CN109465662A - A kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control - Google Patents
A kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control Download PDFInfo
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- CN109465662A CN109465662A CN201811553039.0A CN201811553039A CN109465662A CN 109465662 A CN109465662 A CN 109465662A CN 201811553039 A CN201811553039 A CN 201811553039A CN 109465662 A CN109465662 A CN 109465662A
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- China
- Prior art keywords
- hydraulic cylinder
- oil hydraulic
- central axis
- clamping jaw
- pipe
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
-
- 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
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
-
- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The present invention introduces a kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control, including support baseboard, it is inlaid with bearing holder (housing, cover) on the vertical plane of support baseboard, bearing is installed in bearing holder (housing, cover), one end of central axis is connected with bearing, and the other end of central axis is fixedly connected with runing rest；There are the channels for drawing pipe in central axis, set that there are two for installing the mounting hole of clamping jaw on center shaft；The clamping jaw is two and is respectively arranged on central axis inner wall, right side, and left and right oil hydraulic cylinder is separately installed on runing rest, and the left oil hydraulic cylinder and right oil hydraulic cylinder drive corresponding clamping jaw to act respectively.The present invention can be automatically performed clamping, overturning to copper pipe, so that cleaning more convenient, can be carried out efficiently, be conducive to improve production efficiency, and control precision is higher, due to accurately being manipulated using hydraulic cylinder control and mate gear transmission, the overturning of copper pipe is enabled to accurately, in place.
Description
Technical field
The present invention relates to the milling face equipment of high-precision copper pipe, specially a kind of high-precision copper pipe milling based on hydraulic cylinder control
Face automatic turning device belongs to copper pipe processing technical field.
Background technique
During making high-precision copper pipe, draw copper base pipe after cooling by melting, mold, it is also necessary to carry out into
The milling surface treatment of one step, so that the oxide skin of copper pipe surface is got rid of, so that copper pipe surface is more smooth.Now milled at present
When surface treatment, it is that copper pipe is transported on the platform of milling face by transport mechanism, is then handled from bottom and top, due to every
Secondary milling can only handle the arc surface of the general one third in bottom and top, therefore during milling face, it is also necessary to by copper pipe into
Row overturning, the then other side of milling again.At present when being overturn to copper pipe, due to lacking dedicated equipment, only
Can be by operator's spanner manual overturning, this mode of operation is not only very laborious but also very inconvenient, needs long-term personnel
Fixation is on duty, causes the efficiency of entire production process relatively low.
Summary of the invention
For above-mentioned deficiency in the prior art, it is a primary object of the present invention to solve now at present in the milling for carrying out copper pipe
When surface treatment, the laborious and time consuming problem of the mode of manual overturning, and introduce a kind of without artificial on duty based on hydraulic cylinder control
The high-precision copper pipe of system mills face automatic turning device.
Technical solution of the present invention: a kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control, it is special
Sign is, including support baseboard, and the support baseboard is L-type structure, and bearing holder (housing, cover), institute are inlaid on the vertical plane of support baseboard
It states bearing holder (housing, cover) to be fixed on support baseboard, bearing is installed in the bearing holder (housing, cover), one end of central axis is connected with bearing, center
The other end of axis is fixedly connected after passing through the bearing with runing rest；The central axis is cylindrical shape, in central axis
There are the channels for drawing pipe, and the one end for being connected to runing rest on center shaft opens up that there are two for installing clamping jaw
Mounting hole；The clamping jaw is arc-shaped structure, is equipped with the anti-slop serrations being distributed counterclockwise in the inner wall of clamping jaw, the clamping jaw is two
Left and right side that is a and being respectively arranged on central axis inner wall, the runing rest are disc-shape, are pacified in the left side of runing rest
Equipped with left oil hydraulic cylinder, right oil hydraulic cylinder is installed on the right side of runing rest, the output end of the left oil hydraulic cylinder passes through on the left of central axis
Mounting hole after be connected and fixed with the clamping jaw in left side, the output end of the right oil hydraulic cylinder pass through after the mounting hole on the right side of central axis with
The clamping jaw on right side is connected and fixed, and the left oil hydraulic cylinder and right oil hydraulic cylinder drive corresponding clamping jaw to act respectively；In the central axis
Middle part be also cased with transmission gear, the transmission gear and central axis are keyed, be engaged with rack on the outside of the transmission gear,
The rack gear is mounted in slideway, and the slideway is set in fixed cylinder seat, and the side of the fixed cylinder seat is weldingly fixed on support
On bottom plate, range-adjustable hydraulic cylinder is installed in the upper end of fixed cylinder seat, the output end of the range-adjustable hydraulic cylinder passes through solid
It is connected and fixed after determining cylinder seat with rack gear；Register control, the location control are installed in the control terminal of range-adjustable hydraulic cylinder
The output end of device is also connected with the control terminal of the control terminal of left oil hydraulic cylinder and right oil hydraulic cylinder respectively；
Roll-over procedure is preset in the register control, the roll-over procedure carries out in accordance with the following steps:
1) when pipe is fed in central axis and passes through runing rest position, the left oil hydraulic cylinder of signal enabling and the right side are issued
Oil hydraulic cylinder, left oil hydraulic cylinder and right oil hydraulic cylinder drive corresponding clamping jaw to clamp pipe respectively；
2) register control sends a signal to milling cutter control equipment, starts milling cutter, carries out the operation of milling face to pipe；
3) after completing the milling face operation in step 2, start range-adjustable hydraulic cylinder, rack gear band is passed through by range-adjustable hydraulic cylinder
Nutating gear rotation, transmission gear drive center axis rotation again, drive pipe rotation, while the fortune for passing through rack gear by central axis
Row distance stops the movement of range-adjustable hydraulic cylinder when rack gear runs to set distance to control the rotational angle of pipe, thus
It realizes and pipe is positioned；
4) register control sends a signal to milling cutter control equipment again, starts milling cutter, carries out the operation of milling face to pipe；
5) it after completing the milling face operation in step 4), controls left oil hydraulic cylinder and right oil hydraulic cylinder is separately recovered, corresponding clamping jaw unclamps
Then pipe starts range-adjustable hydraulic cylinder, rotates range-adjustable hydraulic cylinder by rack drives transmission gear, and make to be driven
Gear returns to initial position, then stops range-adjustable hydraulic cylinder, equipment returns to original state at this time.
In the present invention, register control belongs to the state of the art for the control method of milling cutter control equipment, it is only needed
Milling cutter can be started to milling cutter control equipment by issuing a control signal, therefore this is not described in detail here, this is this field
What technical staff can implement.In the present invention, the model PIC16F677 of the register control use.
Optimally, the left oil hydraulic cylinder and right oil hydraulic cylinder are the slim oil hydraulic cylinder of CX.By using slim oil hydraulic cylinder energy
Enough mitigate the overall weight of equipment, and manipulates also more flexible.
Optimally, stiffening plate is further fixed in the side of the support baseboard.Can have after stiffening plate is set in the present invention
Effect prevents negative effect of vibration during face milling for equipment.
Optimally, it is 60 ° ~ 90 ° that the transmission gear, which turns to the angle of pipe position location from initial position,.Pass through essence
It controls the output length of rack gear really to realize the control for transmission gear rotational angle, realizes accurate steering, and reach
The purpose of automatic operation.
Optimally, be welded with the positioning plate of triangle in the side of support baseboard, the fixed cylinder seat by positioning plate with
Support baseboard is connected and fixed.By positioning plate the stability of fixed cylinder seat is strengthened here, it, can be with according to use demand
2 groups of positioning plates are set to improve stability.
Compared with the existing technology, the invention has the following advantages:
1, turnover device of the invention uses the structure and control flow of automation, it can be automatically performed the folder to copper pipe
It holds, overturn, so that cleaning more convenient, can be carried out efficiently, be conducive to improve production efficiency；
2, control precision is higher, due to accurately being manipulated using hydraulic cylinder control and mate gear transmission, enables to copper
The overturning of pipe is accurate, in place, and whole process is more smooth.
3, the investment for reducing human resources reduces the work load of operator.
Detailed description of the invention
Fig. 1 is the structural representation that a kind of high-precision copper pipe based on hydraulic cylinder control of the present invention mills face automatic turning device
Figure.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the circuit connection block diagram of register control and relevant device in the present invention.
In figure, 1-support baseboard, 2-bearing holder (housing, cover)s, 3-bearings, 4-central axises, 5-runing rests, 6-clamping jaws, 7-
Mounting hole, 8-left oil hydraulic cylinders, 9-right oil hydraulic cylinders, 10-transmission gears, 11-rack gears, 12-slideways, 13-fixed cylinder seats,
14-range-adjustable hydraulic cylinders, 15-register controls, 16-positioning plates.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
As Figure 1-Figure 4, a kind of high-precision copper pipe based on hydraulic cylinder control of the invention mills face automatic turning device,
Including support baseboard 1, the support baseboard 1 is L-type structure, and bearing holder (housing, cover) 2 is inlaid on the vertical plane of support baseboard 1, described
Bearing holder (housing, cover) 2 is fixed on support baseboard 1, and bearing 3 is equipped in the bearing holder (housing, cover) 2, and one end of central axis 4 is connected with bearing 3,
The other end of central axis 4 is fixedly connected after passing through the bearing 3 with runing rest 5；The central axis 4 is cylindrical shape,
There are the channel for drawing pipe in central axis 4, one end that runing rest 5 is connected on central axis 4 opens up that there are two use
In the mounting hole 7 of installation clamping jaw 6；The clamping jaw 6 is arc-shaped structure, anti-skidding equipped with being distributed counterclockwise in the inner wall of clamping jaw 6
Tooth, the clamping jaw 6 is two and is respectively arranged on the left and right side of 4 inner wall of central axis, and the runing rest 5 is disc
Shape is equipped with left oil hydraulic cylinder 8 in the left side of runing rest 5, installs right oil hydraulic cylinder 9, the left oil pressure on the right side of runing rest 5
The output end of cylinder 8 is connected and fixed after the mounting hole in 4 left side of central axis with the clamping jaw 6 in left side, the output of the right oil hydraulic cylinder 9
The clamping jaw 6 after the mounting hole on 4 right side of central axis with right side is held to be connected and fixed, the left oil hydraulic cylinder 8 and right oil hydraulic cylinder 9 are distinguished
Corresponding clamping jaw is driven to act；Transmission gear 10, the transmission gear 10 and central axis are also cased at the middle part of the central axis 4
4 key connections, the outside of the transmission gear 10 are engaged with rack gear 11, and the rack gear 11 is mounted in slideway 12, the slideway 12
In fixed cylinder seat 13, the side of the fixed cylinder seat 13 is weldingly fixed on support baseboard 1, in the upper end of fixed cylinder seat 13
Range-adjustable hydraulic cylinder 14 is installed, the output end of the range-adjustable hydraulic cylinder 14 connects after passing through fixed cylinder seat 13 with rack gear 11
Connect fixation；Register control 15, the output end of the register control 15 are installed in the control terminal of range-adjustable hydraulic cylinder 14
Also it is connected respectively with the control terminal of the control terminal of left oil hydraulic cylinder 8 and right oil hydraulic cylinder 9.
Roll-over procedure is preset in the register control 15, the roll-over procedure carries out in accordance with the following steps:
1) when pipe is fed in central axis 4 and passes through 5 position of runing rest, the left oil hydraulic cylinder 8 of signal enabling is issued
With right oil hydraulic cylinder 9, left oil hydraulic cylinder 8 and right oil hydraulic cylinder 9 drive corresponding clamping jaw to clamp pipe respectively；
2) register control 15 sends a signal to milling cutter control equipment, starts milling cutter, carries out the operation of milling face to pipe；
3) after completing the milling face operation in step 2, start range-adjustable hydraulic cylinder 14, tooth is passed through by range-adjustable hydraulic cylinder 14
Item 11 is rotated with nutating gear 10, and transmission gear 10 drives central axis 4 to rotate again, drives pipe rotation by central axis 4, simultaneously
The rotational angle that pipe is controlled by the range ability of rack gear 11 stops adjustable row when rack gear 11 runs to set distance
Journey hydraulic cylinder 14 acts, and positions to realize to pipe；
4) register control 15 sends a signal to milling cutter control equipment again, starts milling cutter, carries out the operation of milling face to pipe；
5) it after completing the milling face operation in step 4), controls left oil hydraulic cylinder 8 and right oil hydraulic cylinder 9 is separately recovered, corresponding clamping jaw pine
Then open pipe base starts range-adjustable hydraulic cylinder 14, revolve range-adjustable hydraulic cylinder 14 with nutating gear 10 by rack gear 11
Turn, and transmission gear 10 is made to return to initial position, then stops range-adjustable hydraulic cylinder 14, equipment is restored to initial shape at this time
State.
Referring to figures 1-4, in the present invention, the left oil hydraulic cylinder 8 and right oil hydraulic cylinder 9 are the slim oil hydraulic cylinder of CX.Institute
The side for stating support baseboard 1 is further fixed on stiffening plate 15.The transmission gear 10 turns to pipe position location from initial position
Angle can be 60 °, 65 °, 70 °, 72 °, 78 °, 85 ° or 90 °.The positioning of triangle is welded in the side of support baseboard 1
Plate 16, the fixed cylinder seat 13 are connected and fixed by positioning plate 16 with support baseboard 1.
Automatic turning device of the invention is profession manufacturing for high-precision copper pipe, is a kind of special equipment, it
It cannot be used for making other tubing, such as steel pipe, aluminum pipe etc., reason is the spies such as softer, oxidizable, the easy scuffing of copper pipe itself
Property, therefore likewise, using other tubing making apparatus, and the required high-precision copper pipe of the present invention cannot be made.
It should be noted that above embodiments are only to illustrate technical solution of the present invention rather than restriction technologies scheme, although
The invention is described in detail with reference to the preferred embodiments by applicant, those skilled in the art should understand that, those are right
The modification or equivalent replacement that technical solution of the present invention carries out, cannot be detached from the objective and range of the technical program, should all cover
In scope of the invention as claimed.
Claims (5)
1. a kind of high-precision copper pipe based on hydraulic cylinder control mills face automatic turning device, which is characterized in that including support baseboard
(1), the support baseboard (1) is L-type structure, and bearing holder (housing, cover) (2), the bearing are inlaid on the vertical plane of support baseboard (1)
Set (2) is fixed on support baseboard (1), is equipped with bearing (3) in the bearing holder (housing, cover) (2), one end of central axis (4) and bearing
(3) it is connected, the other end of central axis (4) passes through the bearing (3) and is fixedly connected afterwards with runing rest (5)；The central axis
It (4) is cylindrical shape, there are the channels for drawing pipe in central axis (4), are connected to runing rest on central axis (4)
(5) one end opens up that there are two for installing the mounting holes (7) of clamping jaw (6)；The clamping jaw (6) is arc-shaped structure, in clamping jaw
(6) inner wall is equipped with the anti-slop serrations being distributed counterclockwise, and the clamping jaw (6) is two and is respectively arranged on central axis (4) inner wall
Left and right side, the runing rest (5) they are disc-shape, and left oil hydraulic cylinder (8) are equipped on the left of runing rest (5),
Right oil hydraulic cylinder (9) is installed on the right side of runing rest (5), and the output end of the left oil hydraulic cylinder (8) passes through the peace on the left of central axis (4)
Clamping jaw (6) on the left of dress Kong Houyu is connected and fixed, and the output end of the right oil hydraulic cylinder (9) passes through the installation on the right side of central axis (4)
Clamping jaw (6) on the right side of Kong Houyu is connected and fixed, and the left oil hydraulic cylinder (8) and right oil hydraulic cylinder (9) drive corresponding clamping jaw dynamic respectively
Make；It being also cased with transmission gear (10) at the middle part of the central axis (4), the transmission gear (10) and central axis (4) are keyed,
The outside of the transmission gear (10) is engaged with rack gear (11), and the rack gear (11) is mounted in slideway (12), the slideway
(12) it is set on fixed cylinder seat (13), the side of the fixed cylinder seat (13) is weldingly fixed on support baseboard (1), in stationary cylinder
The upper end of seat (13) is equipped with range-adjustable hydraulic cylinder (14), and the output end of the range-adjustable hydraulic cylinder (14) passes through stationary cylinder
Seat (13) is connected and fixed with rack gear (11) afterwards；Register control (15) are installed in the control terminal of range-adjustable hydraulic cylinder (14),
The output end of the register control (15) the also control terminal phase with the control terminal of left oil hydraulic cylinder (8) and right oil hydraulic cylinder (9) respectively
Even；
Roll-over procedure is preset in the register control (15), the roll-over procedure carries out in accordance with the following steps:
When pipe is fed in central axis (4) and passes through runing rest (5) position, the left oil hydraulic cylinder of signal enabling is issued
(8) and right oil hydraulic cylinder (9), left oil hydraulic cylinder (8) and right oil hydraulic cylinder (9) drive corresponding clamping jaw to clamp pipe respectively；
Register control (15) sends a signal to milling cutter control equipment, starts milling cutter, carries out the operation of milling face to pipe；
After completing the milling face operation in step 2, starts range-adjustable hydraulic cylinder (14), passed through by range-adjustable hydraulic cylinder (14)
Rack gear (11) band nutating gear (10) rotates, and transmission gear (10) drives central axis (4) to rotate again, is driven by central axis (4)
Pipe rotates, while the rotational angle of pipe is controlled by the range ability of rack gear (11), when rack gear (11) runs to setting
Apart from when, stop range-adjustable hydraulic cylinder (14) movement, thus realize to pipe position；
Register control (15) sends a signal to milling cutter control equipment again, starts milling cutter, carries out the operation of milling face to pipe；
After completing the milling face operation in step 4), controls left oil hydraulic cylinder (8) and right oil hydraulic cylinder (9) is separately recovered, corresponding clamping jaw
Pipe is unclamped, then starts range-adjustable hydraulic cylinder (14), range-adjustable hydraulic cylinder (14) is made to drive transmission by rack gear (11)
Gear (10) rotation, and transmission gear (10) is made to return to initial position, then stop range-adjustable hydraulic cylinder (14), at this time equipment
It returns to original state.
2. the high-precision copper pipe according to claim 1 based on hydraulic cylinder control mills face automatic turning device, feature exists
In the left oil hydraulic cylinder (8) and right oil hydraulic cylinder (9) are the slim oil hydraulic cylinder of CX.
3. the high-precision copper pipe according to claim 2 based on hydraulic cylinder control mills face automatic turning device, feature exists
In being further fixed on stiffening plate (15) in the side of the support baseboard (1).
4. the high-precision copper pipe according to claim 3 based on hydraulic cylinder control mills face automatic turning device, feature exists
In it is 60 ° ~ 90 ° that the transmission gear (10), which turns to the angle of pipe position location from initial position,.
5. the high-precision copper pipe according to claim 4 based on hydraulic cylinder control mills face automatic turning device, feature exists
In being welded with the positioning plate (16) of triangle in the side of support baseboard (1), the fixed cylinder seat (13) passes through positioning plate (16)
It is connected and fixed with support baseboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553039.0A CN109465662A (en) | 2018-12-19 | 2018-12-19 | A kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553039.0A CN109465662A (en) | 2018-12-19 | 2018-12-19 | A kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109465662A true CN109465662A (en) | 2019-03-15 |
Family
ID=65676661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811553039.0A Withdrawn CN109465662A (en) | 2018-12-19 | 2018-12-19 | A kind of high-precision copper pipe milling face automatic turning device based on hydraulic cylinder control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109465662A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631823A (en) * | 2019-10-21 | 2019-12-31 | 海门市铁路机车车辆配件厂有限公司 | Alternating current servo oil pressure damper test bed |
| CN111805289A (en) * | 2020-07-10 | 2020-10-23 | 重庆龙煜精密铜管有限公司 | A mill face work or material rest for production of high accuracy copper pipe |
| CN111975271A (en) * | 2020-07-10 | 2020-11-24 | 芜湖市宇特机械制造有限公司 | Clamp for automobile welding production |
-
2018
- 2018-12-19 CN CN201811553039.0A patent/CN109465662A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631823A (en) * | 2019-10-21 | 2019-12-31 | 海门市铁路机车车辆配件厂有限公司 | Alternating current servo oil pressure damper test bed |
| CN111805289A (en) * | 2020-07-10 | 2020-10-23 | 重庆龙煜精密铜管有限公司 | A mill face work or material rest for production of high accuracy copper pipe |
| CN111975271A (en) * | 2020-07-10 | 2020-11-24 | 芜湖市宇特机械制造有限公司 | Clamp for automobile welding production |
| CN111975271B (en) * | 2020-07-10 | 2022-06-14 | 芜湖市宇特机械制造有限公司 | Clamp for automobile welding production |
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Application publication date: 20190315 |