CN102990415A - Pipe wall clamping fixture - Google Patents
Pipe wall clamping fixture Download PDFInfo
- Publication number
- CN102990415A CN102990415A CN 201210523094 CN201210523094A CN102990415A CN 102990415 A CN102990415 A CN 102990415A CN 201210523094 CN201210523094 CN 201210523094 CN 201210523094 A CN201210523094 A CN 201210523094A CN 102990415 A CN102990415 A CN 102990415A
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- CN
- China
- Prior art keywords
- expansion sleeve
- pull bar
- workpiece
- pipe wall
- wall 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.)
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Abstract
The invention discloses a pipe wall clamping fixture. The pipe wall clamping fixture comprises a base, an expansion sleeve for expanding workpieces and a push-pull rod which is connected with the base vertically and slidably, wherein the expansion end of the push-pull rod is of a tapered structure, the expansion sleeve is sleeved on the periphery of the push-pull rod, an inclined plane which is matched with the tapered structure is formed on the expansion sleeve, and the periphery of the expansion sleeve is a clamping part; and an elastic thin-wall section is arranged in the axial middle section of the expansion sleeve. The pipe wall clamping fixture utilizes an expansion block to clamp the inner parts of the workpieces.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind of tube wall clamping device.
Background technology
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 to be processed, and for the ease of the processing of lathe to workpiece, need to have the clamping device that clamps from inside workpiece to fix workpiece, because workpiece is various, need to design different clamping devices to different workpieces.
Summary of the invention
The technical problem to be solved in the present invention provides the tube wall clamping device that a kind of vertical direction compresses.
In order to solve the problems of the technologies described above, the invention provides a kind of tube wall clamping device, comprise support, be used for the expansion sleeve and the vertical pull bar that is slidingly connected with support of swelling workpiece, the tapered structure of swelling end of described pull bar, expansion sleeve is slidingly socketed in the pull bar periphery, expansion sleeve is provided with the inclined-plane that cooperates with described pyramidal structure, and the periphery of expansion sleeve is the clamping section; The axial stage casing of described expansion sleeve is provided with the elastic thin-wall section.
Described expansion sleeve is the tubular body that tube wall is provided with the radius variable of axially open.During clamping work pieces, drop-down pull bar is because the big up and small down pyramidal structure of swelling end of pull bar is pushed expansion sleeve to external expansion, the inner surface of workpiece pressing in the downdraw process; When unclamping workpiece, on push away the pull bar removal to the extruding force of expansion sleeve because bare terminal end and the thin segment between the stiff end of expansion sleeve has certain elastic-restoring force, expansion sleeve draws in, removal is to the extruding of workpiece.
As the further restriction of technical solution of the present invention, rotate in order to prevent workpiece, expansion sleeve is provided with thimble.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
As shown in Figure 1, the invention provides a kind of tube wall clamping device, comprise support 5, the expansion sleeve 2 that is used for swelling workpiece 1 and the pull bar 3 that is slidingly connected with support 5, the tapered structure of swelling end of described pull bar 3, expansion sleeve 2 is slidingly socketed in the pull bar periphery, and expansion sleeve 2 is provided with the inclined-plane that cooperates with described pyramidal structure, and expansion sleeve 2 moves horizontally, pull bar 3 is vertically mobile, and the periphery of expansion sleeve 2 is for clamping; Described support 5 is provided with for the fixing steady pin 6 of expansion sleeve 2; Be provided with thin segment 23 between described expansion sleeve 2 bare terminal ends and the stiff end 22.
During clamping work pieces 1, drop-down pull bar 3, because the big up and small down pyramidal structure of the swelling end 31 of pull bar 3, extruding expansion sleeve 2 outwards stretches the inner surface of workpiece pressing 1 in the downdraw process; When unclamping workpiece, on push away pull bar 3 removals to the extruding force of expansion sleeve 2 because the bare terminal end of expansion sleeve 2 has certain elastic-restoring force with the thin segment 23 between the stiff end 22, expansion sleeve 2 gatherings, removal is to the extruding of workpiece 1.The airway 6 of establishing on the expansion sleeve 2 is that the air pressure in order to ensure expansion sleeve 2 inner chambers equates with ambient pressure, prevents that the thin segment 23 of expansion sleeve 2 from deformation occuring, and restoring force follows the string.In order to prevent that workpiece from rotating, expansion sleeve 2 is provided with thimble 4.
Above-described only is preferred embodiment of the present invention, should be understood that for a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, these can not affect effect of the invention process and practical applicability.
Claims (2)
1. tube wall clamping device, it is characterized in that: comprise support, be used for the expansion sleeve and the vertical pull bar that is slidingly connected with support of swelling workpiece, the tapered structure of swelling end of described pull bar, expansion sleeve is slidingly socketed in the pull bar periphery, expansion sleeve is provided with the inclined-plane that cooperates with described pyramidal structure, and the periphery of expansion sleeve is the clamping section; The axial stage casing of described expansion sleeve is provided with the elastic thin-wall section.
2. tube wall clamping device according to claim 1, it is characterized in that: described expansion sleeve is provided with thimble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210523094 CN102990415A (en) | 2012-12-09 | 2012-12-09 | Pipe wall clamping fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210523094 CN102990415A (en) | 2012-12-09 | 2012-12-09 | Pipe wall clamping fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102990415A true CN102990415A (en) | 2013-03-27 |
Family
ID=47919812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210523094 Pending CN102990415A (en) | 2012-12-09 | 2012-12-09 | Pipe wall clamping fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990415A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817541A (en) * | 2014-02-23 | 2014-05-28 | 钟大德 | Fixture clamping structure |
| CN109465658A (en) * | 2018-11-23 | 2019-03-15 | 东莞市逻威机械设备有限公司 | A kind of the four or five axis automatic inner-support clamping device of numerically-controlled machine tool |
| CN109465657A (en) * | 2018-11-23 | 2019-03-15 | 东莞市逻威机械设备有限公司 | A kind of the four or five axis of numerically-controlled machine tool is automatically outer to support clamping device |
| CN109526272A (en) * | 2018-09-12 | 2019-03-29 | 吉林大学 | A kind of deep soil loosing shovel fast assembling-disassembling and adjustment device |
| CN113579278A (en) * | 2021-07-16 | 2021-11-02 | 浙江天马轴承集团有限公司 | Hydraulic jack catch for finish turning of bearing ring |
-
2012
- 2012-12-09 CN CN 201210523094 patent/CN102990415A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817541A (en) * | 2014-02-23 | 2014-05-28 | 钟大德 | Fixture clamping structure |
| CN109526272A (en) * | 2018-09-12 | 2019-03-29 | 吉林大学 | A kind of deep soil loosing shovel fast assembling-disassembling and adjustment device |
| CN109465658A (en) * | 2018-11-23 | 2019-03-15 | 东莞市逻威机械设备有限公司 | A kind of the four or five axis automatic inner-support clamping device of numerically-controlled machine tool |
| CN109465657A (en) * | 2018-11-23 | 2019-03-15 | 东莞市逻威机械设备有限公司 | A kind of the four or five axis of numerically-controlled machine tool is automatically outer to support clamping device |
| CN113579278A (en) * | 2021-07-16 | 2021-11-02 | 浙江天马轴承集团有限公司 | Hydraulic jack catch for finish turning of bearing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |