CN202726586U - Self aligning elastic clamping mechanism - Google Patents
Self aligning elastic clamping mechanism Download PDFInfo
- Publication number
- CN202726586U CN202726586U CN 201220401032 CN201220401032U CN202726586U CN 202726586 U CN202726586 U CN 202726586U CN 201220401032 CN201220401032 CN 201220401032 CN 201220401032 U CN201220401032 U CN 201220401032U CN 202726586 U CN202726586 U CN 202726586U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- regulating sleeve
- collet
- clamping mechanism
- elastic clamping
- 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
A self aligning elastic clamping mechanism comprises a regulating sleeve, a main shaft, an elastic clamp head and a workpiece, wherein the regulating sleeve is located according to an inner hole and an end surface of the main shaft and is connected with the main shaft through four screws. The elastic clamp head is installed in a hole of the regulating sleeve, and an outer conical surface and an outer cylindrical surface of the elastic clamp head are respectively matched with an inner taper hole and an inner cylindrical surface of the regulating sleeve. The workpiece is axially located according to a locating rod and is installed in an inner hole of the elastic clamp head. A draw bar is connected between the elastic clamp head and the front end of the locating rod. A main shaft sleeve is fixed outside the main shaft. The self aligning elastic clamping mechanism has the advantages that the structure is simple and reliable, the manufacture cost is low, eccentricity is near zero error, and accuracy is high.
Description
Technical field
The utility model relates to a kind of elastic clamping mechanism of the adjusting center of using for the clamping workpiece of machining.
Background technology
Collet is the machine tool accessories that utilizes the strain of jaw to make workpiece or cutter centering and clamp, and is multiplex in efficient automatic machine tool.The head of chuck male cone (strobilus masculinus) has the elongated slot of some five equilibriums vertically, with form can centripetal elastic shrinkage jaw.The male cone (strobilus masculinus) of collet matches with the internal taper hole of main shaft, and afterbody is threaded and links to each other with pull bar.When the pull bar post-tensioning, chuck produces and moves axially, so the outer cone pressurized evenly shrinks jaw, realizes centering and the clamping of workpiece or cutter.During Workpiece clamping, because the foozle of inner cone hole of main shaft and chuck, workpiece has larger coaxiality error with respect to main shaft, namely clamps eccentric.During the general smooth bar that clamps 5～10 millimeters of diameters, it is 0.02～0.04 millimeter apart from the offset at 25 millimeters places of chuck end face.
Summary of the invention
The utility model purpose is to overcome the problem of above-mentioned existence, and a kind of elastic clamping mechanism of adjusting center of simple and reliable for structure, low cost of manufacture is provided.
The purpose of this utility model is finished by following technical solution, comprises regulating sleeve, main shaft, collet, workpiece, and described regulating sleeve is located with inner hole of spindle and end face, and connects with main shaft with four screws; Described collet is loaded in the hole of regulating sleeve, and the male cone (strobilus masculinus) of collet and external cylindrical surface match with internal taper hole and the inner cylinder face of regulating sleeve respectively; Described workpiece is made axial location with backstay, is installed in the endoporus of collet, is connected with pull bar at the front end of this collet and backstay, and main shaft is fixed with main shaft sleeve outward.
As preferably, be screwed with the adjustment screw on the described regulating sleeve, this top of adjusting screw contacts with the outer wall of main shaft.
As preferably, described being provided with at regulating sleeve limited the stop pin that collet rotates.
The beneficial effects of the utility model are: have simple and reliable for structure, low cost of manufacture, offset is almost 0 error, the characteristics that precision is high.
Description of drawings
Fig. 1 is side-looking structural representation of the present utility model.
Fig. 2 is that master of the present utility model looks cross-sectional view.
Fig. 3 is regulating sleeve cross-sectional view of the present utility model.
Label in the accompanying drawing is respectively: 1, regulating sleeve, 2, main shaft, 3, collet, 4, workpiece, 5, screw, 6, backstay, 7, pull bar, 8, main shaft sleeve, 9, adjust screw, 10, stop pin, 11, the elastic deformation area.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed introduction: such as Fig. 1, shown in 2, regulating sleeve 1 is with main shaft 2 endoporus and end face location, and connect with main shaft 2 with four screws 5, collet 3 is loaded in the hole of regulating sleeve 1, the male cone (strobilus masculinus) of collet 3 and external cylindrical surface match with internal taper hole and the inner cylinder face of regulating sleeve 1 respectively, workpiece 4 is made axial location with backstay 6, be installed in collet 3 endoporus, turn left and strain pull bar 7, collet 3 clamping work pieces 4, check the offset of workpiece with meter, direction according to off-centre, one or two adjusts screw 9 to tighten the relevant position, elastic deformation area 11(such as Fig. 3 of four screws 5 and regulating sleeve 1) will produce the strain of trace, cause the internal taper hole of regulating sleeve 1 to produce small radial displacement, offset can be adjusted to than fractional value thus, generally can reach within 0.005 millimeter.Because stop pin 10 has limited the rotation of collet 3, the position of matching with the internal taper hole of regulating sleeve 1 during collet 3 each the clamping can not change, so after the offset adjusting finishes, offset will can not change.
In addition to the implementation, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. the elastic clamping mechanism of an adjusting center, comprise regulating sleeve (1), main shaft (2), collet (3), workpiece (4), it is characterized in that: described regulating sleeve (1) is located with main shaft (2) endoporus and end face, and connects with main shaft (2) with four screws (5); Described collet (3) is loaded in the hole of regulating sleeve (1), and the male cone (strobilus masculinus) of collet (3) and external cylindrical surface match with internal taper hole and the inner cylinder face of regulating sleeve (1) respectively; Described workpiece (4) is made axial location with backstay (6), is installed in the endoporus of collet (3), is connected with pull bar (7), the outer main shaft sleeve (8) that is fixed with of main shaft (2) at the front end of this collet (3) and backstay (6).
2. the elastic clamping mechanism of adjusting center according to claim 1 is characterized in that: be screwed with on the described regulating sleeve (1) and adjust screw (9), this top of adjusting screw (9) contacts with the outer wall of main shaft (2).
3. the elastic clamping mechanism of adjusting center according to claim 1 is characterized in that: the described stop pin (10) that has limited collet (3) rotation that is provided with at regulating sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401032 CN202726586U (en) | 2012-08-14 | 2012-08-14 | Self aligning elastic clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401032 CN202726586U (en) | 2012-08-14 | 2012-08-14 | Self aligning elastic clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202726586U true CN202726586U (en) | 2013-02-13 |
Family
ID=47652334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220401032 Expired - Fee Related CN202726586U (en) | 2012-08-14 | 2012-08-14 | Self aligning elastic clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202726586U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191295A (en) * | 2014-09-10 | 2014-12-10 | 芜湖市甬微制冷配件制造有限公司 | Lathe chuck |
| CN106926132A (en) * | 2017-04-11 | 2017-07-07 | 台州北平机床有限公司 | Adjustable clamp |
| TWI701093B (en) * | 2016-02-08 | 2020-08-11 | 日商北川鐵工所股份有限公司 | Retracting chuck |
-
2012
- 2012-08-14 CN CN 201220401032 patent/CN202726586U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191295A (en) * | 2014-09-10 | 2014-12-10 | 芜湖市甬微制冷配件制造有限公司 | Lathe chuck |
| TWI701093B (en) * | 2016-02-08 | 2020-08-11 | 日商北川鐵工所股份有限公司 | Retracting chuck |
| CN106926132A (en) * | 2017-04-11 | 2017-07-07 | 台州北平机床有限公司 | Adjustable clamp |
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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 |
Granted publication date: 20130213 Termination date: 20170814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |