A welding tool for vacuum heat sink plate

Abstract

The present invention discloses a welding tool for a vacuum heat sink plate, comprising a bottom fixing, a workbench, a limiting structure, a lateral adjustment member, a longitudinal adjustment member, and also comprising: a partition plate, a positioning pile, an inner limiting seat; an upper docking structure, comprising an adsorption frame and a docking pin, when the adsorption frame moves the front panel into position, an electric component pushes out the docking pin and connects it with a connecting buckle, and when the welding manipulator moves to the front end of the docking pin, the corresponding electric component drives the corresponding docking pin to retract; an inner detection structure, comprising an outer push member and a side seam detection piece, when the side plate of the heat sink plate is in place, the outer push member pushes out the side seam detection piece, and makes the front panel of the downstream heat sink plate fit in the middle position of the side seam detection piece, the present invention can ensure the continuity of the entire welding process, and can also detect and determine the fitting effect of the side seam, to ensure that the entire side seam is in a continuous and high-strength state after welding.

Description

Technical Field

[0001] The invention relates to a welding tool, in particular to a welding tool for a vacuum heat sink plate. Background Art

[0002] The vacuum heat sink plate, also known as the condensation plate, is filled with gas for heat dissipation. It is mainly used in thermal vacuum test equipment, equipped with vacuum containers, vacuum exhaust systems, high and low temperature adjustment systems, control and data acquisition and processing systems. It can simulate the vacuum environment, external heat flow environment and cold black environment of space, and test aerospace engineering supplies and materials. In order to ensure its airtightness, it is necessary to ensure a tight fit during welding.

[0003] In order to ensure accuracy during the welding process of traditional vacuum heat sink plates, the plates of the heat sink plates are placed in a tooling, and the positions of the plates are regulated by the restrictions of the tooling to improve the sealing during welding. However, although this welding method can fix a single plate, the fit between the plates is not enough, and it is difficult to ensure the welding effect of the edge seams. Therefore, the prior art sets a connecting structure between different plates so that the different plates have a certain matching relationship before welding. However, this leads to the discontinuity of the entire welding process, and it is necessary to disconnect at the connecting and matching position, so that the entire weld is discontinuous, and single-point leakage is prone to occur during later use, which greatly affects the airtightness.

[0004] Therefore, this case aims to provide a welding tool for a vacuum heat sink plate, which can not only form a connection between the plates to be welded, but also ensure the continuity of the entire welding process. At the same time, it can also detect and determine the fitting effect of the edge seam, ensuring that the entire edge seam is in a continuous and high-strength state after welding, and the weld is not prone to cracks at the edge seam position, and the overall air tightness of the welded product is high. Summary of the invention

[0005] The present invention provides a welding tool for a vacuum heat sink plate, which can effectively solve the above problems.

[0006] The present invention is achieved in that:

[0007] A welding tool for a vacuum heat sink plate comprises a bottom fixing frame, a workbench is arranged above the bottom fixing frame, a limiting structure is arranged on the inner side of the workbench, the limiting structure comprises a plurality of transverse adjustment members arranged on the inner side of the workbench and a plurality of longitudinal adjustment members arranged on the inner bottom of the workbench, and the welding tool further comprises:

[0008] A detachable inner limit structure, wherein a partition plate is arranged at the middle position of the workbench, and the detachable inner limit structure comprises a positioning pile arranged on the partition plate, and an inner limit seat is movably locked on the positioning pile, and the inner limit seat is spaced apart from the lateral adjustment member and the bottom of the inner side of the workbench;

[0009] The upper docking structure, the top of the workbench is provided with a plurality of connecting buckles, the upper docking structure comprises an adsorption rack located above the workbench, the adsorption rack is used to adsorb the front panel of the heat sink plate, the side of the adsorption rack is provided with a plurality of docking pins, the docking pins are driven by an electric component, when the adsorption rack moves the front panel into place, the electric component pushes out the docking pins and connects with the connecting buckles, and when the welding manipulator moves to the front end of the docking pins, the corresponding electric component drives the corresponding docking pins to retract;

[0010] An inner detection structure, wherein two top corner openings of the inner limit seat are provided, and the inner detection structure comprises an outward push member arranged in the inner limit seat, and a side seam detection plate is arranged on the top of the outward push member. When the side plate of the heat sink plate is in place, the outward push member pushes out the side seam detection plate and makes the front plate of the descending heat sink plate fit in the middle position of the side seam detection plate.

[0011] As a further improvement, a slide rail is provided at the bottom of the longitudinal adjustment member, the direction of the slide rail is connected to the movement direction of the transverse adjustment member, and the two longitudinal adjustment members in the same column are arranged on the slide rail.

[0012] As a further improvement, the positioning pile is provided with a bolt hole, and the inner limit seat is provided with a countersunk hole, and the inner limit seat is locked on the positioning pile by bolts.

[0013] As a further improvement, the adsorption rack includes a sliding steel truss, a hydraulic cylinder is provided on the top of the steel truss, and a plurality of adsorption parts are installed under the steel truss. The adsorption parts are used to adsorb the unprocessed front panel to the inner limit seat and adsorb the welded workpiece to the next workstation.

[0014] As a further improvement, the adsorption component includes a lower adjusting cylinder, the bottom of the lower adjusting cylinder is connected to a large suction cup, a small suction cup is arranged on the inner side of the large suction cup, and the large suction cup and the small suction cup are both connected to the external negative pressure structure.

[0015] As a further improvement, the connecting buckle includes an ear seat fixedly connected to the top of the workbench, and an eccentric hole is arranged inside the ear seat.

[0016] As a further improvement, the electric component includes a rotating motor arranged on the inner side of the steel truss, an electric push rod is provided on the output end of the rotating motor, a docking pin is movably installed on the output end of the electric push rod, and the rotating motor drives the docking pin to rotate when it rotates.

[0017] As a further improvement, the docking pin includes a docking rod locked with the electric push rod, the docking rod passes through the eccentric hole, and an eccentric piece is connected to the side of the docking rod close to the eccentric hole. The eccentric piece is hooked on the outside of the eccentric hole when it is rotated upward.

[0018] As a further improvement, the push-out member comprises an arc-shaped mounting frame fixed on the inner side of the inner limit seat, a telescopic cylinder is arranged on the inner side of the arc-shaped mounting frame, and the side seam detection piece is locked to the output end of the telescopic cylinder.

[0019] As a further improvement, the edge seam detection piece includes a thin piece connected to the telescopic cylinder. When the thin piece is pushed out, it passes through the opening at the top corner of the inner limit seat. After the front panel moves down, it is pressed tightly against the middle position of the thin piece. Piezoelectric pieces are arranged on both sides of the middle position of the thin piece.

[0020] The beneficial effects of the present invention are:

[0021] In the existing tooling, a clamping fixing method is mostly used, which may not have a big impact when welding a planar structure, but it is easy to cause uneven side seams and disconnected welding when welding side seams. Therefore, the present invention uses a transverse adjustment member, a longitudinal adjustment member and an upper docking structure to fit and fix the front panel and the side panel of the heat sink plate to be welded on the outer side of the inner limit seat, so that the best welding position of the side seam can be better found during welding, the side seam is not easy to break after welding, and the air tightness after welding can be guaranteed.

[0022] The thickness of the side plates of heat sink plates of different specifications may be different. Therefore, in order to allow the longitudinal adjustment member to accurately adjust the longitudinal position of the side plate, the present invention sets the longitudinal adjustment member on the slide rail, so that the position of the longitudinal adjustment member can be adjusted and can always be located at the lower end of the side plate, and will not interfere with the lateral adjustment member when adjusting the position of the side plate.

[0023] Since the size of the heat sink plate welded each time may be different, if the style of the inner limit seat is directly set to a fixed style, the tooling will become a tooling of a single size. Therefore, the present invention uses the inner limit seat and the positioning pile as a detachable setting, so that the inner limit seat of the corresponding size can be replaced according to the size of the heat sink plate, thereby improving the adaptability of the present invention.

[0024] After the inner limit seat cooperates with the positioning pile, in order to prevent the locking and fixing structure between the inner limit seat and the positioning pile from interfering with the normal installation of the front panel, the present invention adopts a countersunk hole design so that the locking structure between the two can be retracted therein, thereby avoiding interference with the front panel.

[0025] The position coordination of the front panel and the side panel of the heat sink plate is the most important, which directly determines the strength of the side seam after welding. Therefore, in the process of fixing the front panel, the present invention first uses an adsorption rack to adsorb the entire front panel to the correct position, and then uses an electric component to push out the docking pin and connect it with the connecting buckle on the workbench, so that the position of the entire front panel in the longitudinal and transverse directions no longer changes, and then cooperates with the position of the transverse adjustment member and the longitudinal adjustment member to remain unchanged, so that the position of the side panel of the heat sink plate also does not change, thereby forming a stable coordination of the two plates, and when the welding robot gradually approaches the electric component, the electric component in the corresponding area will retract, and at the same time, the electric component of the welded part at the front end will be rotated and pushed out again, forming a local area of ​​yielding and disconnection, and a multi-area connection limit, thereby ensuring the accurate position during the welding process.

[0026] When adsorbing the front panel, since there are some recessed areas on the heat sink plate, if only a conventional suction cup structure is used for adsorption, it is easy for the recessed positions to fail to be adsorbed. Therefore, the adsorbent of the present invention includes a large suction cup and a small suction cup. The length of the small suction cup is slightly longer than that of the large suction cup, so that it can be adsorbed to the recessed position, so that it can be more stable when transporting the front panel, and it can reach the predetermined position more accurately.

[0027] When the electric component is matched with the connecting buckle, the connecting buckle and the electric component are not matched with the normal shaft hole. The docking pin of the electric component is eccentrically set, and an eccentric piece cooperates with the outer side of the eccentric hole to achieve extension and limitation, so that the entire upper docking structure is stabilized in one area.

[0028] Since the entire welding process is unmanned, it is impossible to manually observe whether the front panel and the side panels have been transferred into place. Therefore, the present invention sets up an inner detection structure, and after the side panels are in place, the side seam detection piece is pushed out by the outer pushing piece, so that the side seam detection piece fits on the top corner of the side panel. If the front panel descends normally, it will fit on the middle part of the side seam detection piece and will not touch the warning area of ​​the side seam detection piece, indicating that the front side is in place at this time. If the warning area of ​​the side seam detection piece is touched and the side seam detection piece itself is damaged, it means that the front panel has deviated from its original position at this time, and the equipment needs to be re-debugged.

[0029] The edge seam detection sheet is divided into a normal detection area and an abnormal detection area. When the front panel is in place normally, it will touch the middle position of the sheet. When the front panel is in an abnormal position, it will touch the piezoelectric sheet, and then the equipment needs to be stopped for debugging, so that the accuracy of the welding point can be detected in real time when no one is loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the present invention without the external frame.

[0033] Figure 3 The present invention Figure 2 Front view of .

[0034] Figure 4 It is a structural schematic diagram of the upper docking structure of the present invention (first viewing angle).

[0035] Figure 5 It is a structural schematic diagram of the upper docking structure of the present invention (second viewing angle).

[0036] Figure 6 It is a stereogram of the inner detection structure of the present invention.

[0037] Figure 7 The present invention Figure 6 Front view of .

[0038] In the figure:

[0039] Bottom fixing frame 10, workbench 20, partition board 21, connecting buckle 22, lateral adjustment piece 31, longitudinal adjustment piece 32, inner limit seat 42, upper docking structure 50, adsorption frame 51, steel truss 511, adsorption piece 512, lower adjustment cylinder 5121, large suction cup 5122, small suction cup 5123, hydraulic cylinder 513, docking pin 52, docking rod 521, eccentric piece 522, electric component 53, rotating motor 531, electric push rod 532, inner detection structure 60, outward push piece 61, arc mounting frame 611, telescopic cylinder 612, side seam detection piece 62, thin sheet 621, piezoelectric sheet 622. DETAILED DESCRIPTION

[0040] In order to make the embodiments of the present invention, all belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0041] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] Reference Figure 1 to Figure 7As shown, a welding tool for a vacuum heat sink plate comprises a bottom fixing frame 10, a workbench 20 is arranged above the bottom fixing frame 10, a limiting structure is arranged on the inner side of the workbench 20, the limiting structure comprises a plurality of lateral adjustment members 31 arranged on the lateral direction of the inner side of the workbench 20 and a plurality of longitudinal adjustment members 32 arranged on the inner bottom of the workbench 20, the welding tool also comprises: a detachable inner limiting structure, a partition plate 21 is arranged at the middle position of the workbench 20, the detachable inner limiting structure comprises a positioning pile arranged on the partition plate 21, an inner limiting seat 42 is movably locked on the positioning pile, the inner limiting seat 42 is spaced apart from the lateral adjustment member 31 and the bottom of the inner side of the workbench 20; an upper docking structure 50, a plurality of connecting buckles 22 are arranged on the top of the workbench 20, the upper docking structure 50 comprises a The adsorption frame 51 is used to adsorb the front panel of the heat sink plate. The side of the adsorption frame 51 is provided with a plurality of docking pins 52, and the docking pins 52 are driven by an electric component 53. When the adsorption frame 51 moves the front panel into place, the electric component 53 pushes out the docking pins 52 and connects with the connecting buckle 22, and when the welding manipulator moves to the front end of the docking pins 52, the corresponding electric component 53 drives the corresponding docking pins 52 to retract; the inner detection structure 60, the two top corner openings of the inner limit seat 42 are set, the inner detection structure 60 includes an outward push member 61 arranged in the inner limit seat 42, and a side seam detection piece 62 is arranged on the top of the outward push member 61. When the side panel of the heat sink plate is in place, the outward push member 61 pushes out the side seam detection piece 62, and makes the front panel of the downstream heat sink plate fit in the middle position of the side seam detection piece 62.

[0043] In this embodiment, the entire tooling is composed of two workstations, which can simultaneously perform welding of two heat sink plates. The entire welding process is to weld the front panel and two side panels of the heat sink plate together, and then transfer it to the next workstation to weld the back panel. During transportation, the entire adsorption rack 51 is moved by an external frame, wherein the principle of the external frame is the same as that of the existing frame, so no further elaboration will be given here.

[0044] The position of the workbench 20 away from the partition plate 21 is the opening direction, but it can be sealed by a sealing plate when it is not used for a long time.

[0045] In the existing tooling, a clamping fixing method is mostly used, which may not have a big impact when welding a planar structure, but it is easy to cause uneven side seams and disconnected welding when welding side seams. Therefore, the present invention uses a transverse adjustment member 31, a longitudinal adjustment member 32 and an upper docking structure 50 to fit and fix the front panel and the side panel of the heat sink plate to be welded on the outer side of the inner limit seat 42, so that the best welding position of the side seam can be better found during welding, and the side seam is not easy to break after welding, and the air tightness after welding can be guaranteed.

[0046] The thickness of the side plates of heat sink plates of different specifications may be different. Therefore, in order to allow the longitudinal adjustment member 32 to accurately adjust the longitudinal position of the side plate, a slide rail is provided at the bottom of the longitudinal adjustment member 32 of this embodiment. The direction of the slide rail is connected to the movement direction of the transverse adjustment member 31. The two longitudinal adjustment members 32 in the same row are arranged on the slide rail. By setting the longitudinal adjustment member 32 on the slide rail, the position of the longitudinal adjustment member 32 can be adjusted, and it can always be located at the lower end of the side plate, and will not interfere with the transverse adjustment member 31 when adjusting the position of the side plate.

[0047] Since the size of the heat sink plate welded each time may be different, if the style of the inner limit seat 42 is directly set to a fixed style, the tooling will become a tooling of a single size. Therefore, the present invention uses the inner limit seat 42 and the positioning pile as a detachable setting, so that the inner limit seat 42 of the corresponding size can be replaced according to the size of the heat sink plate, thereby improving the adaptability of the present invention.

[0048] After the inner limit seat 42 is matched with the positioning pile, in order to avoid the locking and fixing structure between the inner limit seat 42 and the positioning pile from interfering with the normal installation of the front panel, a bolt hole is provided on the positioning pile of this embodiment, and a countersunk hole is provided on the inner limit seat 42. The inner limit seat 42 is locked to the positioning pile by bolts, and the countersunk hole design allows the locking structure between the two to be retracted therein, thereby avoiding interference with the front panel.

[0049] The position coordination of the front panel and the side panel of the heat sink plate is the most important, which directly determines the strength of the side seam after welding. Therefore, the adsorption frame 51 of this embodiment includes a sliding steel truss 511, and a hydraulic cylinder 513 is arranged on the top of the steel truss 511. A plurality of adsorption members 512 are installed under the steel truss 511. The adsorption members 512 are used to adsorb the unprocessed front panel to the inner limit seat 42, and adsorb the welded workpiece to the next workstation. In the process of fixing the front panel, the adsorption frame 51 is first used to adsorb the entire front panel to the accurate position, and the electric component 53 is used to push the docking pin 52 out and connect it with the connecting buckle 22 on the workbench 20, so that the position of the entire front panel in the longitudinal and transverse directions no longer changes, and then cooperate with the upper The positions of the transverse adjustment member 31 and the longitudinal adjustment member 32 do not change, so that the position of the side plate of the heat sink plate does not change, thereby forming a stable fit between the two plates, and when the welding robot gradually approaches the electric component 53, the electric component 53 in the corresponding area will retract, and at the same time, the electric component 53 of the welded part at the front end will be rotated and pushed out again, forming a local area of ​​yielding disconnection and multi-area connection limit, thereby ensuring the accurate position during the welding process. The principle of automatic retraction and automatic rotation of the electric component 53 is based on the time relay provided on the driving end of the electric component 53. Since the welding surface is fixed and the welding time is fixed, a certain movement cycle is set on the time relay to allow the electric component 53 to be continuously alternately activated to form a virtuous and coherent cycle.

[0050] The power connection and operation principle of the hydraulic cylinder 513 and the steel truss 511 are the same as those of the existing transfer structure, so no further elaboration is given here.

[0051] When the front panel is adsorbed, since there are some recessed areas on the heat sink plate, if only a conventional suction cup structure is used for adsorption, it is easy for the recessed positions to fail to be adsorbed. Therefore, the adsorbent 512 of this embodiment includes a lower adjusting cylinder 5121, and a large suction cup 5122 is connected to the bottom of the lower adjusting cylinder 5121. A small suction cup 5123 is arranged on the inner side of the large suction cup 5122. The large suction cup 5122 and the small suction cup 5123 are both connected to the external negative pressure structure. The adsorbent 512 includes a large suction cup 5122 and a small suction cup 5123. The length of the small suction cup 5123 is slightly longer than that of the large suction cup 5122, so that it can be adsorbed to the recessed position, so that it can be more stable when transporting the front panel, and it can reach the predetermined position more accurately.

[0052] When the electric component 53 cooperates with the connecting buckle 22, the connecting buckle 22 and the electric component 53 are not normally matched with the shaft hole. The connecting buckle 22 includes an ear seat fixedly connected to the top of the workbench 20, and an eccentric hole is arranged inside the ear seat. The electric component 53 includes a rotating motor 531 arranged on the inner side of the steel truss 511, and an electric push rod 532 is arranged on the output end of the rotating motor 531. A docking pin 52 is movably installed on the output end of the electric push rod 532. When the rotating motor 531 rotates, it drives the docking pin 52 to rotate. The docking pin 52 of the electric component 53 is eccentrically arranged, and cooperates with the outer side of the eccentric hole through an eccentric piece 522, so as to realize extension and limitation, so that the entire upper docking structure 50 is stabilized in one area.

[0053] The docking pin 52 is not just an axle tube. The docking pin 52 includes a docking rod 521 locked with the electric push rod 532. The docking rod 521 passes through the eccentric hole. An eccentric piece 522 is connected to the side of the docking rod 521 close to the eccentric hole. The eccentric piece 522 is hooked on the outside of the eccentric hole when it is rotated to the upper side. When the eccentric piece 522 is located at the lower end, the docking rod 521 can pass through the eccentric hole normally. When the eccentric piece 522 is rotated to the upper end by the rotating motor 531, the entire docking rod 521 will be stuck on the outside of the ear seat and can no longer retract, thereby limiting the steel truss 511 in the left and right directions.

[0054] Since the entire welding process is unmanned, it is impossible to manually observe whether the front panel and the side panels have been transferred into place. Therefore, the present invention sets up an inner detection structure 60. After the side panels are in place, the side seam detection piece 62 is pushed out by the outer push piece 61, so that the side seam detection piece 62 fits on the top corner of the side panel. If the front panel descends normally, it will fit on the middle part of the side seam detection piece 62 and will not touch the warning area of ​​the side seam detection piece 62, indicating that the front side is in place at this time. If the warning area of ​​the side seam detection piece 62 is touched and the side seam detection piece 62 itself is damaged, it means that the front panel has deviated from its original position at this time, and the equipment needs to be re-debugged.

[0055] The entire push-out member 61 is arranged at an angle, and the push-out member 61 includes an arc-shaped mounting frame 611 fixed on the inner side of the inner limit seat 42, and a telescopic cylinder 612 is arranged on the inner side of the arc-shaped mounting frame 611. The side seam detection piece 62 is locked to the output end of the telescopic cylinder 612, and the side seam detection piece 62 is movably locked to the shelf at the output end of the telescopic cylinder 612, so it can be replaced in time even after deformation.

[0056] The side seam detection piece 62 is divided into a normal detection area and an abnormal detection area. Specifically, the side seam detection piece 62 includes a thin piece 621 connected to the telescopic cylinder 612. When the thin piece 621 is pushed out, it passes through the opening at the top corner of the inner limit seat 42. After the front panel moves down, it is pressed against the middle position of the thin piece 621. Piezoelectric pieces 622 are arranged on both sides of the middle position of the thin piece 621. When the front panel is in place normally, it will touch the middle position of the thin piece 621. When the position of the front panel is abnormal, it will touch the piezoelectric piece 622, and then the equipment needs to be stopped for debugging, so that the accuracy of the welding point can be detected in real time when no one is loading.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding tool for a vacuum heat sink plate, comprising a bottom fixing frame (10), a workbench (20) being arranged above the bottom fixing frame (10), a limiting structure being arranged on the inner side of the workbench (20), the limiting structure comprising a plurality of transverse adjustment members (31) arranged on the inner side of the workbench (20) in a lateral direction and a plurality of longitudinal adjustment members (32) arranged on the inner bottom of the workbench (20), characterized in that: The welding tool also includes: A detachable inner limit structure, wherein a partition plate (21) is arranged in the middle of the workbench (20), the detachable inner limit structure comprises a positioning pile arranged on the partition plate (21), an inner limit seat (42) is movably locked on the positioning pile, and the inner limit seat (42) is spaced from the lateral adjustment member (31) and the bottom of the inner side of the workbench (20); An upper docking structure (50), wherein a plurality of connecting buckles (22) are arranged on the top of the workbench (20), and the upper docking structure (50) comprises an adsorption rack (51) located above the workbench (20), and the adsorption rack (51) is used to adsorb the front panel of the heat sink plate, and a plurality of docking pins (52) are arranged on the side of the adsorption rack (51), and the docking pins (52) are driven by an electric component (53), and when the adsorption rack (51) moves the front panel into position, the electric component (53) pushes the docking pins (52) out and connects with the connecting buckles (22), and when the welding robot moves to the front end of the docking pins (52), the corresponding electric component (53) drives the corresponding docking pins (52) to retract; An inner detection structure (60), wherein two top corner openings of the inner limit seat (42) are provided, and the inner detection structure (60) comprises an outward push member (61) provided in the inner limit seat (42), and a side seam detection piece (62) is provided on the top of the outward push member (61), and when the side plate of the heat sink plate is in place, the outward push member (61) pushes the side seam detection piece (62) out and makes the front plate of the downward heat sink plate fit in the middle position of the side seam detection piece (62).

2. A welding tool for a vacuum heat sink plate according to claim 1, characterized in that: A slide rail is provided at the bottom of the longitudinal adjustment member (32), the direction of the slide rail being connected to the movement direction of the transverse adjustment member (31), and two longitudinal adjustment members (32) in the same row are arranged on the slide rail.

3. The welding tool for a vacuum heat sink plate according to claim 1, characterized in that: The positioning pile is provided with a bolt hole, and the inner limit seat (42) is provided with a countersunk hole, and the inner limit seat (42) is locked on the positioning pile by means of bolts.

4. The welding tool for a vacuum heat sink plate according to claim 1, characterized in that: The adsorption rack (51) comprises a slidably arranged steel truss (511), a hydraulic cylinder (513) being arranged on the top of the steel truss (511), and a plurality of adsorption members (512) being installed below the steel truss (511), the adsorption members (512) being used to adsorb an unprocessed front panel onto an inner limit seat (42) and to adsorb a welded workpiece onto a next workstation.

5. The welding tool for a vacuum heat sink plate according to claim 4, characterized in that: The adsorption member (512) comprises a lower regulating cylinder (5121), the bottom of which is connected to a large suction cup (5122), a small suction cup (5123) is arranged on the inner side of the large suction cup (5122), and both the large suction cup (5122) and the small suction cup (5123) are connected to an external negative pressure structure.

6. The welding tool for a vacuum heat sink plate according to claim 5, characterized in that: The connecting buckle (22) comprises an ear seat fixedly connected to the top of the workbench (20), and an eccentric hole is arranged inside the ear seat.

7. A welding tool for a vacuum heat sink plate according to claim 6, characterized in that: The electric component (53) comprises a rotating motor (531) arranged inside the steel truss (511); an electric push rod (532) is arranged on the output end of the rotating motor (531); a docking pin (52) is movably mounted on the output end of the electric push rod (532); when the rotating motor (531) rotates, the docking pin (52) is driven to rotate.

8. The welding tool for a vacuum heat sink plate according to claim 7, characterized in that: The docking pin (52) comprises a docking rod (521) locked with the electric push rod (532), the docking rod (521) passes through the eccentric hole, and an eccentric piece (522) is connected to a side of the docking rod (521) close to the eccentric hole, and the eccentric piece (522) is hooked on the outside of the eccentric hole when rotating upward.

9. The welding tool for a vacuum heat sink plate according to claim 1, characterized in that: The push-out member (61) comprises an arc-shaped mounting frame (611) fixed on the inner side of the inner limit seat (42), a telescopic cylinder (612) is arranged on the inner side of the arc-shaped mounting frame (611), and the side seam detection piece (62) is locked to the output end of the telescopic cylinder (612).

10. A welding tool for a vacuum heat sink plate according to claim 9, characterized in that: The side seam detection sheet (62) comprises a thin sheet (621) connected to the telescopic cylinder (612); when the thin sheet (621) is pushed out, it passes through the opening at the top corner of the inner limit seat (42); the front panel moves downward and is pressed against the middle position of the thin sheet (621); and piezoelectric sheets (622) are provided on both sides of the middle position of the thin sheet (621).

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