CN205184374U - Main shaft broach booster - Google Patents
Main shaft broach booster Download PDFInfo
- Publication number
- CN205184374U CN205184374U CN201521011420.6U CN201521011420U CN205184374U CN 205184374 U CN205184374 U CN 205184374U CN 201521011420 U CN201521011420 U CN 201521011420U CN 205184374 U CN205184374 U CN 205184374U
- Authority
- CN
- China
- Prior art keywords
- nut
- rack sleeve
- disc spring
- butterfly spring
- pull bar
- 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
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a main shaft broach booster, including rack sleeve, pull rod and nut, its characterized in that is equipped with movable nut, big disc spring and little disc spring, in the pull rod front portion penetrated the rack sleeve, centre bore and the movable nut threaded connection who fixes the nut on the rack sleeve was passed at the rear portion, movable nut cup joints with the nut activity, be equipped with the reinforcement cavity between movable nut and nut, the cover is equipped with big disc spring on the pull rod in the rack sleeve, the cover is equipped with little disc spring on the pull rod in the reinforcement cavity, little disc spring one end is inconsistent with the nut, and the other end is inconsistent with movable nut, by adopting the above structure, the utility model, have advantages such as novel structure, simple to operate, pretightning force are big, pulling force multiplication, the easy control of decrement.
Description
Technical field
The utility model relates to machine tool technology field, specifically a kind of main spindle broach step-up system.
Background technology
At present, the tool-broaching mechanism of heavy type numerical control boring and milling machine boring and milling main shaft all adopts disc spring to strain, the version that hydraulic pressure loosens, require that disc spring is in boring and milling main shaft, be reserved with several tons of tightening forces, lay at the core of boring and milling main shaft, the large young pathbreaker of this tightening force directly affects lathe in the ability of use procedure and efficiency, and this requires by controlling disc spring decrement and active length realizes.And disc spring is arranged on the core of boring and milling main shaft, its installing space is little, and pretension is large, and inconvenience is installed, and decrement not easily accurately controls.For this difficult problem, CN2014101557262 discloses a kind of heavy type numerical control boring and milling machine main spindle broach disc spring preassembling device, and this device comprises cylindrical shell, connects an end cap on the right side of cylindrical shell with screw, after mandrel loads piston rod by screw thread, together loads in cylindrical shell; Successively disc spring right-hand member pad, disc spring group, disc spring left end pad, spacer are loaded in cylindrical shell; One right end plate is set on the right side of end cap, a first member plate is set on the left of spacer, construction bolt and nut on first member plate.Utilization which solves main spindle broach in heavy type numerical control boring and milling machine core component main spindle box
The precision of disc spring installs key issue, but also exists following not enough: unreasonable structure, because inner hole of spindle size can not be enough large; Disk spring for straining cutter is small-sized, does not reach the power required for main spindle broach.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provides a kind of novel structure, easy for installation, pretightning force large, pulling force doubles, decrement holds manageable main spindle broach step-up system.
The utility model solves the technical scheme that its technical problem adopts:
A kind of main spindle broach step-up system, comprise rack sleeve, pull bar and nut, it is characterized in that being provided with traveling nut, large butterfly spring and little butterfly spring, described pull bar front portion penetrates in rack sleeve, rear portion is threaded with traveling nut through the centre bore of the nut be fixed on rack sleeve, described traveling nut and nut pivot bush unit, reinforcement cavity is provided with between described traveling nut and nut, pull bar in described rack sleeve is arranged with large butterfly spring, pull bar in described reinforcement cavity is arranged with little butterfly spring, described little butterfly spring one end and nut inconsistent, the other end and traveling nut inconsistent, be beneficial to when main shaft dress cutter, large butterfly spring and little butterfly spring is compressed while the movement of pull bar forward end, reach the effect increasing pulling force.
The utility model owing to adopting said structure, the advantage such as have that novel structure, easy for installation, pretightning force are large, pulling force multiplication, decrement easily control.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference numeral: rack sleeve 1, pull bar 2, nut 3, traveling nut 4, large butterfly spring 5, little butterfly spring 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated:
As shown in drawings, a kind of main spindle broach step-up system, comprise rack sleeve 1, pull bar 2 and nut 3, it is characterized in that being provided with traveling nut 4, large butterfly spring 5 and little butterfly spring 6, described pull bar 2 front portion penetrates in rack sleeve 1, rear portion is threaded with traveling nut 4 through the centre bore of the nut 3 be fixed on rack sleeve 1, described traveling nut 4 and nut 3 pivot bush unit, reinforcement cavity is provided with between described traveling nut 4 and nut 3, pull bar 2 in described rack sleeve 1 is arranged with large butterfly spring 5, pull bar 2 in described reinforcement cavity is arranged with little butterfly spring 6, described little butterfly spring 6 one end and nut 3 inconsistent, the other end and traveling nut 4 inconsistent, to reach the effect increasing pulling force.
The utility model, when main shaft dress cutter, compresses large butterfly spring 5 and little butterfly spring 6 while the movement of pull bar 2 forward end, reaches the effect increasing broaching tool pulling force.
The utility model owing to adopting said structure, the advantage such as have that novel structure, easy for installation, pretightning force are large, pulling force multiplication, decrement easily control.
Claims (1)
1. a main spindle broach step-up system, comprise rack sleeve, pull bar and nut, it is characterized in that being provided with traveling nut, large butterfly spring and little butterfly spring, described pull bar front portion penetrates in rack sleeve, rear portion is threaded with traveling nut through the centre bore of the nut be fixed on rack sleeve, described traveling nut and nut pivot bush unit, reinforcement cavity is provided with between described traveling nut and nut, pull bar in described rack sleeve is arranged with large butterfly spring, pull bar in described reinforcement cavity is arranged with little butterfly spring, described little butterfly spring one end and nut inconsistent, the other end and traveling nut inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011420.6U CN205184374U (en) | 2015-12-08 | 2015-12-08 | Main shaft broach booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011420.6U CN205184374U (en) | 2015-12-08 | 2015-12-08 | Main shaft broach booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205184374U true CN205184374U (en) | 2016-04-27 |
Family
ID=55777405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521011420.6U Expired - Fee Related CN205184374U (en) | 2015-12-08 | 2015-12-08 | Main shaft broach booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205184374U (en) |
-
2015
- 2015-12-08 CN CN201521011420.6U patent/CN205184374U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20181208 |