CN116511792A - Back frame subassembly welding frock - Google Patents

Back frame subassembly welding frock Download PDF

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Publication number
CN116511792A
CN116511792A CN202310317956.3A CN202310317956A CN116511792A CN 116511792 A CN116511792 A CN 116511792A CN 202310317956 A CN202310317956 A CN 202310317956A CN 116511792 A CN116511792 A CN 116511792A
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CN
China
Prior art keywords
plate
positioning
driving
assembly
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310317956.3A
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Chinese (zh)
Inventor
黄仁标
邬丹斌
葛吉良
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Ningbo Ruyi JSCL
Original Assignee
Ningbo Ruyi JSCL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Ruyi JSCL filed Critical Ningbo Ruyi JSCL
Priority to CN202310317956.3A priority Critical patent/CN116511792A/en
Publication of CN116511792A publication Critical patent/CN116511792A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B23K37/0443—Jigs
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention relates to the technical field of welding tools, and particularly discloses a rear frame assembly welding tool which comprises a supporting mechanism, a positioning mechanism and a driving mechanism, wherein a vertical plate is placed on a supporting bottom plate during welding, the vertical plate is fixedly positioned through a first positioning assembly, a third positioning assembly and a fourth positioning assembly are moved to one side of the supporting bottom plate far away from the vertical plate during welding a guide rail, at the moment, the third positioning assembly and the fourth positioning assembly cannot interfere welding of the guide rail and the vertical plate, after the guide rail is welded, the wheel frame fixing plate is clamped to a preset position, the third positioning assembly is moved to position the wheel frame fixing plate, the wheel frame fixing plate is welded after positioning, the coaming is clamped to a preset position, the fourth positioning assembly is moved to the position right above the coaming, the coaming is positioned, the multiple parts of the rear frame assembly can be welded on the same welding tool, the positioning accuracy can be ensured, and the cost is saved.

Description

Back frame subassembly welding frock
Technical Field
The invention relates to the technical field of welding tools, in particular to a rear frame assembly welding tool.
Background
The rear frame assembly is an important part of the forklift and generally comprises four parts, namely a vertical plate, a guide rail, a wheel carrier fixing plate and a coaming, wherein in the manufacturing process of the rear frame assembly, a plurality of component parts are generally positioned through a plurality of tools, and at least three welding tools are generally required; however, there is a great problem in that parts need to be repeatedly moved, which easily causes positioning errors, and welding of one assembly requires a plurality of tooling devices, which causes a great increase in cost.
Disclosure of Invention
The invention is made in consideration of the problems, and the invention aims to provide a rear frame assembly welding tool which can finish welding of a plurality of parts on one welding tool, ensure positioning accuracy, save cost and realize complete welding.
In order to achieve the above object, the present invention provides a welding fixture for a rear frame assembly, the rear frame assembly including a riser, a rail, a wheel frame fixing plate and a coaming, the welding fixture being used for welding the rail, the wheel frame fixing plate and the coaming to the riser, the welding fixture including a supporting mechanism and a positioning mechanism provided on the supporting mechanism, the supporting mechanism including a reversible supporting base plate, the positioning mechanism including a first positioning assembly for fixing the riser, a second positioning assembly for fixing two of the rails on opposite sides of the riser, a third positioning assembly for fixing the wheel frame fixing plate to a rear end of the riser, and a fourth positioning assembly for fixing the coaming to the wheel frame fixing plate, wherein the third positioning assembly and the fourth positioning assembly are movably provided on the supporting base plate;
when the welding tool is used for welding the guide rail, the third positioning assembly and the fourth positioning assembly can both move to one side of the supporting bottom plate far away from the vertical plate; when the welding fixture is used for welding the wheel carrier fixing plate, the fourth positioning assembly can move to one side of the supporting bottom plate away from the vertical plate.
According to the rear frame assembly welding fixture, the supporting mechanism further comprises a driving position changing machine and a driven position changing machine, and the driving position changing machine and the driven position changing machine are respectively positioned on two symmetrical sides of the supporting bottom plate;
the driving positioner comprises a main support frame, a driving turntable rotatably arranged on the main support frame and a driving motor for driving the driving turntable to rotate, the driven positioner comprises an auxiliary support frame and a driven turntable rotatably arranged on the auxiliary support frame, and two sides of the support bottom plate are respectively connected with the driving turntable and the driven turntable.
According to the rear frame assembly welding fixture, through holes are formed in two sides of the middle of the vertical plate; the first positioning component comprises a first positioning cylinder, a first clamping cylinder and a second clamping cylinder which are fixed on the supporting bottom plate, a pressing plate is arranged on a telescopic shaft of the first positioning cylinder, the pressing plate is attached to the front end face of the vertical plate, at least two first clamping cylinders are symmetrically distributed at the front end of the vertical plate, the telescopic shaft of each first clamping cylinder can be abutted to the top of the front end of the vertical plate, two second clamping cylinders are arranged on two sides of the middle of the vertical plate through two through holes, and the telescopic shaft of each second clamping cylinder can be abutted to the top of the middle of the vertical plate.
According to the rear frame assembly welding fixture, the adjusting plate is arranged on the front end of the vertical plate, the first positioning assembly further comprises two adjusting screws, the two adjusting screws are symmetrically distributed on the supporting bottom plate at the front end of the vertical plate, and one end of each adjusting screw is in threaded connection with the adjusting plate.
According to the rear frame assembly welding tool, the second positioning assembly comprises a third clamping cylinder and a clamping seat, the third clamping cylinder is fixed on the supporting bottom plate and is positioned on one side of the guide rail, a first clamping plate is arranged on a telescopic shaft of the third clamping cylinder, and the first clamping plate can be abutted with the top of the guide rail;
the clamping seat comprises a clamping seat main body which is abutted with the outer side of the guide rail and a second clamping plate which can be abutted with the inner side of the guide rail, and the second clamping plate is rotatably arranged on the clamping seat main body.
According to the rear frame assembly welding fixture, the rear frame assembly welding fixture further comprises a driving mechanism, wherein the driving mechanism comprises a first driving assembly for driving the third positioning assembly to move and a second driving assembly for driving the fourth positioning assembly to move.
According to the welding fixture for the rear frame assembly, the first driving assembly comprises two guide shafts symmetrically arranged on the supporting bottom plate, a first sliding block slidably arranged on the guide shafts, a first connecting plate connected with the bottom of the third positioning assembly and a first driving air cylinder fixed at the bottom of the supporting bottom plate, the guide shafts are arranged on the supporting bottom plate along the front-back direction of the vertical plate, and the telescopic shafts of the first driving air cylinders are connected with the first connecting plate.
According to the rear frame assembly welding fixture, the wheel carrier fixing plate comprises a driving wheel fixing plate and two driven wheel fixing plates arranged on two sides of the driving wheel fixing plate, wherein the driving wheel fixing plate is provided with a first mounting hole, and the two driven wheel fixing plates are respectively provided with a second mounting hole;
the third positioning component comprises a first fixing seat, first positioning protrusions, a first mounting seat and a fourth clamping cylinder, wherein the first fixing seat is fixedly connected with the first sliding block, the first positioning protrusions are distributed on two sides of the first fixing seat, the first mounting seat is connected with the first fixing seat, the fourth clamping cylinder is arranged on the first mounting seat, when the third positioning component moves towards one side close to the wheel frame fixing plate, the first positioning protrusions can be clamped into the second mounting holes, and a third clamping plate on the fourth clamping cylinder can penetrate through the first mounting holes and is in butt joint with the front end face of the driving wheel fixing plate.
According to the welding fixture for the rear frame assembly, the second driving assembly comprises two sliding rails symmetrically arranged on the supporting bottom plate, a second sliding block slidably arranged on the sliding rails, a second connecting plate used for being connected with the fourth positioning assembly, and a second driving cylinder fixed at the bottom of the supporting bottom plate, wherein the sliding rails are arranged on the supporting bottom plate along the front-back direction of the vertical plate, and the second driving cylinder is connected with the second connecting plate.
According to the welding fixture for the rear frame assembly, the fourth positioning assembly comprises a correction plate positioned above the coaming and extrusion shafts positioned on two sides of the coaming, two ends of the correction plate are connected with the sliding block through supporting seats, correction bolts used for extruding the top of the coaming are arranged on the correction plate, and the extrusion shafts can be in butt joint with one side of the coaming.
The invention has the following beneficial effects: when welding is carried out by using the welding tool, the vertical plate is placed on the supporting bottom plate by using the manipulator, the position of the supporting vertical plate is adjusted through the first positioning component, the vertical plate is fixedly positioned, when the guide rail is welded, the third positioning component and the fourth positioning component are moved away to one side of the supporting bottom plate far away from the vertical plate, at the moment, the third positioning component and the fourth positioning component can not interfere the welding of the guide rail and the vertical plate, after the guide rail is welded, the wheel carrier fixing plate can be clamped to a preset position by using the manipulator, the third positioning component is moved to position the wheel carrier fixing plate, after the positioning is finished, the coaming is clamped to the preset position by using the manipulator, the fourth positioning component is moved to the position right above the coaming, the coaming is positioned, the multipart welding of the rear frame component can be realized on the same welding tool, the positioning precision can be ensured, the cost is saved, the supporting bottom plate can be overturned, the welding can be more comprehensive, and the welding strength is high.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a rear frame assembly and a welding fixture assembly of an embodiment;
FIG. 2 is an assembly view of a positioning mechanism and a support base of an embodiment;
FIG. 3 is an assembled schematic view of a driving mechanism and a positioning mechanism according to an embodiment;
fig. 4 is a schematic structural view of a rear frame assembly of an embodiment.
In the figure:
1. a rear frame assembly; 11. a vertical plate; 111. an adjusting plate; 12. a guide rail; 13. a wheel carrier fixing plate; 131. a driving wheel fixing plate; 131a, a first mounting hole; 132. a driven wheel fixing plate; 132a, a second mounting hole; 14. coaming plate;
2. a support mechanism; 21. a support base plate; 22. an active positioner; 221. a main support frame; 222. a driving turntable; 223. an active motor; 23. a driven positioner; 231. an auxiliary supporting frame; 232. a driven turntable;
3. a positioning mechanism; 31. a first positioning assembly; 311. a first positioning cylinder; 311a, a pressing plate; 312. a first clamping cylinder; 313. a second clamping cylinder; 314. an adjusting bolt; 32. a second positioning assembly; 321. a third clamping cylinder; 321a, a first clamping plate; 322. a clamping seat; 322a, a holder body; 322b, a second clamping plate; 33. a third positioning assembly; 331. a first fixing seat; 332. a first protrusion; 333. a first mount; 334. a fourth clamping cylinder; 334a, third clamping plate; 34. a fourth positioning assembly; 341. a correction plate; 341a, correction bolts; 342. an extrusion shaft;
4. a driving mechanism; 41. a first drive assembly; 411. a guide shaft; 412. a first slider; 413. a first connection plate; 42. a second drive assembly; 421. a slide rail; 422. a second slider; 423. a second connecting plate; 424. and a second driving cylinder.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, a rear frame assembly welding fixture comprises a supporting mechanism 2 for providing support, a positioning mechanism 3 arranged on the supporting mechanism 2 and a driving mechanism 4, wherein a third positioning assembly 33 and a fourth positioning assembly 34 in the positioning mechanism 3 can be driven by the driving mechanism 4, the third positioning assembly 33 and the fourth positioning assembly 34 can be removed when a guide rail 12 and a vertical plate 11 are welded, the third positioning assembly 33 and the fourth positioning assembly 34 can be prevented from interfering with a welding device, and the fourth positioning assembly 34 can be removed when a wheel frame fixing plate 13 is welded, so that the fourth positioning assembly 34 and the welding device are prevented from interfering, the avoidance effect is achieved, and a plurality of parts of the rear frame assembly 1 are welded on the same welding fixture.
Specifically, the rear frame assembly 1 includes a riser 11, a rail 12, a wheel carrier fixing plate 13, and a coaming 14, and the welding fixture of this embodiment is used for welding the rail 12, the wheel carrier fixing plate 13, and the coaming 14 to the riser 11, in which the first step welds two rails 12 to both sides of the riser 11, the second step welds the wheel carrier fixing plate 13 to the rear end of the riser 11, and the third step welds the coaming 14 to the rear end of the riser 11.
Specifically, the supporting mechanism 2 includes a reversible supporting base 21, a main positioner and a slave positioner, the main positioner 22 and the slave positioner 23 are respectively located at two symmetrical sides of the supporting base 21, the main positioner 22 includes a main support 221, a driving turntable 222 rotatably disposed on the main support 221, and a driving motor 223 for driving the driving turntable 222 to rotate, the slave positioner 23 includes a secondary support 231 and a slave turntable 232 rotatably disposed on the secondary support 231, two sides of the supporting base 21 are respectively connected with the driving turntable 222 and the slave turntable 232, and when the welding angle needs to be adjusted, the driving motor 223 drives the driving turntable 222 to rotate, thereby driving the supporting base 21 to rotate, and the slave turntable 232 also rotates along with the driving turntable 231.
Further, the positioning mechanism 3 comprises a first positioning component 31 for fixing the riser 11, a second positioning component 32 for fixing the two guide rails 12 on two opposite sides of the riser 11, a third positioning component 33 for fixing the wheel carrier fixing plate 13 on the tail end of the riser 11, and a fourth positioning component 34 for fixing the coaming 14 on the wheel carrier fixing plate 13, wherein the third positioning component 33 and the fourth positioning component 34 are movably arranged on the supporting bottom plate 21, when the welding fixture is used for welding the guide rails 12, the third positioning component 33 and the fourth positioning component 34 can move to one side of the supporting bottom plate 21 far away from the riser 11, when the welding fixture is used for welding the wheel carrier fixing plate 13, namely, the positions of the riser 11 and the guide rails 12 are fixed by the first positioning component 31 and the second positioning component 32, the third positioning component 33 and the fourth positioning component 34 are prevented from moving away from the first positioning component 33 and the fourth positioning component 34, when the welding fixture is used for welding the guide rails 12, the positioning component 33 and the fourth positioning component 34 is prevented from interfering with the first positioning component 31 and the fourth positioning component 34 to fix the wheel carrier fixing plate 13 when the welding fixture is used for welding the wheel carrier fixing plate 13.
Further, through holes are formed in two sides of the middle of the vertical plate 11, the first positioning component 31 comprises a first positioning cylinder 311, a first clamping cylinder 312 and a second clamping cylinder 313 which are fixed on the supporting bottom plate 21, a pressing plate 311a is arranged on a telescopic shaft of the first positioning cylinder 311, the pressing plate 311a is attached to the front end face of the vertical plate 11, at least two first clamping cylinders 312 are symmetrically distributed at the front end of the vertical plate 11, the telescopic shaft of the first clamping cylinder 312 can be abutted to the top of the front end of the vertical plate 11, two second clamping cylinders 313 are arranged on two sides of the middle of the vertical plate 11 through the two through holes, the telescopic shaft of the second clamping cylinder 313 can be abutted to the top of the middle of the vertical plate 11, when the vertical plate 11 is placed on the supporting bottom plate 21 by a manipulator, position adjustment is performed through the first positioning cylinder 311, and installation positioning of the vertical plate 11 is completed through the first clamping cylinder 312 and the second clamping cylinder 313.
Still further, the front end of the vertical plate 11 is provided with an adjusting plate 111, the first positioning component 31 further comprises two adjusting screws, the two adjusting screws are symmetrically distributed on the supporting bottom plate 21 at the front end of the vertical plate 11, one end of each adjusting screw is in threaded connection with the adjusting plate 111, after the vertical plate 11 is adjusted by the first positioning cylinder 311, fine adjustment can be performed through the two adjusting screws, positioning accuracy of the vertical plate 11 is ensured, and accordingly welding accuracy is ensured.
Further, the second positioning assembly 32 includes a third clamping cylinder 321 and a clamping seat 322, the third clamping cylinder 321 is fixed on the supporting bottom plate 21 and is located at one side of the guide rail 12, a first clamping plate 321a is disposed on a telescopic shaft of the third clamping cylinder 321, the first clamping plate 321a can be abutted to the top of the guide rail 12, the clamping seat 322 includes a clamping seat main body 322a abutted to the outer side of the guide rail 12 and a second clamping plate 322b abutted to the inner side of the guide rail 12, the second clamping plate 322b is rotatably disposed on the clamping seat main body 322a, before the guide rail 12 is welded, the guide rail 12 is clamped to two sides of the vertical plate 11 by using a manipulator, the third clamping cylinder 321 drives the telescopic shaft to rotate, positioning of the guide rail 12 in the vertical direction is achieved by using the first clamping plate 321a, positioning of the guide rail 12 in the horizontal direction is achieved by using the second clamping plate 322b on the clamping seat 322, and positioning of the guide rail 12 is completed.
To achieve movement of the third positioning assembly 33 and the fourth positioning assembly 34, in this embodiment the drive mechanism 4 comprises a first drive assembly 41 for driving movement of the third positioning assembly 33 and a second drive assembly 42 for driving movement of the fourth positioning assembly 34.
Specifically, the first driving assembly 41 includes two guide shafts 411 symmetrically disposed on the support base 21, a first slider 412 slidably disposed on the guide shafts 411, a first connection plate 413 connected to the bottom of the third positioning assembly 33, and a first driving cylinder fixed to the bottom of the support base 21, the guide shafts 411 being disposed on the support base 21 along the front-rear direction of the vertical plate 11, the telescopic shafts of the first driving cylinders being connected to the first connection plate 413, the first driving cylinders being disposed on the support base 21 along the front-rear direction of the vertical plate 11, the first driving cylinders driving the third positioning assembly 33 to move along the arrangement direction of the guide shafts 411 through the first connection plate 413.
Specifically, the wheel carrier fixing plate 13 includes a driving wheel fixing plate 131 and two driven wheel fixing plates 132 disposed on two sides of the driving wheel fixing plate 131, a first mounting hole 131a is disposed on the driving wheel fixing plate 131, second mounting holes 132a are disposed on the two driven wheel fixing plates 132, the third positioning assembly 33 includes a first fixing seat 331 fixedly connected to the first slider 412, first positioning protrusions distributed on two sides of the first fixing seat 331, a first mounting seat 333 connected to the first fixing seat 331, and a fourth clamping cylinder 334 disposed on the first mounting seat 333, when the third positioning assembly 33 moves towards a side close to the wheel carrier fixing plate 13, the first positioning protrusions can be clamped into the second mounting holes 132a, and the third clamping plates 334a on the fourth clamping cylinder 334 can pass through the first mounting holes 131a and abut against the front end surfaces of the driving wheel fixing plate 131, positioning of the two driven wheel fixing plates 132 is achieved through the first positioning protrusions, and the driving wheel fixing plate 131 is achieved through the third clamping plates 334a on the fourth clamping cylinder 334, so that the clamping positioning of the whole wheel carrier fixing plate 13 is achieved, and simultaneously, the first clamping fixing seat 331 and the whole driving seat 33 can be conveniently adjusted.
Specifically, the second driving assembly 42 includes two sliding rails 421 symmetrically disposed on the supporting base 21, a second sliding block 422 slidably disposed on the sliding rails 421, a second connecting plate 423 for connecting with the fourth positioning assembly 34, and a second driving cylinder fixed on the bottom of the supporting base 21, where the sliding rails 421 are disposed on the supporting base 21 along the front-back direction of the vertical plate 11, the second driving cylinder is connected with the second connecting plate 423, and the two second driving cylinders drive two ends of the fourth positioning assembly 34 to move along the arrangement direction of the sliding rails 421 through the two second connecting plates 423.
Further, the shroud plate 14 is located above the wheel carrier fixing plate 13, when the shroud plate 14 is fixed, the shroud plate 14 needs to be fixed from above and from two sides, therefore, the fourth positioning assembly 34 comprises a correction plate 341 located above the shroud plate 14 and extrusion shafts 342 located at two sides of the shroud plate 14, two ends of the correction plate 341 are connected with the sliding blocks through supporting seats, correction bolts 341a for extruding the top of the shroud plate 14 are arranged on the correction plate 341, the extrusion shafts 342 can be abutted with one side of the shroud plate 14, and when the correction plate 341 moves to the upper side of the shroud plate 14 through the supporting seats, the correction bolts 341a can be screwed to correct the top position of the shroud plate 14, and the shroud plate 14 is clamped and fixed through the two extrusion shafts 342.
The technical scheme of the invention is explained in detail above with reference to the accompanying drawings, and the described embodiments are used for helping to understand the idea of the invention. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

Claims (10)

1. A welding fixture for a rear frame assembly, the rear frame assembly comprises a vertical plate, a guide rail, a wheel carrier fixing plate and a coaming, and the welding fixture is used for welding the guide rail, the wheel carrier fixing plate and the coaming to the vertical plate, and is characterized in that the welding fixture comprises a supporting mechanism and a positioning mechanism arranged on the supporting mechanism, the supporting mechanism comprises a reversible supporting bottom plate, the positioning mechanism comprises a first positioning component used for fixing the vertical plate, a second positioning component used for fixing two guide rails on two opposite sides of the vertical plate, a third positioning component used for fixing the wheel carrier fixing plate at the tail end of the vertical plate and a fourth positioning component used for fixing the coaming to the upper part of the wheel carrier fixing plate, and the third positioning component and the fourth positioning component are movably arranged on the supporting bottom plate;
when the welding tool is used for welding the guide rail, the third positioning assembly and the fourth positioning assembly can both move to one side of the supporting bottom plate far away from the vertical plate; when the welding fixture is used for welding the wheel carrier fixing plate, the fourth positioning assembly can move to one side of the supporting bottom plate away from the vertical plate.
2. The rear frame assembly welding fixture of claim 1, wherein the support mechanism further comprises a driving positioner and a driven positioner, wherein the driving positioner and the driven positioner are respectively positioned at two symmetrical sides of the support bottom plate;
the driving positioner comprises a main support frame, a driving turntable rotatably arranged on the main support frame and a driving motor for driving the driving turntable to rotate, the driven positioner comprises an auxiliary support frame and a driven turntable rotatably arranged on the auxiliary support frame, and two sides of the support bottom plate are respectively connected with the driving turntable and the driven turntable.
3. The rear frame assembly welding fixture according to claim 1, wherein through holes are formed in two sides of the middle of the vertical plate; the first positioning component comprises a first positioning cylinder, a first clamping cylinder and a second clamping cylinder which are fixed on the supporting bottom plate, a pressing plate is arranged on a telescopic shaft of the first positioning cylinder, the pressing plate is attached to the front end face of the vertical plate, at least two first clamping cylinders are symmetrically distributed at the front end of the vertical plate, the telescopic shaft of each first clamping cylinder can be abutted to the top of the front end of the vertical plate, two second clamping cylinders are arranged on two sides of the middle of the vertical plate through two through holes, and the telescopic shaft of each second clamping cylinder can be abutted to the top of the middle of the vertical plate.
4. The rear frame assembly welding fixture of claim 3, wherein an adjusting plate is arranged on the front end of the vertical plate, the first positioning assembly further comprises two adjusting screws, the two adjusting screws are symmetrically distributed on the supporting bottom plate at the front end of the vertical plate, and one end of each adjusting screw is in threaded connection with the adjusting plate.
5. The back frame assembly welding tool according to claim 1, wherein the second positioning assembly comprises a third clamping cylinder and a clamping seat, the third clamping cylinder is fixed on the supporting bottom plate and is positioned on one side of the guide rail, a first clamping plate is arranged on a telescopic shaft of the third clamping cylinder, and the first clamping plate can be abutted with the top of the guide rail;
the clamping seat comprises a clamping seat main body which is abutted with the outer side of the guide rail and a second clamping plate which can be abutted with the inner side of the guide rail, and the second clamping plate is rotatably arranged on the clamping seat main body.
6. The back frame assembly welding fixture of claim 1, further comprising a drive mechanism including a first drive assembly for driving the third positioning assembly in motion and a second drive assembly for driving the fourth positioning assembly in motion.
7. The back frame assembly welding tool according to claim 6, wherein the first driving assembly comprises two guide shafts symmetrically arranged on the supporting bottom plate, a first sliding block slidably arranged on the guide shafts, a first connecting plate connected with the bottom of the third positioning assembly, and a first driving air cylinder fixed at the bottom of the supporting bottom plate, the guide shafts are arranged on the supporting bottom plate along the front-back direction of the vertical plate, and the telescopic shafts of the first driving air cylinders are connected with the first connecting plate.
8. The rear frame assembly welding fixture of claim 7, wherein the wheel carrier fixing plate comprises a driving wheel fixing plate and two driven wheel fixing plates arranged on two sides of the driving wheel fixing plate, the driving wheel fixing plate is provided with a first mounting hole, and the two driven wheel fixing plates are provided with second mounting holes;
the third positioning component comprises a first fixing seat, first positioning protrusions, a first mounting seat and a fourth clamping cylinder, wherein the first fixing seat is fixedly connected with the first sliding block, the first positioning protrusions are distributed on two sides of the first fixing seat, the first mounting seat is connected with the first fixing seat, the fourth clamping cylinder is arranged on the first mounting seat, when the third positioning component moves towards one side close to the wheel frame fixing plate, the first positioning protrusions can be clamped into the second mounting holes, and a third clamping plate on the fourth clamping cylinder can penetrate through the first mounting holes and is in butt joint with the front end face of the driving wheel fixing plate.
9. The welding fixture of the rear frame assembly according to claim 6, wherein the second driving assembly comprises two sliding rails symmetrically arranged on the supporting bottom plate, a second sliding block slidably arranged on the sliding rails, a second connecting plate used for being connected with the fourth positioning assembly, and a second driving air cylinder fixed at the bottom of the supporting bottom plate, the sliding rails are arranged on the supporting bottom plate along the front-back direction of the vertical plate, and the second driving air cylinder is connected with the second connecting plate.
10. The back frame assembly welding tool according to claim 9, wherein the fourth positioning assembly comprises a correction plate positioned above the surrounding plate and extrusion shafts positioned on two sides of the surrounding plate, two ends of the correction plate are connected with the sliding blocks through supporting seats, correction bolts used for extruding the top of the surrounding plate are arranged on the correction plate, and the extrusion shafts can be abutted with one side of the surrounding plate.
CN202310317956.3A 2023-03-28 2023-03-28 Back frame subassembly welding frock Pending CN116511792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310317956.3A CN116511792A (en) 2023-03-28 2023-03-28 Back frame subassembly welding frock

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Application Number Priority Date Filing Date Title
CN202310317956.3A CN116511792A (en) 2023-03-28 2023-03-28 Back frame subassembly welding frock

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CN116511792A true CN116511792A (en) 2023-08-01

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