CN204584507U - Butt welding machine and grip device thereof - Google Patents
Butt welding machine and grip device thereof Download PDFInfo
- Publication number
- CN204584507U CN204584507U CN201520289551.4U CN201520289551U CN204584507U CN 204584507 U CN204584507 U CN 204584507U CN 201520289551 U CN201520289551 U CN 201520289551U CN 204584507 U CN204584507 U CN 204584507U
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- chuck
- rotor
- positioning pin
- workpiece
- butt
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims description 13
- 238000003032 molecular docking Methods 0.000 abstract description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 24
- 238000005219 brazing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000010953 base metal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of butt welding machine, comprises board, is arranged on grip device on described board and welding machine.Grip device comprises the first chuck assembly, the second chuck assembly, at least one biasing device and chuck open-and-close mechanism.Biasing device is connected between board with a corresponding chuck assembly to apply towards the bias voltage of another chuck assembly described corresponding chuck assembly.Chuck open-and-close mechanism comprises rotor, and at least one of them is connected for rotor and the first chuck assembly and the second chuck assembly.Rotor can be opened between extreme position and a docking extreme position one and rotate, and does relative movement to drive described first chuck assembly and the second chuck assembly.Open corresponding first chuck assembly of extreme position and the second chuck assembly ultimate range wherein on axis, corresponding first chuck assembly of docking extreme position and the second chuck assembly minimum range wherein on axis.
Description
Technical Field
The invention relates to a welding fixture, in particular to a butt welding machine and a fixture device thereof.
Background
The butt welding machine realizes butt joint and welding of two workpieces. Butt-joining and welding taps and spring steel bars is one application.
A high-precision screw tap is required by a standard part manufacturer in the process of manufacturing the nut, the screw tap is required to be welded on a spring steel bar bent by 90 degrees with the same diameter, so that automatic batch tapping is realized, and the requirement on the coaxiality of butt joint is less than or equal to 0.1 mm.
The existing butt welding of screw taps and spring steel has two modes:
1. after the alignment is manually carried out through the simple clamp, the butt joint position is heated by oxyacetylene flame, and copper welding wires are filled for connection after the temperature reaches a certain value. The disadvantages of this coupling: firstly, the clamp is simple, and the coaxiality cannot be ensured; secondly, the welding quality of manual flame brazing is unstable, and skilled workers are needed; thirdly, the heat affected zone of the flame is large, which can reduce the service life of the tap.
2. And (3) carrying out repair welding reinforcement by using an electric welding rod after the initial positioning welding of the resistance butt welding machine or directly carrying out welding by using the electric welding rod after the positioning by using a simple clamp. The disadvantage of this kind of connection is also that the axiality can not be guaranteed, the screw tap after welding electrode repair welding can not break at the butt joint when the condition that the screw tap breaks off in the use process, but the screw tap end near the interface breaks off, and the fracture is irregular, can not carry out the secondary reconnection, and after reaching screw tap life, when needing to separate with the spring steel, need cut off a part of spring steel, and the spring steel also needs often to be changed like this.
Therefore, how to design a butt welder which has small coaxiality deviation of the welded workpiece, can only be broken on the original joint surface even if the screw tap is broken in the using process, does not influence the repeated use of the spring steel, has stable and reliable welding and simple operation is the aim of the invention.
Disclosure of Invention
Accordingly, the present invention is directed to a butt welding machine and a clamping device thereof to solve at least one of the above-mentioned problems.
The invention provides a clamp device of a butt welding machine, which is arranged on a machine table of the butt welding machine and is used for butting a first workpiece and a second workpiece to be welded. Wherein, first chuck mount pad supports with sliding on the butt welder board, first chuck is installed be used for the centre gripping on the first chuck mount pad treat welded first work piece, second chuck mount pad supports with sliding on the butt welder board, the second chuck is installed be used for the centre gripping on the second chuck mount pad treat welded second work piece, the movable jaw of second chuck is just right the movable jaw of first chuck, first biasing means elasticity is supported and is pressed first chuck mount pad is in order to right first chuck mount pad applys the bias voltage of orientation second chuck mount pad, second biasing means elasticity is supported and is pressed second chuck mount pad in order to right second chuck mount pad applys the bias voltage of orientation first chuck mount pad, the chuck mechanism of opening and shutting with first chuck mount pad and second chuck mount pad are connected, configured to drive the first and second chuck mounts between an open position and an abutting position.
In one embodiment, the first chuck and the second chuck are three-jaw self-centering chucks.
In one embodiment, the clamping device comprises a pair of parallel guide rods fixed on the butt welder table, and the first chuck mounting seat and the second chuck mounting seat are slidably connected with the pair of parallel guide rods.
In an embodiment, the chuck mechanism that opens and shuts including rotationally being connected to the rotor of butt welder board, the rotor can rotate between an opening extreme position and a butt joint extreme position, the rotor with first chuck mount pad and second chuck mount pad are connected, make and work as the rotor is in open extreme position with when rotating between the butt joint extreme position, the rotor drives first chuck mount pad and second chuck mount pad move towards the direction that is close to each other or keeps away from each other.
In one embodiment, the chuck opening and closing mechanism includes an operating handle fixed to the rotating body to pull the rotating body.
In an embodiment, be fixed with first locating pin and second locating pin on the rotor, first locating pin and second locating pin are in the footpath of rotor is for the rotation centrosymmetric setting of rotor, first locating pin corresponds to first chuck is used for the location the terminal surface of the first work piece in the first chuck, the second locating pin corresponds to the second chuck is used for the location the terminal surface of the second work piece in the second chuck, works as the rotor is located when opening the extreme position, first locating pin and second locating pin are located on the axis of first chuck and second chuck.
In one embodiment, the first and second alignment pins are perpendicular to the rotor.
In one embodiment, the rotor is located between the first and second chuck mounts.
In another aspect, the present invention further provides a butt welding machine, including a machine table, a fixture device disposed on the machine table, and a welding machine, where the fixture device is configured to butt a first workpiece and a second workpiece to be welded, the welding machine is configured to weld the first workpiece and the second workpiece already in a butt joint state, and the fixture device includes a first chuck device, a second chuck device, at least one biasing device, and a chuck opening and closing mechanism. Wherein,
the first chuck device and the second chuck device are respectively used for clamping the first workpiece and the second workpiece, have coaxial central axes and can relatively move towards the directions close to or away from each other along the central axes;
at least one biasing device connected between the machine table and a corresponding one of the chuck devices to bias the corresponding chuck device toward the other chuck device; and
the chuck opening and closing mechanism comprises a rotating body which is rotatably connected to the machine table, the rotating body is connected with at least one of the first chuck device and the second chuck device, the rotating body can rotate between an opening limit position and a butting limit position to drive the first chuck device and the second chuck device to move relatively, the opening limit position corresponds to the maximum distance between the first chuck device and the second chuck device on the central axis of the first chuck device and the second chuck device, and the butting limit position corresponds to the minimum distance between the first chuck device and the second chuck device on the central axis of the first chuck device and the second chuck device.
In an embodiment, the rotor is fixed with first locating pin and second locating pin, first locating pin and second locating pin are in the radial of rotor is for the rotation centrosymmetric setting of rotor, first locating pin is used for the location the terminal surface of the first work piece in the first chuck device, the second locating pin is used for the location the terminal surface of the second work piece in the second chuck, works as the rotor is located when opening the extreme position, first locating pin and second locating pin are located the axis of first chuck device and second chuck device.
Compared with the prior art, the embodiment has the following advantages: in some embodiments, the three-jaw chuck of the clamp part of the butt welding machine provided by the invention can effectively ensure the coaxiality of parts after welding, the stable welding effect can be ensured by a high-frequency induction brazing process, the welding hardly has any influence on base materials (screw taps and spring steel) due to the small and concentrated heat affected zone of the welding, and the strength and the melting point of brazing filler metal added during the welding are lower than those of the base materials, so that the screw taps and the spring steel can be only disconnected from the original joint surface even if the brazing filler metal is broken in the using process, and the repeated welding is not influenced at all; when the screw tap needs to be separated after the service life of the screw tap is reached, the screw tap can be easily disconnected from the original combined surface only by reheating the clamp, and the re-welding use of the spring steel is not influenced completely.
Drawings
FIG. 1 is a schematic view of a butt welder in a state of being equipped with a tap and spring steel.
Fig. 2 is a schematic view of a structure in which a brazing material is attached to a tap.
Fig. 3 is a schematic view of the structure of the butt welder in a welding state.
FIG. 4 is a schematic illustration of a tap and spring steel.
Detailed Description
Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in other forms of implementation. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.
As shown in fig. 1 to 4, the butt welding machine includes a machine table 2, a fixture device disposed on the machine table 2, and a welding machine, wherein the fixture device is used for butt-jointing a first workpiece 6 and a second workpiece 8 to be welded, and the welding machine is used for welding the first workpiece 6 and the second workpiece 8 which are already in a butt-jointed state. The welder may be any suitable type of welder known in the art, such as a high frequency induction welder.
In the illustrated embodiment, and referring also to fig. 4, the first workpiece 6 is exemplified by a tap and the second workpiece 8 is exemplified by spring steel. After reading this description, it will be understood by those skilled in the art that the butt welder and its clamping device of the present invention can be applied to other workpieces to be welded, in particular bars.
The clamping device comprises a first clamping chuck device 19, a second clamping chuck device 23, at least one biasing device and a clamping chuck opening and closing mechanism 9.
The first chuck means 19 and the second chuck means 23 are for holding the tap 6 and the spring steel 8, respectively, and the first chuck means 19 and the second chuck means 23 have coaxial central axes and are relatively movable in directions toward and away from each other along the central axes thereof. Specifically, the first chuck device 19 includes a first chuck mount 18 slidably supported on the butt welder table 2 and a first chuck 20 fixedly mounted on the first chuck mount 18 to hold the tap 6 to be welded; the second chuck device 23 includes a second chuck mount 22 slidably supported on the butt welder table 2 and a second chuck 24 fixedly mounted on the second chuck mount 22 to hold the spring steel 8 to be welded. In the particular embodiment shown, the first chuck 20 and the second chuck 24 are each embodied as a three-jaw self-centering chuck, with the movable jaws of the second chuck 24 facing the movable jaws of the first chuck 20. The fixture apparatus further comprises a pair of parallel guide rods 34 fixed to the butt welder machine table 2, the first chuck mount 18 and the second chuck mount 22 being slidably connected with the pair of parallel guide rods 34. Thus, the first chuck means 19 and the second chuck mounting means 23 are relatively moved on the guide rods.
At least one biasing device is connected between the machine table 2 and a corresponding one of the chuck devices to bias the corresponding chuck device toward the other chuck device. In the particular embodiment shown, the biasing device includes a first biasing device 26 and a second biasing device 28. Wherein the first biasing means 26 resiliently urges against the first chuck mount 18 to bias the first chuck mount 18 towards the second chuck mount 22; the second biasing means 28 resiliently urges against the second chuck mount 22 to bias the second chuck mount 22 towards the first chuck mount 18. In the present embodiment, the first and second biasing devices 26 and 28 each employ a compression spring. It should be understood that the present invention is not limited to the first and second biasing devices 26, 28 being compression springs, and may be embodied as other resilient devices.
The chuck opening and closing mechanism 9 comprises a rotating body 11 which is rotatably connected to the machine table 2, and the rotating body 11 is connected with at least one of the first chuck device and the second chuck device. In the particular embodiment shown, the chuck opening and closing mechanism 9 is coupled to the first chuck mount 18 and the second chuck mount 22 and is configured to drive the first chuck mount 18 and the second chuck mount 22 between an open limit position and a butt limit position.
In the embodiment shown, the rotor 11 is rotatable between the open limit position and the abutment limit position to drive the first chuck means 19 and the second chuck means 23 in the above-mentioned relative movement. Wherein the open limit position corresponds to a maximum distance of the first chuck means 19 and the second chuck means 23 on their central axes, and the docking limit position corresponds to a minimum distance of the first chuck means 19 and the second chuck means 23 on their central axes.
In the illustrated embodiment, the rotor 11 is disk-shaped, and when the rotor 11 rotates between the open limit position and the abutment limit position, the disk-shaped rotor moves the first chuck mount 18 and the second chuck mount 22 toward and away from each other.
In the illustrated embodiment, the chuck opening and closing mechanism 9 further includes an operating handle 32 fixed to the rotor 11 to pull the rotor 11, and the user can rotate the rotor 11 between the opening limit position and the abutment limit position by pulling the operating handle 32.
The rotor 11 is fixed with a first positioning pin 14 and a second positioning pin 16, and the first positioning pin 14 and the second positioning pin 16 are symmetrically arranged with respect to the rotation center of the rotor 11 in the radial direction of the rotor 11. Wherein the first locating pins 14 are used to locate the end face of the first workpiece 6 in the first chuck means and the second locating pins 16 are used to locate the end face of the second workpiece 8 in the second chuck means. When the rotating body 11 is located at the opening limit position, the first and second positioning pins 14 and 16 are located on the central axis of the first and second chuck means. And when the rotor is rotated away from the open limit position, the positioning pin is rotated away from the central axis.
The specific operation flow of the butt welding machine from the opening limit position to the butt joint limit position is described by taking a welding tap and spring steel as examples:
FIG. 1 is a schematic view of a butt welder in a state of being equipped with a tap and spring steel. As shown in fig. 1, first, the operating handle 32 is swung counterclockwise to the right limit position (i.e. the chuck opening and closing mechanism is located at the open limit position), and the first chuck mounting seat 18 and the second chuck mounting seat 22 respectively compress their corresponding compression springs and synchronously pull them apart; then, the screw tap 36 is arranged in the first chuck 20, the end surface of the screw tap 36 is positioned by the first positioning pin 14, and the screw tap 36 is clamped by manually operating a knob on the first chuck 20; the spring steel 38 is loaded into the second chuck with its end face positioned by the second locating pin 16 and the spring steel 38 is clamped by manually operating a knob on the second chuck 24.
Fig. 2 is a schematic view of a structure in which a brazing material is attached to a tap. As shown in fig. 2, the operating handle 32 is swung clockwise to a middle position, the first chuck 20 and the second chuck 24 are synchronously moved to the middle, the first positioning pin 14 and the second positioning pin 16 are simultaneously rotated away from the center line position to expose the end surfaces of the workpiece to be welded, i.e., the tap and the spring steel, and then the brazing filler metal 40 is attached to the end surface of the tap 36.
Fig. 3 is a schematic view of the structure of the butt welder in a welding state. As shown in fig. 3, the operating handle 32 is continuously swung clockwise to the left limit position (i.e. the chuck opening and closing mechanism is located at the butt joint limit position), the first chuck 20 and the second chuck 24 are continuously and synchronously moved towards the middle, the compression spring applies a biasing force to the corresponding chuck mounting seat to enable the chuck mounting seat to be relatively close, the tap 36 and the spring steel 38 are tightly abutted together under the elastic biasing force of the compression spring, and the abutting end is located in the high-frequency induction coil 4 of the welding machine, so that the welding machine can conveniently weld workpieces.
And after the steps are finished, the high-frequency induction welding machine is used for welding, after the welding is finished, the knob is unscrewed to loosen the first chuck 20 and the second chuck 24, the welded workpiece is taken out, the actions are repeated, and the welding is continued.
In the above embodiment, the two biasing means bias the two chuck means, respectively. In other embodiments, only one biasing device may be used to bias one chuck device toward the other chuck device, while the other chuck device is fixed to the machine. The chuck opening and closing mechanism is only connected with the biased chuck device, namely, the biased chuck device is only driven to move through the rotation of the chuck opening and closing mechanism.
In conclusion, the three-jaw chuck of the clamp part of the special butt joint machine provided by the invention can effectively ensure the coaxiality of parts after welding, the stable welding effect can be ensured by the high-frequency induction brazing process, the welding hardly has any influence on the base metal (the screw tap and the spring steel) due to the small and concentrated heat affected zone of the welding, and the strength and the melting point of the brazing filler metal added during the welding are lower than those of the base metal, so that the screw tap and the spring steel can be only disconnected from the original joint surface in the using process, and the repeated welding is not influenced at all; when the screw tap needs to be separated after the service life of the screw tap is reached, the screw tap can be easily disconnected from the original combined surface only by reheating the clamp, and the re-welding use of the spring steel is not influenced completely.
The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. The utility model provides a fixture device of butt welder, sets up and is used for butt joint first work piece and the second work piece of waiting to weld on the butt welder board, its characterized in that, fixture device includes:
a first chuck mount slidably supported on the butt welder machine table;
the first chuck is arranged on the first chuck mounting seat and used for clamping the first workpiece to be welded;
a second chuck mount slidably supported on the butt welder machine table;
the second chuck is arranged on the second chuck mounting seat and used for clamping the second workpiece to be welded, and the movable clamping jaws of the second chuck are opposite to the movable clamping jaws of the first chuck;
a first biasing means resiliently urged against the first chuck mount to bias the first chuck mount towards the second chuck mount;
a second biasing means resiliently urged against the second chuck mount to bias the second chuck mount towards the first chuck mount; and
a chuck opening and closing mechanism coupled to the first and second chuck mounts and configured to drive the first and second chuck mounts between an open position and an engaged position.
2. The butt welder clamping apparatus of claim 1, wherein the first chuck and the second chuck are three-jaw self-centering chucks.
3. The butt welder clamping apparatus of claim 1, wherein the clamping apparatus comprises a pair of parallel guide rods fixed to the butt welder table, the first and second chuck mounts being slidably connected to the pair of parallel guide rods.
4. The clamping device of claim 1, wherein said chuck opening and closing mechanism comprises a rotor rotatably connected to said butt welder frame, said rotor being rotatable between an open limit position and a butt limit position, said rotor being connected to said first and second chuck mounts such that said rotor moves said first and second chuck mounts toward and away from each other as said rotor rotates between said open limit position and said butt limit position.
5. The clamping device of a butt welder according to claim 4, wherein said chuck opening and closing mechanism includes an operating handle fixed to said rotor to pull said rotor.
6. The clamping device for a butt welder according to claim 4, wherein a first positioning pin and a second positioning pin are fixed to the rotor, the first positioning pin and the second positioning pin are symmetrically arranged with respect to a rotation center of the rotor in a radial direction of the rotor, the first positioning pin corresponds to the first chuck for positioning an end surface of a first workpiece in the first chuck, the second positioning pin corresponds to the second chuck for positioning an end surface of a second workpiece in the second chuck, and the first positioning pin and the second positioning pin are located on a central axis of the first chuck and the second chuck when the rotor is located at the opening limit position.
7. The butt welder jig device according to claim 6, wherein the first positioning pin and the second positioning pin are perpendicular to the rotator.
8. The butt welder fixture device according to claim 4, wherein the rotor is located between the first chuck mount and the second chuck mount.
9. A butt welder comprises a machine table, a clamp device and a welder, wherein the clamp device and the welder are arranged on the machine table, the clamp device is used for butt joint of a first workpiece and a second workpiece to be welded, the welder is used for welding the first workpiece and the second workpiece which are in a butt joint state, and the clamp device comprises:
the first chuck device and the second chuck device are respectively used for clamping the first workpiece and the second workpiece, have coaxial central axes and can relatively move towards the directions close to or away from each other along the central axes;
at least one biasing device connected between the machine table and a corresponding one of the chuck devices to bias the corresponding chuck device toward the other chuck device; and
the chuck opening and closing mechanism comprises a rotating body which is rotatably connected to the machine table, the rotating body is connected with at least one of the first chuck device and the second chuck device, the rotating body can rotate between an opening limit position and a butting limit position to drive the first chuck device and the second chuck device to move relatively, the opening limit position corresponds to the maximum distance between the first chuck device and the second chuck device on the central axis of the first chuck device and the second chuck device, and the butting limit position corresponds to the minimum distance between the first chuck device and the second chuck device on the central axis of the first chuck device and the second chuck device.
10. The butt welder according to claim 9, wherein a first positioning pin and a second positioning pin are fixed to the rotor, the first positioning pin and the second positioning pin are symmetrically arranged with respect to a rotational center of the rotor in a radial direction of the rotor, the first positioning pin is used to position an end surface of a first workpiece in the first chuck means, the second positioning pin is used to position an end surface of a second workpiece in the second chuck means, and the first positioning pin and the second positioning pin are located on a central axis of the first chuck means and the second chuck means when the rotor is located at the opening limit position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289551.4U CN204584507U (en) | 2015-05-07 | 2015-05-07 | Butt welding machine and grip device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289551.4U CN204584507U (en) | 2015-05-07 | 2015-05-07 | Butt welding machine and grip device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204584507U true CN204584507U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520289551.4U Withdrawn - After Issue CN204584507U (en) | 2015-05-07 | 2015-05-07 | Butt welding machine and grip device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204584507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801814A (en) * | 2015-05-07 | 2015-07-29 | 苏州安嘉自动化设备有限公司 | Butt welding machine and fixture device thereof |
| WO2016176865A1 (en) * | 2015-05-07 | 2016-11-10 | 苏州安嘉自动化设备有限公司 | Butt welding machine and clamp device thereof |
-
2015
- 2015-05-07 CN CN201520289551.4U patent/CN204584507U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801814A (en) * | 2015-05-07 | 2015-07-29 | 苏州安嘉自动化设备有限公司 | Butt welding machine and fixture device thereof |
| WO2016176865A1 (en) * | 2015-05-07 | 2016-11-10 | 苏州安嘉自动化设备有限公司 | Butt welding machine and clamp device thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20160831 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |