CN113828816A - Slender pipe clamping chuck - Google Patents
Slender pipe clamping chuck Download PDFInfo
- Publication number
- CN113828816A CN113828816A CN202111243506.1A CN202111243506A CN113828816A CN 113828816 A CN113828816 A CN 113828816A CN 202111243506 A CN202111243506 A CN 202111243506A CN 113828816 A CN113828816 A CN 113828816A
- Authority
- CN
- China
- Prior art keywords
- elongated tube
- jaws
- guide hole
- base
- guide
- 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.)
- Pending
Links
- 238000003754 machining Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 2
- 210000000078 claw Anatomy 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/102—Jaws, accessories or adjustment means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a slender tube clamping chuck, which is characterized by comprising: a base having a guide hole formed therein; and a clamping member including a plurality of clamping jaws surrounding the guide hole, at least some of the clamping jaws having a first state moving relative to the base to approach or separate from the guide hole and a second state fixed relative to the base, and each clamping jaw having an extension extending axially along the guide hole. The elongated tube penetrates through the guide hole, so that the clamping jaw can clamp the middle part of the elongated tube, and compared with the clamping end part of the elongated tube, the length of a force arm of the elongated tube in the shaking process can be effectively reduced, and the vibration amplitude of the elongated tube in the processing process is weakened. In addition, the contact area between the claw and the elongated tube is increased by the extension part of the claw, so that the claw can stably clamp the elongated tube, and the vibration amplitude of the elongated tube in the processing process is further reduced. The problem that the processing quality of the slender pipe is seriously influenced due to overlarge amplitude is avoided.
Description
Technical Field
The invention relates to the field of pipe processing, in particular to a slender pipe clamping chuck.
Background
In the field of pipe processing, a chuck is generally used for clamping and fixing a pipe so as to process the pipe.
The specific structure of the chuck can be seen in patent application No. CN201780058861.7, which uses a plurality of jaws to clamp and fix a pipe, so as to facilitate the processing of the pipe by the processing equipment. One end of the pipe is typically gripped by such chucks, while the other end of the pipe is machined by the machining equipment. Conventional chucks have significant drawbacks when holding elongated tubes. On one hand, the chuck clamps the end part of the slender pipe, so that the arm of force of the clamped slender pipe is too large and the slender pipe is easy to swing. On the other hand, the contact area between the jaws and the elongated tube is too small due to the small diameter of the elongated tube. Meanwhile, in order to avoid clamping the slender pipe, the pressure applied by the clamping jaws on the slender pipe cannot be too large. In conclusion, the conventional claws are difficult to stably clamp the slender pipe, and the processing of the slender pipe is influenced.
Therefore, how to stably clamp the slender tube is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a slender tube clamping chuck, which solves the technical problem that the chuck in the prior art cannot stably clamp a slender tube.
In order to achieve the above technical object, an aspect of the present invention provides an elongated tube holding chuck, including:
a base having a guide hole formed therein;
a clamping member including a plurality of jaws surrounding the guide hole, at least some of the jaws having a first state moving relative to the base to approach or separate from the guide hole and a second state fixed relative to the base, and each of the jaws having an extension extending axially along the guide hole.
Furthermore, the base is provided with a guide rail, and the clamping jaws are provided with guide grooves matched with the guide rail.
Furthermore, a screw hole is formed in the guide rail, a matching hole is formed in the clamping jaw, and a bolt is inserted into the matching hole and the screw hole, so that the guide rail can be fixed relative to the base.
Further, the base includes base body and connecting strip, the mounting groove has been seted up on the base body, connecting strip detachable inlays to be located the mounting groove, just the guide rail is located on the connecting strip.
Further, the mounting groove cross-section is the T style of calligraphy, the connecting strip is transversal to be the T style of calligraphy in order to laminate the mounting groove inner wall.
Furthermore, the clamping piece also comprises at least one hydraulic cylinder, the hydraulic cylinders are arranged along the radial direction of the guide hole, and the output end of each hydraulic cylinder is provided with one clamping jaw so as to drive the clamping jaw to be close to or far away from the guide hole.
Furthermore, one end, close to the guide hole, of the clamping jaw is provided with a guide wheel, and the axis of the guide hole of the guide wheel is the axis.
Furthermore, a concave surface is formed at one end of the clamping jaw close to the guide hole.
A pipe machining apparatus loaded with the chuck as claimed in any one of claims 1 to 8.
Further, the pipe machining equipment is loaded with a plurality of the chucks, and the plurality of the chucks are coaxially arranged.
Compared with the prior art, the invention has the beneficial effects that: the base is fixed on the reliable connecting surface, then the clamping jaws capable of sliding relative to the base are switched to the first state, the clamping jaws are far away from the guide hole, and the distance between the clamping jaws is enlarged. Then the slender pipe to be clamped penetrates through the guide hole, the clamping jaws capable of sliding are close to the guide hole, the distance between the clamping jaws enables the clamping jaws to clamp the slender pipe, and the clamping jaws are switched to a second state to fix the slender pipe. And each clamping jaw is provided with an extension part which extends along the axial direction of the guide hole, so that the contact area between the clamping jaw and the elongated tube is increased. By using the chuck provided by the invention, on one hand, the middle part of the slender tube can be clamped, and compared with the clamping of the end part of the slender tube, the length of the force arm of the slender tube in the shaking process can be effectively reduced, so that the vibration amplitude of the slender tube in the processing process is reduced. In addition, the contact area between the claw and the elongated tube is increased by the extension part of the claw, so that the claw can stably clamp the elongated tube, and the vibration amplitude of the elongated tube in the processing process is further reduced. The problem that the processing quality of the slender pipe is seriously influenced due to overlarge amplitude is avoided.
Drawings
FIG. 1 is a schematic structural view of an elongated tube holding chuck according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of an elongated tube holding chuck according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the jaws and connecting strips of an elongated tube holding chuck in accordance with an embodiment of the present invention;
figure 4 is a front view of an elongate tube holding chuck according to another embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides an elongated tube holding chuck, which can be seen in fig. 1 and 2, and includes: a base 100 and a clamp 200. The base 100 is formed with a guide hole 111 for the elongated tube to pass through, and the holder 200 includes a plurality of jaws 210 surrounding the guide hole 111, so that the plurality of jaws 210 can be circumferentially distributed around the elongated tube. It can be understood that the plurality of claws 210 are used for clamping and fixing the elongated tube, so that the relative position between the claws 210 needs to be changed, when the distance between the claws 210 is reduced, the claws 210 clamp and press the elongated tube to fix the elongated tube, and the distance between the claws 210 is enlarged, so that the elongated tube has enough moving space to take and place the elongated tube.
In order to change the distance between the jaws 210, it is necessary to make at least some of the jaws 210 have a first state of sliding relative to the base 100 to be close to or far from the guide hole 111 and a second state of being fixed relative to the base 100, and it is understood that only one of the jaws 210 capable of sliding relative to the base 100 may be provided, or all of the jaws 210 may be capable of sliding relative to the base 100, and the specific structure thereof may be adjusted according to the actual application environment. In addition, each of the jaws 210 has an extension extending axially along the guide hole 111, and the extension contacts with the clamped elongated tube, increasing the length ratio of the clamped portion of the elongated tube by the jaws 210, and further increasing the contact area between the jaws 210 and the elongated tube, so that the elongated tube can be clamped by the jaws 210 more stably.
The base 100 is first fixed to the secured connection surface and then the jaws 210, which are slidable relative to the base 100, are switched to the first state and the part of the jaws 210 is moved away from the guide hole 111 to enlarge the space between the respective jaws 210. Then, the elongated tube to be clamped penetrates through the guide hole 111, and then the slidable claws 210 are close to the guide hole 111, so that the claws 210 clamp the elongated tube at the intervals between the claws 210, and the claws 210 are switched to a second state to fix the elongated tube. While each jaw 210 has an extension extending axially along the guide hole 111, increasing the contact area between the jaw 210 and the elongated tube. By using the chuck provided by the invention, on one hand, the middle part of the slender tube can be clamped, and compared with the clamping of the end part of the slender tube, the length of the force arm of the slender tube in the shaking process can be effectively reduced, so that the vibration amplitude of the slender tube in the processing process is reduced. In addition, the contact area between the jaws 210 and the elongated tube is increased due to the extension of the jaws 210, so that the jaws 210 can clamp the elongated tube more stably, and the vibration amplitude of the elongated tube during the processing process is further reduced. The problem that the processing quality of the slender pipe is seriously influenced due to overlarge amplitude is avoided.
As long as the sliding form of the claw 210 relative to the base 100 is feasible, in a preferred embodiment, referring to fig. 2 and 3, the base 100 has a guide rail 121, the guide rail 121 is disposed along the axis of the guide hole 111, the claw 210 has a guide groove 211, and the guide groove 211 is sleeved on the guide rail 121, so that the claw 210 is slidably disposed on the guide rail 121. It should be noted that the number of the guide rails 121 is the same as the number of the slidable jaws 210, so that the plurality of slidable jaws 210 are correspondingly mounted on the plurality of guide rails 121.
On the basis of the above embodiment, in order to fix the clamping jaw 210 relative to the base 100, the guide rail 121 is provided with a screw hole 121a, the clamping jaw 210 is provided with a matching hole 212, the matching hole 212 and the screw hole 121a are connected through a bolt, so that the clamping jaw 210 can be fixed relative to the base 100, and the bolt can be detached to enable the clamping jaw 210 to slide relative to the base 100. It will be appreciated that any form of fixing the jaws 210 relative to the base 100 is possible, and any form of coupling may be used to couple the jaws 210 and the base 100, respectively, with reference to the principle of a bolt connection, i.e. the jaws 210 are constrained from sliding relative to the base 100.
Considering that elongated tubes with different sizes are clamped, the claws 210 with different sizes are needed, and correspondingly, the guide rails 121 matched with the claws 210 with different sizes are needed. The base 100 comprises a base body 110 and a connecting strip 120, wherein the base body 110 is provided with a mounting groove 112, the connecting strip 120 is detachably embedded in the mounting groove 112, and the guide rail is located on the connecting strip 120. Therefore, when the clamping jaws 210 with different specifications need to be loaded, different connecting strips 120 can be replaced, so that the guide rails 121 and the clamping jaws 210 are matched.
In a preferred embodiment, the mounting groove 112 has a T-shaped cross section, and the connecting bar 120 has a T-shaped cross section to fit the inner wall of the mounting groove 112. Because the cross sections of the mounting groove 112 and the connecting bar 120 are both in a T shape, the connecting bar 120 can be stably embedded in the mounting groove 112, and the connecting bar 120 is prevented from being separated from the mounting groove 112.
The embodiment of the jaws 210 is not exclusive and in an alternative embodiment, as can be seen in fig. 4, the clamp 200 further comprises at least one hydraulic cylinder 220, the hydraulic cylinders 220 being arranged radially of the guide hole 111, the output end of each hydraulic cylinder 220 being provided with one jaw 210 for driving the jaw 210 closer to or further away from the guide hole 111. It is understood that the hydraulic cylinder 220 used in this embodiment is a conventional linear hydraulic cylinder, and the radial arrangement of the hydraulic cylinder 220 is only the optimal arrangement of the linear hydraulic cylinder, and if there is an included angle between the arrangement direction of the hydraulic cylinder and the inner diameter of the guide hole 111, the hydraulic cylinder still can function to make the clamping jaws 210 close to or far away from the guide hole 111, and still can perform the function of making the clamping jaws 210 clamp the elongated tube. It is easily conceivable that, in case the hydraulic cylinder 220 is a rotary hydraulic cylinder, it is only necessary to adopt an appropriate arrangement so that the rotary hydraulic cylinder can drive the jaw 210 closer to or farther from the guide hole 111. The requirement of holding the slender tube can be met.
Therefore, the clamping jaws 210 are loaded at the output end of the hydraulic cylinder 220, and the clamping jaws 210 can approach or depart from the guide holes 111 under the action of the hydraulic cylinder 220 without the guiding action of the guide rail 121, and can also press against the elongated tube to be clamped under the driving of the hydraulic cylinder, thereby playing the role of clamping and fixing the elongated tube.
In a preferred embodiment, the end of the pawl 210 near the guide hole 111 has a guide wheel 213, and the axis of the guide wheel 213 guides the axis of the hole 111. With the jaws 210 provided in this embodiment to grip the elongated tube, the guide wheel 213 presses against the outer wall of the elongated tube to limit the radial movement of the elongated tube. The elongated tube is pulled axially to drive the guide wheel 213 to rotate, so that the elongated tube slides relative to the base 100. The elongated tube is gradually slid relative to the base 100 to facilitate the gradual processing of the elongated tube at different locations by the processing equipment. It will be appreciated that such a detent 213 with guide wheel 213 does not limit the elongate tube from sliding relative to the base 100, and may be used in conjunction with other locating means to limit the axial sliding of the elongate tube if it is desired to fully secure the elongate tube.
In a preferred embodiment, referring to fig. 4, the end of the pawl 210 near the guide hole 111 is formed with a concave surface, so that the pawl 210 fits the elongated tube, thereby increasing the contact area between the pawl 210 and the elongated tube, and making the pawl 210 more firmly grip the elongated tube.
Further, in an embodiment, there is provided a pipe machining apparatus loaded with the chuck of the above embodiment.
On the basis of the above embodiment, the pipe machining apparatus is loaded with a plurality of chucks, and the plurality of chucks are coaxially provided.
The base 100 is first fixed to the secured connection surface and then the jaws 210, which are slidable relative to the base 100, are switched to the first state and the part of the jaws 210 is moved away from the guide hole 111 to enlarge the space between the respective jaws 210. Then, the elongated tube to be clamped penetrates through the guide hole 111, and then the slidable claws 210 are close to the guide hole 111, so that the claws 210 clamp the elongated tube at the intervals between the claws 210, and the claws 210 are switched to a second state to fix the elongated tube. While each jaw 210 has an extension extending axially along the guide hole 111, increasing the contact area between the jaw 210 and the elongated tube. By using the chuck provided by the invention, on one hand, the middle part of the slender tube can be clamped, and compared with the clamping of the end part of the slender tube, the length of the force arm of the slender tube in the shaking process can be effectively reduced, so that the vibration amplitude of the slender tube in the processing process is reduced. In addition, the contact area between the jaws 210 and the elongated tube is increased due to the extension of the jaws 210, so that the jaws 210 can clamp the elongated tube more stably, and the vibration amplitude of the elongated tube during the processing process is further reduced. The problem that the processing quality of the slender pipe is seriously influenced due to overlarge amplitude is avoided.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An elongated tube holding chuck, comprising:
a base having a guide hole formed therein;
a clamping member including a plurality of jaws surrounding the guide hole, at least some of the jaws having a first state moving relative to the base to approach or separate from the guide hole and a second state fixed relative to the base, and each of the jaws having an extension extending axially along the guide hole.
2. The elongated tube holding chuck as set forth in claim 1, wherein the base has a rail thereon, and the jaws have a channel formed thereon for engaging the rail.
3. The elongated tube holding chuck as set forth in claim 2, wherein the rail is provided with a threaded hole and the jaws are provided with mating holes, and wherein the rail is fixed relative to the base by inserting bolts into the mating holes and the threaded hole.
4. The elongated tube holding chuck as claimed in claim 2 or 3, wherein the base comprises a base body and a connecting strip, the base body is provided with an installation groove, the connecting strip is detachably embedded in the installation groove, and the guide rail is located on the connecting strip.
5. The elongated tube holding chuck as claimed in claim 4, wherein the mounting groove is T-shaped in cross-section and the connecting strip is T-shaped in cross-section to conform to an inner wall of the mounting groove.
6. The elongated tube holding chuck of claim 1, wherein said clamp member further comprises at least one hydraulic cylinder disposed radially of said guide opening, said output end of each hydraulic cylinder being provided with one of said jaws for driving said jaw toward or away from said guide opening.
7. The elongated tube holding chuck as claimed in claim 1, wherein the jaw has a guide wheel at an end thereof adjacent to the guide hole, and an axis of the guide wheel is aligned with an axis of the guide hole.
8. The elongated tube holding chuck as set forth in claim 1, wherein said jaws are formed with a concave surface at an end thereof adjacent said guide hole.
9. A pipe machining apparatus loaded with a chuck as claimed in any one of claims 1 to 8.
10. The pipe machining apparatus of claim 9 wherein a plurality of the chucks are loaded and are arranged coaxially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243506.1A CN113828816A (en) | 2021-10-25 | 2021-10-25 | Slender pipe clamping chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243506.1A CN113828816A (en) | 2021-10-25 | 2021-10-25 | Slender pipe clamping chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113828816A true CN113828816A (en) | 2021-12-24 |
Family
ID=78966077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111243506.1A Pending CN113828816A (en) | 2021-10-25 | 2021-10-25 | Slender pipe clamping chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113828816A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201720471U (en) * | 2010-07-19 | 2011-01-26 | 厦门市协同兴机械制造有限公司 | High-current lower terminal sealing position processing tool |
| CN205603455U (en) * | 2016-05-13 | 2016-09-28 | 藤仓烽火光电材料科技有限公司 | Level pressure clamping device is used in optical fiber perform production |
| CN210046249U (en) * | 2019-04-08 | 2020-02-11 | 大族激光科技产业集团股份有限公司 | Chuck with a locking mechanism |
| CN211727551U (en) * | 2019-12-10 | 2020-10-23 | 四川九天真空科技股份有限公司 | Clamp for machining inner ring of flange |
| CN212169698U (en) * | 2019-12-27 | 2020-12-18 | 天津市中朗博钢铁有限公司 | Clamp for cutting steel pipe |
| CN213381010U (en) * | 2020-10-18 | 2021-06-08 | 常州普江不锈钢管有限公司 | Fixing device is used in nonrust steel pipe processing |
-
2021
- 2021-10-25 CN CN202111243506.1A patent/CN113828816A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201720471U (en) * | 2010-07-19 | 2011-01-26 | 厦门市协同兴机械制造有限公司 | High-current lower terminal sealing position processing tool |
| CN205603455U (en) * | 2016-05-13 | 2016-09-28 | 藤仓烽火光电材料科技有限公司 | Level pressure clamping device is used in optical fiber perform production |
| CN210046249U (en) * | 2019-04-08 | 2020-02-11 | 大族激光科技产业集团股份有限公司 | Chuck with a locking mechanism |
| CN211727551U (en) * | 2019-12-10 | 2020-10-23 | 四川九天真空科技股份有限公司 | Clamp for machining inner ring of flange |
| CN212169698U (en) * | 2019-12-27 | 2020-12-18 | 天津市中朗博钢铁有限公司 | Clamp for cutting steel pipe |
| CN213381010U (en) * | 2020-10-18 | 2021-06-08 | 常州普江不锈钢管有限公司 | Fixing device is used in nonrust steel pipe processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211224 |
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| RJ01 | Rejection of invention patent application after publication |