Swing welding device for casing pipe frame body of flotation machine

Abstract

The utility model relates to the technical field of welding tools, and provides a swing welding device for a casing pipe frame body of a flotation machine, which is used for positioning a lower flange and a main pipe and is characterized in that the swing welding device comprises a base, a positioning sleeve and a jacking block, the positioning sleeve is arranged on the base, an annular slot is formed in the positioning sleeve, and the main pipe is inserted into the annular slot; the positioning sleeve is arranged on the base, the jacking blocks are arranged on the base, the number of the jacking blocks is at least two, all the jacking blocks are arranged around the positioning sleeve, and a clamping cavity of the lower flange is reserved between the jacking blocks and the positioning sleeve. According to the technical scheme, the problems that in the prior art, swing welding of the sleeve frame mainly depends on manual operation, efficiency is not high, and swing welding precision is greatly influenced by human factors are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, and specifically, to a swing welding device for a floatation machine casing frame body. Background Art

[0002] The casing frame body includes a lower flange, a main pipe and a reinforcing rib plate. The lower flange is located below the main pipe. During swing welding, the upper end of the reinforcing rib plate needs to be welded to the main pipe, and the lower end of the reinforcing rib plate needs to be welded to the lower flange, so as to connect the main pipe and the lower flange together and leave a required gap between the lower flange and the main pipe. At present, the swing welding of the casing frame body relies on simple pads with different heights and scribing to leave the required gap between the lower flange and the main pipe. It mainly relies on manual swing welding, with low efficiency and the swing welding accuracy being greatly affected by human factors. Content of the Utility Model

[0003] The utility model provides a swing welding device for a floatation machine casing frame body, which solves the problems in the related art that the swing welding of the casing frame body mainly relies on manual operation, with low efficiency and the swing welding accuracy being greatly affected by human factors.

[0004] The technical solution of the utility model is as follows: A swing welding device for a floatation machine casing frame body, used for positioning a lower flange and a main pipe. The key lies in: including,

[0005] A base,

[0006] A positioning sleeve, the positioning sleeve is arranged on the base, and an annular slot is opened on the positioning sleeve for inserting the main pipe;

[0007] Tightening blocks, the tightening blocks are arranged on the base, the number of the tightening blocks is at least two, all the tightening blocks are arranged around the positioning sleeve, and a clamping cavity for the lower flange is left between the tightening blocks and the positioning sleeve.

[0008] An installation hole is opened on the base, the positioning sleeve is inserted at the installation hole, and further includes,

[0009] A positioning shaft, the positioning shaft is arranged on the base and is located outside the installation hole;

[0010] A positioning convex ring, the positioning convex ring is arranged on the outer periphery of the positioning sleeve;

[0011] An upper pad, the upper pad is rotatably sleeved on the positioning shaft and is located above the base. After the upper pad rotates, it contacts the lower end surface of the positioning convex ring and is used to support the positioning convex ring.

[0012] An annular positioning groove is formed on the upper end surface of the base. The annular positioning groove is located outside the mounting hole. The inner diameter of the annular positioning groove is equal to the diameter of the mounting hole. The outer diameter of the annular positioning groove is greater than or equal to the outer diameter of the positioning convex ring. The positioning shaft is located outside the annular positioning groove.

[0013] It further includes a lower cushion block. The lower cushion block is arranged at the bottom of the base and is located outside the mounting hole. The distance between the bottom surface of the annular positioning groove and the lower end surface of the lower cushion block is L1, and the distance between the lower end surface of the positioning convex ring and the bottom surface of the annular positioning groove is L2, where L1≥L2.

[0014] The number of the lower cushion blocks is at least two, and all the lower cushion blocks are evenly arranged along the circumferential direction of the mounting hole.

[0015] It further includes,

[0016] a support seat, which is arranged on the base and is located outside the pressing block;

[0017] an adjusting rod, which is threadedly connected with the support seat. The inner end of the adjusting rod is rotatably connected with the pressing block. The outer end of the adjusting rod is located outside the support seat. After the adjusting rod rotates, it drives the pressing block to approach or move away from the positioning sleeve.

[0018] It further includes a slider. A sliding groove is formed on the upper end surface of the base. The pressing block is located above the sliding groove. The slider is arranged at the bottom of the pressing block and forms a sliding fit with the sliding groove.

[0019] It further includes an annular positioning line, which is arranged on the upper end surface of the base. The number of the positioning lines is at least two, and all the positioning lines are coaxially arranged with the positioning sleeve.

[0020] It further includes a lifting ring, which is arranged on the base.

[0021] An air duct flange marking hole and a chemical dosing flange marking hole are formed on the base. The air duct flange marking hole and the chemical dosing flange marking hole are both located outside the positioning sleeve and are symmetrically arranged along the radial direction of the positioning sleeve.

[0022] The working principle and beneficial effects of the present utility model are as follows: The positioning sleeve is arranged on the base, and an annular slot is opened on the positioning sleeve for inserting the main pipe; the tightening blocks are arranged on the base, and the number of the tightening blocks is at least two. All the tightening blocks are arranged around the positioning sleeve, and a clamping cavity for the lower flange is left between the tightening blocks and the positioning sleeve. During swing welding, the lower flange is sleeved on the periphery of the positioning sleeve and clamped between all the tightening blocks, and the lower end of the main pipe is inserted into the annular slot. Since the distance between the bottom surface of the annular slot on the positioning sleeve and the upper end surface of the base is fixed, the gap between the lower flange and the main pipe is fixed. Then, the upper end of the reinforcing rib plate is welded to the main pipe, and the lower end of the reinforcing rib plate is welded to the lower flange. The structure is simple, the design is reasonable, the operation is convenient and fast, time and labor are saved, the processing efficiency can be improved, the influence of human factors on the swing welding precision can be reduced, and thus the swing welding precision can be improved.

[0023] In addition, when the inner diameter of the main pipe is equal to the inner diameter of the annular slot and the outer diameter of the main pipe is less than or equal to the outer diameter of the annular slot, the inner wall of the main pipe fits with the inner side wall of the annular slot, and the outer wall of the main pipe fits with the outer side wall of the annular slot or is located inside it; when the inner diameter of the main pipe is greater than or equal to the inner diameter of the annular slot and the outer diameter of the main pipe is equal to the outer diameter of the annular slot, the inner wall of the main pipe fits with the inner side wall of the annular slot or is located outside it, and the outer wall of the main pipe fits with the outer side wall of the annular slot. It has high versatility and can meet the swing welding requirements of main pipes of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in combination with the drawings in the preferred embodiments.

[0025] Figure 1 It is a schematic structural diagram of the present utility model when in specific use.

[0026] Figure 2 It is a schematic structural diagram of the present utility model in one direction.

[0027] Figure 3 It is a schematic structural diagram of the present utility model in another direction.

[0028] Figure 4 It is a schematic structural diagram of the bottom of the present utility model.

[0029] Figure 5 It is a sectional view of the present utility model.

[0030] Figure 6 It is a schematic structural diagram of the present utility model without the positioning sleeve.

[0031] Figure 7 It is a schematic structural diagram of the duct flange marking holes and the chemical dosing flange marking holes of the present utility model.

[0032] Figure 8 It is a schematic structural diagram of the casing frame.

[0033] In the figure: 1. Base, 2. Positioning sleeve, 3. Tightening block, 4. Annular slot, 5. Positioning shaft, 6. Positioning convex ring, 7. Upper cushion block, 8. Mounting hole, 9. Annular positioning groove, 10. Lower cushion block, 11. Support seat, 12. Adjusting rod, 13. Slide block, 14. Slide groove, 15. Positioning line, 16. Lifting ring, 17. Air duct flange marking hole, 18. Chemical dosing flange marking hole, 19. Lower flange, 20. Main pipe, 21. Reinforcing rib plate, 22. Air duct flange, 23. Chemical dosing flange, 24. Upper flange. Specific embodiments

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings and other embodiments can be obtained.

[0035] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0036] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] Embodiment, refer to Figure 1 , Figure 2 and Figure 3, which is an embodiment of the present utility model, proposes a swing welding device for a flotation machine casing frame, used for positioning the lower flange 19 and the main pipe 20. It includes a base 1, a positioning sleeve 2, and a tightening block 3. The positioning sleeve 2 is arranged on the base 1, and an annular slot 4 is opened on the positioning sleeve 2 for inserting the main pipe 20; the tightening block 3 is arranged on the base 1, and the number of tightening blocks 3 is at least two. All the tightening blocks 3 are arranged around the positioning sleeve 2, and a clamping cavity for the lower flange 19 is left between the tightening block 3 and the positioning sleeve 2.

[0039] The upper end surface of the positioning sleeve 2 is located above the base 1, and the annular slot 4 is located on the upper end surface of the positioning sleeve 2. During swing welding, the lower flange 19 is sleeved around the positioning sleeve 2 and clamped between all the tightening blocks 3. The lower end of the main pipe 20 is inserted into the annular slot 4. Since the distance between the bottom surface of the annular slot 4 on the positioning sleeve 2 and the upper end surface of the base 1 is fixed, the gap between the lower flange 19 and the main pipe 20 is fixed. Then, the upper end of the reinforcing rib plate 21 is welded to the main pipe 20, and the lower end of the reinforcing rib plate 21 is welded to the lower flange 19. The structure is simple, the design is reasonable, the operation is convenient and fast, time-saving and labor-saving, which can improve the processing efficiency, reduce the influence of human factors on the swing welding accuracy, and thus improve the swing welding accuracy.

[0040] In addition, when the inner diameter of the main pipe 20 is equal to the inner diameter of the annular slot 4 and the outer diameter of the main pipe 20 is less than or equal to the outer diameter of the annular slot 4, the inner wall of the main pipe 20 fits with the inner side wall of the annular slot 4, and the outer wall of the main pipe 20 fits with the outer side wall of the annular slot 4 or is located inside it; when the inner diameter of the main pipe 20 is greater than or equal to the inner diameter of the annular slot 4 and the outer diameter of the main pipe 20 is equal to the outer diameter of the annular slot 4, the inner wall of the main pipe 20 fits with the inner side wall of the annular slot 4 or is located outside it, and the outer wall of the main pipe 20 fits with the outer side wall of the annular slot 4. It has high versatility and can meet the swing welding requirements of different models of the main pipe 20.

[0041] Furthermore, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 , mounting holes 8 are opened on the base 1, the positioning sleeve 2 is inserted at the mounting holes 8. It also includes a positioning shaft 5, a positioning convex ring 6, and an upper cushion block 7. The positioning shaft 5 is arranged on the base 1 and is located outside the mounting holes 8; the positioning convex ring 6 is arranged outside the positioning sleeve 2; the upper cushion block 7 is rotatably sleeved on the positioning shaft 5 and is located above the base 1. After the upper cushion block 7 rotates, it contacts the lower end surface of the positioning convex ring 6 for supporting the positioning convex ring 6.

[0042] At least two positioning shafts 5 are arranged around the installation hole 8. An upper cushion block 7 is rotatably sleeved on each positioning shaft 5. The positioning sleeve 2 is lifted, and the upper cushion block 7 is rotated so that the upper cushion block 7 contacts the lower end surface of the positioning convex ring 6, so that the positioning convex ring 6 and the positioning sleeve 2 can be maintained at the current height. When the distance between the lower flange 19 and the main pipe 20 is small, the upper cushion block 7 is rotated so that the upper cushion block 7 is separated from the positioning convex ring 6, and then the positioning sleeve 2 is lowered to the lowest position. It can meet the swing welding requirements of different specifications of casing frames.

[0043] Further, as Figure 1 , Figure 5 and Figure 6 shown, an annular positioning groove 9 is formed on the upper end surface of the base 1. The annular positioning groove 9 is located around the installation hole 8. The inner diameter of the annular positioning groove 9 is equal to the diameter of the installation hole 8, the outer diameter of the annular positioning groove 9 is greater than or equal to the outer diameter of the positioning convex ring 6, and the positioning shaft 5 is located outside the annular positioning groove 9. When the upper cushion block 7 is separated from the positioning convex ring 6, the positioning convex ring 6 is placed in the annular positioning groove 9. At this time, the lower end surface of the positioning sleeve 2 is flush with or above the lower end surface of the base 1, which can prevent the positioning convex ring 6 from protruding above the base 1, and the appearance is more neat and beautiful.

[0044] Further, as Figure 1 , Figure 4 and Figure 5 shown, it further includes a lower cushion block 10. The lower cushion block 10 is arranged at the bottom of the base 1 and is located around the installation hole 8. The distance between the bottom surface of the annular positioning groove 9 and the lower end surface of the lower cushion block 10 is L1, and the distance between the lower end surface of the positioning convex ring 6 and the bottom surface of the annular positioning groove 9 is L2, and L1≥L2. By arranging the lower cushion block 10, the height of the positioning sleeve 2 below the positioning convex ring 6 can be increased. When the upper cushion block 7 contacts the lower end surface of the positioning convex ring 6, the positioning sleeve 2 can be inserted into the installation hole 8 to play a limiting role. When the upper cushion block 7 is separated from the positioning convex ring 6, the positioning sleeve 2 can also be inserted into the installation hole 8 to play a limiting role. At this time, the lower end surface of the positioning sleeve 2 is flush with or above the lower end surface of the lower cushion block 10, and the stability is better.

[0045] Further, as Figure 1 , Figure 4 and Figure 5 shown, the number of the lower cushion blocks 10 is at least two, and all the lower cushion blocks 10 are evenly arranged along the circumferential direction of the installation hole 8. The force on the base 1 is uniform and the stability is better. The number of the lower cushion blocks 10 is preferably three. On the premise of meeting the support requirements, the number of the lower cushion blocks 10 is reduced as much as possible, the structure is simpler, and the cost can be saved.

[0046] Further, as Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 6 and Figure 7 , it further includes a support base 11 and an adjusting rod 12. The support base 11 is arranged on the base 1 and is located outside the pressing block 3. The adjusting rod 12 is threadedly connected to the support base 11. The inner end of the adjusting rod 12 is rotatably connected to the pressing block 3. The outer end of the adjusting rod 12 is located outside the support base 11. After the adjusting rod 12 rotates, it drives the pressing block 3 to approach or move away from the positioning sleeve 2. By rotating the adjusting rod 12, the inner end of the adjusting rod 12 can approach or move away from the positioning sleeve 2, thereby driving the pressing block 3 to move synchronously closer to or away from the positioning sleeve 2. After the adjusting rod 12 stops rotating, the pressing block 3 can stay at the required position without moving. The structure is simple, the adjustment is convenient, fast, time-saving and labor-saving.

[0047] Furthermore, as shown in Figure 1 and Figure 5 it further includes a slider 13. A sliding groove 14 is formed on the upper end surface of the base 1. The pressing block 3 is located above the sliding groove 14. The slider 13 is arranged at the bottom of the pressing block 3 and forms a sliding fit with the sliding groove 14. During the movement of the pressing block 3, the slider 13 slides along the sliding groove 14, which can play a role of guiding and limiting to prevent the slider 13 from shifting.

[0048] Furthermore, as shown in Figure 2 , Figure 3 , Figure 6 and Figure 7 it further includes an annular positioning line 15. The positioning line 15 is arranged on the upper end surface of the base 1. The number of the positioning lines 15 is at least two, and all the positioning lines 15 are coaxially arranged with the positioning sleeve 2. Each positioning line 15 corresponds to a lower flange 19 with a specific outer diameter. When adjusting the pressing block 3, it only needs to align the pressing block 3 with the corresponding positioning line 15, which can better ensure the coaxial arrangement of the lower flange 19 and the positioning sleeve 2.

[0049] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 it further includes a lifting ring 16. The lifting ring 16 is arranged on the base 1. The two lifting rings 16 are symmetrically arranged along the radial direction of the positioning sleeve 2, which is convenient for flipping, adjusting the height and carrying the swing welding device by using the lifting rings 16.

[0050] Furthermore, as shown in Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, an air duct flange marking hole 17 and a chemical dosing flange marking hole 18 are provided on the base 1. The air duct flange marking hole 17 and the chemical dosing flange marking hole 18 are both located outside the positioning sleeve 2 and are symmetrically arranged along the radial direction of the positioning sleeve 2. An air duct flange 22 and a chemical dosing flange 23 are provided on the side wall at the upper end of the main pipe 20, and an upper flange 24 is provided at the top of the main pipe 20. The clamping between the center point of the air duct flange marking hole 17, the center point of the positioning sleeve 2 and the center point of the chemical dosing flange marking hole 18 is α, and the included angle α corresponds to the included angle between the axis of the air duct flange 22 and the axis of the chemical dosing flange 23. During swing welding, make the axis of the air duct flange 22 pass through the center point of the air duct flange marking hole 17 and the axis of the chemical dosing flange 23 pass through the center point of the chemical dosing flange marking hole 18, then the included angle between the axis of the air duct flange 22 and the axis of the chemical dosing flange 23 can reach the required size. As Figure 7 shown, the four air duct flange marking holes 17 and the four chemical dosing flange marking holes 18 correspond to four different included angles α. During swing welding, select the corresponding air duct flange marking hole 17 and chemical dosing flange marking hole 18 as a reference according to the included angle between the axis of the air duct flange 22 and the axis of the chemical dosing flange 23.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A flotation machine casing frame swing welding device, used for positioning a lower flange (19) and a main pipe (20), characterized in that: include, Base (1), A positioning sleeve (2), the positioning sleeve (2) being arranged on the base (1), and an annular slot (4) being provided on the positioning sleeve (2) for inserting the main pipe (20); A tightening block (3), the tightening block (3) being arranged on the base (1), the number of the tightening blocks (3) being at least two, all of the tightening blocks (3) being arranged around the positioning sleeve (2), and a clamping cavity of the lower flange (19) being left between the tightening block (3) and the positioning sleeve (2).

2. A flotation machine casing frame swing welding device according to claim 1, characterized in that: The base (1) is provided with a mounting hole (8), the positioning sleeve (2) is inserted into the mounting hole (8), and further comprises: A positioning shaft (5), the positioning shaft (5) being arranged on the base (1) and located outside the mounting hole (8); A positioning convex ring (6), wherein the positioning convex ring (6) is arranged on the periphery of the positioning sleeve (2); An upper pad (7), the upper pad (7) being rotatably mounted on the positioning shaft (5) and being located above the base (1); the upper pad (7) being in contact with the lower end surface of the positioning convex ring (6) after rotation, and being used to support the positioning convex ring (6).

3. A flotation machine casing frame swing welding device according to claim 2, characterized in that: An annular positioning groove (9) is provided on the upper end surface of the base (1), the annular positioning groove (9) is located outside the mounting hole (8), the inner diameter of the annular positioning groove (9) is equal to the diameter of the mounting hole (8), the outer diameter of the annular positioning groove (9) is greater than or equal to the outer diameter of the positioning convex ring (6), and the positioning shaft (5) is located outside the annular positioning groove (9).

4. A flotation machine casing frame swing welding device according to claim 3, characterized in that: It also includes a lower pad (10), which is arranged at the bottom of the base (1) and located outside the mounting hole (8), the distance between the bottom surface of the annular positioning groove (9) and the lower end surface of the lower pad (10) is L1, and the distance between the lower end surface of the positioning protruding ring (6) and the bottom surface of the annular positioning groove (9) is L2, and L1≥L2.

5. A flotation machine casing frame swing welding device according to claim 4, characterized in that: The number of the lower pads (10) is at least two, and all of the lower pads (10) are evenly arranged along the circumferential direction of the mounting hole (8).

6. The flotation machine casing frame swing welding device according to claim 1, characterized in that: Also includes, A support seat (11), the support seat (11) being arranged on the base (1) and located outside the tightening block (3); An adjusting rod (12), wherein the adjusting rod (12) is threadedly connected to the support seat (11), the inner end of the adjusting rod (12) is rotatably connected to the pressing block (3), and the outer end of the adjusting rod (12) is located outside the support seat (11). When the adjusting rod (12) rotates, it drives the pressing block (3) to move closer to or away from the positioning sleeve (2).

7. A flotation machine casing frame swing welding device according to claim 6, characterized in that: It also includes a sliding block (13), a sliding groove (14) is provided on the upper end surface of the base (1), the tightening block (3) is located above the sliding groove (14), and the sliding block (13) is arranged at the bottom of the tightening block (3) and forms a sliding fit with the sliding groove (14).

8. The flotation machine casing frame swing welding device according to claim 1, characterized in that: It also comprises a circular positioning line (15), wherein the positioning line (15) is arranged on the upper end surface of the base (1), the number of the positioning lines (15) is at least two, and all the positioning lines (15) are coaxially arranged with the positioning sleeve (2).

9. The flotation machine casing frame swing welding device according to claim 1, characterized in that: It also comprises a lifting ring (16), wherein the lifting ring (16) is arranged on the base (1).

10. The flotation machine casing frame swing welding device according to claim 1, characterized in that: The base (1) is provided with an air duct flange marking hole (17) and a dosing flange marking hole (18); the air duct flange marking hole (17) and the dosing flange marking hole (18) are both located on the periphery of the positioning sleeve (2) and are symmetrically arranged along the radial direction of the positioning sleeve (2).

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