CN203449073U - Feeding device of pipe fitting machining device - Google Patents

Feeding device of pipe fitting machining device Download PDF

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Publication number
CN203449073U
CN203449073U CN201320417145.2U CN201320417145U CN203449073U CN 203449073 U CN203449073 U CN 203449073U CN 201320417145 U CN201320417145 U CN 201320417145U CN 203449073 U CN203449073 U CN 203449073U
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CN
China
Prior art keywords
pipe fitting
feeding
backstay
feeding plate
equipment
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.)
Withdrawn - After Issue
Application number
CN201320417145.2U
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Chinese (zh)
Inventor
丁雷敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHUZTUNG MACHINERY (KUNSHAN) CO Ltd
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SHUZTUNG MACHINERY (KUNSHAN) CO Ltd
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Priority to CN201320417145.2U priority Critical patent/CN203449073U/en
Application granted granted Critical
Publication of CN203449073U publication Critical patent/CN203449073U/en
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Abstract

The utility model relates to a feeding device of a pipe fitting machining device. The pipe fitting machining device comprises a machining unit, and the feeding device comprises a feeding mechanism which is arranged on a machine seat and used for inputting pipe fittings, a bearing mechanism which is used for bearing the pipe fittings and providing a conveying track for the pipe fittings and a clamping mechanism which is used for clamping the pipe fittings on the bearing mechanism and conveying the pipe fittings to the machining unit. The machine seat is provided with a guide rail which extends in the conveying direction of the pipe fittings, and the clamping mechanism comprises a sliding seat which is arranged on the guide rail in a sliding mode and a positioning rod movably arranged on the sliding seat. The positioning rod is provided with a first end connected with the sliding seat and a second end which is used for pushing against the pipe fittings. The feeding device of the pipe fitting machining device achieves automatic feeding of the pipe fitting machining device.

Description

The feeding device of pipe fitting process equipment
Technical field
the utility model relates to a kind of feeding device of pipe fitting process equipment, especially a kind of automatic charging device of pipe fitting process equipment.
Background technology
in prior art, the pipe fitting process equipments such as pipe fitting cutting machine, pipe fitting expanding machine, pipe fitting puncher mainly rely on artificial loading.The aluminum pipe that the raw material of take is ∮ 42 ∮ 55 overall length 6m is example, and the main operating process of process is as follows: operating personnel first adjust the height of stock shelf according to the caliber of raw material aluminum pipe, makes the processing plane of itself and CNC in same level; Operating personnel are positioned over raw material aluminum pipe on stock shelf; Circular sawing machine cuts out raw material aluminum pipe scale; Forward CNC Cutter Body Processing with Machining Center to; Operating personnel put into Turnover Box by the aluminum pipe machining.Obviously can find out, its feeding process mainly relies on manually and completes, and wastes time and energy, and can not realize automation and batch production, inefficiency.
Summary of the invention
for the problems referred to above, the purpose of this utility model is to provide a kind of feeding device of pipe fitting process equipment, and it has realized the automatic charging of pipe fitting process equipment, can realize automation and batch production pipe fitting, and operating efficiency is high.
for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
a kind of feeding device of pipe fitting process equipment, described pipe fitting process equipment has machining cell, described feeding device comprise be arranged on support for inputting the feeding mechanism of pipe fitting, for accept pipe fitting and provide pipe fitting delivery track stock supporting mechanism and for clamping the pipe fitting on described stock supporting mechanism and being delivered to the clamping device of machining cell, described support has the guide rail extending along pipe fitting throughput direction, described clamping device comprises the slide being mounted slidably on guide rail, be arranged on actively on described slide backstay, described backstay has first end and the second end for pipe fitting is pushed against being connected with described slide.
preferably, on described slide, be provided with and hold out against cylinder, for driving backstay to move to push against pipe fitting.
preferably, described clamping device also comprises block and the rotary cylinder being fixedly installed on described slide, on the first end of described backstay, be fixedly installed a contiguous block, described contiguous block is rotated and is connected with slide by a rotating shaft, the axial line of this rotating shaft and the axial line of backstay are not coaxial, described backstay is between described block and machining cell, described clamping device has two operating positions, when first job position, described rotary cylinder drives backstay stock supporting mechanism rotation dorsad, the delivery track of described block and pipe fitting maintains an equal level, and described block promotes pipe fitting and moves a certain distance to machining cell, when second operating position, described rotary cylinder drives backstay to rotate towards stock supporting mechanism, and the delivery track of described backstay and pipe fitting maintains an equal level, and described backstay fixing pipe fitting is also pushed to machining cell.
more preferably, the delivery track of described rotating shaft and pipe fitting maintains an equal level, and when first job position, described backstay turns to the top of rotating shaft.
preferably, the second end of described backstay at least has two and can, towards the jaw with deviating from described backstay axial line and rotating, also be provided with the clamping cylinder for driving described jaw to rotate on described slide.
in some specific embodiment, described feeding mechanism comprises a plurality of push rods, a plurality of upper feeding plate and lower feeding plates that are fixedly installed on described support, described upper feeding plate is between described stock supporting mechanism and lower feeding plate, described upper feeding plate has the first end that is connected with lower feeding plate and near the second end of stock supporting mechanism, described upper feeding plate is downward-sloping gradually to the second end from its first end, the running flitch has goes up the first end of feeding plate and the second end being connected with upper feeding plate dorsad, the running flitch is downward-sloping gradually to the second end from its first end, the first end of described upper feeding plate is higher than the second end of lower feeding plate, described push rod is slidably arranged in the second end of lower feeding plate, the upper surface of described push rod is downward-sloping gradually along the direction of the feeding plate that makes progress from the running flitch, described push rod has two positions, when first position, the upper surface of push rod and the upper surface of upper feeding plate join, when second position, the upper surface of push rod is lower than the upper surface of lower feeding plate or join with it.
preferably, described push rod is connected by a connecting rod and push rod cylinder.
preferably, described push rod can vertically descend feeding plate to slide relatively.
in some specific embodiment, described loading device comprises the cramp bar that can vertically be slidably arranged on support, a plurality of supporting base being fixedly installed on described cramp bar, on each supporting base, be provided with for holding the groove of pipe fitting, each groove forms the delivery track of pipe fitting jointly.
preferably, on the second end of described backstay, be provided with and prevent that the cooling water of machining cell is along the sealing ring of pipe fitting refluence.
operation principle of the present utility model is as follows: the pipe fitting as raw material completes the processing such as severing, cutting, expander, punching via pushing to machining cell by clamping device after feeding mechanism, stock supporting mechanism successively;
in feeding mechanism, operating personnel are placed in pipe fitting on lower feeding plate continuously, the upper surface of push rod is lower than the upper surface of upper feeding plate or join with it, pipe fitting is arranged to first end successively by the second end of lower feeding plate by himself Action of Gravity Field, push rod air cylinder driven push rod upward sliding is by the pipe fitting jack-up of dropping on push rod upper surface to joining with the upper surface of upper feeding plate, and pipe fitting departs from push rod, via the upper surface of upper feeding plate, rolls in the delivery track of stock supporting mechanism; When pipe fitting enters after delivery track, push rod cylinder is pulled back and is driven push rod to slide down to its upper surface not higher than the upper surface of lower feeding plate, follow-up pipe fitting continues to roll into the upper surface of push rod, and to machining cell, by after the pipe fitting completion of processing on stock supporting mechanism, push rod continues to lift and repeats above-mentioned action;
in stock supporting mechanism, must according to the caliber of pipe fitting adjust each supporting base height so that the processing plane of the delivery track that supporting base forms and machining center in same level;
in clamping device, when first job position, rotary cylinder driving backstay deviates from stock supporting mechanism rotation does not interfere the delivery track of backstay and pipe fitting, pipe fitting can be rolled on stock supporting mechanism by upper feeding plate, clamping device slides to machining cell, block promotion pipe fitting on slide moves and makes pipe fitting move one end distance to machining cell, and this distance is not less than the length of backstay, and clamping device slips back to initial position; When second operating position, rotary cylinder drives backstay to rotate and make backstay and pipe fitting in same level towards stock supporting mechanism, the jaw that holds out against air cylinder driven backstay probes into the inwall of pipe fitting, clamping cylinder drives the jaw axis rotation of backstay dorsad, thereby make jaw stably push against the inwall clamping pipe fitting of pipe fitting, clamping device slides to machining cell, and backstay pushes against pipe fitting and pipe fitting is pushed to machining cell fixing pipe fitting so that processing; On the second end of backstay, be also provided with sealing ring, for preventing that the cooling water or other fluid of machining cell is along the inner-walls of duct outflow of hollow.
the utility model adopts above structure, tool has the following advantages: 1, by cylinder, control clamping device and slide, both can clamp pipe fitting and be convenient to processing, can automatically pipe fitting be pushed to machining cell one by one again, by having the feeding mechanism of tilting table terrace, pipe fitting is can be one by one continuous enters loading device, realized the automatic charging of pipe fitting process equipment, automaticity is high, makes the pipe fitting processing can mass production, and operating efficiency improves; 2, stock supporting mechanism relatively support slide up and down, can according to the caliber of pipe fitting to be processed, regulate the height of stock supporting mechanism, make pipe fitting all the time with the processing plane of machining cell in same level, can be adapted to the material loading of different tube diameters scope pipe fitting; 3, the axis that the jaw of backstay the second end can relative positioning bar rotates, and can adjust according to the internal diameter of pipe fitting the angle of its rotation, for the pipe fitting of multiple internal diameter, all can firmly clamp.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of the feeding device of pipe fitting process equipment of the present utility model;
accompanying drawing 2 is the rearview of the feeding device of pipe fitting process equipment of the present utility model;
the structural representation that accompanying drawing 3 is clamping device of the present utility model;
accompanying drawing 4 is that clamping device of the present utility model is along the view perpendicular to pipe fitting throughput direction;
accompanying drawing 5 is that feeding mechanism of the present utility model is along the view of pipe fitting throughput direction;
the structural representation that accompanying drawing 6 is stock supporting mechanism of the present utility model.
in figure: 1, support; 11, guide rail;
2, feeding mechanism; 21 push rods; 22, upper feeding plate; 221, the first end of upper feeding plate; 222, the second end of upper feeding plate; 23, lower feeding plate; 231, the first end of lower feeding plate; 232, the second end of lower feeding plate; 24, connecting rod; 25, push rod cylinder;
3, stock supporting mechanism; 31, connecting rod; 32, supporting base; 321, groove;
4, clamping device; 41, slide; 42, rotating shaft; 43, backstay; 431, contiguous block; 432, jaw; 44, block; 45, hold out against cylinder; 46, rotary cylinder; 47, clamping cylinder; 48, sealing ring;
5, pipe fitting.
The specific embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be those skilled in the art will recognize that, protection domain of the present utility model is made to more explicit defining.
shown in accompanying drawing 1, accompanying drawing 2, a kind of feeding device of pipe fitting process equipment, described pipe fitting process equipment has machining cell, and described feeding device comprises the feeding mechanism 2 that is arranged on support 1 for inputting one by one pipe fitting 5, for accepting the stock supporting mechanism 3 of feeding mechanism 2 pipe fitting of inputting 5 and for clamping the pipe fitting 5 on described stock supporting mechanism 3 and being delivered to the clamping device 4 of machining cell.
with reference to accompanying drawing 3, shown in accompanying drawing 4, described support 1 has the guide rail 11 extending along pipe fitting throughput direction, described clamping device 4 is mounted slidably on described guide rail 11, described clamping device 4 is mounted slidably the slide 41 on guide rail 11, be arranged on actively the backstay 43 on described slide 41, described backstay 43 has first end and the second end for pipe fitting is pushed against being connected with described slide 41, on described slide 41, be provided with and hold out against cylinder 45, be used for driving backstay 43 to move to push against pipe fitting, in the course of conveying of pipe fitting, the described cylinder 45 of holding out against drives backstays 43 to push against pipe fitting 5 to move along its throughput direction.
described clamping device 4 also comprises block 44 and the rotary cylinder 46 being fixedly installed on described slide 41, on the first end of described backstay 43, be fixedly installed a contiguous block 431, described contiguous block 431 is rotated and is connected with slide 41 by a rotating shaft 42, described backstay 43 is between described block 44 and machining cell, the delivery track of described rotating shaft 42 and pipe fitting is in same level, described clamping device 4 has two operating positions, when first job position, described rotary cylinder 46 drive backstays 43 dorsad stock supporting mechanism 3 turn to the top of rotating shaft 42, described block 44 maintain an equal level with the delivery track of pipe fitting (herein fair refer to the surface of the center of block 44 and the delivery track of pipe fitting maintain an equal level or approach fair), and described block 44 promotes pipe fitting and moves a certain distance to machining cell, when second operating position, described rotary cylinder 46 drives backstay 43 to rotate towards stock supporting mechanism 3, the delivery track of described backstay 43 and pipe fitting in maintaining an equal level (herein fair refer to the surface of the center of backstay 43 and the delivery track of pipe fitting maintain an equal level or approach fair), and described backstay 43 fixing pipe fittings pushed to machining cell.
the second end of described backstay 43 has two can, towards the jaw 432 with deviating from described backstay 43 axial lines rotations, also be provided with the clamping cylinder 47 for driving described jaw 432 to rotate on described slide 41.On the second end of described backstay 43, be provided with and prevent that the cooling water of machining cell is along the sealing ring 48 of pipe fitting refluence.
shown in accompanying drawing 5, described feeding mechanism 2 comprises a plurality of push rods 21, a plurality of upper feeding plate 22 and lower feeding plates 23 that are fixedly installed on described support 1, described upper feeding plate 22 is between described stock supporting mechanism 3 and lower feeding plate 23, described upper feeding plate 22 has the first end 221 that is connected with lower feeding plate 23 and near the second end 222 of stock supporting mechanism 3, described upper feeding plate 22 is downward-sloping gradually to the second end 222 from its first end 221, the running flitch 23 has goes up the first end 231 of feeding plate 22 and the second end 232 being connected with upper feeding plate 22 dorsad, the running flitch 23 is downward-sloping gradually to the second end 232 from its first end 231, the first end 221 of described upper feeding plate 22 is higher than the second end 232 of lower feeding plate 23, described push rod 21 is slidably arranged in the second end 232 of lower feeding plate 23, described push rod 21 can vertically descend feeding plate 23 to slide relatively, the upper surface of described push rod 21 is downward-sloping gradually along the direction of the feeding plate 22 that makes progress from the running flitch 23, described push rod 21 has two positions, when first position, the upper surface of the upper surface of push rod 21 and upper feeding plate 22 joins, when second position, the upper surface of push rod 21 is lower than the upper surface of lower feeding plate 23 or join with it.Described push rod 21 is connected by a connecting rod and push rod 21 cylinders.Described push rod 21 edges must not be more than or equal to two times of pipe fitting diameter perpendicular to the thickness of pipe fitting throughput direction, be preferably the diameter that is less than or equal to pipe fitting.
shown in accompanying drawing 2, accompanying drawing 6, described loading device comprises the cramp bar 31 that can vertically be slidably arranged on support 1, a plurality of supporting base 32 being fixedly installed on described cramp bar 31, on each supporting base 32, be provided with for holding the groove 321 of pipe fitting 5 the common delivery track that forms pipe fitting 5 of each groove 321.
operation principle of the present utility model is as follows: the pipe fitting as raw material completes the processing such as severing, cutting, expander, punching via pushing to machining cell by clamping device 4 after feeding mechanism 2, stock supporting mechanism 3 successively;
in feeding mechanism 2, operating personnel are placed in pipe fitting on lower feeding plate 23 continuously, the upper surface of push rod 21 is lower than the upper surface of upper feeding plate 22 or join with it, pipe fitting is arranged to first end successively by the second end of lower feeding plate 23 by himself Action of Gravity Field, push rod 21 air cylinder driven push rod 21 upward slidings join to the upper surface of push rod 21 and the upper surface of upper feeding plate 22, and pipe fitting departs from push rod 21, via the upper surface of upper feeding plate 22, rolls in the delivery track of stock supporting mechanism 3; When pipe fitting enters after delivery track, push rod 21 cylinders are pulled back and are driven push rod 21 to slide down to its upper surface not higher than the upper surface of lower feeding plate 23, follow-up pipe fitting continues to roll into the upper surface of push rod 21, to machining cell, by after the pipe fitting completion of processing on stock supporting mechanism 3, push rod 21 continues to lift and repeats above-mentioned action;
in stock supporting mechanism 3, must according to the caliber of pipe fitting adjust each supporting base 32 height so that the processing plane of the delivery tracks that supporting base 32 forms and machining center in same level;
in clamping device 4, when first job position, rotary cylinder 46 driving backstays 43 deviate from stock supporting mechanism 3 rotations does not interfere backstay 43 and the delivery track of pipe fitting, pipe fitting can be rolled on stock supporting mechanism 3 by upper feeding plate 22, clamping device 4 slides to machining cell, block 44 promotion pipe fittings on slide 41 move and make pipe fitting move one end distance to machining cell, and this distance is not less than the length of backstay 43, and clamping device 4 slips back to initial position; When second operating position, rotary cylinder 46 drives backstay 43 to rotate and make backstay 43 and pipe fitting in same level towards stock supporting mechanism 3, the jaw 432 that holds out against cylinder 45 driving backstays 43 probes into the inwall of pipe fitting, clamping cylinder 47 drives the jaw 432 axis rotation of backstay 43 dorsad, thereby make jaw 432 stably push against the inwall clamping pipe fitting of pipe fitting, clamping device 4 slides to machining cell, and backstay 43 pushes against pipe fitting and pipe fitting is pushed to machining cell fixing pipe fitting so that processing; On the second end of backstay 43, be also provided with sealing ring 48, for preventing that the cooling water or other fluid of machining cell is along the inner-walls of duct outflow of hollow.
the utility model adopts above structure, tool has the following advantages: 1, by cylinder, control clamping device and slide, both can clamp pipe fitting and be convenient to processing, can automatically pipe fitting be pushed to machining cell one by one again, by having the feeding mechanism of tilting table terrace, pipe fitting is can be one by one continuous enters loading device, realized the automatic charging of pipe fitting process equipment, automaticity is high, makes the pipe fitting processing can mass production, and operating efficiency improves; 2, stock supporting mechanism relatively support slide up and down, can according to the caliber of pipe fitting to be processed, regulate the height of stock supporting mechanism, make pipe fitting all the time with the processing plane of machining cell in same level, can be adapted to the material loading of different tube diameters scope pipe fitting; 3, the axis that the jaw of backstay the second end can relative positioning bar rotates, and can adjust according to the internal diameter of pipe fitting the angle of its rotation, for the pipe fitting of multiple internal diameter, all can firmly clamp.
the blanking device of pipe fitting process equipment of the present utility model can be applicable in multiple pipe fitting automatic processing device, as pipe fitting cutting machine, pipe fitting expanding machine, pipe fitting puncher etc.
above-described embodiment is only explanation technical conceive of the present utility model and feature; it is a kind of preferred embodiment; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to Spirit Essence of the present utility model change or modify, within all should being encompassed in protection domain of the present utility model.

Claims (10)

1. the feeding device of a pipe fitting process equipment, described pipe fitting process equipment has machining cell, described feeding device comprise be arranged on support for inputting the feeding mechanism of pipe fitting, for accept pipe fitting and provide pipe fitting delivery track stock supporting mechanism and for clamping the pipe fitting on described stock supporting mechanism and being delivered to the clamping device of machining cell, it is characterized in that: described support has the guide rail extending along pipe fitting throughput direction, described clamping device comprises the slide being mounted slidably on guide rail, be arranged on actively on described slide backstay, described backstay has first end and the second end for pipe fitting is pushed against being connected with described slide.
2. the feeding device of pipe fitting process equipment according to claim 1, is characterized in that: on described slide, be provided with and hold out against cylinder, for driving backstay to move to push against pipe fitting.
3. the feeding device of pipe fitting process equipment according to claim 1, it is characterized in that: described clamping device also comprises block and the rotary cylinder being fixedly installed on described slide, on the first end of described backstay, be fixedly installed a contiguous block, described contiguous block is rotated and is connected with slide by a rotating shaft, the axial line of this rotating shaft and the axial line of backstay are not coaxial, described backstay is between described block and machining cell, described clamping device has two operating positions, when first job position, described rotary cylinder drives backstay stock supporting mechanism rotation dorsad, the delivery track of described block and pipe fitting maintains an equal level, and described block promotes pipe fitting and moves a certain distance to machining cell, when second operating position, described rotary cylinder drives backstay to rotate towards stock supporting mechanism, and the delivery track of described backstay and pipe fitting maintains an equal level, and described backstay fixing pipe fitting is also pushed to machining cell.
4. the feeding device of pipe fitting process equipment according to claim 3, is characterized in that: the delivery track of described rotating shaft and pipe fitting maintains an equal level, and when first job position, described backstay turns to the top of rotating shaft.
5. the feeding device of pipe fitting process equipment according to claim 1, it is characterized in that: the second end of described backstay at least has two can, towards the jaw with deviating from described backstay axial line rotation, also be provided with the clamping cylinder for driving described jaw to rotate on described slide.
6. the feeding device of pipe fitting process equipment according to claim 1, it is characterized in that: described feeding mechanism comprises a plurality of push rods, a plurality of upper feeding plate and lower feeding plates that are fixedly installed on described support, described upper feeding plate is between described stock supporting mechanism and lower feeding plate, described upper feeding plate has the first end that is connected with lower feeding plate and near the second end of stock supporting mechanism, described upper feeding plate is downward-sloping gradually to the second end from its first end, the running flitch has goes up the first end of feeding plate and the second end being connected with upper feeding plate dorsad, the running flitch is downward-sloping gradually to the second end from its first end, the first end of described upper feeding plate is higher than the second end of lower feeding plate, described push rod is slidably arranged in the second end of lower feeding plate, the upper surface of described push rod is downward-sloping gradually along the direction of the feeding plate that makes progress from the running flitch, described push rod has two positions, when first position, the upper surface of push rod and the upper surface of upper feeding plate join, when second position, the upper surface of push rod is lower than the upper surface of lower feeding plate or join with it.
7. the feeding device of pipe fitting process equipment according to claim 6, is characterized in that: described push rod is connected by a connecting rod and push rod cylinder.
8. the feeding device of pipe fitting process equipment according to claim 6, is characterized in that: described push rod can vertically descend feeding plate to slide relatively.
9. the feeding device of pipe fitting process equipment according to claim 1, it is characterized in that: described loading device comprises the cramp bar that can vertically be slidably arranged on support, a plurality of supporting base being fixedly installed on described cramp bar, on each supporting base, be provided with for holding the groove of pipe fitting, each groove forms the delivery track of pipe fitting jointly.
10. the feeding device of pipe fitting process equipment according to claim 1, is characterized in that: on the second end of described backstay, be provided with and prevent that the cooling water of machining cell is along the sealing ring of pipe fitting refluence.
CN201320417145.2U 2013-07-15 2013-07-15 Feeding device of pipe fitting machining device Withdrawn - After Issue CN203449073U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320417145.2U CN203449073U (en) 2013-07-15 2013-07-15 Feeding device of pipe fitting machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320417145.2U CN203449073U (en) 2013-07-15 2013-07-15 Feeding device of pipe fitting machining device

Publications (1)

Publication Number Publication Date
CN203449073U true CN203449073U (en) 2014-02-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320417145.2U Withdrawn - After Issue CN203449073U (en) 2013-07-15 2013-07-15 Feeding device of pipe fitting machining device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331387A (en) * 2013-07-15 2013-10-02 旭东机械(昆山)有限公司 Feeding device of pipe fitting machining device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331387A (en) * 2013-07-15 2013-10-02 旭东机械(昆山)有限公司 Feeding device of pipe fitting machining device

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AV01 Patent right actively abandoned

Granted publication date: 20140226

Effective date of abandoning: 20150422