CN203171272U - Spiral transmission centering fastening device - Google Patents
Spiral transmission centering fastening device Download PDFInfo
- Publication number
- CN203171272U CN203171272U CN 201220671511 CN201220671511U CN203171272U CN 203171272 U CN203171272 U CN 203171272U CN 201220671511 CN201220671511 CN 201220671511 CN 201220671511 U CN201220671511 U CN 201220671511U CN 203171272 U CN203171272 U CN 203171272U
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- CN
- China
- Prior art keywords
- bolt
- fastening device
- spiral transmission
- jaws
- workpiece
- 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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Abstract
The utility model discloses a spiral transmission centering fastening device, and relates to a centering fastening device. The spiral transmission centering fastening device comprises a base, a bolt, two clamping claws and limiting bolts, wherein each clamping claw is provided with a concave groove, each clamping claw is provided with two oval grooves, the limiting bolts penetrate through the oval grooves and are fixed on the base, the two clamping claws are in threaded connection with the bolt, and the bolt is provided with a left thread and a right thread. The spiral transmission centering fastening device overcomes the defects that the structure is complex, and a workpiece is difficult to center and fasten and can not be clamped firmly, and improves efficiency.
Description
Technical field
The utility model relates to centering and steps up the device technique field, and particularly a kind of worm drive centering steps up device.
Background technology
Centering and clamping apparatus a large amount of use in machining at present, clamping device is that the workpiece of having good positioning is fixed on the setting element in whole process reliably, and the mechanism that changes of occurrence positions not.When clamping work pieces, do not allow to destroy the location of workpiece, and enough rigidity should be arranged, guarantee necessary clamping force, but should not damage the workpiece machined surface or make workpiece produce distortion, thereby guarantee machining accuracy.Because the outer surface of most of workpiece need be processed, for the ease of the processing of lathe to workpiece, present clamping device complex structure, and operation is comparatively inconvenient, be difficult to the workpiece clamping of feeling relieved, or centering clamp firm inadequately, the poor effect that its centering is clamped, greatly reduce working (machining) efficiency, bigger influence is played in production.
The utility model content
It is a kind of simple in structure that the utility model provides, to the worm drive centering and clamping apparatus of firm workpiece clamping.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme: a kind of worm drive centering steps up device, comprise pedestal, bolt, two jaws, caging bolt, described two jaws are provided with groove,, also offering two elliptical slots on two jaws respectively, described caging bolt passes elliptical slot and is fixed on the pedestal, two jaws are connected with bolt thread, and described bolt is provided with and two corresponding left-hand threads of jaw and right-hand thread.
Beneficial effect: the utility model is simple in structure, drives two jaws by bolt and draws in to the center simultaneously, and workpiece clamp is fastened between two jaws, to firm workpiece clamping, has improved operating efficiency.
Description of drawings
Fig. 1 is the schematic diagram that the utility model worm drive centering steps up device embodiment.
The specific embodiment
As shown in Figure 1, a kind of worm drive centering and clamping apparatus of the utility model, comprise pedestal, bolt 2, left side jaw 5, right jaw 6, caging bolt 7, left side jaw 5 and right jaw 6 are respectively equipped with groove, left side jaw 5, offer two elliptical slots 8 respectively on the right jaw 6, caging bolt 7 passes elliptical slot 8 and is fixed on the pedestal, the effect of elliptical slot 8 is in two jaws in location, make two jaws can produce displacement again, left side jaw 5, right jaw 6 is threaded with bolt 2, workpiece is placed between left jaw 5 and the right jaw 6, when beginning the bolt 2 that turns clockwise, because bolt 2 is provided with left-hand thread 4 and right-hand thread 3, it is right moving to moving that bolt 2 drives left jaw 5 respectively, right jaw 6 is moved to the left, till workpiece 9 is clamped; If when taking off workpiece 9, then be rotated counterclockwise bolt and get final product.
Above-described only is preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (1)
1. a worm drive centering steps up device, comprise pedestal, bolt, two jaws, caging bolt, it is characterized in that: described two jaws are provided with groove, also offer two elliptical slots on two jaws respectively, described caging bolt passes elliptical slot and is fixed on the pedestal, and two jaws are connected with bolt thread, and described bolt is provided with and two corresponding left-hand threads of jaw and right-hand thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671511 CN203171272U (en) | 2012-12-09 | 2012-12-09 | Spiral transmission centering fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671511 CN203171272U (en) | 2012-12-09 | 2012-12-09 | Spiral transmission centering fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171272U true CN203171272U (en) | 2013-09-04 |
Family
ID=49068025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220671511 Expired - Fee Related CN203171272U (en) | 2012-12-09 | 2012-12-09 | Spiral transmission centering fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769900A (en) * | 2014-02-23 | 2014-05-07 | 张鸿来 | Flexible self-centering fixture |
| CN104070384A (en) * | 2014-06-10 | 2014-10-01 | 苏州创丰精密五金有限公司 | Milling machine fixture |
-
2012
- 2012-12-09 CN CN 201220671511 patent/CN203171272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769900A (en) * | 2014-02-23 | 2014-05-07 | 张鸿来 | Flexible self-centering fixture |
| CN104070384A (en) * | 2014-06-10 | 2014-10-01 | 苏州创丰精密五金有限公司 | Milling machine fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20131209 |