Magnetron end lead sheet welding structure

Abstract

The utility model discloses a magnetron end lead sheet welding structure which comprises a welding head displacement driving mechanism, a power connection assembly and a welding head assembly, the welding head assembly comprises a sliding table air cylinder, a vertical moving seat, an electrode needle lifting air cylinder, an electrode clamping seat and an electrode needle, the sliding table air cylinder is installed on one side of a radial moving seat and connected with the vertical moving seat in a driving mode, and the electrode needle lifting air cylinder is connected with the electrode clamping seat in a driving mode. The electrode clamping seat is connected to the vertical moving seat in an up-down sliding mode, the electrode needle lifting air cylinder is installed on the vertical moving seat, the electrode needle is relatively fixed to the electrode clamping seat, and the electrode needle lifting air cylinder is in driving connection with the electrode clamping seat. The welding device further comprises a pressing plate mechanism, the pressing plate mechanism comprises a pressing plate lifting air cylinder and a welding piece anti-disengaging pressing plate used for pressing the welding piece on the rotary disc, the pressing plate lifting air cylinder drives the welding piece anti-disengaging pressing plate to move up and down, and a needle avoiding through groove used for allowing an electrode needle to pass through is formed in the welding piece anti-disengaging pressing plate. The magnetron end lead sheet welding structure provided by the utility model can prevent the end lead sheet assembly from being brought up by the electrode needle, thereby being beneficial to stable production.

Description

Technical Field

[0001] The utility model relates to the field of magnetron cathode end lead piece welding equipment, in particular to a magnetron end lead piece welding structure. Background Art

[0002] At present, the magnetron is equipped with a magnetron cathode terminal lead. Figure 6 The structure of the cathode end lead of the magnetron is shown. The cathode end lead of the magnetron includes two symmetrically arranged lead pieces 971 and a welding piece 972. The two ends of the welding piece 972 are respectively placed on the upper end of the lead piece 971. The cathode end lead of the magnetron has two mounting holes 9721. The position of the cathode end lead of the magnetron on the magnetron can refer to the "A magnetron assembly welding process and welding materials thereof" in the Chinese invention patent application publication number CN101690987A. The existing automatic welding equipment is used to weld the lead piece 971 and the welding piece 972. The automatic welding equipment is provided with a turntable 99, which is driven to rotate by a cam divider. Four sets of evenly distributed end lead positioning molds 98 are provided on the turntable 99, that is, the turntable 99 is a four-station structure; Figure 5 As shown, at the first station, the lead 971 is inserted into the slot 981 of the end lead positioning mold 98; at the second station, as shown Figure 5 As shown, the welding piece 972 is correspondingly covered on the two lead pieces 971, and a positioning pin 9811 is formed on the end lead piece positioning mold 98. At this time, the positioning pin 9811 passes through the welding piece 972 and the lead piece 971 (that is, through the mounting hole 9721) at the same time. It should be noted that for easy viewing, Figure 5 The end lead positioning mold 98 in the figure is not fully covered with the magnetron cathode end lead; at the third station, the electrode needle is pressed on the welding piece 972, and the end lead positioning mold 98 is connected to electricity, and the welding piece 972 and the lead 971 are welded by resistance welding, and then the electrode needle moves upward to leave the welding piece 972; at the fourth station, the welded magnetron cathode end lead (i.e., the end lead assembly 97) is picked up from the end lead positioning mold 98. However, in actual application, because the electrode needle is slightly adhered to the welding part, the upward movement of the electrode needle often lifts the magnetron cathode end lead. If the magnetron cathode end lead falls to an incorrect position, or the magnetron cathode end lead adheres to the lower end of the electrode needle, it will cause an error in the fourth station, and also affect the subsequent circulation process of the turntable 99, that is, it is not conducive to the stable production, so it is necessary to improve the welding structure of the prior art. Summary of the invention

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a magnetron end lead welding structure, which is conducive to stable production.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The magnetron end lead welding structure disclosed by the utility model includes a welding head displacement driving mechanism, wherein the welding head displacement driving mechanism includes a tangential linear module, a tangential moving seat, a radial linear module and a radial moving seat, wherein the tangential linear module is driven to connect to the tangential moving seat, wherein the radial linear module is installed on the tangential moving seat, and wherein the radial linear module is driven to connect to the radial moving seat; wherein, it also includes a welding head assembly, wherein the welding head assembly includes a slide cylinder, a vertical moving seat, an electrode needle lifting cylinder, an electrode clamp seat and an electrode needle for conductively contacting the welding piece on the turntable, wherein the slide cylinder is installed on one side of the radial moving seat, wherein the slide cylinder is driven to connect to the vertical moving seat, and wherein the electrode clamp seat is slidably connected to the vertical moving seat up and down The electrode needle lifting cylinder is installed on the vertical movement seat, the electrode needle is relatively fixed on the electrode clamp seat, and the electrode needle lifting cylinder drives and connects the electrode clamp seat; it also includes a pressure plate mechanism, the pressure plate mechanism includes a pressure plate lifting cylinder and a welding piece anti-slipping pressure plate for pressing down on the welding piece on the turntable, the pressure plate lifting cylinder drives the welding piece anti-slipping pressure plate to move up and down, and a lightning rod groove for the electrode needle to pass through is formed on the welding piece anti-slipping pressure plate, and the lightning rod grooves are distributed in an array; it also includes an electrical connection component, the electrical connection component includes an electrode block radial displacement cylinder and an electrode block on the side of the end lead positioning mold for conductive contact on the turntable, and the electrode block radial displacement cylinder drives and connects the electrode block.

[0006] Preferably, the pressure plate mechanism includes a lifting seat and a standing seat, both ends of the lifting seat are respectively connected to one side of the standing seat through corresponding linear guide pairs, the welding piece anti-slip pressure plate is installed at the upper end of the lifting seat, the electrode block is located at the corresponding lower part of the welding piece anti-slip pressure plate, the lifting seat is formed with an avoidance opening, the electrode block radial displacement cylinder is arranged in the avoidance opening, and the avoidance opening is located between the two sets of the linear guide pairs.

[0007] Preferably, two electrode needle lifting cylinders are provided on the vertical displacement seat, and the electrode needle lifting cylinders are driven to connect to the corresponding electrode clamp seats.

[0008] Preferably, the number of the welding head assemblies is set to two sets, and the electrode needles belonging to the two sets of the welding head assemblies are arranged in the radial direction.

[0009] Preferably, the welding head displacement drive mechanism includes a bracket and a supporting slide rail, the tangential linear module is installed on the bracket, the tangential movable seat is located above the bracket, the tangential movable seat and the bracket are connected through a supporting slide rail, and the supporting slide rail is located between the tangential linear module and the welding head assembly.

[0010] Compared with the prior art, the utility model has the following beneficial effects: a pressure plate mechanism is provided, including a pressure plate lifting cylinder and a welding piece anti-slipping pressure plate for pressing down on the welding piece on the turntable; the pressure plate lifting cylinder drives the welding piece anti-slipping pressure plate to move up and down; a lightning rod groove for the electrode needle to pass through is formed on the welding piece anti-slipping pressure plate; the lightning rod grooves are distributed in an array, so as to prevent the electrode needle from lifting the end lead assembly, thereby facilitating stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the magnetron end lead welding structure and the turntable combination of the utility model.

[0012] Figure 2 It is a front view structural schematic diagram of the magnetron end lead welding structure and the turntable combination of the utility model.

[0013] Figure 3 It is a top view structural schematic diagram of the combination of the pressing plate mechanism and the end lead piece positioning mold on the turntable of the utility model.

[0014] Figure 4 for Figure 3 Schematic diagram of the local structure at point A.

[0015] Figure 5 A schematic diagram of the three-dimensional structure of the end lead plate positioning mold and the end lead plate assembly combination.

[0016] Figure 6 It is a schematic diagram of the three-dimensional structure of the end lead assembly.

[0017] Figure 7 It is a three-dimensional structural schematic diagram of the welding head displacement drive mechanism and the welding head assembly combination of the utility model.

[0018] Figure 8 for Figure 7 Schematic diagram of the local structure at location B.

[0019] Fig. 9 It is a bottom-up stereoscopic structural schematic diagram of the combination of the pressing plate mechanism and the power connection assembly of the utility model.

[0020] Fig.10 It is a three-dimensional structural schematic diagram of the welding piece anti-slip pressure plate of the utility model.

[0021] Explanation of reference numerals: welding head displacement drive mechanism 1; bracket 10; tangential linear module 11; tangential moving seat 111; radial linear module 12; radial moving seat 13; supporting slide rail 14; welding head assembly 2; slide cylinder 21; vertical moving seat 22; electrode needle lifting cylinder 23; electrode clamp seat 24; electrode needle 25; pressure plate mechanism 3; welding piece anti-slip pressure plate 31; lightning pin groove 3101; lifting seat 32; avoidance opening 321; pressure plate lifting cylinder 33; standing seat 34; linear guide pair 35; power connection assembly 4; electrode block 41; electrode block radial displacement cylinder 42; turntable 99; end lead piece positioning mold 98; slot 981; positioning needle 9811; end lead piece assembly 97; lead piece 971; welding piece 972; mounting hole 9721; welding point 970. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] The magnetron end lead welding structure of the utility model is as follows: Figure 1 and Figure 2 As shown, it includes a welding head displacement driving mechanism 1, such as Figure 7 As shown, the welding head displacement driving mechanism 1 includes a tangential linear module 11, a tangential moving seat 111, a radial linear module 12 and a radial moving seat 13. The linear module belongs to the product of the prior art. The tangential linear module 11 drives and connects the tangential moving seat 111. Specifically, the tangential moving seat 111 is installed on the slider of the tangential linear module 11 through screws. The servo motor of the tangential linear module 11 drives the slider of the tangential linear module 11 to move linearly through a ball screw pair. The radial linear module 12 is installed on the tangential moving seat 111. Specifically, the guide rail of the radial linear module 12 is relatively fixed on the tangential moving seat 111, so the tangential linear module 11 can drive the radial linear module 12 to move tangentially, and the radial linear module 12 drives the connected radial moving seat 13. Specifically, the radial moving seat 13 is installed on the slider of the radial linear module 12 by screws, and the radial moving seat 13 is a vertically arranged flat plate structure. During this period, the "tangential" mentioned above refers to the tangential direction along the turntable 99, and the "radial" mentioned above refers to movement close to or away from the center of the turntable 98 (approximately along the radial direction of the turntable 99), so the tangential moving seat 111 can move tangentially in a straight line, and the radial moving seat 13 can move radially in a straight line.

[0024] like Figure 1 and Figure 2 As shown, the magnetron end lead welding structure of the utility model also includes a welding head assembly 2, such as Figure 7 and Figure 8As shown, the welding head assembly 2 includes a slide cylinder 21, a vertical displacement seat 22, an electrode needle lifting cylinder 23, an electrode clamp seat 24 and an electrode needle 25 for conductively contacting the welding piece 972 on the turntable 99. The slide cylinder 21 is installed on one side of the radial displacement seat 13, that is, the outer shell of the slide cylinder 21 is installed on one side of the radial displacement seat 13 by screws. The slide cylinder 21 drives and connects to the vertical displacement seat 22, that is, the vertical displacement seat 22 is installed on the slide of the slide cylinder 21, so the slide cylinder 21 can drive the vertical displacement seat 22 to move up and down, the electrode clamp seat 24 is connected to the vertical displacement seat 22 by sliding up and down through the corresponding guide rail pair, the electrode needle lifting cylinder 23 is installed on the vertical displacement seat 22, and the electrode needle 25 is relatively fixed to the electrode clamp seat 24. Specifically, a notch is formed at one end of the electrode clamp seat 24, and the electrode needle 25 is placed in the corresponding notch. The two sides of the notch are connected by corresponding screws, so that the electrode needle 25 can be clamped and relatively fixed by tightening the above-mentioned screws. Figure 8 As shown, the electrode needle lifting cylinder 23 drives and connects to the electrode clamp seat 24, that is, the piston rod of the electrode needle lifting cylinder 23 is installed and connected to the electrode clamp seat 24. Figures 1 to 3 As shown, the magnetron end lead welding structure of the utility model also includes a pressing plate mechanism 3, which includes a pressing plate lifting cylinder 33 and a welding piece anti-slipping pressing plate 31 for pressing down on the welding piece 972 on the turntable 99, and the pressing plate lifting cylinder 33 drives the welding piece anti-slipping pressing plate 31 to move up and down, as shown in FIG. Fig.10 As shown, the soldering iron anti-dropping pressure plate 31 is formed with lightning rod grooves 3101 for the electrode needle 25 to pass through, and the lightning rod grooves 3101 are arranged in an array; Figure 1 , Figure 2 and Fig. 9 As shown, the magnetron end lead welding structure of the utility model also includes a power connection component 4, which includes an electrode block radial displacement cylinder 42 and an electrode block 41 on the side of the end lead positioning mold 98 for conductive contact on the turntable 99, and the electrode block radial displacement cylinder 42 drives the connection electrode block 41. In other words, the electrode block radial displacement cylinder 42 can drive the electrode block 41 to move in the radial direction of the turntable 99.

[0025] The following briefly describes the working principle of the magnetron end lead welding structure of the utility model: Figure 1 As shown, the turntable 99 drives the end lead positioning mold 98 to transfer to the workstation corresponding to the magnetron end lead welding structure of the utility model. At this time, the end lead assembly 97 is distributed in a rectangular array on the lead positioning mold 98, that is, the lead 971 has been inserted into the slot 981, and the welding piece 972 is pressed against the lead 971; the pressure plate lifting cylinder 33 drives the welding piece anti-slip pressure plate 31 to descend, so that the bottom of the welding piece anti-slip pressure plate 31 is pressed against the welding piece 972. At this time, as shown in FIG. Figure 4 As shown, each lightning rod slot 3101 corresponds to a welding piece 972. Figure 6As shown in FIG. 1 , because the solder joint 970 needs to avoid the mounting hole 9721, the lightning rod slot 3101 and the welding piece 972 are relatively inclined, but part of the edge of the lightning rod slot 3101 can still be well abutted against the welding piece 972. Then, the electrode block radial displacement cylinder 42 drives the electrode block 41 to move toward the center of the rotating disk 99, so that the electrode block 41 is abutted against the left side of the end lead positioning mold 98 (at Figure 2 ), then, the slide cylinder 21 of the welding head assembly 2 drives the vertical moving seat 22 to descend to the welding preparation position, and then the electrode needle lifting cylinder 23 drives the electrode needle 25 to descend through the lightning striker groove 3101 on the welding piece anti-dropping pressure plate 31, and then the lower end of the electrode needle 25 contacts the top of the welding piece 972, so that the electrode needle 25 and the electrode block 41 are energized, so that the current passes through the end lead positioning mold 98, the lead 971, the welding piece 972 and the electrode needle 25, so that the contact position of the electrode needle 25 and the welding piece 972 forms a welding point 970, thereby welding the lead 971 and the welding piece 972 together, and then the electrode needle 25 moves up and resets, and the welding head displacement drive mechanism 1 drives the electrode needle 25 to move to the position corresponding to the adjacent welding piece 972, and the electrode needle lifting cylinder 23 then drives the electrode needle 25 to move downward through the corresponding electrical wiring slot 3101, and welds the above-mentioned adjacent welding piece 972 with the corresponding lead piece 971. Since the combined work of the tangential linear module 11 and the radial linear module 12 can make the electrode needle 25 move two-dimensionally in the horizontal plane, the electrode needle 25 will eventually complete the welding of each end lead piece assembly 97 arrayed on the end lead piece positioning mold 98. After that, the slide cylinder 21 drives the vertical shift seat 22 to move upward and reset, and the welding head displacement drive mechanism 1 also drives the welding head assembly 2 to reset. The electrode block radial shift cylinder 42 drives the electrode block 41 to leave the end lead piece positioning mold 98, and the pressure plate lifting cylinder 33 drives the welding piece anti-slip pressure plate 31 to move upward and leave the end lead piece assembly 97, and then the turntable 99 resumes rotation to switch the workstation. As can be seen from the above, during the welding process, since the welding piece anti-slip pressure plate 31 keeps the welding piece 972 pressed down, the electrode needle 25 moves up each time the welding piece 972 is welded. The welding piece anti-slip pressure plate 31 blocks the welding piece 972 from moving up, thereby preventing the electrode needle 25 from lifting the end lead assembly 97 and preventing the end lead assembly 97 from separating from the end lead positioning mold 98, thereby avoiding affecting the process cycle, and thus facilitating stable production.

[0026] Furthermore, if Fig. 9As shown, the pressure plate mechanism 3 includes a lifting seat 32 and a stand 34. The two ends of the lifting seat 32 are connected to one side of the stand 34 through corresponding linear guide pairs 35, that is, the number of linear guide pairs 35 is two sets, and the two sets of linear guide pairs 35 are arranged along the tangent direction of the turntable 99. One end of the welding piece anti-stripping pressure plate 31 is installed on the upper end of the lifting seat 32, the cylinder body of the pressure plate lifting cylinder 33 is installed on the stand 34, the piston rod of the pressure plate lifting cylinder 33 is installed and connected to the lower end of the lifting seat 32, and the electrode block 41 is located at the welding piece anti-stripping pressure plate 31. Corresponding to the lower part, the lifting seat 32 is formed with an avoidance opening 321, and the electrode block diameter moving cylinder 42 is arranged in the avoidance opening 321. The electrode block diameter moving cylinder 42 can use a three-rod cylinder, and the avoidance opening 321 is located between the two sets of linear guide rail pairs 35. By setting the avoidance opening 321, the electrode block 41 can be arranged directly below the welding piece anti-slip pressure plate 31, so that the electrode block 41 and the welding piece anti-slip pressure plate 31 can reach the end lead positioning mold 98 respectively through simple and direct movements, and also avoid the lifting seat 32 from hitting the electrode block diameter moving cylinder 42 during the up and down movement.

[0027] Furthermore, if Figure 8 As shown, two electrode needle lifting cylinders 23 are provided on the vertical displacement seat 22, and the electrode needle lifting cylinders 23 drive and connect the corresponding electrode clamp seat 24, that is, the welding head assembly 2 is provided with two electrode needles 25, and each electrode needle 25 is independently driven by the corresponding electrode needle lifting cylinder 23, so that a set of welding head assembly 2 can weld two welding points 970 on a corresponding end lead assembly 97 at the same time, avoiding the need to use the welding head displacement drive mechanism 1 to move the electrode needle 25 to the corresponding position of the same end lead assembly 97, which is conducive to improving production efficiency and avoiding the complication of the action of the welding head displacement drive mechanism 1. Figure 4 As shown, since the line connecting the two solder joints 970 forms an angle with the array direction of the end lead assembly 97, as shown in FIG. Figure 8 As shown, the positions of the two electrode needles 25 of the welding head assembly 2 are also arranged accordingly.

[0028] Furthermore, if Figure 1 , Figure 7 and Figure 8 As shown, the number of welding head assemblies 2 is set to two sets, and the electrode needles 25 belonging to the two sets of welding head assemblies 2 are arranged in the radial direction (in Figure 1 In other words, one set of welding head assemblies 2 is relatively close to the center of the turntable 99, and the other set of welding head assemblies 2 is relatively far from the center of the turntable 99. Therefore, the two sets of welding head assemblies 2 can work independently, so that the two end lead assemblies 97 in the radial direction of the end lead positioning mold 98 can be welded at the same time. In other words, one set of welding head assemblies 2 corresponds to welding one end lead assembly 97. After welding, the welding head displacement drive mechanism 1 moves the welding head assembly 2 to the next welding position, which is conducive to improving production efficiency. Figure 8 As shown, in order to reduce the distance between the electrode needles 25 belonging to the two welding head assemblies 2, the two welding head assemblies 2 are arranged facing each other. For example, the distance between the electrode needles 25 belonging to the two welding head assemblies 2 is three times the radial spacing of the lightning rod slot 3101. Figure 3 As shown, the number of the lightning rod slots 3101 in the radial direction is six, so when the welding head assembly 2 relatively far away from the center of the turntable 99 welds the first end lead piece assembly 97 from left to right, another set of welding head assembly 2 welds the fourth end lead piece assembly 97 from left to right. When one welding is completed, the welding head displacement drive mechanism 1 moves the radial moving seat 13 radially according to the spacing of the lightning rod slots 3101, so as to weld the second and fifth end lead piece assemblies 97 from left to right, and the radial moving seat 13 only needs to move radially three times to weld the six end lead piece assemblies 97; for example, the number of the lightning rod slots 3101 in the tangential direction is four, then the welding head displacement drive mechanism 1 is to move the radial moving seat 13 tangentially four times.

[0029] Furthermore, if Figure 7 As shown, the welding head displacement drive mechanism 1 includes a bracket 10 and a supporting slide rail 14, the tangential linear module 11 is installed on the bracket 10, the tangential moving seat 111 is located above the bracket 10, the tangential moving seat 111 is connected to the bracket 10 through the supporting slide rail 14, the supporting slide rail 14 is located between the tangential linear module 11 and the welding head assembly 2, and the supporting slide rail 14 can use a linear guide rail, that is, the guide rail of the linear guide rail is installed on the bracket 10, and the slider of the linear guide rail is installed at the bottom of the tangential moving seat 111. Therefore, the tangential moving seat 111 is supported by a combination of the supporting slide rail 14 and the tangential linear module 11, so that the support span of the tangential moving seat 111 is increased, and the tangential moving seat 111 is avoided to be significantly bent due to the gravity of the welding head assembly 2, and the bending moment of the tangential linear module 11 is reduced, so that the more expensive tangential linear module 11 is avoided to be easily damaged.

Claims

1. A magnetron end lead welding structure, comprising a welding head displacement drive mechanism (1), the welding head displacement drive mechanism (1) comprising a tangential linear module (11), a tangential moving seat (111), a radial linear module (12) and a radial moving seat (13), the tangential linear module (11) is drivingly connected to the tangential moving seat (111), the radial linear module (12) is mounted on the tangential moving seat (111), and the radial linear module (12) is drivingly connected to the radial moving seat (13), characterized in that: It also includes a welding head assembly (2), the welding head assembly (2) including a slide cylinder (21), a vertical displacement seat (22), an electrode needle lifting cylinder (23), an electrode clamp seat (24), and an electrode needle (25) for conductively contacting a welding sheet (972) on a rotating disk (99), the slide cylinder (21) being mounted on one side of the radial displacement seat (13), the slide cylinder (21) being driven and connected to the vertical displacement seat (22), the electrode clamp seat (24) being slidably connected to the vertical displacement seat (22) up and down, the electrode needle lifting cylinder (23) being mounted on the vertical displacement seat (22), the electrode needle (25) being relatively fixed to the electrode clamp seat (24), and the electrode needle lifting cylinder (23) being driven and connected to the electrode clamp seat (24); and The invention comprises a pressing plate mechanism (3), the pressing plate mechanism (3) comprising a pressing plate lifting cylinder (33) and a welding piece anti-slipping pressing plate (31) for pressing down on a welding piece (972) on a rotating disk (99), the pressing plate lifting cylinder (33) driving the welding piece anti-slipping pressing plate (31) to move up and down, the welding piece anti-slipping pressing plate (31) is formed with a lightning rod through groove (3101) for the electrode needle (25) to pass through, the lightning rod through groove (3101) being arranged in an array; and also comprises an electrical connection component (4), the electrical connection component (4) comprising an electrode block radial displacement cylinder (42) and an electrode block (41) for conductively contacting a side surface of an end lead positioning mold (98) on the rotating disk (99), the electrode block radial displacement cylinder (42) drivingly connecting the electrode block (41).

2. The magnetron end lead welding structure according to claim 1, characterized in that: The pressure plate mechanism (3) comprises a lifting seat (32) and a standing seat (34); the two ends of the lifting seat (32) are respectively connected to one side of the standing seat (34) through corresponding linear guide rail pairs (35); the welding piece anti-slip pressure plate (31) is installed at the upper end of the lifting seat (32); the electrode block (41) is located at the corresponding lower part of the welding piece anti-slip pressure plate (31); the lifting seat (32) is formed with an avoidance opening (321); the electrode block radial displacement cylinder (42) is arranged in the avoidance opening (321); and the avoidance opening (321) is located between the two sets of linear guide rail pairs (35).

3. The magnetron end lead welding structure according to claim 1, characterized in that: Two electrode needle lifting cylinders (23) are provided on the vertical displacement seat (22), and the electrode needle lifting cylinders (23) are driven to connect to the corresponding electrode clamp seats (24).

4. The magnetron end lead welding structure according to claim 2, characterized in that: The number of the welding head assemblies (2) is set to two sets, and the electrode needles (25) belonging to the two sets of the welding head assemblies (2) are arranged in a radial direction.

5. The magnetron end lead welding structure according to claim 4, characterized in that: The welding head displacement drive mechanism (1) comprises a bracket (10) and a support slide rail (14); the tangential linear module (11) is mounted on the bracket (10); the tangential movable seat (111) is located above the bracket (10); the tangential movable seat (111) and the bracket (10) are connected via the support slide rail (14); and the support slide rail (14) is located between the tangential linear module (11) and the welding head assembly (2).

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