Welding and positioning tool for end socket of heat exchanger

Abstract

The utility model relates to the field of heat exchanger end socket welding, in particular to a heat exchanger end socket welding positioning tool which comprises a bottom plate, a supporting vertical plate, a positioning vertical plate and an inclined support are fixedly arranged on the bottom plate, the supporting vertical plate is vertically arranged at one end of the bottom plate, and the positioning vertical plate is fixedly arranged at the other end of the bottom plate. The inclined support and the positioning vertical plate are located at the other end of the bottom plate, and the supporting vertical plate and the positioning vertical plate are parallel to each other and face the center of the bottom plate; a limiting baffle is further fixedly arranged on one side of the bottom plate, a clamping device is arranged at the position, right opposite to the limiting baffle, of the other side of the bottom plate, the clamping device and the limiting baffle are both located in the area between the supporting vertical plate and the positioning vertical plate, and the supporting vertical plate is located in the area between the limiting baffle and the clamping device. The welding fixture is simple in structure and convenient to operate, can quickly position and clamp the heat exchanger end socket and the heat exchanger core, and ensures stable welding quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger head welding field, concretely relates to a heat exchanger head welding positioning tool. BACKGROUND

[0002] The heat exchanger is used for heat exchange cooling in the ring control system, is widely used in the ring control system of chemical industry, electron, aviation and other industries, through adjusting the temperature of the ring control system, makes each system can be in normal working state. The head of the heat exchanger as the interface of heat exchanger and system pipeline connection, its welding quality will directly influence the installation and operation of heat exchanger, because the head of heat exchanger and the core of heat exchanger are welded structure, there is welding deformation when welding, if welding deformation is larger, it will not satisfy the subsequent assembly and use requirement, needs welding positioning tool when welding to position, clamp the head of heat exchanger, guarantees the size after welding to meet the requirement of design drawing, therefore needs to design a set of welding positioning tool for heat exchanger head welding. SUMMARY

[0003] In order to solve the above problem, the utility model provides a kind of heat exchanger head welding positioning tool that simple, easy to operate, can realize quick positioning, clamping.

[0004] The utility model discloses a heat exchanger head welding positioning tool, including bottom plate, fixedly arranged with support vertical board, positioning vertical board and inclined support on the bottom plate, the support vertical board is vertically arranged on one end of bottom plate, the inclined support and positioning vertical board are located on the other end of bottom plate, the support vertical board and positioning vertical board are parallel to each other, and are arranged towards the center of bottom plate;

[0005] The side of the bottom plate is also fixedly provided with a limiting baffle, and a clamping device is arranged on the other side of the bottom plate opposite to the position of the limiting baffle, the clamping device and the limiting baffle are located in the region between the support vertical plate and the positioning vertical plate, and the support vertical plate is located in the region between the limiting baffle and the clamping device.

[0006] The support vertical plate is fixedly provided with a support for connecting the mounting seat on the heat exchanger head, the support is horizontally arranged, and one end of the support away from the support vertical plate is arranged towards the center of the bottom plate; bosses are arranged on both sides of the support, threaded holes are arranged on the bosses, and bolts are connected into the threaded holes and used for pressing the mounting seat on the heat exchanger head.

[0007] Two first positioning devices are further arranged on the bottom plate and used for connecting the heating pipe joints on both sides of the mounting seat on the heat exchanger head.

[0008] The second positioning device for connecting the cold edge outlet joint of the heat exchanger head is arranged on the positioning vertical plate.

[0009] The support vertical plate is provided with a third positioning device for connecting the flange on the upper interface of the heat exchanger head;

[0010] The inclined support is provided with a fourth positioning device for connecting the upper cold edge inlet joint of the heat exchanger head;

[0011] The third positioning device is located above the support.

[0012] Preferably, the clamping device comprises a fixed push plate fixedly arranged on the bottom plate, and a plurality of push rods are arranged on the fixed push plate and extend towards the center of the bottom plate and are threadedly connected with the fixed push plate.

[0013] Preferably, one end of the push rod towards the center of the bottom plate is connected with a gasket plate.

[0014] Preferably, the first positioning device comprises a first positioning through hole arranged on the bottom plate and a first positioning shaft arranged vertically, one end of the first positioning shaft extends into the first positioning through hole and is fixedly connected with the bottom plate through a first connecting flange arranged at the bottom of the bottom plate;

[0015] The first connecting flange is fixedly connected with the bottom plate, the first connecting flange is fixedly connected with one end of the first positioning shaft extending into the first positioning through hole through a screw, and a first positioning seat is fixedly connected to the other end of the first positioning shaft, and a first columnar protrusion matched with the heating pipe joint is arranged on one end of the first positioning seat away from the bottom plate;

[0016] A plurality of pressing devices for pressing the heating pipe joint are uniformly arranged on one side of the first positioning seat close to the heating pipe joint along the circumference of the first columnar protrusion.

[0017] Preferably, the pressing device comprises a pressing piece, one end of the pressing piece is fixedly connected with the first positioning seat through a bolt, and the other end of the pressing piece is pressed against the annular eaves of the end portion of the heating pipe joint behind the sleeve joint columnar protrusion.

[0018] Preferably, the second positioning device comprises a second positioning shaft, a second positioning through hole is arranged on the positioning vertical plate, one end of the second positioning shaft extends into the second positioning through hole, and the positioning vertical plate is fixedly connected with the second positioning shaft through a second connecting flange arranged on the side of the positioning vertical plate away from the support vertical plate;

[0019] The second connecting flange is fixedly connected with the positioning vertical plate, the second connecting flange is fixedly connected with one end of the second positioning shaft extending into the second positioning through hole through a screw, and a second positioning flange is fixedly connected to the other end of the second positioning shaft through a screw, a second columnar protrusion matched with the cold edge outlet joint of the heat exchanger head is arranged on the side of the second positioning flange away from the second positioning shaft, and a second limiting ring table is further arranged on one end of the second columnar protrusion close to the second positioning shaft;

[0020] The second positioning shaft end is further provided with a first locking and limiting device for fastening the heat exchanger head cold side outlet joint to the second cylindrical protrusion.

[0021] Preferably, the first locking and limiting device is a first annular sleeve, which comprises two arc-shaped first sleeve bodies arranged in two parts, and the two ends of the two arc-shaped first sleeve bodies are connected by bolts respectively;

[0022] The inner ring surface of the first annular sleeve is a first inner tapered surface, which matches the tapered outer peripheral surface of the heat exchanger head cold side outlet joint, and at least two first jacks are uniformly distributed on one end of the first annular sleeve close to the positioning vertical plate, the first jacks are threadedly connected with the first annular sleeve, and are horizontally arranged, and the end of the first jack extending into the first annular sleeve abuts against one side of the second positioning flange close to the second connecting flange; by rotating the first jack, the first inner tapered surface on the first annular sleeve is pressed against or away from the tapered outer peripheral surface of the heat exchanger head cold side outlet joint.

[0023] Preferably, the third positioning device comprises a third positioning shaft, which is horizontally arranged, one end of the third positioning shaft extends into a third positioning through hole arranged on the supporting vertical plate, and the third positioning shaft is fixedly connected with the supporting vertical plate through a third connecting flange arranged on one side of the supporting vertical plate away from the positioning vertical plate;

[0024] The third connecting flange is fixedly connected with the supporting vertical plate, the third connecting flange is fixedly connected with one end of the third positioning shaft extending into the third positioning through hole through a screw, and the other end of the third positioning shaft is fixedly connected with a third positioning flange through a screw, one side of the third positioning flange away from the third positioning shaft is provided with a third cylindrical protrusion matching an inner hole of the upper interface flange of the heat exchanger head, a plurality of limiting blocks are uniformly distributed along the circumference of the third cylindrical protrusion on the third positioning flange, one side of the limiting blocks facing each other is provided with a groove for clamping the edge of the upper interface flange of the heat exchanger head, and a pressing bolt extending into the groove and pressing the third positioning flange and the upper interface flange of the heat exchanger is further arranged on the limiting block.

[0025] Preferably, the fourth positioning device comprises a fourth positioning shaft with a stepped shape, a fourth positioning through hole is arranged on the inclined support, the small end of the fourth positioning shaft matches and extends into the fourth positioning through hole, and a pull plate is arranged on one end of the fourth positioning through hole away from the fourth positioning shaft;

[0026] A fourth positioning flange is fixedly connected to the large end of the fourth positioning shaft, one side of the fourth positioning flange away from the fourth positioning shaft is provided with a fourth cylindrical protrusion matching the upper cold side inlet joint of the heat exchanger head, and a fourth limiting ring table is arranged on the fourth cylindrical protrusion close to the prepared end of the fourth positioning shaft;

[0027] The fourth positioning shaft end part is further provided with a second locking and limiting device for fastening the upper cold edge inlet joint of the heat exchanger head to the fourth cylindrical protrusion.

[0028] Preferably, the second locking and limiting device is a second annular sleeve, which comprises two arc-shaped sleeve bodies arranged in a split mode, and the two ends of the two arc-shaped sleeve bodies are connected by bolts respectively.

[0029] The inner ring surface of the second annular sleeve is a second inner taper surface, which matches the tapered outer peripheral surface of the upper cold edge inlet joint of the heat exchanger head, and at least two second jacks are uniformly distributed on the end of the second annular sleeve close to the inclined support, the second jacks are threadedly connected to the second annular sleeve, and the end of the second jack extending into the second annular sleeve abuts against the side of the fourth positioning flange close to the inclined support; by rotating the second jack, the second inner taper surface on the second annular sleeve is pressed against or away from the tapered outer peripheral surface of the upper cold edge inlet joint of the heat exchanger head.

[0030] A U-shaped pad block is arranged on the small end of the fourth positioning shaft between the shaft shoulder of the fourth positioning shaft and the inclined support.

[0031] The heat exchanger head and the heat exchanger core can be quickly positioned and clamped, and the welding quality is stable.

[0032] The utility model discloses a combined welding tool, which can be combined according to welding requirements, and has good flexibility.

[0033] The utility model discloses a welding positioning tool for quickly clamping and positioning the similar heat exchanger head and heat exchanger core, which can guarantee the welding quality and reduce the welding processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a structure diagram after the heat exchanger core and the head are welded.

[0035] Figure 2 It is Figure 1 The left view.

[0036] Figure 3 It is Figure 1 The rear view.

[0037] Figure 4 It is a plan view after the heat exchanger core and the head are clamped.

[0038] Figure 5 It is Figure 4 The A-A sectional view.

[0039] Figure 6 It is Figure 4 The B-B sectional view.

[0040] Figure 7 It is a schematic view for positioning the mounting seat on the heat exchanger head and the heat exchanger body.

[0041] Figure 8 It is a schematic view for positioning the mounting seat on the heat exchanger head and the heat exchanger body. Figure 7 It is a top view.

[0042] Figure 9 It is a schematic view for connecting the heating pipe joint and the first positioning seat.

[0043] Reference signs: 1 - heat exchanger head cold edge outlet joint, 2 - heating pipe joint, 3 - heat exchanger head upper interface flange, 4 - heat exchanger head cold edge inlet joint, 5 - heat exchanger head mounting seat;

[0044] 6 - bottom plate, 7 - first connecting flange, 8 - first positioning shaft, 9 - first positioning seat, 10 - second positioning flange, 11 - first annular clamping sleeve, 12 - second positioning shaft, 13 - second connecting flange, 14 - positioning vertical plate, 15 - cushion block, 16 - supporting vertical plate, 17 - support, 18 - third positioning shaft, 19 - third positioning flange, 20 - fourth positioning flange, 21 - second annular clamping sleeve, 22 - fourth positioning shaft, 23 - U-shaped cushion block, 24 - inclined support, 25 - pull plate, 26 - heat exchanger core body, 27 - fixed push plate, 28 - limiting baffle, 29 - cushion plate, 30 - pressing piece. DETAILED DESCRIPTION

[0045] The utility model relates to a heat exchanger head welding positioning tool, including bottom plate 6, the bottom plate 6 is fixedly provided with supporting vertical plate 16, positioning vertical plate 14 and inclined support 24, the supporting vertical plate 16 is vertically arranged on one end of bottom plate 6, the inclined support 24 and positioning vertical plate 14 are located on the other end of bottom plate 6, the supporting vertical plate 16 and positioning vertical plate 14 are parallel to each other, and are arranged towards the center of bottom plate 6;

[0046] The side of the bottom plate 6 is also fixedly provided with a limiting baffle 28, and the other side of the bottom plate 6 is provided with a clamping device opposite the position of the limiting baffle 28, the clamping device and the limiting baffle 28 are located in the area between the supporting vertical plate 16 and the positioning vertical plate 14, and the supporting vertical plate 16 is located in the area between the limiting baffle 28 and the clamping device;

[0047] The supporting vertical plate 16 is fixedly provided with a support 17 for connecting the heat exchanger head mounting seat 5, the support 17 is horizontally arranged, and one end of the support 17 away from the supporting vertical plate 16 is arranged towards the center of the bottom plate 6; bosses are arranged on both sides of the support 17, threaded holes are arranged on the bosses, and bolts are connected in the threaded holes and protrude towards each other for pressing the heat exchanger head mounting seat 5;

[0048] Two first positioning devices for connecting the heating pipe joints 2 on both sides of the mounting seat 5 on the heat exchanger head are arranged on the bottom plate 6.

[0049] A second positioning device for connecting the cold edge outlet joint 1 on the heat exchanger head is arranged on the positioning vertical plate 14.

[0050] A third positioning device for connecting the upper interface flange 3 on the heat exchanger head is arranged on the supporting vertical plate 16.

[0051] A fourth positioning device for connecting the cold edge inlet joint 4 on the heat exchanger head is arranged on the inclined support 24.

[0052] The third positioning device is located above the support 17.

[0053] The clamping device comprises a fixed push plate 27 fixedly arranged on the bottom plate 6, and a plurality of push rods penetrating through the fixed push plate 27 and extending towards the center of the bottom plate 6 are arranged on the fixed push plate 27, and the push rods are threadedly connected with the fixed push plate 27.

[0054] The end of the push rod towards the center of the bottom plate 6 is connected with a backing plate 29.

[0055] The first positioning device comprises a first positioning through hole arranged on the bottom plate 6 and a vertically arranged first positioning shaft 8, one end of the first positioning shaft 8 extends into the first positioning through hole, and the first positioning shaft 8 is fixedly connected with the bottom plate 6 through a first connecting flange 7 arranged at the bottom of the bottom plate 6.

[0056] The first connecting flange 7 is fixedly connected with the bottom plate 6, the first connecting flange 7 is fixedly connected with the end of the first positioning shaft 8 extending into the first positioning through hole through a screw, and the other end of the first positioning shaft 8 is fixedly connected with a first positioning seat 9, and the end of the first positioning seat 9 away from the bottom plate 6 is provided with a first columnar protrusion matched with the heating pipe joint 2.

[0057] A plurality of pressing devices for pressing the heating pipe joint 2 are uniformly distributed on one side of the first positioning seat 9 close to the heating pipe joint 2 along the circumference of the first columnar protrusion.

[0058] The pressing device comprises a pressing sheet 30, one end of the pressing sheet 30 is fixedly connected with the first positioning seat 9 through a bolt, and the other end of the pressing sheet 30 is pressed against the annular eaves of the end portion of the heating pipe joint 2 behind the sleeved columnar protrusion.

[0059] The second positioning device comprises a second positioning shaft 12, a second positioning through hole is arranged on the positioning vertical plate 14, one end of the second positioning shaft 12 extends into the second positioning through hole, and the second positioning shaft 12 is fixedly connected with the positioning vertical plate 14 through a second connecting flange 13 arranged on the side of the positioning vertical plate 14 away from the supporting vertical plate 16.

[0060] The second connecting flange 13 is fixedly connected with the positioning vertical plate 14, the second connecting flange 13 is fixedly connected with the second positioning shaft 12 through a screw at one end of the second positioning shaft 12 extending into the second positioning through hole, and the other end of the second positioning shaft 12 is fixedly connected with the second positioning flange 10 through a screw, one side of the second positioning flange 10 away from the second positioning shaft 12 is provided with a second cylindrical protrusion matched with the heat exchanger head cold edge outlet joint 1, and the other end of the second cylindrical protrusion close to the second positioning shaft 12 is further provided with a second limiting ring table.

[0061] The end of the second positioning shaft 12 is further provided with a first locking limiting device for fastening the heat exchanger head cold edge outlet joint 1 with the second cylindrical protrusion.

[0062] The first locking limiting device is a first annular clamping sleeve 11, the first annular clamping sleeve 11 comprises two arc-shaped first clamping sleeve bodies provided in a split manner, and the two ends of the two arc-shaped first clamping sleeve bodies are connected through bolts respectively;

[0063] The inner ring surface of the first annular clamping sleeve 11 is a first inner tapered surface, the first inner tapered surface is matched with the tapered outer peripheral surface of the heat exchanger head cold edge outlet joint 1, and at least two first jacks are uniformly distributed on the end of the first annular clamping sleeve 11 close to the positioning vertical plate 14, the first jacks are threadedly connected with the first annular clamping sleeve 11, and are horizontally arranged, and the end of the first jack extending into the first annular clamping sleeve 11 abuts against the side of the second positioning flange 10 close to the second connecting flange 13; by rotating the first jack, the first inner tapered surface on the first annular clamping sleeve 11 is pressed against or away from the tapered outer peripheral surface of the heat exchanger head cold edge outlet joint 1.

[0064] The third positioning device comprises a third positioning shaft 18, the third positioning shaft 18 is horizontally arranged, one end of the third positioning shaft 18 extends into the third positioning through hole arranged on the supporting vertical plate 16, and is fixedly connected with the supporting vertical plate 16 through the third connecting flange arranged on the side of the supporting vertical plate 16 away from the positioning vertical plate 14;

[0065] The third connecting flange is fixedly connected with the supporting vertical plate 16, the third connecting flange is fixedly connected with one end of the third positioning shaft 18 extending into the third positioning through hole through a screw, and the other end of the third positioning shaft 18 is fixedly connected with the third positioning flange 19 through a screw; one side of the third positioning flange 19 away from the third positioning shaft 18 is provided with a third cylindrical protrusion matched with the inner hole of the upper interface flange 3 of the heat exchanger head; a plurality of limiting blocks are uniformly distributed along the circumference of the third cylindrical protrusion on the third positioning flange 19; one side of the limiting blocks facing each other is provided with a groove for clamping the edge of the upper interface flange 3 of the heat exchanger head; and a pressing bolt extending into the groove and pressing the third positioning flange 19 and the upper interface flange of the heat exchanger is further provided on the limiting block; when the upper interface flange 3 of the heat exchanger head is located in the groove, the pressing bolt is rotated to press the upper interface flange 3 of the heat exchanger head on the third positioning flange 19.

[0066] The fourth positioning device includes a stepped fourth positioning shaft 22, the inclined support 24 is provided with a fourth positioning through hole, the small end of the fourth positioning shaft 22 matches the fourth positioning through hole, and the end of the fourth positioning through hole away from the fourth positioning shaft 22 is provided with a pull plate 25 blocked; the pull plate 25 is connected with the fourth positioning shaft 22 through a screw;

[0067] The large end of the fourth positioning shaft 22 is fixedly connected with the fourth positioning flange 20, one side of the fourth positioning flange 20 away from the fourth positioning shaft 22 is provided with a fourth cylindrical protrusion matched with the upper cold edge inlet connector 4 of the heat exchanger head; and a fourth limiting ring table is arranged on the fourth cylindrical protrusion close to the fourth positioning shaft 22;

[0068] The end of the fourth positioning shaft 22 is further provided with a second locking limiting device for tightly connecting the upper cold edge inlet connector 4 of the heat exchanger head with the fourth cylindrical protrusion.

[0069] The second locking limiting device is a second annular sleeve 21, the second annular sleeve 21 includes two arc-shaped sleeve bodies arranged in a split manner, and the two ends of the two arc-shaped sleeve bodies are connected through a screw respectively;

[0070] The inner ring surface of the second annular sleeve 21 is a second inner tapered surface, the second inner tapered surface matches the tapered outer peripheral surface of the upper cold edge inlet connector 4 of the heat exchanger head, and at least two second top rods are uniformly distributed on one end of the second annular sleeve 21 close to the inclined support 24; the second top rod is threadedly connected with the second annular sleeve 21, one end of the second top rod extending into the second annular sleeve 21 abuts against one side of the fourth positioning flange 20 close to the inclined support 24; the second inner tapered surface on the second annular sleeve 21 is pressed against or away from the tapered outer peripheral surface of the upper cold edge inlet connector 4 of the heat exchanger head by rotating the second top rod;

[0071] A U-shaped pad 23 is arranged between the shaft shoulder of the fourth positioning shaft 22 and the inclined support 24 and sleeved on the small end of the fourth positioning shaft 22.

[0072] The use steps of the utility model are as follows:

[0073] As Figure 8 described, first, the heat exchanger head upper mounting seat 5 is positioned by the support 17, then the heat exchanger core 26 is placed on the bottom plate 6, one end of the core is tightly matched with the heat exchanger head upper mounting seat 5, the one side of the core is tightly contacted with the limiting baffle 28, then the pad 29 is added on the other side of the core, the core is clamped by the push rod on the fixed push plate 27 tightly pressing the pad 29, finally, the heat exchanger head upper mounting seat 5 and the core side plate are welded by argon arc welding;

[0074] the third positioning flange 19 is used to assemble the third positioning shaft 18 to position the heat exchanger head upper interface flange 3, the heat exchanger head upper interface flange 3 and the third positioning flange 19 are clamped and tightly pressed by the limiting block, the limiting block is installed and the inner groove end face is tightly contacted with the heat exchanger head upper interface flange 3, the heat exchanger head upper interface flange 3 and the third positioning flange 19 are tightly pressed by the bolt, the head where the heat exchanger head upper interface flange 3 is located is the heat exchanger hot side outlet head, finally, the heat exchanger hot side outlet head and the upper end passage of the heat exchanger core 26 are welded by argon arc welding;

[0075] the first positioning seat 9 is used to assemble the first positioning shaft 8 to position the heating pipe joint 2 on the heat exchanger head cold side outlet head, the second positioning flange 10 is used to assemble the second positioning shaft 12 to position the heat exchanger head cold side outlet joint 1, the first annular clamping sleeve 11 is sleeved on the outer circular surface of the second positioning flange 10 and the heat exchanger head cold side outlet joint 1, the second positioning flange 10 and the heat exchanger head cold side outlet joint 1 are clamped by the screw on the first annular clamping sleeve 11, then the heating pipe joint 2 is tightly pressed by the pressing piece 30 on the first positioning seat 9 connected with one heating pipe joint 2, finally, the heat exchanger core 26 and the heat exchanger cold side outlet head are welded by argon arc welding;

[0076] the fourth positioning flange is used to assemble the fourth positioning shaft 22 to position the heat exchanger head cold side inlet joint 4 on the heat exchanger cold side inlet head, the U-shaped pad 15 is inserted between the fourth positioning shaft 22 and the end surface of the inclined support 24, the fourth positioning shaft 22 is tightly pulled by the pull plate 25, the second annular clamping sleeve 21 is sleeved on the outer circular surface of the fourth positioning flange 20 and the heat exchanger head cold side inlet joint 4, the third positioning flange 19 and the heat exchanger head cold side inlet joint 4 are clamped by the screw on the second annular clamping sleeve 21, then the heating pipe joint 2 is tightly pressed by the pressing piece 30 on the first positioning seat 9 connected with another heating pipe joint 2, finally, the heat exchanger core 26 and the heat exchanger cold side inlet head are welded by argon arc welding.

Claims

1. A heat exchanger head welding positioning tooling, comprising a base plate, characterized in that, The support vertical plate is vertically arranged on one end of the bottom plate, the inclined support and the positioning vertical plate are arranged on the other end of the bottom plate, the support vertical plate and the positioning vertical plate are parallel to each other and are arranged towards the center of the bottom plate; A limiting baffle is arranged on one side of the bottom plate, a clamping device is arranged on the other side of the bottom plate and faces the position of the limiting baffle, the clamping device and the limiting baffle are arranged in the region between the support vertical plate and the positioning vertical plate, and the support vertical plate is arranged in the region between the limiting baffle and the clamping device; A support for connecting the mounting seat on the heat exchanger head of the heat exchanger core is arranged on the support vertical plate, the support is horizontally arranged, and one end of the support away from the support vertical plate is arranged towards the center of the bottom plate; bosses are arranged on both sides of the support, threaded holes are arranged on the bosses, and bolts extending towards each other for pressing the mounting seat on the heat exchanger head are connected in the threaded holes; Two first positioning devices for respectively connecting the heating pipe joints on both sides of the mounting seat on the heat exchanger head are arranged on the bottom plate; A second positioning device for connecting the cold edge outlet joint of the heat exchanger head is arranged on the positioning vertical plate; A third positioning device for connecting the interface flange of the heat exchanger head is arranged on the support vertical plate; A fourth positioning device for connecting the cold edge inlet joint of the heat exchanger head is arranged on the inclined support; The third positioning device is arranged above the support.

2. The heat exchanger head welding positioning tooling of claim 1, wherein, The clamping device comprises a fixed push plate, the fixed push plate is fixedly arranged on the bottom plate, a plurality of push rods penetrating through the fixed push plate and extending towards the center of the bottom plate are arranged on the fixed push plate, and the push rods are threadedly connected with the fixed push plate.

3. The heat exchanger head welding positioning tooling of claim 2, wherein, One end of the push rod towards the center of the bottom plate is connected with a pad plate.

4. The heat exchanger head welding positioning tooling of claim 1, wherein, The first positioning device comprises a first positioning through hole arranged on the bottom plate and a first positioning shaft arranged vertically, one end of the first positioning shaft extends into the first positioning through hole and is fixedly connected with the bottom plate through a first connecting flange arranged on the bottom of the bottom plate; The first connecting flange is fixedly connected with the bottom plate, the first connecting flange is fixedly connected with one end of the first positioning shaft extending into the first positioning through hole through a screw, and a first positioning seat is fixedly connected to the other end of the first positioning shaft, a first columnar protrusion matched with the heating pipe joint is arranged on one end of the first positioning seat away from the bottom plate; A plurality of pressing devices for pressing the heating pipe joint are uniformly distributed on one side of the first positioning seat close to the heating pipe joint along the circumference of the first columnar protrusion.

5. The heat exchanger head welding positioning tooling of claim 4, wherein, The pressing device comprises a pressing piece, one end of the pressing piece is fixedly connected with the first positioning seat through a bolt, and the other end of the pressing piece is pressed against the annular eaves of the end portion of the heating pipe joint after the sleeve columnar protrusion.

6. The heat exchanger head welding positioning tooling of claim 1, wherein, The second positioning device comprises a second positioning shaft, a second positioning through hole is arranged on the positioning vertical plate, one end of the second positioning shaft extends into the second positioning through hole, and the second positioning shaft is fixedly connected with the positioning vertical plate through a second connecting flange arranged on the side of the positioning vertical plate away from the support vertical plate; The second connecting flange is fixedly connected with the positioning vertical plate, the second connecting flange is fixedly connected with one end of the second positioning shaft extending into the second positioning through hole through a screw, and the other end of the second positioning shaft is fixedly connected with the second positioning flange through a screw. The second positioning flange is provided with a second cylindrical protrusion matched with the heat exchanger head cold edge outlet joint on the side away from the second positioning shaft.

7. The heat exchanger head welding positioning tooling of claim 6, wherein, The first locking limiting device is a first annular clamping sleeve, the first annular clamping sleeve comprises two arc-shaped first clamping sleeve bodies arranged in a split mode, and the two ends of the two arc-shaped first clamping sleeve bodies are connected through bolts respectively. The inner ring surface of the first annular clamping sleeve is a first inner tapered surface, the first inner tapered surface is matched with the tapered outer peripheral surface of the heat exchanger head cold edge outlet joint, and at least two first jacks are uniformly distributed on the end of the first annular clamping sleeve close to the positioning vertical plate, the first jacks are threadedly connected with the first annular clamping sleeve and are horizontally arranged, and the end of the first jack extending into the first annular clamping sleeve abuts against the side of the second positioning flange close to the second connecting flange.

8. The heat exchanger head welding positioning tooling of claim 1, wherein, The third positioning device comprises a third positioning shaft, the third positioning shaft is horizontally arranged, one end of the third positioning shaft extends into a third positioning through hole arranged on the supporting vertical plate, and the third positioning shaft is fixedly connected with the supporting vertical plate through a third connecting flange arranged on the side of the supporting vertical plate away from the positioning vertical plate. The third connecting flange is fixedly connected with the supporting vertical plate, the third connecting flange is fixedly connected with one end of the third positioning shaft extending into the third positioning through hole through a screw, and the other end of the third positioning shaft is fixedly connected with the third positioning flange through a screw.

9. The heat exchanger head welding positioning tooling of claim 1, wherein, The third positioning flange is provided with a third cylindrical protrusion matched with the inner hole of the upper interface flange of the heat exchanger head on the side away from the third positioning shaft, a plurality of limiting blocks are uniformly distributed along the circumference of the third cylindrical protrusion on the third positioning flange, a groove for clamping the edge of the upper interface flange of the heat exchanger head is arranged on the side of the limiting block facing each other, and a pressing bolt extending into the groove and pressing the third positioning flange and the upper interface flange of the heat exchanger is further arranged on the limiting block. The fourth positioning device comprises a stepped fourth positioning shaft, the inclined support is provided with a fourth positioning through hole, the small end of the fourth positioning shaft is matched with the fourth positioning through hole, and a pull plate is arranged on the end of the fourth positioning through hole away from the fourth positioning shaft. The large end of the fourth positioning shaft is fixedly connected with the fourth positioning flange, the fourth positioning flange is provided with a fourth cylindrical protrusion matched with the upper cold edge inlet joint of the heat exchanger head on the side away from the fourth positioning shaft, and a fourth limiting ring table is arranged on the fourth cylindrical protrusion close to the fourth positioning shaft. The fourth positioning shaft end is further provided with a second locking limiting device for tightly connecting the upper cold edge inlet joint of the heat exchanger head with the fourth cylindrical protrusion.

10. The heat exchanger head welding positioning tooling of claim 9, wherein, The second locking and limiting device is a second annular clamping sleeve, which comprises two arc-shaped clamping sleeve bodies arranged in a split mode, and the two ends of the two arc-shaped clamping sleeve bodies are connected by bolts respectively; The inner ring surface of the second annular clamping sleeve is a second inner taper surface, which is matched with the tapered outer peripheral surface of the cold edge inlet joint on the heat exchanger head, and at least two second jacks are uniformly distributed on the end of the second annular clamping sleeve close to the inclined support, the second jacks are threadedly connected with the second annular clamping sleeve, and the end of the second jack extending into the second annular clamping sleeve is abutted against the side of the fourth positioning flange close to the inclined support; by rotating the second jack, the second inner taper surface on the second annular clamping sleeve is pressed against or away from the tapered outer peripheral surface of the cold edge inlet joint on the heat exchanger head; A U-shaped pad is arranged on the small end of the fourth positioning shaft and is sleeved on the fourth positioning shaft.

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