CN111974889A - Pipe fitting end clamping device - Google Patents
Pipe fitting end clamping device Download PDFInfo
- Publication number
- CN111974889A CN111974889A CN201910425419.4A CN201910425419A CN111974889A CN 111974889 A CN111974889 A CN 111974889A CN 201910425419 A CN201910425419 A CN 201910425419A CN 111974889 A CN111974889 A CN 111974889A
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- CN
- China
- Prior art keywords
- piston
- push rod
- air inlet
- clamping
- groove
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a pipe fitting tail end clamping device, which comprises a first pneumatic cylinder, a second pneumatic cylinder and a clamping assembly, wherein the first pneumatic cylinder is used for accommodating a first piston in a first cylinder body and is provided with a first air inlet hole, a second air inlet hole, a first air chamber and a second air chamber which respectively correspond to the first air inlet hole and the second air inlet hole, a first push rod is arranged on the first piston, the second pneumatic cylinder is used for accommodating a second piston in a second cylinder body and is provided with a third air inlet hole, a fourth air inlet hole, a third air chamber and a fourth air chamber which respectively correspond to the third air inlet hole and the fourth air chamber, a second push rod is arranged on the second piston, the clamping assembly is provided with a clamping seat and a clamping piece in a shell, and the clamping assembly is used for controlling the first piston or the second piston to respectively displace in the first cylinder body and the second cylinder body by driving air into different air inlet holes of the first pneumatic cylinder or.
Description
Technical Field
The invention relates to a pipe clamping device, in particular to a pipe clamping device which is used for clamping the tail end of a pipe to be matched with a pipe bending mechanism, a pipe cutting mechanism or other pipe processing mechanisms to operate.
Background
As shown in fig. 1, the pipe clamping device 121 is disposed on the pipe processing machine 1 to clamp a pipe by a clamp disposed on the clamping device 121, and a slide rail 13 disposed on a machine table 11 is used to slide and displace the feeding device 12, so as to push the pipe to be fed to the processing device 14 for pipe processing. Because the conventional pipe clamping device 121 is a clamp which is arranged in the outer pipe body and clamps the outer wall of the pipe, when the outer pipe body is driven by the power assembly to move, the clamp is retracted to clamp the outer wall of the pipe so as to push the pipe. However, the clamping device 121 may cause waste at the clamped portion of the pipe, and has disadvantages such as complex assembly structure.
In order to overcome the above-mentioned disadvantages, the applicant of the present application filed and approved japanese patent No. I323198 in taiwan, which discloses a pipe clamping device for a pipe bender, wherein an outer tube is assembled at the front end of a base, a pipe supporting seat is disposed at the end of the outer tube, an inner tube fixed to the base is disposed in the outer tube, and a supporting seat corresponding to the pipe supporting seat is disposed at the end of the inner tube, so that the base and the inner tube can move on the outer tube wall, and the pipe is supported against the inner wall by the clamping device during bending, thereby achieving a fixed pushing action, increasing the usable length of the bent pipe, and reducing the waste of the base material.
In addition, taiwan patent No. 584027 discloses a tube end pushing device for a tube bending machine, which comprises a tube transferring set composed of a movable plate with an adjusting plate and a clamping member capable of clamping a tube, and a tube pushing set composed of the movable plate, a first power device, a second power device, a fixing member and a pushing member, so that after the clamping member approaches a bending mold seat and a guide mold seat during a tube bending operation, the first power device controls the movable plate to stop moving, and the second power device controls the movable plate of the tube transferring set to move backward, so that the tube end is pushed by the pushing member to be smoothly bent and formed, thereby avoiding waste of the tube end.
However, taiwan patent No. I315227 discloses a tube-pushing device for a tube bending machine, which is provided with a driving cylinder on the same axis as the push rod of the tube-clamping unit, wherein the first piston rod of the driving cylinder can drive the push rod to extend along a long direction, so as to push the tube tail out of the tube-clamping unit, thereby solving the tube tail problem.
Disclosure of Invention
In view of the defects that the existing pipe clamping device is easy to cause waste materials at the clamped part of the pipe and has complex assembly structure and the like.
Therefore, the purpose of the invention is to control the clamping pieces in the vertical direction and the horizontal direction to act through two groups of pneumatic cylinders respectively so as to achieve the purpose of simplifying the structure of the clamping device.
To achieve the above objects, the present invention provides a pipe end clamping device, which is sleeved on an output shaft of a power element and fixed to a fixing member of the power element, and comprises at least two sets of pneumatic cylinders and clamping assemblies corresponding to the pneumatic cylinders, wherein the clamping device comprises a first pneumatic cylinder, a second pneumatic cylinder and a clamping assembly, wherein:
The first pneumatic cylinder includes:
the first cylinder body forms a first containing groove, and a first air inlet and a second air inlet are arranged on the pipe wall of the first cylinder body; and
a first piston accommodated in the first accommodating groove, so that a first air chamber and a second air chamber corresponding to the first air inlet hole and the second air inlet hole respectively are formed between the first piston and the first cylinder body, and the first piston is provided with a first push rod;
the second pneumatic cylinder includes:
the second cylinder body forms a second containing groove, the wall of the second cylinder body pipe is provided with a third air inlet hole and a fourth air inlet hole, and the second containing groove forms a through hole for the first push rod to penetrate through; and
a second piston, which is accommodated in the second accommodating groove, so that a third air chamber and a fourth air chamber corresponding to the third air inlet hole and the fourth air inlet hole respectively are formed between the second piston and the second cylinder body, the second piston is provided with a second push rod, and a through hole for the first push rod to penetrate is formed on the second piston;
the clamping assembly comprises:
a shell, which is provided with a containing groove, the containing groove is provided with a through hole for the first push rod and the second push rod to penetrate through, the containing groove is internally provided with a plurality of convex columns which are fixedly locked on the first push rod or the second push rod, and the convex columns form a rail groove;
A clamping seat which is accommodated in the accommodating groove and is provided with a through hole for the first push rod and the second push rod to penetrate through, and a plurality of sliding chutes are formed; and
a plurality of clamping pieces which are accommodated in the sliding groove, a sliding rail which is correspondingly embedded with the rail groove is formed on the clamping pieces, and a clamping head is arranged at the tail end of the clamping pieces.
The pipe fitting end clamping device is characterized in that a ring groove communicated with the first air inlet hole is formed at the bottom of the first piston to form the first air chamber.
In the pipe end clamping device, the second piston forms a ring groove corresponding to the ring surface of the third air inlet hole to form the third air chamber.
In the pipe fitting end clamping device, the first push rods of the first pistons are arranged in the vertical direction, and the second push rods of the second pistons are arranged in the horizontal direction, so that the first push rods and the second push rods are arranged in a staggered manner.
The pipe fitting tail end clamping device is characterized in that the combination surface of the sliding rail and the rail groove is 45 degrees.
Based on the above, the pipe clamping device can drive gas into different air inlets of the first pneumatic cylinder or the second pneumatic cylinder to control the first piston or the second piston to respectively move in the first cylinder and the second cylinder, so as to control the clamping piece to clamp or release the pipe, and improve the convenience of the pipe clamping device in operation and control.
It should be noted that the clamping device may include more than three sets of pneumatic cylinders, and the pushing rods of the third set of pneumatic cylinder pistons are staggered with the first and second pushing rods of the first and second pneumatic cylinders, and the cylinder body accommodating grooves of the second set of pneumatic cylinders form through holes for the first and second pushing rods to penetrate through, so that the clamping device can be correspondingly provided with additional clamping components by means of the additional pneumatic cylinders, and the clamping device can meet the clamping requirements of more pipes in such a manner.
Drawings
FIG. 1 is a schematic diagram of a conventional clamping device implemented in a pipe machining machine.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is an exploded perspective view of the present invention.
Fig. 4 is an exploded perspective view of another angle of the present invention.
3 FIG. 3 5 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 the 3 present 3 invention 3. 3
Fig. 6 is an exploded perspective view of the clamping assembly of the present invention.
3 fig. 3 7 3- 3 9 3 are 3 schematic 3 sectional 3 views 3 a 3- 3 a 3 of 3 the 3 tube 3 clamp 3 of 3 the 3 present 3 invention 3. 3
FIGS. 10-11 are schematic cross-sectional views B-B of the tube clamp of the present invention.
3 FIG. 312 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 the 3 present 3 invention 3 showing 3 the 3 release 3 of 3 the 3 tubular 3 from 3 the 3 grip 3. 3
FIG. 13 is a schematic cross-sectional view B-B of the present invention showing the release of the tube grip.
Description of reference numerals: [ Prior Art ] 1-pipe processing machine; 11-a machine table; 12-a feeding device; 121-a clamping device; 13-a slide rail; 14-a processing device; [ invention ] 2-a holding device; 21-a first pneumatic cylinder; 211-a first cylinder; 2111-first vessel; 2112-first intake port; 2113-second intake ports; 2114-first air chamber; 2115-second plenum; 212-a first piston; 2121-first push rod; 2122-ring groove; 22-second pneumatic cylinder; 221-a second cylinder; 2211-second vessel; 2212-third air inlet; 2213-fourth intake ports; 2214-perforations; 2215-third air chamber; 2216-fourth air chamber; 222-a second piston; 2221-a second push rod; 2222-perforation; 2223-ring groove; 23-a clamping assembly; 231-a housing; 2311-containing groove; 2312-a through hole; 2313-convex column; 2314-rail groove; 232-a clamping seat; 2321-a via; 2322-a chute; 233-a clamp; 2331-slide rail; 2332-chuck; 3-a power element; 31-an output shaft; 32-a fixed seat; 4-pipe fitting.
Detailed Description
To facilitate an understanding of the techniques, means, and functions employed in connection with the present invention, reference should now be made to the preferred embodiments illustrated in the accompanying drawings and described in the following detailed description:
first, referring to fig. 2 to 4, the clamping device 2 of the present invention is sleeved on an output shaft 31 of a power element 3 and fixed on a fixing member 32 of the power element 3, and the clamping device 2 includes at least two sets of pneumatic cylinders and clamping assemblies corresponding to the pneumatic cylinders, in an embodiment of the present invention, the clamping device 2 includes a first pneumatic cylinder 21, a second pneumatic cylinder 22 and a clamping assembly 23. The first pneumatic cylinder 21 includes a first cylinder 211 and a first piston 212. The first cylinder 211 forms a first receiving slot 2111, and a first air inlet 2112 and a second air inlet 2113 are disposed on the wall of the first cylinder 211 (see fig. 5); the first piston 212 is accommodated in the first accommodating groove 2111, so that a first air chamber 2114 and a second air chamber 2115 corresponding to the first air inlet hole 2112 and the second air inlet hole 2113 are formed between the first piston 212 and the first cylinder 211, wherein the first air chamber 2114 is formed by forming an annular groove 2122 communicating with the first air inlet hole 2112 at the bottom of the first piston 212, and two first push rods 2121 are vertically arranged on the first piston 212. The second pneumatic cylinder 22 includes a second cylinder 221 and a second piston 222. The second cylinder 221 forms a second accommodating slot 2211, a third air inlet 2212 and a fourth air inlet 2213 are arranged on the wall of the second cylinder 221, and a through hole 2214 for the first push rod 2121 to pass through is formed in the second accommodating slot 2211; the second piston 222 is accommodated in the second accommodating slot 2211, so that a third air chamber 2215 and a fourth air chamber 2216 corresponding to the third air inlet 2212 and the fourth air inlet 2213 are formed between the second piston 222 and the second cylinder 221, wherein the third air chamber 2215 is formed by forming an annular groove 2223 on the annular surface of the second piston 222 corresponding to the third air inlet 2212, and two second pushing rods 2221 are horizontally arranged on the second piston 222, so that the first pushing rods 2121 and the second pushing rods 2221 are arranged in a staggered manner, and a through hole 2222 for the first pushing rod 2121 to pass through is formed on the second piston 222. The clamping assembly 23 comprises a housing 231, a clamping seat 232 and a plurality of clamping members 233, wherein the housing 231 is formed with a receiving groove 2311, the receiving groove 2311 is provided with a through hole 2312 for the first push rod 2121 and the second push rod 2221 to penetrate through, the receiving groove 2311 is internally provided with a plurality of convex columns 2313 fixedly locked on the first push rod 2121 or the second push rod 2221, and the convex columns 2313 are formed with rail grooves 2314; the clamping seat 232 is accommodated in the accommodating groove 2311, and the clamping seat 232 is provided with a through hole 2321 through which the first push rod 2121 and the second push rod 2221 penetrate, and a plurality of sliding grooves 2322 are formed; the clamping member 233 is accommodated in the sliding slot 2322, a sliding rail 2331 for being correspondingly engaged with the rail slot 2314 of the boss 2313 is formed on the clamping member 233, and a clamping head 2332 is disposed at the end of the clamping member 233, in an embodiment of the present invention, a joint surface between the sliding rail 2331 of the clamping member 233 and the rail slot 2314 of the boss 2313 is 45 degrees (as shown in fig. 6), such that a displacement stroke of the first piston 212 or the second piston 222 is the same as a displacement stroke of the boss 2313 of the clamping assembly 23.
Next, as shown in fig. 7, when the pipe clamping device 2 is to clamp the pipe 4, the clamping assembly 23 is actuated by driving the first pneumatic cylinder 21 and the second pneumatic cylinder 22 with gas. The gas is pumped from the first gas inlet 2112 of the first cylinder body 211 of the first gas cylinder 21, so that the gas enters the first gas chamber 2114 and pushes the first piston 212 (as shown by the arrow in fig. 7), and the first push rod 2121 pushes the boss 2313 out, so that the clamping member 233 is pushed out of the sliding slot 2322 and slides down along the rail slot 2314 of the boss 2313 at an angle (as shown in fig. 8) by the slide rail 2331, and the clamping head 2332 of the clamping member 233 clamps the pipe 4. The second pneumatic cylinder 22 drives the gas through the third gas inlet 2212 of the second cylinder 221 (as shown in fig. 9), so that the gas enters the third gas chamber 2215 and pushes the second piston 222 (as shown by the arrow in fig. 10), so as to push the boss 2313 out by the second push rod 2221, so that the clamping member 233 is pushed out of the sliding slot 2322 and slides down along the track slot 2314 of the boss 2313 by the sliding rail 2331 (as shown in fig. 11), and the clamping head 2332 of the clamping member 233 clamps the pipe 4, thereby completing the clamping operation of the pipe 4.
Then, referring to fig. 12 to 13, when the pipe fitting 4 is bent, cut or otherwise processed, air can be pumped from the second air inlet 2113 of the first pneumatic cylinder 21 and the fourth air inlet 2213 of the second pneumatic cylinder 22, so that the air enters the second air chamber 2115 and the fourth air chamber 2216, respectively, and the first piston 212 and the second piston 222 are pushed (as shown by the arrow in fig. 12), thereby resetting the clamping member 233 locked to the first push rod 2121 and the second push rod 2221.
Thus, the pipe clamping device 2 of the present invention can drive air into different air inlets as required to push the first piston 212 or the second piston 222 to move, thereby controlling the clamping member 233 to clamp or release the pipe 4, and improving the convenience of the pipe clamping device 2 in operation and control.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a terminal clamping device of pipe fitting, this clamping device supplies the cover to locate a power component's output shaft to be fixed in this power component's mounting, and this clamping device contains at least two sets of pneumatic cylinders and the centre gripping subassembly that corresponds with this pneumatic cylinder, its characterized in that, this clamping device contains a first pneumatic cylinder, a second pneumatic cylinder and a centre gripping subassembly, wherein:
the first pneumatic cylinder includes:
the first cylinder body forms a first containing groove, and a first air inlet and a second air inlet are arranged on the pipe wall of the first cylinder body; and
a first piston accommodated in the first accommodating groove, so that a first air chamber and a second air chamber corresponding to the first air inlet hole and the second air inlet hole respectively are formed between the first piston and the first cylinder body, and the first piston is provided with a first push rod;
The second pneumatic cylinder includes:
the second cylinder body forms a second containing groove, the wall of the second cylinder body pipe is provided with a third air inlet hole and a fourth air inlet hole, and the second containing groove forms a through hole for the first push rod to penetrate through; and
a second piston, which is accommodated in the second accommodating groove, so that a third air chamber and a fourth air chamber corresponding to the third air inlet hole and the fourth air inlet hole respectively are formed between the second piston and the second cylinder body, the second piston is provided with a second push rod, and a through hole for the first push rod to penetrate is formed on the second piston;
the clamping assembly comprises:
a shell, which is provided with a containing groove, the containing groove is provided with a through hole for the first push rod and the second push rod to penetrate through, the containing groove is internally provided with a plurality of convex columns which are fixedly locked on the first push rod or the second push rod, and the convex columns form a rail groove;
a clamping seat which is accommodated in the accommodating groove and is provided with a through hole for the first push rod and the second push rod to penetrate through, and a plurality of sliding chutes are formed; and
a plurality of clamping pieces which are accommodated in the sliding groove, a sliding rail which is correspondingly embedded with the rail groove is formed on the clamping pieces, and a clamping head is arranged at the tail end of the clamping pieces.
2. The fitting end holding device according to claim 1, wherein the first piston bottom portion is formed with a ring groove communicating with the first air intake hole to form the first air chamber.
3. The fitting end holding device of claim 1, wherein the second piston forms an annular groove corresponding to the annular surface of the third air inlet hole to form the third air chamber.
4. The tube end gripping device of claim 1, wherein the first push rod of the first piston is disposed in a vertical direction and the second push rod of the second piston is disposed in a horizontal direction such that the first push rod and the second push rod are staggered.
5. The tubular end gripping apparatus of claim 1, wherein the rail is at a 45 degree angle to the rail channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425419.4A CN111974889B (en) | 2019-05-21 | 2019-05-21 | Pipe fitting end clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425419.4A CN111974889B (en) | 2019-05-21 | 2019-05-21 | Pipe fitting end clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111974889A true CN111974889A (en) | 2020-11-24 |
| CN111974889B CN111974889B (en) | 2022-08-26 |
Family
ID=73436960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910425419.4A Active CN111974889B (en) | 2019-05-21 | 2019-05-21 | Pipe fitting end clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111974889B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2736563A (en) * | 1952-08-27 | 1956-02-28 | Union Mfg Co | Double-acting chuck |
| US3926446A (en) * | 1973-06-22 | 1975-12-16 | Roehm Guenter H | Multiple-jaw power chuck |
| JPH08257930A (en) * | 1995-03-24 | 1996-10-08 | Katsuteru Araki | Pipe clamping mechanism and pipe end machining device using same |
| US6089577A (en) * | 1997-10-03 | 2000-07-18 | Smc Corporation | Two drive-system fluid pressure chuck |
| US6371468B1 (en) * | 1999-12-17 | 2002-04-16 | United Technologies Research Center | Universal workpiece holder |
| US20080036163A1 (en) * | 2006-08-08 | 2008-02-14 | Friedrich Kurz | Quick chucking unit, with sealing unit, and quick chucking system |
| CN202531061U (en) * | 2012-05-07 | 2012-11-14 | 长沙矿山研究院有限责任公司 | Fixture mechanism of rod replacing mechanism of deep sea drilling machine |
| CN105750384A (en) * | 2016-05-16 | 2016-07-13 | 安徽德系重工科技有限公司 | Improved inner-pushing type clamping device for numerical control tube bending machine |
| CN205551168U (en) * | 2016-04-27 | 2016-09-07 | 安徽德系重工科技有限公司 | CNC tube bending machine is with interior pushing -type clamping device of removable chuck |
| US20160256934A1 (en) * | 2015-03-04 | 2016-09-08 | Roehm Gmbh | Ultra-lightweight clamping device |
| CN107159913A (en) * | 2017-05-24 | 2017-09-15 | 武汉思瑞法机器人制造有限公司 | A kind of cutter holder processed for materials in the tube end |
| CN207222579U (en) * | 2017-09-18 | 2018-04-13 | 常州市一马机械有限公司 | Cold pilger mill oild chuck device |
-
2019
- 2019-05-21 CN CN201910425419.4A patent/CN111974889B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2736563A (en) * | 1952-08-27 | 1956-02-28 | Union Mfg Co | Double-acting chuck |
| US3926446A (en) * | 1973-06-22 | 1975-12-16 | Roehm Guenter H | Multiple-jaw power chuck |
| JPH08257930A (en) * | 1995-03-24 | 1996-10-08 | Katsuteru Araki | Pipe clamping mechanism and pipe end machining device using same |
| US6089577A (en) * | 1997-10-03 | 2000-07-18 | Smc Corporation | Two drive-system fluid pressure chuck |
| US6371468B1 (en) * | 1999-12-17 | 2002-04-16 | United Technologies Research Center | Universal workpiece holder |
| US20080036163A1 (en) * | 2006-08-08 | 2008-02-14 | Friedrich Kurz | Quick chucking unit, with sealing unit, and quick chucking system |
| CN202531061U (en) * | 2012-05-07 | 2012-11-14 | 长沙矿山研究院有限责任公司 | Fixture mechanism of rod replacing mechanism of deep sea drilling machine |
| US20160256934A1 (en) * | 2015-03-04 | 2016-09-08 | Roehm Gmbh | Ultra-lightweight clamping device |
| CN205551168U (en) * | 2016-04-27 | 2016-09-07 | 安徽德系重工科技有限公司 | CNC tube bending machine is with interior pushing -type clamping device of removable chuck |
| CN105750384A (en) * | 2016-05-16 | 2016-07-13 | 安徽德系重工科技有限公司 | Improved inner-pushing type clamping device for numerical control tube bending machine |
| CN107159913A (en) * | 2017-05-24 | 2017-09-15 | 武汉思瑞法机器人制造有限公司 | A kind of cutter holder processed for materials in the tube end |
| CN207222579U (en) * | 2017-09-18 | 2018-04-13 | 常州市一马机械有限公司 | Cold pilger mill oild chuck device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111974889B (en) | 2022-08-26 |
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