CN2315347Y - Coupling device for digit control spark forming machine tool - Google Patents
Coupling device for digit control spark forming machine tool Download PDFInfo
- Publication number
- CN2315347Y CN2315347Y CN 96201767 CN96201767U CN2315347Y CN 2315347 Y CN2315347 Y CN 2315347Y CN 96201767 CN96201767 CN 96201767 CN 96201767 U CN96201767 U CN 96201767U CN 2315347 Y CN2315347 Y CN 2315347Y
- Authority
- CN
- China
- Prior art keywords
- coupling
- lead screw
- screw shaft
- motor shaft
- gland
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a coupling. The coupling cover 15 thereof is sheathed on the connecting point between a motor shaft 10 and a threaded spindle 11. One side of the motor shaft 10 and one side of the threaded spindle 11 are provided with pressing covers 13 and expansion rings 14. The pressing covers 13 and expansion rings 14 are is respectively provided with a screw hole and a spiral buckle, and the middle parts match with fastening bolts 12. The expansion ring 14 is two sleeve rings which are matched together and are provided with wedge-shaped thin walls. The fastening bolt 12 is screwed for causing the wedge opening to engage. The coupling has simple structure, eliminates the disadvantages of connection and fixation of the traditional coupling, and improves the precision of a machine and the retentivity of precision. The manufacturing cost of the machine can be reduced under the same accuracy.
Description
The utility model relates to a kind of numerical control electric spark forming machine tool coupling, the particularly coupling of straight connection type between its motor reel and lead screw shaft.
At numerical control electric spark forming machine tool X, Y, three machine directions of Z, three dragging systems are independently separately arranged, the motor reel of its dragging system and drag the connection of lead screw shaft need be realized by coupling.In high-precision transmission, coupling band and motor reel, drag lead screw shaft between fixing, for satisfying certain precision, particular importance just seems.Usually fixing between them is that the structure of taking key connecting, pin connection and jackscrew to connect is fixed.But key connecting, cooperating of coupling band and key be difficult to guarantee, is difficult for assembling during no gap; Can produce driving error when gapped.The long-time use is easy to generate bigger gap between coupling band and the key, driving error can be bigger.Pin connects, is difficult to guarantee large-area the contact between coupling band and the pin, and usually be the contact of point or line, wear and tear easily and produce the gap, reduce transmission accuracy.Jackscrew connects, and during transmission, is easy to produce and becomes flexible, and reduces transmission accuracy.
The purpose of this utility model is, a kind of numerical control electric spark forming machine tool coupling is provided, the coupling of straight connection type between its motor reel and lead screw shaft particularly, overcome the easy generation gap that general connecting structure such as pin connect and the jackscrew connection is brought, reduce shortcomings such as precision, improve transmission accuracy, reduce production costs.
The utility model is that the structure by following design realizes that this coupling is to be made of clamping bolt 12, gland 13, expanding ring 14, coupling band 15.The thin-walled of expanding ring 14 is wedge types, and gland 13 makes expanding ring 14 produce deformation by clamping bolt 12, and the inwall of expanding ring 14 is banding motor shaft 1 and lead screw shaft 2 tightly, and external diameter is stretching coupling band 15 tightly then, realizes the transmission of accurate moment of torsion.
The utility model has following advantage compared with the prior art:
1. simple in structure.
2. eliminated owing to the connection of traditional coupling and fastening shortcoming, improved the precision and the precision stability of lathe.
3. reduced the lathe manufacture cost.
Evidence can reach the purpose of design fully.
The utility model has following accompanying drawing:
Fig. 1 is the coupling schematic representation of straight connection type between the utility model numerical control electric spark forming machine tool motor reel and lead screw shaft.
Each parts is among the figure: motor shaft 10, lead screw shaft 11, clamping bolt 12, gland 13, expanding ring 14 and coupling band 15.
Fig. 2 is expanding ring 14 schematic representation.
Contrast accompanying drawing now, the utility model is described further (seeing Fig. 1 Fig. 2): coupling band 15 is enclosed within the joining place of motor shaft 10 and lead screw shaft 11, all be furnished with gland 13 and expanding ring 14 on one side of motor shaft 10 and one side of lead screw shaft 11, gland 13 expanding ring 14 are annular, are enclosed within the outside of motor shaft 10 and lead screw shaft 11 separately.Gland 13 and coupling band 15 have screw and spiral shell button separately respectively, are furnished with clamping bolt 12 in the middle of it; Expanding ring 14 is two thin-walled collars that have wedge type that match.The precession of clamping bolt 12 then promotes its wedge mouth and stings tightly.
Claims (1)
1. the coupling of straight connection type between numerical control electric spark forming machine tool motor reel and lead screw shaft, this coupling be enclosed within motor shaft (10) and lead screw shaft (11) above, coupling is by clamping bolt (12), gland (13), expanding ring (14), coupling band (15) constitutes, the feature of this coupling is: coupling band (15) is enclosed within the joining place of motor shaft (10) and lead screw shaft (11), all be furnished with gland (13) and expanding ring (14) on one side of motor shaft (10) and one side of lead screw shaft (11), gland (13) expanding ring (14) is annular, is enclosed within the outside of motor shaft (10) and lead screw shaft (11) separately; Gland (13) and coupling band (15) have screw and spiral shell button separately respectively, are furnished with clamping bolt (12) in the middle of it; Expanding ring (14) is two thin-walled collars that have wedge type that match; The precession of clamping bolt (12) then promotes its wedge mouth and stings tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96201767 CN2315347Y (en) | 1996-01-26 | 1996-01-26 | Coupling device for digit control spark forming machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96201767 CN2315347Y (en) | 1996-01-26 | 1996-01-26 | Coupling device for digit control spark forming machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2315347Y true CN2315347Y (en) | 1999-04-21 |
Family
ID=33887957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96201767 Expired - Fee Related CN2315347Y (en) | 1996-01-26 | 1996-01-26 | Coupling device for digit control spark forming machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2315347Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588453A (en) * | 2012-03-21 | 2012-07-18 | 中国航空动力机械研究所 | Shaft transmission gear |
-
1996
- 1996-01-26 CN CN 96201767 patent/CN2315347Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588453A (en) * | 2012-03-21 | 2012-07-18 | 中国航空动力机械研究所 | Shaft transmission gear |
| CN102588453B (en) * | 2012-03-21 | 2014-11-05 | 中国航空动力机械研究所 | Shaft transmission gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |