An H-shaped steel structure welding fixture

Abstract

The present invention relates to the technical field of welding fixtures, and in particular to an H-shaped steel structure welding fixture, comprising a supporting vertical plate, a base, a clamping mechanism, a reciprocating material extraction mechanism, and a flipping mechanism. The clamping mechanism, the reciprocating material extraction mechanism, and the flipping mechanism used in the H-shaped steel structure welding fixture provided by the present invention cooperate with each other, and adopt the cooperation of the movable clamping point on the left side and the multiple fixed clamping points on the right side, so that the two flanges and the web can be clamped and supported at multiple points of coaxial clamping, and the material feeding and discharging are convenient, the clamping is accurate and stable, and the two flanges and the web are driven to move to the left or right intermittently. After the continuous welding of the two flanges and one side of the web is completed, it can also be driven to flip 180 degrees by multiple clamping plates one and multiple clamping plates two, so as to achieve the effect of continuing to weld the connection points on the other side of the two flanges and the web, and effectively improve the welding efficiency and welding quality of the two flanges and the web.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, and in particular to an H-shaped steel structure welding fixture. Background Art

[0002] H-shaped steel is an economical and efficient profile with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". H-shaped steel has the advantages of large cross-sectional modulus, light weight, and metal saving, and is widely used in the construction field. The classification of H-shaped steel includes hot-rolled H-shaped steel and welded H-shaped steel. The preparation of welded H-shaped steel usually requires the use of welding fixtures to weld two parallel flanges and a web connecting them.

[0003] The existing welding fixture is not easy to clamp the two flanges and one web at the same time in a relatively stable manner. When welding them, position deviation is easy to occur, and the welding quality cannot be effectively guaranteed. In addition, due to the special shape and large size of the two flanges and one web, it is necessary to weld the connection points on the upper and lower sides. After the existing welding fixture has completed welding the connection points on one side, it is not easy to flip it horizontally to continue welding the connection points on the other side. Therefore, when welding them, it is usually necessary to loosen and tighten the fixture for a number of times to perform a position adjustment step. The welding efficiency and welding quality of the two flanges and one web need to be improved. Summary of the invention

[0004] Technical problem to be solved: The H-shaped steel structure welding fixture provided by the present invention can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an H-shaped steel structure welding fixture, comprising two left and right supporting plates with circular openings in the middle, a base is commonly installed between the left and right supporting plates, a clamping mechanism is arranged on the upper end of the base, a reciprocating pulling mechanism is arranged on the left side of the base corresponding to the clamping mechanism, and a flipping mechanism is commonly arranged on the left and right supporting plates corresponding to the clamping mechanism.

[0006] The clamping mechanism includes a semicircular slide groove provided in the middle of the upper end of the base, a circular support seat 1 is provided on both sides of the semicircular slide groove, a circular support seat 2 is provided on the right side of the left circular support seat 1, an auxiliary support plate is provided on the right side of the circular support seat 2, and multiple circular support seats 2 are evenly provided between the auxiliary support plate and the right circular support seat 1. Elastic parts 1 and 2 are provided on the left and right circular support seats 1, respectively, and clamping parts are provided on both ends of the multiple circular support seats 2. The reciprocating material extraction mechanism includes a rectangular through hole provided on the left side of the lower end of the base, the rectangular through hole is connected to the semicircular slide groove, and a reciprocating material extraction part is provided on the base corresponding to the left circular support seat 2. The flipping mechanism includes circular cover plates installed through the left and right ends of the base, the opposite ends of the left and right circular cover plates are respectively rotatably installed on the corresponding supporting vertical plates, and the circular cover plates are respectively rotatably sleeved on the corresponding circular support seat 1, and the left and right supporting vertical plates are commonly provided with flipping parts corresponding to the left and right circular cover plates, and auxiliary limiting parts are provided in the left and right circular cover plates.

[0007] Preferably, the clamping mechanism also includes a plurality of guide arc holes that are evenly distributed on the left and right circular support seats 1 and the plurality of circular support seats 2. Rectangular avoidance openings are provided in the middle portions of the left and right circular support seats 1, the auxiliary support plate and the plurality of circular support seats 2. A plurality of guide arc grooves are provided at the positions of the left end of the auxiliary support plate corresponding to the plurality of guide arc holes. A plurality of support rods that are evenly distributed on the circumference are respectively installed on the opposite ends of the left and right circular support seats 1. The plurality of support rods corresponding to the left circular support seat 1 are slidably passed through the left circular support seat 2 and are fixedly connected to the auxiliary support plate. The plurality of support rods corresponding to the right circular support seat 1 are passed through the right plurality of circular support seats 2. The outer walls of the left and right annular plates, the auxiliary support plate and the plurality of circular support seats 2 on the right are rotatably connected to the inner wall of the semicircular slide groove. The outer wall of the left circular support seat 2 movably fits on the inner wall of the semicircular slide groove.

[0008] Preferably, the clamping part includes two front and rear clamping plates one each arranged on a plurality of circular support seats two, and two upper and lower clamping plates two are also arranged on the plurality of circular support seats two. One end of the two front and rear clamping plates one and the two upper and lower clamping plates two close to the corresponding circular support seat two are movably fitted on the corresponding circular support seat two, and a plurality of balls are installed on the clamping end surfaces of the plurality of clamping plates one and the plurality of clamping plates two on the corresponding right side plurality of circular support seats two.

[0009] Preferably, the elastic part includes a gear ring installed on the left end of a left circular support seat, a forward and reverse motor is installed on the right end of the left circular cover plate through a motor seat, and a rectangular avoidance groove is symmetrically provided at the upper end of the base corresponding to the position of the left forward and reverse motor, the output shaft of the forward and reverse motor rotates and passes through the corresponding circular cover plate, and is fixedly connected with an incomplete gear, which is meshed with the corresponding gear ring, and multiple support slide bars are slidably installed in multiple guide arc holes on the left circular support seat and the left circular support seat, and the multiple support slide bars respectively slide through the multiple clamps one and multiple clamps two on the corresponding left circular support seat, and the right ends of the multiple support slide bars are respectively slidably connected to the corresponding multiple guide arc grooves.

[0010] Preferably, the elastic part two includes a gear ring one installed at the right end of a right circular support seat one, a forward and reverse motor one is installed at the left end of the right circular cover plate through a motor seat, and a rectangular avoidance groove is symmetrically provided at the upper end of the base corresponding to the position of the right forward and reverse motor one, and the output shaft of the forward and reverse motor one rotates and passes through the corresponding circular cover plate, and is fixedly connected with an incomplete gear, which is meshed with the corresponding gear ring one, and multiple support slide bars two are slidably installed in multiple guide arc holes on the right circular support seat one and the right circular support seat two, and the multiple support slide bars two respectively slide through multiple clamps one and multiple clamps two on the corresponding multiple circular support seats two on the right side.

[0011] Preferably, the reciprocating material-moving part includes a sliding seat slidably installed in a rectangular through hole, the upper end of the sliding seat is an arc-shaped structure, and an arc-shaped sliding hole is opened in the middle part of the upper end of the sliding seat corresponding to the left circular support seat 2, the outer wall of the circular support seat 2 is slidably connected in the arc-shaped sliding hole, a support plate is installed at the left end of the lower end of the base corresponding to the rectangular through hole, and a forward and reverse motor 2 is installed at the right end of the lower end of the base corresponding to the rectangular through hole through a motor seat, the output shaft of the forward and reverse motor 2 is fixedly connected to a screw, the screw is threadedly connected to the sliding seat, and is fixedly connected to the support plate.

[0012] Preferably, the flipping part includes a gear ring 2 installed on the inner wall of the left and right circular cover plates close to the corresponding gear ring 1, and servo motors are respectively installed on the lower sides of the opposite ends of the left and right supporting vertical plates through motor seats, and the output shafts of the left and right servo motors respectively rotate and pass through the corresponding supporting vertical plates, and are fixedly connected with transmission gears, and the left and right transmission gears are respectively meshed with the corresponding gear ring 2.

[0013] Preferably, the auxiliary limiting portion includes connecting plates installed on the inner walls of the left and right circular cover plates on one side away from the corresponding gear ring, circular mounting plates are installed at the front ends of the left and right connecting plates, and rectangular avoidance openings are also opened in the middle parts of the left and right circular mounting plates. Multiple waist-shaped limiting holes evenly distributed in a circle are opened on the left and right circular mounting plates at positions corresponding to the multiple support slide bars 1 and the multiple support slide bars 2, the opposite ends of the multiple support slide bars 1 and the multiple support slide bars 2 are respectively slidably connected in the corresponding waist-shaped limiting holes, and the opposite ends of the multiple support slide bars 1 and the multiple support slide bars 2 are installed with circular baffles.

[0014] Preferably, a manipulator mounting base plate is installed on both the front and rear sides of the upper end of the base, and the front and rear manipulator mounting base plates are both located between the auxiliary support plate and the left circular support seat 2.

[0015] Beneficial effects: 1. The clamping mechanism adopted by the H-shaped steel structure welding fixture provided by the present invention can perform multi-point coaxial clamping and support on the two flanges and the web, and the clamping position is accurate, avoiding the problem that conventional welding fixtures are difficult to clamp the two flanges and the web and the clamping is unstable, thereby causing low welding efficiency and welding quality.

[0016] 2. The clamping mechanism used in the H-shaped steel structure welding fixture provided by the present invention cooperates with the reciprocating pulling mechanism, and adopts a movable clamping point on the left side to cooperate with multiple fixed clamping points on the right side, and intermittently drives the two flanges and the web to move to the left or right, thereby realizing continuous welding of the upper or lower sides of the two flanges and the web, effectively improving the welding efficiency of the two flanges and the web.

[0017] 3. The clamping mechanism, reciprocating material pulling mechanism and flipping mechanism adopted in the H-shaped steel structure welding fixture provided by the present invention cooperate with each other, and adopt the cooperation of the movable clamping point on the left side and the multiple fixed clamping points on the right side, so as to perform multi-point coaxial clamping support on the two flanges and the web, and the material feeding and discharging are convenient, the clamping is accurate and stable, and the two flanges and the web are intermittently driven to move to the left or right. After the continuous welding of the two flanges and one side of the web is completed, it can also be driven by multiple clamping plates one and multiple clamping plates two to flip it 180 degrees, so as to achieve the effect of continuing to weld the connection points on the other side of the two flanges and the web, and effectively improve the welding efficiency and welding quality of the two flanges and the web. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a second viewing angle.

[0021] Figure 3 It is a partially cutaway three-dimensional structural schematic diagram of the reciprocating material extraction mechanism in the present invention.

[0022] Figure 4 It is a schematic diagram of the first partial cross-section stereoscopic structure of the clamping mechanism and the flipping mechanism in the present invention.

[0023] Figure 5 It is a schematic diagram of the second partial cross-section stereoscopic structure of the clamping mechanism and the flipping mechanism in the present invention.

[0024] Figure 6 It is a schematic diagram of the partially cutaway three-dimensional structure of two parts of the circular support seat in the present invention.

[0025] In the figure: 1, support plate; 2, base; 3, clamping mechanism; 31, semicircular slide; 32, circular support seat 1; 33, circular support seat 2; 34, auxiliary support plate; 35, elastic part 1; 351, gear ring 1; 352, forward and reverse motor 1; 353, rectangular avoidance groove; 354, incomplete gear; 355, support slide bar 1; 36, elastic part 2; 361, support slide bar 2; 37, clamping part; 371, clamping plate 1; 372, clamping plate 2; 373, ball bearing; 38, guide arc hole; 40, rectangular avoidance opening; 41, Guide arc groove; 42, support rod; 5, flip mechanism; 51, circular cover plate; 52, flip part; 521, gear ring 2; 522, servo motor; 523, transmission gear; 53, auxiliary limiting part; 531, connecting plate; 532, waist-shaped limiting hole; 533, circular baffle; 534, circular mounting plate; 6, reciprocating material extraction mechanism; 61, rectangular through hole; 62, reciprocating material extraction part; 621, sliding seat; 622, arc-shaped sliding hole; 623, support plate; 624, forward and reverse motor 2; 625, lead screw; 7, manipulator mounting base plate. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0027] See also Figure 1 and Figure 3 An H-shaped steel structure welding fixture comprises two left and right supporting plates 1 with circular openings in the middle, a base 2 is installed between the left and right supporting plates 1, a clamping mechanism 3 is arranged on the upper end of the base 2, a reciprocating material pulling mechanism 6 is arranged on the left side of the clamping mechanism 3 on the base 2, and a flipping mechanism 5 is arranged on the left and right supporting plates 1 corresponding to the clamping mechanism 3.

[0028] See also Figure 1-Figure 3The clamping mechanism 3 includes a semicircular chute 31 provided in the middle of the upper end of the base 2, and circular support seats 1 32 are provided on both sides of the semicircular chute 31. A circular support seat 2 33 is provided on the right side of the left circular support seat 1 32, and an auxiliary support plate 34 is provided on the right side of the circular support seat 2 33. A plurality of circular support seats 2 33 are evenly provided between the auxiliary support plate 34 and the right circular support seat 1 32. Elastic parts 1 35 and elastic parts 2 36 are provided on the left and right circular support seats 1 32, respectively, and clamping parts 37 are provided on both ends of the plurality of circular support seats 2 33. The reciprocating material extraction mechanism 6 includes a rectangular through hole 61 provided on the left side of the lower end of the base 2, and the rectangular through hole 61 is connected to the semicircular chute 31. A reciprocating material extraction part 62 is provided on the base 2 corresponding to the left circular support seat 2 33. The flipping mechanism 5 includes circular cover plates 51 installed through the left and right ends of the base 2, and the opposite ends of the left and right circular cover plates 51 are respectively rotatably installed on the corresponding supporting vertical plates 1, and the circular cover plates 51 are respectively rotatably mounted on the corresponding circular supporting seats 32. The left and right supporting vertical plates 1 are corresponding to the left and right circular cover plates 51. A flipping part 52 is commonly provided on the left and right supporting vertical plates 1, and auxiliary limiting parts 53 are provided in the left and right circular cover plates 51.

[0029] See also Figure 2 , Figure 4 and Figure 5 The clamping mechanism 3 also includes a plurality of guide arc holes 38 uniformly distributed on the left and right circular support seats 1 32 and the plurality of circular support seats 2 33. A rectangular avoidance opening 40 is provided in the middle of the left and right circular support seats 1 32, the auxiliary support plate 34 and the plurality of circular support seats 2 33. A plurality of guide arc grooves 41 are provided at the left end of the auxiliary support plate 34 corresponding to the positions of the plurality of guide arc holes 38. A plurality of support rods uniformly distributed on the circumference are respectively installed at the opposite ends of the left and right circular support seats 1 32. 42, the multiple support rods 42 corresponding to the left circular support seat 1 32 all slide through the left circular support seat 2 33 and are fixedly connected to the auxiliary support plate 34, the multiple support rods 42 corresponding to the right circular support seat 1 32 all penetrate the right multiple circular support seats 2 33, the left and right two annular plates, the auxiliary support plate 34 and the outer walls of the right multiple circular support seats 2 33 are all rotatably connected to the inner wall of the semicircular slide groove 31, and the outer wall of the left circular support seat 2 33 is movably fitted on the inner wall of the semicircular slide groove 31.

[0030] See also Figure 4-Figure 6The clamping portion 37 includes two front and rear clamping plates 371 disposed on multiple circular support seats 2 33, and two upper and lower clamping plates 2 372 are also disposed on multiple circular support seats 2 33. One end of the front and rear clamping plates 1 371 and the upper and lower clamping plates 2 372 close to the corresponding circular support seat 2 33 are movably fitted on the corresponding circular support seat 2 33, and multiple balls 373 are installed on the clamping end surfaces of the multiple clamping plates 1 371 and the multiple clamping plates 2 372 on the corresponding right side multiple circular support seats 2 33.

[0031] First, the two parallel flanges and one web are transported to the left from the circular opening on the right supporting vertical plate 1 by an external loading device, until the left ends of the two flanges and the web pass through the rectangular avoidance opening 40 in the middle of the multiple circular support seats 33 on the right side, and stop at the right side of the circular support seat 33 on the left side. It should be noted that the rectangular avoidance opening 40 is larger than the height and width of the two flanges and the web, and there is enough space for the two flanges and the web to flip freely in the rectangular avoidance opening 40. The two clamping plates 1 371 and the upper and lower clamping plates 2 372 are initially in a loose state, and an H-shaped channel will be formed in the middle of the corresponding front and rear two clamping plates 1 371 and the upper and lower clamping plates 2 372, which is convenient for auxiliary material discharge support for the two parallel flanges and one web. At this time, the two flanges and one web are located in the H-shaped limit groove, and the multiple balls 373 in contact with the two flanges and one web all roll in contact with the two parallel flanges and one web.

[0032] See also Figure 2 , Figure 4 and Figure 6 The elastic part 35 includes a gear ring 351 installed on the left end of the left circular support seat 32, and a forward and reverse motor 352 is installed on the right end of the left circular cover plate 51 through the motor seat. A rectangular avoidance groove 353 is symmetrically provided at the upper end of the base 2 corresponding to the position of the left forward and reverse motor 352. The output shaft of the forward and reverse motor 352 rotates and passes through the corresponding circular cover plate 51, and is fixedly connected with an incomplete gear 354, which is meshed with the corresponding gear ring 351. A plurality of support slide bars 355 are slidably installed in the plurality of guide arc holes 38 on the left circular support seat 32 and the left circular support seat 2 33. The plurality of support slide bars 355 respectively slide through the plurality of clamping plates 1 371 and the plurality of clamping plates 2 372 on the corresponding left circular support seat 2 33, and the right ends of the plurality of support slide bars 355 are respectively slidably connected in the corresponding plurality of guide arc grooves 41.

[0033] See also Figure 2 and Figure 4-Figure 6The elastic part 2 36 includes a gear ring 351 installed on the right end of the right circular support seat 32, and a forward and reverse motor 352 is installed on the left end of the right circular cover plate 51 through the motor seat. A rectangular avoidance groove 353 is symmetrically provided at the upper end of the base 2 corresponding to the position of the right forward and reverse motor 352. The output shaft of the forward and reverse motor 352 rotates and passes through the corresponding circular cover plate 51, and is fixedly connected with an incomplete gear 354. The incomplete gear 354 is meshed with the corresponding gear ring 351. A plurality of support slide bars 361 are slidably installed in the plurality of guide arc holes 38 on the right circular support seat 32 and the right circular support seat 2 33, and the plurality of support slide bars 361 respectively slide through the plurality of clamping plates 1 371 and the plurality of clamping plates 2 372 on the corresponding plurality of circular support seats 2 33 on the right side.

[0034] See also Figure 1 and Figure 4 The auxiliary limiting portion 53 includes a connecting plate 531 installed on the inner wall of the left and right circular cover plates 51 away from the corresponding gear ring 1 351, a circular mounting plate 534 is installed at the front end of the left and right connecting plates 531, and a rectangular avoidance opening 40 is also opened in the middle of the left and right circular mounting plates 534. A plurality of waist-shaped limiting holes 532 uniformly distributed in a circle are opened on the left and right circular mounting plates 534 at positions corresponding to the plurality of supporting slide bars 1 355 and the plurality of supporting slide bars 2 361. The opposite ends of the plurality of supporting slide bars 1 355 and the plurality of supporting slide bars 2 361 are respectively slidably connected in the corresponding waist-shaped limiting holes 532, and the opposite ends of the plurality of supporting slide bars 1 355 and the plurality of supporting slide bars 2 361 are installed with circular baffles 533.

[0035] See also Figure 1 , Figure 3 and Figure 4 The front and rear sides of the upper end of the base 2 are both equipped with a manipulator mounting base plate 7, and the front and rear manipulator mounting base plates 7 are both located between the auxiliary support plate 34 and the left circular support seat 2 33.

[0036] When the two flanges and the left ends of the web pass through the rectangular avoidance opening 40 in the middle of the multiple circular support seats 2 33 on the right side and stop at the right side position of the circular support seat 2 33 on the left side, the corresponding incomplete gear 354 and the gear ring 1 351 are controlled by the right forward and reverse motor 1 352 to drive the right circular support seat 2 33 to rotate, and the right circular support seat 2 33 drives the remaining circular support seats 2 33 on the right side to rotate synchronously through the corresponding multiple support rods 42. Since the right ends of the multiple support slide bars 2 361 are respectively slidably connected to the corresponding waist-shaped limiting holes 532, at this time, the multiple support slide bars 2 361 will respectively slide toward the multiple guide arc holes 38 close to the corresponding circular support seat 1 32 and one end of the center of the circular support seat 2 33, and the multiple support slide bars 2 361 will be The plurality of corresponding clamping plates 1 371 and the plurality of clamping plates 2 372 are driven to perform coaxial tightening movement, thereby achieving the effect of the plurality of clamping plates 1 371 and the plurality of clamping plates 2 372 coaxially clamping the two flanges and the web together. At this time, the plurality of ball bearings 373 will all roll and contact the two flanges and the web, and at the same time, the front and rear two automatic welding manipulators are controlled to weld the upper connection points of the two flanges and the web at the right side position of the left circular support seat 2 33, until all the connection points here are welded. The clamping mechanism 3 can perform multi-point coaxial clamping and support on the two flanges and the web, and the clamping position is accurate, thereby avoiding the problem that conventional welding fixtures are difficult to clamp the two flanges and the web and the clamping is unstable, thereby resulting in low welding efficiency and welding quality.

[0037] See also Figure 3 The reciprocating material-moving portion 62 includes a sliding seat 621 slidably installed in the rectangular through hole 61. The upper end of the sliding seat 621 is an arc-shaped structure, and an arc-shaped sliding hole 622 is provided in the middle part of the upper end of the sliding seat 621 corresponding to the left circular support seat 33. The outer wall of the circular support seat 33 is slidably connected in the arc-shaped sliding hole 622. A support plate 623 is installed at the left end of the rectangular through hole 61 corresponding to the lower end of the base 2. A forward and reverse motor 624 is installed at the right end of the rectangular through hole 61 corresponding to the lower end of the base 2 through a motor seat. The output shaft of the forward and reverse motor 624 is fixedly connected to a lead screw 625. The lead screw 625 is threadedly connected to the sliding seat 621 and fixedly connected to the support plate 623.

[0038] After the welding of the upper connection points is completed, the lead screw 625 is controlled to rotate by the forward and reverse motor 2 624, and the lead screw 625 drives the left circular support seat 2 33 to move rightward to the rightmost end of the rectangular through hole 61 through the sliding seat 621. Then, the left forward and reverse motor 1 352 controls the corresponding incomplete gear 354 and the gear ring 1 351 to drive the left circular support seat 2 33 to rotate. The left circular support seat 2 33 drives the remaining circular support seats 2 33 on the left to rotate synchronously through the corresponding multiple support rods 42. Since the right ends of the multiple support slide rods 2 361 are respectively The plurality of support slide bars 361 are respectively connected to the corresponding waist-shaped limit holes 532. At this time, the plurality of support slide bars 361 will respectively slide toward the plurality of guide arc holes 38 close to the corresponding circular support seat 1 32 and the central end of the circular support seat 2 33. The plurality of support slide bars 361 will respectively drive the corresponding plurality of clamping plates 1 371 and the plurality of clamping plates 2 372 to perform coaxial tightening movements, thereby achieving the effect of the plurality of clamping plates 1 371 and the plurality of clamping plates 2 372 coaxially clamping the two flanges and the web. The forward and reverse motor 2 624 is used again to control the lead screw 625 to rotate in the opposite direction. The lead screw 625 is driven by the sliding seat 621 to The left circular support seat 2 33 moves to the left to the leftmost end of the rectangular through hole 61, and then the left forward and reverse motor 1 352 controls the corresponding incomplete gear 354 and the gear ring 1 351 to drive the left circular support seat 2 33 to rotate in the opposite direction. The left circular support seat 2 33 drives the other left circular support seats 2 33 to rotate in the opposite direction synchronously through the corresponding multiple support rods 42. At this time, the multiple support slide bars 2 361 will slide toward the multiple guide arc holes 38 close to the corresponding circular support seat 1 32 and one end of the edge of the circular support seat 2 33. 61 will respectively drive the corresponding multiple clamping plates 1 371 and multiple clamping plates 2 372 to perform coaxial loosening movements, thereby achieving the effect of coaxially loosening the two flanges and the web by the multiple clamping plates 1 371 and multiple clamping plates 2 372. When the two flanges and the web move to the left, the front and rear two automatic welding manipulators are controlled again to continuously weld the unwelded connection points of the upper parts of the two flanges and the web, thereby achieving the effect of welding the upper parts of the two flanges and the web while moving to the left. Repeat this operation until all the required welding points on the upper parts of the two flanges and the web are welded.

[0039] When all the welding points required on the upper sides of the two flanges and the web are welded, the left circular support seat 2 33 is located at the leftmost end of the rectangular through hole 61, the left multiple clamping plates 1 371 and the multiple clamping plates 2 372 are in a coaxial clamping state, and the right ends of the two flanges and the web are away from the right multiple circular support seats 2 33, and the left ends of the two flanges and the web protrude out of the circular opening on the left supporting vertical plate 1. It should be noted that if the two flanges and webs to be welded are too long, an external support seat needs to be provided on the left side of the base 2, so that the two flanges can be welded at this time. The left end of the flange and the web are used for auxiliary support. The forward and reverse motor 2 624 is used to control the screw 625 to rotate. The screw 625 drives the left circular support seat 2 33 to move to the right to the rightmost end of the rectangular through hole 61 through the sliding seat 621. Then, the left forward and reverse motor 1 352 controls the corresponding incomplete gear 354 and the gear ring 1 351 to drive the left multiple clamping plates 1 371 and the multiple clamping plates 2 372 to become coaxial loosened state, and the forward and reverse motor 2 624 is used again to control the screw 625 to move in the opposite direction. After the lead screw 625 drives the left circular support seat 2 33 to move to the left to the leftmost position of the rectangular through hole 61 through the sliding seat 621, the corresponding incomplete gear 354 and the gear ring 1 351 can be controlled by the left forward and reverse motor 1 352 to drive the left multiple clamping plates 1 371 and multiple clamping plates 2 372 to become a coaxial clamping state, and this operation is repeated until the two flanges and the web are located in the middle position of the base 2 and are clamped by the multiple clamping plates 1 371 and multiple clamping plates 2 372 on the left and right sides at the same time. During the support, the two flanges and the right end of the web will be clamped again by multiple clamping plates 1 371 and multiple clamping plates 2 372 on the right side, and the multiple balls 373 will roll and contact the two flanges and the web again. The clamping mechanism 3 cooperates with the reciprocating pulling mechanism 6, and adopts the coordination of the movable clamping point on the left side and the multiple fixed clamping points on the right side, and intermittently drives the two flanges and the web to move to the left or right, so as to realize continuous welding of the upper or lower side of the two flanges and the web, and effectively improve the welding efficiency of the two flanges and the web.

[0040] See also Figure 1 , Figure 2 and Figure 4 The flip part 52 includes a gear ring 2 521 installed on the inner wall of the left and right circular cover plates 51 close to the corresponding gear ring 1 351. Servo motors 522 are installed on the lower sides of the opposite ends of the left and right supporting vertical plates 1 through motor seats. The output shafts of the left and right servo motors 522 rotate and penetrate the corresponding supporting vertical plates 1 respectively, and are fixedly connected with transmission gears 523. The left and right transmission gears 523 are respectively meshed with the corresponding gear ring 2 521.

[0041] When the two flanges and the web are located in the middle of the base 2 and are clamped and supported by the multiple clamping plates 1 371 and the multiple clamping plates 2 372 on the left and right sides, the left and right servo motors 522 respectively control the corresponding transmission gears 523 and the gear ring 2 521 to drive the left and right circular cover plates 51 to rotate 180 degrees synchronously. Since the left and right forward and reverse motors 1 352 are installed on the corresponding circular cover plates 51 through the motor base, and the incomplete gears 354 on the left and right sides are in meshing state with the gear ring 1 351, the left and right circular cover plates 51 can drive the left and right circular support seats 1 32 to rotate 180 degrees synchronously. The left and right circular support seats 1 32 are respectively driven by the corresponding gears 523 and the gear ring 2 521. The corresponding multiple support rods 42 drive the corresponding multiple circular support seats 2 33 and the auxiliary support plate 34 to rotate 180 degrees synchronously. During this period, the left and right connecting plates 531 will respectively drive the corresponding circular mounting plates 534 to rotate 180 degrees synchronously. At this time, the multiple support slide bars 1 355 and the multiple support slide bars 2 361 will respectively drive the corresponding multiple splints 1 371 and the multiple splints 2 372 to rotate 180 degrees synchronously. The multiple splints 1 371 and the multiple splints 2 372 jointly drive the two flanges and the web to rotate 180 degrees synchronously. Repeat the above-mentioned continuous welding steps of the upper connection points of the two flanges and the web to complete the welding work of all the connection points on the lower side of the two flanges and the web to obtain welded H-shaped steel.

[0042] When all the connection points on the lower side of the two flanges and the web are welded, the left circular support seat 2 33 is located at the leftmost end of the rectangular through hole 61, and the multiple clamping plates 1 371 and the multiple clamping plates 2 372 on the left are in a coaxial clamping state. The external material receiving equipment supports and takes out the welded H-shaped steel after welding, and controls the corresponding incomplete gear 354 and the gear ring 1 351 through the left forward and reverse motor 1 352 to drive the multiple clamping plates 1 371 and the multiple clamping plates 2 372 on the left to become a coaxial loose state, and finally the welded H-shaped steel after welding is taken out by the external material receiving equipment, and the above operation can be repeated to repeat the welding of the two flanges and The web is welded, and the clamping mechanism 3, the reciprocating material extraction mechanism 6 and the flipping mechanism 5 cooperate with each other. The movable clamping point on the left side and the multiple fixed clamping points on the right side are adopted to carry out multi-point coaxial clamping support for the two flanges and the web. The material feeding and discharging are convenient, the clamping is accurate and stable, and the two flanges and the web are intermittently driven to move to the left or right. After the continuous welding of the two flanges and one side of the web is completed, it can also be driven to flip 180 degrees by multiple clamping plates 1 371 and multiple clamping plates 2 372, so as to achieve the effect of continuing to weld the connection points on the other side of the two flanges and the web, and effectively improve the welding efficiency and welding quality of the two flanges and the web.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms: "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An H-shaped steel structure welding fixture, comprising two left and right support plates (1) with circular openings in the middle, a base (2) being installed between the left and right support plates (1), characterized in that: The upper end of the base (2) is provided with a clamping mechanism (3), a reciprocating material extraction mechanism (6) is provided on the base (2) corresponding to the left side of the clamping mechanism (3), and a turning mechanism (5) is provided on the left and right supporting plates (1) corresponding to the clamping mechanism (3); The clamping mechanism (3) comprises a semicircular slide groove (31) provided in the middle of the upper end of the base (2), a circular support seat 1 (32) being provided on both sides of the semicircular slide groove (31), a circular support seat 2 (33) being provided on the right side of the left circular support seat 1 (32), an auxiliary support plate (34) being provided on the right side of the circular support seat 2 (33), a plurality of circular support seats 2 (33) being evenly provided between the auxiliary support plate (34) and the right circular support seat 1 (32), an elastic portion 1 (35) and an elastic portion 2 (36) being provided on the left and right circular support seats 1 (32), respectively, and a clamping portion (37) being provided on both ends of the plurality of circular support seats 2 (33); The reciprocating material-pulling mechanism (6) comprises a rectangular through hole (61) opened on the left side of the lower end of the base (2), the rectangular through hole (61) is connected to the semicircular slide groove (31), and a reciprocating material-pulling portion (62) is provided on the base (2) corresponding to the left circular support seat 2 (33); The flip mechanism (5) comprises circular cover plates (51) which are installed through the left and right ends of the base (2); the two circular cover plates (51) are rotatably installed on the corresponding supporting upright plates (1) at their opposite ends, and the circular cover plates (51) are rotatably sleeved on the corresponding circular supporting seat (32) respectively; the left and right supporting upright plates (1) are provided with a flipping portion (52) corresponding to the two circular cover plates (51); and the two circular cover plates (51) are provided with auxiliary limiting portions (53) in their interiors; The clamping mechanism (3) further comprises a plurality of guide arc holes (38) uniformly distributed in a circumference on the two left and right circular support seats (32) and the plurality of circular support seats (33); a rectangular avoidance opening (40) is provided in the middle of the two left and right circular support seats (32), the auxiliary support plate (34) and the plurality of circular support seats (33); a plurality of guide arc grooves (41) are provided at the left end of the auxiliary support plate (34) at positions corresponding to the plurality of guide arc holes (38); and a plurality of support rods (41) uniformly distributed in a circumference are respectively installed at opposite ends of the two left and right circular support seats (32). 2), the plurality of support rods (42) corresponding to the left circular support seat 1 (32) are all slidably penetrated on the left circular support seat 2 (33), and are fixedly connected to the auxiliary support plate (34), the plurality of support rods (42) corresponding to the right circular support seat 1 (32) are all penetrated on the right circular support seat 2 (33), the left and right two annular plates, the auxiliary support plate (34) and the outer walls of the right circular support seat 2 (33) are all rotatably connected to the inner wall of the semicircular slide groove (31), and the outer wall of the left circular support seat 2 (33) is movably fitted on the inner wall of the semicircular slide groove (31); The elastic part (35) comprises a gear ring (351) mounted on the left end of the left circular support seat (32); a forward and reverse motor (352) is mounted on the right end of the left circular cover plate (51) through a motor seat; a rectangular avoidance groove (353) is symmetrically provided at the upper end of the base (2) corresponding to the position of the left forward and reverse motor (352); the output shaft of the forward and reverse motor (352) rotates and passes through the corresponding circular cover plate (51) and is fixedly connected to an incomplete gear (354); the incomplete gear (354) 54) meshes with the corresponding gear ring 1 (351), a plurality of support slide bars 1 (355) are slidably installed in the plurality of guide arc holes (38) on the left circular support seat 1 (32) and the left circular support seat 2 (33), the plurality of support slide bars 1 (355) respectively slide through the plurality of clamping plates 1 (371) and the plurality of clamping plates 2 (372) on the corresponding left circular support seat 2 (33), and the right ends of the plurality of support slide bars 1 (355) are respectively slidably connected in the corresponding plurality of guide arc grooves (41); The second elastic part (36) comprises a gear ring (351) installed at the right end of the right circular support seat (32), a forward and reverse motor (352) is installed at the left end of the right circular cover plate (51) through the motor seat, and a rectangular avoidance groove (353) is symmetrically provided at the upper end of the base (2) corresponding to the position of the right forward and reverse motor (352), the output shaft of the forward and reverse motor (352) rotates and passes through the corresponding circular cover plate (51), and is fixedly connected with an incomplete gear (354), the incomplete gear (354) is meshed with the corresponding gear ring (351), and a plurality of support slide bars (361) are slidably installed in a plurality of guide arc holes (38) on the right circular support seat (32) and the right circular support seat (33), and the plurality of support slide bars (361) respectively slide through a plurality of clamping plates (371) and a plurality of clamping plates (372) on the corresponding right plurality of circular support seats (33); The reciprocating material-moving part (62) comprises a sliding seat (621) slidably mounted in the rectangular through hole (61); the upper end of the sliding seat (621) is an arc-shaped structure; and an arc-shaped sliding hole (622) is provided in the middle of the upper end of the sliding seat (621) corresponding to the left circular support seat 2 (33); the outer wall of the circular support seat 2 (33) is slidably connected in the arc-shaped sliding hole (622); a support plate (623) is mounted on the left end of the lower end of the base (2) corresponding to the rectangular through hole (61); a forward and reverse motor 2 (624) is mounted on the right end of the lower end of the base (2) corresponding to the rectangular through hole (61) through a motor seat; the output shaft of the forward and reverse motor 2 (624) is fixedly connected to a lead screw (625); the lead screw (625) is threadedly connected to the sliding seat (621) and fixedly connected to the support plate (623); The flip portion (52) comprises a second gear ring (521) mounted on the inner wall of the left and right circular cover plates (51) close to the corresponding first gear ring (351), and servo motors (522) are respectively mounted on the lower sides of the opposite ends of the left and right support vertical plates (1) through motor seats, and the output shafts of the left and right servo motors (522) are respectively rotated and penetrated through the corresponding support vertical plates (1) and are fixedly connected to transmission gears (523), and the left and right transmission gears (523) are respectively meshed with the corresponding second gear ring (521); The auxiliary limiting portion (53) comprises a connecting plate (531) installed on the inner wall of the left and right circular cover plates (51) away from the corresponding tooth ring one (351), a circular mounting plate (534) is installed at the front end of the left and right connecting plates (531), and a rectangular avoidance opening (40) is also opened in the middle of the left and right circular mounting plates (534). The left and right circular mounting plates (534) are provided with a plurality of waist-shaped limiting holes (532) evenly distributed in a circumference at positions corresponding to the plurality of supporting slide bars one (355) and the plurality of supporting slide bars two (361), and the opposite ends of the plurality of supporting slide bars one (355) and the plurality of supporting slide bars two (361) are respectively slidably connected in the corresponding waist-shaped limiting holes (532), and the opposite ends of the plurality of supporting slide bars one (355) and the plurality of supporting slide bars two (361) are respectively installed with a circular baffle plate (533).

2. The H-shaped steel structure welding fixture according to claim 1 is characterized in that: The clamping portion (37) includes two front and rear clamping plates (371) each provided on a plurality of circular support seats (33), and two upper and lower clamping plates (372) are also provided on the plurality of circular support seats (33). One end of the front and rear clamping plates (371) and the upper and lower clamping plates (372) close to the corresponding circular support seat (33) are movably fitted on the corresponding circular support seat (33), and a plurality of balls (373) are installed on the clamping end surfaces of the plurality of clamping plates (371) and the plurality of clamping plates (372) on the corresponding right side plurality of circular support seats (33).

3. The H-shaped steel structure welding fixture according to claim 1 is characterized in that: A manipulator mounting base plate (7) is installed on both the front and rear sides of the upper end of the base (2), and the two front and rear manipulator mounting base plates (7) are both located between the auxiliary support plate (34) and the left circular support seat (33).

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