CN109483431A - Pipe fitting cramping arrangement - Google Patents
Pipe fitting cramping arrangement Download PDFInfo
- Publication number
- CN109483431A CN109483431A CN201811327008.3A CN201811327008A CN109483431A CN 109483431 A CN109483431 A CN 109483431A CN 201811327008 A CN201811327008 A CN 201811327008A CN 109483431 A CN109483431 A CN 109483431A
- Authority
- CN
- China
- Prior art keywords
- motor
- expanding block
- mandrel
- master controller
- output shaft
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/061—Screw or nut setting or loosening machines for pipes or pipe-couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding Of Webs (AREA)
Abstract
A kind of pipe fitting cramping arrangement, including magnet ring, sensor, tensioning motor, master controller, motor driver, mandrel, expanding block mounting base, expanding block mechanism, tension spring, rack, screw rod, first switch and the second switch；The body and expanding block mounting base for being tensioned motor, which are fixedly connected with, to be tensioned the output shaft of motor on the rack and connect with screw rod transmission；Mandrel is slidably connected in expanding block mounting base, and screw rod is connect with mandrel thread；Expanding block mechanism includes several radial sliders and several expanding blocks, and radial slider is slidably connected in the sliding slot of expanding block mounting base, and the conical surface of radial slider is matched with the cone portion of mandrel；Magnet ring is fixedly connected on the output shaft of tensioning motor；Sensor is fixedly connected on the body of tensioning motor；Sensor, motor driver, first switch and the second switch are electrically connected with master controller；Tensioning motor is electrically connected with motor driver.The present invention can be automatically controlled with Automatic-clamping steel pipe and clamping force.
Description
Technical field
The present invention relates to a kind of pipe fitting cramping arrangements.
Background technique
In actual life, many handling and operation of steel pipe (pipe fitting) are required to steel tube clamping.Especially hydraulic
Seamless steel pipe can be encountered during assembly or disassembly by standing is threadedly coupled with collar joint needs, and the biggish steel pipe of caliber needs
It cuts, either tightens screw thread, disassembly screw thread or steel pipe and cut to require first to clamp steel pipe in operation and implement again
Twist, tear open, cutting action, existing technology generally passes through steel tube clamping manually, cannot real Automatic-clamping, Large Diameter Pipeline is needed
On the one hand very big clamping force can take a lot of time in this way, another aspect clamping force is also difficult to control.
Summary of the invention
It is an object of the invention to propose that one kind can be pressed from both sides with the pipe fitting that Automatic-clamping steel pipe and clamping force can automatically control
Tight device.
In order to achieve the above objectives, the present invention adopts the following technical scheme that: a kind of pipe fitting cramping arrangement, including magnet ring, sensing
Device, tensioning motor, master controller, motor driver, mandrel, expanding block mounting base, expanding block mechanism, tension spring, rack, screw rod,
First switch and the second switch；
The body and expanding block mounting base of the tensioning motor are fixedly connected with the output shaft and screw rod for being tensioned motor on the rack
One end transmission connection；The mandrel is slidably connected in expanding block mounting base, the center of mandrel be equipped with axially through screw thread
Hole, and mandrel is axially arranged with several cone portions；The other end of the screw rod is threadedly coupled with the threaded hole of mandrel；It is described
Expanding block mounting base is equipped with the sliding slot of several groups radially, and every group of sliding slot radially includes several sliding slots；The expanding block
Mechanism includes several radial sliders and several expanding blocks circumferentially, and expanding block is fixedly connected with radial slider,
Radial slider is slidably connected in the sliding slot of expanding block mounting base, and radial slider be equipped with the conical surface, the conical surface of radial slider with
The cone portion of mandrel matches；The magnet ring is fixedly connected on the output shaft of tensioning motor；The sensor is fixedly connected on
It is tensioned on the body of motor and corresponding with magnet ring；The tension spring is connected between adjacent expanding block；The sensor, motor
Driver, first switch and the second switch are connect with master controller electrical connection or wireless telecommunications；The tensioning motor and motor
Driver electrical connection or wireless telecommunications connection；When first switch is connected, is controlled and be tensioned by motor driver by master controller
The output shaft of motor starts to rotate forward；When the tachometer value that sensor detects is less than the setting speed value in master controller, by leading
Controller is stopped rotating by the output shaft that motor driver controls tensioning motor；When second switch is connected, by master controller
Start the timer in reversion and master controller by the output shaft that motor driver controls tensioning motor and start timing, works as master control
When the time of timer in device processed reaches the setting time in master controller, motor driver control is passed through by master controller
The output shaft of tight motor stops rotating.
The expanding block is fixedly connected by screw with radial slider.
It further include sensor stand；The sensor is fixedly connected on the body of tensioning motor by sensor stand.
It further include shaft coupling；The output shaft of the tensioning motor is sequentially connected by one end of shaft coupling and screw rod.
The present invention has following good effect: (1) since the output shaft of tensioning motor of the invention and one end of screw rod pass
Dynamic connection；Mandrel is slidably connected in expanding block mounting base, and mandrel is axially arranged with several cone portions；The other end of screw rod
It is threadedly coupled with the threaded hole of mandrel；Expanding block mounting base is equipped with the sliding slot of several groups radially, every group of sliding slot packet radially
Include several sliding slots；Expanding block mechanism includes several radial sliders and several expanding blocks circumferentially, radial slider
It is slidably connected in the sliding slot of expanding block mounting base, and radial slider is equipped with the conical surface, the conical surface of radial slider and the cone of mandrel
Body portion matches；Magnet ring is fixedly connected on the output shaft of tensioning motor 3；Sensor is fixedly connected on the body of tensioning motor
And it is corresponding with magnet ring；Sensor, motor driver, first switch and the second switch are electrically connected with master controller or channel radio
News connection；Tensioning motor is electrically connected with motor driver or wireless telecommunications are connect；When first switch is connected, led to by master controller
The output shaft for crossing motor driver control tensioning motor starts to rotate forward；When the tachometer value that sensor detects is less than in master controller
Setting speed value when, by master controller by motor driver control tensioning motor output shaft stop rotating, thus when need
When clamping pipe fitting, first switch is connected, is rotated forward by the output shaft of main controller controls tensioning motor, screw rod is with tensioning
The output shaft synchronous of motor rotates forward, and screw rod rotating forward will drive mandrel and move right, and pushes radial slider edge by the cone portion of mandrel
The sliding slot of expanding block mounting base is moved radially outward, after expanding block touches the inner hole of pipe fitting, inner hole of the expanding block to pipe fitting
Resistance will increase when continuing expansion, and the revolving speed of the output shaft for being tensioned motor and screw rod can be made to reduce, when turning for sensor detection
When speed value is less than the setting speed value in master controller, stopped rotating by the output shaft of main controller controls tensioning motor, screw rod
It no longer rotates forward, the mandrel connecting with wire rod thread no longer moves right, and radial slider is also no longer moved radially outward, at this moment swelling
Block swelling is in the inner hole for needing to clamp pipe fitting, it can from clamping pipe fitting, and the size of clamping force also no longer changes, that is, clamps
The size of power can be automatically controled.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is that the A-A of Fig. 1 is cutd open and shown schematic diagram；
Fig. 3 is that the B-B of Fig. 1 is cutd open and shown schematic diagram；
Fig. 4 is control principle drawing of the invention；
Fig. 5 is schematic diagram of the present invention when clamping pipe fitting.
Appended drawing reference in above-mentioned attached drawing is as follows: magnet ring 1, sensor 2, tensioning motor 3, master controller 4, motor driver
5, mandrel 6, cone portion 6-1, expanding block mounting base 7, sliding slot 7-1, expanding block mechanism 8, tension spring 9, rack 10, screw rod 11, first
Switch 12, second switch 13, sensor stand 14, shaft coupling 15, sliding block 16, radial slider 81, conical surface 81-1, expanding block 82,
Pipe fitting 100.
Specific embodiment
Below in conjunction with attached drawing and the embodiment provided, the present invention is further illustrated.
As shown in Figures 1 to 4, a kind of pipe fitting cramping arrangement, including magnet ring 1, sensor 2, tensioning motor 3, master controller
4, motor driver 5, mandrel 6, expanding block mounting base 7, expanding block mechanism 8, tension spring 9, rack 10, screw rod 11, first switch 12
With second switch 13；The present embodiment middle magnetic ring 1 selects two pairs of pole magnet rings of Jiangsu Xin Xu magnetoelectricity Science and Technology Ltd. production.Sensing
The Hall sensor of the selection of device 2 model MT4401.It is tensioned the servo motor that motor 3 selects model TLSM04-M00330.It is main
Controller 4 is PLC programmable controller, selects mitsubishi FX2N C-PLC programmable controller, and motor driver 5 selects model
The direct-current motor driving plate of LMD 18200T.First switch 12 and second switch 13 are reset button switch.
As shown in Figure 1, the body and expanding block mounting base 7 of the tensioning motor 3 are fixedly connected in rack 10, it is tensioned
The output shaft of motor 3 and one end of screw rod 11 are sequentially connected；When being tensioned the output shaft rotation of motor 3, screw rod 11 is with tensioning electricity
The output shaft synchronous of machine 3 rotates.As shown in figures 1 and 3, the mandrel 6 is by being welded to connect the cunning in expanding block mounting base 7
Block 16 is slidably connected in expanding block mounting base 7, the center of mandrel 6 be equipped with axially through threaded hole, and the axial direction of mandrel 6 is set
There is several cone portions 6-1；In the present embodiment, mandrel 6 is axially arranged with two cone portion 6-1.The other end of the screw rod 11
Portion is threadedly coupled with the threaded hole of mandrel 6；As depicted in figs. 1 and 2, the expanding block mounting base 7 is equipped with several groups radially
Sliding slot；In the present embodiment, expanding block mounting base 7 is equipped with two groups of sliding slots radially, and every group of sliding slot radially includes four cunnings
Slot 7-1.The expanding block mechanism 8 includes several radial sliders 81 and several expanding blocks 82 circumferentially；This implementation
In example, expanding block mechanism 8 includes eight radial sliders 81 and four expanding blocks 82 being evenly distributed.Expanding block 82 and radial direction are sliding
Block 81 is fixedly connected, and in the present embodiment, expanding block 82 is fixedly connected by fastener with radial slider 81.Radial slider 81 is slided
It is connected in the sliding slot 7-1 of expanding block mounting base 7, and radial slider 81 is equipped with conical surface 81-1, the conical surface 81- of radial slider 81
1 matches with the cone portion 6-1 of mandrel 6；When mandrel 6 moves right, in the collective effect of cone portion 6-1 and conical surface 81-1
Under, radial slider 81 radially outward slides.The magnet ring 1 is fixedly connected on the output shaft of tensioning motor 3；Magnetic in the present embodiment
Ring 1 is bonded on the output shaft of tensioning motor 3, and when the output shaft of tensioning motor 3 rotates, magnet ring 1 can be with synchronous rotary.The biography
Sensor 2 is fixedly connected on the body of tensioning motor 3 and corresponding with magnet ring 1；The tension spring 9 is connected to adjacent expanding block 82
Between；In the present embodiment, it is equipped with 4 tension springs 9 altogether.As shown in figure 4, the sensor 2, motor driver 5,12 and of first switch
Second switch 13 is connect with the electrical connection of master controller 4 or wireless telecommunications；The tensioning motor 3 is electrically connected with motor driver 5
Or wireless telecommunications connection；When first switch 12 is connected, the defeated of the control tensioning motor 3 of motor driver 5 is passed through by master controller 4
Shaft starts to rotate forward；When the tachometer value that sensor 2 detects is less than the setting speed value in master controller 4, by master controller 4
It is stopped rotating by the output shaft that motor driver 5 controls tensioning motor 3；When second switch 13 is connected, led to by master controller 4
The output shaft for crossing the control tensioning motor 3 of motor driver 5 starts to invert and the timer in master controller 4 starts timing, works as master
When the time of timer in controller 4 reaches the setting time in master controller 4, motor driver 5 is passed through by master controller 4
The output shaft of control tensioning motor 3 stops rotating.As shown in figure 5, after expanding block 82 touches the inner hole of pipe fitting 100, swelling
The resistance of 82 radial outward movement of block will increase, and the revolving speed that the output shaft and screw rod 11 for being tensioned motor 3 continue rotation will drop
Low, the setting speed value in master controller 4 is to be tested obtained 82 swelling of expanding block in the inner hole for the pipe fitting 100 for needing to clamp
In, and the tension force of expanding block 82 not will cause pipe fitting 100 deform it is excessive, will not because tension force not enough due to cause pipe fitting 100
When loosening, by the tachometer value for the output shaft for being tensioned motor 3 that sensor 2 detects.That is, working as the tachometer value of sensor 2
When less than setting speed value in master controller 4, the at this moment swelling of expanding block 82 in the inner hole for the pipe fitting 100 for needing to clamp and
Pipe fitting 100 can be clamped.Setting time in master controller 4 is inverted since the output shaft of tensioning motor 3 for what is obtained through test
The cone portion 6-1 of mandrel 6 is set to leave the time of the conical surface 81-1 of sliding block 81 after inverting to tensioning motor 3.That is tensioning electricity
After the output shaft of machine 3 starts reversion, it will drive mandrel 6 and be moved to the left, when the cone portion 6-1 of mandrel 6 leaves the conical surface of sliding block 81
When 81-1, at this moment the time of the timer in master controller 4 has reached the setting time in master controller 4, is led to by master controller 4
The output shaft for crossing the control tensioning motor 3 of motor driver 5 stops rotating.
As shown in Fig. 2, the expanding block 82 is fixedly connected by screw with radial slider 81.Different inner diameters are clamped in this way
When the inner hole of pipe fitting 100, as long as changing the suitable expanding block 82 of size.
As shown in Figure 1, further including sensor stand 14；The sensor 2 is fixedly connected on by sensor stand 14 to be opened
On the body of tight motor 3.In the present embodiment, sensor 2 is fixedly connected on sensor stand 14 by fastener, sensor branch
Frame 14 is fixedly connected on the body of tensioning motor 3 by fastener.
It further include shaft coupling 15；The output shaft of the tensioning motor 3 is driven by one end of shaft coupling 15 and screw rod 11 to be connected
It connects.10 axially position of one end that shaft coupling 15 passes through the output shaft and screw rod 11 of holding screw and tensioning motor 3.
As shown in figure 5, in the use of the present invention, the inner hole of pipe fitting 100 is set in swollen when needing to clamp pipe fitting 100
The periphery of tight block 82.
As shown in Fig. 1 to the 5 of figure, working principle of the present invention is as follows: when needing to clamp pipe fitting 100, presses first and open
Close 12 button, make first switch 12 connect, by master controller 4 control tensioning motor 3 output shaft rotate forward, screw rod 11 with
The output shaft synchronous for being tensioned motor 3 rotates forward, since the other end of the screw rod 11 is threadedly coupled with the threaded hole of mandrel 6；Institute
It states mandrel 6 to be slidably connected in expanding block mounting base 7, and mandrel 6 is axially arranged with cone portion 6-1, thus screw rod 11 just transfers from a team to another
Band moving mandrel 6 moves right, and at cone portion 6-1 and conical surface 81-1 collective effect, is pushed by the cone portion 6-1 of mandrel 6 radial
Sliding block 81 is moved radially outward along the sliding slot 7-1 of expanding block mounting base 7, to make the expanding block being fixedly connected with radial slider 81
82 to pipe fitting 100 interior bore expansion, after expanding block 82 touches the inner hole of pipe fitting 100, inner hole of the expanding block 82 to pipe fitting 100
Resistance will increase when continuing expansion, and the revolving speed of the output shaft for being tensioned motor 3 and screw rod 11 can be made to reduce, when sensor 2 detects
Tachometer value be less than master controller 4 in setting speed value when, by master controller 4 control tensioning motor 3 output shaft stop rotation
Turn, at this moment screw rod 11 no longer rotates forward, and the mandrel 6 being threadedly coupled with screw rod 11 no longer moves right, and the cone portion 6-1 of mandrel 6 is not
Radial slider 81 is pushed to be moved radially outward along the sliding slot 7-1 of expanding block mounting base 7 again, at this moment 82 swelling of expanding block is needing to press from both sides
In the inner hole of tight pipe fitting 100, it can from clamping pipe fitting 100, and the size of clamping force also no longer changes, and the size of clamping force was both
Not will cause pipe fitting 100 deform it is excessive, will not because clamping force not enough due to cause pipe fitting 100 loosen, i.e. the size of clamping force can
It automatically controls.
When needing to unclamp pipe fitting 100, the button of second switch 13 need to be only pressed, connects second switch 13, by master control
The output shaft of the control of device 4 tensioning motor 3 processed starts to invert, and screw rod 11 is inverted with the output shaft synchronous of tensioning motor 3, and screw rod 11 is anti-
Change of team band moving mandrel 6 is moved to the left, and under the action of tension spring 9, radial slider 81 is radial along the sliding slot 7-1 of expanding block mounting base 7
It moves inward, so that expanding block 82 be made to reset.When the cone portion 6-1 of mandrel 6 leaves the conical surface 81-1 of sliding block 81, by main control
Device 4 is stopped rotating by the output shaft that motor driver 5 controls tensioning motor 3.
Claims (4)
1. a kind of pipe fitting cramping arrangement, it is characterised in that: including magnet ring (1), sensor (2), tensioning motor (3), master controller
(4), motor driver (5), mandrel (6), expanding block mounting base (7), expanding block mechanism (8), tension spring (9), rack (10), screw rod
(11), first switch (12) and second switch (13)；
The body and expanding block mounting base (7) of tensioning motor (3) are fixedly connected on rack (10), are tensioned motor (3)
Output shaft and screw rod (11) one end be sequentially connected；The mandrel (6) is slidably connected on expanding block mounting base (7), mandrel
(6) center be equipped with axially through threaded hole, and mandrel (6) is axially arranged with several cone portions (6-1)；The screw rod
(11) the other end is threadedly coupled with the threaded hole of mandrel (6)；The expanding block mounting base (7) is equipped with several groups radially
Sliding slot, every group of sliding slot radially include several sliding slots (7-1)；The expanding block mechanism (8) includes several radial sliders
(81) and several expanding blocks (82) circumferentially, and expanding block (82) is fixedly connected with radial slider (81), radial sliding
Block (81) is slidably connected in the sliding slot (7-1) of expanding block mounting base (7), and radial slider (81) is equipped with the conical surface (81-1),
The conical surface (81-1) of radial slider (81) is matched with the cone portion (6-1) of mandrel (6)；The magnet ring (1), which is fixedly connected on, opens
On the output shaft of tight motor (3)；The sensor (2) is fixedly connected on the body of tensioning motor (3) and opposite with magnet ring (1)
It answers；The tension spring (9) is connected between adjacent expanding block (82)；The sensor (2), motor driver (5), first switch
(12) it is connect with master controller (4) electrical connection or wireless telecommunications with second switch (13)；The tensioning motor (3) and motor drive
Dynamic device (5) electrical connection or wireless telecommunications connection；When first switch (12) are connected, motor driver is passed through by master controller (4)
(5) output shaft of control tensioning motor (3) starts to rotate forward；When the tachometer value that sensor (2) detects is less than in master controller (4)
Setting speed value when, by master controller (4) by motor driver (5) control tensioning motor (3) output shaft stop rotating；
When second switch (13) are connected, opened by master controller (4) by the output shaft that motor driver (5) control tensioning motor (3)
Begin to invert and the timer in master controller (4) starts timing, reaches main control when the time of the timer in master controller (4)
When setting time in device (4), stopped by master controller (4) by the output shaft of motor driver (5) control tensioning motor (3)
Rotation.
2. pipe fitting cramping arrangement according to claim 1, it is characterised in that: the expanding block (82) passes through screw and radial direction
Sliding block (81) is fixedly connected.
3. pipe fitting cramping arrangement according to claim 1, it is characterised in that: further include sensor stand (14)；The biography
Sensor (2) is fixedly connected on the body of tensioning motor (3) by sensor stand (14).
4. pipe fitting cramping arrangement according to claim 1, it is characterised in that: further include shaft coupling (15)；The tensioning electricity
The output shaft of machine (3) is sequentially connected by the one end of shaft coupling (15) and screw rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811327008.3A CN109483431A (en) | 2018-11-08 | 2018-11-08 | Pipe fitting cramping arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811327008.3A CN109483431A (en) | 2018-11-08 | 2018-11-08 | Pipe fitting cramping arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109483431A true CN109483431A (en) | 2019-03-19 |
Family
ID=65694122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811327008.3A Withdrawn CN109483431A (en) | 2018-11-08 | 2018-11-08 | Pipe fitting cramping arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109483431A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064770A (en) * | 2019-05-17 | 2019-07-30 | 泰州润骐防务科技有限公司 | It can be reduced rise core fixture and its application method of workpiece inner wall damage |
| CN110328473A (en) * | 2019-08-07 | 2019-10-15 | 苏州神本精密机械有限公司 | A kind of circular shell welder |
| CN111451755A (en) * | 2020-05-20 | 2020-07-28 | 湖北合强机械发展股份有限公司 | Expansion device of brake disc bolt tightening machine |
| CN111871684A (en) * | 2020-08-21 | 2020-11-03 | 重庆谦荣佳科技有限公司 | Paint spraying device with pre-drying function |
| CN111889266A (en) * | 2020-08-21 | 2020-11-06 | 重庆谦荣佳科技有限公司 | Positioning structure for metal pipe fitting and paint spraying equipment with positioning structure |
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| WO2021046885A1 (en) * | 2019-09-12 | 2021-03-18 | 苏州赛硕拉不锈钢制品有限公司 | Expansion, support and fixing device for machining stainless steel pipe |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110064770B (en) * | 2019-05-17 | 2020-06-16 | 泰州润骐防务科技有限公司 | Core expansion clamp capable of reducing damage to inner wall of workpiece and using method thereof |
| CN110064770A (en) * | 2019-05-17 | 2019-07-30 | 泰州润骐防务科技有限公司 | It can be reduced rise core fixture and its application method of workpiece inner wall damage |
| CN110328473A (en) * | 2019-08-07 | 2019-10-15 | 苏州神本精密机械有限公司 | A kind of circular shell welder |
| WO2021046885A1 (en) * | 2019-09-12 | 2021-03-18 | 苏州赛硕拉不锈钢制品有限公司 | Expansion, support and fixing device for machining stainless steel pipe |
| CN111451755A (en) * | 2020-05-20 | 2020-07-28 | 湖北合强机械发展股份有限公司 | Expansion device of brake disc bolt tightening machine |
| CN111871684A (en) * | 2020-08-21 | 2020-11-03 | 重庆谦荣佳科技有限公司 | Paint spraying device with pre-drying function |
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Application publication date: 20190319 |