CN113146130B - Multifunctional positioning tool for welding of scissor arm - Google Patents
Multifunctional positioning tool for welding of scissor arm Download PDFInfo
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- CN113146130B CN113146130B CN202110544778.9A CN202110544778A CN113146130B CN 113146130 B CN113146130 B CN 113146130B CN 202110544778 A CN202110544778 A CN 202110544778A CN 113146130 B CN113146130 B CN 113146130B
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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Abstract
The invention relates to a multifunctional positioning tool for welding a scissor arm, which comprises a base, two rotary positioning mechanisms I, two rotary positioning mechanisms II, three groups of shaft sleeve positioning mechanisms, two supporting mechanisms and a group of oppositely arranged positioning groove mechanisms, wherein each rotary positioning mechanism I comprises an upper positioning rod and a positioning block correspondingly arranged below the upper positioning rod; the rotary positioning mechanism II comprises a lower positioning rod and a pressing block correspondingly arranged above the lower positioning rod, the two shaft sleeve positioning mechanisms in the same group are arranged oppositely, the positioning groove mechanism can move transversely synchronously with the adjacent shaft sleeve positioning mechanisms, the rotary positioning mechanism I and the rotary positioning mechanism II are arranged oppositely, and the upper positioning rod and the lower positioning rod can move oppositely. The invention has simple integral structure, can realize the primary welding and the secondary welding of the scissor arm respectively, ensures the welding precision and the welding quality and improves the welding efficiency.
Description
Technical Field
The invention belongs to the technical field of welding and positioning of scissor arms for elevators, and particularly relates to a multifunctional positioning tool for welding the scissor arms.
Background
Used scissors arm of lift includes the mobile jib of two parallels to and install two V templates in the inboard of mobile jib, and its mobile jib and V template all weld the axle sleeve, and wherein two V templates are laminating the medial surface of mobile jib respectively and are placed, and its marginal position with the mobile jib contact needs to adopt the mode welding of full weld, with welding strength who guarantees both. When in welding, the shaft sleeves on the main rod and the V-shaped plate need to be welded in a positioning way, and the V-shaped plate and the main plate need to be welded in a positioning way.
Traditional location frock all is the welding that realizes whole product through the location to the axle sleeve, but because the welding seam is longer between mobile jib and the V template, then can produce certain deformation on its length direction, if still adopt the structure to the axle sleeve location to this welding process location, if axle sleeve location structure's rigidity, then this welding process can directly cause the deformation damage of location frock. If adjust all axle sleeve location structure's position according to the deformation condition, not only can increase the complexity of whole location frock like this to still need reset positioning mechanism when carrying out follow-up axle sleeve location again, remove repeatedly, very easily influence positioning accuracy and welding quality, it is very inconvenient to use, and still can directly influence welding efficiency.
Disclosure of Invention
The invention aims to provide a multifunctional positioning tool for welding a scissor arm, which aims to solve the problem of poor welding positioning precision of the scissor arm.
The invention discloses a multifunctional positioning tool for welding a scissor arm, which is realized by the following steps:
multifunctional positioning tool for welding of scissor arms comprises
A base;
the rotary positioning mechanisms I are longitudinally arranged at one end of the base in parallel and can be reversed or relatively rotated, and each rotary positioning mechanism I comprises an upper positioning rod and a positioning block correspondingly arranged below the upper positioning rod;
the two rotary positioning mechanisms II are longitudinally arranged at the other end of the base in parallel and can rotate back to back or oppositely, each rotary positioning mechanism II comprises a lower positioning rod and a pressing block correspondingly arranged above the lower positioning rod;
three groups of shaft sleeve positioning mechanisms transversely arranged on the base in parallel, wherein two shaft sleeve positioning mechanisms in the same group are arranged oppositely;
two supporting mechanisms respectively positioned between two adjacent groups of shaft sleeve positioning mechanisms;
the positioning groove mechanisms are positioned at the end of the rotary positioning mechanism II and are oppositely arranged, and the positioning groove mechanisms can synchronously and transversely move with the shaft sleeve positioning mechanisms adjacent to the positioning groove mechanisms;
the rotary positioning mechanism I and the rotary positioning mechanism II are oppositely arranged, and the upper positioning rod and the lower positioning rod can move oppositely.
Further, the base is arranged on two oppositely arranged welding positioner;
the both ends of base are provided with the mounting panel, the outside of mounting panel is provided with the installation piece, the installation piece is fixed in the mount pad of positioner.
Furthermore, the rotary positioning mechanism I comprises a rotating shaft I vertically installed on the base and a rotating frame I in rotating fit with the rotating shaft I;
a telescopic cylinder I is mounted on the rotating frame I, and the upper positioning rod is connected with a piston rod of the telescopic cylinder I;
a pneumatic rapid clamp I is arranged below the telescopic cylinder I, the positioning block is arranged on a swing arm of the pneumatic rapid clamp I, and the pneumatic rapid clamp I can drive the positioning block to swing towards the direction of the upper positioning rod;
an arc-shaped positioning notch I is formed in the lower side of the end portion of the upper positioning rod.
Further, the rotary positioning mechanism II comprises a rotating shaft II vertically arranged on the base and a rotating frame II in rotating fit with the rotating shaft II;
a telescopic cylinder II is mounted on the rotating frame II, and the lower positioning rod is connected with a piston rod of the telescopic cylinder II;
a pressing cylinder is arranged above the telescopic cylinder II, the pressing block is connected with a piston rod of the pressing cylinder, and the pressing cylinder can drive the pressing block to move downwards;
and an arc-shaped positioning notch II is arranged on the upper side of the end part of the lower positioning rod.
Furthermore, a locking component is arranged between the two rotary positioning mechanisms I and between the two rotary positioning mechanisms II respectively, and a clamping component is arranged on the outer sides of the rotary positioning mechanisms I and the rotary positioning mechanisms II respectively.
Furthermore, the shaft sleeve positioning mechanism comprises a pneumatic tensioning pin, a pushing cylinder is arranged below the pneumatic tensioning pin, and the pushing cylinder can drive the two pneumatic tensioning pins in the same group to move in the opposite direction or in the opposite direction.
Furthermore, a group of shaft sleeve positioning mechanisms close to the rotary positioning mechanism I can move transversely on the base;
the positioning groove mechanism and the shaft sleeve positioning mechanism adjacent to the positioning groove mechanism are arranged on the same transverse moving plate I, and the transverse moving plate I can transversely move on the base.
Furthermore, the supporting mechanism comprises a supporting frame and supporting seats which are arranged on the supporting frame and are arranged oppositely, and a baffle is arranged on the outer side above each supporting seat;
and the supporting seat is provided with a roller.
Furthermore, two front mandrel seats are mounted at two ends of one side, facing the rotary positioning mechanism I, of the support frame close to the rotary positioning mechanism I, and longitudinally-placed positioning mandrels are detachably mounted in the two front mandrel seats;
a rear mandrel base is arranged in the middle of one side, facing the rotary positioning mechanism II, of the support frame close to the rotary positioning mechanism I, and the rear mandrel base can be opened or closed;
and a transverse moving plate II is arranged at the bottom of the support frame close to the rotary positioning mechanism I and can transversely slide on the base.
Furthermore, the positioning groove mechanism comprises a positioning seat with a V-shaped groove opening and a pneumatic quick clamp II arranged on the outer side of the positioning seat, a pressing block is installed on a swing arm of the pneumatic quick clamp II, and the pressing block is located above the positioning seat and can swing towards the direction of the positioning seat.
After the technical scheme is adopted, the invention has the beneficial effects that:
(1) The invention can realize one-time welding of the scissor arm, namely the positioning welding of various shaft sleeves, by arranging the shaft sleeve positioning mechanism, the supporting mechanism and the positioning groove mechanism, thereby ensuring the positioning precision and improving the welding quality;
(2) According to the invention, through the arrangement of the rotary positioning mechanism I and the rotary positioning mechanism II, the secondary welding of the scissor arm, namely the positioning welding of the V-shaped plate and the main rod, can be realized, the influence on the positioning tool caused by the welding deformation of the scissor arm is avoided, the structure of the whole positioning tool is simplified, the positioning precision and the welding quality are further ensured, and the welding efficiency is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a structural diagram of a multifunctional positioning tool for welding a scissor arm according to a preferred embodiment of the invention;
fig. 2 is a structural diagram of a rotary positioning mechanism i of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 3 is a structural diagram of a rotary positioning mechanism ii of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 4 is a structural diagram of one shaft sleeve positioning mechanism of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 5 is a structural diagram of one of bushing positioning mechanisms (without a housing) of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 6 is a structural diagram of one of the supporting mechanisms of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 7 is a structural diagram of another supporting mechanism of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
fig. 8 is a structural view of a positioning groove mechanism of the multifunctional positioning tool for welding the scissor arm and a shaft sleeve positioning mechanism adjacent to the positioning groove mechanism in the preferred embodiment of the invention;
fig. 9 is a positioning state diagram of the multifunctional positioning tool for welding the scissor arm according to the preferred embodiment of the invention;
in the figure: the device comprises a base 1, a mounting plate 11, a mounting block 12, a rotary positioning mechanism I2, an upper positioning rod 21, a positioning block 22, a rotating shaft I23, a rotating frame I24, a telescopic cylinder I25, a pneumatic quick clamp I26, an arc positioning gap I27, a rotary positioning mechanism II 3, a lower positioning rod 31, a pressing block 32, a rotating shaft II 33, a rotating frame II 34, a telescopic cylinder II 35, a pressing cylinder 36, an arc positioning gap II 37, a support 38, a shaft sleeve positioning mechanism 4, a pneumatic tensioning pin 41, a pushing cylinder 42, a pin body 43, a tensioning block 44, a tensioning cylinder 45, a tensioning pin support frame 46, an outer cover 47, a connecting plate 48, a guide rod 49, a guide rail I410, a guide rail II 411, a vertical plate 412, a transverse moving cylinder 413, a stop block 414I and an upper cover 415, the welding positioner comprises a supporting mechanism 5, a supporting frame 51, a supporting seat 52, a baffle plate 53, a roller 54, a front mandrel seat 55, a positioning mandrel 56, a locking bolt 57, a sleeve 58, a pressing sleeve 59, a rear mandrel seat 510, a quick lock I511, a lock hook I512, a transverse moving plate II 513, a guide rail IV 514, a positioning hole II 515, a positioning pin II 516, a cover 517, a stop III 518, a positioning groove mechanism 6, a transverse moving plate I61, a guide rail III 62, a positioning pin I63, a positioning hole I64, a stop II 65, a positioning seat 66, a pneumatic quick clamp II 67, a pressing block 68, a positioning support 69, a limiting plate 610, a welding positioner 7, a main rod 81, a V-shaped plate 82, a long shaft sleeve I83, a long shaft sleeve II 84, a short shaft sleeve 85, a quick lock 91, a lock hook 92, a buckle 93, a clamping groove 94 and a rod 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
One of the scissor arms suitable for the positioning tool disclosed in this embodiment includes two main rods 81 arranged in parallel, and a V-shaped plate 82 located inside each main rod 81 and having a downward opening, wherein two ends and the middle of the main rods 81 are respectively provided with a long shaft sleeve penetrating through the two main rods 81, and the turning point of the V-shaped plate 82 is provided with an independent short shaft sleeve 85.
The long shaft sleeve I83 positioned at one end of the main rod 81 is positioned at the lower middle position of the main rod 81, and the long shaft sleeve II 84 positioned at the other end of the main rod 81 is positioned at the upper middle position of the main rod 81.
As shown in fig. 1-9, a multifunctional positioning tool for welding a scissor arm comprises a base 1, two rotary positioning mechanisms i 2 which are longitudinally arranged at one end of the base 1 in parallel and can be rotated back to back or oppositely, two rotary positioning mechanisms ii 3 which are longitudinally arranged at the other end of the base 1 in parallel and can be rotated back to back or oppositely, three groups of shaft sleeve positioning mechanisms 4 which are transversely arranged on the base 1 in parallel, two supporting mechanisms 5 which are respectively arranged between two adjacent groups of shaft sleeve positioning mechanisms 4, and a group of oppositely arranged positioning groove mechanisms 6 which are arranged at the end where the rotary positioning mechanisms ii 3 are arranged, wherein the rotary positioning mechanisms i 2 comprise upper positioning rods 21 and positioning blocks 22 which are correspondingly arranged below the upper positioning rods 21; the rotary positioning mechanism II 3 comprises a lower positioning rod 31 and a pressing block 32 correspondingly arranged above the lower positioning rod 31, the two shaft sleeve positioning mechanisms 4 in the same group are arranged oppositely, the positioning groove mechanism 6 can synchronously and transversely move with the shaft sleeve positioning mechanism 4 adjacent to the positioning groove mechanism 6, the rotary positioning mechanism I2 and the rotary positioning mechanism II 3 are arranged oppositely, and the upper positioning rod 21 and the lower positioning rod 31 can oppositely move.
In order to drive the base 1 and each positioning mechanism to rotate, so as to realize the all-dimensional welding of the scissor arms, the base 1 is arranged on two welding position changing machines 7 which are oppositely arranged.
In order to mount the base 1 on the welding positioner 7, mounting plates 11 are arranged at two ends of the base 1, mounting blocks 12 are arranged outside the mounting plates 11, and the mounting blocks 12 are fixed in a mounting seat of the welding positioner 7.
During secondary welding, the rotary positioning mechanism I2 positions the end part of the scissor arm where the long shaft sleeve I83 is located, and the rotary positioning mechanism II 3 positions the end part of the scissor arm where the long shaft sleeve II 84 is located.
The base 1 is of a structure shaped like a Chinese character 'mu', the rotary positioning mechanism I2 and the rotary positioning mechanism II 3 are respectively arranged on the frames at the two ends of the base, the shaft sleeve positioning mechanism 4 and the positioning groove mechanism 6 are arranged on the frames at the two sides of the base, and the supporting mechanism 5 is arranged on the two inner beams in the middle of the base.
Because the long shaft sleeve I83 and the long shaft sleeve II 84 are located at different horizontal heights, in the rotary positioning mechanism I2, the upper positioning rod 21 penetrates into the main rod 81 and is matched above the long shaft sleeve I83, and the positioning block 22 is positioned at the bottom of the main rod 81. In the rotary positioning mechanism ii 3, the lower positioning rod 31 penetrates into the main rod 81 and is matched below the long shaft sleeve ii 84, and the pressing block 32 is pressed above the main rod 81, so that the two ends of the scissor arm after one-time welding are positioned.
When carrying out the fixed-position welding to long axle sleeve and short axle sleeve 85 and once welding promptly, rotary positioning mechanism I2 need be in and dodge the state, avoids producing the influence to rather than adjacent axle sleeve positioning mechanism 4, consequently, in order to realize rotary positioning mechanism I2's rotation, rotary positioning mechanism I2 includes vertical pivot I23 of installing on base 1 to and the swivel mount I24 of normal running fit on pivot I23.
The two rotating frames I24 can rotate around the rotating shafts I23 which correspond to each other in an opposite mode, so that the upper positioning rod 21 and the positioning block 22 are arranged outwards, and the influence on one-time welding is avoided.
In order to realize the positioning by penetrating the upper positioning rod 21 into the main rod 81, a telescopic cylinder I25 is installed on the rotating frame I24, and the upper positioning rod 21 is connected with a piston rod of the telescopic cylinder I25.
In order to fix a position major axis cover I83 place end mobile jib 81 bottom, pneumatic quick anchor clamps I26 are installed to the below of telescopic cylinder I25, and locating piece 22 is installed on the swing arm of pneumatic quick anchor clamps I26, and pneumatic quick anchor clamps I26 can drive locating piece 22 towards the direction swing of upper positioning rod 21.
Specifically, pneumatic quick anchor clamps I26 is transversely placed, and through driving locating piece 22 towards the swing of upper positioning rod 21 to cooperate from top to bottom with upper positioning rod 21, realize the location to scissors arm tip.
In order to realize accurate matching with the long shaft sleeve I83 and ensure positioning accuracy, an arc-shaped positioning notch I27 is arranged on the lower side of the end part of the upper positioning rod 21.
The same as the rotary positioning mechanism I2, in order to realize the rotation of the rotary positioning mechanism II 3, the rotary positioning mechanism II 3 comprises a rotating shaft II 33 vertically installed on the base 1 and a rotating frame II 34 in rotating fit with the rotating shaft II 33.
In order to enable the lower positioning rod 31 to extend into the main rod 81 to achieve positioning, a telescopic cylinder II 35 is mounted on the rotating frame II 34, and the lower positioning rod 31 is connected with a piston rod of the telescopic cylinder II 35.
In order to realize the positioning of the top of the main rod 81 at the end where the long shaft sleeve II 84 is located, the pressing cylinder 36 is installed above the telescopic cylinder II 35, the pressing block 32 is connected with a piston rod of the pressing cylinder 36, and the pressing cylinder 36 can drive the pressing block 32 to move downwards.
Specifically, a piston rod of a pressing cylinder 36 of a support 38 of the Z shape above the telescopic cylinder ii 35 is fixed on the support 38 downward, and the pressing block 32 is driven to move downward by extending the piston rod of the pressing cylinder 36, so that the end of the scissor arm is positioned by combining with a lower positioning rod 31.
In order to realize accurate matching with the long shaft sleeve II 84 and guarantee positioning accuracy, an arc-shaped positioning notch II 37 is arranged on the upper side of the end part of the lower positioning rod 31.
When the rotational positioning mechanism i 2 and the rotational positioning mechanism ii 3 are in the positioned state, the upper positioning rod 21 and the lower positioning rod 31 are disposed in opposition to each other.
In order to fix the positions of the rotary positioning mechanisms I2 and the rotary positioning mechanisms II 3 in a positioning state and an avoiding state, locking assemblies are respectively arranged between the two rotary positioning mechanisms I2 and between the two rotary positioning mechanisms II 3, and clamping assemblies are respectively arranged on the outer sides of the rotary positioning mechanisms I2 and the rotary positioning mechanisms II 3.
Specifically, the locking component is a quick lock 91 installed inside the first rotating frame 24 and the second rotating frame 34, a lock hook 92 matched with the quick lock 91 is installed on the inner wall of the installation plate 11, and when the two rotating positioning mechanisms are in a positioning state, the quick lock 91 is locked on the lock hook 92 to fix the positions of the two rotating positioning mechanisms.
The clamping assembly comprises a buckle 93 arranged on the outer side surfaces of the first rotating frame 24 and the second rotating frame 34, clamping grooves 94 matched with the buckle 93 are formed in the two sides of the mounting plate 11, and when the two rotating positioning mechanisms are in an avoiding state, the buckle 93 is clamped in the clamping grooves 94, so that the positions of the clamping assemblies are fixed.
The shaft sleeve positioning mechanism 4 is used for one-time welding, namely positioning during welding of three long shaft sleeves, the shaft sleeve positioning mechanism 4 comprises a pneumatic tensioning pin 41, a pushing cylinder 42 is arranged below the pneumatic tensioning pin 41, and the pushing cylinder 42 can drive the two pneumatic tensioning pins 41 in the same group to move in the opposite direction or in the opposite direction.
In order to position the short shaft sleeve 85, the pneumatic tensioning pin 41 includes a pin body 43, a tensioning block 44 movably disposed in the pin body 43, and a tensioning cylinder 45 connected to the tensioning block 44, and the tensioning cylinder 45 can drive the tensioning block 44 to move axially on the pin body 43.
After the pin body 43 penetrates into the long shaft sleeve, the piston rod of the tensioning cylinder 45 extends out, and the tensioning block 44 is moved inwards to penetrate out of the tensioning hole in the surface of the pin body 43 and abut against the inner wall of the shaft sleeve, so that the long shaft sleeve is fixed.
A connecting plate 48 is arranged between the piston rods of the tensioning cylinder 45 and the pushing cylinder 42, the pushing cylinder 42 drives the whole pneumatic tensioning pin 41 to move through the connecting plate 49, and a guide rod 49 is arranged below the pushing cylinder 42.
The shaft sleeve positioning mechanism 4 further comprises a tensioning pin support frame 46, the pneumatic tensioning pin 41 is mounted on the tensioning pin support frame 46, the pushing cylinder 42 is mounted in the tensioning pin support frame 46, and the pushing cylinder 42 can drive the pneumatic tensioning pin 41 to move in the axial direction of the pneumatic tensioning pin.
Preferably, the outer side of the tension pin supporting frame 46 is provided with a cover 47, which can enhance the aesthetic property and protect the push cylinder 42 well.
In order to be suitable for the positioning welding of scissor arms with different specifications, a group of shaft sleeve positioning mechanisms 4 close to the rotary positioning mechanism I2 can move on the base 1 transversely.
The bottom of a tension pin support frame 46 of the shaft sleeve positioning mechanism 4 is provided with a pair of transversely arranged guide rails I410, the outer side wall of the base 1 is provided with a transverse guide rail II 411, the tension pin support frame 46 is in sliding fit with the guide rails I410, the outer side of the tension pin support frame 46 is provided with a vertical plate 412, the vertical plate 412 is in sliding fit with the guide rail II 411, one side of the tension pin support frame 46 is provided with a traversing cylinder 413 fixed on the base 1, and a piston rod of the traversing cylinder 413 is adjacent to the tension pin support frame 46, so that the shaft sleeve positioning mechanism 4 is driven to traverse.
One end of the guide rail II 411 is provided with a stop I414, and the stop I414 can limit the moving position of the shaft sleeve positioning mechanism 4.
Preferably, an upper cover 415 is disposed on the traverse cylinder 413 to protect the traverse cylinder 413.
In order to adapt to the positioning welding of scissor arms with other specifications, the positioning groove mechanism 6 and the shaft sleeve positioning mechanism 4 adjacent to the positioning groove mechanism are arranged on the same transverse moving plate I61, and the transverse moving plate I61 can transversely move on the base 1.
A pair of transverse guide rails III 62 are arranged on the base 1 below the transverse moving plate I61, and the transverse moving plate I61 is in sliding fit with the guide rails III 62.
A pair of vertical positioning pins I63 is arranged between the two guide rails III 62, a positioning cylinder I (not shown in the figure) located in the base 1 is arranged below the positioning pins I63, the positioning cylinder I can drive the positioning pins I63 to stretch up and down, positioning holes I64 matched with the positioning pins I63 are formed in the transverse moving plate I61, and the two positions of the transverse moving plate I61 are fixed through the two positioning pins I63.
Preferably, stoppers II 65 are provided at both ends of the guide rail III 62, respectively, to limit the lateral movement position of the lateral movement plate I61.
The supporting mechanism 5 is used for supporting the main rod 81 and ensuring the levelness and the parallelism of the main rod 81 during welding, the supporting mechanism 5 comprises a supporting frame 51 and supporting seats 52 which are arranged on the supporting frame 51 and are opposite to each other, and a baffle 53 is arranged on the outer side above each supporting seat 52.
The support seat 52 and the baffle 53 form an L-shaped positioning structure, and the main rod 81 is placed on the L-shaped positioning structure, so as to realize accurate positioning of the two.
In order to facilitate the movement of the main lever 81 in the longitudinal direction thereof, the roller 54 is installed on the support base 52.
In order to perform positioning welding on the short shaft sleeve 85 on the V-shaped plate 82, two front mandrel bases 55 are mounted at two ends of the support frame 51 close to the rotary positioning mechanism i 2, which face the rotary positioning mechanism i 2, and a positioning mandrel 56 which is longitudinally placed is detachably mounted in the two front mandrel bases 55.
The side of preceding dabber seat 55 towards rotary positioning mechanism I2 is provided with locking bolt 57, be provided with the sleeve 58 of cover on positioning mandrel 56 between two stub axle sleeves 85, when fixing a position stub axle 85, positioning mandrel 56 passes a stub axle sleeve 85 in proper order, sleeve 58 and another stub axle sleeve 85, then sheathes 59 in from its both ends, make the outside of pressing sleeve 59 laminating V-arrangement board 82, thereby combine sleeve 58 to fix stub axle 85's position, and positioning mandrel 56's both ends penetrate respectively in two preceding dabber seats 55, and utilize locking bolt 57 to its rigidity, thereby realize short stub axle 85's accurate location.
In order to adapt to the positioning welding of scissor arms with other specifications, a rear mandrel base 510 is installed in the middle of one side, facing the rotary positioning mechanism II 3, of the supporting frame 51 close to the rotary positioning mechanism I2, and the rear mandrel base 510 can be opened or closed.
The rear mandrel seat 510 comprises a fixed portion and a movable portion, a hole-shaped structure is formed between the fixed portion and the movable portion, the positioning mandrel 56 can conveniently penetrate through the hole-shaped structure, the fixed portion is provided with a quick lock catch I511, the movable portion is provided with a lock hook I512, the bottoms of the fixed portion and the movable portion are hinged, the quick lock catch I511 can be locked with the lock hook I512, and therefore the positioning mandrel 56 and other structures are fixed between the fixed portion and the movable portion.
In order to adapt to the positioning welding of scissor arms of other specifications, a transverse moving plate II 513 is installed at the bottom of the supporting frame 51 close to the rotary positioning mechanism I2, and the transverse moving plate II 513 can transversely slide on the base 1.
A guide rail IV 514 which is transversely arranged is arranged on the base 1 below the transverse moving plate II 513, the transverse moving plate II 513 is in sliding fit with the guide rail IV 514, a positioning hole II 515 is formed in the transverse moving plate II 513, a pair of positioning pins II 516 is arranged on the outer side of the guide rail IV 514, a positioning air cylinder II (not shown) which is located in the base 1 is arranged below the positioning pins II 516, the positioning air cylinder II can drive the positioning pins II 516 to ascend and descend to realize the fit with the positioning holes II 515, and therefore the position of the transverse moving plate II 513 is fixed, namely the position of the supporting mechanism 5 is fixed.
Preferably, in order to protect the guide rail IV 514 and the positioning pin II 516, two ends of the traverse plate II 513 are respectively provided with a cover 517 covering the guide rail IV 514.
Two ends of a guide rail IV 514 at one end of the traverse plate II 513 are provided with stop blocks III 518 for limiting the traverse position of the traverse plate II 513.
The tip of some scissors arms can install the extension axle sleeve that the tip stretches out the mobile jib 81 outside, and for the convenience to the location of this type of scissors arm, constant head tank mechanism 6 is including the positioning seat 66 that has V type notch to and set up II 67 pneumatic quick clamp in the positioning seat 66 outside, installs compact heap 68 on II 67 pneumatic quick clamp's the swing arm, and compact heap 68 is located the top of positioning seat 66, and can swing towards the direction of positioning seat 66.
The constant head tank is fixed on locating support 69, and II 67 vertical places of pneumatic quick anchor clamps are fixed in the outside of locating support 69.
Preferably, in order to limit the two ends of the long shaft sleeve and avoid axial play, a limiting plate 610 is installed outside the positioning seat 66.
The pneumatic rapid clamp II 67 drives the pressing block 68 to move downwards, so that the lengthened shaft sleeve is fixed in the positioning seat 66, and the movement of the lengthened shaft sleeve in the welding process is guaranteed.
When the scissor arm is subjected to positioning welding, the scissor arm is firstly welded once, the rotary positioning mechanism I2 and the rotary positioning mechanism II 3 are in an avoidance state at the moment, and the upper positioning rod 21 and the lower positioning rod 31 are arranged outwards. The main rod 81, the long shaft sleeve and the V-shaped plate 82 are assembled and then placed on the supporting mechanism 5, the long shaft sleeve is positioned by the pneumatic tensioning pin 41, the short shaft sleeve 85 is positioned by the positioning mandrel 56, and the telescopic support rods 10 are required to be placed between the two V-shaped plates 82 and between the two main rods 81, so that the parallelism between every two main rods is guaranteed. At this time, the major axis sleeve is welded to the main rod 81, the short axis sleeve 85 is welded to the V-shaped plate 82, and both ends of the V-shaped plate 82 are welded to the major axis sleeve corresponding thereto.
Accomplish a welding back, pneumatic tight round pin 41 that rises resets, dismantle positioning core axle 56, then utilize rotational positioning mechanism I2 and rotational positioning mechanism II 3 to fix a position the both ends of a postweld scissor arm respectively, can weld V template 82 and mobile jib 81 contact edge, both guaranteed positioning accuracy and welding quality, improved welding efficiency again.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A method for welding a scissor arm is characterized by comprising
A base (1);
the device comprises two rotary positioning mechanisms I (2) which are longitudinally arranged at one end of the base (1) in parallel and can be reversed or relatively rotated, wherein each rotary positioning mechanism I (2) comprises an upper positioning rod (21) and a positioning block (22) which is correspondingly arranged below the upper positioning rod (21);
the two rotary positioning mechanisms II (3) are longitudinally arranged at the other end of the base (1) in parallel and can rotate back to back or oppositely, and each rotary positioning mechanism II (3) comprises a lower positioning rod (31) and a pressing block (32) correspondingly arranged above the lower positioning rod (31);
three groups of shaft sleeve positioning mechanisms (4) are transversely arranged on the base (1) in parallel, and two shaft sleeve positioning mechanisms (4) in the same group are arranged oppositely;
two supporting mechanisms (5) respectively positioned between two adjacent groups of shaft sleeve positioning mechanisms (4);
the positioning groove mechanisms (6) are oppositely arranged at the end where the rotary positioning mechanism II (3) is located, and the positioning groove mechanisms (6) can synchronously and transversely move with the shaft sleeve positioning mechanisms (4) adjacent to the positioning groove mechanisms;
the rotary positioning mechanism I (2) and the rotary positioning mechanism II (3) are oppositely arranged, and the upper positioning rod (21) and the lower positioning rod (31) can move oppositely;
the rotary positioning mechanism I (2) comprises a rotating shaft I (23) vertically installed on the base (1) and a rotating frame I (24) in rotating fit with the rotating shaft I (23);
a telescopic cylinder I (25) is mounted on the rotating frame I (24), and the upper positioning rod (21) is connected with a piston rod of the telescopic cylinder I (25);
a pneumatic rapid clamp I (26) is mounted below the telescopic cylinder I (25), the positioning block (22) is mounted on a swing arm of the pneumatic rapid clamp I (26), and the pneumatic rapid clamp I (26) can drive the positioning block (22) to swing towards the direction of the upper positioning rod (21);
in the rotary positioning mechanism I (2), an upper positioning rod (21) penetrates through a main rod (81) of a scissor arm and is matched above a long shaft sleeve I (83) of the scissor arm, and a positioning block (22) is positioned at the bottom of the main rod (81);
in the rotary positioning mechanism II (3), a lower positioning rod (31) penetrates into the main rod (81) and is matched below a long shaft sleeve II (84) of the scissor arm, and a pressing block (32) is pressed above the main rod (81);
when the scissor arm is welded for the first time, the rotary positioning mechanism I (2) and the rotary positioning mechanism II (3) are in an avoiding state, so that a long shaft sleeve of the scissor arm is welded on the main rod (81), a short shaft sleeve (85) of the scissor arm is welded on a V-shaped plate (82) of the scissor arm, and two ends of the V-shaped plate (82) are welded on the corresponding long shaft sleeve;
after the completion of primary welding, the two ends of the scissor arm are positioned by the aid of the rotary positioning mechanism I (2) and the rotary positioning mechanism II (3) to perform secondary welding, namely, the contact edges of the V-shaped plate (82) and the main plate (81) are welded.
2. The scissor arm welding method according to claim 1, wherein the base (1) is mounted on two oppositely arranged welding positioners (7);
the welding positioner is characterized in that mounting plates (11) are arranged at two ends of the base (1), mounting blocks (12) are arranged on the outer sides of the mounting plates (11), and the mounting blocks (12) are fixed in mounting seats of the welding positioner (7).
3. A method of welding a scissor arm according to claim 1, wherein the lower side of the end of the upper positioning bar (21) is provided with an arc-shaped positioning notch i (27).
4. The welding method of the scissor arm according to claim 1, wherein the rotating positioning mechanism II (3) comprises a rotating shaft II (33) vertically installed on the base (1) and a rotating frame II (34) rotatably fitted on the rotating shaft II (33);
a telescopic cylinder II (35) is mounted on the rotating frame II (34), and the lower positioning rod (31) is connected with a piston rod of the telescopic cylinder II (35);
a pressing cylinder (36) is installed above the telescopic cylinder II (35), the pressing block (32) is connected with a piston rod of the pressing cylinder (36), and the pressing cylinder (36) can drive the pressing block (32) to move downwards;
an arc-shaped positioning notch II (37) is formed in the upper side of the end part of the lower positioning rod (31).
5. The method for welding the arm of a scissors according to claim 1, wherein a locking component is respectively arranged between the two rotary positioning mechanisms I (2) and between the two rotary positioning mechanisms II (3), and a clamping component is respectively arranged at the outer sides of the rotary positioning mechanisms I (2) and the rotary positioning mechanisms II (3).
6. The scissor arm welding method according to claim 1, wherein the bushing positioning mechanism (4) comprises a pneumatic tensioning pin (41), a pushing cylinder (42) is arranged below the pneumatic tensioning pin (41), and the pushing cylinder (42) can drive the two pneumatic tensioning pins (41) of the same group to move towards or away from each other.
7. The scissor arm welding method according to claim 1, wherein a set of bushing positioning mechanisms (4) adjacent to the rotational positioning mechanism i (2) are laterally movable on the base (1);
the positioning groove mechanism (6) and the shaft sleeve positioning mechanism (4) adjacent to the positioning groove mechanism are arranged on the same transverse moving plate I (61), and the transverse moving plate I (61) can transversely move on the base (1).
8. A method for welding a scissor arm according to claim 1, wherein the support mechanism (5) comprises a support frame (51) and oppositely arranged support seats (52) mounted on the support frame (51), and a baffle (53) is arranged above and outside each support seat (52);
and the supporting seat (52) is provided with a roller (54).
9. The method for welding the scissor arm according to claim 8, wherein two front mandrel seats (55) are mounted at two ends of the supporting frame (51) close to the rotary positioning mechanism I (2) facing one side of the rotary positioning mechanism I (2), and a longitudinally-arranged positioning mandrel (56) is detachably mounted in each of the two front mandrel seats (55);
a rear mandrel seat (510) is installed in the middle of one side, facing the rotary positioning mechanism II (3), of the support frame (51) close to the rotary positioning mechanism I (2), and the rear mandrel seat (510) can be opened or closed;
be close to the bottom of support frame (51) of rotary positioning mechanism I (2) is installed sideslip board II (513), sideslip board II (513) can be in lateral sliding on base (1).
10. The scissor arm welding method according to claim 1, wherein the positioning groove mechanism (6) comprises a positioning seat (66) with a V-shaped notch, and a pneumatic quick clamp II (67) arranged outside the positioning seat (66), wherein a pressing block (68) is mounted on a swing arm of the pneumatic quick clamp II (67), and the pressing block (68) is positioned above the positioning seat (66) and can swing towards the direction of the positioning seat (66).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110544778.9A CN113146130B (en) | 2021-05-19 | 2021-05-19 | Multifunctional positioning tool for welding of scissor arm |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110544778.9A CN113146130B (en) | 2021-05-19 | 2021-05-19 | Multifunctional positioning tool for welding of scissor arm |
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| CN113146130B true CN113146130B (en) | 2023-04-14 |
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| CN116532800B (en) * | 2023-07-06 | 2023-09-22 | 武汉创恒激光智能装备有限公司 | Laser welding device for valve plate assembly of automobile throttle valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH688751A5 (en) * | 1996-12-20 | 1998-02-27 | Crealiz Gmbh | Welding jig |
| CN102837161B (en) * | 2012-09-04 | 2015-04-22 | 南阳二机石油装备(集团)有限公司 | Manufacturing method and positioning and clamping device of telescopic boom body of crane |
| CN107175452A (en) * | 2017-06-22 | 2017-09-19 | 意欧斯智能科技股份有限公司 | A kind of frock group of forklift door frame is to device |
| CN108161311B (en) * | 2018-01-11 | 2019-11-29 | 株洲天一自动焊接装备有限公司 | A kind of welding tooling of inside and outside fork class part |
| CN211331866U (en) * | 2019-11-26 | 2020-08-25 | 湖南杰希重工有限公司 | Flexible welding workstation for scissor arm |
| CN212217530U (en) * | 2020-05-28 | 2020-12-25 | 常州伟泰科技股份有限公司 | Automatic welding workstation of lift scissor arm |
| CN213105181U (en) * | 2020-09-14 | 2021-05-04 | 常州伟泰科技股份有限公司 | Welding positioning machining center for scissor arm of lifter |
| CN112676755A (en) * | 2021-01-07 | 2021-04-20 | 诺力智能装备股份有限公司 | Scissor positioning and mounting device suitable for industrial vehicle |
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