CN107309287B - Combined hydraulic reducing machine - Google Patents
Combined hydraulic reducing machine Download PDFInfo
- Publication number
- CN107309287B CN107309287B CN201710674242.2A CN201710674242A CN107309287B CN 107309287 B CN107309287 B CN 107309287B CN 201710674242 A CN201710674242 A CN 201710674242A CN 107309287 B CN107309287 B CN 107309287B
- Authority
- CN
- China
- Prior art keywords
- die
- reducing
- diameter reducing
- primary
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/04—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/12—Die holders; Rotating dies
- B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Actuator (AREA)
Abstract
The invention provides a combined hydraulic reducing machine which comprises a frame, wherein a raw material clamping mechanism, a primary reducing mechanism, a secondary reducing mechanism and a raw material surface oil removing mechanism are arranged on the frame. The combined hydraulic reducing machine provided by the invention is mainly used as matched equipment for thread processing, can shrink the diameter of a steel bar thread processing part to the thread diameter to be processed, and can provide favorable conditions for the subsequent installation of nuts more smoothly by performing secondary diameter reduction treatment on the raw material end head in order to flatten the thread end head. The combined hydraulic reducing machine provided by the invention can be used as a single machine or can be matched with a production line for use.
Description
Technical Field
The invention relates to a combined hydraulic reducing machine.
Background
The existing hydraulic reducing machine is complex in structure, has a plurality of structural problems, cannot meet the production requirement, and is low in production efficiency.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art, the embodiment of the invention provides a combined hydraulic diameter reducer capable of completing secondary diameter reduction treatment. The technical scheme is as follows:
the invention provides a combined hydraulic reducing machine which comprises a frame and is characterized in that a raw material clamping mechanism, a primary reducing mechanism, a secondary reducing mechanism and a raw material surface oil removing mechanism are arranged on the frame;
the raw material clamping mechanism comprises a clamping die, a clamping hole is formed in the center of the clamping die, the clamping die is connected with a first power part to drive the clamping die to clamp the reinforced bar raw material extending into the clamping hole, an oil suction pipe is arranged on one side of the clamping hole, an oil suction port of the oil suction pipe is opposite to the clamping hole, and the oil suction pipe is connected with an oil suction air source;
the primary diameter reducing mechanism comprises a primary diameter reducing die, the primary diameter reducing die is connected with a primary diameter reducing hydraulic cylinder to drive the primary diameter reducing die to move forwards and backwards for a preset distance so that the primary diameter reducing die is close to/far away from a clamping die, the center of a clamping opening of the clamping die and the center of a diameter reducing opening of the primary diameter reducing die are always kept on the same axis, the primary diameter reducing hydraulic cylinder is a hollow piston rod hydraulic cylinder, the center of a piston rod of the hollow piston rod hydraulic cylinder and the center of the diameter reducing opening of the primary diameter reducing die are on the same axis, and a primary lubricating oil inlet is formed in the upper portion of the primary diameter reducing die
The secondary diameter reducing mechanism comprises a secondary diameter reducing hydraulic cylinder, a push rod is fixedly arranged on a piston rod of the secondary diameter reducing hydraulic cylinder, a secondary diameter reducing die is fixedly arranged at the end part of the push rod, the secondary diameter reducing die stretches into the piston rod of the primary diameter reducing hydraulic cylinder through the push rod to correspond to the primary diameter reducing die, the secondary diameter reducing hydraulic cylinder is used for driving the secondary diameter reducing die to be close to/far away from the primary diameter reducing die through the push rod, the center of a diameter reducing opening of the secondary diameter reducing die and the center of a diameter reducing opening of the primary diameter reducing die are always on the same axis, a secondary cooling lubricating oil inlet is formed in the upper part of one side of the secondary diameter reducing die, and an oil drain port is formed in the lower part of the secondary diameter reducing die;
the diameter of the reducing mouth of the secondary reducing die is smaller than that of the primary reducing die.
As the priority of the technical scheme, a piston rod of the primary reducing hydraulic cylinder is fixedly connected with one side of the secondary reducing hydraulic cylinder and a sliding block, the sliding block is arranged on a guide rail in a sliding mode, the guide rail is fixed through a guide rail support on a frame, and the primary reducing hydraulic cylinder is fixed through a hydraulic cylinder connecting shaft sleeve on the frame.
As the priority of the technical scheme, the clamping die comprises two corresponding locking half dies, the first power part is a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected with the two locking half dies through two pull rods, the two locking half dies are arranged in the guide sleeve, the connecting surface between the guide sleeve and the locking half dies is two inclined surfaces, and one side of each inclined surface, which is close to the pull rod, is gradually close to the corresponding inclined surface.
As the priority of the technical scheme, one side of the clamping die is provided with a clamping die detecting switch and a raw material in-place detecting switch, after the raw material in-place detecting switch detects raw material reinforcing steel bars, the clamping die is kept to clamp the reinforcing steel bar raw materials until the raw material reaches the end part of the primary diameter reduction die, and when the clamping die detecting switch detects that the clamping die clamps the raw material reinforcing steel bars, the primary diameter reduction die starts to work.
As a preference of the above technical solution, the first power part is a hollow piston rod hydraulic cylinder.
The combined hydraulic reducing machine provided by the invention is mainly used as matched equipment for thread processing, can shrink the diameter of a steel bar thread processing part to the thread diameter to be processed, and can provide favorable conditions for the subsequent installation of nuts more smoothly by performing secondary diameter reduction treatment on the raw material end head in order to flatten the thread end head. The combined hydraulic reducing machine provided by the invention can be used as a single machine or can be matched with a production line for use. 1 diameter reducing die is replaced according to the raw materials with different diameters.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a combined hydraulic reducing mill provided in this embodiment;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the raw material clamping mechanism provided in this embodiment;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a schematic diagram of the primary reducing mechanism and the secondary reducing mechanism;
FIG. 6 is a schematic view of a primary reducing mechanism;
FIG. 7 is a schematic diagram of a primary reducing hydraulic cylinder;
FIG. 8 is a schematic view of a secondary reducing mechanism;
fig. 9 is a schematic view of the reduced diameter portion installation.
FIG. 10 is a schematic diagram of a cooling and lubrication system installation structure;
FIG. 11 is a schematic diagram of a raw material surface degreasing mechanism;
FIG. 12 is a schematic view of a primary necking die;
fig. 13 is a schematic diagram of a secondary reducing die structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a combined hydraulic diameter reducer which comprises a raw material clamping mechanism 1, a raw material surface oil removing mechanism 2, a cooling and lubricating part 3, a hydraulic part 4, a primary diameter reducing mechanism 5, a secondary diameter reducing mechanism 6, an electric appliance part 7, a control system 8, a detection limiting part 9 and a guiding part 10.
The raw material clamping mechanism comprises a clamping die 1-4, a clamping hole is formed in the center of the clamping die, the clamping die is connected with a first power part to drive the clamping die to clamp a reinforced bar raw material which stretches into the clamping hole, the first power part is a hollow piston rod hydraulic cylinder 1-1, a raw material surface oil removing mechanism 2 is arranged on one side of the clamping hole, the raw material surface oil removing mechanism 2 comprises an oil suction pipe 2-3, an oil suction port of the oil suction pipe is opposite to the clamping hole, the oil suction pipe is connected with an oil suction air source through a connecting pipe 2-2 and an air source interface 2-1, and the oil suction pipe aims to remove an oil layer remained on the surface of the reduced raw material. The clamping die comprises two corresponding locking half dies, the first power part is a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected with the two locking half dies through two pull rods 1-6 and a clamping die connecting rod 1-7, the two locking half dies are arranged in a guide sleeve 1-5, the connecting surface between the guide sleeve and the locking half dies is two inclined surfaces, one side of each inclined surface, which is close to the pull rod, is gradually close to the corresponding inclined surface, and the raw material clamping mechanism is a movable unit and adjusts the opening size of the clamping die according to the diameter of raw materials. The clamping die is rectangular in shape, a 45-degree chamfer is machined at the position of the contact surface with the raw material, and a reverse ratchet is transversely machined at the 45-degree chamfer, so that a larger friction coefficient is generated after the raw material is clamped.
The primary diameter reducing mechanism comprises a primary diameter reducing die 5-1, wherein the primary diameter reducing die is in a convex cylinder shape and is in a composite structure. The outer body is of a carbon steel structure, the die is of a hard alloy structure, and the mounting mode is inlaid. The primary diameter reduction die is connected with a primary diameter reduction hydraulic cylinder 5-4 to drive the primary diameter reduction die to move forwards and backwards by a preset distance so as to enable the primary diameter reduction die to be close to/far away from a clamping die, the center of a clamping opening of the clamping die and the center of a diameter reduction opening of the primary diameter reduction die are on the same axis, the primary diameter reduction die 5-1 is connected with a piston rod of the primary diameter reduction hydraulic cylinder through a die mounting seat 5-2 and a push rod connecting seat 5-3, the primary diameter reduction hydraulic cylinder is a hollow piston rod hydraulic cylinder, the hollow center of a piston rod of the hollow piston rod hydraulic cylinder and the center of the diameter reduction opening of the primary diameter reduction die are on the same axis, and a primary lubrication oil inlet is formed in the upper part of the primary diameter reduction die;
the secondary diameter reducing mechanism comprises a secondary diameter reducing hydraulic cylinder 6-6, a piston rod of the secondary diameter reducing hydraulic cylinder is fixedly connected with a push rod 6-3 through a connecting pin shaft 6-5, a secondary diameter reducing die 6-1 is fixedly arranged at the end part of the push rod, the secondary diameter reducing die is in a convex cylinder shape, threads are machined on a small cylinder, and the structure is a compound type. The outer body is of a carbon steel structure, and the die is of a hard alloy structure. The installation mode is a threaded connection type. The secondary diameter reduction die is stretched into a piston rod of the primary diameter reduction hydraulic cylinder through a push rod to correspond to the primary diameter reduction die, a movable bearing sleeve 6-2 is arranged between the push rod and the hollow of the piston rod of the primary diameter reduction hydraulic cylinder, the movable bearing sleeve is arranged at bearing sleeve mounting positions 5-6 and 5-7 of the piston rod of the primary diameter reduction hydraulic cylinder, the secondary diameter reduction hydraulic cylinder is used for driving the secondary diameter reduction die to be close to/far away from the primary diameter reduction die through the push rod, the center of a diameter reduction opening of the secondary diameter reduction die and the center of a diameter reduction opening of the primary diameter reduction die are always on the same axis, a secondary lubricating oil inlet is arranged at the upper part of one side of the secondary diameter reduction die, an oil discharge outlet is arranged at the lower part of the secondary diameter reduction die,
the diameter of the reducing mouth of the secondary reducing die is smaller than that of the primary reducing die, and the primary reducing mechanism firstly reduces the rod body to the middle diameter of the thread, and then reduces the diameter of the reduced rod body to be smaller than the bottom diameter of the thread. In order to ensure that the piston rod of the hydraulic cylinder does not rotate during operation, a set of positioning guide system is added in the secondary diameter reduction part, and the guide system comprises: the piston rod of the primary reducing hydraulic cylinder is connected with one side of the secondary reducing hydraulic cylinder through a connecting flange 6-4 and a connecting flange 5-8 at the rear end of the piston rod of the primary reducing hydraulic cylinder, the sliding block is arranged on a guide rail 6-8 in a sliding manner, the guide rail is fixed through a guide rail support 6-9 on a frame, and the primary reducing hydraulic cylinder is fixed through a hydraulic cylinder connecting shaft sleeve 5-5 on the frame.
The primary lubrication oil inlet a, the secondary lubrication oil inlet b and the oil drain c are cooling lubrication part structures: adopts a cooling pump as power. The purpose is in order to reduce the coefficient of friction of mould and raw materials, better protection mould life.
One side of the clamping die is provided with a clamping die detecting switch 1-2 and a raw material in-place detecting switch 1-3, after the raw material in-place detecting switch detects the raw material reinforcing steel bar, the clamping die is kept to clamp the reinforcing steel bar raw material until the raw material reaches the end of the primary diameter reduction die, and when the clamping die detecting switch detects that the clamping die clamps the raw material reinforcing steel bar, the primary diameter reduction die starts to work.
The invention provides a combined hydraulic reducing machine which is mainly designed for steel bars with phi 16-phi 22mm, and the combined reducing mode not only improves the production efficiency, but also is smoother for the production of other working procedures. When raw materials enter from the hollow piston rod hydraulic cylinder 1-1, after the raw material in-place detection switch 1-3 detects raw material reinforcing steel bars, the clamping die is kept to clamp the reinforcing steel bar raw materials until the raw materials reach the end part of the primary diameter reduction die, and when the clamping die detection switch detects that the clamping die clamps the raw material reinforcing steel bars, the primary diameter reduction die starts to work. When the primary diameter reducing die reaches the position, the secondary diameter reducing die starts working forwards, after the action is finished, the secondary diameter reducing die returns to the initial position, and after the primary diameter reducing die returns, the clamping part is loosened. When the raw materials withdraw, the raw material surface oil removing mechanism 2 also works simultaneously, and the oil removing time is set according to the raw material withdrawing time.
The combined hydraulic reducing machine provided by the invention is mainly used as matched equipment for thread processing, can shrink the diameter of a steel bar thread processing part to the thread diameter to be processed, and can provide favorable conditions for the subsequent installation of nuts more smoothly by performing secondary diameter reduction treatment on the raw material end head in order to flatten the thread end head. The combined hydraulic reducing machine provided by the invention can be used as a single machine or can be matched with a production line for use. 1 diameter reducing die is replaced according to the raw materials with different diameters.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The combined hydraulic reducing machine comprises a frame and is characterized in that a raw material clamping mechanism, a primary reducing mechanism, a secondary reducing mechanism and a raw material surface oil removing mechanism are arranged on the frame;
the raw material clamping mechanism comprises a clamping die, a clamping hole is formed in the center of the clamping die, the clamping die is connected with a first power part to drive the clamping die to clamp the reinforced bar raw material extending into the clamping hole, an oil suction pipe is arranged on one side of the clamping hole, an oil suction port of the oil suction pipe is opposite to the clamping hole, and the oil suction pipe is connected with an oil suction air source;
the primary diameter reducing mechanism comprises a primary diameter reducing die, the primary diameter reducing die is connected with a primary diameter reducing hydraulic cylinder to drive the primary diameter reducing die to move forwards and backwards for a preset distance so as to enable the primary diameter reducing die to be close to/far away from a clamping die, the center of a clamping opening of the clamping die and the center of a diameter reducing opening of the primary diameter reducing die are always kept on the same axis, the primary diameter reducing hydraulic cylinder is a hollow piston rod hydraulic cylinder, the center of a piston rod of the hollow piston rod hydraulic cylinder and the center of the diameter reducing opening of the primary diameter reducing die are on the same axis, and a primary lubricating oil inlet is formed in the upper part of the primary diameter reducing die;
the secondary diameter reducing mechanism comprises a secondary diameter reducing hydraulic cylinder, a push rod is fixedly arranged on a piston rod of the secondary diameter reducing hydraulic cylinder, a secondary diameter reducing die is fixedly arranged at the end part of the push rod, the secondary diameter reducing die stretches into the piston rod of the primary diameter reducing hydraulic cylinder through the push rod to correspond to the primary diameter reducing die, the secondary diameter reducing hydraulic cylinder is used for driving the secondary diameter reducing die to be close to/far away from the primary diameter reducing die through the push rod, the center of a diameter reducing opening of the secondary diameter reducing die and the center of a diameter reducing opening of the primary diameter reducing die are always on the same axis, a secondary lubricating oil inlet is formed in the upper part of one side of the secondary diameter reducing die, and an oil drain port is formed in the lower part of the secondary diameter reducing die.
2. The combined hydraulic reducing machine according to claim 1, wherein a piston rod of the primary reducing hydraulic cylinder is fixedly connected with a slide block on one side of the secondary reducing hydraulic cylinder, the slide block is arranged on a guide rail in a sliding manner, the guide rail is fixed through a guide rail support on a frame, and the primary reducing hydraulic cylinder is fixed through a hydraulic cylinder connecting shaft sleeve on the frame.
3. The combined hydraulic reducing mill according to claim 1, wherein the clamping die comprises two corresponding locking half dies, the first power part is a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected with the two locking half dies through two pull rods, the two locking half dies are arranged in a guide sleeve, a connecting surface between the guide sleeve and the locking half dies is two inclined surfaces, and one side of the inclined surface, which is close to the pull rods, is gradually close to the guide sleeve.
4. The combined hydraulic reducing machine according to claim 1, wherein a clamping die detecting switch and a raw material in-place detecting switch are arranged on one side of the clamping die, after the raw material in-place detecting switch detects the raw material reinforcing steel bar, clamping delay of the clamping die is reserved until the raw material reaches the end of the primary reducing die, the raw material is clamped by the clamping die, and when the clamping die detecting switch detects that the raw material reinforcing steel bar is clamped by the clamping die, the primary reducing die starts to work.
5. A combined hydraulic reducing mill according to claim 1 or 3, wherein the first power section is a hollow piston rod hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674242.2A CN107309287B (en) | 2017-08-09 | 2017-08-09 | Combined hydraulic reducing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674242.2A CN107309287B (en) | 2017-08-09 | 2017-08-09 | Combined hydraulic reducing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107309287A CN107309287A (en) | 2017-11-03 |
| CN107309287B true CN107309287B (en) | 2023-09-12 |
Family
ID=60170667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710674242.2A Active CN107309287B (en) | 2017-08-09 | 2017-08-09 | Combined hydraulic reducing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107309287B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122687A (en) * | 2020-08-03 | 2020-12-25 | 神东天隆集团矿山支护材料有限责任公司 | Anchor cable machine with automatic positioning cutting function |
| CN117772827A (en) * | 2022-12-10 | 2024-03-29 | 周益丰 | Reinforcing steel bar diameter reducing machine and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637027Y (en) * | 2003-08-01 | 2004-09-01 | 王春廷 | Extrusion equipment for making pipe end changing size |
| KR20100060773A (en) * | 2008-11-28 | 2010-06-07 | (주)이랜드건설 | The reducing machine for metal pipe and its reduced pipe |
| CN205816585U (en) * | 2016-06-14 | 2016-12-21 | 上海瓦姆石油天然气管业有限公司 | A kind of automatic seaming device for steel pipe undergauge |
| CN207086581U (en) * | 2017-08-09 | 2018-03-13 | 河北晓进机械制造股份有限公司 | A kind of combination hydraulic size reducing machine |
-
2017
- 2017-08-09 CN CN201710674242.2A patent/CN107309287B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637027Y (en) * | 2003-08-01 | 2004-09-01 | 王春廷 | Extrusion equipment for making pipe end changing size |
| KR20100060773A (en) * | 2008-11-28 | 2010-06-07 | (주)이랜드건설 | The reducing machine for metal pipe and its reduced pipe |
| CN205816585U (en) * | 2016-06-14 | 2016-12-21 | 上海瓦姆石油天然气管业有限公司 | A kind of automatic seaming device for steel pipe undergauge |
| CN207086581U (en) * | 2017-08-09 | 2018-03-13 | 河北晓进机械制造股份有限公司 | A kind of combination hydraulic size reducing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107309287A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204524936U (en) | The energy-conservation frock of a kind of enlarging on bench drill | |
| CN109500116B (en) | Reducing pipe stretcher | |
| CN202655396U (en) | Hydraulic stretching straightening machine | |
| CN207414783U (en) | A kind of hard tube punching brill milling all-in-one machine | |
| CN108856493A (en) | A kind of punching and flanging machine | |
| CN107309287B (en) | Combined hydraulic reducing machine | |
| CN212664664U (en) | Punching equipment for hollow pipe machining | |
| CN106312645B (en) | A kind of mechanical processing platform for tubulose steel billet | |
| CN101357376A (en) | Novel aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold | |
| CN100369690C (en) | Flanging arrangement for wall hole of thin metal pipe | |
| CN110802241B (en) | High-efficient high pressure closes Jin Gangguan welding groove processing equipment | |
| CN2928301Y (en) | Mold group device for pipe bender | |
| CN211804897U (en) | Full-automatic horizontal band sawing machine's saw chinese formula clamping device | |
| CN201659219U (en) | Wedge-shaped telescopic clamping device of aluminium alloy profile | |
| CN204657186U (en) | A kind of steel pipe bender | |
| CN103737354A (en) | Clamp for pipe cutting machine | |
| CN201960465U (en) | Power-driven hydraulic bench vice | |
| CN107442587A (en) | A kind of seamless steel pipe processing drawbench | |
| CN207086581U (en) | A kind of combination hydraulic size reducing machine | |
| CN211248017U (en) | Automatic flaring equipment for T-shaped tee joint | |
| CN205571622U (en) | Spiral bevel gear adds clamping apparatus | |
| CN211840470U (en) | High-efficient screw rod tapping device | |
| CN116984541A (en) | Automatic forging device and forging process for metal door and window rod forgings | |
| CN205520672U (en) | A turn over rotary die group that is used for connecting rod formula pay -off assembly line | |
| CN203030695U (en) | Pipe part flanging device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |