CN204867880U - Multi freedom welding set that links - Google Patents

Multi freedom welding set that links Download PDF

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Publication number
CN204867880U
CN204867880U CN201520522236.1U CN201520522236U CN204867880U CN 204867880 U CN204867880 U CN 204867880U CN 201520522236 U CN201520522236 U CN 201520522236U CN 204867880 U CN204867880 U CN 204867880U
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China
Prior art keywords
support
axis
motor
welder
screw mandrel
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CN201520522236.1U
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Chinese (zh)
Inventor
李庆初
黄德武
袁江政
蒙胜
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Liuzhou Haite Dizhanse Automobile Parts Co Ltd
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Liuzhou Haite Dizhanse Automobile Parts Co Ltd
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Abstract

The utility model relates to a blast pipe welding field especially relates to a multi freedom welding set that links, and this multi freedom welding set that links includes base, blast pipe positioner and automatic welder, the base is connected blast pipe positioner with automatic welder. This multi freedom welding set that links's welder passes through triaxial motion location, and the location is accurate quick, and production efficiency is high.

Description

A kind of multiple-freedom linking welder
Technical field
The utility model relates to blast pipe welding field, particularly relates to a kind of multiple-freedom linking welder.
Background technology
Traditional blast pipe welding is all adopt manual welding, and human weld's production efficiency is low, poor working environment, and labour intensity is high.
Even if there are some multiple-freedom linking welders, but due to the accuracy of these devices bad, be difficult to accurately location, existing welding condition can not be met.
Utility model content
The purpose of this utility model there are provided a kind of multiple-freedom linking welder, have employed three driven off by shaft modes, blast pipe welder can be applied in automation equipment, solve human weld's production efficiency low, poor working environment, the problem that labour intensity is high.
The utility model is achieved in that a kind of multiple-freedom linking welder, this multiple-freedom linking welder comprises base, blast pipe positioner and automatic soldering device, described base connects described blast pipe positioner and described automatic soldering device, described automatic soldering device comprises X-axis welder, Y-axis mobile device, Z axis mobile device, described Y-axis mobile device drives described Z axis mobile device and described X-axis welder to move in Y direction, described Z axis mobile device drives described X-axis welder to move in described Z-direction, described X-axis welder comprises support, connect the motor of described support, screw mandrel, described support also comprises bearing block, described screw mandrel two ends are connected on described support by bearing block, described motor connects and drives described screw mandrel, described support is also provided with two parallel slideways, described X-axis welder also comprises welding gun, the X-axis movable stand of fixing described welding gun, described X-axis movable stand is also fixedly connected with the slide block that two pieces coordinate two described slideways respectively, described X-axis movable stand also comprises the threaded block be fixed on described X-axis movable stand, described threaded block is provided with the screw thread engaging described screw mandrel, described blast pipe positioner comprises the first support, connect the first angle and second angle of described first support, described blast pipe positioner also comprises the first clamping device connecting described first support, described first clamping device comprises the holddown groove laying blast pipe, be arranged on the 3rd cylinder be fixed on described first support of described holddown groove both sides, connect the clamp of described 3rd cylinder, described first support is also provided with the groove coordinating described clamp, described blast pipe positioner also comprises the second clamping device connecting described first support, described second clamping device comprises the second support connecting described first support, be fixed on the first cylinder on described second support, connect the chuck of described first cylinder piston, described blast pipe positioner also comprises the fixture be arranged between described first angle and described second angle, described fixture comprises the 3rd support connecting described first support, be fixed on the second cylinder on described 3rd support, connect the fixed block of described second cylinder.
Further technical scheme of the present utility model is: described blast pipe positioner also comprises whirligig, described whirligig comprises the 4th support, connects the rotating disk of described first support and described 4th support, the motor be fixed on described 4th support, described rotating disk one end is fixedly connected with described 4th support, and described motor connects and drives described rotating disk.
Further technical scheme of the present utility model is: chuck is also provided with auxiliary guide rail, and described second support is also provided with the through hole coordinating described auxiliary guide rail.
Further technical scheme of the present utility model is: described whirligig also comprises holder, described holder is fixed on described 4th support, described motor connects described 4th support by this holder, and described holder is provided with the through hole being beneficial to described motor crankshaft and passing through.
Further technical scheme of the present utility model is: described X-axis welder also comprises a set of and described motor, described screw mandrel, described bearing block, described welding gun and the motor, screw mandrel, bearing block, welding gun and the X-axis movable stand that are side by side connected to described support on identical with described X-axis movable stand.
Further technical scheme of the present utility model is: described slide block comprises slider body, and described slider body is provided with the breach engaging described slideway, and the top of described breach and the bottom of described breach are respectively equipped with tooth and lower tooth.
Further technical scheme of the present utility model is: described X-axis welder also comprises chuck, described chuck comprises contiguous block and chuck block, described chuck block is provided with cylindrical groove, described chuck block offers otch in one end of described cylindrical groove, vertical described cut sides is provided with the through hole of holding screw and the described holding screw of cooperation, the other end of described chuck block is provided with the projection of agreeing with described contiguous block, and the breach that described contiguous block is provided with connects two described chuck blocks.
Further technical scheme of the present utility model is: described Y-axis mobile device is identical with described Z axis mobile device structure, direction is different, these two kinds of mobile devices include motor, screw mandrel, nut, mobile platform, described motor connects and drives described screw mandrel, described screw mandrel coordinates and drives described nut, and described nut connects described mobile platform.
Further technical scheme of the present utility model is: described Y-axis mobile device comprises Y-axis support, connect the motor of described Y-axis support, connect described motor and by the described screw mandrel of described driven by motor, two parallel slideway, Y-axis mobile platforms, described Y-axis mobile device also comprises nut, screw mandrel described in described nut screw connection, described nut connects described mobile platform.
Further technical scheme of the present utility model is: described Z axis mobile device comprises Z axis support, connect the motor of described Z axis support, connect described motor and by the described screw mandrel of described driven by motor, two parallel slideway, Z axis mobile platforms, described Z axis mobile device also comprises nut, screw mandrel described in described nut screw connection, described nut connects described mobile platform.
The beneficial effects of the utility model are: the welding gun of this multiple-freedom linking welder is located by three-axis moving, and accurate positioning is quick, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is the multiple-freedom linking welder stereogram that the utility model embodiment provides.
Fig. 2 is the automatic soldering device stereogram that the utility model embodiment provides.
Fig. 3 is the Y-axis mobile device stereogram that the utility model embodiment provides.
Fig. 4 is the Y-axis mobile platform stereogram that the utility model embodiment provides.
Fig. 5 is the X-axis welder stereogram that the utility model embodiment provides.
Fig. 6 is the slide block stereogram that the utility model embodiment provides.
Fig. 7 is the chuck stereogram one that the utility model embodiment provides.
Fig. 8 is the chuck stereogram two that the utility model embodiment provides.
Fig. 9 is the blast pipe positioner stereogram that the utility model embodiment provides.
Figure 10 is the whirligig stereogram mentioned in the utility model.
Figure 11 is the second angle stereogram mentioned in the utility model.
Figure 12 is the second clamping device stereogram mentioned in the utility model.
Figure 13 is the first clamping device stereogram mentioned in the utility model.
Figure 14 is the fixture stereogram mentioned in the utility model.
Reference numeral: 1. blast pipe positioner, 11. whirligigs, 111. the 4th supports, 112. rotating disk, 113. holder, 114. motor, 115. deceleration device, 12. first supports, 15. first angles, 16. second angles, 161. gap slot, 162. little foot supports, 17. first clamping devices, 171. holddown groove, 172. the 3rd cylinders, 173. clamp, 174. groove, 175. limit pin, 18. second clamping devices, 181. second supports, 182. first cylinders, 183. clamping plate, 184. fixed head, 185. arcuation breach, 19. fixtures, 191. the 3rd supports, 192. second cylinders, 193. fixed block, 2.X axle welder, 21.X bracing strut, 22. motors, 23. screw mandrels, 24. bearing blocks, 25.X axle movable stand, 2511. slider body, 2512. upper tooth, 2513. lower tooth, 26. welding guns, 27. chucks, 271. fixture block, 272. contiguous block, 273. screw, 3.Z shaft moving device, 4.Y shaft moving device, 41.Y bracing strut, 42.Y axle mobile platform, 43. nuts, 5. base.
Detailed description of the invention
A kind of multiple-freedom linking welder, this multiple-freedom linking welder comprises base 5, blast pipe positioner 1 and automatic soldering device, and described base 5 connects described blast pipe positioner 1 and described automatic soldering device.
Described blast pipe positioner 1 comprises the first support 12, connect the first angle 15 and the second angle 16 of described first support 12, described blast pipe positioner 1 also comprises the first clamping device 17 connecting described first support 12, described first clamping device 17 comprises the holddown groove 171 laying blast pipe, be arranged on the 3rd cylinder 172 be fixed on described first support 12 of described holddown groove 171 both sides, connect the clamp 173 of described 3rd cylinder 172, described first support 12 is also provided with the groove 174 coordinating described clamp 173, described blast pipe positioner 1 also comprises the second clamping device 18 connecting described first support 12, described second clamping device 18 comprises the second support 181 connecting described first support 12, be fixed on the first cylinder 182 on described second support 181, connect the clamping plate 183 of described first cylinder 182 piston, described blast pipe positioner 1 also comprises the fixture 19 be arranged between described first angle 15 and described second angle 16, described fixture 19 comprises the 3rd support 191 connecting described first support 12, be fixed on the second cylinder 192 on described 3rd support 191, connect the fixed block 193 of described second cylinder 192.
Described blast pipe positioner 1 also comprises whirligig 11, described whirligig 11 comprises the 4th support 111, connects the rotating disk 112 of described first support 12 and described 4th support 111, the motor 114 be fixed on described 4th support 111, described rotating disk 112 one end is fixedly connected with described 4th support 111, and described motor 114 connects and drives described rotating disk 112.Being provided with of this whirligig 11 helps this application of installation in automation equipment, namely facilitates automation equipment carries out Multi-angle omnibearing welding to the blast pipe be fixed wtih.
Clamping plate 183 are also provided with auxiliary guide rail, and described second support 181 is also provided with the through hole coordinating described auxiliary guide rail.This auxiliary guide rail contributes to the position, termination that described clamping plate 183 steadily and firmly secure the above blast pipe.Described clamping plate 183 need not be rotated because only having the connection of cylinder piston, adding the selection of clamping plate 183 shape, contributing to the termination better fixing blast pipe.
Described whirligig 11 also comprises holder 113, described holder 113 is fixed on described 4th support 111, described motor 114 connects described 4th support 111 by this holder 113, and described holder 113 is provided with the through hole being beneficial to described motor 114 arbor and passing through.Described motor 114 is connected to the length described 4th support 111 extending the axle between described motor 114 and described rotating disk 112 by described holder 113, avoid causing described rotating disk 112 to produce small deflection with described motor 114 owing to using for a long time, cause unnecessary error.
All devices that will drive whole first support 12 due to described motor 114 and connect described first support 12 rotate, so described motor 114 when being necessary, or can connect between described rotating disk 112 and set up deceleration device 115 at described holder 113, or direct integrated deceleration device 115 in described motor 114.The accuracy that motor 114 after this deceleration device 115 not only can ensure the anglec of rotation is further installed, and the possibility because motor 114 in other reasons situation burns can be avoided.
The another kind of described blast pipe positioner 1 describes and is: described blast pipe positioner 1 comprises whirligig 11, first support 12, connects the second support 181 of described first support 12 and the 3rd support 191, the first angle 15 and the second angle 16, first clamping device 17, second clamping device 18 and the fixture 19 being connected described first support 12.
Described whirligig 11 comprises the 4th support 111, connects the rotating disk 112 of described 4th support 111, connects the holder 113 of described 4th support 111, connects the motor 114 of described holder 113.Described rotating disk 112 is two parallel cards, the axle connection that middle employing is short and thick, this axle one of them card hinged.Or the card that described rotating disk 112 is fixedly connected with one end of described axle can be cancelled, and is directly fixedly attached on corresponding device.Be connected with hinged described 4th support 111 of its axle of described rotating disk 112 of described motor 114, be directly connected by bearing at described axle with described 4th support 111, described motor 114 directly connects and drives the rotation of described axle.Described whirligig 11 also comprises deceleration device 115, is connected between described holder 113 and described motor 114 by described deceleration device 115.Described motor 114 drives described axle by this deceleration device 115.
Described first support 12 is the main bodys for locating described blast pipe, described first support 12 connects described rotating disk 112, and ensure that described blast pipe is under described whirligig 11 drives, described blast pipe and described axle are on same axis in rotation process as far as possible.Described first support 12 connects described second support 181 and described 3rd support 191.
Described first angle 15 is connected described first support 12 with described second angle 16.Because blast pipe is thin ends and thick middle, so described first angle 15 and described second angle 16 are all designed to the middle gap slot 161 adopting arc-shaped, arrange corresponding little foot support 162 in the position at corresponding blast pipe two ends, the end face of described little foot support 162 coordinates the trumpet-shaped caliber of described blast pipe.
Described fixture 19 is arranged between described first angle 15 and described second angle 16 support.Described fixture 19 comprise connect described first support 12 the 3rd support 191, be fixedly connected be the 3rd support 191 described second cylinder 192, connect the fixed block 193 of described second cylinder 192.Described fixed block 193 is fixed from the another side of described first angle 15 and described second angle 16 described blast pipe, is namely fixed described blast pipe part by the cooperation of described fixture 19 and described first angle 15 and described second angle 16.This part can be rotated under the drive of whirligig 11, and position location can not be changed due to the difference of the anglec of rotation.Described fixed block 193 is also provided with the breach of corresponding described blast pipe radian.Avoid fixedly causing unbalance stress due to described fixture 19, and then damage is produced to blast pipe.
Described first clamping device 17 comprises the holddown groove 171 laying blast pipe, the clamp 173 being fixed on the 3rd cylinder 172 on described first support 12, connecting described 3rd cylinder 172 being arranged on described holddown groove 171 both sides, and described first support 12 is also provided with the groove 174 coordinating described clamp 173.In blast pipe welding process, have some elongated and irregular pipes accordingly, in order to the location to these pipes, this blast pipe positioner 1 is provided with the first clamping device 17.The cooperation of the groove 174 that described first clamping device 17 is provided with by the first support 12 and the 3rd cylinder 172 adds corresponding pipe and fastens.Described first clamping device 17 can also carry out Primary Location to the extra heavy pipe be socketed on described blast pipe simultaneously.Because this tubing is socketed on described blast pipe in follow-up location, can not be fixed it, but in order to it, skew on position not occur, need to limit its position axially.The two ends of described holddown groove 171 are respectively equipped with should the restriction pin 175 of extra heavy pipe.
Described second clamping device 18 comprises the second support 181 connecting described first support 12, the first cylinder 182 be fixed on described second support 181, connects the clamping plate 183 of described first cylinder 182 piston.Described second support 181 is provided with fixed head 184, and described clamping plate 183 are fixed described in described blast pipe end by the extruding between described fixed head 184 and are provided with the breach agreeing with described blast pipe end between second support 181 and described clamping plate 183.Described clamping plate 183 offer the arcuation breach 185 avoiding described blast pipe.
Described automatic soldering device comprises X-axis welder 2, Y-axis mobile device 4, Z axis mobile device 3, described Y-axis mobile device 4 drives described Z axis mobile device 3 and described X-axis welder 2 in Y direction motion, and described Z axis mobile device 3 drives described X-axis welder 2 to move in described Z-direction.
Described Y-axis mobile device 4 is identical with described Z axis mobile device 3 structure, direction is different, these two kinds of mobile devices include motor 22, screw mandrel 23, nut 43, mobile platform, described motor 22 connects and drives described screw mandrel 23, described screw mandrel 23 coordinates and drives described nut 43, and described nut 43 connects described mobile platform.
Described Y-axis mobile device 4 comprises Y-axis support 41, connects the motor 22 of described Y-axis support 41, connects described motor 22 and described screw mandrel 23, two parallel slideways, Y-axis mobile platforms 42 of being driven by described motor 22, described Y-axis mobile device 4 also comprises nut 43, described nut 43 coordinates described screw mandrel 23, and described nut 43 connects described Y-axis mobile platform 42.
Described Z axis mobile device 3 comprises Z axis support, connects the motor 22 of described Z axis support, connects described motor 22 and described screw mandrel 23, two parallel slideways, Z axis mobile platforms of being driven by described motor 22, described Z axis mobile device 3 also comprises nut 43, described nut 43 coordinates described screw mandrel 23, and described nut 43 connects described Z axis mobile platform.
Described screw mandrel 23 in the utility model is ball-screw, and described ball-screw is that gyration is converted into rectilinear motion, or is the desirable product of gyration by transform linear motion.
Ball-screw is the actuated element that machine tool and precision optical machinery the most often use, and its major function converts rotary motion to linear movement, or torque axis is changed into axial repeated action power, has high accuracy, invertibity and high efficiency feature concurrently simultaneously.Owing to having very little frictional resistance, ball-screw is widely used in various industrial equipment and precision instrument.
Described X-axis welder 2, comprises X-axis support 21.For reducing the weight of X-axis support 21, the framework forming described X-axis support 21 offers gap slot more.Described X-axis support 21 is also provided with two parallel slideways.
Described X-axis welder 2 also comprises the motor 22, screw mandrel 23, bearing block 24, X-axis movable stand 25, welding gun 26, the chuck 27 that are fixed on described X-axis support 21.Described motor 22 is by described chuck 27 connection wire rod 23, and described screw mandrel 23 is fixed on described X-axis support 21 by described bearing, the parallel described slideway of described screw mandrel 23.Described X-axis movable stand 25 is also fixedly connected with the slide block that two pieces coordinate two described slideways respectively.Described X-axis movable stand 25 is also provided with threaded block, and described screw mandrel 23 connects described X-axis movable stand 25 by described threaded block.Described motor 22 drives described X-axis movable stand 25 by described screw mandrel 23.
Described slide block comprises slider body 2511, described slider body 2511 comprises the notch engaging described slideway completely, described notch comprises upper surface, side and lower surface, described upper tooth 2512 and described lower tooth 2513 are separately positioned on described upper surface and described lower surface, it is the face of cylinder that described upper tooth 2512 contacts described upper surface and described lower surface place with described lower tooth 2513, and the described face of cylinder is convex in described notch.Described upper surface is connected described side with described lower surface by the face of cylinder, and the described face of cylinder is convex in described notch.
Described chuck 27 comprises three parts, is contiguous block 272, fixture block 271, screw 273 respectively.Described contiguous block 272, as gear-like, offers six teeth, has the teeth groove that corresponding between every two teeth.Each described chuck 27 includes a contiguous block 272, two fixture blocks 271 and four pairs of screws 273, and described screw 273 can coordinate nut to use, and also can directly coordinate described fixture block 271 to use.Described fixture block 271 is cylindric, and one end offers the otch facilitating described chuck 27 to connect, and the other end is provided with three teeth coordinating described contiguous block 272, three teeth groove of these three corresponding described contiguous blocks 272 of teeth difference, and non-conterminous between teeth groove.Reinforced by described screw 273 at vertical described cut-out direction.
The general implementation process of described chuck 27 is all be fixed to by fixture block 271 to want on interconnective axle, then by being that contiguous block 272 carries out transmission.Described fixture block 271 only needs to carry out grafting with described contiguous block 272.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. a multiple-freedom linking welder, it is characterized in that: this multiple-freedom linking welder comprises base, blast pipe positioner and automatic soldering device, described base connects described blast pipe positioner and described automatic soldering device, described automatic soldering device comprises X-axis welder, Y-axis mobile device, Z axis mobile device, described Y-axis mobile device drives described Z axis mobile device and described X-axis welder to move in Y direction, described Z axis mobile device drives described X-axis welder to move in described Z-direction, described X-axis welder comprises support, connect the motor of described support, screw mandrel, described support also comprises bearing block, described screw mandrel two ends are connected on described support by bearing block, described motor connects and drives described screw mandrel, described support is also provided with two parallel slideways, described X-axis welder also comprises welding gun, the X-axis movable stand of fixing described welding gun, described X-axis movable stand is also fixedly connected with the slide block that two pieces coordinate two described slideways respectively, described X-axis movable stand also comprises the threaded block be fixed on described X-axis movable stand, described threaded block is provided with the screw thread engaging described screw mandrel, described blast pipe positioner comprises the first support, connect the first angle and second angle of described first support, described blast pipe positioner also comprises the first clamping device connecting described first support, described first clamping device comprises the holddown groove laying blast pipe, be arranged on the 3rd cylinder be fixed on described first support of described holddown groove both sides, connect the clamp of described 3rd cylinder, described first support is also provided with the groove coordinating described clamp, described blast pipe positioner also comprises the second clamping device connecting described first support, described second clamping device comprises the second support connecting described first support, be fixed on the first cylinder on described second support, connect the chuck of described first cylinder piston, described blast pipe positioner also comprises the fixture be arranged between described first angle and described second angle, described fixture comprises the 3rd support connecting described first support, be fixed on the second cylinder on described 3rd support, connect the fixed block of described second cylinder.
2. multiple-freedom linking welder according to claim 1, it is characterized in that: described blast pipe positioner also comprises whirligig, described whirligig comprises the 4th support, connects the rotating disk of described first support and described 4th support, the motor be fixed on described 4th support, described rotating disk one end is fixedly connected with described 4th support, and described motor connects and drives described rotating disk.
3. multiple-freedom linking welder according to claim 1, is characterized in that: chuck is also provided with auxiliary guide rail, and described second support is also provided with the through hole coordinating described auxiliary guide rail.
4. multiple-freedom linking welder according to claim 2, it is characterized in that: described whirligig also comprises holder, described holder is fixed on described 4th support, described motor connects described 4th support by this holder, and described holder is provided with the through hole being beneficial to described motor crankshaft and passing through.
5. multiple-freedom linking welder according to claim 1, is characterized in that: described X-axis welder also comprises a set of and described motor, described screw mandrel, described bearing block, described welding gun and the motor, screw mandrel, bearing block, welding gun and the X-axis movable stand that are side by side connected to described support on identical with described X-axis movable stand.
6. multiple-freedom linking welder according to claim 1 or 5, it is characterized in that: described slide block comprises slider body, described slider body is provided with the breach engaging described slideway, and the top of described breach and the bottom of described breach are respectively equipped with tooth and lower tooth.
7. multiple-freedom linking welder according to claim 6, it is characterized in that: described X-axis welder also comprises chuck, described chuck comprises contiguous block and chuck block, described chuck block is provided with cylindrical groove, described chuck block offers otch in one end of described cylindrical groove, vertical described cut sides is provided with the through hole of holding screw and the described holding screw of cooperation, the other end of described chuck block is provided with the projection of agreeing with described contiguous block, and the breach that described contiguous block is provided with connects two described chuck blocks.
8. multiple-freedom linking welder according to claim 6, it is characterized in that: described Y-axis mobile device is identical with described Z axis mobile device structure, direction is different, these two kinds of mobile devices include motor, screw mandrel, nut, mobile platform, described motor connects and drives described screw mandrel, described screw mandrel coordinates and drives described nut, and described nut connects described mobile platform.
9. multiple-freedom linking welder according to claim 6, it is characterized in that: described Y-axis mobile device comprises Y-axis support, connect the motor of described Y-axis support, connect described motor and by the described screw mandrel of described driven by motor, two parallel slideway, Y-axis mobile platforms, described Y-axis mobile device also comprises nut, screw mandrel described in described nut screw connection, described nut connects described mobile platform.
10. multiple-freedom linking welder according to claim 6, it is characterized in that: described Z axis mobile device comprises Z axis support, connect the motor of described Z axis support, connect described motor and by the described screw mandrel of described driven by motor, two parallel slideway, Z axis mobile platforms, described Z axis mobile device also comprises nut, screw mandrel described in described nut screw connection, described nut connects described mobile platform.
CN201520522236.1U 2015-07-17 2015-07-17 Multi freedom welding set that links Active CN204867880U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985368A (en) * 2015-07-17 2015-10-21 柳州海特迪桢瑟汽车部件有限公司 Multi-degree-of-freedom linked welding device
CN113894454A (en) * 2021-09-28 2022-01-07 宁波宏钜智能设备有限公司 Three-axis automatic welding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985368A (en) * 2015-07-17 2015-10-21 柳州海特迪桢瑟汽车部件有限公司 Multi-degree-of-freedom linked welding device
CN113894454A (en) * 2021-09-28 2022-01-07 宁波宏钜智能设备有限公司 Three-axis automatic welding device

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