CN110116261B

CN110116261B - Welding tooling equipment

Info

Publication number: CN110116261B
Application number: CN201910404600.7A
Authority: CN
Inventors: 刘悦吟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2023-10-31
Anticipated expiration: 2039-05-15
Also published as: CN110116261A

Abstract

The invention provides welding tooling equipment which comprises an upper electrode assembly and a lower electrode assembly, wherein the lower electrode assembly comprises more than two lower electrodes, the upper electrode assembly is arranged above the lower electrode assembly, and the upper electrode assembly comprises more than two upper electrodes. The upper electrode head and the lower electrode head of the welding tool equipment adopt a split structure, so that avoidance can be formed on a workpiece before welding operation, and the operation is convenient; the upper electrode head and the lower electrode head have certain relative pressure during welding, so that the welding quality is good, and the practicability is good.

Description

Welding tooling equipment

Technical Field

The invention relates to the field of welding, in particular to welding tooling equipment.

Background

Fig. 1 shows a three-dimensional schematic of a compressor and reservoir connection. The compressor 1 is provided with a conduit 5 and a bracket 3, and the liquid reservoir 2 is provided with an air suction pipe 4; the body of the liquid storage device 2 is supported on the bracket 3, and the air suction pipe 4 extends into the guide pipe 5; the suction pipe flange 6 and the conduit flange 7 are respectively provided on the suction pipe 4 and the conduit 5, and in actual processing, it is necessary to press the suction pipe flange 6 and the conduit flange 7 and weld the suction pipe flange 6 and the conduit flange 7.

In the concrete implementation, the close fit between the air suction pipe flange 6 and the conduit flange 7 is required to be kept during welding so as to ensure the welding effect, and a pressure device and a welding device of the existing welding tool equipment are arranged in a split mode and are easy to interfere in space; the traditional annular welding electrode cannot be sleeved on the air suction pipe 4 and the guide pipe 5 respectively beyond the air suction pipe flange 6 and the guide pipe flange 7, and welding tool equipment is easy to interfere with the compressor and the liquid reservoir in position.

Because the welding of the air suction pipe 4 and the guide pipe 5 is an indispensable procedure in the connection of the liquid storage device and the compressor, and the welding effect of the air suction pipe 4 and the guide pipe 5 has a larger influence effect on the service life of the refrigerating system, special welding tool equipment is needed for welding the air suction pipe 4 and the guide pipe 5 in order to ensure the welding effect, reduce the welding operation difficulty and improve the welding efficiency.

Disclosure of Invention

In order to overcome the defects of the existing welding tool equipment, the invention provides the welding tool equipment which has the characteristics of good welding effect, low welding operation difficulty, high welding efficiency and the like, and has good practicability.

The invention provides welding tooling equipment, which comprises an upper electrode assembly and a lower electrode assembly, wherein a reference axis arranged along the vertical direction is arranged in a space;

the lower electrode assembly includes two or more lower electrodes that move toward or away from the reference axis; when the two or more lower electrodes move towards the reference axis to reach the stroke end, the two or more lower electrodes enclose a lower electrode head, and the lower electrode head is collinear with the reference axis;

the upper electrode assembly is arranged above the lower electrode assembly, the upper electrode assembly comprises more than two upper electrodes, the more than two upper electrodes move towards or away from the reference axis, and the more than two upper electrodes move along the direction of the reference axis; when the two or more upper electrodes move towards the reference axis to the stroke end, the two or more upper electrodes enclose an upper electrode head, and the upper electrode head is collinear with the reference axis.

In an alternative embodiment, the number of the lower electrodes is two, and the two lower electrodes are a first lower electrode and a second lower electrode respectively;

a semi-annular first split lower electrode head is arranged on one side of the first lower electrode, facing the reference axis, and a semi-annular second split lower electrode head is arranged on one side of the second lower electrode, facing the reference axis;

when the first lower electrode and the second lower electrode move towards the reference axis to reach the stroke end, the first split lower electrode head and the second split lower electrode head are combined to form an annular lower electrode head.

In an alternative embodiment, the welding fixture apparatus further includes a lower electrode guide assembly, the lower electrode guide assembly including a first lower connection block and a second lower connection block;

the first split lower electrode head is arranged on the first lower connecting block, and the second split lower electrode head is arranged on the second lower connecting block;

the first lower connecting block and the second lower connecting block move along the same horizontal straight line.

In an alternative embodiment, the first lower connecting block and the second lower connecting block are mutually guided to move along the same straight line;

or the first lower connecting block and the second lower connecting block move along the same straight line based on a lower electrode straight line guide piece.

In an alternative embodiment, the welding fixture apparatus further includes a compressor stand for supporting the compressor, and the compressor stand includes two support plates parallel to each other and fixedly disposed along a vertical direction.

In an alternative embodiment, the first lower connection piece and/or the second lower connection piece are guided on the basis of the support plate;

and/or the first lower connection block is guided based on the support plate and the second lower connection block, and the second lower connection block is guided based on the support plate and the first lower connection block.

In an alternative embodiment, the number of the upper electrodes is two, and the two upper electrodes are a first upper electrode and a second upper electrode respectively;

a semi-annular first split upper electrode head is arranged on one side of the first upper electrode, which faces the reference axis, and a semi-annular second split upper electrode head is arranged on one side of the second upper electrode, which faces the reference axis;

when the first upper electrode and the second upper electrode move towards the reference axis to reach the stroke end, the first split upper electrode head and the second split upper electrode head are combined to form an annular upper electrode head.

In an alternative embodiment, the welding fixture device further comprises an upper electrode guiding assembly, wherein the upper electrode guiding assembly comprises a first upper connecting block and a second upper connecting block;

the first upper electrode head is arranged on the first upper electrode connecting block, and the second upper electrode head is arranged on the second upper electrode connecting block;

the first upper connecting block and the second upper connecting block relatively move along the same horizontal straight line.

In an alternative embodiment, the upper electrode guiding assembly further includes an upper electrode linear guide, and the first upper connection block and the second upper connection block are respectively slidably fitted on the upper electrode linear guide;

the first upper connecting block and the second upper connecting block respectively move relatively along the same horizontal straight line based on the upper electrode straight line guide piece.

In an alternative embodiment, the lower electrode is connected with a power supply copper strip at one side far away from the reference axis;

and/or the upper electrode is connected with a power supply copper belt at one side far away from the reference axis.

The embodiment of the invention provides welding tool equipment, wherein an upper electrode head and a lower electrode head adopt a split structure, so that welding workpieces can be well avoided, the operation difficulty is reduced, the welding effect is improved, and the welding efficiency is increased; the lower electrode is guided by the lower electrode guiding device, the upper electrode is guided by the upper electrode guiding device, the movement direction is accurate, and the fixture positioning is accurate; the upper electrode assembly can press the air suction pipe flange during operation, so that the welding forming quality of a welding surface is maintained, and the welding effect is good.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a three-dimensional schematic of a compressor and reservoir connection;

fig. 2 shows a three-dimensional structure schematic diagram of a welding fixture device according to a first embodiment of the present invention;

fig. 3 shows a schematic three-dimensional structure of a welding fixture device according to a second embodiment of the present invention;

fig. 4 shows a schematic front view of a welding fixture according to an embodiment of the present invention;

FIG. 5 is a schematic view showing a three-dimensional structure of a lower electrode assembly and a lower electrode guide assembly according to an embodiment of the present invention;

FIG. 6 shows a schematic top view of a lower electrode guide assembly according to an embodiment of the present invention;

FIG. 7 shows a schematic three-dimensional structure of a compressor block according to an embodiment of the present invention;

fig. 8 shows a three-dimensional structure schematic of an upper electrode group according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the invention provides two welding tool equipment structures, specifically, fig. 2 shows a three-dimensional structure schematic diagram of welding tool equipment of a first embodiment of the invention, and fig. 3 shows a three-dimensional structure schematic diagram of welding tool equipment of a second embodiment of the invention.

In the second embodiment, based on the structure of the first embodiment, the electrode balancer 512 is disposed on the upper electrode guiding assembly 50, and the electrode balancer 512 is used for balancing the welding pressure of the first upper electrode and the second upper electrode, so as to provide a better welding effect.

The distinguishing features of the welding fixture device provided in the first embodiment and the welding fixture device provided in the second embodiment are whether an electrode balancer is provided, and the structures of the other parts are common technical features, and the common technical features are described below; it should be noted that the partial view is built and shown based on the welding fixture apparatus of the second embodiment.

Fig. 3 shows a three-dimensional structure schematic diagram of a welding fixture device according to a second embodiment of the present invention, and fig. 4 shows a front view structure schematic diagram of the welding fixture device according to the embodiment of the present invention. The embodiment of the invention provides welding tooling equipment, which comprises a compressor base 10, a lower electrode assembly 20, an upper electrode assembly 30, a lower electrode guide assembly 40 and an upper electrode guide assembly 50.

Wherein, the compressor stand 10 is used for supporting the compressor 1 for placing the compressor 1. With reference to the structure shown in fig. 1 of the drawings, the suction pipe 4 of the reservoir 2 extends into the duct 5 of the compressor 1; an intake pipe flange 6 and a duct flange 7 which are mutually matched are respectively arranged on the intake pipe 4 and the duct 5. In the operation state of the welding fixture equipment, the lower electrode assembly 20 of the embodiment of the invention surrounds the periphery of the guide pipe 5 and is close to or attached to the lower end surface of the guide pipe flange 7; the upper electrode assembly 30 of the embodiment of the invention is enclosed on the periphery of the air suction pipe 4 and is pressed on the upper end surface of the air suction pipe flange 7; the upper electrode assembly 30 and the lower electrode assembly 20 are then energized to cooperatively weld the suction pipe flange 6 and the duct flange 7. In figures 3 and 4 of the drawings, the conduit, suction duct, conduit flange and suction duct flange are not visible in the drawings due to the shielding between the components, as will be understood in connection with figure 1 of the drawings.

Fig. 5 shows a three-dimensional schematic diagram of the lower electrode assembly and the lower electrode guide assembly according to an embodiment of the present invention, in which reference axes 9 are marked for convenience of understanding and explanation of the movement directions of the respective components, and the reference axes are virtual straight lines disposed in a vertical direction in space. The common structure of the conduit and the air suction pipe is a circular pipe structure, the conduit and the air suction pipe are required to be kept coaxial during welding so as to ensure the uniformity of welding gaps, and the reference axis 9, the conduit axis and the air suction pipe axis are collinear.

The lower electrode assembly comprises more than two lower electrodes moving along the horizontal direction, and the more than two lower electrodes move towards or away from a reference axis; in an embodiment of the invention, the lower electrode moves towards or away from the reference axis based on the guiding of the lower electrode guiding assembly; when the lower electrode moves to a stroke end position in the direction of the reference axis, a side wall of one side of the lower electrode, which faces the reference axis, encloses a lower electrode head, and the axis of the lower electrode head is collinear with the reference axis; the inner diameter of the lower electrode head is larger than or equal to the outer diameter of the conduit, and the inner diameter of the lower electrode head is smaller than the outer diameter of the conduit flange.

In the specific implementation, when more than two lower electrodes are combined into a lower electrode head, the lower electrode head is in a surrounding shape and is used for surrounding a conduit and propping against a conduit flange; optionally, more than two lower electrodes are combined into a circular lower electrode head; alternatively, more than two lower electrodes are arranged circumferentially along the reference axis in space without touching each other when combined into a lower electrode head.

Alternatively, in the embodiment of the present invention, the lower electrode assembly 20 includes two lower electrodes, which are the first lower electrode 201 and the second lower electrode 202, respectively; a semi-annular first split lower electrode head is arranged on one side of the first lower electrode 201 facing the reference axis, and a semi-annular second split lower electrode head is arranged on one side of the second lower electrode 202 facing the reference axis;

the first lower electrode 201 and the second lower electrode 202 combine to form a circular lower electrode tip when moving toward the reference axis to the end of travel (the position shown in fig. 5).

Since the first lower electrode 201 and the second lower electrode 202 are small in size, installation is inconvenient, and the first lower electrode 201 and the second lower electrode 202 of the embodiment of the present invention are fixed to the first lower electrode connecting plate 211 and the second lower electrode connecting plate 212, respectively. Optionally, in order to energize the first lower electrode 201 and the second lower electrode 202, in the embodiment of the present invention, a first lower electrode copper strip 221 is connected to a side of the first lower electrode connection plate 211 away from the reference axis, and a second lower electrode copper strip 222 is connected to a side of the second lower electrode connection plate 212 away from the reference axis.

Accordingly, the lower electrode guide assembly 40 according to the embodiment of the present invention includes a first lower connection block 401 and a second lower connection block 402, the first lower electrode 201 being fixed on the top surface of the first lower connection block 401 based on the first lower electrode connection plate 211, and the second lower electrode being fixed on the top surface of the second lower connection block 402 based on the second lower electrode connection plate 212, corresponding to the lower electrode assembly structure of the embodiment of the present invention.

In combination with the front view of the welding fixture device structure shown in fig. 4 of the drawings, when the two lower electrodes respectively move to the stroke end position based on the first lower connection block 401 and the second lower connection block 402 towards the reference axis direction, the upper parts of the opposite side walls of the first lower connection block 401 and the second lower connection block 402 are tightly attached, and a compressor avoiding groove is formed in the middle. The compressor avoiding groove is used for avoiding the compressor and preventing the lower electrode guide assembly from interfering with the compressor.

Correspondingly, when the first lower connection block 401 and the second lower connection block 402 move towards the reference axis to form a terminal point, a bracket avoiding groove is formed on a contact surface of one side of the first support plate, where the bracket avoiding groove is used for avoiding a bracket on the compressor.

Fig. 6 shows a schematic top view of a lower electrode guide assembly according to an embodiment of the present invention. Alternatively, the first lower connection block 401 and the second lower connection block 402 are guided to move along the same straight line. Alternatively, the following structure may be employed to realize the mutual guiding function for the first lower electrode and the second lower electrode: the bottom surface of the first lower connecting block 401 and the bottom surface of the second lower connecting block 402 are on the same horizontal plane, a first guide strip 411 extends from the first lower connecting block 401 towards the second lower connecting block 402, and a second guide strip 412 extends from the second lower connecting block 402 towards the first lower connecting block 401; the side walls of the first guide strip and the second guide strip are parallel to each other; more than one first guide strip 411 is clamped between a plurality of second guide strips 412 or more than one second guide strip 412 is clamped between a plurality of first guide strips 411.

The number and arrangement positions of the first guide bar 411 and the second guide bar 412 need to be designed to cooperate with each other to realize the function of mutual guidance. Basically, the number of the first guide strips is more than one, the number of the second guide strips is more than one, and at least one first guide strip in the more than one first guide strips is clamped between two second guide strips;

or the number of the first guide strips is more than one, and at least one second guide strip in the more than one second guide strips is clamped between the two first guide strips.

Specifically, the number of the first guide bars 411 is more than one, each first guide bar 411 has two opposite first guide sidewalls (up and down as shown in fig. 6 of the drawings), and when the first guide sidewalls of the two opposite first guide bars 411 are limited, the movement direction of the first guide bars 411 in the horizontal plane can be determined. Similarly, when the number of the first guide bars 411 is plural, the movement direction of the first guide bars 411 in the horizontal plane is unique as long as the side walls in two different directions among the plural first guide bars 411 are limited.

Similarly, the number of the second guide bars 412 is more than one, each second guide bar 412 has two opposite second guide sidewalls (up and down as shown in fig. 6 of the drawings), and when the second guide sidewalls of the second guide bars 412 in two opposite directions are limited, the movement direction of the second guide bars 412 in the horizontal plane can be determined. Similarly, when the number of the second guide bars 412 is plural, the movement direction of the second guide bars 412 in the horizontal plane is unique as long as the side walls in two different directions among the plural second guide bars 412 are limited.

It should be noted that, in combination with the embodiments of the first guide strip 411 and the second guide strip 412, the functions of the first guide strip 411 and the second guide strip 412 are the same, that is, the first guide strip 411 or the second guide strip 412 can realize the function of guiding the structure of the device and simultaneously realize the function of guiding the structure of the device; therefore, in the implementation, the number and the arrangement positions of the first guide strip 411 and the second guide strip 412 need to be designed in a mutually matched manner to realize the function of mutual guiding.

Further, alternatively, the first lower connection block 401 and the second lower connection block 402 may be guided based on a lower electrode straight guide; this arrangement is similar to that of the upper electrode assembly, and will be described and understood later in connection with the description of the upper electrode assembly.

Fig. 7 shows a three-dimensional structural schematic of a compressor block according to an embodiment of the present invention. The compressor block 10 of the embodiment of the present invention includes a first support plate 101, a second support plate 102, and a connection plate 103. The first supporting plate 101 and the second supporting plate 102 are relatively arranged in parallel, the connecting plate 103 is arranged along the horizontal direction, and the first supporting plate 101 and the second supporting plate 102 are respectively connected and fixed with the connecting plate 103.

According to the structure of the lower electrode guiding assembly, the first lower connecting block and the second lower connecting block in the lower electrode guiding assembly can be mutually guided to realize movement in opposite directions or opposite directions, and optionally, the first lower connecting block and the second lower connecting block can be guided based on the first supporting plate and the second supporting plate. Specifically, the upper parts of the first supporting plate 101 and the second supporting plate 102 are used for fixing the compressor body, alternatively, in the embodiment of the invention, the structures of the first supporting plate 101 and the second supporting plate 102 are similar, the upper ends of the first supporting plate 101 and the second supporting plate 102 are respectively bifurcated into a plurality of supporting parts, the plurality of supporting parts on the first supporting plate 101 and the second supporting plate 102 are combined to form a limiting clamping groove structure respectively, the plurality of supporting parts are used for limiting the compressor, and the compressor is placed on the supporting parts of the first supporting plate 101 and the second supporting plate 102 under the action of gravity.

With reference to the top view structure of the lower electrode guide assembly shown in fig. 6 of the drawings, optionally, the bottom surfaces of the first supporting plate 101 and the second supporting plate 102 are leveled with the bottom surfaces of the first lower connecting block and the second lower connecting block, so that the whole welding fixture equipment can be arranged on the same plane; the first supporting plate 101 is disposed outside the compressor avoiding groove and contacts with the side wall of the first guide strip 411 or the second guide strip 412; the second supporting plate 102 is disposed in the compressor avoiding groove and contacts with the side wall of the first guide strip 411 and/or the second guide strip 412; when the first guide bar 411 and the second guide bar 412 move, the side wall of the first guide bar 411 and/or the second guide bar 412 is clung to the first support plate 101 and/or the second support plate 102, and the relative movement direction between the lower electrode guide assembly and the compressor base is determined, namely, the relative movement direction between the lower electrode guide assembly and the compressor is determined.

In addition, in order to prevent the first guide bar 411 and the second guide bar 412 from tilting to cause guide failure, the connecting plate 103 in the embodiment of the present invention is disposed above the first guide bar and the second guide bar, and the bottom surface of the connecting plate 103 contacts the top surfaces of the first guide bar and the second guide bar, so as to limit the movement of the first guide bar and the second guide bar in the vertical direction, and prevent the first guide bar 411 and the second guide bar 412 from tilting to cause guide failure.

In summary, through the mutual cooperation of the lower electrode assembly, the lower electrode guiding assembly and the compressor seat, after the compressor is placed on the compressor seat, the lower electrode assembly is guided by the lower electrode guiding assembly, the lower electrode of the lower electrode assembly is combined to form a lower electrode head, and the lower electrode head is enclosed outside the conduit and is positioned below the conduit flange 6.

In the specific implementation, when more than two upper electrodes are combined into an upper electrode head, the upper electrode head is in a surrounding shape and is used for surrounding the air suction pipe and propping against the air suction pipe flange; optionally, more than two upper electrodes are combined into an annular upper electrode head; alternatively, more than two upper electrodes are arranged circumferentially along the reference axis in space without touching each other when combined into an upper electrode head.

Fig. 8 shows a three-dimensional structure schematic of an upper electrode group according to an embodiment of the present invention. In the embodiment of the present invention, the upper electrode group includes two upper electrodes, which are a first upper electrode 311 and a second upper electrode 312, respectively; a semi-annular first split upper electrode head is arranged on one side of the first upper electrode 311 facing the reference axis, and a semi-annular second split upper electrode head is arranged on one side of the second upper electrode 312 facing the reference axis;

the first upper electrode 311 and the second upper electrode 312 are combined to form an annular upper electrode tip when moving toward the reference axis to the stroke end. Referring to fig. 1 of the drawings, the inner diameter of the upper electrode head is larger than or equal to the outer diameter of the air suction pipe 4, and is smaller than the outer diameter of the air suction pipe flange 6.

Because of the small size of the upper electrode tip, in the embodiment of the present invention, the first upper electrode tip 311 and the second upper electrode tip 312 are fixed to the first upper electrode connecting plate 321 and the second upper electrode connecting plate 422, respectively.

Optionally, in order to energize the first upper electrode 311 and the second upper electrode 312, in the embodiment of the present invention, a first upper electrode copper strip 331 is connected to a side of the first upper electrode connecting plate 321 away from the reference axis, and a second upper electrode copper strip 332 is connected to a side of the second upper electrode connecting plate 322 away from the reference axis.

The upper electrode guide assembly comprises an upper electrode linear guide 510, a first upper connecting block 501 and a second upper connecting block 502, wherein the first upper electrode 311 is fixed on the bottom surface of the first upper connecting block 501 based on a first upper electrode connecting plate 321, and the second upper electrode 312 is arranged on the bottom surface of the second upper connecting block 502 based on a second upper electrode connecting plate 322.

Alternatively, the upper electrode linear guide 510 may be a linear guide device such as a linear rail, a T-slot guide, a trapezoid-slot guide, or the like. In the embodiment of the present invention, a chute is provided on the bottom surface of the upper electrode linear guide 510 along the horizontal direction, the opening size of the chute is smaller than the bottom surface size of the chute, and the upper part of the first upper connecting block 501 and the upper part of the second upper connecting block 502 are respectively matched in the chute; the sliding groove ensures that the first upper connecting block 501 and the second upper connecting block can only move along the sliding groove direction and cannot fall off from the sliding groove through the arrangement mode that the opening size is smaller than the size of the bottom surface of the sliding groove.

In particular, the first upper electrode 311 and the second upper electrode 312 are driven by the first upper connection block 501 and the second upper connection block 502 to relatively move toward the reference axis 9 or to move away from the reference axis 9.

In addition, in order to prevent the large current from being transmitted to the external device in consideration of the fact that the device is operated with the large current, damage is caused to the external device and the worker, the upper electrode guide assembly further includes an insulation layer 511; the insulating layer 511 is disposed on the top surface of the upper electrode linear guide 510.

The upper electrode guiding assembly further comprises an electrode balancer 512, wherein the electrode balancer 512 is disposed on the top surface of the insulating layer 511, and the electrode balancer 512 is fixedly connected with the upper electrode linear guiding member 510 to drive the upper electrode linear guiding member 510 to move, so as to balance the welding pressure of the first upper electrode and the second upper electrode.

In a specific implementation, the insulating layer 511 may be an elastic insulating layer or a hard insulating layer, such as an insulating plate, a plastic mat, or the like. Because the elastic insulating layer has certain deformability, the elastic insulating layer can simultaneously have the functions of the insulating layer and the electrode balancer, and therefore, the electrode balancer does not need to be additionally arranged under the condition that the insulating layer 511 adopts the elastic insulating layer; alternatively, the insulating layer 511 may be a hard insulating layer, and the electrode balancer is a number of nitrogen springs disposed above the insulating layer 511.

In summary, the operation process of the welding tooling equipment of the embodiment of the invention is as follows:

the first lower connecting block and the second lower connecting block move away from the reference axis, and a compressor opening for placing a compressor is formed between the first lower connecting block and the second lower connecting block;

the compressor is placed on the compressor seat from the compressor opening, the liquid storage device is placed on the bracket, and the air suction pipe extends into the guide pipe;

the first lower connecting block and the second lower connecting block move towards the reference axis until the upper parts of the opposite side surfaces of the first lower connecting block and the second lower connecting block are contacted, and a lower electrode head formed by matching a first lower electrode and a second lower electrode surrounds the outer wall of the catheter;

the first upper connecting block and the second upper connecting block move away from the reference axis, and an air suction pipe opening avoiding the air suction pipe is formed between the first upper connecting block and the second upper connecting block;

the upper electrode guide assembly and the upper electrode assembly are driven to move downwards integrally along the reference axis based on the electrode balancer until the heights of the first upper electrode and the second upper electrode reach above the upper end surface of the air suction pipe flange;

the first upper connecting block and the second upper connecting block move towards the reference axis, and an upper electrode head formed by matching a first upper electrode and a second upper electrode surrounds the outer wall of the air suction pipe;

the upper electrode guide assembly and the upper electrode assembly are driven to move downwards integrally along a reference axis based on the electrode balancer, and the first upper electrode and the second upper electrode are contacted with the air suction pipe flange to press the air suction pipe flange on the conduit flange; the electrode balancer is also connected with pressure equipment for providing pressure to enable the upper electrode head to be pressed on the conduit flange, and can ensure that the pressure on the first upper electrode and the second upper electrode is uniformly distributed, so that the welding quality is improved;

the first lower electrode copper strip, the second lower electrode copper strip, the first upper electrode copper strip and the second lower electrode copper strip are electrified, and the air suction pipe and the guide pipe are welded into a whole.

The embodiment of the invention provides welding tool equipment, which realizes mutual guidance between a first lower connecting block and a second lower connecting block through the matching design of the first lower conducting bar and the second lower conducting bar, and has the advantages of simple structure and good guiding effect; the compressor seat can determine the relative movement direction between the compressor and the lower electrode guide assembly through the matching arrangement of the first support plate and the second support plate and the lower electrode guide assembly, and has the advantage of accurate movement position; the compressor seat part structure is arranged in the lower electrode guide assembly, so that the structure is compact, and the space utilization rate is high; the arrangement of the electrode balancer can ensure that the welding pressure is uniformly distributed and improve the welding quality; the first lower electrode and the second lower electrode are mutually matched, and the first upper electrode and the second upper electrode are mutually matched, so that interference between the lower electrode and the structures of the compressor and the liquid reservoir can be reduced, and the welding device has good operation convenience in actual operation and is beneficial to quickly realizing welding operation between a catheter and an air suction pipe; the arrangement of the insulating pad can effectively prevent welding current from being transmitted to external equipment, and has good safety protection effect.

The foregoing has described in detail a welding tool device provided by the embodiments of the present invention, and specific examples have been applied herein to illustrate the principles and embodiments of the present invention, where the foregoing examples are provided to assist in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims

1. The welding tool equipment is characterized by comprising an upper electrode assembly and a lower electrode assembly, wherein a reference axis arranged along the vertical direction is arranged in a space;

the upper electrode assembly is arranged above the lower electrode assembly, the upper electrode assembly comprises more than two upper electrodes, the more than two upper electrodes move towards or away from the reference axis, and the more than two upper electrodes move along the direction of the reference axis; when the two or more upper electrodes move towards the reference axis to the stroke end, the two or more upper electrodes enclose an upper electrode head, and the upper electrode head is collinear with the reference axis; the number of the lower electrodes is two, and the two lower electrodes are a first lower electrode and a second lower electrode respectively;

when the first lower electrode and the second lower electrode move towards the reference axis to reach the stroke end, the first split lower electrode head and the second split lower electrode head are combined to form a circular lower electrode head; the welding tooling equipment further comprises a lower electrode guide assembly, wherein the lower electrode guide assembly comprises a first lower connecting block and a second lower connecting block;

the first split lower electrode head is arranged on the first lower connecting block, and the second split lower electrode head is arranged on the second lower connecting block; the first lower connecting block and the second lower connecting block move along the same horizontal straight line;

the number of the upper electrodes is two, and the two upper electrodes are a first upper electrode and a second upper electrode respectively;

when the first upper electrode and the second upper electrode move towards the reference axis to reach the stroke end, the first split upper electrode head and the second split upper electrode head are combined to form an annular upper electrode head;

the welding tooling equipment further comprises an upper electrode guide assembly, wherein the upper electrode guide assembly comprises a first upper connecting block and a second upper connecting block;

the first upper connecting block and the second upper connecting block relatively move along the same horizontal straight line;

the welding tooling equipment also comprises a compressor seat for supporting the compressor, wherein the compressor seat comprises two support plates which are parallel to each other and fixedly arranged along the vertical direction;

the suction pipe of the liquid storage device extends into the guide pipe of the compressor; an air suction pipe flange and a conduit flange which are matched with each other are respectively arranged on the air suction pipe and the conduit;

the lower electrode assembly surrounds the periphery of the conduit and is close to or attached to the lower end face of the conduit flange; the upper electrode assembly surrounds the periphery of the air suction pipe and is tightly pressed on the upper end surface of the air suction pipe flange; then the upper electrode assembly and the lower electrode assembly are electrified and are matched with each other to weld the air suction pipe flange and the conduit flange;

the reference axis, the conduit axis, and the suction pipe axis are collinear;

the upper parts of the opposite side walls of the first lower connecting block and the second lower connecting block are clung, and a compressor avoiding groove is formed in the middle; the first upper connecting block and the second upper connecting block move away from the reference axis, and an air suction pipe opening avoiding the air suction pipe is formed between the first upper connecting block and the second upper connecting block.

2. The welding tooling device of claim 1, wherein the first lower connection block and the second lower connection block are guided to move along the same straight line with each other;

3. Welding tooling device according to claim 1, wherein the first lower connection block and/or the second lower connection block are guided on the basis of the support plate;

4. The welding tooling apparatus of claim 1 wherein the upper electrode guide assembly further comprises an upper electrode linear guide, the first upper connection block and the second upper connection block being respectively slip fit over the upper electrode linear guide;

5. The welding tooling device of claim 1, wherein the lower electrode is connected with a power copper strap on a side remote from the reference axis;