Multi-machine collaborative welding equipment for grooves of thick plate winding drums

Abstract

The utility model relates to multi-machine collaborative welding equipment for thick plate winding drum grooves in the technical field of crane manufacturing equipment. The multi-machine collaborative welding equipment comprises a supporting frame; the front and back sliding rail pair is mounted on one side of the supporting frame; the vertical sliding rail pair is mounted on the sliding part of the front-back sliding rail pair; the left and right sliding rail pair is mounted on the sliding part of the vertical sliding rail pair; the mounting frame is arranged at the end, corresponding to the supporting frame, of the sliding part of the left and right sliding rail pair, and an MAG welding gun, an SAW welding gun and two parallel SAW welding guns are sequentially arranged on the mounting frame at intervals from front to back; according to the utility model, a welding seam of a thick plate winding drum groove is welded by adopting an MAG + SAW composite welding mode, efficient welding of joint filling, backing welding and filling welding is realized, the manufacturing efficiency is improved, the three SAW welding guns are distributed in a triangular shape, and the two rear SAW welding guns are obliquely arranged, so that the distance between the SAW welding guns can be increased, heat is dissipated by virtue of base metal, and the welding quality of the thick plate winding drum groove is improved. The impact performance of the welding seam and the heat affected zone is ensured; and the stability of the welding seam quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of crane manufacturing equipment, in particular to a multi-machine cooperative welding equipment for thick plate drum grooves. Background Art

[0002] The drum is a key component in lifting and transport machinery, mainly used to wind ropes and transmit power, and bear the weight of the hoisted object. The drum transmits the driving force to the wound wire rope through its own rotational motion, and relies on the linear motion of the wire rope to realize the handling and transfer of goods.

[0003] At present, most of the reels of large lifting and transportation equipment are welded reels, which have obvious performance advantages due to their light weight and strong bearing capacity. However, welding reels have a large amount of welding work, and single-wire submerged arc welding is generally used. If there is a large gap in the welding joint, manual welding is required to fill the gap, which seriously restricts the production efficiency of the product.

[0004] To this end, we provide a multi-machine collaborative welding equipment for thick plate drum beveling. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a thick plate drum groove multi-machine cooperative welding device.

[0006] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0007] A thick plate drum groove multi-machine collaborative welding equipment, characterized by comprising:

[0008] A support frame, used for supporting the reel segment;

[0009] A front and rear slide rail pair is installed on one side of the support frame;

[0010] A vertical slide rail pair, mounted on the sliding portion of the front and rear slide rail pairs;

[0011] Left and right slide rail pairs, mounted on the sliding portion of the vertical slide rail pair;

[0012] The mounting frame is arranged at one end of the supporting frame corresponding to the sliding part of the left and right slide rail pairs. A MAG welding gun, a SAW welding gun and two parallel SAW welding guns are arranged in sequence from front to back along the mounting frame, wherein the three SAW welding guns are distributed in a triangle.

[0013] Preferably, the support frame comprises at least two support wheel groups spaced apart in the front-to-rear direction, and each support wheel group has two support wheels spaced apart from each other to stably support the reel segment.

[0014] Preferably, the mounting bracket is horizontally rotatably disposed at one end of the sliding portion of the left and right slide rail pairs to accommodate welding operations of the axial weld and circumferential weld of the drum.

[0015] Preferably, the distance between the front SAW welding gun and the rear SAW welding gun is 45-55 mm, the gap between the two rear SAW welding guns is 30-50 mm, and they are inclined 15±2° toward the center of the weld.

[0016] Preferably, the distance between the front SAW welding gun and the MAG welding gun is 50-100 mm.

[0017] Preferably, a visual sensor is provided at a position of the mounting frame in front of the MAG welding gun for pre-scanning and detecting the weld before welding.

[0018] Preferably, the MAG welding gun is mounted on the mounting frame via linear slide rail pairs arranged on the left and right.

[0019] Preferably, the mounting bracket is mounted on the mounting frame via an oscillator.

[0020] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0021] 1. The MAG+SAW composite welding method is used for the welding of thick plate drum groove welds, which realizes the efficient welding of caulking, base welding and filling welding, greatly shortens the manufacturing cycle and improves the manufacturing efficiency. The three SAW welding guns are distributed in a triangle, and the two SAW welding guns at the rear are tilted, which can increase the distance between the SAW welding guns, so that the position of the molten pool in the parent material accounts for about 2 / 3 of the molten pool. The heat is dissipated by the parent material, ensuring the impact performance of the weld and the heat-affected zone and the stability of the weld quality;

[0022] 2. The SAW welding gun can be used together with the MAG welding gun, so that the residual heat after the MAG welding gun can be effectively utilized during SAW welding. While ensuring the welding quality, the welding current of the SAW welding gun can be effectively reduced, achieving the effect of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the multi-machine cooperative welding equipment in the utility model;

[0024] Figure 2 It is a schematic diagram of the assembly structure of the mounting frame and the welding gun in the utility model;

[0025] Figure 3 It is a rear view of the mounting frame in the utility model;

[0026] Figure 4 It is a right side view of the mounting frame in the utility model.

[0027] In the figure: 1. support frame; 101. support wheel assembly; 111. support wheel; 2. front and rear slide rail pairs; 3. vertical slide rail pairs; 4. left and right slide rail pairs; 5. mounting frame; 6. MAG welding gun; 7. SAW welding gun; 8. visual sensor; 9. linear slide rail pairs; 10. oscillator; 11. rotating rod; 12. sleeve; 13. locking screw. DETAILED DESCRIPTION

[0028] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0029] Embodiment 1, in combination with the attached Figure 1-4 , a thick plate drum groove multi-machine collaborative welding equipment, comprising:

[0030] A support frame 1, used for supporting the reel segment;

[0031] According to the needs, the middle of the top surface of the support frame 1 has a V-shaped placement groove, or the two sides of the top have protrusions to ensure the stable position of the reel segment.

[0032] In order to conveniently adjust the position of the roll weld, the top surface of the support frame 1 is provided with support wheels 111 on both sides;

[0033] As needed, the support frame 1 includes at least two support wheel groups 101 spaced apart in the front-to-back direction, each support wheel group 101 has two support wheels 111 spaced apart on the left and right sides for stably supporting the drum segment; such an arrangement also enables the welding equipment to perform welding operations on the annular seam of the drum.

[0034] As required, the support wheel assembly 101 may also have a structure for braking the support wheel 111. In this way, the angle of the reel can be adjusted without braking the support wheel 111, and the reel segment can be ensured to be stable and not rotated when braking.

[0035] The front and rear slide rail pairs 2 are installed on one side of the support frame 1;

[0036] A vertical slide rail pair 3 is mounted on the sliding portion of the front and rear slide rail pairs 2;

[0037] The left and right slide rail pairs 4 are mounted on the sliding part of the vertical slide rail pair 3;

[0038] The mounting frame 5 is arranged at one end of the supporting frame 1 corresponding to the sliding part of the left and right slide rail pairs. A MAG welding gun 6, a SAW welding gun 7 and two parallel SAW welding guns 7 are arranged in sequence from front to back along the mounting frame 5, wherein the three SAW welding guns 7 are distributed in a triangle.

[0039] According to the needs, when the welding equipment is carrying out welding operation on the annular seam of the roll, the mounting frame 5 can be horizontally rotatably arranged at one end of the sliding part of the left and right slide rail pairs 4;

[0040] Furthermore, the mounting frame 5 is correspondingly connected to the sliding parts of the left and right slide rail pairs 4 through a rotating structure with a locking function, so that the mounting frame 5 can be rotated to a certain angle when it needs to be rotated, and its position can be kept fixed when it does not need to be rotated. The above-mentioned rotating structure can adopt the structure of manually rotating the mounting frame 5 in the prior art, and can also be equipped with a power system to realize the function of automatically rotating the mounting frame 5. For example, it includes a vertically arranged rotating rod 11, a sleeve 12 sleeved on the outside of the rotating rod, and a locking screw 13 screwed to the sleeve body, and the locking screw 13 fixes the position of the rotating rod 11 and the sleeve 12, wherein the rotating rod 11 or the sleeve 12 is fixed to the mounting frame 5, and the sleeve 12 or the rotating rod 11 is fixed to the sliding parts of the left and right slide rail pairs 4. For another example, the rotating structure can also be a horizontal rotating positioner. Since the horizontal rotating positioner is an existing conventional equipment, its specific structure and principle will not be repeated here.

[0041] As needed, in order to adapt to grooves of different widths, the mounting frame 5 is provided with strip holes in the left and right directions, and the two parallel SAW welding guns 7 are installed by cooperating with the strip holes through a bolt and nut group. At this time, the position of the bolt and nut group can be adaptively adjusted according to the width of the groove to adjust the left and right position of the SAW welding gun 7.

[0042] As needed, in order to better utilize the residual heat of the front welding gun after welding by the rear welding gun, the distance between the front SAW welding gun 7 and the rear SAW welding gun 7 is 45~55mm, the gap between the two rear SAW welding guns 7 is 30~50mm, and the distance between the front SAW welding gun 7 and the MAG welding gun 6 is 50~100mm.

[0043] Since the MAG welding gun 6 only needs to be used once at the beginning, in order to increase the height of the MAG welding gun 6 when not in use, the mounting frame 5 is mounted on the mounting frame 5 through the oscillator 10 .

[0044] The working principle is: first, use the MAG welding gun 6 of the multi-machine collaborative welding equipment to weld the position where the weld gap is greater than 1.5 mm; then use a SAW welding gun 7 in front of the multi-machine collaborative welding equipment and two SAW welding guns 7 in parallel at the rear to weld the weld at the same time; the front SAW welding gun 7 performs base welding, and the two SAW welding guns 7 at the rear perform filling welding; and repeat the welding operation of the three SAW welding guns 7 until the groove filling welding is completed.

[0045] It should be noted that the welding operation of the MAG welding gun 6 and the first welding operation of the three SAW welding guns 7 can be performed simultaneously. When the operations are performed synchronously, the welding current of the front SAW welding gun 7 can be appropriately reduced as needed.

[0046] When the MAG welding gun 6 and the three SAW welding guns 7 are executed separately, the welding wire diameter of the MAG welding gun 6 is 1.2 mm, the welding current is 250~270 A, and the welding speed is 500~650 mm / min; the welding wire diameter of the front SAW welding gun 7 is 4 mm, the welding current is 580~620 A, and the welding speed is 550~600 mm / min; the welding wires of the two rear SAW welding guns 7 are 2 mm, and the welding current is 360~390 A.

[0047] When the welding operation of the MAG welding gun 6 and the first welding operation of the three SAW welding guns 7 can be carried out simultaneously, the welding wire diameter of the MAG welding gun 6 is 1.2mm, the welding current is 250~270A, and the welding speed is 500~650mm / min; the welding wire diameter of the front SAW welding gun 7 is 4mm, and when the welding operation is performed for the first time, the welding current is 550~600A, and the welding speed is 550~600mm / min; when repeated later, when the welding operation is performed, the welding current is 580~620A, and the welding speed is 550~600mm / min; the welding wires of the two rear SAW welding guns 7 are 2mm, and the welding current is 360~390A.

[0048] Embodiment 2, combined with the attached Figure 3 A thick plate drum groove multi-machine collaborative welding equipment, based on the first embodiment, the two rear SAW welding guns 7 are inclined to the center of the weld by 15±2°; in this way, the distance between the two rear SAW welding guns 7 is increased, so that the position of the molten pool located at the parent material occupies about 2 / 3 of the molten pool, and the parent material can be relied on to dissipate heat to ensure the impact performance of the weld and the heat-affected zone.

[0049] Embodiment 3, in combination with the attached Figure 2-4, a thick plate drum groove multi-machine cooperative welding equipment, based on the first or second embodiment, a mounting frame 5 is provided with a visual sensor 8 in front of a MAG welding gun 6, which is used to pre-scan and detect the weld before welding. That is, the weld can be pre-scanned by the visual sensor 8, and the start and end positions and height of the multi-machine cooperative welding equipment can be adjusted according to the weld information.

[0050] Furthermore, the MAG welding gun 6 is mounted on the mounting frame 5 through the linear guide rails 9 arranged on the left and right sides; that is, the left and right positions of the MAG welding gun 6 are adjusted in real time through the weld information obtained by pre-scanning the weld by the visual sensor 8. It should be noted that the left and right positions of the MAG welding gun 6 are adjusted by a small distance, and the general adjustment range is within 5 mm, so the length of the linear guide rails does not need to be designed to be too long.

[0051] It should be noted that the above-mentioned linear guide rail pairs all adopt existing equipment equipped with a power source, which will not be described in detail at this time.

[0052] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A thick plate drum groove multi-machine collaborative welding equipment, characterized in that: include: A support frame (1) for supporting the reel segment; A front and rear slide rail pair (2) mounted on one side of the support frame (1); A vertical slide rail pair (3) mounted on the sliding portion of the front and rear slide rail pairs (2); Left and right slide rail pairs (4) mounted on the sliding portion of the vertical slide rail pair (3); A mounting frame (5) is arranged at one end of the supporting frame (1) corresponding to the sliding part of the left and right slide rail pairs, and a MAG welding gun (6), a SAW welding gun (7) and two parallel SAW welding guns (7) are arranged in sequence from front to back on the mounting frame (5), wherein the three SAW welding guns (7) are distributed in a triangular shape.

2. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The support frame (1) comprises at least two support wheel groups (101) spaced apart in the front-rear direction, and each support wheel group (101) comprises two support wheels (111) spaced apart from each other to stably support the reel segment.

3. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The mounting frame (5) is horizontally rotatably arranged at one end of the sliding part of the left and right slide rail pairs (4) to accommodate welding operations of the axial weld and the circumferential weld of the reel.

4. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The distance between the front SAW welding gun (7) and the rear SAW welding gun (7) is 45-55 mm, and the gap between the two rear SAW welding guns (7) is 30-50 mm.

5. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The two rear SAW welding guns (7) are both inclined 15±2° toward the center of the weld.

6. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The distance between the front SAW welding gun (7) and the MAG welding gun (6) is 50 to 100 mm.

7. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 is characterized in that: The mounting frame (5) is provided with a visual sensor (8) at a position in front of the MAG welding gun (6) for pre-scanning and detecting the weld before welding.

8. The thick plate drum groove multi-machine cooperative welding equipment according to claim 7 is characterized in that: The MAG welding gun (6) is mounted on the mounting frame (5) via linear slide rail pairs (9) arranged on the left and right.

9. The thick plate drum groove multi-machine cooperative welding equipment according to claim 1 or 7, characterized in that: The MAG welding gun (6) is mounted on the mounting frame (5) via an oscillator (10).

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