CN213531313U

CN213531313U - Assembling and spot welding device for steel pipe bundle

Info

Publication number: CN213531313U
Application number: CN202021721491.6U
Authority: CN
Inventors: 刘杰
Original assignee: Hubei Lvjian Hangxiao Steel Structure Co ltd
Current assignee: Hubei Lvjian Hangxiao Steel Structure Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-25
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses an assembly and spot welding device of steel-pipe bundle belongs to steel-pipe bundle production facility technical field. The automatic welding machine comprises a frame, a conveying roller way arranged on the frame in the front-back direction, a rear suspension type manipulator at the rear end of the frame and capable of moving up and down, a front suspension type manipulator at the front end of the frame and capable of moving up and down, a gantry type welding frame arranged on the frame in the front-back direction in a sliding mode and positioned above the conveying roller way, a top pressing structure capable of moving up and down on the gantry type welding frame, a lateral pressing structure arranged on the left side and the right side of a steel pipe bundle on the gantry type welding frame, and a baffle plate and two spot welding structures arranged on the left side and the right side of the gantry type welding frame, wherein the baffle plate is passed through by the steel. The top pressing structure comprises a top guide roller, a fixed small side roller, a movable small side roller and a top driving cylinder. The lateral pressing structure comprises a fixed large side roller, a movable large side roller and a lateral driving cylinder. The method has the advantages of high processing speed, capability of adapting to steel pipe bundle units of various specifications and the like.

Description

Assembling and spot welding device for steel pipe bundle

Technical Field

The utility model belongs to the technical field of the steel-pipe bundle production facility, in particular to assembly and spot welding device of steel-pipe bundle.

Background

The steel tube bundle residential product has certain advantages in the construction process and has wide application prospect. The steel pipe bundle is generally formed by splicing a plurality of steel pipe bundle units, and is generally spliced to form a straight line, and then spliced to obtain other shapes such as an L shape, a T shape and the like.

The weight of a single steel pipe bundle unit is usually large, and the steel pipe bundle unit is assembled manually, so that the workload is very large. In the prior art, automatic assembly is usually performed through machinery, for example, a patent with the application number of CN201420613777.0 discloses an automatic assembly welding device for a linear steel tube bundle, which includes a first welding workbench, a movable suspension manipulator, a fixed suspension manipulator, a suspension manipulator moving trolley, a first moving trolley gantry, a first gantry type welding gun rack, a first rollgang and a first welding gun, wherein the first gantry type welding gun rack and the first rollgang are respectively installed and fixed on the first welding workbench, and the first gantry type welding gun rack can longitudinally move along a guide rail on the first welding workbench; the first moving trolley portal is fixedly arranged on the first welding workbench, and the suspension manipulator moving trolley is arranged on the first moving trolley portal and can move longitudinally along the first moving trolley portal; the movable type suspension manipulator is fixedly arranged on the suspension manipulator moving trolley, the fixed type suspension manipulator is fixedly arranged on the first moving trolley gantry, the movable type suspension manipulator can move along the first moving trolley gantry in a longitudinal fixed length mode, and the movable type suspension manipulator and the fixed type suspension manipulator clamp a linear steel pipe bundle structural member together; the first welding gun is arranged on the first gantry type welding gun rack and can move along the first gantry type welding gun rack in the horizontal direction, and the first welding gun is used for welding a welding seam formed at the contact position of the upper U-shaped steel pipe and the lower U-shaped steel pipe.

The applicant finds the following problems when assembling the steel pipe bundle by adopting the structure:

(1) during assembly, spot welding is good, and welding seams are welded at the back;

(2) during spot welding, the working efficiency of one welding structure is low;

(3) can not adapt to products with various specifications.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an embodiment of the present invention provides an assembling and spot welding device for steel tube bundles, wherein a plurality of steel tube bundle units are assembled to obtain a linear structure, and two adjacent steel tube bundle units are spot-welded in an assembling process; after the treatment is finished, welding by special welding equipment; the processing speed is high, and the steel tube bundle unit can adapt to various specifications. The technical scheme is as follows:

the embodiment of the utility model provides an assembly and spot welding device of steel-pipe bundle, the device includes frame 1, rollgang 2 that sets up on frame 1 and along the fore-and-aft direction, frame 1 rear end and the back suspension formula manipulator 6 that can up-and-down motion, frame 1 front end and the front suspension formula manipulator 7 that can up-and-down motion, along the fore-and-aft direction slip locate frame 1 on and be located rollgang 2 top planer-type welding frame 3, planer-type welding frame 3 on and can up-and-down motion top compact structure 8, planer-type welding frame 3 on and be located the side compact structure 10 of steel-pipe bundle 9 left and right sides, the baffle 5 that the rear end of rollgang 2 and can block steel-pipe bundle unit 4 to pass through and two structures of planer-type welding frame 3 left and right sides; when the baffle 5 is turned upwards or moves upwards, the steel pipe bundle unit 4 can be prevented from moving backwards, otherwise, the steel pipe bundle unit 4 can pass through; the front suspension type manipulator 7 and the rear suspension type manipulator 6 are arranged right above the steel pipe bundle 9 and can respectively grab the front end and the rear end of the top of the steel pipe bundle 9 and enable the steel pipe bundle 9 to move up and down, the rear suspension type manipulator 6 is arranged right above the baffle 5, and the front suspension type manipulator 7 can move back and forth; the number of the gantry type welding racks 3 is at least 2, and the gantry type welding racks 3 are arranged at intervals in the front and back direction and can move in the front and back direction; the two spot welding structures are arranged in bilateral symmetry and are respectively positioned at the left side and the right side of the steel pipe bundle 9, each spot welding structure comprises two spot welding guns 11 arranged side by side up and down, and the two spot welding guns 11 respectively face the joints of the three steel pipe bundle units 4 at the lowest part; the spot welding gun 11 is arranged along the left-right direction, can be arranged on a vertical beam of the gantry type welding frame 3 in an up-down adjusting mode, and can be driven by the welding cylinder 12 to move along the left-right direction; the top pressing structure 8 is positioned right above the steel pipe bundle 9 and comprises a top guide roller 13 which is arranged in the left-right direction and can be pressed against the top of the steel pipe bundle 9, a fixed small side roller 14 which is vertically arranged and pressed against the left side or the right side of the steel pipe bundle unit 4 at the top, a movable small side roller 15 which is vertically arranged and pressed against the other side of the steel pipe bundle unit 4 at the top, and a top driving cylinder 16 for driving the movable small side roller 15 to move left and right; the lateral compression structure 10 comprises a fixed large side roller 17 which is vertically arranged and is pressed against the left side or the right side of the steel pipe bundle 9, a movable large side roller 18 which is vertically arranged and is pressed against the other side of the steel pipe bundle 9, and a lateral driving cylinder which drives the movable large side roller 18 to move left and right; the movable small side roller 15 and the movable large side roller 18 are positioned on the same side.

Wherein, the embodiment of the utility model provides an on frame 1 and the left and right sides that is located rollgang 2 all be equipped with walking guide rail 20, walking guide rail 20 sets up along the front-back, the lower extreme of the left and right sides of planer-type welding frame 3 respectively is equipped with a walking dolly, and the walking dolly synchronous drive of both sides and homoenergetic are located on the walking guide rail 20 that corresponds the side along the front-back to sliding.

Further, the embodiment of the present invention provides a rack 21 is provided on the left side or the right side of the frame 1 along the front-back direction, and a rack walking structure cooperating with the rack 21 is provided on the walking trolley on the corresponding side.

Wherein, the embodiment of the utility model provides a front side or rear side of planer-type welding frame 3 are equipped with vertical slide rail 22, to being equipped with two first slides 23 about following on vertical slide rail 22, two first slides 23 set up side by side from top to bottom and respectively be equipped with a spot welding structure on it, first slide 23 corresponds to being equipped with lead screw drive structure 24 between the side with planer-type welding frame 3 and is used for driving first slide 23 up-and-down motion, welding cylinder 12 fixes and is equipped with a spot welding rifle 11 in the outside of first slide 23 and the inner of its telescopic link, spot welding rifle 11 is located on first slide 23 to sliding about along, the vertical setting of lead screw drive structure 24 just is driven by servo motor.

Further, the embodiment of the utility model provides an in frame 1 around both ends and the top that is located planer-type welding frame 3 be equipped with preceding lift portal frame 25 and back lift portal frame 26 respectively, back suspension type manipulator 6 locates and is equipped with first elevation structure on back lift portal frame 26 between it, preceding suspension type manipulator 7 locates on preceding lift portal frame 25 and be equipped with second elevation structure and back-and-forth movement structure between it and make preceding suspension type manipulator 7 can forward and backward motion and up-and-down motion before being equipped with between it, on preceding lift portal frame 25 was located to back-and-forth movement structure ability forward and backward motion ground, second elevation structure can locate on the back-and-forth movement structure with up-and-down motion ground, second elevation structure's lower extreme is located to preceding suspension type manipulator 7.

Specifically, the front suspension type manipulator 7 in the embodiment of the present invention includes a front gripper 27 that opens backward and can slide forward and backward at the lower end of the second lifting structure, and a front driving cylinder 28 that is between the front gripper 27 and the second lifting structure and can drive the front gripper 27 to slide forward and backward; the rear suspension type manipulator 6 comprises a rear gripper 29 which is opened forwards and can slide forwards and backwards at the lower end of the first lifting structure, a rear driving cylinder 30 which is arranged between the rear gripper 29 and the first lifting structure and can drive the rear gripper 29 to slide forwards and backwards, and the front gripper 27 and the rear gripper 29 are U-shaped structures which are arranged forwards and backwards.

Preferably, the number of gantry welding frames 3 in the embodiment of the present invention is 4; 2 gantry type welding frames 3 on the front side are fixed together through front linkage rods 31 in the front-back direction, the distance between the gantry type welding frames is adjustable, and the gantry type welding frames move synchronously; the 2 gantry welding frames 3 on the rear side are fixed together through the front and rear linkage rods 32, the distance between the gantry welding frames is adjustable, and the gantry welding frames move synchronously.

Wherein, the inner sides of two vertical beams of the gantry welding frame 3 in the embodiment of the present invention are respectively provided with a pressing slide rail along the vertical direction, the two pressing slide rails are arranged in bilateral symmetry, and a lifting frame 33 is arranged between the two pressing slide rails, the lifting frame 33 is slidably arranged on the pressing slide rails, and the left and right sides of the lower end of the lifting frame are respectively provided with a fixing plate 34 along the vertical direction, the left and right ends of the top guide roller 13 are arranged on the fixing plate 34 of the corresponding side, the upper end of the fixed small side roller 14 is arranged at the bottom of the fixing plate 34 on the left or right side, the outer side of the fixing plate 34 fixed with the fixed small side roller 14 is provided with a top driving cylinder 16 along the left and right direction, the outer end of the telescopic rod of the top driving cylinder 16 is provided with a first movable plate 35, the outer side of the fixing plate 34 of the other side is provided with a second movable plate 36, the upper end of the movable, the sliding rod 37 can be arranged on the lifting frame 33 in a left-right sliding mode.

Wherein, the fixed large side roller 17 and the movable large side roller 18 in the embodiment of the invention are respectively arranged from the lower part of the steel pipe bundle unit 4 at the bottom to the upper part of the third steel pipe bundle unit 4; the fixed large side roller 17 is arranged on a vertical beam at the corresponding side of the gantry type welding frame 3 through a fixed arm 19; the large movable side roller 18 is arranged at the front end or the rear end of the swing arm 38; the other end of the swing arm 38 is rotatably arranged on a vertical beam at the corresponding side of the gantry type welding rack 3 through a vertically arranged rotating shaft, and a side driving cylinder is arranged between the middle part of the swing arm and the gantry type welding rack 3 along the left-right direction.

Wherein, the embodiment of the utility model provides an in rollgang 2 set up and many conveying rollers of synchronous drive side by side including the front and back.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides an assembly and spot welding device of steel pipe bundle, assemble many steel pipe bundle units and obtain the in-line structure, carry out spot welding to two adjacent steel pipe bundle units in the process of assembling; after the treatment is finished, welding by special welding equipment; the processing speed is high, and the steel tube bundle unit can adapt to various specifications.

Drawings

Fig. 1 is a schematic structural view of an assembling and spot welding device for a steel pipe bundle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a front suspension type manipulator according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a rear suspension type manipulator according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a gantry welding frame provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a combination of a top compression structure, a lateral compression structure and a steel pipe bundle provided by an embodiment of the present invention.

In the figure: the device comprises a frame 1, a conveying roller way 2, a gantry type welding frame 3, a steel tube bundle unit 4, a baffle 5, a rear suspension type manipulator 6, a front suspension type manipulator 7, a top compaction structure 8, a steel tube bundle 9, a lateral compaction structure 10, a spot welding gun 11, a welding cylinder 12, a top guide roller 13, a small fixed side roller 14, a small movable side roller 15, a top drive cylinder 16, a large fixed side roller 17, a large movable side roller 18, a fixed arm 19, a walking guide rail 20, a rack 21, a vertical sliding rail 22, a first sliding seat 23, a lead screw drive structure 24, a front lifting gantry 25, a rear lifting gantry 26, a front gripper 27, a front drive cylinder 28, a rear gripper 29, a rear drive cylinder 30, a front linkage rod 31, a rear linkage rod 32, a lifting crane 33, a fixed plate 34, a first movable plate 35, a second movable plate 36, a sliding rod 37 and a swing arm 38.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-5, the embodiment of the utility model provides an assemble and spot welding device of steel-pipe bundle, the device includes frame 1 (set up along the longitudinal direction), just along the rollgang 2 that sets up around on the frame 1, but frame 1 rear end and the back suspended manipulator 6 of up-and-down motion, but frame 1 front end and the front suspended manipulator 7 of up-and-down motion, along the longitudinal direction slip locate frame 1 on and be located the portal welding frame 3 (perpendicular with rollgang 2) of rollgang 2 top, the perpendicular roof beam of its both sides is located the left and right sides of rollgang 2 respectively, on the portal welding frame 3 and the top compact structure 8 that can up-and-down motion (be used for compressing tightly the top of steel-pipe bundle 9), lateral compact structure 10 (be used for compressing tightly the left and right sides of steel-pipe bundle 9) that just is located the steel-pipe bundle 9 left and right sides on the portal welding frame 3, A baffle 5 at the rear end of the rollgang 2 and capable of blocking the steel tube bundle units 4 from passing through (for positioning the steel tube bundle units 4 at the bottom and further positioning the whole steel tube bundle 9 (with the rear ends flush)), two spot welding structures at the left and right sides of the gantry type welding frame 3 (for fixing the two adjacent steel tube bundle units 4 together), and the like. The baffle 5 upwards overturns (the baffle 5 is arranged on the frame 1 through the rotation of a left-right rotating shaft and driven by a swing arm through a cylinder, and is preferred) or can stop the steel pipe bundle unit 4 from backwards moving (if overturning to the upper part of the conveying roller way 2) when moving upwards (driven by a vertically arranged cylinder), otherwise, the steel pipe bundle unit 4 passes (if overturning to the lower part of the conveying roller way 2). The front suspension type manipulator 7 and the rear suspension type manipulator 6 are arranged right above the steel pipe bundle 9, can respectively grab the front end and the rear end of the top of the steel pipe bundle 9 (the front end and the rear end of the topmost steel pipe bundle unit 4) and can enable the steel pipe bundle 9 to move up and down, the rear suspension type manipulator 6 is located right above the baffle 5, and the front suspension type manipulator 7 can move forward and backward. The number of the gantry type welding frames 3 is at least 2 (4 in the embodiment, one gantry type welding frame is arranged in a range of 3-6 meters), and the gantry type welding frames 3 are arranged at intervals in the front and back direction and can move back and forth. The two spot welding structures are arranged in bilateral symmetry and are respectively located on the left side and the right side of the steel pipe bundle 9, each spot welding structure comprises two spot welding guns 11 arranged side by side from top to bottom, and the two spot welding guns 11 respectively face the joints (welding seams) of the three steel pipe bundle units 4 at the bottom. The spot welding gun 11 is arranged in the left-right direction and faces the welding seam, and can be arranged on a vertical beam of the gantry type welding frame 3 in a vertically adjustable mode (so as to be suitable for steel pipe bundle units 4 of different specifications), and can be driven by the welding cylinder 12 to move in the left-right direction (towards the welding seam during spot welding, and away from the welding seam after spot welding is completed). The top pressing structure 8 is positioned right above the steel pipe bundle 9 and comprises a top guide roller 13 which is arranged in the left-right direction and can be pressed against the top of the steel pipe bundle 9 (the topmost steel pipe bundle unit 4), a fixed small side roller 14 which is vertically arranged and pressed against the left side or the right side of the steel pipe bundle unit 4 at the top, a movable small side roller 15 which is vertically arranged and pressed against the other side (the right side or the left side) of the steel pipe bundle unit 4 at the top, a top driving cylinder 16 for driving the movable small side roller 15 to move left and right, and the like; the lateral compression structure 10 comprises a fixed large side roller 17 (the diameter of which is larger than that of the fixed small side roller 14 and the length of which is longer than that of the fixed small side roller 14) which is vertically arranged and pressed against the left side or the right side of the steel pipe bundle 9, a movable large side roller 18 which is vertically arranged and pressed against the other side of the steel pipe bundle 9, a lateral driving cylinder which drives the movable large side roller 18 to move left and right, and the like; the small moving side roller 15 and the large moving side roller 18 are located on the same side, and the small fixed side roller 14 and the large fixed side roller 17 are located on the same front-back vertical surface. Before the steel pipe bundle 9 moves to the baffle 5, the movable small side roller 15 and the movable large side roller 18 are far away from the steel pipe bundle 9; after the steel pipe bundle 9 moves to the baffle 5, the movable small side roller 15 and the movable large side roller 18 are both directed to the steel pipe bundle 9 to clamp the steel pipe bundle 9.

Wherein, referring to fig. 1, the left and right sides of the frame 1 and the roller conveyor 2 in the embodiment of the present invention are all provided with a traveling guide rail 20 (specifically, composed of two side-by-side left and right slide rails), the traveling guide rail 20 is arranged along the front-back direction, the lower ends of the left and right sides of the gantry welding frame 3 (the lower ends of the vertical beams) are respectively provided with a traveling trolley, and the traveling trolleys on the two sides are synchronously driven and can all be arranged on the traveling guide rail 20 on the corresponding side along the front-back direction sliding.

Further, referring to fig. 1, in the embodiment of the present invention, a rack 21 (disposed between two slide rails) is disposed on the left side or the right side (the left side and the right side of the frame 1 are also provided with the rack 21) along the front-back direction, and a rack traveling structure cooperating with the rack 21 is disposed on the traveling trolley on the corresponding side. Specifically, the rack 21 is horizontally arranged, and the rack walking structure is provided with a gear engaged with the rack in the vertical direction and driven by a servo motor, and the structure of the rack walking structure is a common structure, and detailed description is omitted in this embodiment.

Referring to fig. 4, the front side or the rear side of the gantry welding frame 3 according to the embodiment of the present invention is provided with vertical slide rails 22 (formed by two slide rails side by side from left to right), two first slides 23 are provided on the vertical slide rails 22 along the left and right directions, the two first slides 23 are provided side by side from top to bottom, and each of the two first slides 23 is provided with a spot welding structure. A screw driving structure 24 is arranged between the first sliding seat 23 and the corresponding side of the gantry type welding rack 3 and used for driving the first sliding seat 23 to move up and down, specifically, a screw driving structure 24 is arranged above the vertical sliding rail 22, and the screw driving structure 24 is in threaded connection (a rotating seat is arranged between the two first sliding seats 23, and the lower end of the screw is rotationally connected with the rotating seat) or in rotational connection with the first sliding seat 23 at the upper side through a screw arranged in the vertical direction; correspondingly, a further spindle drive 24 is provided below the vertical slide rail 22 for driving a lower first carriage 23. The welding cylinder 12 is fixed in the outside of first slide 23 and the inner of its telescopic link is equipped with a spot welding rifle 11, and on first slide 23 (horizontal slide rail is equipped with along controlling to the front side lower part along controlling to the spot welding rifle 11, and the horizontal slide rail is gone up to sliding and is equipped with horizontal slide, spot welding rifle 11 was located on the horizontal slide, the inner and the horizontal slide fixed connection of the telescopic link of welding cylinder 12), the vertical setting of lead screw drive structure 24 just was driven by servo motor.

Further, referring to fig. 1 to 3, a front lifting gantry 25 and a rear lifting gantry 26 are respectively disposed at front and rear ends of the frame 1 and above the gantry type welding frame 3 (a top beam of the lifting gantry is disposed above a top beam of the gantry type welding frame), the rear suspension type manipulator 6 is disposed on (in the middle of) the rear lifting gantry 26, a first lifting structure (a conventional structure, specifically, a rack lifting structure or a lead screw lifting structure) is disposed between the rear lifting gantry 26 and the rear lifting gantry 26 for moving the rear suspension type manipulator 6 up and down, the front suspension type manipulator 7 is disposed on the front lifting gantry 25, and a second lifting structure (a conventional structure, specifically, a rack lifting structure or a lead screw lifting structure) and a front-back moving structure (a conventional structure, specifically, a rack lifting structure or a lead screw lifting structure, a slide rail is disposed thereon in a front-back direction) are disposed between the front lifting gantry 25 and the front suspension type manipulator 7 can move back and forth and up and down, the front-back moving structure is arranged on the front lifting portal frame 25 in a front-back moving mode, the second lifting structure is arranged on the front-back moving structure in a vertical moving mode, and the front suspension type manipulator 7 is arranged at the lower end of the second lifting structure.

Specifically, referring to fig. 2 and 3, the front suspension type manipulator 7 in the embodiment of the present invention includes a front gripper 27 that is open backward and can slide forward and backward at the lower end of the second lifting structure (specifically, the top of the front gripper 27 is provided with a slide rail in the forward and backward directions, and the bottom of the second lifting structure is provided with a slide groove in the forward and backward directions), a front driving cylinder 28 that is between the front gripper 27 and the second lifting structure and can drive the front gripper 27 to slide forward and backward (arranged in the forward and backward directions, located at the front side of the second lifting structure, and connected to the front gripper 27 at the rear end of the telescopic rod), and the like. The rear suspension type manipulator 6 includes a rear gripper 29 (specifically, a slide rail is provided at the top of the rear gripper 29 in the front-rear direction, and a slide groove is provided at the bottom of the first lifting structure) which opens forward and can slide forward and backward at the lower end of the first lifting structure, and a rear driving cylinder 30 (provided in the front-rear direction, on the rear side of the first lifting structure, and the front end of a telescopic rod thereof is connected to the rear gripper 29) which is provided between the rear gripper 29 and the first lifting structure and can drive the rear gripper 29 to slide forward and backward. The front gripper 27 and the rear gripper 29 are both U-shaped structures arranged in the front and rear directions.

Preferably, referring to fig. 1, the gantry type welding machine frame 3 in the embodiment of the present invention is 4; the 2 gantry welding frames 3 on the front side are fixed together for communication through a front linkage rod 31 (specifically, a round rod, one end of which is fixed on the gantry welding frame 3, and the other end of which is adjustably arranged on the other gantry welding frame 3) in the front-back direction, the distance between the gantry welding frames is adjustable, and the gantry welding frames synchronously move. The 2 gantry welding frames 3 on the rear side are fixed together through a front linkage rod 32 and a rear linkage rod 32 (the arrangement mode of the gantry welding frames is consistent with that of the front linkage rod 31), the distance between the gantry welding frames is adjustable, and the gantry welding frames move synchronously.

Wherein, referring to fig. 5, the inner sides of two vertical beams of the gantry welding frame 3 in the embodiment of the present invention are respectively provided with a pressing slide rail (specifically, two slide rails arranged side by side in the front and back direction) along the vertical direction, the two pressing slide rails are arranged symmetrically in the left and right direction, and a crane 33 is arranged between the two pressing slide rails, the left and right sides of the crane 33 are respectively slidably arranged on the pressing slide rails of the corresponding side, and the left and right sides of the lower end of the crane are respectively provided with a fixing plate 34 (specifically, a rectangular plate arranged in the front and back direction) along the vertical direction, the left and right ends of the top guide roller 13 are arranged on the fixing plate 34 of the corresponding side, the upper end of the fixed small side roller 14 is arranged at the bottom of the fixing plate 34 on the left or right side, the outer side of the fixing plate 34 fixed with the fixed small side roller 14 is provided with a top driving cylinder 16 (, a second movable plate 36 (specifically, a rectangular plate arranged in the front-rear direction) is disposed on the outer side of the fixed plate 34 on the other side, and the first movable plate 35 and the second movable plate 36 are arranged in parallel; the upper end of the movable small side roller 15 is provided at the bottom of the second flap 36. At least one sliding rod 37 (specifically, a smooth round rod) is arranged between the second movable plate 36 and the first movable plate 35 along the left-right direction, and the sliding rod 37 can be arranged on the lifting frame 33 in a left-right direction in a sliding manner. Specifically, the number of the slide bars 37 is two, the two slide bars 37 are arranged side by side up and down, one slide bar 37 on the lower side passes through a rotating shaft (hollow shaft) of the top guide roller 13, and one slide bar 37 on the upper side passes through the lifting frame 33.

Referring to fig. 5, the fixed large side roller 17 and the movable large side roller 18 in the embodiment of the present invention are both disposed at the lower portion of the bottom steel tube bundle unit 4 to the upper portion of the third (from bottom to top) steel tube bundle unit 4. The fixed large side roller 17 is arranged on a vertical beam at the corresponding side (left side or right side) of the gantry type welding frame 3 through a fixed arm 19; the large movable side roller 18 is arranged at the front end or the rear end of the swing arm 38 (arranged in the front-rear direction); the other end of the swing arm 38 is rotatably arranged on a vertical beam on the corresponding side (right side or left side) of the gantry type welding frame 3 through a vertically arranged rotating shaft, and a side driving cylinder (hinged with the outer side of the swing arm 38 and the gantry type welding frame 3) is arranged between the middle part of the swing arm and the gantry type welding frame 3 along the left-right direction.

Wherein, the embodiment of the utility model provides an in rollgang 2 set up and many conveying rollers of synchronous drive (specifically can be by chain synchronous drive) side by side including the front and back and be used for carrying steel-pipe bundle 9.

The operation of the apparatus is described below with reference to fig. 1-5: when the steel pipe bundle unit moves to the baffle, the rear suspension type manipulator and the front suspension type manipulator act to lift the steel pipe bundle unit upwards; continuously inputting the steel pipe bundle unit to the position right below the suspended steel pipe bundle unit; the top pressing structure (moving downwards) and the lateral pressing structure position the two steel pipe bundle units, the gantry welding frame is uniformly distributed, and the two spot welding guns (such as the spot welding gun at the lower side and the two spot welding guns are positioned on the same horizontal plane) at the left side and the right side move inwards to assemble the two steel pipe bundle units (the gantry welding frame does not move or moves slightly); after the assembly is finished, the top pressing structure (moving upwards) and the lateral pressing structure return; the rear suspension type manipulator and the front suspension type manipulator act to lift the two welded steel pipe bundle units upwards; continuously inputting the steel pipe bundle unit to the position right below the suspended steel pipe bundle unit; repeating the above assembly process; after the three steel pipe bundle units are combined together, the gantry type welding frame moves back and forth to repair and weld a plurality of point positions of the welding seam until the point positions meet the requirements (the lifting and the subsequent processing cannot be separated); in this way, repair welding is carried out once when two steel pipe bundle units are added; until a predetermined number is reached.

In this embodiment, "first", "second", or "third" only plays a distinguishing role, and has no other special meaning.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembling and spot welding device for a steel pipe bundle comprises a rack (1), a conveying roller way (2) which is arranged on the rack (1) along the front-back direction, a rear suspension type manipulator (6) which is arranged at the rear end of the rack (1) and can move up and down, a front suspension type manipulator (7) which is arranged at the front end of the rack (1) and can move up and down, a gantry type welding rack (3) which is arranged on the rack (1) in a sliding manner along the front-back direction and is positioned above the conveying roller way (2), a top compression structure (8) which is arranged on the gantry type welding rack (3) and can move up and down, and lateral compression structures (10) which are arranged on the gantry type welding rack (3) and are positioned at the left side and the right side of; the device is characterized by further comprising a baffle (5) which is arranged at the rear end of the conveying roller way (2) and can block the steel pipe bundle unit (4) from passing through and two spot welding structures arranged on the left side and the right side of the gantry type welding rack (3); the baffle (5) can prevent the steel pipe bundle unit (4) from moving backwards when turning upwards or moving upwards, otherwise, the steel pipe bundle unit (4) passes through; the front suspension type manipulator (7) and the rear suspension type manipulator (6) are arranged right above the steel pipe bundle (9) and can respectively grab the front end and the rear end of the top of the steel pipe bundle (9) and enable the steel pipe bundle (9) to move up and down, the rear suspension type manipulator (6) is located right above the baffle (5), and the front suspension type manipulator (7) can move back and forth; the number of the gantry type welding racks (3) is at least 2, and the gantry type welding racks (3) are arranged at intervals front and back and can move front and back; the two spot welding structures are arranged in bilateral symmetry and are respectively positioned at the left side and the right side of the steel pipe bundle (9), each spot welding structure comprises two spot welding guns (11) which are arranged side by side from top to bottom, and the two spot welding guns (11) are respectively opposite to the joints of the three steel pipe bundle units (4) at the lowest part; the spot welding gun (11) is arranged along the left-right direction, can be arranged on a vertical beam of the gantry type welding rack (3) in an up-down adjusting mode, and can be driven by the welding cylinder (12) to move along the left-right direction; the top pressing structure (8) is positioned right above the steel pipe bundle (9) and comprises a top guide roller (13) which is arranged in the left-right direction and can be pressed against the top of the steel pipe bundle (9), a fixed small side roller (14) which is vertically arranged and pressed against the left side or the right side of the steel pipe bundle unit (4) at the top, a movable small side roller (15) which is vertically arranged and pressed against the other side of the steel pipe bundle unit (4) at the top and a top driving cylinder (16) for driving the movable small side roller (15) to move left and right; the lateral compression structure (10) comprises a fixed large side roller (17) which is vertically arranged and is pressed against the left side or the right side of the steel pipe bundle (9), a movable large side roller (18) which is vertically arranged and is pressed against the other side of the steel pipe bundle (9), and a lateral driving cylinder which drives the movable large side roller (18) to move left and right; the movable small side roller (15) and the movable large side roller (18) are positioned on the same side.

2. The assembling and spot welding device for the steel pipe bundle according to claim 1, wherein the rack (1) is provided with traveling guide rails (20) on the left and right sides of the conveying roller table (2), the traveling guide rails (20) are arranged in the front-back direction, the lower ends of the left and right sides of the gantry type welding rack (3) are respectively provided with a traveling trolley, and the traveling trolleys on the two sides are synchronously driven and can be arranged on the traveling guide rails (20) on the corresponding sides in the front-back direction in a sliding manner.

3. The assembling and spot welding device for the steel pipe bundle according to claim 2, wherein a rack (21) is arranged on the left side or the right side of the frame (1) in the front-back direction, and a rack traveling structure matched with the rack (21) is arranged on the traveling trolley on the corresponding side.

4. The assembling and spot welding device for the steel pipe bundle according to claim 1, wherein a vertical slide rail (22) is arranged on the front side or the rear side of the gantry type welding frame (3), two first slide seats (23) are arranged on the vertical slide rail (22) in the left-right direction, the two first slide seats (23) are arranged side by side up and down and are respectively provided with a spot welding structure, a screw rod driving structure (24) is arranged between the first slide seats (23) and the corresponding side of the gantry type welding frame (3) and is used for driving the first slide seats (23) to move up and down, the welding cylinder (12) is fixed on the outer side of the first slide seats (23), the inner end of a telescopic rod of the welding cylinder is provided with a spot welding gun (11), the spot welding gun (11) is arranged on the first slide seats (23) in the left-right direction in a sliding manner, and the screw rod driving structure (24) is vertically.

5. The assembling and spot welding device for the steel pipe bundle according to claim 1, wherein a front lifting portal frame (25) and a rear lifting portal frame (26) are respectively arranged at the front end and the rear end of the frame (1) and above the gantry type welding frame (3), the rear suspension type manipulator (6) is arranged on the rear lifting portal frame (26), a first lifting structure is arranged between the rear suspension type manipulator and the rear lifting portal frame, the front suspension type manipulator (7) is arranged on the front lifting portal frame (25), and a second lifting structure and a front-back moving structure are arranged between the front suspension type manipulator and the front lifting portal frame to ensure that the front suspension type manipulator (7) can move back and forth and up and down, the front-back moving structure is arranged on the front lifting portal frame (25) in a front-back moving way, the second lifting structure can be arranged on the front-back moving structure in a vertically moving mode, and the front suspension type manipulator (7) is arranged at the lower end of the second lifting structure.

6. The assembling and spot welding device for the steel pipe bundle according to claim 5, wherein the front suspension type manipulator (7) comprises a front gripper (27) which is opened backwards and can slide forwards and backwards at the lower end of the second lifting structure, and a front driving cylinder (28) which is arranged between the front gripper (27) and the second lifting structure and can drive the front gripper (27) to slide forwards and backwards; the rear suspension type manipulator (6) comprises a rear gripper (29) which is opened forwards and can slide forwards and backwards at the lower end of the first lifting structure, a rear driving cylinder (30) which is arranged between the rear gripper (29) and the first lifting structure and can drive the rear gripper (29) to slide forwards and backwards, and the front gripper (27) and the rear gripper (29) are U-shaped structures which are arranged forwards and backwards.

7. The assembling and spot welding device for the steel tube bundle according to claim 1, wherein the number of gantry type welding frames (3) is 4; 2 gantry type welding frames (3) on the front side are fixed together through front linkage rods (31) in the front-back direction, the distance between the gantry type welding frames is adjustable, and the gantry type welding frames move synchronously; the 2 gantry type welding frames (3) at the rear side are fixed together through a front linkage rod and a rear linkage rod (32), the distance between the gantry type welding frames is adjustable, and the gantry type welding frames move synchronously.

8. The assembling and spot welding device for steel pipe bundles according to claim 1, wherein a pressing slide rail is respectively arranged at the inner sides of two vertical beams of the gantry type welding frame (3) along the vertical direction, the two pressing slide rails are arranged in bilateral symmetry, a lifting frame (33) is arranged between the two pressing slide rails, the lifting frame (33) is arranged on the pressing slide rails in a sliding manner, a fixing plate (34) is respectively arranged at the left side and the right side of the lower end of the lifting frame along the vertical direction, the left end and the right end of the top guide roller (13) are arranged on the fixing plate (34) at the corresponding side, the upper end of the fixed small side roller (14) is arranged at the bottom of the fixing plate (34) at the left side or the right side, a top driving cylinder (16) is arranged at the outer side of the fixing plate (34) fixed with the fixed small side roller (14) along the left-right direction, a first movable plate (35) is arranged at the, the upper end of the movable small side roller (15) is arranged at the bottom of the second movable plate (36), at least one sliding rod (37) is arranged between the second movable plate (36) and the first movable plate (35) in the left-right direction, and the sliding rod (37) can be arranged on the lifting frame (33) in the left-right direction in a sliding manner.

9. The assembling and spot welding device for steel pipe bundles according to claim 1, wherein the fixed large side roller (17) and the movable large side roller (18) are arranged from the lower part of the steel pipe bundle unit (4) at the bottom to the upper part of the third steel pipe bundle unit (4); the fixed large side roller (17) is arranged on a vertical beam on the corresponding side of the gantry type welding rack (3) through a fixed arm (19); the large movable side roller (18) is arranged at the front end or the rear end of the swing arm (38); the other end of the swing arm (38) is rotatably arranged on a vertical beam on the corresponding side of the gantry type welding rack (3) through a vertically arranged rotating shaft, and a side driving cylinder is arranged between the middle of the swing arm and the gantry type welding rack (3) along the left-right direction.

10. The assembling and spot welding device for steel tube bundles according to claim 1, wherein the conveying roller table (2) comprises a plurality of conveying rollers which are arranged side by side in the front and back direction and are driven synchronously.