Continuous spot welding equipment applied to manufacturing of air conditioner mesh enclosure

Abstract

The invention discloses continuous spot welding equipment applied to air conditioner mesh enclosure manufacturing, and relates to the technical field of spot welding of air conditioner mesh enclosures. The automatic spot welding device comprises an operation table, a lifting spot welding air cylinder is installed at the top of the operation table, a spot welding head is fixedly installed at the telescopic end of the lifting spot welding air cylinder, a moving opening is formed in the middle of the operation table, a linear sliding rail module is installed in the moving opening, and a net cover supporting mechanism is installed on the linear sliding rail module; the net cover supporting mechanism comprises a mounting plate fixedly mounted on the linear sliding rail module, a rotating table is rotationally mounted at the top of the mounting plate, a center plate positioning shaft rod is fixedly mounted in the center of the top of the rotating table, and a plurality of ring rib supporting mechanisms are annularly mounted on the outer side of the center plate positioning shaft rod. Through the arrangement of the ring rib supporting assembly, whether a welding spot is firm or not can be checked while supporting and positioning are conducted, equipment is integrated, the structure is compact, and the spot welding process is simple.

Description

Technical Field

[0001] This invention relates to the field of spot welding technology for air conditioner mesh covers, and more specifically to a continuous spot welding device used in the manufacture of air conditioner mesh covers. Background Technology

[0002] With the rapid development of the air conditioning industry, air conditioner grilles, as an important external component of air conditioners, play multiple functions such as protection, decoration, and heat dissipation. To improve the manufacturing efficiency and quality of air conditioner grilles, spot welding technology has been widely applied in the production process. Traditional spot welding equipment has already been used in the manufacturing of air conditioner grilles.

[0003] A utility model patent (publication number: CN216421383U) discloses an integrated spot welding fixture for air conditioner mesh covers, including a main equipment housing. A welding table is mounted on the side wall of the main equipment housing, and several mesh cover holders are mounted above the welding table. A welding seat is mounted on the side wall of the main equipment housing above the welding table, and a spot welder is mounted below the welding seat. Anti-scalding components are mounted on the welding seat and around the spot welder. This patent is only applicable to spot welding of pre-formed air conditioner mesh covers and cannot be used for direct spot welding of components, as shown in the attached figure. Figure 8 The commonly seen disc-shaped air conditioner mesh cover mainly consists of a central plate, multiple ring ribs and multiple main ribs that expand outwards sequentially. During spot welding, these ring ribs and main ribs need to be positioned and fixed for stable spot welding. The equipment in the aforementioned patent cannot perform spot welding. Furthermore, some existing air conditioner mesh cover spot welders use specific molds to position the mesh cover components, but each mold is only suitable for one specification of air conditioner mesh cover, limiting its application. Moreover, existing spot welding machines only have spot welding functionality; after spot welding, specialized quality inspection equipment is needed to check the weld positions, ensuring the weld is strong and meets quality requirements, making the process complex. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous spot welding device for manufacturing air conditioner mesh covers in order to solve the above problems.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A continuous spot welding equipment for manufacturing air conditioner mesh covers includes an operating table. A lifting spot welding cylinder is installed on the top of the operating table. A spot welding head is fixedly installed on the telescopic end of the lifting spot welding cylinder. A moving opening is opened in the middle of the operating table. A linear slide rail module is installed inside the moving opening. A mesh cover support mechanism is installed on the linear slide rail module. The mesh cover support mechanism includes a mounting plate fixedly installed on the linear slide rail module. A rotating platform is rotatably mounted on the top of the mounting plate. A center plate positioning shaft is fixedly installed at the center of the top of the rotating platform. Multiple sets of ring rib support mechanisms are installed in a ring around the outer side of the center plate positioning shaft. Each set of ring rib support mechanisms consists of several ring rib support components. The spacing between adjacent ring rib support components is adjustable. Multiple sets of main rib support components are arranged in a ring around the top of the rotating platform. The main rib support components and ring rib support mechanisms are arranged alternately.

[0006] Furthermore, the outer side of the positioning shaft of the center plate is threaded with an upper locking nut and a lower top platform, which can clamp the center plate of the air conditioner mesh cover.

[0007] Furthermore, the top of the lower platform is tapered.

[0008] Furthermore, the ring rib support assembly includes a telescopic cylinder, which is inclined at 45°. An outer frame is sleeved on the telescopic end of the telescopic cylinder. An inner magnetic rod is slidably connected inside the outer frame. A top spring is provided between the inner magnetic rod and the telescopic end of the telescopic cylinder. The top of the inner magnetic rod is inclined. A sleeve rod is slidably connected to the top of the outer frame. A triangular magnetic block is provided at the bottom of the sleeve rod. The inclined surface of the bottom of the triangular magnetic block is in close contact with the top of the inner magnetic rod and is attracted to the top of the inner magnetic rod. A snap-fit ​​protrusion is provided on the inner wall of the sleeve rod. A lifting screw rod is inserted into the inside of the sleeve rod. The snap-fit ​​protrusion is inserted into the spiral groove on the outer surface of the lifting screw rod. A support head is provided at the top of the lifting screw rod. The support head can support the ring rib. A slider is rotatably mounted on the bottom of the support head one. Multiple sets of slide rails are circumferentially mounted on the top of the rotary table. The slide rails are correspondingly arranged with the ring rib support mechanism. The sliders in the same ring rib support mechanism are all slidably connected in the slide rail. Multiple sets of side plates are circumferentially arranged on the outer side of the center plate positioning shaft. The side plates are correspondingly arranged with the ring rib support mechanism. The telescopic cylinder closest to the center plate positioning shaft is fixedly mounted on the side plate. The telescopic cylinders in the remaining ring rib support assemblies are sequentially fixedly mounted on the outer frame of the adjacent ring rib support assembly, and the adjacent ring rib support assembly is close to the center plate positioning shaft.

[0009] Furthermore, a connecting plate is fixedly installed on the outer side of the outer frame by bolts, and adjacent telescopic cylinders are fixedly installed on the connecting plate.

[0010] Furthermore, the interior of the rotary table has multiple sets of straight sliding openings. The main rib support assembly includes a bottom rod slidably connected in the straight sliding opening. An adjusting nut is rotatably installed on the top of the bottom rod. A support screw is threadedly connected to the inside of the adjusting nut. A rectangular sliding rod is provided at the bottom of the support screw and is slidably connected in the bottom rod. A second support head is provided at the top of the support screw, and a clamping rod is threadedly connected to the inside of the second support head.

[0011] Furthermore, a lower adjusting plate is rotatably mounted on the bottom of the rotary table. Multiple sets of arc-shaped sliding grooves are formed in the inner ring of the lower adjusting plate. A transmission cylinder is provided at the bottom of the bottom rod and is slidably connected in the arc-shaped sliding groove. The inner wall of the lower adjusting plate is provided with inner gear teeth. A drive motor is fixedly mounted on the top of the rotary table. The output end of the drive motor passes through the rotary table. An inner drive wheel is fixedly mounted at the bottom of the output end of the drive motor and meshes with the inner gear teeth.

[0012] Furthermore, the support head is arranged in a V-shape.

[0013] Furthermore, the second support head is arranged in the form of an inverted trapezoid.

[0014] Furthermore, an eccentric gap is provided between the center line of the lead screw of the linear guide module and the center line of the mounting plate, and a rotary motor is fixedly installed at the bottom of the mounting plate, with the output end of the rotary motor fixedly connected to the rotary table.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses a center plate positioning shaft to position and support the center plate of the mesh cover, uses a ring rib support mechanism to position multiple ring ribs, and uses a main rib support assembly to position and support the main ribs. It can directly position and weld the mesh cover components, and can quickly complete the spot welding of the disc mesh cover in one go.

[0016] 2. The present invention uses modular design of ring rib support components, which can adjust the number according to the specifications of the mesh cover. At the same time, the spacing between adjacent ring rib support components is adjustable, thus making the equipment applicable to air conditioner mesh covers of different specifications and having a wide range of applications.

[0017] 3. By setting up the ring rib support component, the present invention can check whether the weld is firm while supporting and positioning. The equipment is integrated, the structure is compact, and the spot welding process is simple. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the working state of the mesh cover support mechanism of the present invention; Figure 3 This is a schematic diagram of the mesh support mechanism of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the mesh support mechanism of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the central plate positioning shaft and ring rib support assembly structure of the present invention; Figure 6 This is a schematic diagram of the ring rib support component structure of the present invention; Figure 7 This is a schematic diagram of the main rib support component structure of the present invention; Figure 8 This is a schematic diagram of an existing air conditioner mesh cover.

[0019] Attached reference numerals: 1. Center plate; 2. Ring rib; 3. Main rib; 4. Operating platform; 41. Lifting spot welding cylinder; 42. Spot welding head; 5. Linear slide rail module; 6. Mesh cover support mechanism; 61. Mounting plate; 62. Rotary motor; 63. Rotary table; 631. Linear slide; 64. Center plate positioning shaft; 641. Upper locking nut; 642. Lower top platform; 643. Side plate; 65. Ring rib support assembly; 651. Outer frame; 652. Telescopic cylinder; 653. Inner... Magnetic rod; 654. Top spring; 655. Sleeve rod; 656. Triangular magnetic block; 657. Lifting screw rod; 658. Support head one; 659. Slider; 650. Connecting plate; 66. Slide rail; 67. Main rib support assembly; 671. Bottom rod; 672. Transmission cylinder; 673. Adjusting nut; 674. Support screw; 675. Rectangular slide rod; 676. Support head two; 677. Clamping rod; 68. Lower adjusting plate; 681. Arc-shaped slide groove; 69. Inner drive wheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Example 1, as Figures 1-8 As shown, a continuous spot welding equipment for manufacturing air conditioner mesh covers includes an operating table 4, a lifting spot welding cylinder 41 installed on the top of the operating table 4, a spot welding head 42 fixedly installed on the telescopic end of the lifting spot welding cylinder 41, a moving opening in the middle of the operating table 4, a linear slide rail module 5 installed inside the moving opening, and a mesh cover support mechanism 6 installed on the linear slide rail module 5. The mesh support mechanism 6 includes a mounting plate 61 fixedly installed on the linear slide rail module 5. A rotating platform 63 is rotatably mounted on the top of the mounting plate 61. A center plate positioning shaft 64 is fixedly installed at the center of the top of the rotating platform 63. Multiple sets of ring rib support mechanisms are installed in a ring around the outer side of the center plate positioning shaft 64. Each set of ring rib support mechanisms consists of several ring rib support components 65. The spacing between adjacent ring rib support components 65 is adjustable. Multiple sets of main rib support components 67 are arranged in a ring around the top of the rotating platform 63. The main rib support components 67 and the ring rib support mechanisms are arranged alternately.

[0022] An eccentric gap is set between the center line of the lead screw of the linear guide module 5 and the center line of the mounting plate 61. A rotary motor 62 is fixedly installed at the bottom of the mounting plate 61. The output end of the rotary motor 62 is fixedly connected to the rotary table 63. Through this design, the rotary motor 62 can be inserted into the operating table 4 through the moving port, making the overall structure more compact.

[0023] Adjustment: By adjusting the spacing between adjacent ring rib support components 65, the equipment can be adapted to air conditioner mesh covers with different ring rib 2 spacings. Furthermore, the ring rib support components 65 are modularly designed, and the number of ring rib support components 65 can be adjusted according to requirements, making the equipment adaptable to air conditioner mesh covers with different numbers of ring ribs 2, thus having a wide range of applications.

[0024] Clamping: First, fit the center plate 1 onto the center plate positioning shaft 64. Then, insert one end of the main rib 3 into the reserved hole in the center plate and clamp the other end onto the main rib support assembly 67. Finally, place the ring rib 2 on the ring rib support assembly 65 and press it onto the main rib 3.

[0025] Spot welding: The lifting spot welding cylinder 41 drives the spot welding head 42 to descend. The spot welding head 42 performs electric welding on the contact position between the main rib 3 and the ring rib 2. Only 3-6 ring ribs 2 can be spot welded at one time. Therefore, after spot welding is completed, the linear slide rail module 5 drives the mesh cover support mechanism 6 to move towards the spot welding head 42, so that the other ring ribs 2 move directly below the spot welding head 42. The spot welding head 42 descends again for spot welding. When the number of spot welding times of a group of main ribs 3 reaches the standard, the rotary table 63 rotates, so that another group of main ribs 3 rotates to directly below the spot welding head 42. At the same time, the linear slide rail module 5 drives the mesh cover support mechanism 6 to reset. Spot welding is performed again according to the previous spot welding process. When the rotary table 63 rotates 360°, the spot welding of an air conditioner mesh cover is completed. Then, new spot welded parts can be clamped here.

[0026] In embodiment two, based on the above embodiment, it further includes an upper locking nut 641 and a lower top platform 642 threadedly connected to the outer side of the center plate positioning shaft 64, which can clamp the air conditioner mesh cover center plate 1.

[0027] Furthermore, the top of the lower top platform 642 is tapered, enabling the lower top platform 642 to support center plates 1 of different radii.

[0028] The height of the center plate 1 can be adjusted by adjusting the upper locking nut 641 and the lower top platform 642, thereby improving the welding quality.

[0029] In embodiment three, based on the above embodiments, the ring rib support assembly 65 further includes a telescopic cylinder 652, which is inclined at 45°. An outer frame 651 is sleeved on the telescopic end of the telescopic cylinder 652. An inner magnetic rod 653 is slidably connected inside the outer frame 651. A top spring 654 is provided between the inner magnetic rod 653 and the telescopic end of the telescopic cylinder 652. The top of the inner magnetic rod 653 is inclined. A sleeve rod 654 is slidably connected to the top of the outer frame 651. 55. A triangular magnetic block 656 is provided at the bottom of the sleeve rod 655. The bottom slope of the triangular magnetic block 656 is in close contact with the top of the inner magnetic rod 653 and is attracted to the top of the inner magnetic rod 653. A snap-fit ​​protrusion is provided on the inner wall of the sleeve rod 655. A lifting screw rod 657 is inserted into the inside of the sleeve rod 655. The snap-fit ​​protrusion is inserted into the spiral groove on the outer surface of the lifting screw rod 657. A support head 658 is provided at the top of the lifting screw rod 657. The support head 658 can support the ring rib 2. A slider 659 is rotatably mounted on the bottom of the support head 658. Multiple sets of slide rails 66 are circumferentially mounted on the top of the rotary table 63. The slide rails 66 are correspondingly arranged with the ring rib support mechanism. The sliders 659 in the same ring rib support mechanism are all slidably connected in the slide rails 66. Multiple sets of side plates 643 are circumferentially arranged on the outer side of the center plate positioning shaft 64. The side plates 643 are correspondingly arranged with the ring rib support mechanism. The telescopic cylinder 652 closest to the center plate positioning shaft 64 is fixedly mounted on the side plate 643. The telescopic cylinders 652 in the remaining ring rib support assemblies 65 are sequentially fixedly mounted on the outer frame 651 of the adjacent ring rib support assembly 65, and the adjacent ring rib support assembly 65 is close to the center plate positioning shaft 64.

[0030] Furthermore, a connecting plate 650 is fixedly installed on the outer side of the outer frame 651 by bolts, and the adjacent telescopic cylinder 652 is fixedly installed on the connecting plate 650.

[0031] By controlling the operation of the telescopic cylinder 652, the telescopic cylinder 652 drives the outer frame 651 to rise, and the outer frame 651 drives the sleeve rod 655 to rise. The sleeve rod 655 drives the lifting screw rod 657 to rotate through the snap-fit ​​protrusion. The lifting screw rod 657 cannot rise under the action of the slider 659. The lifting screw rod 657 is inserted into the sleeve rod 655. However, since the telescopic cylinder 652 is set at a 45° angle, the outer frame 651 moves obliquely upward. Therefore, when the outer frame 651 rises, it will also drive the slider 659 to slide outward along the slide rail 66. The support head 658 moves away from the center plate positioning shaft 64. When this group of outer frames 651 rises, it will simultaneously drive the other outer frames 651 on the outside to rise at the same time. By controlling the telescopic cylinder 652 to extend the same length from the inside to the outside, the distance between adjacent support heads 658 can be changed synchronously and always remain consistent. After the adjustment is completed, the ring ribs 2 can be placed on the corresponding support heads 658 in sequence.

[0032] After one main rib 3 is welded, the rotary table 63 rotates, causing another set of main ribs 3 to rotate directly below the spot welding head 42. Then, the telescopic cylinder 652, which passes under the main rib 3, is controlled to operate. Since the support head 658 is restricted by the ring rib 2 and cannot rotate, the support head 658 restricts the rotation of the lifting screw rod 657 and also restricts the slider 659 from sliding along the slide rail 66. Therefore, the outer frame 651 cannot rise. The telescopic cylinder 652's telescopic end cylinder top spring 654 pushes the inner magnetic rod 653 with an oblique upward thrust. The inner magnetic rod 653 pushes the lifting screw rod 657 with a vertical upward thrust through the inclined surface. The lifting screw rod 657 provides a vertical upward thrust to the ring rib through the support head 658. Since the main rib 3 is clamped by the main rib support assembly 67, the spot welding position can be automatically detected as secure.

[0033] Example 4, based on the above examples, further includes a rotary table 63 with multiple sets of linear sliding openings 631 extending through its interior. The main rib support assembly 67 includes a bottom rod 671 slidably connected in the linear sliding openings 631. An adjusting nut 673 is rotatably mounted on the top of the bottom rod 671. A support screw 674 is threadedly connected to the inside of the adjusting nut 673. A rectangular sliding rod 675 is provided at the bottom of the support screw 674. The rectangular sliding rod 675 is slidably connected in the bottom rod 671. A second support head 676 is provided at the top of the support screw 674. A clamping rod 677 is threadedly connected to the inside of the second support head 676.

[0034] During clamping, first rotate the adjusting nut 673. The adjusting nut 673 drives the support screw 674 to rise and fall, and the support screw 674 drives the second support head 676 to rise and fall, so that the outer end of the main rib 3 is aligned with the second support head 676. Then, control the bottom rod 671 to slide along the straight sliding opening 631 so that the main rib 3 is inserted into the second support head 676. Then, rotate the clamping rod 677 down to clamp the main rib 3 in the second support head 676. The clamping is convenient.

[0035] Example 5, based on the above examples, further includes a lower adjusting plate 68 rotatably mounted on the bottom of the rotary table 63. The lower adjusting plate 68 has multiple sets of arc-shaped sliding grooves 681 circumferentially formed inside. A transmission cylinder 672 is provided at the bottom of the bottom rod 671. The transmission cylinder 672 is slidably connected in the arc-shaped sliding grooves 681. The inner wall of the lower adjusting plate 68 is provided with inner gear teeth. A drive motor is fixedly mounted on the top of the rotary table 63. The output end of the drive motor passes through the rotary table 63. An inner drive wheel 69 is fixedly mounted at the bottom of the output end of the drive motor. The inner drive wheel 69 meshes with the inner gear teeth.

[0036] By controlling the power supply of the drive motor, the drive motor drives the inner drive wheel 69 to rotate. The inner drive wheel 69 drives the lower adjustment plate 68 to rotate through the inner wheel teeth. The lower adjustment plate 68 drives the bottom rod 671 to slide along the straight sliding opening 631 through the arc-shaped sliding groove 681 and the transmission cylinder 672. Multiple sets of bottom rods 671 can be controlled to slide synchronously at one time. The control is simple, so that the main rib support assembly 67 can support the main ribs 3 of different lengths, which is suitable for air conditioner mesh covers of different specifications.

[0037] Example 6, based on the above examples, further includes a support head 658 arranged in a V-shape, so that the support head 658 can support ring reinforcements 2 of different thicknesses.

[0038] Example 7, based on the above examples, further includes a second support head 676 arranged in the form of an inverted trapezoid. This design allows the second support head 676 to be applicable to main reinforcement bars 3 of different widths.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous spot welding device for manufacturing air conditioner mesh covers, comprising an operating table (4), characterized in that, The top of the operating table (4) is equipped with a lifting spot welding cylinder (41), and a spot welding head (42) is fixedly installed on the telescopic end of the lifting spot welding cylinder (41). A moving opening is provided in the middle of the operating table (4), and a linear slide rail module (5) is installed inside the moving opening. A mesh cover support mechanism (6) is installed on the linear slide rail module (5). The mesh cover support mechanism (6) includes a mounting plate (61) fixedly installed on the linear slide rail module (5). A rotating platform (63) is rotatably installed on the top of the mounting plate (61). A center plate positioning shaft (64) is fixedly installed at the center of the top of the rotating platform (63). Multiple sets of ring rib support mechanisms are installed in a ring around the outer side of the center plate positioning shaft (64). Each set of ring rib support mechanisms consists of several ring rib support components (65). The spacing between adjacent ring rib support components (65) is adjustable. Multiple sets of main rib support components (67) are arranged in a ring around the top of the rotating platform (63). The main rib support components (67) and the ring rib support mechanisms are arranged alternately.

2. The continuous spot welding equipment for manufacturing air conditioner mesh covers according to claim 1, characterized in that, The outer side of the center plate positioning shaft (64) is threaded with an upper locking nut (641) and a lower top platform (642), which can clamp the air conditioner mesh cover center plate (1).

3. The continuous spot welding equipment for manufacturing air conditioner mesh covers according to claim 2, characterized in that, The top of the lower platform (642) is tapered.

4. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 3, characterized in that, The ring rib support assembly (65) includes a telescopic cylinder (652), which is inclined at 45°. An outer frame (651) is sleeved on the telescopic end of the telescopic cylinder (652). An inner magnetic rod (653) is slidably connected inside the outer frame (651). A top spring (654) is provided between the inner magnetic rod (653) and the telescopic end of the telescopic cylinder (652). The top of the inner magnetic rod (653) is inclined. A sleeve rod (655) is slidably connected to the top of the outer frame (651). The bottom of the sleeve (655) is provided with a triangular magnetic block (656), the bottom slope of the triangular magnetic block (656) is closely attached to the top of the inner magnetic rod (653) and is attracted to the top of the inner magnetic rod (653). The inner wall of the sleeve (655) is provided with a snap-fit ​​protrusion. The sleeve (655) is inserted with a lifting screw rod (657). The snap-fit ​​protrusion is inserted into the spiral groove on the outer surface of the lifting screw rod (657). The top of the lifting screw rod (657) is provided with a support head (658). The support head (658) can support the ring rib (2). The bottom of the support head (658) is rotatably mounted with a slider (659). The top of the rotary table (63) is circumferentially mounted with multiple sets of slide rails (66). The slide rails (66) are correspondingly set with the ring rib support mechanism. The sliders (659) in the same ring rib support mechanism are all slidably connected in the slide rails (66). The outer side of the center plate positioning shaft (64) is circumferentially set with multiple sets of side plates (643). The side plates (643) are correspondingly set with the ring rib support mechanism. The telescopic cylinder (652) closest to the center plate positioning shaft (64) is fixedly mounted on the side plate (643). The telescopic cylinders (652) in the remaining ring rib support assemblies (65) are sequentially fixedly mounted on the outer frame (651) in the adjacent ring rib support assembly (65). The adjacent ring rib support assembly (65) is close to the center plate positioning shaft (64).

5. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 4, characterized in that, A connecting plate (650) is fixedly installed on the outer side of the outer frame (651) by bolts, and the adjacent telescopic cylinder (652) is fixedly installed on the connecting plate (650).

6. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 5, characterized in that, The rotary table (63) has multiple sets of straight sliding openings (631) through its interior. The main rib support assembly (67) includes a bottom rod (671) slidably connected in the straight sliding openings (631). An adjusting nut (673) is rotatably installed on the top of the bottom rod (671). A support screw (674) is threadedly connected to the inside of the adjusting nut (673). A rectangular sliding rod (675) is provided at the bottom of the support screw (674). The rectangular sliding rod (675) is slidably connected in the bottom rod (671). A second support head (676) is provided at the top of the support screw (674). A clamping rod (677) is threadedly connected to the inside of the second support head (676).

7. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 6, characterized in that, The bottom of the rotary table (63) is rotatably mounted with a lower adjusting plate (68). The lower adjusting plate (68) has multiple sets of arc-shaped sliding grooves (681) in the inner ring. The bottom of the bottom rod (671) is provided with a transmission cylinder (672), which is slidably connected in the arc-shaped sliding groove (681). The inner wall of the lower adjusting plate (68) is provided with inner gear teeth. The top of the rotary table (63) is fixedly mounted with a drive motor. The output end of the drive motor passes through the rotary table (63). The bottom of the output end of the drive motor is fixedly mounted with an inner drive wheel (69), which meshes with the inner gear teeth.

8. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 7, characterized in that, The support head (658) is arranged in a V-shape.

9. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 8, characterized in that, The second support head (676) is arranged in the form of an inverted trapezoid.

10. A continuous spot welding device for manufacturing air conditioner mesh covers according to claim 9, characterized in that, The linear guide module (5) has an eccentric gap between the center line of the lead screw and the center line of the mounting plate (61). A rotary motor (62) is fixedly installed at the bottom of the mounting plate (61), and the output end of the rotary motor (62) is fixedly connected to the rotary table (63).

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