CN107695217A - Self-gripping jaws mechanism and hand-held electric tube expander on electric tube expander - Google Patents
Self-gripping jaws mechanism and hand-held electric tube expander on electric tube expander Download PDFInfo
- Publication number
- CN107695217A CN107695217A CN201711036907.3A CN201711036907A CN107695217A CN 107695217 A CN107695217 A CN 107695217A CN 201711036907 A CN201711036907 A CN 201711036907A CN 107695217 A CN107695217 A CN 107695217A
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- Prior art keywords
- tube expansion
- self
- clamping jaw
- pedestal
- seat
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Manipulator (AREA)
Abstract
The present invention relates to tube expansion processing, more particularly to the self-gripping jaws mechanism on electric tube expander and hand-held electric tube expander.Including pedestal.On pedestal and the tube expansion of pipe fitting can be clamped, the push rod of swollen head in the tube expansion, the front end of the tube expansion is provided with clamping jaw portion, Automatic-clamping component is additionally provided with the pedestal, the Automatic-clamping component includes the chuck being set on the tube expansion outer peripheral face, in the tube expansion and the core pipe that is set on the push rod, on the pedestal and linkage seat that the chuck and core pipe can be driven to move, by driving linkage seat to move forward and backward to realize the release in clamping jaw portion or clamping, after pipe fitting completes tube expansion work, the swollen head retreated moves after can driving linkage seat, so as to realize action linkage, it is automatic to unclamp clamping jaw portion, it is not required to operate by human hand, improve efficiency.
Description
【Technical field】
The present invention relates to tube expansion processing, more particularly to the self-gripping jaws mechanism on electric tube expander and hand-held electric tube expander.
【Background technology】
Electric tube expander is to be clamped pipe fitting using clamping jaw, then stretches to pipe by the big swollen ball of the radius ratio pipe fitting endoporus of inside
The endoporus of part, make pipe fitting end support big.At present, the clamp system of electric tube expander is in using the thermally treated occiput of clamping jaw and opened
Open state, clamping are to push away to close up it before covering by clamping jaw.Clamping jaw set manner of execution is manual, and folder is promoted by a push rod
Pawl set makes it move forward and backward, and this just makes operative employee operate more actions during machine, less efficient.
【The content of the invention】
Make to cause efficiency low manually to solve the problems, such as that clamping jaw covers manner of execution in the prior art, the invention provides knot
Self-gripping jaws mechanism on the relatively simple electric tube expander of structure.
The present invention is achieved by the following technical solutions：
Self-gripping jaws mechanism on electric tube expander, including pedestal.On pedestal and the tube expansion of pipe fitting can be clamped, positioned at described
Swollen head and the swollen head can be driven in the push rod of swollen in-pipe in tube expansion, the front end of the tube expansion, which is provided with, can unclamp or clamp
Clamping jaw portion, the Automatic-clamping component that can clamp the clamping jaw portion, the Automatic-clamping component bag are additionally provided with the pedestal
Include be set on the tube expansion outer peripheral face chuck, in the tube expansion and be set on the push rod core pipe, located at institute
State on pedestal and the chuck can be driven and core pipe movement linkage seat, by drive it is described linkage seat travel forward, folder can be made
Set travels forward and the clamping jaw portion of tube expansion front end is clamped pipe fitting, drives swollen head to move backward by push rod, swollen head can drive
The core pipe is moved backward, so that linkage seat, which drives chuck to move backward, automatically disengages clamping jaw portion.
Self-gripping jaws mechanism on electric tube expander as described above, being additionally provided between the linkage seat and pedestal can be by described in certainly
The back-moving spring that dynamic clamp assembly pushes away forward.
Self-gripping jaws mechanism on electric tube expander as described above, after the pedestal includes back seat plate, fore beam and is provided with
Seat board and the left support block and right support block of fore beam both sides, it is provided between the left support block and right support block and is used to lay institute
State linkage seat and being available for link seat movement the first cavity and be used to install the of the back-moving spring after the first cavity
Two cavitys, and the width of second cavity be less than first cavity width with limit it is described linkage seat displacement.
Self-gripping jaws mechanism on electric tube expander as described above, the back seat plate, fore beam and linkage seat correspondence position
On be equipped with the through hole passed through for the push rod, and the through hole on the fore beam is also available for the core pipe to pass through and the linkage
Seat connection.
Self-gripping jaws mechanism on electric tube expander as described above, the Automatic-clamping component also include connecting with the linkage seat
The pushing block connect, the pushing block are located at the front end of fore beam and which is provided with the mounting hole passed through for the tube expansion, the chuck
One end is connected with the pushing block, and guide hole is further opened with the fore beam, and the pushing block passes through guide hole and institute by connector
Linkage seat is stated to connect so that the linkage seat can drive pushing block to move when moving.
Self-gripping jaws mechanism on electric tube expander as described above, the front end of the swollen head is spherical shape, and its width is more than
The internal diameter of the core pipe make its can be withstood on when being moved rearwards on the end tube wall of core pipe drive core pipe be moved rearwards.
Self-gripping jaws mechanism on electric tube expander as described above, offered along its length from its front end on the tube expansion
A plurality of gap, and the length in gap is less than the clamping jaw that the length of tube expansion makes its front end form polylith circumferential arrangement, described in polylith
Clamping jaw forms described clamping jaw portion, can make the clamping jaw described in polylith close to each other when the chuck is moved to front end, by tube clip
Tightly.
Self-gripping jaws mechanism on electric tube expander as described above, the push rod stretch out from the rear end of the pedestal, and described
The drive component for driving the push rod to move forwards or backwards is additionally provided with the rear end of pedestal, the drive component drives including oil pressure
Dynamic motor and the first gear pair and second gear pair that rotation is driven by the oil pressure actuated motor, the first gear is to bag
Intermeshing first gear and the first lower gear are included, the push rod passes through between the first gear and the first lower gear,
The oil pressure actuated motor can drive pushrod movement when driving the first gear to rotate.
Self-gripping jaws mechanism on electric tube expander as described above, the pedestal are provided with the tube expansion described in two, two institutes
The tube expansion stated is arranged in parallel.
Hand-held electric tube expander, including frame, the frame are provided with the self-gripping jaws mechanism on electric tube expander as described above.
Compared with prior art, the present invention has the following advantages：
1st, the invention provides the self-gripping jaws mechanism on electric tube expander, Automatic-clamping component is added, is linked by driving
Seat is moved forward and backward to realize the release in clamping jaw portion or clamping, and after pipe fitting completes tube expansion work, the swollen head of retrogressing can drive linkage
Moved after seat, it is automatic to unclamp clamping jaw portion so as to realize action linkage, it is not required to operate by human hand, improves efficiency.
2nd, the self-gripping jaws mechanism on electric tube expander of the invention, linked seat come boosting using back-moving spring, make push rod preceding
Link during shifting and under the action of the spring the reach of seat automatic traction chuck, and completion automatically clamps clamping jaw portion, further
The automation of machine is improved, improves efficiency.
3rd, the double tube expansions of use of the invention, and the chuck on pair tube expansions is driven using a linkage seat.Simple structure
Double tube expansion work can be carried out simultaneously, improve efficiency.
【Brief description of the drawings】
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the self-gripping jaws mechanism on electric tube expander of the present invention；
Fig. 2 is Fig. 1 Section A-A sectional view (clamping jaw portion releasing orientation)；
Fig. 3 is the sectional view of clamping jaw portion releasing orientation clamped condition；
Fig. 4 is the structural representation of hand-held electric tube expander；
Fig. 5 is the structural blast schematic diagram of hand-held electric tube expander；
Fig. 6 is the structure chart of processing pipe fitting.
【Embodiment】
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The present invention is achieved by the following technical solutions：
As shown in Figures 1 to 5, the self-gripping jaws mechanism on electric tube expander, including pedestal 1.On pedestal 1 and pipe can be clamped
The tube expansion 2 of part 9, swollen first 3 and swollen first 3 push rod 4 moved in tube expansion 2 can be driven in the tube expansion 2, it is described swollen
The front end of pipe 2 is provided with the clamping jaw portion 201 that can be unclamped or clamp, and being additionally provided with the pedestal 1 can make what the clamping jaw portion 201 clamped
Automatic-clamping component, the Automatic-clamping component include being set in chuck 501 on the outer peripheral face of tube expansion 2, positioned at described swollen
In pipe 2 and be set on the push rod 4 core pipe 502, on the pedestal 1 and can drive the chuck 501 and core pipe 502
Mobile linkage seat 503, by driving the linkage seat 503 to travel forward, before chuck 501 can be made to travel forward and make tube expansion 2
The clamping jaw portion 201 at end clamps pipe fitting 9, drives swollen first 3 to move backward by push rod 4, swollen first 3 can drive the core pipe 502 to
After move so that linkage seat 503 drives chuck 501 to move automatically disengage clamping jaw portion 201 backward.The invention provides electric tube expander
On self-gripping jaws mechanism, add Automatic-clamping component, by drive linkage seat move forward and backward to realize the release in clamping jaw portion
Or clamp, after pipe fitting completes tube expansion work, the swollen head of retrogressing moves after can driving the seat that links, so as to realize action linkage, automatically
Clamping jaw portion is unclamped, is not required to operate by human hand, improves efficiency.
Wherein, the movement of linkage seat 503 can be driven by increasing driving element, in this programme, the linkage seat 503 with
The back-moving spring 504 that the Automatic-clamping component can be pushed away forward is additionally provided between pedestal 1.Linked using back-moving spring come boosting
Seat, makes push rod during reach and the seat automatic traction chuck that links under the action of the spring moves forward, and completes automatically by clamping jaw
Portion clamps, and further improves the automation of machine, improves efficiency.And it is simple in construction, reduce manufacturing cost and later stage
Maintenance cost, it is easy to use.
Specifically, the structure of pedestal is：The pedestal 1 includes back seat plate 101, fore beam 102 and provided with back seat plate 101
With the left support block 103 and right support block 104 of the both sides of fore beam 102, set between the left support block 103 and right support block 104
Have for lay it is described linkage seat 503 and be available for link seat 503 move the first cavity 105 and after the first cavity 105
For installing the second cavity 106 of the back-moving spring 504, and the width of second cavity 106 is less than first cavity
105 width with limit it is described linkage seat 503 displacement.The back seat plate 101, fore beam 102 and 503 pairs of seat of linkage
The through hole for being equipped with position and being passed through for the push rod 4 is answered, and the through hole on the fore beam 102 is also available for the core pipe 502
It is connected through with the linkage seat 503.
In addition, the Automatic-clamping component also includes the pushing block 505 being connected with the linkage seat 503, the pushing block 505
In the front end of fore beam 102 and the mounting hole passed through for the tube expansion 2 is which is provided with, one end of the chuck 501 pushes away with described
Block 505 is connected, and guide hole is further opened with the fore beam 102, the pushing block 505 by connector through guide hole with it is described
Dynamic seat 503 connects so that the linkage seat 503 can drive pushing block 505 to move when moving.Interlocked, realized using pushing block and linkage seat
Linkage during existing electric tube expander push rod normal work, folder can be realized to realize not increasing in the case that other are operated
Pawl is automatically opened up and clamped.
Specifically, swollen first 3 front end is spherical shape, and its width makes it backward more than the internal diameter of the core pipe 502
Can be withstood on when mobile on the end tube wall of core pipe 502 drives core pipe 502 to be moved rearwards.It is easy to that when moving after swollen head linkage can be driven
Moved after seat, so as to realize action linkage.
Again specifically, a plurality of gap is offered along its length from its front end on the tube expansion 2, and the length in gap is small
Its front end is set to form the clamping jaw 2011 of polylith circumferential arrangement in the length of tube expansion 2, the clamping jaw 2011 described in polylith forms described
Clamping jaw portion 201, the chuck 501 can make the clamping jaw 2011 described in polylith close to each other, pipe fitting 9 clamped when being moved to front end.
Simple structure, the movable of chuck is coordinated to can be achieved to unclamp or clamp pipe fitting.
The push rod 4 is stretched out from the rear end of the pedestal 1, and the driving push rod 4 is additionally provided with the rear end of the pedestal 1
The drive component moved forwards or backwards, the drive component include oil pressure actuated motor 601 and by the oil pressure actuated horses
The first gear pair and second gear pair rotated up to 601 drivings, the first gear is to including intermeshing first gear
6021 and first lower gear 6022, the push rod 4 passed through between the first gear 6021 and the first lower gear 6022, the oil
Pressure drive motor 601 can drive push rod 4 to move when driving the first gear to rotate.Wherein the first gear 6021 and the first lower tooth
The annular groove radially extended along its outer peripheral face is offered on the flank of tooth of wheel 6022, push rod is compressed by annular groove, in the first gear
During rotation, the friction-driven pushrod movement between annular groove and push rod is utilized.
The pedestal 1 is provided with the tube expansion 2 described in two, and the tube expansion 2 described in two is arranged in parallel.And using a linkage
Seat drives the chuck on double tube expansions.Simple structure can carry out double tube expansion work simultaneously, improve efficiency.
As shown in Figure 4, Figure 5, electric tube expander, including frame 8 are held, the frame 8 is provided with electric tube expander as described above
Self-gripping jaws mechanism.
As shown in fig. 6, the pipe fitting 9 of machined completion, the caliber after its tube expansion of end 901 is slightly larger than the pipe shaft of its pipe fitting 9
Caliber.
Operation principle：
When being in releasing orientation in clamping jaw portion 201, pipe fitting 9 to be processed is put into clamping jaw portion 201, push rod and drives swollen head
3 are moved along, and linkage seat 503 travels forward in the presence of back-moving spring 504, and drives pushing block 505 to travel forward, so that
The chuck 501 being connected on pushing block is moved to the direction of clamping jaw portion 201, and polylith clamping jaw 2011 can be made when chuck 501 is moved to front end
It is close to each other, pipe fitting 9 is clamped, push rod 4 continues to drive swollen first 3 to move forward, and makes swollen first 3 to stretch to and is clamped in clamping jaw portion 201
In the pipe fitting endoporus at place, big pipe fitting is supportted, after completing tube expansion work, push rod 4 drives swollen first 3 to move backward, and swollen first 3 motion is as core
During the tube wall contact of pipe 502, drive core pipe 502 together to move backward, make the linkage seat 503 that is connected with core pipe motion compresses backward
Back-moving spring 504, depart from clamping jaw portion 201, polylith clamping jaw 2011 so that being moved backward with the pushing block 505 that linkage seat 503 is connected
Automatic to unclamp, pipe fitting can be taken off.
The invention provides the self-gripping jaws mechanism on electric tube expander, Automatic-clamping component is added, by driving the seat that links
Move forward and backward to realize the release in clamping jaw portion or clamping, after pipe fitting completes tube expansion work, the swollen head of retrogressing can drive linkage seat
After move, it is automatic to unclamp clamping jaw portion so as to realize action linkage, be not required to operate by human hand, improve efficiency.
It is to combine one or more embodiments that particular content provides as described above, does not assert the specific reality of the present invention
Apply and be confined to these explanations.It is all approximate with method of the invention, structure etc., identical, or for present inventive concept under the premise of
Make some technologies to deduce, or replacement should all be considered as protection scope of the present invention.
Claims (10)
1. the self-gripping jaws mechanism on electric tube expander, including pedestal (1).On pedestal (1) and the tube expansion of pipe fitting (9) can be clamped
(2), swollen head (3) and the push rod (4) that the swollen head (3) can be driven to be moved in tube expansion (2) in the tube expansion (2), its
It is characterised by, the front end of the tube expansion (2) is provided with the clamping jaw portion (201) that can be unclamped or clamp, and being additionally provided with the pedestal (1) can
The Automatic-clamping component for clamping the clamping jaw portion (201), the Automatic-clamping component include being set in the tube expansion (2) periphery
Chuck (501) on face, in the tube expansion (2) and be set on the push rod (4) core pipe (502), located at the seat
On body (1) and the chuck (501) and the linkage seat (503) of core pipe (502) movement can be driven, by driving the linkage seat
(503) travel forward, chuck (501) can be made to travel forward and the clamping jaw portion (201) of tube expansion (2) front end is clamped pipe fitting (9),
Swollen head (3) is driven to move backward by push rod (4), swollen head (3) can drive the core pipe (502) to move backward, so that linkage
Seat (503) drives chuck (501), and motion automatically disengages clamping jaw portion (201) backward.
2. the self-gripping jaws mechanism on electric tube expander according to claim 1, it is characterised in that it is described linkage seat (503) with
The back-moving spring (504) that the Automatic-clamping component can be pushed away forward is additionally provided between pedestal (1).
3. the self-gripping jaws mechanism on electric tube expander according to claim 2, it is characterised in that after the pedestal (1) includes
Seat board (101), fore beam (102) and the left support block (103) provided with back seat plate (101) and fore beam (102) both sides and the right side
Support block (104), between the left support block (103) and right support block (104) be provided be used for lay it is described linkage seat (503) and
It is available for mobile the first cavity (105) of linkage seat (503) and is used to the back-moving spring be installed afterwards positioned at the first cavity (105)
(504) the second cavity (106), and the width of second cavity (106) is less than the width of first cavity (105) to limit
Make the displacement of the linkage seat (503).
4. the self-gripping jaws mechanism on electric tube expander according to claim 3, it is characterised in that the back seat plate (101), preceding
The through hole passed through for the push rod (4), and the fore beam are equipped with seat board (102) and linkage seat (503) correspondence position
(102) through hole on is also available for the core pipe (502) to be connected through with the linkage seat (503).
5. the self-gripping jaws mechanism on electric tube expander according to claim 4, it is characterised in that the Automatic-clamping component is also
Including being located at the front end of fore beam (102) and thereon with the pushing block (505) that is connected of linkage seat (503), the pushing block (505)
Provided with being connected for the tube expansion (2) mounting hole that passes through, one end of the chuck (501) with the pushing block (505), and it is described before
Guide hole is further opened with seat board (102), the pushing block (505) is connected by connector through guide hole with the linkage seat (503)
So as to during linkage seat (503) motion pushing block (505) can be driven to move.
6. the self-gripping jaws mechanism on electric tube expander according to claim 1, it is characterised in that the front end of the swollen head (3)
For spherical shape, and its width is more than the internal diameter of the core pipe (502) and it is withstood on the end pipe of core pipe (502) when being moved rearwards
Core pipe (502) is driven to be moved rearwards on wall.
7. the self-gripping jaws mechanism on electric tube expander according to claim 1, it is characterised in that from it on the tube expansion (2)
Front end offers a plurality of gap along its length, and the length in gap makes its front end form polylith less than the length of tube expansion (2)
The clamping jaw (2011) of circumferential arrangement, the clamping jaw (2011) described in polylith form described clamping jaw portion (201), the chuck (501)
It can make the clamping jaw (2011) described in polylith close to each other when being moved to front end, pipe fitting (9) is clamped.
8. the self-gripping jaws mechanism on electric tube expander according to claim 1, it is characterised in that the push rod (4) is from described
The rear end of pedestal (1) is stretched out, and is additionally provided with what the driving push rod (4) moved forwards or backwards on the rear end of the pedestal (1)
Drive component, the drive component include oil pressure actuated motor (601) and driven by the oil pressure actuated motor (601) to rotate
First gear pair and second gear pair, the first gear is to including under intermeshing first gear (6021) and first
Gear (6022), the push rod (4) pass through between the first gear (6021) and the first lower gear (6022), and the oil pressure drives
Dynamic motor (601) can drive push rod (4) to move when driving the first gear to rotate.
9. the self-gripping jaws mechanism on electric tube expander according to claim 1, it is characterised in that the pedestal (1) is provided with
Tube expansion (2) described in two, the tube expansion (2) described in two are arranged in parallel.
10. hand-held electric tube expander, including frame (8), it is characterised in that the frame (8) is provided with as appointed in claim 1 to 9
The self-gripping jaws mechanism on electric tube expander described in meaning one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036907.3A CN107695217B (en) | 2017-10-30 | 2017-10-30 | Automatic clamping jaw mechanism on tube expander and handheld tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036907.3A CN107695217B (en) | 2017-10-30 | 2017-10-30 | Automatic clamping jaw mechanism on tube expander and handheld tube expander |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107695217A true CN107695217A (en) | 2018-02-16 |
| CN107695217B CN107695217B (en) | 2024-06-21 |
Family
ID=61177087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711036907.3A Active CN107695217B (en) | 2017-10-30 | 2017-10-30 | Automatic clamping jaw mechanism on tube expander and handheld tube expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107695217B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622784A (en) * | 2019-01-21 | 2019-04-16 | 奥美森智能装备股份有限公司 | Pipe expander |
| CN110369624A (en) * | 2019-08-26 | 2019-10-25 | 宁波奥克斯电气股份有限公司 | A kind of tube expansion firm banking |
| CN112170579A (en) * | 2020-09-10 | 2021-01-05 | 中山精达特克机械有限公司 | U tube forming machine |
| CN113210518A (en) * | 2021-05-25 | 2021-08-06 | 珠海格力智能装备有限公司 | Pipe expander |
| CN113547033A (en) * | 2021-07-16 | 2021-10-26 | 珠海格力智能装备有限公司 | Expansion pipe clamping device |
| CN116037579A (en) * | 2023-02-08 | 2023-05-02 | 珠海格力电器股份有限公司 | An automatic purging device, system and automatic purging method |
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| FR2259657A1 (en) * | 1974-02-06 | 1975-08-29 | Tridan Tool Et Machine Inc | Expander for ribbed heat exchanger tubes - has clamp jaws for one tube end, and rod with enlarged end to move through tube and widen it |
| US4196609A (en) * | 1977-10-28 | 1980-04-08 | Sugino Machine Limited | Tube expander |
| KR100978202B1 (en) * | 2010-06-15 | 2010-08-27 | 김남수 | Clamping apparatus for enlarging diameter of a heat exchange tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109622784A (en) * | 2019-01-21 | 2019-04-16 | 奥美森智能装备股份有限公司 | Pipe expander |
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| CN110369624B (en) * | 2019-08-26 | 2024-06-11 | 宁波奥克斯电气股份有限公司 | Expand tube unable adjustment base |
| CN112170579A (en) * | 2020-09-10 | 2021-01-05 | 中山精达特克机械有限公司 | U tube forming machine |
| CN113210518A (en) * | 2021-05-25 | 2021-08-06 | 珠海格力智能装备有限公司 | Pipe expander |
| CN113210518B (en) * | 2021-05-25 | 2023-02-17 | 珠海格力智能装备有限公司 | Pipe expander |
| CN113547033A (en) * | 2021-07-16 | 2021-10-26 | 珠海格力智能装备有限公司 | Expansion pipe clamping device |
| CN116037579A (en) * | 2023-02-08 | 2023-05-02 | 珠海格力电器股份有限公司 | An automatic purging device, system and automatic purging method |
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| CN107695217B (en) | 2024-06-21 |
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