The technical scheme of the invention is as follows:
the bidirectional tensioning positioning bolt comprises a tensioning shaft 1, a threaded taper sleeve 2, a via hole taper sleeve 3, a screw handle 4 and a guide pin 5;
the expansion shaft 1 is provided with an inner hole, both ends of the inner hole are provided with conical surfaces, the left end of the inner hole is matched with the conical surface of the threaded taper sleeve 2, and the right end of the inner hole is matched with the conical surface of the through hole taper sleeve 3; the outer cylindrical surface of the expansion shaft 1 is provided with a slot, and is provided with a crack-stopping hole, and the slot is staggered to ensure that the tension force is uniform; the left end of the expansion shaft 1 is provided with a limiting groove, the right end of the expansion shaft is provided with a limiting boss and a free cutter groove, and the limiting boss is used for limiting a product 6;
the thread taper sleeve 2 is provided with a guide pin 5, and the guide pin 5 can slide along a limit groove at the left end of the expansion shaft 1;
the screw handle 4 is bent, and the inclined end is used as a handle, so that the screw is convenient to rotate; the horizontal end is a screw rod, a hollow cutter groove and an external thread are formed, the screw rod is inserted into the inner hole of the expansion shaft 1 from the right end, the screw rod is connected to the expansion shaft 1 in a retracting manner through the hollow cutter position on the rolling expansion shaft 1, and the front end of the screw rod handle 4 is in thread transmission with the thread taper sleeve 2; the inner hole of the via hole taper sleeve 3 is a via hole, and driven is realized by matching with the threaded transmission of the threaded taper sleeve 2 and the screw handle 4; the screw handle 4 is rotated to tightly expand the positioning holes of the product 6 and the tool 7, so that zero-clearance positioning of the product 6 is realized.
The invention has the beneficial effects that:
the invention relates to a positioning tensioning device for positioning products with different sizes and specifications by two holes and one end face, which can realize accurate positioning and reliable tensioning of zero clearance when processing the products. The clamping process of the product is time-saving and labor-saving.
Drawings
FIG. 1 is a schematic illustration of the use of a bi-directional tension locating pin;
FIG. 2 is a cross-sectional view of a bi-directional tension locating pin in use;
FIG. 3 is a front view of a bi-directional tension locating pin;
FIG. 4 is a top view of a bi-directional tension locating pin;
in the figure: 1, expanding a shaft; 2, a thread taper sleeve; 3 through Kong Zhuitao; 4, a screw handle; 5 guiding pins; 6, a product; 7, tooling.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the drawings and the accompanying technical schemes.
As shown in fig. 2, the bidirectional tensioning positioning bolt comprises a tensioning shaft 1, a threaded taper sleeve 2, a via taper sleeve 3, a screw handle 4 and a guide pin 5;
the expansion shaft 1 is provided with an inner hole, both ends of the inner hole are provided with conical surfaces, the left end of the inner hole is matched with the conical surface of the threaded taper sleeve 2, and the right end of the inner hole is matched with the conical surface of the through hole taper sleeve 3; the outer cylindrical surface of the expansion shaft 1 is provided with a slot, and is provided with a crack-stopping hole, and the slot is staggered to ensure that the tension force is uniform; the left end of the expansion shaft 1 is provided with a limiting groove, the right end of the expansion shaft is provided with a limiting boss and a free cutter groove, and the limiting boss is used for limiting a product 6;
the thread taper sleeve 2 is provided with a guide pin 5, and the guide pin 5 can slide along a limit groove at the left end of the expansion shaft 1;
the screw handle 4 is bent, and the inclined end is used as a handle, so that the screw is convenient to rotate; the horizontal end is a screw rod, a hollow cutter groove and an external thread are formed, the screw rod is inserted into the inner hole of the expansion shaft 1 from the right end, the screw rod is connected to the expansion shaft 1 in a retracting manner through the hollow cutter position on the rolling expansion shaft 1, and the front end of the screw rod handle 4 is in thread transmission with the thread taper sleeve 2; the inner hole of the via hole taper sleeve 3 is a via hole, and driven is realized by matching with the threaded transmission of the threaded taper sleeve 2 and the screw handle 4; the screw handle 4 is rotated to tightly expand the positioning holes of the product 6 and the tool 7, so that zero-clearance positioning of the product 6 is realized.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (1)
1. The bidirectional tensioning positioning bolt is characterized by comprising a tensioning shaft (1), a threaded taper sleeve (2), a threaded Kong Zhuitao (3), a screw handle (4) and a guide pin (5);
the expansion shaft (1) is provided with an inner hole, both ends of the inner hole are provided with conical surfaces, the left end of the inner hole is matched with the conical surface of the threaded taper sleeve (2), and the right end of the inner hole is matched with the conical surface of the through Kong Zhuitao (3); the outer cylindrical surface of the expansion shaft (1) is provided with a slot, and a crack-stopping hole is formed, and the slot is staggered to ensure that the tension force is uniform; the left end of the expansion shaft (1) is provided with a limit groove, the right end of the expansion shaft is provided with a limit boss and a blank groove, and the limit boss is used for limiting a product (6);
the thread taper sleeve (2) is provided with a guide pin (5), and the guide pin (5) can slide along a limit groove at the left end of the expansion shaft (1);
the screw handle (4) is bent, and the inclined end is used as a handle, so that the screw is convenient to rotate; the horizontal end is a screw rod, a free cutter groove and an external thread are formed, the screw rod is inserted into an inner hole of the expansion shaft (1) from the right end, the screw rod is connected to the expansion shaft (1) in a retracting way through the free cutter groove on the rolling expansion shaft (1), and the front end of the screw rod handle (4) is in thread transmission with the thread taper sleeve (2); the inner hole of the through Kong Zhuitao (3) is a through hole, and the through Kong Zhuitao is matched with the threaded transmission of the threaded taper sleeve (2) and the screw handle (4) to realize driven; and the screw handle (4) is rotated to tightly expand the positioning holes of the product (6) and the tool (7), so that zero-clearance positioning of the product (6) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408337.9A CN110039355B (en) | 2019-05-16 | 2019-05-16 | Bidirectional tensioning positioning bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408337.9A CN110039355B (en) | 2019-05-16 | 2019-05-16 | Bidirectional tensioning positioning bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110039355A CN110039355A (en) | 2019-07-23 |
| CN110039355B true CN110039355B (en) | 2024-04-16 |
Family
ID=67282284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910408337.9A Active CN110039355B (en) | 2019-05-16 | 2019-05-16 | Bidirectional tensioning positioning bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110039355B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197664A (en) * | 1993-12-28 | 1995-08-01 | Ishikawajima Harima Heavy Ind Co Ltd | Locating pin for steel-frame clamping operation |
| DE29810585U1 (en) * | 1998-06-12 | 1998-09-17 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh, 09337 Hohenstein-Ernstthal | Positioning bolt of a quick-pass system |
| CN201086207Y (en) * | 2007-04-29 | 2008-07-16 | 江苏高精机电装备有限公司 | Self-cleaning tensioning setting pin |
| CN202571887U (en) * | 2012-05-08 | 2012-12-05 | 长春一东离合器股份有限公司 | Driven disc assembly balance clamp |
| CN204018767U (en) * | 2014-07-18 | 2014-12-17 | 四川高龙机械有限公司 | A kind of high accuracy expansion sleeve fixture for processing thin-walled revolving parts two end surface |
| CN206316396U (en) * | 2016-11-29 | 2017-07-11 | 洛阳风动工具有限公司 | A kind of elastic central spindle for processing driving wheel |
| CN210099546U (en) * | 2019-05-16 | 2020-02-21 | 沈阳飞机工业（集团）有限公司 | Bidirectional tensioning positioning bolt |
-
2019
- 2019-05-16 CN CN201910408337.9A patent/CN110039355B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197664A (en) * | 1993-12-28 | 1995-08-01 | Ishikawajima Harima Heavy Ind Co Ltd | Locating pin for steel-frame clamping operation |
| DE29810585U1 (en) * | 1998-06-12 | 1998-09-17 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh, 09337 Hohenstein-Ernstthal | Positioning bolt of a quick-pass system |
| CN201086207Y (en) * | 2007-04-29 | 2008-07-16 | 江苏高精机电装备有限公司 | Self-cleaning tensioning setting pin |
| CN202571887U (en) * | 2012-05-08 | 2012-12-05 | 长春一东离合器股份有限公司 | Driven disc assembly balance clamp |
| CN204018767U (en) * | 2014-07-18 | 2014-12-17 | 四川高龙机械有限公司 | A kind of high accuracy expansion sleeve fixture for processing thin-walled revolving parts two end surface |
| CN206316396U (en) * | 2016-11-29 | 2017-07-11 | 洛阳风动工具有限公司 | A kind of elastic central spindle for processing driving wheel |
| CN210099546U (en) * | 2019-05-16 | 2020-02-21 | 沈阳飞机工业（集团）有限公司 | Bidirectional tensioning positioning bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110039355A (en) | 2019-07-23 |
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