CN201940817U - Automatic tensioning mechanism of accessory head - Google Patents
Automatic tensioning mechanism of accessory head Download PDFInfo
- Publication number
- CN201940817U CN201940817U CN2010206303452U CN201020630345U CN201940817U CN 201940817 U CN201940817 U CN 201940817U CN 2010206303452 U CN2010206303452 U CN 2010206303452U CN 201020630345 U CN201020630345 U CN 201020630345U CN 201940817 U CN201940817 U CN 201940817U
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- CN
- China
- Prior art keywords
- piston
- automatic tensioning
- tensioning mechanism
- pawl
- head
- 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 - Lifetime
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Abstract
An automatic tensioning mechanism of an accessory head belongs to the technical field for designing and manufacturing an automatic tensioning mechanism of a heavy type numerical control boring-milling machine accessory head. A wedge is provided between a draw hook and a piston. A positioning sleeve is sleeved outside the draw hook. A drawing pawl is provided in a drawing opening. A drawing pawl positioning sleeve is provided between the drawing pawl and a cylinder body. A drawing nail is provided in the drawing pawl. The automatic tensioning mechanism of an accessory head is mounted in four chambers of a transition connection disc of a heavy-type numerical control gantry boring-milling machine. An operation principle of the automatic tensioning mechanism of an accessory head is characterized in that: when the oil in the transition connection disc enters from a lower oil inlet of a tensioning piston cylinder. The piston moves upwards so the wedge slides in the piston. The positioning sleeve blocks the drawing pawl, and the drawing pawl grips the drawing nail. When the oil in the transition connection disc enters from an upper oil inlet, the piston moves downwards. Therefore the wedge does not block the draw hook, and the draw hook moves upwards for pushing the drawing pawl for opening. When a spring in the draw hook pushes a protective cover, the drawing nail ejects out. When the accessory head is placed on a head changing vehicle, a slide carriage of a machine tool can move to a certain position, and the drawing nail on the auxiliary head is gripped through lifting a ram, thereby realizing a purpose of automatic tensioning and changing.
Description
Technical field
The utility model belongs to the design and the manufacturing technology field of the automatic tensioning mechanism of heavy type numerical control boring and milling machine annex head.
Background technology
The manually-operateds of adopting that are installed of heavy type numerical control plane milling and boring machine annex head at present, the annex head is contained on the main shaft end face, with trip bolt it is fixed then more.This mounting means bothers very much, and labour intensity is also bigger.Because the weight of annex head itself is just heavier.When changing the annex head, at first to manually lay down it, change another annex head then, manually install again after the aligned position.Poor stability, inefficiency, the error ratio that manually is installed is bigger, can cause machining accuracy low.
Summary of the invention
It is little that the purpose of this utility model provides a kind of volume, easy for installation, and working pulling force is big, and loading and unloading can be saved the automatic tensioning mechanism of annex head of a lot of manpower and materials, to solve the problem that exists when existing annex head is installed.
Structure of the present utility model is as shown in drawings: piston is housed in cylinder body.In the inside of piston one drag hook is arranged.Centre at drag hook has spring.One voussoir is arranged between drag hook and piston.Voussoir is that drag hook plays the location.The certain position of suit cover outside the outside of drag hook.At the rear portion of drag hook one pulling claw mouth is arranged, grasping has a pulling claw in the mouth.One pulling claw positioning sleeve is arranged between pulling claw and cylinder body.Have blind flange at the cylinder body rear portion.There is a protective cover outside of spring.The inside at pulling claw has blind rivet.Hexagonal trip bolt on the periphery of flange, having.Fuel feed hole on the top of cylinder body has, bottom have following fuel feed hole.
Installation of the present utility model is four cavity the insides that it is installed in the transition terminal pad of heavy type numerical control plane milling and boring machine, fixes by the hexagonal trip bolt on the blind flange.Its operation principle is: when the oil in the transition terminal pad from the following fuel feed hole of tension piston cylinder when entering, piston moves up, and causes voussoir to slide at internal piston, positioning sleeve blocks pulling claw, pulling claw is caught blind rivet.When the oil in the transition terminal pad when last fuel feed hole enters, piston moves down, thereby makes voussoir no longer block drag hook, moves on the drag hook to promote pulling claw and open, blind rivet ejected when the spring in the drag hook promoted protective cover.When the annex head being put into when changing on the car, can allow the slide of lathe go to a certain position, grasp blind rivet on the annex head by the lifting of ram, realize the purpose that tension is automatically changed.Can reduce many work operations like this, improve efficient.Characteristics of the present utility model are, volume is little, and is easy for installation, are active in one's movements accurately, and working pulling force is big, and is safe and reliable, the automatic tensioning mechanism of annex head that efficient is high.
Description of drawings
Accompanying drawing is the utility model structural representation
Hexagonal trip bolt 12-BT50 blind rivet 13-goes up fuel feed hole under the fuel feed hole 14-in the 1-cylinder body 2-piston 3-voussoir 4-drag hook 5-positioning sleeve 6-protective cover 7-pulling claw positioning sleeve 8-pulling claw 9-blind flange 10-spring 11-
The specific embodiment
Structure of the present utility model is as shown in drawings: piston 2 is housed in cylinder body 1.One drag hook 4 is arranged in the inside of piston.Have spring 10 in the centre of drag hook.One voussoir 3 is arranged between drag hook and piston.The certain position of suit cover 5 outside the outside of drag hook.At the rear portion of drag hook one pulling claw mouth is arranged, grasping has a pulling claw 8 in the mouth.One pulling claw positioning sleeve 7 is arranged between pulling claw and cylinder body.Have blind flange 9 at the cylinder body rear portion.There is a protective cover 6 outside of spring.Have blind rivet 12 in the inside of pulling claw.Hexagonal trip bolt 11 on the periphery of flange, having.Fuel feed hole 13 on the top of cylinder body has, bottom have following fuel feed hole 14.
Claims (1)
1. the automatic tensioning mechanism of annex head, it is characterized in that: a drag hook (4) is arranged in the inside of piston, have spring (10) in the centre of drag hook, one voussoir (3) is arranged between drag hook and piston, the certain position cover of suit (5) outside the outside of drag hook, grasping has a pulling claw (8) in the mouth, a pulling claw positioning sleeve (7) is arranged between pulling claw and cylinder body, there is a protective cover (6) outside of spring, has blind rivet (12) in the inside of pulling claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206303452U CN201940817U (en) | 2010-11-23 | 2010-11-23 | Automatic tensioning mechanism of accessory head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206303452U CN201940817U (en) | 2010-11-23 | 2010-11-23 | Automatic tensioning mechanism of accessory head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940817U true CN201940817U (en) | 2011-08-24 |
Family
ID=44468168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206303452U Expired - Lifetime CN201940817U (en) | 2010-11-23 | 2010-11-23 | Automatic tensioning mechanism of accessory head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940817U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806485A (en) * | 2012-08-08 | 2012-12-05 | 上海三一精机有限公司 | Accessory head tension device and machine tool |
| CN103267051A (en) * | 2013-06-03 | 2013-08-28 | 济南二机床集团有限公司 | Numerical control machine tool accessory head quick positioning connecting structure and method thereof |
| CN103481075A (en) * | 2013-09-23 | 2014-01-01 | 苏州江源精密机械有限公司 | Attachment head tensioning device |
| CN107838693A (en) * | 2016-09-18 | 2018-03-27 | 河源市鸿宇机械设备有限公司 | A kind of dual-axis rotation platform brake gear |
| CN109396876A (en) * | 2018-12-11 | 2019-03-01 | 中国航空制造技术研究院 | A kind of installation locating and clamping apparatus |
-
2010
- 2010-11-23 CN CN2010206303452U patent/CN201940817U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806485A (en) * | 2012-08-08 | 2012-12-05 | 上海三一精机有限公司 | Accessory head tension device and machine tool |
| CN102806485B (en) * | 2012-08-08 | 2014-10-29 | 上海三一精机有限公司 | accessory head tension device and machine tool |
| CN103267051A (en) * | 2013-06-03 | 2013-08-28 | 济南二机床集团有限公司 | Numerical control machine tool accessory head quick positioning connecting structure and method thereof |
| CN103481075A (en) * | 2013-09-23 | 2014-01-01 | 苏州江源精密机械有限公司 | Attachment head tensioning device |
| CN103481075B (en) * | 2013-09-23 | 2015-09-16 | 苏州江源精密机械有限公司 | A kind of attachment head tensioning device |
| CN107838693A (en) * | 2016-09-18 | 2018-03-27 | 河源市鸿宇机械设备有限公司 | A kind of dual-axis rotation platform brake gear |
| CN109396876A (en) * | 2018-12-11 | 2019-03-01 | 中国航空制造技术研究院 | A kind of installation locating and clamping apparatus |
| CN109396876B (en) * | 2018-12-11 | 2020-10-30 | 中国航空制造技术研究院 | Installation positioning clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |