CN112589346B - Threshold inner plate assembly welding tool and welding method thereof - Google Patents

Threshold inner plate assembly welding tool and welding method thereof Download PDF

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Publication number
CN112589346B
CN112589346B CN202011393144.XA CN202011393144A CN112589346B CN 112589346 B CN112589346 B CN 112589346B CN 202011393144 A CN202011393144 A CN 202011393144A CN 112589346 B CN112589346 B CN 112589346B
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strip
clamping
block
welding
guide rail
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CN112589346A (en
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汪维慧
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Wuxi Dawn Die and Stamping Co Ltd
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Wuxi Dawn Die and Stamping Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0408Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses a threshold inner plate assembly tool and a welding method thereof, wherein the welding process comprises the following steps: comprises a welding tool table; installing a part and a threshold inner plate on the table top of the welding tool table; then operating the clamping buttons, respectively driving the corresponding clamping structures by the air cylinders to clamp, then operating the buttons for controlling positioning, and driving the corresponding positioning guide rail structures by the air cylinders to clamp and position the parts and the inner plates of the doorsill by matching with the clamping structures; then under the condition that the proximity switch senses the parts, the welding robot is started to weld; and after the welding is finished, operating a release button, driving a corresponding clamping structure and a positioning guide rail structure to return by an air cylinder, and finally taking out the welded threshold inner plate. The invention provides a welding tool for a threshold inner plate assembly and a welding method thereof, which can effectively stabilize parts and the threshold inner plate and are convenient to weld.

Description

Threshold inner plate assembly welding tool and welding method thereof
Technical Field
The invention relates to the field of threshold inner plates, in particular to the field of welding tools for threshold inner plate assemblies.
Background
In industrial production, a plurality of parts are required to be fixed in a welding mode, and in the welding process, if the parts are easy to deviate, the parts are misplaced after the welding is finished, so that the parts cannot be installed in the process of installation, and waste is caused; therefore, when the parts are welded, the parts are required to be stabilized and then the welding is started; this ensures that the welded parts can be installed.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the welding tool and the welding method for the threshold inner plate assembly, which can effectively stabilize parts and the threshold inner plate and are convenient to weld.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
a threshold inner plate assembly tool is characterized in that the welding process is as follows: comprises a welding tool table; installing a part and a threshold inner plate on the table top of the welding tool table; then operating the clamping buttons, respectively driving the corresponding clamping structures by the air cylinders to clamp, then operating the buttons for controlling positioning, and driving the corresponding positioning guide rail structures by the air cylinders to clamp and position the parts and the inner plates of the doorsill by matching with the clamping structures; then under the condition that the proximity switch senses the parts, the welding robot is started to weld; after welding is finished, a release button is operated, a cylinder drives a corresponding clamping structure and a positioning guide rail structure to return to a position, and finally, a welded threshold inner plate is taken out; the inner plate of the threshold can be welded stably.
Further, the welding tool table comprises a welding platform; a plurality of clamping structures are arranged at intervals on the edge of one side of the welding platform; the clamping structure in the middle of the welding platform is arranged on the positioning guide rail structure; clamping structures at two ends of the welding platform are pressed at two ends of the inner plate of the threshold; the positioning guide rail structure in the middle of the welding platform drives the corresponding clamping structure to push against the inner plate of the doorsill; the clamping structure is matched with the positioning guide rail structure to clamp and position the inner plate and the part of the threshold.
Further, the clamping structure comprises a support plate; the supporting plate is fixed on one side edge of the welding platform; swing arms are arranged on the support plates at intervals; the cylinder is in driving connection with one end of the swing arm close to the edge of the welding platform; the side, close to the driving end, of the swing arm is rotationally connected with the supporting plate through a rotating block; the swing arm swings up and down away from one end of the air cylinder; a connecting strip is fixedly arranged on the side wall of the supporting plate under the movement end of the swing arm; one end of the connecting strip, which is far away from the supporting plate, extends towards the middle part of the welding platform; the side walls of the connecting strips are correspondingly provided with part tables; the surfaces of the connecting strips form a placing plane, and positioning pins are fixedly arranged on the surfaces of the connecting strips; the positioning pin protrudes out of the placement plane; and the threshold inner plate is provided with a plurality of positioning holes, and the positioning pins are correspondingly embedded into the positioning holes to perform preliminary positioning.
Further, pressing structures are arranged on the swinging ends of the swinging arms along the two ends of the welding platform; the pressing structure comprises a bending block and two tooth pressing blocks; bending blocks are fixedly arranged on the side wall of the swinging end of the swinging arm at one end of the welding platform, and a plurality of bending blocks are arranged at intervals; a cushion block is fixedly arranged on the bending end of the bending block, which faces the connecting strip; a two-tooth pressing block is fixedly arranged on the side wall of the swinging end of the swinging arm at the other end of the welding platform; the two-tooth pressing block is provided with a plurality of pressing teeth at intervals towards one side of the welding platform; the two ends of the inner plate of the threshold are pressed and fixed through the bending block and the two-tooth pressing block.
Further, a latch structure is arranged on the swing end of the swing arm close to the middle part of the welding platform of the bending block; the latch structure comprises a fixed bar block; a plurality of fixed bar blocks are fixedly arranged on the bottom surface of the swinging end of the swinging arm at intervals; a transverse bar is arranged on the side wall of the fixed bar block far away from the air cylinder; one end of the transverse bar, which is far away from the fixed bar block, is fixedly provided with a first clamping bar; one end, far away from the transverse bar, of the first clamping bar is arranged towards the surface of the welding platform; a second clamping strip is fixedly arranged at one end, close to the transverse strip, of the fixing strip block, and the second clamping strip is arranged in parallel with the first clamping strip at a distance; the extending end of the second clamping strip is oriented folding in the direction away from the swing arm; the first clamping strip and the second clamping strip are clamped on the side wall of the strip-shaped part together, so that the clamping of the resisting block is facilitated.
A U-shaped block is arranged on the side wall of the fixed bar block close to the air cylinder; the opening of the U-shaped block faces to one side far away from the air cylinder; the U-shaped blocks and the first clamping strips are distributed on two sides of the corresponding swing arms; an abutting strip is fixedly arranged at one end, far away from the swing arm, of the U-shaped block; the propping strip is in a fold line shape; the bending end of the supporting strip is supported against the inner plate of the threshold; the threshold inner plate is provided with a strip part with a bent connecting end; the first clamping strip and the second clamping strip are correspondingly clamped on the outer side wall of the strip part; the propping strip correspondingly props against the outer side wall of the bending end of the strip part; the side wall of the middle part of the U-shaped block is fixedly provided with a stable block; an adjusting rod is movably arranged on the stabilizing block, and the pressing end of the adjusting rod is correspondingly pressed on the surface of the strip part; pressing the long part.
Further, the positioning guide rail structure comprises a transverse guide rail, the transverse guide rail is fixedly arranged along the length direction of the welding platform, and the transverse guide rail is arranged close to one side of the latch structure; the clamping structures corresponding to the middle parts of the welding platforms are slidably clamped in the transverse guide rails; a supporting structure is arranged on the swing end of the swing arm corresponding to the transverse guide rail; the abutting structure comprises a guide connection strip and an abutting block; one end of the guide connection strip is fixedly arranged on the swing end of the swing arm; the other end of the guide connection strip is fixedly provided with a stop block through a bolt; a plurality of slotted holes are formed in the side wall of the resisting block in a penetrating way; the power device drives the corresponding clamping structure to slide in the transverse guide rail, and the resisting block correspondingly abuts against the inner side wall of the strip part, so that stability is improved.
Further, a part table is arranged on the other side of the resisting block opposite to the latch structure; the part table is fixed on the welding platform through a connecting support plate; the part table and the placement plane are positioned on the same plane; when the corresponding clamping structure slides in the transverse guide rail, the resisting block correspondingly slides to the position of the part table; the abutting block abuts against the strip-shaped part, and welding can be facilitated.
Further, the positioning guide rail structure further comprises a longitudinal guide rail; a sliding table is arranged in the longitudinal guide rail in a sliding manner; clamping structures are respectively arranged at two ends of the surface of the sliding table; the side wall of the supporting plate corresponding to the sliding table is fixedly provided with a push bar; one end of the ejector strip far away from the supporting plate is bent upwards; a third clamping strip is fixedly arranged on the swing end of the swing arm corresponding to the sliding table; the driving device drives the sliding table to drive the corresponding clamping structure to move; the ejection strip is abutted against the inner side wall of the strip part, and the third clamping strip is clamped on the outer side wall of the strip part; and the part is clamped by the matching of the third clamping strip and the ejection strip.
Further, a claw tooth structure is arranged on the swing end of the swing arm between the longitudinal guide rail and the two-tooth pressing blocks; the claw tooth structure comprises a plurality of seven-fold strip blocks; the seven-fold strip block is 7-shaped, and one section of the seven-fold strip block is bent; one of the seven-fold strip blocks is fixed on the swing end of the corresponding swing arm; the other seven-fold strip block is fixed on the swing end of the swing arm through a fixed connecting strip, and a mounting piece is arranged on one section of the seven-fold strip block; an adjusting rod is arranged on the mounting piece; when in clamping, the bending end of one seven-fold strip block is correspondingly clamped on the bending side wall of the strip part; the other seven-fold bar block is correspondingly clamped at the side wall position of the long part, and the abutting end of the adjusting rod is abutted against the surface of the long part; the strip-shaped part is convenient to clamp.
Further, the first step: firstly, mounting parts on corresponding part tables, and then mounting a threshold inner plate on a placement plane; then, a clamping button I is operated, and the air cylinders A, B and C drive the corresponding swing arms to swing and clamp the inner plate of the doorsill;
and a second step of: operating a second clamping button; the cylinders D and E drive corresponding clamping structures on the positioning guide rail structure to clamp and position the long part; and then the bending end parts at the two ends of the strip part are installed in place;
and a third step of: firstly, operating a clamping button III; the cylinders F and G drive corresponding clamping structures to clamp; then the clamping button IV is operated, and the air cylinders H and I drive the corresponding clamping structures to clamp;
fourth step: when the approaching lights of the positions of the plurality of part tables sense the parts, the welding can be started; after the welding is finished, loosening the clamping button five, the clamping button six, the clamping button seven and the clamping button eight; the cylinder drives the corresponding clamping structure to retract to the initial position.
The beneficial effects are that: the invention can fix the inner plate of the threshold and the parts through the mutual matching of the clamping structure and the positioning guide rail structure, thereby being convenient for welding; including but not limited to the following benefits:
1) A plurality of clamping structures are arranged on the welding platform to clamp the threshold inner plate, parts are stabilized on the threshold inner plate, and then welding is carried out; therefore, dislocation of the inner plate of the threshold and parts during welding can be avoided, and the qualification rate of products is influenced;
2) The bottom of the clamping structure in the welding platform is provided with a positioning guide rail structure which can drive the clamping structure to move, so that the inner plate of the threshold and the parts can be pushed, positioned and clamped from the side; the parts and the inner plate of the threshold can be prevented from moving during welding; and the welding is convenient.
Drawings
FIG. 1 is a diagram of a welding platform;
FIG. 2 is a diagram of a clamping structure;
FIG. 3 is a diagram of a bending block structure;
FIG. 4 is a diagram of a two-tooth press block structure;
FIG. 5 is a latch structure diagram;
FIG. 6 is a view showing the construction of a rocker inner panel;
FIG. 7 is a diagram of a resist block configuration;
FIG. 8 is a block diagram of a parts table;
FIG. 9 is a block diagram of a slide table;
FIG. 10 is a view of the pawl tooth structure;
fig. 11 is a welding operation chart.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-11: a threshold inner plate assembly tool comprises the following welding processes: comprises a welding tool table; installing a part and a threshold inner plate on the table top of the welding tool table; then operating the clamping buttons, respectively driving the corresponding clamping structures by the air cylinders to clamp, then operating the buttons for controlling positioning, and driving the corresponding positioning guide rail structures by the air cylinders to clamp and position the parts and the inner plates of the doorsill by matching with the clamping structures; then under the condition that the proximity switch senses the parts, the welding robot is started to weld; after welding is finished, a release button is operated, a cylinder drives a corresponding clamping structure and a positioning guide rail structure to return to a position, and finally, a welded threshold inner plate is taken out; the inner plate of the threshold and the parts can be stabilized by the cooperation of the clamping structure and the positioning guide rail structure; the welding process can ensure the beautiful appearance of the welded threshold inner plate and avoid the welding dislocation of parts.
The welding tool table comprises a welding platform 1; a plurality of clamping structures 2 are arranged at intervals on the edge of one side of the welding platform 1; the clamping structure 2 in the middle of the welding platform 1 is arranged on the positioning guide rail structure 3; clamping structures 2 at two ends of the welding platform 1 are pressed at two ends of a threshold inner plate 4; the positioning guide rail structure 3 in the middle of the welding platform 1 drives the corresponding clamping structure 2 to push against the threshold inner plate 4; the plurality of clamping structures 2 are matched with the clamping threshold inner plate 4, and the positioning guide rail structures 3 are matched with the clamping structures to position the threshold inner plate and the parts; the inner plate of the threshold can be convenient to stabilize, and meanwhile, parts can be guaranteed to be installed at the correct position, so that the inner plate of the threshold can have perfect stability after welding, welding dislocation can not be caused, and the yield is improved.
The clamping structure 2 comprises a support plate 21; the supporting plate 21 is fixed on one side edge of the welding platform 1; swing arms 22 are arranged on the support plate 21 at intervals; the cylinder is in driving connection with one end of the swing arm 22 close to the edge of the welding platform 1; the side, close to the driving end, of the swing arm 22 is rotationally connected with the supporting plate 21 through a rotating block 23; the swing arm 22 swings up and down away from one end of the cylinder; a connecting strip 24 is fixedly arranged on the side wall of the supporting plate 21 under the movement end of the swing arm 22; the connecting strip 24 extends towards the middle of the welding platform 1 from one end far away from the supporting plate 21; the side walls of the connecting strips 24 are correspondingly provided with part tables 7; the surfaces of the connecting strips 24 form a placing plane 25, and positioning pins 241 are fixedly arranged on the surfaces of the connecting strips 24; placing the rocker inner panel on the placement plane 25; the parts are mounted on a part table 7 and welded after being stabilized; the positioning pin 241 protrudes from the placement plane 25; the threshold inner plate 4 is provided with a plurality of positioning holes 41, and the positioning pins 241 are correspondingly embedded into the positioning holes 41. The air cylinder drives one end of the swing arm to move, and the other end of the swing arm swings up and down, so that parts below the swing end of the swing arm are clamped firmly;
a pressing structure 5 is arranged on the swinging ends of the swinging arms 22 along the two ends of the welding platform 1; the pressing structure 5 comprises a bending block 51 and a two-tooth pressing block 52; bending blocks 51 are fixedly arranged on the side wall of the swinging end of the swinging arm 22 at one end of the welding platform 1, and a plurality of the bending blocks 51 are arranged at intervals; a cushion block 511 is fixedly arranged on the bending end of the bending block 51, which faces the connecting strip 24; the swing arm drives the bending block 51 to move, and the bending block 51 drives the cushion block 511 to press on the surface of the inner plate 4 of the threshold, so that the vertical displacement of the inner plate of the threshold can be effectively limited, and the stabilizing effect is achieved; a two-tooth pressing block 52 is fixedly arranged on the side wall of the swinging end of the swinging arm 22 at the other end of the welding platform 1; a plurality of pressing teeth 521 are arranged at intervals on one side of the two-tooth pressing block 52 facing the welding platform 1; the swing arm drives the two-tooth pressing block 52 to press on the inner plate of the threshold, and the pressing tooth 521 is clamped on the edge of the inner plate of the threshold, so that the inner plate of the threshold can be well stabilized.
A latch structure 6 is arranged on the swinging end of the swinging arm 22 near the middle part of the welding platform 1 of the bending block 51; the latch structure 6 comprises a fixed bar 61; a plurality of fixed bar blocks 61 are fixedly arranged on the bottom surface of the swinging end of the swinging arm 22 at intervals; a transverse bar 62 is arranged on the side wall of the fixed bar block 61 far away from the cylinder; a first clamping strip 621 is fixedly arranged at one end of the transverse strip 62 far away from the fixed strip block 61; one end of the first clamping strip 621, which is far away from the transverse strip 62, is arranged towards the surface of the welding platform 1; a second clamping bar 622 is fixedly arranged at one end of the fixed bar 61, which is close to the transverse bar 62, and the second clamping bar 622 and the first clamping bar 621 are arranged in parallel at intervals; the extending end of the second clamping strip 622 forms a turnover 623 towards the direction away from the swing arm 22; the first clamping strip 621 and the second clamping strip 622 are correspondingly clamped on the side wall of the long part 42, and can be matched with the blocking block to fix the long part.
A U-shaped block 63 is arranged on the side wall of the fixed bar block 61 close to the air cylinder; the opening of the U-shaped block 63 faces to the side far away from the cylinder; the U-shaped blocks 63 and the first clamping strips 621 are distributed on two sides of the corresponding swing arm 22; an abutting strip 631 is fixedly arranged at one end of the U-shaped block 63 far away from the swing arm 22; the propping strip 631 is in a fold line shape; the bending end of the abutting strip 631 abuts against the doorsill inner plate 4; the threshold inner plate 4 is provided with a strip part 42 with a bent connecting end; the first clamping strip 621 and the second clamping strip 622 are correspondingly clamped on the outer side wall of the long part 42; the propping strip 631 correspondingly props against the outer side wall of the bending end of the strip part 42; the side wall of the middle part of the U-shaped block 63 is fixedly provided with a stabilizing block 64; an adjusting rod 65 is movably disposed on the fixing block 64, and a pressing end of the adjusting rod 65 is correspondingly pressed against the surface of the elongated part 42. When the swing arm drives the U-shaped block to swing, the abutting strip 631 on the U-shaped block correspondingly abuts against the side wall of the bending end of the long-strip part, and meanwhile, the adjusting rod 65 presses the surface of the long-strip part, so that the long-strip part and the bending end of the long-strip part can be well stabilized.
The positioning guide rail structure 3 comprises a transverse guide rail 31, the transverse guide rail 31 is fixedly arranged along the length direction of the welding platform 1, and one side, close to the latch structure 6, of the transverse guide rail 31 is arranged; the clamping structure 2 corresponding to the middle part of the welding platform 1 is slidably clamped in the transverse guide rail 31; the swing end of the swing arm 22 corresponding to the transverse guide rail 31 is provided with a propping structure 66; the abutting structure 66 comprises a guide joint bar 661 and a resisting block 662; one end of the guide connecting bar 661 is fixedly arranged on the swinging end of the swinging arm 22; the other end of the guide connection bar 661 is fixedly provided with a resisting block 662 through a bolt; a plurality of slotted holes 663 are formed in the side wall of the resisting block 662 in a penetrating way; the power device drives the corresponding clamping structure 2 to slide in the transverse guide rail 31, and the resisting block 662 correspondingly abuts against the inner side wall of the long part 42. The power device drives the corresponding clamping structure 2 to move in the transverse guide rail, and the abutting block 662 abutting against the inner side wall of the long-strip part 42 moves along with the movement, so that the abutting block 662 can push against a plurality of areas on the inner side of the long-strip part 42, and the long-strip part 42 can be stably matched and clamped by the abutting block 662 and the third clamping strip, so that stability is ensured, and welding is convenient.
The other side of the blocking block 662 opposite to the latch structure 6 is provided with a part table 7; the part table 7 is fixed on the welding platform 1 through a connecting support plate 71; the part table 7 is positioned on the same plane with the placement plane 25; the corresponding abutment 662 slides to the position of the part table 7 when the corresponding clamping structure 2 slides in the transverse rail 31. Firstly, parts are installed on the part table 7, then the threshold inner plate 4 is installed, finally, the long-strip parts 42 are installed, clamping and stabilizing are carried out, and after the proximity switch senses that the parts reach the designated positions, welding is started.
The positioning guide rail structure 3 further comprises a longitudinal guide rail 8; a sliding table 81 is arranged in the longitudinal guide rail 8 in a sliding manner; clamping structures 2 are respectively arranged at two ends of the surface of the sliding table 81; a push bar 82 is fixedly arranged on the side wall of the support plate 21 corresponding to the sliding table 81; the end of the push bar 82 far away from the supporting plate 21 is bent upwards; a third clamping strip 83 is fixedly arranged on the swinging end of the swinging arm 22 corresponding to the sliding table 81; the driving device drives the sliding table 81 to drive the corresponding clamping structure 2 to move; the ejector strip 82 abuts against the inner side wall of the long part 42, and the third clamping strip 83 is clamped to the outer side wall of the long part 42. The driving device drives the sliding table 81 to drive the corresponding clamping structure 2 to move on the longitudinal guide rail 8, the pushing strip 82 pushes against the inner side wall of the long-strip part 42, and the third clamping strip 83 is clamped on the outer side wall of the long-strip part 42, so that the part can be firmly fixed, and the installation is convenient.
A claw tooth structure 9 is arranged on the swinging end of the swinging arm 22 between the longitudinal guide rail 8 and the two-tooth pressing block 52; the pawl tooth structure 9 includes a plurality of seven-fold bar pieces 91; the seven-fold strip block 91 is 7-shaped, and one section of the seven-fold strip block 91 is folded; one of the seven-fold blocks 91 is fixed to the swing end of the corresponding swing arm 22; the other seven-fold block 91 is fixed on the swinging end of the swinging arm 22 through a fixed connecting strip, and a mounting plate 93 is arranged on one section of the seven-fold block 91; an adjusting rod 65 is arranged on the mounting piece 93; when clamping, the bending end of one of the seven-fold strip blocks 91 is correspondingly clamped on the bending side wall of the strip part 42; the other seven-fold bar 91 is correspondingly clamped at the side wall of the long part 42, and the abutting end of the adjusting rod 65 abuts against the surface of the long part 42. The plurality of seven-fold strip blocks 91 in the claw structure respectively clamp the strip part 42 and the bending end of the strip part, and the adjusting rod 65 is propped against the surface of the strip part; can play a very good role in stabilizing.
The first step: firstly, mounting the parts on the corresponding part table 7, and then mounting the threshold inner plate 4 on the placement plane 25; then, the clamping button 1-1 is operated, and the air cylinders A, B and C drive the corresponding swing arms 22 to swing and clamp the inner plate 4 of the doorsill; the inner plate of the threshold is firstly stabilized and then the part is installed, so that a good stabilizing effect can be achieved, and movement during installation is avoided.
And a second step of: operating the clamping button II 1-2; the cylinders D and E drive the corresponding clamping structures 2 on the positioning guide rail structure 3 to clamp and position the long-strip parts 42; and then the bent end parts at the two ends of the long part 42 are installed in place; the clamped long part has good stability.
And a third step of: firstly, operating a clamping button III 1-3; the cylinders F and G drive the corresponding clamping structures 2 to clamp; then, the clamping buttons four 1-4 are operated, and the cylinders H and I drive the corresponding clamping structures 2 to clamp; therefore, the strip-shaped part and the bending ends at the two ends of the strip-shaped part can be firmly fixed, and welding is facilitated.
Fourth step: when the approaching lights of the positions of the plurality of part tables 7 sense the parts, the welding can be started; after welding is finished, loosening the clamping button five, the clamping button six, the clamping button seven and the clamping button eight in sequence; the cylinders drive the respective clamping structures 2 back to the initial position. The proximity switch senses the part, and the part is indicated to be installed at the correct position, so that after welding, the inner plate of the threshold and the part bracket cannot deviate, and the effect after welding is improved; and during control of the clamp button; the air cylinder controlled by the clamping button II, the air cylinder controlled by the clamping button III, the air cylinder controlled by the clamping button six and the air cylinder controlled by the clamping button seven have the motion interference phenomenon, and the sequence of clamping and loosening is required to be controlled; therefore, after the second clamping button acts, the third clamping button can be started; after the clamping button six acts, the clamping button seven can be started; the operation can avoid influencing the clamping structure, and improve the clamping stability.
The foregoing is a preferred embodiment of the present invention and it will be apparent to those skilled in the art that modifications and variations can be made without departing from the principles of the present invention, and these modifications and variations are also considered to be within the scope of the invention.

Claims (3)

1. The welding tool for the doorsill inner plate assembly is characterized by comprising a welding tool table; the welding tool table comprises a welding platform (1); a plurality of clamping structures (2) are arranged at intervals on the edge of one side of the welding platform (1); a positioning guide rail structure (3) is arranged on the welding platform (1); the clamping structure (2) in the middle of the welding platform (1) is arranged on the positioning guide rail structure (3); clamping structures (2) at two ends of the welding platform (1) are pressed at two ends of the threshold inner plate (4); a positioning guide rail structure (3) in the middle of the welding platform (1) drives a corresponding clamping structure (2) to push against a threshold inner plate (4);
the clamping structure (2) comprises a support plate (21); the supporting plate (21) is fixed on one side edge of the welding platform (1); swing arms (22) are arranged on the support plates (21) at intervals; the cylinder is in driving connection with one end of the swing arm (22) close to the edge of the welding platform (1); one side of the swing arm (22) close to the driving end is rotationally connected with the supporting plate (21) through a rotating block (23); the swing arm (22) swings up and down away from one end of the air cylinder; a connecting strip (24) is fixedly arranged on the side wall of the supporting plate (21) right below the movement end of the swing arm (22); one end of the connecting strip (24) far away from the supporting plate (21) extends towards the middle part of the welding platform (1); the side walls of the connecting strips (24) are correspondingly provided with part tables (7); the surfaces of the connecting strips (24) form a placing plane (25), and positioning pins (241) are fixedly arranged on the surfaces of the connecting strips (24); the positioning pin (241) protrudes from the placement plane (25); a plurality of positioning holes (41) are formed in the threshold inner plate (4), and the positioning pins (241) are correspondingly embedded into the positioning holes (41);
the positioning guide rail structure (3) comprises a transverse guide rail (31), the transverse guide rail (31) is fixedly arranged along the length direction of the welding platform (1), and the transverse guide rail (31) is arranged close to one side of the latch structure (6); the clamping structures (2) corresponding to the middle parts of the welding platforms (1) are slidably clamped in the transverse guide rails (31); a supporting structure (66) is arranged on the swinging end of the swinging arm (22) corresponding to the transverse guide rail (31); the abutting structure (66) comprises a guide connection strip (661) and a resisting block (662); one end of the guide connection strip (661) is fixedly arranged on the swinging end of the swinging arm (22); the other end of the guide connection strip (661) is fixedly provided with a stop block (662) through a bolt; a plurality of slotted holes (663) are formed in the side wall of the resisting block (662) in a penetrating way; the power device drives the corresponding clamping structure (2) to slide in the transverse guide rail (31), and the resisting block (662) correspondingly abuts against the inner side wall of the strip-shaped part (42);
the positioning guide rail structure (3) further comprises a longitudinal guide rail (8); a sliding table (81) is arranged in the longitudinal guide rail (8) in a sliding manner; clamping structures (2) are respectively arranged at two ends of the surface of the sliding table (81); the side wall of the supporting plate (21) corresponding to the sliding table (81) is fixedly provided with a push bar (82); one end of the ejection strip (82) far away from the supporting plate (21) is bent upwards; a third clamping strip (83) is fixedly arranged on the swinging end of the swinging arm (22) corresponding to the sliding table (81); the driving device drives the sliding table (81) to drive the corresponding clamping structure (2) to move; the ejector strip (82) is abutted against the inner side wall of the long part (42), and the third clamping strip (83) is clamped on the outer side wall of the long part (42);
the other side of the resisting block (662) opposite to the latch structure (6) is provided with a part table (7); the part table (7) is fixed on the welding platform (1) through a connecting support plate (71); the part table (7) and the placement plane (25) are positioned on the same plane; when the corresponding clamping structure (2) slides in the transverse guide rail (31), the resisting block (662) correspondingly slides to the position of the part table (7).
2. The welding fixture for the inner rocker panel assembly according to claim 1, wherein: bending blocks (51) are fixedly arranged on the side wall of the swinging end of the swinging arm (22) at one end of the welding platform (1), and a plurality of the bending blocks (51) are arranged at intervals; a cushion block (511) is fixedly arranged on the bending end of the bending block (51) facing the connecting strip (24); a two-tooth pressing block (52) is fixedly arranged on the side wall of the swinging end of the swinging arm (22) at the other end of the welding platform (1); the two-tooth pressing block (52) is provided with a plurality of pressing teeth (521) at intervals towards one side of the welding platform (1).
3. The welding fixture for the inner rocker panel assembly according to claim 2, wherein: a latch structure (6) is arranged on the swing end of the swing arm (22) close to the middle part of the welding platform (1) of the bending block (51); the latch structure (6) comprises a fixed bar (61); a plurality of fixed bar blocks (61) are fixedly arranged on the bottom surface of the swinging end of the swinging arm (22) at intervals; the side wall of the fixed bar block (61) far away from the air cylinder is provided with a transverse bar (62); a first clamping strip (621) is fixedly arranged at one end, far away from the fixed strip block (61), of the transverse strip (62); one end, far away from the transverse bar (62), of the first clamping bar (621) is arranged towards the surface of the welding platform (1); a second clamping strip (622) is fixedly arranged at one end, close to the transverse strip (62), of the fixed strip block (61), and the second clamping strip (622) and the first clamping strip (621) are arranged at intervals in parallel; the extending end of the second clamping strip (622) forms a turnover (623) towards the direction far away from the swing arm (22);
the side wall of the fixed bar block (61) close to the air cylinder is provided with a U-shaped block (63); the opening of the U-shaped block (63) faces to the side far away from the cylinder; the U-shaped blocks (63) and the first clamping strips (621) are distributed on two sides of the corresponding swing arms (22); an abutting strip (631) is fixedly arranged at one end, far away from the swing arm (22), of the U-shaped block (63); the propping strip (631) is in a fold line shape; the bending end of the abutting strip (631) abuts against the threshold inner plate (4); the threshold inner plate (4) is provided with a strip part (42) with two bent ends; the first clamping strip (621) and the second clamping strip (622) are correspondingly clamped on the outer side wall of the long part (42); the propping strip (631) is correspondingly propped against the outer side wall of the bending end of the strip part (42); a stabilizing block (64) is fixedly arranged on the side wall of the middle part of the U-shaped block (63); an adjusting rod (65) is movably arranged on the stabilizing block (64), and the pressing end of the adjusting rod (65) is correspondingly pressed on the surface of the long part (42).
CN202011393144.XA 2020-12-02 2020-12-02 Threshold inner plate assembly welding tool and welding method thereof Active CN112589346B (en)

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CN104308440B (en) * 2014-10-11 2016-01-27 广东富华重工制造有限公司 Air chamber base positioning welding machine people equipment
CN105618984B (en) * 2016-03-16 2017-04-19 梁山中集东岳车辆有限公司 Skeleton vehicle frame assembly table
CN108127318A (en) * 2017-12-30 2018-06-08 安徽大昌科技股份有限公司 A kind of vehicle right and left side-wall inner-plate forepart unit fixture
CN108080870A (en) * 2017-12-30 2018-05-29 安徽大昌科技股份有限公司 Vehicle right and left side-wall inner-plate forepart assembly welding middle part combination clamping tool
CN110153619B (en) * 2019-06-25 2021-02-19 天津世铉汽车配件有限公司 Welding tool for automobile parts
CN110900057B (en) * 2019-11-26 2021-06-25 广州创研工业技术研究院有限公司 Welding equipment for circuit breaker and welding platform applying same

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