Welding supporting tool for input pipe assembly of condenser

Abstract

The utility model discloses a welding supporting tool for an input pipe assembly of a condenser, and relates to the technical field related to heat exchange. The welding device comprises a base, a working table, clamping assemblies, a center plate and a welding ring, the working table is arranged above the base, and the two clamping assemblies are symmetrically and transversely arranged at the upper end of the working table in a sliding mode; and two welding rings are arranged between the two clamping assemblies, the two welding rings are each slidably sleeved with an arc sleeve, a first sleeve and a second sleeve are jointly fixed between the two arc sleeves, a welding gun is inserted into the first sleeve, and a nitrogen pipe is fixed into the second sleeve. By arranging the welding ring, the clamping assembly, the workbench, the base, the arc sleeve, the nitrogen pipe and the welding gun, the problem that manual welding treatment is not stable enough is solved; the problems that deviation is prone to occurring, the welding height of a welding tool cannot be adjusted and changed, nitrogen protection and a welding gun are inconvenient to keep synchronous during welding, and the same welding tool is inconvenient to weld input pipes of multiple sizes are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to heat exchange, and particularly relates to a welding support tooling for a condenser input pipe assembly. Background Art

[0002] The condenser is a key heat exchange device. Its main function is to achieve a cooling effect by transferring the heat of the gas or steam to a cooling medium (such as water or air). For most condensers, the gas must pass through a long tube (usually coiled into a solenoid) to allow the heat to dissipate into the surrounding air. Thermally conductive metals such as copper are often used to transport steam. In order to improve the efficiency of the condenser, heat sinks are often attached to the pipes to accelerate heat dissipation. The coils (solenoids) of these condensers have an inlet and an outlet, which are connected to the input and output pipes respectively. The input and output pipes are installed by welding later, but the input pipe still has the following disadvantages in the actual welding process:

[0003] First, because the condenser tubes of the condenser are mostly coils, and the input pipes connected to them usually have flanges and other structures, welding is required. However, because the input pipe of the condenser has a certain height and there is no corresponding support part for the input pipe, it can only be welded manually. Manual welding may result in inaccurate docking, not being on the same central axis, welding deviation, and inconsistent welding position.

[0004] Secondly, during the welding process, because the height position of the condenser is uncertain, the height position of the input pipe is uncertain, and usually a specific height is required to assist the welding process. Usually, the welding tooling has a fixed height setting and the height position of the support cannot be changed;

[0005] Welding usually requires nitrogen protection, but you can't get too close, and manual processing may be out of sync with the welding gun;

[0006] For different types of condensers, the sizes of the condenser tubes and inlet tubes are also inconsistent, so a single-size welding tool cannot be used;

[0007] Finally, for input pipes with different inner diameters, the welding position also needs to be changed accordingly, and the welding gun needs to be kept at a certain distance from the input pipe to ensure stable welding. Utility Model Content

[0008] The utility model aims to provide a welding support tool for a condenser input pipe assembly. By arranging a welding ring, a clamping assembly, a workbench, a base, an arc sleeve, a nitrogen pipe and a welding gun, the utility model solves the problems that manual welding is not stable enough and is prone to deviation, the welding height of the welding tool cannot be adjusted, the nitrogen protection is not convenient to keep synchronized with the welding gun during welding, and the same welding tool is not convenient for welding input pipes of multiple sizes.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is a welding support tool for a condenser input pipe assembly, comprising a base, a workbench, a clamping assembly, a center plate and a welding ring. A workbench is arranged above the base, and two clamping assemblies are symmetrically and laterally slidably arranged on the upper end of the workbench.

[0011] The clamping assembly comprises a column, and two base blocks are fixed on one side of the column close to the center of the workbench, and an arc clamp is commonly arranged in the two base blocks, and a screw is rotatably connected to the outer arc surface of the arc clamp;

[0012] Two welding rings are arranged between the two clamping assemblies, arc sleeves are slidably sleeved on the two welding rings, and the two arc sleeves are symmetrically arranged, sleeve one and sleeve two are fixed between the two arc sleeves, a welding gun is inserted in sleeve one, and a nitrogen pipe is fixed in sleeve two.

[0013] Furthermore, symmetrically distributed limit columns are fixed to the upper ends of both ends of the base, and the upper parts of the limit columns penetrate the workbench upward and extend out, a stud is rotatably connected to the center of the inner bottom surface of the base, and a handwheel is fixed outside the stud, and the upper end of the stud is threaded into the workbench.

[0014] Furthermore, two symmetrical slide grooves are provided at the upper end of the workbench, and a slider is fixed at the bottom of the column, and the slider is slidably arranged in the slide groove.

[0015] Furthermore, an adjustment groove is arranged on the workbench between the two slide grooves, a center plate is longitudinally slidably arranged in the adjustment groove, two groups of vertical poles are symmetrically fixed on the upper end of the center plate, two welding rings are located between the two groups of vertical poles, two support rods are fixed on the outer periphery of the vertical poles, and one end of the support rod away from the vertical poles is fixedly connected to the outer curved surface of the welding ring.

[0016] Furthermore, one end of the screw rod away from the arc clamp is threaded through the end of the base block and extends out, and both long sides of the arc clamp are provided with slots, and the slots are connected to the side of the inner cavity of the base block, and both ends of the arc clamp extend out of the base block.

[0017] Furthermore, a bolt is threadedly connected to the circumference of the sleeve 1, and the tail end of the bolt extends into the sleeve 1 and contacts the outer circumference of the welding gun.

[0018] Furthermore, notches are provided at positions of the two arc sleeves that are separated from each other, and the width of the notches is larger than the diameter of the support rod and smaller than the cross-sectional diameter of the welding ring.

[0019] The utility model has the following beneficial effects:

[0020] The utility model solves the problem that manual welding is not stable enough and is prone to deviation by arranging a welding ring and a clamping assembly. During welding, one clamping assembly clamps the end of the condenser tube, and the other clamping assembly clamps the input tube, so that the ends of the two are aligned, and the position of the center plate is slightly adjusted so that the welding ring and the center of the input tube are on the same axis. Then, a welding gun is used to weld the connection between the condenser tube and the input tube, and then the arc sleeve is controlled to rotate along the welding ring, so as to ensure a stable circle of welding of the connection between the condenser tube and the input tube, with higher stability and more precise welding position.

[0021] The utility model solves the problem that the welding height of the welding tool cannot be adjusted by arranging a workbench and a base; the studs at the bottom of the rotating workbench are threadedly connected to the workbench, so when the position of the base remains unchanged, the workbench can be raised and lowered, thereby appropriately changing the working height of the workbench.

[0022] The utility model solves the problem that it is inconvenient to keep nitrogen protection synchronized with the welding gun during welding by arranging a welding ring, an arc sleeve, a nitrogen pipe and a welding gun; a sleeve one and a sleeve two are arranged between the two arc sleeves, the welding gun is fixed in the sleeve one, and the nitrogen pipe is fixed in the sleeve two; when the arc sleeve moves, the welding gun and the nitrogen pipe move synchronously, thereby ensuring accurate nitrogen protection.

[0023] The utility model solves the problem that the same welding tool is inconvenient to use for welding input pipes of various sizes by arranging a workbench and a clamping assembly; in the clamping assembly, a rotating screw rod can move the arc clamp, so as to cooperate with the inner arc surface of the base block to clamp the input pipe, etc., and the amount of screwing of the arc clamp is controlled according to the inner diameter of the input pipe, so that the maximum diameter of the clamped input pipe does not exceed the diameter of the arc clamp.

[0024] The utility model solves the problem that the welding position of the welding gun cannot be adjusted by arranging the sleeve and the welding gun; the welding gun can be extended and retracted to a certain extent in the sleeve, and the position of the welding gun can be determined after the bolt is screwed in to abut against the welding gun, so that the distance between the welding gun and the input pipe port can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0026] Figure 1 A three-dimensional diagram of a welding support tool for a condenser input pipe assembly;

[0027] Figure 2 This is the structural diagram of the base and workbench;

[0028] Figure 3 This is the connection diagram between the workbench and the base after sectioning;

[0029] Figure 4 is a structural diagram of the clamping assembly;

[0030] Figure 5 This is the structural diagram of the arc clamp;

[0031] Figure 6 It is the connection diagram of welding ring and center plate;

[0032] Figure 7 for Figure 6 The structural diagram after the arc sleeve is removed;

[0033] Figure 8 This is the connection diagram between the arc sleeve, welding gun and nitrogen pipe.

[0034] Reference numerals:

[0035] 1. Base; 101. Limit column; 102. Stud; 1021. Handwheel; 2. Workbench; 201. Slide; 202. Adjustment slot; 3. Clamping assembly; 301. Column; 302. Base block; 303. Slider; 304. Arc clamp; 3041. Slot; 305. Screw; 4. Center plate; 401. Vertical pole; 402. Support rod; 5. Welding ring; 501. Arc sleeve; 5011. Notch; 502. Sleeve 1; 5021. Bolt; 503. Welding gun; 504. Sleeve 2; 505. Nitrogen pipe. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] See also Figure 1-8 As shown, the utility model is a welding support tool for a condenser input pipe assembly, comprising a base 1, a workbench 2, a clamping assembly 3, a center plate 4 and a welding ring 5. The workbench 2 is arranged above the base 1, and two clamping assemblies 3 are symmetrically and laterally slidably arranged on the upper end of the workbench 2;

[0038] The base 1 is placed on the ground for support, and the workbench 2 is used for welding processing. During welding, one clamping assembly 3 clamps the end of the condenser tube, and another clamping assembly 3 clamps the input tube;

[0039] The clamping assembly 3 includes a column 301, and two base blocks 302 are fixed on one side of the column 301 close to the center of the workbench 2. An arc clamp 304 is provided in the two base blocks 302, and a screw rod 305 is rotatably connected to the outer arc surface of the arc clamp 304;

[0040] When clamping the input tube, place it in the inner cavity of the two base blocks 302, and then rotate the screw 305 to make the arc clamp 304 close to the input tube until the input tube is stably clamped;

[0041] Two welding rings 5 ​​are arranged between the two clamping components 3. Arc sleeves 501 are slidably sleeved on the two welding rings 5. The two arc sleeves 501 are symmetrically arranged. A sleeve 1 502 and a sleeve 2 504 are fixed between the two arc sleeves 501. A welding gun 503 is inserted into the sleeve 1 502. A nitrogen pipe 505 is fixed in the sleeve 2 504.

[0042] During the welding process, the welding position is located at the center between the two welding rings 5, and the connection between the condenser and the input pipe is aligned. At this time, the welding gun 503 is adjusted to be close to the connection between the condenser and the input pipe. Subsequently, nitrogen is supplemented synchronously (the nitrogen pipe 505 is connected to an external nitrogen gas source to export nitrogen). After the welding work, the connection between the condenser and the input pipe is welded. At this time, the arc sleeve 501 is slowly rotated on the welding ring 5, and the welding gun 503 is welded along the outer periphery of the connection between the condenser and the input pipe. After the arc sleeve 501 rotates one circle, the welding of the connection between the condenser and the input pipe is completed.

[0043] The upper ends of both ends of the base 1 are fixed with symmetrically distributed limit columns 101, and the upper parts of the limit columns 101 penetrate the workbench 2 upward and extend out, a stud 102 is rotatably connected at the center of the inner bottom surface of the base 1, and a hand wheel 1021 is fixed outside the stud 102, and the upper end of the stud 102 is screwed into the workbench 2;

[0044] By rotating the stud 102 through the hand wheel 1021, the stud 102 rotates in place, and the height of the workbench 2 can be changed. Because of the plug-in limit of the limit column 101, the workbench 2 can only be raised and lowered horizontally, but cannot be rotated.

[0045] Two symmetrical slide grooves 201 are provided at the upper end of the workbench 2, and a slider 303 is fixed at the bottom of the column 301, and the slider 303 is slidably disposed in the slide groove 201;

[0046] The column 301 can stably slide in the slide groove 201 through the slider 303, so as to change the distance between the two columns 301, so as to facilitate the close alignment of the connection between the condenser tube and the input tube, and is also suitable for use with input tubes of different lengths, and has a certain adjustment function.

[0047] An adjustment slot 202 is provided on the workbench 2 between the two slide slots 201, a center plate 4 is longitudinally slidably provided in the adjustment slot 202, two groups of vertical poles 401 are symmetrically fixed on the upper end of the center plate 4, two welding rings 5 ​​are located between the two groups of vertical poles 401, two support rods 402 are fixed on the outer periphery of the vertical poles 401, and one end of the support rod 402 away from the vertical pole 401 is fixedly connected to the outer curved surface of the welding ring 5;

[0048] Place the center plate 4 in the adjustment groove 202. After clamping input tubes of different sizes, the center of the welding ring 5 and the center of the input tube may be offset to a certain extent, so the center plate 4 needs to be slightly moved to align the central axis of the welding ring 5 with the central axis of the input tube.

[0049] One end of the screw rod 305 away from the arc clamp 304 is threadedly penetrated through the end of the base block 302 and extends out. The arc clamp 304 is provided with a clamping groove 3041 on both long sides, and the clamping groove 3041 is clamped on the side of the inner cavity of the base block 302. The two ends of the arc clamp 304 extend out of the base block 302.

[0050] The screw rod 305 is controlled to rotate so as to move closer to or farther from the inner cavity of the base block 302 , thereby changing the position of the arc clamp 304 . The arc clamp 304 cooperates with the limit of the slot 3041 so as to maintain stable movement when the screw rod 305 is controlled.

[0051] The circumferential side of the sleeve 502 is threadedly connected with a bolt 5021, and the tail end of the bolt 5021 extends into the sleeve 502 and contacts the outer periphery of the welding gun 503; the welding gun 503 can move inside the sleeve 502, and after the position of the welding gun 503 is determined, the bolt 5021 can be screwed on to make the bolt 5021 press against the welding gun 503 to complete the position determination.

[0052] The two arc sleeves 501 are provided with slots 5011 at positions opposite to each other, and the width of the slots 5011 is larger than the diameter of the support rod 402 and smaller than the cross-sectional diameter of the welding ring 5;

[0053] The notch 5011 is provided so that the arc sleeve 501 will not touch the support rod 402 and cause motion interference when rotating outside the welding ring 5 .

[0054] The specific working principle of the utility model is as follows: first, the base 1 is placed on the ground, and the stud 102 is rotated by the hand wheel 1021, and the stud 102 rotates in situ to change the height of the workbench 2, so that the position of the arc clamp 304 is adapted to the height of the tube mouth of the condenser. One clamping assembly 3 clamps the end of the condenser, and the other clamping assembly 3 clamps the input tube. Then, when clamping the input tube, it is placed in the inner cavity of the two base blocks 302, and then the screw 305 is rotated to make the arc clamp 304 close to the input tube until the input tube is stably clamped. The other clamping assembly 3 clamps the tube mouth of the condenser in the same way, and then the column 301 is stably moved in the slide groove 201 through the slider 303. Slide regularly to change the distance between the two columns 301, align the connection between the condenser and the input pipe, and then slightly move the center plate 4 to align the central axis of the welding ring 5 and the central axis of the input pipe; finally, the welding gun 503 moves in the sleeve 502, and after determining the position of the welding gun 503, screw the bolt 5021 to make it close to the welding gun 503, and replenish nitrogen simultaneously. After the welding work, weld the connection between the condenser and the input pipe. At this time, slowly rotate the arc sleeve 501 on the welding ring 5, and the welding gun 503 will weld along the outer periphery of the connection between the condenser and the input pipe. After the arc sleeve 501 rotates one circle, the welding of the connection between the condenser and the input pipe is completed.

[0055] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A condenser inlet pipe assembly welding support tool, comprising a base (1), a workbench (2), a clamping assembly (3), a center plate (4) and a welding ring (5), characterized in that: A workbench (2) is arranged above the base (1), and two clamping assemblies (3) are symmetrically and laterally slidably arranged on the upper end of the workbench (2); The clamping assembly (3) comprises a column (301), two base blocks (302) are fixed on one side of the column (301) close to the center of the workbench (2), an arc-shaped clamp (304) is provided in both base blocks (302), and a screw rod (305) is rotatably connected to the outer arc surface of the arc-shaped clamp (304); Two welding rings (5) are arranged between the two clamping assemblies (3); arc sleeves (501) are slidably sleeved on the two welding rings (5), and the two arc sleeves (501) are symmetrically arranged; a sleeve 1 (502) and a sleeve 2 (504) are fixed between the two arc sleeves (501); a welding gun (503) is inserted into the sleeve 1 (502), and a nitrogen pipe (505) is fixed in the sleeve 2 (504).

2. A condenser inlet pipe assembly welding support tooling according to claim 1, characterized in that: The upper ends of both ends of the base (1) are fixed with symmetrically distributed limiting columns (101), and the upper parts of the limiting columns (101) penetrate the workbench (2) upward and extend out, a stud (102) is rotatably connected at the center of the inner bottom surface of the base (1), and a hand wheel (1021) is fixed outside the stud (102), and the upper end of the stud (102) is screwed into the workbench (2).

3. The welding support tool for a condenser inlet pipe assembly according to claim 1, characterized in that: Two symmetrical slide grooves (201) are provided at the upper end of the workbench (2), and a slider (303) is fixed at the bottom of the column (301), and the slider (303) is slidably arranged in the slide groove (201).

4. A condenser inlet pipe assembly welding support tooling according to claim 3, characterized in that: An adjustment groove (202) is provided on the workbench (2) between the two slide grooves (201), a center plate (4) is longitudinally slidably provided in the adjustment groove (202), two groups of vertical poles (401) are symmetrically fixed on the upper end of the center plate (4), two welding rings (5) are located between the two groups of vertical poles (401), two support rods (402) are fixed on the outer periphery of the vertical poles (401), and one end of the support rod (402) away from the vertical poles (401) is fixedly connected to the outer curved surface of the welding ring (5).

5. The welding support tool for a condenser inlet pipe assembly according to claim 1, characterized in that: One end of the screw rod (305) away from the arc-shaped clamp (304) is threadedly penetrated through the end of the base block (302) and protrudes out; both long sides of the arc-shaped clamp (304) are provided with clamping grooves (3041), and the clamping grooves (3041) are clamped to the outside of the side surface of the inner cavity of the base block (302); and both ends of the arc-shaped clamp (304) protrude outside the base block (302).

6. The welding support tool for a condenser inlet pipe assembly according to claim 1, characterized in that: The circumferential side of the sleeve (502) is threadedly connected with a bolt (5021), and the rear end of the bolt (5021) extends into the sleeve (502) and contacts the outer circumference of the welding gun (503).

7. The welding support tool for a condenser inlet pipe assembly according to claim 4, characterized in that: Notches (5011) are provided at positions of the two arc sleeves (501) that are separated from each other. The width of the notches (5011) is greater than the diameter of the support rod (402) and smaller than the cross-sectional diameter of the welding ring (5).

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