CN119489271A - Welding jig of ladder frame - Google Patents
Welding jig of ladder frame Download PDFInfo
- Publication number
- CN119489271A CN119489271A CN202510068844.8A CN202510068844A CN119489271A CN 119489271 A CN119489271 A CN 119489271A CN 202510068844 A CN202510068844 A CN 202510068844A CN 119489271 A CN119489271 A CN 119489271A
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- Prior art keywords
- ladder
- column
- base plate
- diagonal bracing
- jig
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to the field of automatic welding equipment, in particular to a welding jig for a ladder outer frame, which comprises a base plate, a cross beam jig used for fixing the cross beam on the base plate, a left ladder column jig used for enabling a left ladder column to be placed on the base plate along the Y direction, the bottom wall of the left ladder column is supported on the top wall of one end of the cross beam, a right ladder column jig used for enabling a right ladder column to be placed on the base plate along the Y direction, the bottom wall of the right ladder column is supported on the top wall of the other end of the cross beam, ladder rail jigs used for enabling a plurality of ladder rails to be fixed on the base plate along the Y direction, the bottom walls of the two ends of each ladder rail are supported on the top wall of the left ladder column and the top wall of the right ladder column respectively, two diagonal braces jigs are respectively used for enabling two diagonal braces to be symmetrically fixed on the base plate along the X direction, one ends of the two diagonal braces are supported on the inner sides of the left ladder column and the right ladder column respectively, and the other ends of the two diagonal braces are supported on the bottom wall of the same ladder rail. The embodiment of the invention can be applied to a laser welding robot with a rotary disc, so that the automatic welding of the ladder outer frame can be realized.
Description
Technical Field
The invention relates to the field of automatic welding equipment, in particular to a welding jig for a ladder outer frame.
Background
The ladder frame is integrated into one piece welded formation, needs operating personnel to fix left side ladder post, right side ladder post, ladder shelves, bracing and the crossbeam of ladder frame in proper order in the tool, then welded formation, because the length of the welding seam of ladder frame is longer, and manual welding's cost is extremely high, consequently, people need the equipment that can automatic welding ladder frame urgently.
Disclosure of Invention
The invention aims to provide a welding jig for a ladder outer frame, which aims to solve the problem of how to fix a left ladder post, a right ladder post, a ladder rail, an inclined strut and a cross beam of the ladder outer frame, thereby providing a proper welding environment for automatically welding the ladder outer frame.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
The welding jig for the outer frame of the ladder comprises a base plate, a beam jig, a left ladder post jig, a right ladder post jig, a plurality of ladder stop jigs and two diagonal brace jigs, wherein the beam jig, the left ladder post jig, the right ladder post jig, the plurality of ladder stop jigs and the two diagonal brace jigs are arranged on the base plate, the base plate is provided with a top wall extending along the X direction and the Y direction, the X direction and the Y direction are horizontal and perpendicular to each other, the Z direction is perpendicular to the X direction and the Y direction, the beam jig is used for fixing the beam on the base plate, the left ladder post jig is arranged on one side of the beam jig along the X direction and is used for enabling the left ladder post to be placed on the base plate along the Y direction, the bottom wall of the left ladder post is arranged on the other side of the beam jig along the Y direction and is used for enabling the right ladder post to be placed on the other side of the beam jig along the Y direction, the bottom wall of the right ladder post is arranged on the other side of the beam jig along the Y direction and is used for enabling the right ladder post to be placed on the other side of the base plate along the Y direction, the bottom wall of the two diagonal braces are arranged between the left ladder post jig and the two diagonal braces along the Y direction and the two bottom wall of the two diagonal braces respectively, and the bottom wall of the two diagonal braces are used for enabling the left ladder post to be placed on the two side of the base plate along the Y direction and the bottom wall along the Y direction.
The left column ejector rods are arranged on the base plate, the left column ejector rods and the right column ejector rods are arranged along the length direction of the left column and used for lifting the two ends and the middle of the left column upwards, the right column ejector rods are arranged along the length direction of the right column and used for lifting the two ends and the middle of the right column upwards, the left column ejector rods move through third linear drivers and are fixedly connected with the base plate, the left column ejector rods are fixedly connected with the executing parts of the third linear drivers, the left column ejector rods are propped against one surface of the left column towards the base plate, the right column ejector rods move through fourth linear drivers and are fixedly connected with the base plate, the right column ejector rods are fixedly connected with the executing parts of the fourth linear drivers, and the right column ejector rods are propped against one surface of the right column towards the base plate.
The beam jig further comprises a beam positioning piece fixedly connected to the base plate and used for enabling the beam to be placed on the base plate along the X direction, a beam pressing rod movably connected to the base plate and arranged opposite to the beam positioning piece along the Z direction and used for pushing the beam to be pressed on the beam positioning piece along the Z direction, a second rotary pressing driver fixedly connected to the base plate and connected to the beam pressing rod in a transmission mode, and the second rotary pressing driver drives the beam pressing rod to press the top wall of the beam when the beam is required to be restrained and drives the beam pressing rod to avoid the upper portion of the beam when the beam is not required to be restrained.
Further, the beam positioning piece comprises a beam supporting table and a beam positioning pin, the beam supporting table is used for supporting the bottom wall of the beam, the end part of the beam positioning pin penetrates through the beam supporting table from bottom to top and is located above the beam supporting table, and the beam positioning pin is used for being inserted into a positioning hole in the beam.
The left column jig comprises a plurality of left column middle positioning pieces fixedly connected to the base plate and arranged along the length direction of the left column, a plurality of left column middle pressing rods movably connected to the base plate and arranged opposite to each left column middle positioning piece along the X direction, a first linear driver fixedly connected to the base plate, the left column middle pressing rods are fixedly connected to an executing part of the first linear driver, the first linear driver is used for pushing the left column middle pressing rods along the X direction to enable the left column to be pressed on the left column middle positioning pieces, and one left column end positioning piece is fixedly connected to the base plate and arranged at one end of the left column and used for abutting against one end of the left column along the Y direction.
The right ladder column jig comprises a plurality of right ladder column middle positioning pieces, a plurality of right ladder column middle compression rods, right ladder column end positioning pieces and right ladder column end positioning pieces, wherein the right ladder column middle positioning pieces are fixedly connected to a base plate and are arranged along the length direction of a right ladder column, the right ladder column middle compression rods are movably connected to the base plate and are opposite to each right ladder column middle positioning piece along the X direction, the right ladder column middle compression rods are provided with shapes which are matched with concave surfaces of the right ladder column, the right ladder column middle compression rods move through second linear drivers, the second linear drivers are fixedly connected to the base plate, the right ladder column middle compression rods are fixedly connected to an executing part of the second linear drivers, and the second linear drivers are used for pushing the right ladder column middle compression rods along the X direction to enable the right ladder column to be pressed on the right ladder column middle positioning pieces, and are fixedly connected to the base plate and are arranged at one ends of the right ladder column and are used for abutting against one ends of the right ladder column along the Y direction.
The diagonal bracing jig comprises a base plate, two diagonal bracing positioning pieces, two diagonal bracing press rods, two first rotary pressing drivers and two first rotary pressing drivers, wherein the two diagonal bracing positioning pieces are fixedly connected to the base plate and respectively close to the middle positioning piece of the left ladder column farthest from the end positioning piece of the left ladder column and the middle positioning piece of the right ladder column farthest from the end positioning piece of the right ladder column, the two diagonal bracing press rods are movably connected to the base plate and are oppositely arranged with each diagonal bracing positioning piece along the Z direction and are used for pushing the diagonal bracing press rods along the Z direction to be pressed on the diagonal bracing positioning pieces, the two first rotary pressing drivers are fixedly connected to the base plate and respectively connected with the two diagonal bracing press rods in a transmission mode, and the first rotary pressing drivers drive top walls of the diagonal bracing press rods to be pressed when the diagonal bracing is required to be restrained, and drive the diagonal bracing press rods to be prevented from being arranged above the diagonal bracing.
Further, the diagonal bracing positioning piece comprises a diagonal bracing bench, diagonal bracing clamping plates and diagonal bracing ejector rods, wherein the diagonal bracing bench is fixedly connected to the base plate, the diagonal bracing bench is provided with an inclined top wall for supporting the bottom wall of the diagonal bracing, the diagonal bracing can slide downwards under the action of gravity and enable one end of the diagonal bracing to lean against the concave surfaces of the left ladder post and the right ladder post, the two diagonal bracing clamping plates are respectively connected to two sides of the diagonal bracing bench and used for restraining two side walls of the diagonal bracing, and the diagonal bracing ejector rods are connected to the relatively higher end of the two ends of the diagonal bracing bench and used for jacking the top ends of the diagonal bracing.
The ladder rail jig comprises a base plate, a plurality of ladder rail middle positioning pieces, a plurality of ladder rail middle pressure rods, a plurality of third rotary pressing drivers and a plurality of third rotary pressing drivers, wherein the ladder rail middle positioning pieces are fixedly connected to the base plate and are arranged along the Y direction, the plurality of ladder rail middle pressure rods are movably connected to the base plate and are opposite to each ladder rail middle positioning piece along the Z direction and are used for pushing the ladder rail to be pressed on the ladder rail middle positioning pieces along the Z direction, the plurality of ladder rail end positioning pieces are movably connected to the base plate and are arranged beside each ladder rail middle positioning piece along the X direction and are used for abutting against the end parts of the ladder rail to be positioned along the X direction, the plurality of third rotary pressing drivers are fixedly connected to the base plate and are connected to each ladder rail middle pressure rod in a transmission mode, and the third rotary pressing drivers drive the ladder rail middle parts to press the top walls of the middle parts of the ladder rail when the middle parts of the ladder rail are required to be restrained, and drive the ladder rail middle pressure rods to be prevented from being arranged above the ladder rail middle parts when the middle parts of the ladder rail are not required to be restrained.
The ladder rail end positioning piece comprises a ladder rail end top plate, a ladder rail end pressing plate and a hinged support, wherein the ladder rail end top plate and the ladder rail end pressing plate are integrated, the ladder rail end top plate is connected to the base plate through the hinged support, the hinged support allows the ladder rail end top plate and the ladder rail end pressing plate to be turned downwards to press down the end of the ladder rail or turned upwards to avoid the upper side of the ladder rail, the ladder rail end top plate is obliquely arranged towards one side of the ladder rail, the top edge of the ladder rail end top plate is close to the ladder rail, and the bottom edge of the ladder rail end top plate is far away from the ladder rail, so that when the ladder rail end top plate is turned downwards, the ladder rail can be pushed towards a direction away from the base plate, and when the ladder rail end pressing plate presses the top wall of the ladder rail, the ladder rail is pushed to a specified position.
Compared with the prior art, the application has the following beneficial effects:
the utility model provides a welding jig of ladder frame, this welding jig can be applied to the laser welding robot that possesses the gyration dish to can realize the automatic weld of ladder frame.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is an isometric view of a relatively long ladder casing;
FIG. 2 is an isometric view of a relatively short ladder casing;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a top view of an embodiment of the present invention for processing a relatively short ladder casing;
FIG. 5 is a perspective view of an angle of the left column jig according to the embodiment of the invention;
FIG. 6 is another perspective view of a left column jig according to an embodiment of the present invention;
FIG. 7 is a perspective view of an angle of the right column jig according to the embodiment of the invention;
FIG. 8 is a perspective view of a beam fixture according to an embodiment of the present invention;
FIG. 9 is another perspective view of a beam fixture according to an embodiment of the present invention;
Fig. 10 is a perspective view of a ladder stop jig according to an embodiment of the invention;
FIG. 11 is a perspective view of a ladder rail end positioning member in accordance with an embodiment of the present invention;
Reference numerals in the drawings are respectively as follows:
1-ladder outer frame, 11-left ladder column, 12-right ladder column, 13-ladder rail, 14-diagonal brace, 15-beam, 2-base plate, 3-beam jig, 31-beam positioning member, 32-beam bracket, 33-beam positioning pin, 34-beam press bar, 35-second rotation push-down driver, 4-left ladder column jig, 41-left ladder column end positioning member, 42-left ladder column middle positioning member, 43-left ladder column middle press bar, 44-first linear driver, 45-left ladder column push bar, 46-third linear driver, 5-right ladder column jig, 51-right ladder column end positioning member, 52-right ladder column middle positioning member, 53-right ladder column middle press bar, 54-second linear driver, 55-right ladder column push bar, 56-fourth linear driver, 6-ladder rail jig, 61-ladder rail end positioning member, 611-ladder rail end plate, 612-hinge support, 62-hinge support, 621-ladder rail middle positioning member, 621-622-diagonal brace, 7-support bracket, and 713-support bracket, and 7-diagonal brace support bracket, and support bracket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Hereinafter, the X direction is a horizontal direction, the Y direction is a horizontal direction and is perpendicular to the X direction, and the Z direction is a vertical direction.
Fig. 1 and 2 show two ladder frames 1 with different lengths respectively, each ladder frame 1 comprises a left ladder post 11, a right ladder post 12, a plurality of ladder bars 13, two diagonal braces 14 and a cross beam 15, wherein the length direction of the left ladder post 11 and the right ladder post 12 is basically parallel to the Y direction, the left ladder post 11 and the right ladder post 12 are bilaterally symmetrical along the X direction, the plurality of ladder bars 13 are welded on one surface of the left ladder post 11 and one surface of the right ladder post 12 side by side along the Y direction, the cross beam 15 is welded on the other surface of the left ladder post 11 and the right ladder post 12, the ladder bars 13 and the cross beam 15 are parallel to the X direction, the diagonal braces 14 are provided with two, one ends of the two diagonal braces 14 are welded on the same ladder bar 13, the ladder bars 13 are positioned at the lowest positions of the left ladder post 11 and the right ladder post 12, and the other ends of the two diagonal braces 14 are welded on the left ladder post 11 and the right ladder post 12 respectively.
The ladder outer frame 1 is integrally welded and formed, and an operator is required to sequentially fix the left ladder post 11, the right ladder post 12, the ladder rail 13, the diagonal braces 14 and the cross beams 15 of the ladder outer frame 1 in the jig, and then welded and formed, so that the manual welding cost is extremely high due to the longer welding seam length of the ladder outer frame 1.
The existing welding robot can automatically weld parts, only parts are needed to be fixed in corresponding jigs manually, in general, the automatic welding robot comprises two jigs, the two jigs are arranged on a rotary disc, so that the two jigs can exchange stations of each other, one station is a feeding station and a discharging station, an operator removes the welded ladder outer frame 1 at the position, then stacks the parts of the ladder outer frame 1, the other station is a welding station, and the robot welds gaps among the parts at the position.
Fig. 3 shows a welding jig capable of fixing ladder frames 1 of different lengths, the welding jig comprises a base plate 2, the base plate 2 is provided with a top wall extending along an X direction and a Y direction, and a cross beam jig 3, a left ladder post jig 4, a right ladder post jig 5, a plurality of ladder rail jigs 6 and two inclined support jigs 7 are arranged on the base plate 2.
The beam jig 3 is used for fixing one beam 15 on the substrate 2 along the X direction;
the left ladder post jig 4 is arranged on one side of the beam jig 3 along the X direction and is used for placing the left ladder post 11 on the substrate 2 along the Y direction, and the bottom wall of the left ladder post 11 is abutted against the top wall of one end of the beam 15;
the right ladder post jig 5 is arranged on the other side of the cross beam jig 3 along the X direction and is used for placing the right ladder post 12 on the substrate 2 along the Y direction, and the bottom wall of the right ladder post 12 is abutted against the top wall of the other end of the cross beam 15;
The ladder rail jig 6 is arranged between the left ladder post jig 4 and the right ladder post jig 5, and the plurality of ladder rail jigs 6 are arranged along the Y direction and are used for fixing the plurality of ladder rails 13 on the base plate 2 along the Y direction, and the bottom walls at the two ends of each ladder rail 13 respectively lean against the top walls of the left ladder post 11 and the right ladder post 12;
Two diagonal bracing jigs 7 are respectively arranged between the left ladder post jig 4 and one ladder rail jig 6, and between the right ladder post jig 5 and the same ladder rail jig 6, and are used for enabling two diagonal bracing 14 to be symmetrically fixed on the base plate 2 along the X direction, one ends of the two diagonal bracing 14 respectively lean against the inner sides of the left ladder post 11 and the right ladder post 12, and the other ends of the two diagonal bracing 14 lean against the bottom wall of the same ladder rail 13.
The beam jig 3 includes:
The beam positioning piece 31 is fixedly connected to the base plate 2 and is used for placing the beam 15 on the base plate 2 along the X direction;
the beam pressing lever 34 is movably connected to the base plate 2 and is disposed opposite to the beam positioning member 31 in the Z direction for pushing the beam 15 in the Z direction to be pressed against the beam positioning member 31.
The left column jig 4 includes:
A plurality of left pillar middle positioning members 42 fixedly connected to the base plate 2 and disposed along the length direction of the left pillar 11;
A plurality of left column middle compression bars 43 movably connected to the base plate 2 and disposed opposite to each left column middle positioning member 42 in the X direction for pushing the left column 11 in the X direction to be compressed on the left column middle positioning member 42;
The left pillar end positioning member 41 is fixedly connected to the base plate 2 and disposed at one end of the left pillar 11, and is used for abutting against one end of the left pillar 11 along the Y direction.
Right column jig 5 includes:
a plurality of right column middle positioning members 52 fixedly connected to the base plate 2 and disposed along the length direction of the right column 12;
a plurality of right column middle compression bars 53 movably connected to the base plate 2 and disposed opposite each right column middle positioning member 52 in the X direction for pushing the right column 12 in the X direction to be compressed on the right column middle positioning member 52;
The right pillar end positioning member 51 is fixedly connected to the base plate 2, and is disposed at one end of the right pillar 12, and is configured to abut against one end of the right pillar 12 along the Y direction.
Ladder rail tool 6 includes:
A plurality of ladder rail middle positioning members 62 fixedly connected to the base plate 2 and arranged along the Y direction;
a plurality of step middle pressure rods 63 movably connected to the base plate 2 and disposed opposite to each step middle positioning member 62 in the Z direction for pushing the step 13 in the Z direction to be pressed against the step middle positioning member 62;
a plurality of step end retainers 61 are movably connected to the base plate 2 and are provided sideways of each step middle retainer 62 in the X direction for abutting against the ends of the steps 13 in the X direction to be positioned.
The diagonal bracing jig 7 includes:
Two diagonal strut positioners 71 fixedly connected to the base plate 2 and respectively adjacent to the left column middle positioner 42 furthest from the left column end positioner 41 and the right column middle positioner 52 furthest from the right column end positioner 51;
Two diagonal strut bars 72 movably connected to the base plate 2 and disposed opposite each diagonal strut positioning member 71 in the Z direction for pushing the diagonal strut bars 72 in the Z direction so as to be pressed against the diagonal strut positioning members 71.
Since the welding jigs of different lengths are fixed only in different numbers of each of the positioning members and the pressing rods, in order to facilitate the presentation of the details of the present embodiment, fig. 4 shows the welding jigs capable of being fixed short, and other portions of the welding jigs are omitted, the jigs including one beam positioning member 31, one beam pressing rod 34, one left pillar end positioning member 41, one right pillar end positioning member 51, three left pillar middle positioning members 42, three left pillar middle pressing rods 43, three right pillar middle positioning members 52, three right pillar middle pressing rods 53, three ladder middle positioning members 62, three ladder middle pressing rods 63, three ladder end positioning members 61, two diagonal brace positioning members 71, and two diagonal brace pressing rods 72.
Wherein, one beam positioner 31 and one beam strut 34 are used to constrain one beam, base plate 2, one left column end positioner 41, three left column middle positioners 42 and three left column middle struts 43 are used to constrain one left column, base plate 2, one right column end positioner 51, three right column middle positioners 52 and three right column middle struts 53 are used to constrain one right column, three ladder middle positioners 62, three ladder middle struts 63 and three ladder end positioners 61 are used to constrain three ladder, two diagonal strut positioners 71 and two diagonal strut struts 72 are used to constrain two diagonal struts.
The longer ladder outer frame 1 is provided with the longer left and right stiles 11, 12 and more rungs 13, so that the welding jig only needs to correspondingly increase the number of left stile middle positioning pieces 42, left stile middle compression bars 43, right stile middle positioning pieces 52, right stile middle compression bars 53, rung middle positioning pieces 62, rung middle compression bars 63 and rung end positioning pieces 61.
In summary, the operator places the left ladder post 11, the right ladder post 12, the ladder rail 13, the diagonal braces 14 and the cross beams 15 of a specified number and specification in the jig, fixes the left ladder post, the right ladder post, the diagonal braces 14 and the cross beams, and then moves the jig from the feeding and discharging stations to the welding station, so that the ladder outer frame 1 can be automatically welded by the robot.
The specific structure of the jig of each part is described below.
Referring to fig. 5 and 6, the left column middle positioning member 42 is used to abut against the inner side of the left column, the left column middle positioning member 42 has a shape that matches the inner side of the left column 11, the left column middle compression bar 43 is used to abut against the outer side of the left column 11, the left column middle compression bar 43 moves through the first linear actuator 44, the first linear actuator 44 is fixedly connected to the base plate 2, the left column middle compression bar 43 is fixedly connected to the actuator of the first linear actuator 44, and the left column middle compression bar 43 abuts against the outer side of the left column 11.
Referring to fig. 5 and 7, the left column jig 4 and the right column jig 5 are not bilaterally symmetrical, the right column middle positioning piece 52 is used to abut against the outer side of the right column 12, the right column middle pressing rod 53 is used to abut against the inner side of the right column 12, the right column middle pressing rod 53 is moved by the second linear driver 54, the right column middle pressing rod 53 has a shape conforming to the inner side of the right column 12, the second linear driver 54 is fixedly connected to the base plate 2, the right column middle pressing rod 53 is fixedly connected to the execution part of the second linear driver 54, and the right column middle pressing rod 53 abuts against the inner side of the right column 12.
The advantage of this design is that the gap between the left and right stiles 11, 12 is insufficient to simultaneously set down the left and right stiles 4, 5, if the left and right stiles 4, 5 are placed outside the left and right stiles 11, 12, this can result in an excessive welding jig volume, so it is preferable that one of the left and right stiles 4, 5 is placed outside the left and right stiles 11, 12 and the other is placed between the left and right stiles 11, 12.
Since the left and right stiles 11 and 12 each have a certain arc, when one end and both sides of the left and right stiles are fixed, the other ends of the left and right stiles 11 and 12 cannot move, so that movement in the X and Y directions is restrained.
Wherein, the cross section of left pillar 11 and right pillar 12 are C shape, the inboard of left pillar 11 and right pillar 12 refers to both concave surfaces, the outside of left pillar 11 and right pillar 12 refers to both convex surfaces, because left pillar middle part setting element 42 outwards protrudes for inserting and coincide with the concave surface of left pillar 11, right pillar middle part depression bar 53 outwards protrudes for inserting and coincide with the concave surface of right pillar 12, therefore, the movement of left pillar 11 and right pillar 12 in Z direction is restrained.
Further, since the ladder outer frame 1 is deformed to some extent after being welded, friction between the ladder outer frame 1 and the left pillar middle positioning member 42 and the right pillar middle positioning member 52 are increased, which results in difficulty in taking out the ladder outer frame 1, and in order to facilitate an operator to take out the welded ladder outer frame 1 from the jig, referring to fig. 5, 6 and 7, the welding jig further includes left pillar push rod 45 and right pillar push rod 55 mounted on the base plate 2, a plurality of left pillar push rods 45 are arranged along the length direction of the left pillar for lifting up both ends and middle parts of the left pillar 11, and a plurality of right pillar push rods 55 are arranged along the length direction of the right pillar for lifting up both ends and middle parts of the right pillar 12.
Referring to fig. 5, the left column jack 45 is moved by a third linear driver 46, the third linear driver 46 is fixedly connected to the base plate 2, the left column jack 45 is fixedly connected to an execution portion of the third linear driver 46, and the left column jack 45 abuts against a face of the left column toward the base plate 2.
Referring to fig. 7, the right column post 55 is moved by a fourth linear actuator 56, the fourth linear actuator 56 is fixedly connected to the base plate 2, the right column post 55 is fixedly connected to an actuating portion of the fourth linear actuator 56, and the right column post 55 abuts against a face of the right column toward the base plate 2.
The first linear actuator 44, the second linear actuator 54, the third linear actuator 46, and the fourth linear actuator 56 may each employ a guided rod cylinder.
Referring to fig. 6, the diagonal brace positioning member 71 includes a diagonal brace table 711, a diagonal brace splint 712, and a diagonal brace post rod 713.
The diagonal brace 711 is fixedly connected to the base plate 2, and the diagonal brace 711 is provided with an inclined top wall for supporting the bottom wall of the diagonal brace 14, so that the diagonal brace 14 can slide down under the action of gravity, and one end of the diagonal brace 14 is abutted against the inner sides of the left and right stiles 11 and 12.
Two diagonal bracing plates 712 are respectively connected to both sides of the diagonal bracing table 711 for restraining both side walls of the diagonal bracing 14.
The diagonal bracing jacking rod 713 is connected to a relatively higher end of the two ends of the diagonal bracing table 711, and is used for jacking up the top end of the diagonal bracing 14, the diagonal bracing jacking rod 713 is preferably a bolt, and the bolt is in spiral connection with the diagonal bracing table 711, so that the inclination angle of the diagonal bracing 14 can be conveniently adjusted.
The diagonal bracing pressure bar 72 moves through the first rotary pressing driver 73, and the first rotary pressing driver 73 drives the diagonal bracing pressure bar 72 to press the top wall of the diagonal bracing when the diagonal bracing 14 is required to be restrained, and drives the diagonal bracing pressure bar 72 to avoid the upper part of the ladder outer frame 1 when the diagonal bracing 14 is not required to be restrained, so that the ladder outer frame 1 is easy to take out.
Referring to fig. 8 and 9, the beam positioner 31 includes a beam pallet 32 and a beam positioning pin 33.
The beam support 32 is used for supporting the bottom wall of the beam 15, the end part of the beam positioning pin 33 penetrates through the beam support 32 from bottom to top and is positioned above the beam support 32, and the beam positioning pin 33 is used for being inserted into a positioning hole on the beam 15.
The beam pressing rod 34 moves through the second rotary pressing driver 35, the second rotary pressing driver 35 drives the beam pressing rod 34 to press the top wall of the beam when the beam 15 needs to be restrained, and drives the beam pressing rod 34 to avoid the upper side of the ladder outer frame 1 when the beam 15 does not need to be restrained, so that the ladder outer frame 1 is easy to take out.
Referring to fig. 10, the rung middle positioning member 62 includes a rung middle pallet 621 and a rung middle clamp plate 622.
The middle support bench 621 of the ladder block is fixedly connected to the base plate 2, and the middle support bench 621 of the ladder block is used for supporting the bottom wall of the ladder block 13.
Two ladder rail middle clamping plates 622 are connected to the ladder rail middle supporting table 621, and the two ladder rail middle clamping plates 622 are used for restraining two side walls of the ladder rail 13 respectively.
The ladder rail middle pressure lever 63 moves through the third rotary pressing driver 64, and the third rotary pressing driver 64 drives the ladder rail middle pressure lever 63 to press the top wall of the middle part of the ladder rail 13 when the middle part of the ladder rail 13 is required to be restrained, and drives the ladder rail middle pressure lever 63 to avoid the upper part of the ladder outer frame 1 when the middle part of the ladder rail 13 is not required to be restrained.
The first rotary pressing driver 73, the second rotary pressing driver 35, and the third rotary pressing driver 64 described above may each employ a rotary pressing cylinder.
Referring to fig. 10 and 11, the rung end positioning member 61 includes a rung end top plate 611 and a rung end pressure plate 612, the rung end top plate 611 and the rung end pressure plate 612 being a single piece.
The step end top plate 611 is mounted to the base plate 2, and the step end top plate 611 is provided at one end of the step 13 and is used to abut against an end face of the step.
The rung end plates 612 are fixedly attached to the top edge of the rung end top plate 611 for restraining the top wall of the rung 13.
The rung end-positioning members 61 are attached to the base plate 2 by means of a hinge support 613, which hinge support 613 allows the rung end-positioning members 61 to be turned down to press down and clamp the ends of the rungs 13 or turned up to avoid above the ladder casing 1.
The top plate 611 of the end of the ladder rail is inclined towards one surface of the ladder rail 13, the top edge of the top plate 611 of the end of the ladder rail is close to the ladder rail 13, and the bottom edge of the top plate 611 of the end of the ladder rail is far away from the ladder rail 13, so that when the positioning piece 61 of the end of the ladder rail is turned downwards, the ladder rail 13 can be pushed towards a direction far away from the ladder rail, and finally when the pressing plate 612 of the end of the ladder rail presses the top wall of the ladder rail 13, the ladder rail 13 is pushed to a specified position.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and it is intended to be within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A welding jig for a ladder outer frame is characterized in that,
The device comprises a base plate (2), and a beam jig (3), a left ladder column jig (4), a right ladder column jig (5), a plurality of ladder rail jigs (6) and two diagonal bracing jigs (7) which are arranged on the base plate (2);
The substrate (2) is provided with a top wall extending along an X direction and a Y direction, wherein the X direction and the Y direction are horizontal and vertical to each other, and the Z direction is vertical to the X direction and the Y direction;
The beam jig (3) is used for fixing the beam (15) on the substrate (2);
The left ladder column jig (4) is arranged on one side of the cross beam jig (3) along the X direction and is used for placing the left ladder column (11) on the substrate (2) along the Y direction, and the bottom wall of the left ladder column (11) is abutted against the top wall of one end of the cross beam (15);
The right ladder column jig (5) is arranged on the other side of the cross beam jig (3) along the X direction and is used for placing the right ladder column (12) on the substrate (2) along the Y direction, and the bottom wall of the right ladder column (12) is abutted against the top wall of the other end of the cross beam (15);
The ladder rail jigs (6) are arranged between the left ladder post jigs (4) and the right ladder post jigs (5), a plurality of ladder rail jigs (6) are arranged along the Y direction and are used for enabling a plurality of ladder rails (13) to be fixed on the base plate (2) along the Y direction, and bottom walls at two ends of each ladder rail (13) respectively lean against top walls of the left ladder post (11) and the right ladder post (12);
Two diagonal bracing jigs (7) are respectively arranged between the left ladder post jig (4) and one ladder rail jig (6), and between the right ladder post jig (5) and the same ladder rail jig (6), and are used for enabling two diagonal bracing (14) to be symmetrically fixed on the base plate (2) along the X direction, and one ends of the two diagonal bracing (14) are respectively lapped on the inner sides of the left ladder post (11) and the right ladder post (12), and the other ends of the two diagonal bracing (14) are lapped on the bottom wall of the same ladder rail (13).
2. The welding jig for a ladder outer frame according to claim 1, wherein,
The device further comprises left column jacking rods (45) and right column jacking rods (55) which are arranged on the base plate (2), wherein a plurality of the left column jacking rods (45) are arranged along the length direction of the left column and are used for upwards lifting the two ends and the middle part of the left column (11), and a plurality of the right column jacking rods (55) are arranged along the length direction of the right column and are used for upwards lifting the two ends and the middle part of the right column (12);
The left column ejector rod (45) moves through a third linear driver (46), the third linear driver (46) is fixedly connected to the base plate (2), the left column ejector rod (45) is fixedly connected to an executing part of the third linear driver (46), and the left column ejector rod (45) abuts against one surface of the left column, which faces the base plate (2);
The right column ejector rod (55) moves through a fourth linear driver (56), the fourth linear driver (56) is fixedly connected to the base plate (2), the right column ejector rod (55) is fixedly connected to an executing part of the fourth linear driver (56), and the right column ejector rod (55) abuts against one face of the right column towards the base plate (2).
3. The welding jig for a ladder outer frame according to claim 1, wherein,
The beam jig (3) comprises:
The beam positioning piece (31) is fixedly connected to the base plate (2) and is used for placing the beam (15) on the base plate (2) along the X direction;
a beam pressing rod (34) movably connected to the base plate (2) and arranged opposite to the beam positioning member (31) along the Z direction, for pushing the beam (15) along the Z direction to be pressed on the beam positioning member (31);
The second rotary pressing driver (35) is fixedly connected to the base plate (2) and is in transmission connection with the beam pressing rod (34), the second rotary pressing driver (35) drives the beam pressing rod (34) to press the top wall of the beam when the beam (15) needs to be restrained, and drives the beam pressing rod (34) to avoid the upper portion of the beam (15) when the beam (15) does not need to be restrained.
4. The welding jig for a ladder outer frame according to claim 3, wherein,
The beam positioning piece (31) comprises a beam supporting table (32) and a beam positioning pin (33), the beam supporting table (32) is used for supporting the bottom wall of the beam (15), the end part of the beam positioning pin (33) penetrates through the beam supporting table (32) from bottom to top and is located above the beam supporting table (32), and the beam positioning pin (33) is used for being inserted into a positioning hole on the beam (15).
5. The welding jig for a ladder outer frame according to claim 1, wherein,
Left side ladder post tool (4) include:
A plurality of left pillar middle positioning pieces (42) fixedly connected to the base plate (2) and arranged along the length direction of the left pillar (11), wherein the left pillar middle positioning pieces (42) are provided with a shape which is matched with the concave surface of the left pillar (11);
A plurality of left column middle pressure rods (43) movably connected to the base plate (2) and arranged opposite to each left column middle positioning member (42) along the X direction, wherein the left column middle pressure rods (43) move through first linear drivers (44), the first linear drivers (44) are fixedly connected to the base plate (2), the left column middle pressure rods (43) are fixedly connected to an executing part of the first linear drivers (44), and the first linear drivers (44) are used for pushing the left column middle pressure rods (43) along the X direction so that the left column (11) is pressed on the left column middle positioning members (42);
And the left ladder column end positioning piece (41) is fixedly connected to the base plate (2) and is arranged at one end of the left ladder column (11) and used for abutting against one end of the left ladder column (11) along the Y direction.
6. The welding jig for a ladder outer frame as set forth in claim 5, wherein,
Right ladder post tool (5) include:
a plurality of right ladder column middle positioning pieces (52) fixedly connected to the base plate (2) and arranged along the length direction of the right ladder column (12);
The right ladder column middle pressure rods (53) are movably connected to the base plate (2) and are arranged opposite to each right ladder column middle positioning piece (52) along the X direction, the right ladder column middle pressure rods (53) are provided with concave shapes which are matched with the right ladder columns (12), the right ladder column middle pressure rods (53) move through second linear drivers (54), the second linear drivers (54) are fixedly connected to the base plate (2), the right ladder column middle pressure rods (53) are fixedly connected to the execution parts of the second linear drivers (54), and the second linear drivers (54) are used for pushing the right ladder column middle pressure rods (53) along the X direction so that the right ladder columns (12) are pressed on the right ladder column middle positioning pieces (52);
The right ladder column end positioning piece (51) is fixedly connected to the base plate (2) and is arranged at one end of the right ladder column (12) and used for abutting against one end of the right ladder column (12) along the Y direction.
7. The welding jig for a ladder outer frame as set forth in claim 6, wherein,
The diagonal bracing jig (7) comprises:
Two diagonal bracing positioning pieces (71) fixedly connected to the base plate (2) and respectively close to the left pillar middle positioning piece (42) farthest from the left pillar end positioning piece (41) and the right pillar middle positioning piece (52) farthest from the right pillar end positioning piece (51);
two diagonal bracing rods (72) movably connected to the base plate (2) and disposed opposite to each diagonal bracing positioning member (71) in the Z direction, for pushing the diagonal bracing rods (72) in the Z direction to be pressed against the diagonal bracing positioning members (71);
The two first rotary pushing drivers (73) are fixedly connected to the base plate (2) and respectively connected to the two diagonal bracing compression bars (72) in a transmission mode, the first rotary pushing drivers (73) drive the diagonal bracing compression bars (72) to press the top wall of the diagonal bracing when the diagonal bracing (14) needs to be restrained, and drive the diagonal bracing compression bars (72) to avoid the upper portion of the diagonal bracing (14) when the diagonal bracing (14) does not need to be restrained.
8. The welding jig for a ladder outer frame as set forth in claim 7, wherein,
The diagonal bracing positioning piece (71) comprises a diagonal bracing table (711), a diagonal bracing clamping plate (712) and a diagonal bracing ejector rod (713), the diagonal bracing table (711) is fixedly connected to the base plate (2), the diagonal bracing table (711) is provided with an inclined top wall for supporting the bottom wall of the diagonal bracing (14), so that the diagonal bracing (14) can slide downwards under the action of gravity, and one end of the diagonal bracing (14) is abutted against the concave surfaces of the left ladder column (11) and the right ladder column (12);
Two diagonal bracing clamping plates (712) are respectively connected to two sides of the diagonal bracing table (711) and are used for restraining two side walls of the diagonal bracing (14);
The diagonal bracing top rod (713) is connected to a relatively higher one of the two ends of the diagonal bracing table (711) and is used for jacking up the top end of the diagonal bracing (14).
9. The welding jig for a ladder outer frame according to claim 1, wherein,
The ladder rail jig (6) comprises:
a plurality of ladder rail middle positioning pieces (62) fixedly connected to the base plate (2) and arranged along the Y direction;
A plurality of ladder rail middle pressure rods (63) movably connected to the base plate (2) and arranged opposite to each ladder rail middle positioning member (62) along the Z direction, and used for pushing the ladder rail (13) along the Z direction to be pressed on the ladder rail middle positioning member (62);
A plurality of step end retainers (61) movably connected to the base plate (2) and provided laterally of each step middle retainer (62) in the X direction for abutting against the ends of the steps (13) in the X direction to be positioned;
The third rotary pushing drivers (64) are fixedly connected to the base plate (2) and are in transmission connection with each ladder middle pressing rod (63), the third rotary pushing drivers (64) drive the ladder middle pressing rods (63) to press the top wall of the middle of the ladder (13) when the middle of the ladder (13) needs to be restrained, and drive the ladder middle pressing rods (63) to avoid the upper part of the ladder (13) when the middle of the ladder (13) does not need to be restrained.
10. The welding jig for a ladder outer frame as set forth in claim 9, wherein,
The ladder rail end positioning piece (61) comprises a ladder rail end top plate (611), a ladder rail end pressing plate (612) and a hinged support (613);
The ladder rail end top plate (611) and the ladder rail end pressing plate (612) are integrated, the ladder rail end top plate (611) is connected to the base plate (2) through the hinged support (613), the hinged support (613) allows the ladder rail end top plate (611) and the ladder rail end pressing plate (612) to be turned downwards to press down the end of the ladder rail (13) or to be turned upwards to avoid the upper side of the ladder rail (13), the ladder rail end top plate (611) is obliquely arranged towards one side of the ladder rail (13), the top edge of the ladder rail end top plate (611) is close to the ladder rail (13), and the bottom edge of the ladder rail end top plate (611) is far away from the ladder rail (13), so that when the ladder rail end top plate (611) is turned downwards, the ladder rail (13) can be pushed towards a direction far away from the top wall of the ladder rail (13), and when the ladder rail end pressing plate (612) is pressed against the top wall of the ladder rail (13), the ladder rail (13) is pushed to a specified position.
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