CN111633133A - Pipe expanding device for bicycle handlebar production and use method thereof - Google Patents
Pipe expanding device for bicycle handlebar production and use method thereof Download PDFInfo
- Publication number
- CN111633133A CN111633133A CN202010530407.0A CN202010530407A CN111633133A CN 111633133 A CN111633133 A CN 111633133A CN 202010530407 A CN202010530407 A CN 202010530407A CN 111633133 A CN111633133 A CN 111633133A
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- Prior art keywords
- bicycle handlebar
- tube
- seat
- plate
- bicycle
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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
- 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
-
- 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
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The invention discloses a pipe expanding device for bicycle handlebar production, which comprises a base and a cross frame arranged at the upper end of the base, wherein a piston rod at the top of a hydraulic cylinder is connected with a lifting seat, two ends of the lifting seat are connected in the cross frame in a sliding manner, a pipe expanding head is arranged in the middle of the upper end of the lifting seat, two sides of the lower end of the cross frame are connected with auxiliary protective devices through L-shaped connecting frames, two sides of the lower end of the cross frame are connected with the L-shaped connecting frames through vertical polished rods, a fixed groove at the lower end of a fixed seat is used for inserting the upper end of a bicycle handlebar pipe fitting, and the bottom of a vertical plate is connected with. The invention is convenient for clamping and feeding the bicycle handlebar pipe fitting; the bicycle handlebar pipe fitting can be prevented from inclining, and the vertical state of the bicycle handlebar pipe fitting is kept; the lower end of the bicycle handlebar pipe fitting is just above the stripper plate, and the expanding pipe head can be smoothly separated from the interior of the lower end of the bicycle handlebar pipe fitting under the action of the stripper plate.
Description
Technical Field
The invention relates to the technical field of pipe expanding devices, in particular to a pipe expanding device for bicycle handlebar production and a using method thereof.
Background
The bicycle handlebar is one of essential parts of a bicycle and is generally made of a tube material, the bicycle handlebar needs to be expanded when in production and processing, the expansion tube is formed by inserting a lifting expansion tube head into a bicycle handlebar tube fitting through a tube expansion device to expand the bicycle handlebar tube fitting, then drawing out the lifting expansion tube head, the diameter of the tube fitting can be expanded, the method adopted by the expansion tube of the existing tube fitting generally adopts the steps of manually inserting the expansion tube head into a metal tube to expand the metal tube, and then drawing out the expansion tube head, the labor intensity is high, the production efficiency is low, and the expansion rod and the tube fitting are difficult to smoothly take down due to the tight sleeve joint of the expansion rod and the tube fitting when the expansion rod is drawn out, so that the expansion tube device for bicycle handlebar production and the using method thereof are provided.
Disclosure of Invention
The present invention is directed to an expanding tube device for bicycle handlebar and a method for using the same to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a pipe expanding device for bicycle handlebar production comprises a base and a cross frame arranged at the upper end of the base, wherein a hydraulic cylinder is arranged in a groove in the middle of the upper end of the base, a piston rod at the top of the hydraulic cylinder is connected with a lifting seat, two ends of the lifting seat are connected in the cross frame in a sliding manner, a pipe expanding head is arranged in the middle of the upper end of the lifting seat, two sides of the lower end of the cross frame are connected with an auxiliary protection device through an L-shaped connecting frame, two sides of the lower end of the cross frame are connected with the L-shaped connecting frame through a vertical polished rod, the vertical polished rod is sleeved with a sleeve, the vertical polished rod is further sleeved with a first spring abutting against the upper end of the sleeve, a fixed seat is connected between the two groups of sleeves through a connecting rod, a fixed groove at the lower end of the fixed seat is, the bottom of the two groups of L-shaped connecting frames is connected with a vertical plate, and the bottom of the vertical plate is connected with a stripping device clamped on the outer side of the pipe expanding head.
Preferably, the two ends of the lifting seat are provided with rollers which are connected in a sliding manner in corresponding limiting sliding grooves in the inner side wall of the cross frame.
Preferably, the auxiliary protection device comprises a limiting cylinder, a through hole is formed in the limiting cylinder, side wall grooves are formed in two sides of the upper portion of the through hole, and arc-shaped clamping plates are arranged in the side wall grooves.
Preferably, the T-shaped pull rods on two sides of the limiting cylinder extend into the side wall groove and then are connected to the middle of the side edge of the arc-shaped clamping plate, the lower portion of the side edge of the arc-shaped clamping plate is further connected with a second spring, and the L-shaped sliding connection seats on the upper end and the lower end of the arc-shaped clamping plate are connected into sliding grooves on the upper end and the lower end of the side wall groove in a sliding mode.
Preferably, the material removing device comprises a rotating plate, the rotating plate is movably connected to the connecting seat on the side edge of the lower portion of the vertical plate through a pin shaft, the bottom of the rotating plate is provided with a material removing plate integrally formed with the rotating plate, a cylindrical protrusion is arranged on the inner side of the upper portion of the rotating plate, and a third spring connected to the side edge of the connecting seat is sleeved on the outer side of the cylindrical protrusion.
A use method of a pipe expanding device for bicycle handlebar production specifically comprises the following steps:
s1, the upper end of the bicycle handlebar pipe fitting penetrates through the through hole in the limiting cylinder until the upper end of the bicycle handlebar pipe fitting is inserted into the fixing groove at the lower end of the fixing seat;
s2, under the action of the first spring, the fixed seat moves downwards, so that the bicycle handlebar pipe fitting moves downwards until the pipe expansion head is inserted into the lower end of the bicycle handlebar pipe fitting;
s3, extending a piston rod at the top of the hydraulic cylinder to enable the lifting seat to drive the tube expanding head to move upwards, enabling the tube expanding head to be inserted into the inner part of the lower end of the bicycle handlebar tube fitting, and accordingly forming tube expanding operation on the bicycle handlebar tube fitting;
s4, under the elastic action of the third spring, the rotating plate rotates circularly by the pin shaft, the stripper plate at the bottom of the rotating plate is tightly attached to the side wall of the expanding pipe head, then the piston rod at the top of the hydraulic cylinder retracts, the lifting seat drives the expanding pipe head to move downwards, at the moment, the lower end of the bicycle handlebar pipe fitting is just positioned above the stripper plate, and the expanding pipe head can be smoothly separated from the interior of the lower end of the bicycle handlebar pipe fitting under the action of the stripper plate.
Compared with the prior art, the invention has the beneficial effects that: the invention is convenient for clamping and feeding the bicycle handlebar pipe fitting; the bicycle handlebar pipe fitting can be prevented from inclining, and the vertical state of the bicycle handlebar pipe fitting is kept; under the elastic force effect of third spring for the rotating plate uses the round pin axle to make circular rotation, makes the stripper plate of rotating plate bottom tightly hug closely the lateral wall of rising the stub bar, and the piston rod at pneumatic cylinder top contracts afterwards, makes the lift seat drive rising the stub bar and move down, and at this moment, the lower extreme of bicycle handlebar pipe fitting just in time is located the top of stripper plate, under the effect of stripper plate, can make rising the stub bar take off from the inside of bicycle handlebar pipe fitting lower extreme smoothly.
Drawings
FIG. 1 is a schematic side sectional view of the present invention as a whole;
FIG. 2 is a side cross-sectional view of the bicycle handlebar tube assembly of the present invention;
FIG. 3 is a schematic view of a connection structure of the auxiliary protection device and the fixing base according to the present invention;
FIG. 4 is a schematic side sectional view of the auxiliary guard of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 2 according to the present invention.
In the figure: the device comprises a base 1, a groove 2, a hydraulic cylinder 3, a piston rod 4, a roller 5, a lifting seat 6, a limiting sliding chute 7, a cross frame 8, a pipe expanding head 9, a connecting frame 10L, an auxiliary protection device 11, a limiting cylinder 110, a through hole 111, an arc-shaped clamping plate 112, a second spring 113, a pull rod 114T, a sliding connecting seat 115L, a sliding connecting groove 116, a side wall groove 117, a vertical plate 12, a first spring 13, a fixed seat 14, a rod 15T, a vertical polish rod 16, a connecting rod 17, a bicycle handlebar pipe fitting 18, a rotating plate 19, a stripper plate 20, a connecting seat 21, a pin shaft 22, a cylindrical protrusion 23, a third spring 24, a sleeve 25 and a fixed groove 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a tube expansion device for bicycle handlebar production comprises a base 1 and a cross frame 8 arranged at the upper end of the base 1, wherein a hydraulic cylinder 3 is arranged in a groove 2 in the middle of the upper end of the base 1, a piston rod 4 at the top of the hydraulic cylinder 3 is connected with a lifting seat 6, two ends of the lifting seat 6 are connected in the cross frame 8 in a sliding manner, a tube expansion head 9 is arranged in the middle of the upper end of the lifting seat 6, two sides of the lower end of the cross frame 8 are connected with an auxiliary protection device 11 through an L-shaped connecting frame 10, two sides of the lower end of the cross frame 8 are connected with the L-shaped connecting frame 10 through vertical polish rods 16, sleeves 25 are sleeved on the vertical polish rods 16, first springs 13 abutting against the upper ends of the sleeves 25 are further sleeved on the vertical polish rods 16, a fixing seat 14 is connected between the two groups of sleeves 25 through a connecting rod 17, and a, the T-shaped rod 15 at the top of the cross frame 8 penetrates through the cross frame 8 and then is connected to the upper end of the fixing seat 14, the bottom of the two groups of L-shaped connecting frames 10 is connected with vertical plates 12, and the bottom of each vertical plate 12 is connected with a material stripping device clamped on the outer side of the tube expansion head 9.
Specifically, the rollers 5 are installed at two ends of the lifting seat 6, and the rollers 5 are slidably connected in the corresponding limiting sliding grooves 7 on the inner side wall of the cross frame 8.
Specifically, the auxiliary protection device 11 includes a limiting cylinder 110, a through hole 111 is provided in the limiting cylinder 110, side wall grooves 117 are provided on both sides of the upper portion of the through hole 111, and arc-shaped clamping plates 112 are provided in the side wall grooves 117.
Specifically, the T-shaped pull rods 114 at two sides of the limiting cylinder 110 extend into the side wall groove 117 and then are connected to the middle part of the side edge of the arc-shaped clamping plate 112, the lower part of the side edge of the arc-shaped clamping plate 112 is also connected with a second spring 113, and the L-shaped sliding connection seats 115 at the upper end and the lower end of the arc-shaped clamping plate 112 are slidably connected into the sliding grooves 116 at the upper end and the lower end of the side wall groove 117;
after the bicycle handle bar pipe member 18 passes through the through hole 111, the two sets of arc-shaped clamping plates 112 are tightly clamped on the side of the bicycle handle bar pipe member 18 under the elastic force of the second spring 113, so that the bicycle handle bar pipe member 18 can be prevented from being inclined, and the vertical state of the bicycle handle bar pipe member 18 can be maintained.
Specifically, the stripping device comprises a rotating plate 19, the rotating plate 19 is movably connected to a connecting seat 21 on the side edge of the lower portion of the vertical plate 12 through a pin shaft 22, a stripping plate 20 integrally formed with the rotating plate 19 is arranged at the bottom of the rotating plate 19, a cylindrical protrusion 23 is arranged on the inner side of the upper portion of the rotating plate 19, and a third spring 24 connected to the side edge of the connecting seat 21 is sleeved on the outer side of the cylindrical protrusion 23.
A use method of a pipe expanding device for bicycle handlebar production specifically comprises the following steps:
s1, the upper end of the bicycle handlebar tube member 18 is inserted through the through hole 111 inside the limiting cylinder 110 until the upper end of the bicycle handlebar tube member 18 is inserted into the fixing groove 26 at the lower end of the fixing seat 14;
s2, under the action of the first spring 13, the fixing seat 14 moves downwards, so that the bicycle handlebar tube member 18 moves downwards until the tube expanding head 9 is inserted into the lower end of the bicycle handlebar tube member 18;
s3, extending the piston rod 4 on the top of the hydraulic cylinder 3, so that the lifting seat 6 drives the tube expanding head 9 to move upwards, and the tube expanding head 9 is inserted into the lower end of the bicycle handlebar tube fitting 18, thereby forming tube expanding operation on the bicycle handlebar tube fitting 18;
s4, under the action of the elastic force of the third spring 24, the rotating plate 19 rotates circularly around the pin 22, so that the stripper plate 20 at the bottom of the rotating plate 19 is tightly attached to the side wall of the pipe expanding head 9, and then the piston rod 4 at the top of the hydraulic cylinder 3 retracts, so that the lifting seat 6 drives the pipe expanding head 9 to move downwards, at this time, the lower end of the bicycle handlebar pipe fitting 18 is just above the stripper plate 20, and the pipe expanding head 9 can be smoothly stripped from the inside of the lower end of the bicycle handlebar pipe fitting 18 under the action of the stripper plate 20.
In summary, compared with the prior art, the upper end of the bicycle handle bar tube 18 is inserted into the fixing groove 26 at the lower end of the fixing seat 14 by passing the upper end of the bicycle handle bar tube 18 through the through hole 111 inside the limiting cylinder 110; under the action of the first spring 13, the fixing seat 14 moves downwards, so that the bicycle handlebar tube member 18 moves downwards until the tube expanding head 9 is inserted into the lower end of the bicycle handlebar tube member 18, and the bicycle handlebar tube member 18 is convenient to clamp and feed;
after the bicycle handlebar tube member 18 passes through the through hole 111, under the elastic force of the second spring 113, the two sets of arc-shaped clamping plates 112 are tightly clamped on the side of the bicycle handlebar tube member 18, so that the bicycle handlebar tube member 18 can be prevented from being inclined, and the vertical state of the bicycle handlebar tube member 18 can be kept;
under the elastic force of the third spring 24, the rotating plate 19 rotates circularly around the pin 22, the stripper plate 20 at the bottom of the rotating plate 19 is tightly attached to the side wall of the tube expanding head 9, then the piston rod 4 at the top of the hydraulic cylinder 3 retracts, so that the lifting seat 6 drives the tube expanding head 9 to move downwards, at this time, the lower end of the bicycle handlebar tube 18 is just above the stripper plate 20, and the tube expanding head 9 can be smoothly separated from the inside of the lower end of the bicycle handlebar tube 18 under the action of the stripper plate 20.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a tub device rises for production of bicycle handlebar, includes base (1) and sets up in crossbearer (8) of base (1) upper end, its characterized in that: the bicycle handlebar tube is characterized in that a hydraulic cylinder (3) is arranged in a groove (2) in the middle of the upper end of the base (1), a piston rod (4) at the top of the hydraulic cylinder (3) is connected with a lifting seat (6), two ends of the lifting seat (6) are connected in a sliding manner in a cross frame (8), a tube expanding head (9) is arranged in the middle of the upper end of the lifting seat (6), two sides of the lower end of the cross frame (8) are connected with an auxiliary protection device (11) through L-shaped connecting frames (10), two sides of the lower end of the cross frame (8) are connected with the L-shaped connecting frames (10) through vertical polished rods (16), sleeves (25) are sleeved on the vertical polished rods (16), first springs (13) abutting against the upper ends of the sleeves (25) are further sleeved on the vertical polished rods (16), a fixing seat (14) is connected between the two groups of sleeves (25) through connecting rods (17), and a fixing groove (26) at, t-shaped rods (15) at the top of the transverse frame (8) penetrate through the transverse frame (8) and then are connected to the upper end of the fixing seat (14), the bottoms of the L-shaped connecting frames (10) are connected with vertical plates (12), and the bottoms of the vertical plates (12) are connected with stripping devices clamped on the outer sides of the pipe expanding heads (9).
2. The tube expanding device for bicycle handlebar production according to claim 1, wherein: the two ends of the lifting seat (6) are provided with rollers (5), and the rollers (5) are connected in sliding mode in corresponding limiting sliding grooves (7) on the inner side wall of the cross frame (8).
3. The tube expanding device for bicycle handlebar production according to claim 1, wherein: the auxiliary protection device (11) comprises a limiting cylinder (110), a through hole (111) is formed in the limiting cylinder (110), side wall grooves (117) are formed in two sides of the upper portion of the through hole (111), and arc-shaped clamping plates (112) are arranged in the side wall grooves (117).
4. The tube expanding device for bicycle handlebar production according to claim 3, wherein: t-shaped pull rods (114) on two sides of the limiting barrel (110) extend into the side wall groove (117) and then are connected to the middle of the side edge of the arc-shaped clamping plate (112), a second spring (113) is further connected to the lower portion of the side edge of the arc-shaped clamping plate (112), and L-shaped sliding connection seats (115) at the upper end and the lower end of the arc-shaped clamping plate (112) are connected into sliding grooves (116) at the upper end and the lower end of the side wall groove (117) in a sliding mode.
5. The tube expanding device for bicycle handlebar production according to claim 1, wherein: the stripping device comprises a rotating plate (19), the rotating plate (19) is movably connected to a connecting seat (21) on the side edge of the lower portion of the vertical plate (12) through a pin shaft (22), a stripping plate (20) integrally formed with the rotating plate (19) is arranged at the bottom of the rotating plate (19), a cylindrical protrusion (23) is arranged on the inner side of the upper portion of the rotating plate (19), and a third spring (24) connected to the side edge of the connecting seat (21) is sleeved on the outer side of the cylindrical protrusion (23).
6. The use of the tube expanding device for bicycle handlebar production of claim 1, wherein: the method specifically comprises the following steps:
s1, the upper end of the bicycle handle pipe fitting (18) passes through the through hole (111) in the limiting cylinder (110) until the upper end of the bicycle handle pipe fitting (18) is inserted into the fixing groove (26) at the lower end of the fixing seat (14);
s2, under the action of the first spring (13), the fixed seat (14) moves downwards, so that the bicycle handlebar tube part (18) moves downwards until the pipe expanding head (9) is inserted into the lower end of the bicycle handlebar tube part (18);
s3, extending a piston rod (4) at the top of the hydraulic cylinder (3) to enable the lifting seat (6) to drive the tube expanding head (9) to move upwards, enabling the tube expanding head (9) to be inserted into the inner part of the lower end of the bicycle handlebar tube fitting (18), and accordingly forming tube expanding operation on the bicycle handlebar tube fitting (18);
s4, under the elastic force action of the third spring (24), the rotating plate (19) rotates circularly by the pin shaft (22), the stripper plate (20) at the bottom of the rotating plate (19) is tightly attached to the side wall of the tube expanding head (9), then the piston rod (4) at the top of the hydraulic cylinder (3) retracts, so that the lifting seat (6) drives the tube expanding head (9) to move downwards, at the moment, the lower end of the bicycle handlebar tube fitting (18) is just above the stripper plate (20), and under the action of the stripper plate (20), the tube expanding head (9) can be smoothly stripped from the inside of the lower end of the bicycle handlebar tube fitting (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530407.0A CN111633133A (en) | 2020-06-11 | 2020-06-11 | Pipe expanding device for bicycle handlebar production and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530407.0A CN111633133A (en) | 2020-06-11 | 2020-06-11 | Pipe expanding device for bicycle handlebar production and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111633133A true CN111633133A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010530407.0A Pending CN111633133A (en) | 2020-06-11 | 2020-06-11 | Pipe expanding device for bicycle handlebar production and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111633133A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07178479A (en) * | 1993-12-21 | 1995-07-18 | Sango Co Ltd | Tube expanding device |
| JP2009142856A (en) * | 2007-12-13 | 2009-07-02 | Showa Corp | Tube expanding method and apparatus of damper tube |
| CN204953708U (en) * | 2015-09-22 | 2016-01-13 | 江西江铃底盘股份有限公司 | Automobile axle housing tube shaping flaring mould |
| CN105251897A (en) * | 2015-12-01 | 2016-01-20 | 江西江铃底盘股份有限公司 | Flaring die capable of simultaneously flaring two ends of two casing pipes of automobile front axle and machining technology of flaring die |
| CN205629135U (en) * | 2016-05-26 | 2016-10-12 | 王玲玲 | Novel hollow tube expanding die |
| CN205996035U (en) * | 2016-08-31 | 2017-03-08 | 陕西汽车集团有限责任公司 | A kind of diel of rear axle casing of electric vehicle sleeve pipe flare formation |
| CN107999645A (en) * | 2017-12-01 | 2018-05-08 | 苏州丁点精工科技有限公司 | A kind of tube expander engaging device |
| CN208050769U (en) * | 2017-07-14 | 2018-11-06 | 上海沪渝实业有限公司 | The swollen type equipment of automobile-used special pipe |
| CN208991612U (en) * | 2018-09-10 | 2019-06-18 | 宁波玛士达智能装备有限公司 | A kind of horizontal type tube expanding machine |
-
2020
- 2020-06-11 CN CN202010530407.0A patent/CN111633133A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07178479A (en) * | 1993-12-21 | 1995-07-18 | Sango Co Ltd | Tube expanding device |
| JP2009142856A (en) * | 2007-12-13 | 2009-07-02 | Showa Corp | Tube expanding method and apparatus of damper tube |
| CN204953708U (en) * | 2015-09-22 | 2016-01-13 | 江西江铃底盘股份有限公司 | Automobile axle housing tube shaping flaring mould |
| CN105251897A (en) * | 2015-12-01 | 2016-01-20 | 江西江铃底盘股份有限公司 | Flaring die capable of simultaneously flaring two ends of two casing pipes of automobile front axle and machining technology of flaring die |
| CN205629135U (en) * | 2016-05-26 | 2016-10-12 | 王玲玲 | Novel hollow tube expanding die |
| CN205996035U (en) * | 2016-08-31 | 2017-03-08 | 陕西汽车集团有限责任公司 | A kind of diel of rear axle casing of electric vehicle sleeve pipe flare formation |
| CN208050769U (en) * | 2017-07-14 | 2018-11-06 | 上海沪渝实业有限公司 | The swollen type equipment of automobile-used special pipe |
| CN107999645A (en) * | 2017-12-01 | 2018-05-08 | 苏州丁点精工科技有限公司 | A kind of tube expander engaging device |
| CN208991612U (en) * | 2018-09-10 | 2019-06-18 | 宁波玛士达智能装备有限公司 | A kind of horizontal type tube expanding machine |
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Application publication date: 20200908 |
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