CN115302178B - Automatic welding and clamping system - Google Patents

Automatic welding and clamping system Download PDF

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Publication number
CN115302178B
CN115302178B CN202211244577.8A CN202211244577A CN115302178B CN 115302178 B CN115302178 B CN 115302178B CN 202211244577 A CN202211244577 A CN 202211244577A CN 115302178 B CN115302178 B CN 115302178B
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China
Prior art keywords
driving device
telescopic driving
rotating shaft
clamping
connecting seat
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CN115302178A (en
Inventor
姚文俊
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Guangzhou Lixin Automation Equipment Co ltd
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Guangzhou Lixin Automation Equipment Co ltd
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Priority to CN202211244577.8A priority Critical patent/CN115302178B/en
Publication of CN115302178A publication Critical patent/CN115302178A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/006—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention discloses an automatic welding and clamping system, and relates to the technical field of automatic welding. The clamping device comprises a clamping platform and a first clamping component; the clamping platform is used for fixing the main body to be welded; the first clamping subassembly includes: the fixing part of the first telescopic driving device is connected to the clamping platform; the first connecting seat is connected to the movable part of the first telescopic driving device; the fixed part of the second telescopic driving device is hinged on the first connecting seat around the first rotating shaft; the first clamping mechanism is used for fixing the first welding part and is hinged to the first connecting seat around the second rotating shaft, and the first clamping mechanism is hinged to the movable part of the second telescopic driving device around the third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other and arranged in a triangle. The positioning method and the positioning device of the invention complete the positioning between the first welding part and the main body to be welded based on an automatic mode, do not need to arrange corresponding matching structures on the main body to be welded and the first welding part, and reduce the design difficulty of parts to be welded.

Description

Automatic welding and clamping system
Technical Field
The invention belongs to the technical field of automatic welding, and particularly relates to an automatic welding and clamping system.
Background
The automatic welding is a set of processing procedures of clamping and fixing a workpiece on a jig, and driving a welding gun to perform welding operation on the surface of the workpiece through equipment such as a robot, an automatic welding machine and the like. The automatic welding can replace a manual welding mode, has the advantages of high welding precision, high machining efficiency, low labor cost and the like, and is widely applied at present.
However, in the current automated welding process, it is necessary to provide corresponding matching structures on the main body member and each weldment to position each weldment on the main body member, so as to perform the subsequent welding operation. The operation of the arrangement matching structure is limited by the main body member and the structures of all weldments, so that the design difficulty of the main body member and all weldments is increased.
Disclosure of Invention
The invention aims to provide an automatic welding and clamping system, and aims to solve the technical problem that the design difficulty of a main body component and each weldment is increased due to a matching structure for positioning in the current automatic welding.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an automatic welding clamping system comprises a clamping platform and a first clamping assembly; the clamping platform is used for fixing the main body to be welded; the first clamping assembly comprises:
the fixing part of the first telescopic driving device is connected to the clamping platform;
the first connecting seat is connected to the movable part of the first telescopic driving device;
the fixing part of the second telescopic driving device is hinged to the first connecting seat around a first rotating shaft;
the first clamping mechanism is used for fixing a first welding part, hinged to the first connecting seat around a second rotating shaft, and hinged to a movable part of the second telescopic driving device around a third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other and arranged in a triangular shape;
the second telescopic driving device is used for driving the first welding part fixed on the first clamping mechanism to rotate relative to the main body to be welded fixed on the clamping platform; the first telescopic driving device is used for driving the first welding piece fixed on the first clamping mechanism to abut against the to-be-welded main body fixed on the clamping platform.
Furthermore, the first clamping mechanism comprises a second connecting seat, a first positioning plate, a first pressing strip, a third telescopic driving device and a fourth telescopic driving device; wherein:
the second connecting seat is hinged to the first connecting seat around the second rotating shaft, and the second connecting seat is hinged to the movable part of the second telescopic driving device around the third rotating shaft;
the fixing part of the third telescopic driving device is connected to the second connecting seat; the first positioning plate is connected to the movable part of the third telescopic driving device and provided with a first positioning pin, the first positioning plate is used for placing the first welding part, and the first positioning pin is used for pin hole matching with a first positioning through hole in the first welding part;
the fixing part of the fourth telescopic driving device is hinged to the second connecting seat around a fourth rotating shaft; the first pressing strip is hinged to the second connecting seat around a fifth rotating shaft, one end of the first pressing strip is hinged to a movable part of the fourth telescopic driving device around a sixth rotating shaft, and the other end of the first pressing strip is used for being abutted against the first welding piece placed on the first positioning plate so as to press the first welding piece on the first positioning plate; the fourth rotating shaft, the fifth rotating shaft and the sixth rotating shaft are parallel to each other and arranged in a triangle.
Furthermore, a first correction block is arranged on the first connecting seat, and a second correction block is arranged on the second connecting seat; the first correcting block is provided with a first inclined part and a second inclined part, the first inclined part is arranged in an inclined manner towards the first axial direction of the second rotating shaft along the direction far away from the first connecting seat, and the second inclined part is arranged in an inclined manner towards the second axial direction of the second rotating shaft along the direction far away from the first connecting seat; the second correcting block is provided with a third inclined part and a fourth inclined part, the third inclined part is obliquely arranged towards the first axial direction along the direction far away from the second connecting seat, and the fourth inclined part is obliquely arranged towards the second axial direction along the direction far away from the second connecting seat; wherein the first axial direction is opposite the second axial direction; the first inclined part is used for being attached to the fourth inclined part, and the second inclined part is used for being attached to the third inclined part.
Furthermore, a third correction block is arranged on the second connecting seat, and a fourth correction block is arranged on the first pressing bar; the third correcting block is provided with a fifth inclined part and a sixth inclined part, the fifth inclined part is obliquely arranged towards the third axial direction of the fifth rotating shaft along the direction far away from the second connecting seat, and the sixth inclined part is obliquely arranged towards the fourth axial direction of the fifth rotating shaft along the direction far away from the second connecting seat; the fourth correcting block is provided with a seventh inclined part and an eighth inclined part, the seventh inclined part is arranged in an inclined way towards the third axial direction along the direction far away from the first pressing strip, and the eighth inclined part is arranged in an inclined way towards the fourth axial direction along the direction far away from the first pressing strip; wherein the third axial direction is opposite the fourth axial direction; the fifth inclined portion is used for being attached to the eighth inclined portion, and the sixth inclined portion is used for being attached to the seventh inclined portion.
Furthermore, the automatic welding and clamping system further comprises a limiting strip, a first buffer and a second buffer; wherein:
one end of the limiting strip is connected to the movable part of the second telescopic driving device, and the other end of the limiting strip extends along the contraction direction of the movable part of the second telescopic driving device and forms a bending part;
the fixing part of the first buffer is connected to the fixing part of the second telescopic driving device; in the process of extending the movable part of the second telescopic driving device, the movable part of the first buffer is used for being abutted against the bending part so as to prevent the movable part of the second telescopic driving device from extending;
the fixing part of the second buffer is connected to the fixing part of the second telescopic driving device; and in the process of contracting the movable part of the second telescopic driving device, the movable part of the second buffer is used for being abutted against the first clamping mechanism so as to prevent the movable part of the second telescopic driving device from contracting.
Furthermore, the automatic welding and clamping system also comprises a guide strip; wherein:
one end of the guide strip is connected to the clamping platform; the first connecting seat is connected to the movable part of the first telescopic driving device in a sliding manner along a first path, and the first path is perpendicular to the telescopic direction of the first telescopic driving device; the first connecting seat is provided with a sliding piece, and the sliding piece is in sliding fit with the guide strip along a second path; the second path includes a first movement component parallel to a telescopic direction of the first telescopic driving device and a second movement component parallel to the first path.
Furthermore, the automatic welding clamping system also comprises a second clamping assembly, wherein the second clamping assembly comprises a third connecting seat, a second pressing bar, a fifth telescopic driving device, a sixth telescopic driving device and a seventh telescopic driving device; wherein:
the fixing part of the fifth telescopic driving device is connected to the clamping platform; the fixed part of the sixth telescopic driving device is connected to the movable part of the fifth telescopic driving device; the third connecting seat is connected to the movable part of the sixth telescopic driving device and is provided with a first clamping part, and the first clamping part is used for placing a second welding part; the fixing part of the seventh telescopic driving device is hinged to the third connecting seat around a seventh rotating shaft; the second pressing strip is hinged to the third connecting seat around an eighth rotating shaft, one end of the second pressing strip is hinged to a movable part of the seventh telescopic driving device around a ninth rotating shaft, and the other end of the second pressing strip is used for being abutted against the second welding piece placed on the first clamping part so as to press the second welding piece on the first clamping part; the seventh rotating shaft, the eighth rotating shaft and the ninth rotating shaft are parallel to each other and arranged in a triangle;
the sixth telescopic driving device is used for driving the second welding piece pressed on the first clamping part to be close to the to-be-welded main body on the clamping platform along the vertical direction; and the fifth telescopic driving device is used for driving the second welding part which is pressed on the first clamping part to be close to the main body to be welded on the clamping platform along the horizontal direction.
Furthermore, the automatic welding and clamping system further comprises a protection assembly, wherein the protection assembly comprises a fourth connecting seat, a first connecting rod, a protection cover, an eighth telescopic driving device and a ninth telescopic driving device; wherein:
the fixing part of the eighth telescopic driving device is connected to the clamping platform; the fourth connecting seat is connected to the movable part of the eighth telescopic driving device; the fixing part of the ninth telescopic driving device is hinged to the fourth connecting seat around a tenth rotating shaft; the first connecting rod is hinged to the fourth connecting seat around an eleventh rotating shaft, and one end of the first connecting rod is hinged to the movable part of the ninth telescopic driving device around a twelfth rotating shaft; the protective cover is connected to the other end of the first connecting rod; the tenth rotating shaft, the eleventh rotating shaft and the twelfth rotating shaft are parallel to each other and arranged in a triangle;
the eighth telescopic driving device is used for driving the protective cover to be close to the main body to be welded on the clamping platform along the vertical direction; and the ninth telescopic driving device is used for driving the protective cover to cover the finish machining part on the main body to be welded.
Further, the protective cover comprises a cover body and a protective plate, and the protective assembly further comprises a second positioning plate and a tenth telescopic driving device; wherein:
the fixed part of the tenth telescopic driving device is connected to the fourth connecting seat, the second positioning plate is connected to the movable part of the tenth telescopic driving device, the second positioning plate is provided with a second positioning pin, the second positioning plate is used for placing a third welding part, and the second positioning pin is used for pin-hole matching with a second positioning through hole in the third welding part; the guard plate is connected to the second positioning plate; the cover body is connected to the other end of the first connecting rod and is provided with a clearance passage; the other end of the first connecting rod is provided with an abutting plane;
the ninth telescopic driving device is used for driving the cover body to cover the finish machining part on the main body to be welded; the tenth telescopic driving device is used for driving the third welding piece placed on the second positioning plate to be pressed on the abutting plane, and the tenth telescopic driving device is used for driving the guard plate to cover the clearance channel at the same time.
Furthermore, the clamping platform comprises a fixed support and a third clamping assembly, and the third clamping assembly comprises a fifth connecting seat, a third pressing bar and an eleventh telescopic driving device; the fixing part of the first telescopic driving device is connected to the fixing support; the fifth connecting seat is connected to the fixed support and provided with a positioning part used for erecting the main body to be welded; the fixing part of the eleventh telescopic driving device is hinged to the fifth connecting seat around a thirteenth rotating shaft; the third pressing strip is hinged to the fifth connecting seat around a fourteenth rotating shaft, and one end of the third pressing strip is hinged to the movable part of the eleventh telescopic driving device around a fifteenth rotating shaft; the thirteenth rotating shaft, the fourteenth rotating shaft and the fifteenth rotating shaft are parallel to each other and arranged in a triangle; the eleventh telescopic driving device is used for driving the other end of the third pressing bar to be abutted against the main body to be welded so as to press the main body to be welded on the positioning part.
Furthermore, the automatic welding and clamping system further comprises two driving turntables which are arranged at intervals along the axial direction, a line passing through hole is formed in the circle center of each driving turntable, and the clamping platform is connected to the two driving turntables.
Further, the fixed support is arranged in a rectangular shape; the number of the first clamping components is two, and the number of the third clamping components is four; the two first clamping assemblies are respectively arranged on two opposite side edges of the fixed support, and the four third clamping assemblies are respectively arranged at four corners of the fixed support.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an automatic welding and clamping system, wherein a first clamping component is arranged on a clamping platform, a main body to be welded is fixed on the clamping platform, a first welding part is fixed on a first clamping mechanism of the first clamping component, in a welding process, linear drive of a second telescopic driving device is converted into rotary drive through cooperation of a first rotating shaft, a second rotating shaft, a third rotating shaft and a rotating part on the first rotating shaft, so that the second telescopic driving device can be controlled to drive the first clamping mechanism to rotate to an angle position where the first welding part is matched with the main body to be welded, and then the first telescopic driving device is controlled to drive a first connecting seat to move towards a direction close to the main body to be welded so as to enable the first welding part to abut against a welding part of the main body to be welded, and therefore, the welding operation between the first welding part and the main body to be welded can be completed through the welding component. The relative angular adjustment between the first welding piece and the main body to be welded is completed based on the automatic mode in the process, the first welding piece is positioned on the main body to be welded, and a corresponding matching structure is not required to be arranged on the main body to be welded and the first welding piece, so that the design difficulty of the part to be welded is reduced, the influence of the matching structure on the structure and the mechanical property of the part to be welded is avoided, and the automation degree of equipment is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a first view partial structure of an automatic welding and clamping system according to an embodiment of the present invention;
FIG. 2 is a second perspective partial structure diagram of an exemplary automated welding clamping system of the present invention;
FIG. 3 is a schematic diagram of an overall structure of an embodiment of the automatic welding clamping system of the present invention;
FIG. 4 is a first perspective structural view of the first clamping assembly according to an embodiment of the present disclosure;
FIG. 5 is a second perspective view of the first clamping assembly according to an embodiment of the present disclosure;
FIG. 6 is a third perspective structural view of the first clamping assembly according to an embodiment of the present disclosure;
FIG. 7 is an enlarged schematic view at A of FIG. 6;
FIG. 8 is an enlarged schematic view at B of FIG. 6;
figure 9 is a schematic view of a first clamp assembly according to another embodiment of the present invention;
figure 10 is a schematic view of a second clamping assembly in accordance with an embodiment of the present invention;
FIG. 11 is a first perspective structural view of a shield assembly according to an embodiment of the present invention;
FIG. 12 is a second perspective view of the shield assembly according to an embodiment of the present invention;
figure 13 is a schematic view of a third chuck assembly according to an embodiment of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name(s)
1 Fixing support 51 Fifth connecting seat
2 First clamping assembly 52 Third press strip
3 Second clamping assembly 53 Eleventh telescopic driving device
4 Protective assembly 71 Wire through hole
5 Third clamping assembly 221 Sliding member
6 Welded assembly 222 Guide rod
7 Driving turntable 223 Elastic limiting part
21 First telescopic driving device 224 First correction block
22 First connecting seat 241 Guide strip
23 Second telescopic driving device 251 Second connecting seat
24 Adapter plate 252 First positioning plate
25 First clamping mechanism 253 First press bar
26 Spacing strip 254 Third telescopic driving device
27 First buffer 255 Fourth telescopic driving device
28 Second buffer 431 Cover body
29 Connecting plate 432 Guard board
31 Third connecting seat 2241 First inclined part
32 Second depression bar 2242 A second inclined part
33 Fifth telescopic driving device 2511 Second correction block
34 Sixth telescopic driving device 2512 Third correction block
35 Seventh telescopic driving device 2521 First positioning pin
41 The fourth connecting seat 2531 Fourth correction block
42 First connecting rod 25111 Third inclined part
43 Protective cover 25112 The fourth inclined part
44 Eighth telescopic driving device 25121 The fifth inclined part
45 Ninth telescopic driving device 25122 The sixth inclined part
46 Second positioning plate 25311 The seventh inclined part
47 Tenth telescopic driving device 25312 Eighth incline part
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if the present invention relates to directional indications (such as up, down, left, right, front, back, 8230; \8230;), the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides an automatic welding and clamping system, which includes a clamping platform (not shown in the figures) and a first clamping assembly 2; the clamping platform is used for fixing the main body to be welded; the first clamping assembly 2 comprises:
the fixing part of the first telescopic driving device 21 is connected to the clamping platform;
a first connecting seat 22, wherein the first connecting seat 22 is connected to the movable part of the first telescopic driving device 21;
a second telescopic driving device 23, a fixed part of the second telescopic driving device 23 is hinged on the first connecting seat 22 around the first rotating shaft;
the first clamping mechanism 25 is used for fixing the first welding part, the first clamping mechanism 25 is hinged to the first connecting seat 22 around a second rotating shaft, and the first clamping mechanism 25 is hinged to the movable part of the second telescopic driving device 23 around a third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other and arranged in a triangle shape;
the second telescopic driving device 23 is used for driving the first welding part fixed on the first clamping mechanism 25 to rotate relative to the main part to be welded fixed on the clamping platform; the first telescopic driving device 21 is used for driving the first welding part fixed on the first clamping mechanism 25 to abut against the main body to be welded fixed on the clamping platform.
In this embodiment, the main body to be welded may specifically be a preset type of sheet metal structural member used in an automobile, and the first welding member (the subsequent second welding member, the third welding member, and the like) is any member that needs to be welded to the main body to be welded. The clamping platform can be an assembly structure which is composed of a support, a plurality of positioning structures and a plurality of clamping mechanisms and used for bearing and fixing the main body to be welded.
The first telescopic driving device 21 and the second telescopic driving device 23 may be specifically a cylinder or a hydraulic cylinder, the fixed part is a cylinder body part thereof, and the movable part is a piston part thereof; the setting can be continued by other telescopic driving devices mentioned later, and the description is omitted. The fixing part of the first telescopic driving device 21 can be fixed on the clamping platform through an adapter plate 24, so that the relative angle between the first telescopic driving device 21 and the clamping platform can be conveniently set; the first connecting seat 22 can be slidably connected to the adapter plate 24 through a guide rail slider assembly, so that the stability of the linear movement of the first connecting seat 22 can be improved.
The first clamping mechanism 25 can clamp and fix the first welding part by driving components such as a clamping jaw, a caliper and a pressing plate through a cylinder, a hydraulic cylinder and the like. In a specific implementation, as shown in fig. 4 and 5, in the initial state, the first telescopic driving device 21 is in an extended state, and the second telescopic driving device 23 is in a contracted state; after the first welding part is fixed to the first clamping mechanism 25, the movable part of the second telescopic driving device 23 can be controlled to extend to drive the first clamping mechanism 25 to rotate clockwise relative to the first connecting seat 22, and meanwhile, the fixed part of the second telescopic driving device 23 also rotates relative to the first connecting seat 22 in cooperation with the rotation of the first clamping mechanism 25, so as to ensure that the first clamping mechanism 25 can continuously rotate around the first connecting seat 22 until the first welding part rotates to a preset angle along with the first clamping mechanism 25 (the preset angle can be a joint angle which is matched with the welding part of the first welding part and the main body to be welded, and can also be an angle which is not provided with barriers between the first welding part and the welding part of the main body to be welded, so that the barrier avoiding effect can be achieved); then, the first telescopic driving device 21 is controlled to contract so as to pull the first welding part with a proper angle to the direction close to the main body to be welded until the first welding part abuts against the welding part of the main body to be welded, and at the moment, the welding assembly 6 (which can be a multi-axis robot provided with a welding gun) can be controlled to weld the first welding part on the main body to be welded; after the welding operation is finished, the first clamping mechanism 25 releases the first welding part, and the movable part of the second telescopic driving device 23 contracts so as to drive the first clamping mechanism 25 to rotate to an initial angle state in the counterclockwise direction of the figure; finally, the movable part of the first telescopic driving device 21 extends to reset the first clamping mechanism 25 to the initial position in the direction away from the to-be-welded main body, so that the first clamping assembly 2 can not block the to-be-welded main body any more, and the to-be-welded main body after being welded can be conveniently detached from the clamping platform and transferred.
It can be understood that the first telescopic driving device 21, the second telescopic driving device 23 and the first clamping mechanism 25 can be in communication connection with a control module (specifically, an MCU microcontroller) to call a control program stored in the control module to trigger the corresponding device, so that the corresponding device can be controlled to automatically execute the corresponding telescopic and clamping actions according to the preset time node, thereby improving the automation and intelligence of the device.
Therefore, in the automatic welding and clamping system provided by this embodiment, the first clamping component 2 is disposed on the clamping platform, the main body to be welded is fixed on the clamping platform, and the first welding member is fixed on the first clamping mechanism 25 of the first clamping component 2, in the welding process, the linear drive of the second telescopic driving device 23 can be converted into the rotary drive through the cooperation between the first rotating shaft, the second rotating shaft, the third rotating shaft and the rotating member thereon, so that the second telescopic driving device 23 can be controlled to drive the first clamping mechanism 25 to rotate to the angular position where the first welding member is matched with the main body to be welded, and then the first telescopic driving device 21 is controlled to drive the first connecting seat 22 to move in the direction close to the main body to be welded, so as to abut the first welding member on the welding portion of the main body to be welded, thereby the welding assembly 6 can complete the welding operation between the first welding member and the main body to be welded. The relative angular adjustment between the first welding piece and the main body to be welded is completed based on the automatic mode in the process, the first welding piece is positioned on the main body to be welded, and a corresponding matching structure is not required to be arranged on the main body to be welded and the first welding piece, so that the design difficulty of the part to be welded is reduced, the influence of the matching structure on the structure and the mechanical property of the part to be welded is avoided, and the automation degree of equipment is improved.
Optionally, referring to fig. 1 to 5, the first clamping mechanism 25 includes a second connecting seat 251, a first positioning plate 252, a first pressing bar 253, a third telescopic driving device 254 and a fourth telescopic driving device 255; wherein:
the second connecting seat 251 is hinged to the first connecting seat 22 around a second rotating shaft, and the second connecting seat 251 is hinged to the movable part of the second telescopic driving device 23 around a third rotating shaft;
the fixing part of the third telescopic driving device 254 is connected to the second connecting seat 251; the first positioning plate 252 is connected to the movable part of the third telescopic driving device 254, the first positioning plate 252 is provided with a first positioning pin 2521, the first positioning plate 252 is used for placing a first welding part, and the first positioning pin 2521 is used for pin hole matching with a first positioning through hole on the first welding part;
the fixing part of the fourth telescopic driving device 255 is hinged to the second connecting seat 251 around the fourth rotating shaft; the first pressing strip 253 is hinged to the second connecting seat 251 around a fifth rotating shaft, one end of the first pressing strip 253 is hinged to a movable part of the fourth telescopic driving device 255 around a sixth rotating shaft, and the other end of the first pressing strip 253 is used for being abutted to a first welding piece placed on the first positioning plate 252 so as to press the first welding piece on the first positioning plate 252; the fourth rotating shaft, the fifth rotating shaft and the sixth rotating shaft are parallel to each other and arranged in a triangle.
In a specific implementation process according to this embodiment, as shown in fig. 4 and 5, in an initial state, the first telescopic driving device 21 is in an extended state, the second telescopic driving device 23 is in a retracted state, the third telescopic driving device 254 is in an extended state, and the fourth telescopic driving device 255 is in a retracted state; after the first welding part is fixed on the first positioning plate 252 (specifically, the first positioning through hole of the first welding part is matched with the first positioning pin 2521), the movable part of the fourth telescopic driving device 255 may be controlled to extend to drive the first pressing bar 253 to rotate counterclockwise relative to the second connecting seat 251, and meanwhile, the fixed part of the fourth telescopic driving device 255 is also matched with the rotation of the first pressing bar 253 to rotate relative to the second connecting seat 251, so as to ensure that the first pressing bar 253 can rotate continuously around the second connecting seat 251 until the first pressing bar 253 abuts against the first welding part and presses and fixes the first welding part on the first positioning plate 252; then the first welding part is driven to abut against the welding part of the main body to be welded through the second telescopic driving device 23 and the first telescopic driving device 21 (see the above embodiment); after the welding operation is finished, the movable part of the fourth telescopic driving device 255 is contracted, and the first pressing strip 253 does not generate a pressing effect on the first welding part any more; the movable part of the third telescopic driving device 254 contracts to drive the first positioning pin 2521 to be pulled out of the first positioning through hole of the first welding part and retracted; then the movable part of the second telescopic driving device 23 contracts to drive the first clamping mechanism 25 to rotate counterclockwise as shown in the figure and reset; and finally, the movable part of the first telescopic driving device 21 extends to enable the first clamping component 2 to be completely reset without forming a barrier on the clamping platform, so that the welded main body to be welded is taken away from the clamping platform.
Through the cooperation of the telescopic actions among the four telescopic driving devices, clamping and pressing and positioning operations of the first welding part before welding operation and separation and reset operations after the welding operation is finished can be automatically realized, so that the processing efficiency and the automation degree of equipment are further improved. The first pressing strip 253 may be in a barb shape as shown in fig. 4 and 5, so that the fourth telescopic driving device 255 may be disposed above the first positioning plate 252, thereby making full use of a height space and saving a space in a horizontal direction, and further reserving more space for the arrangement of other devices.
Optionally, referring to fig. 6 to 8, a first calibration block 224 is disposed on the first connecting seat 22, and a second calibration block 2511 is disposed on the second connecting seat 251; the first correcting block 224 has a first inclined part 2241 and a second inclined part 2242, the first inclined part 2241 is obliquely disposed toward a first axial direction of the second rotation shaft in a direction away from the first connection seat 22, and the second inclined part 2242 is obliquely disposed toward a second axial direction of the second rotation shaft in a direction away from the first connection seat 22; the second correcting block 2511 has a third inclined portion 25111 and a fourth inclined portion 25112, the third inclined portion 25111 is inclined toward the first axial direction in a direction away from the second connecting seat 251, and the fourth inclined portion 25112 is inclined toward the second axial direction in a direction away from the second connecting seat 251; wherein the first axial direction is opposite to the second axial direction; the first inclined portion 2241 is used to attach the fourth inclined portion 25112, and the second inclined portion 2242 is used to attach the third inclined portion 25111.
Optionally, referring to fig. 6 to 8, a third correction block 2512 is disposed on the second connection seat 251, and a fourth correction block 2531 is disposed on the first pressing bar 253; the third correcting block 2512 has a fifth inclined portion 25121 and a sixth inclined portion 25122, the fifth inclined portion 25121 is inclined toward the third axial direction of the fifth rotating shaft in the direction away from the second connecting seat 251, and the sixth inclined portion 25122 is inclined toward the fourth axial direction of the fifth rotating shaft in the direction away from the second connecting seat 251; the fourth correcting block 2531 has a seventh inclined portion 25311 and an eighth inclined portion 25312, the seventh inclined portion 25311 is inclined toward the third axial direction in a direction away from the first bead 253, and the eighth inclined portion 25312 is inclined toward the fourth axial direction in a direction away from the first bead 253; wherein the third axial direction is opposite to the fourth axial direction; the fifth inclined portion 25121 is attached to the eighth inclined portion 25312, and the sixth inclined portion 25122 is attached to the seventh inclined portion 25311.
Illustratively, the first inclined portion 2241 and the second inclined portion 2242 together form a V-shaped convex structure, and the third inclined portion 25111 and the fourth inclined portion 25112 together form a V-shaped concave structure; the fifth inclined portion 25121 and the sixth inclined portion 25122 form a V-shaped protrusion structure, and the seventh inclined portion 25311 and the eighth inclined portion 25312 form a V-shaped recess structure. The first axial direction and the second axial direction are respectively two axial extension directions of the second rotating shaft, and the third axial direction and the fourth axial direction are respectively two axial extension directions of the fifth rotating shaft.
When the movable part of the second telescopic driving device 23 extends to drive the first connecting seat 22 to rotate towards the second connecting seat 251, the inclined part of the V-shaped convex structure is in sliding fit with the inclined part of the V-shaped concave structure, and the center of the second correcting block 2511 can be aligned with the center of the first correcting block 224 by the guiding action of the inclined part; that is, when the second connecting seat 251 and the first connecting seat 22 have a distance deviation in the axial direction of the second rotating shaft, the inclined portion can guide the second correcting block 2511 to axially move relative to the first correcting block 224 to compensate the axial deviation, so as to perform a certain correcting function, and the position accuracy of the second connecting seat 251 driving the first welding member to be positioned on the body to be welded is improved.
Similarly, when the movable portion of the fourth telescopic driving device 255 extends to drive the other end of the first pressing strip 253 to rotate towards the first positioning plate 252, the inclined portion of the V-shaped convex structure is in sliding fit with the inclined portion of the V-shaped concave structure, so that the center of the fourth calibration block 2531 can be aligned with the center of the third calibration block 2512 by the guiding action of the inclined portion; that is, when the first pressing bar 253 and the second connecting seat 251 have a distance deviation in the axial direction of the fifth rotating shaft, the inclined portion may guide the fourth correcting block 2531 to axially move relative to the third correcting block 2512 to compensate for the axial deviation, so as to perform a certain correcting function, and improve the position accuracy of the first pressing bar 253 pressed on the first welding member.
Optionally, referring to fig. 1 to 5, the automatic welding and clamping system further includes a limiting bar 26, a first buffer 27 and a second buffer 28; wherein:
one end of the limiting strip 26 is connected to the movable part of the second telescopic driving device 23, and the other end of the limiting strip 26 extends along the contraction direction of the movable part of the second telescopic driving device 23 to form a bending part;
the fixed part of the first buffer 27 is connected to the fixed part of the second telescopic driving device 23; in the process of extending the movable portion of the second telescopic driving device 23, the movable portion of the first buffer 27 is used for abutting against the bent portion to prevent the movable portion of the second telescopic driving device 23 from extending;
the fixed part of the second buffer 28 is connected to the fixed part of the second telescopic driving device 23; in the process of contracting the movable portion of the second telescopic drive device 23, the movable portion of the second buffer 28 is used to abut against the first chuck 25 to prevent the movable portion of the second telescopic drive device 23 from contracting.
Illustratively, by providing the first buffer 27 and the second buffer 28, the first clamping mechanism 25 can be prevented from rotating too fast to impact or collide with the corresponding device, so as to prolong the service life of the corresponding device and equipment. The first buffer 27 and the second buffer 28 may be a pneumatic buffer or a hydraulic buffer.
Further, referring to fig. 9, in an exemplary embodiment, the automated welding clamping system further includes a guide bar 241; wherein:
one end of the guide strip 241 is connected to the clamping platform; the first connecting base 22 is slidably connected to the movable portion of the first telescopic driving device 21 along a first path, and the first path is perpendicular to the telescopic direction of the first telescopic driving device 21; the first connecting seat 22 is provided with a sliding piece 221, and the sliding piece 221 is matched on the guide strip 241 in a sliding way along the second path; the second path includes a first moving component parallel to the telescopic direction of the first telescopic driving means 21 and a second moving component parallel to the first path.
Illustratively, at least two guide rods 222 may be disposed on the first connecting seat 22, a connecting plate 29 may be fixed on the movable portion of the first telescopic driving device 21, at least two guide through holes (perpendicular to the telescopic direction of the first telescopic driving device 21) may be opened on the connecting plate 29, and the guide rods 222 are slidably connected in the guide through holes in a one-to-one correspondence manner, so as to achieve the sliding fit between the movable portions of the first connecting seat 22 and the first telescopic driving device 21.
The direction of the guide strip 241 can be set according to the preset moving track of the first welding part, a guide groove can be arranged on the guide strip 241, and the sliding part 221 can be in sliding fit in the guide groove; under the telescopic driving of the first telescopic driving device 21, the first connecting seat 22 moves along the telescopic direction with the connecting plate 29 and simultaneously slides along the first path relative to the connecting plate 29, so that the first welding part fixed on the first clamping mechanism 25 can approach and abut against the body to be welded according to the preset moving track along with the sliding of the sliding part 221 on the guide strip 241 and can be far away from the body to be welded according to the preset moving track after the welding is finished; the guide strips 241 can be arranged in various ways corresponding to different moving tracks and can be replaced as required; therefore, the adjustability of the moving process of the first welding part can be enhanced, the angle of the first welding part when the first welding part is contacted with a main body to be welded can be controlled, meanwhile, the first welding part can flexibly avoid the obstacle through the arrangement of the moving path, the interference between the first welding part and related devices is avoided, and the applicability of the automatic welding and clamping system under the layout conditions of different main bodies to be welded and different devices is further improved.
The sliding member 221 is preferably a roller that changes a sliding fit into a rolling fit, so that friction between the sliding member 221 and the guide bar 241 and wear are reduced, and the first welding member moves more smoothly along the second path.
Preferably, an end of the guide rod 222 away from the first connection seat 22 may be provided with an elastic limiting member 223 (which may be a spring), and the guide rod 222 is abutted with a side surface of the connection plate 29 facing away from the first connection seat 22 through the elastic limiting member 223; the elastic limiting member 223 can drive the first connecting base 22 to move towards or away from the connecting plate 29 by the elastic force thereof, wherein when the elastic limiting member 223 is in a compressed state, the elastic limiting member can pull the sliding member 221, so that the sliding member 221 is kept in contact with one side of the guide bar 241; when the elastic limiting member 223 is in a stretched state, it can push the sliding member 221, so that the sliding member 221 is kept in contact with the other side of the guide bar 241. Through setting up the elasticity locating part 223, can make slider 221 keep the butt with one side of gib block 241 all the time, like this, gib block 241 only needs to set up to the strip of drawing and with one of them side finish machining for with slider 221 matched with spigot surface, and need not to set up in gib block 241 and be used for carrying out spacing guide way to slider 221 and all finish machining for the spigot surface with the both sides face of guide way to greatly reduced the processing degree of difficulty and reduced the processing cost.
Optionally, referring to fig. 1 to 10, the automatic welding clamping system further includes a second clamping assembly 3, and the second clamping assembly 3 includes a third connecting seat 31, a second pressing bar 32, a fifth telescopic driving device 33, a sixth telescopic driving device 34, and a seventh telescopic driving device 35; wherein:
the fixing part of the fifth telescopic driving device 33 is connected to the clamping platform; the fixed part of the sixth telescopic driving device 34 is connected to the movable part of the fifth telescopic driving device 33; the third connecting seat 31 is connected to the movable part of the sixth telescopic driving device 34, and the third connecting seat 31 has a first clamping part for placing a second welding part; the fixing part of the seventh telescopic driving device 35 is hinged to the third connecting seat 31 around the seventh rotating shaft; the second pressing bar 32 is hinged to the third connecting seat 31 around an eighth rotating shaft, one end of the second pressing bar 32 is hinged to the movable part of the seventh telescopic driving device 35 around a ninth rotating shaft, and the other end of the second pressing bar 32 is used for being abutted to a second welding part placed on the first clamping part so as to press the second welding part on the first clamping part; the seventh rotating shaft, the eighth rotating shaft and the ninth rotating shaft are parallel to each other and arranged in a triangle;
the sixth telescopic driving device 34 is used for driving the second welding part pressed on the first clamping part to be close to the to-be-welded main body on the clamping platform along the vertical direction; the fifth telescopic driving device 33 is used for driving the second welding part pressed on the first clamping part to be close to the body to be welded on the clamping platform along the horizontal direction.
As shown in fig. 10, in the initial state, the fifth telescopic driving means 33 is in a contracted state, the sixth telescopic driving means 34 is in a contracted state, and the seventh telescopic driving means 35 is in a contracted state; after the second welding part is placed on the first clamping part (the first clamping part can be provided with a clamping structure matched with the profile of the second welding part), the movable part of the seventh telescopic driving device 35 can be controlled to extend so as to drive the second pressing bar 32 to rotate relative to the third connecting seat 31 in the anticlockwise direction shown in the figure, meanwhile, the fixed part of the seventh telescopic driving device 35 is also matched with the rotation of the second pressing bar 32 to rotate relative to the third connecting seat 31 so as to ensure that the second pressing bar 32 can rotate continuously around the third connecting seat 31 until the second pressing bar 32 is abutted against the second welding part and the second welding part is pressed and fixed on the first clamping part; then, the movable part of the sixth telescopic driving device 34 is controlled to extend so as to lift the second welding part above the clamping platform; and finally, the movable part of the fifth telescopic driving device 33 is controlled to extend so as to horizontally push the second welding part to be attached to the corresponding welding part of the main body to be welded, so that the second welding part and the main body to be welded can be automatically welded through the welding assembly 6. It is understood that the sequence of the operations of the fifth telescopic driving device 33 and the sixth telescopic driving device 34 can be adjusted according to actual situations (for example, the second welding member can be horizontally pushed above the corresponding welding position of the main body to be welded by the fifth telescopic driving device 33, and then the sixth telescopic driving device 34 drives the second welding member to descend to be attached to the corresponding welding position of the main body to be welded), which is not limited in the above example.
Through setting up second clamping subassembly 3, can mutually support with first clamping subassembly 2 to with the different positions of different kinds of weldments on waiting to weld the main part simultaneously, thereby further improved welding process efficiency.
Optionally, referring to fig. 1 to 12, the automatic welding and clamping system further includes a protection assembly 4, where the protection assembly 4 includes a fourth connecting seat 41, a first connecting rod 42, a protection cover 43, an eighth telescopic driving device 44, and a ninth telescopic driving device 45; wherein:
the fixed part of the eighth telescopic driving device 44 is connected to the clamping platform; the fourth connecting seat 41 is connected to the movable part of the eighth telescopic driving device 44; the fixed part of the ninth telescopic driving device 45 is hinged to the fourth connecting seat 41 around the tenth rotating shaft; the first connecting rod 42 is hinged to the fourth connecting seat 41 around the eleventh rotating shaft, and one end of the first connecting rod 42 is hinged to the movable part of the ninth telescopic driving device 45 around the twelfth rotating shaft; the shield 43 is connected to the other end of the first link 42; the tenth rotating shaft, the eleventh rotating shaft and the twelfth rotating shaft are parallel to each other and arranged in a triangle;
the eighth telescopic driving device 44 is used for driving the protective cover 43 to approach to the to-be-welded body on the clamping platform along the vertical direction; the ninth telescopic driving means 45 is used to drive the shield 43 to cover the finish machining portion on the body to be welded.
As shown in fig. 11 and 12, in the initial state, the eighth telescopic driving device 44 is in a contracted state, the ninth telescopic driving device 45 is in a contracted state, and the protective cover 43 is in an opened state and lower than the clamping platform, so as to reserve a space for placing the main body to be welded; after the body to be welded is placed on the clamping platform, the movable part of the eighth telescopic driving device 44 can be controlled to extend so as to drive the fourth connecting seat 41 to ascend to a preset height position; then, the movable portion of the ninth retractable driving device 45 can be controlled to extend to drive the first connecting rod 42 to rotate clockwise relative to the fourth connecting seat 41 as shown in fig. 11, and meanwhile, the fixed portion of the ninth retractable driving device 45 also rotates relative to the fourth connecting seat 41 in cooperation with the rotation of the first connecting rod 42, so as to ensure that the first connecting rod 42 can rotate continuously around the fourth connecting seat 41 until the protective cover 43 covers the finish machining portion of the body to be welded; the finish machining portion has a high precision requirement, and the protective cover 43 can prevent welding slag generated in the welding process from splashing on a main body to be welded, so that the precision of the finish machining portion is affected by the welding slag. Wherein, the protection casing 43 can select the sheet metal bending piece made of copper.
Illustratively, when the length of the first link 42 extending in the transverse direction is long, the hinge portion between the first link 42 and the fourth link base 41 may be provided at two places at intervals; the protection cover 43 may be provided in plural along the transverse extending direction of the first link 42 to protect a plurality of finishing parts on the body to be welded.
Alternatively, referring to fig. 1 to 12, the protection cover 43 comprises a cover body 431 and a protection plate 432, and the protection assembly 4 further comprises a second positioning plate 46 and a tenth telescopic driving device 47; wherein:
a fixed part of the tenth telescopic driving device 47 is connected to the fourth connecting seat 41, the second positioning plate 46 is connected to a movable part of the tenth telescopic driving device 47, the second positioning plate 46 is provided with a second positioning pin, the second positioning plate 46 is used for placing a third welding part, and the second positioning pin is used for pin-hole matching with a second positioning through hole on the third welding part; the guard plate 432 is connected to the second positioning plate 46; the cover body 431 is connected to the other end of the first connecting rod 42, and the cover body 431 is provided with an air-avoiding channel; the other end of the first link 42 is provided with an abutting plane;
the ninth telescopic driving device 45 is used for driving the cover body 431 to cover the finish machining part on the main body to be welded; the tenth telescopic driving device 47 is used for driving the third welding member placed on the second positioning plate 46 to press on the abutting plane, and the tenth telescopic driving device 47 is used for simultaneously driving the guard plate 432 to cover the clearance passage.
As shown in fig. 11 and 12, the clearance passage of the cover 431, that is, the side of the cover 431 not covering the panel, can prevent the cover 431 from interfering with the related devices during the covering process by providing the clearance passage. In the specific implementation process, after the third welding part is fixed on the second positioning plate 46 (specifically, the second positioning through hole of the third welding part is matched with the second positioning pin), the ninth telescopic driving device 45 can drive the cover body 431 to cover the finish machining part of the main body to be welded, and the tenth telescopic driving device 47 can drive the guard plate 432 to move in the direction close to the cover body 431, so that the guard plate 432 covers the clearance channel, and the cover body 431 and the guard plate 432 jointly form a complete protective cover 43, thereby forming a blocking effect on welding slag generated in the welding process; meanwhile, the third welding part can be pressed on the abutting plane to realize the fixation of the third welding part on the corresponding welding position on the main body to be welded, and the smooth proceeding of the subsequent welding operation is ensured.
Through setting up protection component 4, can mutually support with first clamping subassembly 2, second clamping subassembly 3 to with the different positions of different types of welding piece on waiting to weld the main part simultaneously, and can treat simultaneously that the welding main part forms the guard action, thereby further improved welding process efficiency and guaranteed the precision of welding part.
Optionally, referring to fig. 1 to 13, the clamping platform includes a fixed bracket 1 and a third clamping assembly 5, and the third clamping assembly 5 includes a fifth connecting seat 51, a third pressing bar 52 and an eleventh telescopic driving device 53; wherein:
the fixed part of the first telescopic driving device 21 is connected to the fixed bracket 1; the fifth connecting seat 51 is connected to the fixed bracket 1, and the fifth connecting seat 51 is provided with a positioning part for erecting a main body to be welded; a fixed part of the eleventh telescopic driving device 53 is hinged to the fifth connecting seat 51 around the thirteenth rotating shaft; the third pressing bar 52 is hinged to the fifth connecting seat 51 around a fourteenth rotating shaft, and one end of the third pressing bar 52 is hinged to a movable part of the eleventh telescopic driving device 53 around a fifteenth rotating shaft; the thirteenth rotating shaft, the fourteenth rotating shaft and the fifteenth rotating shaft are parallel to each other and arranged in a triangle;
the eleventh telescopic driving device 53 is used for driving the other end of the third pressing bar 52 to abut against the main body to be welded so as to press the main body to be welded on the positioning part.
The fixed support 1 is a frame structure formed by welding or connecting a plurality of I-shaped steel members, square steel members and the like through threads. As shown in fig. 13, in the initial state, the eleventh telescopic driving means 53 is in a contracted state; after the to-be-welded main body is placed on the clamping platform, the movable part of the eleventh telescopic driving device 53 can be controlled to extend so as to drive the third pressing strip 52 to rotate relative to the fifth connecting seat 51 in the clockwise direction of the figure, and meanwhile, the fixed part of the eleventh telescopic driving device 53 also rotates relative to the fifth connecting seat 51 in cooperation with the rotation of the third pressing strip 52, so that the third pressing strip 52 can continuously rotate around the fifth connecting seat 51 until the third pressing strip 52 is abutted against the to-be-welded main body and the to-be-welded main body is fixed on the clamping platform in a pressing manner; after the main body to be welded is fixed, the welding parts can be respectively fixed at the corresponding welding positions on the main body to be welded so as to carry out subsequent automatic welding operation.
Through setting up third clamping subassembly 5, can mutually support with first clamping subassembly 2, second clamping subassembly 3, protection component 4 to the realization treats the quick fixation of welded main part and each welding piece, thereby has further improved welding process efficiency.
Alternatively, referring to fig. 1 to 3, the fixing bracket 1 is rectangular; the number of the first clamping assemblies 2 is two, and the number of the third clamping assemblies 5 is four; the two first clamping components 2 are respectively arranged on two opposite side edges of the fixed support 1; the second clamping component 3 and the protection component 4 are respectively arranged on the other two opposite side edges of the fixed support 1; the four third clamping components 5 are respectively arranged at four corners of the fixed support 1.
Optionally, referring to fig. 1 to 3, the automatic welding and clamping system further includes two driving turntables 7, the two driving turntables 7 are axially spaced, a line through hole 71 is formed in a circle center of each driving turntable 7, and the clamping platform is connected to the two driving turntables 7.
The driving turntable 7 can be driven by a motor matched with a transmission mechanism such as a worm and gear reduction box, and the driving turntable 7 can drive the clamping platform to rotate, so that the first clamping assembly 2, the second clamping assembly 3, the third clamping assembly 5 and the protection assembly 4 arranged on the clamping platform are driven to rotate, and further the main body to be welded and each welding part are driven to rotate; based on above-mentioned setting, the activity degree of freedom of the relative welding subassembly 6 of the main part of waiting to weld after the multiplicable is fixed finishes compares in only carrying out the welded mode through removing welding subassembly 6, through the adaptable more complicated welding track of drive carousel 7 with welding subassembly 6's drive cooperation, improve equipment's suitability and promotion welding precision.
Various electric connection wires, air channels and water channel pipes in the automatic welding and clamping system can be led to the outer sides of the two driving turntables 7, which are opposite to the clamping platform, through the wire through holes 71 and are connected with terminal equipment, so that the interference of welding operation on the clamping platform is avoided. The wire through hole 71 and the driving turntable 7 can be concentrically arranged, so that the problem of equipment operation failure caused by blocking or winding of wires and pipes in the wire through hole 71 and the rotating driving turntable 7 can be solved.
It should be noted that other contents of the automatic welding clamping system disclosed in the present invention can be referred to in the prior art, and are not described herein again.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The automatic welding clamping system is characterized by comprising a clamping platform and a first clamping assembly; the clamping platform is used for fixing the main body to be welded; the first clamping assembly comprises:
the fixing part of the first telescopic driving device is connected to the clamping platform;
the first connecting seat is connected to the movable part of the first telescopic driving device;
the fixing part of the second telescopic driving device is hinged to the first connecting seat around a first rotating shaft;
the first clamping mechanism is used for fixing a first welding part, hinged to the first connecting seat around a second rotating shaft, and hinged to a movable part of the second telescopic driving device around a third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other and arranged in a triangular shape;
the second telescopic driving device is used for driving the first welding part fixed on the first clamping mechanism to rotate relative to the main body to be welded fixed on the clamping platform; the first telescopic driving device is used for driving the first welding part fixed on the first clamping mechanism to abut against the main body to be welded fixed on the clamping platform;
the automatic welding and clamping system also comprises a guide strip; wherein:
one end of the guide strip is connected to the clamping platform; the first connecting seat is connected to the movable part of the first telescopic driving device in a sliding mode along a first path, and the first path is perpendicular to the telescopic direction of the first telescopic driving device; the first connecting seat is provided with a sliding piece which is in sliding fit on the guide strip along a second path; the second path includes a first movement component parallel to a telescopic direction of the first telescopic driving device and a second movement component parallel to the first path.
2. The automatic welding clamping system of claim 1, wherein the first clamping mechanism comprises a second connecting seat, a first positioning plate, a first pressing bar, a third telescopic driving device and a fourth telescopic driving device; wherein:
the second connecting seat is hinged to the first connecting seat around the second rotating shaft, and the second connecting seat is hinged to the movable part of the second telescopic driving device around the third rotating shaft;
the fixing part of the third telescopic driving device is connected to the second connecting seat; the first positioning plate is connected to the movable part of the third telescopic driving device, a first positioning pin is arranged on the first positioning plate, the first positioning plate is used for placing the first welding part, and the first positioning pin is used for performing pin hole matching with a first positioning through hole in the first welding part;
the fixing part of the fourth telescopic driving device is hinged to the second connecting seat around a fourth rotating shaft; the first pressing strip is hinged to the second connecting seat around a fifth rotating shaft, one end of the first pressing strip is hinged to a movable part of the fourth telescopic driving device around a sixth rotating shaft, and the other end of the first pressing strip is used for being abutted against the first welding piece placed on the first positioning plate so as to press the first welding piece on the first positioning plate; the fourth rotating shaft, the fifth rotating shaft and the sixth rotating shaft are parallel to each other and arranged in a triangle.
3. The automatic welding clamping system of claim 2, wherein a first correcting block is disposed on the first connecting seat, and a second correcting block is disposed on the second connecting seat; the first correcting block is provided with a first inclined part and a second inclined part, the first inclined part is obliquely arranged towards the first axial direction of the second rotating shaft along the direction far away from the first connecting seat, and the second inclined part is obliquely arranged towards the second axial direction of the second rotating shaft along the direction far away from the first connecting seat; the second correcting block is provided with a third inclined part and a fourth inclined part, the third inclined part is obliquely arranged towards the first axial direction along the direction far away from the second connecting seat, and the fourth inclined part is obliquely arranged towards the second axial direction along the direction far away from the second connecting seat; wherein the first axial direction is opposite the second axial direction; the first inclined part is used for being attached to the fourth inclined part, and the second inclined part is used for being attached to the third inclined part;
and/or a third correction block is arranged on the second connecting seat, and a fourth correction block is arranged on the first pressing bar; the third correcting block is provided with a fifth inclined part and a sixth inclined part, the fifth inclined part is obliquely arranged towards the third axial direction of the fifth rotating shaft along the direction far away from the second connecting seat, and the sixth inclined part is obliquely arranged towards the fourth axial direction of the fifth rotating shaft along the direction far away from the second connecting seat; the fourth correcting block is provided with a seventh inclined part and an eighth inclined part, the seventh inclined part is arranged in an inclined way towards the third axial direction along the direction far away from the first pressing strip, and the eighth inclined part is arranged in an inclined way towards the fourth axial direction along the direction far away from the first pressing strip; wherein the third axial direction is opposite the fourth axial direction; the fifth inclined portion is used for being attached to the eighth inclined portion, and the sixth inclined portion is used for being attached to the seventh inclined portion.
4. The automatic welding clamping system of claim 1, further comprising a limiting bar, a first bumper and a second bumper; wherein:
one end of the limiting strip is connected to the movable part of the second telescopic driving device, and the other end of the limiting strip extends along the contraction direction of the movable part of the second telescopic driving device and forms a bending part;
the fixing part of the first buffer is connected to the fixing part of the second telescopic driving device; in the process of extending the movable part of the second telescopic driving device, the movable part of the first buffer is used for being abutted against the bending part so as to prevent the movable part of the second telescopic driving device from extending;
the fixing part of the second buffer is connected to the fixing part of the second telescopic driving device; and in the process of contracting the movable part of the second telescopic driving device, the movable part of the second buffer is used for being abutted against the first clamping mechanism so as to prevent the movable part of the second telescopic driving device from contracting.
5. The automatic welding clamping system of claim 1, further comprising a second clamping assembly, wherein the second clamping assembly comprises a third connecting seat, a second bead, a fifth telescopic driving device, a sixth telescopic driving device and a seventh telescopic driving device; wherein:
the fixing part of the fifth telescopic driving device is connected to the clamping platform; the fixed part of the sixth telescopic driving device is connected to the movable part of the fifth telescopic driving device; the third connecting seat is connected to the movable part of the sixth telescopic driving device and is provided with a first clamping part, and the first clamping part is used for placing a second welding part; the fixing part of the seventh telescopic driving device is hinged to the third connecting seat around a seventh rotating shaft; the second pressing strip is hinged to the third connecting seat around an eighth rotating shaft, one end of the second pressing strip is hinged to a movable part of the seventh telescopic driving device around a ninth rotating shaft, and the other end of the second pressing strip is used for being abutted to the second welding piece placed on the first clamping part so as to press the second welding piece on the first clamping part; the seventh rotating shaft, the eighth rotating shaft and the ninth rotating shaft are parallel to each other and arranged in a triangle;
the sixth telescopic driving device is used for driving the second welding piece pressed on the first clamping part to be close to the to-be-welded main body on the clamping platform along the vertical direction; and the fifth telescopic driving device is used for driving the second welding part which is pressed on the first clamping part to be close to the main body to be welded on the clamping platform along the horizontal direction.
6. The automatic welding clamping system of claim 1, further comprising a protection assembly, the protection assembly comprising a fourth connecting seat, a first connecting rod, a protective cover, an eighth telescopic driving device, and a ninth telescopic driving device; wherein:
the fixing part of the eighth telescopic driving device is connected to the clamping platform; the fourth connecting seat is connected to the movable part of the eighth telescopic driving device; the fixing part of the ninth telescopic driving device is hinged to the fourth connecting seat around a tenth rotating shaft; the first connecting rod is hinged to the fourth connecting seat around an eleventh rotating shaft, and one end of the first connecting rod is hinged to the movable part of the ninth telescopic driving device around a twelfth rotating shaft; the protective cover is connected to the other end of the first connecting rod; the tenth rotating shaft, the eleventh rotating shaft and the twelfth rotating shaft are parallel to each other and arranged in a triangle;
the eighth telescopic driving device is used for driving the protective cover to be close to the to-be-welded main body on the clamping platform along the vertical direction; and the ninth telescopic driving device is used for driving the protective cover to cover the finish machining part on the main body to be welded.
7. The automatic welding clamping system of claim 6, wherein the protective cover comprises a cover body and a protective plate, and the protective assembly further comprises a second positioning plate and a tenth telescopic driving device; wherein:
the fixed part of the tenth telescopic driving device is connected to the fourth connecting seat, the second positioning plate is connected to the movable part of the tenth telescopic driving device, the second positioning plate is provided with a second positioning pin, the second positioning plate is used for placing a third welding part, and the second positioning pin is used for pin hole matching with a second positioning through hole in the third welding part; the guard plate is connected to the second positioning plate; the cover body is connected to the other end of the first connecting rod and is provided with a clearance passage; the other end of the first connecting rod is provided with an abutting plane;
the ninth telescopic driving device is used for driving the cover body to cover the finish machining part on the main body to be welded; the tenth telescopic driving device is used for driving the third welding piece placed on the second positioning plate to be pressed on the abutting plane, and the tenth telescopic driving device is used for driving the guard plate to cover the clearance channel at the same time.
8. The automatic welding clamping system of claim 1, wherein the clamping platform comprises a fixed support and a third clamping assembly, and the third clamping assembly comprises a fifth connecting seat, a third pressing bar and an eleventh telescopic driving device; the fixing part of the first telescopic driving device is connected to the fixing support; the fifth connecting seat is connected to the fixed support and provided with a positioning part used for erecting the main body to be welded; the fixing part of the eleventh telescopic driving device is hinged to the fifth connecting seat around a thirteenth rotating shaft; the third pressing strip is hinged to the fifth connecting seat around a fourteenth rotating shaft, and one end of the third pressing strip is hinged to a movable part of the eleventh telescopic driving device around a fifteenth rotating shaft; the thirteenth rotating shaft, the fourteenth rotating shaft and the fifteenth rotating shaft are parallel to each other and arranged in a triangle; the eleventh telescopic driving device is used for driving the other end of the third pressing strip to be abutted against the main body to be welded so as to press the main body to be welded on the positioning part;
and/or, the automatic welding and clamping system further comprises two driving turntables which are arranged at intervals along the axial direction, a line passing through hole is formed in the circle center of each driving turntable, and the clamping platform is connected to the two driving turntables.
9. The automated welding clamping system of claim 8, wherein the fixed support is rectangular; the number of the first clamping components is two, and the number of the third clamping components is four; the two first clamping assemblies are respectively arranged on two opposite side edges of the fixed support, and the four third clamping assemblies are respectively arranged at four corners of the fixed support.
CN202211244577.8A 2022-10-12 2022-10-12 Automatic welding and clamping system Active CN115302178B (en)

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